{"id":17227,"date":"2025-06-28T20:32:09","date_gmt":"2025-06-28T13:32:09","guid":{"rendered":"https:\/\/lctech.vn\/?p=17227"},"modified":"2025-06-28T20:32:09","modified_gmt":"2025-06-28T13:32:09","slug":"dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung","status":"publish","type":"post","link":"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/","title":{"rendered":"\u0110\u1ed3ng H\u1ed3 \u0110o L\u01b0u L\u01b0\u1ee3ng Kh\u00ed L\u00e0 G\u00ec? To\u00e0n T\u1eadp V\u1ec1 C\u00f4ng Ngh\u1ec7 v\u00e0 \u1ee8ng D\u1ee5ng"},"content":{"rendered":"<p><i>T\u1eeb nguy\u00ean l\u00fd c\u01a1 b\u1ea3n \u0111\u1ebfn 7 c\u00f4ng ngh\u1ec7 \u0111o ph\u1ed5 bi\u1ebfn, b\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u1ea3i m\u00e3 t\u1ea5t c\u1ea3 nh\u1eefng g\u00ec b\u1ea1n c\u1ea7n bi\u1ebft v\u1ec1 \u0111\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng kh\u00ed &#8211; thi\u1ebft b\u1ecb then ch\u1ed1t cho an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3 trong m\u1ecdi ng\u00e0nh c\u00f4ng nghi\u1ec7p.<\/i><\/p>\n<p><b>\u0110\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng kh\u00ed l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb k\u1ef9 thu\u1eadt \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf chuy\u00ean d\u1ee5ng \u0111\u1ec3 \u0111o l\u01b0\u1eddng v\u00e0 ghi nh\u1eadn t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y (l\u01b0u l\u01b0\u1ee3ng th\u1ec3 t\u00edch ho\u1eb7c kh\u1ed1i l\u01b0\u1ee3ng) c\u1ee7a c\u00e1c lo\u1ea1i kh\u00ed nh\u01b0 kh\u00ed thi\u00ean nhi\u00ean, kh\u00ed n\u00e9n, LPG, CO\u2082, Argon&#8230; khi ch\u00fang di chuy\u1ec3n qua m\u1ed9t h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng trong m\u1ed9t kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh. Thi\u1ebft b\u1ecb n\u00e0y \u0111\u00f3ng vai tr\u00f2 l\u00e0 &#8220;m\u1eaft th\u1ea7n&#8221;, gi\u00fap gi\u00e1m s\u00e1t, \u0111i\u1ec1u khi\u1ec3n v\u00e0 t\u1ed1i \u01b0u h\u00f3a vi\u1ec7c s\u1eed d\u1ee5ng kh\u00ed m\u1ed9t c\u00e1ch an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3.<\/b><\/p>\n<p>Trong th\u1ebf gi\u1edbi hi\u1ec7n \u0111\u1ea1i, kh\u00ed \u0111\u1ed1t v\u00e0 c\u00e1c lo\u1ea1i kh\u00ed c\u00f4ng nghi\u1ec7p l\u00e0 ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng v\u00e0 nguy\u00ean li\u1ec7u kh\u00f4ng th\u1ec3 thi\u1ebfu, t\u1eeb vi\u1ec7c \u0111un n\u1ea5u trong gia \u0111\u00ecnh, s\u01b0\u1edfi \u1ea5m c\u00e1c t\u00f2a nh\u00e0, cho \u0111\u1ebfn v\u1eadn h\u00e0nh nh\u1eefng d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t ph\u1ee9c t\u1ea1p. Tuy nhi\u00ean, kh\u00f4ng gi\u1ed1ng nh\u01b0 ch\u1ea5t l\u1ecfng, kh\u00ed l\u00e0 v\u00f4 h\u00ecnh v\u00e0 c\u00f3 t\u00ednh n\u00e9n cao, khi\u1ebfn cho vi\u1ec7c qu\u1ea3n l\u00fd v\u00e0 \u0111o l\u01b0\u1eddng ch\u00fang tr\u1edf th\u00e0nh m\u1ed9t th\u00e1ch th\u1ee9c l\u1edbn. L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 bi\u1ebft ch\u00ednh x\u00e1c l\u01b0\u1ee3ng kh\u00ed n\u00e9n \u0111ang \u0111\u01b0\u1ee3c ti\u00eau th\u1ee5? L\u00e0m sao \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o l\u01b0\u1ee3ng kh\u00ed thi\u00ean nhi\u00ean cung c\u1ea5p cho l\u00f2 \u0111\u1ed1t l\u00e0 t\u1ed1i \u01b0u? L\u00e0m c\u00e1ch n\u00e0o \u0111\u1ec3 ph\u00e1t hi\u1ec7n s\u1edbm m\u1ed9t s\u1ef1 c\u1ed1 r\u00f2 r\u1ec9 kh\u00ed gas ti\u1ec1m \u1ea9n nguy c\u01a1 ch\u00e1y n\u1ed5?<\/p>\n<p>C\u00e2u tr\u1ea3 l\u1eddi cho t\u1ea5t c\u1ea3 nh\u1eefng c\u00e2u h\u1ecfi tr\u00ean n\u1eb1m \u1edf m\u1ed9t thi\u1ebft b\u1ecb mang t\u00ean <b>\u0111\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng kh\u00ed<\/b> (Gas Flow Meter). \u0110\u00e2y kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 ghi nh\u1eadn con s\u1ed1, m\u00e0 c\u00f2n l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n chi\u1ebfn l\u01b0\u1ee3c trong vi\u1ec7c:<\/p>\n<ul>\n<li><b>Gi\u00e1m s\u00e1t v\u00e0 \u0110i\u1ec1u khi\u1ec3n:<\/b> Cung c\u1ea5p d\u1eef li\u1ec7u th\u1eddi gian th\u1ef1c \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh l\u01b0u l\u01b0\u1ee3ng kh\u00ed, \u0111\u00e1p \u1ee9ng ch\u00ednh x\u00e1c y\u00eau c\u1ea7u c\u1ee7a quy tr\u00ecnh s\u1ea3n xu\u1ea5t, pha tr\u1ed9n ho\u1eb7c ph\u00e2n ph\u1ed1i\u00b9.<\/li>\n<li><b>\u0110\u1ea3m b\u1ea3o An to\u00e0n:<\/b> L\u00e0 tuy\u1ebfn ph\u00f2ng th\u1ee7 \u0111\u1ea7u ti\u00ean gi\u00fap ph\u00e1t hi\u1ec7n c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng b\u1ea5t th\u01b0\u1eddng, ng\u0103n ng\u1eeba r\u00f2 r\u1ec9, \u0111\u1eb7c bi\u1ec7t v\u1edbi c\u00e1c lo\u1ea1i kh\u00ed d\u1ec5 ch\u00e1y ho\u1eb7c \u0111\u1ed9c h\u1ea1i.<\/li>\n<li><b>T\u1ed1i \u01b0u h\u00f3a Chi ph\u00ed v\u00e0 Hi\u1ec7u su\u1ea5t:<\/b> L\u00e0 c\u01a1 s\u1edf \u0111\u1ec3 t\u00ednh to\u00e1n chi ph\u00ed n\u0103ng l\u01b0\u1ee3ng, l\u1eadp h\u00f3a \u0111\u01a1n (billing) m\u1ed9t c\u00e1ch minh b\u1ea1ch, v\u00e0 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t s\u1eed d\u1ee5ng c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 m\u00e1y n\u00e9n kh\u00ed, l\u00f2 h\u01a1i, tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh v\u1ec1 m\u00f4i tr\u01b0\u1eddng\u00b3.<\/li>\n<\/ul>\n<p>B\u00e0i vi\u1ebft n\u00e0y s\u1ebd cung c\u1ea5p m\u1ed9t c\u00e1i nh\u00ecn to\u00e0n di\u1ec7n v\u00e0 chuy\u00ean s\u00e2u, gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 t\u1eeb nguy\u00ean t\u1eafc ho\u1ea1t \u0111\u1ed9ng, c\u00e1c c\u00f4ng ngh\u1ec7 \u0111o l\u01b0\u1eddng ph\u1ed5 bi\u1ebfn nh\u1ea5t, cho \u0111\u1ebfn c\u00e1ch l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb ph\u00f9 h\u1ee3p cho \u1ee9ng d\u1ee5ng c\u1ee7a m\u00ecnh.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">M\u1ee5c l\u1ee5c b\u00e0i vi\u1ebft<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Nguyen_Tac_Hoat_Dong_Cot_Loi_va_Thach_Thuc_Khi_Do_Luu_Luong_Khi\" >Nguy\u00ean T\u1eafc Ho\u1ea1t \u0110\u1ed9ng C\u1ed1t L\u00f5i v\u00e0 Th\u00e1ch Th\u1ee9c Khi \u0110o L\u01b0u L\u01b0\u1ee3ng Kh\u00ed<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Do_Luu_Luong_The_Tich_va_Do_Luu_Luong_Khoi_Luong\" >\u0110o L\u01b0u L\u01b0\u1ee3ng Th\u1ec3 T\u00edch v\u00e0 \u0110o L\u01b0u L\u01b0\u1ee3ng Kh\u1ed1i L\u01b0\u1ee3ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Thach_Thuc_Lon_Nhat_Tinh_Nen_Cua_Chat_Khi\" >Th\u00e1ch Th\u1ee9c L\u1edbn Nh\u1ea5t: T\u00ednh N\u00e9n C\u1ee7a Ch\u1ea5t Kh\u00ed<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Phan_Loai_7_Cong_Nghe_Dong_Ho_Do_Luu_Luong_Khi_Pho_Bien_Nhat\" >Ph\u00e2n Lo\u1ea1i 7 C\u00f4ng Ngh\u1ec7 \u0110\u1ed3ng H\u1ed3 \u0110o L\u01b0u L\u01b0\u1ee3ng Kh\u00ed Ph\u1ed5 Bi\u1ebfn Nh\u1ea5t<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#1_Dong_ho_tuabin_Turbine_Gas_Meter\" >1. \u0110\u1ed3ng h\u1ed3 tuabin (Turbine Gas Meter)<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Nguyen_ly_hoat_dong_chi_tiet\" >Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng chi ti\u1ebft<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Uu_diem_vuot_troi\" >\u01afu \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Han_che_va_Dieu_kien_su_dung\" >H\u1ea1n ch\u1ebf v\u00e0 \u0110i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Ung_dung_pho_bien\" >\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#2_Dong_ho_chenh_ap_Differential_Pressure_%E2%80%93_DP_Meter\" >2. \u0110\u1ed3ng h\u1ed3 ch\u00eanh \u00e1p (Differential Pressure &#8211; DP Meter)<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Nguyen_ly_hoat_dong_chi_tiet-2\" >Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng chi ti\u1ebft<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Uu_diem_vuot_troi-2\" >\u01afu \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Han_che_va_Dieu_kien_su_dung-2\" >H\u1ea1n ch\u1ebf v\u00e0 \u0110i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Ung_dung_pho_bien-2\" >\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#3_Dong_ho_khoi_luong_Coriolis_Coriolis_Mass_Meter\" >3. \u0110\u1ed3ng h\u1ed3 kh\u1ed1i l\u01b0\u1ee3ng Coriolis (Coriolis Mass Meter)<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Nguyen_ly_hoat_dong_chi_tiet-3\" >Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng chi ti\u1ebft<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Uu_diem_vuot_troi-3\" >\u01afu \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Han_che_va_Dieu_kien_su_dung-3\" >H\u1ea1n ch\u1ebf v\u00e0 \u0110i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Ung_dung_pho_bien-3\" >\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#4_Dong_ho_khoi_luong_nhiet_Thermal_Mass_Meter\" >4. \u0110\u1ed3ng h\u1ed3 kh\u1ed1i l\u01b0\u1ee3ng nhi\u1ec7t (Thermal Mass Meter)<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Nguyen_ly_hoat_dong_chi_tiet-4\" >Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng chi ti\u1ebft<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Uu_diem_vuot_troi-4\" >\u01afu \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Han_che_va_Dieu_kien_su_dung-4\" >H\u1ea1n ch\u1ebf v\u00e0 \u0110i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Ung_dung_pho_bien-4\" >\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#5_Dong_ho_sieu_am_Ultrasonic_Meter\" >5. \u0110\u1ed3ng h\u1ed3 si\u00eau \u00e2m (Ultrasonic Meter)<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Nguyen_ly_hoat_dong_chi_tiet-5\" >Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng chi ti\u1ebft<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Uu_diem_vuot_troi-5\" >\u01afu \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Han_che_va_Dieu_kien_su_dung-5\" >H\u1ea1n ch\u1ebf v\u00e0 \u0110i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Ung_dung_pho_bien-5\" >\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#6_Dong_ho_xoay_Vortex_Meter\" >6. \u0110\u1ed3ng h\u1ed3 xo\u00e1y (Vortex Meter)<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Nguyen_ly_hoat_dong_chi_tiet-6\" >Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng chi ti\u1ebft<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Uu_diem_vuot_troi-6\" >\u01afu \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Han_che_va_Dieu_kien_su_dung-6\" >H\u1ea1n ch\u1ebf v\u00e0 \u0110i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Ung_dung_pho_bien-6\" >\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#7_Dong_ho_the_tich_quay_Positive_Displacement_%E2%80%93_PD_Meter\" >7. \u0110\u1ed3ng h\u1ed3 th\u1ec3 t\u00edch quay (Positive Displacement &#8211; PD Meter)<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Nguyen_ly_hoat_dong_chi_tiet-7\" >Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng chi ti\u1ebft<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Uu_diem_vuot_troi-7\" >\u01afu \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-38\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Han_che_va_Dieu_kien_su_dung-7\" >H\u1ea1n ch\u1ebf v\u00e0 \u0110i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-39\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Ung_dung_pho_bien-7\" >\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-40\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Huong_Dan_Lua_Chon_Dong_Ho_Do_Luu_Luong_Khi_Phu_Hop_5_Yeu_To_Can_Can_Nhac\" >H\u01b0\u1edbng D\u1eabn L\u1ef1a Ch\u1ecdn \u0110\u1ed3ng H\u1ed3 \u0110o L\u01b0u L\u01b0\u1ee3ng Kh\u00ed Ph\u00f9 H\u1ee3p: 5 Y\u1ebfu T\u1ed1 C\u1ea7n C\u00e2n Nh\u1eafc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-41\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Cau_Hoi_Thuong_Gap_FAQ\" >C\u00e2u H\u1ecfi Th\u01b0\u1eddng G\u1eb7p (FAQ)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-42\" href=\"https:\/\/lctech.vn\/zh\/dong-ho-do-luu-luong-khi-la-gi-toan-tap-ve-cong-nghe-va-ung-dung\/#Ket_Luan\" >K\u1ebft Lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Nguyen_Tac_Hoat_Dong_Cot_Loi_va_Thach_Thuc_Khi_Do_Luu_Luong_Khi\"><\/span>Nguy\u00ean T\u1eafc Ho\u1ea1t \u0110\u1ed9ng C\u1ed1t L\u00f5i v\u00e0 Th\u00e1ch Th\u1ee9c Khi \u0110o L\u01b0u L\u01b0\u1ee3ng Kh\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0110\u1ec3 l\u1ef1a ch\u1ecdn v\u00e0 s\u1eed d\u1ee5ng hi\u1ec7u qu\u1ea3, vi\u1ec7c hi\u1ec3u r\u00f5 b\u1ea3n ch\u1ea5t v\u1eadt l\u00fd v\u00e0 nh\u1eefng th\u00e1ch th\u1ee9c \u0111\u1eb7c th\u00f9 khi \u0111o l\u01b0\u1eddng ch\u1ea5t kh\u00ed l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Do_Luu_Luong_The_Tich_va_Do_Luu_Luong_Khoi_Luong\"><\/span>\u0110o L\u01b0u L\u01b0\u1ee3ng Th\u1ec3 T\u00edch v\u00e0 \u0110o L\u01b0u L\u01b0\u1ee3ng Kh\u1ed1i L\u01b0\u1ee3ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>H\u1ea7u h\u1ebft c\u00e1c \u0111\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng kh\u00ed ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean hai nguy\u00ean t\u1eafc \u0111o ch\u00ednh:<\/p>\n<ol start=\"1\">\n<li><b>\u0110o l\u01b0u l\u01b0\u1ee3ng th\u1ec3 t\u00edch (Volumetric Flow Rate):<\/b> \u0110o l\u01b0\u1eddng kh\u00f4ng gian m\u00e0 kh\u00ed chi\u1ebfm ch\u1ed7 khi ch\u1ea3y qua \u0111\u1ed3ng h\u1ed3 trong m\u1ed9t \u0111\u01a1n v\u1ecb th\u1eddi gian. \u0110\u01a1n v\u1ecb th\u01b0\u1eddng l\u00e0 m\u00b3\/h, L\/ph\u00fat, SCFH (Standard Cubic Feet per Hour).<\/li>\n<li><b>\u0110o l\u01b0u l\u01b0\u1ee3ng kh\u1ed1i l\u01b0\u1ee3ng (Mass Flow Rate):<\/b> \u0110o l\u01b0\u1eddng kh\u1ed1i l\u01b0\u1ee3ng th\u1ef1c t\u1ebf c\u1ee7a kh\u00ed \u0111i qua, kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o kh\u00f4ng gian n\u00f3 chi\u1ebfm ch\u1ed7. \u0110\u01a1n v\u1ecb th\u01b0\u1eddng l\u00e0 kg\/h, g\/s, lb\/h.<\/li>\n<\/ol>\n<h3><span class=\"ez-toc-section\" id=\"Thach_Thuc_Lon_Nhat_Tinh_Nen_Cua_Chat_Khi\"><\/span>Th\u00e1ch Th\u1ee9c L\u1edbn Nh\u1ea5t: T\u00ednh N\u00e9n C\u1ee7a Ch\u1ea5t Kh\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y l\u00e0 \u0111i\u1ec3m kh\u00e1c bi\u1ec7t c\u0103n b\u1ea3n v\u00e0 l\u00e0 th\u00e1ch th\u1ee9c l\u1edbn nh\u1ea5t khi \u0111o kh\u00ed so v\u1edbi ch\u1ea5t l\u1ecfng. Th\u1ec3 t\u00edch c\u1ee7a m\u1ed9t l\u01b0\u1ee3ng kh\u00ed kh\u00f4ng c\u1ed1 \u0111\u1ecbnh, n\u00f3 thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 khi <b>\u00e1p su\u1ea5t<\/b> v\u00e0 <b>nhi\u1ec7t \u0111\u1ed9<\/b> thay \u0111\u1ed5i.<\/p>\n<ul>\n<li>Khi <b>\u00e1p su\u1ea5t t\u0103ng<\/b>, c\u00e1c ph\u00e2n t\u1eed kh\u00ed b\u1ecb n\u00e9n l\u1ea1i, th\u1ec3 t\u00edch gi\u1ea3m.<\/li>\n<li>Khi <b>nhi\u1ec7t \u0111\u1ed9 t\u0103ng<\/b>, c\u00e1c ph\u00e2n t\u1eed kh\u00ed chuy\u1ec3n \u0111\u1ed9ng nhanh h\u01a1n, th\u1ec3 t\u00edch t\u0103ng.<\/li>\n<\/ul>\n<p>\u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0, vi\u1ec7c \u0111o 1 m\u00b3 kh\u00ed \u1edf \u00e1p su\u1ea5t 1 bar s\u1ebd c\u00f3 l\u01b0\u1ee3ng v\u1eadt ch\u1ea5t ho\u00e0n to\u00e0n kh\u00e1c v\u1edbi vi\u1ec7c \u0111o 1 m\u00b3 kh\u00ed \u1edf \u00e1p su\u1ea5t 10 bar. \u0110\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y v\u00e0 \u0111\u1ea3m b\u1ea3o t\u00ednh c\u00f4ng b\u1eb1ng, ch\u00ednh x\u00e1c trong giao d\u1ecbch th\u01b0\u01a1ng m\u1ea1i ho\u1eb7c so s\u00e1nh hi\u1ec7u su\u1ea5t, c\u00e1c gi\u00e1 tr\u1ecb \u0111o th\u1ec3 t\u00edch th\u01b0\u1eddng ph\u1ea3i \u0111\u01b0\u1ee3c **quy \u0111\u1ed5i v\u1ec1 \u0111i\u1ec1u ki\u1ec7n ti\u00eau chu\u1ea9n (Standard Conditions)**\u2074.<\/p>\n<ul>\n<li><b>\u0110i\u1ec1u ki\u1ec7n ti\u00eau chu\u1ea9n (STP &#8211; Standard Temperature and Pressure):<\/b> Th\u01b0\u1eddng l\u00e0 0\u00b0C v\u00e0 1 atm.<\/li>\n<li><b>\u0110i\u1ec1u ki\u1ec7n b\u00ecnh th\u01b0\u1eddng (NTP &#8211; Normal Temperature and Pressure):<\/b> Th\u01b0\u1eddng l\u00e0 20\u00b0C v\u00e0 1 atm.<\/li>\n<li>L\u01b0u l\u01b0\u1ee3ng sau khi quy \u0111\u1ed5i \u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u l\u00e0 <b>Nm\u00b3\/h<\/b> (Normal cubic meter per hour) ho\u1eb7c <b>Sm\u00b3\/h<\/b> (Standard cubic meter per hour).<\/li>\n<\/ul>\n<p>Nhi\u1ec1u lo\u1ea1i \u0111\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng kh\u00ed hi\u1ec7n \u0111\u1ea1i \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p s\u1eb5n c\u1ea3m bi\u1ebfn \u00e1p su\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9 \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng th\u1ef1c hi\u1ec7n vi\u1ec7c b\u00f9 tr\u1eeb v\u00e0 \u0111\u01b0a ra k\u1ebft qu\u1ea3 \u0111\u00e3 \u0111\u01b0\u1ee3c quy \u0111\u1ed5i v\u1ec1 \u0111i\u1ec1u ki\u1ec7n ti\u00eau chu\u1ea9n.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Phan_Loai_7_Cong_Nghe_Dong_Ho_Do_Luu_Luong_Khi_Pho_Bien_Nhat\"><\/span>Ph\u00e2n Lo\u1ea1i 7 C\u00f4ng Ngh\u1ec7 \u0110\u1ed3ng H\u1ed3 \u0110o L\u01b0u L\u01b0\u1ee3ng Kh\u00ed Ph\u1ed5 Bi\u1ebfn Nh\u1ea5t<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Th\u1ebf gi\u1edbi c\u00f4ng ngh\u1ec7 \u0111o l\u01b0u l\u01b0\u1ee3ng kh\u00ed r\u1ea5t \u0111a d\u1ea1ng, m\u1ed7i lo\u1ea1i c\u00f3 \u01b0u, nh\u01b0\u1ee3c \u0111i\u1ec3m v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi nh\u1eefng \u1ee9ng d\u1ee5ng ri\u00eang bi\u1ec7t. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 7 lo\u1ea1i ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_Dong_ho_tuabin_Turbine_Gas_Meter\"><\/span>1. \u0110\u1ed3ng h\u1ed3 tuabin (Turbine Gas Meter)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"Nguyen_ly_hoat_dong_chi_tiet\"><\/span>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng chi ti\u1ebft<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>M\u1ed9t rotor (c\u00e1nh tuabin) \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ch\u00ednh x\u00e1c v\u00e0 \u0111\u1eb7t trong d\u00f2ng ch\u1ea3y c\u1ee7a kh\u00ed. Khi kh\u00ed \u0111i qua, n\u00f3 \u0111\u1ea9y c\u00e1c c\u00e1nh qu\u1ea1t l\u00e0m cho rotor quay. T\u1ed1c \u0111\u1ed9 g\u00f3c c\u1ee7a rotor t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi v\u1eadn t\u1ed1c c\u1ee7a d\u00f2ng kh\u00ed. M\u1ed9t c\u1ea3m bi\u1ebfn b\u00ean ngo\u00e0i s\u1ebd \u0111\u1ebfm s\u1ed1 v\u00f2ng quay v\u00e0 b\u1ed9 x\u1eed l\u00fd s\u1ebd chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u n\u00e0y th\u00e0nh l\u01b0u l\u01b0\u1ee3ng th\u1ec3 t\u00edch.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Uu_diem_vuot_troi\"><\/span>\u01afu \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>\u0110\u1ed9 ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ed9 l\u1eb7p l\u1ea1i t\u1ed1t trong d\u1ea3i \u0111o r\u1ed9ng.<\/li>\n<li>Chi ph\u00ed \u0111\u1ea7u t\u01b0 h\u1ee3p l\u00fd so v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng.<\/li>\n<li>T\u1ed5n th\u1ea5t \u00e1p su\u1ea5t th\u1ea5p.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Han_che_va_Dieu_kien_su_dung\"><\/span>H\u1ea1n ch\u1ebf v\u00e0 \u0110i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>C\u00f3 b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng (rotor, \u1ed5 bi) n\u00ean nh\u1ea1y c\u1ea3m v\u1edbi c\u1eb7n b\u1ea9n, b\u1ee5i ho\u1eb7c h\u01a1i \u1ea9m trong kh\u00ed, c\u00f3 th\u1ec3 g\u00e2y m\u00e0i m\u00f2n, k\u1eb9t v\u00e0 sai s\u1ed1\u00b3.<\/li>\n<li>Y\u00eau c\u1ea7u b\u1eaft bu\u1ed9c ph\u1ea3i l\u1eafp \u0111\u1eb7t b\u1ed9 l\u1ecdc kh\u00ed \u1edf \u0111\u1ea7u v\u00e0o.<\/li>\n<li>C\u1ea7n c\u00f3 m\u1ed9t \u0111o\u1ea1n \u1ed1ng th\u1eb3ng nh\u1ea5t \u0111\u1ecbnh tr\u01b0\u1edbc v\u00e0 sau \u0111\u1ed3ng h\u1ed3 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o d\u00f2ng ch\u1ea3y \u1ed5n \u0111\u1ecbnh.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Ung_dung_pho_bien\"><\/span>\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>\u0110o l\u01b0\u1eddng kh\u00ed thi\u00ean nhi\u00ean trong c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng truy\u1ec1n t\u1ea3i v\u00e0 ph\u00e2n ph\u1ed1i th\u1ee9 c\u1ea5p.<\/li>\n<li>\u0110o kh\u00ed n\u00e9n t\u1ea1i c\u00e1c \u0111i\u1ec3m s\u1eed d\u1ee5ng trong nh\u00e0 m\u00e1y.<\/li>\n<li>C\u00e1c \u1ee9ng d\u1ee5ng giao nh\u1eadn th\u01b0\u01a1ng m\u1ea1i (custody transfer) kh\u00f4ng y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c cao nh\u1ea5t.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"2_Dong_ho_chenh_ap_Differential_Pressure_%E2%80%93_DP_Meter\"><\/span>2. \u0110\u1ed3ng h\u1ed3 ch\u00eanh \u00e1p (Differential Pressure &#8211; DP Meter)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"Nguyen_ly_hoat_dong_chi_tiet-2\"><\/span>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng chi ti\u1ebft<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>C\u00f4ng ngh\u1ec7 n\u00e0y ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean \u0111\u1ecbnh lu\u1eadt Bernoulli. M\u1ed9t &#8220;ph\u1ea7n t\u1eed ch\u00ednh&#8221; (primary element) nh\u01b0 t\u1ea5m Orifice, \u1ed1ng Venturi, ho\u1eb7c \u1ed1ng Pitot \u0111\u01b0\u1ee3c \u0111\u1eb7t trong \u0111\u01b0\u1eddng \u1ed1ng \u0111\u1ec3 c\u1ed1 \u00fd t\u1ea1o ra m\u1ed9t v\u00f9ng th\u1eaft h\u1eb9p. Khi kh\u00ed \u0111i qua v\u00f9ng th\u1eaft n\u00e0y, v\u1eadn t\u1ed1c t\u0103ng l\u00ean v\u00e0 \u00e1p su\u1ea5t gi\u1ea3m xu\u1ed1ng. B\u1eb1ng c\u00e1ch \u0111o s\u1ef1 ch\u00eanh l\u1ec7ch \u00e1p su\u1ea5t (\u0394P) gi\u1eefa \u0111i\u1ec3m tr\u01b0\u1edbc v\u00e0 t\u1ea1i v\u00f9ng th\u1eaft, ta c\u00f3 th\u1ec3 suy ra \u0111\u01b0\u1ee3c l\u01b0u l\u01b0\u1ee3ng d\u00f2ng ch\u1ea3y.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Uu_diem_vuot_troi-2\"><\/span>\u01afu \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>C\u1ea5u tr\u00fac \u0111\u01a1n gi\u1ea3n, b\u1ec1n b\u1ec9, kh\u00f4ng c\u00f3 b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng.<\/li>\n<li>\u0110\u01b0\u1ee3c ch\u1ea5p nh\u1eadn r\u1ed9ng r\u00e3i cho c\u00e1c \u1ee9ng d\u1ee5ng giao nh\u1eadn th\u01b0\u01a1ng m\u1ea1i quan tr\u1ecdng.<\/li>\n<li>C\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u00e1p su\u1ea5t r\u1ea5t cao.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Han_che_va_Dieu_kien_su_dung-2\"><\/span>H\u1ea1n ch\u1ebf v\u00e0 \u0110i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>D\u1ea3i \u0111o (turndown ratio) h\u1eb9p, \u0111\u1ed9 nh\u1ea1y k\u00e9m \u1edf c\u00e1c m\u1ee9c l\u01b0u l\u01b0\u1ee3ng th\u1ea5p.<\/li>\n<li>G\u00e2y ra t\u1ed5n th\u1ea5t \u00e1p su\u1ea5t v\u0129nh vi\u1ec5n cho h\u1ec7 th\u1ed1ng.<\/li>\n<li>\u0110\u1ec3 t\u00ednh to\u00e1n ch\u00ednh x\u00e1c, c\u1ea7n ph\u1ea3i \u0111o th\u00eam nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u00e1p su\u1ea5t th\u1ef1c t\u1ebf c\u1ee7a d\u00f2ng kh\u00ed \u0111\u1ec3 b\u00f9 tr\u1eeb.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Ung_dung_pho_bien-2\"><\/span>\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>\u0110o l\u01b0u l\u01b0\u1ee3ng kh\u00ed t\u1ef1 nhi\u00ean, h\u01a1i n\u01b0\u1edbc, kh\u00ed c\u00f4ng nghi\u1ec7p tr\u00ean c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng l\u1edbn.<\/li>\n<li>C\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u s\u1ef1 b\u1ec1n b\u1ec9 v\u00e0 \u0111\u1ed9 tin c\u1eady trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"3_Dong_ho_khoi_luong_Coriolis_Coriolis_Mass_Meter\"><\/span>3. \u0110\u1ed3ng h\u1ed3 kh\u1ed1i l\u01b0\u1ee3ng Coriolis (Coriolis Mass Meter)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"Nguyen_ly_hoat_dong_chi_tiet-3\"><\/span>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng chi ti\u1ebft<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u0110\u00e2y l\u00e0 c\u00f4ng ngh\u1ec7 duy nh\u1ea5t \u0111o tr\u1ef1c ti\u1ebfp l\u01b0u l\u01b0\u1ee3ng kh\u1ed1i l\u01b0\u1ee3ng. Kh\u00ed \u0111\u01b0\u1ee3c d\u1eabn qua m\u1ed9t ho\u1eb7c hai \u1ed1ng \u0111o (th\u01b0\u1eddng c\u00f3 d\u1ea1ng ch\u1eef U ho\u1eb7c th\u1eb3ng) \u0111\u01b0\u1ee3c l\u00e0m cho dao \u0111\u1ed9ng \u1edf t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean. L\u1ef1c Coriolis sinh ra b\u1edfi d\u00f2ng kh\u00ed ch\u1ea3y trong \u1ed1ng dao \u0111\u1ed9ng s\u1ebd l\u00e0m \u1ed1ng b\u1ecb xo\u1eafn nh\u1eb9. M\u1ee9c \u0111\u1ed9 xo\u1eafn n\u00e0y, \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng c\u00e1c c\u1ea3m bi\u1ebfn, t\u1ef7 l\u1ec7 thu\u1eadn tr\u1ef1c ti\u1ebfp v\u1edbi l\u01b0u l\u01b0\u1ee3ng kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a kh\u00ed \u0111i qua.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Uu_diem_vuot_troi-3\"><\/span>\u01afu \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>\u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ef1c cao, l\u00e0 ti\u00eau chu\u1ea9n v\u00e0ng cho c\u00e1c \u1ee9ng d\u1ee5ng giao d\u1ecbch.<\/li>\n<li>\u0110o tr\u1ef1c ti\u1ebfp kh\u1ed1i l\u01b0\u1ee3ng, kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi s\u1ef1 thay \u0111\u1ed5i c\u1ee7a \u00e1p su\u1ea5t, nhi\u1ec7t \u0111\u1ed9, \u0111\u1ed9 nh\u1edbt hay th\u00e0nh ph\u1ea7n kh\u00ed\u00b2.<\/li>\n<li>Cung c\u1ea5p \u0111\u1ed3ng th\u1eddi nhi\u1ec1u th\u00f4ng s\u1ed1: l\u01b0u l\u01b0\u1ee3ng kh\u1ed1i l\u01b0\u1ee3ng, t\u1ef7 tr\u1ecdng, nhi\u1ec7t \u0111\u1ed9.<\/li>\n<li>Kh\u00f4ng c\u00f3 b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng, kh\u00f4ng c\u1ea7n b\u1ea3o tr\u00ec.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Han_che_va_Dieu_kien_su_dung-3\"><\/span>H\u1ea1n ch\u1ebf v\u00e0 \u0110i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>Chi ph\u00ed \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u r\u1ea5t cao.<\/li>\n<li>K\u00edch th\u01b0\u1edbc l\u1edbn v\u00e0 n\u1eb7ng, nh\u1ea1y c\u1ea3m v\u1edbi rung \u0111\u1ed9ng t\u1eeb b\u00ean ngo\u00e0i.<\/li>\n<li>C\u00f3 th\u1ec3 g\u00e2y s\u1ee5t \u00e1p \u0111\u00e1ng k\u1ec3.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Ung_dung_pho_bien-3\"><\/span>\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>Giao nh\u1eadn th\u01b0\u01a1ng m\u1ea1i kh\u00ed thi\u00ean nhi\u00ean, LPG, kh\u00ed h\u00f3a l\u1ecfng gi\u00e1 tr\u1ecb cao.<\/li>\n<li>C\u00e1c \u1ee9ng d\u1ee5ng pha tr\u1ed9n, \u0111\u1ecbnh l\u01b0\u1ee3ng y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c tuy\u1ec7t \u0111\u1ed1i.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"4_Dong_ho_khoi_luong_nhiet_Thermal_Mass_Meter\"><\/span>4. \u0110\u1ed3ng h\u1ed3 kh\u1ed1i l\u01b0\u1ee3ng nhi\u1ec7t (Thermal Mass Meter)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"Nguyen_ly_hoat_dong_chi_tiet-4\"><\/span>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng chi ti\u1ebft<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Thi\u1ebft b\u1ecb n\u00e0y s\u1eed d\u1ee5ng hai c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 (RTD). M\u1ed9t c\u1ea3m bi\u1ebfn (Heated Sensor) \u0111\u01b0\u1ee3c gia nhi\u1ec7t \u0111\u1ec3 duy tr\u00ec m\u1ed9t nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i, cao h\u01a1n nhi\u1ec7t \u0111\u1ed9 d\u00f2ng kh\u00ed. C\u1ea3m bi\u1ebfn c\u00f2n l\u1ea1i (Reference Sensor) \u0111o nhi\u1ec7t \u0111\u1ed9 th\u1ef1c t\u1ebf c\u1ee7a d\u00f2ng kh\u00ed. Khi kh\u00ed ch\u1ea3y qua, n\u00f3 s\u1ebd l\u00e0m m\u00e1t c\u1ea3m bi\u1ebfn \u0111\u01b0\u1ee3c gia nhi\u1ec7t. L\u01b0\u1ee3ng n\u0103ng l\u01b0\u1ee3ng c\u1ea7n thi\u1ebft \u0111\u1ec3 duy tr\u00ec ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i gi\u1eefa hai c\u1ea3m bi\u1ebfn s\u1ebd t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi l\u01b0u l\u01b0\u1ee3ng kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a kh\u00ed.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Uu_diem_vuot_troi-4\"><\/span>\u01afu \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>\u0110o tr\u1ef1c ti\u1ebfp l\u01b0u l\u01b0\u1ee3ng kh\u1ed1i l\u01b0\u1ee3ng m\u00e0 kh\u00f4ng c\u1ea7n b\u00f9 tr\u1eeb \u00e1p su\u1ea5t, nhi\u1ec7t \u0111\u1ed9.<\/li>\n<li>\u0110\u1ed9 nh\u1ea1y r\u1ea5t cao \u1edf c\u00e1c m\u1ee9c l\u01b0u l\u01b0\u1ee3ng th\u1ea5p.<\/li>\n<li>Chi ph\u00ed \u0111\u1ea7u t\u01b0 t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p, c\u1ea5u t\u1ea1o \u0111\u01a1n gi\u1ea3n.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Han_che_va_Dieu_kien_su_dung-4\"><\/span>H\u1ea1n ch\u1ebf v\u00e0 \u0110i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>Ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t v\u1edbi kh\u00ed s\u1ea1ch, kh\u00f4. H\u01a1i \u1ea9m ho\u1eb7c c\u1eb7n b\u1ea9n c\u00f3 th\u1ec3 b\u00e1m v\u00e0o c\u1ea3m bi\u1ebfn v\u00e0 g\u00e2y sai s\u1ed1 nghi\u00eam tr\u1ecdng.<\/li>\n<li>K\u1ebft qu\u1ea3 \u0111o ph\u1ee5 thu\u1ed9c v\u00e0o th\u00e0nh ph\u1ea7n c\u1ee7a kh\u00ed. N\u1ebfu th\u00e0nh ph\u1ea7n kh\u00ed thay \u0111\u1ed5i, c\u1ea7n ph\u1ea3i hi\u1ec7u chu\u1ea9n l\u1ea1i.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Ung_dung_pho_bien-4\"><\/span>\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>\u0110o kh\u00ed n\u00e9n, Nit\u01a1, Argon, CO\u2082 trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p s\u1ea1ch.<\/li>\n<li>Gi\u00e1m s\u00e1t r\u00f2 r\u1ec9 kh\u00ed trong h\u1ec7 th\u1ed1ng.<\/li>\n<li>Ki\u1ec3m so\u00e1t kh\u00ed trong c\u00e1c l\u00f2 \u0111\u1ed1t.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"5_Dong_ho_sieu_am_Ultrasonic_Meter\"><\/span>5. \u0110\u1ed3ng h\u1ed3 si\u00eau \u00e2m (Ultrasonic Meter)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"Nguyen_ly_hoat_dong_chi_tiet-5\"><\/span>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng chi ti\u1ebft<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>C\u00e1c c\u1eb7p c\u1ea3m bi\u1ebfn si\u00eau \u00e2m \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t \u0111\u1ed1i di\u1ec7n nhau tr\u00ean \u0111\u01b0\u1eddng \u1ed1ng. Ch\u00fang ho\u1ea1t \u0111\u1ed9ng theo nguy\u00ean t\u1eafc \u0111o th\u1eddi gian truy\u1ec1n (transit-time). M\u1ed9t c\u1ea3m bi\u1ebfn s\u1ebd ph\u00e1t xung si\u00eau \u00e2m \u0111i xu\u00f4i d\u00f2ng \u0111\u1ebfn c\u1ea3m bi\u1ebfn kia, v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. S\u00f3ng si\u00eau \u00e2m \u0111i xu\u00f4i d\u00f2ng s\u1ebd c\u00f3 th\u1eddi gian truy\u1ec1n nhanh h\u01a1n s\u00f3ng \u0111i ng\u01b0\u1ee3c d\u00f2ng. S\u1ef1 ch\u00eanh l\u1ec7ch v\u1ec1 th\u1eddi gian n\u00e0y t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi v\u1eadn t\u1ed1c c\u1ee7a d\u00f2ng kh\u00ed.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Uu_diem_vuot_troi-5\"><\/span>\u01afu \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>Kh\u00f4ng c\u00f3 b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng, kh\u00f4ng g\u00e2y s\u1ee5t \u00e1p, kh\u00f4ng c\u1ea7n b\u1ea3o tr\u00ec.<\/li>\n<li>D\u1ea3i \u0111o r\u1ea5t r\u1ed9ng, \u0111\u1ed9 ch\u00ednh x\u00e1c cao.<\/li>\n<li>C\u00f3 th\u1ec3 \u0111o hai chi\u1ec1u d\u00f2ng ch\u1ea3y.<\/li>\n<li>L\u00fd t\u01b0\u1edfng cho c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng c\u00f3 k\u00edch th\u01b0\u1edbc r\u1ea5t l\u1edbn.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Han_che_va_Dieu_kien_su_dung-5\"><\/span>H\u1ea1n ch\u1ebf v\u00e0 \u0110i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>Chi ph\u00ed \u0111\u1ea7u t\u01b0 cao.<\/li>\n<li>Y\u00eau c\u1ea7u b\u1ec1 m\u1eb7t b\u00ean trong \u1ed1ng ph\u1ea3i s\u1ea1ch v\u00e0 nh\u1eb5n. C\u1eb7n b\u1ea9n ho\u1eb7c \u0103n m\u00f2n c\u00f3 th\u1ec3 l\u00e0m nhi\u1ec5u t\u00edn hi\u1ec7u.<\/li>\n<li>Nh\u1ea1y c\u1ea3m v\u1edbi nhi\u1ec5u \u00e2m thanh v\u00e0 rung \u0111\u1ed9ng.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Ung_dung_pho_bien-5\"><\/span>\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>\u0110o l\u01b0\u1eddng giao nh\u1eadn th\u01b0\u01a1ng m\u1ea1i kh\u00ed thi\u00ean nhi\u00ean tr\u00ean c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng truy\u1ec1n t\u1ea3i ch\u00ednh.<\/li>\n<li>\u0110o kh\u00ed Fackelgas (flare gas).<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"6_Dong_ho_xoay_Vortex_Meter\"><\/span>6. \u0110\u1ed3ng h\u1ed3 xo\u00e1y (Vortex Meter)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"Nguyen_ly_hoat_dong_chi_tiet-6\"><\/span>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng chi ti\u1ebft<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>M\u1ed9t v\u1eadt c\u1ea3n (shedder bar) \u0111\u01b0\u1ee3c \u0111\u1eb7t vu\u00f4ng g\u00f3c v\u1edbi d\u00f2ng ch\u1ea3y. Khi kh\u00ed \u0111i qua v\u1eadt c\u1ea3n n\u00e0y, n\u00f3 s\u1ebd t\u1ea1o ra c\u00e1c d\u00f2ng xo\u00e1y xen k\u1ebd \u1edf ph\u00eda sau, m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 &#8220;d\u00e3y xo\u00e1y K\u00e1rm\u00e1n&#8221;. T\u1ea7n s\u1ed1 h\u00ecnh th\u00e0nh c\u1ee7a c\u00e1c d\u00f2ng xo\u00e1y n\u00e0y t\u1ef7 l\u1ec7 thu\u1eadn tr\u1ef1c ti\u1ebfp v\u1edbi v\u1eadn t\u1ed1c c\u1ee7a d\u00f2ng kh\u00ed. M\u1ed9t c\u1ea3m bi\u1ebfn s\u1ebd \u0111\u1ebfm t\u1ea7n s\u1ed1 n\u00e0y \u0111\u1ec3 t\u00ednh to\u00e1n l\u01b0u l\u01b0\u1ee3ng.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Uu_diem_vuot_troi-6\"><\/span>\u01afu \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>Kh\u00f4ng c\u00f3 b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng, c\u1ea5u t\u1ea1o b\u1ec1n b\u1ec9, \u00edt c\u1ea7n b\u1ea3o tr\u00ec.<\/li>\n<li>\u0110o ch\u00ednh x\u00e1c l\u01b0u l\u01b0\u1ee3ng th\u1ec3 t\u00edch.<\/li>\n<li>Chi ph\u00ed h\u1ee3p l\u00fd, ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c \u1edf nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u00e1p su\u1ea5t cao.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Han_che_va_Dieu_kien_su_dung-6\"><\/span>H\u1ea1n ch\u1ebf v\u00e0 \u0110i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>Kh\u00f4ng nh\u1ea1y \u1edf c\u00e1c m\u1ee9c l\u01b0u l\u01b0\u1ee3ng qu\u00e1 th\u1ea5p (c\u1ea7n m\u1ed9t v\u1eadn t\u1ed1c t\u1ed1i thi\u1ec3u \u0111\u1ec3 t\u1ea1o xo\u00e1y).<\/li>\n<li>Y\u00eau c\u1ea7u \u0111o\u1ea1n \u1ed1ng th\u1eb3ng d\u00e0i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o d\u00f2ng ch\u1ea3y \u1ed5n \u0111\u1ecbnh.<\/li>\n<li>Nh\u1ea1y c\u1ea3m v\u1edbi rung \u0111\u1ed9ng c\u1ee7a \u0111\u01b0\u1eddng \u1ed1ng.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Ung_dung_pho_bien-6\"><\/span>\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>\u0110o l\u01b0u l\u01b0\u1ee3ng h\u01a1i n\u01b0\u1edbc, kh\u00ed n\u00e9n v\u00e0 c\u00e1c lo\u1ea1i kh\u00ed c\u00f4ng nghi\u1ec7p n\u00f3i chung.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"7_Dong_ho_the_tich_quay_Positive_Displacement_%E2%80%93_PD_Meter\"><\/span>7. \u0110\u1ed3ng h\u1ed3 th\u1ec3 t\u00edch quay (Positive Displacement &#8211; PD Meter)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"Nguyen_ly_hoat_dong_chi_tiet-7\"><\/span>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng chi ti\u1ebft<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Lo\u1ea1i \u0111\u1ed3ng h\u1ed3 n\u00e0y, th\u01b0\u1eddng l\u00e0 d\u1ea1ng m\u00e0ng (diaphragm) ho\u1eb7c rotor quay (rotary), ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch &#8220;b\u1eaby&#8221; v\u00e0 &#8220;\u0111\u1ebfm&#8221; c\u00e1c l\u01b0\u1ee3ng th\u1ec3 t\u00edch kh\u00ed c\u1ed1 \u0111\u1ecbnh. Kh\u00ed \u0111i v\u00e0o m\u1ed9t bu\u1ed3ng \u0111o c\u00f3 th\u1ec3 t\u00edch \u0111\u00e3 bi\u1ebft, \u0111\u1ea9y m\u1ed9t c\u01a1 c\u1ea5u (m\u00e0ng ng\u0103n ho\u1eb7c rotor) quay, v\u00e0 sau \u0111\u00f3 tho\u00e1t ra. M\u1ed7i chu k\u1ef3 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u01a1 c\u1ea5u t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ed9t l\u01b0\u1ee3ng th\u1ec3 t\u00edch kh\u00ed \u0111\u00e3 \u0111i qua.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Uu_diem_vuot_troi-7\"><\/span>\u01afu \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>\u0110o tr\u1ef1c ti\u1ebfp th\u1ec3 t\u00edch r\u1ea5t ch\u00ednh x\u00e1c, \u0111\u1eb7c bi\u1ec7t \u1edf l\u01b0u l\u01b0\u1ee3ng th\u1ea5p.<\/li>\n<li>C\u1ea5u t\u1ea1o \u0111\u01a1n gi\u1ea3n, ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng c\u1ea7n ngu\u1ed3n \u0111i\u1ec7n ngo\u00e0i (lo\u1ea1i c\u01a1 kh\u00ed).<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Han_che_va_Dieu_kien_su_dung-7\"><\/span>H\u1ea1n ch\u1ebf v\u00e0 \u0110i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>C\u00f3 b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng n\u00ean d\u1ec5 b\u1ecb m\u00e0i m\u00f2n, c\u1ea7n b\u1ea3o tr\u00ec.<\/li>\n<li>G\u00e2y ra t\u1ed5n th\u1ea5t \u00e1p su\u1ea5t \u0111\u00e1ng k\u1ec3.<\/li>\n<li>Kh\u00f4ng ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 l\u01b0u l\u01b0\u1ee3ng l\u1edbn ho\u1eb7c \u00e1p su\u1ea5t cao.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Ung_dung_pho_bien-7\"><\/span>\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>\u0110\u00e2y ch\u00ednh l\u00e0 lo\u1ea1i \u0111\u1ed3ng h\u1ed3 \u0111o gas d\u00e2n d\u1ee5ng m\u00e0 ch\u00fang ta th\u01b0\u1eddng th\u1ea5y \u1edf c\u00e1c h\u1ed9 gia \u0111\u00ecnh, nh\u00e0 h\u00e0ng.<\/li>\n<li>\u0110o l\u01b0\u1eddng th\u01b0\u01a1ng m\u1ea1i kh\u00ed gas t\u1ea1i c\u00e1c \u0111i\u1ec3m ti\u00eau th\u1ee5 nh\u1ecf.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Huong_Dan_Lua_Chon_Dong_Ho_Do_Luu_Luong_Khi_Phu_Hop_5_Yeu_To_Can_Can_Nhac\"><\/span>H\u01b0\u1edbng D\u1eabn L\u1ef1a Ch\u1ecdn \u0110\u1ed3ng H\u1ed3 \u0110o L\u01b0u L\u01b0\u1ee3ng Kh\u00ed Ph\u00f9 H\u1ee3p: 5 Y\u1ebfu T\u1ed1 C\u1ea7n C\u00e2n Nh\u1eafc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang c\u00f4ng ngh\u1ec7 l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u qu\u1ea3 v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed. H\u00e3y xem x\u00e9t 5 y\u1ebfu t\u1ed1 sau:<\/p>\n<ol start=\"1\">\n<li><b>\u0110\u1eb7c T\u00ednh C\u1ee7a Lo\u1ea1i Kh\u00ed:<\/b>\n<ul>\n<li><b>Kh\u00ed s\u1ea1ch, kh\u00f4 (kh\u00ed n\u00e9n, N\u2082, O\u2082):<\/b> Thermal Mass, Vortex, Turbine l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t.<\/li>\n<li><b>Kh\u00ed b\u1ea9n, \u1ea9m, \u0103n m\u00f2n:<\/b> DP, Coriolis, ho\u1eb7c Ultrasonic s\u1ebd b\u1ec1n b\u1ec9 h\u01a1n.<\/li>\n<li><b>Th\u00e0nh ph\u1ea7n kh\u00ed thay \u0111\u1ed5i:<\/b> Tr\u00e1nh d\u00f9ng Thermal Mass. Coriolis l\u00e0 l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng.<\/li>\n<\/ul>\n<\/li>\n<li><b>Y\u00eau C\u1ea7u V\u1ec1 \u0110\u1ed9 Ch\u00ednh X\u00e1c:<\/b>\n<ul>\n<li><b>Giao nh\u1eadn th\u01b0\u01a1ng m\u1ea1i, t\u00ednh h\u00f3a \u0111\u01a1n:<\/b> Y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c cao. \u01afu ti\u00ean Coriolis, Ultrasonic, Turbine, DP (v\u1edbi \u0111\u1ea7y \u0111\u1ee7 b\u1ed9 b\u00f9 tr\u1eeb).<\/li>\n<li><b>\u0110i\u1ec1u khi\u1ec3n quy tr\u00ecnh:<\/b> Vortex, Thermal Mass, Turbine th\u01b0\u1eddng \u0111\u00e1p \u1ee9ng t\u1ed1t.<\/li>\n<li><b>Gi\u00e1m s\u00e1t n\u1ed9i b\u1ed9:<\/b> C\u00f3 th\u1ec3 ch\u1ecdn c\u00e1c lo\u1ea1i c\u00f3 chi ph\u00ed th\u1ea5p h\u01a1n.<\/li>\n<\/ul>\n<\/li>\n<li><b>\u0110i\u1ec1u Ki\u1ec7n V\u1eadn H\u00e0nh:<\/b>\n<ul>\n<li><b>D\u1ea3i l\u01b0u l\u01b0\u1ee3ng (Turndown Ratio):<\/b> X\u00e1c \u0111\u1ecbnh l\u01b0u l\u01b0\u1ee3ng min\/max. Coriolis v\u00e0 Ultrasonic c\u00f3 d\u1ea3i \u0111o r\u1ed9ng nh\u1ea5t.<\/li>\n<li><b>Nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u00c1p su\u1ea5t:<\/b> \u0110\u1ea3m b\u1ea3o \u0111\u1ed3ng h\u1ed3 c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c kh\u1eafc nghi\u1ec7t c\u1ee7a h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n<\/li>\n<li><b>Y\u00eau C\u1ea7u L\u1eafp \u0110\u1eb7t v\u00e0 B\u1ea3o Tr\u00ec:<\/b>\n<ul>\n<li><b>Kh\u00f4ng gian:<\/b> N\u1ebfu kh\u00f4ng gian h\u1eb9p, kh\u00f4ng c\u00f3 \u0111o\u1ea1n \u1ed1ng th\u1eb3ng, h\u00e3y c\u00e2n nh\u1eafc Coriolis, PD.<\/li>\n<li><b>B\u1ea3o tr\u00ec:<\/b> N\u1ebfu mu\u1ed1n gi\u1ea3m thi\u1ec3u vi\u1ec7c b\u1ea3o tr\u00ec, h\u00e3y ch\u1ecdn c\u00e1c lo\u1ea1i kh\u00f4ng c\u00f3 b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng nh\u01b0 Coriolis, Ultrasonic, Vortex, Thermal Mass.<\/li>\n<\/ul>\n<\/li>\n<li><b>Ng\u00e2n S\u00e1ch v\u00e0 T\u1ed5ng Chi Ph\u00ed S\u1edf H\u1eefu (TCO):<\/b> \u0110\u1eebng ch\u1ec9 nh\u00ecn v\u00e0o gi\u00e1 mua ban \u0111\u1ea7u. H\u00e3y c\u00e2n nh\u1eafc c\u1ea3 chi ph\u00ed l\u1eafp \u0111\u1eb7t, b\u1ea3o tr\u00ec, hi\u1ec7u chu\u1ea9n v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a thi\u1ebft b\u1ecb. M\u1ed9t chi\u1ebfc \u0111\u1ed3ng h\u1ed3 Coriolis \u0111\u1eaft ti\u1ec1n c\u00f3 th\u1ec3 mang l\u1ea1i TCO th\u1ea5p h\u01a1n trong d\u00e0i h\u1ea1n so v\u1edbi m\u1ed9t chi\u1ebfc Turbine r\u1ebb ti\u1ec1n nh\u01b0ng c\u1ea7n thay th\u1ebf, b\u1ea3o tr\u00ec th\u01b0\u1eddng xuy\u00ean.<\/li>\n<\/ol>\n<p>N\u1ebfu b\u1ea1n v\u1eabn c\u00f2n ph\u00e2n v\u00e2n, \u0111\u1eebng ng\u1ea7n ng\u1ea1i <b>li\u00ean h\u1ec7 v\u1edbi c\u00e1c chuy\u00ean gia k\u1ef9 thu\u1eadt c\u1ee7a [T\u00ean Th\u01b0\u01a1ng Hi\u1ec7u]<\/b>. Ch\u00fang t\u00f4i s\u1ebd gi\u00fap b\u1ea1n ph\u00e2n t\u00edch \u1ee9ng d\u1ee5ng v\u00e0 l\u1ef1a ch\u1ecdn gi\u1ea3i ph\u00e1p \u0111o l\u01b0\u1eddng t\u1ed1i \u01b0u nh\u1ea5t.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cau_Hoi_Thuong_Gap_FAQ\"><\/span>C\u00e2u H\u1ecfi Th\u01b0\u1eddng G\u1eb7p (FAQ)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><b>1. L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i l\u01b0u l\u01b0\u1ee3ng kh\u00ed v\u1ec1 \u0111i\u1ec1u ki\u1ec7n ti\u00eau chu\u1ea9n (Nm\u00b3\/h)?<\/b> Vi\u1ec7c n\u00e0y \u0111\u00f2i h\u1ecfi ph\u1ea3i \u0111o \u0111\u01b0\u1ee3c l\u01b0u l\u01b0\u1ee3ng th\u1ec3 t\u00edch \u1edf \u0111i\u1ec1u ki\u1ec7n th\u1ef1c t\u1ebf (Am\u00b3\/h), c\u00f9ng v\u1edbi \u00e1p su\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9 t\u1ea1i th\u1eddi \u0111i\u1ec3m \u0111\u00f3. Sau \u0111\u00f3, \u00e1p d\u1ee5ng \u0110\u1ecbnh lu\u1eadt Kh\u00ed k\u1ebft h\u1ee3p (Combined Gas Law) \u0111\u1ec3 t\u00ednh to\u00e1n. C\u00e1c lo\u1ea1i \u0111\u1ed3ng h\u1ed3 hi\u1ec7n \u0111\u1ea1i th\u01b0\u1eddng \u0111\u00e3 t\u00edch h\u1ee3p b\u1ed9 t\u00ednh to\u00e1n n\u00e0y.<\/p>\n<p><b>2. \u0110\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng kh\u00ed c\u00f3 c\u1ea7n ki\u1ec3m \u0111\u1ecbnh kh\u00f4ng?<\/b> C\u00f3. \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng \u0111o l\u01b0\u1eddng \u0111\u1ec3 t\u00ednh ti\u1ec1n, giao nh\u1eadn th\u01b0\u01a1ng m\u1ea1i (kh\u00ed gas, kh\u00ed thi\u00ean nhi\u00ean), vi\u1ec7c ki\u1ec3m \u0111\u1ecbnh ban \u0111\u1ea7u v\u00e0 \u0111\u1ecbnh k\u1ef3 l\u00e0 y\u00eau c\u1ea7u b\u1eaft bu\u1ed9c theo quy \u0111\u1ecbnh c\u1ee7a ph\u00e1p lu\u1eadt (v\u00ed d\u1ee5: t\u1ea1i Vi\u1ec7t Nam l\u00e0 theo quy \u0111\u1ecbnh c\u1ee7a T\u1ed5ng c\u1ee5c Ti\u00eau chu\u1ea9n \u0110o l\u01b0\u1eddng Ch\u1ea5t l\u01b0\u1ee3ng).<\/p>\n<p><b>3. S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa \u0111\u1ed3ng h\u1ed3 \u0111o kh\u00ed gas d\u00e2n d\u1ee5ng v\u00e0 c\u00f4ng nghi\u1ec7p l\u00e0 g\u00ec?<\/b> \u0110\u1ed3ng h\u1ed3 d\u00e2n d\u1ee5ng th\u01b0\u1eddng l\u00e0 lo\u1ea1i th\u1ec3 t\u00edch quay (m\u00e0ng ng\u0103n), thi\u1ebft k\u1ebf cho l\u01b0u l\u01b0\u1ee3ng th\u1ea5p, \u00e1p su\u1ea5t th\u1ea5p v\u00e0 kh\u00f4ng y\u00eau c\u1ea7u truy\u1ec1n t\u00edn hi\u1ec7u \u0111i xa. \u0110\u1ed3ng h\u1ed3 c\u00f4ng nghi\u1ec7p \u0111a d\u1ea1ng h\u01a1n v\u1ec1 c\u00f4ng ngh\u1ec7, \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o \u0111\u1ec3 ch\u1ecbu \u00e1p su\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9 cao, v\u1eadt li\u1ec7u b\u1ec1n b\u1ec9 v\u00e0 c\u00f3 c\u00e1c ng\u00f5 ra t\u00edn hi\u1ec7u \u0111\u1ec3 t\u00edch h\u1ee3p v\u00e0o h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Ket_Luan\"><\/span>K\u1ebft Lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>T\u1eeb vi\u1ec7c \u0111\u1ea3m b\u1ea3o an to\u00e0n trong nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t \u0111\u1ebfn vi\u1ec7c t\u00ednh to\u00e1n ch\u00ednh x\u00e1c h\u00f3a \u0111\u01a1n ti\u1ec1n gas h\u00e0ng th\u00e1ng, <b>\u0111\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng kh\u00ed<\/b> l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb \u00e2m th\u1ea7m nh\u01b0ng \u0111\u00f3ng vai tr\u00f2 c\u1ef1c k\u1ef3 quan tr\u1ecdng. Vi\u1ec7c hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c c\u00f4ng ngh\u1ec7 &#8211; t\u1eeb s\u1ef1 m\u1ea1nh m\u1ebd c\u1ee7a \u0111\u1ed3ng h\u1ed3 ch\u00eanh \u00e1p, \u0111\u1ed9 ch\u00ednh x\u00e1c tuy\u1ec7t \u0111\u1ed1i c\u1ee7a Coriolis, cho \u0111\u1ebfn s\u1ef1 linh ho\u1ea1t c\u1ee7a \u0111\u1ed3ng h\u1ed3 si\u00eau \u00e2m &#8211; l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u1ec3 \u0111\u01b0a ra l\u1ef1a ch\u1ecdn \u0111\u1ea7u t\u01b0 \u0111\u00fang \u0111\u1eafn.<\/p>\n<p>M\u1ed9t h\u1ec7 th\u1ed1ng \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn v\u00e0 l\u1eafp \u0111\u1eb7t ph\u00f9 h\u1ee3p kh\u00f4ng ch\u1ec9 gi\u00fap t\u1ed1i \u01b0u h\u00f3a chi ph\u00ed n\u0103ng l\u01b0\u1ee3ng v\u00e0 nguy\u00ean li\u1ec7u, m\u00e0 c\u00f2n l\u00e0 m\u1ed9t l\u00e1 ch\u1eafn an to\u00e0n, b\u1ea3o v\u1ec7 con ng\u01b0\u1eddi v\u00e0 t\u00e0i s\u1ea3n kh\u1ecfi nh\u1eefng r\u1ee7i ro ti\u1ec1m \u1ea9n. Trong th\u1ebf gi\u1edbi c\u00f4ng nghi\u1ec7p ng\u00e0y c\u00e0ng \u0111\u00f2i h\u1ecfi cao v\u1ec1 hi\u1ec7u qu\u1ea3 v\u00e0 an to\u00e0n, \u0111\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng kh\u00ed ch\u00ednh l\u00e0 m\u1ed9t trong nh\u1eefng c\u00f4ng c\u1ee5 kh\u00f4ng th\u1ec3 thi\u1ebfu \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c nh\u1eefng m\u1ee5c ti\u00eau \u0111\u00f3.<\/p>\n<p><b>B\u1ea1n \u0111ang t\u00ecm ki\u1ebfm m\u1ed9t gi\u1ea3i ph\u00e1p \u0111o l\u01b0\u1eddng kh\u00ed ch\u00ednh x\u00e1c v\u00e0 \u0111\u00e1ng tin c\u1eady cho h\u1ec7 th\u1ed1ng c\u1ee7a m\u00ecnh? H\u00e3y li\u00ean h\u1ec7 ngay v\u1edbi \u0111\u1ed9i ng\u0169 chuy\u00ean gia c\u1ee7a LC TECH \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n v\u00e0 nh\u1eadn b\u00e1o gi\u00e1 chi ti\u1ebft cho s\u1ea3n ph\u1ea9m ph\u00f9 h\u1ee3p nh\u1ea5t!<\/b><\/p>","protected":false},"excerpt":{"rendered":"<p>T\u1eeb nguy\u00ean l\u00fd c\u01a1 b\u1ea3n \u0111\u1ebfn 7 c\u00f4ng ngh\u1ec7 \u0111o ph\u1ed5 bi\u1ebfn, b\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u1ea3i m\u00e3 t\u1ea5t c\u1ea3<\/p>","protected":false},"author":1,"featured_media":16808,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[],"class_list":["post-17227","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.5 (Yoast SEO v25.8) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u0110\u1ed3ng H\u1ed3 \u0110o L\u01b0u L\u01b0\u1ee3ng Kh\u00ed L\u00e0 G\u00ec? 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