{"id":4223,"date":"2024-02-25T10:16:42","date_gmt":"2024-02-25T10:16:42","guid":{"rendered":"http:\/\/biogroupvietnam-worldpress.local\/2025\/08\/18\/dangers-of-overfilling-your-cryogenic\/"},"modified":"2026-03-24T11:21:32","modified_gmt":"2026-03-24T04:21:32","slug":"nguy-co-khi-nap-nito-long-vao-binh-luu-tru-cryogenic-dewar-qua-day","status":"publish","type":"post","link":"https:\/\/biogroupvietnam.com\/vi\/blog\/nguy-co-khi-nap-nito-long-vao-binh-luu-tru-cryogenic-dewar-qua-day\/","title":{"rendered":"Nguy c\u01a1 khi n\u1ea1p qu\u00e1 \u0111\u1ea7y nit\u01a1 l\u1ecfng v\u00e0o b\u00ecnh l\u01b0u tr\u1eef Cryogenic Dewar"},"content":{"rendered":"<p>\u0110\u00f4i khi, kh\u00e1ch h\u00e0ng b\u00e0y t\u1ecf lo ng\u1ea1i khi m\u1ed9t b\u00ecnh Dewar nit\u01a1 l\u1ecfng (LN\u2082) b\u1ecb m\u1ea5t ch\u00e2n kh\u00f4ng \u0111\u1ed9t ng\u1ed9t. C\u00e1c b\u00ecnh n\u00e0y \u0111\u01b0\u1ee3c g\u1eedi tr\u1ea3 v\u1ec1 v\u00e0 \u0111\u01b0\u1ee3c ki\u1ec3m tra ngay l\u1eadp t\u1ee9c, sau \u0111\u00f3 ti\u1ebfn h\u00e0nh h\u00fat ch\u00e2n kh\u00f4ng l\u1ea1i v\u00e0 th\u1eed nghi\u1ec7m v\u1edbi nit\u01a1 l\u1ecfng (LN\u2082). K\u1ebft qu\u1ea3 cho th\u1ea5y <strong>nguy\u00ean nh\u00e2n ch\u1ee7 y\u1ebfu c\u1ee7a hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t ch\u00e2n kh\u00f4ng<\/strong> l\u00e0 do quy tr\u00ecnh n\u1ea1p kh\u00f4ng \u0111\u00fang, \u0111i\u1ec3n h\u00ecnh l\u00e0 <strong>n\u1ea1p qu\u00e1 \u0111\u1ea7y<\/strong>. B\u00e0i vi\u1ebft n\u00e0y gi\u1ea3i th\u00edch v\u00ec sao vi\u1ec7c tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t quy tr\u00ecnh n\u1ea1p m\u1ed9t c\u00e1ch c\u1ea9n tr\u1ecdng l\u00e0 h\u1ebft s\u1ee9c quan tr\u1ecdng, th\u00f4ng qua 2 v\u1ea5n \u0111\u1ec1 ch\u00ednh:<\/p>\n<p><strong>V\u1ea5n \u0111\u1ec1 1:<\/strong> Xu\u1ea5t ph\u00e1t t\u1eeb v\u1ecb tr\u00ed h\u00fat ch\u00e2n kh\u00f4ng c\u1ee7a b\u00ecnh l\u01b0u tr\u1eef<\/p>\n<p><strong>V\u1ea5n \u0111\u1ec1 2:<\/strong> Xu\u1ea5t ph\u00e1t t\u1eeb vi\u1ec7c n\u1ea1p nit\u01a1 l\u1ecfng qu\u00e1 \u0111\u1ea7y<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_80 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<\/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:\/\/biogroupvietnam.com\/vi\/blog\/nguy-co-khi-nap-nito-long-vao-binh-luu-tru-cryogenic-dewar-qua-day\/#Van_de_xuat_phat_tu_vi_tri_hut_chan_khong_cua_binh_luu_tru\" >V\u1ea5n \u0111\u1ec1 xu\u1ea5t ph\u00e1t t\u1eeb v\u1ecb tr\u00ed h\u00fat ch\u00e2n kh\u00f4ng c\u1ee7a b\u00ecnh l\u01b0u tr\u1eef<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/biogroupvietnam.com\/vi\/blog\/nguy-co-khi-nap-nito-long-vao-binh-luu-tru-cryogenic-dewar-qua-day\/#Van_de_xuat_phat_tu_viec_nap_nito_long_qua_day\" >V\u1ea5n \u0111\u1ec1 xu\u1ea5t ph\u00e1t t\u1eeb vi\u1ec7c n\u1ea1p nit\u01a1 l\u1ecfng qu\u00e1 \u0111\u1ea7y<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Van_de_xuat_phat_tu_vi_tri_hut_chan_khong_cua_binh_luu_tru\"><\/span><strong>V\u1ea5n \u0111\u1ec1 xu\u1ea5t ph\u00e1t t\u1eeb v\u1ecb tr\u00ed h\u00fat ch\u00e2n kh\u00f4ng c\u1ee7a b\u00ecnh l\u01b0u tr\u1eef<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>M\u1ed9t trong nh\u1eefng <strong>v\u1ecb tr\u00ed then ch\u1ed1t<\/strong> quy\u1ebft \u0111\u1ecbnh kh\u1ea3 n\u0103ng duy tr\u00ec ch\u00e2n kh\u00f4ng c\u1ee7a b\u00ecnh l\u01b0u tr\u1eef l\u00e0 c\u1ee5m <strong>c\u1ed5ng h\u00fat ch\u00e2n kh\u00f4ng (pumpout)<\/strong>. N\u00fat b\u1ecbt c\u1ed5ng h\u00fat ch\u00e2n kh\u00f4ng (pumpout plug) c\u00f3 hai ch\u1ee9c n\u0103ng. Th\u1ee9 nh\u1ea5t v\u00e0 quan tr\u1ecdng nh\u1ea5t l\u00e0 duy tr\u00ec ch\u00e2n kh\u00f4ng trong khoang v\u00f2ng (annular space) gi\u1eefa hai l\u1edbp v\u1ecf c\u1ee7a b\u00ecnh. Th\u1ee9 hai, n\u00fat n\u00e0y \u0111\u1ed3ng th\u1eddi \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t c\u01a1 c\u1ea5u x\u1ea3 \u00e1p an to\u00e0n trong tr\u01b0\u1eddng h\u1ee3p x\u1ea3y ra r\u00f2 r\u1ec9 nghi\u00eam tr\u1ecdng \u1edf l\u1edbp trong, khi\u1ebfn nit\u01a1 l\u1ecfng x\u00e2m nh\u1eadp v\u00e0o khoang v\u00f2ng; khi \u0111\u00f3 n\u00fat c\u00f3 th\u1ec3 b\u1eadt\/r\u01a1i ra \u0111\u1ec3 gi\u1ea3i ph\u00f3ng \u00e1p su\u1ea5t t\u00edch t\u1ee5.<\/p>\n<div style=\"width: 250px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/biogroupvietnam.com\/wp-content\/uploads\/2025\/09\/asCYwWeSCYIVsmk9Z1WUlNGgXfmcIyvDeUZyT5S3.png\" alt=\"N\u1eafp che m\u1ed1i h\u00e0n ch\u00e2n kh\u00f4ng tr\u00ean b\u00ecnh l\u01b0u tr\u1eef\" width=\"240\" height=\"240\" \/><p class=\"wp-caption-text\"><em>N\u1eafp che m\u1ed1i h\u00e0n ch\u00e2n kh\u00f4ng tr\u00ean b\u00ecnh l\u01b0u tr\u1eef<\/em><\/p><\/div>\n<p>Khi nit\u01a1 l\u1ecfng bay h\u01a1i th\u00e0nh kh\u00ed v\u00e0 gi\u00e3n n\u1edf, \u00e1p su\u1ea5t trong khoang v\u00f2ng s\u1ebd t\u0103ng l\u00ean. Hai v\u00f2ng \u0111\u1ec7m O-ring \u0111\u1ea3m nhi\u1ec7m ch\u1ee9c n\u0103ng l\u00e0m k\u00edn gi\u1eefa n\u00fat v\u00e0 th\u00e2n c\u1ed5ng h\u00fat ch\u00e2n kh\u00f4ng, \u0111\u1ed3ng th\u1eddi \u0111\u01b0\u1ee3c ph\u1ee7 m\u1ed9t l\u1edbp m\u1ee1 b\u00f4i tr\u01a1n ch\u00e2n kh\u00f4ng (vacuum grease) d\u1ea1ng m\u00e0ng m\u1ecfng nh\u1eb1m t\u0103ng \u0111\u1ed9 b\u1ec1n v\u00e0 tu\u1ed5i th\u1ecd. B\u00ean ngo\u00e0i, c\u1ee5m c\u1ed5ng \u0111\u01b0\u1ee3c che b\u1eb1ng n\u1eafp composite m\u1ec1m, linh ho\u1ea1t \u0111\u1ec3 h\u1ea1n ch\u1ebf b\u1ee5i b\u1ea9n v\u00e0 c\u00e1c t\u00e1c nh\u00e2n g\u00e2y nhi\u1ec5m b\u1ea9n ti\u1ebfp x\u00fac, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn O-ring.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Van_de_xuat_phat_tu_viec_nap_nito_long_qua_day\"><\/span><strong>V\u1ea5n \u0111\u1ec1 xu\u1ea5t ph\u00e1t t\u1eeb vi\u1ec7c n\u1ea1p nit\u01a1 l\u1ecfng qu\u00e1 \u0111\u1ea7y<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>V\u1ea5n \u0111\u1ec1 n\u00e0y th\u01b0\u1eddng x\u1ea3y ra khi nit\u01a1 l\u1ecfng (LN\u2082) ti\u1ebfp x\u00fac v\u1edbi n\u00fat b\u1ecbt c\u1ed5ng h\u00fat ch\u00e2n kh\u00f4ng (pumpout plug) ho\u1eb7c th\u00e2n c\u1ed5ng (pumpout body) trong m\u1ed9t kho\u1ea3ng th\u1eddi gian d\u00e0i. Nhi\u1ec7t \u0111\u1ed9 c\u1ef1c th\u1ea5p l\u00e0m c\u00e1c v\u00f2ng \u0111\u1ec7m O-ring co l\u1ea1i v\u00e0 tr\u1edf n\u00ean c\u1ee9ng, t\u1eeb \u0111\u00f3 c\u00f3 th\u1ec3 khi\u1ebfn O-ring t\u1ea1m th\u1eddi m\u1ea5t kh\u1ea3 n\u0103ng l\u00e0m k\u00edn. Do h\u1ea7u h\u1ebft c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ec1u s\u1eed d\u1ee5ng thi\u1ebft k\u1ebf O-ring t\u01b0\u01a1ng t\u1ef1, t\u00ecnh hu\u1ed1ng b\u1ea5t l\u1ee3i n\u00e0y c\u00f3 th\u1ec3 x\u1ea3y ra v\u1edbi b\u1ea5t k\u1ef3 b\u00ecnh Dewar nit\u01a1 l\u1ecfng n\u00e0o. N\u1eafp nh\u1ef1a kh\u00f4ng th\u1ec3 ng\u0103n ho\u00e0n to\u00e0n hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y, nh\u01b0ng c\u00f3 th\u1ec3 k\u00e9o d\u00e0i th\u1eddi gian tr\u01b0\u1edbc khi s\u1ef1 c\u1ed1 b\u1eaft \u0111\u1ea7u ph\u00e1t sinh. V\u00ec v\u1eady, vi\u1ec7c duy tr\u00ec t\u00ecnh tr\u1ea1ng c\u1ed5ng h\u00fat ch\u00e2n kh\u00f4ng lu\u00f4n \u0111\u01b0\u1ee3c che ph\u1ee7 l\u00e0 h\u1ebft s\u1ee9c quan tr\u1ecdng. N\u1ebfu nit\u01a1 l\u1ecfng b\u1ecb \u0111\u1ed5 l\u00ean n\u1eafp nh\u1ef1a, n\u1eafp c\u00f3 th\u1ec3 b\u1ecb n\u1ee9t (\u0111\u00e2y c\u0169ng l\u00e0 d\u1ea5u hi\u1ec7u c\u1ee7a thao t\u00e1c n\u1ea1p kh\u00f4ng \u0111\u00fang); khi \u0111\u00f3 c\u1ea7n thay n\u1eafp m\u1edbi cho c\u1ed5ng h\u00fat ch\u00e2n kh\u00f4ng c\u00e0ng s\u1edbm c\u00e0ng t\u1ed1t. C\u00e1c n\u1eafp n\u00e0y c\u00f3 chi ph\u00ed th\u1ea5p v\u00e0 MVE s\u1ebd cung c\u1ea5p n\u1eafp thay th\u1ebf khi c\u1ea7n.<\/p>\n<p>Nhi\u1ec1u n\u0103m tr\u01b0\u1edbc, MVE t\u1eebng s\u1eed d\u1ee5ng n\u1eafp kim lo\u1ea1i g\u1eafn gi\u1eef v\u00e0o th\u00e2n c\u1ed5ng h\u00fat ch\u00e2n kh\u00f4ng. M\u1eb7c d\u00f9 thi\u1ebft k\u1ebf n\u00e0y gi\u00fap ng\u0103n b\u1ee5i b\u1ea9n t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn O-ring, nh\u01b0ng l\u1ea1i kh\u00f4ng \u0111\u1ea3m b\u1ea3o x\u1ea3 \u00e1p \u0111\u1ea7y \u0111\u1ee7 v\u00e0 do \u0111\u00f3 tr\u1edf th\u00e0nh m\u1ed9t v\u1ea5n \u0111\u1ec1 v\u1ec1 tr\u00e1ch nhi\u1ec7m\/an to\u00e0n. Trong m\u1ed9t th\u1eddi gian ng\u1eafn, ch\u00fang t\u00f4i chuy\u1ec3n sang d\u00f9ng n\u1eafp nh\u1ef1a c\u1ee9ng c\u00f3 kh\u1ea3 n\u0103ng x\u1ea3 \u00e1p, nh\u01b0ng l\u1ea1i kh\u00f4ng b\u1ea3o v\u1ec7 n\u00fat kh\u1ecfi b\u1ee5i b\u1ea9n. Thi\u1ebft k\u1ebf hi\u1ec7n \u0111ang \u00e1p d\u1ee5ng \u0111\u01b0\u1ee3c xem l\u00e0 ph\u01b0\u01a1ng \u00e1n an to\u00e0n v\u00e0 thu\u1eadn ti\u1ec7n nh\u1ea5t \u0111\u1ec3 b\u1ea3o v\u1ec7 O-ring m\u00e0 kh\u00f4ng l\u00e0m t\u0103ng chi ph\u00ed c\u1ee7a b\u00ecnh Dewar nit\u01a1 l\u1ecfng. D\u00f9 ki\u1ec3u d\u00e1ng c\u00f3 th\u1ec3 kh\u00e1c nhau t\u00f9y nh\u00e0 s\u1ea3n xu\u1ea5t, \u0111\u00e2y d\u01b0\u1eddng nh\u01b0 l\u00e0 thi\u1ebft k\u1ebf ph\u1ed5 bi\u1ebfn \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i trong ng\u00e0nh.<\/p>\n<p>Bi\u1ec7n ph\u00e1p an to\u00e0n trong qu\u00e1 tr\u00ecnh n\u1ea1p n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c b\u00ecnh v\u1eadn chuy\u1ec3n d\u1ea1ng h\u01a1i nit\u01a1 l\u1ecfng (liquid nitrogen vapor shippers), n\u01a1i \u201cd\u01b0 \u0111\u1ecba\u201d \u0111\u1ec3 kh\u1eafc ph\u1ee5c khi x\u1ea3y ra s\u1ef1 c\u1ed1 th\u01b0\u1eddng th\u1ea5p h\u01a1n. C\u00e1c vapor shipper th\u01b0\u1eddng \u1edf tr\u1ea1ng th\u00e1i \u1ea5m khi c\u1ea7n n\u1ea1p (charging) LN\u2082. Do th\u1ec3 t\u00edch khoang trong nh\u1ecf h\u01a1n v\u00e0 c\u00f3 th\u00eam l\u1edbp l\u00f3t c\u1ea7n \u0111\u01b0\u1ee3c l\u00e0m l\u1ea1nh, hi\u1ec7n t\u01b0\u1ee3ng b\u1ed1c h\u01a1i t\u1ee9c th\u1eddi ban \u0111\u1ea7u (initial flash-off) s\u1ebd l\u1edbn h\u01a1n so v\u1edbi khi b\u00ecnh Dewar \u0111\u00e3 \u1edf tr\u1ea1ng th\u00e1i l\u1ea1nh. V\u00ec l\u00fd do \u0111\u00f3, vapor shipper th\u01b0\u1eddng c\u1ea7n \u0111\u01b0\u1ee3c n\u1ea1p b\u1ed5 sung trong su\u1ed1t chu k\u1ef3 n\u1ea1p. H\u01b0\u1edbng d\u1eabn n\u1ea1p \u0111\u00fang quy tr\u00ecnh \u0111\u01b0\u1ee3c n\u00eau trong t\u00e0i li\u1ec7u h\u01b0\u1edbng d\u1eabn \u0111i k\u00e8m m\u1ed7i b\u00ecnh Dewar nit\u01a1 l\u1ecfng MVE, \u00e1p d\u1ee5ng cho c\u1ea3 d\u00f2ng b\u00ecnh ch\u1ee9a d\u1ea1ng l\u1ecfng v\u00e0 d\u00f2ng b\u00ecnh v\u1eadn chuy\u1ec3n d\u1ea1ng h\u01a1i.<\/p>\n<p>Biogroup l\u00e0 nh\u00e0 ph\u00e2n ph\u1ed1i ch\u00ednh th\u1ee9c c\u1ee7a MVE t\u1ea1i Vi\u1ec7t Nam. B\u00ean c\u1ea1nh vi\u1ec7c cung c\u1ea5p thi\u1ebft b\u1ecb, ch\u00fang t\u00f4i c\u00f2n h\u1ed7 tr\u1ee3 d\u1ecbch v\u1ee5 b\u1ea3o d\u01b0\u1ee1ng b\u00ecnh nit\u01a1 l\u1ecfng l\u01b0u tr\u1eef m\u1eabu, \u0111\u1ea3m b\u1ea3o thi\u1ebft lu\u00f4n v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh.<\/p>\n<p><em><strong>Xem th\u00eam:<\/strong> <a href=\"https:\/\/biogroupvietnam.com\/vi\/dich-vu\/huong-dan-van-hanh-binh-tru-lanh-phoi-tinh-trung-mve-xc-47\/\">H\u01b0\u1edbng d\u1eabn v\u1eadn h\u00e0nh b\u00ecnh tr\u1eef l\u1ea1nh ph\u00f4i, tinh tr\u00f9ng MVE XC 47<\/a><\/em><\/p>\n<p><strong>NGU\u1ed2N THAM KH\u1ea2O<\/strong><\/p>\n<p><em>1. <a href=\"https:\/\/princetoncryo.blogspot.com\/2008\/11\/dangers-of-overfilling-your-cryogenic.html\">Dangers of overfilling your cryogenic (Part 1)<\/a><\/em><\/p>\n<p><em>2. <a href=\"https:\/\/princetoncryo.blogspot.com\/2008\/11\/dangers-of-overfilling-your-cryogenic_18.html\">Dangers of overfilling your cryogenic (Part 2)<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0110\u00f4i khi, kh\u00e1ch h\u00e0ng b\u00e0y t\u1ecf lo ng\u1ea1i khi m\u1ed9t b\u00ecnh Dewar nit\u01a1 l\u1ecfng (LN\u2082) b\u1ecb m\u1ea5t ch\u00e2n kh\u00f4ng \u0111\u1ed9t ng\u1ed9t. C\u00e1c b\u00ecnh n\u00e0y \u0111\u01b0\u1ee3c g\u1eedi tr\u1ea3 v\u1ec1 v\u00e0 \u0111\u01b0\u1ee3c ki\u1ec3m tra ngay l\u1eadp t\u1ee9c, sau \u0111\u00f3 ti\u1ebfn h\u00e0nh h\u00fat ch\u00e2n kh\u00f4ng l\u1ea1i v\u00e0 th\u1eed nghi\u1ec7m v\u1edbi nit\u01a1 l\u1ecfng (LN\u2082). K\u1ebft qu\u1ea3 cho th\u1ea5y nguy\u00ean<\/p>\n<div class=\"klb-readmore post-buttons\"><a class=\"button rounded primary\" href=\"https:\/\/biogroupvietnam.com\/vi\/blog\/nguy-co-khi-nap-nito-long-vao-binh-luu-tru-cryogenic-dewar-qua-day\/\">Read More <i class=\"klbth-icon-right-arrow\"><\/i><\/a><\/div>\n","protected":false},"author":1,"featured_media":5689,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4223","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Nguy c\u01a1 khi n\u1ea1p nit\u01a1 l\u1ecfng v\u00e0o b\u00ecnh l\u01b0u tr\u1eef Cryogenic Dewar qu\u00e1 \u0111\u1ea7y<\/title>\n<meta name=\"description\" content=\"Quy tr\u00ecnh 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