{"id":2314,"date":"2022-08-11T03:34:10","date_gmt":"2022-08-11T03:34:10","guid":{"rendered":"https:\/\/xintaivalves.com\/?p=2314"},"modified":"2024-09-26T15:35:55","modified_gmt":"2024-09-26T07:35:55","slug":"how-does-safety-valve-work","status":"publish","type":"post","link":"https:\/\/www.xintaivalves.com\/vi\/knowledge-center\/how-does-safety-valve-work\/","title":{"rendered":"Van an to\u00e0n ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 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=\"Chuy\u1ec3n \u0111\u1ed5i m\u1ee5c l\u1ee5c\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Chuy\u1ec3n \u0111\u1ed5i<\/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 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.xintaivalves.com\/vi\/knowledge-center\/how-does-safety-valve-work\/#What_Is_a_Safety_Valve\" >Van an to\u00e0n l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.xintaivalves.com\/vi\/knowledge-center\/how-does-safety-valve-work\/#How_Does_a_Safety_Valve_Work\" >Van an to\u00e0n ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">\u00dd t\u01b0\u1edfng c\u01a1 b\u1ea3n l\u00e0 van s\u1ebd \u0111\u00f3ng l\u1ea1i khi \u00e1p su\u1ea5t b\u00ean trong b\u00ecnh \u0111\u1ea1t \u0111\u1ebfn m\u1ed9t m\u1ee9c nh\u1ea5t \u0111\u1ecbnh. Khi \u00e1p su\u1ea5t gi\u1ea3m, l\u1ef1c l\u00f2 xo Fp s\u1ebd nh\u1ecf l\u1ea1i. Van v\u1eabn m\u1edf trong khi d\u00f2ng ch\u1ea3y t\u00e1c \u0111\u1ed9ng l\u00ean v\u00f9ng \u0111\u0129a m\u1edf r\u1ed9ng. Khi \u00e1p su\u1ea5t \u0111\u1ea1t \u0111\u1ebfn m\u1ee9c an to\u00e0n, van an to\u00e0n s\u1ebd \u0111\u00f3ng l\u1ea1i khi \u0111\u0129a ch\u1ea1m v\u00e0o v\u00f2i phun. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u1ea3i th\u00edch ho\u1ea1t \u0111\u1ed9ng c\u01a1 b\u1ea3n c\u1ee7a van an to\u00e0n v\u00e0 m\u1ee5c \u0111\u00edch c\u1ee7a thi\u1ebft b\u1ecb n\u00e0y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed8T<a href=\"https:\/\/www.xintaivalves.com\/vi\/product\/safety-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong><em> <\/em><\/strong><em><strong>van an to\u00e0n<\/strong><\/em><\/a><strong><a href=\"https:\/\/www.xintaivalves.com\/vi\/product\/safety-valve\/\"><em> <\/em><\/a><\/strong>m\u1edf ra khi n\u00f3 \u0111\u1ea1t \u0111\u1ebfn m\u1ed9t \u00e1p su\u1ea5t quy \u0111\u1ecbnh. \u0110\u0129a s\u1ebd nh\u1ea5c kh\u1ecfi ch\u1ed7 ng\u1ed3i c\u1ee7a n\u00f3 v\u00e0 ch\u1ea3y n\u1ebfu \u00e1p su\u1ea5t v\u01b0\u1ee3t qu\u00e1 \u00e1p su\u1ea5t \u0111\u00e3 \u0111\u1eb7t. L\u1ef1c t\u00e1c d\u1ee5ng \u0111\u1ec3 m\u1edf van ph\u1ee5 thu\u1ed9c v\u00e0o \u00e1p su\u1ea5t c\u00e0i \u0111\u1eb7t v\u00e0 ti\u00eau chu\u1ea9n cho \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3. Van s\u1ebd m\u1edf v\u00e0 \u0111\u00f3ng nhanh ch\u00f3ng khi \u00e1p su\u1ea5t \u0111\u1ea1t \u0111\u1ebfn \u00e1p su\u1ea5t \u0111\u1ecbnh tr\u01b0\u1edbc. Tuy nhi\u00ean, \u0111i\u1ec1u quan tr\u1ecdng c\u1ea7n l\u01b0u \u00fd l\u00e0 c\u01a1 ch\u1ebf n\u00e0y ch\u1ec9 hi\u1ec7u qu\u1ea3 n\u1ebfu \u00e1p su\u1ea5t c\u00e0i \u0111\u1eb7t l\u1edbn h\u01a1n \u00e1p su\u1ea5t v\u1eadn h\u00e0nh.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\"><span class=\"ez-toc-section\" id=\"What_Is_a_Safety_Valve\"><\/span><strong>Van an to\u00e0n l\u00e0 g\u00ec?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full is-resized\"><a href=\"https:\/\/www.xintaivalves.com\/vi\/products\/high-performance-steam-safety-valve\/\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/xintaivalves.com\/wp-content\/uploads\/2022\/11\/HIGH-PERFORMANCE-STEAM-SAFETY-VALVE.jpg\" alt=\"\" class=\"wp-image-3619\" style=\"width:482px;height:482px\" width=\"482\" height=\"482\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2022\/11\/HIGH-PERFORMANCE-STEAM-SAFETY-VALVE.jpg 640w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2022\/11\/HIGH-PERFORMANCE-STEAM-SAFETY-VALVE-300x300.jpg 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2022\/11\/HIGH-PERFORMANCE-STEAM-SAFETY-VALVE-150x150.jpg 150w\" sizes=\"(max-width: 482px) 100vw, 482px\" \/><\/a><figcaption class=\"wp-element-caption\">VAN AN TO\u00c0N H\u01a0I HI\u1ec6U SU\u1ea4T CAO<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Van an to\u00e0n l\u00e0 g\u00ec? Van an to\u00e0n l\u00e0 th\u00e0nh ph\u1ea7n thi\u1ebft y\u1ebfu trong c\u00e1c h\u1ec7 th\u1ed1ng v\u00e0 thi\u1ebft b\u1ecb \u0111\u00f2i h\u1ecfi kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t. V\u00ed d\u1ee5 bao g\u1ed3m n\u1ed3i h\u01a1i, m\u00e1y n\u01b0\u1edbc n\u00f3ng v\u00e0 h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh. Van an to\u00e0n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 m\u1edf khi m\u1ee9c \u00e1p su\u1ea5t ho\u1eb7c nhi\u1ec7t \u0111\u1ed9 \u0111e d\u1ecda c\u1ea5u tr\u00fac v\u1eadt l\u00fd c\u1ee7a thi\u1ebft b\u1ecb. Ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t trong nh\u1eefng th\u1eddi \u0111i\u1ec3m quan tr\u1ecdng \u0111\u1ea7u ti\u00ean khi kh\u1edfi \u0111\u1ed9ng h\u1ec7 th\u1ed1ng ho\u1eb7c khi h\u1ec7 th\u1ed1ng d\u1eebng l\u1ea1i trong th\u1eddi gian d\u00e0i. Van an to\u00e0n c\u0169ng ng\u0103n ch\u1eb7n h\u1ec7 th\u1ed1ng ph\u00e1t n\u1ed5.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Van an to\u00e0n c\u1ea7n thi\u1ebft cho nhi\u1ec1u \u1ee9ng d\u1ee5ng, bao g\u1ed3m h\u1ec7 th\u1ed1ng s\u01b0\u1edfi \u1ea5m, n\u1ed3i h\u01a1i v\u00e0 h\u1ec7 th\u1ed1ng \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed. Ch\u00fang b\u1ea3o v\u1ec7 con ng\u01b0\u1eddi v\u00e0 t\u00e0i s\u1ea3n kh\u1ecfi t\u00e1c \u0111\u1ed9ng c\u1ee7a s\u1ef1 c\u1ed1 h\u1ec7 th\u1ed1ng b\u1eb1ng c\u00e1ch cung c\u1ea5p th\u00eam m\u1ed9t ph\u01b0\u01a1ng ti\u1ec7n \u0111\u1ec3 gi\u1ea3m \u00e1p su\u1ea5t h\u1ec7 th\u1ed1ng tr\u01b0\u1edbc khi n\u00f3 d\u1eabn \u0111\u1ebfn s\u1ef1 c\u1ed1 ho\u00e0n to\u00e0n. Van an to\u00e0n r\u1ea5t c\u1ea7n thi\u1ebft trong b\u1ea5t k\u1ef3 m\u00f4i tr\u01b0\u1eddng n\u00e0o c\u00f3 \u00e1p su\u1ea5t li\u00ean t\u1ee5c t\u0103ng v\u00e0 th\u1eadm ch\u00ed c\u00f3 th\u1ec3 ng\u0103n ng\u1eeba c\u00e1c v\u1ee5 n\u1ed5 ho\u1eb7c h\u1ecfa ho\u1ea1n. Tuy nhi\u00ean, ch\u00fang kh\u00f4ng d\u00e0nh cho m\u1ecdi t\u00ecnh hu\u1ed1ng. Van an to\u00e0n ch\u1ec9 hi\u1ec7u qu\u1ea3 khi \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t \u0111\u00fang c\u00e1ch v\u00e0 ch\u00fang kh\u00f4ng ph\u1ed5 bi\u1ebfn nh\u01b0 b\u1ea1n ngh\u0129.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\"><span class=\"ez-toc-section\" id=\"How_Does_a_Safety_Valve_Work\"><\/span><strong>Van an to\u00e0n ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n t\u1eebng th\u1eafc m\u1eafc van an to\u00e0n ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o th\u00ec b\u1ea1n \u0111\u00e3 \u0111\u1ebfn \u0111\u00fang n\u01a1i. \u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 quy tr\u00ecnh n\u00e0y, b\u1ea1n c\u1ea7n hi\u1ec3u ho\u1ea1t \u0111\u1ed9ng c\u01a1 b\u1ea3n c\u1ee7a n\u00f3. Van an to\u00e0n l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb c\u01a1 kh\u00ed \u0111\u00f3ng m\u1edf khi \u00e1p su\u1ea5t trong h\u1ec7 th\u1ed1ng \u0111\u1ea1t \u0111\u1ebfn m\u1ee9c \u0111\u1ecbnh tr\u01b0\u1edbc. \u0110i\u1ec1u n\u00e0y kh\u00e1c v\u1edbi van x\u1ea3 c\u00f3 v\u1ecb tr\u00ed n\u1eeda m\u1edf v\u00e0 s\u1ebd ch\u1ec9 \u0111\u00f3ng khi \u00e1p su\u1ea5t gi\u1ea3m xu\u1ed1ng d\u01b0\u1edbi m\u1ee9c x\u00e1c \u0111\u1ecbnh tr\u01b0\u1edbc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Van an to\u00e0n m\u1edf ho\u00e0n to\u00e0n trong th\u1eddi gian ng\u1eafn \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00f4ng su\u1ea5t x\u1ea3 t\u1ed1i \u0111a. N\u00f3 th\u1ef1c hi\u1ec7n \u0111i\u1ec1u n\u00e0y b\u1eb1ng c\u00e1ch n\u00e2ng m\u1ed9t \u0111\u0129a c\u00f3 \u0111\u01b0\u1eddng k\u00ednh l\u1edbn. L\u1ef1c l\u00f2 xo c\u1ee7a \u0111\u0129a v\u00e0 \u00e1p su\u1ea5t trong b\u00ecnh t\u00e1c \u0111\u1ed9ng l\u1eabn nhau v\u00e0 s\u1ef1 c\u00e2n b\u1eb1ng ng\u0103n kh\u00f4ng cho \u0111\u0129a r\u01a1i xu\u1ed1ng ch\u00e2n van. \u0110i\u1ec1u n\u00e0y s\u1ebd m\u1edf van khi n\u00e2ng h\u1ebft c\u1ee1 v\u00e0 r\u00f2 r\u1ec9 r\u00f5 r\u00e0ng khi \u00e1p su\u1ea5t b\u00ean trong h\u1ec7 th\u1ed1ng t\u0103ng l\u00ean. Khi \u0111i\u1ec1u n\u00e0y x\u1ea3y ra, van s\u1ebd t\u1ef1 \u0111\u1ed9ng \u0111\u00f3ng l\u1ea1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.xintaivalves.com\/vi\/blog\/the-difference-between-relief-valve-and-safety-valve\/\"><strong>Van gi\u1ea3m \u00e1p v\u00e0 van an to\u00e0n<\/strong> <\/a>l\u00e0m vi\u1ec7c kh\u00e1c nhau. Van gi\u1ea3m \u00e1p \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 gi\u1ea3m \u00e1p su\u1ea5t v\u00e0 m\u1edf t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi s\u1ef1 gia t\u0103ng \u00e1p su\u1ea5t. M\u1eb7t kh\u00e1c, van an to\u00e0n s\u1ebd m\u1edf ngay l\u1eadp t\u1ee9c \u0111\u1ec3 gi\u1ea3m \u00e1p l\u1ef1c trong tr\u01b0\u1eddng h\u1ee3p kh\u1ea9n c\u1ea5p. <a href=\"https:\/\/www.xintaivalves.com\/vi\/blog\/when-should-safety-valve-be-used\/\"><strong>N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng<\/strong><\/a> k\u1ebft h\u1ee3p v\u1edbi nhau, do \u0111\u00f3 hai van c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c ch\u1ee9c n\u0103ng ri\u00eang bi\u1ec7t c\u1ee7a ch\u00fang. Van gi\u1ea3m \u00e1p y\u00eau c\u1ea7u t\u00edn hi\u1ec7u \u0111i\u1ec1u khi\u1ec3n c\u1ee7a ng\u01b0\u1eddi v\u1eadn h\u00e0nh trong khi van an to\u00e0n th\u00ec kh\u00f4ng. <\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/youtu.be\/b2KQVkdAGzQ?si=ucWBbEPMUN4LLHMP\n<\/div><\/figure>","protected":false},"excerpt":{"rendered":"<p>The basic idea is that the valve will close when the pressure inside the vessel reaches a certain level. As the pressure decreases, the spring force Fp will become smaller. The valve remains open while the flow acts on the enlarged disc area. Once the pressure reaches the safe level, the safety valve will close [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1546,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[193,194],"class_list":["post-2314","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-safety-valve","tag-valve-manufacturer"],"_links":{"self":[{"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/posts\/2314","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/comments?post=2314"}],"version-history":[{"count":3,"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/posts\/2314\/revisions"}],"predecessor-version":[{"id":7637,"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/posts\/2314\/revisions\/7637"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/media\/1546"}],"wp:attachment":[{"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/media?parent=2314"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/categories?post=2314"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/tags?post=2314"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}