{"id":704676,"date":"2024-07-26T13:45:08","date_gmt":"2024-07-26T12:45:08","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=704676"},"modified":"2024-07-26T13:45:08","modified_gmt":"2024-07-26T12:45:08","slug":"van-giam-ap-suat-bao-ve-an-toan-chong-qua-ap-2","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/van-giam-ap-suat-bao-ve-an-toan-chong-qua-ap-2\/","title":{"rendered":"Van Gi\u1ea3m \u00c1p Su\u1ea5t | B\u1ea3o V\u1ec7 An To\u00e0n &#038; Ch\u1ed1ng Qu\u00e1 \u00c1p"},"content":{"rendered":"<p class=\"sidekick\">Van Gi\u1ea3m \u00c1p Su\u1ea5t: B\u1ea3o v\u1ec7 an to\u00e0n h\u1ec7 th\u1ed1ng, ng\u0103n ch\u1eb7n qu\u00e1 \u00e1p v\u00e0 h\u1ecfng h\u00f3c thi\u1ebft b\u1ecb trong nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 d\u00e2n d\u1ee5ng &#8211; t\u00ecm hi\u1ec3u ngay!<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/van_giam_ap_suat_bao_ve_an_toan_chong_qua_ap.png\" alt=\"Van Gi\u1ea3m \u00c1p Su\u1ea5t | B\u1ea3o V\u1ec7 An To\u00e0n &#038; Ch\u1ed1ng Qu\u00e1 \u00c1p\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>Van Gi\u1ea3m \u00c1p Su\u1ea5t: B\u1ea3o V\u1ec7 An To\u00e0n &#038; Ch\u1ed1ng Qu\u00e1 \u00c1p<\/h2>\n<p>Van gi\u1ea3m \u00e1p su\u1ea5t l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n quan tr\u1ecdng trong h\u1ec7 th\u1ed1ng k\u1ef9 thu\u1eadt, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i \u0111\u1ec3 ki\u1ec3m so\u00e1t v\u00e0 duy tr\u00ec \u00e1p su\u1ea5t \u1ed5n \u0111\u1ecbnh trong c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng v\u00e0 thi\u1ebft b\u1ecb. M\u1ee5c ti\u00eau ch\u00ednh c\u1ee7a van gi\u1ea3m \u00e1p su\u1ea5t l\u00e0 b\u1ea3o v\u1ec7 an to\u00e0n cho con ng\u01b0\u1eddi v\u00e0 thi\u1ebft b\u1ecb, ng\u0103n ng\u1eeba t\u00ecnh tr\u1ea1ng qu\u00e1 \u00e1p c\u00f3 th\u1ec3 g\u00e2y h\u01b0 h\u1ecfng ho\u1eb7c s\u1ef1 c\u1ed1.<\/p>\n<h3>Nguy\u00ean l\u00fd Ho\u1ea1t \u0110\u1ed9ng<\/h3>\n<p>Van gi\u1ea3m \u00e1p su\u1ea5t ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean t\u1eafc c\u00e2n b\u1eb1ng l\u1ef1c. Khi \u00e1p su\u1ea5t \u0111\u1ea7u v\u00e0o l\u1edbn h\u01a1n \u00e1p su\u1ea5t \u0111\u1ea7u ra, van s\u1ebd t\u1ef1 \u0111\u1ed9ng \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 gi\u1ea3m \u00e1p su\u1ea5t. M\u1ed9t l\u00f2 xo v\u00e0 m\u1ed9t m\u00e0ng van th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 duy tr\u00ec s\u1ef1 c\u00e2n b\u1eb1ng n\u00e0y.<\/p>\n<h4>C\u00e1c Th\u00e0nh Ph\u1ea7n Ch\u00ednh<\/h4>\n<ul>\n<li><strong>L\u00f2 xo (Spring):<\/strong> \u0110i\u1ec1u ch\u1ec9nh \u00e1p su\u1ea5t \u0111\u1ea7u ra b\u1eb1ng c\u00e1ch t\u01b0\u01a1ng t\u00e1c v\u1edbi m\u00e0ng van.<\/li>\n<li><strong>M\u00e0ng van (Diaphragm):<\/strong> Ch\u1ecbu t\u00e1c \u0111\u1ed9ng c\u1ee7a \u00e1p su\u1ea5t \u0111\u1ea7u v\u00e0o v\u00e0 l\u1ef1c t\u1eeb l\u00f2 xo \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh v\u1ecb tr\u00ed c\u1ee7a van.<\/li>\n<li><strong>Th\u00e2n van (Valve body):<\/strong> Ch\u1ee9a c\u00e1c th\u00e0nh ph\u1ea7n v\u00e0 d\u00f2ng ch\u1ea3y ch\u1ea5t l\u1ecfng ho\u1eb7c kh\u00ed qua van.<\/li>\n<\/ul>\n<h2>\u01afu \u0110i\u1ec3m<\/h2>\n<h3>B\u1ea3o V\u1ec7 An To\u00e0n<\/h3>\n<p>Khi \u00e1p su\u1ea5t trong h\u1ec7 th\u1ed1ng v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n cho ph\u00e9p, van gi\u1ea3m \u00e1p su\u1ea5t s\u1ebd gi\u00fap gi\u1ea3m \u00e1p su\u1ea5t xu\u1ed1ng m\u1ee9c an to\u00e0n, ng\u0103n ch\u1eb7n nguy c\u01a1 n\u1ed5 v\u00e0 h\u01b0 h\u1ecfng thi\u1ebft b\u1ecb. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u01b0 d\u1ea7u kh\u00ed, h\u00f3a ch\u1ea5t, v\u00e0 nhi\u1ec7t \u0111i\u1ec7n.<\/p>\n<h3>T\u1ed1i \u01afu H\u00f3a Hi\u1ec7u Su\u1ea5t<\/h3>\n<p>Vi\u1ec7c duy tr\u00ec m\u1ee9c \u00e1p su\u1ea5t \u1ed5n \u0111\u1ecbnh gi\u00fap h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 h\u01a1n, gi\u1ea3m thi\u1ec3u ti\u00eau hao n\u0103ng l\u01b0\u1ee3ng v\u00e0 t\u0103ng tu\u1ed5i th\u1ecd c\u1ee7a thi\u1ebft b\u1ecb. \u0110i\u1ec1u n\u00e0y kh\u00f4ng ch\u1ec9 ti\u1ebft ki\u1ec7m chi ph\u00ed m\u00e0 c\u00f2n gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn m\u00f4i tr\u01b0\u1eddng.<\/p>\n<h2>L\u00fd Thuy\u1ebft &#038; C\u00f4ng Th\u1ee9c<\/h2>\n<h3>Ph\u01b0\u01a1ng Tr\u00ecnh Bernoulli<\/h3>\n<p>M\u1ed9t c\u00f4ng c\u1ee5 quan tr\u1ecdng gi\u00fap hi\u1ec3u c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a van gi\u1ea3m \u00e1p su\u1ea5t l\u00e0 ph\u01b0\u01a1ng tr\u00ecnh Bernoulli:<\/p>\n<p>\n  <em><br \/>\n    \\( P + \\frac{1}{2} \\rho v^2 + \\rho gh = \\text{const} \\)<br \/>\n  <\/em>\n<\/p>\n<p>Trong ph\u01b0\u01a1ng tr\u00ecnh n\u00e0y:<\/p>\n<ul>\n<li><em>P<\/em>: \u00c1p su\u1ea5t t\u0129nh (Pa)<\/li>\n<li><em>\\( \\rho \\)<\/em>: M\u1eadt \u0111\u1ed9 ch\u1ea5t l\u01b0u (kg\/m<sup>3<\/sup>)<\/li>\n<li><em>v<\/em>: V\u1eadn t\u1ed1c d\u00f2ng ch\u1ea3y (m\/s)<\/li>\n<li><em>g<\/em>: Gia t\u1ed1c tr\u1ecdng tr\u01b0\u1eddng (9.81 m\/s<sup>2<\/sup>)<\/li>\n<li><em>h<\/em>: \u0110\u1ed9 cao (m)<\/li>\n<\/ul>\n<p>Ph\u01b0\u01a1ng tr\u00ecnh n\u00e0y gi\u00fap x\u00e1c \u0111\u1ecbnh m\u1ed1i quan h\u1ec7 gi\u1eefa \u00e1p su\u1ea5t v\u00e0 v\u1eadn t\u1ed1c c\u1ee7a ch\u1ea5t l\u1ecfng ho\u1eb7c kh\u00ed \u0111i qua van.<\/p>\n<h2>\u1ee8ng D\u1ee5ng Th\u1ef1c Ti\u1ec5n<\/h2>\n<h3>Ng\u00e0nh C\u00f4ng Nghi\u1ec7p D\u1ea7u Kh\u00ed<\/h3>\n<p>Trong ng\u00e0nh d\u1ea7u kh\u00ed, van gi\u1ea3m \u00e1p su\u1ea5t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n trong c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng ch\u1edf d\u1ea7u v\u00e0 kh\u00ed. \u00c1p su\u1ea5t d\u01b0 th\u1eeba c\u00f3 th\u1ec3 g\u00e2y n\u1ed5, l\u00e0m h\u01b0 h\u1ecfng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng v\u00e0 g\u00e2y nguy hi\u1ec3m cho nh\u00e2n vi\u00ean.<\/p>\n<h3>Ng\u00e0nh C\u00f4ng Nghi\u1ec7p H\u00f3a Ch\u1ea5t<\/h3>\n<p>Trong nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t, van gi\u1ea3m \u00e1p su\u1ea5t gi\u00fap ki\u1ec3m so\u00e1t ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc b\u1eb1ng c\u00e1ch duy tr\u00ec \u00e1p su\u1ea5t trong c\u00e1c b\u00ecnh ch\u1ee9a v\u00e0 \u0111\u01b0\u1eddng \u1ed1ng \u1edf m\u1ee9c an to\u00e0n.<\/p>\n<h2>K\u1ebft Lu\u1eadn<\/h2>\n<p>Van gi\u1ea3m \u00e1p su\u1ea5t \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c b\u1ea3o v\u1ec7 an to\u00e0n v\u00e0 ch\u1ed1ng qu\u00e1 \u00e1p trong h\u1ec7 th\u1ed1ng k\u1ef9 thu\u1eadt. Hi\u1ec3u r\u00f5 nguy\u00ean l\u00fd v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a van gi\u1ea3m \u00e1p su\u1ea5t s\u1ebd gi\u00fap b\u1ea1n duy tr\u00ec h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 v\u00e0 an to\u00e0n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Van Gi\u1ea3m \u00c1p Su\u1ea5t: B\u1ea3o v\u1ec7 an to\u00e0n h\u1ec7 th\u1ed1ng, ng\u0103n ch\u1eb7n qu\u00e1 \u00e1p v\u00e0 h\u1ecfng h\u00f3c thi\u1ebft b\u1ecb trong nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 d\u00e2n d\u1ee5ng &#8211; t\u00ecm hi\u1ec3u ngay!<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[132],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Van Gi\u1ea3m \u00c1p Su\u1ea5t | B\u1ea3o V\u1ec7 An To\u00e0n &amp; Ch\u1ed1ng Qu\u00e1 \u00c1p<\/title>\n<meta name=\"description\" content=\"Van Gi\u1ea3m \u00c1p Su\u1ea5t: B\u1ea3o v\u1ec7 an to\u00e0n h\u1ec7 th\u1ed1ng, ng\u0103n ch\u1eb7n qu\u00e1 \u00e1p v\u00e0 h\u1ecfng h\u00f3c thi\u1ebft b\u1ecb trong nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 d\u00e2n d\u1ee5ng - t\u00ecm hi\u1ec3u ngay!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.thermal-engineering.org\/vi\/van-giam-ap-suat-bao-ve-an-toan-chong-qua-ap-2\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Van Gi\u1ea3m \u00c1p Su\u1ea5t | B\u1ea3o V\u1ec7 An To\u00e0n &amp; 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