{"id":676188,"date":"2024-09-18T16:41:39","date_gmt":"2024-09-18T15:41:39","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=676188"},"modified":"2024-09-18T16:41:39","modified_gmt":"2024-09-18T15:41:39","slug":"cach-hoat-dong-cua-bo-bao-ve-qua-nhiet","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/cach-hoat-dong-cua-bo-bao-ve-qua-nhiet\/","title":{"rendered":"C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 b\u1ea3o v\u1ec7 qu\u00e1 nhi\u1ec7t"},"content":{"rendered":"<p class=\"sidekick\">B\u1ed9 b\u1ea3o v\u1ec7 qu\u00e1 nhi\u1ec7t: C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb kh\u1ecfi h\u01b0 h\u1ecfng nhi\u1ec7t b\u1eb1ng c\u00e1ch t\u1ef1 \u0111\u1ed9ng ng\u1eaft ngu\u1ed3n khi nhi\u1ec7t \u0111\u1ed9 v\u01b0\u1ee3t qu\u00e1 m\u1ee9c an to\u00e0n.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/cach_hoat_dong_cua_bo_bao_ve_qua_nhiet.png\" alt=\"C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 b\u1ea3o v\u1ec7 qu\u00e1 nhi\u1ec7t\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>C\u00e1ch Ho\u1ea1t \u0110\u1ed9ng C\u1ee7a B\u1ed9 B\u1ea3o V\u1ec7 Qu\u00e1 Nhi\u1ec7t<\/h2>\n<p>B\u1ed9 b\u1ea3o v\u1ec7 qu\u00e1 nhi\u1ec7t l\u00e0 thi\u1ebft b\u1ecb quan tr\u1ecdng trong nhi\u1ec1u h\u1ec7 th\u1ed1ng c\u01a1 kh\u00ed v\u00e0 \u0111i\u1ec7n t\u1eed, gi\u00fap b\u1ea3o v\u1ec7 c\u00e1c thi\u1ebft b\u1ecb kh\u1ecfi b\u1ecb h\u1ecfng h\u00f3c do nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao. Hi\u1ec3u \u0111\u01b0\u1ee3c c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 b\u1ea3o v\u1ec7 qu\u00e1 nhi\u1ec7t s\u1ebd gi\u00fap ch\u00fang ta n\u1eafm b\u1eaft \u0111\u01b0\u1ee3c t\u1ea7m quan tr\u1ecdng c\u1ee7a thi\u1ebft b\u1ecb n\u00e0y trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t.<\/p>\n<h2>C\u1ea5u T\u1ea1o C\u1ee7a B\u1ed9 B\u1ea3o V\u1ec7 Qu\u00e1 Nhi\u1ec7t<\/h2>\n<p>B\u1ed9 b\u1ea3o v\u1ec7 qu\u00e1 nhi\u1ec7t th\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o t\u1eeb ba ph\u1ea7n ch\u00ednh:<\/p>\n<ul>\n<li><strong>C\u1ea3m bi\u1ebfn nhi\u1ec7t:<\/strong> C\u00f4ng d\u1ee5ng c\u1ee7a c\u1ea3m bi\u1ebfn nhi\u1ec7t l\u00e0 \u0111o nhi\u1ec7t \u0111\u1ed9 c\u1ee7a thi\u1ebft b\u1ecb ho\u1eb7c khu v\u1ef1c c\u1ea7n b\u1ea3o v\u1ec7. C\u00e1c lo\u1ea1i c\u1ea3m bi\u1ebfn ph\u1ed5 bi\u1ebfn bao g\u1ed3m nhi\u1ec7t \u0111i\u1ec7n tr\u1edf (thermistor) v\u00e0 thermocouple.<\/li>\n<li><strong>B\u1ed9 \u0111i\u1ec1u khi\u1ec3n:<\/strong> Nh\u1eadn t\u00edn hi\u1ec7u t\u1eeb c\u1ea3m bi\u1ebfn nhi\u1ec7t v\u00e0 so s\u00e1nh v\u1edbi gi\u00e1 tr\u1ecb nhi\u1ec7t \u0111\u1ed9 ng\u01b0\u1ee1ng \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u01b0\u1edbc. N\u1ebfu nhi\u1ec7t \u0111\u1ed9 v\u01b0\u1ee3t qu\u00e1 ng\u01b0\u1ee1ng n\u00e0y, b\u1ed9 \u0111i\u1ec1u khi\u1ec3n s\u1ebd k\u00edch ho\u1ea1t c\u01a1 ch\u1ebf b\u1ea3o v\u1ec7.<\/li>\n<li><strong>C\u01a1 ch\u1ebf ng\u1eaft:<\/strong> Ng\u1eaft ngu\u1ed3n cung c\u1ea5p \u0111i\u1ec7n ho\u1eb7c d\u1eebng qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec3 gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 v\u00e0 ng\u0103n ng\u1eeba h\u1ecfng h\u00f3c ho\u1eb7c nguy hi\u1ec3m.<\/li>\n<\/ul>\n<h2>Nguy\u00ean L\u00fd Ho\u1ea1t \u0110\u1ed9ng<\/h2>\n<p>B\u1ed9 b\u1ea3o v\u1ec7 qu\u00e1 nhi\u1ec7t ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd r\u1eb1ng nhi\u1ec7t \u0111\u1ed9 c\u1ee7a thi\u1ebft b\u1ecb ho\u1eb7c h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t li\u00ean t\u1ee5c. Qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 nh\u01b0 sau:<\/p>\n<ol>\n<li>C\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111o nhi\u1ec7t \u0111\u1ed9 c\u1ee7a thi\u1ebft b\u1ecb.<\/li>\n<li>Gi\u00e1 tr\u1ecb nhi\u1ec7t \u0111\u1ed9 \u0111o \u0111\u01b0\u1ee3c g\u1eedi v\u1ec1 b\u1ed9 \u0111i\u1ec1u khi\u1ec3n.<\/li>\n<li>B\u1ed9 \u0111i\u1ec1u khi\u1ec3n so s\u00e1nh gi\u00e1 tr\u1ecb nhi\u1ec7t \u0111\u1ed9 v\u1edbi ng\u01b0\u1ee1ng nhi\u1ec7t \u0111\u1ed9 \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u01b0\u1edbc.<\/li>\n<li>N\u1ebfu nhi\u1ec7t \u0111\u1ed9 v\u01b0\u1ee3t qu\u00e1 ng\u01b0\u1ee1ng, b\u1ed9 \u0111i\u1ec1u khi\u1ec3n s\u1ebd k\u00edch ho\u1ea1t c\u01a1 ch\u1ebf ng\u1eaft \u0111\u1ec3 ng\u0103n ng\u1eeba nguy hi\u1ec3m.<\/li>\n<li>Sau khi nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m xu\u1ed1ng d\u01b0\u1edbi ng\u01b0\u1ee1ng, h\u1ec7 th\u1ed1ng s\u1ebd ho\u1ea1t \u0111\u1ed9ng tr\u1edf l\u1ea1i b\u00ecnh th\u01b0\u1eddng.<\/li>\n<\/ol>\n<h2>\u1ee8ng D\u1ee5ng Th\u1ef1c Ti\u1ec5n<\/h2>\n<p>B\u1ed9 b\u1ea3o v\u1ec7 qu\u00e1 nhi\u1ec7t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau \u0111\u1ec3 b\u1ea3o v\u1ec7 c\u00e1c thi\u1ebft b\u1ecb v\u00e0 h\u1ec7 th\u1ed1ng kh\u1ecfi nguy c\u01a1 h\u1ecfng h\u00f3c do qu\u00e1 nhi\u1ec7t. M\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>B\u1ea3o v\u1ec7 \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n:<\/strong> Ng\u0103n ng\u1eeba \u0111\u1ed9ng c\u01a1 b\u1ecb qu\u00e1 nhi\u1ec7t khi l\u00e0m vi\u1ec7c v\u1edbi t\u1ea3i l\u1edbn trong th\u1eddi gian d\u00e0i.<\/li>\n<li><strong>B\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed:<\/strong> Ng\u0103n ng\u1eeba c\u00e1c m\u1ea1ch \u0111i\u1ec7n t\u1eed b\u1ecb h\u1ecfng do nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao.<\/li>\n<li><strong>\u1ee8ng d\u1ee5ng trong h\u1ec7 th\u1ed1ng \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed:<\/strong> \u0110\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 v\u00e0 an to\u00e0n.<\/li>\n<\/ul>\n<p>B\u1ed9 b\u1ea3o v\u1ec7 qu\u00e1 nhi\u1ec7t \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb v\u00e0 h\u1ec7 th\u1ed1ng trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p. B\u1eb1ng c\u00e1ch hi\u1ec3u r\u00f5 c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3, ch\u00fang ta c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0 ch\u00ednh x\u00e1c \u0111\u1ec3 b\u1ea3o v\u1ec7 c\u00e1c t\u00e0i s\u1ea3n qu\u00fd gi\u00e1 kh\u1ecfi nguy c\u01a1 h\u1ecfng h\u00f3c do nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>B\u1ed9 b\u1ea3o v\u1ec7 qu\u00e1 nhi\u1ec7t: C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb kh\u1ecfi h\u01b0 h\u1ecfng nhi\u1ec7t b\u1eb1ng c\u00e1ch t\u1ef1 \u0111\u1ed9ng ng\u1eaft ngu\u1ed3n khi nhi\u1ec7t \u0111\u1ed9 v\u01b0\u1ee3t qu\u00e1 m\u1ee9c an to\u00e0n.<\/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>C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 b\u1ea3o v\u1ec7 qu\u00e1 nhi\u1ec7t<\/title>\n<meta name=\"description\" content=\"B\u1ed9 b\u1ea3o v\u1ec7 qu\u00e1 nhi\u1ec7t: C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb kh\u1ecfi h\u01b0 h\u1ecfng nhi\u1ec7t b\u1eb1ng c\u00e1ch t\u1ef1 \u0111\u1ed9ng ng\u1eaft ngu\u1ed3n khi nhi\u1ec7t \u0111\u1ed9 v\u01b0\u1ee3t qu\u00e1 m\u1ee9c an to\u00e0n.\" \/>\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\/cach-hoat-dong-cua-bo-bao-ve-qua-nhiet\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 b\u1ea3o v\u1ec7 qu\u00e1 nhi\u1ec7t\" \/>\n<meta property=\"og:description\" content=\"B\u1ed9 b\u1ea3o v\u1ec7 qu\u00e1 nhi\u1ec7t: C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb kh\u1ecfi h\u01b0 h\u1ecfng nhi\u1ec7t b\u1eb1ng c\u00e1ch t\u1ef1 \u0111\u1ed9ng ng\u1eaft ngu\u1ed3n khi nhi\u1ec7t \u0111\u1ed9 v\u01b0\u1ee3t qu\u00e1 m\u1ee9c an to\u00e0n.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.thermal-engineering.org\/vi\/cach-hoat-dong-cua-bo-bao-ve-qua-nhiet\/\" \/>\n<meta property=\"og:site_name\" content=\"Thermal Engineering\" \/>\n<meta property=\"article:published_time\" content=\"2024-09-18T15:41:39+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/cach_hoat_dong_cua_bo_bao_ve_qua_nhiet.png\" \/>\n<meta name=\"twitter:card\" content=\"summary\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\">\n\t<meta name=\"twitter:data1\" content=\"Nick Connor\">\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\">\n\t<meta name=\"twitter:data2\" content=\"3 minutes\">\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#website\",\"url\":\"https:\/\/www.thermal-engineering.org\/fr\/\",\"name\":\"Thermal Engineering\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/www.thermal-engineering.org\/fr\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"vi-VN\"},{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.thermal-engineering.org\/vi\/cach-hoat-dong-cua-bo-bao-ve-qua-nhiet\/#primaryimage\",\"inLanguage\":\"vi-VN\",\"url\":\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/cach_hoat_dong_cua_bo_bao_ve_qua_nhiet.png\",\"width\":1000,\"height\":1000,\"caption\":\"C\\u00e1ch ho\\u1ea1t \\u0111\\u1ed9ng c\\u1ee7a b\\u1ed9 b\\u1ea3o v\\u1ec7 qu\\u00e1 nhi\\u1ec7t\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.thermal-engineering.org\/vi\/cach-hoat-dong-cua-bo-bao-ve-qua-nhiet\/#webpage\",\"url\":\"https:\/\/www.thermal-engineering.org\/vi\/cach-hoat-dong-cua-bo-bao-ve-qua-nhiet\/\",\"name\":\"C\\u00e1ch ho\\u1ea1t \\u0111\\u1ed9ng c\\u1ee7a b\\u1ed9 b\\u1ea3o v\\u1ec7 qu\\u00e1 nhi\\u1ec7t\",\"isPartOf\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/vi\/cach-hoat-dong-cua-bo-bao-ve-qua-nhiet\/#primaryimage\"},\"datePublished\":\"2024-09-18T15:41:39+00:00\",\"dateModified\":\"2024-09-18T15:41:39+00:00\",\"author\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\"},\"description\":\"B\\u1ed9 b\\u1ea3o v\\u1ec7 qu\\u00e1 nhi\\u1ec7t: C\\u00e1ch th\\u1ee9c ho\\u1ea1t \\u0111\\u1ed9ng b\\u1ea3o v\\u1ec7 thi\\u1ebft b\\u1ecb kh\\u1ecfi h\\u01b0 h\\u1ecfng nhi\\u1ec7t b\\u1eb1ng c\\u00e1ch t\\u1ef1 \\u0111\\u1ed9ng ng\\u1eaft ngu\\u1ed3n khi nhi\\u1ec7t \\u0111\\u1ed9 v\\u01b0\\u1ee3t qu\\u00e1 m\\u1ee9c an to\\u00e0n.\",\"inLanguage\":\"vi-VN\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.thermal-engineering.org\/vi\/cach-hoat-dong-cua-bo-bao-ve-qua-nhiet\/\"]}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\",\"name\":\"Nick Connor\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#personlogo\",\"inLanguage\":\"vi-VN\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g\",\"caption\":\"Nick Connor\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","_links":{"self":[{"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/posts\/676188"}],"collection":[{"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/comments?post=676188"}],"version-history":[{"count":0,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/posts\/676188\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/media?parent=676188"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/categories?post=676188"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/tags?post=676188"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}