{"id":4581,"date":"2026-09-08T00:38:11","date_gmt":"2026-09-08T07:38:11","guid":{"rendered":"https:\/\/www.26yc.com\/run-around-coil-design-guide\/"},"modified":"2026-10-08T23:36:08","modified_gmt":"2026-10-09T06:36:08","slug":"run-around-coil-design-guide","status":"publish","type":"post","link":"https:\/\/www.26yc.com\/zh_cn\/run-around-coil-design-guide\/","title":{"rendered":"\u7ed5\u7ba1\u5f0f\u76d8\u7ba1\u7cfb\u7edf\uff1a\u5206\u79bb\u6c14\u6d41\u7684\u8bbe\u8ba1\u89c4\u5219"},"content":{"rendered":"<p>When the supply and exhaust ducts are in different parts of a building, or when you need absolute stream separation with no rotating parts, the run-around or coupled coil loop is often the only sensible recovery option. It uses two hydronic coils, one in the exhaust and one in the supply, joined by a pumped fluid loop that carries the recovered energy between them. This article covers how the loop couples the streams, the fluid choices and their trade-offs, how it stacks up against a heat pipe, and a practical design checklist.<\/p>\n<h2>How it couples streams<\/h2>\n<p>\u73af\u6d41\u7cfb\u7edf\u5c06\u4e00\u53f0\u76d8\u7ba1\u7f6e\u4e8e\u6392\u98ce\u6c14\u6d41\u4e2d\uff0c\u53e6\u4e00\u53f0\u5bf9\u5e94\u76d8\u7ba1\u7f6e\u4e8e\u9001\u98ce\u6c14\u6d41\u4e2d\uff0c\u518d\u7528\u8f93\u9001\u4f20\u70ed\u6d41\u4f53\uff08\u901a\u5e38\u4e3a\u6c34\u6216\u6c34\uff0d\u4e59\u4e8c\u9187\uff09\u7684\u7ba1\u9053\u5c06\u4e8c\u8005\u8fde\u63a5\u3002\u6392\u98ce\u76d8\u7ba1\u628a\u70ed\u91cf\u4ea4\u7ed9\u6d41\u4f53\uff0c\u6cf5\u5c06\u5176\u5faa\u73af\u81f3\u9001\u98ce\u76d8\u7ba1\uff0c\u7531\u8be5\u76d8\u7ba1\u628a\u70ed\u91cf\u4f20\u9012\u7ed9\u8fdb\u5165\u7684\u65b0\u98ce\u3002\u5173\u952e\u5728\u4e8e\uff0c\u4e24\u80a1\u6c14\u6d41\u4ece\u4e0d\u5171\u4eab\u4efb\u4f55\u8bbe\u5907\u6216\u4ecb\u8d28\uff0c\u4ec5\u901a\u8fc7\u5bc6\u95ed\u6d41\u4f53\u56de\u8def\u8026\u5408\uff0c\u56e0\u6b64\u9001\u98ce\u4e0e\u6392\u98ce\u5b8c\u5168\u9694\u79bb\u2014\u2014\u4e0e\u70ed\u7ba1\u76f8\u540c\uff0c\u5374\u53ef\u8de8\u8d8a\u4efb\u610f\u8ddd\u79bb\u3002\u6b63\u56e0\u5982\u6b64\uff0c\u5f53\u7ba1\u9053\u76f8\u8ddd\u751a\u8fdc\u3001\u70ed\u8f6e\u6216\u677f\u5f0f\u65e0\u6cd5 physically \u8de8\u8d8a\u95f4\u9699\uff0c\u6216\u6c61\u67d3\u89c4\u5219\u7981\u6b62\u4efb\u4f55\u5171\u4eab\u57fa\u4f53\u65f6\uff0c\u73af\u6d41\u76d8\u7ba1\u5c31\u662f\u6b63\u786e\u7684\u9009\u62e9\u3002\u4e00 <a href=\"https:\/\/www.26yc.com\/zh_cn\/heat-pipe-run-around-coil-recovery-en\/\">\u73af\u6d41\u76d8\u7ba1 vs \u70ed\u7ba1 \u90e8\u5206<\/a> \u503c\u5f97\u4e0e\u672c\u6587\u4e00\u5e76\u9605\u8bfb\u3002<\/p>\n<h2>Fluid choices<\/h2>\n<p>\u4f20\u70ed\u6d41\u4f53\u51e0\u4e4e\u603b\u662f\u6dfb\u52a0\u4e86\u7f13\u8680\u5242\u7684\u6c34\u4e0e\u4e59\u4e8c\u9187\uff08\u4e59\u70ef\u57fa\u6216\u4e19\u70ef\u57fa\uff09\u6df7\u5408\u6db2\uff0c\u4ee5\u6291\u5236\u51bb\u7ed3\u548c\u8150\u8680\u3002\u4e59\u4e8c\u9187\u6d53\u5ea6\u662f\u5173\u952e\u65cb\u94ae\uff1a\u8fc7\u5c11\u5219\u5faa\u73af\u5728\u51ac\u5b63\u51bb\u7ed3\uff0c\u8fc7\u591a\u5219\u6d41\u4f53\u53d8\u9ecf\u3001\u6cf5\u8017\u529f\u589e\u52a0\u3001\u4f20\u70ed\u7cfb\u6570\u4e0b\u964d\u300230%\u201350% \u7684\u4e59\u4e8c\u9187\u6df7\u5408\u6bd4\u53ef\u8986\u76d6\u5927\u591a\u6570\u6c14\u5019\uff1b\u66f4\u51b7\u7684\u7ad9\u70b9\u504f\u5411\u9ad8\u7aef\u3002\u6d41\u4f53\u8fd8\u9700\u914d\u5907\u4e0e\u76d8\u7ba1\u6750\u8d28\uff08\u94dc\u3001\u94a2\u6216\u94dd\uff09\u5339\u914d\u7684\u7f13\u8680\u5242\u5305\uff0c\u4ee5\u907f\u514d\u591a\u5e74\u8fd0\u884c\u4e2d\u7684\u7535\u5076\u8150\u8680\u3002\u4e3a\u8fd9\u79cd\u5b8c\u5168\u9694\u79bb\u4ed8\u51fa\u7684\u4ee3\u4ef7\u662f\u6cf5\u529f\u7387\uff1a\u5faa\u73af\u9760\u8017\u7535\u63a8\u52a8\u6d41\u4f53\uff0c\u800c\u70ed\u7ba1\u6216\u70ed\u8f6e\u65e0\u9700\u5982\u6b64\uff0c\u56e0\u6b64\u51c0\u56de\u6536\u80fd\u91cf\u5fc5\u987b\u8d85\u8fc7\u8fd9\u4e00\u5bc4\u751f\u8d1f\u8f7d\u624d\u7b97\u5212\u7b97\u3002<\/p>\n<h2>vs heat pipe<\/h2>\n<p>\u73af\u6d41\u76d8\u7ba1\u4e0e\u70ed\u7ba1\u89e3\u51b3\u7684\u662f\u540c\u4e00\u7c7b\u5206\u79bb\u6c14\u6d41\u95ee\u9898\uff0c\u9009\u62e9\u4e3b\u8981\u770b\u5e03\u7f6e\u4e0e\u6548\u7387\u3002\u4e00 <a href=\"https:\/\/www.26yc.com\/zh_cn\/plate-heat-exchangers-guide-en\/\">\u677f\u5f0f\u6362\u70ed\u5668<\/a> \u70ed\u7ba1\u5bf9\u76f8\u90bb\u6c14\u6d41\u6700\u4fbf\u5b9c\uff0c\u4f46\u5728\u76f8\u8ddd\u8f83\u8fdc\u7684\u7ba1\u9053\u4e4b\u95f4\uff0c\u70ed\u7ba1\u8981\u6c42\u4e24\u7ec4\u6362\u70ed\u5668\u5408\u7406\u5730\u9760\u8fd1\u5e76\u4e3a\u56de\u8def\u6b63\u786e\u53d6\u5411\uff0c\u800c\u73af\u6d41\u76d8\u7ba1\u53ef\u4ee5\u628a\u7ba1\u9053\u6577\u8bbe\u5230\u4efb\u4f55\u5730\u65b9\u3002\u70ed\u7ba1\u5728\u6548\u7387\u4e0a\u80dc\u51fa\uff0c\u901a\u5e38\u663e\u70ed\u8fbe70%\u4ee5\u4e0a\u4e14\u65e0\u6cf5\u3001\u96f6\u8fd0\u884c\u6210\u672c\uff1b\u73af\u6d41\u76d8\u7ba1\u6548\u7387\u4e00\u822c\u572850%\u201365%\uff0c\u4f46\u63d0\u4f9b\u65e0\u9650\u7684\u5e03\u7f6e\u81ea\u7531\u4e0e\u7b80\u4fbf\u7ef4\u62a4\uff0c\u53ef\u5728\u4e0d\u89e6\u53ca\u6c14\u6d41\u7684\u60c5\u51b5\u4e0b\u68c0\u4fee\u76d8\u7ba1\u6216\u6cf5\u3002\u5bf9\u4e8e\u6539\u9020\u578b\u673a\u623f\u548c\u957f\u8ddd\u79bb\u98ce\u7ba1\uff0c\u8fd9\u79cd\u7075\u6d3b\u6027\u901a\u5e38\u8d77\u51b3\u5b9a\u4f5c\u7528\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u5224\u5b9a\u57fa\u51c6<\/th>\n<th>\u95f4\u63a5\u5f0f\u5faa\u73af\u76d8\u7ba1<\/th>\n<th>\u70ed\u7ba1<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u6c14\u6d41\u5206\u79bb<\/td>\n<td>\u5b8c\u5168\uff0c\u6d41\u4f53\u56de\u8def<\/td>\n<td>\u5b8c\u5168\uff0c\u5bc6\u5c01\u7ba1\u9053<\/td>\n<\/tr>\n<tr>\n<td>\u5e03\u7f6e\u81ea\u7531\u5ea6<\/td>\n<td>\u7ba1\u9053\u6577\u8bbe\u65e0\u9650<\/td>\n<td>\u76d8\u7ba1\u987b\u540c\u5740\u5e03\u7f6e<\/td>\n<\/tr>\n<tr>\n<td>\u5178\u578b\u6548\u7387<\/td>\n<td>\u663e\u70ed 50% \u81f3 65%<\/td>\n<td>\u663e\u70ed 65% \u81f3 75%<\/td>\n<\/tr>\n<tr>\n<td>\u5bc4\u751f\u8d1f\u8f7d<\/td>\n<td>\u6cf5\u529f\u7387<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<tr>\n<td>\u7ef4\u62a4<\/td>\n<td>\u76d8\u7ba1\u4e0e\u6cf5\u53ef\u68c0\u4fee<\/td>\n<td>\u82af\u4f53\u5bc6\u5c01\uff0c\u5bff\u547d\u957f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Design checklist<\/h2>\n<p>\u73af\u6d41\u56de\u8def\u7684\u9009\u578b\u9075\u5faa\u51e0\u6761\u89c4\u5219\u3002\u4f7f\u4e24\u76d8\u7ba1\u7684\u6b63\u9762\u9762\u79ef\u548c\u6b63\u9762\u98ce\u901f\u76f8\u5339\u914d\uff0c\u4ee5\u514d\u76f8\u4e92\u62d6\u7d2f\u3002\u6839\u636e\u6392\u98ce\u4e0e\u9001\u98ce\u6e29\u5dee\u786e\u5b9a\u6d41\u4f53\u6e29\u5347\uff0c\u5e76\u4ee5\u73b0\u5b9e\u768450%\u201365%\u6548\u7387\u4e3a\u76ee\u6807\u3002\u4e3a\u6cf5\u9009\u578b\u65f6\u8981\u8003\u8651\u56de\u8def\u957f\u5ea6\u548c\u4e59\u4e8c\u9187\u9ecf\u5ea6\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662f\u70ed\u8d1f\u8377\uff0c\u5e76\u628a\u5b83\u7684kWh\u4e0e\u56de\u6536\u80fd\u91cf\u505a\u6743\u8861\u3002\u5bf9\u8fde\u63a5\u7ba1\u9053\u4fdd\u6e29\uff0c\u907f\u514d\u56de\u6536\u7684\u70ed\u91cf\u5728\u673a\u623f\u5185\u635f\u5931\u3002\u6700\u540e\uff0c\u589e\u8bbe\u65c1\u901a\u6216\u5207\u65ad\u88c5\u7f6e\uff0c\u4f7f\u56de\u8def\u53ef\u5728\u4e0d\u5e72\u6270\u901a\u98ce\u7684\u60c5\u51b5\u4e0b\u9000\u51fa\u8fd0\u884c\u4ee5\u8fdb\u884c\u6e05\u6d17\u3002\u6211\u4eec\u7684 <a href=\"https:\/\/www.26yc.com\/zh_cn\/heat-exchanger-selection-guide-en\/\">\u9009\u578b\u6307\u5357<\/a> \u4f1a\u9010\u6b65\u6f14\u793a\u8ba1\u7b97\uff0c\u5e76\u53ef\u6839\u636e\u60a8\u7684\u7ba1\u9053\u5e03\u5c40\u4e3a\u4e00\u56de\u8def\u9009\u578b\u3002<\/p>\n<h2>Design your loop with QIYU<\/h2>\n<p>QIYU \u63d0\u4f9b\u7528\u4e8e\u5206\u79bb\u6c14\u6d41\u56de\u6536\u7684\u73af\u6d41\u76d8\u7ba1\u7ec4\u4ef6\u4e0e\u70ed\u7ba1\u82af\u4f53\uff0c\u5e76\u914d\u5907\u9002\u914d\u60a8\u6c14\u5019\u4e0e\u76d8\u7ba1\u6750\u8d28\u7684\u6d41\u4f53\u56de\u8def\u3002\u8bf7\u5c06\u60a8\u7684\u7ba1\u9053\u5e03\u5c40\u3001\u98ce\u91cf\u548c\u6e29\u5347\u53d1\u7ed9\u6211\u4eec\uff0c\u7136\u540e <a href=\"https:\/\/www.26yc.com\/zh_cn\/contact-us\/\">\u8054\u7cfb\u6211\u4eec<\/a> \u4ee5\u83b7\u53d6\u9009\u578b\u62a5\u4ef7\u3002\u53ef\u901a\u8fc7 WhatsApp +86 15753355505\u3001\u7f8e\u56fd\u7535\u8bdd +1 915 295-3666\uff0c\u6216\u90ae\u7bb1 kuns913@gmail.com \u8054\u7cfb\u6768\u7ecf\u7406\u3002\u6211\u4eec\u534f\u52a9\u60a8\u9009\u62e9\u5408\u9002\u7684\u578b\u53f7\u6216\u8bbe\u8ba1\u5b9a\u5236\u56de\u6536\u65b9\u6848\u3002<\/p>\n<div class=\"yc-related\">\n<h3>\u76f8\u5173\u6587\u7ae0<\/h3>\n<ul>\n<li><a href=\"https:\/\/www.26yc.com\/zh_cn\/hr-vs-erv-differences\/\">HRV \u4e0e ERV\uff1a\u51b3\u5b9a\u5efa\u7b51\u8212\u9002\u5ea6\u7684\u5173\u952e\u5dee\u5f02<\/a><\/li>\n<li><a href=\"https:\/\/www.26yc.com\/zh_cn\/data-center-support-space-heat-recovery\/\">\u6570\u636e\u4e2d\u5fc3\u914d\u5957\u7a7a\u95f4\u70ed\u56de\u6536\uff1a\u529e\u516c\u5ba4\u3001\u5b9e\u9a8c\u5ba4\u4e0e\u88c5\u5378\u533a<\/a><\/li>\n<li><a href=\"https:\/\/www.26yc.com\/zh_cn\/heat-recovery-ventilation-retrofit\/\">Retrofitting Heat Recovery Ventilation into Older Buildings<\/a><\/li>\n<li><a href=\"https:\/\/www.26yc.com\/zh_cn\/crh-2026-heat-recovery-trends\/\" title=\"CRH 2026: What the World\u2019s Largest HVAC&amp;amp;R Expo Revealed About Heat Recovery\">CRH 2026: What the World\u2019s Largest HVAC&amp;amp;R Expo Revealed About Heat Recovery<\/a><\/li>\n<li><a href=\"https:\/\/www.26yc.com\/zh_cn\/sensible-vs-total-energy-recovery-how-to-pick-the-right-exchanger\/\" title=\"\u663e\u70ed\u56de\u6536 vs \u5168\u70ed\u56de\u6536\uff1a\u5982\u4f55\u9009\u5bf9\u6362\u70ed\u5668\">\u663e\u70ed\u56de\u6536 vs \u5168\u70ed\u56de\u6536\uff1a\u5982\u4f55\u9009\u5bf9\u6362\u70ed\u5668<\/a><\/li>\n<\/ul>\n<\/div>\n<h2 class=\"yc-faq-title\">\u5e38\u89c1\u95ee\u9898<\/h2>\n<p class=\"yc-faq\"><strong>Q: When is a run-around coil the only option?<\/strong><br \/>When supply and exhaust ducts are far apart, when no rotating parts are allowed, or when contamination rules forbid any shared matrix, the coupled coil loop is the sensible choice because it couples streams only through a sealed fluid loop.<\/p>\n<p class=\"yc-faq\"><strong>Q: What transfer fluid is used?<\/strong><br \/>The loop almost always carries water with an inhibited glycol, ethylene or propylene, chosen for freeze protection and material compatibility; the fluid never contacts either airstream.<\/p>\n<p class=\"yc-faq\"><strong>Q: How does it compare with a heat pipe?<\/strong><br \/>Both fully isolate the streams, but a run-around coil spans arbitrary distances via piping while a heat pipe is a fixed, gravity-sensitive block; the coil adds a pump and modest parasitic power.<\/p>\n<p class=\"yc-faq\"><strong>Q: What should a design checklist include?<\/strong><br \/>Confirm coil placement, fluid freeze point, pump head, coil fouling access, and control that modulates flow to the load so the loop does not over- or under-recover.<\/p>","protected":false},"excerpt":{"rendered":"<p>When the supply and exhaust ducts are in different parts of a building, or when you need absolute stream separation with no rotating parts, the run-around or coupled coil loop is often the only sensible recovery option. It uses two hydronic coils, one in the exhaust and one in the supply, joined by a pumped [&hellip;]<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[72],"tags":[203],"class_list":["post-4581","post","type-post","status-publish","format-standard","hentry","category-heat-recovery","tag-run-around-coil"],"_links":{"self":[{"href":"https:\/\/www.26yc.com\/zh_cn\/wp-json\/wp\/v2\/posts\/4581","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.26yc.com\/zh_cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.26yc.com\/zh_cn\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/www.26yc.com\/zh_cn\/wp-json\/wp\/v2\/comments?post=4581"}],"version-history":[{"count":3,"href":"https:\/\/www.26yc.com\/zh_cn\/wp-json\/wp\/v2\/posts\/4581\/revisions"}],"predecessor-version":[{"id":5093,"href":"https:\/\/www.26yc.com\/zh_cn\/wp-json\/wp\/v2\/posts\/4581\/revisions\/5093"}],"wp:attachment":[{"href":"https:\/\/www.26yc.com\/zh_cn\/wp-json\/wp\/v2\/media?parent=4581"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.26yc.com\/zh_cn\/wp-json\/wp\/v2\/categories?post=4581"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.26yc.com\/zh_cn\/wp-json\/wp\/v2\/tags?post=4581"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}