{"id":4499,"date":"2026-04-01T06:56:01","date_gmt":"2026-04-01T06:56:01","guid":{"rendered":"https:\/\/hydrathpower.com\/?p=4499"},"modified":"2026-04-01T06:56:01","modified_gmt":"2026-04-01T06:56:01","slug":"%e6%b0%b4%e5%8a%9b%e5%85%ac%e5%bc%8f%e8%a8%88%e7%ae%97","status":"publish","type":"post","link":"https:\/\/hydrathpower.com\/zh_tw\/hydraulic-formulas-and-calculations-power-flow-force-and-speed-explained\/","title":{"rendered":"\u6c34\u529b\u516c\u5f0f\u8207\u8a08\u7b97\uff1a\u529f\u7387\u3001\u6d41\u91cf\u3001\u529b\u548c\u901f\u5ea6\u89e3\u91cb"},"content":{"rendered":"<h3>\u6b64\u9801\u9762\u662f\u4ec0\u9ebc\uff1f<\/h3>\n<p>\u672c\u9801\u6536\u96c6\u4e86\u5de5\u7a0b\u5e2b\u65e5\u5e38\u4f7f\u7528\u7684\u6db2\u58d3\u516c\u5f0f\u3002\u6bcf\u500b\u516c\u5f0f\u90fd\u4ee5\u7b26\u5408\u696d\u754c\u5be6\u52d9\u7684\u55ae\u4f4d\u986f\u793a\uff0c\u4e26\u96a8\u9644\u53ef\u9069\u7528\u65bc\u60a8\u7cfb\u7d71\u7684\u5c0f\u7bc4\u4f8b\u3002.<\/p>\n<h3>\u95dc\u9375\u516c\u5f0f<\/h3>\n<ul>\n<li>\u58d3\u529b-\u529b-\u9762\u7a4d\uff08\u82f1\u5236\uff09\uff1aP(psi) = F(lbf) \/ A(in\u00b2); F = p \u00d7 A; A = F \/ p<\/li>\n<li>\u6db2\u58d3\u529f\u7387\uff1a hp = p(psi) \u00d7 Q(gpm) \/ 1714\uff1b kW = Q(l\/min) \u00d7 p(bar) \/ 600<\/li>\n<li>\u5e6b\u6d66\u6d41\u91cf\uff1aQ(gpm) = n(rpm) \u00d7 D(in\u00b3\/rev) \/ 231\uff1bQ(l\/min) = D(cm\u00b3\/rev) \u00d7 n(rpm) \/ 1000<\/li>\n<li>\u99ac\u9054\u626d\u529b\uff1aT(in-lb) = p(psi) \u00d7 D(in\u00b3\/rev) \/ 6.28\uff1bT(Nm) = D(cm\u00b3\/rev) \u00d7 p(bar) \/ (20\u03c0)<\/li>\n<li>\u5713\u67f1\u9762\u7a4d\uff1aA = \u03c0d\u00b2\/4\uff1b\u687f\u5074\u9762\u7a4d = A<sub>\u6d3b\u585e<\/sub> - A<sub>\u68d2<\/sub><\/li>\n<li>\u5713\u67f1\u529b\uff1aF = p \u00d7 A<\/li>\n<li>\u6efe\u7b52\u901f\u5ea6\uff1a v(ft\/min) = 19.25 \u00d7 Q(gpm) \/ A(in\u00b2)\uff1b\u6216\u4ee5\u4e00\u81f4\u7684\u55ae\u4f4d\u8868\u793a v = Q\/A<\/li>\n<li>\u7dda\u901f\u6e96\u5247\uff1a v(ft\/s) = Q(gpm) \u00d7 0.3208 \/ A(in\u00b2)<\/li>\n<li>\u71b1\u7576\u91cf\uff1a1 hp = 2545 BTU\/hr \u2248 746 W<\/li>\n<\/ul>\n<h3>\u5de5\u4f5c\u7bc4\u4f8b<\/h3>\n<ol>\n<li>150 bar \u548c 20 L\/min \u6642\u7684\u6db2\u58d3\u529f\u7387Ph(kW) = Q \u00d7 p \/ 600 = 20 \u00d7 150 \/ 600 = 5 kW (\u2248 6.7 hp)<\/li>\n<li><a href=\"\/hydraulic-cylinders\/\">\u6efe\u7b52<\/a> \u63a8\u529b = 14 MPa \u00d7 0.001963 m\u00b2 \u2248 27.5 kN<\/li>\n<li>\u99ac\u9054\u626d\u529b\uff0cD = 25 cm\u00b3\/rev, p = 140 barT = D \u00d7 p \/ (20\u03c0) = 25 \u00d7 140 \/ 62.832 \u2248 55.7 Nm<\/li>\n<li>\u8edf\u7ba1\u901f\u5ea6\u6aa2\u67e5\uff0cQ = 30 L\/min (\u2248 7.93 gpm)\uff0c1\/2 in IDA = \u03c0 \u00d7 (0.5 in)\u00b2 \/ 4 = 0.196 in\u00b2v = 7.93 \u00d7 0.3208 \/ 0.196 \u2248 13.0 ft\/s<\/li>\n<\/ol>\n<h3>\u5982\u4f55\u8abf\u6574 HPU \u5927\u5c0f\uff08\u4e94\u500b\u6b65\u9a5f\uff09<\/h3>\n<ol>\n<li>\u5b9a\u7fa9\u5de5\u4f5c\uff1a\u9031\u671f\u6642\u9593\u3001\u5cf0\u503c\u58d3\u529b\u3001\u74b0\u5883\u6eab\u5ea6\u3002.<\/li>\n<li>\u6839\u64da\u6240\u9700\u8ca0\u8f09\u8a08\u7b97\u81f4\u52d5\u5668\u9762\u7a4d\u548c\u529b\uff1b\u8a2d\u5b9a\u8a2d\u8a08\u58d3\u529b\uff0c\u9918\u91cf\u70ba 10-20%\u3002.<\/li>\n<li>\u6839\u64da\u76ee\u6a19\u8f49\u901f\u548c\u9762\u7a4d\u63a8\u5c0e\u51fa\u6d41\u91cf\uff1b\u6839\u64da\u9810\u671f\u8f49\u901f\u8f49\u63db\u70ba\u5e6b\u6d66\u6392\u91cf\u3002.<\/li>\n<li>\u6839\u64da p \u548c Q \u4f30\u8a08\u6db2\u58d3\u529f\u7387\uff1b\u61c9\u7528\u7e3d\u6548\u7387\u4f86\u9078\u64c7\u9a45\u52d5\u99ac\u9054\u3002.<\/li>\n<li>\u6aa2\u67e5\u7dda\u901f\u5ea6\u548c\u71b1\u8ca0\u8f09\uff1b\u64da\u6b64\u8abf\u6574\u5132\u6c34\u5eab\u548c\u51b7\u537b\u7684\u5927\u5c0f\u3002.<\/li>\n<\/ol>\n<h3>\u5e38\u898b\u554f\u984c<\/h3>\n<h4>\u6db2\u58d3\u99ac\u529b\u516c\u5f0f\u662f\u4ec0\u9ebc\uff1f<\/h4>\n<p>hp = p(psi) \u00d7 Q(gpm) \/ 1714\u3002\u5c0d\u65bc\u516c\u5236\u7cfb\u7d71\uff0ckW = Q(l\/min) \u00d7 p(bar) \/ 600\u3002.<\/p>\n<h4>\u5982\u4f55\u8a08\u7b97\u6c7d\u7f38\u901f\u5ea6\uff1f<\/h4>\n<p>\u4ee5\u4e00\u81f4\u7684\u55ae\u4f4d\u5c07\u6d41\u91cf\u9664\u4ee5\u6d3b\u585e\u9762\u7a4d\u3002\u82f1\u5236\uff0cv(ft\/min) = 19.25 \u00d7 Q(gpm) \/ A(in\u00b2)\u3002.<\/p>\n<h4>\u5982\u4f55\u5f9e\u58d3\u529b\u548c\u6392\u91cf\u627e\u51fa\u99ac\u9054\u626d\u529b\uff1f<\/h4>\n<p>\u4f7f\u7528 T(in-lb) = p(psi) \u00d7 D(in\u00b3\/rev) \/ 6.28 \u6216 T(Nm) = D(cm\u00b3\/rev) \u00d7 p(bar) \/ (20\u03c0)\u3002.<\/p>\n<h4>\u4ec0\u9ebc\u662f\u5178\u578b\u7684\u8edf\u7ba1\u901f\u5ea6\u9650\u5236\uff1f<\/h4>\n<p>\u58d3\u529b\u7ba1\u8def\u901a\u5e38\u4fdd\u6301\u5728 10-20 ft\/s\uff1b\u5438\u6c23\u7ba1\u8def\u5247\u4f4e\u5f97\u591a\u3002\u8acb\u52d9\u5fc5\u6838\u5c0d\u60a8\u7684\u5143\u4ef6\u898f\u683c\u3002.<\/p>\n<h4>\u5982\u4f55\u6839\u64da\u58d3\u964d\u4f30\u7b97\u71b1\u8ca0\u8f09\uff1f<\/h4>\n<p>\u640d\u5931\u529f\u7387 (hp) \u2248 \u0394p(psi) \u00d7 Q(gpm) \/ 1714\uff0c\u7136\u5f8c\u8f49\u63db\u70ba BTU\/hr \u6216\u74e6\u7279\u3002.<\/p>","protected":false},"excerpt":{"rendered":"<p>What is This Page? This page collects the hydraulic formulas engineers use every day. Each equation is shown with units [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4505,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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