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["동 기기 기술판" 매일 한 문제

2018-06-20View Original

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本帖最后由 YORK工业冷冻 于2
Reply #22018-06-20
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Reply #32018-06-20
继续翻译
Reply #42018-06-20
制冷系统—制冷参数之压焓图学*
Reply #52018-06-21
本帖最后由 YORK工业冷冻 于 22206-6-55-5--5-5:编辑 本年度【每日一题】分三个方向:로프레드 냉각 압축기、制冷系统、油路系统,带大家全面了解制冷技术。(遇到不懂的,回答不上来的,请大家积极查阅资料,在查阅的同时你们的能力是在提升的!) (本帖凡是参与评论者奖励5财富点,回答完好者奖励10财富点,有效期两天) ============================== �制冷系统—制冷参数之焓图学:下图为制冷循环焓图,请分别说出1、2、4”、5代表制冷循环状态(举例:1:蒸发器到压缩机吸气口的气态制冷剂) 破解:1:蒸发器到压缩机吸气口的气态制冷剂 破解:&、:蒸发器到压缩机吸气口的气态制冷剂 破解:4”:节流阀前过冷状态的液体制冷剂 破解:5:蒸发器进口的低压低温液体制冷剂 ============================== �
Reply #62018-06-21
1、2、4”、5代表制冷循环的状态 1点表示P0等压线与过热温度线相交点 2点表示通过点1作等熵线与Pk等压线相交点 4”点表示Pk等压线与过冷温度线相交点 5点表示通过点4作等焓线与P0等压线相交点
Reply #72018-06-21
点1:蒸发器到压缩机吸气口的气态制冷剂。 点2:压缩机出口冷凝器的高压气态制冷剂。 点3:节流阀前过冷状态的液体制冷剂。 点4:蒸发器进口的低压低温液体制冷剂。
Reply #82018-06-22
从压焓图来看,1”--1点之间是制冷剂气体过热段,1点与吸气过热度有关;2--3点之间的温度差应该就是排气过热度,那么应该是2点与排气过热度有关。不知是否正确?还请老师指正!

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