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半封闭压缩机电机故障的原因有哪些?

发布时间:2021-07-07 08:43:04访问(wen):250

很(hen)多产品在(zai)使(shi)用时都(dou)发生故障,半封闭压(ya)缩(suo)机(ji)(ji)(ji)电(dian)机(ji)(ji)(ji)长期在(zai)一定压(ya)力和(he)温度下(xia)工(gong)作(zuo)(zuo),因此(ci)耐氟(fu)电(dian)机(ji)(ji)(ji)(以下(xia)简称电(dian)机(ji)(ji)(ji))的(de)工(gong)作(zuo)(zuo)环境相当恶劣。而且在(zai)机(ji)(ji)(ji)组运行维护过程(cheng)中(zhong),如(ru)果使(shi)用维护不当,往(wang)往(wang)会造成电(dian)机(ji)(ji)(ji)烧毁,使(shi)系统无法(fa)正常(chang)工(gong)作(zuo)(zuo)。但是(shi)之前修过的(de)机(ji)(ji)(ji)组电(dian)机(ji)(ji)(ji)还是(shi)很(hen)容(rong)易烧坏。这种半封闭压(ya)缩(suo)机(ji)(ji)(ji)电(dian)机(ji)(ji)(ji)烧坏的(de)主要原因如(ru)下(xia)。

半封闭压缩机

1、电(dian)(dian)源电(dian)(dian)压过(guo)低:

当电(dian)(dian)(dian)(dian)(dian)源电(dian)(dian)(dian)(dian)(dian)压(ya)过低时(shi),流(liu)经电(dian)(dian)(dian)(dian)(dian)机的(de)(de)电(dian)(dian)(dian)(dian)(dian)流(liu)非常大,导致(zhi)(zhi)(zhi)热(re)继(ji)电(dian)(dian)(dian)(dian)(dian)器(qi)频繁开(kai)合,最终导致(zhi)(zhi)(zhi)触点熔化粘连,导致(zhi)(zhi)(zhi)热(re)继(ji)电(dian)(dian)(dian)(dian)(dian)器(qi)失效。在大电(dian)(dian)(dian)(dian)(dian)流(liu)的(de)(de)作用下,电(dian)(dian)(dian)(dian)(dian)机绕组绑线(xian)烧坏,电(dian)(dian)(dian)(dian)(dian)磁线(xian)外绝缘层烧坏,使部分绕组短(duan)路,造(zao)成(cheng)绕组电(dian)(dian)(dian)(dian)(dian)阻异(yi)常。供(gong)(gong)电(dian)(dian)(dian)(dian)(dian)电(dian)(dian)(dian)(dian)(dian)压(ya)低,供(gong)(gong)电(dian)(dian)(dian)(dian)(dian)能(neng)力不(bu)足,供(gong)(gong)电(dian)(dian)(dian)(dian)(dian)线(xian)路上有其他大功(gong)率电(dian)(dian)(dian)(dian)(dian)器(qi),供(gong)(gong)电(dian)(dian)(dian)(dian)(dian)线(xian)路的(de)(de)线(xian)径选择过细,或者出现(xian)故障都有可能(neng)造(zao)成(cheng)制冷压(ya)缩机的(de)(de)故障。

2、电机(ji)电源控制(zhi)电路故障:

电(dian)(dian)(dian)源开关(guan)和接(jie)(jie)触(chu)(chu)(chu)器(qi)是(shi)(shi)半封闭压(ya)缩(suo)机电(dian)(dian)(dian)机控(kong)制(zhi)电(dian)(dian)(dian)路的(de)(de)重要(yao)(yao)组成部(bu)(bu)分。选择不合理,保养不到位,能毁掉最好的(de)(de)制(zhi)冷压(ya)缩(suo)机。根据负载正确选择开关(guan)和接(jie)(jie)触(chu)(chu)(chu)器(qi)极其重要(yao)(yao)。需(xu)要(yao)(yao)强调的(de)(de)是(shi)(shi),如果接(jie)(jie)触(chu)(chu)(chu)器(qi)触(chu)(chu)(chu)头是(shi)(shi)焊接(jie)(jie)的(de)(de),所有的(de)(de)控(kong)制(zhi)(如高低(di)压(ya)控(kong)制(zhi)、油压(ya)控(kong)制(zhi)、除霜(shuang)控(kong)制(zhi)等(deng)。)依赖(lai)接(jie)(jie)触(chu)(chu)(chu)器(qi)断开压(ya)缩(suo)机电(dian)(dian)(dian)源的(de)(de)电(dian)(dian)(dian)路将(jiang)全部(bu)(bu)失(shi)效,制(zhi)冷压(ya)缩(suo)机将(jiang)处于无保护(hu)状态。所以电(dian)(dian)(dian)机烧毁时,需(xu)要(yao)(yao)检查接(jie)(jie)触(chu)(chu)(chu)器(qi),因为(wei)接(jie)(jie)触(chu)(chu)(chu)器(qi)是(shi)(shi)一(yi)个(ge)经常被遗忘的(de)(de)重要(yao)(yao)原因。

3、三相电(dian)流不(bu)平衡(heng)导致电(dian)机(ji)故障:

半封(feng)闭压缩机(ji)(ji)电(dian)压异常和缺相(xiang)很容易损坏电(dian)机(ji)(ji)。三相(xiang)电(dian)压不(bu)平(ping)(ping)衡(heng)(heng)不(bu)应超过5%,会(hui)(hui)造成(cheng)电(dian)机(ji)(ji)三相(xiang)电(dian)流(liu)不(bu)平(ping)(ping)衡(heng)(heng),其(qi)中(zhong)一相(xiang)(或(huo)两(liang)相(xiang))电(dian)流(liu)过大,使绕组先(xian)发(fa)热而击穿或(huo)烧坏,其(qi)他绕组也急剧增(zeng)加电(dian)流(liu)而烧坏。电(dian)机(ji)(ji)运行时,任意一相(xiang)电(dian)流(liu)值(zhi)和三相(xiang)电(dian)流(liu)的平(ping)(ping)均值(zhi)不(bu)得(de)超过10%。由(you)于电(dian)压不(bu)平(ping)(ping)衡(heng)(heng),不(bu)平(ping)(ping)衡(heng)(heng)的电(dian)压百(bai)分(fen)比在正常运行中(zhong)会(hui)(hui)导致4-10倍的电(dian)流(liu)不(bu)平(ping)(ping)衡(heng)(heng)。

4、异常(chang)负载和锁定转子:

半封(feng)闭压(ya)缩(suo)机(ji)电(dian)机(ji)负载(zai)包括(kuo)压(ya)缩(suo)气(qi)体所需的(de)(de)负载(zai)和(he)克服机(ji)械(xie)摩擦所需的(de)(de)负载(zai)。过大的(de)(de)压(ya)力比和(he)压(ya)力差会使压(ya)缩(suo)过程更(geng)加(jia)(jia)困难,而润(run)滑失效引起(qi)的(de)(de)摩擦增加(jia)(jia)和(he)极(ji)端情况下电(dian)机(ji)堵转会大大增加(jia)(jia)电(dian)机(ji)的(de)(de)负荷。大功率半封(feng)闭压(ya)缩(suo)机(ji)的(de)(de)电(dian)机(ji)扭矩很大,局(ju)部(bu)磨损(sun)一般不会造(zao)成(cheng)堵转,但在一定范围内,电(dian)机(ji)的(de)(de)输出功率会随着负载(zai)的(de)(de)增加(jia)(jia)而增加(jia)(jia),从而造(zao)成(cheng)更(geng)严重的(de)(de)磨损(sun),甚(shen)至造(zao)成(cheng)气(qi)缸咬死、连(lian)杆断裂等(deng)严重损(sun)坏(huai)。

以上是小编(bian)整(zheng)理的(de)关于半封闭压(ya)缩(suo)(suo)机(ji)电机(ji)故障的(de)原(yuan)因,希望大(da)家阅读本文(wen)后能(neng)对半封闭压(ya)缩(suo)(suo)机(ji)有一定的(de)了解(jie)。我厂先后研发出2、3缸(gang)沃克牌(pai)3HP—15HP半封闭制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)压(ya)缩(suo)(suo)机(ji),V型4缸(gang)六(liu)(liu)角以及(ji)大(da)四缸(gang)、大(da)六(liu)(liu)缸(gang)沃克牌(pai)3HP---60HP全系列半封闭制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)压(ya)缩(suo)(suo)机(ji);并(bing)(bing)可以组(zu)(zu)(zu)装风(feng)(feng)冷(leng)(leng)(leng)机(ji)组(zu)(zu)(zu)、水(shui)(shui)冷(leng)(leng)(leng)机(ji)组(zu)(zu)(zu)、冷(leng)(leng)(leng)水(shui)(shui)机(ji)组(zu)(zu)(zu)、并(bing)(bing)联(lian)机(ji)组(zu)(zu)(zu)。同(tong)时(shi)也(ye)批量生产(chan)风(feng)(feng)冷(leng)(leng)(leng)凝(ning)器、水(shui)(shui)冷(leng)(leng)(leng)凝(ning)器、高效型冷(leng)(leng)(leng)风(feng)(feng)机(ji)等制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)设备。有需要(yao)购(gou)买(mai)半封闭式(shi)压(ya)缩(suo)(suo)机(ji)的(de)朋(peng)友,欢迎联(lian)系我们!

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