无油真空泵无法正常启动的原因及解决方法

  • Article source:Industry News
  • Website editor:莱诺真空泵
  • Reading volume:
  • Publication time:2022-08-31 09:32:43

无油真空泵所能获得的极限真空为2000~4000Pa,串联大气喷射器可达270~670Pa。水环泵也可用作压缩机,称为水环式压缩机,是属于低压的压缩机,其压力范围为1~2×105Pa表压力。为达到不同产品的工艺指标、工作效率和设备工作寿命要求、不同的真空区段需要选择不同的真空系统配置。

该产品主要是有两个旋转方向相反的转子位于泵体中,由一对同步齿轮传动,对于其转子,在泵体内是互相啮合的,但具有间隙,间隙大小主要取决于液体黏度,超过一定黏度范围必须调整增大间隙。

当电机转子转动时,抽内腔的进气口一部分容量扩张,将汽体从进风口吸进,汽体历经空气滤芯,开启的防返输油泵进到腔泵。当电机转子进一步转动,叶子从吸进口将泵腔一部分分离。这些泵腔容量降低,汽体被缩小。汽体在稍高于大气压力时历经自动排气阀从泵腔排出来。

那么无油真空泵无法正常启动是什么原因呢?又该如何解决呢?

可能原因:

1、电机启动器过载保护太小或设定值太低

2、如果配置交流电机:电机的电容器损坏。

3、检查泵油的使用情况,已返油、油温太低、油已变质、使泵腔内充满泵油,观察油质是不是己经乳化(白沫)或者碳化(变黑),油的变质会影响到旋片与转子的摩擦而导致叶片卡死在泵腔内。

解决方法:

1、修理或更换电机。

2、将电机启动器过载保护的设定数据与电机铭牌的数据相对照,必要时,请校正。如果环境温度较高:可将设定值根据正常电机电流提高5%

3、泵油更换,拆开修复缸体等部件,叶片如损坏严重还需要更换泵叶片。

Article source:https://www.leynow.com.cn/news/654.html

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