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渣浆泵不出水的原因及解决方法
作者: 更新日期:2022-06-10 09:37 浏览次数:

渣浆泵不出水是渣浆泵运转中常见毛病之一

 

惹起渣浆泵不出水的缘由有很多

 

处理此问题首先要肯定渣浆泵不出水的缘由是什么

 

下面我们就对这一问题停止细致剖析

 

一、充液缺乏惹起的不出水

1、表现方式

 

电流表的电流变小

 

出口压力表无压

 

进口无真空或者极小

 

2、处理办法

 

继续向渣浆泵内充液并放气或抽真空

 

二、管路或叶轮梗塞惹起的渣浆泵不出水

1、表现方式

 

进口管路梗塞,包括底阀打不开或梗塞表现为:

 

电流表的电流比拟小

 

出口压力很小

 

但进口真空度很高

 

出口管路梗塞或者出口阀门未翻开:

 

电流表电流很小

 

出口压力很高

 

进口真空度略小

 

长时间运转后渣浆泵会发热

 

叶轮梗塞:现象同等进口管路梗塞

 

2.处理办法

 

清算管路和叶轮

 

三、吸入管路漏气或者轴封漏气

1、表现方式

 

漏气严重,电流很小,出口压力很小且动摇大

 

进口真空小动摇大

 

当关闭进口阀门,进口真空很快降落

 

2、处理办法

 

检查并消弭管路或轴封漏气

 

四、渣浆泵的转向不对

1、表现方式

 

假如泵的进口是真空:

 

在出口阀门未翻开之前,压力表有压,但很小

 

当阀门翻开后,泵出一股液体后,接着不出水

 

出口也没有压力了

 

假如泵的进口有压力:

 

渣浆泵出口有压,但压力较小

 

翻开阀门后压力疾速降落,出水量很小

 

2、处理办法

 

改动泵的旋转方向

 

五、叶轮损坏惹起的渣浆泵不出水

1、表现方式

 

泵出口有压力

 

进口有真空,但很小

 

电流不变小

 

2、处理办法

 

改换叶轮

 

六、渣浆泵发作汽蚀惹起不出水

1、表现方式

 

开泵后出水,但会逐步减小到无

 

压力开端正常,但逐步减小到无

 

2、处理办法

 

增加吸入压力或降低装置高度

 

参考文章:渣浆泵汽蚀产生的缘由

 

七、泵的最大扬程低于安装扬程

1、表现方式

 

渣浆泵出口压力很高,为最高扬程,

 

电流略低,进口真空略低

 

渣浆泵运转时间长后会发热

 

以上就是渣浆泵不出水的缘由、表现方式及处理办法

 

如遇到此类问题可依据以上内容逐一排查找出确切缘由停止维修,以到达顺利消费的目的

The failure of slurry pump to discharge water is one of the common faults in the operation of slurry pump
There are many reasons why the slurry pump does not discharge water
To solve this problem, we must first determine the reason why the slurry pump does not discharge water
Let's make a detailed analysis of this problem
1、 Water failure due to insufficient liquid filling
1. Manifestation
Current of ammeter decreases
No pressure on outlet pressure gauge
No vacuum or very small at inlet
2. Solution
Continue to fill the slurry pump with liquid and bleed or vacuumize
2、 Slurry pump does not discharge water due to blockage of pipeline or impeller
1. Manifestation
The inlet pipeline is blocked, including the bottom valve can not be opened or blocked, which shows as follows:
The current of ammeter is small
Low outlet pressure
But the imported vacuum is very high
Outlet pipeline is blocked or outlet valve is not opened:
Ammeter current is very small
High outlet pressure
Inlet vacuum is slightly small
The slurry pump will heat up after long-time operation
Impeller blockage: the phenomenon is the same as that of inlet pipeline blockage
2. solutions
Clean the pipeline and impeller
3、 Air leakage of suction pipe or shaft seal
1. Manifestation
Serious air leakage, small current, small outlet pressure and large fluctuation
Small inlet vacuum and large fluctuation
When the inlet valve is closed, the inlet vacuum drops quickly
2. Solution
Check and eliminate air leakage of pipeline or shaft seal
4、 Incorrect steering of slurry pump
1. Manifestation
If the pump inlet is vacuum:
Before the outlet valve is opened, the pressure gauge has pressure, but it is very small
When the valve is opened, a stream of liquid is pumped out, and then no water is discharged
There is no pressure at the outlet
If there is pressure at the pump inlet:
There is pressure at the outlet of the slurry pump, but the pressure is small
After opening the valve, the pressure drops rapidly and the water output is very small
2. Solution
Change the rotation direction of the pump
5、 Slurry pump does not discharge water due to impeller damage
1. Manifestation
Pressure at pump outlet
There is vacuum at the inlet, but it is very small
Constant current
2. Solution
Replace the impeller
6、 The slurry pump is subject to cavitation, resulting in no water outlet
1. Manifestation
After the pump is started, water will flow out, but it will gradually decrease to zero
The pressure starts to be normal, but gradually decreases to zero
2. Solution
Increase suction pressure or lower mounting height
Reference article: causes of cavitation of slurry pump
7、 The maximum pump head is lower than the unit head
1. Manifestation
The outlet pressure of the slurry pump is very high, which is the highest lift,
Slightly lower current, slightly lower inlet vacuum
The slurry pump will be heated after a long operation time
These are the reasons, manifestations and solutions for the slurry pump not to discharge water

 

In case of such problems, the exact causes can be found out and repaired one by one according to the above contents, so as to achieve the purpose of smooth production