Submersible Sewage Pumps Manufacturers

Long-term overload operation of the engine and late fuel supply time, etc.2020-03-30The electric diaphragm pump is driven by a cycloid pinwheel reducer, and the double diaphragm is driven to reciprocate through the crankshaft slider mechanism, so that the volume of the working chamber changes alternately so as to continuously suck and discharge the liquid. After zui, check whether the exhaust valve of the radiator cover is invalid.

The electric diaphragm pump cannot start or moves slowly. 1. Suddenly high water temperature. At this time, pay Submersible Sewage Pumps Manufacturers attention to check whether the plane of the body and the joint surface of the cylinder head are seriously warped and deformed. If the liquid delivered does not match the material of the valve ball. If it is normal, check whether the radiator outlet pipe is collapsed, whether the inner hole is delamination and blockage, find out the cause and eliminate it.　　 If it is not the problem of cooling water leakage, the failure should be analyzed and eliminated in two cases. If it is not for the above reasons, it may be that the cooling system has too much scale and the water channel is not smooth. The thermostat is damaged in the closed position of the main valve; 　　

8. Please replace it with a new product. The water pump is damaged, the fan blades are reversed or deformed, and the wind ring is damaged; 　　7. The radiator guard net or the radiator core air passage is blocked by debris, resulting in poor heat dissipation; 　　5. 1. DBY stainless steel The electric diaphragm pump is suitable for low pressure, that is, where the outlet pressure is ;3kgf/cm2. Check the spindle and 'O' ring for scratches, abrasions and flattening marks, and replace them if they are damaged.

Please check whether the diaphragm is broken. If the thermostat is normal, it means that the diaphragm pump is damaged, and the water pump should be checked and repaired carefully. If the air volume is insufficient, the angle of the fan blades should be adjusted, and the blade head should be bent or changed. 3. For the phenomenon of excessively high temperature that does not appear suddenly, increase the engine speed to observe whether the water filler is turning over, and at the same time, pay attention to whether it is a large amount or a small amount. 

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China Deep Well Pumps Manufacturers

The intersection of the pump characteristic curve Q-H and the pipeline characteristic curve Q;h is the limit operating point of the pump when the valve is fully opened. Frequency conversion speed regulation The deviation of the working condition point from the high-efficiency zone is the basic condition for the pump to need speed regulation.

2. This method is easy to operate, continuous in flow, and can be adjusted between flow and zero at will, and no additional investment is required, and it is applicable to a wide range of occasions. When the valve is fully closed, it is equivalent to infinite resistance and zero flow.

Obviously, compared with valve throttling, the energy saving effect of frequency conversion speed regulation is very prominent, and the working efficiency of horizontal multistage centrifugal pumps is higher. When the valve is closed, the local resistance of the pipeline increases, the pump operating point moves to the left, and the corresponding flow decreases. It can be seen that when the valve is closed to control the flow, the water supply capacity of the multi-stage centrifugal pump itself remains unchanged, the head characteristics remain unchanged, and the pipe resistance characteristics will change with the change of the valve opening. At this time, the pipeline characteristic curve coincides with the ordinate. , Thereby eliminating the destructive water hammer effect to a large extent, greatly extending the life of the pump and piping system..

The simple way to change the flow rate of a centrifugal pump by valve throttling is to adjust the opening of the pump outlet valve, while the speed of the horizontal multistage centrifugal pump remains unchanged (generally the rated speed), which is essentially to change the pipeline characteristics The position of the curve changes the working point China Deep Well Pumps Manufacturers of the pump. When the rotation speed of the multistage centrifugal pump changes, the valve opening remains unchanged, the pipeline system characteristics remain unchanged, and the water supply capacity and head characteristics change accordingly

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