Pump industry suppliers - Pit pump use and pay attention to the point

pit pump use and pay attention to the point?

a, pit pump must be installed on the solid foundation or foundation, should not be loose.

2, before starting, suction pipe, bottom valve, pump body must be filled with water, the pressure gauge buffer top filled with oil.

turn three, with the hand, make the piston reciprocating twice, no ZuGeng and not no-load starting line insulation good, after starting to be functioning normally again gradually increase the load. Pit stop land pump for a long period of time, thoroughly clean the ministries mud sand, oil dirties, put lubricating oil is put in the crankcase, and adopt measures to rust and corrosion.

4, often test of mud sediment concentration operation shall not exceed 10%, it is strictly prohibited in the operation speed, need to change should stop the pump when shifting.

5, in operation should be paid attention to the sealing of the sealing device, if necessary. Rod and rod is often with oil lubrication.

6, in sound operation or water weight, pressure and abnormal high temperature should stop the pump when checking.

7, under normal circumstances should stop the pump when idle. Stop the pump for a long time, it must be all open hole, and loosen the cylinder head, bring the water bottom valve rod, is put in the water pump body and pipe all the mud.

eight, a few of the gears of mud pump to make the splash lubrication, reliable and should be in each class will be running a few gear speed operation respectively, time is not less than 30 seconds.

the control circuit of pit pump set

generally pit water by diving sewage pump pump, submersible sewage water pump usually controlled by ac contactor and button, button control the opening of the ac contactor, the submersible pump specialist unattended, depending on the pit water status manually start or stop the submersible pump. The submersible pump control mode single, water extraction efficiency is low, and the waste of manpower.

technical problems to be solved is to provide a ground pit submersible water pump control circuits, by using the control circuit is convenient to realize automatic control of pit submersible pump, effectively improved the extraction efficiency of pit water, and - Saves manpower and power consumption.

in order to solve the technical problems, the utility model of pit submersible sewage pump control circuit including ac contactor, submersible pump through the three-phase power supply, also includes the leakage protector, thermal relay, time relay, the key switch and the start button, ac contactor and leakage protector of contact, in turn after the concatenated respectively through the fuse, double time relay coil connected to one key switch described the third normally open contact, on the other end at the end of the earth.

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