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Dry vacuum pump brake, sand blasting process, the problems of large current _

by:J&T     2020-07-13
Dry vacuum pump too much electricity

1. Water supply is too big. At this point, should be adjusted according to actual situation of dry vacuum pump water supply.

2。 Inlet and exhaust distribution board of the open position is not correct, adjust the position is correct.

3。 Exhaust valve plate of the valve plate is damaged, needs to be changed in time.

4。 Scale of dry vacuum pump too much, it is necessary to regular cleaning a scrap of the vacuum pump.

5。 The impeller and the water pump body or suction exhaust disk friction distribution.

6。 Motor damage or voltage is too low.

more than dry vacuum pump is introduced the cause of the high current, and adopt corresponding solutions for different situations, to ensure that their use.

braking method of dry vacuum pump

1. The dynamic brake is composed of dynamic braking resistor. When failure, emergency stop, and the power cut off, the dry vacuum pump mechanical feed distance will shorten because of braking energy. Dynamic brake at work doesn't need power supply, and need external relay control.

2。 Regenerative braking means dry vacuum pump will be generated by the brake when to slow down or stop the energy feedback to the DC bus through the inverter circuit, and absorbed by the rc circuit. When servo system normal work, must start regenerative braking. The function in the event of a failure, emergency stop, power failure cases, such as unable to brake motor, and the system will automatically perform the work.

3。 Electromagnetic brake is lock of dry vacuum pump shaft by mechanical device. After the SV and OFF, usually start the electromagnetic brake. Otherwise, the amplifier may be overloaded. Dynamic brake in SV, usually start after power OFF or the primary loop. Otherwise it may lead to dynamic braking resistor is overheating.

for everyone to use dry vacuum pump of high efficiency and high quality, we should first understand braking method, because this is the first step in using the product. Its braking method is divided into many, each has its own advantages, we can understand.

sand blasting process of dry vacuum pump 1. After the spray dry vacuum pump and natural drying, continue to apply industrial glue on the surface of the wax models, and spraying the second layer of sand. The second sand grains larger than before, more thick, then spraying the second layer grains of sand. After the wax models should be set in the constant temperature of natural drying.

2。 Sand blasting carried out in accordance with the above methods for the third time, fourth time sandblasting, fifth sandblasting, etc. , and requirements.

( 1) According to the requirements of the pump on the surface, the volume and weight, adjust sand blasting. Typically, blasting is number 3 - 7 times.

( 2) Sandblasting sand grain size is different every time. Usually, the follow-up work procedure in the thick sand in the sand than before, and different air drying time. Usually, the complete sand wax production cycle for 3 to 4 days.

according to introducing, according to the process of dry vacuum pump sandblasting processing, not only can improve the quality and service life of water ring pump, but also can protect the appearance of the pump, so as to extend its service life. In fact, this process is to reduce the financial loss and the effective method to effective use of equipment.


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