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ZHUHAI WORKMATE MOTORS CO, LTD.

Tel:0756-7615608

Fax:0756-7615960

Email:info@workmate.cn

Add:9 Jinhu Road, Sanzao Town, Jinwan District, Zhuhai

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Preparations before starting the centrifugal pump

Preparations before starting the centrifugal pump

  • Categories:Company news
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  • Time of issue:2022-03-18 10:15
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(Summary description)Whether the name, model, main performance and filling quantity of lubricating oil meet the requirements of technical documents;

Preparations before starting the centrifugal pump

(Summary description)Whether the name, model, main performance and filling quantity of lubricating oil meet the requirements of technical documents;

  • Categories:Company news
  • Author:
  • Origin:
  • Time of issue:2022-03-18 10:15
  • Views:
Information

1. Preparations before start-up

a. Check before starting

1. Whether the name, model, main performance and filling quantity of lubricating oil meet the requirements of technical documents;

2. Whether the bearing lubrication system, sealing system and cooling system are in good condition, and whether the oil circuit and water circuit of the bearing are smooth;

3. Turn the rotor of the disc pump for 1 to 2 turns to check whether the rotor is rubbed or stuck;

4. Whether there are any sundries that hinder the rotation near the coupling or belt guards, etc.;

5. Whether the foundation anchor bolts of the pump, bearing seat and motor are loose;

6. The valves or auxiliary devices of the pump working system should be in the position with the least load when the pump is running, and the outlet regulating valve should be closed;

7. Jog the pump to see if the impeller steering is consistent with the design steering. If it is inconsistent, the impeller must be stopped completely, and the motor wiring can be adjusted before restarting.

b. Fill with water

Before the pump is started, the pump casing and suction pipe must be filled with water, because in the presence of air, the vacuum of the suction mouth of the pump cannot be formed and maintained.

c. Heat pump

Pumps that transport high temperature liquids, such as boiler feed pumps in power plants, must warm the pump before starting. This is because when the feed pump is started, the high-temperature feed water flows through the pump, so that the temperature of the pump body quickly rises from normal temperature to 100-200 ° C, which will cause the temperature difference between the inside and outside of the pump and between the components. Heat transfer time and measures to properly control the temperature rise will cause uneven expansion of the pump, resulting in deformation, wear, vibration and bearing shaft holding accidents of various parts of the pump body.

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