Things to be aware of after the gear pump stops running
Gear pump is one of the more commonly used in hydraulic systems. Not only should there be many precautions in use, it can't be placed there after use, and it must be cleaned and maintained.Now let's talk about the things that need attention when the dual gear pump stops running. ① If it is a dual gear pump that is easy to crystallize, easy to solidify, and precipitates the medium, immediately flush the pump and pipeline with clean water to prevent blockage. ② The shutdown of the high temperature pump should be performed in accordance with the provisions of the technical documents of the equipment. After stopping, it should be turned for half a turn every 20 to 30 minutes until the temperature of the pump body drops to 50 ° C. ③ When the cryopump is stopped, when there are no special requirements, the pump should always be filled with liquid; the suction valve and discharge valve should be kept open; cryogenic pumps with double-end mechanical seals, liquid level controllers and the sealing liquid in the pump seal cavity The grouting pressure of the pump should be maintained. ④ After the centrifugal oil pump is stopped, the inlet valve of the pump should be closed. After the dual gear pump has cooled down, the valves of the auxiliary system should be closed in turn.Drain the liquid accumulated in the pump to prevent rust and frost cracking. Different types of double gear pumps should be checked according to different situations, whether they are blocked, rusted, etc., and relevant defense measures should be prepared to prepare for the next use.