Pump station pump system high-pressure water lubricating device based on rotating speed

Abstract

The invention provides a pump station pump system high-pressure water lubrication device based on rotating speed, which is characterized by comprising a pump body, a water lubrication guide bearing, an auxiliary pump, a water inlet pipe B, a water outlet pipe and a joint, one end of the water inlet pipe B is placed in a water tank, and the other end of the water inlet pipe B is connected with the input end of the auxiliary pump; the output end of the auxiliary pump is connected with one end of a water outlet pipe, and the other end of the water outlet pipe is connected with a plurality of water guide pipes through joints; a plurality of throttling holes for injecting high-pressure water into the water-lubricated guide bearing are formed in a shaft body of the water-lubricated guide bearing; the plurality of water guide pipes are respectively and correspondingly connected with the throttling holes, and the water-lubricated guide bearing is sleeved on a shaft neck of a pump shaft of the pump body. The device can effectively prevent frictional wear between the journal and the bearing caused by too small dynamic pressure supporting force of the bearing at low rotating speed of the journal, prolongs the service life of the shaft and the bearing, guarantees the operation safety of a unit, and has the advantages of long service life, convenience in maintenance, energy conservation and environmental protection.

Description

technical field [0001] The invention relates to the field of hydraulic machinery in water conservancy projects, in particular to a high-pressure water lubricating device for a pumping station pump system based on rotational speed. Background technique [0002] In the pumping system of large pumping stations in water conservancy projects, bearings are one of the key components of mechanical equipment, and one of the important factors to ensure the normal operation and long service life of the bearings is to ensure that the bearings are well lubricated. Common sliding bearing lubrication methods include dynamic pressure lubrication or static pressure lubrication. However, in the start-up stage of large pumping stations and low speed conditions, due to insufficient journal speed and low viscosity of the lubricating medium, it is difficult for the guide bearing to generate effective dynamic pressure support force. , resulting in eccentric rotation of the journal and friction and...

AI Technical Summary

Problems solved by technology

Common sliding bearing lubrication methods include dynamic pressure lubrication or static pressure lubrication. However, in the start-up stage of large pumping stations and low speed conditions, due to insufficient journal speed and low viscosity of the lubricating medium, it is difficult for the guide bearing to generate effective dynamic pressure support force. , resulting in eccentric rotation of the journal and friction and wear of the bearing, which greatly shortens the service life of the bearing and journal

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