Pump with mechanical seal

Abstract

The invention provides a pump with a mechanical seal, and belongs to the technical field of water pumps. The problems that according to existing pumps, the service life is short, and the dry frictionof mechanical seals is prone to occurring are solved. The pump with the mechanical seal comprises a connecting seat and an oil cylinder cover, wherein the connecting seat is arranged on a rotating shaft of a motor in a sleeving mode and is used for connecting the motor and a pump body, and the oil cylinder cover is arranged between the connecting seat and the pump body and is arranged on the rotating shaft of the motor in a sleeving mode; the mechanical seal arranged on the rotating shaft of the motor in a sleeving mode is arranged between the connecting seat and the oil cylinder cover; an oilstorage chamber is formed between the connecting seat and the oil cylinder cover; a part of the mechanical seal is positioned in the oil storage chamber; the oil storage chamber is internally provided with mechanical oil in contact with the mechanical seal; and an oil injection hole with the inner end communicating with the oil storage chamber is formed in the connecting seat. The pump with the mechanical seal has the advantages that the lubrication and cooling effects on the mechanical seal are good, and the service life is long.

Description

technical field [0001] The invention belongs to the technical field of water pumps and relates to a pump with a mechanical seal. Background technique [0002] The water pump is a machine that converts the mechanical energy of the prime mover into the energy of pumping liquid. The prime mover drives the impeller to rotate through the pump shaft to generate centrifugal force, and does work on the liquid to increase its energy. Under the action of centrifugal force, the liquid is thrown to the outlet of the impeller along the blade flow path. Existing water pumps mainly include a pump body, a motor located on the top of the pump body, and an impeller driven by the motor located in the pump body. A mechanical seal is provided between the pump body and the motor shaft to protect the motor. Under long-term use, due to the loss of meson lubrication and cooling of the mechanical seal, the friction temperature of the sealing surface rises rapidly, causing the mechanical seal to enter...

AI Technical Summary

Problems solved by technology

Under long-term use, due to the loss of meson lubrication and cooling of the mechanical seal, the friction temperature of the sealing surface rises rapidly, causing the mechanical seal to enter a dry friction state, which is likely to cause damage and failure of the sealing surface, greatly reducing the service life and reliability of the pump. sex

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