Pump with mechanical seal

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.