DC permanent magnet self-priming compound canned pump with gas-liquid mixing chamber

Abstract

The invention discloses a DC permanent magnet self-priming compound shielded pump with a gas-liquid mixing chamber. The pump inlet, gas-liquid mixing chamber, centrifugal end, buffer pressurization chamber, gas-liquid separation chamber and pump outlet in the present invention, the pump inlet is connected to the inlet of the gas-liquid mixing chamber, the outlet of the gas-liquid mixing chamber is connected to the inlet of the centrifugal end, and the centrifugal end The outlet is connected to the inlet of the buffer booster chamber, the outlet of the buffer booster chamber is connected to the gas-liquid separation chamber, and the gas-liquid separation chamber is connected to the pump outlet; the buffer booster chamber is used to quickly decelerate the high-speed pressurized fluid at the outlet of the centrifugal end And pressurize; in the exhaust self-priming stage, reduce the flow rate of the gas-liquid mixed fluid while reducing bubble breakage; in the non-exhaust stage, reduce the flow resistance and reduce the pressure loss while realizing the buffer pressurization of the outlet fluid of the centrifugal end. The invention adopts a DC permanent magnet motor combined with a gas-liquid mixing chamber and a shielded pump, so that the shielded pump has the characteristics of strong self-priming and good hydraulic characteristics, and the spatial position and internal structure of the buffer booster chamber are skillfully set to effectively solve the problem of compound shielding at high speeds. The broken bubbles in the pump seriously lead to the technical problem of difficult gas-liquid separation.

Description

technical field [0001] The invention relates to a self-priming compound canned pump, in particular to a DC permanent magnet self-priming compound canned pump with a gas-liquid mixing chamber, which belongs to the field of fluid machinery. Background technique [0002] As we all know, the canned pump is a fully static sealed structure, no risk of leakage, high reliability pump, its volume can be very small, and has the advantage of super quiet, widely used in many fields such as chemical industry, civil water supply and drainage, household appliances, etc. , especially in the transportation of precious, flammable, explosive, radioactive and corrosive fluid media, which play a key technical support role. Recently, there is a huge demand for wall-hung boilers and water heaters. The output value of these two fields in China is not fully counted. Has exceeded 2 billion. The canned pump has a unique structure, which can seal the motor and the pump body in a certain canned pump pu...

AI Technical Summary

Problems solved by technology

[0004] In view of the problems that most of the existing canned pumps do not have self-priming or have weak suction and limited energy efficiency, the purpose of the present invention is to provide a pump with self-priming, outstanding performance in flow rate, head, suction, etc., strong safety, and compact structure. DC permanent magnet self-priming compound canned pump

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