Space Mechanical Rotary Pump

Abstract

Space mechanical rotor pump, the left end of the main shaft is embedded in the front flange through the left bearing, the right end of the main shaft is embedded in the middle flange through the right bearing, the right end of the main shaft is integrally connected to the inner rotor of the magnetic coupling, and the inner rotor of the magnetic coupling Sealed by a spacer, the outside of the spacer is a magnetic coupler jacket, the magnetic coupler jacket is connected to the rotating shaft of the motor, and the connection between the magnetic coupler jacket and the motor is fixed on the rear flange through a support bearing; the main shaft is located between the front flange and the middle flange. The part between the flanges is fixedly installed with the inner rotor. The outer surface of the inner rotor is wrapped with an outer cavity sleeve. Both the outer surface of the inner rotor and the inner surface of the outer cavity sleeve have spiral grooves. There are inlet joints and outlet joints arranged on the top. The two joints are located in the tangential direction of the inner rotor and are separated on both sides of the axis of the outer cavity sleeve and are close to the front flange and the middle flange respectively. After the liquid enters from the inlet, it passes through the space between the two spiral grooves. The formed space is accelerated by the inner rotor and discharged from the outlet.

Description

technical field [0001] The invention belongs to the technical field of thermal control of spacecraft, and relates to a micro mechanical pump applied in the aerospace environment. Background technique [0002] In the spacecraft thermal control two-phase fluid circuit technology, the capillary circuit technology assisted by mechanical pump is the most promising technology, which can effectively break through the problem of vapor-liquid separation in the two-phase circuit and make the two-phase circuit run successfully. . The successful application of the active temperature control technology of the mechanical pump auxiliary circuit has also opened up a new active temperature control technology for spacecraft such as deep space exploration and space attack and defense, because it has the characteristics of light system weight and high temperature control accuracy, which is more The important thing is that as long as the subcooling of the working fluid is maintained, the mechan...

AI Technical Summary

Problems solved by technology

Due to the United States' blockade of my country in terms of space micro pumps, as of now, my country has been unable to obtain technical information related to the specific structure of the pump.

[0005] China has successfully developed a space centrifugal mechanical pump for manned spaceflight. The pump adopts the structure of a traditional radial centrifugal pump, and the rotor is in the form of an impeller. 20 times, which is 200 times the required minimum flow, so it cannot meet the needs of the thermal control system of the two-phase thermal control circuit, and in the space spray cooling system, the existing space centrifugal pump can not reach the required lift

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