Double-layer pore plate type gas distributor easy to assemble

Abstract

The invention discloses a double-layer pore plate type gas distributor easy to assemble. The double-layer pore plate type gas distributor easy to assemble comprises a gas guiding column, a distributor base, a first-layer pore plate, a second-layer pore plate, an outer baffle, an inner baffle and a fixing column. The gas guiding column, the distributor base, the outer baffle and the inner baffle are all hollow cylinders, the first-layer pore plate and the second-layer pore plate are both hollow circular plates, and the fixing column is a cylinder. One end of the distributor base is provided with holes for installation of the gas guiding column and the fixing column, the other end of the distributor base is provided with grooves for installation of the first-layer pore plate and the second-layer pore plate, and the first-layer pore plate and the second-layer pore plate are both provided with small holes for homogenizing gas. The outer baffle is fixedly connected with the outer side of the second-layer pore plate, the inner baffle is fixedly connected with the inner side of the second-layer pore plate, and the outer baffle and the inner baffle are further fixedly connected with the other end of the distributor base. Through the cooperation of the distributor base, the outer baffle and the inner baffle, the number of weld joints of the gas distributor is reduced, and the problem that a traditional gas distributor has multiple weld joints is solved.

Description

technical field [0001] The invention relates to an easy-to-assemble double-layer orifice-plate gas distributor, which is especially suitable for flow control distributors and belongs to the technical field of Hall electric thruster gas homogenization. Background technique [0002] Hall thruster is currently the most popular spacecraft electric propulsion technology in the world. It mainly includes hollow cathode, discharge chamber, magnetic pole, magnetic coil, anode / gas distributor, propellant delivery pipeline and support structure; it adopts Hall propulsion Technology can increase the payload of spacecraft, reduce launch costs, and extend service life. It is an effective means to improve the efficiency and competitiveness of commercial satellites in the future. The functions and tasks that Hall propulsion technology can complete include: orbit transfer, position maintenance and off-orbit processing of synchronous communication satellites; orbit transfer, resistance compen...

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, the present invention provides an easy-to-assemble double-layer orifice gas distributor, through the cooperation of the distributor seat, the outer baffle and the inner baffle, the gas The number of welds in the distributor solves the problem of many welds in the traditional gas distributor; by installing the gas guide column, the fixed column, the first orifice plate and the second orifice plate at both ends of the distributor seat, the gas The distributor is welded and formed at one time, which makes up for the defects of many times of disassembly and assembly during the welding process of the traditional gas distributor; by setting the small holes on the first orifice plate and the second orifice plate, the thin-walled parts of the gas distributor are reduced. Welding is difficult, overcoming the problem of low welding quality of traditional gas distributors

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