Split type jetting device and jetting method capable of conducting multiple jetting

Abstract

The invention relates to a split type jetting device and a jetting method capable of conducting multiple jetting and belongs to the technical field of jetting. The device comprises a jetting tank, a jetting tank piston, a nozzle, a supply tank, a supply tank piston, a spring and at least two self-pressurization gas generators. The jetting tank piston is located in the jetting tank and forms dynamic sealing with the jetting tank. The nozzle communicates with or is isolated from the first end of the jetting tank through a first switch valve, and the at least two self-pressurization gas generators communicate with the second end of the jetting tank. The supply tank piston is located in the supply tank and forms dynamic sealing with the supply tank. The first end of the supply tank communicates with or is isolated from the first end of the jetting tank through a first pipeline with a second switch valve, and the second end of the supply tank communicates with or is isolated from the secondend of the jetting tank through a second pipeline with a third switch valve. One end of the spring is connected with the supply tank piston, and the other end of the spring is connected with the second end of the supply tank. Through the split type jetting device and the jetting method capable of conducting multiple jetting, at least two times of jetting can be achieved, and the problem that faults caused by single jetting cannot be remedied is solved.

Description

technical field [0001] The invention relates to a split jet device and a jet method capable of multiple injections, belonging to the technical field of jets. Background technique [0002] With the development of spacecraft on-orbit service technology, on-orbit assembly and on-orbit construction will become a reality. On-orbit assembly and on-orbit construction of spacecraft have requirements for temperature control and environmental protection on the outer surface. Therefore, there is a need for a jet device capable of thermally controlling or spraying protective liquid paint on the outer surface of a spacecraft in orbit to form a protective layer. [0003] At present, the jet device that can be used for on-orbit injection includes a jet tank and a self-pressurized gas generator, and the gas generated by the self-pressurized gas generator pushes the liquid paint in the jet tank to be sprayed onto the surface of the spacecraft. [0004] The existing jet device can only spra...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, the present invention provides a split-type jet device and a jet method capable of multiple injections, the present invention can realize at least two injections, avoiding irreparable injection errors problems while increasing the spray area to ensure complete coverage of the coating target

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