Air supply system and air supply method for cold-state commissioning of attitude-orbit control engine

Abstract

The invention discloses an air supply system for cold-state debugging of an attitude-orbit control engine, which is characterized in that it includes an air source system, a high-pressure gas cylinder group, and a gas distribution console; the high-pressure gas cylinder group is used to store compressed air, and the The busbar connects the air source system with five air supply branches. Four branches can provide air sources for cold debugging of four engines at the same time, and the other branch serves as a flow supplement for the four output branches. The additional two branches are control air sources, one is to provide control air source for the pilot pressure reducing valve, and the other is to control the pneumatic regulating valve and pneumatic ball valve, which is convenient for precise flow control of the air supply branch and ensures the flow demand of the air supply branch. The invention can not only meet the requirement of cold-state test of a single engine, but also realize the requirement of four engines to perform cold-state debugging on the ground at the same time, greatly improving the test efficiency and reducing the test cost.

Description

technical field [0001] The invention belongs to the field of engine ground tests, and in particular relates to an air supply system and an air supply method for cold-state debugging of an attitude-orbit control engine. Background technique [0002] The solid attitude control engine system has the characteristics of few components, simple structure, low cost, easy production, use, long-term storage, and convenient maintenance. [0003] During the development of the attitude-orbit control engine, the large-flow air supply system mainly provides compressed air with a certain flow rate and pressure for the cold-state test on the ground of the engine. As a power source, various cold-state tests are performed on the engine. [0004] For attitude-orbit control engines with relatively high thrust, several air paths are often connected in parallel and finally converged to supply air. The operation process is cumbersome, the pressure build-up is unstable, and the flow rate is difficul...

AI Technical Summary

Problems solved by technology

The invention explains the air intake mode of the air supply system through the system process schematic diagram. Although the large flow control requirement is realized, the working pressure is too low, and the maximum exhaust pressure is 0.75MPa, which is only suitable for industrial production. Air source requirements, as well as low-thrust test requirements in engine ground tests, are far from being able to meet the high-thrust engine test requirements

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