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Method for cleaning electromagnetic valve after thermal condition calibration of double-component thrustor

A dual-component thruster and solenoid valve technology, applied in cleaning methods and appliances, chemical instruments and methods, etc., can solve the problems of poor channel cleaning effect, no public use of cleaning technology and literature reports, etc., to reduce the number of disassembly and assembly , Enhance international business competitiveness and reduce costs

Active Publication Date: 2014-02-19
BEIJING INST OF CONTROL ENG
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Problems solved by technology

For example, the Sixth Academy of Aerospace Science and Technology Group adopts the following cleaning steps on the 490N high-thrust engine: use potassium permanganate as the cleaning agent, use higher pressure as the gas source, and continuously clean the high-thrust engine, which is only suitable for high-thrust engines. The cleaning pipe of the engine has a large diameter and a relatively simple flow channel, but the cleaning effect on channels with a small diameter and complex flow channels is poor
[0004] At home and abroad, there is no public use and literature report on the post-heating cleaning process of the small-thrust dual-component thruster

Method used

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  • Method for cleaning electromagnetic valve after thermal condition calibration of double-component thrustor

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] Such as figure 1 It is an overall schematic diagram of a dual-component thruster, in which thrust chamber 1, fuel circuit solenoid valve 2, oxygen circuit solenoid valve 3, fuel circuit solenoid valve inlet 21, oxygen circuit solenoid valve inlet 31, thruster combustion circuit inlet 4, thruster Oxygen road inlet 5.

[0031] The cleaning method of the electromagnetic valve after the heat-marking of the dual-component thruster of the present invention comprises the following steps:

[0032] The first step is to clean the thruster as a whole; the second step is to pulse flush the thruster fuel circuit with cleaning agent at the inlet 4 of the thruster fuel circuit; the third step is to use high-purity nitrogen at the inlet 4 of the thruster fuel circuit to Pulse flushing of the fuel circuit of the thruster: Step 4, use F113 to perform pulse cleaning of the oxyge...

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Abstract

The invention discloses a method for cleaning an electromagnetic valve after thermal condition calibration of a double-component thrustor. Liquid and gas are supplied alternately, a stable-state mode and a pulse mode are switched, so that an integral thrustor body, a thrustor burning way, a thrustor oxygen way, a thrustor component and the electromagnetic valve are integrally and partially cleaned successively, simultaneously, in pulse type flushing, pulse time sequence and pulse frequency are selected reasonably, a cleaning range is expanded effectively, assembling and disassembling frequencies of the thrustor are reduced, and a thermal condition calibration flow of the thrustor is simplified. The method lays a foundation for thermal condition calibration of the double-component thrustor, and cost for ignition tests for the thrustor is lowered.

Description

technical field [0001] The invention belongs to the technical field of cleaning technology after heat marking of thruster products, and in particular relates to a cleaning method for complex flow channels of electromagnetic valves after heat marking of double-component thrusters. Background technique [0002] The post-heating cleaning of the dual-component thruster is mainly used in the cleaning of the solenoid valve of the thruster of the satellite dual-component propulsion system, the cleaning of the self-locking valve after the thermal test of the satellite dual-component propulsion system, and the cleaning of the valve parts of the rocket propulsion system. Cleaning after test run, etc. At present, in the field of cleaning after hot stamping, there are problems such as unrefined technology and non-standard technical content. [0003] Corresponding cleaning method tests have been carried out on high-thrust engines in China. For example, the Sixth Academy of Aerospace Sc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B08B7/04
Inventor 陈磊王平蔡坤刘畅张杰张榛汪凤山孙民张凤周磊吴耀武张超孙超冉鹏姜鹏
Owner BEIJING INST OF CONTROL ENG
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