A Method for Determining the On-orbit Working Times of a Pressure Solenoid Valve
A determination method and solenoid valve technology, applied in the direction of measuring fluid pressure, valve devices, instruments, etc., can solve the problems of heavy workload, large evaluation error, and lack of accuracy, so as to improve accuracy, improve reliability, and avoid switching The effect of short life
Active Publication Date: 2018-11-23
BEIJING INST OF CONTROL ENG
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Problems solved by technology
In the design of the current electric propulsion storage and supply system, the estimation of the switching times of the pressure control solenoid valve is either obtained by complex calculations (the evaluation of the working times is more accurate, but the workload is heavy), or obtained by simple approximate calculations ( The evaluation error of the number of work is relatively large), or obtained through engineering application experience (without accuracy), there is no time-saving and labor-saving method with more accurate estimation
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[0027] The basic idea of the present invention is to propose a method for determining the number of working times of a pressure solenoid valve, which divides the gas pressure in the high-pressure gas source (6) into different pressure values according to a certain gradient from the pressure at the beginning of life to the pressure at the end of life , under the divided pressure value, the number of times the pressure control solenoid valve (1) is opened in one pressure cycle, and the total working cycle of the pressure control solenoid valve (1) is calculated according to the gas mass consumed between two adjacent pressure values, thus The number of openings of the pressure control solenoid valve (1) is accurately evaluated, which obviously improves the efficiency and accuracy of evaluating the number of times the pressure solenoid valve works. By accurately determining the switch times of the pressure control solenoid valve, the reliability of the pressure control solenoid...
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The invention provides a determining method for the number of the on-orbit working times of a pressure electromagnetic valve. The determining method comprises the steps that the gas pressure in a high-pressure gas source (6) is divided into different pressure values from the life beginning pressure to the life end pressure according to a certain gradient; under the divided pressure values, the number of the starting times of the pressure control electromagnetic valve (1) in a pressure cycle are obtained; and according to the gas mass consumed between every two adjacent pressure values, the total working period of the pressure control electromagnetic valve (1) is calculated, and therefore the number of the starting times of the pressure control electromagnetic valve (1) is precisely evaluated, evaluation efficiency of the number of the working times of the pressure electromagnetic valve is remarkable improved, and the accuracy rate of the number of the working times of the pressure electromagnetic valve is remarkable increased. Through accurate determination of the number of the opening and closing times of the pressure control electromagnetic valve, the on-orbit use reliability of the pressure control electromagnetic valve is greatly improved, and the risk of an early failure of a satellite caused by the insufficient service life of the pressure control electromagnetic valve when the satellite is on an orbit is avoided.
Description
technical field [0001] The invention relates to a method for determining the working times of a pressure solenoid valve, which is suitable for evaluating the working times of the pressure solenoid valve in an electronic decompression system with the pressure solenoid valve as the core, and is especially suitable for aerospace electric propulsion storage and supply systems Evaluation of the number of on-orbit operations of the pressure control solenoid valves used. Background technique [0002] In my country's current satellite electric propulsion system, the electronic decompression system with the pressure control solenoid valve as the core is generally used to complete the decompression output of high-pressure gas. During the entire working life of the satellite, the pressure control solenoid valve needs to switch dozens of times Up to millions of times, therefore, whether the switch life of the pressure control solenoid valve can meet the requirements has become a key fact...
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IPC IPC(8): F16K37/00G01L11/00
CPCF16K37/0041G01L11/00
Inventor 刘国西武葱茏孙水生高俊于洋宋飞汤章阳陈涛李宗良丁凤林周成王戈
Owner BEIJING INST OF CONTROL ENG