Pipeline structure of fully elastic small amount of flow measuring device
A flow measurement device and flexible technology, which is applied in the field of safe operation and use of anhydrous hydrazine propellant and micro flow measurement, can solve the problems of human body injury and accumulation of propellant, and achieve good adaptability
Inactive Publication Date: 2009-08-19
BEIHANG UNIV
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Problems solved by technology
At the same time, hydrazine is a Class II highly hazardous poison, which is very harmful to the human body.
The hydrazine in the pipeline will explode under the action of electric sparks. Therefore, the hydrazine propellant supply pipeline is required to have the routine functions of propellant filling and supply, as well as the ability to blow off and clean the propellant in the pipeline. function, there are blind pipes and pipes accumulating propellant in the design of wall pipes
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[0043] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.
[0044] The invention relates to a pipeline structure of a fully elastic micro-flow measuring device, in which all pipelines and matching control valves are fixed on the bracket of the micro-flow measuring device.
[0045] The front end of the storage tank pressurization valve 1 is connected to the storage tank pressurization pipeline a2, and the rear end is connected to the storage tank pressurization pipeline b3. The storage tank pressurization pipeline b3 is connected to the four-way connector 7 of the storage tank pressurization pipeline. The other three ports of the four-way connector 7 of the booster pipeline are respectively connected to the booster pipeline c4 of the tank, the air release pipeline 8 of the tank, and the booster sensor pipeline a9 of the tank, and the four-way connector 7 of the booster pipeline of the tank The three con...
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Abstract
The invention relates to a pipeline structure of a full elasticity small flow rate measurement device, and the pipeline structure comprises a propellant injection pipeline, a propellant supply pipeline, a storage tank boost pipeline, a blowback gas pipeline and a storage tank gas discharging pipeline. The propellant injection pipeline is connected with a propellant storage tank and provided with a storage tank injection valve. The propellant supply pipeline is connected with the propellant injection pipeline and the propellant storage tank and provided with a liquid valve. One end of the storage tank boost pipeline is connected with a pressurized gas air source, the other end is connected with the propellant storage tank, and the storage tank boost pipeline is provided with a storage tank boost valve and a pressure transducer, and a storage tank boost transducer pipeline is provided with a control valve used for the storage tank boost transducer pipeline. One end of the blowback gas pipeline is connected with the external air source, the other end is connected with the storage tank injection pipeline and the blowback gas pipeline is provided with a blowback valve. One end of the storage tank gas discharging pipeline is connected with the storage tank boost pipeline and the other end is connected with a gas discharging electromagnetic pneumatic valve.
Description
Technical field: [0001] The invention relates to a pipeline structure of a fully elastic micro-flow measuring device, in particular to the technical field of safe operation and use of anhydrous hydrazine propellant and micro-flow measurement. Background technique: [0002] Liquid micro-flow measurement technology is widely used in many fields, and it is also a key and difficult technology in the development and application of certain engines in the aerospace field. [0003] Low-power arc-heating engines are widely used in tasks such as position maintenance and orbit control of geostationary satellites and low-to-medium orbit satellites. To match with N 2 h 4 For the development of propellant arc heating engines, a set of N 2 h 4 A fully elastic steady-state weighing method micro-flow measuring device for flow measurement. This set of devices can meet the requirements of N 2 h 4 It is the requirement for propellant flow measurement of 10mg / s~60mg / s propellant for low po...
Claims
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Login to View More IPC IPC(8): G01F1/76G01M15/02
Inventor 汤海滨张莘艾施陈波訾振鹏
Owner BEIHANG UNIV