A Helium Supply Gas Distribution System for Engine Gas Injection Test
An engine and helium technology, applied in engine testing, machine/structural component testing, instruments, etc., can solve problems such as inability to accurately control helium flow
Active Publication Date: 2020-12-11
XIAN AEROSPACE PROPULSION TESTING TECHN INST
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Problems solved by technology
[0003] The purpose of the present invention is to solve the problem that there is no helium gas distribution system in the existing engine propellant supply system, and the helium flow cannot be accurately controlled, and to provide a helium gas supply gas distribution system for engine gas injection test, which can realize the Precise control of the helium gas injection volume in the oxygen circuit and kerosene circuit, the gas injection response speed is fast, and it is not affected by the pressure change of the pump front pipe
Method used
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Embodiment Construction
[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.
[0021] like figure 1 A helium supply gas distribution system for an engine gas injection test is shown, including a plurality of helium gas cylinders 1, a gas manifold 2, a liquid oxygen gas distribution system 3 and a kerosene gas distribution system 4; the outlet of the helium gas cylinder 1 passes through a shut-off valve 5 is connected to the gas collecting pipe 2; the liquid oxygen gas distribution system 3 and the kerosene gas distribution system 4 are both connected to the gas collecting pipe 2, and the liquid oxygen gas distribution system 3 and the kerosene gas distribution system 4 are arranged on the helium gas outlet pipe in sequence The cut-off valve 7, filter 6, pressure reducer 8, solenoid valve one 9, sonic orifice plate 10 and solenoid valve two 11.
[0022] The present invention is also provided with a purge v...
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The invention specifically relates to an engine gas injection test helium supply gas distribution system, and aims to solve the problems that an existing engine propellant supply system has no heliumgas distribution system and cannot accurately control the helium flow; the gas distribution system comprises a plurality of helium bottles, a gas collecting tube, a liquid oxygen gas distribution system and a kerosene gas distribution system; the exit of the helium bottle is connected with the gas collecting tube via a stop valve; the liquid oxygen gas distribution system and the kerosene gas distribution system are respectively connected with the gas collecting tube, and respectively comprises a stop valve, a filter, a decompressor, a solenoid valve1, a sound velocity orifice plate and a solenoid valve 2 arranged on a helium outlet duct in sequence. The system can accurately control the helium injection amount in a liquid oxygen path and a kerosene path, is fast in gas injection responsespeed, and cannot be affected by pre-pump tube pressure changes.
Description
technical field [0001] The invention specifically relates to an engine gas injection test helium supply gas distribution system. Background technique [0002] There is a large pulsation in the existing liquid oxygen kerosene engine propellant supply system. It is known through experiments that injecting a small amount of helium can obviously suppress this pulsation; however, there is no The helium gas distribution system cannot precisely control the flow of helium gas. During the gas distribution process, if too much helium is injected, the turbo pump will have the risk of cavitation; if too little helium is injected, the helium flow cannot be realized The inhibitory effect of gas on pulsation. Therefore, in order to accurately control the flow of helium, it is necessary to establish a gas distribution system that can supply helium accurately and quickly. Contents of the invention [0003] The purpose of the present invention is to solve the problem that there is no heli...
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IPC IPC(8): G01M15/02
CPCG01M15/02
Inventor 向民高强孙乐肖彬
Owner XIAN AEROSPACE PROPULSION TESTING TECHN INST