A simulated gas source device
A gas source device and gas technology, applied in the direction of jet propulsion devices, rocket engine devices, weapon accessories, etc., can solve the problems of lower gas temperature and failure to meet the requirements of self-generated pressurization test system tests, etc.
Active Publication Date: 2017-05-31
SHANGHAI AEROSPACE SYST ENG INST
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Problems solved by technology
[0003] However, the existing known gas source device is generally a normal temperature gas tank storage device, and the gas is usually compressed air, nitrogen or helium, and the gas temperature will be greatly reduced in an approximate adiabatic process by decompression and large flow of gas.
The pressurized gas used in the above self-generated pressurization test is oxygen containing water and carbon dioxide. It is necessary to control the content ratio of water and carbon dioxide, and control the gas flow rate between 0.8 and 2.4kg / s, and keep the gas temperature at 390±40K. The existing air source device cannot meet the test requirements of the self-generated pressurized test system
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[0027] The present invention will be further described in detail below with reference to the drawings and embodiments.
[0028] See figure 1 , figure 1 It is a schematic diagram of a simulated gas source device according to an embodiment of the present invention. The simulated gas source device is mainly composed of a water injection port 1, a water quantitative filling metering pump 2, a first manual stop valve 3, a power source 4, a thermostat 5, and a temperature Sensor 6, water collecting tray 7, pressure sensor 8, safety valve 9, thermal insulation coating 10, tank body 11, pressure gauge 12, solenoid valve 13, electric pressure reducing valve 14, throttle ring 15, bleed outlet 16 , Storage tank base 17, metal steel ball 18, heat accumulator 19, electric heater 20, second manual shut-off valve 21, carbon dioxide quantitative filling flow controller 22, carbon dioxide filling port 23, oxygen filling port 24, low temperature The booster pump 25, the air-heated vaporizer 26 a...
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The invention discloses a simulation air source device which comprises a tank body, a gas exhaust device, a gas temperature maintaining device, a water and carbon dioxide content proportion control device and an oxygen inflation device. The outer portion of the tank body is provided with a heat insulation wrapping layer. The gas exhaust device comprises a pressure gauge, an electromagnetic valve, an electric regulating pressure-reducing valve, a throttling ring and a deflating outlet in sequence in the gas flowing direction. The gas temperature maintaining device comprises a power source, a temperature controller, a temperature sensor, an electric heater and a heat accumulator. The temperature sensor, the electric heater and the heat storage device are arranged in an inner cavity of the tank body. A large number of metal steel balls are arranged in the heat storage device to serve as heat storage bodies. The water and carbon dioxide content proportion control device comprises a water adding sub-device and a carbon dioxide adding sub-device. The simulation air source device solves the problem that an existing air source device cannot meet the testing requirement of a self-pressurization test system of a liquid oxygen tank of a certain type of launch vehicle, self-pressurization gas similar to an engine evaporator can be obtained, and pressurization gas with different content ratios of flow, temperature, water and carbon dioxide can also be obtained.
Description
Technical field [0001] The invention relates to a simulated air source device, in particular to a simulated air source device used for a self-generated pressurization test of a launch vehicle. Background technique [0002] A new generation of a certain type of carrier rocket liquid oxygen tank is proposed to adopt self-generating pressurization technology, that is, a stream of liquid oxygen is drawn from the engine liquid oxygen path, heated and vaporized by the engine evaporator, and then enters the liquid oxygen tank for pressurization, due to the particularity of the liquid oxygen extraction position , The liquid oxygen contains a certain amount of water and carbon dioxide, and there is a certain deviation in the flow of liquid oxygen, so the oxygen after heating and vaporization contains a certain amount of water and carbon dioxide impurity gas, and there is a certain deviation in the flow of pressurized gas; and because of the engine evaporator The heating power is constant,...
Claims
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IPC IPC(8): F42B35/00F02K9/60
Inventor 程光平张亮张浩缪五兵胡峥李程刚李军
Owner SHANGHAI AEROSPACE SYST ENG INST