A device for detonating high-frequency detonation waves at short distances and its control method
A control method and detonation wave technology, applied in jet propulsion devices, intermittent jet devices, rocket engine devices, etc., to achieve the effects of simplifying structure, increasing thrust and prolonging service life
Active Publication Date: 2016-06-08
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology
[0003] Although PDE has great potential advantages over existing propulsion systems, there are many challenges and problems to realize these potential advantages
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Embodiment 1
[0017] Example 1 as figure 1As shown, check the airtightness of the pipeline and the integrity of the device. After confirming that there is no fault, open the shut-off valve (1-2) behind the high-pressure gas cylinder (1-1) and the high-pressure gas cylinder (2-1). Valve (2-2); the fresh combustible gas mixture at a certain pressure is supplied from the high-pressure gas cylinder, and passes through the stop valve, filter, gas source pressure gauge, pressure reducer, supply pressure gauge, throttle valve and electric control valve in turn, from The air inlet (inlet) of the resonant cavity enters the cavity; read the readings of (1-41) and pressure gauge (2-41), and adjust the pressure reducer (1-5) and pressure reducer after confirming that the air source pressure is normal (2-5), referring to the readings of pressure gauge (1-42) and pressure gauge (2-42), adjust the supply pressure of fuel and oxidant to an appropriate range (0.5-1.5MPa); adjust the throttle valve (1 -6), ...
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The invention provides a device with short-distance detonation and high-frequency detonation waves and a control method thereof. The device and the control method thereof comprise a fuel and antioxidant supply system, a resonant cavity device and the control method, wherein the fuel and antioxidant supply system comprises a high-pressure cylinder, a stop valve, a filter, a pressure meter, a decompressor, a throttle valve and an electric control valve; a resonant cavity is a circular tubular device of which one end is sealed, and a spark plug mounting hole, a pressure measuring hole and an air inlet hole are formed in a cavity body. Through controlling of the opening and the closing of the decompressor and the throttle valve and the structure of the cavity body of the resonant cavity, the fuel and antioxidant supply pressure, the equivalence ratio, filled positions and filled angles are controlled within proper ranges, and the high-frequency detonation wave can be obtained in a shorter distance in the resonant cavity. The device with short-distance detonation and high-frequency detonation wave and the control method thereof, provided by the invention, have important significance for the engineering application of a pulse detonation engine, the working frequency of the engine can be effectively improved, further the pushing force of the engine is enlarged, and at the same time, the length of the engine can be shortened.
Description
technical field [0001] The invention relates to the technical field of pulse detonation engines, and relates to a short-distance detonation high-frequency detonation wave device and a control method thereof. Background technique [0002] Pulse Detonation Engine (PDE) is a new concept engine that uses intermittent detonation waves to generate thrust. Pulse detonation engines can be divided into air-breathing pulse detonation engines and rocket-type pulse detonation engines according to whether the oxidant is present. Due to the potential advantages of PDE, such as high thermal efficiency, simple structure, and light weight, many countries have actively carried out related research in recent years. [0003] Although PDEs have great potential advantages over existing propulsion systems, there are still many challenges and problems to realize these potential advantages. One of the key problems is how to realize the high-frequency operation of PDE. Raising the operating freque...
Claims
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IPC IPC(8): F02K7/04F02K9/44F02K9/62F02K9/56
Inventor 范玮张启斌王可鲁唯
Owner NORTHWESTERN POLYTECHNICAL UNIV