Hydrogen-peroxide-assisted ignition device
A technology of hydrogen peroxide and assisted ignition, which is applied in the direction of rocket engine devices, jet propulsion devices, machines/engines, etc., and can solve problems such as aircraft crashes, turbojet engines with insufficient power, and difficulties in meeting high-efficiency combustion of turbojet engines.
Inactive Publication Date: 2014-08-20
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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And when the airborne missile is projected at high altitude, because the high-altitude ambient air is thin and oxygen is insufficient, at this time, if the high-speed motor at the front end of the turbojet engine is also used to drive the compressor to rotate to provide oxygen for the turbojet engine to burn, the speed of the compressor reaches normal operation. Before the rotation speed, the amount of oxygen produced is generally difficult to meet the high-efficiency combustion requirements of the turbojet engine, which will lead to insufficient power of the turbojet engine and serious accidents such as aircraft crashes.
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[0019] The preferred embodiments of the invention will be further described in detail below.
[0020] In some embodiments, when the turbojet engine starts, the hydrogen peroxide auxiliary ignition device first makes hydrogen peroxide (high test peroxide, HTP for short) pass through a catalytic device containing a hydrogen peroxide catalyst A violent decomposition reaction occurs, and a high-temperature and high-pressure mixture composed of water vapor and oxygen is generated and introduced into the combustion chamber of the turbojet engine. After delaying the set time, such as 1-2 seconds, the fuel supply system starts. When the atomized fuel such as mineral oil meets the high-temperature decomposition gas of high-concentration hydrogen peroxide, it burns rapidly and releases a large amount of energy to drive The turbojet engine works and outputs power, and the turbojet engine has entered a normal working condition with a normal rotating speed. After the turbojet engine compl...
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The invention discloses a hydrogen-peroxide-assisted ignition device which comprises a hydrogen peroxide storage container, a hydrogen peroxide catalytic device and a hydrogen peroxide control valve. The hydrogen peroxide storage container is communicated with a combustion chamber of a turbojet engine through a hydrogen peroxide pipeline. The hydrogen peroxide control valve and the hydrogen peroxide catalytic device are arranged on the hydrogen peroxide pipeline. The hydrogen peroxide catalytic device is used for catalyzing hydrogen peroxide to obtain oxygen and water. When the turbojet engine is ignited, the hydrogen peroxide control valve is opened. The hydrogen-peroxide-assisted ignition device solves the difficult problem that the turbojet engine is hard to ignite rapidly in the oxygen-deprived high-altitude environment, and is particularly suitable for the turbojet engine which drives airborne short-range missiles, training drones and the like to work in the high-altitude environment and has a high requirement for rapid startup.
Description
【Technical field】 [0001] The invention relates to an ignition device for a turbojet engine, in particular to a hydrogen peroxide auxiliary ignition device. 【Background technique】 [0002] The turbojet engine is an engine that relies entirely on gas jets to generate thrust. The turbojet engine has the advantages of high thrust-to-weight ratio, simple structure, and high energy density. It is often used as a power device for missiles and target drones. [0003] Missiles and target drones play an important role in the modern military field. Missiles and target drones have high requirements for the rapid start performance of the engine. Usually, the turbojet engine is started by relying on the high-speed motor at the front end of the turbojet engine (for example, the speed is about 18,000rpm) to drive the turbojet engine turbine shaft and the compressor to rotate. In an environment with high oxygen concentration, the compressor at this speed will supply Oxygen can meet the dema...
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Inventor 夏必忠任世远田勇
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV