A device and method for centrally distributed plasma cracking and activation oil replenishment

Abstract

The invention relates to a central distribution plasma cracking activation oil supplement device and method. The device comprises a pre-combustion cracking chamber and a plasma regulation and controlchamber, wherein the pre-combustion cracking chamber is through at both ends, the plasma regulation and control chamber is connected with one end of the pre-combustion cracking chamber, an oil supplement spray injecting nozzle is arranged in the pre-combustion cracking chamber, the oil supplement spray injection nozzle communicates with an oil supply device, and a discharge structure is arranged at a center shaft of the plasma regulation and control chamber. According to the device and method, a small-molecule gaseous fuel formed after pre-combustion cracking and plasma collaborative crackinghas high reaction activity with active groups, therefore when the cracked small-molecule fuel and the active groups are introduced into a rotary detonation engine, the detonation energy can be remarkably reduced, the detonation time can be remarkably shortened, the detonation frequency can be remarkably improved, so that the purpose of realizing liquid fuel-air detonation is achieved.

Description

technical field [0001] The invention relates to the technical field of aero-engines, in particular to a center-distributed plasma cracking activation refueling device and method. Background technique [0002] With the rapid development of the aerospace industry, the demand for high-performance propulsion and power systems is increasing, and the performance indicators of the propulsion and power systems are also related to the design parameters of the aircraft. In order to improve the performance of the propulsion system, the use of efficient combustion organization and energy utilization has become an important means of research. Conventional power systems, such as turbine engines and rocket engines, all use isobaric combustion, and the cycle efficiency is low. In addition to deflagration, the combustion method also has an approximately constant volume detonation combustion method. Studies have shown that the thermal cycle efficiency of detonation combustion is high, the e...

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Problems solved by technology

[0003] However, kerosene-air detonation has always been the core technology and international problem of rotary detonation engines. The direct detonation energy of kerosene-air mixture is very large and difficult to realize.

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