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Multitube parallel pulse detonation combustion chamber and ignition detonation method thereof

A technology of pulse detonation and detonation chamber, applied in the field of combustion chamber, can solve the problems of large total pressure loss, inconvenient transplantation, large deflection angle, etc., and achieve the effect of system simplification

Inactive Publication Date: 2012-01-11
JIANGSU TIANYING ENVIRONMENTAL PROTECTION ENERGY COMPLETE EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the deficiencies of the prior art, such as long jet propagation tubes or dispersed entrance points of multi-tube detonation chambers, excessive deflection angles between the entrance direction of each detonation chamber and the axis of the engine, large total pressure loss, and inconvenient transplantation, the present invention proposes a A kind of multi-tube parallel pulse detonation combustion chamber and its ignition and detonation method, based on which can solve the above shortcomings, so that it is more convenient to replace the main combustion chamber and afterburner of the existing gas turbine with the pulse detonation combustion chamber

Method used

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  • Multitube parallel pulse detonation combustion chamber and ignition detonation method thereof
  • Multitube parallel pulse detonation combustion chamber and ignition detonation method thereof
  • Multitube parallel pulse detonation combustion chamber and ignition detonation method thereof

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Embodiment 1

[0021]Embodiment 1: Referring to FIG. 3 , it includes a start-up detonation device 6 and six parallel detonation chambers 2, and the parallel detonation chambers 2 are connected by jet propagation pipes 8 to form six parallel pulse detonation combustion chambers distributed around the circumference, each The detonation chamber 2 includes a detonation chamber inlet 1, a detonation chamber outlet 3 and a jet propagation pipe 8, and the jet propagation pipe includes the detonation jet outlet 5 of the upper detonation chamber connected together and the detonation jet outlet 5 of the lower detonation chamber. The jet inlet 4; the detonation chamber inlet 1 and the detonation chamber outlet 3 are located at both ends of the detonation chamber 2, and the detonation chamber inlet 1 is at the most upstream; the detonation jet inlet 4 and the detonation jet outlet 5 are located at both ends of the detonation chamber 2, according to The relative positions of the detonation jet inlet 4 and...

Embodiment 2

[0022] Embodiment 2: refer to Figure 4 , including six starting detonating devices 6 and thirty-six parallel detonation chambers 2 uniformly distributed along the direction of the incoming flow, firstly divide it into six fans along the direction of the incoming flow as shown in the figure, each fan Contains six parallel detonation chambers, and finally divides the thirty-six detonation chambers into six groups with the same arrangement along the incoming flow direction of the detonation combustion chamber. The groups are independent of each other and have no connection relationship. Each group contains six detonation chambers. room. For each group, the parallel detonation chambers 2 are connected by a jet propagation pipe 8, each detonation chamber 2 includes a detonation chamber inlet 1, a detonation chamber outlet 3 and a jet propagation pipe 8, and the jet propagation pipes include upper The detonation jet outlet 5 of the first detonation chamber and the detonation jet i...

Embodiment 3

[0023] Embodiment 3: refer to Figure 5 , including three starting detonation devices and twenty-four parallel detonation chambers distributed circularly along the incoming flow direction, each detonation chamber each detonation chamber 2 includes a detonation chamber inlet 1, a detonation chamber outlet 3 and The jet propagation pipe 8, the jet propagation pipe 8 includes the detonation jet outlet 5 of the upper stage detonation chamber and the detonation jet inlet 4 of the next stage detonation chamber connected together; the detonation chamber inlet 1 and the detonation chamber outlet 3 are located at The two ends of the detonation chamber 2, the detonation chamber inlet 1 is at the most upstream; the detonation jet inlet 4 and the detonation jet outlet 5 are located at the two ends of the detonation chamber 2, according to the detonation jet inlet 4 and the detonation jet outlet 5 of each detonation chamber 2 Depending on the relative position of the detonation chamber, th...

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Abstract

The invention discloses a multitube parallel pulse detonation combustion chamber and an ignition detonation method thereof. The multitube parallel pulse detonation combustion chamber comprises an ignition detonation device and multitube axis parallel detonation combustion chambers, wherein the detonation chamber inlets and the detonation chamber outlets of the detonation combustion chambers are respectively on the same plane; each detonation chamber comprises the detonation chamber inlet, detonation jet flow inlets, a detonation jet flow outlet and the detonation chamber outlet; every two adjacent detonation chamber detonation jet flow inlets are respectively arranged on the upstream or the downstream of the detonation chamber and are connected through jet flow transmission tubes with thesame length; and the ignition detonation device is installed on any one head detonation jet flow ignition detonation chamber. When working, the ignition detonation device works to ignite combustible mixed gas in one detonation chamber and transfer to the next detonation chamber step by step to form circulation. The invention simplifies the accessory system of the pulse detonation combustion chamber, can be directly used for the existing common multitube parallel pulse detonation combustion chambers under the situation of not changing the integral structure of an engine, and solves the problemof ignition detonation of the existing multitube pulse detonation combustion chambers.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a combustion chamber of a pulse detonation engine and an ignition and detonation method thereof. Background technique [0002] The discovery of detonation waves can be traced back to the end of the 18th century. Compared with deflagration waves, the propagation speed of detonation waves can reach several kilometers per second, and at the same time, extremely high gas pressure (greater than 15 to 55 atmospheres) and gas temperature (greater than 2800K), according to the traditional CJ ​​theory, the CJ knock point is the minimum point of entropy increase, which means that the propulsion system based on detonation combustion will have an advantage in thermal cycle efficiency, so since the 1940s, Various institutions are competing to study detonation engines. In the exploration and research stage of more than 60 years, various types of detonation engines have appeared. The current re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K7/02F02K9/62F02K9/95
Inventor 邱华熊姹严传俊范玮
Owner JIANGSU TIANYING ENVIRONMENTAL PROTECTION ENERGY COMPLETE EQUIP CO LTD