Reverse-flow type pulse detonation combustor
A technology of pulse detonation and combustion chamber, which is applied in the direction of combustion chamber, continuous combustion chamber, combustion method, etc., can solve the problems of the length of the whole engine, the increase of the axial distance between the turbine and the compressor, etc., and achieve shortening of the axial distance, The effect of improving work stability and prolonging the use time
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[0024] Embodiment 1:
[0025] The diffuser structure 1 of the recirculation pulse detonation combustion chamber in this example can be changed according to the form of the compressor. In this embodiment, 15 radial triangular diffuser vanes are evenly distributed on the diffuser disc. Adjacent triangular diffuser vanes are spaced 24° apart. There are 40 rectifying vanes evenly distributed in the circumferential direction of the diffuser disc, the vane inlet is 45° to the axial direction, and the outlet is parallel to the axial direction. The diffuser is connected to the casing through the rectifying vanes, and there are 4 bolt holes on the diffuser disc for fixing the bearings.
[0026] The recirculation pulse detonation combustion chamber in this example contains 6 J-type recirculation detonation tubes A type 9, see figure 2 , each detonation tube is composed of a mixing section 10, a detonating straight section 11, and an exhaust bend section 12. The central axis of the de...
Example Embodiment
[0028] Embodiment 2:
[0029] The recirculation pulse detonation combustion chamber in this example contains 6 J-type recirculation detonation tubes B type 17 See image 3 , Compared with the A-type, the B-type has no angle between the intake mixing section 18 and the detonating straight section 19, and its exhaust curved section 20 is 42.9% longer than the A-type, which is more conducive to the formation of the knock wave. Different from the A-type detonation pipe, the outlet of the exhaust bend 20 of the B-type detonation pipe is installed on the outlet of the adjacent turbine guide 6, and the 6 pipes are generally staggered. The central axis of the same B-type detonation pipe is along the It is evenly distributed in the circumferential direction, and the central angles of the central axes of the two adjacent detonation tubes are the same as 60°. Image 6 .
[0030] In this example, the detonation tubes are distributed in a staggered manner. Under the same axial distance, ...
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