Combustion chamber cylinder with annular ribs

Abstract

The invention provides a combustion chamber cylinder with annular ribs. The annular reinforcing ribs are additionally arranged on cooling grooves, the structural stability is greatly enhanced, and thesafe and stable long-term work is guaranteed. The combustion chamber cylinder with the annular ribs particularly comprises an inner cylinder body and an outer cylinder body which are coaxially installed in a sleeving mode, more than two axial strip-shaped grooves are distributed in the outer circumference surface of the inner cylinder body in the circumferential direction to serve as the coolinggrooves, and connecting flanges arranged at the two ends of the outer cylinder body are provided with a water inlet channel and a water outlet channel which communicate with the cooling grooves; the more than one annular ribs are arranged on the portion, located on the surfaces of the cooling grooves, of the outer circumference surface of the inner cylinder body; each annular rib is sleeved with an annular cover, the inner surface of each annular cover is provided with an annular groove which is of an annular structure, the annular grooves formed in the inner surfaces of the annular covers arematched with the annular ribs, and the annular ribs are located in the annular grooves; and the outer cylinder body arranged on the exterior of the inner cylinder body in a sleeving mode is fixedly connected with the annular covers.

Description

technical field [0001] The invention relates to a cylinder body of a combustion chamber, in particular to a cylinder body of a heater combustion chamber capable of preventing instability and being easy to process, and belongs to the technical field of engine ground test devices. Background technique [0002] The heater used for the hypersonic large-scale free jet test bench has a large internal surface size, high operating temperature and pressure, and needs to work in a wide range of Mach numbers. The heater needs to simulate the incoming flow conditions within the corresponding range , under the condition of high Mach number, the downflow enthalpy value is very high, which puts forward high requirements on the thermal protection of the heater combustor cylinder; The previous heater was doubled, and the thermal protection of the correspondingly increased size of the test specimen was more severe. [0003] The maximum diameter of the heater combustion chamber of the previou...

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Problems solved by technology

But no matter what form of water cooling is used, heat transfer and instability are very serious contradictions

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