A high temperature and high pressure resistant combustion chamber flame monitoring device

Abstract

The invention relates to a high-temperature-resistant and high-pressure-resistant combustion chamber flame monitoring device applicable to an aero-engine fully-annular combustion chamber outlet. The high-temperature-resistant and high-pressure-resistant combustion chamber flame monitoring device comprises an outer compression ring (1), protecting quartz glass (2), pressure-resistant quartz glass (3), an optical filter (4), a pressure-bearing shell (5), a miniature camera (6), an auxiliary gas source guide pipe (7), an auxiliary gas source connecting pipe (8), a device body (9), a water jacketouter wall (10), an auxiliary gas source pressure-resistant gas-guide flexible pipe (11), a displacement mechanism outer wall (12), a water pipe connector (13) and a fixing seat (14) and is characterized in that the pressure-resistant quartz glass (3) and the pressure-bearing shell (5) form a pressure-resistant cavity to protect the miniature camera (6); the auxiliary gas source connecting pipe (8), the pressure-bearing shell (5) and the auxiliary gas source pressure-resistant gas-guide flexible pipe (11) form a low-pressure gas channel; the pressure-bearing shell (5), the auxiliary gas sourceconnecting pipe (8) and the device body (9) form a high-pressure cool gas channel used for cooling the protecting quartz glass (2); the water jacket outer wall (10) and the device body (9) form a cooling water system; the fixing seat (14) is connected with a combustion chamber outlet displacement mechanism and used for fixing the flame monitoring device.

Description

technical field [0001] The invention belongs to the field of aero-engine combustion chamber testing, and relates to a high-temperature and high-pressure combustion chamber flame monitoring device. Background technique [0002] At present, with the development of aero-engine technology, the outlet temperature and pressure of the combustion chamber are getting higher and higher. In order to ensure the safe operation of the aero-engine, high requirements are put forward for the temperature distribution of the aero-engine combustion chamber outlet. In order to obtain the outlet temperature distribution of the aero-engine combustion chamber, the temperature distribution is usually measured by arranging a temperature sensing part at the outlet of the combustion chamber. The key to improving the design is that due to the extremely complex fuel combustion and flame distribution inside the flame tube, the traditional numerical simulation cannot realize the simulation under real condi...

AI Technical Summary

Problems solved by technology

In order to obtain the outlet temperature distribution of the aero-engine combustion chamber, the temperature distribution is usually measured by arranging a temperature sensing part at the outlet of the combustion chamber. The key to improving the design is that due to the extremely complex fuel combustion and flame distribution inside the flame tube, the traditional numerical simulation cannot realize the simulation under real conditions. Outlet temperature distribution is not up to standard and one of the effective ways to guide the improvement design of combustion chamber

[0003] However, because most of the combustion chambers are opaque metal structures, and their interior is in a state of high temperature and high pressure for a long time, and the outlet size is also small, there is no high temperature and high pressure micro Camera

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