Optical observation window capable of being used in high-temperature and high-pressure environment

Abstract

The invention provides an optical observation window capable of being used in a high-temperature and high-pressure environment. The observation window comprises a protective cover plate (1), an upperflange plate (3), an upper sealing gasket (4), a light-transmitting material (5), a lower sealing gasket (6), a lower flange plate (8) and a sealing gasket (9) for installing the observation window, the observation window further comprises an observation window assembling bolt (2) and a bolt (7) for installing the observation window. The observation window assembly bolt (2) is used for assemblingan observation window assembly; and the observation window mounting bolt (7) is used for mounting the observation window on an observation object. The structure of the optical observation window capable of being used in the high-temperature and high-pressure environment avoids direct contact between a light-transmitting material and an observed piece, greatly reduces potential safety hazards whenthe observation window works, and has the advantages that mounting and dismounting are efficient, cleaning and maintaining are easy, the light-transmitting material is easy to replace, and a protective cover is convenient to use.

Description

technical field [0001] The invention belongs to the technical field of turbomachinery testing, and in particular relates to an optical observation window device that can be used in a high-temperature and high-pressure environment. Background technique [0002] In the tests of various types of machinery such as aero-engines, gas turbines, and internal-combustion engines, it is often necessary to perform optical observations on certain internal hot-end components. Since the internal hot-end specimens of this type of mechanical system are often in a closed environment of high-temperature (above 500°C) and high-pressure (above 1MPa) gas, it is only possible to set up an optical observation window at a specific position to meet requirements such as infrared temperature measurement. , spectrum shooting, visual measurement and other application requirements of various optical testing technologies. [0003] The existing observation window products in the domestic and foreign market...

AI Technical Summary

Problems solved by technology

Although the flange structure can meet the requirements of high-temperature and high-pressure gas sealing, the light-transmitting material of the observation window is often weaker than the material of the flange in terms of hardness and toughness. Material damage or even chipping

In addition, the manual installation of multiple bolts has problems such as poor control of the bolt tightening torque, and inconsistent tightening torque of each bolt, which leads to stress in the light-transmitting material, which makes this type of observation window have hidden dangers such as gas leakage and cracking of the light-transmitting material during application. When there is high-speed airflow, rotating equipment, etc. inside the test piece, such hidden dangers will be magnified many times due to the existence of vibration

On the other hand, light-transmitting materials often need to be wiped and cleaned after each test, and they need to be reinstalled after maintenance. Repeated installation and disassembly are not only time-consuming and laborious, but also further reduce the assembly quality of the window

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