Displacement temperature measuring device suitable for high-temperature and high-pressure rectangular test piece

Abstract

The invention relates to a displacement temperature measuring device suitable for a high-temperature high-pressure rectangular test piece. The displacement temperature measuring device is composed ofa water-cooled measurement section cavity, a displacement mechanism mounting base, a displacement mechanism, a displacement rod, an air-cooled sealing strip and a multi-point temperature measuring rake. The whole measurement section cavity adopts a reasonable water cooling structure to realize long-time work under high-temperature and high-pressure conditions; the displacement mechanism is drivenby a stepping motor and cooperates with the air-cooled sealing strip, so that continuous linear movement and pulse linear movement of the sensor under the conditions of high temperature and high pressure are realized; the multi-point temperature measuring rake adopts a non-cooling and full-ceramic structure, so that the interference of a water-cooling or air-cooling structure on a measuring resultis avoided and the measuring precision can be effectively improved; meanwhile, the structure is small in size, and interference on a flow field in a combustion chamber is small. The displacement temperature measuring device effectively solves a problem of measurement of temperature distribution of the outlet of the rectangular combustion chamber of the gas turbine, and can realize scanning type measurement of the gas temperature of the outlet section of the whole rectangular combustion chamber.

Description

technical field [0001] The invention belongs to the experimental research field of gas turbine combustion chambers and other combustion devices, and relates to a displacement temperature measuring device suitable for high-temperature and high-pressure rectangular test pieces, in particular to a displacement temperature measurement device suitable for gas temperature in a high-temperature and high-pressure environment in a rectangular channel. measuring device. Background technique [0002] Gas turbine combustors and other combustion devices are where the oxidant and fuel are mixed and burned, converting the chemical energy of the fuel into heat in the combustor. The gas temperature is one of the main parameters of the combustion chamber, and the level and distribution of the gas temperature need to be considered in the combustion chamber design, test and component matching process. [0003] Taking the combustion chamber of a gas turbine as an example, the turbine blades are...

AI Technical Summary

Problems solved by technology

In order to solve the problem of difficulty in measuring the outlet temperature of the high-temperature and high-pressure rectangular combustion chamber, a displacement temperature measurement device suitable for high-temperature and high-pressure rectangular test pieces is proposed, and the existing multi-point temperature measurement rake is optimized to improve the displacement measurement. The safety of the temperature device and the accuracy of the measurement

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