Temperature measuring components for the process pipeline of the liquid oxygen kerosene engine test system

Abstract

The invention relates to a temperature measuring device, in particular to a temperature measuring component for a liquid oxygen kerosene engine test system process pipeline. The purpose of the present invention is to solve the problems of the existing armored temperature sensor that the sealing structure does not match the process pipeline sensor installation interface of the liquid oxygen kerosene engine test system, the sealing performance is poor, the measurement accuracy is low, the response speed is slow, and the reliability is poor. The invention discloses a temperature measuring component for a liquid oxygen kerosene engine test system process pipeline. The assembly includes a platinum resistance temperature sensor, a thermistor temperature sensor and a thermocouple temperature sensor, all of which include a temperature measurement unit, an armored shell, an outer nut, a fastening nut, a wire spring and an outer lead end; the armored shell The ball head of the body is matched with the bell-shaped welding straight-through interface on the pipeline; the platinum resistance temperature sensor is a bottom-touch type; the temperature measuring head of the thermistor temperature sensor is located in the temperature-sensing end, and a liquid Orifice; thermocouple temperature sensor is exposed type.

Description

technical field [0001] The invention relates to a temperature measuring device, in particular to a temperature measuring component for a liquid oxygen kerosene engine test system process pipeline. Background technique [0002] In order to monitor and control the liquid oxygen kerosene engine test process, measure the engine performance data of the engine and the test system in the temperature range of -200 ° C to 600 ° C, it is necessary to install a large number of different types of armored temperature sensors in the process pipeline of the engine and test system . Among them, the sensor installed on the engine comes with the product and adopts the form of end face sealing. The sensors installed in the pump front pipeline, propellant supply pipeline, evaporator pipeline and other test system pipelines shall be provided and installed by the test unit. [0003] Among the many temperature measuring points, the inlet temperature of the liquid oxygen supply system is the cond...

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to solve the technical problems of the sealing structure of the existing armored temperature sensor that does not match the installation interface of the process pipeline sensor of the liquid oxygen kerosene engine test system, poor sealing performance, low measurement accuracy, slow response speed, and poor reliability, and provides A fast-response, high-reliability liquid oxygen kerosene engine test system process pipeline temperature measurement component

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