Sheathed thermocouple component penetrating high-temperature high-pressure helium pressure shell

Abstract

The invention discloses a sheathed thermocouple component penetrating a high-temperature high-pressure helium pressure shell, and relates to the field of reactor thermal engineering test temperature measurement. The sheathed thermocouple component comprises a penetrating part which is used forleading out and seals at least one sheathed thermocouple from the pressure shell. The penetrating part further comprises a barrel body and a sealing flange, wherein the barrel body is used for leading out at least one sheathed thermocouple from the pressure shell, the sealing flange is arranged at one end of the barrel body and is used for sealing one end of the barrel body of the penetrating part, and the sheathed thermocouple penetrates through the sealing flange. The sheathed thermocouple component is used for leading out a plurality of sheathed thermocouples from the high-temperature high-pressure helium pressure shell, is capable of basically not reducing the strength of the pressure shell and guaranteeing the air tightness, is capable of leading out an electric lead-out end from the pressure shell under the condition that a sheathed thermocouple measurement end is installed well in the pressure shell, and is convenient to detach and install. The sheathed thermocouple component penetrating the high-temperature high-pressure helium pressure shell is simple in structure, good in reliability, and high-temperature-resistant.

Description

technical field [0001] The invention relates to the technical field of temperature measurement in a thermal engineering experiment of a reactor, in particular to an armored thermocouple assembly penetrating a high temperature and high pressure helium gas pressure shell. Background technique [0002] Armored thermocouples have many advantages of ordinary thermocouples, such as wide temperature measurement range, high measurement accuracy, fast response speed, etc. At the same time, they also have many incomparable characteristics of ordinary thermocouples, such as firm shock resistance, corrosion resistance, high temperature resistance, Thermoelectric performance is stable, easy to flex, good sealing, large size and length range, pressure and explosion-proof, etc. Therefore, in the fields of thermal power stations, aero-engines, nuclear reactors, and petroleum smelting, especially in the field of high temperature gas temperature measurement such as boiler flue gas, gas turbin...

AI Technical Summary

Problems solved by technology

However, commonly used inorganic soft sealing materials such as graphite cannot meet the requirements of helium gas sealing, while organic soft sealing materials such as polytetrafluoroethylene have poor high temperature resistance. seal damage

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