Ultra-long two-point entity armored-thermocouple

Abstract

The invention discloses an ultra-long two-point entity armored-thermocouple of the technical field of armored thermocouples. The thermocouple includes a temperature measuring core. A surface of the temperature measuring core is fixedly connected with a four-hole magnesium oxide pipe. A surface of the four-hole magnesium oxide pipe is fixedly connected with a stainless steel protection pipe. A surface of the stainless steel protection pipe is fixedly connected with a pipeline. A surface of the pipeline is fixedly connected with a high-temperature resisting layer. A surface of the high-temperature resisting layer is fixedly connected with a rustproof layer. A pipeline A point is arranged on the surface of the pipeline. According to the thermocouple, pipe permeating links in old technology can be eliminated through cooperation use of the temperature measuring core, the four-hole magnesium oxide pipe, the stainless steel protection pipe and the pipeline, thermal response time of the pipeline A point and a pipeline B point can be effectively improved because certain space exists in a protection pipe of a pipeline A point and a pipeline B point of the traditional technology, and thermalresponse time is relatively long, length can exceed a kilometer, and production can be completed in a workshop due to no pipe permeating technology.

Description

technical field [0001] The invention discloses an ultra-long two-point solid armored thermocouple, and specifically belongs to the technical field of armored thermocouples. Background technique [0002] Thermocouple, also known as sensor, is a probe rod for measuring temperature. Its principle is that two different metal conductors are welded at one end to form a loop. When the temperature difference between the welding end and the loop end is formed, a voltage will be generated at both ends of the loop, and the voltage will have a linear relationship with the temperature difference, so as to achieve the purpose of temperature measurement. Its simple structure, convenient use, wide measurement range, high temperature measurement temperature and low price are one of the most popular products in industrial places at home and abroad. [0003] The traditional two-point armored thermocouple, also called a multi-point thermocouple, uses two independent armored thermocouples to be...

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Problems solved by technology

[0003] The traditional two-point armored thermocouple, also called a multi-point thermocouple, uses two independent armored thermocouples to be installed in the same casing to achieve multi-point temperature measurement. The disadvantages are: two armored thermocouples Putting it into the same casing will result in large gaps, poor tightness, and long thermal response time. The temperature measuring core inside is relatively thin and difficult to process. If the length is more than one thousand meters, it is extremely difficult to wear the tube

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