Fixture device for measuring temperature of outer wall of high-temperature pipeline

Abstract

The invention discloses a fixture device for measuring the temperature of the outer wall of a high-temperature pipeline and is applied to temperature measurement of walls of high-temperature pipelines in the nuclear power industry, the petroleum engineering industry, the chemical engineering industry, the metallurgy industry and the like. The fixture device comprises a detachable type inner layer installation belt, a detachable type outer layer installation belt and two semicircular protective shields, wherein the detachable type inner layer installation belt is provided with 2-8 measurement point grooved holes. The detachable type inner layer installation belt is installed in the manner of being closely attached to the outer wall of the high-temperature pipeline, and induction elements of a contact type temperature sensor are arranged in the measurement point grooved holes and are closely attached to the outer wall of the high-temperature pipeline. The detachable type inner layer installation belt and the induction elements of the contact type temperature sensor are covered with the detachable type outer layer installation belt, and the detachable type outer layer installation belt is fixed by combining fastening bolts and distance bolts on the two semicircular protective shields. The fixture device has the advantages of being capable of fixing the contact type temperature sensor to a measurement area, meanwhile reasonably protecting the contact type temperature sensor, reducing influences of vibration, collision and abrasion, achieving quick, simple and convenient installation and reducing safety risks caused by improper operation.

Description

technical field [0001] The invention relates to a fixture device for measuring the temperature of the outer wall of a high-temperature pipeline, which is used for measuring the temperature of the wall of the high-temperature pipeline operating in situ in industries such as nuclear power, petroleum engineering, chemical industry and metallurgy. Background technique [0002] In many industries such as electric power, chemical industry, and metallurgy, there are many pipelines that transport high-temperature fluids, and these pipelines play a very important role in the entire industrial equipment. High-temperature pipelines need to withstand high temperature for a long time. Under the long-term action of temperature and stress, the microstructure, mechanical properties, heat resistance, and physical properties of the pipeline material will slowly change, resulting in fatigue damage to the pipeline, and micro-cracks may eventually appear in the pipeline , causing failure and dam...

AI Technical Summary

Problems solved by technology

Generally, openings or welding parts are not allowed on the pipeline. When measuring the temperature of the pipeline, the temperature sensor is generally installed on the flanges or valves at both ends of the pipeline, but the temperature in the local area of ​​the long pipeline may be different from the temperature in the nozzle area. Larger, the temperature obtained by the above measurement method will have a larger error with the actual temperature of the key focus area

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