High-temperature high-pressure anti-vibration anti-scouring thermocouple outer sleeve and installation method thereof

Abstract

The invention discloses a high-temperature high-pressure anti-vibration anti-scouring thermocouple outer sleeve and an installation method thereof, and belongs to the field of temperature measurementcontrol of high-temperature high-pressure high-speed flowing steam in a boiler steam pipeline. The problems that an existing thermocouple measurement outer sleeve is prone to abrasion and breakage, and measurement reliability is affected are solved. The sleeve comprises a conical head, a cylindrical middle section and a base, the conical head, the cylindrical middle section and the base are formedby machining a solid special round steel column made of the same material, the conical head is connected with the cylindrical middle section, the cylindrical middle section is connected with the base, and the conical head, the cylindrical middle section and the base are made of the same material; a mounting hole is formed in the thermocouple outer sleeve and used for mounting a thermocouple innercore, the mounting hole sequentially penetrates through the base and the cylindrical middle section and extends into the conical head, and a V-shaped wedge groove is formed in the end, connected withthe base, of the cylindrical middle section along an outer wall face. The thermocouple outer sleeve is simple in structural design and can effectively improve the reliability of boiler high-temperature high-pressure high-speed flowing steam temperature measurement.

Description

technical field [0001] The invention relates to a high-temperature, high-pressure, anti-vibration, and anti-scouring thermocouple outer casing and an installation method thereof, belonging to the field of temperature measurement and control of high-temperature, high-pressure, and high-speed flowing steam in boiler steam pipes. Background technique [0002] With the development of technology and the need to save energy, reduce consumption, and improve energy conversion efficiency, the temperature, pressure, and flow rate of steam in power plants are getting higher and higher. It is very necessary to accurately and reliably measure the temperature of steam flowing at high temperature, high pressure and high speed in the steam pipeline. When the high-temperature and high-pressure steam flows at high speed in the main steam pipe of the boiler, high-frequency and low-amplitude vibrations are generated; at the same time, the high-speed flowing steam strongly scours the head of the...

AI Technical Summary

Problems solved by technology

When the high-temperature and high-pressure steam flows at high speed in the main steam pipe of the boiler, high-frequency and low-amplitude vibrations are generated; at the same time, the high-speed flowing steam strongly scours the head of the thermocouple outer casing, causing serious wear on the head of the thermocouple outer casing, and the outer casing and steam Problems such as broken pipe welds lead to unmonitorable steam temperature, which poses a great threat to the safe, stable and economical operation of the boiler

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