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Thermocouple protection tube

A technology of protection tubes and thermocouples, applied in measuring heat, using directly heat-sensitive electric/magnetic element thermometers, using electric devices, etc., can solve problems such as poor stability, and achieve high installation strength and stable installation.

Pending Publication Date: 2018-02-02
宜兴市华井科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing thermocouple protection tubes mostly use flanges and fixed bases to achieve single-sided fixation. This fixation method has poor stability in harsh environments.

Method used

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Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0018] see Figure 1~2 , in an embodiment of the present invention, a thermocouple protection tube is mainly composed of a silicon nitride ceramic tube body 1, and the inside of the silicon nitride ceramic tube body 1 is provided with a lumen 3; the silicon nitride ceramic tube body The outer side of 1 is provided with an adjustment and installation device, and the adjustment and installation device is composed of an upper fixed plate 6 and a lower moving plat...

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Abstract

The invention discloses a thermocouple protection tube, and the protection tube mainly consists of a silicon nitride ceramic tube body. The interior of the silicon nitride ceramic tube body is provided with a tube cavity. The outer side of the silicon nitride ceramic tube body is provided with an adjustment installation device, and the adjustment installation device consists of an upper fixed plate and a lower fixed plate. The upper fixed plate and a lower moving plate are arranged horizontally, and the center of the upper fixed plate and the center of the lower moving plate are respectively provided with a circular central hole. The protection tube can achieve the autonomous fixing of the lower moving plate and the upper fixed plate through the cooperation of a fixed screw hole with a bolt. Meanwhile, the lower moving plate and the upper fixing plate can achieve the clamping of a fixed based, thereby achieving the stable installation of the silicon nitride ceramic tube body. At this moment, compared with a conventional single-side fixing mode, an adjustment clamping type double-side fixing mode is employed in the scheme, so the overall installation strength is higher.

Description

technical field [0001] The invention relates to the field of thermocouples, in particular to a thermocouple protection tube. Background technique [0002] Thermocouple is a commonly used temperature measuring element in temperature measuring instruments. It directly measures the temperature, and converts the temperature signal into a thermal electromotive force signal, and converts it into the temperature of the measured medium through an electrical instrument (secondary instrument). The shapes of various thermocouples are often very different due to needs, but their basic structures are roughly the same, usually composed of main parts such as thermal electrodes, insulating sleeve protection tubes, and junction boxes, and are usually associated with display instruments, recording instruments, and electronic regulators. used together with the device. [0003] Thermocouples have become the most widely used components in the fields of industrial production and scientific resea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/02G01K1/08
CPCG01K1/08G01K7/02Y02E30/30
Inventor 徐叶新
Owner 宜兴市华井科技有限公司
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