Liquid level tracking type multi-point temperature measuring device and manufacturing method thereof

Abstract

The invention discloses a liquid level tracking type multi-point temperature measuring device and a manufacturing method thereof. The liquid level tracking type multi-point temperature measuring device comprises an optical fiber temperature measuring wire, and the two ends of the optical fiber temperature measuring wire are connected with a liquid surface floating device and an elastic spring correspondingly; when the liquid level tracking type multi-point temperature measuring device is located in a liquid,the liquid surface floating device floats on the liquid surface, the elastic spring sinks inside the liquid, and the optical fiber temperature measuring wire is straightened. The invention providesthe liquid level tracking type multi-point temperature measuring device and the manufacturing method thereof.The problems that a temperature measuring device of a thermal fluid experiment in the prior art cannot track liquid level change, causes serious interference to the fluid around a measuring point, and influences pressure-bearing and sealing of a pressure vessel, the tracking of the height position of the liquid surface is realized, the stability of the measuring point from the liquid surface is ensured, the number of openings of a container are decreased, sealing is easy, and the fluid interference around the measuring point is reduced.

Description

technical field [0001] The invention relates to the field of fluid experiment equipment, in particular to a liquid level tracking multi-point temperature measuring device and a manufacturing method. Background technique [0002] The temperature measuring device is the most commonly used instrument in thermal fluid experiments. In the process of experiments and engineering applications, temperature stratification accompanied by liquid level changes will occur in pressure vessels, liquid pools and other equipment. It is necessary to accurately measure the temperature at different depths below the liquid level. distributed. In the prior art, the method of arranging multiple thermocouples is often used for measurement. This method requires arranging more thermocouples to extend into different liquid level depths, which will cause great interference to the flow of fluid around the measurement position. And the change of the liquid level cannot be tracked, and more thermocouples ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a liquid level tracking multi-point temperature measuring device and a manufacturing method to solve the problem that the temperature measuring device in the thermal fluid experiment in the prior art cannot track the change of the liquid level, cause serious interference to the fluid around the measuring point, and affect The problem of pressure bearing and sealing of the pressure vessel can achieve the purpose of tracking the height of the liquid level, maintaining the stability between the measuring point and the liquid level, reducing the opening of the container, easy to seal, and reducing the interference of the fluid around the measuring point

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