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A device and method for rapidly, accurately and continuously measuring the internal temperature of a liquid medium

A liquid medium and internal temperature technology, applied in the field of temperature measurement, can solve the problems of restricting the response speed of the sensor, and achieve the effect of changing the dynamic response characteristics and continuous measurement

Active Publication Date: 2021-06-11
NORTHEASTERN UNIV LIAONING
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Problems solved by technology

However, the long response lag is the main problem of the existing blackbody cavity sensor, which is limited by its precise measurement conditions (the inner wall of the cavity is sealed and isothermal). The thermal lag time transmitted to the inner wall restricts the response speed of the sensor

Method used

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  • A device and method for rapidly, accurately and continuously measuring the internal temperature of a liquid medium
  • A device and method for rapidly, accurately and continuously measuring the internal temperature of a liquid medium
  • A device and method for rapidly, accurately and continuously measuring the internal temperature of a liquid medium

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Embodiment Construction

[0031] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0032] In the prior art, the traditional devices used to measure the internal temperature of the liquid medium are all made of opaque materials to make the inner tube, so that a black body cavity is formed in the temperature sensing tube. Therefore, the heat of the measured liquid medium is transferred from the outer wall of the cavity to Thermal hysteresis will occur on the inner wall, which leads to the problem of slow response sp...

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Abstract

The invention discloses a device and method for rapidly, accurately and continuously measuring the internal temperature of a liquid medium. The device includes a temperature-sensing tube made of light-transmitting materials, and the two ends of the temperature-sensing tube are respectively an open end and a closed end. The open end of the temperature-sensing tube is connected to a thermometer, and the closed end of the temperature-sensing tube is inserted into the liquid medium to be measured to form a temperature-sensing cavity. The present invention prepares a temperature-sensing tube by using a light-transmitting material, which is placed in the liquid to be measured, and the liquid penetrates through the wall of the cavity to directly form a cavity similar to a black body to generate heat radiation, and the sealed end of the temperature-sensing tube is received by the thermometer. The thermal radiation at the bottom calculates the temperature of the liquid medium to be measured, and then realizes the rapid, accurate and stable continuous measurement of the internal temperature of the liquid, especially the aggressive liquid.

Description

technical field [0001] The invention belongs to the technical field of temperature measurement, and in particular relates to a device and method for rapidly, accurately and continuously measuring the internal temperature of a liquid medium. Background technique [0002] Liquid temperature measurement is a common and important measurement in industrial production, accounting for about 30% of the temperature measurement field, and is widely used in metallurgy, petrochemical, textile, pharmaceutical, electric power and other departments. The accuracy and continuity of liquid temperature measurement directly affects product quality, output and energy consumption. For example, in the petrochemical industry, in the production process of ethylene and petroleum distillation, only the precise measurement and control of temperature can refine various petroleum products and obtain a higher yield; in the heat treatment process of the mechanical processing industry, high temperature The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J5/00G01J5/08
CPCG01J5/0037G01J5/0887
Inventor 梅国晖佟瑶张玖赵树茂马有林
Owner NORTHEASTERN UNIV LIAONING
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