Built-in heat source heat flow meter calibration device

CN224327828UActive Publication Date: 2026-06-05TSINGHUA UNIVERSITY +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TSINGHUA UNIVERSITY
Filing Date
2025-05-30
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

There is a lack of effective calibration methods in the existing technology for calibrating built-in heat source heat flow meters to study the heat transfer characteristics of circulating fluidized bed boiler equipment under different operating conditions.

Method used

A calibration device for a heat flux meter with a built-in heat source is provided, including an insulation cylinder, a temperature measuring element, and a stirring mechanism. The device establishes the relationship between heat flux density and temperature gradient by measuring the liquid temperature rise and axial temperature gradient, thereby completing the calibration.

Benefits of technology

It enables simple and accurate calibration of the built-in heat flow meter, allowing for the study of heat transfer characteristics under different operating conditions of circulating fluidized bed boiler equipment, thus improving the accuracy and precision of the research.

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Abstract

The built-in heat source heat flow meter calibration device disclosed in the application comprises a heat preservation cylinder, a temperature measuring element and a stirring mechanism. The heat preservation cylinder comprises a containing cavity capable of containing liquid, and the built-in heat source heat flow meter can be inserted into the containing cavity. The temperature measuring element comprises a first temperature measuring element capable of measuring the temperature of the liquid and a second temperature measuring element capable of measuring the axial temperature gradient of the built-in heat source heat flow meter. The stirring mechanism is connected with the containing cavity. The built-in heat source heat flow meter calibration device disclosed in the application has simple structure and convenient operation. The heat preservation cylinder provides the containing cavity of the liquid. The built-in heat source of the built-in heat source heat flow meter heats the heat conductor, the heat conductor transmits heat to the liquid to make the liquid produce temperature rise, the heat flow density can be calculated by measuring the temperature rise of the liquid, the relationship between the heat flow density and the temperature gradient can be established by measuring the axial temperature gradient of the built-in heat source heat flow meter, and the calibration of the built-in heat source heat flow meter can be completed, and the calibration mode is simple.
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