Heat resistance heat flow meter calibration method and implementation device thereof

Abstract

The invention discloses a heat resistance heat flow meter calibration method and an implementation device thereof. The implementation device comprises a heat insulating plate, a hot plate, a cold plate, a heat conductivity coefficient standard plate and a heat resistance heat flow meter, wherein the hot plate, the heat conductivity coefficient standard plate and the heat resistance heat flow meter are successively arranged between the heat insulating plate and the cold plate, and the two sides of the heat conductivity coefficient standard plate are respectively provided with a temperature sensor. The heat flux of the heat conductivity coefficient standard plate is obtained through measuring the thickness of the heat conductivity coefficient standard plate and the temperature difference of the two sides of the heat conductivity coefficient standard plate, according to an equal principle of the heat conductivity coefficient standard plate and the heat flux through the heat resistance heat flow meter and the output potential of the heat resistance heat flow meter, and a sensitivity ratio of the heat resistance heat flow meter is obtained. The heat resistance heat flow meter calibration method and the implementation device thereof provided by the invention have the advantages that the design is reasonable, the structure is simple, and the implementation device is suitable for the heat resistance heat flow meter calibration method utilizing an axial heat conduction principle.

Description

technical field [0001] The invention relates to a method for calibrating a heat flow meter in the field of heat transfer technology, in particular to a method for calibrating a heat resistance type heat flow meter utilizing the principle of axial heat conduction and an implementation device thereof. Background technique [0002] The heat flow meter is a sensor used to test the heat flux density. At present, there are two types of heat flow sensors that are most widely used: one is a thermal resistance sensor that uses the principle of axial heat conduction, and the operating temperature is usually below 200°C. m 2 Below, it is used to test the thermal insulation performance and heat loss of geothermal, pipe or wall surface, which is in line with the corresponding national energy-saving test standards. It is widely used in energy-saving work and is also the most commonly used application of heat flow meters; the other is the radial heat conduction principle. Round foil senso...

AI Technical Summary

Problems solved by technology

However, in practical applications, since the heating plate itself has a certain thickness and has a certain temperature difference with the ambient temperature, the side heat loss cannot be ignored, and the amount of side heat loss is also difficult to calculate accurately. The compensation requirements for side heat loss very high

Therefore, for a long time, the popularization and application of jus cogens has been greatly restricted.

The other is the relative method, that is to use a heat flow sensor with a higher accuracy level to calibrate the heat flow sensor for work. No practical application case

[0004] In the existing technical literature, there are relatively few patent documents related to the heat flow meter calibration method

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