A high temperature heat flow meter with built-in gasket
A heat flow meter and warming technology, applied in calorimeters, measuring devices, measuring heat, etc., can solve the problems of thermocouples and heat-conducting parts affecting measurement accuracy, thermocouple layout difficulties, etc., to achieve convenient layout and lead wires, reduce Effects of measurement error and improvement of measurement accuracy
Active Publication Date: 2018-01-16
TSINGHUA UNIV
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[0004] In order to solve the problem of difficulty in arranging multiple thermocouples and the gap between thermocouples and heat-conducting parts that affects measurement accuracy, this invention proposes a high-temperature heat flow meter with built-in gaskets
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[0015] The principle, specific structure and best implementation mode of the present invention will be further described below in conjunction with the accompanying drawings.
[0016] figure 1 It is a schematic structural diagram of an embodiment of a high-temperature heat flow meter with a built-in gasket provided by the present invention. Taking the 2-stage heat-conducting part as an example, the heat-flow meter includes a front-end heat-conducting part 1a, a second-stage heat-conducting part 1b, a first thermocouple 4a, The second thermocouple 4b, the thermocouple protection tube 5, the cooling medium inlet pipe 8 and the cooling medium outflow pipe 9; the cooling medium inlet 7 and the cooling medium outlet 6 are respectively provided on the cooling medium inlet pipe 8 and the cooling medium outflow pipe 9; The thermocouple is set in the thermocouple protection tube 5; the front end heat conduction part 1a and the second heat conduction part 1b are tightly connected by the...
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The invention provides a high-temperature heat-flow meter with built-in pads and belongs to the technical field of thermal parameter measurement. The heat-flow meter comprises a heat conduction part, a hot-end thermocouple, a cold-end thermocouple, a thermocouple protection tube, a cooling medium inlet tube, a cooling medium outlet tube and metal pads. The heat conduction part is divided into at least two sections in the axial direction and every two adjacent sections are connected via one metal pad. The heat conduction part is provided with an axial through hole and a radial channel, wherein the axial through hole and the radial channel are in communication with each other. The thermocouples are placed in the radial channel, and the lead wires of the thermocouples are led out of the axial through hole. According to the technical scheme of the invention, the heat conduction part is divided into at least two sections in the axial direction, so that the thermocouples can be conveniently placed in the heat conduction part. The sections of the heat conduction part are connected together by means of the metal pads. In this way, the influence of gaps inside the heat-flow meter on the heat conduction performance can be avoided. Due to the adoption of a block structure, a plurality of thermocouples can be placed in the heat conduction part at the same time. Therefore, the measurement accuracy is improved.
Description
technical field [0001] The patent of the invention relates to a high-temperature heat flow meter, in particular to a high-temperature heat flow meter with a built-in gasket, which belongs to the technical field of thermal detection. Background technique [0002] In high temperature equipment, heat flux is an important parameter of equipment operation. Including maintenance and improvement of equipment, verification of calculation results, etc., heat flux analysis is required. In the design of the heat flow meter, how to improve the measurement accuracy of the heat flow meter and avoid the errors during production and use is an important problem that needs to be solved. [0003] At present, the heat flow meter mainly adopts the design scheme of punching holes in the heat-conducting parts and embedding thermocouples. However, in actual operation, especially in the measurement of heat flow with small apertures, similar design schemes are not suitable for arranging multiple th...
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IPC IPC(8): G01K17/00
Inventor 蒙晨玮吴玉新张海吕俊复刘青
Owner TSINGHUA UNIV