Convection cooling heat exchange test device

Abstract

The invention discloses a convection cooling heat exchange test device. The heating system of the device adopts a quartz lamp heater; the measuring system comprises a gas proportional valve, a gas flow meter, a heating controller, a temperature measuring meter and a test piece, the cooling system comprises an air source, an air path hose, an airflow rectifying device and an airflow transition device, a supporting system comprises a gas circuit fixing device and test piece heat insulation devices, the test piece and the test piece heat insulation devices are arranged in the airflow transition device; the test piece heat insulation devices are arranged on the left and right sides of the test piece lower bottom surface; a quartz lamp heater is installed at the position, corresponding to the test piece, of the upper top face of the airflow transition device and used for heating the heating face of the test piece, cold air sequentially passes through the gas proportional valve, the gas flowmeter and the airflow rectifying device to enter the test piece located in the airflow transition device, and convection cooling of the test piece is achieved. The device has the advantages of simplecomponents, simple operation, low cost, small external interference and reliable test result.

Description

technical field [0001] The invention relates to the field of test devices, in particular to a convection cooling heat transfer test device. Background technique [0002] Various structural components used in aviation and aerospace must not only meet certain rigidity and strength bearing functions, but also satisfy good heat dissipation functions. The lattice structure is expected to meet the heat protection and load-bearing functions of the specific structure of aerospace vehicles at the same time. Lattice structure is a new type of structure that has emerged in recent years, and the research on its flow and heat transfer laws is very limited. Therefore, it is of great significance to provide a heat exchange device and study the heat exchange performance of different lattice structures. Convective cooling is the most widely used heat transfer method. [0003] Currently, there are few simple and effective devices to study convective heat transfer. Some existing experiment...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a convective cooling heat transfer test device, which overcomes the problems of heat transfer in the heat exchanger of the existing experimental device, external environmental interference, uneven and unstable air flow, etc., and the experimental results are reliable.

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