Performance tester based on heat exchanger fin unit

Abstract

A capability tester based on exchanger fin cell belongs to energy sources and chemical industry technology field. The test equipment makes up by oil pressure ductwork, constant temperature oil melt, test part, heat preservation water tank and data test / collection system. Test fin, test frame, first and second red-copper base plants, first and second film heating plants, first and second adiabatic frames, first and second adiabatic plants, first and second sealed pillows, clamp, oil intake pipe, oil outlet pipe, thermocouple, intake platinum resistance, outlet platinum resistance, first and second leading press pipes, press intake sensor, press outlet sensor and digital power dial make up into the test part. The test part reduces the heat balance error by inside the heat preservation water tank and uses the electric power to offer quantity of heat. It adopts mono-layer fin as the test object to avoid the test error of the asymmetry of the matter in the exchanger with high test precision, simple manipulate and low cost.

Description

technical field [0001] The invention relates to a test device, in particular to a performance test device based on a fin unit of a heat exchanger, which belongs to the technical field of energy and chemical industry. Background technique [0002] There are many manufacturers of heat exchangers at home and abroad, and the measurement of heat transfer and resistance of heat exchangers is a relatively common test method. The traditional test takes the overall heat exchanger composed of multi-layer heat exchange units as the research object, and measures the flow and heat transfer characteristics of the enhanced heat transfer surface side through water cooling or air cooling. This test method is more common, but it also brings some disadvantages. Taking the plate-fin oil cooler as an example, the heat exchanger is brazed by multi-layer chips. The oil flows through the chips of each layer of the cooler, and the cooling water flows reversely through the outside of the chips, ther...

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Problems solved by technology

In addition, traditional experiments use water-cooling or air-cooling for cooling, and the thermal resistance of the cold side is separated by the separation method to obtain the heat transfer coefficient of the hot side. This method will introduce the error of the measurement of the cold side and the calculation error of the separation method into the heat side test results

Also found in the search, "Journal of Internal Combustion Engines", 1998, 16 (12), research on the thermal characteristics of sawtooth fins with different staggered positions, the reported test device is aimed at the heat exchanger brazed by multi-layer heat exchange units. For the research object, there is a phenomenon of uneven flow in each channel

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