Device and method for detecting heat radiation performance stability of automobile air conditioner heat exchanger

Abstract

The invention discloses a device and a method for detecting the heat radiation performance stability of an automobile air conditioner heat exchanger. A constant-temperature water tank is connected with a water inlet of a high-temperature-resistance safe water pump through a water quantity regulation valve and is simultaneously connected with the outlet end of the heat exchanger, a water outlet of the water pump is connected with the inlet end of the heat exchanger through a flow rate meter, and a plurality of temperature sensors are placed around the heat exchanger and are connected with a data processing center after being connected with a data collecting system. A fan is placed right in front of the windward side of the heat exchanger. The constant-temperature water tank provides constant hot water, the water pump boosts the pressure of hot water, the temperature sensors test the temperature of the water and the air after and before passing through the heat exchanger, the flow rate meter measures the flow rate of the water while passing through the heat exchanger, the fan simulates the actual work state, the data collecting system converts signals collected by the temperature sensors and the flow rate meter into data, and the data processing center analyzes the collected data and obtains the heat transfer factor and the heat radiation performance stability results of the heat exchanger. The device and the method can be used for detecting the heat radiation performance stability of the automobile air conditioner heat exchanger, and the detection is reliable.

Description

technical field [0001] The invention relates to a device and method for the stability of heat dissipation performance of a heat exchanger, in particular to a device and method for detecting the stability of heat dissipation performance of an automobile air conditioner heat exchanger. Background technique [0002] Automobile air conditioner heat exchanger is a device that transfers part of the heat of the hot fluid to the cold fluid, and is an important part of the automotive air conditioning system. Heat transfer performance is an important index to measure the quality of heat exchangers for automotive air conditioners. The stability of heat transfer performance will directly affect the performance of heat exchangers. If this index does not meet the specified requirements, it will seriously affect the performance of heat exchangers. Thermal effect, so there is an urgent need for a detection device and method for detecting the heat transfer performance of the heat exchanger. ...

AI Technical Summary

Problems solved by technology

The cooling liquid used in the heat transfer performance test of the existing heat exchanger is mainly freon, and there are many test data items, which have very high requirements on the airtightness and structure of the whole device. After the test, the freon remaining in the heat exchanger will also It pollutes the atmosphere, and at the same time, this method is complicated to operate and expensive, and foreign products with reliable performance are often subject to technical blockade

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