Refrigerator heat exchanger performance measurement and control device

A technology of measurement and control devices and heat exchangers, applied in the field of detection, can solve the problems of refrigerator heat exchangers, such as difficult performance, large influence, and difficult control of test accuracy, so as to achieve high-precision testing, weaken the influence, and benefit independence Effect

Active Publication Date: 2014-12-10
广州兰石技术开发有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] On the other hand, due to the relatively small heat transfer capacity of the refrigerator evaporator and condenser, the refrigerant flow rate of the system is small, the change of the external environment has a greater impact on the test, and the test

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  • Refrigerator heat exchanger performance measurement and control device
  • Refrigerator heat exchanger performance measurement and control device
  • Refrigerator heat exchanger performance measurement and control device

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Embodiment Construction

[0018] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] see Figure 1~3 , a performance measurement and control device for a refrigerator heat exchanger, including a compressor 1, an auxiliary heat exchanger 2, a first bypass hand valve 3, a dry filter 4, a casing heat recovery device 5, a flow meter 6, an electric heating belt 7. Electronic expansion valve 8, second bypass hand valve 9, evaporator 10, controller, data collector 34 and industrial computer 35.

[0020] The casing type heat recovery device 5 includes a hot air channel and a cold air channel; the outlet of the compressor 1 is sequentially connected to the auxiliary heat exchanger 2, the first bypass hand valve 3, the dry filter 4, the hot gas channel, the flow meter 6, and the electric heating belt 7 , the electronic expansion valve 8, the second bypass hand valve 9, the cold air passage and the evaporator 10, and the inlet of the comp...

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Abstract

The invention discloses a refrigerator heat exchange performance measurement and control device. A compressor, an auxiliary heat exchanger, a first bypass hand valve, a drying filter, a hot air passage, a flowmeter, an electric heating tape, an electronic expansion valve, a second bypass hand valve, a cold air passage and an evaporator form a loop via a pipeline. The auxiliary heat exchanger comprises a condenser, an electric heater, an auxiliary evaporator and a heat-exchange medium; the auxiliary evaporator is connected with an auxiliary compressor, an auxiliary condenser and a capillary through a pipeline. Two ends of the first bypass hand valve are connected with a measured condenser through first control valves, and two ends of the second bypass hand valve are connected with a measured evaporator through second control valves. The refrigerator heat exchanger performance measurement and control device further comprises a heat exchanger performance parameter data acquisition and measurement mechanism. By means of the refrigerant-refrigerant, refrigerant-air and system self-heating type cold and heat recovery, length of a system pipeline is shortened to the utmost extent and intermediate medium for energy transmission is reduced, thus, influence on measurement and control of small-size heat exchangers caused by external factors can be reduced effectively and then high-precision system test is achieved.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a performance measurement and control device for a refrigerator heat exchanger. Background technique [0002] At present, there are many test benches that can be used to measure the performance of heat exchangers, and there are many test methods, most of which use the refrigerant liquid flow method to measure the cooling capacity of heat exchangers. That is, under nominal conditions, measure the specific enthalpy of the refrigerant at the inlet and outlet of the heat exchanger under test and the mass flow rate of the refrigerant flowing through the heat exchanger under test, the difference between the specific enthalpy of the refrigerant at the inlet and outlet of the heat exchanger The product of the mass flow rate of the heat exchanger under test is the nominal cooling capacity of the heat exchanger under test. [0003] On the one hand, people's perception of refrigerators h...

Claims

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Application Information

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IPC IPC(8): F25B49/02G01M99/00
Inventor 唐峥罗祥坤黎泽明胡文斌
Owner 广州兰石技术开发有限公司
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