Test system and method for detection of air conditioning system

An air-conditioning system and test system technology, which is applied in the testing of machines/structural components, measuring devices, instruments, etc., can solve the problems of low precision, large data human factors, troublesome equipment transportation, etc., and achieve the effect of streamlined equipment and convenient operation

Active Publication Date: 2014-03-26
CRRC QINGDAO SIFANG CO LTD
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  • Description
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Problems solved by technology

[0005] The above technologies such as pressure maintaining, vacuuming, and charging have the following problems: First, there are many equipments used, which require nitrogen cylinders, vacuum pumps and pressure gauge devices, refrigerant charging, recovery tanks, electronic scales, etc., and the system performs pressure maintaining and pumping. Vacuum, refrigerant recovery, and charging equipm

Method used

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  • Test system and method for detection of air conditioning system
  • Test system and method for detection of air conditioning system
  • Test system and method for detection of air conditioning system

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Embodiment Construction

[0030] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0031] Such as figure 1 As shown, an air-conditioning system detection and testing system includes a tested air-conditioning system 1 and a test system 2. The test system 2 includes a pressure maintaining circuit, a vacuum circuit, a refrigerant charging and recovery circuit and a control unit. The pressure holding circuit, vacuuming circuit, and refrigerant charging and recovery circuit are connected in parallel to each other, and each independently completes the steps of system pressure maintaining, vacuuming, refrigerant charging and refrigerant recovery, and system pipeline cleaning.

[0032] Among them, the tested air conditioning system 1 has a low pressure pipe interface 3 and a high pressure pipe interface 4, and the test system 2 is connected to the low pressure pipe interface 3 and the high pressure pipe interface 4 through the low pre...

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Abstract

The invention relates to a test system and method for detection of an air conditioning system. The test system comprises an air conditioning system to be tested, a pressure maintaining loop, a vacuum pumping loop, a refrigerant charging and recovering loop and a control unit, wherein the pressure maintaining loop, the vacuum pumping loop and the refrigerant charging and recovering loop are connected with one other in parallel, and respectively connected with a low pressure pipe interface and a high pressure pipe interface of the air conditioning system to be tested through connecting pipes; all the loops are connected in series with solenoid valves for controlling the on/off of the loops; the solenoid valves are connected with the control unit. According to the invention, the functions of pressure maintaining, vacuum pumping, refrigerant recovering and charging and the like of the air conditioning system are integrated; the equipment is simple and convenient to operate; full automatic control is achieved; the accuracy of detection data of pressure maintaining, vacuum pumping, refrigerant recovering and charging is increased.

Description

technical field [0001] The invention relates to an air-conditioning system, in particular to an air-conditioning system testing system and testing method for maintaining pressure, vacuuming, recovering and charging refrigerants for various rail vehicle air-conditioning systems. Background technique [0002] Pressure maintaining, vacuuming, and refrigerant charging of the EMU air conditioning system are the key to ensure the safety and normal operation of the air conditioning equipment. [0003] At present, after the air-conditioning system (including air-conditioning units and pipelines) of rail vehicles such as EMUs is installed, it is necessary to carry out the process of system pressure maintenance, vacuuming, recovery of residual refrigerant, and charging of new refrigerant to ensure that the system pipeline is effectively sealed and does not leak. and internal refrigerant cleaning. [0004] The current EMU air conditioning system maintains pressure, vacuumizes, recover...

Claims

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Application Information

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IPC IPC(8): G01M99/00
Inventor 程芳玲石中年姜春鹏敬俊娥苗新芳高月欣
Owner CRRC QINGDAO SIFANG CO LTD
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