An air-cooled compression condensing unit performance test system

A technology of condensing unit and test system, which is applied in the field of construction environment and equipment engineering, can solve the problems of high temperature of calorimeter, inaccurate measurement of heat transfer heat of heat pipe, and inability to realize heat balance of calorimeter, so as to achieve uniform distribution and reduce energy consumption. consumption effect

Active Publication Date: 2011-12-07
NANJING NORMAL UNIVERSITY
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Problems solved by technology

Therefore, even if the separated heat pipe can transfer heat from the high temperature section to the low temperature section well, the heat balance in the calorimeter cannot be achieved, and the temperature of the calorimeter will become higher and higher.
Furthermore, the heat transfe...

Method used

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  • An air-cooled compression condensing unit performance test system
  • An air-cooled compression condensing unit performance test system
  • An air-cooled compression condensing unit performance test system

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0020] like figure 2 As shown, the test system consists of three parts: air circulation processing system, refrigerant circulation system and energy balance and metering system.

[0021] In the refrigeration system cycle, the high-temperature and high-pressure refrigerant liquid from the tested air-cooled compression condensing unit 6 is throttled through the throttle valve 8 to become a gas-liquid two-phase fluid, and then enters the evaporation coil in the calorimeter 9 10. The superheated steam heated by the second refrigerant returns to the tested air-cooled compression condensing unit 6 to complete the entire refrigeration cycle. In order to accurately calculate the cooling capacity of the air-cooled compression condensing unit, the pressure measuring point 7 and the temperature measuring point 12 are respectively set at the inlet and o...

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Abstract

The invention discloses a testing system for performance of an air-cooled compression condensing unit, and belongs to the technical field of building environment and equipment engineering. The testing system comprises an air circulation processing system, a refrigerant circulating system and an energy balancing and metering system, wherein the air circulation processing system comprises a testing environment room, a fan, an air processing unit and a compression condensing unit matched therewith, and an air sampling device; high-temperature high-pressure refrigerant liquid from the compression condensing unit to be tested is throttled into a gas-liquid diphasic fluid by a throttle valve, enters an evaporation coil in a calorimeter instrument, and is heated by a second refrigerant into overheat steam to return to the compression condensing unit to be tested, so that the whole refrigeration circulation is completed; and secondary refrigerants in a surface cooling coil in the air processing unit in a centrifugal pump and a heating coil in the calorimeter instrument forms a secondary refrigerant circulation by a centrifugal pump. The system can realize energy self-balance, reduce running energy consumption and accurately test performance parameters, such as refrigerating capacity, of the air-cooled compression condensing unit.

Description

technical field [0001] The invention relates to a performance test system of an air-cooled compression condensing unit, which is used for measuring performance parameters such as the cooling capacity of the air-cooled compression condensing unit, and belongs to the technical field of building environment and equipment engineering. Background technique [0002] The "Second Refrigerant Quantity Heater Method" is a representative test method for performance testing of air-cooled compression condensing units in the national standard GB / T 21363-2008 "Positive displacement refrigeration compression condensing units". attached figure 1 It is a schematic diagram of the structure of the air-cooled compression condensing unit performance test system in the above-mentioned national standard. On the one hand, the air-cooled compression condensing unit discharges heat to the environment; on the other hand, the refrigerant gas discharged from the air-cooled compression condensing unit en...

Claims

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Application Information

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IPC IPC(8): G01M99/00G01K17/06
Inventor 张忠斌黄虎蒋青邵沈进陈泽民
Owner NANJING NORMAL UNIVERSITY
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