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Apparatus and method for measuring small-sized cold compressor oil circulation amount

A technology of refrigeration compression and circulation, applied in pump testing, mechanical equipment, machine/engine, etc., can solve the problems of complex operation, inaccuracy, lack of data support, etc.

Active Publication Date: 2009-08-05
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these empirical formulas lack sufficient data support
The traditional oil measurement method is complicated and not accurate enough
At present, there is still a lack of a highly accurate and easy-to-operate oil circulation test method and test device

Method used

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  • Apparatus and method for measuring small-sized cold compressor oil circulation amount
  • Apparatus and method for measuring small-sized cold compressor oil circulation amount
  • Apparatus and method for measuring small-sized cold compressor oil circulation amount

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Embodiment Construction

[0020] see figure 1 A device for measuring the oil circulation volume of a small refrigeration compressor, including a substituting refrigeration subsystem for making the compressor work under specific working conditions and a measurement and control subsystem for controlling the working conditions of the substituting refrigeration subsystem and measuring the oil circulation volume, The alternative refrigeration subsystem includes a refrigeration operation unit, a refrigerant adding unit, and a vacuum pumping unit. The alternative refrigeration subsystem adopts a two-stage heating oil separation structure, in which the refrigeration operation unit: the exhaust port and the suction port of the compressor 1 under test respectively pass through Exhaust interface, suction interface and exhaust oil inlet valve 2, exhaust oil-gas separator 3, condensation pipe 4, exhaust oil outlet valve 5, expansion valve 6, suction oil inlet valve 7, evaporation pipe 9, suction The oil-gas separat...

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Abstract

The invention relates to a device and a method for measuring the oil circulating load of a small-sized refrigeration compressor. The device replaces a refrigeration subsystem to adopt a two-stage heating oil separating structure. In a refrigerating and operating unit, an exhaust hole and an inhalation hole of a measured compressor are respectively sequentially connected with an exhaust oil content inlet valve, an exhaust oil and gas separator, a condenser pipe, an exhaust oil content outlet valve, an expansion valve, an inhalation oil content inlet valve, an evaporating pipe, an inhalation oil and gas separator and an inhalation oil content outlet valve through an exhaust interface and an inhalation interface to form a loop, exhaust bypass valves are connected with both ends of the exhaust oil content inlet valve and the exhaust oil content outlet valve in parallel, inhalation bypass valves are connected with both ends of the inhalation oil content inlet valve and the inhalation oil content outlet valve in parallel, and balanced valves are connected with both ends of the exhaust interface and the inhalation interface. The device and the method carry out two-stage heating oil separation for the refrigerating loop by mainly using a method that the compressor is operated in a continuous and discontinuous circulation stopping and starting mode under a variable working condition state.

Description

technical field [0001] The invention relates to the technical field of testing the oil circulation of a small refrigeration compressor, in particular to a device and method for measuring the oil circulation of a refrigeration system. Background technique [0002] The refrigeration system is a closed system composed of compressors, condensers, evaporators, throttle valves and other auxiliary equipment. When the compressor is working, there is a lot of friction inside. In order to ensure the reliable operation of the compressor and improve the performance of the compressor, lubrication is an important link. The lubrication system of the compressor has the functions of sealing, cooling, anti-corrosion and anti-rust, and its performance restricts the performance of the refrigeration system. Due to the limitations of processing technology, small refrigeration compressors still use liquid lubrication. Therefore, when the refrigeration cycle is in progress, the refrigerant should...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B51/00
Inventor 沈希黄跃进顾江萍祝洲杰金华强
Owner ZHEJIANG UNIV OF TECH
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