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Enclosed type heat pump/refrigeration system achieving self-cooling and self-lubricating

A refrigeration system and self-lubricating technology, which is applied in the field of refrigeration compressors, can solve the problems of unusable compressors, etc., and achieve the effects of ensuring long life, simple structure, and avoiding bearing wear

Inactive Publication Date: 2019-06-04
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Conventional compressors rely on gravity for lubrication and cooling in the conventional gravity environment on the ground. Therefore, in space microgravity and variable gravity conditions, conventional compressors on the ground cannot be used

Method used

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  • Enclosed type heat pump/refrigeration system achieving self-cooling and self-lubricating
  • Enclosed type heat pump/refrigeration system achieving self-cooling and self-lubricating

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Embodiment Construction

[0020] The specific embodiments of the present invention will be described in further detail below in conjunction with the drawings and embodiments. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.

[0021] Such as figure 1 As shown, the present invention includes air bearing type centrifugal compressor assembly 1, condenser / radiator 2, heater 3, first expansion valve 4, second expansion valve 5, evaporator / cold plate 6, start valve 7 .

[0022] Air bearing type centrifugal compressor assembly 1 includes compressor casing 8, air bearing bleed line 9, centrifugal impeller 10, compressor suction port 11, front air bearing 12, motor 13, rear air bearing 14 , Centrifugal impeller inlet 15, bleed valve 16, compressor outlet 17.

[0023] The flow process of working fluid in the self-cooling and self-lubricating closed heat pump / refrigeration system of the present invention is:

[0024] The gaseous refrigerant flows ...

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PUM

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Abstract

The invention relates to an enclosed type heat pump / refrigeration system achieving self-cooling and self-lubricating. The enclosed type heat pump / refrigeration system mainly includes an air bearing-type centrifugal compressor assembly, a condenser / radiator, a heater, a first expansion valve, a second expansion valve, an evaporator / cold plate, a starting valve, a compressor outlet air entraining opening, an air entraining valve and an air bearing air entraining pipeline. The enclosed heat pump / refrigeration system achieving self-cooling and self-lubricating utilizes an own working medium to realize lubricating and cooling. The enclosed type heat pump / refrigeration system achieving self-cooling and self-lubricating has the characteristics of simple structure, no demand for other cooling working medium and high starting adaptability.

Description

Technical field [0001] The invention relates to the field of refrigeration compressors and the field of thermal control of spacecraft and aircraft, in particular to a self-cooling and self-lubricating closed heat pump / refrigeration system. Background technique [0002] With the rapid development of modern technology, the design of future spacecraft and aircraft will have an increasing demand for thermal control issues. In the future, spacecraft and aircraft will face new thermal control problems such as increased thermal power consumption, insufficient capacity of traditional airborne heat sinks, and increased heat flux density. These problems have increasingly stringent requirements for thermal control design and new thermal control technology. Will become a research hotspot. [0003] In the third-generation fighter, the thermal load of the electronic cabin of the SU-27 is 18kW, and the thermal load of the electronic cabin of the F-18 is 19kW. In the fourth-generation fighter, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B1/00F25B31/02F25B41/06F25B41/31
Inventor 李育隆吴宏
Owner BEIHANG UNIV
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