Axial-flow type self-pressurization gas wave refrigerating device and refrigerating method thereof
A refrigeration device, axial flow technology, applied in the field of gas expansion refrigeration, can solve the problems of inability to generate refrigeration gas, wave rotor without considering expansion refrigeration efficiency, etc., achieve full and efficient use, and simple structure
Active Publication Date: 2014-11-12
DALIAN UNIV OF TECH
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Problems solved by technology
But usually the wave rotor does not consider the efficiency of expansion and refrigeration, nor does it return and compress the expanded low-pressure gas, so it cannot produce medium-pressure refrigerant gas
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[0022] see figure 1 , Axial-flow self-pressurized air-wave refrigeration device and refrigeration method thereof, is a unit system composed of high-pressure air valve 1, air-wave expansion-compressor 3, cooler 5, cold exchanger 8, and cold air valve 10; Gas wave expansion - the left end of the compressor 3 has a high pressure gas inlet 2 and a low temperature and low pressure gas outlet 9, and the right end has a return temperature low pressure gas inlet 7 and a medium pressure gas outlet 4, a total of 4 inlet and outlet ports. see figure 2 , the gas wave expansion-compressor 3 has a rotating drum 12 inside, and there are multiple rotating channels 13 arranged in the axial direction, closed at the periphery, and open at the left and right ends; on the fixed left end plate 22, there are two Gas axial port: the small arc length is the high-pressure gas nozzle 11, and the longer arc is the low-pressure cold air outlet 21; on the fixed right end plate 15, there are also two gas ...
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Disclosed are an axial-flow type self-pressurization gas wave refrigerating device and a refrigerating method thereof. By means of the refrigerating device and the refrigerating method thereof, gas wave expansion refrigeration can be performed, simultaneously, energy of high pressure gas waves can be directly utilized to boost pressure of refrigerated gases, low-temperature medium-pressure refrigerated gases can be obtained through cooling capacity exchange, and usable qualities of the refrigerated gases are greatly improved. According to the refrigerating device and the refrigerating method thereof, compression capacity accompanied by gas wave expansion refrigeration is developed to convert high pressure gas energy into precious pressure energy, consumed energy is not increased, heat exchange during expansion and compression can be reduced, and the refrigeration temperature is low. Besides, pressure energy of high pressure gases is fully used and converted, and the refrigerating device and the refrigerating method thereof are suitable for technical fields of refrigeration, dehydration and purification, condensation of heavy components in gases by natural gas pressure energy of a high pressure gas well, pressure energy utilization and low-temperature copious cooling of industrial waste gases and the like.
Description
technical field [0001] The invention discloses an axial-flow self-pressurized gas wave refrigeration device and a refrigeration method thereof, belonging to the technical field of gas expansion refrigeration. Background technique [0002] Gas expansion refrigeration is a commonly used refrigeration technology. Improving the efficiency of expansion refrigeration has important economic and social benefits in today's energy shortage. Common equipment for expansion refrigeration includes turbo expander, heat separator, gas wave refrigerator and throttle valve. Among them, the gas wave refrigeration machinery has the advantages of simple structure, low rotation speed and high refrigeration efficiency. The "gas wave refrigerator", "multi-stage gas wave refrigerator" and "external circulation dissipative gas wave refrigerator" developed and invented by Dalian University of Technology have all obtained national patents. [0003] However, compared with the turboexpander, the inabi...
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IPC IPC(8): F25B9/06F25B31/00
Inventor 胡大鹏邹久朋赵家权刘培启代玉强朱彻刘凤霞张晓冬
Owner DALIAN UNIV OF TECH