Drainage balanced top-mounted built-in gas wave refrigerator

Abstract

The utility model relates to a top-mounted built-in gas wave refrigerator with balanced drainage, which belongs to the technical field of pressure gas expansion refrigeration. The machine adopts a built-in structure that is completely installed from the top, and the labyrinth seal dynamic ring that plays a key role is integrated with the main shaft, and the shaft is realized by entraining air in the shaft and using labyrinth seals with the same structure and size on both sides. The balance of axial force solves technical problems such as easy damage to bearings and shortened machine life due to pressure imbalance caused by high pressure, and more effectively prolongs machine life and achieves the purpose of improving refrigeration efficiency. The top-mounted embedded overall structure and the axial combined radial labyrinth seal form make the seal and other components form a whole, which is convenient for processing, installation and disassembly, and can better meet the sealing requirements. The multi-stage orifice plate dissipation and drainage structure can effectively eliminate the liquid accumulation in the device, which overcomes the disadvantage that seriously affects the efficiency of adiabatic refrigeration, and adopts the form of avoiding the direct dragging of the motor, which can solve the possible safety hazard caused by the motor shaft displacement Hidden danger.

Description

technical field [0001] The invention relates to a drainage-balanced top-mounted built-in gas wave refrigerator, which belongs to the technical field of pressurized gas expansion refrigeration. Background technique [0002] In the 1980s, Dalian University of Technology developed the gas wave refrigerator (patent number 89213744.4) and the multi-stage gas wave refrigerator (96115022.X). The gas distributor rotates, and at a certain rotation speed, the medium gas is sequentially jetted to the receiving tubes with closed ends in the circumferential direction, so that the retained gas in the tubes does unsteady expansion work to realize refrigeration. Constant expansion cooling. The refrigeration efficiency of this type of refrigerator is generally high within the range of design working conditions, but with the extension of the service life and the change of working conditions, it is difficult to maintain high efficiency in refrigeration work. This is due to the insufficient...

AI Technical Summary

Problems solved by technology

[0003]The purpose of the present invention is to provide a kind of air-introduction through the hole in the main shaft and the same symmetrical axial combination radial labyrinth seal structure on both sides of the nozzle, which can effectively solve the problem of The problem of shortened life due to excessive axial force caused by high pressure

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