Shaft seal structure of water vapor compressor, water vapor compressor and heat pump unit

Abstract

The utility model discloses an axle sealing structure of water vapor compressor, water vapor compressor and heat pump unit, axle sealing structure includes: oil seal structure, it is located in bearing seat, cooling circulation structure, it is separated between the oil seal structure of bearing seat and the compression chamber of water vapor compressor, and cooling circulation structure contains cooling ring, and cooling ring is equipped with the cooling groove for the circulation cooling water of cooling ring, and the one end of cooling ring is close to the inner wall of bearing seat and exchanges heat through the contact heat transfer mode. The utility model discloses oil seal structure and compression chamber are separated through cooling ring, and cooling ring sets up cooling groove, along with the continuous circulation of cooling water, and the heat of oil seal structure friction is taken away, and a small amount of water vapor is condensed and leaked simultaneously, prevents water vapor from entering lubricating system, realizes the isolation steam and lubricating oil's while guaranteeing axle system high -efficient heat dissipation.

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