SYSTEM FOR PERFORMING COMPRESSION REFRIGERATION CYCLE USING WATER AS COOLANT Russian patent published in 2016 - IPC F25B13/00 

FIELD: heating.

SUBSTANCE: invention relates to a system for performing vapour compression refrigeration cycle by using water as a coolant. The system comprises an evaporator intended to vaporize the liquid water and producing water vapour and which releases water vapour at the output at a first temperature of the water vapour with a first pressure of the water vapour, a condenser which releases water in the liquid state at the output, which has a second temperature higher than the first temperature, and the second pressure higher than the first pressure, and also the supersonic compressor device comprising a first stage in the form of a centrifugal compressor and a second stage in the form of a supersonic compressor operatively located below the evaporator and above the condenser upstream the coolant and intended to compress the water vapour in a supersonic mode. This increases the temperature from the said first temperature and increases pressure in the ratio of 7:1. The supersonic compressor device is designed in such a way that the directions of rotation of the first stage in the form of a centrifugal compressor and the second stage in the form of a supersonic compressor are opposite to each other.

EFFECT: invention enables to increase the volumetric flow rate and degree of compression.

8 cl, 2 dwg