SU817410A1 - Refrigerating unit - Google Patents

Description

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The invention relates to refrigeration technology and may find wide application in refrigeration units for cooling liquid.

Famous refrigeration unit containing a compressor, a condenser and a coil evaporator placed in a closed circulation circuit for a refrigerant, placed in a heat-insulated water tank, the cavity of which is connected to a water circulation circuit with series-connected pump, a heat exchanger and a ring sprinkler installed inside the tank above the evaporator and coaxially to the last 1.

The disadvantage of this implementation of the refrigeration unit is low efficiency with increased metal consumption and complex manufacturing technology.

The purpose of the invention is to increase efficiency.

This goal is achieved by the fact that the circular sprinkler and the upper coil of the evaporator are connected along the outer and inner surfaces by annular ribbons forming

guides for forming a water film, with the upper coil of the evaporator being provided with a screw thread on the outer surface.

FIG. 1 shows a diagram of a refrigeration unit; in fig. 2 - element of the heat exchanger unit with a sprinkler, longitudinal section; in FIG. 3, section A-A in FIG. 2

Claims (1)

The refrigeration unit contains compressor 1 connected in series into a closed circulation loop for refrigerant, condenser 2 and coil evaporator 3 placed in a heat-insulated tank 4, cavity 5 of which is connected to water circulation circuit 6 with series-connected pump 7, heat exchanger B and ring sprinkler 9 and coaxially to the latter, with the annular sprinkler 9 and the upper coil 10 of the evaporator 3 being connected on the outer and inner surfaces by annular ribbons forming the visor guides and 11 for forming a water film, the upper coil 10 of the evaporator 3 being provided on the outer surface with a screw thread 12. The refrigeration unit operates as follows. Compressor 1 injects steam into condenser 2, in which the condensation heat is released to the cooling medium. The condensed liquid enters through coil 10 and further into the lower coil of the evaporator 3. Formed in the evaporator, 3 refrigerant vapors are directed to the suction in the compressor. The liquid heated in the heat exchanger is pumped by the pump 7 into the ring sprinkler 9. and coil 10. In this space, an overpressure is created, under the influence of which the cooled liquid is driven through the channels formed by screw thread 12. This forms a film that irrigates evaporator Washing the outer surface of the evaporator 3, the liquid cools and flows into the cavity 5 of the heat-insulated tank 4. From the cavity 5, the liquid is supplied by the pump 7 to the heat exchanger 8. This cooling installation reduces the metal content by 50%, increases its reliability, compactness and economy Claims of the Invention A refrigeration unit comprising a compressor, a condenser and a coil evaporator placed in a thermally insulated water but connected in series in a closed circulation loop for a refrigerant. The tank, the cavity of which is connected to a water circulating circuit with a series-connected pump, a heat exchanger and a ring sprinkler installed inside the tank above the evaporator and coaxially with the latter, characterized in that, in order to increase efficiency, the ring sprinkler and the upper coil of the evaporator 1 are connected to the outside and the inner surface of the annular ribbons forming the guides of the visors to form a water film, with the upper coil of the evaporator provided on the outer surface of the screw thread Coy .. Sources of information taken into account in the examination 1. USSR author's certificate on application 2662207, cl. G 25 V 1/00, 1978. F Ut. t LL (pUt.S