SU1432317A1 - Refrigerating installation - Google Patents

Abstract

Invention m. Used in compressor units, the working fluid of which is a binary solution for cooling the flows of liquid and gaseous substances with the consumption of mechanical energy. The purpose of the invention is to reduce the specific reduced energy consumption for obtaining a cold variable t-ry. The installation / 2 contains a solution circulation circuit and a steam circuit. The mechanical compressor 1 is connected by an inlet to the vapor circuit between the liquid separator 7 and the absorber 14, and the outlet to the liquid cavity of the contact-type generator 10. The liquid separator 7 is installed between the absorber 14 and the pump 6, which is additionally included in the circulation circuit of the solution in front of the resorber 2. In such an installation, a weak hot solution from the generator 10 enters the absorber 14, which is enriched in refrigerant vapor coming from the liquid separator 7 . The resulting solution from the absorber 14 is taken up by the pump 6, heated and fed to the generator 10. 1 silt, -B C (L

Description

11A

The invention relates to refrigeration engineering, in particular to compression refrigeration units, the working fluid of which is a binary solution, mainly water and ammonia, and can be used to cool the flow of liquid and gaseous substances while consuming mechanical energy.

The purpose of the invention is to reduce the specific energy consumption for obtaining cold at a variable temperature.

The drawing shows the scheme of the proposed refrigeration unit,

The installation contains compressor 1, resorber 2, heat exchanger 3, choke 4, degasser 5, pump 6, liquid separator 7, solution collector 8, autonomous choke 9, generator Rectifier 11, heat exchanger 2 pacTBOpoBj choke 13, absorber 14, solution collector 15.

The installation works as follows.

The compressor 1 extracts the main part of the refrigerant vapor from the liquid separator 7 and injects it into the contact generator 10, in which the steam superheat heat is removed by boiling solution to form a weak solution and an additional part of the steam. The rectifier 1 1 steam is strengthened to the required concentration and is directed to the resorber 2 and the heat exchanger 3, in which it is absorbed in a weak solution. After the resorber 2, the solution enters the heat exchanger 3, in the upper part of which there is a collector 8 of the solution, where the predetermined part of the solution accumulates and the remaining part is absorbed by the refrigerant vapor in the heat exchanger 3, is discharged into its lower part and enters through the choke 4 into the degasser 5 The solution from the collector 8 through the autonomous choke 9 enters the second cavity of the heat exchanger 3, in which it boils, produces

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cooling effect at intermediate temperature. At this time, the solution in the degasser 5 boils at low pressure, producing cold at alternating low temperatures. The vapor-oil mixture from the heat exchanger 3 and the degasser 5 enters the liquid separator 7, from which the liquid phase is taken up by the pump 6 and is injected again into the reboiler 2, and the vapor phase enters the compressor 1 and partially into the absorber 14. The weak hot solution from the generator 10 enters through the rectifier 11, the heat exchanger 12 and the choke 13 and the absorber 14, in which it is enriched with refrigerant vapor coming from the liquid separator 7. The resulting solution from the absorber 14 is taken up by the same pump 6, heated, passing through the heat exchanger 12, and fed through the rectifier 11 into the generator 10.

Claims (1)

Invention Formula A refrigeration unit comprising a circulation circuit for a solution in which a resorber, a throttle valve, a degasser and a liquid separator, and a steam circuit in which said liquid separator, an absorber, a pump, a generator, and a solution circulation loop resorber are installed, are installed that, in order to reduce the specific reduced energy consumption for obtaining cold at a variable temperature, it further comprises a mechanical compressor connected by an input to the steam circuit between the liquid separator and the absorber, and its output is to the liquid cavity of the generator, which is made of contact type j and the liquid separator is installed between the absorber and the pump, which is additionally included in the circulation circuit of the solution in front of the regenerator.