SU1333977A2 - Method of heating ground under refrigerator - Google Patents

Abstract

Invention m. used in refrigeration. The purpose of the invention is to expand the functionality when using saline water in the composition of the coolant. For this, the coolant is divided into gas hydrates before heating, feeding into the system 1 pipelines and cooling. Then the mixture of gas hydrates and liquid mass from the system I of pipelines is pumped into pumping device 7. Using a filtering screen 8, gas hydrates are separated from saline water, which is accumulated in pocket 9. Experimental hydrates are mixed with treated water and fed into heater 3; After heating in separator 5, the separator is separated (Desalinated water is divided into two streams, one of which is directed through degasser 13 to the consumer, and the other is directed by pump 12 to flush gas hydrates. 1 silt. - 00 00 00 with vj kj

Description

The invention relates to refrigeration engineering, in particular to methods for heating the soil beneath refrigerators.

The purpose of the invention is to expand the functionality when using saline water in the composition of the coolant.

The drawing shows the installation diagram for the implementation of the proposed method of heating the soil under the refrigerator.

The installation contains a closed volume, which includes a system of pipelines 1, laid under the floor of the refrigerator, a circulation pump 2 suspensions, a heater 3 hydrate suspensions with a heat exchanger 4, a separator

5waters and light boilers, node

6 heat carrier preparation, separation washing device 7, having in the middle part filtering net 8 and pocket 9, and in the upper part - spreader IO and accumulator 11, pump 12 of water and degasser 13. Pipelines 14 and 15 of the original saline water and light boiling liquid, respectively.

For example, the freon P - 31 can be used as a light boiling liquid.

The installation works as follows.

A mixture of saline water containing approximately 9% of salts and 5.25% of liquid P-3I refrigerant at 13 ° C and pressure of 350 kPa is supplied from the heat carrier preparation unit 6 to system 1, pipelines, where it is cooled to 10 - 10.5 seconds as a result heat exchange with the floor of the chambers of the refrigerator .. In the cooled mixture, the formation of hydrates occurs, co-hydrating heat, which prevents soil freezing under the floor of the refrigerator. As hydrates form, the concentration of saline water also increases with the transition

the flow through the pipelines decreases pressure as a result of overcoming hydraulic resistances. The outgoing mixture of hydrates and liquid mass from the piping system 1 is pumped 2, increasing the pressure up to 450 kPa, to the separation-washing device 7, where the hydrates are

) The Q of the filtering mesh 8, having cells of 50-100 microns in size (hydrate sizes are usually 100-200 microns), is separated from the saline water, which is accumulated in pocket 9, from 15 where one part is recycled to the heat carrier preparation node 6, and the other a part is withdrawn from the device through the degasser 13, in which the dissolved light boiling liquid is extracted from it, the latter can be recycled through conduit 15 to the heat carrier preparation unit 6. A porous hydrate piston is formed at the top of the filter screen, which moves upward and downward through the desalinated water supplied by pump 12, which results in washing of the surface film of saline water. The washed hydrates are loosened by the spreader 10, mixed with desalinated water in the pocket of accumulator 11 and hydrotransformed into heater 3, where heating and decomposition takes place at about 19 seconds and at a pressure of 380 kPa hydrates to water and liquid refrigerant P-31. For heating, heat from an external source of heat transfer fluid with a temperature of 22 - which is pumped through heat exchanger 4 can be used. From the heater 3, desalinated water and liquid P-3I refrigerant are supplied to separator 5, where they are separated under the action of gravity due to the difference in their densities. Desalinated water is withdrawn from the top of the separator 5 and divided into two streams, one of which is through the degasser 13

35

Consumed by the consumer, and another liquid boiling liquid in the composition with hydra-gg 12 is sent to the washing of hydrates to 10.2%, which, while retaining a film of mineralized water. Liquid refrigerant P-3I from the lower part of the separator 5 is recycled to the heat carrier preparation unit 6, where mixing a constant temperature head in the hydrate formation process leads to a decrease in the hydrate formation temperature by 0.6-0.7 C, gg with mineralized water, and Tie. the temperature field under the floor is returned to the system 1 of the pipe-cooler with sufficient accuracy for practical purposes.

conduct in The initial fresh saline water to be desalted is introduced through conduit 14.

constant. When the coolant circulates through pipelines, the pressure decreases as a result of overcoming hydraulic resistances. The outgoing mixture of hydrates and liquid mass from the piping system 1 is pumped 2, increasing the pressure up to 450 kPa, to the separation-washing device 7, where the hydrates are

filter mesh 8, having cells with a size of 50-100 microns (hydrate sizes are usually 100-200 microns), is separated from the saline water, which is accumulated in a pocket 9, from where one part is recycled to the heat carrier preparation unit 6, and From the device through the degasser 13, in which the dissolved light boiling liquid is extracted from it, the latter can be recirculated through the pipeline 15 to the heat carrier preparation unit 6. At the top of the filtering mesh, a porous hydrate piston is formed, which moves upward, penetrating the desalinated water supplied by pump 12, as a result of which comrades are washed from the surface film of saline water. The washed hydrates are loosened by the spreader 10, mixed with desalinated water in the pocket of the storage device 11 and hydrotransformed into the heater 3, where heating and decomposition takes place at about 19 s and at a pressure of 380 kPa hydrate to water and liquid refrigerant P-31. For heating, heat of the external heat source with a temperature of 22 - can be used, which is pumped through the heat exchanger 4. From the heater 3, desalinated water and liquid P-3I refrigerant are supplied to separator 5, where they are separated by gravity due to the difference in their densities. Desalinated water is withdrawn from the top of the separator 5 and divided into two streams, one of which is through the degasser 13

with saline water, and again returned to the system 1

conduct in The initial fresh saline water to be desalted is introduced through conduit 14.

313339774

Claims (1)

The formula of the invention of its part, and after heating The method of heating the soil under the holo-producing separation from the additive by the autor. No. 1183787, of t-resplended water, part of which is guided by the fact that the washing of gas hydrates is used for washing, and the purpose of expanding the functional parts is to use capacity when used as part of the refrigerator, and the closed volume mineralized water coolants, replenish with the required amount of light carrier before heating the mineralized water sections after they are pricked with gas hydrates, which are washed with suspended sludge by that desalinated water, and on mineralized water with return to the same messed water, part of which was returned to the part separated from gas hydrates Sludge into a closed volume with osmoneralized water discharge.