阅读说明：本技术 一种双系统一体多物质相变换热的压缩机冷凝机组 (Compressor condensing unit of integrative many materials phase transition heat transfer of dual system ) 是由 梁丁浩 梁雷军 梁苗椿 高翔 汤礼江 高永丰 于 2021-02-21 设计创作，主要内容包括：一种双系统一体多物质相变换热的压缩机冷凝机组,属于制冷设备技术领域；本发明利用制冷压缩机组排放的冷凝废热,将冷凝废热的热能用于吸收式制冷工作中,制冷压缩机组吸取溴化锂吸收式制冷系统物质相变换热的热量后,会降低制冷压缩机组液态制冷剂过冷度,还会增加制冷剂焓差值,又降低了循环制冷剂吸气过热度,缩小了气态制冷剂比容,提高了制冷系统制冷剂循环量,同时还提高了制冷压缩机组制冷效率。(A double-system integrated multi-substance phase-change heat exchange compressor condensing unit belongs to the technical field of refrigeration equipment; the invention utilizes the condensation waste heat discharged by the refrigeration compressor unit, uses the heat energy of the condensation waste heat in the absorption refrigeration work, and after the refrigeration compressor unit absorbs the heat of the phase change heat exchange of the lithium bromide absorption refrigeration system substance, the supercooling degree of the liquid refrigerant of the refrigeration compressor unit can be reduced, the enthalpy difference value of the refrigerant can be increased, the suction superheat degree of the circulating refrigerant is reduced, the specific volume of the gaseous refrigerant is reduced, the circulation quantity of the refrigerant of the refrigeration system is improved, and the refrigeration efficiency of the refrigeration compressor unit is also improved.)

1. The utility model provides a compressor condensing unit of integrative many materials phase transition heat transfer of dual system, includes refrigeration compression condensing unit and lithium bromide absorption refrigeration system, its characterized in that refrigeration compression condensing unit includes compressor, condensation generator, evaporation subcooler, throttling arrangement and evaporimeter, the evaporation subcooler includes liquid supercooling evaporation coil and gaseous supercooling evaporation coil, set up side by side between liquid supercooling evaporation coil and the gaseous supercooling evaporation coil, condensation generator's input is connected to the output of compressor, liquid supercooling evaporation coil's input is connected to condensation generator's output, throttling arrangement's input is connected to liquid supercooling evaporation coil's output, throttling arrangement's output is connected the input of evaporimeter, gaseous supercooling evaporation coil's input is connected to the output of evaporimeter, the output end of the gas supercooling evaporation coil is connected with the input end of the compressor;

the lithium bromide absorption refrigeration system comprises a lithium bromide absorption refrigeration system container, an air-cooled condensation cooler and an absorber, wherein an air extractor is arranged at the upper left end of the lithium bromide absorption refrigeration system container, a centrifugal fan is arranged at the upper right end of the lithium bromide absorption refrigeration system container, the condensation generator is arranged at the upper side inside the lithium bromide absorption refrigeration system container, the evaporation subcooler is arranged at the middle part of the lithium bromide absorption refrigeration system container and below the condensation generator, the absorber is arranged at the lower side inside the lithium bromide absorption refrigeration system container and below the evaporation subcooler, the absorber comprises an absorber coil and an absorber fin, the absorber fin is arranged at the outer side of the absorber coil pipe body, and the air-cooled condensation cooler comprises an air-cooled fin, an absorption cooling pipe and a condensation coil, absorption cooling pipe and condenser coil all alternate and locate in the forced air cooling fin, condenser coil's input is equipped with the distributing pipe, condenser coil's output is equipped with the manifold, the input of distributing pipe passes through the pipeline and is connected with centrifugal fan, the output of manifold is equipped with U-shaped throttle pipe, the output of U-shaped throttle pipe is equipped with first evaporator nozzle, first evaporator nozzle install in the inside of lithium bromide absorption refrigeration system container and in between condensation generator and the evaporation subcooler, through the tube coupling between absorption cooling pipe's input and the bottom of lithium bromide absorption refrigeration system container, and be equipped with the solution spray pump on this pipeline, absorption cooling pipe's output and absorber coil's input are connected, absorber coil's output is equipped with the generator shower head, the generator shower head locate the inside of lithium bromide absorption refrigeration system container and in condensation generator's upside The lower side of the condensation generator is provided with a solution water receiving disc, the upper side of the absorber is provided with an absorber spray head, the output end of the solution water receiving disc is connected with the input end of the absorber spray head, and the lithium bromide absorption type refrigerating system container is internally provided with a lithium bromide and water binary solution.

2. The compressor condensing unit of claim 1, wherein a heat exchanger is disposed on a pipeline connecting the output end of the absorber coil and the generator spray header and a pipeline connecting the output end of the solution water pan and the absorber spray header.

3. The compressor condensing unit of double-system integrated multi-substance phase change heat exchange of claim 1, wherein a fan is disposed at one side of the air-cooled condensing cooler.

4. The compressor condensing unit of claim 1, wherein the upper side of the evaporation subcooler is provided with a second evaporator spray head, the lower side of the evaporation subcooler is provided with a refrigerant water pan, the output end of the refrigerant water pan is connected with the input end of the second evaporator spray head through a pipeline, an evaporator spray pump is arranged on the pipeline, the second evaporator spray head is arranged side by side with the first evaporator spray head, and the spray directions of the first evaporator spray head, the second evaporator spray head, the generator spray head and the absorber spray head are all downward.

5. The compressor condensing unit of claim 1, wherein the condensing generator comprises a serpentine coil and coil fins, and the liquid subcooling evaporating coil and the gas subcooling evaporating coil have evaporating subcooling coil fins on the outer sides thereof.

Technical Field

The invention belongs to the technical field of refrigeration equipment, and particularly relates to a dual-system integrated multi-substance phase-change heat exchange compressor condensing unit.

Background

The refrigerating system mainly comprises four devices of a compressor, a condenser, a throttling element and an evaporator, and the devices are sequentially connected into a closed system through pipelines and pipeline accessories. The refrigerant is continuously circulated in the air conditioning system through four processes of compression, condensation, throttling and evaporation, thereby achieving the aim of refrigeration.

In a refrigeration system, the task of refrigeration is to take out heat in a cooled object and transfer the heat to a surrounding medium (water or air) with higher temperature, so that the temperature of the object is reduced, the heat cannot be spontaneously transferred from a cold object to a hot object, and if the heat needs to be transferred from the cold object to the hot object, external work needs to be consumed, so that the waste condensation heat discharged by the existing refrigeration system is consumed uselessly and is not well utilized.

Disclosure of Invention

The invention mainly solves the technical problems in the prior art and provides a dual-system integrated multi-substance phase change heat exchange compressor condensing unit.

The technical problem of the invention is mainly solved by the following technical scheme: a compressor condensing unit with double-system integrated multi-substance phase change heat exchange comprises a refrigeration compression condensing unit and a lithium bromide absorption refrigeration system, the refrigerating compression condensing unit comprises a compressor, a condensation generator, an evaporation subcooler, a throttling device and an evaporator, the evaporation subcooler comprises a liquid subcooling evaporation coil and a gas subcooling evaporation coil, the liquid subcooling evaporation coil and the gas subcooling evaporation coil are arranged in parallel, the output end of the compressor is connected with the input end of the condensation generator, the output end of the condensation generator is connected with the input end of the liquid supercooling evaporation coil, the output end of the liquid supercooling evaporation coil is connected with the input end of a throttling device, the output end of the throttling device is connected with the input end of an evaporator, the output end of the evaporator is connected with the input end of the gas supercooling evaporation coil, and the output end of the gas supercooling evaporation coil is connected with the input end of the compressor;

the lithium bromide absorption refrigeration system comprises a lithium bromide absorption refrigeration system container, an air-cooled condensation cooler and an absorber, wherein an air extractor is arranged at the upper left end of the lithium bromide absorption refrigeration system container, a centrifugal fan is arranged at the upper right end of the lithium bromide absorption refrigeration system container, the condensation generator is arranged at the upper side inside the lithium bromide absorption refrigeration system container, the evaporation subcooler is arranged at the middle part of the lithium bromide absorption refrigeration system container and below the condensation generator, the absorber is arranged at the lower side inside the lithium bromide absorption refrigeration system container and below the evaporation subcooler, the absorber comprises an absorber coil and an absorber fin, the absorber fin is arranged at the outer side of the absorber coil pipe body, and the air-cooled condensation cooler comprises an air-cooled fin, an absorption cooling pipe and a condensation coil, absorption cooling pipe and condenser coil all alternate and locate in the forced air cooling fin, condenser coil's input is equipped with the distributing pipe, condenser coil's output is equipped with the manifold, the input of distributing pipe passes through the pipeline and is connected with centrifugal fan, the output of manifold is equipped with U-shaped throttle pipe, the output of U-shaped throttle pipe is equipped with first evaporator nozzle, first evaporator nozzle install in the inside of lithium bromide absorption refrigeration system container and in between condensation generator and the evaporation subcooler, through the tube coupling between absorption cooling pipe's input and the bottom of lithium bromide absorption refrigeration system container, and be equipped with the solution spray pump on this pipeline, absorption cooling pipe's output and absorber coil's input are connected, absorber coil's output is equipped with the generator shower head, the generator shower head locate the inside of lithium bromide absorption refrigeration system container and in condensation generator's upside The lower side of the condensation generator is provided with a solution water receiving disc, the upper side of the absorber is provided with an absorber spray head, the output end of the solution water receiving disc is connected with the input end of the absorber spray head, and the lithium bromide absorption type refrigerating system container is internally provided with a lithium bromide and water binary solution.

Preferably, a heat exchanger is arranged on a pipeline connected between the output end of the absorber coil and the spray header of the generator and a pipeline connected between the output end of the solution water receiving disc and the spray header of the absorber.

Preferably, a fan is arranged on one side of the air-cooled condensation cooler.

Preferably, the upper side of the evaporation subcooler is provided with a second evaporator spray head, the lower side of the evaporation subcooler is provided with a refrigerant water pan, the output end of the refrigerant water pan is connected with the input end of the second evaporator spray head through a pipeline, an evaporator spray pump is arranged on the pipeline, the second evaporator spray head is arranged side by side with the first evaporator spray head, and the spraying directions of the first evaporator spray head, the second evaporator spray head, the generator spray head and the absorber spray head are all downward.

Preferably, the condensation generator is composed of a serpentine coil and coil fins, and evaporation supercooling coil fins are arranged on the outer sides of the liquid supercooling evaporation coil and the gas supercooling evaporation coil.

The invention has the following beneficial effects:

the invention utilizes the condensation waste heat discharged by the refrigeration compressor unit, uses the heat energy of the condensation waste heat in the absorption refrigeration work, and after the refrigeration compressor unit absorbs the heat of the phase change heat exchange of the lithium bromide absorption refrigeration system substance, the supercooling degree of the liquid refrigerant of the refrigeration compressor unit can be reduced, the enthalpy difference value of the refrigerant can be increased, the suction superheat degree of the circulating refrigerant is reduced, the specific volume of the gaseous refrigerant is reduced, the circulation quantity of the refrigerant of the refrigeration system is improved, and the refrigeration efficiency of the refrigeration compressor unit is also improved.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention.

In the figure: 1. a compressor; 2. a condensation generator; 3. an evaporation subcooler; 4. a throttling device; 5. an evaporator; 6. a liquid super-cooling evaporation coil; 7. gas supercooling evaporating coil pipe; 8. a lithium bromide absorption refrigeration system container; 9. an air-cooled condensing cooler; 10. an absorber; 11. an air extraction device; 12. a centrifugal fan; 13. an absorber coil; 14. an absorber fin; 15. air-cooled fins; 16. an absorption cooling tube; 17. a condenser coil; 18. a distribution pipe; 19. a manifold; 20. a U-shaped throttle tube; 21. a first evaporator spray head; 22. a solution spray pump; 23. a generator shower head; 24. the solution is connected with a water pan; 25. an absorber spray header; 26. a heat exchanger; 27. a fan; 28. a second evaporator spray head; 29. a refrigerant water receiving tray; 30. an evaporator spray pump; 31. a serpentine coil; 32. coil pipe fins; 33. evaporating the sub-cooling coil fins.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.

Example (b): the utility model provides a compressor condensing unit of integrative many materials phase transition heat transfer of dual system, as shown in figure 1, including refrigeration compression condensing unit and lithium bromide absorption refrigeration system, refrigeration compression condensing unit includes compressor, condensation generator, evaporation subcooler, throttling arrangement and evaporimeter, the evaporation subcooler includes liquid supercooling evaporation coil and gaseous supercooling evaporation coil, set up side by side between liquid supercooling evaporation coil and the gaseous supercooling evaporation coil, condensation generator's input is connected to the output of compressor, liquid supercooling evaporation coil's input is connected to condensation generator's output, throttling arrangement's input is connected to liquid supercooling evaporation coil's output, throttling arrangement's input is connected to throttling arrangement's output, the input of evaporimeter is connected to the output of evaporimeter, gaseous supercooling evaporation coil's input is connected to the output of evaporimeter, the output end of the gas supercooling evaporation coil is connected with the input end of the compressor;

the lithium bromide absorption refrigeration system comprises a lithium bromide absorption refrigeration system container, an air-cooled condensation cooler and an absorber, wherein an air extractor is arranged at the upper left end of the lithium bromide absorption refrigeration system container, a centrifugal fan is arranged at the upper right end of the lithium bromide absorption refrigeration system container, the condensation generator is arranged at the upper side inside the lithium bromide absorption refrigeration system container, the evaporation subcooler is arranged at the middle part of the lithium bromide absorption refrigeration system container and below the condensation generator, the absorber is arranged at the lower side inside the lithium bromide absorption refrigeration system container and below the evaporation subcooler, the absorber comprises an absorber coil and an absorber fin, the absorber fin is arranged at the outer side of the absorber coil pipe body, and the air-cooled condensation cooler comprises an air-cooled fin, an absorption cooling pipe and a condensation coil, absorption cooling pipe and condenser coil all alternate and locate in the forced air cooling fin, condenser coil's input is equipped with the distributing pipe, condenser coil's output is equipped with the manifold, the input of distributing pipe passes through the pipeline and is connected with centrifugal fan, the output of manifold is equipped with U-shaped throttle pipe, the output of U-shaped throttle pipe is equipped with first evaporator nozzle, first evaporator nozzle install in the inside of lithium bromide absorption refrigeration system container and in between condensation generator and the evaporation subcooler, through the tube coupling between absorption cooling pipe's input and the bottom of lithium bromide absorption refrigeration system container, and be equipped with the solution spray pump on this pipeline, absorption cooling pipe's output and absorber coil's input are connected, absorber coil's output is equipped with the generator shower head, the generator shower head locate the inside of lithium bromide absorption refrigeration system container and in condensation generator's upside The lower side of the condensation generator is provided with a solution water receiving disc, the upper side of the absorber is provided with an absorber spray head, the output end of the solution water receiving disc is connected with the input end of the absorber spray head, and the lithium bromide absorption type refrigerating system container is internally provided with a lithium bromide and water binary solution.

A heat exchanger is arranged on a pipeline connected between the output end of the absorber coil and the spray header of the generator and a pipeline connected between the output end of the solution water receiving disc and the spray header of the absorber; the heat exchanger exchanges heat between the dilute lithium bromide solution output by the absorber coil and the concentrated solution stored in the solution water receiving disc, so that the temperature of the concentrated solution is reduced.

A fan is arranged on one side of the air-cooled condensation cooler; the fan generates cold air to reduce the whole temperature of the air-cooled condensing cooler.

The upside of evaporation subcooler is equipped with the second evaporator shower nozzle, the downside of evaporation subcooler is equipped with the refrigerant water collector, pass through the tube coupling between the output of refrigerant water collector and the input of second evaporator shower nozzle, and be equipped with the evaporator spray pump on this pipeline, second evaporator shower nozzle sets up side by side with first evaporator shower nozzle, the direction of spraying of first evaporator shower nozzle, second evaporator shower nozzle, generator shower head and absorber shower head all is down.

The condensation generator consists of a serpentine coil and coil fins, and evaporation supercooling coil fins are arranged on the outer sides of the liquid supercooling evaporation coil and the gas supercooling evaporation coil; the integrated design improves the conversion efficiency of heat energy.

The working principle of the invention is as follows:

the refrigeration compression condensing unit and the lithium bromide absorption refrigeration system start to operate simultaneously, and the air extractor extracts and discharges redundant gas in a container of the lithium bromide absorption refrigeration system in advance; the refrigerant compressed by the compressor sequentially passes through the serpentine coil, the liquid supercooling evaporation coil, the throttling device, the evaporator and the gas supercooling evaporation coil of the condensation generator, and finally returns to the compressor to form a continuous circulating system; the refrigerant passing through the condensation generator is in a high-temperature state, so that the whole condensation generator is also in a high-temperature state, the fan, the centrifugal fan, the solution spray pump and the evaporator spray pump are synchronously started, the solution spray pump pumps and presses the lithium bromide dilute solution in the bottom of the lithium bromide absorption refrigeration system container into the absorption cooling pipe, cold air is generated by the fan, so that the whole temperature of the air-cooled condensation cooler is reduced, the low-temperature lithium bromide dilute solution output from the absorption cooling pipe is guided to the absorber coil, the lithium bromide dilute solution enters the heat exchanger after passing through the absorber coil, and is sprayed above the condensation generator by the generator spray head after passing through the heat exchanger, the lithium bromide dilute solution sprayed on the coil fins of the condensation generator is heated to generate water vapor, the water vapor is sent to the distribution pipe of the air-cooled condensation cooler by centrifugal air generated by the centrifugal fan, and is distributed to the condensation distribution pipe, the cold air is generated by a fan, the temperature of a condensing coil is reduced, water vapor is condensed to form refrigerant water, the formed refrigerant water is gathered in a gathering pipe, the gathered refrigerant water passes through a U-shaped throttle pipe and then is dripped downwards by a first evaporator spray head, the refrigerant water is dripped on evaporating supercooling coil fins of an evaporating subcooler, the refrigerant water absorbs heat on the evaporating supercooling coil fins to generate water vapor, the water vapor is concentrated solution stored in a solution water receiving tray at the lower side of a condensing generator, the concentrated solution passes through a heat exchanger and then is sprayed downwards on the absorber fins by an absorber spray head, the water vapor in a concentrated solution absorption system is changed into dilute solution, a large amount of heat is also generated and is stored at the bottom of a lithium bromide absorption refrigeration system container, the dilute lithium bromide solution is sent to an absorption cooling pipe by a solution spray pump to dissipate heat and cool, and then passes through an absorber coil pipe, the concentrated solution is condensed to form the refrigerant water, the lithium bromide dilute solution is sprayed downwards onto the coiled pipe fins through the generator spray head, and the processes are continuously circulated.

Finally, it should be noted that the above embodiments are merely representative examples of the present invention. It is obvious that the invention is not limited to the above-described embodiments, but that many variations are possible. Any simple modification, equivalent change and modification made to the above embodiments in accordance with the technical spirit of the present invention should be considered to be within the scope of the present invention.