CN111174463A - Synergistic emission reduction energy-saving compressor unit for freezing and refrigerating - Google Patents
Synergistic emission reduction energy-saving compressor unit for freezing and refrigerating Download PDFInfo
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- CN111174463A CN111174463A CN202010068646.9A CN202010068646A CN111174463A CN 111174463 A CN111174463 A CN 111174463A CN 202010068646 A CN202010068646 A CN 202010068646A CN 111174463 A CN111174463 A CN 111174463A
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- 238000007710 freezing Methods 0.000 title claims abstract description 15
- 230000008014 freezing Effects 0.000 title claims abstract description 15
- 230000002195 synergetic effect Effects 0.000 title claims description 3
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims abstract description 90
- 239000003507 refrigerant Substances 0.000 claims abstract description 87
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 238000009833 condensation Methods 0.000 claims abstract description 42
- 230000005494 condensation Effects 0.000 claims abstract description 42
- 238000001704 evaporation Methods 0.000 claims abstract description 15
- 239000002918 waste heat Substances 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 238000010521 absorption reaction Methods 0.000 claims abstract description 8
- 238000005057 refrigeration Methods 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims description 85
- 239000000243 solution Substances 0.000 claims description 37
- 239000007864 aqueous solution Substances 0.000 claims description 31
- 239000007788 liquid Substances 0.000 claims description 30
- 239000006096 absorbing agent Substances 0.000 claims description 22
- 239000000498 cooling water Substances 0.000 claims description 17
- 238000001035 drying Methods 0.000 claims description 14
- 238000005507 spraying Methods 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 abstract description 12
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 239000003570 air Substances 0.000 description 14
- 239000012080 ambient air Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
- F25B25/02—Compression-sorption machines, plants, or systems
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
An efficiency-enhancing emission-reducing energy-saving compressor unit for freezing and refrigerating belongs to the technical field of freezing and refrigerating equipment; the invention adopts a mode of absorbing heat exchange and synchronous heat exchange of secondary refrigerant, the energy efficiency is doubled compared with the original mode, the invention adopts a mode of absorbing heat by adopting a multi-stage heat exchange plate type heat exchanger, mainly ensures that a compression condensing unit has lower condensation temperature, absorbs higher condensation waste heat for utilization, improves the temperature of the lithium bromide mixed water solution, improves the refrigeration efficiency, simultaneously improves the solution temperature, is beneficial to heat absorption and evaporation of dilute solution, secondly absorbs heat in a freezing or refrigerating chamber by secondary refrigerant, exchanges the heat of the secondary refrigerant in an absorption evaporator by a secondary refrigerant circulating pump, absorbs the heat of the secondary refrigerant and evaporates, promotes the accelerated evaporation of the secondary refrigerant mixed water to be absorbed by the lithium bromide concentrated solution, and achieves the purpose of recovering and refrigerating by utilizing the condensation waste heat of the compression condensing unit.
Description
Technical Field
The invention belongs to the technical field of freezing and refrigerating equipment, and particularly relates to an efficiency-improving emission-reducing energy-saving compressor unit for freezing and refrigerating.
Background
The compressor sucks working medium steam with lower pressure from the evaporator, the working medium steam with lower pressure is sent into the condenser after the pressure of the working medium steam is increased, the working medium steam is condensed into liquid with higher pressure in the condenser, the liquid with lower pressure is sent into the evaporator after the liquid is throttled by the throttle valve, the liquid is evaporated by absorbing heat in the evaporator to form steam with lower pressure, and therefore the refrigeration cycle is completed.
However, in the prior art, the working medium can generate higher temperature when the compressor condensing unit operates, and the waste heat is dissipated to the ambient air by the high-temperature working medium through the heat exchanger, so that the waste heat cannot be fully utilized.
Disclosure of Invention
The invention mainly solves the technical problems in the prior art and provides an efficiency-improving emission-reducing energy-saving compressor unit for freezing and refrigerating.
The technical problem of the invention is mainly solved by the following technical scheme: the compression and condensation unit comprises a compressor, an oil separator, a multi-stage heat exchange plate type heat exchanger, a liquid receiver, a drying filter, an electromagnetic valve, a throttle valve, a first evaporator and a gas-liquid separator, and the condensation waste heat recovery and absorption type refrigerating system comprises a condensation generator set, an evaporator generator set, a second evaporator, a heat exchanger, a U-shaped throttle pipe, a first solution circulating pump, a second solution circulating pump, a refrigerant water circulating pump, an air extractor, a secondary refrigerant storage and supply device and a secondary refrigerant circulating pump;
the multistage heat exchange plate type heat exchanger is internally provided with a first heat exchange serial pipe and a second heat exchange serial pipe, the compressor, the oil separator, the liquid reservoir, the drying filter, the electromagnetic valve, the throttle valve, the first evaporator, the gas-liquid separator, the first heat exchange serial pipe and the second heat exchange serial pipe are respectively provided with an inlet end and an outlet end, the outlet end of the compressor is connected with the inlet end of the oil separator, the outlet end of the oil separator is connected with the inlet end of the first heat exchange serial pipe, the outlet end of the first heat exchange serial pipe is connected with the inlet end of the liquid reservoir, the outlet end of the liquid reservoir is connected with the inlet end of the drying filter, the outlet end of the drying filter is connected with the inlet end of the electromagnetic valve, the outlet end of the electromagnetic valve is connected with the inlet end of the throttle valve, the outlet end of the throttle valve is connected with the inlet, the outlet end of the gas-liquid separator is connected with the inlet end of the compressor;
the air extractor is arranged outside the condensation generator set, the upper ends of the condensation generator set and the evaporator generator set are respectively provided with an air extracting pipe, the air extracting pipes at the upper ends of the condensation generator set and the evaporator generator set are respectively connected with the air extractor, the interior of the condensation generator set is provided with a first condenser, a first refrigerant water receiving tray, a first spray pipe and a generator, the first condenser is arranged at the upper side of the interior of the condensation generator set, the first refrigerant water receiving tray is arranged below the first condenser, the first spray pipe is arranged below the first refrigerant water receiving tray, the generator is arranged below the first spray pipe, the interior of the evaporator generator set is provided with a second spray pipe, a third evaporator, a second refrigerant water receiving tray, a fourth spray pipe, a fifth spray pipe and an absorber, the second spray pipe is arranged at the upper side of the interior of the evaporator generator set, the third spray pipe is arranged on the lower side of the second spray pipe, the third evaporator is arranged below the third spray pipe, the second refrigerant water receiving tray is arranged below the third evaporator, the fourth spray pipe is arranged below the second refrigerant water receiving tray, the fifth spray pipe is arranged on the lower side of the fourth spray pipe, and the absorber is arranged below the fifth spray pipe;
a third heat exchange tube and a fourth heat exchange tube are arranged in the heat exchanger, the second evaporator, the U-shaped throttle tube, the first solution circulating pump, the second solution circulating pump, the refrigerant water circulating pump, the secondary refrigerant storage supply device, the secondary refrigerant circulating pump, the first condenser, the generator, the third evaporator, the absorber, the third heat exchange tube and the fourth heat exchange tube are respectively provided with an inlet end and an outlet end, the inlet end of the absorber is provided with a cooling water inlet, the outlet end of the absorber is connected with the inlet end of the first condenser through a pipeline, the outlet end of the first condenser is provided with a cooling water outlet, the outlet end of the secondary refrigerant storage supply device is connected with the inlet end of the secondary refrigerant circulating pump, the outlet end of the secondary refrigerant circulating pump is connected with the inlet end of the third evaporator, and the outlet end of the third evaporator is connected with the inlet end of the, the outlet end of the second evaporator is connected with the inlet end of the secondary refrigerant storage feeder, the outlet end of the refrigerant water circulating pump is connected with a third spraying pipe, the inlet end of the refrigerant water circulating pump is connected with a second refrigerant water receiving tray, the inlet end of the U-shaped throttle pipe is connected with a first refrigerant water receiving tray, the outlet end of the U-shaped throttle pipe is connected with the second spraying pipe, the outlet end of the second solution circulating pump is connected with a fifth spraying pipe, the inlet end of the second solution circulating pump is connected with the bottom of the evaporator generator set through a pipeline, the inlet end of the first solution circulating pump is connected with the bottom of the evaporator generator set through a pipeline, the outlet end of the first solution circulating pump is connected with the inlet end of a third heat exchange pipe, the outlet end of the third heat exchange pipe is connected with the inlet end of a second heat exchange serial pipe, and the outlet end of the second heat exchange serial pipe is connected with the inlet end of the generator, the outlet end of the generator is connected with the first spray pipe, the inlet end of the fourth heat exchange pipe is connected with the bottom of the condensation generator group through a pipeline, the outlet end of the fourth heat exchange pipe is connected with the fourth spray pipe, and the secondary refrigerant storage supply is internally provided with secondary refrigerant circulating water.
Preferably, a plurality of spray headers are arranged on the lower sides of the first spray pipe, the second spray pipe, the third spray pipe, the fourth spray pipe and the fifth spray pipe.
Preferably, the condensation generator set and the evaporator generator set are both sealed structures.
Preferably, a first condensing coil is arranged in the first condenser, a second condensing coil is arranged in the absorber, a heat exchange coil is arranged in the generator, and an evaporation coil is arranged in the third evaporator.
Preferably, the evaporator generator set is filled with a lithium bromide mixed aqueous solution, and the lithium bromide mixed aqueous solution is prepared by mixing lithium bromide, water and ethanol.
The invention has the following beneficial effects:
the invention adopts a mode of absorbing heat exchange and synchronous heat exchange of secondary refrigerant, the energy efficiency is doubled compared with the prior art, lithium bromide, water and ethanol are mixed to prepare a lithium bromide mixed aqueous solution, the condensation heat of a compression condensing unit is absorbed, the heat originally emitted into the ambient air by air or cooling circulating water is absorbed by a multi-stage heat exchange plate type heat exchanger, the invention adopts a mode of absorbing heat by the multi-stage heat exchange plate type heat exchanger, mainly ensures that the compression condensing unit has lower condensation temperature, absorbs higher condensation waste heat utilization, improves the temperature of the lithium bromide mixed aqueous solution, improves the refrigeration efficiency, simultaneously improves the temperature of the solution to be beneficial to the heat absorption and evaporation of dilute solution, then absorbs the heat in a freezing or refrigerating chamber by the secondary refrigerant, exchanges the heat of the secondary refrigerant in an absorbing evaporator by a secondary refrigerant circulating pump, absorbs the heat of the secondary refrigerant and evaporates, the refrigerant mixed water is accelerated to evaporate and is absorbed by the lithium bromide concentrated solution, and the purpose of recovering and refrigerating by utilizing the condensation waste heat of the compression condensing unit is achieved.
Drawings
FIG. 1 is a schematic view of a structural connection of the present invention.
In the figure: 1. a compressor; 2. an oil separator; 3. a multi-stage heat exchange plate heat exchanger; 4. a liquid reservoir; 5. drying the filter; 6. an electromagnetic valve; 7. a throttle valve; 8. a first evaporator; 9. a gas-liquid separator; 10. a condensation generator group; 11. an evaporator generator set; 12. a second evaporator; 13. a heat exchanger; 14. a U-shaped throttle tube; 15. a first solution circulating pump; 16. a second solution circulating pump; 17. a refrigerant water circulating pump; 18. an air extraction device; 19. a coolant storage supply; 20. a secondary refrigerant circulating pump; 21. a first heat exchange series pipe; 22. a second heat exchange series pipe; 23. an air exhaust pipe; 24. a first condenser; 25. a first refrigerant water receiving tray; 26. a first shower pipe; 27. a generator; 28. a second shower pipe; 29. a third shower pipe; 30. a third evaporator; 31. a fourth shower pipe; 32. a fifth spray pipe; 33. an absorber; 34. a third heat exchange tube; 35. a fourth heat exchange tube; 36. a cooling water inlet; 37. a cooling water outlet; 38. a shower head; 39. a second refrigerant water receiving tray; 40. a first condenser coil; 41. a second condenser coil; 42. a heat exchange coil; 43. an evaporating coil.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b): an efficiency-enhancing emission-reducing energy-saving compressor unit for freezing and refrigeration comprises a compression condensing unit and a condensation waste heat recovery absorption type refrigerating system, wherein the compression condensing unit comprises a compressor, an oil separator, a multi-stage heat exchange plate type heat exchanger, a liquid receiver, a drying filter, an electromagnetic valve, a throttle valve, a first evaporator and a gas-liquid separator;
the multistage heat exchange plate type heat exchanger is internally provided with a first heat exchange serial pipe and a second heat exchange serial pipe, the compressor, the oil separator, the liquid reservoir, the drying filter, the electromagnetic valve, the throttle valve, the first evaporator, the gas-liquid separator, the first heat exchange serial pipe and the second heat exchange serial pipe are respectively provided with an inlet end and an outlet end, the outlet end of the compressor is connected with the inlet end of the oil separator, the outlet end of the oil separator is connected with the inlet end of the first heat exchange serial pipe, the outlet end of the first heat exchange serial pipe is connected with the inlet end of the liquid reservoir, the outlet end of the liquid reservoir is connected with the inlet end of the drying filter, the outlet end of the drying filter is connected with the inlet end of the electromagnetic valve, the outlet end of the electromagnetic valve is connected with the inlet end of the throttle valve, the outlet end of the throttle valve is connected with the inlet, the outlet end of the gas-liquid separator is connected with the inlet end of the compressor;
the air extractor is arranged outside the condensation generator set, the upper ends of the condensation generator set and the evaporator generator set are respectively provided with an air extracting pipe, the air extracting pipes at the upper ends of the condensation generator set and the evaporator generator set are respectively connected with the air extractor, the interior of the condensation generator set is provided with a first condenser, a first refrigerant water receiving tray, a first spray pipe and a generator, the first condenser is arranged at the upper side of the interior of the condensation generator set, the first refrigerant water receiving tray is arranged below the first condenser, the first spray pipe is arranged below the first refrigerant water receiving tray, the generator is arranged below the first spray pipe, the interior of the evaporator generator set is provided with a second spray pipe, a third evaporator, a second refrigerant water receiving tray, a fourth spray pipe, a fifth spray pipe and an absorber, the second spray pipe is arranged at the upper side of the interior of the evaporator generator set, the third spray pipe is arranged on the lower side of the second spray pipe, the third evaporator is arranged below the third spray pipe, the second refrigerant water receiving tray is arranged below the third evaporator, the fourth spray pipe is arranged below the second refrigerant water receiving tray, the fifth spray pipe is arranged on the lower side of the fourth spray pipe, and the absorber is arranged below the fifth spray pipe;
a third heat exchange tube and a fourth heat exchange tube are arranged in the heat exchanger, the second evaporator, the U-shaped throttle tube, the first solution circulating pump, the second solution circulating pump, the refrigerant water circulating pump, the secondary refrigerant storage supply device, the secondary refrigerant circulating pump, the first condenser, the generator, the third evaporator, the absorber, the third heat exchange tube and the fourth heat exchange tube are respectively provided with an inlet end and an outlet end, the inlet end of the absorber is provided with a cooling water inlet, the outlet end of the absorber is connected with the inlet end of the first condenser through a pipeline, the outlet end of the first condenser is provided with a cooling water outlet, the outlet end of the secondary refrigerant storage supply device is connected with the inlet end of the secondary refrigerant circulating pump, the outlet end of the secondary refrigerant circulating pump is connected with the inlet end of the third evaporator, and the outlet end of the third evaporator is connected with the inlet end of the, the outlet end of the second evaporator is connected with the inlet end of the secondary refrigerant storage feeder, the outlet end of the refrigerant water circulating pump is connected with a third spraying pipe, the inlet end of the refrigerant water circulating pump is connected with a second refrigerant water receiving tray, the inlet end of the U-shaped throttle pipe is connected with a first refrigerant water receiving tray, the outlet end of the U-shaped throttle pipe is connected with the second spraying pipe, the outlet end of the second solution circulating pump is connected with a fifth spraying pipe, the inlet end of the second solution circulating pump is connected with the bottom of the evaporator generator set through a pipeline, the inlet end of the first solution circulating pump is connected with the bottom of the evaporator generator set through a pipeline, the outlet end of the first solution circulating pump is connected with the inlet end of a third heat exchange pipe, the outlet end of the third heat exchange pipe is connected with the inlet end of a second heat exchange serial pipe, and the outlet end of the second heat exchange serial pipe is connected with the inlet end of the generator, the outlet end of the generator is connected with the first spray pipe, the inlet end of the fourth heat exchange pipe is connected with the bottom of the condensation generator group through a pipeline, the outlet end of the fourth heat exchange pipe is connected with the fourth spray pipe, and the secondary refrigerant storage supply is internally provided with secondary refrigerant circulating water.
And a plurality of spray heads are arranged on the lower sides of the first spray pipe, the second spray pipe, the third spray pipe, the fourth spray pipe and the fifth spray pipe, so that the lithium bromide mixed aqueous solution is uniformly sprayed.
The condensation generator set and the evaporator generator set are both sealing structures, and the inside is guaranteed to be isolated from the outside.
A first condensing coil is arranged in the first condenser, a second condensing coil is arranged in the absorber, a heat exchange coil is arranged in the generator, and an evaporation coil is arranged in the third evaporator; effectively evaporating and condensing the lithium bromide mixed aqueous solution.
The evaporator generator set is filled with a lithium bromide mixed aqueous solution, the lithium bromide mixed aqueous solution is prepared by mixing lithium bromide, water and ethanol, and waste heat can be better utilized.
The operation principle of the invention is as follows:
the compressor of the compression condensing unit starts to work, working media in the liquid reservoir are conveyed to the oil separator by the compressor through the drying filter, the electromagnetic valve, the throttle valve, the first evaporator and the gas-liquid separator in sequence, the working media enter the first heat exchange series pipe through the oil separator, the first heat exchange series pipe conducts the temperature of the working media to the multistage heat exchange plate type heat exchanger, and the working media return to the liquid reservoir from the outlet end of the first heat exchange series pipe; when the compression condensing unit operates, the condensation waste heat recovery absorption type refrigerating system also synchronously operates, the first solution circulating pump enables the lithium bromide mixed water solution to sequentially pass through the third heat exchange tube and the second heat exchange series tube, the lithium bromide mixed water solution is output from the outlet end of the second heat exchange series tube, the lithium bromide mixed water solution is heated by waste heat conducted out by the first heat exchange series tube, the heated lithium bromide mixed water solution enters the heat exchange coil, the lithium bromide mixed water solution passing through the heat exchange coil enters the first spray tube, the spray head on the lower side of the first spray tube sprays the lithium bromide mixed water solution onto the heat exchange coil, the lithium bromide mixed water solution is evaporated into water vapor, the water vapor upwards flows to the first condenser, the cooling water inlet is connected with an external cooling water pipe at the moment, the cooling water is conveyed to the cooling water inlet through external equipment, and the cooling water flows into the first condensing coil through the second condensing coil, the cooling water flows out from the cooling water outlet, the cooling water enables the first condensing coil and the second condensing coil to realize the cooling effect, when water vapor meets the first condensing coil, the water vapor is condensed into water drops after being cooled and stored in the first refrigerant water receiving tray under the action of gravity, the lithium bromide mixed aqueous solution collected in the first refrigerant water receiving tray flows into the inlet end of the U-shaped throttle pipe, the lithium bromide mixed aqueous solution flowing into the U-shaped throttle pipe enters the second spray pipe from the outlet end of the U-shaped throttle pipe, the spray head at the lower side of the second spray pipe sprays the lithium bromide mixed aqueous solution onto the evaporation coil, the refrigerant circulating water flows in the evaporation coil, the lithium bromide mixed aqueous solution and the refrigerant circulating water flowing in the evaporation coil generate heat exchange, the lithium bromide mixed aqueous solution absorbs heat to generate water vapor, in order to further enable the lithium bromide mixed aqueous solution to absorb the heat of the refrigerant circulating water in the evaporation coil, collecting the lithium bromide mixed aqueous solution which is not evaporated on a second refrigerant water receiving tray, pressurizing by a refrigerant water circulating pump, enabling the lithium bromide mixed aqueous solution which is not evaporated to be sprayed to the evaporation coil pipe through a spray header on the lower side of a third spray pipe again, continuously absorbing the heat of secondary refrigerant circulating water in the evaporation coil pipe, enabling the lithium bromide mixed aqueous solution to be completely evaporated into water vapor, enabling the evaporated water vapor to encounter a second condensation coil pipe to be cooled and condensed into water beads, enabling the water beads to fall to the bottom of an absorber, continuously pressurizing the lithium bromide mixed aqueous solution at the bottom of the absorber by a second solution circulating pump, enabling the pressurized lithium bromide mixed aqueous solution to enter a fifth spray pipe, enabling the spray header on the lower side of the fifth spray pipe to spray the lithium bromide mixed aqueous solution to the second condensation coil pipe, continuously absorbing the steam evaporated by the evaporation coil pipe, and generating a large amount of heat after the lithium bromide mixed aqueous solution absorbs the water vapor, the heat is taken away by cooling water in the second condensation coil pipe, so that the lithium bromide mixed aqueous solution becomes dilute; the lithium bromide mixed aqueous solution which is not vaporized at the bottom of the generator conducts waste heat to a third heat exchange tube through a fourth heat exchange tube, the lithium bromide mixed aqueous solution which passes through the fourth heat exchange tube enters a fourth spray pipe, a spray head at the lower side of the fourth spray pipe sprays the lithium bromide mixed aqueous solution to a second condensation coil, the lithium bromide mixed aqueous solution which falls from the bottom of the generator is cooled, the lithium bromide mixed aqueous solution at the bottom of an absorber is pumped to the inlet end of a second heat exchange serial pipe through a first solution circulating pump, the lithium bromide mixed aqueous solution which enters the second heat exchange serial pipe is heated again, and the heated lithium bromide mixed aqueous solution enters a heat exchange coil to realize circulation; the air extractor can completely extract the air in the condensation generator set and the evaporator generator set.
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.
Claims (5)
1. An efficiency-enhancing emission-reducing energy-saving compressor unit for freezing and refrigeration comprises a compression condensing unit and a condensation waste heat recovery absorption type refrigerating system, and is characterized in that the compression condensing unit comprises a compressor, an oil separator, a multi-stage heat exchange plate type heat exchanger, a liquid reservoir, a drying filter, an electromagnetic valve, a throttle valve, a first evaporator and a gas-liquid separator, and the condensation waste heat recovery absorption type refrigerating system comprises a condensation generator set, an evaporator generator set, a second evaporator, a heat exchanger, a U-shaped throttle pipe, a first solution circulating pump, a second solution circulating pump, a refrigerant water circulating pump, an air extractor, a secondary refrigerant storage supplier and a secondary refrigerant circulating pump;
the multistage heat exchange plate type heat exchanger is internally provided with a first heat exchange serial pipe and a second heat exchange serial pipe, the compressor, the oil separator, the liquid reservoir, the drying filter, the electromagnetic valve, the throttle valve, the first evaporator, the gas-liquid separator, the first heat exchange serial pipe and the second heat exchange serial pipe are respectively provided with an inlet end and an outlet end, the outlet end of the compressor is connected with the inlet end of the oil separator, the outlet end of the oil separator is connected with the inlet end of the first heat exchange serial pipe, the outlet end of the first heat exchange serial pipe is connected with the inlet end of the liquid reservoir, the outlet end of the liquid reservoir is connected with the inlet end of the drying filter, the outlet end of the drying filter is connected with the inlet end of the electromagnetic valve, the outlet end of the electromagnetic valve is connected with the inlet end of the throttle valve, the outlet end of the throttle valve is connected with the inlet, the outlet end of the gas-liquid separator is connected with the inlet end of the compressor;
the air extractor is arranged outside the condensation generator set, the upper ends of the condensation generator set and the evaporator generator set are respectively provided with an air extracting pipe, the air extracting pipes at the upper ends of the condensation generator set and the evaporator generator set are respectively connected with the air extractor, the interior of the condensation generator set is provided with a first condenser, a first refrigerant water receiving tray, a first spray pipe and a generator, the first condenser is arranged at the upper side of the interior of the condensation generator set, the first refrigerant water receiving tray is arranged below the first condenser, the first spray pipe is arranged below the first refrigerant water receiving tray, the generator is arranged below the first spray pipe, the interior of the evaporator generator set is provided with a second spray pipe, a third evaporator, a second refrigerant water receiving tray, a fourth spray pipe, a fifth spray pipe and an absorber, the second spray pipe is arranged at the upper side of the interior of the evaporator generator set, the third spray pipe is arranged on the lower side of the second spray pipe, the third evaporator is arranged below the third spray pipe, the second refrigerant water receiving tray is arranged below the third evaporator, the fourth spray pipe is arranged below the second refrigerant water receiving tray, the fifth spray pipe is arranged on the lower side of the fourth spray pipe, and the absorber is arranged below the fifth spray pipe;
a third heat exchange tube and a fourth heat exchange tube are arranged in the heat exchanger, the second evaporator, the U-shaped throttle tube, the first solution circulating pump, the second solution circulating pump, the refrigerant water circulating pump, the secondary refrigerant storage supply device, the secondary refrigerant circulating pump, the first condenser, the generator, the third evaporator, the absorber, the third heat exchange tube and the fourth heat exchange tube are respectively provided with an inlet end and an outlet end, the inlet end of the absorber is provided with a cooling water inlet, the outlet end of the absorber is connected with the inlet end of the first condenser through a pipeline, the outlet end of the first condenser is provided with a cooling water outlet, the outlet end of the secondary refrigerant storage supply device is connected with the inlet end of the secondary refrigerant circulating pump, the outlet end of the secondary refrigerant circulating pump is connected with the inlet end of the third evaporator, and the outlet end of the third evaporator is connected with the inlet end of the, the outlet end of the second evaporator is connected with the inlet end of the secondary refrigerant storage feeder, the outlet end of the refrigerant water circulating pump is connected with a third spraying pipe, the inlet end of the refrigerant water circulating pump is connected with a second refrigerant water receiving tray, the inlet end of the U-shaped throttle pipe is connected with a first refrigerant water receiving tray, the outlet end of the U-shaped throttle pipe is connected with the second spraying pipe, the outlet end of the second solution circulating pump is connected with a fifth spraying pipe, the inlet end of the second solution circulating pump is connected with the bottom of the evaporator generator set through a pipeline, the inlet end of the first solution circulating pump is connected with the bottom of the evaporator generator set through a pipeline, the outlet end of the first solution circulating pump is connected with the inlet end of a third heat exchange pipe, the outlet end of the third heat exchange pipe is connected with the inlet end of a second heat exchange serial pipe, and the outlet end of the second heat exchange serial pipe is connected with the inlet end of the generator, the outlet end of the generator is connected with the first spray pipe, the inlet end of the fourth heat exchange pipe is connected with the bottom of the condensation generator group through a pipeline, the outlet end of the fourth heat exchange pipe is connected with the fourth spray pipe, and the secondary refrigerant storage supply is internally provided with secondary refrigerant circulating water.
2. The efficiency-enhancing emission-reducing energy-saving compressor unit for freezing and refrigerating as claimed in claim 1, wherein a plurality of spray headers are arranged at the lower sides of the first spray pipe, the second spray pipe, the third spray pipe, the fourth spray pipe and the fifth spray pipe.
3. The efficiency-enhancing emission-reducing energy-saving compressor unit for freezing and refrigerating as claimed in claim 1, wherein the condensation generator set and the evaporator generator set are both sealed structures.
4. The efficiency-enhancing emission-reducing energy-saving compressor unit for freezing and refrigerating as claimed in claim 1, wherein a first condensing coil is arranged in the first condenser, a second condensing coil is arranged in the absorber, a heat exchange coil is arranged in the generator, and an evaporating coil is arranged in the third evaporator.
5. The synergistic emission-reducing energy-saving compressor unit for freezing and refrigerating as claimed in claim 1, wherein the evaporator generator set is filled with a lithium bromide mixed aqueous solution, and the lithium bromide mixed aqueous solution is prepared by mixing lithium bromide, water and ethanol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010068646.9A CN111174463A (en) | 2020-01-21 | 2020-01-21 | Synergistic emission reduction energy-saving compressor unit for freezing and refrigerating |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010068646.9A CN111174463A (en) | 2020-01-21 | 2020-01-21 | Synergistic emission reduction energy-saving compressor unit for freezing and refrigerating |
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| CN111174463A true CN111174463A (en) | 2020-05-19 |
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| CN202010068646.9A Pending CN111174463A (en) | 2020-01-21 | 2020-01-21 | Synergistic emission reduction energy-saving compressor unit for freezing and refrigerating |
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|---|---|---|---|---|
| JPH07151417A (en) * | 1993-11-30 | 1995-06-16 | Nippondenso Co Ltd | Engine exhaust heat recovery/absorption cold/hot water supplier |
| CN103528264A (en) * | 2012-07-03 | 2014-01-22 | 中国科学院工程热物理研究所 | Combined type refrigeration system and method based on coupling between direct cycle and reverse cycle |
| CN104990299A (en) * | 2015-07-22 | 2015-10-21 | 烟台荏原空调设备有限公司 | Second-kind absorption heat pump |
| CN208108536U (en) * | 2018-03-29 | 2018-11-16 | 松下制冷（大连）有限公司 | A kind of low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system |
| CN208504785U (en) * | 2018-05-04 | 2019-02-15 | 上海名联供应链管理有限公司 | The freezer condensation waste heat absorption system complementary with solar energy |
| CN211782086U (en) * | 2020-01-21 | 2020-10-27 | 浙江高翔工贸有限公司 | Synergistic emission reduction energy-saving compressor unit for freezing and refrigerating |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07151417A (en) * | 1993-11-30 | 1995-06-16 | Nippondenso Co Ltd | Engine exhaust heat recovery/absorption cold/hot water supplier |
| CN103528264A (en) * | 2012-07-03 | 2014-01-22 | 中国科学院工程热物理研究所 | Combined type refrigeration system and method based on coupling between direct cycle and reverse cycle |
| CN104990299A (en) * | 2015-07-22 | 2015-10-21 | 烟台荏原空调设备有限公司 | Second-kind absorption heat pump |
| CN208108536U (en) * | 2018-03-29 | 2018-11-16 | 松下制冷（大连）有限公司 | A kind of low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system |
| CN208504785U (en) * | 2018-05-04 | 2019-02-15 | 上海名联供应链管理有限公司 | The freezer condensation waste heat absorption system complementary with solar energy |
| CN211782086U (en) * | 2020-01-21 | 2020-10-27 | 浙江高翔工贸有限公司 | Synergistic emission reduction energy-saving compressor unit for freezing and refrigerating |
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