CN111174462A - Efficiency-improving emission-reducing energy-saving central air conditioner - Google Patents
Efficiency-improving emission-reducing energy-saving central air conditioner Download PDFInfo
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- CN111174462A CN111174462A CN202010068634.6A CN202010068634A CN111174462A CN 111174462 A CN111174462 A CN 111174462A CN 202010068634 A CN202010068634 A CN 202010068634A CN 111174462 A CN111174462 A CN 111174462A
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- heat exchange
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
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- Thermal Sciences (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
An efficiency-enhancing emission-reducing energy-saving central air conditioner belongs to the technical field of central air conditioning equipment; lithium bromide is used as an absorbent, water is used as a refrigerant, a condensing heat source of a compression condensing unit is utilized, a heat source is used for exchanging cold, the energy efficiency is improved to five times compared with the original three times, the condensing heat source of the compression condensing unit of the original central air conditioner is collected and utilized, the condensing heat source is not discharged into the environment, the environmental temperature rise is not influenced, and the effects of synergy and emission reduction are realized.
Description
Technical Field
The invention belongs to the technical field of central air-conditioning equipment, and particularly relates to an efficiency-improving emission-reducing energy-saving central air conditioner.
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 a synergistic emission-reducing energy-saving central air conditioner.
The technical problem of the invention is mainly solved by the following technical scheme: an efficiency-improving emission-reducing energy-saving central air conditioner comprises a compression condensing unit and a condensation heat recovery system, wherein the compression condensing unit comprises a compressor, a first heat exchanger, a throttling device, a first evaporator and a vapor-liquid separator, and the condensation heat recovery system comprises a generator, an evaporation absorber group, a second heat exchanger, a solution circulating pump, a U-shaped throttling pipe, an air extractor and a chilled water circulating pump;
a first heat exchange tube and a second heat exchange tube are arranged inside the first heat exchanger, a first heat exchange tube and a second heat exchange tube are arranged inside the first evaporator, the compressor, the first heat exchange tube, the second heat exchange tube, the first heat exchange tube and the second heat exchange tube, the throttling device, the first evaporator and the vapor-liquid separator 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 first heat exchange tube, the outlet end of the first heat exchange tube is connected with the inlet end of the throttling device, the outlet end of the throttling device is connected with the inlet end of the first heat exchange tube, the outlet end of the first heat exchange tube is connected with the inlet end of the vapor-liquid separator, and the outlet end of the vapor-liquid;
the inside of generator is equipped with first shower and generator coil, the right side of generator is equipped with the condenser, the condenser includes condenser entrance point, condenser exit end, condenser heat exchange tube and condenser heat transfer fin, the upper end and the condenser entrance connection of condensation heat exchange tube, the lower extreme and the condenser exit end of condensation heat exchange tube are connected, condenser heat transfer fin locates the outside of condenser heat exchange tube, the inside of evaporation absorber group is equipped with second shower, evaporimeter coil, third shower and absorber coil, be equipped with third heat exchange tube and fourth heat exchange tube in the second heat exchanger, third heat exchange tube, fourth heat exchange tube, generator coil, evaporimeter coil, absorber coil, solution circulating pump, U-shaped throttle pipe and refrigerated water circulating pump all are equipped with entrance point and exit end, the upside of generator inside is located to first shower, the below of first shower is located to the generator coil, the inside upside of evaporator group is located to the second shower, the below of second shower is located to the evaporator coil, the below of evaporator coil is located to the third shower, the below of third shower is located to the absorber coil, the entrance point of generator coil is connected with the exit end of second heat exchange pipe, the exit end of generator coil is connected with first shower, the left side of condenser entrance point is connected with the upper right side of generator, the condenser exit end is connected with the entrance point of U-shaped throttle pipe, the exit end and the second shower of U-shaped throttle pipe are connected, the exit end and the entrance point of second heat exchange pipe of evaporator coil are connected, the exit end and the entrance point of refrigerated water circulating pump of second heat exchange pipe are connected, the exit end of refrigerated water circulating pump and the entrance connection of evaporator coil, the entrance point of solution circulating pump and the bottom of evaporation absorber group are connected, the exit end of solution circulating pump and the entrance connection of absorber coil, the right side of evaporation absorber group is equipped with absorber cooling coil, absorber cooling coil is equipped with cooling coil entrance point and cooling coil exit end, the exit end and the cooling coil entrance connection of absorber coil, the cooling coil exit end and the entrance connection of third heat exchange pipe, the outside of absorber cooling coil is equipped with absorber heat transfer fin, the right side of absorber heat transfer fin and condenser heat transfer fin all is equipped with cooling blower, the exit end of third heat exchange pipe and the entrance connection of second heat exchange pipe, the entrance end of fourth heat exchange pipe is connected with the bottom of generator, the exit end of the fourth heat exchange pipe is connected with the third spray pipe, the lower side of the first spray pipe is provided with a plurality of generator nozzles, the lower side of the second spray pipe is provided with a plurality of evaporator dripping spray heads, the lower side of the third spray pipe is provided with an absorber dripping spray head, the upper side of the generator and the upper side of the evaporator absorber group are both provided with an exhaust pipe, and the exhaust pipe is connected with an air extractor.
Preferably, the generator and the evaporator-absorber set are both sealed structures.
Preferably, the evaporation absorber set is filled with a lithium bromide aqueous solution, and the lithium bromide aqueous solution is prepared by mixing lithium bromide and water.
The invention has the following beneficial effects:
lithium bromide is used as an absorbent, water is used as a refrigerant, a condensing heat source of a compression condensing unit is utilized, a heat source is used for exchanging cold, the energy efficiency is improved to five times compared with the original three times, the condensing heat source of the compression condensing unit of the original central air conditioner is collected and utilized, the condensing heat source is not discharged into the environment, the environmental temperature rise is not influenced, and the effects of synergy and emission reduction are realized.
Drawings
FIG. 1 is a schematic view of a structural connection of the present invention.
In the figure: 1. a compressor; 2. a first heat exchanger; 3. a throttling device; 4. a first evaporator; 5. a vapor-liquid separator; 6. a generator; 7. an evaporation absorber group; 8. a second heat exchanger; 9. a solution circulating pump; 10. a U-shaped throttle tube; 11. an air extraction device; 12. a chilled water circulation pump; 13. a first heat exchange tube; 14. a second heat exchange tube; 15. a first heat exchange tube; 16. a second heat exchange tube; 17. a first shower pipe; 18. a generator coil; 20. an inlet end of a condenser; 21. the outlet end of the condenser; 22. a condenser heat exchange tube; 23. condenser heat exchange fins; 24. a second shower pipe; 25. an evaporator coil; 26. a third shower pipe; 27. an absorber coil; 28. a third heat exchange tube; 29. a fourth heat exchange tube; 30. an absorber cooling coil; 31. a cooling coil inlet end; 32. the outlet end of the cooling coil; 33. absorber heat exchange fins; 34. a cooling fan; 35. a generator nozzle; 36. an evaporator dripping head; 37. an absorber dripping head; 38. an air exhaust pipe; 29. (ii) a 40. (ii) a 41. (ii) a
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 central air conditioner is shown in figure 1 and comprises a compression condensing unit and a condensation heat recovery system, wherein the compression condensing unit comprises a compressor, a first heat exchanger, a throttling device, a first evaporator and a vapor-liquid separator, and the condensation heat recovery system comprises a generator, an evaporation absorber group, a second heat exchanger, a solution circulating pump, a U-shaped throttling pipe, an air extractor and a chilled water circulating pump;
a first heat exchange tube and a second heat exchange tube are arranged inside the first heat exchanger, a first heat exchange tube and a second heat exchange tube are arranged inside the first evaporator, the compressor, the first heat exchange tube, the second heat exchange tube, the first heat exchange tube and the second heat exchange tube, the throttling device, the first evaporator and the vapor-liquid separator 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 first heat exchange tube, the outlet end of the first heat exchange tube is connected with the inlet end of the throttling device, the outlet end of the throttling device is connected with the inlet end of the first heat exchange tube, the outlet end of the first heat exchange tube is connected with the inlet end of the vapor-liquid separator, and the outlet end of the vapor-liquid;
the inside of generator is equipped with first shower and generator coil, the right side of generator is equipped with the condenser, the condenser includes condenser entrance point, condenser exit end, condenser heat exchange tube and condenser heat transfer fin, the upper end and the condenser entrance connection of condensation heat exchange tube, the lower extreme and the condenser exit end of condensation heat exchange tube are connected, condenser heat transfer fin locates the outside of condenser heat exchange tube, the inside of evaporation absorber group is equipped with second shower, evaporimeter coil, third shower and absorber coil, be equipped with third heat exchange tube and fourth heat exchange tube in the second heat exchanger, third heat exchange tube, fourth heat exchange tube, generator coil, evaporimeter coil, absorber coil, solution circulating pump, U-shaped throttle pipe and refrigerated water circulating pump all are equipped with entrance point and exit end, the upside of generator inside is located to first shower, the below of first shower is located to the generator coil, the inside upside of evaporator group is located to the second shower, the below of second shower is located to the evaporator coil, the below of evaporator coil is located to the third shower, the below of third shower is located to the absorber coil, the entrance point of generator coil is connected with the exit end of second heat exchange pipe, the exit end of generator coil is connected with first shower, the left side of condenser entrance point is connected with the upper right side of generator, the condenser exit end is connected with the entrance point of U-shaped throttle pipe, the exit end and the second shower of U-shaped throttle pipe are connected, the exit end and the entrance point of second heat exchange pipe of evaporator coil are connected, the exit end and the entrance point of refrigerated water circulating pump of second heat exchange pipe are connected, the exit end of refrigerated water circulating pump and the entrance connection of evaporator coil, the entrance point of solution circulating pump and the bottom of evaporation absorber group are connected, the exit end of solution circulating pump and the entrance connection of absorber coil, the right side of evaporation absorber group is equipped with absorber cooling coil, absorber cooling coil is equipped with cooling coil entrance point and cooling coil exit end, the exit end and the cooling coil entrance connection of absorber coil, the cooling coil exit end and the entrance connection of third heat exchange pipe, the outside of absorber cooling coil is equipped with absorber heat transfer fin, the right side of absorber heat transfer fin and condenser heat transfer fin all is equipped with cooling blower, the exit end of third heat exchange pipe and the entrance connection of second heat exchange pipe, the entrance end of fourth heat exchange pipe is connected with the bottom of generator, the exit end and the third shower of fourth hot exchange pipe are connected, the downside of first shower is equipped with a plurality of generator shower nozzles, the downside of second shower is equipped with a plurality of evaporimeters and drips and drenches the head, the downside of third shower is equipped with the absorber and drips and drenches the head, the upside of generator and the upside of evaporation absorber group all are equipped with the exhaust tube, air exhaust device is connected to the exhaust tube, be equipped with endless refrigerated water in the evaporimeter coil.
The generator and the evaporation absorber set are both sealed structures, so that the lithium bromide aqueous solution can better play a role.
The evaporation absorber group is filled with a lithium bromide aqueous solution, the lithium bromide aqueous solution is prepared by mixing lithium bromide and water, and the lithium bromide aqueous solution can more fully utilize waste heat.
The operation principle of the invention is as follows:
the compressor of the compression condensing unit starts to operate, the compressor conveys the compressed high-temperature working medium to the inlet end of the first heat exchange pipe, the heat exchanger absorbs the heat of the working medium, and then the working medium returns to the compressor through the throttling device, the first heat exchange pipe and the vapor-liquid separator; when the compression condensing unit works, the compression condensing unit synchronously operates, chilled water is circularly pumped by a chilled water circulating pump, so that the chilled water circulates in the chilled water circulating pump, an evaporator coil and a second heat exchange pipe, a solution circulating pump pumps and presses a lithium bromide aqueous solution in an evaporation absorber group to an absorber coil, the lithium bromide aqueous solution enters the absorber cooling coil through the absorber coil, the lithium bromide aqueous solution radiates residual temperature to heat exchange fins of the absorber in the absorber cooling coil, a cooling fan blows and disperses the residual temperature on the heat exchange fins of the absorber, the cooled lithium bromide aqueous solution enters a third heat exchange pipe, the lithium bromide aqueous solution is sent to the second heat exchange pipe through the heat exchange pipe, the second heat exchange pipe absorbs heat radiated by the first heat exchange pipe, so that the temperature of the lithium bromide aqueous solution entering the second heat exchange pipe is increased, and the lithium bromide aqueous solution with the increased temperature enters a generator coil, the lithium bromide water solution enters the first spraying pipe through the generator coil pipe, the lithium bromide water solution is sprayed to the generator coil pipe through the generator spray head, the lithium bromide water solution sprayed to the generator coil pipe immediately generates steam, the dilute solution is changed into a concentrated solution and is stored at the bottom of the generator, the concentrated solution flows to the dripping and sprinkling head of the absorber after being subjected to heat and cold exchange by the fourth heat exchange tube under the action of gravity, the concentrated solution is sprinkled on the coil pipe of the absorber through the dripping and sprinkling head of the absorber, the water vapor in the absorber coil is absorbed by the concentrated solution to become a dilute solution and generate a large amount of heat, the lithium bromide aqueous solution is continuously absorbed by the solution circulating pump in the absorber coil, the lithium bromide aqueous solution passes through the absorber cooling coil, the heat on the heat exchange fins of the absorber is taken away by the fan, and the lithium bromide aqueous solution after heat dissipation and cooling enters the heat exchanger after being subjected to heat exchange with the concentrated solution from the bottom of the generator through the second heat exchanger; in addition, the lithium bromide water solution in the generator is heated and evaporated to generate a large amount of water vapor which flows to the condenser under the attraction of temperature difference, the refrigerant water is condensed into refrigerant water in the heat exchange tube of the condenser and stored at the bottom of the condenser, after the refrigerant water at the bottom of the condenser is throttled by the U-shaped throttle tube, the refrigerant water is dripped and drenched on the evaporator coil through the evaporator dripping and sprinkling head, the chilled water in the evaporator coil circulates, the refrigerant water absorbs the heat of the chilled water in the evaporator coil and then is evaporated, the temperature of the chilled water is reduced, the refrigerant water absorbs the heat and then is evaporated into water vapor, the water vapor in the evaporation absorber group is absorbed by the lithium bromide concentrated solution, the lithium bromide concentrated solution generates absorption heat after absorbing the water vapor, the heat is transferred to the heat exchange fins of the absorber, and the heat on the heat exchange fins of the absorber is taken away by the cooling fan, so that the purposes of improving efficiency, reducing emission and saving energy by recycling the condensation heat and waste heat of the central air-conditioning compression condensing unit are achieved; the air extractor can completely extract the redundant air in the generator and the evaporation absorption 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 (3)
1. An efficiency-improving emission-reducing energy-saving central air conditioner comprises a compression condensing unit and a condensation heat recovery system, and is characterized in that the compression condensing unit comprises a compressor, a first heat exchanger, a throttling device, a first evaporator and a vapor-liquid separator, and the condensation heat recovery system comprises a generator, an evaporation absorber group, a second heat exchanger, a solution circulating pump, a U-shaped throttling pipe, an air extractor and a chilled water circulating pump;
a first heat exchange tube and a second heat exchange tube are arranged inside the first heat exchanger, a first heat exchange tube and a second heat exchange tube are arranged inside the first evaporator, the compressor, the first heat exchange tube, the second heat exchange tube, the first heat exchange tube and the second heat exchange tube, the throttling device, the first evaporator and the vapor-liquid separator 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 first heat exchange tube, the outlet end of the first heat exchange tube is connected with the inlet end of the throttling device, the outlet end of the throttling device is connected with the inlet end of the first heat exchange tube, the outlet end of the first heat exchange tube is connected with the inlet end of the vapor-liquid separator, and the outlet end of the vapor-liquid;
the inside of generator is equipped with first shower and generator coil, the right side of generator is equipped with the condenser, the condenser includes condenser entrance point, condenser exit end, condenser heat exchange tube and condenser heat transfer fin, the upper end and the condenser entrance connection of condensation heat exchange tube, the lower extreme and the condenser exit end of condensation heat exchange tube are connected, condenser heat transfer fin locates the outside of condenser heat exchange tube, the inside of evaporation absorber group is equipped with second shower, evaporimeter coil, third shower and absorber coil, be equipped with third heat exchange tube and fourth heat exchange tube in the second heat exchanger, third heat exchange tube, fourth heat exchange tube, generator coil, evaporimeter coil, absorber coil, solution circulating pump, U-shaped throttle pipe and refrigerated water circulating pump all are equipped with entrance point and exit end, the upside of generator inside is located to first shower, the below of first shower is located to the generator coil, the inside upside of evaporator group is located to the second shower, the below of second shower is located to the evaporator coil, the below of evaporator coil is located to the third shower, the below of third shower is located to the absorber coil, the entrance point of generator coil is connected with the exit end of second heat exchange pipe, the exit end of generator coil is connected with first shower, the left side of condenser entrance point is connected with the upper right side of generator, the condenser exit end is connected with the entrance point of U-shaped throttle pipe, the exit end and the second shower of U-shaped throttle pipe are connected, the exit end and the entrance point of second heat exchange pipe of evaporator coil are connected, the exit end and the entrance point of refrigerated water circulating pump of second heat exchange pipe are connected, the exit end of refrigerated water circulating pump and the entrance connection of evaporator coil, the entrance point of solution circulating pump and the bottom of evaporation absorber group are connected, the exit end of solution circulating pump and the entrance connection of absorber coil, the right side of evaporation absorber group is equipped with absorber cooling coil, absorber cooling coil is equipped with cooling coil entrance point and cooling coil exit end, the exit end and the cooling coil entrance connection of absorber coil, the cooling coil exit end and the entrance connection of third heat exchange pipe, the outside of absorber cooling coil is equipped with absorber heat transfer fin, the right side of absorber heat transfer fin and condenser heat transfer fin all is equipped with cooling blower, the exit end of third heat exchange pipe and the entrance connection of second heat exchange pipe, the entrance end of fourth heat exchange pipe is connected with the bottom of generator, the exit end and the third shower of fourth hot exchange pipe are connected, the downside of first shower is equipped with a plurality of generator shower nozzles, the downside of second shower is equipped with a plurality of evaporimeters and drips and drenches the head, the downside of third shower is equipped with the absorber and drips and drenches the head, the upside of generator and the upside of evaporation absorber group all are equipped with the exhaust tube, air exhaust device is connected to the exhaust tube, be equipped with endless refrigerated water in the evaporimeter coil.
2. The central air conditioner of claim 1, wherein the generator and the evaporator absorber set are both sealed.
3. The central air-conditioner of claim 1, characterized in that the evaporator-absorber set is filled with lithium bromide aqueous solution, and the lithium bromide aqueous solution is prepared by mixing lithium bromide and water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010068634.6A CN111174462A (en) | 2020-01-21 | 2020-01-21 | Efficiency-improving emission-reducing energy-saving central air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010068634.6A CN111174462A (en) | 2020-01-21 | 2020-01-21 | Efficiency-improving emission-reducing energy-saving central air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN111174462A true CN111174462A (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010068634.6A Pending CN111174462A (en) | 2020-01-21 | 2020-01-21 | Efficiency-improving emission-reducing energy-saving central air conditioner |
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| Country | Link |
|---|---|
| CN (1) | CN111174462A (en) |
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2020
- 2020-01-21 CN CN202010068634.6A patent/CN111174462A/en active Pending
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Inventor after: Liang Dinghao Inventor after: Liang Leijun Inventor after: Liang Miaochun Inventor after: Gao Xiang Inventor after: Tang Lijiang Inventor after: Gao Yongfeng Inventor before: Liang Dinghao Inventor before: Liang Leijun Inventor before: Liang Miaochun Inventor before: Gao Xiang Inventor before: Tang Lijiang Inventor before: Gao Yongfeng |
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