CN112944710A - Compressed air conditioning system - Google Patents
Compressed air conditioning system Download PDFInfo
- Publication number
- CN112944710A CN112944710A CN202110263418.1A CN202110263418A CN112944710A CN 112944710 A CN112944710 A CN 112944710A CN 202110263418 A CN202110263418 A CN 202110263418A CN 112944710 A CN112944710 A CN 112944710A
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- air
- heat exchanger
- conditioning system
- port
- air conditioning
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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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/06—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using expanders
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
Abstract
The invention provides a compressed air conditioning system which comprises a pressurization expansion assembly, wherein an air compressor is communicated with an air outlet of an indoor space, an expander is communicated with a first exhaust port of the air compressor through a second air suction port, the expander is communicated with an air supply port of the indoor space through a second exhaust port, a first heat exchanger is arranged on a pipeline between the first exhaust port and the second air suction port, the compressed air conditioning system also comprises a heat exchange driving fan, the heat exchange driving fan can drive outdoor air to enter a first flow path in the first heat exchanger, and the heat exchange driving fan can also introduce waste gas in the indoor space into the first flow path. According to the invention, the waste gas residual energy can be fully utilized to cool the compressed gas, the energy-saving and environment-friendly performance of the air conditioning system is improved while the heat exchange efficiency of the first heat exchanger is improved, in addition, on the premise of the same refrigeration capacity, the required amount of the air amount in the first flow path can be effectively reduced by utilizing the waste gas residual energy, and the energy consumption of the heat exchange driving fan can be effectively reduced.
Description
Technical Field
The invention belongs to the technical field of air conditioning, and particularly relates to a compressed air conditioning system.
Background
At present, a compressed refrigerant refrigeration cycle system is mainly adopted by an air conditioner, namely, the air conditioner of a room is realized by utilizing the phase change latent heat of a refrigerant, most refrigerants of the air conditioner system have harm to the environment, such as greenhouse effect and ozone hole, in order to overcome the defect, the prior art discloses an air conditioner system which adopts a supercharging expansion component to compress and expand air to realize refrigeration or heating, in order to prevent a user from being in an indoor state for a long time and being harmed to the health, an exhaust fan is often arranged in the air conditioner system, so that indoor waste gas is exhausted and fresh air is introduced, and the cold quantity of the waste gas is not necessarily utilized.
Disclosure of Invention
Therefore, the invention provides a compressed air conditioning system to overcome the defect that the residual energy of the waste gas is not utilized when the waste gas in the indoor space is directly discharged in the prior art.
In order to solve the above problems, the present invention provides a compressed air conditioning system, comprising a booster expansion unit, the pressurizing expansion component comprises an air compressor and an expander which are connected through a rotating shaft of a motor, the air compressor is communicated with an air outlet of the indoor space through a first air suction port, the expander is communicated with the first exhaust port of the air compressor through a second air suction port, the expander is communicated with the air supply port of the indoor space through a second exhaust port, a first heat exchanger is arranged on a pipeline between the first exhaust port and the second air suction port, and the heat exchanger also comprises a heat exchange driving fan, the heat exchange driving fan can drive outdoor air into the first flow path in the first heat exchanger, so that the air in the first flow path can exchange heat with the air flowing out of the air compressor, the heat exchange driving fan can introduce the exhaust gas in the indoor space into the first flow path.
Preferably, a first mixing chamber is provided on the intake side pipe of the first flow path, the first mixing chamber having an exhaust gas introduction port communicating with an exhaust gas discharge port of the indoor space.
Preferably, a first flow regulating air valve is arranged on a pipeline between the waste gas introducing port and the waste gas discharging port; and/or a second flow regulating air valve is arranged on an outdoor air inlet path of the first mixing cavity.
Preferably, a first air flow in a first pipeline between the air outlet and the first air suction opening can introduce fresh air into the first pipeline; or the second air flow in the second pipeline between the second exhaust port and the air supply port can introduce fresh air into the second pipeline.
Preferably, a third mixing cavity is arranged on the first pipeline, and the third mixing cavity is provided with a first fresh air inlet; or a second mixing cavity is arranged on the second pipeline, and the second mixing cavity is provided with a second fresh air inlet.
Preferably, a first air supply fan is arranged in a fresh air introducing pipeline of the second fresh air introducing port, or a second air supply fan is arranged in a pipeline between the second mixing cavity and the air supplying port.
Preferably, a third flow rate adjusting air valve is arranged in a pipeline between the third mixing cavity and the air outlet, and/or a fourth flow rate adjusting air valve is arranged in a fresh air introducing pipeline of the first fresh air introducing port.
Preferably, the indoor space is further provided with an air return opening, and the air return opening is communicated with the second mixing cavity.
Preferably, a return air fan is arranged in a pipeline between the return air inlet and the second mixing cavity.
Preferably, a second heat exchanger is arranged on a pipeline between the first heat exchanger and the second air suction port, air in the pipeline between the second air outlet and the air supply port can exchange heat with air in the pipeline between the first heat exchanger and the second air suction port in the second heat exchanger, and a gas-liquid separator is arranged on the pipeline between the second heat exchanger and the second air suction port.
Preferably, a third heat exchanger is further arranged on a pipeline between the first heat exchanger and the second heat exchanger, and air in the pipeline between the gas-liquid separator and the second suction port can exchange heat with air in the pipeline between the first heat exchanger and the second heat exchanger in the third heat exchanger.
Preferably, the first mixing chamber further has a condensed water introduction port communicating with a drain port of the gas-liquid separator.
Preferably, the fan blades of the heat exchange driving fan are sleeved on a rotating shaft of the motor.
According to the compressed air conditioning system provided by the invention, waste gas in an indoor space is introduced into the first flow path, so that the compressed gas can be cooled by fully utilizing waste gas energy, the heat exchange efficiency of the first heat exchanger is improved, the energy-saving and environment-friendly performance of the air conditioning system is improved, in addition, on the premise of the same refrigeration capacity, the required amount of air in the first flow path can be effectively reduced by utilizing the waste gas energy, and the energy consumption of the heat exchange driving fan can be effectively reduced.
Drawings
FIG. 1 is a schematic diagram of a compressed air conditioning system according to an embodiment of the present invention, with arrows showing the direction of airflow;
FIG. 2 is a schematic view of another system of FIG. 1, with arrows showing the direction of airflow;
FIG. 3 is a schematic diagram of a further system of FIG. 1, with arrows showing the direction of airflow;
FIG. 4 is a schematic view of a compressed air conditioning system according to yet another embodiment of the present invention, with arrows showing the direction of airflow;
FIG. 5 is a schematic view of another system of FIG. 4, with arrows showing the direction of airflow;
FIG. 6 is a schematic diagram of the system of FIG. 4 with arrows showing the direction of airflow.
The reference numerals are represented as:
10. a motor; 11. an air compressor; 12. an expander; 13. a first heat exchanger; 14. a second heat exchanger; 15. a third heat exchanger; 16. a gas-liquid separator; 21. an air outlet; 22. an air supply outlet; 23. an exhaust gas outlet; 24. an air return opening; 31. a third mixing chamber; 32. a second mixing chamber; 33. a first mixing chamber; 41. a first air supply fan; 42. a second air supply fan; 43. a third flow regulating damper; 44. a fourth flow regulating damper; 45. a first flow regulating damper; 46. a second flow regulating damper; 47. a return air fan; 5. the heat exchange drives the fan; 100. an indoor space; 200. an outdoor space.
Detailed Description
Referring to fig. 1 through 6 in combination, according to an embodiment of the present invention, there is provided a compressed air conditioning system, including a booster expansion assembly, the boosting expansion assembly comprises an air compressor 11 and an expander 12 which are connected through a rotating shaft of a motor 10, the air compressor 11 communicates with the outlet port 21 of the indoor space 100 through the first suction port, the expander 12 communicates with the first exhaust port of the air compressor 11 through a second suction port, the expander 12 communicates with the supply air outlet 22 of the indoor space 100 through a second exhaust port, a first heat exchanger 13 is arranged on a pipeline between the first exhaust port and the second suction port, the first heat exchanger 13 is used for cooling the high-temperature and high-pressure compressed gas discharged from the air compressor 11, the first air flow in the first pipeline between the air outlet 21 and the first air suction port can introduce fresh air in the outdoor space 200 into the first pipeline; alternatively, the second air flow in the second pipeline between the second exhaust port and the air supply port 22 can introduce fresh air of the outdoor space 200 into the second pipeline. In this technical scheme, through the high velocity air of first pipeline or second pipeline will outdoor space 200's new trend is penetrated and is penetrated indoor space 100 to realized the promotion of room air quality, do benefit to and guarantee user's healthy, simultaneously, the new trend is introduced and need not to set up corresponding new trend and introduce the fan alone, only utilize drawing of air supply air current to penetrate and can realize, can also reduce system's design cost when simplifying system architecture, in addition, penetrate the new trend through air supply air current and make both can mix the back and send into indoor space 100, indoor space 100's temperature fluctuation is less, guarantee user's travelling comfort.
In some embodiments, a third mixing chamber 31 is provided on the first pipeline, and the third mixing chamber 31 has a first fresh air inlet; or, be equipped with second hybrid chamber 32 on the second pipeline, second hybrid chamber 32 has the second new trend and introduces the mouth, through third hybrid chamber 31 and second hybrid chamber 32 can mix new trend and corresponding high velocity air flow at the intracavity buffering, especially are in send into indoor space 100 after mixing in second hybrid chamber 32, can make the air supply temperature more even after mixing, user's travelling comfort is further improved. In some cases, the third mixing chamber 31 and the second mixing chamber 32 may be replaced by an ejector.
Further, a first air supply fan 41 is disposed in a fresh air introducing pipeline (i.e., on the upstream side of the fresh air introducing path, the same applies below) of the second fresh air introducing port, or a second air supply fan 42 is disposed in a pipeline between the second mixing cavity 32 and the air supplying port 22, so that the fresh air introducing amount can be adjusted by adjusting the rotation speed of the first air supply fan 41 or the second air supply fan 42.
Preferably, a third flow rate adjusting air valve 43 is arranged in a pipeline between the third mixing chamber 31 and the air outlet 21 so as to adjust and control the air outlet amount in the indoor space 100, and/or a fourth flow rate adjusting air valve 44 is arranged in a fresh air introducing pipeline of the first fresh air introducing port so as to adjust and control the fresh air introducing amount in the outdoor space 200, so that a user can conveniently and reasonably adjust the fresh air introducing amount according to the fresh air requirement.
In some embodiments, a second heat exchanger 14 is disposed on the pipeline between the first heat exchanger 13 and the second suction port, the air in the pipeline between the second exhaust port and the air supply port 22 can exchange heat with the air in the pipeline between the first heat exchanger 13 and the second suction port in the second heat exchanger 14, and a gas-liquid separator 16 is disposed on the pipeline between the second heat exchanger 14 and the second suction port, in this technical scheme, the cooled compressed air discharged from the expander 12 exchanges heat with the air flow flowing out of the first heat exchanger 13 in the second heat exchanger 14, that is, the second heat exchanger 14 realizes a condenser function, can condense water vapor in the air, and is separated between the air entering the expander 12 through the gas-liquid separator 16, so as to effectively reduce the water vapor content in the compressed air, on one hand, the liquid impact damage (even the erosion of ice or frost) to the impeller in the expansion machine 12 caused by liquid drops entering the expansion machine can be prevented, on the other hand, the humidity of the air flow can be effectively reduced, and the comfort of a user is improved.
Furthermore, a third heat exchanger 15 is further disposed on a pipeline between the first heat exchanger 13 and the second heat exchanger 14, air in the pipeline between the gas-liquid separator 16 and the second suction port can exchange heat with air in the pipeline between the first heat exchanger 13 and the second heat exchanger 14 in the third heat exchanger 15, and compressed gas with a higher temperature flowing through the first heat exchanger 13 in the third heat exchanger 15 can heat compressed gas with a lower temperature flowing out of the gas-liquid separator 16, so that condensate droplets possibly remaining in the compressed gas flowing out of the gas-liquid separator 16 are heated and gasified, and the occurrence of suction liquid impact of the expander 12 is further reduced.
In some embodiments, the compressed air conditioning system further includes a heat exchange driving fan 5, and the heat exchange driving fan 5 can drive outdoor air into the first flow path in the first heat exchanger 13, so that the air in the first flow path can exchange heat with the air flowing out of the air compressor 11, in this technical scheme, the air in the outdoor space 200 efficiently cools the high-temperature and high-pressure gas discharged from the air compressor 11, so that the compressed gas enters the expander 12 for effective expansion and temperature reduction.
Furthermore, a first mixing chamber 33 is arranged on the air inlet side pipeline of the first flow path, the first mixing chamber 33 is provided with an exhaust gas introducing port, the exhaust gas introducing port is communicated with the exhaust gas outlet 23 of the indoor space 100, in the technical scheme, the exhaust gas of the indoor space 100 is introduced into the first flow path, the compressed gas can be cooled by fully utilizing the waste gas complementary energy (cold energy), the heat exchange efficiency of the first heat exchanger 13 is improved, meanwhile, the energy-saving and environment-friendly performance of the air conditioning system is improved, in addition, on the premise that the cold energy is the same, the required amount of the air amount in the first flow path can be effectively reduced by utilizing the waste gas complementary energy, and the energy consumption of the heat exchange driving fan 5 can be effectively reduced. In some embodiments, a first flow regulating damper 45 is provided on a pipeline between the exhaust gas introduction port and the exhaust gas discharge port 23; and/or, a fourth flow regulating air valve 46 is arranged on an outdoor air inlet path of the first mixing chamber 33, so that the waste gas introducing amount and the outdoor air introducing amount are controlled through the first flow regulating air valve 45 or the fourth flow regulating air valve 46.
In some embodiments, the first mixing chamber 33 further has a condensed water inlet, the condensed water inlet is communicated with the water outlet of the gas-liquid separator 16, at this time, the condensed water separated from the gas-liquid separator 16 is introduced into the first flow path by the first mixing chamber 33, and the introduced condensed water further cools the air flow in the first flow path in the form of water mist, so that efficient cooling of the compressed air flow in the second flow path is achieved, the environmental friendliness of the system can be further improved, and the energy consumption of the heat exchange driving fan 5 will be further reduced.
Preferably, the blades of the heat exchange driving fan 5 are sleeved on the rotating shaft of the motor 10, that is, the impeller of the expander 12 of the booster expansion fan assembly, the impeller of the air compressor 11, the rotor rotating shaft of the motor 10 and the blades of the heat exchange driving fan 5 are all connected to the same shaft, so that the system structure is more compact, and meanwhile, the expansion work generated by the expansion of the air in the expander 12 and the useful work generated by the motor 10 can be superposed to drive the air compressor 11 and the heat exchange driving fan 5 to do work and drive the rotation of the air compressor 11 and the heat exchange driving fan 5, so that the energy utilization rate is higher.
In some embodiments, the indoor space 100 further has a return air inlet 24, the return air inlet 24 is communicated with the second mixing cavity 32 to mix with the supply air flow to reduce the temperature difference between the supply point and the indoor space 100, so as to further improve the comfort of the user, and further, a return air fan 47 is arranged in a pipeline between the return air inlet 24 and the second mixing cavity 32, so as to improve the fluidity of the air flow in the indoor space 100 and ensure the temperature uniformity in the indoor space 100.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims (13)
1. The compressed air conditioning system is characterized by comprising a pressurization expansion assembly, wherein the pressurization expansion assembly comprises an air compressor (11) and an expansion machine (12) which are connected through a rotating shaft of a motor (10), the air compressor (11) is communicated with an air outlet (21) of an indoor space (100) through a first air suction port, the expansion machine (12) is communicated with a first air exhaust port of the air compressor (11) through a second air suction port, the expansion machine (12) is communicated with an air supply port (22) of the indoor space (100) through a second air exhaust port, a first heat exchanger (13) is arranged on a pipeline between the first air exhaust port and the second air suction port, the compressed air conditioning system further comprises a heat exchange driving fan (5), and the heat exchange driving fan (5) can drive outdoor air to enter a first flow path in the first heat exchanger (13), so that the air in the first flow path can exchange heat with the air flowing out of the air compressor (11), and the heat exchange driving fan (5) can also introduce the exhaust gas in the indoor space (100) into the first flow path.
2. The compressed air conditioning system according to claim 1, wherein a first mixing chamber (33) is provided on an intake-side pipe of the first flow path, the first mixing chamber (33) having an exhaust gas introduction port that communicates with an exhaust gas discharge port (23) of the indoor space (100).
3. A compressed air conditioning system according to claim 2 wherein a first flow regulating damper (45) is provided in the conduit between the exhaust gas inlet and the exhaust gas outlet (23); and/or a second flow regulating air valve (46) is arranged on an outdoor air inlet path of the first mixing cavity (33).
4. Compressed air conditioning system according to claim 2, characterized in that the first air flow in the first line between the outlet mouth (21) and the first suction mouth is able to introduce fresh air into the first line; or the second air flow in the second pipeline between the second exhaust port and the air supply port (22) can introduce fresh air into the second pipeline.
5. Compressed air conditioning system according to claim 4, characterized in that a third mixing chamber (31) is provided on the first line, the third mixing chamber (31) having a first fresh air intake; or a second mixing cavity (32) is arranged on the second pipeline, and the second mixing cavity (32) is provided with a second fresh air inlet.
6. The compressed air conditioning system according to claim 5, wherein a first air supply fan (41) is provided in a fresh air introduction line of the second fresh air introduction port, or a second air supply fan (42) is provided in a line between the second mixing chamber (32) and the air supply port (22).
7. Compressed air conditioning system according to claim 5, characterized in that a third flow control flap (43) is arranged in the line between the third mixing chamber (31) and the outlet opening (21) and/or a fourth flow control flap (44) is arranged in the fresh air inlet line of the first fresh air inlet opening.
8. Compressed air conditioning system according to claim 5, characterized in that said indoor space (100) also has a return air opening (24), said return air opening (24) communicating with said second mixing chamber (32).
9. Compressed air conditioning system according to claim 8, characterized in that a return air fan (47) is provided in the line between the return air inlet (24) and the second mixing chamber (32).
10. A compressed air conditioning system according to claim 4 wherein a second heat exchanger (14) is provided in the duct between the first heat exchanger (13) and the second suction opening, air in the duct between the second discharge opening and the supply air opening (22) being able to exchange heat in the second heat exchanger (14) with air in the duct between the first heat exchanger (13) and the second suction opening, and a gas-liquid separator (16) is provided in the duct between the second heat exchanger (14) and the second suction opening.
11. A compressed air conditioning system according to claim 10, characterised in that a third heat exchanger (15) is provided in line between the first heat exchanger (13) and the second heat exchanger (14), the air in line between the gas-liquid separator (16) and the second suction opening being able to exchange heat with the air in line between the first heat exchanger (13) and the second heat exchanger (14) in the third heat exchanger (15).
12. Compressed air conditioning system according to claim 11, characterized in that the first mixing chamber (33) further has a condensate water inlet which communicates with a drain opening of the gas-liquid separator (16).
13. The compressed air conditioning system according to claim 1, wherein the blades of the heat exchange driving fan (5) are sleeved on the rotating shaft of the motor (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110263418.1A CN112944710A (en) | 2021-03-11 | 2021-03-11 | Compressed air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110263418.1A CN112944710A (en) | 2021-03-11 | 2021-03-11 | Compressed air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112944710A true CN112944710A (en) | 2021-06-11 |
Family
ID=76229209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110263418.1A Pending CN112944710A (en) | 2021-03-11 | 2021-03-11 | Compressed air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112944710A (en) |
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2021
- 2021-03-11 CN CN202110263418.1A patent/CN112944710A/en active Pending
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