CN116857735A - Air conditioning system comprising air medium compression expansion heating device - Google Patents
Air conditioning system comprising air medium compression expansion heating device Download PDFInfo
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- CN116857735A CN116857735A CN202310882143.9A CN202310882143A CN116857735A CN 116857735 A CN116857735 A CN 116857735A CN 202310882143 A CN202310882143 A CN 202310882143A CN 116857735 A CN116857735 A CN 116857735A
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- conditioning system
- heating device
- air conditioning
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 84
- 238000004378 air conditioning Methods 0.000 title claims abstract description 60
- 230000006835 compression Effects 0.000 title claims abstract description 51
- 238000007906 compression Methods 0.000 title claims abstract description 51
- 238000001816 cooling Methods 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 34
- 238000005057 refrigeration Methods 0.000 claims description 16
- 239000003507 refrigerant Substances 0.000 description 56
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
- F24D15/04—Other domestic- or space-heating systems using heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1039—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump
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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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
- F25B41/26—Disposition of valves, e.g. of on-off valves or flow control valves of fluid flow reversing valves
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
An air conditioning system comprising an air medium compression expansion heating device mainly comprises an air compressor, an air-refrigerating medium heat exchanger, an air expander, a motor and connecting pipelines between the air compressor and the air expander; the outlet of the air compressor is communicated with the inlet of the working medium air channel of the air-refrigerating working medium heat exchanger through a connecting pipeline, and the outlet of the working medium air channel of the air-refrigerating working medium heat exchanger is communicated with the inlet of the air expander through a pipeline. The air medium compression expansion heating device can be used as an air source heat pump unit, a central air conditioner unit or a water cooling unit outdoor unit, and utilizes the compression-expansion air medium to heat, so that frost and dew working points of the outdoor unit in winter are eliminated, the problem of frosting of the outdoor unit is thoroughly solved, and the efficiency of the air source heat pump unit, the central air conditioner unit or the water cooling unit outdoor unit and the like is improved.
Description
Technical Field
The invention belongs to the technical field of air conditioning heat, and particularly relates to an air conditioning system comprising an air medium compression expansion heating device.
Background
An air source heat pump, as its name implies, is a heat pump that uses air as a heat source. The energy efficiency of the heating device is far higher than that of the heating device by burning fossil fuel or directly using an electric heater by adopting an air source heat pump, and the heating device can face the problem of frosting of an external machine by adopting the air source heat pump in winter.
The existing methods for solving the problem of frosting of the external machine mainly comprise the following steps: 1) And the four-way valve is utilized for reversing, so that the Freon at high temperature and high pressure on the condensation side flows through the evaporator in a short time to melt the frost on the fins and the tubes. 2) In the fluorine pipeline, a pipe is independently led from a high-temperature high-pressure condenser and is dispersed in an evaporator, and frost is melted along with the frost by controlling the temperature and the time. 3) On the evaporator, a heat tracing band is spread. 4) An ultrasonic generator is added to prevent frost generated on the evaporator from remaining on the fins and the tubes. 5) The problem of overlarge compression ratio is solved through an overlapping mode. However, the above methods all increase power consumption and affect unit life. Therefore, it is necessary to find an energy-saving technical scheme for preventing the external machine from frosting.
Disclosure of Invention
In order to thoroughly solve the problem of frosting of an external machine represented by an air source heat pump system, the invention provides an air conditioning system comprising an air medium compression expansion heating device, which not only achieves the purposes of energy saving and consumption reduction, but also can prolong the service life of a unit compared with the prior art, and is specifically described as follows:
an air conditioning system comprising an air medium compression expansion heating device, the air conditioning system and the air medium compression expansion heating device; the air conditioning system mainly comprises a refrigeration compressor, an air-refrigeration working medium heat exchanger, a liquid reservoir, a second throttle valve, an indoor unit, a gas-liquid separator and connecting pipelines between the two; the refrigerating compressor, the indoor unit, the liquid storage device, the second throttle valve, the refrigerating medium pipeline of the air-refrigerating medium heat exchanger and the gas-liquid separator are connected through the connecting pipeline in the sequence; the air medium compression expansion heating device mainly comprises an air compressor, an air-refrigerating medium heat exchanger, an air expander, a motor and connecting pipelines between the air compressor and the air-refrigerating medium heat exchanger; the outlet of the air compressor is communicated with the inlet of the working medium air channel of the air-refrigerating working medium heat exchanger through a connecting pipeline, and the outlet of the working medium air channel of the air-refrigerating working medium heat exchanger is communicated with the inlet of the air expander through a pipeline; the air compressor is coaxially connected with the air expander, and the motor is electrically connected with the air compressor and the air expander.
Further, the motor is a variable frequency motor.
Further, the air compressor is one of a centrifugal compressor and an axial compressor, preferably an axial compressor is selected.
Further, the air expander is a centrifugal expander and an axial compressor, preferably an axial compressor is selected.
Further, the air conditioning system comprising the air medium compression expansion heating device is a single heating air conditioning system, and the air medium compression expansion heating device is used as an outdoor unit of the single heating air conditioning system to provide a heat source for the single heating air conditioning system.
Further, the single heating air conditioning system is a ground source heat pump system.
Further, the air conditioning system comprising the air medium compression expansion heating device is a cooling and heating air conditioning system, and the air medium compression expansion heating device is used as an outdoor unit of a heating mode of the cooling and heating air conditioning system to provide a heat source for the cooling and heating air conditioning system.
Further, the cooling and heating air conditioning system is a central air conditioning unit or a water cooling unit. .
The air medium compression expansion heating device can be used as an outdoor unit in a heating mode of an air source heat pump unit, a central air conditioner unit or a water cooling unit, and utilizes the compression-expansion air medium to heat, so that frost and dew working condition points of the outdoor unit in winter are eliminated, the problem of frosting of the outdoor unit is thoroughly solved, the efficiency of the air source heat pump unit is improved, and the utilization rate of the central air conditioner unit or the water cooling unit outdoor unit and the like capable of heating in winter is increased.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structural principle of the air medium compression expansion heating device.
FIG. 2 is a schematic diagram of the air medium compression expansion heating device applied to a single heating air conditioning system.
Fig. 3 is a schematic structural diagram of the air medium compression expansion heating device applied to the cold and warm air conditioning system.
Fig. 4 is a schematic structural flow diagram of the air medium compression expansion heating device of fig. 3 in refrigeration operation in an application of the air conditioning system.
FIG. 5 is a schematic diagram of the air medium compression expansion heating device of FIG. 3 in the heating process of the air conditioning system.
In the figure: 1. a refrigeration compressor; 2. a gas-liquid separator; 3. a four-way valve; 4. an indoor unit; 5. a first throttle valve; 6. a first one-way valve; 7. a reservoir; 8. a second throttle valve; 9. a second one-way valve; 10. a first electromagnetic valve; 11. an air-refrigerant heat exchanger; 12. a second electromagnetic valve; 13. a third electromagnetic valve; 14. an outdoor heat exchanger; 15. a fourth electromagnetic valve; 16. an air compressor; 17. an air expander; 18. and a motor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below.
It will be apparent that the described embodiments are only some, but not all, embodiments of the invention.
All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims. In order that the embodiments may be more readily understood, various embodiments or methods of implementing the invention are provided below to illustrate the relevant devices, modules, functions of the invention.
Detailed description of the preferred embodiments
As shown in fig. 1, the air conditioning system of the air medium compression expansion heating device comprises an air conditioning system and an air medium compression expansion heating device, wherein the air medium compression expansion heating device mainly comprises: an air compressor 16, an air-refrigerant heat exchanger 11, an air expander 17, a motor 18, and connecting lines therebetween.
The outlet of the air compressor 16 is communicated with the air inlet of the air-refrigerant heat exchanger 11 through a connecting pipeline, and the air outlet of the air-refrigerant heat exchanger 11 is communicated with the inlet of the air expander 17 through a pipeline.
The air compressor 16 is coaxially connected with the air expander 17, and the motor 18 is electrically connected with the air compressor 16 and the air expander 17.
The air conditioning system of the compression expansion heating device has the working principle that: the motor 18 drives the impeller of the air compressor 16 to rotate, the air compressor 16 sucks working medium air, and compresses the working medium air to raise the temperature and the pressure of the working medium air; the air with the temperature and the pressure increased enters the air-refrigerant heat exchanger 11 to exchange heat with the refrigerant, and the refrigerant air after heat exchange is discharged from the air-refrigerant heat exchanger 11 to drive the impeller of the air expander 17 to rotate, and the impeller of the air compressor 16 on the same shaft with the air expander 17 is driven to rotate due to the rotation of the impeller of the air expander 17; meanwhile, the rotation of the impeller of the air compressor 16 compresses working medium air passing through the impeller of the air compressor 16, and the impeller of the air compressor 16 not only compresses gas, but also utilizes the power emitted by the expander to realize partial energy recovery. In the process, the pressure of the working medium air from the air expander 17 has been reduced to very close to atmospheric pressure, and the working medium is discharged directly to the atmosphere.
The motor 18 is a variable frequency motor; the air compressor 16 is one of a centrifugal compressor and an axial compressor, preferably an axial compressor is selected; the air expander 17 is a centrifugal expander and an axial compressor, preferably an axial compressor is selected.
Detailed description of the preferred embodiments
The air medium compression expansion heating device disclosed by the invention is applied to a single heating air conditioning system as shown in figure 2. The single heating air conditioning system mainly comprises: the refrigerating compressor 1, the air-refrigerating medium heat exchanger 11, the liquid reservoir 7, the second throttle valve 8, the indoor unit 4, the gas-liquid separator 2 and connecting pipelines between the two. The air medium compression expansion heating device is the same as the first embodiment, and mainly comprises: an air compressor 16, an air-refrigerant heat exchanger 11, an air expander 17, a motor 18, and connecting lines therebetween.
The refrigerating compressor 1, the indoor unit 4, the liquid reservoir 7, the second throttle valve 8, the refrigerating medium pipeline of the air-refrigerating medium heat exchanger 11 and the gas-liquid separator 2 are connected through connecting pipelines in the above order.
The outlet of the air compressor 16 is communicated with the air inlet of the air-refrigerant heat exchanger 11 through a connecting pipeline, and the air outlet of the air-refrigerant heat exchanger 11 is communicated with the inlet of the air expander 17 through a pipeline. The air compressor 16 is coaxially connected with the air expander 17, and the motor 18 is electrically connected with the air compressor 16 and the air expander 17.
The working principle and working flow of the air medium compression expansion heating device applied to a single heating air conditioning system are as follows:
the motor 18 drives the impeller of the air compressor 16 to rotate, the air compressor 16 sucks working medium air, and compresses the working medium air to raise the temperature and the pressure of the working medium air; the air with the temperature and the pressure increased enters the air-refrigerant heat exchanger 11 to exchange heat with the refrigerant, and the refrigerant air after heat exchange is discharged from the air-refrigerant heat exchanger 11 to drive the impeller of the air expander 17 to rotate, and the impeller of the air compressor 16 on the same shaft with the air expander 17 is driven to rotate due to the rotation of the impeller of the air expander 17, so that the circulation work is performed; the refrigerant in the air-refrigerant heat exchanger 11 absorbs heat of the air heated and boosted in the air-refrigerant heat exchanger 11, and becomes a gaseous refrigerant, the gaseous refrigerant enters the gas-liquid separator 2 under the drive of the refrigerant compressor 1, the gaseous refrigerant in the gas-liquid separator 2 enters the refrigerant compressor 1, the gaseous refrigerant is compressed by the refrigerant compressor 1 and becomes a high-temperature high-pressure refrigerant, the high-temperature high-pressure refrigerant then enters the indoor unit 4 to exchange heat with indoor cold air, and then enters the liquid reservoir 7, and the low-temperature high-pressure refrigerant in the liquid reservoir 7 enters the refrigerant channel in the air-refrigerant heat exchanger 11 again through the second throttle valve 8 for the next cycle.
The single heating air conditioning system is one of an air source heat pump system or a common heating air conditioning system.
The indoor unit 4 can be made into a hot air fan of an air source heat pump for providing hot air for heating; the water heater of the air source heat pump can also be made to provide hot water heating.
Detailed description of the preferred embodiments
The air medium compression expansion heating device shown in figure 3 is applied to a cold and warm air conditioning system. The cooling and heating air conditioning system mainly comprises: the gas-liquid separator 2, the refrigeration compressor 1, the outdoor heat exchanger 14, the second throttle valve 8, the second check valve 9, the accumulator 7, the first throttle valve 5, and the first check valve 6. The port A of the four-way valve 3 is communicated with one end of the indoor unit 4 through a pipeline; the port B of the four-way valve 3 is communicated with the outlet of the refrigeration compressor 1; the inlet of the refrigeration compressor 1 is communicated with the outlet of the gas-liquid separator 2; the inlet of the gas-liquid separator 2 is communicated with a port D of the four-way valve 3; the port C of the four-way valve 3 is communicated with one end of the outdoor heat exchanger 14; a second one-way valve 9, a liquid reservoir 7 and a first throttle valve 5 branch are sequentially arranged between the outdoor heat exchanger 14 and the indoor unit 4; meanwhile, a second throttle valve 8, a liquid reservoir 7 and a branch of the first one-way valve 6 are sequentially arranged between the outdoor heat exchanger 14 and the indoor unit 4.
A fourth electromagnetic valve 15 and a third electromagnetic valve 13 are also installed at two ports of the outdoor heat exchanger 14.
The air medium compression expansion heating device is the same as the first embodiment, and mainly comprises: an air compressor 16, an air-refrigerant heat exchanger 11, an air expander 17, a first solenoid valve 10, a second solenoid valve 12, a motor 18, and connecting lines therebetween. The air compressor 16, the medium air channel of the air-refrigerating medium heat exchanger 11 and the air expander 17 are communicated in the above order to form an air conditioning system of the air medium compression expansion heating device; the air compressor 16 is coaxially connected with the air expander 17, and the motor 18 is electrically connected with the air compressor 16 and the air expander 17.
The two ends of the refrigerating medium channel of the air-refrigerating medium heat exchanger 11 are respectively provided with a first electromagnetic valve 10 and a second electromagnetic valve 12.
The branch circuit formed by connecting the first electromagnetic valve 10, the channel of the refrigerating medium of the air-refrigerating medium heat exchanger 11 and the second electromagnetic valve 12 is connected in parallel with the branch circuit formed by connecting the third electromagnetic valve 13, the outdoor heat exchanger 14 and the fourth electromagnetic valve 15. Therefore, when the air medium compression expansion heating device is applied to a cold and warm air conditioning system, the air medium compression expansion heating device comprises two sets of external machines, wherein the outdoor heat exchanger 14 works for refrigeration, and the air medium compression expansion heating device works for heating, so that the problem that the traditional central air conditioner and water cooling unit cannot be used for heating in winter due to frosting and the like is solved.
The working principle and working flow of the air medium compression expansion heating device applied to the cold and warm air conditioning system are as follows:
when refrigeration is required, as shown in fig. 4: the first check valve 6, the second throttle valve 8, the first electromagnetic valve 10 and the second electromagnetic valve 12 are in a closed state, and the first throttle valve 5, the second check valve 9, the third electromagnetic valve 13 and the fourth electromagnetic valve 15 are in an open working state; the refrigerant in the indoor unit 4 absorbs indoor heat, evaporates into a gaseous refrigerant or a refrigerant in a night mixed state, enters the gas-liquid separator 2 through the four-way valve 3 to perform gas-liquid separation, the gaseous refrigerant is compressed into a high-temperature high-pressure refrigerant by the refrigeration compressor 1 under the action of the refrigeration compressor 1, the high-temperature high-pressure refrigerant enters the outdoor heat exchanger 14 through the fourth electromagnetic valve 15, is cooled into liquid refrigerant in the outdoor heat exchanger 14 to work, then enters the liquid storage tank 7 through the third electromagnetic valve 13 and the second one-way valve 9, enters the first throttle valve 5 through the outlet of the liquid storage tank 7, and enters the indoor unit 4 again to perform circulation.
When heating is required, as shown in fig. 5: the first throttle valve 5, the second check valve 9, the third electromagnetic valve 13 and the fourth electromagnetic valve 15 are in a closed state, and the first check valve 6, the second throttle valve 8, the first electromagnetic valve 10 and the second electromagnetic valve 12 are in an open working state; the motor 18 drives the impeller of the air compressor 16 to rotate, the air compressor 16 sucks working medium air, and compresses the working medium air to raise the temperature and the pressure of the working medium air; the air with the temperature and the pressure increased enters the air-refrigerant heat exchanger 11 to exchange heat with the refrigerant, and the refrigerant air after heat exchange is discharged from the air-refrigerant heat exchanger 11 to drive the impeller of the air expander 17 to rotate, and the impeller of the air compressor 16 on the same shaft with the air expander 17 is driven to rotate due to the rotation of the impeller of the air expander 17, so that the circulation work is performed; simultaneously, the refrigerant in the air-refrigerant heat exchanger 11 absorbs the heat of the air heated and boosted in the air-refrigerant heat exchanger 11 and becomes a gaseous refrigerant, the gaseous refrigerant enters the gas-liquid separator 2 through the four-way valve 3 under the drive of the refrigeration compressor 1, the gaseous refrigerant in the gas-liquid separator 2 enters the refrigeration compressor 1, the gaseous refrigerant becomes a high-temperature high-pressure gaseous refrigerant after the compression of the refrigeration compressor 1, then the high-temperature high-pressure gaseous refrigerant enters the indoor unit 4 through the four-way valve 3 to exchange heat with indoor cold air and becomes a low-temperature high-pressure liquid refrigerant, the low-temperature high-pressure liquid refrigerant enters the liquid accumulator 7 through the first one-way valve 6, and the low-temperature high-pressure liquid refrigerant in the liquid accumulator 7 enters the refrigerant channel in the air-refrigerant heat exchanger 11 again through the second throttle valve 8 and the first electromagnetic valve 10 for the next cycle.
When the air medium compression expansion heating device is applied to a cold and warm air conditioning system, the cold and warm air conditioning system is a central air conditioner or a water cooling unit, and the air medium compression expansion heating device is used as an outdoor unit of the central air conditioner or the water cooling unit to provide a heat source for an indoor unit 4 of the central air conditioner or the water cooling unit.
Claims (8)
1. An air conditioning system comprising an air medium compression expansion heating device, the air conditioning system and the air medium compression expansion heating device; the air conditioning system is characterized by mainly comprising a refrigeration compressor, an air-refrigeration working medium heat exchanger, a liquid accumulator, a second throttle valve, an indoor unit, a gas-liquid separator and connecting pipelines between the two; the refrigerating compressor, the indoor unit, the liquid storage device, the second throttle valve, the refrigerating medium pipeline of the air-refrigerating medium heat exchanger and the gas-liquid separator are connected through the connecting pipeline in the sequence; the air medium compression expansion heating device mainly comprises an air compressor, an air-refrigerating medium heat exchanger, an air expander, a motor and connecting pipelines between the air compressor and the air-refrigerating medium heat exchanger; the outlet of the air compressor is communicated with the inlet of the working medium air channel of the air-refrigerating working medium heat exchanger through a connecting pipeline, and the outlet of the working medium air channel of the air-refrigerating working medium heat exchanger is communicated with the inlet of the air expander through a pipeline; the air compressor is coaxially connected with the air expander, and the motor is electrically connected with the air compressor and the air expander.
2. An air conditioning system including an air medium compression expansion heating device as claimed in claim 1, wherein said motor is a variable frequency motor.
3. An air conditioning system comprising an air medium compression expansion heating device according to claim 1, wherein the air compressor is one of a centrifugal compressor and an axial compressor, preferably an axial compressor is selected.
4. An air conditioning system comprising an air medium compression expansion heating device according to claim 1, characterized in that the air expander is a centrifugal expander and an axial compressor, preferably an axial compressor is selected.
5. An air conditioning system including an air medium compression expansion heating device as set forth in claim 1, wherein said air conditioning system including an air medium compression expansion heating device is a single heating air conditioning system, and said air medium compression expansion heating device is used as an outdoor unit of the single heating air conditioning system to provide a heat source for the single heating air conditioning system.
6. An air conditioning system including an air medium compression expansion heating device as set forth in claim 5, wherein said single heating air conditioning system is a ground source heat pump system.
7. An air conditioning system including an air medium compression expansion heating device as set forth in claim 1, wherein said air conditioning system including an air medium compression expansion heating device is a cooling and heating air conditioning system, said air medium compression expansion heating device being an outdoor unit of a heating mode of the cooling and heating air conditioning system for providing a heat source for the cooling and heating air conditioning system.
8. An air conditioning system including an air medium compression expansion heating device as claimed in claim 7, wherein said air conditioning system is a central air conditioning unit or a water cooling unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310882143.9A CN116857735A (en) | 2023-07-18 | 2023-07-18 | Air conditioning system comprising air medium compression expansion heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310882143.9A CN116857735A (en) | 2023-07-18 | 2023-07-18 | Air conditioning system comprising air medium compression expansion heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116857735A true CN116857735A (en) | 2023-10-10 |
Family
ID=88233943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310882143.9A Pending CN116857735A (en) | 2023-07-18 | 2023-07-18 | Air conditioning system comprising air medium compression expansion heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116857735A (en) |
-
2023
- 2023-07-18 CN CN202310882143.9A patent/CN116857735A/en active Pending
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