CN109539437B - Open temperature and humidity independent control solar energy direct drive air conditioning system and its working method - Google Patents
Open temperature and humidity independent control solar energy direct drive air conditioning system and its working method Download PDFInfo
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- CN109539437B CN109539437B CN201811326535.2A CN201811326535A CN109539437B CN 109539437 B CN109539437 B CN 109539437B CN 201811326535 A CN201811326535 A CN 201811326535A CN 109539437 B CN109539437 B CN 109539437B
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 136
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 claims abstract 2
- 239000007788 liquid Substances 0.000 claims description 38
- 239000007921 spray Substances 0.000 abstract description 15
- 230000008569 process Effects 0.000 description 30
- 238000001704 evaporation Methods 0.000 description 24
- 230000008020 evaporation Effects 0.000 description 22
- 238000009833 condensation Methods 0.000 description 17
- 230000005494 condensation Effects 0.000 description 17
- 238000007791 dehumidification Methods 0.000 description 14
- 230000008929 regeneration Effects 0.000 description 11
- 238000011069 regeneration method Methods 0.000 description 11
- 238000001179 sorption measurement Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 238000011946 reduction process Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
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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
- F24F5/0046—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 using natural energy, e.g. solar energy, energy from the ground
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
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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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F2003/1458—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification using regenerators
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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
- F24F5/0046—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 using natural energy, e.g. solar energy, energy from the ground
- F24F2005/0064—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 using natural energy, e.g. solar energy, energy from the ground using solar energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/272—Solar heating or cooling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
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- Water Supply & Treatment (AREA)
- Central Air Conditioning (AREA)
- Drying Of Gases (AREA)
Abstract
本发明提供了一种开式的温湿度独立控制太阳能直驱空调系统，包括露点式蒸发换热器(2)和间接蒸发冷却器(7)这两者中的其中一个、转轮(1)、太阳能光伏太阳能光伏光热一体化组件(3)、冷凝换热器(4)、第一水泵(5)、第一风机(8)以及第二风机(9)；所述转轮(1)的第一出风口连接至露点式蒸发换热器(2)和间接蒸发冷却器(7)这两者中的其中一个的第一流道进口；所述转轮(1)的第二出风口连接至冷凝换热器(4)的第一流道口进口。本发明还提供了一种空调系统的工作方法。本发明提供的空调系统完全依靠太阳能实现夏季建筑的空气调节，且送风降温所需的喷淋水由系统自给自足，节约电力和水资源的消耗，缓解电网压力。
The invention provides an open-type temperature and humidity independent control solar energy direct-drive air conditioning system, comprising one of a dew point evaporative heat exchanger (2) and an indirect evaporative cooler (7), a runner (1) , a solar photovoltaic solar photovoltaic photothermal integrated assembly (3), a condensing heat exchanger (4), a first water pump (5), a first fan (8) and a second fan (9); the runner (1) The first air outlet is connected to the first flow channel inlet of one of the dew point evaporative heat exchanger (2) and the indirect evaporative cooler (7); the second air outlet of the runner (1) is connected to to the inlet of the first flow passage of the condensing heat exchanger (4). The invention also provides a working method of the air conditioning system. The air conditioning system provided by the invention completely relies on solar energy to realize the air conditioning of buildings in summer, and the spray water required for air supply and cooling is self-sufficient in the system, which saves the consumption of electricity and water resources and relieves the pressure on the power grid.
Description
Technical Field
The invention belongs to the field of air conditioning systems, and particularly relates to an open type solar direct-drive air conditioning system with independent temperature and humidity control and a working method thereof.
Background
With the progress of society and the improvement of living standard, the requirement of residents on the thermal comfort of buildings is higher and higher. The air conditioner is still the most common summer refrigeration mode, but the power consumed by the operation of the air conditioner increases the burden of a power grid, and the dehumidification function of the air conditioner needs to additionally consume more energy. Three novel refrigeration modes using solar energy as a main energy source are proposed at present, including a solar air conditioner, a solar-driven rotary dehumidification system and a solar-driven adsorption refrigerator. The solar air conditioner adopts an indirect utilization mode for solar energy, namely the solar energy is converted into electric energy through the photovoltaic panel for utilization, the utilization efficiency is low, and the price of the photovoltaic panel is expensive; the solar-driven rotary wheel dehumidification system can realize independent temperature and humidity control, but the outlet air temperature is high, the temperature is reduced by a cooling heat exchanger, and a large amount of spray water is consumed; the solar driven adsorption refrigerator utilizes the working medium in the evaporator to evaporate and absorb heat in the adsorption process to realize building cooling, but has low indirect heat exchange efficiency, no dehumidification function and complex system structure. The electric-driven air conditioner and the three current solar-driven air conditioning technologies cannot give consideration to energy conservation, emission reduction and effective temperature and humidity regulation. Therefore, an air conditioning system which can realize effective regulation of temperature and humidity and also can save energy and reduce emission is urgently needed.
Disclosure of Invention
In view of the defects in the prior art, the invention aims to provide an air conditioning system and a working method thereof.
The open solar direct-drive air conditioning system with independent temperature and humidity control comprises a rotating wheel, a solar photovoltaic and photo-thermal integrated assembly, a condensing heat exchanger, a first fan, a second fan, a first water pump and a dew-point evaporation heat exchanger or an indirect evaporation cooler, wherein the rotating wheel is connected with the solar photovoltaic and photo-thermal integrated assembly;
an air outlet of the first fan is respectively connected to a first air inlet of the rotating wheel and a second flow channel inlet of the condensing heat exchanger;
the first air outlet of the rotating wheel is connected to the first flow passage opening of one of the dew-point evaporative heat exchanger and the indirect evaporative cooler;
the second air outlet of the rotating wheel is connected to the inlet of the first flow channel of the condensation heat exchanger;
the outlets of the first flow channels of the condensing heat exchangers are respectively connected to the water inlet of a first water pump;
the water outlet of the first water pump is connected to the second flow passage port of one of the dew-point evaporative heat exchanger and the indirect evaporative cooler;
an outlet of a first flow passage of the condensation heat exchanger is connected to an air inlet of a second fan;
an air outlet of the second fan is connected to an air inlet of the solar photovoltaic and photo-thermal integrated assembly;
and an air outlet of the solar photovoltaic and photo-thermal integrated assembly is connected to a second air inlet of the rotating wheel.
Preferably, the electric power generated by the solar photovoltaic photo-thermal integrated assembly is respectively supplied to the first fan, the second fan, the first water pump and the driving motor of the rotating wheel.
Preferably, an air path, a liquid water path are included.
Preferably, the air path comprises a plurality of paths;
the first path is: the air outlet of the solar photovoltaic and photo-thermal integrated assembly is connected to the second air inlet of the rotating wheel;
the second air outlet of the rotating wheel is connected to the inlet of the first flow channel of the condensation heat exchanger;
an outlet of a first flow passage of the condensation heat exchanger is connected to an air inlet of a second fan;
an air outlet of the second fan is connected to an air inlet of the solar photovoltaic and photo-thermal integrated assembly;
the air conditioning system also comprises a first fan;
the second path is: an air inlet of the first fan is connected to a first air inlet of the rotating wheel;
the first air outlet of the rotating wheel is connected to the first flow channel inlet of one of the dew-point evaporative heat exchanger and the indirect evaporative cooler;
the outlet of the first flow passage of one of the dew-point evaporative heat exchanger and the indirect evaporative cooler is communicated to the indoor space;
the third path is: an air outlet of the first fan is connected to an inlet of a second flow channel of the condensing heat exchanger;
and the outlet of the second flow passage of the condensation heat exchanger forms a second air outlet.
Preferably, the liquid water path is: the outlet of the first flow passage of the condensation heat exchanger is connected to the water inlet of a first water pump;
the water outlet of the first water pump is connected to the second flow passage port of one of the dew-point evaporative heat exchanger and the indirect evaporative cooler.
Preferably, in the first air path, the air is heated by the solar photovoltaic and photo-thermal integrated assembly and then enters the second air inlet of the rotating wheel;
the air flows from the second air outlet of the rotating wheel to the first flow channel inlet of the condensing heat exchanger;
and air flows into the solar photovoltaic photo-thermal integrated assembly from the outlet of the first flow channel of the condensation heat exchanger through the second fan.
Preferably, in the second air path, the fresh air flows to the second air inlet of the rotating wheel through the first fan;
a first flow channel inlet flowing from the first air outlet of the runner to one of a dew point evaporative heat exchanger and an indirect evaporative cooler;
flows into the room from the first runner outlet of one of the dew-point evaporative heat exchanger and the indirect evaporative cooler.
Preferably, in the third air path, fresh air flows from the air outlet of the first fan to the second flow channel inlet of the condensing heat exchanger;
and the air is discharged from a second air outlet of the condensing heat exchanger.
Preferably, the liquid water formed in the first flow passage of the condensing heat exchanger flows from the outlet of the first flow passage of the condensing heat exchanger to the inlet of the first water pump;
and the water flows from the water outlet of the first water to a second flow passage of a dew-point evaporative heat exchanger or an indirect evaporative cooler.
The invention also provides a working method of the open type temperature and humidity independent control solar direct-drive air conditioning system, which comprises the step of cooling air by using the air conditioning system.
Compared with the prior art, the invention has the following beneficial effects:
1. the air conditioning system provided by the invention completely depends on solar energy to realize air conditioning of buildings in summer, so that the power consumption is saved, and the pressure of a power grid is relieved.
2. The air conditioning system provided by the invention has the function of taking water, and the obtained liquid water can be used as a spray water source of an evaporative cooler for adjusting the air supply temperature, is completely self-sufficient, and reduces the consumption of water resources.
3. The invention can realize the independent control of temperature and humidity, and greatly improve the thermal comfort of refrigeration.
4. According to the air conditioning system provided by the invention, the outlet air of the runner in the regeneration process is high in temperature and humidity, and the contained water vapor is condensed by the condensing heat exchanger to obtain liquid water. Part of the obtained liquid water is used as a spraying water source of a dew-point heat exchanger or an indirect evaporative cooler for adjusting the air supply temperature, and the rest part of the obtained liquid water can be used as domestic water.
5. The air at the outlet of the air conditioning system runner dehumidification process is cooled by the dew point type evaporative heat exchanger or the indirect evaporative cooler, and then the supplied air with proper temperature and humidity is obtained to improve the temperature and humidity of buildings in summer.
6. The electric power generated by the solar photovoltaic photo-thermal integrated assembly of the air conditioning system provided by the invention is supplied to the fan or the water pump and the driving motor of the rotating wheel, and the generated hot air is used for driving the drying agent in the rotating wheel to regenerate.
7. The air conditioning system has the advantages of simple principle, convenient operation, safety, reliability, and lower processing cost and operation cost.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural diagram of an embodiment of an air conditioning system provided in the present invention.
Figure 2 is a psychrometric chart of an embodiment of the air conditioning system provided by the present invention.
Fig. 3 is a schematic structural diagram of another embodiment of an air conditioning system provided by the present invention.
Figure 4 is a psychrometric chart of another embodiment of the air conditioning system provided by the present invention.
The meanings of the reference symbols in the drawings are shown in the following table:
| rotating wheel 1 | Liquid water 31 at outlet of condensing heat exchanger |
| Fresh air 11 | |
| Air inlet | |
| 12 of dew point type evaporative heat exchanger | |
| Air return opening 13 of dew-point type evaporative heat exchanger | |
| |
|
| Air supply outlet 15 | |
| |
Indirect |
| Dew point type |
|
| Air |
Air return 72 of indirect evaporative cooler |
| Rotary |
Indirect evaporative |
| Condenser heat exchanger air outlet 23 | |
| Solar photovoltaic and photo-thermal integrated assembly 3 | |
| Fresh |
Dew point heat exchanger air |
| Dew point heat exchanger return air state point 131 | Air supply port status point 151 |
| Second exhaust |
First exhaust |
| Indirect evaporative |
Return air inlet 722 of indirect evaporative condenser |
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
As shown in fig. 1 and 3, the invention provides an open type temperature and humidity independent control solar direct-drive air conditioning system, which comprises a rotating wheel 1, a solar photovoltaic and photo-thermal integrated assembly 3, a condensing heat exchanger 4, a first fan 8, a second fan 9, a first water pump 5, and a dew-point evaporation heat exchanger 2 or an indirect evaporation cooler 7; an air outlet of the first fan 8 is respectively connected to a first air inlet of the rotating wheel 1 and a second flow channel inlet of the condensing heat exchanger 4; the first air outlet of the runner 1 is connected to the first flow channel inlet of one of the dew-point evaporative heat exchanger 2 and the indirect evaporative cooler 7; the second air outlet of the runner 1 is connected to the inlet of the first flow channel of the condensing heat exchanger 4; the outlet of the first flow passage of the condensing heat exchanger 4 is connected to the water inlet of a first water pump 5; the water outlet of the first water pump 5 is connected to the second flow passage port of one of the dew-point evaporative heat exchanger 2 and the indirect evaporative cooler 7; the outlet of the second flow passage of the condensing heat exchanger 4 is connected to the air inlet of a second fan 9; an air outlet of the second fan 9 is connected to an air inlet of the solar photovoltaic and photo-thermal integrated assembly 3; and an air outlet of the solar photovoltaic and photo-thermal integrated assembly 3 is connected to a second air inlet of the rotating wheel 1.
The invention provides an open solar direct-drive air conditioning system with independent temperature and humidity control function.
The air path comprises a plurality of paths; the first path is: an air outlet of the solar photovoltaic and photo-thermal integrated component 3 is connected to a second air inlet of the rotating wheel 1; the second air outlet of the runner 1 is connected to the inlet of the first flow channel of the condensing heat exchanger 4; the outlet of the first flow passage of the condensing heat exchanger 4 is connected to the air inlet of a second fan 9; and an air outlet of the second fan 9 is connected to an air inlet of the solar photovoltaic and photo-thermal integrated assembly 3.
The air conditioning system also comprises a first fan 8; the second path is: an air inlet of the first fan 8 is connected to a first air inlet of the rotating wheel 1; the first air outlet of the runner 1 is connected to the first flow channel inlet of one of the dew-point evaporative heat exchanger 2 and the indirect evaporative cooler 7; the outlet of the first flow passage of one of the dew-point type evaporative heat exchanger 2 and the indirect evaporative cooler 7 is communicated to the indoor; the third path is: an air outlet of the first fan 8 is connected to an inlet of a second flow channel of the condensing heat exchanger 4; the outlet of the second flow passage of the condensing heat exchanger 4 forms a second air outlet 16.
The liquid water path is: the outlet of the second flow passage of the condensing heat exchanger 4 is connected to the water inlet of a first water pump 5; and the water outlet of the first water pump 5 is connected to the second flow passage port of the dew-point evaporation heat exchanger 2.
In the first air path, air is heated by the solar photovoltaic and photo-thermal integrated assembly 3 and then enters the second air inlet of the rotating wheel 1; the obtained high-temperature high-humidity air flows to the inlet of the first flow channel of the condensing heat exchanger 4 from the second air outlet of the runner 1, is cooled and forms liquid water; and air flows into the solar photovoltaic photo-thermal integrated assembly 3 from the first runner outlet of the condensation heat exchanger 4 through the second fan 9.
In the second air path, the fresh air 11 flows to the second air inlet of the rotating wheel 1 through the first fan 8 and is dehumidified by the rotating wheel 1; a first flow channel inlet which flows from the first air outlet of the runner 1 to one of the dew-point evaporative heat exchanger 2 and the indirect evaporative cooler 7; flows into the room from the first flow passage outlet of one of the dew-point evaporative heat exchanger 2 and the indirect evaporative cooler 7.
In the third air path, fresh air 11 flows from the air outlet of the first fan 8 to the second flow channel inlet of the condensing heat exchanger 4; and is discharged from a second air outlet 16 of the condensing heat exchanger 4.
The liquid water formed from the first flow passage of the condensing heat exchanger 4 flows from the first flow passage outlet of the condensing heat exchanger 4 to the water inlet of the first water pump 5; flows from the water outlet of the first water pump 5 to the dew-point type evaporation heat exchanger 2.
The invention also provides a working method of the open type temperature and humidity independent control solar direct-drive air conditioning system, which comprises the step of cooling air by the air conditioning system.
As shown in fig. 1 and 3, the present invention provides two preferred embodiments. As shown in fig. 1, a preferred example is: the invention provides an air conditioning system which comprises a dew point type evaporation heat exchanger 2, a rotating wheel 1, a solar photovoltaic photo-thermal integrated assembly 3, a condensation heat exchanger 4, a first fan 8, a second fan 9 and a first water pump 5; a first air outlet of the rotating wheel 1 is connected to a first flow channel inlet of the dew-point type evaporative heat exchanger 2, namely an air inlet 12 of the dew-point type evaporative heat exchanger; the second air outlet of the runner 1, namely the runner air outlet 22, is connected to the first flow channel inlet of the condensing heat exchanger 4; the outlet of the first flow passage of the condensing heat exchanger 4 is connected to the water inlet of a first water pump 5; the water outlet of the first water pump 5 is connected to the second flow passage port of the dew-point type evaporation heat exchanger 2; a first runner outlet of the condensing heat exchanger 4, namely a condenser heat exchanger air outlet 23, is connected to an air inlet of the second fan 9; an air outlet of the second fan 9 is connected to an air inlet of the solar photovoltaic and photo-thermal integrated assembly 3; and an air outlet of the solar photovoltaic and photo-thermal integrated assembly 3 is connected to a second air inlet of the rotating wheel 1.
In the air conditioning system provided by the present invention, the second path is: an air inlet of the second fan 8 is connected to a second air inlet of the rotating wheel 1; a first air outlet of the rotating wheel 1 is connected to a first flow channel opening of the dew-point evaporation heat exchanger 2; and a second flow opening, namely an air supply opening 15 of the dew-point evaporation heat exchanger 2 is communicated to the indoor.
The liquid water path is: the second flow passage of the condensing heat exchanger 4 is connected to the air inlet of the first fan 5; and an air outlet of the first fan 5 is connected to the dew point type evaporation heat exchanger 2.
In the first path, air is heated by the solar photovoltaic and photo-thermal integrated assembly 3 and then enters the second air inlet of the rotating wheel 1; flowing from the second air outlet of the runner 1 to the first flow opening of the condensing heat exchanger 4 to form liquid water, which is referred to as condensing heat exchanger outlet liquid water 31; and air flows into the solar photovoltaic photo-thermal integrated assembly 3 from the third flow passage of the condensation heat exchanger 4 through a third sealing machine 9.
In the second path, the fresh air 11 flows to the second air inlet of the rotating wheel 1 through the first fan 5 for dehumidification; a first outlet of the rotating wheel 1 flows to a first flow channel opening of a dew-point evaporation heat exchanger 2; flows into the room from a second flow port, namely a wind feeding port 15, of the dew-point type evaporative heat exchanger 2.
As shown in fig. 3, the present invention provides another preferred example: the air conditioning system comprises an indirect evaporative cooler 7, a rotating wheel 1, a solar photovoltaic and photo-thermal integrated assembly 3, a condensation heat exchanger 4, a first fan 5 and a third fan 9; the first air outlet of the runner 1 is connected to the first flow opening of the indirect evaporative cooler 7, namely an air inlet 71 of the indirect evaporative condenser; the second air outlet of the runner 1, namely the runner air outlet 22, is connected to the first flow channel inlet of the condensing heat exchanger 4; the outlet of the first flow passage of the condensing heat exchanger 4 is connected to the water inlet of a first water pump 5; the water outlet of the first water pump 5 is connected to an indirect evaporative cooler 7; a first runner outlet of the condensing heat exchanger 4, namely a condenser heat exchanger air outlet 23, is connected to an air inlet of the second fan 9; an air outlet of the second fan 9 is connected to an air inlet of the solar photovoltaic and photo-thermal integrated assembly 3; and an air outlet of the solar photovoltaic and photo-thermal integrated assembly 3 is connected to a second air inlet of the rotating wheel 1.
In the air conditioning system provided by the present invention, the second path is: an air inlet of the second fan 8 is connected to a second air inlet of the rotating wheel 1; the first air outlet of the runner 1 is connected to the first flow opening of the indirect evaporative cooler 7; a second flow port, i.e., an air supply port 15, of the indirect evaporative cooler 7 is communicated to the indoor.
The liquid water path is: the second flow passage of the condensing heat exchanger 4 is connected to the air inlet of the first fan 5; and the air outlet of the first fan 5 is connected to an indirect evaporative cooler 7.
In the first path, air is heated by the solar photovoltaic and photo-thermal integrated assembly 3 and then enters the second air inlet of the rotating wheel 1; flows from the second air outlet of the runner 1 to the first flow opening of the condensing heat exchanger 4 to form liquid water, which is referred to as indirect evaporative cooler spray water 73; and air flows into the solar photovoltaic photo-thermal integrated assembly 3 from the third flow passage of the condensation heat exchanger 4 through a third sealing machine 9.
In the second path, the fresh air 11 flows to the second air inlet of the rotating wheel 1 through the second fan 8 for dehumidification; a first flow channel opening which flows from the first air outlet of the runner 1 to the indirect evaporative cooler 7; flows into the room from the second flow port, i.e., the air supply port 15, of the indirect evaporative cooler 7.
It should be noted that, in the two preferable examples of the invention, the solar photovoltaic and photo-thermal integrated component 3 can be replaced by an air heat collector according to requirements, and if the solar photovoltaic and photo-thermal integrated component is replaced by an air heat collector, the air outlet of the solar photovoltaic and photo-thermal integrated component 3 is connected with the air outlet 21 of the air heat collector of the rotating wheel 1.
The following further describes the operation method of the air conditioning system provided by the present invention:
as shown in fig. 1 and 2, for an embodiment provided by the present invention, an open type temperature and humidity independent control solar direct-drive air conditioning system using a dew-point evaporation heat exchanger 2 preferably includes a runner regeneration process, a condensation water intake process, a runner dehumidification process, a condensate water utilization process, and an air supply cooling process:
(1) runner regeneration process, i.e. part of the first air path: an air outlet of the solar photovoltaic and photo-thermal integrated component 3 is connected with an air outlet 21 of an air collector of the rotating wheel 1, and an air outlet 22 of the rotating wheel 1 is connected to an inlet of a first flow channel of the condensing heat exchanger 4; a condenser heat exchanger air outlet 23 of the condensing heat exchanger 4 is connected to an air inlet of the second fan 9; and an air outlet of the third fan 9 is connected to an air inlet of the solar photovoltaic 3. Condensation water extraction process, i.e. part of the first and third air paths: the solar photovoltaic photo-thermal integrated assembly 3 collects solar energy and heats the solar energy to obtain high-temperature air, the high-temperature air is used for runner regeneration, namely water vapor adsorbed by the runner 1 is released to flowing air, and then the second air outlet of the runner 1 obtains high-temperature high-humidity air. The high-temperature and high-humidity air is introduced into the condensing heat exchanger 4 through the first flow channel inlet of the condensing heat exchanger 4; the fresh air 11 is used as heat exchange fluid, high-temperature and high-humidity air is cooled and condensed in a first flow channel of the condensing heat exchanger 4 to obtain liquid water 31 at an outlet of the condensing heat exchanger, the fresh air 11 is heated, the obtained high-temperature air is discharged out of a room through a second air outlet 16, and the air discharged from an air outlet 23 of the condensing heat exchanger 4 is sent back to the solar photovoltaic photo-thermal integrated component 3 again to form a circulation loop. The obtained liquid water 31 at the outlet of the condensing heat exchanger can be understood as liquid condensate water for meeting the operation requirement of the system and providing domestic water.
(2) Condensed water utilization process, i.e. liquid water path: after a part of liquid water 31 at the outlet of the condensing heat exchanger becomes dew point type evaporation heat exchanger spray water 32, the spray water enters the water inlet of the first water pump 5; the water outlet of the first water pump 5 is connected to the second flow channel of the dew point type evaporation heat exchanger 2, and the other part of the liquid water 31 at the outlet of the condensation heat exchanger is discharged from the water outlet 33.
Air supply and temperature reduction processes: the air inlet 12 and the air supply outlet 15 of the dew-point type evaporation heat exchanger are a flow channel and are marked as a first flow channel of the dew-point type evaporation heat exchanger; the air inlet 12 of the dew-point type evaporative heat exchanger 2 and the air return opening 13 of the dew-point type evaporative heat exchanger 2 are the other flow passages and are marked as third flow passages; the first exhaust port 14 of the dew-point type evaporative heat exchanger 2 and the inlet of the return air 13 of the dew-point type evaporative heat exchanger 2 are the other flow channel and are marked as the second flow channel of the dew-point type evaporative heat exchanger.
Rotating wheel dehumidification process: fresh air 11 gets into the first air intake of runner 1 after the regeneration under the effect of first fan 8, and its vapor that contains is adsorbed by runner 1, is heated by the adsorption heat that runner 1 released simultaneously, and the first air outlet of runner 1 obtains the low humid air of medium temperature. A part of the medium-temperature medium-humidity air is introduced into the first flow channel of the dew-point type evaporation heat exchanger 2 through the air inlet 12 of the dew-point type evaporation heat exchanger 2. The liquid water 31 at the outlet of the condensing heat exchanger obtained by the condensing heat exchanger 4 is introduced into the second flow channel of the dew-point type evaporating heat exchanger 2 through the first fan 5 to serve as spray water, namely the spray water 32 of the dew-point type evaporating heat exchanger; and the other part of the medium-temperature and medium-humidity air is introduced into a third flow passage of the dew-point type evaporation heat exchanger 2. Air exhausted from a return air inlet 13 of the dew-point evaporation heat exchanger 2 is humidified and cooled, so that low-temperature high-humidity air is obtained and is exhausted to the outside through a first air outlet 14, meanwhile, medium-temperature medium-humidity air introduced from an inlet is cooled through a fourth flow passage of the dew-point evaporation heat exchanger, the absolute moisture content is unchanged, and the air is changed into air supply with proper temperature and humidity and is used for air conditioning of buildings. The remaining liquid condensate is discharged through the drain port 33 for supplying domestic water.
(3) Fig. 2 shows the change in the air state in the above (2). The processes from the fresh air 111 to the air inlet 121 of the dew-point heat exchanger are an equal enthalpy dehumidification process of the rotating wheel, the processes from the air inlet 121 to the air supply outlet 151 of the dew-point heat exchanger are an equal moisture content cooling process, and the processes from the return air inlet 131 to the first exhaust port 141 of the dew-point heat exchanger are a heating and humidifying process of heat exchange fluid of the dew-point heat exchanger 2. The fresh air 111 to the second exhaust air 161 is a constant moisture content temperature rise process of the fresh air 111 through the condensing heat exchanger.
(4) The system can independently adjust the air supply degree according to the use requirement, namely the temperature and the humidity of the air discharged from the air outlet 15, and is realized by controlling and adjusting the rotating speed of the rotating wheel 1 and the flow of the regenerated air, and the temperature control is realized by adjusting the water adding amount and the air supply/exhaust ratio of the indirect evaporative cooler 7.
As shown in fig. 3 and 4, for the described open type temperature and humidity independent control solar direct-drive air conditioning system adopting the indirect evaporative condenser 7, the working process is as follows:
(1) the runner regeneration process is, namely, the first path of the air path: an air outlet of the solar photovoltaic and photo-thermal integrated component 3 is connected with an air collector air outlet 21 of the rotating wheel 1, and a rotating wheel air outlet 22 of the rotating wheel 1 is connected to a first flow passage of the condensing heat exchanger 4; a condenser heat exchanger air outlet 23 of the condensing heat exchanger 4 is connected to an air inlet of the third fan 9; the first flow channel opening of the condensing heat exchanger 4 and the air outlet 23 of the condenser heat exchanger are the same flow channel and are marked as a first flow channel of the condensing heat exchanger 4; and an air outlet of the third fan 9 is connected to an air inlet of the solar photovoltaic 3.
The condensation water taking process is that a third path: an air outlet of the second fan 8 is connected to a fourth runner port of the condensing heat exchanger 4; the fifth flow passage of the condensing heat exchanger 4 forms a second air outlet 16. And the fourth runner port of the condensing heat exchanger 4 and the fifth runner port of the condensing heat exchanger 4 are the same runner port and are marked as a second runner of the condensing heat exchanger 4.
The solar photovoltaic and photo-thermal integrated component 3 can be replaced by an air heat collector according to the needs, and therefore the details are not repeated; the solar photovoltaic photo-thermal integrated assembly 3 collects solar energy and heats the solar energy to obtain high-temperature air, the high-temperature air is used for runner regeneration, namely water vapor adsorbed by the runner 1 is released to flowing air, and then the second air outlet of the runner 1 obtains high-temperature high-humidity air. The high-temperature and high-humidity air is introduced into the condensing heat exchanger 4 through a first flow passage of the condensing heat exchanger 4; the fresh air 11 is used as heat exchange fluid, the high-temperature and high-humidity air is cooled and condensed in the second flow channel of the condensing heat exchanger 4 to obtain liquid water 31 at the outlet of the condensing heat exchanger, the fresh air 11 is heated, the obtained high-temperature air is discharged out of a room through the second air outlet 16, and the air discharged from the air outlet 23 of the condensing heat exchanger 4 is sent back to the solar photovoltaic photo-thermal integrated component 3 again to form a circulation loop. The obtained liquid water 31 at the outlet of the condensing heat exchanger can be understood as liquid condensate water for meeting the operation requirement of the system and providing domestic water.
(2) The rotary wheel dehumidification process is, namely, a second path: the air outlet of the second fan 8 is connected to the first air inlet of the runner 1, and the first outlet of the runner is connected to the indirect evaporative cooler air inlet 71 of the indirect evaporative cooler 7, i.e. the first flow passage, and is discharged from the air supply outlet 15.
Condensed water utilization process, i.e. liquid water path: after a part of the liquid water 31 at the outlet of the condensing heat exchanger becomes spray water 73 of the indirect evaporative cooler, the spray water enters the air inlet of the first fan 5; the air outlet of the first fan 5 is connected to the indirect evaporative cooler 7, and the other part of the liquid water 31 at the outlet of the condensing heat exchanger is discharged from the water outlet 33.
Air supply and temperature reduction processes: the air inlet 71 and the air supply outlet 15 of the indirect evaporative cooler are a first flow channel and are marked as a first flow channel of the dew-point evaporative heat exchanger; the indirect evaporative cooler air inlet 71 and the indirect evaporative cooler air return 72, that is, the third flow passage of the indirect evaporative cooler 7 and the first exhaust port 14, that is, the fourth flow passage of the indirect evaporative cooler 7 are another flow passage, and are marked as a second flow passage of the dew-point evaporative heat exchanger.
Rotating wheel dehumidification process: fresh air 11 gets into the first air intake of runner 1 after the regeneration under the effect of second fan 8, and its vapor that contains is adsorbed by runner 1, is heated by the adsorption heat that runner 1 released simultaneously, and the first export of runner 1 obtains the low humid air of medium temperature. A part of the medium temperature and medium humidity air is introduced into the indirect evaporative cooler 7 through an air inlet 71 of the indirect evaporative cooler 7, and the air inlet 71 of the indirect evaporative cooler and the air outlet 15 form the same flow channel. The liquid water 31 at the outlet of the condensing heat exchanger obtained by the condensing heat exchanger 4 is introduced into the second flow passage of the indirect evaporative cooler 7 through the first fan 5 to serve as spray water, namely spray water 73 of the indirect evaporative cooler; another part of the medium temperature and humidity air is passed into the third flow channel of the indirect evaporative cooler 7. The air discharged from the air return opening 72 of the indirect evaporative cooler 7 is humidified and cooled to obtain low-temperature high-humidity air, and the low-temperature high-humidity air is discharged to the outside through the first air outlet 14, and meanwhile, the medium-temperature medium-humidity air introduced from the inlet is cooled through the fourth flow passage of the dew-point evaporative heat exchanger, and the absolute moisture content is unchanged, so that the air is changed into air supply with proper temperature and humidity, and the air supply is used for air conditioning of buildings. The remaining liquid condensate is discharged through the drain port 33 for supplying domestic water.
(3) Fig. 4 shows the change of the air state of (2) of the above-described another embodiment. The fresh air 111 to the air inlet 712 of the indirect evaporative condenser is an equal enthalpy dehumidification process of the rotating wheel, the temperature reduction process from the air inlet 712 of the indirect evaporative condenser to the air outlet 151 of the indirect evaporative condenser is an equal moisture content, and the temperature increase and humidification process from the air return 722 of the indirect evaporative condenser to the air outlet 141 of the indirect evaporative condenser 7 is a heat exchange fluid. Fresh air 111 to second exhaust air 161 is the constant moisture content temperature rise process of the fresh air 111 through the condensing heat exchanger
(4) The system can independently adjust the temperature and the humidity of the air supply 15 according to the use requirement, the temperature control is realized by adjusting the rotating speed of the rotating wheel and the flow of the regeneration air, and the temperature control is realized by adjusting the water adding amount and the air supply/exhaust ratio of the evaporative cooler.
When the system works, the processes of runner regeneration, dehumidification, condensation water taking, air supply and temperature reduction are realized by completely depending on solar energy, so that the consumption of electric power and water resources is reduced, and the pressure of a power grid is relieved. In the runner regeneration process, a large amount of water vapor contained in the air at the outlet of the runner is converted into liquid condensate water through the condensing heat exchanger to be recycled, and the liquid condensate water is used for meeting the spray water requirement of the evaporative cooler so as to realize the air supply and temperature reduction process. The remaining liquid condensate can also be used for providing domestic water. In addition, the system can realize the independent control of the temperature and the humidity of the supplied air, the humidity control is realized by adjusting the rotating speed of the rotating wheel and the flow of the regenerated air, the temperature control is realized by adjusting the water adding amount of the evaporative cooler and the air supply/exhaust ratio, and the thermal comfort of the building can be greatly improved.
It should be noted that the use of the ordinal adjectives "first", "second", and "third", etc., to describe a common object, merely indicate that different instances of like objects are being referred to, and are not intended to imply that the objects so described must be in a given sequence, either temporally, spatially, in ranking, or in any other manner.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
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| CN112240616B (en) * | 2020-09-21 | 2022-05-27 | 依米康科技集团股份有限公司 | Energy-saving evaporative condensing cold water air conditioning unit system and control method |
| CN112439306B (en) * | 2020-11-09 | 2022-12-23 | 黑龙江建筑职业技术学院 | Indoor moisture discharge device of building electric general control |
| CN113623792A (en) * | 2021-08-18 | 2021-11-09 | 惠州市合之宝环境设备有限公司 | Solar indirect evaporation type dehumidification air conditioner and cooling method |
| CN114322330B (en) * | 2021-12-27 | 2023-08-29 | 内蒙古工业大学 | A solar energy-based integrated circulation drying water intake device and method |
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| CN100510558C (en) * | 2007-09-13 | 2009-07-08 | 上海交通大学 | Single runner two stage dehumidify air-conditioner driven by solar |
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| CN107490100A (en) * | 2017-07-18 | 2017-12-19 | 上海交通大学 | Photovoltaic and photothermal drive-type dehumidification system for runner and its operation method |
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