CN108592269B - Air conditioning system for comprehensively utilizing natural cold and heat sources and control method - Google Patents
Air conditioning system for comprehensively utilizing natural cold and heat sources and control method Download PDFInfo
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- CN108592269B CN108592269B CN201810495126.9A CN201810495126A CN108592269B CN 108592269 B CN108592269 B CN 108592269B CN 201810495126 A CN201810495126 A CN 201810495126A CN 108592269 B CN108592269 B CN 108592269B
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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
- 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
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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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
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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
- F24F3/1405—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 in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit
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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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- 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
- F24F2005/0053—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 receiving heat-exchange fluid from a well
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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
- 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
- Y02B10/40—Geothermal heat-pumps
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/54—Free-cooling systems
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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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 Development (AREA)
- Sustainable Energy (AREA)
- Other Air-Conditioning Systems (AREA)
- Air Conditioning Control Device (AREA)
- Central Air Conditioning (AREA)
Abstract
The invention provides a natural cold and heat source comprehensive utilization air conditioning system which comprises a compressor, a condenser, a throttling mechanism, an evaporator, a first water pump, a water treatment instrument, a second water pump, terminal equipment and first to twelfth through valves, wherein the first through valves are connected with the condenser; the tail end equipment comprises an air inlet section, an air quantity adjusting section, a dehumidifying section, a neutralizing section, a cooling heating section and a fan section which are sequentially arranged, wherein a first air channel and a second air channel which are independent are arranged in the tail end equipment, air in the first air channel and air in the second air channel are subjected to non-contact heat exchange in the neutralizing section, the cooling heating section of the first air channel is provided with a heat exchange coil, the dehumidifying section of the second air channel is provided with a dehumidifying coil, and a fan is arranged in the fan section; the water treatment instrument is connected with a surface water source. The invention also provides a control method of the air conditioning system for comprehensively utilizing the natural cold and heat sources, which saves energy and ensures the comfort of the air conditioner, and can adapt to various working conditions.
Description
Technical Field
The invention relates to the technical field of comprehensive utilization of natural cold and heat sources of surface water, in particular to an air conditioning system for comprehensive utilization of natural cold and heat sources and a control method.
Background
The building energy consumption rate is nearly 30% of the whole social energy consumption rate, and in the building energy consumption, the building air conditioner energy consumption is continuously increased, and the air conditioner and heating energy consumption rate is about 45%, so that the building energy consumption rate is an important field of building energy conservation. Traditional building air conditioner (like central air conditioner) adopts mechanical refrigeration mode to supply cold, and with dehumidification and refrigeration heating design in same wind channel, refrigeration and dehumidification all need be realized through refrigerating system, and the energy consumption is big.
Disclosure of Invention
One of the technical problems to be solved by the invention is to provide a natural cold and heat source comprehensive utilization air conditioning system, which saves energy and ensures the comfort of the air conditioner, and can adapt to various working conditions.
One of the technical problems to be solved by the invention is realized in the following way: an air conditioning system for comprehensively utilizing natural cold and heat sources comprises a compressor, a condenser, a throttling mechanism, an evaporator, a first water pump, a water treatment instrument, a second water pump, terminal equipment, a first two-way valve, a second two-way valve, a third two-way valve, a fourth two-way valve, a fifth two-way valve, a sixth two-way valve, a seventh two-way valve, an eighth two-way valve, a ninth two-way valve and a twelfth two-way valve;
the tail end equipment comprises an air inlet section, an air quantity adjusting section, a dehumidifying section, a neutralizing section, a cooling heating section and a fan section which are sequentially arranged, wherein a first air channel and a second air channel which are independent are arranged in the tail end equipment, air in the first air channel and air in the second air channel are subjected to non-contact heat exchange in the neutralizing section, the cooling heating section of the first air channel is provided with a heat exchange coil, the dehumidifying section of the second air channel is provided with a dehumidifying coil, and a fan is arranged in the fan section;
the compressor, the condenser, the throttling mechanism and the evaporator are sequentially connected, and the evaporator is connected to the compressor to form a closed loop;
the input end of the heat exchange coil is connected with the output end of the second water pump through a first two-way valve and is connected with the outlet of the condenser through a third two-way valve, the output end of the heat exchange coil is connected with the ground surface through a sixth two-way valve and is connected with the input end of the second water pump through a fifth two-way valve, and the input end of the second water pump is connected with the water treatment instrument through a tenth two-way valve;
the input end of the dehumidification coil pipe is connected with the output end of the first water pump through a seventh two-way valve, the output end of the dehumidification coil pipe is connected with the inlet of the evaporator, the inlet of the evaporator is connected with the water treatment instrument through a third two-way valve, the input end of the first water pump is connected with the outlet of the evaporator, and the output end of the first water pump is also connected with the ground surface through an eighth two-way valve;
the water treatment instrument is connected with a surface water source.
Further, the air quantity adjusting section is provided with a separation plate for adjusting the opening ratio of the first air channel and the second air channel, and one end of the separation plate is rotatably arranged between the first air channel and the second air channel. The air inlet quantity of the first air channel and the second air channel can be adjusted through the air quantity adjusting section, so that the heat load and the wet load are adjusted, and the heat load and the wet load are adjusted.
Furthermore, a heat exchange device is arranged in the neutralization section, so that the air supply temperature of the first air channel and the second air channel is uniform.
The second technical problem to be solved by the invention is to provide the natural cold and heat source comprehensive utilization air conditioning system, which saves energy and ensures the comfort of the air conditioner, and can adapt to various working conditions.
The second technical problem to be solved by the invention is realized in the following way: a control method of a natural cold and heat source comprehensive utilization air conditioning system is provided, and the method comprises the following steps:
step 10, when the air conditioner is used in summer, the working condition in summer is started for dehumidification and cooling:
starting a first two-way valve, a second two-way valve, a fourth two-way valve, a sixth two-way valve, a seventh two-way valve, a tenth two-way valve, a compressor, a first water pump and a second water pump, closing other two-way valves, enabling a part of surface water source to enter a condenser to absorb heat through the second two-way valve after passing through a water treatment instrument, the twelfth two-way valve and the second water pump in sequence, enabling the other part of surface water source to enter a heat exchange coil to absorb heat through the first two-way valve, and discharging two parts of water to the surface through the sixth two-way valve; the water in the evaporator passes through the first water pump, enters the dehumidifying coil pipe through the seventh two-way valve and then returns to the evaporator to form a chilled water loop; the compressor drives the refrigerant to sequentially pass through the condenser, the throttling mechanism and the evaporator to run;
step 20, when the device is used in winter, starting heating operation under winter working conditions:
starting a second two-way valve, a third two-way valve, a fifth two-way valve, an eighth two-way valve, a ninth two-way valve, a compressor, a first water pump and a second water pump, closing other two-way valves, forming a closed loop by the condenser and the heat exchange coil, enabling loop water to enter the condenser through the second two-way valve to absorb heat, entering the heat exchange coil through the third two-way valve to exchange heat, and returning to the input end of the second water pump through the fifth two-way valve; the surface water source enters an evaporator for heat exchange through a water treatment instrument and a ninth two-way valve, and is discharged to the surface through a first water pump and an eighth two-way valve; the compressor drives the refrigerant to run through the condenser, the throttling structure and the evaporator in sequence;
and 30, in a transitional season, opening the first two-way valve, the sixth two-way valve, the twelfth two-way valve and the second water pump, closing the compressor, the first water pump and the other two-way valves, and discharging the surface water source into the surface through the sixth two-way valve after the surface water source sequentially enters the heat exchange coil through the water treatment instrument, the twelfth two-way valve, the second water pump and the first two-way valve to absorb heat or release heat.
The invention has the following advantages:
1. the shallow surface water is used as a direct cold source and an indirect cold source at the same time, pipeline systems under different working conditions are designed, the natural cold source is fully utilized, the comfort of the air conditioner is ensured, the air conditioner is flexibly adapted to the operation under various working conditions, the energy-saving effect is obvious, and the air conditioner can be widely popularized;
2. the novel terminal equipment is arranged to realize independent temperature control and dehumidification, and simultaneously, two air channels are adopted to perform heat exchange to realize uniform temperature air supply, so that the comfort level is improved;
3. the air conditioning system can be controlled and regulated through reasonable design to realize the stable operation of the air conditioning system in winter, summer and transitional seasons;
4. the system has compact structure and good adaptability.
Drawings
The invention will be further described with reference to examples of embodiments with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an air conditioning system for comprehensive utilization of natural cold and heat sources according to the present invention.
Fig. 2 is a flowchart illustrating a control method of an air conditioning system for comprehensive utilization of natural cold and heat sources according to the present invention.
Reference numerals illustrate:
1-compressor, 2-condenser, 3-throttle mechanism, 4-evaporimeter, 5-first water pump, 6-water treatment appearance, 7-second water pump, 8-end equipment, 81-heat transfer coil, 82-dehumidification coil, 83-fan, 84-division board, 85-heat transfer device, 9-surface water source, x 1-first two-way valve, x 2-second two-way valve, x 3-third two-way valve, x 4-fourth two-way valve, x 5-fifth two-way valve, x 6-sixth two-way valve, y 1-seventh two-way valve, y 2-eighth two-way valve, y 3-ninth two-way valve, y 4-twelfth two-way valve.
Detailed Description
As shown in FIG. 1, the air conditioning system for comprehensive utilization of natural cold and heat sources comprises a compressor 1, a condenser 2, a throttling mechanism 3, an evaporator 4, a first water pump 5, a water treatment instrument 6, a second water pump 7, terminal equipment 8, a first two-way valve x1, a second two-way valve x1, a third two-way valve x1, a fourth two-way valve x1, a fifth two-way valve x1, a sixth two-way valve x1, a seventh two-way valve y1, an eighth two-way valve y2, a ninth two-way valve y3, a twelfth two-way valve y4, a pipeline and the like;
the tail end equipment 8 (such as an indoor central air conditioner and the like) comprises an air inlet section a, an air quantity adjusting section b, a dehumidifying section c, a neutralizing section d, a cooling heating section e and a fan section f which are sequentially arranged, wherein a first air channel I and a second air channel II which are independent are arranged in the tail end equipment 8, air in the first air channel I and the second air channel II performs non-contact heat exchange in the neutralizing section d, the cooling heating section e of the first air channel I is provided with a heat exchange coil 81, the dehumidifying section c of the second air channel II is provided with a dehumidifying coil 82, and a fan 83 is arranged in the fan section f;
the compressor 1, the condenser 2, the throttling mechanism 3 and the evaporator 4 are connected in sequence, and the evaporator 4 is connected to the compressor 1 to form a closed loop;
the input end of the heat exchange coil 81 is connected with the output end of the second water pump 7 through a first two-way valve x1 and is connected with the outlet of the condenser 2 through a third two-way valve x3, the output end of the heat exchange coil 81 is connected with the ground surface through a sixth two-way valve x6 and is connected with the input end of the second water pump 7 through a fifth two-way valve x5, and the input end of the second water pump 7 is connected with the water treatment instrument 6 through a twelfth two-way valve y 1;
the input end of the dehumidification coil 82 is connected with the output end of the first water pump 5 through a seventh two-way valve y1, the output end of the dehumidification coil 82 is connected with the inlet of the evaporator 4, the inlet of the evaporator 4 is connected with the water treatment instrument 6 through a third two-way valve x3, the input end of the first water pump 5 is connected with the outlet of the evaporator 4, and the output end of the first water pump 5 is also connected with the ground surface through an eighth two-way valve y 2;
the water treatment instrument 6 is connected with a surface water source 9.
Preferably, the air quantity adjusting section b is provided with a separation plate 84 for adjusting the opening ratio of the first air channel I and the second air channel II, and one end of the separation plate 84 is rotatably arranged between the first air channel I and the second air channel II.
Preferably, a heat exchange device 85 is disposed in the neutralization section d.
Referring to fig. 2, the control method of the air conditioning system for comprehensive utilization of natural cold and heat sources according to the present invention needs to provide the air conditioning system for comprehensive utilization of natural cold and heat sources, and the method comprises the following steps:
step 10, when the air conditioner is used in summer, the working condition in summer is started for dehumidification and cooling:
starting a first two-way valve x1, a second two-way valve x2, a fourth two-way valve x4, a sixth two-way valve x6, a seventh two-way valve y1, a twelfth two-way valve y4, a compressor 1, a first water pump 5 and a second water pump 7, closing other two-way valves, enabling a surface water source 9 to sequentially pass through a water treatment instrument 6, the twelfth two-way valve y4 and the second water pump 7, enabling one part of the surface water source 9 to enter a condenser 2 through the second two-way valve x2 to absorb heat, enabling the other part of the surface water source to enter a heat exchange coil 81 through the first two-way valve x1 to absorb heat, and enabling two parts of water to be discharged to the surface through the sixth two-way valve x 6; the water in the evaporator 4 enters the dehumidifying coil 82 through the seventh two-way valve y1 by the first water pump 5 and returns to the evaporator 4 to form a chilled water loop; the compressor 1 drives the refrigerant to sequentially pass through the condenser 2, the throttling mechanism 5 and the evaporator 4 to run;
step 20, when the device is used in winter, starting heating operation under winter working conditions:
starting a second two-way valve x2, a third two-way valve x3, a fifth two-way valve x5, an eighth two-way valve y2, a ninth two-way valve y3, a compressor 1, a first water pump 5 and a second water pump 7, closing other two-way valves, enabling the condenser 2 and the heat exchange coil 81 to form a closed loop, enabling loop water to enter the condenser 2 through the second two-way valve x2 to absorb heat, enabling loop water to enter the heat exchange coil 81 through the third two-way valve x3 to exchange heat, and enabling loop water to return to the input end of the second water pump 7 through the fifth two-way valve x 5; the surface water source 9 enters the evaporator 4 through the water treatment instrument 6 and the ninth two-way valve y3 to exchange heat, and is discharged to the surface through the first water pump 5 and the eighth two-way valve y 2; the compressor 1 drives the refrigerant to sequentially pass through the condenser 2, the throttling structure 3 and the evaporator 4 to run;
step 30, in the transitional season, the first two-way valve x1, the sixth two-way valve x6, the twelfth two-way valve y4 and the second water pump 7 are opened, the compressor 1, the first water pump 5 and other two-way valves are closed, and the surface water source 9 sequentially enters the heat exchange coil 81 through the water treatment instrument 6, the twelfth two-way valve y4, the second water pump 7 and the first two-way valve x1 to absorb heat or release heat, and then is discharged to the surface through the sixth two-way valve x 6. In the transition season, for example, the period from summer to winter or from winter to summer, the aim of heating or refrigerating can be achieved according to the execution process of the step 30 due to the difference of the air temperature and the surface water source temperature, the effect of warm in winter and cool in summer is achieved, and natural resources are fully utilized.
The invention mainly comprises a surface water system, a refrigerating system and an air conditioner tail end system, utilizes shallow surface water, and simultaneously serves as heat exchange medium of a condenser or an evaporator in a tail end equipment cooling heating section and the refrigerating system, namely, the heat exchange medium can serve as a direct cold heat source and an indirect cold heat source at the same time, and a pipeline system under different working conditions is designed, so that the heat exchange system is flexibly suitable for running under various working conditions, ensures the comfort of the air conditioner, has obvious energy-saving effect and can be widely popularized; the novel tail end equipment is arranged to realize independent temperature control and dehumidification, and the neutralization section is arranged to perform non-contact heat exchange on the two air channels so as to realize uniform-temperature air supply, so that the comfort level is improved; the invention has reasonable design of operation control and adjustment, and realizes the stable operation of the air conditioning system in winter, summer and transitional seasons; meanwhile, the system has compact structure and good adaptability.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the invention, and that equivalent modifications and variations of the invention in light of the spirit of the invention will be covered by the claims of the present invention.
Claims (3)
1. A control method of an air conditioning system for comprehensively utilizing natural cold and heat sources is characterized by comprising the following steps: the natural cold and heat source comprehensive utilization air conditioning system comprises a compressor, a condenser, a throttling mechanism, an evaporator, a first water pump, a water treatment instrument, a second water pump, terminal equipment, a first two-way valve, a second two-way valve, a third two-way valve, a fourth two-way valve, a fifth two-way valve, a sixth two-way valve, a seventh two-way valve, an eighth two-way valve, a ninth two-way valve and a twelfth two-way valve;
the tail end equipment comprises an air inlet section, an air quantity adjusting section, a dehumidifying section, a neutralizing section, a cooling heating section and a fan section which are sequentially arranged, wherein a first air channel and a second air channel which are independent are arranged in the tail end equipment, air in the first air channel and air in the second air channel are subjected to non-contact heat exchange in the neutralizing section, the cooling heating section of the first air channel is provided with a heat exchange coil, the dehumidifying section of the second air channel is provided with a dehumidifying coil, and a fan is arranged in the fan section;
the compressor, the condenser, the throttling mechanism and the evaporator are sequentially connected, and the evaporator is connected to the compressor to form a closed loop;
the input end of the heat exchange coil is connected with the output end of the second water pump through a first two-way valve and is connected with the outlet of the condenser through a third two-way valve, the output end of the heat exchange coil is connected with the ground surface through a sixth two-way valve and is connected with the input end of the second water pump through a fifth two-way valve, and the input end of the second water pump is connected with the water treatment instrument through a tenth two-way valve;
the input end of the dehumidification coil is connected with the output end of the first water pump through a seventh two-way valve, the output end of the dehumidification coil is connected with the inlet of the evaporator, the inlet of the evaporator is connected with the water treatment instrument through a ninth two-way valve, the input end of the first water pump is connected with the outlet of the evaporator, and the output end of the first water pump is also connected with the ground surface through an eighth two-way valve;
the water treatment instrument is connected with a surface water source;
the control method comprises the following steps:
step 10, when the air conditioner is used in summer, the working condition in summer is started for dehumidification and cooling:
starting a first two-way valve, a second two-way valve, a fourth two-way valve, a sixth two-way valve, a seventh two-way valve, a tenth two-way valve, a compressor, a first water pump and a second water pump, closing other two-way valves, enabling a part of surface water source to enter a condenser to absorb heat through the second two-way valve after passing through a water treatment instrument, the twelfth two-way valve and the second water pump in sequence, enabling the other part of surface water source to enter a heat exchange coil to absorb heat through the first two-way valve, and discharging two parts of water to the surface through the sixth two-way valve; the water in the evaporator passes through the first water pump, enters the dehumidifying coil pipe through the seventh two-way valve and then returns to the evaporator to form a chilled water loop; the compressor drives the refrigerant to sequentially pass through the condenser, the throttling mechanism and the evaporator to run;
step 20, when the device is used in winter, starting heating operation under winter working conditions:
starting a second two-way valve, a third two-way valve, a fifth two-way valve, an eighth two-way valve, a ninth two-way valve, a compressor, a first water pump and a second water pump, closing other two-way valves, forming a closed loop by the condenser and the heat exchange coil, enabling loop water to enter the condenser through the second two-way valve to absorb heat, entering the heat exchange coil through the third two-way valve to exchange heat, and returning to the input end of the second water pump through the fifth two-way valve; the surface water source enters an evaporator for heat exchange through a water treatment instrument and a ninth two-way valve, and is discharged to the surface through a first water pump and an eighth two-way valve; the compressor drives the refrigerant to run through the condenser, the throttling structure and the evaporator in sequence;
and 30, in a transitional season, opening the first two-way valve, the sixth two-way valve, the twelfth two-way valve and the second water pump, closing the compressor, the first water pump and the other two-way valves, and discharging the surface water source into the surface through the sixth two-way valve after the surface water source sequentially enters the heat exchange coil through the water treatment instrument, the twelfth two-way valve, the second water pump and the first two-way valve to absorb heat or release heat.
2. The control method of the natural cold and heat source comprehensive utilization air conditioning system according to claim 1, wherein the control method comprises the following steps: the air quantity adjusting section is provided with a separation plate for adjusting the opening ratio of the first air channel and the second air channel, and one end of the separation plate is rotatably arranged between the first air channel and the second air channel.
3. The control method of the natural cold and heat source comprehensive utilization air conditioning system according to claim 1, wherein the control method comprises the following steps: and a heat exchange device is arranged in the neutralization section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810495126.9A CN108592269B (en) | 2018-05-22 | 2018-05-22 | Air conditioning system for comprehensively utilizing natural cold and heat sources and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN101603715B (en) * | 2009-07-07 | 2011-07-06 | 河南科技大学 | Ground source heat pump air-conditioning system and air processing method thereof |
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