CN111536638A - Integrated air conditioning system based on air source and solar energy coupling - Google Patents
Integrated air conditioning system based on air source and solar energy coupling Download PDFInfo
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- CN111536638A CN111536638A CN202010248506.XA CN202010248506A CN111536638A CN 111536638 A CN111536638 A CN 111536638A CN 202010248506 A CN202010248506 A CN 202010248506A CN 111536638 A CN111536638 A CN 111536638A
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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
- 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
- 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
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/40—Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an integrated air conditioning system based on air source and solar energy coupling, which comprises a water loop, an air loop and a solar energy loop, wherein the solar energy and the air source coupling provide cold (heat) for the air conditioning system together. The chilled water cascade utilization device is adopted, the problem of waste heat recovery is solved, and the energy utilization rate is high. When the solar energy-saving air conditioner runs in winter, a solar energy parallel air source combined supply mode is adopted when sunlight is sufficient, otherwise, an air source single supply and solar energy auxiliary energy storage power supply mode is adopted. When the solar energy water heater operates in summer, an air source single-supply and solar energy auxiliary energy storage power supply mode is adopted. When the system is just started or the indoor heat and humidity load is large, an air supply and surrounding type radiation mixed cooling and heating mode is adopted. When the system runs stably or the indoor heat and humidity load is small, the surrounding radiation is adopted as a main body to assist in an air supply, cold supply and heat supply mode. The surrounding type radiation system has higher thermal comfort and space utilization, and the air supply system has faster starting characteristic and better dehumidification capacity.
Description
Technical Field
The invention belongs to the field of air conditioners, and relates to an integrated air conditioning system based on air source and solar energy coupling.
Background
The solar heating technology is beneficial to energy conservation and emission reduction, and has made great progress in the research and development of system structures such as a water tank heat exchange type system, a phase change heat storage type system and the like. In the field of air conditioners, the solar heat storage and energy storage technology is mainly applied to heating, and the application of cooling working conditions in summer is complex. The air source heat pump is a high-efficiency energy-saving technology which takes air as a low-temperature heat source and converts low-level energy into high-level energy by inputting a small amount of electric energy for driving, but under the cold working condition in winter, the problems of heat supply capacity and performance coefficient reduction exist, and solar energy is needed for auxiliary heat supply.
The traditional radiation air-conditioning system can not independently treat indoor moisture load, the heat exchange capacity of a unit radiation plate is about 50-80W/square meter, when the indoor load is large, the laying area of the radiation plate is large, and the space utilization rate is low. Although the traditional air supply air conditioning system has strong capacity of processing heat and humidity loads, the traditional air supply air conditioning system has the characteristics of large fan energy consumption, poor thermal comfort and the like. In the current field, mostly, a roof/floor radiation and air supply system operates in a combined mode, and the system coupling is poor.
In summary, the coupling utilization of solar energy and air energy, radiation heat exchange and convection air supply heat exchange has specific limitations at present, and no air conditioning system can utilize solar energy and air energy and has two capacities of radiation heat exchange and convection air supply heat exchange in a high coupling degree mode.
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide an indoor surrounding type radiation air supply integrated air conditioning system based on air source and solar energy coupling, which utilizes solar energy and air source coupling to provide cooling (heating) capacity for the air conditioning system.
The technical scheme of the invention is as follows:
the utility model provides an integration air conditioning system based on air source and solar energy coupling which characterized in that: comprises an air source loop, an air loop and a solar loop;
the solar energy loop comprises a solar heat collector (12), a first temperature sensor (13), a second circulating water pump (14), a first manual regulating valve (15), a second electromagnetic flow meter (16), a second temperature sensor (17), a four-way reversing valve (18), a surrounding type heat exchange coil (19), a second manual regulating valve (21), a second filter (22), a water supplementing valve (23), a first check valve (24), a first electromagnetic valve (25), a second check valve (26), a second electromagnetic valve (27), a phase change energy storage device (28), a third temperature sensor (29), a first switch (36), an auxiliary electric heater (5), a second switch (37), a heat pump unit (1), a third check valve (30), a third electromagnetic valve (31), a fourth check valve (32) and a fourth electromagnetic valve (33);
the output end of the solar thermal collector (12) is connected with the input end of a first temperature sensor (13), a first branch of the output end of the first temperature sensor (13) is connected with the input end of a second circulating water pump (14), a first branch of the output end of the second circulating water pump (14) is sequentially connected with a first manual regulating valve (15), a second electromagnetic flow meter (16) and a second temperature sensor (17), the first branch of the output end of the four-way reversing valve is connected with the input end of a second manual regulating valve (21) through a connecting port of the four-way reversing valve (18) and a connecting ring-wound heat exchange coil (19)/the other connecting port of the four-way reversing valve (18), the first branch of the output end of the four-way reversing valve is connected with the input end of the second manual regulating valve (21), the first branch of the output end of the four-way;
a second branch of the output end of the first temperature sensor (13) is sequentially connected with a first check valve (24) and a first electromagnetic valve (25), the output end of the first electromagnetic valve (25) is connected with the input end of a phase change energy storage device (28), and the phase change energy storage device (28) is provided with a third temperature sensor (29); a first branch of an output end of the phase change energy storage device (28) is sequentially connected with a third check valve (30) and a third electromagnetic valve (31), a second branch of the phase change energy storage device (28) is sequentially connected with a fourth check valve (32) and a fourth electromagnetic valve (33), and an output end of the third electromagnetic valve (31) and an output end of the fourth electromagnetic valve (33) are converged with an output end of a second manual regulating valve (21) and connected with an input end of a second filter (22);
the air loop comprises an axial flow fan (9), a plate type heat exchanger (6), a radiation air supply integrated tail end (10), a user side room (11) and a surrounding type heat exchange coil (19); the radiation air supply integrated tail end (10) comprises a shell (10a), an inducer (10b), an indoor air return opening (10c) and a radiation hole plate (10 d); the inlet end of an axial flow fan (9) is communicated with outdoor fresh air, the outlet end of the axial flow fan is connected with a plate type heat exchanger (6), air is sent to a radiation air supply integrated tail end (10), the air flows at a high speed at an inducer (10b) to generate negative pressure, indoor air flows into an indoor air return port (10c) to be mixed with the fresh air, and the mixed air is sent to a user side room (11) from a radiation hole plate (10d) through a surrounding type heat exchange coil (19);
the air source loop comprises an air source heat pump unit (1), a first filter (2), a first circulating water pump (3), a second electromagnetic flow meter (4), a third manual regulating valve (5), a plate heat exchanger (6), a fourth manual regulating valve (7), an auxiliary electric heater (8), a fifth manual regulating valve (34), a third electromagnetic flow meter (35) and a sixth manual regulating valve (20); the output end of the air source heat pump unit (1) is sequentially connected with a first filter (2) and a first circulating water pump (3), the output end of the first circulating water pump (3) is connected with the input end of a second electromagnetic flowmeter (4), the output end of the second electromagnetic flowmeter (4) is connected with the input end of a plate heat exchanger (6) through a third manual regulating valve (5), the output end of the plate heat exchanger (6) is connected with the input end of an auxiliary electric heater (8) through a fourth manual regulating valve (7), and a first branch of the output end of the auxiliary electric heater (8) is sequentially converged with the output end of a second temperature sensor (17) through a fifth manual regulating valve (34) and a third electromagnetic flowmeter (35) and is connected with the input end of a four-way reversing valve (18); the second branch of the output end of the four-way reversing valve (18) is connected with the input end of a sixth manual regulating valve (20), and the output end of the sixth manual regulating valve (20) is converged with the second branch of the output end of the auxiliary electric heater (8) and connected with the input end of the air source heat pump unit (1).
Further, when the solar energy-air source combined power supply system operates in winter, a solar energy-air source combined power supply mode in series is adopted when sunlight is sufficient, otherwise, an air source single-supply and solar energy-assisted energy storage power supply mode is adopted; when the solar energy water heater operates in summer, an air source single-supply and solar energy auxiliary energy storage power supply mode is adopted.
Further, the air system and the water system jointly operate to supply cold and heat to the user side; when the system is just started or the indoor heat and humidity load is large, an air supply and surrounding type radiation mixed cooling and heating mode is adopted; when the system runs stably or the indoor heat and humidity load is small, the surrounding radiation is adopted as a main body to assist in an air supply, cold supply and heat supply mode.
By the scheme, the invention at least has the following advantages:
1. the cold and heat source equipment has multiple working modes, and solar energy and air energy are coupled and utilized, so that the stability and the energy saving performance of the system are enhanced.
2. The air conditioner has multiple terminal operation modes, and an air system and a water system jointly operate to supply cold and heat to the user side. When the system is just started or the indoor heat and humidity load is large, an air supply and surrounding type radiation mixed cooling and heating mode is adopted. When the system runs stably or the indoor heat and humidity load is small, the surrounding radiation is adopted as a main body to assist in an air supply, cold supply and heat supply mode. The mode is flexibly adjusted, and the device can adapt to seasonal load change and day-night load change.
3. The radiation system has higher thermal comfort and space utilization; the surrounding type heat exchange coil (19) improves the space utilization and increases the radiation heat exchange ratio; the air supply system has the advantages of faster starting characteristic and better dehumidification capability, and the orifice air supply mode enables the lower surface of the radiation plate to form an air film, so that the anti-condensation characteristic is improved.
4. The air conditioner terminal equipment is high in integration degree, has good induced air return characteristic, and can reduce the temperature by 3-5 ℃ compared with the traditional working condition, realize low-temperature air supply, reduce the fresh air quantity and improve the energy saving performance of the system.
5. The cascade utilization of the chilled water (cooling water) of the single cold source unit is realized, and the energy utilization rate is high. The step utilization is embodied in two aspects: the chilled water (cooling water) treated by the plate heat exchanger (6) still has heat exchange capacity after sequentially flowing through the fourth manual regulating valve (7) and the auxiliary electric heater (8), and is sequentially sent into the surrounding type heat exchange coil (19) through the fifth manual regulating valve (34) and the third electromagnetic flowmeter (35) to carry out radiant heat exchange indoors; in summer, low-temperature chilled water flows along the heat exchange pipeline of the top plate, the peripheral walls and the floor, in winter, high-temperature cooling water flows along the heat exchange pipeline of the floor, the peripheral walls and the top plate, and the chilled water (cooling water) is utilized to perform radiation heat exchange on indoor air in a gradient mode by utilizing the characteristics of cold air sinking and hot air rising.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate a certain embodiment of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic diagram of an indoor surrounding type radiation air supply integrated air conditioning system based on air source and solar energy coupling.
In the figure: an air source heat pump unit (1), a first filter (2), a first circulating water pump (3), a second electromagnetic flow meter (4), a third manual regulating valve (5), a plate heat exchanger (6), a fourth manual regulating valve (7), an auxiliary electric heater (8), an axial flow fan (9), a radiation air supply integrated terminal (10), a shell (10a), an inducer (10b), an indoor air return opening (10c), a radiation pore plate (10d), a user side room (11), a solar heat collector (12), a first temperature sensor (13), a second circulating water pump (14), a first manual regulating valve (15), a second electromagnetic flow meter (16), a second temperature sensor (17), a four-way reversing valve (18), a surrounding type heat exchange coil (19), a sixth manual regulating valve (20), a second manual regulating valve (21) and a second filter (22), the temperature control valve comprises a water supplementing valve (23), a first check valve (24), a first electromagnetic valve (25), a second check valve (26), a second electromagnetic valve (27), a phase change energy storage device (28), a third temperature sensor (29), a third check valve (30), a third electromagnetic valve (31), a fourth check valve (32), a fourth electromagnetic valve (33), a fifth manual regulating valve (34), a third electromagnetic flowmeter (35), a first switch (36) and a second switch (37).
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The invention comprises an air source circuit, an air circuit and a solar circuit. The solar energy loop comprises a solar heat collector 12, a first temperature sensor 13, a second circulating water pump 14, a first manual regulating valve 15, a second electromagnetic flow meter 16, a second temperature sensor 17, a four-way reversing valve 18, a surrounding type heat exchange coil 19, a second manual regulating valve 21, a second filter 22, a water supplementing valve 23, a first check valve 24, a first electromagnetic valve 25, a second check valve 26, a second electromagnetic valve 27, a phase change energy storage device 28, a third temperature sensor 29, a first switch 36, an auxiliary electric heater 5, a second switch 37, an air source heat pump unit 1, a third check valve 30, a third electromagnetic valve 31, a fourth check valve 32 and a fourth electromagnetic valve 33. The output end of the solar thermal collector 12 is connected with the input end of the first temperature sensor 13, the first branch of the output end of the first temperature sensor 13 is connected with the input end of the second circulating water pump 14, the first branch of the output end of the second circulating water pump 14 is sequentially connected with the first manual regulating valve 15, the second electromagnetic flow meter 16 and the second temperature sensor 17, the solar thermal collector 12 flows into the solar thermal collector through the second filter 22 and the output end branch of the filter 22 is connected with the water replenishing valve 23 through the four-way reversing valve 18 and the connecting winding type heat exchange coil 19 and the four-way reversing valve 18 and the input end of the second manual regulating valve 21. The second branch of the output end of the first temperature sensor 13 is connected with the first check valve 24 and the first electromagnetic valve 25 in sequence, the output end of the first electromagnetic valve 25 is connected with the input end of the phase change energy storage device 28, the phase change energy storage device 28 is provided with the third temperature sensor 29, the first branch of the output end of the phase change energy storage device 28 is connected with the third check valve 30 and the third electromagnetic valve 31 in sequence, the second branch is connected with the fourth check valve 32 and the fourth electromagnetic valve 33 in sequence, and the output end of the third electromagnetic valve 31 and the output end of the fourth electromagnetic valve 33 are converged with the output end of the second manual regulating valve 21 and connected with the input end of the second filter 22.
The air loop comprises an axial flow fan 9, a plate type heat exchanger 6, a radiation air supply integrated tail end 10, a user side room 11 and a surrounding type heat exchange coil 19. The radiation air supply integrated tail end 10 comprises a shell 10a, an inducer 10b, an indoor air return opening 10c and a radiation hole plate 10 d. The inducer 10b is positioned at the center of the casing 10a, the radiation hole plate 10d is positioned inside the casing 10a and forms an indoor air return opening 10c with the casing, and the indoor air return opening 10c is communicated with the inducer 10 b.
The inlet end of an axial flow fan 9 is communicated with outdoor fresh air, the outlet end of the axial flow fan is connected with a plate type heat exchanger 6, air is sent to the radiation air supply integrated tail end 10, high-speed flow is conducted at the inducer 10b to generate negative pressure, indoor air flows into an indoor air return port 10c to be mixed with the fresh air, and the mixed air is sent to a room from a radiation hole plate 10d through a surrounding type heat exchange coil 19.
The air source loop comprises an air source heat pump unit 1, a first filter 2, a first circulating water pump 3, a second electromagnetic flow meter 4, a third manual regulating valve 5, a plate heat exchanger 6, a fourth manual regulating valve 7, an auxiliary electric heater 8, a fifth manual regulating valve 34, a third electromagnetic flow meter 35 and a sixth manual regulating valve 20. The output end of the air source heat pump unit 1 is sequentially connected with the first filter 2 and the first circulating water pump 3, the output end of the first circulating water pump 3 is connected with the input end of the second electromagnetic flowmeter 4, the output end of the second electromagnetic flowmeter 4 is connected with the input end of the plate heat exchanger 6 through the third manual regulating valve 5, the output end of the plate heat exchanger 6 is connected with the input end of the auxiliary electric heater 8 through the fourth manual regulating valve 7, the first branch of the output end of the auxiliary electric heater 8 is sequentially connected with the output end of the second temperature sensor 17 through the fifth manual regulating valve 34 and the third electromagnetic flowmeter 35, and the output end of the second temperature sensor 17 is converged and connected with the input end of the four-way reversing valve 18. The second branch of the output end of the four-way reversing valve 18 is connected with the input end of a sixth manual regulating valve 20, and the output end of the sixth manual regulating valve 20 is converged with the second branch of the output end of the auxiliary electric heater 8 and connected with the input end of the air source heat pump unit 1.
In the present invention, the cold and heat source device has two operation modes: the solar energy-assisted energy storage power supply mode comprises an air source single supply mode and a solar energy-assisted energy storage power supply mode, and a solar energy parallel air source combined supply mode. The air conditioner terminal equipment has two operation modes: an air-water mixed heat exchange mode and a cold-hot water independent heat exchange mode. When sunlight is sufficient in winter, a solar energy parallel air source combined supply mode is adopted: part of the high-temperature hot water flowing out of the solar thermal collector 12 sequentially flows through a first temperature sensor 13, a second circulating water pump 14, a first manual regulating valve 15, a second electromagnetic flow meter 16, a second temperature sensor 17, a four-way reversing valve 18, a surrounding type heat exchange coil 19, the four-way reversing valve 18, a second manual regulating valve 21, a second filter 22 and a water supplementing valve 23 to return to the solar thermal collector, and the other part of the high-temperature hot water flows through a first check valve 24, a first electromagnetic valve 25, a phase change energy storage device 28, a third check valve 30, a third electromagnetic valve 31, a second filter 22 and the water supplementing valve 23 to return to the solar thermal collector. High-temperature water generated by the air source heat pump unit 1 flows through the first filter 2, the first circulating water pump 3, the second electromagnetic flow meter 4, the third manual regulating valve 5, the plate heat exchanger 6, the fourth manual regulating valve 7 and the auxiliary electric heater 8 in sequence, one part of the medium-temperature water flows through the fifth manual regulating valve 34, the third electromagnetic flow meter 35, the four-way reversing valve 18, the surrounding type heat exchange coil 19, the four-way reversing valve 18 and the sixth manual regulating valve 20 and is converged with the other part of the medium-temperature water in a main pipeline to return to the air source heat pump unit 1, and the first switch 36 and the second switch 37 are closed. Otherwise, adopting an air source single supply and solar energy auxiliary energy storage power supply mode: the first manual adjustment valve 15, the second manual adjustment valve 21, the third check valve 30, the third electromagnetic valve 31, the first check valve 24, and the first electromagnetic valve 25 are closed. All hot water flowing out of the solar thermal collector 12 sequentially flows through the first temperature sensor 13, the second circulating water pump 14, the second check valve 26, the second electromagnetic valve 27, the phase change energy storage device 28, the fourth check valve 32, the fourth electromagnetic valve 33, the second filter 22 and the water supplementing valve 23 to return to the solar thermal collector, and the first switch 36 and the second switch 37 are opened to supply power to the air source heat pump unit 1 and the auxiliary electric heater 8 in an auxiliary mode. High-temperature water generated by the air source heat pump unit 1 flows through the first filter 2, the first circulating water pump 3, the second electromagnetic flow meter 4, the third manual regulating valve 5, the plate heat exchanger 6, the fourth manual regulating valve 7 and the auxiliary electric heater 8 in sequence, and part of the medium-temperature water flows through the fifth manual regulating valve 34, the third electromagnetic flow meter 35, the four-way reversing valve 18, the surrounding heat exchange coil 19, the four-way reversing valve 18 and the sixth manual regulating valve 20 and converges with the other part of the medium-temperature water in the main pipeline to return to the air source heat pump unit 1.
When the solar energy water heater operates in summer, an air source single-supply and solar energy auxiliary energy storage power supply mode is adopted: the first manual adjustment valve 15, the second manual adjustment valve 21, the third check valve 30, the third electromagnetic valve 31, the first check valve 24, the first electromagnetic valve 25, the auxiliary electric heater 8, and the second switch 37 are closed. All hot water flowing out of the solar heat collector 12 sequentially flows through the first temperature sensor 13, the second circulating water pump 14, the second check valve 26, the second electromagnetic valve 27, the phase change energy storage device 28, the fourth check valve 32, the fourth electromagnetic valve 33, the second filter 22 and the water replenishing valve 23 to return to the solar heat collector, and the first switch 36 is opened to supply power for the air source heat pump unit 1 in an auxiliary mode. The low-temperature water generated by the air source heat pump unit 1 flows through the first filter 2, the first circulating water pump 3, the second electromagnetic flow meter 4, the third manual regulating valve 5, the plate heat exchanger 6 and the fourth manual regulating valve 7 in sequence, one part of the low-temperature water flows through the fifth manual regulating valve 34, the third electromagnetic flow meter 35, the four-way reversing valve 18, the surrounding type heat exchange coil 19, the four-way reversing valve 18 and the sixth manual regulating valve 20, and converges with the other part of the low-temperature water in the main pipeline to return to the air source heat pump unit 1. When the system is just started or the indoor heat and humidity load is large, an air supply and surrounding type radiation mixed cooling and heating mode is adopted: the axial fan 9 is turned on at full power.
When the system runs stably or the indoor heat and humidity load is small, the surrounding radiation is adopted as a main body, and an auxiliary air supply, cold supply and heat supply mode is as follows: the power of the axial flow fan 9 is reduced or the machine is not started.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (3)
1. The utility model provides an integration air conditioning system based on air source and solar energy coupling which characterized in that: comprises an air source loop, an air loop and a solar loop;
the solar energy loop comprises a solar heat collector (12), a first temperature sensor (13), a second circulating water pump (14), a first manual regulating valve (15), a second electromagnetic flow meter (16), a second temperature sensor (17), a four-way reversing valve (18), a surrounding type heat exchange coil (19), a second manual regulating valve (21), a second filter (22), a water supplementing valve (23), a first check valve (24), a first electromagnetic valve (25), a second check valve (26), a second electromagnetic valve (27), a phase change energy storage device (28), a third temperature sensor (29), a first switch (36), an auxiliary electric heater (5), a second switch (37), a heat pump unit (1), a third check valve (30), a third electromagnetic valve (31), a fourth check valve (32) and a fourth electromagnetic valve (33);
the output end of the solar thermal collector (12) is connected with the input end of a first temperature sensor (13), a first branch of the output end of the first temperature sensor (13) is connected with the input end of a second circulating water pump (14), a first branch of the output end of the second circulating water pump (14) is sequentially connected with a first manual regulating valve (15), a second electromagnetic flow meter (16) and a second temperature sensor (17), the first branch of the output end of the four-way reversing valve is connected with the input end of a second manual regulating valve (21) through a connecting port of the four-way reversing valve (18) and a connecting ring-wound heat exchange coil (19)/the other connecting port of the four-way reversing valve (18), the first branch of the output end of the four-way reversing valve is connected with the input end of the second manual regulating valve (21), the first branch of the output end of the four-way;
a second branch of the output end of the first temperature sensor (13) is sequentially connected with a first check valve (24) and a first electromagnetic valve (25), the output end of the first electromagnetic valve (25) is connected with the input end of a phase change energy storage device (28), and the phase change energy storage device (28) is provided with a third temperature sensor (29); a first branch of an output end of the phase change energy storage device (28) is sequentially connected with a third check valve (30) and a third electromagnetic valve (31), a second branch of the phase change energy storage device (28) is sequentially connected with a fourth check valve (32) and a fourth electromagnetic valve (33), and an output end of the third electromagnetic valve (31) and an output end of the fourth electromagnetic valve (33) are converged with an output end of a second manual regulating valve (21) and connected with an input end of a second filter (22);
the air loop comprises an axial flow fan (9), a plate type heat exchanger (6), a radiation air supply integrated tail end (10), a user side room (11) and a surrounding type heat exchange coil (19); the radiation air supply integrated tail end (10) comprises a shell (10a), an inducer (10b), an indoor air return opening (10c) and a radiation hole plate (10 d); the inlet end of an axial flow fan (9) is communicated with outdoor fresh air, the outlet end of the axial flow fan is connected with a plate type heat exchanger (6), air is sent to a radiation air supply integrated tail end (10), the air flows at a high speed at an inducer (10b) to generate negative pressure, indoor air flows into an indoor air return port (10c) to be mixed with the fresh air, and the mixed air is sent to a user side room (11) from a radiation hole plate (10d) through a surrounding type heat exchange coil (19);
the air source loop comprises an air source heat pump unit (1), a first filter (2), a first circulating water pump (3), a second electromagnetic flow meter (4), a third manual regulating valve (5), a plate heat exchanger (6), a fourth manual regulating valve (7), an auxiliary electric heater (8), a fifth manual regulating valve (34), a third electromagnetic flow meter (35) and a sixth manual regulating valve (20); the output end of the air source heat pump unit (1) is sequentially connected with a first filter (2) and a first circulating water pump (3), the output end of the first circulating water pump (3) is connected with the input end of a second electromagnetic flowmeter (4), the output end of the second electromagnetic flowmeter (4) is connected with the input end of a plate heat exchanger (6) through a third manual regulating valve (5), the output end of the plate heat exchanger (6) is connected with the input end of an auxiliary electric heater (8) through a fourth manual regulating valve (7), and a first branch of the output end of the auxiliary electric heater (8) is sequentially converged with the output end of a second temperature sensor (17) through a fifth manual regulating valve (34) and a third electromagnetic flowmeter (35) and is connected with the input end of a four-way reversing valve (18); the second branch of the output end of the four-way reversing valve (18) is connected with the input end of a sixth manual regulating valve (20), and the output end of the sixth manual regulating valve (20) is converged with the second branch of the output end of the auxiliary electric heater (8) and connected with the input end of the air source heat pump unit (1).
2. The integrated air conditioning system based on air source and solar energy coupling of claim 1, wherein: when the solar energy-air source combined power supply system operates in winter, a solar energy-air source combined power supply mode is adopted when sunlight is sufficient, otherwise, an air source single-supply and solar energy-assisted energy storage power supply mode is adopted; when the solar energy water heater operates in summer, an air source single-supply and solar energy auxiliary energy storage power supply mode is adopted.
3. The integrated air conditioning system based on air source and solar energy coupling of claim 1, wherein: the air system and the water system jointly operate to supply cold and heat to the user side; when the system is just started or the indoor heat and humidity load is large, an air supply and surrounding type radiation mixed cooling and heating mode is adopted; when the system runs stably or the indoor heat and humidity load is small, the surrounding radiation is adopted as a main body to assist in an air supply, cold supply and heat supply mode.
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| CN111535437A (en) * | 2020-04-17 | 2020-08-14 | 苏州磐际建筑科技有限公司 | Low-energy-consumption phase-change building comfortable and healthy system |
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