CN104964373A - Air-conditioning system and control method thereof - Google Patents
Air-conditioning system and control method thereof Download PDFInfo
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- CN104964373A CN104964373A CN201510443228.2A CN201510443228A CN104964373A CN 104964373 A CN104964373 A CN 104964373A CN 201510443228 A CN201510443228 A CN 201510443228A CN 104964373 A CN104964373 A CN 104964373A
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- air
- conditioner set
- heat exchanger
- temperature value
- conditioning system
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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
- 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
- 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
Abstract
The invention provides an air-conditioning system and a control method thereof. The air-conditioning system is formed by a photoelectric power pack and an air-conditioning unit in a combined manner. The photoelectric power pack comprises a control unit, a photovoltaic assembly and a power grid. Specifically, the photovoltaic assembly and the power grid supply power for the air-conditioning unit in a complementary manner. The air-conditioning unit is formed by a compressor, a four-way valve, an outdoor heat exchanger, a first throttling gear, an indoor heat exchanger, and a heat collector which are connected. A three-way valve is arranged between the first throttling gear and the indoor heat exchanger. The heat collector is connected between the first throttling gear and the three-way valve. In the technical scheme, operation of the three-way valve and the four-way valve is controlled by external temperature, illumination, and other conditions, so that the air-conditioning unit can automatically switch among various operating modes of refrigeration, luminous energy heating, and conventional heating, and the photovoltaic assembly can also provide power for the air-conditioning unit in a method of complementation of the power grid. Thus, the air-conditioning system can fully use solar energy and thermal energy to realize an objective of reducing energy consumption.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of air-conditioning system and control method thereof.
Background technology
The whole world building heat supplying and domestic hot-water's energy consumption very large, the living standard that developed country is higher and habits and customs cause huge hot water demand and energy resource consumption, and developing country is then along with the development of urbanization and growth in the living standard can keep the rapid growth of energy consumption of hot water.But traditional heating system is mainly based on the mode of combustion of fossil fuel, not only efficiency is low but also seriously polluted, hot water supply system then mainly adopts gas heater and electric heater, there is the problem of energy grad waste, thus, heat supply and domestic hot-water more and more become energy-saving and emission-reduction, administer haze pay close attention to one of field.In recent years, solar water heater and air source hot pump water heater obtain larger development, but, when solar radiation is not enough, the heating effect of solar water heater or heating system will be had a greatly reduced quality, the a set of standby system of usual needs ensure rainy weather and solar radiation poor time reliability of heat-supply system, thus reduce its energy-saving effect.In addition, the cost of investment that solar thermal collector is higher and larger erection space require it is also the obstacle restricting its further large scale application.And for air source hot pump water heater or heating system, because its heating efficiency and heating capacity all constantly can be decayed with the reduction of outside air temperature, thus heat reliability under also just reducing its low temperature.Simultaneously, current air source heat pump can only utilize the heat energy in air, effectively cannot utilize solar radiant energy, and in fact although the many times temperature in winter is very low, but intensity of solar radiation is still enough to produce required hot water, however the photoelectric effect utilized and the air-conditioning system of photo-thermal effect also someone proposes so far.
Therefore, how proposing one can utilize technology to organically combine solar utilization technique and air heat energy, realize the mutual supplement with each other's advantages of these two kinds of regenerative resources, and the air-conditioning system that effectively can reduce the cost of investment of heating becomes current problem demanding prompt solution.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art or correlation technique.
Therefore, one object of the present invention there are provided one and heliotechnics and air heat energy technology can be organically combined, and realizes the mutual supplement with each other's advantages of these two kinds of regenerative resources, and effectively can reduce the air-conditioning system of the cost of investment of heating.
Therefore, another object of the present invention there are provided a kind of control method of air-conditioning system, for above-mentioned air-conditioning system.
In view of this, the embodiment of first aspect present invention provides a kind of air-conditioning system, comprising: photoelectricity is powered group, and described photoelectricity group of powering comprises control unit, photovoltaic module and electrical network, and wherein, described photovoltaic module and described electrical network are connected in parallel to described control unit; Air-conditioner set, be connected with described control unit, comprise interconnective compressor, cross valve, outdoor heat exchanger, first throttle device, indoor heat exchanger and heat collector, wherein, triple valve is provided with between described first throttle device and described indoor heat exchanger, one end of described heat collector is connected with described first throttle device, and the other end of described heat collector is connected to described triple valve; Wherein, described photovoltaic module and described electrical network are powered to described air-conditioner set in a complementary fashion by described control unit, to make described air-conditioner set work.
Air-conditioning system according to an embodiment of the invention, can the luminous energy of the sun be converted to electric energy by utilizing the photoelectric effect of photovoltaic module, thus the photovoltaic electrical energy drive air-conditioner set that this photovoltaic module can be utilized to produce runs, to reach air-conditioning system refrigeration, the object heated, simultaneously, this photovoltaic module can also in a complementary fashion for air-conditioner set be powered together with electrical network, that is, when the photovoltaic electric that photovoltaic module produces enough can meet the need for electricity of air-conditioner set, electrical network can be powered to air-conditioner set in time, to make up the deficiency of photovoltaic electric energy, thus improve air-conditioning system when intensity of illumination is not enough (as overcast and rainy) its heat the reliability of refrigeration, and then make, no matter be fine day or overcast and rainy, air-conditioning system can both reliably carry out freezing or heating.And when photovoltaic module produce the unnecessary air-conditioner set of photovoltaic electric energy needed for electric energy time, unnecessary photovoltaic electric energy can also flow into electrical network, and is stored in electrical network, thus when sunny, photovoltaic module can utilize solar electrical energy generation fully, to improve the utilization rate to solar energy.In addition, this air-conditioner set, the thermal source in air can also be utilized by heat collector, to realize the object heating room, that is in the heating operations of air-conditioner set, if the illumination in the external world is better, then air-conditioner set can utilize heat collector by the thermal energy collecting in air, and then this heat energy can be utilized to heat room, namely in this heating operations, the heat energy that air-conditioner set can utilize heat collector to collect heats for room, thus air-conditioner set loss to electric energy in this heating operations can be reduced, wherein, in the process, because illumination condition is better, thus photovoltaic module can also produce a large amount of photovoltaic electric energy, this photovoltaic electric energy part is used for powering to air-conditioner set, another part is then transferred into and is stored in electrical network, thus improve the utilization rate of air-conditioning system to solar energy.
Particularly, at fair weather such as summers, illumination condition is good, ambient temperature is higher, now house interior needs to carry out refrigeration cool-down, and thus, compressor, cross valve, outdoor heat exchanger, first throttle device, triple valve, indoor heat exchanger can form refrigeration cycle and can under the effect of photovoltaic module, luminous energy refrigeration is carried out to room, and then can continue to provide cold to room.And at rainy weathers such as summers, extraneous illumination condition is bad, but the temperature in the external world is still higher, therefore, house interior still needs to carry out refrigeration cool-down, now, the refrigeration cycle of compressor, cross valve, outdoor heat exchanger, first throttle device, triple valve, indoor heat exchanger composition then can under the effect of electrical network or under the acting in conjunction of photovoltaic module and electrical network, electric energy refrigeration or photoelectricity refrigeration are carried out to room, thus this air-conditioner set still can continue to provide cold in room.And when ambient temperature is lower, when illumination condition is good, as fine day in winter, house interior needs to carry out heating heating, thus compressor, cross valve, indoor heat exchanger, triple valve, the second throttling arrangement, heat collector, first throttle device, outdoor heat exchanger can form first and heat closed circuit, now, first heats closed circuit can produce heat continuously under the effect of photovoltaic module, heat collector, to make the temperature in room raise, thus the object heating room can be reached.On the contrary, if when ambient temperature is lower, and illumination condition bad time, as winter is overcast and rainy, now, the house interior needs that remain unchanged carry out heating heating, but heat collector but can not provide institute's calorific requirement for air-conditioner set, photovoltaic module can not produce abundant photovoltaic electrical energy drive air-conditioner set work, thus compressor, cross valve, indoor heat exchanger, triple valve, outdoor heat exchanger just can form second and heat closed circuit, and this second heats closed circuit and also can carry out electric energy routine under the independent role of electrical network and heat, thus also can produce heat continuously, to reach the object heating room.Thus this air-conditioning system, no matter be fine day or overcast and rainy, no matter be winter or summer can both reliably freeze to room or heat, thus improves the reliability of air-conditioning system.
Wherein, control unit is in refrigeration, in the cyclic process heated, the photovoltaic electric energy that can produce photovoltaic module and electrical network electric energy carry out management and control, particularly, when the photovoltaic electric energy that photovoltaic module produces is greater than electric energy needed for air-conditioner set, unnecessary photovoltaic electric energy can be proceeded to electrical network and be stored in electrical network by control unit, when the photovoltaic electric energy that photovoltaic module produces equals electric energy needed for air-conditioner set, air-conditioner set is zero energy consumption to electrical network electric energy, and when the photovoltaic electric energy that photovoltaic module produces is less than electric energy needed for air-conditioner set, electric energy needed for electrical network power compensation air-conditioner set, thus the intelligent power supply that can realize air-conditioner set.
In addition, what deserves to be explained is, luminous energy, heat energy and compacting air-conditioning system organically combine by this application, and structure is simple, with low cost, thus can improve the market competitiveness of air-conditioning system.
In addition, the air-conditioning system in above-described embodiment provided by the invention can also have following additional technical feature:
Particularly, described photoelectricity is powered to organize and is also comprised: the first AC/DC converting unit, one end of described first AC/DC converting unit is connected with described control unit, the other end of described first AC/DC converting unit separates two branch roads, first branch road is connected with described photovoltaic module, second branch road is connected with described electrical network, wherein, and the electric alternating current converted to needed for described air-conditioner set of photovoltaic DC that described first AC/DC converting unit produces for making described photovoltaic module; Second AC/DC converting unit, is arranged on described second branch road, and wherein, described second AC/DC converting unit converts alternating current to for the photovoltaic DC electricity making described photovoltaic module and produce and is stored in described electrical network.
Air-conditioning system according to an embodiment of the invention, the electric energy that photovoltaic module produces is direct current, and the electric energy required for air-conditioner set is the alternating current of 220V/380V, therefore, the direct current that photovoltaic module produces can be converted to the alternating current needed for air-conditioner set by the first AC/DC converting unit, normally work to enable air-conditioner set, and the second AC/DC converting unit is when the photovoltaic electric energy that photovoltaic module produces is greater than the electric energy needed for air-conditioner set, can also unnecessary photovoltaic electric energy be converted to can be stored in electrical network alternating current, and then can be stored in electrical network, thus the utilization rate of photovoltaic module to sunshine can be improved.
Particularly, described air-conditioner set also comprises: the second throttling arrangement, is arranged between described heat collector and described triple valve.
Air-conditioning system according to an embodiment of the invention, in a heating mode, the cold-producing medium of the HTHP after compressor is high temperature compressed becomes the liquid refrigerant of high pressure in indoor heat exchanger after condensation heat radiation, thus, the second throttling arrangement can be utilized its row reducing pressure by regulating flow, with the cold-producing medium of gas-liquid mixed making it become low temperature, low pressure, thus the cold-producing medium of this gas-liquid mixed absorbs more heat in circulation to just evaporating during heat collector, thus just can improve the heating efficiency of air-conditioner set.
Particularly, described air-conditioner set also comprises: detector, for the temperature value outside sensing chamber and illuminance value; Controller, is connected with described detector, described triple valve, described cross valve, controls the work of described triple valve, described cross valve for the described temperature value that detects according to described detector and described illuminance value.
Air-conditioning system according to an embodiment of the invention, detector comprises temperature sensor and optical sensor, wherein, temperature sensor is used for the temperature value outside sensing chamber, and this temperature value is sent to controller, optical sensor is used for the illuminance value outside sensing chamber, and this illuminance value is sent to controller, particularly, after controller receives the temperature value of temperature sensor transmission and the illuminance value of optical sensor transmission, temperature value and illuminance value and preset temperature value and default illuminance value can be compared, if the temperature value that temperature sensor detects is greater than the first preset temperature value, namely room needs refrigeration cool-down, now, controller can send control signal, make outlet and the outdoor heat exchanger conducting of cross valve, namely cold-producing medium carries out condensation heat radiation from compressor is out preferential afterwards through outdoor heat exchanger, so that the heat in cold-producing medium is dissipated, then indoor heat exchanger is entered through first throttle device, and heat absorption evaporation in indoor heat exchanger, and then Absorbable rod falls the heat in room, to reach the object in refrigeration room, after this, cold-producing medium indoor heat exchanger is got back in compressor, to complete a kind of refrigeration cycle.On the contrary, if temperature value is less than the second preset temperature value, namely room needs to heat heating, now, controller can send control signal, make outlet and the indoor heat exchanger conducting of cross valve, namely cold-producing medium from compressor out after preferentially carry out condensation heat radiation through indoor heat exchanger, thus can air in heat rooms, to reach the object heating room, then just through outdoor heat exchanger, and get back to compressor after outdoor heat exchanger carries out evaporation endothermic, heat circulation to complete one.Simultaneously, in the process heating circulation, air-conditioner set also can utilize heat collector to collect the heat energy in air, thus the heating efficiency of air-conditioner set can be improved, particularly, if the illuminance value that controller receives is more than or equal to default illuminance value, namely extraneous illumination condition is good, as fine day in winter, now, the outlet of triple valve and heat collector conducting, thus the cold-producing medium after indoor heat exchanger condensation heat radiation just fully can absorb the heat energy in air by heat collector, then in outdoor heat exchanger, again absorb the heat energy in air, thus this cold-producing medium again circulation just condensation can dissipate more heat to during indoor heat exchanger, and then the heating efficiency of air-conditioner set can be increased substantially, now, air-conditioner set is heat energy heating mode.On the contrary, if the illuminance value that controller receives is less than default illuminance value, namely extraneous illumination condition is poor, as winter is overcast and rainy, now, the outlet of triple valve directly with the conducting of first throttle device, the cold-producing medium thus after indoor heat exchanger condensation is dispelled the heat directly cycles back to compressor through outdoor heat exchanger, now, air-conditioner set is conventional heating mode (i.e. compression heating mode).As from the foregoing, the heating mode of air-conditioner set and refrigeration mode are that the conduction position of outlet and entrance by changing cross valve realizes, the heat energy heating mode of air-conditioner set and conventional heating mode are then that the conduction position of outlet and entrance by changing triple valve realizes, and this kind of control mode is simple, quick, accurate, thus the probability broken down when air-conditioning system switches between multiple mode of operation can be reduced.
What deserves to be explained is, the first preset temperature value is greater than the second preset temperature value, and the temperature of the first preset temperature value is higher, and generally at about 30 °, and the second preset temperature value is lower general at about 10 °.Meanwhile, if when the temperature value that temperature sensor detects is less than or equal to the first preset temperature value but is more than or equal to the second preset temperature value, such as spring, autumn, then air-conditioner set does not run.
In addition, user also can need sets itself first preset temperature value and the second preset temperature value, so that meet the demand between different user according to oneself.
Preferably, described first throttle device, described second throttling arrangement are capillary or electric expansion valve or heating power expansion valve.
Air-conditioning system according to an embodiment of the invention, throttling arrangement can be capillary, electric expansion valve or heating power expansion valve etc.
Preferably, described outdoor heat exchanger is air cooling heat exchanger or water cooling heat exchanger, and described heat collector is direct-expansion type solar energy heat collector.
Air-conditioning system according to an embodiment of the invention, outdoor heat exchanger is disposed in the outdoor, in cooling mode, its Main Function is dissipated the heat condensation in cold-producing medium, and in a heating mode, its Main Function is by the evaporation of cold-producing medium to absorb the heat in air, and about the concrete heat exchange mode of outdoor heat exchanger, namely it can be air-cooled heat exchange, also can be water-cooled heat exchange.
Preferably, described outdoor heat exchanger is provided with the first blower fan, described indoor heat exchanger is provided with the second blower fan.
Air-conditioning system according to an embodiment of the invention, first blower fan can accelerate condensation radiating efficiency or the evaporation endothermic efficiency of outdoor heat exchanger, thus refrigeration, the heating efficiency of air-conditioner set can be improved, simultaneously, second blower fan also can accelerate evaporation endothermic efficiency or the condensation radiating efficiency of indoor heat exchanger, thus can improve refrigeration, the heating efficiency of air-conditioner set further.
The embodiment of second aspect present invention proposes a kind of control method of air-conditioning system, for the air-conditioning system that any one of first aspect embodiment provides, comprise: detecting step, utilize the temperature value outside detector sensing chamber and illuminance value, and described temperature value, described illuminance value are sent as electronic signals; Rate-determining steps, controller is utilized to receive the described signal of telecommunication, and the described temperature value represented by the described signal of telecommunication, described illuminance value obtain comparison result with preset temperature value, default illuminance value comparison, and according to described comparing result, control the work of described triple valve, described cross valve respectively.
Particularly, in described rate-determining steps, when the described temperature value that described detector detects is greater than the first preset temperature value, described cross valve, described triple valve are in the first duty, described compressor, described cross valve, described outdoor heat exchanger, described first throttle device, described triple valve, described indoor heat exchanger composition refrigeration cycle, to make described air-conditioner set running refrigerating pattern; The described temperature value detected when described detector is less than described second preset temperature value, and the described illuminance value that described detector detects is when being more than or equal to described default illuminance value, described cross valve is in the second duty, described triple valve is in the second duty, described compressor, described cross valve, described indoor heat exchanger, described triple valve, described second throttling arrangement, described heat collector, described first throttle device, described outdoor heat exchanger composition first heat closed circuit, run heat energy heating mode to make described air-conditioner set; The described temperature value detected when described detector is less than described second preset temperature value, and the described illuminance value that described detector detects is when being less than described default illuminance value, described cross valve is in the second duty, described triple valve is in the first duty, described compressor, described cross valve, described indoor heat exchanger, described triple valve, described first throttle device, described outdoor heat exchanger composition second heat closed circuit, run conventional heating mode to make described air-conditioner set; Wherein, described first preset temperature value is greater than described second preset temperature value, and when described temperature value be more than or equal to described second preset temperature value be less than described first preset temperature value time, described air-conditioner set stops to work.
Preferably, in described rate-determining steps, when the photovoltaic electric energy that described photovoltaic module produces is more than or equal to electric energy needed for described air-conditioner set, described air-conditioner set is powered separately by described photovoltaic module, runs luminous energy refrigeration mode or luminous energy, heat energy heating mode to make described air-conditioner set; When the described photovoltaic electric energy of the generation of described photovoltaic module is less than electric energy needed for described air-conditioner set, described air-conditioner set is powered by described photovoltaic module, described power grid joint, runs luminous energy, electric energy refrigeration mode or luminous energy, electric energy, heat energy heating mode to make described air-conditioner set; When the described photovoltaic electric energy of the generation of described photovoltaic module is zero, described air-conditioner set is powered separately by described electrical network, runs electric energy refrigeration mode or the conventional heating mode of electric energy to make described air-conditioner set; Wherein, when the photovoltaic electric energy of the generation of described photovoltaic module is greater than electric energy needed for described air-conditioner set, unnecessary described photovoltaic electric energy also stores up into described electrical network by described second AC/DC converting unit.
The control method of the air-conditioning system that second aspect present invention embodiment provides, by to cross valve, the control of triple valve can realize air-conditioner set at refrigeration mode, heat energy heating mode, intelligence between conventional heating mode switches, particularly, when cross valve is in the first duty, when triple valve is in the first duty, air-conditioner set running refrigerating pattern, namely cross valve makes compressor and outdoor heat exchanger conducting, triple valve makes first throttle device directly and indoor heat exchanger conducting, now outdoor heat exchanger is condenser, indoor heat exchanger is evaporimeter, thus the heat in room can be dispersed into outdoor by the condensation heat radiation of outdoor heat exchanger by this air-conditioner set, by the evaporation endothermic of indoor heat exchanger, the heat in room is taken away simultaneously, to reach the object in refrigeration room.And when needing air-conditioner set to be switched to heat energy heating mode or conventional heating mode from refrigeration mode, only need by cross valve, the second duty is switched to from the first duty, now, the outlet of compressor directly and indoor heat exchanger conducting, the entrance of compressor and outdoor heat exchanger conducting, namely now, indoor heat exchanger is condenser, outdoor heat exchanger is evaporimeter, thus the heat condensation in cold-producing medium can be dispersed in room by indoor heat exchanger, thus the object that air-conditioner set heats can be realized, now, if triple valve is in the second duty, namely indoor heat exchanger is by heat collector and the conducting of first throttle device, then air-conditioner set runs heat energy heating mode, on the contrary, if triple valve is in the first duty, namely indoor heat exchanger directly and the conducting of first throttle device, now, air-conditioner set runs conventional heating mode, therefore, the air-conditioning system of this embodiment can utilize cross valve, triple valve controls air-conditioner set, thus make air-conditioner set can exactly at refrigeration mode, heat energy heating mode, switch back and forth between conventional heating mode, thus make this air-conditioner set can along with the environment in the external world, automatically its mode of operation is adjusted, with the demand making it more meet current environment, thus the refrigeration in room is being met, while heating needs, the solar energy in air can be maximally utilised, heat energy, and then just can reduce the energy consumption of air-conditioner set to greatest extent.
Particularly, this air-conditioning system comprises multiple-working mode, specific as follows:
At fair weather such as summers, ambient temperature higher (generally all higher than the first preset temperature value), illumination condition is good, now house interior needs to carry out refrigeration cool-down, the photovoltaic electric energy that photovoltaic module produces can meet the need for electricity of air-conditioner set completely, therefore, air-conditioning system, under the two ore control of controller and control unit, runs luminous energy refrigeration mode.
At rainy weathers such as summers, ambient temperature higher (generally all higher than the first preset temperature value), but illumination condition is poor, now house interior still needs to carry out refrigeration cool-down, but the photovoltaic electric that photovoltaic module produces enough can meet the need for electricity of air-conditioner set, therefore, photoelectricity Power Supply Assembly under the control of the control unit, photovoltaic module and electrical network are powered to air-conditioner set in a complementary fashion, air-conditioner set then running refrigerating pattern under the control of the controller, therefore, air-conditioning system just can under the two ore control of controller and control unit, run luminous energy, electric energy refrigeration mode.
In addition, on one point illumination all do not have or illumination is extremely low when, as summer evenings, now house interior still needs to carry out refrigeration cool-down, but the photovoltaic electric energy that photovoltaic module produces is zero, therefore, photoelectricity Power Supply Assembly under the control of the control unit, utilizes electrical network to power to air-conditioner set separately, air-conditioner set then running refrigerating pattern under the control of the controller, therefore, air-conditioning system just under the two ore control of controller and control unit, can run electric energy refrigeration mode.
And fine day in the winter time, when ambient temperature lower (generally all lower than the second preset temperature value), when illumination condition is good, house interior needs to carry out heating heating, thus compressor, cross valve, indoor heat exchanger, triple valve, second throttling arrangement, heat collector, first throttle device, outdoor heat exchanger can form first and heat closed circuit, now, first heats closed circuit can produce heat continuously under the effect of photovoltaic module, raise to make the temperature in room, to reach the object heating room, particularly, if the photovoltaic electric energy that photovoltaic module produces can meet the need for electricity of air-conditioner set, then air-conditioning system is under the two ore control of controller and control unit, run luminous energy, heat energy heating mode.
On the contrary, fine day in the winter time, if the photovoltaic electric that photovoltaic module produces enough can meet the need for electricity of air-conditioner set, then photoelectricity Power Supply Assembly under the control of the control unit, photovoltaic module and electrical network are powered to air-conditioner set in a complementary fashion, and air-conditioner set then runs heat energy heating mode under the control of the controller, therefore, air-conditioning system just under the two ore control of controller and control unit, can run luminous energy, electric energy, heat energy heating mode.
And it is overcast and rainy in the winter time, ambient temperature lower (generally all lower than the second preset temperature value), illumination condition is also poor, now, the house interior needs that remain unchanged heat heating, but heat collector but can not provide institute's calorific requirement for air-conditioner set, the photovoltaic electric energy that photovoltaic module produces also levels off to zero, thus compressor, cross valve, indoor heat exchanger, triple valve, second refrigeration cycle of outdoor heat exchanger composition just can run electric energy heating mode under the two ore control of controller and control unit, that is, now photoelectricity Power Supply Assembly under the control of the control unit, electrical network is utilized to power to air-conditioner set separately, air-conditioner set then runs conventional heating mode under the control of the controller, therefore, air-conditioning system is under the two ore control of controller and control unit, also heat can be produced continuously, to meet the heating needs in room.
In addition, in seasons such as spring and autumn, extraneous environment temperature is more moderate, general between the first preset temperature value and the second preset temperature value, thus now, do not need air-conditioning system freeze to room or heat, thus air-conditioner set can quit work, to reach the object of saving energy consumption.
Additional aspect of the present invention and advantage become obvious by description part below, or are recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of air-conditioning system described in one embodiment of the present of invention;
Fig. 2 is the refrigeration mode schematic diagram of the air-conditioning system provided according to Fig. 1;
Fig. 3 is the heating mode schematic diagram of the air-conditioning system provided according to Fig. 1;
Fig. 4 is the conventional heating mode schematic diagram of the air-conditioning system provided according to Fig. 1;
Fig. 5 is the flow chart of the control method of air-conditioning system described in one embodiment of the present of invention.
Wherein, the Reference numeral in Fig. 1 to Fig. 4 and the corresponding relation between component names are:
1 air-conditioner set, 11 compressors, 12 cross valves, 13 outdoor heat exchangers, 131 first blower fans, 14 first throttle devices, 15 indoor heat exchangers, 151 second blower fans, 16 heat collectors, 17 triple valves, 18 second throttling arrangements, 2 photoelectricity are powered group, 21 control units, 22 photovoltaic modulies, 23 electrical networks, 24 first AC/DC converting units, 25 second AC/DC converting units.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
Referring to Fig. 1 to Fig. 5, air-conditioning system described according to some embodiments of the invention and control method thereof are described.
As shown in Figures 1 to 4, the embodiment of first aspect present invention provides a kind of air-conditioning system, comprising: photoelectricity is powered group 2, and photoelectricity group 2 of powering comprises control unit 21, photovoltaic module 22 and electrical network 23, wherein, photovoltaic module 22 and electrical network 23 are connected in parallel to control unit 21; Air-conditioner set 1, be connected with control unit 21, comprise interconnective compressor 11, cross valve 12, outdoor heat exchanger 13, first throttle device 14, indoor heat exchanger 15, heat collector 16 and the second throttling arrangement 18, wherein, triple valve 17 is provided with between first throttle device 14 and indoor heat exchanger 15, one end of heat collector 16 is connected with first throttle device 14, and the other end of heat collector 16 is connected to triple valve 17; Wherein, photovoltaic module 22 and electrical network 23 are powered to air-conditioner set 1 in a complementary fashion by control unit 21, work to make air-conditioner set 1.
Air-conditioning system according to an embodiment of the invention, can the luminous energy of the sun be converted to electric energy by utilizing the photoelectric effect of photovoltaic module 22, thus the photovoltaic electrical energy drive air-conditioner set 1 that this photovoltaic module 22 can be utilized to produce runs, to reach air-conditioning system refrigeration, the object heated, simultaneously, this photovoltaic module 22 can also be powered for air-conditioner set 1 in a complementary fashion together with electrical network 23, that is, when the photovoltaic electric that photovoltaic module 22 produces enough can meet the need for electricity of air-conditioner set 1, electrical network 23 can be powered to air-conditioner set 1 in time, to make up the deficiency of photovoltaic electric energy, thus improve air-conditioning system when intensity of illumination is not enough (as overcast and rainy) its heat the reliability of refrigeration, and then make, no matter be fine day or overcast and rainy, air-conditioning system can both reliably carry out freezing or heating.And when photovoltaic module 22 produce the unnecessary air-conditioner set 1 of photovoltaic electric energy needed for electric energy time, unnecessary photovoltaic electric energy can also flow into electrical network 23, and is stored in electrical network 23, thus when sunny, photovoltaic module 22 can utilize solar electrical energy generation fully, to improve the utilization rate to solar energy.In addition, this air-conditioner set 1, the thermal source in air can also be utilized by heat collector 16, to realize the object heating room, that is in the heating operations of air-conditioner set 1, if the illumination in the external world is better, then air-conditioner set 1 can utilize heat collector 16 by the thermal energy collecting in air, and then this heat energy can be utilized to heat room, namely in this heating operations, the heat energy that air-conditioner set 1 can utilize heat collector 16 to collect heats room, thus air-conditioner set 1 loss to electric energy in this heating operations can be reduced, wherein, in the process, because illumination condition is better, thus photovoltaic module 22 can also produce a large amount of photovoltaic electric energy, this photovoltaic electric energy part is used for powering to air-conditioner set 1, another part is then transferred into and is stored in electrical network 23, thus improve the utilization rate of air-conditioning system to solar energy.
Particularly, at fair weather such as summers, illumination condition is good, ambient temperature is higher, and now house interior needs to carry out refrigeration cool-down, thus, as shown in Figure 2, compressor 11, cross valve 12, outdoor heat exchanger 13, first throttle device 14, triple valve 17, indoor heat exchanger 15 can form refrigeration cycle and under the effect of photovoltaic module 22, can carry out luminous energy refrigeration to room, and then can continue to provide cold to room.And at rainy weathers such as summers, extraneous illumination condition is bad, but the temperature in the external world is still higher, therefore, house interior still needs to carry out refrigeration cool-down, now, the refrigeration cycle of compressor 11, cross valve 12, outdoor heat exchanger 13, first throttle device 14, triple valve 17, indoor heat exchanger 15 composition then can under the effect of electrical network 23 or under the acting in conjunction of photovoltaic module 22 and electrical network 23, electric energy refrigeration or photoelectricity refrigeration are carried out to room, thus this air-conditioner set 1 still can continue to provide cold in room.And when ambient temperature is lower, when illumination condition is good, as fine day in winter, house interior needs to carry out heating heating, thus, as shown in Figure 3, compressor 11, cross valve 12, indoor heat exchanger 15, triple valve 17, second throttling arrangement 18, heat collector 16, first throttle device 14, outdoor heat exchanger 13 can form first and heat closed circuit, now, first heats closed circuit can produce heat continuously under the effect of photovoltaic module 22, heat collector 16, to make the temperature in room raise, thus the object heating room can be reached.On the contrary, if when ambient temperature is lower, and illumination condition bad time, as winter is overcast and rainy, now, the house interior needs that remain unchanged carry out heating heating, but heat collector 16 but can not provide institute's calorific requirement for air-conditioner set 1, photovoltaic module 22 can not produce abundant photovoltaic electrical energy drive air-conditioner set 1 and work, thus, as shown in Figure 4, compressor 11, cross valve 12, indoor heat exchanger 15, triple valve 17, outdoor heat exchanger 13 just can form the second refrigeration cycle, and this second heats closed circuit and also can carry out electric energy routine under the independent role of electrical network 23 and heat, thus also can produce heat continuously, to reach the object heating room.Thus this air-conditioning system, no matter be fine day or overcast and rainy, no matter be winter or summer can both reliably freeze to room or heat, thus improves the reliability of air-conditioning system.
Wherein, control unit 21 is heating, in the cyclic process of refrigeration, the photovoltaic electric energy that can produce photovoltaic module 22 and electrical network 23 electric energy carry out management and control, particularly, when the photovoltaic electric energy that photovoltaic module 22 produces is greater than electric energy needed for air-conditioner set 1, unnecessary photovoltaic electric energy can be proceeded to electrical network 23 and be stored in electrical network 23 by control unit 21, when the photovoltaic electric energy that photovoltaic module 22 produces equals electric energy needed for air-conditioner set 1, air-conditioner set 1 pair of electrical network 23 electric energy is zero energy consumption, and when the photovoltaic electric energy that photovoltaic module 22 produces is less than electric energy needed for air-conditioner set 1, electric energy needed for electrical network 23 power compensation air-conditioner set 1, thus the intelligent power supply that can realize air-conditioner set 1.
Particularly, photovoltaic module comprises at least one light energy battery plate.
Wherein, the arrow in Fig. 1 to Fig. 4 represents sense of current or represents the flow direction of cold-producing medium; AC in Fig. 1 to Fig. 4 represents alternating current, and DC represents direct current.
In addition, what deserves to be explained is, luminous energy, heat energy and compacting air-conditioning system organically combine by this application, and structure is simple, with low cost, thus can improve the market competitiveness of air-conditioning system.
Particularly, as shown in Figures 1 to 4, photoelectricity group 2 of powering also comprises: the first AC/DC dress changes unit 24, one end that first AC/DC dress changes unit 24 is connected with control unit 21, the other end that first AC/DC dress changes unit 24 separates two branch roads, and the first branch road is connected with photovoltaic module 22, and the second branch road is connected with electrical network 23, wherein, the first AC/DC dress changes the electric alternating current converted to needed for air-conditioner set 1 of photovoltaic DC that unit 24 produces for making photovoltaic module 22; Second AC/DC dress changes unit 25, is arranged on the second branch road, and wherein, the second AC/DC dress changes unit 25 and converts alternating current to for the photovoltaic DC electricity making photovoltaic module 22 and produce and be stored in electrical network 23.
Air-conditioning system according to an embodiment of the invention, the electric energy that photovoltaic module 22 produces is direct current, and the electric energy required for air-conditioner set 1 is the alternating current of 220V/380V, therefore, first AC/DC dress changes unit 24 and the direct current that photovoltaic module 22 produces can be converted to alternating current needed for air-conditioner set 1, can normally work to make air-conditioner set 1, and the second AC/DC dress changes unit 25 when the photovoltaic electric energy that photovoltaic module 22 produces is greater than the electric energy needed for air-conditioner set 1, can unnecessary photovoltaic electric energy be converted to can be stored in electrical network 23 alternating current, and then can be stored in electrical network 23, thus the utilization rate of photovoltaic module 22 pairs of sunshines can be improved.
Particularly, air-conditioner set also comprises: the second throttling arrangement 18, is arranged between heat collector 16 and triple valve 17.
Air-conditioning system according to an embodiment of the invention, in a heating mode, the cold-producing medium of the HTHP after compressor 11 is high temperature compressed becomes the liquid refrigerant of high pressure in indoor heat exchanger 15 after condensation heat radiation, thus, the second throttling arrangement 18 can be utilized to carry out reducing pressure by regulating flow to it, with the cold-producing medium of gas-liquid mixed making it become low temperature, low pressure, thus the cold-producing medium of this gas-liquid mixed absorbs more heat in circulation to just evaporating during heat collector 16, thus just can improve the heating efficiency of air-conditioner set 1.
Particularly, air-conditioner set 1 also comprises: detector (not shown), for the temperature value outside sensing chamber and illuminance value; Controller, is connected with detector, triple valve 17, cross valve 12, controls the work of triple valve 17, cross valve 12 for the temperature value that detects according to detector and illuminance value.
Air-conditioning system according to an embodiment of the invention, detector comprises temperature sensor and optical sensor, wherein, temperature sensor is used for the temperature value outside sensing chamber, and this temperature value is sent to controller, optical sensor is used for the illuminance value outside sensing chamber, and this illuminance value is sent to controller, particularly, after controller receives the temperature value of temperature sensor transmission and the illuminance value of optical sensor transmission, temperature value and illuminance value and preset temperature value and default illuminance value can be compared, if the temperature value that temperature sensor detects is greater than the first preset temperature value, namely room needs refrigeration cool-down, now, controller can send control signal, make outlet and outdoor heat exchanger 13 conducting of cross valve 12, namely cold-producing medium carries out condensation heat radiation from compressor 11 is out preferential afterwards through outdoor heat exchanger 13, so that the heat in cold-producing medium is dissipated, then just indoor heat exchanger 15 is entered through first throttle device 14, and heat absorption evaporation in indoor heat exchanger 15, and then Absorbable rod falls the heat in room, to reach the object in refrigeration room, after this, cold-producing medium indoor heat exchanger 15 is got back in compressor 11, to complete a kind of refrigeration cycle.On the contrary, if temperature value is less than the second preset temperature value, namely room needs to heat heating, now, controller can send control signal, make outlet and indoor heat exchanger 15 conducting of cross valve 12, namely cold-producing medium carries out condensation heat radiation from compressor 11 is out preferential afterwards through indoor heat exchanger 15, thus can air in heat rooms, to reach the object heating room, then just through outdoor heat exchanger 13, and get back to compressor 11 after outdoor heat exchanger 13 carries out evaporation endothermic, heat circulation to complete one.Simultaneously, in the process heating circulation, air-conditioner set 1 also can utilize heat collector 16 to collect the heat energy in air, thus the heating efficiency of air-conditioner set 1 can be improved, particularly, if the illuminance value that controller receives is more than or equal to default illuminance value, namely extraneous illumination condition is good, as fine day in winter, now, the outlet of triple valve 17 and heat collector 16 conducting, thus the cold-producing medium after indoor heat exchanger 15 condensation heat radiation just fully can absorb the heat energy in air by heat collector 16, then in outdoor heat exchanger 13, again absorb the heat energy in air, thus this cold-producing medium again circulation just condensation can dissipate more heat to during indoor heat exchanger 15, and then the heating efficiency of air-conditioner set 1 can be increased substantially, now, air-conditioner set 1 is heat energy heating mode (i.e. compression heating mode).On the contrary, if the illuminance value that controller receives is less than default illuminance value, namely extraneous illumination condition is poor, as winter is overcast and rainy, now, the outlet of triple valve 17 directly with first throttle device 14 conducting, the cold-producing medium thus after indoor heat exchanger 15 condensation is dispelled the heat directly cycles back to compressor 11 through outdoor heat exchanger 13, now, air-conditioner set 1 is conventional heating mode.As from the foregoing, the heating mode of air-conditioner set 1 and refrigeration mode are that the conduction position of outlet and entrance by changing cross valve 12 realizes, the heat energy heating mode of air-conditioner set 1 and conventional heating mode are then that the conduction position of outlet and entrance by changing triple valve 17 realizes, and this kind of control mode is simple, quick, accurate, thus the probability broken down when air-conditioning system switches between multiple mode of operation can be reduced.
What deserves to be explained is, the first preset temperature value is greater than the second preset temperature value, and the temperature of the first preset temperature value is higher, and generally at about 30 °, and the second preset temperature value is lower general at about 10 °.Meanwhile, if the temperature value that temperature sensor detects is less than or equal to the first preset temperature value but be more than or equal to the second preset temperature value, such as spring, autumn, then air-conditioner set does not run.
In addition, user also can according to oneself need sets itself first preset temperature value and the second preset temperature value time so that meet the demand between different user.
Preferably, first throttle device 14, second throttling arrangement 18 is capillary or electric expansion valve or heating power expansion valve.
Preferably, outdoor heat exchanger 13 is air cooling heat exchanger or water cooling heat exchanger, and heat collector 16 is direct-expansion type solar energy heat collector 16.
Air-conditioning system according to an embodiment of the invention, outdoor heat exchanger 13 is disposed in the outdoor, in cooling mode, its Main Function is dissipated the heat condensation in cold-producing medium, and in a heating mode, its Main Function is by the evaporation of cold-producing medium to absorb the heat in air, and about the concrete heat exchange mode of outdoor heat exchanger 13, namely it can be air-cooled heat exchange, also can be water-cooled heat exchange.
Preferably, as shown in Figures 1 to 4, outdoor heat exchanger 13 is provided with the first blower fan 131, indoor heat exchanger 15 is provided with the second blower fan 151.
Air-conditioning system according to an embodiment of the invention, first blower fan 131 can accelerate condensation radiating efficiency or the evaporation endothermic efficiency of outdoor heat exchanger 13, thus refrigeration, the heating efficiency of air-conditioner set 1 can be improved, simultaneously, second blower fan 151 also can accelerate evaporation endothermic efficiency or the condensation radiating efficiency of indoor heat exchanger 15, thus can improve refrigeration, the heating efficiency of air-conditioner set 1 further.
The embodiment of second aspect present invention proposes a kind of control method of air-conditioning system, for the air-conditioning system that any one of first aspect embodiment provides, as shown in Figure 5, comprise: 502 detecting steps, utilize the temperature value outside detector sensing chamber and illuminance value, and temperature value, illuminance value are sent as electronic signals; 504 rate-determining steps, utilize controller to receive the signal of telecommunication, and the temperature value represented by the signal of telecommunication, illuminance value obtain comparison result with preset temperature value, default illuminance value comparison respectively, and according to comparing result, control the work of triple valve 17, cross valve 12.
Particularly, in rate-determining steps, when the temperature value that detector detects is greater than the first preset temperature value, cross valve 12, triple valve 17 are in the first duty, compressor 11, cross valve 12, outdoor heat exchanger 13, first throttle device 14, triple valve 17, indoor heat exchanger 15 form refrigeration cycle, to make air-conditioner set 1 running refrigerating pattern; The temperature value detected when detector is less than the second preset temperature value, and the illuminance value that detector detects is when being more than or equal to default illuminance value, cross valve 12 is in the second duty, triple valve 17 is in the second duty, compressor 11, cross valve 12, indoor heat exchanger 15, triple valve 17, second throttling arrangement 18, heat collector 16, first throttle device 14, outdoor heat exchanger 13 form first and heat closed circuit, run heat energy heating mode to make air-conditioner set 1; The temperature value detected when detector is less than the second preset temperature value, and the illuminance value that detector detects is when being less than default illuminance value, cross valve 12 is in the second duty, triple valve 17 is in the first duty, compressor 11, cross valve 12, indoor heat exchanger 15, triple valve 17, first throttle device 14, outdoor heat exchanger 13 form second and heat closed circuit, run conventional heating mode to make air-conditioner set 1; Wherein, the first preset temperature value is greater than the second preset temperature value, and when described temperature value be more than or equal to the second preset temperature value be less than or equal to described first preset temperature value time, described air-conditioner set stops to work.
Preferably, in rate-determining steps, when the photovoltaic electric energy that photovoltaic module 22 produces is more than or equal to electric energy needed for air-conditioner set 1, air-conditioner set 1 is powered separately by photovoltaic module 22, runs luminous energy refrigeration mode or luminous energy, heat energy heating mode to make air-conditioner set 1; When the photovoltaic electric energy of the generation of photovoltaic module 22 is less than electric energy needed for air-conditioner set 1, air-conditioner set 1 combines power supply by photovoltaic module 22, electrical network 23, runs luminous energy, electric energy refrigeration mode or luminous energy, electric energy, heat energy heating mode to make air-conditioner set 1; When the photovoltaic electric energy of the generation of photovoltaic module 22 is zero, air-conditioner set 1 is powered separately by electrical network 23, runs electric energy refrigeration mode or the conventional heating mode of electric energy to make air-conditioner set 1; Wherein, when the photovoltaic electric energy of the generation of photovoltaic module 22 is greater than electric energy needed for air-conditioner set 1, unnecessary photovoltaic electric energy also changes unit 25 by the second AC/DC dress and stores up into electrical network 23.
The control method of the air-conditioning system that second aspect present invention embodiment provides, by to cross valve 12, the control of triple valve 17 can realize air-conditioner set 1 at refrigeration mode, heat energy heating mode, intelligence between conventional heating mode switches, particularly, when cross valve 12 is in the first duty, when triple valve 17 is in the first duty, air-conditioner set 1 running refrigerating pattern, namely cross valve 12 makes compressor 11 and outdoor heat exchanger 13 conducting, triple valve 17 makes first throttle device 14 directly and indoor heat exchanger 15 conducting, now outdoor heat exchanger 13 is condenser, indoor heat exchanger 15 is evaporimeter, thus the heat in room can be dispersed into outdoor by the condensation heat radiation of outdoor heat exchanger 13 by this air-conditioner set 1, by the evaporation endothermic of indoor heat exchanger 15, the heat in room is taken away simultaneously, to reach the object in refrigeration room.And when needing air-conditioner set 1 to be switched to heating mode or conventional heating mode from refrigeration mode, only need by cross valve 12, the second duty is switched to from the first duty, now, the outlet of compressor 11 directly and indoor heat exchanger 15 conducting, the entrance of compressor 11 and outdoor heat exchanger 13 conducting, namely now, indoor heat exchanger 15 is condenser, outdoor heat exchanger 13 is evaporimeter, thus the heat condensation in cold-producing medium can reject heat in room by indoor heat exchanger 15, thus the object that air-conditioner set 1 heats can be realized, now, if triple valve 17 is in the second duty, namely indoor heat exchanger 15 is by heat collector 16 and first throttle device 14 conducting, then air-conditioner set 1 runs heat energy heating mode, on the contrary, if triple valve 17 is in the first duty, namely indoor heat exchanger 15 directly and first throttle device 14 conducting, now, air-conditioner set 1 runs conventional heating mode, therefore, the air-conditioning system of this embodiment can utilize cross valve 12, triple valve 17 pairs of air-conditioner set 1 control, thus make air-conditioner set 1 can exactly at refrigeration mode, heat energy heating mode, switch back and forth between conventional heating mode, thus make this air-conditioner set 1 can along with the environment in the external world, automatically its mode of operation is adjusted, with the demand making it more meet current environment, thus the refrigeration in room is being met, while heating needs, the solar energy in air can be maximally utilised, heat energy, and then just can reduce the energy consumption of air-conditioner set 1 to greatest extent.
Particularly, this air-conditioning system comprises multiple-working mode, specific as follows:
At fair weather such as summers, ambient temperature higher (generally all higher than the first preset temperature value), illumination condition is good, now house interior needs to carry out refrigeration cool-down, the photovoltaic electric energy that photovoltaic module 22 produces can meet the need for electricity of air-conditioner set 1 completely, therefore, air-conditioning system, under the two ore control of controller and control unit 21, runs luminous energy refrigeration mode.
At rainy weathers such as summers, ambient temperature higher (generally also higher than the first preset temperature value), but illumination condition is poor, now house interior still needs to carry out refrigeration cool-down, but the photovoltaic electric that photovoltaic module 22 produces enough can meet the need for electricity of air-conditioner set 1, therefore, photoelectricity powers group 2 under the control of control unit 21, photovoltaic module 22 and electrical network 23 are powered to air-conditioner set 1 in a complementary fashion, air-conditioner set 1 then running refrigerating pattern under the control of the controller, therefore, air-conditioning system just can under the two ore control of controller and control unit 21, run luminous energy, electric energy refrigeration mode.
In addition, on one point illumination all do not have or illumination is extremely low when, as summer evenings, now house interior still needs to carry out refrigeration cool-down, but the photovoltaic electric energy that photovoltaic module 22 produces is zero, therefore, photoelectricity powers group 2 under the control of control unit 21, utilizes electrical network 23 to power to air-conditioner set 1 separately, air-conditioner set 1 then running refrigerating pattern under the control of the controller, therefore, air-conditioning system just under the two ore control of controller and control unit 21, can run electric energy refrigeration mode.
And fine day in the winter time, when ambient temperature lower (generally all lower than the second preset temperature value), when illumination condition is good, house interior needs to carry out heating heating, thus compressor 11, cross valve 12, indoor heat exchanger 15, triple valve 17, second throttling arrangement 18, heat collector 16, first throttle device 14, outdoor heat exchanger 13 can form first and heat closed circuit, first heats closed circuit can produce heat continuously under the effect of photovoltaic module 22, raise to make the temperature in room, to reach the object heating room, particularly, if the photovoltaic electric energy that photovoltaic module 22 produces can meet the need for electricity of air-conditioner set 1, then air-conditioning system is under the two ore control of controller and control unit 21, run luminous energy, heat energy heating mode.
On the contrary, fine day in the winter time, if the photovoltaic electric that photovoltaic module 22 produces enough can meet the need for electricity of air-conditioner set 1, then photoelectricity powers group 2 under the control of control unit 21, photovoltaic module 22 and electrical network 23 are powered to air-conditioner set 1 in a complementary fashion, and air-conditioner set 1 then runs heat energy heating mode under the control of the controller, therefore, air-conditioning system just under the two ore control of controller and control unit 21, can run luminous energy, electric energy, thermal refrigerating pattern.
And it is overcast and rainy in the winter time, ambient temperature lower (generally also lower than the second preset temperature value), illumination condition is also poor, now, the house interior needs that remain unchanged heat heating, but heat collector 16 but can not provide institute's calorific requirement for air-conditioner set 1, the photovoltaic electric energy that photovoltaic module 22 produces also levels off to zero, thus compressor 11, cross valve 12, indoor heat exchanger 15, triple valve 17, the second refrigeration cycle that outdoor heat exchanger 13 forms just can run electric energy heating mode under the two ore control of controller and control unit 21, that is, now photoelectricity powers group 2 under the control of control unit 21, electrical network 23 is utilized to power to air-conditioner set 1 separately, air-conditioner set 1 runs conventional heating mode under the control of the controller, therefore, air-conditioning system just can under the two ore control of controller and control unit 21, also heat can be produced continuously, to meet the heating needs in room.
In addition, in seasons such as spring and autumn, extraneous environment temperature is more moderate, general between the first preset temperature value and the second preset temperature value, thus now, do not need air-conditioning system freeze to room or heat, thus air-conditioner set can quit work, to reach the object of saving energy consumption.
In the description of this description, term " first ", " second " object only for describing, and instruction or hint relative importance can not be interpreted as, unless otherwise clearly defined and limited; Term " connection ", " installation ", " fixing " etc. all should be interpreted broadly, and such as, " connection " can be fixedly connected with, and also can be removably connect, or connects integratedly; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the description of this description, specific features, structure, material or feature that the description of term " embodiment ", " some embodiments ", " specific embodiment " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an air-conditioning system, is characterized in that, comprising:
Photoelectricity is powered group, and described photoelectricity group of powering comprises control unit, photovoltaic module and electrical network, and wherein, described photovoltaic module and described electrical network are connected in parallel to described control unit;
Air-conditioner set, be connected with described control unit, comprise interconnective compressor, cross valve, outdoor heat exchanger, first throttle device, indoor heat exchanger and heat collector, wherein, triple valve is provided with between described first throttle device and described indoor heat exchanger, one end of described heat collector is connected with described first throttle device, and the other end of described heat collector is connected to described triple valve;
Wherein, described photovoltaic module and described electrical network are powered to described air-conditioner set in a complementary fashion by described control unit, to make described air-conditioner set work.
2. air-conditioning system according to claim 1, is characterized in that, described photoelectricity is powered to organize and also comprised:
First AC/DC converting unit, one end of described first AC/DC converting unit is connected with described control unit, the other end of described first AC/DC converting unit separates two branch roads, first branch road is connected with described photovoltaic module, second branch road is connected with described electrical network, wherein, described first AC/DC converting unit converts alternating current needed for described air-conditioner set to for the photovoltaic DC electricity making described photovoltaic module and produce;
Second AC/DC converting unit, is arranged on described second branch road, and wherein, described second AC/DC converting unit converts alternating current to for the photovoltaic DC electricity making described photovoltaic module and produce and is stored in described electrical network.
3. air-conditioning system according to claim 1, is characterized in that, described air-conditioner set also comprises:
Second throttling arrangement, is arranged between described heat collector and described triple valve.
4. air-conditioning system according to claim 1, is characterized in that, described air-conditioner set also comprises:
Detector, for the temperature value outside sensing chamber and illuminance value;
Controller, is connected with described detector, described triple valve, described cross valve, controls the work of described triple valve, described cross valve for the described temperature value that detects according to described detector and described illuminance value.
5. air-conditioning system according to claim 3, is characterized in that, described first throttle device, described second throttling arrangement are capillary or electric expansion valve or heating power expansion valve.
6. air-conditioning system according to any one of claim 1 to 5, is characterized in that, described outdoor heat exchanger is air-cooled or water cooling heat exchanger, and described heat collector is direct-expansion type solar energy heat collector.
7. air-conditioning system according to any one of claim 1 to 5, is characterized in that, described indoor heat exchanger is provided with the first blower fan, described outdoor heat exchanger is provided with the second blower fan.
8. a control method for air-conditioning system, for the computer-room air conditioning system such as according to any one of claim 1 to 7, is characterized in that, comprising:
Detecting step, utilizes the temperature value outside detector sensing chamber and illuminance value, and described temperature value, described illuminance value is sent as electronic signals;
Rate-determining steps, controller is utilized to receive the described signal of telecommunication, and the described temperature value represented by the described signal of telecommunication, described illuminance value obtain comparison result with preset temperature value, default illuminance value comparison, and according to described comparison result, control the work of described triple valve, described cross valve respectively.
9. the control method of air-conditioning system according to claim 8, is characterized in that, in described rate-determining steps,
When the described temperature value that described detector detects is greater than the first preset temperature value, described cross valve, described triple valve are in the first duty, described compressor, described cross valve, described outdoor heat exchanger, described first throttle device, described triple valve, described indoor heat exchanger composition refrigeration cycle, to make described air-conditioner set running refrigerating pattern;
The described temperature value detected when described detector is less than the second preset temperature value, and the described illuminance value that described detector detects is when being more than or equal to described default illuminance value, described cross valve is in the second duty, described triple valve is in the second duty, described compressor, described cross valve, described indoor heat exchanger, described triple valve, described second throttling arrangement, described heat collector, described first throttle device, described outdoor heat exchanger composition first heat closed circuit, run heat energy heating mode to make described air-conditioner set;
The described temperature value detected when described detector is less than described second preset temperature value, and the described illuminance value that described detector detects is when being less than described default illuminance value, described cross valve is in the second duty, described triple valve is in the first duty, described compressor, described cross valve, described indoor heat exchanger, described triple valve, described first throttle device, described outdoor heat exchanger composition second heat closed circuit, run conventional heating mode to make described air-conditioner set;
Wherein, described first preset temperature value is greater than described second preset temperature value, and when described temperature value be more than or equal to described second preset temperature value be less than described first preset temperature value time, described air-conditioner set stops to work.
10. the control method of air-conditioning system according to claim 9, is characterized in that, in described rate-determining steps,
When the photovoltaic electric energy that described photovoltaic module produces is more than or equal to electric energy needed for described air-conditioner set, described air-conditioner set is powered separately by described photovoltaic module, runs luminous energy refrigeration mode or luminous energy, heat energy heating mode to make described air-conditioner set;
When the described photovoltaic electric energy of the generation of described photovoltaic module is less than electric energy needed for described air-conditioner set, described air-conditioner set is powered by described photovoltaic module, described power grid joint, runs luminous energy, electric energy refrigeration mode or luminous energy, electric energy, heat energy heating mode to make described air-conditioner set;
When the described photovoltaic electric energy of the generation of described photovoltaic module is zero, described air-conditioner set is powered separately by described electrical network, runs electric energy refrigeration mode or the conventional heating mode of electric energy to make described air-conditioner set;
Wherein, when the photovoltaic electric energy of the generation of described photovoltaic module is greater than electric energy needed for described air-conditioner set, unnecessary described photovoltaic electric energy also stores up into described electrical network by described second AC/DC converting unit.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627471A (en) * | 2015-12-31 | 2016-06-01 | 天津中科绿建节能技术服务有限公司 | Energy-saved central air conditioner |
| CN111076327A (en) * | 2019-12-20 | 2020-04-28 | 珠海格力电器股份有限公司 | Air conditioning system, control method and device thereof, and storage medium |
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