CN102374689A - Solar photovoltaic cold-heat set of air conditioner - Google Patents
Solar photovoltaic cold-heat set of air conditioner Download PDFInfo
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- CN102374689A CN102374689A CN2011102929983A CN201110292998A CN102374689A CN 102374689 A CN102374689 A CN 102374689A CN 2011102929983 A CN2011102929983 A CN 2011102929983A CN 201110292998 A CN201110292998 A CN 201110292998A CN 102374689 A CN102374689 A CN 102374689A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
- F25B27/005—Machines, plants or systems, using particular sources of energy using solar energy in compression type systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
- F24F5/0035—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 using evaporation
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
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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
- F24F2005/0067—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 with photovoltaic panels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/54—Free-cooling systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a cold-heat set, which can be driven completely utilizing solar photovoltaic energy at daytime, of an air conditioner. The cold-heat set comprises multiple sets of cold-heat machine subsystems, a photovoltaic direct-current power supply system and a controller, wherein the photovoltaic direct-current power supply system is used for supplying electric power for the cold-heat machine subsystems; one end of the controller is connected with the photovoltaic direct-current power supply system, and the other end is connected with the multiple sets of cold-heat machine subsystems in parallel; each set of cold-heat machine subsystem comprises a low-power direct-current compressor, a condenser, an electronic expansion valve and an evaporator, all of which are connected through pipelines to form a circuit for circular flowing of refrigerant; and the controller can control the corresponding number of cold-heat machine subsystems according to the power output by the photovoltaic direct-current power supply system. The cold-heat set has the advantages that: the use rates of the photovoltaic direct-current power supply system and the direct-current compressor are improved, the everyday working time of the direct-current compressor is prolonged, solar energy is sufficiently utilized, the utilization rate of solar energy is higher, and the purpose of energy saving can be well met.
Description
Technical field
The present invention relates to a kind of utilization too the source can photovoltaic DC power drives, be used to the cold and hot system of freezing and/or heating.
Background technology
Existing photovoltaic vapor compression type refrigerating system has all used inverter; Need boost, be reverse into alternating current earlier through the direct current that inverter is exported solar energy photovoltaic panel during work, go to drive AC compressor to produce heat and cold with alternating current then.And costing an arm and a leg of inverter increased the cost of manufacture of system, in addition, when sunlight intensity is not enough, also need solar photovoltaic power and civil power butt joint be removed the combination drive compressor.
Common solar water heater is to utilize flat-plate collector, vacuum glass tube heat collector etc. to collect the energy of sunshines, thus the device that cold water is heated.But this solar water heater can not be produced cold water when producing hot water; In addition; Although solar energy itself is inexhaustible, nexhaustible clean energy resource, when the cloudy day needed most hot water, the regular solar water heater but can't be obtained hot water because sunlight strength is not enough.
For this reason; Chinese patent number discloses a kind of photovoltaic-civil power hybrid-driven cool and heat storage heat pump unit for the patent of " ZL 200910076400.X "; It has a direct current compressor and AC compressor that complements one another, and when sunny, the direct current that utilizes solar panel to produce directly drives direct current compressor to produce heat and cold; And cold that is produced and heat can directly offer the indoor environment that needs cold or heat on the one hand; Room air is lowered the temperature or heated, on the other hand, also can cold or heat be stored through the cold-storage and the heat storage medium of phase transformation; Cool storage medium through having stored cold or heat or heat storage medium are lowered the temperature to water or are heated up then, for the user provides required cold water and/or hot water.And when sunlight is not enough; Then drive AC compressor through civil power; Thereby system is worked on, and this photovoltaic-civil power hybrid-driven cool and heat storage heat pump unit is compared with existing photovoltaic vapour compression refrigeration system, after it need not to use expensive inverter that direct current is boosted earlier, is reverse into alternating current; Go to drive AC compressor with alternating current, thereby reduced the cost of system; Compare with common solar water heater, it can produce cold water and hot water simultaneously, and when sunlight is not enough, produces cold water and hot water thereby then can drive AC compressor through civil power.
But, this photovoltaic-civil power hybrid-driven cool and heat storage heat pump unit this part that still has some deficits, at first; The photovoltaic DC subsystem of this source pump is merely a more powerful direct current compressor power supply, and the minimum operate power of direct current compressor is constant, and the real output of solar cell photovoltaic plate but is with the increase of intensity of illumination or reduces and correspondingly increase or reduce; Therefore, when intensity of illumination is more weak (as, under the situation such as cloudy day, rainy day, morning or dusk); The power of this photovoltaic DC subsystem output is often less than the minimum operate power of this direct current compressor; At this moment, direct current compressor can't operate as normal, must drive the source pump operation with civil power; Therefore; The utilization rate of photovoltaic DC subsystem and direct current compressor is lower, and the working time is less, still can't make full use of solar energy; Secondly; When sunny; The rotating speed of direct current compressor is along with the increase of the power of photovoltaic DC subsystem output increases; Though and direct current compressor rotates refrigerating capacity or the heating capacity of the corresponding generation of acting institute and can increase with the increase of the rotating speed of compressor, the increment rate of its refrigerating capacity or heating capacity but is lower than the increment rate of the operate power of direct current compressor, particularly during direct current compressor entering high speed rotation status; Even the operate power of direct current compressor rises significantly; But the refrigerating capacity of its corresponding generation of acting institute or heating capacity are to have only rising by a small margin, therefore, and under this running status; The refrigerating capacity of the corresponding generation of direct current compressor acting institute and the power ratio of the energy (electric energy) that its operation is consumed be below 3 times, direct current compressor do work the power ratio of heating capacity and the energy (electric energy) that its operation is consumed of corresponding generation then below 4 times.Far below direct current compressor when rotating (when direct current compressor slowly runs) near minimum operate power state; Direct current compressor acting refrigerating capacity and the power ratio of the energy (electric energy) that its operation is consumed of corresponding generation, obviously this source pump is lower to solar energy utilization rate.
Summary of the invention
The object of the present invention is to provide a kind ofly can more make full use of solar energy, and refrigeration, photovoltaic air conditioner cold-heat unit that heating efficiency is higher.
A kind of photovoltaic air conditioner cold-heat unit of the present invention comprises:
Many cover cooling and heating machine subsystems; Every cover cooling and heating machine subsystem comprises small-power direct current compressor, condenser, electric expansion valve and evaporimeter, and described small-power direct current compressor, condenser, electric expansion valve and evaporimeter are connected to form a loop that supplies cold-producing medium to circulate through pipeline;
The photovoltaic DC power-supply system is used for the cooling and heating machine subsystem is supplied power;
One end of controller is connected with the photovoltaic DC power-supply system; The other end is parallel with many cover cooling and heating machine subsystems; The power that controller is exported according to the photovoltaic DC power-supply system is controlled the cooling and heating machine subsystem of respective amount, and the small-power direct current compressor of this cooling and heating machine subsystem is started or shutdown.
The present invention is owing to be provided with the cooling and heating machine subsystems that many covers have the small-power direct current compressor, and through a controller photovoltaic DC power-supply system is connected with many cover cooling and heating machine subsystems, this controller can according to the power of photovoltaic DC power-supply system output control respective amount the cooling and heating machine subsystem, make the direct current compressor of this cooling and heating machine subsystem start perhaps shutdown; Therefore; When intensity of illumination is more weak (as, under the situation such as cloudy day, rainy day, morning or dusk), though the power of this photovoltaic DC power-supply system output is less relatively; But the minimum operate power of baby compressor is littler relatively; So be easy to satisfy the minimum operate power of at least one small-power direct current compressor, at this moment, controller is according to the power of photovoltaic DC power-supply system output; The direct current compressor that starts respective numbers (for example moves; When the power of photovoltaic DC power-supply system output during greater than the minimum operate power of a small-power direct current compressor, controller starts a direct current compressor operation, when the power of photovoltaic DC power-supply system output during greater than the minimum operate power sum of two direct current compressors; Controller just starts corresponding two direct current compressors operation; By that analogy), to produce cold or heat, obviously improved the utilization rate of photovoltaic DC power-supply system and direct current compressor; Prolong the direct current compressor working time of every day, utilize solar energy more fully; And when sunny; The photovoltaic DC power-supply system is then given many cover cooling and heating machine subsystems through controller with the power division of output, and every small-power direct current compressor all can be in than slow-speed of revolution running, under this running status; Direct current compressor acting refrigerating capacity and the power specific energy of the energy that its operation is consumed of corresponding generation reach more than 4 times; The heating capacity of the corresponding generation of direct current compressor acting institute and the power ratio of the energy that its operation is consumed are then more than 5 times, and be obvious, compared with prior art; Cold and hot unit of the present invention is higher to solar energy utilization rate, more can satisfy purpose of energy saving.
Description of drawings
Fig. 1 is a kind of sketch map of the present invention.
Fig. 2, Fig. 3 are the sketch mapes of one embodiment of the present invention.
Fig. 4, Fig. 5 are the sketch mapes of another embodiment of the invention.
The specific embodiment
As shown in Figure 1; Photovoltaic air conditioner cold-heat unit of the present invention; Comprise many cover cooling and heating machine subsystems 10; Every cover cooling and heating machine subsystem 10 comprises small-power direct current compressor 3, condenser 5, electric expansion valve 4 and evaporimeter 6, and described small-power direct current compressor 3, condenser 5, electric expansion valve 4 and evaporimeter 6 are connected to form a loop that supplies cold-producing medium to circulate through pipeline; Photovoltaic DC power-supply system 1 is used for 10 power supplies of cooling and heating machine subsystem, and photovoltaic DC power-supply system 1 is connected and is connected in parallel according to the requirement of load by a plurality of solar modules and forms; One end of controller 2 is connected with the photovoltaic DC power-supply system; The other end is parallel with many cover cooling and heating machine subsystems 10; Controller 2 is controlled the cooling and heating machine subsystem 10 of respective amount according to the power of photovoltaic DC power-supply system 1 output; The small-power direct current compressor 3 of this cooling and heating machine subsystem 10 is started or shutdown, and the quantity of described cooling and heating machine subsystem 10 can be set (situation that is illustrated in figure 1 as two cover cooling and heating machine subsystems 10) according to the peak power output of photovoltaic DC power-supply system 1 and the power of every cover cooling and heating machine subsystem 10.When intensity of illumination is more weak (as, under the situation such as cloudy day, rainy day, morning or dusk), though the power of this photovoltaic DC power-supply system 1 output is less relatively; But the minimum operate power of baby compressor 3 is littler relatively; So be easy to satisfy the minimum operate power of at least one small-power direct current compressor 3, at this moment, controller 2 is according to the power of photovoltaic DC power-supply system output; The direct current compressor 3 that starts respective numbers (for example moves; When the power of photovoltaic DC power-supply system output during greater than the minimum operate power of a small-power direct current compressor, controller starts a direct current compressor operation, when the power of photovoltaic DC power-supply system output during greater than the minimum operate power sum of two direct current compressors; Controller just starts corresponding two direct current compressors operation; By that analogy), to produce cold or heat, obviously improved the utilization rate of photovoltaic DC power-supply system 1 and direct current compressor 3; Prolong the direct current compressor working time of every day, utilize solar energy more fully; And when sunny; 1 of photovoltaic DC power-supply system is passed through controller 2 and is given many cover cooling and heating machine subsystems 10 with the power division of output; Every small-power direct current compressor 3 all can be in than slow-speed of revolution running, under this running status, direct current compressor 3 actings refrigerating capacity and the power specific energy of the energy that its operation is consumed of corresponding generation reach more than 4 times; Direct current compressor 3 acting the power ratio of heating capacity and the energy that its operation is consumed of corresponding generation then more than 5 times; Obviously, cold and hot unit of the present invention is higher to solar energy utilization rate, more can satisfy purpose of energy saving.
The motor of described direct current compressor 3 can adopt the direct current brushless permanent magnet motor; Also can adopt the DC brush magneto; But because the service life of the carbon brush of DC brush magneto is shorter, it is higher to change frequency, and changes comparatively trouble of operation; For this reason, the motor of direct current compressor can preferentially be selected the direct current brushless permanent magnet motor for use; In addition, for reducing the minimum operate power of direct current compressor 3, the pump housing of direct current compressor can adopt rotary compression pump.
Described controller 2 can be electrically connected with the AC power (not shown) through the rectifying installation (not shown); Like this; When the solar photovoltaic assembly of photovoltaic DC power-supply system not enough or night unglazed according to the time, can be with AC power as additional power supply, the AC rectification of AC power (like civil power) output is become direct current earlier through rectifying installation; Flow to controller 2 again, drive cooling and heating machine subsystem 10 for controller 2.
Embodiment 1: described condenser 5 can be air-cooled condenser, also can be water-cooled condenser; Evaporimeter 6 can be air-cooled evaporimeter, also can be the water-cooled evaporimeter, and as shown in Figure 1 is that condenser 5 is the situation of air-cooled evaporimeter for air-cooled condenser, evaporimeter 6.As shown in Figure 2 is that evaporimeter 6 is the water-cooled evaporimeter; Condenser 5 is the situation of air-cooled condenser; The refrigeration coil of this water-cooled evaporimeter places (refrigeration coil of each water-cooled evaporimeter can place respectively in the different cold-accumulating box, also can all or part ofly put in the same cold-accumulating box, is illustrated in figure 2 as a plurality of refrigeration coils and places the situation in the same cold-accumulating box) in the cold-accumulating box 20; Can lower the temperature to the liquid (like water) in the cold-accumulating box 20; This refrigeration coil can be copper pipe, also can be stainless steel tube, can directly use cold water as life through the water of cooling; Also can extracted out and its cold is dispersed in the room air that needs cooling by fan coil 40 by water pump 30, this water pump 30 be communicated with the water inlet and the delivery port of cold-accumulating box 20 respectively through pipeline, forms the closed circuit that supplies water and flow; Certainly; Can also and its cold be dispersed in the room air that needs cooling by water pump 30 extractions through cold air sheet (not shown); The delivery port of the water inlet of this water pump 30 and cold-accumulating box 20 leads to, and the water inlet of cold air sheet and delivery port then are communicated with the delivery port of water pump and the water inlet of cold-accumulating box respectively, and described cold air sheet is prior art (as adopting the patent application described cold air sheet of Chinese patent publication number for " CN 1079041 "); Here no longer its concrete structure is given unnecessary details; And because cold air sheet when room air is lowered the temperature, the temperature difference of cold air sheet and room air can make cold air sheet outer surface form condensation water and drip and the ground of getting wet, for this reason; The water tank (not shown) can below the cold air sheet, be placed, to hold the condensation water that drips from the cold air sheet.On the cold-accumulating box 20 the temperature sensor (not shown) can be set; This temperature sensor is electrically connected with controller; When the fluid temperature in the detected cold-accumulating box 20 of temperature sensor reached setting value, controller 2 quit work the direct current compressor 3 of corresponding cooling and heating machine subsystem 10, adopted this kind mode can utilize solar energy more fully; The cold that is stored in when sunny in the liquid of cold-accumulating box 20 can be (like night when intensity of illumination is extremely weak; Rainy day etc.) extract the air feed coiler out by water pump the time its cold is dispersed in the room air, and need not to need to drive heat pump to produce cold, obviously through civil power as prior art; Can save mass energy; In addition, more nice and cool through the cold that fan coil 40 dispels out or comes out through the cold air sheet, and the cold air of directly producing by boasting unlike air-cooled evaporimeter is perverse just like that cold and make the more weak people of physique be difficult to adapt to.In like manner, when condenser 5 was water-cooled condenser, its heat(ing) coil can be put in the heat storage tank, and the water that heats through heat(ing) coil directly can be used as the domestic hot-water, also can its heat dispelled or be dispersed in the indoor environment that needs to heat up through fan coil or radiator.
As shown in Figure 3; In order photovoltaic air conditioner cold-heat unit to be met the different needs and to save system's cost of manufacture; Can make cold-producing medium positive flow that direct current compressor 3 flows out behind condenser 5 and evaporimeter 6, be back to the four-way change-over valve 71 of compressor 3 through condenser 5 and evaporimeter 6 or reverse flow being provided with on the cooling and heating machine subsystem 10; The switching of its flow direction is to realize through the switch valve on the four-way change-over valve 71; Wherein, the forward flow direction of cold-producing medium is: compressor 3 → four-way change-over valve 71 → condenser 5 → electric expansion valve 4 → evaporimeter 6 → four-way change-over valve 71 → compressor 3; The reverse flow direction of cold-producing medium then is: compressor 3 → four-way change-over valve 71 → evaporimeter 6 → electric expansion valve 4 → condenser 5 → four-way change-over valve 71 → compressor 3.After through four-way change-over valve 71 the cold-producing medium recycled back being flowed, the generation heat when condenser 5 can be by the cold-producing medium forward flow becomes the generation cold, and the generation cold of evaporimeter 6 during then by the cold-producing medium forward flow becomes the generation heat.
Embodiment 2: like Fig. 4, shown in Figure 5; For utilizing solar energy better, be coupled with heat(ing) coil 8 through three-way diverter valve 72 between described electric expansion valve 4 and the direct current compressor 3, this heat(ing) coil 8 can be copper pipe; Also can be stainless steel tube; Heat(ing) coil 8 places in the heat preservation hot water tank 50, can the water in it be heated, and can directly use as domestic water through the water that heats; Check valve 91,92 in order to the pipeline through and off between control heat preservation hot water tank 50 and electric expansion valve 4 and condenser 5 and the electric expansion valve 4 is set respectively between heat preservation hot water tank 50 and electric expansion valve 4 and condenser 5 and the electric expansion valve 4; On the heat preservation hot water tank 50 the temperature sensor (not shown) can be set, this temperature sensor is electrically connected with controller 2, and (this setting value was generally 50-60 ℃ when the fluid temperature of protecting in the case boiler 50 reached setting value when this temperature sensor detects; Under the more situation be 55 ℃); Controller 2 starts three-way diverter valves 72, makes cold-producing medium switch to and flow to condenser 5 by flowing to heat(ing) coils in the heat preservation hot water tank 50, and by check valve 91 pipeline between heat preservation hot water tank and the electric expansion valve 4 is cut off; In like manner, also can be through controller 2 control three-way diverter valves 72, condenser 5 so that cold-producing medium is not flowed through.Described condenser 5 can be water-cooled condenser, also can be air-cooled condenser, and evaporimeter can be the water-cooled evaporimeter; Also can be air-cooled evaporimeter, as shown in Figure 4, be that evaporimeter 6 is the water-cooled evaporimeter; Condenser 5 is the situation of air-cooled condenser, and the cooling coil pipe that this water-cooled is steamed condenser places in the cold-accumulating box 20, can lower the temperature to the liquid (like water) of cold-accumulating box 20; Through the water of cooling can be directly as the cold water of the usefulness of living; Also can extracted out and by fan coil 40 its cold is dispersed in the room air that needs cooling by water pump 30, this water pump 30 be communicated with the water inlet and the delivery port of cold-accumulating box respectively by pipeline, forms the closed circuit that flows for liquid; Can also and its cold be dispersed in the room air that needs cooling by water pump 30 extractions by the cold air sheet; The water inlet of this water pump and the delivery port of cold-accumulating box lead to; The water inlet of cold air sheet and delivery port then are communicated with the delivery port of water pump and the water inlet of cold-accumulating box respectively; And because cold air sheet when room air is lowered the temperature, the temperature difference of cold air sheet and room air can make cold air sheet outer surface form condensation water and drip and the ground of getting wet, for this reason; The water tank (not shown) can be placed, to hold the condensation water that drips from the cold air sheet below the cold air sheet.As shown in Figure 5; Be that evaporimeter 6 is air-cooled evaporimeter; Condenser 5 is the situation of water-cooled condenser, and the heat(ing) coil of water-cooled condenser places heat storage tank 60, can the liquid (like water) of heat storage tank 60 be heated; The water of warp heating is the hot water of conduct life usefulness directly; Also can extracted out and by fan coil or radiator (not shown) its heat is dispersed in the room air that needs to heat up by water pump, this water pump be communicated with the water inlet and the delivery port of heat storage tank respectively through pipeline, forms the closed circuit that supplies water and flow.
Claims (10)
1. photovoltaic air conditioner cold-heat unit is characterized in that, comprising:
Many cover cooling and heating machine subsystems; Every cover cooling and heating machine subsystem comprises small-power direct current compressor, condenser, electric expansion valve and evaporimeter, and described small-power direct current compressor, condenser, electric expansion valve and evaporimeter are connected to form a loop that supplies cold-producing medium to circulate through pipeline;
The photovoltaic DC power-supply system is used for the cooling and heating machine subsystem is supplied power;
Controller; One end of controller is connected with the photovoltaic DC power-supply system; The other end is parallel with many cover cooling and heating machine subsystems; The power that controller is exported according to the photovoltaic DC power-supply system is controlled the cooling and heating machine subsystem of respective amount, and the small-power direct current compressor of this cooling and heating machine subsystem is started or shutdown.
2. photovoltaic air conditioner cold-heat unit according to claim 1 is characterized in that: described controller is electrically connected with AC power through rectifying installation.
3. photovoltaic air conditioner cold-heat unit according to claim 1 is characterized in that: the motor of described direct current compressor is the direct current brushless permanent magnet motor, and the pump housing then is rotary compression pump.
4. photovoltaic air conditioner cold-heat unit according to claim 1 is characterized in that: described photovoltaic DC power-supply system is connected and is connected in parallel according to the requirement of load by a plurality of solar modules and forms.
5. photovoltaic air conditioner cold-heat unit according to claim 1 is characterized in that: be coupled with heat(ing) coil through three-way diverter valve between described electric expansion valve and the direct current compressor, heat(ing) coil places in the heat preservation hot water tank.
6. photovoltaic air conditioner cold-heat unit according to claim 5; It is characterized in that: the check valve in order to the pipeline through and off between control heat preservation hot water tank and electric expansion valve and condenser and the electric expansion valve is set respectively between described heat preservation hot water tank and electric expansion valve and condenser and the electric expansion valve; On the heat preservation hot water tank temperature sensor can be set, this temperature sensor links to each other with controller.
7. according to each described photovoltaic air conditioner cold-heat unit in the claim 1 to 6, it is characterized in that: described evaporimeter is air-cooled evaporimeter or water-cooled evaporimeter; When evaporimeter was the water-cooled evaporimeter, the refrigeration coil of water-cooled evaporimeter placed in the cold-accumulating box.
8. photovoltaic air conditioner cold-heat unit according to claim 7; It is characterized in that: the delivery port of described cold-accumulating box leads to has water pump; The delivery port of water pump leads to has cold air sheet or fan coil; The delivery port of cold air sheet or fan coil then is communicated with the water inlet of cold-accumulating box, forms the closed circuit of cooling water flows.
9. according to each described photovoltaic air conditioner cold-heat unit in the claim 1 to 6, it is characterized in that: described condenser is air-cooled condenser or water-cooled condenser; When condenser was water-cooled condenser, the heat(ing) coil of water-cooled condenser placed heat storage tank.
10. photovoltaic air conditioner cold-heat unit according to claim 9, it is characterized in that: described heat storage tank is provided with temperature sensor, and this temperature sensor links to each other with controller.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102929983A CN102374689B (en) | 2011-09-30 | 2011-09-30 | Solar photovoltaic cold-heat set of air conditioner |
| PCT/CN2012/001307 WO2013044590A1 (en) | 2011-09-30 | 2012-09-26 | Cooling and heating unit for solar photovoltaic air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102929983A CN102374689B (en) | 2011-09-30 | 2011-09-30 | Solar photovoltaic cold-heat set of air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
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| CN2011102929983A Expired - Fee Related CN102374689B (en) | 2011-09-30 | 2011-09-30 | Solar photovoltaic cold-heat set of air conditioner |
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| WO2013044590A1 (en) * | 2011-09-30 | 2013-04-04 | 广州西河冷热设备工程有限公司 | Cooling and heating unit for solar photovoltaic air conditioner |
| CN103512151A (en) * | 2012-06-29 | 2014-01-15 | 株式会社日立制作所 | Method and device for having control over air conditioner installed in area |
| CN104728998A (en) * | 2013-12-23 | 2015-06-24 | 珠海格力电器股份有限公司 | Control method and device for photovoltaic power supply air conditioning unit |
| CN104949363A (en) * | 2014-03-24 | 2015-09-30 | 珠海格力电器股份有限公司 | Photovoltaic direct-drive compressor unit and control method thereof |
| WO2016127535A1 (en) * | 2015-02-13 | 2016-08-18 | 李士龙 | Solar photovoltaic air conditioning system |
| CN107631398A (en) * | 2017-11-21 | 2018-01-26 | 刘超宇 | A kind of off-grid type photovoltaic directly drives air-conditioning device |
| CN108692403A (en) * | 2018-04-19 | 2018-10-23 | 东莞市众森云联通讯技术有限公司 | A kind of solar energy chilling air conditioning system |
| CN109245716A (en) * | 2018-10-12 | 2019-01-18 | 江苏亚威变压器有限公司 | A kind of distributed photovoltaic and energy-storage system |
| CN109357317A (en) * | 2018-09-27 | 2019-02-19 | 山东泰安亿美达能源科技有限公司 | A kind of solar heating air-conditioning |
| CN109882975A (en) * | 2019-03-11 | 2019-06-14 | 中国科学技术大学 | Off-network photovoltaic directly drives ice-storage air-conditioning refrigerator system |
| CN112556015A (en) * | 2019-09-10 | 2021-03-26 | 广东美的制冷设备有限公司 | Mobile air conditioner and control method thereof |
| CN113028678A (en) * | 2021-03-17 | 2021-06-25 | 广州哈思新能源科技有限公司 | Solar photovoltaic variable-frequency heat pump unit |
| CN114619844A (en) * | 2022-02-25 | 2022-06-14 | 武汉格罗夫氢能汽车有限公司 | Refrigeration control method for solar automobile air conditioning system |
| CN116817380A (en) * | 2023-07-12 | 2023-09-29 | 深圳市前海能源科技发展有限公司 | Regional cold source storage and charge storage coupling energy storage system |
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| CN1945173A (en) * | 2006-11-09 | 2007-04-11 | 中国科学技术大学 | Multiple heat source multifunction solar energy heat pump |
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| WO2013044590A1 (en) * | 2011-09-30 | 2013-04-04 | 广州西河冷热设备工程有限公司 | Cooling and heating unit for solar photovoltaic air conditioner |
| CN103512151A (en) * | 2012-06-29 | 2014-01-15 | 株式会社日立制作所 | Method and device for having control over air conditioner installed in area |
| CN104728998A (en) * | 2013-12-23 | 2015-06-24 | 珠海格力电器股份有限公司 | Control method and device for photovoltaic power supply air conditioning unit |
| CN104949363A (en) * | 2014-03-24 | 2015-09-30 | 珠海格力电器股份有限公司 | Photovoltaic direct-drive compressor unit and control method thereof |
| CN104949363B (en) * | 2014-03-24 | 2017-10-27 | 珠海格力电器股份有限公司 | Photovoltaic direct-drive compressor unit and control method thereof |
| WO2016127535A1 (en) * | 2015-02-13 | 2016-08-18 | 李士龙 | Solar photovoltaic air conditioning system |
| CN107631398A (en) * | 2017-11-21 | 2018-01-26 | 刘超宇 | A kind of off-grid type photovoltaic directly drives air-conditioning device |
| CN108692403A (en) * | 2018-04-19 | 2018-10-23 | 东莞市众森云联通讯技术有限公司 | A kind of solar energy chilling air conditioning system |
| CN109357317A (en) * | 2018-09-27 | 2019-02-19 | 山东泰安亿美达能源科技有限公司 | A kind of solar heating air-conditioning |
| CN109245716A (en) * | 2018-10-12 | 2019-01-18 | 江苏亚威变压器有限公司 | A kind of distributed photovoltaic and energy-storage system |
| CN109882975A (en) * | 2019-03-11 | 2019-06-14 | 中国科学技术大学 | Off-network photovoltaic directly drives ice-storage air-conditioning refrigerator system |
| CN112556015A (en) * | 2019-09-10 | 2021-03-26 | 广东美的制冷设备有限公司 | Mobile air conditioner and control method thereof |
| CN113028678A (en) * | 2021-03-17 | 2021-06-25 | 广州哈思新能源科技有限公司 | Solar photovoltaic variable-frequency heat pump unit |
| CN114619844A (en) * | 2022-02-25 | 2022-06-14 | 武汉格罗夫氢能汽车有限公司 | Refrigeration control method for solar automobile air conditioning system |
| CN114619844B (en) * | 2022-02-25 | 2023-07-18 | 武汉格罗夫氢能汽车有限公司 | Refrigeration control method for solar automobile air conditioning system |
| CN116817380A (en) * | 2023-07-12 | 2023-09-29 | 深圳市前海能源科技发展有限公司 | Regional cold source storage and charge storage coupling energy storage system |
| CN116817380B (en) * | 2023-07-12 | 2024-06-04 | 深圳市前海能源科技发展有限公司 | Regional cold source storage and charge storage coupling energy storage system |
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| Publication number | Publication date |
|---|---|
| WO2013044590A1 (en) | 2013-04-04 |
| CN102374689B (en) | 2013-10-30 |
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