CN111089394A - System and method for intelligently defrosting by using solar photovoltaic and air conditioner - Google Patents
System and method for intelligently defrosting by using solar photovoltaic and air conditioner Download PDFInfo
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- CN111089394A CN111089394A CN201911307133.2A CN201911307133A CN111089394A CN 111089394 A CN111089394 A CN 111089394A CN 201911307133 A CN201911307133 A CN 201911307133A CN 111089394 A CN111089394 A CN 111089394A
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
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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
- F24F11/88—Electrical aspects, e.g. circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Defrosting Systems (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to a system for intelligently defrosting by utilizing solar photovoltaic, which is applied to an outdoor evaporator, wherein the outdoor evaporator comprises a heat exchange tube, and the system for intelligently defrosting by utilizing the solar photovoltaic comprises a temperature sensor, a heating defroster and a photovoltaic cell panel. The temperature sensor is arranged on the heat exchange tube and used for detecting the temperature of an outer tube on the outer tube wall of the heat exchange tube; the heating defroster is arranged on the outdoor evaporator, is electrically connected with the temperature sensor and is used for removing frost on the heat exchange tube; the photovoltaic cell panel is electrically connected with the heating defroster. The system for intelligently defrosting by utilizing the solar photovoltaic can ensure that the outdoor evaporator does not frost in long-term operation and can automatically judge the purpose of intelligent defrosting, and meanwhile, the heating defroster can continuously supply heat to the refrigerant of the heat exchange pipe; also provides a solar photovoltaic intelligent defrosting method realized by using the system and an air conditioner with the system.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a system and a method for intelligently defrosting by utilizing solar photovoltaic and an air conditioner.
Background
In winter, when the air conditioner heats at a low outdoor temperature, especially in a low-temperature and high-cold area, the outdoor unit is prone to frosting, and the heating effect is prone to being affected. In the prior defrosting method of the air conditioner, an air conditioning system and an air-cooled heat pump are combined for application. However, the outdoor unit of the existing heat pump air conditioner is easy to frost in low-temperature and high-cold areas, the defrosting is not clean, the heating capacity is reduced, the heat exchange effect is influenced, the room temperature change fall is large, the temperature field is unbalanced, and the human body feeling comfort level is poor.
Therefore, the invention carries out deep research on the problems of the heat pump air conditioner, such as avoiding frosting of an external machine, incomplete defrosting, influence on heating effect and the like.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides a system and a method for intelligently defrosting by using solar photovoltaic and an air conditioner.
In order to achieve the purpose, the invention adopts the following scheme:
the utility model provides an utilize system of solar photovoltaic intelligence defrosting, is applied to on the outdoor evaporimeter, the outdoor evaporimeter includes the heat exchange tube, utilize system of solar photovoltaic intelligence defrosting includes:
the temperature sensor is arranged on the heat exchange tube and is used for detecting the temperature of the outer tube on the outer tube wall of the heat exchange tube;
the heating defroster is arranged on the outdoor evaporator, is electrically connected with the temperature sensor and is used for removing frost on the heat exchange tube;
a photovoltaic cell panel electrically connected to the heating defroster.
Further, the heating defroster includes:
a defrosting controller electrically connected to the photovoltaic cell panel and to the temperature sensor;
a defrosting heat source load electrically connected to the defrosting controller;
and the storage battery is electrically connected with the controller.
Further, the outdoor evaporator further comprises a plurality of cooling fins; the plurality of radiating fins are arranged and distributed along the same direction; the heat exchange tubes penetrate through the plurality of radiating fins and are distributed along the length direction of the radiating fins.
Further, the defrosting heat source load comprises a first heating tube, a second heating tube, a third heating tube, a first control switch, a second control switch and a third control switch;
the first heating pipe, the second heating pipe and the third heating pipe penetrate through the plurality of radiating fins and are distributed along the length direction of the radiating fins;
the first control switch is arranged on the first heating pipe and is used for controlling the on-off of the first heating pipe; the second control switch is arranged on the second heating tube and is used for controlling the second heating tube to be switched on and off; the third control switch is arranged on the third heating tube and is used for controlling the on-off of the third heating tube.
Further, the second heating tube, the first heating tube and the third heating tube are distributed from top to bottom along the length direction of the cooling fin.
Furthermore, the arrangement areas of the second heating tube and the third heating tube along the length direction of the radiating fin are equal; the area of the pipeline arrangement of the first heating pipe along the length direction of the radiating fin is larger than that of the second heating pipe.
The invention provides an air conditioner, which comprises the system for intelligently defrosting by utilizing solar photovoltaic.
The solar photovoltaic intelligent defrosting system is used for realizing the solar photovoltaic intelligent defrosting during the running period of the compressor and the inner fan in the heating mode, the method judges according to the temperature change of the outer pipe, the storage battery is started to discharge, and the heating output quantity of the defrosting heat source load is controlled by the defrosting controller to defrost.
Further, the specific steps of judging according to the temperature change of the outer tube, starting the storage battery to discharge, and controlling the heating output quantity of the defrosting heat source load through the defrosting controller so as to defrost are as follows:
s1, normally operating a system;
s2, continuously detecting the temperature △ T of an outer pipe on the outer pipe wall of the heat exchange pipe by a temperature sensor within time T;
s3, obtaining the temperature of an outer tube of △ T, if the temperature of the outer tube of △ T is less than or equal to 3 ℃, starting a heating defroster, and immediately starting a storage battery to discharge to control the defrosting heat source load to work;
s4, continuously detecting the temperature of an outer pipe on the outer pipe wall of the heat exchange pipe by the temperature sensor within time T △ T1;
s5, obtaining the temperature of the outer pipe △ T1;
s6, if the temperature of the outer pipe is △ T1 and is more than or equal to 5 ℃, the heating defroster is closed;
s7, judging whether the temperature of the outer pipe △ T1 is larger than or equal to a set temperature A, wherein the temperature A is 0-3 ℃;
s8, if yes, closing the first control switch, and disconnecting the second control switch and the third control switch; the defrosting heat source load outputs heat, enters an intelligent heating defrosting state and operates normally;
s9, if not, continuously detecting the temperature △ T2 of the outer pipe on the outer pipe wall of the heat exchange pipe by the temperature sensor within the time T;
s10, obtaining the temperature of an outer pipe △ T2;
s11, judging whether the temperature of the outer pipe is △ T2 and is not more than a set temperature B, wherein the temperature B is-10-0 ℃;
s12, if yes, closing the first control switch, the second control switch and the third control switch; the defrosting heat source load outputs heat, enters an intelligent heating defrosting state and operates normally;
s13, if not, stopping the system at any time, and closing the heating defroster when the temperature on the outer pipe wall of the heat exchange pipe is detected to be more than or equal to 5 ℃.
Further, in the steps of S2, S4, and S9, t is 1 to 10 min.
Further, in the step S8, the defrosting heat source load outputs heat of 0W to 200W; in step S12, the defrosting heat source load outputs heat of 0W to 600W.
Compared with the prior art, the invention has the following advantages:
the system for intelligently defrosting by utilizing the solar photovoltaic of the invention utilizes the photovoltaic cell panel to convert the solar light source into electric energy by arranging the temperature sensor on the heat exchange tube and arranging the heating defroster on the outdoor evaporator, thereby providing the electric energy for the heating defroster and assisting the heating defroster to carry out defrosting control, when the outdoor evaporator is frosted and frozen, the temperature sensor detects the temperature on the outer pipe wall of the heat exchange pipe, if the frosting on the heat exchange pipe is judged, the electric heating defroster is started to quickly remove the frosting on the outdoor evaporator and avoid the frosting of the outdoor evaporator, thereby achieving the purposes of no frost formation and automatic judgment and intelligent defrosting of the outdoor evaporator in long-term operation, simultaneously, the heating defroster can continuously supply heat to the refrigerant of the heat exchange pipe, thereby ensuring that the heat transfer performance and the resistance performance of the outdoor evaporator are not deteriorated, and the heat exchange of the air conditioner is not influenced and continuously and stably supplies heat to the room for a long time.
Drawings
The present application will be described in further detail with reference to the following drawings and detailed description.
Fig. 1 is a schematic front view of the system for intelligent defrosting using solar photovoltaic on an outdoor evaporator according to the present invention.
Fig. 2 is a side view schematic diagram of the system for intelligent defrosting using solar photovoltaic of the present invention on an outdoor evaporator.
Fig. 3 is a schematic structural diagram of the system for intelligent defrosting by solar photovoltaic of the invention.
Fig. 4 is a flowchart of the program of the system for intelligent defrosting using solar photovoltaic of the present invention.
The figure includes:
the defrosting device comprises an outdoor evaporator 1, a heat exchange pipe 11, a cooling fin 12, a heating defroster 2, a defrosting controller 21, a defrosting heat source load 22, a first heating pipe 221, a second heating pipe 222, a third heating pipe 223, a first control switch 224, a second control switch 225, a third control switch 226, a storage battery 23 and a photovoltaic cell panel 3.
Detailed Description
The present application is further described in conjunction with the following examples.
Referring to fig. 1 to 4, a system for defrosting by solar photovoltaic intelligence is applied to an outdoor evaporator 1, the outdoor evaporator 1 comprises a heat exchange tube 11, and the system for defrosting by solar photovoltaic intelligence comprises a temperature sensor, a heating defroster 2 and a photovoltaic cell panel 3. The temperature sensor is arranged on the heat exchange tube 11 and is used for detecting the temperature of an outer tube on the outer tube wall of the heat exchange tube 11; the heating defroster 2 is arranged on the outdoor evaporator 1, is electrically connected with the temperature sensor, and is used for removing frost on the heat exchange tube 11; the photovoltaic cell panel 3 is electrically connected to the heating defroster 2.
The system for defrosting intelligently by using the solar photovoltaic utilizes the solar photovoltaic to convert a solar light source into electric energy by arranging the temperature sensor on the heat exchange tube 11 and the heating defroster 2 on the outdoor evaporator 1 and utilizes the photovoltaic cell panel 3 to provide the electric energy for the heating defroster 2 and assist the heating defroster 2 to carry out defrosting control, when the outdoor evaporator 1 is frosted and frozen, the temperature sensor detects the temperature on the outer tube wall of the heat exchange tube 11, the electric heating defroster is started to quickly remove the frosting on the outdoor evaporator 1 and avoid the frosting of the outdoor evaporator 1, thereby achieving the purposes of no frost formation and automatic judgment and intelligent defrosting in the long-term operation of the outdoor evaporator 1, simultaneously, the heating defroster 2 can continuously supply heat to the refrigerant of the heat exchange pipe 11, thereby ensuring that the heat transfer performance and the resistance performance of the outdoor evaporator 1 are not deteriorated, and the heat exchange of the air conditioner is not influenced and continuously and stably supplies heat to the room for a long time.
The heating defroster 2 includes a defrosting controller 21, a defrosting heat source load 22, and a storage battery 23. The defrosting controller 21 is electrically connected with the photovoltaic cell panel 3 and the temperature sensor; the defrosting heat source load 22 is electrically connected to the defrosting controller 21; the storage battery 23 is electrically connected with the controller. Utilize photovoltaic cell board 3 to turn into the electric energy with the solar light source, the electric energy charges under the control of defrosting controller 21 and gets into in the battery 23, when outdoor evaporimeter 1 frosts, when freezing, detect the temperature on the outer pipe wall of heat exchange tube 11 through temperature sensor, if judge frosting on the heat exchange tube 11, start battery 23 and discharge, control defrosting heat source load 22 work through defrosting controller 21, output heat, can remove the frosting on outdoor evaporimeter 1 fast, avoid outdoor evaporimeter 1 frosting, thereby reach outdoor evaporimeter 1 long-term operation in not frosting and automatic judgement intelligence defrosting purpose and last heat supply effect.
Preferably, the outdoor evaporator 1 further includes a plurality of fins 12; the plurality of radiating fins 12 are arranged and distributed along the same direction; the heat exchange tubes 11 are double rows of heat exchange tubes. The heat exchange tubes 11 penetrate through a plurality of the fins 12 and are distributed along the length direction of the fins 12. The upper and lower lengths of the fins 12 are the lengths of the fins 12, and the left and right lengths are the widths of the fins 12. The defrosting heat source load 22 is arranged on the outdoor evaporator 1, when the outdoor evaporator 1 is frosted and frozen, after the defrosting heat source load 22 works, heat is output and is transmitted to the heat exchange tube 11 from the radiating fin 12, frosting on the outdoor evaporator 1 can be quickly removed, frosting of the outdoor evaporator 1 is avoided, and therefore the purposes that the outdoor evaporator 1 does not frost in long-term operation and intelligent defrosting is automatically judged are achieved, meanwhile, the defrosting heat source load 22 can continuously supply heat for the refrigerant of the heat exchange tube 11 through the radiating fin 12, the heat transfer performance and the resistance performance of the outdoor evaporator 1 are ensured not to be deteriorated, and the air conditioner can continuously and stably supply heat for a room for a long time without influencing heat exchange.
In the present embodiment, the defrosting heat source load 22 includes a first heat generation pipe 221, a second heat generation pipe 222, a third heat generation pipe 223, a first control switch 224, a second control switch 225, and a third control switch 226; the first heat-generating pipe 221, the second heat-generating pipe 222 and the third heat-generating pipe 223 all penetrate through the plurality of cooling fins 12 and are distributed along the length direction of the cooling fins 12; the first control switch 224 is disposed on the first heat-emitting tube 221 and is used for controlling the on-off of the first heat-emitting tube 221; the second control switch 225 is arranged on the second heating tube 222 and is used for controlling the second heating tube 222 to be switched on and off; the third control switch 226 is disposed on the third heat generating tube 223 and is used for controlling the on/off of the third heat generating tube 223. The second heat pipe 222, the first heat pipe 221 and the third heat pipe 223 are distributed from top to bottom along the length direction of the heat sink 12. The first control switch 224, the second control switch 225, and the third control switch 226 are electrically connected to the defrost controller 21, respectively; the second heating tube 222, the first heating tube 221 and the third heating tube 223 are respectively arranged in the length direction of the radiating fin 12, when the outdoor evaporator 1 is frosted and iced, after the second heating tube 222, the first heating tube 221 and the third heating tube 223 work, heat is output and is transmitted to the heat exchange tube 11 from the radiating fin 12, frosting on the outdoor evaporator 1 can be quickly removed, and frosting of the outdoor evaporator 1 is avoided, so that the purposes of no frosting and automatic judgment of intelligent defrosting in long-term operation of the outdoor evaporator 1 are achieved, meanwhile, the second heating tube 222, the first heating tube 221 and the third heating tube 223 can continuously supply heat for the refrigerant of the heat exchange tube 11 through the radiating fin 12, heat transfer performance and resistance performance of the outdoor evaporator 1 are ensured not to be deteriorated, and heat exchange of the air conditioner is not influenced and can continuously and stably supply heat for a room for a long time. The first heat-generating pipe 221, the second heat-generating pipe 222 and the third heat-generating pipe 223 are all PTC heat-generating pipes, and have a good heating effect.
Preferably, the second heat generating tube 222 and the third heat generating tube 223 have the same area of tube arrangement along the length direction of the heat sink 12; the first heat generating pipe 221 has a larger area of a pipe arrangement along the length direction of the heat sink 12 than the second heat generating pipe 222. The arrangement area of the first heating pipe 221 along the length direction of the radiating fin 12 is larger than that of the second heating pipe 222 or the third heating pipe 223, the judgment can be carried out according to the temperature change of the outer pipe and the frosting heat exchange condition, the storage battery 23 is reasonably started to discharge, the first heating pipe 221 is controlled to work through the defrosting controller 21, heat is output, the frosting on the heat exchange pipe 11 can be quickly removed through the transmission from the middle of the radiating fin 12 to the upper end and the lower end of the radiating fin 12, and the frosting of the outdoor evaporator 1 is avoided.
The invention provides an air conditioner, which comprises the system for intelligently defrosting by utilizing solar photovoltaic as described above; the system also comprises a compressor, a four-way valve, an inner fan, an electronic expansion valve and an outdoor evaporator 1. Wherein, the room compressor, the four-way valve, the inner fan, the electronic expansion valve and the outdoor evaporator 1 form a refrigeration or heating circulating flow path; the system for defrosting by utilizing the solar photovoltaic intelligence is applied to an outdoor evaporator 1, the system for defrosting by utilizing the solar photovoltaic intelligence is arranged on an air conditioner, the fact that an outer machine evaporator is not frosted is ensured, during heating, a heating defroster 2 detects the temperature and the environment temperature on the outer pipe wall of a heat exchange pipe 11 according to a temperature sensor, heating output heating amount is controlled, the purpose that the outdoor evaporator 1 is not frosted and not defrosted is achieved, the outdoor evaporator 1 can be combined with a compressor, a four-way valve, an inner fan and an electronic expansion valve to form a heating circulation flow path, the purpose of continuous heating is achieved, and the overall performance of the system is improved.
In the air conditioner running mode, when the air conditioner starts a refrigeration mode, the defroster is always kept in a closed state; when the heating mode is started, the output ratio of the heating defroster 2 for heating defrosting is intelligently started according to the detection condition.
The invention also provides a method for defrosting by utilizing the solar photovoltaic intelligence, which is realized by using the system for defrosting by utilizing the solar photovoltaic intelligence during the running period of the compressor and the inner fan in the heating mode. The method comprises the following specific steps:
s1, normally operating a system;
s2, continuously detecting the temperature of an outer pipe △ T on the outer pipe wall of the heat exchange pipe 11 by a temperature sensor within time T, wherein T is 1-10 min;
s3, obtaining the temperature of an outer tube △ T, if the temperature of the outer tube △ T is less than or equal to 3 ℃, starting the heating defroster 2, and immediately starting the storage battery 23 to discharge to control the defrosting heat source load 22 to work;
s4, continuously detecting the temperature of the outer pipe on the outer pipe wall of the heat exchange pipe 11 by the temperature sensor within T △ T1, wherein T is 1-10 min;
s5, obtaining the temperature of the outer pipe △ T1;
s6, if the temperature of the outer pipe is △ T1 and is more than or equal to 5 ℃, the heating defroster 2 is closed, and the heating output quantity of the defrosting heat source load is zero;
s7, judging whether the temperature of the outer pipe △ T1 is larger than or equal to a set temperature A, wherein the temperature A is 0-3 ℃;
s8, if yes, the first control switch 224 is closed, and the second control switch 225 and the third control switch 226 are opened; the defrosting heat source load 22 outputs heat, enters an intelligent heating defrosting state, and operates normally; the heating output of the defrosting heat source load is the heating output of the first heat exchange pipe; reasonably controlling the output ratio of the defrosting heat source load 22, wherein the output heat of the defrosting heat source load 22 is 0-200W;
s9, if not, continuously detecting the temperature of the outer pipe on the outer pipe wall of the heat exchange pipe 11 by the temperature sensor within time T △ T2, wherein the T is 1-10 min;
s10, obtaining the temperature of an outer pipe △ T2;
s11, judging whether the temperature of the outer pipe is △ T2 and is not more than a set temperature B, wherein the temperature B is-10-0 ℃;
s12, if yes, closing the first control switch 224, the second control switch 225 and the third control switch 226; the defrosting heat source load 22 outputs heat, enters an intelligent heating defrosting state, and operates normally; the heating output of the defrosting heat source load is the heating output of the first heat exchange tube, the second heat exchange tube and the third heat exchange tube; the defrosting heat source load 22 outputs heat of 0-600W;
s13, if not, the system is shut down at any time, and when the temperature on the outer pipe wall of the heat exchange pipe 11 is detected to be more than or equal to 5 ℃, the heating defroster 2 is closed.
In the system for defrosting by utilizing the solar photovoltaic intelligence, by utilizing the solar photovoltaic intelligence defrosting method, reasonably controls the heating defroster 2, converts the solar light source into electric energy by using the photovoltaic cell panel 3, provides the electric energy for the heating defroster 2, assists the heating defroster 2 to carry out defrosting control, when the outdoor evaporator 1 is frosted and iced, the temperature of the outer pipe on the outer pipe wall of the heat exchange pipe 11 is detected by the temperature sensor, judging according to the temperature change of the outer tube and the frosting heat exchange condition, if judging that the heat exchange tube 11 is frosted, starting the storage battery 23 to discharge, the defrosting heat source load 22 is controlled by the defrosting controller 21 to work and output heat, so that the frosting on the outdoor evaporator 1 can be removed quickly, the frosting of the outdoor evaporator 1 is avoided, thereby achieving the purposes of no frost formation, automatic judgment, intelligent defrosting and continuous heat supply of the outdoor evaporator 1 in long-term operation.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the protection scope of the present application, and although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.
Claims (11)
1. The utility model provides an utilize system of solar photovoltaic intelligence defrosting, is applied to on the outdoor evaporimeter, the outdoor evaporimeter includes the heat exchange tube, its characterized in that, utilize system of solar photovoltaic intelligence defrosting to include:
the temperature sensor is arranged on the heat exchange tube and is used for detecting the temperature of the outer tube on the outer tube wall of the heat exchange tube;
the heating defroster is arranged on the outdoor evaporator, is electrically connected with the temperature sensor and is used for removing frost on the heat exchange tube;
a photovoltaic cell panel electrically connected to the heating defroster.
2. The system for defrosting using solar photovoltaic intelligence of claim 1 wherein the heating defroster comprises:
a defrosting controller electrically connected to the photovoltaic cell panel and to the temperature sensor;
a defrosting heat source load electrically connected to the defrosting controller;
and the storage battery is electrically connected with the controller.
3. The system for defrosting using solar photovoltaic intelligence of claim 2 wherein the outdoor evaporator further comprises a plurality of cooling fins; the plurality of radiating fins are arranged and distributed along the same direction; the heat exchange tubes penetrate through the plurality of radiating fins and are distributed along the length direction of the radiating fins.
4. The system for defrosting intelligently using solar photovoltaic according to claim 3, wherein the defrosting heat source load comprises a first heating tube, a second heating tube, a third heating tube, a first control switch, a second control switch and a third control switch;
the first heating pipe, the second heating pipe and the third heating pipe penetrate through the plurality of radiating fins and are distributed along the length direction of the radiating fins;
the first control switch is arranged on the first heating pipe and is used for controlling the on-off of the first heating pipe; the second control switch is arranged on the second heating tube and is used for controlling the second heating tube to be switched on and off; the third control switch is arranged on the third heating tube and is used for controlling the on-off of the third heating tube.
5. The system according to claim 1, wherein the second, first and third heat pipes are distributed from top to bottom along the length of the heat sink.
6. The system according to claim 1, wherein the arrangement area of the second and third heat pipes along the length direction of the heat sink is equal; the area of the pipeline arrangement of the first heating pipe along the length direction of the radiating fin is larger than that of the second heating pipe.
7. An air conditioner, characterized in that, comprising the system for defrosting by solar photovoltaic intelligence according to any one of claims 1 to 6.
8. A solar photovoltaic intelligent defrosting method is characterized in that in a heating mode, during the running period of a compressor and an inner fan, the solar photovoltaic intelligent defrosting system is used for realizing the solar photovoltaic intelligent defrosting method, the method judges according to the temperature change of an outer pipe, a storage battery is started to discharge electricity, and the heating output quantity of a defrosting heat source load is controlled by a defrosting controller to defrost.
9. The method for defrosting using solar photovoltaic intelligence of claim 8, wherein the specific steps of judging according to the temperature change of the outer tube, starting the storage battery to discharge, and controlling the heating output of the defrosting heat source load by the defrosting controller to defrost are as follows:
s1, normally operating a system;
s2, continuously detecting the temperature △ T of an outer pipe on the outer pipe wall of the heat exchange pipe by a temperature sensor within time T;
s3, obtaining the temperature of an outer tube of △ T, if the temperature of the outer tube of △ T is less than or equal to 3 ℃, starting a heating defroster, and immediately starting a storage battery to discharge to control the defrosting heat source load to work;
s4, continuously detecting the temperature of an outer pipe on the outer pipe wall of the heat exchange pipe by the temperature sensor within time T △ T1;
s5, obtaining the temperature of the outer pipe △ T1;
s6, if the temperature of the outer pipe is △ T1 and is more than or equal to 5 ℃, the heating defroster is closed;
s7, judging whether the temperature of the outer pipe △ T1 is larger than or equal to a set temperature A, wherein the temperature A is 0-3 ℃;
s8, if yes, closing the first control switch, and disconnecting the second control switch and the third control switch; the defrosting heat source load outputs heat, enters an intelligent heating defrosting state and operates normally;
s9, if not, continuously detecting the temperature △ T2 of the outer pipe on the outer pipe wall of the heat exchange pipe by the temperature sensor within the time T;
s10, obtaining the temperature of an outer pipe △ T2;
s11, judging whether the temperature of the outer pipe is △ T2 and is not more than a set temperature B, wherein the temperature B is-10-0 ℃;
s12, if yes, closing the first control switch, the second control switch and the third control switch; the defrosting heat source load outputs heat, enters an intelligent heating defrosting state and operates normally;
s13, if not, stopping the system at any time, and closing the heating defroster when the temperature on the outer pipe wall of the heat exchange pipe is detected to be more than or equal to 5 ℃.
10. The method for defrosting using solar photovoltaic intelligence as claimed in claim 9, wherein in the steps of S2, S4 and S9, t is 1min to 10 min.
11. The method for defrosting using solar photovoltaic intelligence as claimed in claim 9, wherein in the step S8, the defrosting heat source load outputs heat of 0W to 200W; in step S12, the defrosting heat source load outputs heat of 0W to 600W.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883660A (en) * | 2020-07-02 | 2022-01-04 | 青岛海尔空调电子有限公司 | Heat pump type air conditioning system and control method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201583074U (en) * | 2009-12-17 | 2010-09-15 | 张明亮 | Solar air-source hot pump for storing electricity and defrosting |
| WO2011148413A1 (en) * | 2010-05-26 | 2011-12-01 | 三菱電機株式会社 | Refrigeration and air-conditioning device |
| CN202171297U (en) * | 2011-07-27 | 2012-03-21 | 苏州三星电子有限公司 | Heat-pump air conditioning system |
| CN108106054A (en) * | 2017-12-15 | 2018-06-01 | 大连圣鼎工业装备有限公司 | A kind of net for air-source heat pump units using energy-saving defrosting device |
| CN208205329U (en) * | 2018-03-24 | 2018-12-07 | 沈阳日上机电工程技术有限公司 | A kind of defrosting control system of multi-evaporator inverter air conditioner system |
| CN110542149A (en) * | 2019-08-24 | 2019-12-06 | 珠海格力电器股份有限公司 | defrosting control method for air conditioning system and air conditioning system |
-
2019
- 2019-12-18 CN CN201911307133.2A patent/CN111089394A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201583074U (en) * | 2009-12-17 | 2010-09-15 | 张明亮 | Solar air-source hot pump for storing electricity and defrosting |
| WO2011148413A1 (en) * | 2010-05-26 | 2011-12-01 | 三菱電機株式会社 | Refrigeration and air-conditioning device |
| CN202171297U (en) * | 2011-07-27 | 2012-03-21 | 苏州三星电子有限公司 | Heat-pump air conditioning system |
| CN108106054A (en) * | 2017-12-15 | 2018-06-01 | 大连圣鼎工业装备有限公司 | A kind of net for air-source heat pump units using energy-saving defrosting device |
| CN208205329U (en) * | 2018-03-24 | 2018-12-07 | 沈阳日上机电工程技术有限公司 | A kind of defrosting control system of multi-evaporator inverter air conditioner system |
| CN110542149A (en) * | 2019-08-24 | 2019-12-06 | 珠海格力电器股份有限公司 | defrosting control method for air conditioning system and air conditioning system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883660A (en) * | 2020-07-02 | 2022-01-04 | 青岛海尔空调电子有限公司 | Heat pump type air conditioning system and control method thereof |
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