CN114927984B - Outdoor ring main unit box based on photovoltaic and photo-thermal integrated method for cooling and dehumidifying - Google Patents
Outdoor ring main unit box based on photovoltaic and photo-thermal integrated method for cooling and dehumidifyingInfo
- Publication number
- CN114927984B CN114927984B CN202210396259.7A CN202210396259A CN114927984B CN 114927984 B CN114927984 B CN 114927984B CN 202210396259 A CN202210396259 A CN 202210396259A CN 114927984 B CN114927984 B CN 114927984B
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- Prior art keywords
- enclosure
- photovoltaic
- air
- mounting beam
- lower mounting
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
- F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/38—Energy storage means, e.g. batteries, structurally associated with PV modules
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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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
本发明涉及一种基于光伏光热一体化方法降温除湿的户外环网柜箱体，包括底座、设置在底座上的箱体以及设置在箱体顶部的顶盖，箱体包括箱体框架以及安装在箱体框架的箱体正门和若干箱体侧门，箱体正门的中部按照从外至内的顺序依次密封安装有透明板和光伏板，透明板与光伏板间隔设置使得透明板与光伏板之间形成壁室腔，箱体正门在光伏板的下方设有与壁室腔下端连通的第一出气口，箱体正门在透明板的上方设有与壁室腔上端连通的第二出气口，箱体侧门上设有进气口。本发明在光照条件下使得箱体与外界环境之间形成开放式常态化空气循环，无需额外供能实现对环网柜的降温除湿，其还能够在环网柜降温除湿过程的同时提高光伏板发电效率，节能环保。
This invention relates to an outdoor ring main unit enclosure for cooling and dehumidification based on a photovoltaic-thermal integrated method. It includes a base, an enclosure mounted on the base, and a top cover. The enclosure includes a frame, a front door mounted on the frame, and several side doors. A transparent panel and a photovoltaic panel are sequentially and sealed in the center of the front door from the outside in, with the transparent panel and photovoltaic panel spaced apart to form a walled cavity. The front door has a first air outlet below the photovoltaic panel, communicating with the lower end of the walled cavity, and a second air outlet above the transparent panel, communicating with the upper end of the walled cavity. Air inlets are located on the side doors. This invention enables an open, continuous air circulation between the enclosure and the external environment under sunlight conditions, achieving cooling and dehumidification of the ring main unit without additional energy supply. It also improves the power generation efficiency of the photovoltaic panels during the cooling and dehumidification process, resulting in energy conservation and environmental protection.
Description
Technical Field
The invention relates to the technical field of power transmission and distribution electrical equipment of a power grid system, in particular to an outdoor ring main unit box body based on a photovoltaic and photo-thermal integrated method for cooling and dehumidifying.
Background
The ring main unit is a group of electric equipment (high-voltage switch equipment) which is arranged in a metal or nonmetal insulating cabinet body or is made into an assembled spacing ring main power supply unit, and is widely used by distribution stations and box-type substations of load centers such as civil and industrial application. Due to usage scenario and environmental limitations, the ring main unit needs to be placed outdoors for use. The general outdoor ring main unit comprises an independent box body, and the ring main unit placed outdoors has the following problems due to environmental reasons that the temperature in the box body is high, the air flow in the box body is small, the humid air is difficult to discharge, and the environment which is favorable for condensation is easily formed in the box body. The ring main unit can generate heat when the power-on equipment is powered on, when the current is large, the forced heat dissipation mode is needed to cool, the insulating property of the ring main unit can be reduced by humid air in the box body, the probability of accidents of the ring main unit is increased, and the drying property in the box body is ensured especially for the solid ring main unit, so that the drying equipment is needed to dry the inside of the box body. Looped netowrk cabinet in the present market is mainly cooled down the inside of box through external fan or air conditioner, and the inside air of box is moist at present mostly uses external power heating device to dry.
Disclosure of Invention
The invention innovatively provides an outdoor ring main unit box body based on cooling and dehumidifying by a photovoltaic and photo-thermal integrated method from the standpoint of enabling the air in the outdoor ring main unit to circulate with the external environment, and the invention can utilize a wall chamber cavity formed between a transparent plate and a photovoltaic plate to form an open type normalized air automatic circulation between the ring main unit box body and the external environment by the photovoltaic and photo-thermal integrated method, thereby realizing the purpose of cooling and dehumidifying the outdoor ring main unit by the circulation, and can provide partial electricity sources for electric appliances in the box body by the photovoltaic plate so as to achieve the purposes of energy conservation and environmental protection.
In order to solve the problems in the prior art, the outdoor ring main unit box based on the photovoltaic and photo-thermal integrated method for cooling and dehumidifying comprises a base, a box body arranged on the base and a top cover arranged at the top of the box body, wherein the box body comprises a box body frame, a box body main door and a plurality of box body side doors, the box body main door is installed on the box body frame, a transparent plate and a photovoltaic plate are sequentially and hermetically installed in the middle of the box body main door in an outward-inward sequence, the transparent plate and the photovoltaic plate are arranged at intervals to form a wall chamber cavity between the transparent plate and the photovoltaic plate, a first air outlet communicated with the lower end of the wall chamber cavity is arranged below the photovoltaic plate, a second air outlet communicated with the upper end of the wall chamber cavity is arranged above the transparent plate, and an air inlet is arranged on the box body side door.
Furthermore, the outdoor ring main unit box based on the photovoltaic and photo-thermal integrated method for cooling and dehumidifying is provided with the heat insulation board, wherein the middle part of the back surface of the photovoltaic board is inwards sunken, and the front surface of the heat insulation board is propped against the back surface of the photovoltaic board to form an air heat insulation cavity between the heat insulation board and the photovoltaic board.
Furthermore, the outdoor ring main unit box based on the photovoltaic and photo-thermal integrated method for cooling and dehumidifying is provided with a first upper mounting cross beam and a first lower mounting cross beam which are respectively and correspondingly connected with the inner side of a main door of the box along the up-down direction, and a photovoltaic plate and a thermal insulation plate are respectively and fixedly connected between the first upper mounting cross beam and the first lower mounting cross beam.
Furthermore, the outdoor ring main unit box based on the photovoltaic and photo-thermal integrated method for cooling and dehumidifying is characterized in that an upper baffle plate extending downwards is arranged at one side, close to a photovoltaic panel, of the lower end of the first upper mounting cross beam, the back surface of the upper baffle plate is propped against the front surface of the photovoltaic panel, an upper inclined surface gradually far away from the second air outlet from bottom to top is arranged at the upper end of the first upper mounting cross beam, a lower baffle plate extending upwards is arranged at one side, close to the photovoltaic panel, of the upper end of the first lower mounting cross beam, the back surface of the lower baffle plate is propped against the front surface of the photovoltaic panel, and a lower inclined surface gradually far away from the first air outlet from bottom to top is arranged at the lower end of the first lower mounting cross beam.
Furthermore, the outdoor ring main unit box based on the photovoltaic and photo-thermal integrated method for cooling and dehumidifying is provided with a second upper mounting cross beam and a second lower mounting cross beam which are respectively and fixedly connected to the outer side of a main door of the box along the upper and lower directions, an upper mounting groove arranged along the length direction of the second upper mounting cross beam is formed in the lower end of the second upper mounting cross beam, a lower mounting groove arranged along the length direction of the second lower mounting cross beam is formed in the upper end of the second lower mounting cross beam, and a transparent plate is embedded in the upper mounting groove and the lower mounting groove corresponding to the second upper mounting cross beam and the second lower mounting cross beam.
Furthermore, the outdoor ring main unit box based on the photovoltaic and photo-thermal integrated method for cooling and dehumidifying is disclosed, wherein the back surface of the second lower mounting cross beam is flush with the back surface of the first lower mounting cross beam, the cross section of the second lower mounting cross beam is L-shaped, and the first lower mounting cross beam is positioned above the second lower mounting cross beam, so that the side walls of the adjacent first lower mounting cross beam and second lower mounting cross beam form the first air outlet.
Furthermore, the outdoor ring main unit box body based on the photovoltaic and photo-thermal integrated method for cooling and dehumidifying is provided with the first convex beam extending towards the inside of the box body, the second convex beam extending towards the inside of the box body is arranged on the second lower mounting beam, and an outlet dust screen is arranged between the first convex beam and the second convex beam.
Furthermore, the outdoor ring main unit box based on the photovoltaic photo-thermal integrated method for cooling and dehumidifying is characterized in that a plurality of air outlet holes are arranged at the first air outlet, the air outlet holes are in a strip shape, strip-shaped air deflectors are arranged at the upper ends of the air outlet holes, each air deflector comprises a connecting part, a shielding part and an extending part, one end of the connecting part is fixed on the outer side wall of a main door of the box, the other end of the connecting part is connected with the shielding part, the shielding part is blocked at the position corresponding to the air outlet holes, the extending parts are smoothly transited by the shielding parts and then extend downwards, and the outer surfaces of the extending parts of the air deflectors are all in the same plane.
Furthermore, the outdoor ring main unit box based on the photovoltaic photo-thermal integrated method for cooling and dehumidifying is characterized in that an air inlet is provided with an air inlet dustproof net, an air inlet heater is arranged at the air inlet dustproof net, an air pump is arranged on a box main door or a box side door, an air pumping end of the air pump is communicated with the inside of the box, an air exhausting end of the air pump is communicated with the outside atmosphere, a first temperature sensor and a first humidity sensor are arranged on the outer side of the box, a second temperature sensor and a second humidity sensor are arranged on the inner side of the box, a storage battery, an internal heater and an automatic controller are further arranged in the box, the storage battery is electrically connected with a photovoltaic panel, and the storage battery is respectively connected with the air inlet heater, the air pumping pump, the first temperature sensor, the first humidity sensor, the second temperature sensor, the second humidity sensor, the internal heater and the automatic controller, and the automatic controller.
Furthermore, the outdoor ring main unit box body based on the photovoltaic and photo-thermal integrated method for cooling and dehumidifying is provided with the base, wherein the base supports the box body, and the base is provided with the plurality of through holes which are in linear arrangement.
Compared with the prior art, the outdoor ring main unit box based on the photovoltaic and photo-thermal integrated method for cooling and dehumidifying has the advantages that the transparent plate, the wall chamber and the photovoltaic plate form a closed sunning structure, air in the wall chamber can be quickly heated through the heat absorption layer on the surface of the photovoltaic plate, hot air rises, cold air in the box body is quickly supplemented into the wall chamber, so that open normalized air flow circulation is formed among the wall chamber, the box body and the atmosphere, the cooling and dehumidifying effects of the ring main unit box are good, the circulating operation is promoted by sunlight, energy is saved, environmental protection is achieved, and the normalized operation can be carried out, and the purpose of cooling and dehumidifying without additional energy under the illumination condition is achieved. And cold air in the box body is quickly supplemented and enters the wall chamber cavity and simultaneously cools the surface of the photovoltaic panel, so that the power generation of the photovoltaic panel is promoted, the power generation efficiency of the photovoltaic panel is improved, the safe operation of the ring main unit is greatly promoted, and electric energy is saved. Compared with the prior art, the invention has the advantages of more energy saving and environmental protection, stronger cooling and dehumidifying capability and ensures the safe operation of the ring main unit.
Drawings
FIG. 1 is a schematic diagram of a side view structure of an outdoor ring main unit box body based on a photovoltaic photo-thermal integrated method for cooling and dehumidifying;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is an enlarged view of part B of FIG. 2;
FIG. 4 is a schematic diagram of a front view structure of an outdoor ring main unit box body based on a photovoltaic and photo-thermal integrated method for cooling and dehumidifying;
Fig. 5 is a schematic diagram of a connection structure of each electrical element in an outdoor ring main unit box body based on a photovoltaic photo-thermal integrated method for cooling and dehumidifying.
Detailed Description
In order to make the effects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the accompanying drawings and detailed description. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the embodiment of the outdoor ring main unit box based on the photovoltaic and photo-thermal integrated method for cooling and dehumidifying specifically comprises a base 1, a box 2 arranged on the base 1, and a top cover 3 arranged on the top of the box 2, wherein the box 2 comprises a box frame, a box main door 21 and a plurality of box side doors 22, wherein the box main door 21 is arranged on the box frame. As an improvement, the transparent plate 4 and the photovoltaic plate 5 are sequentially and hermetically arranged in the middle of the box main door 21 in sequence from outside to inside, the transparent plate 4 and the photovoltaic plate 5 are arranged at intervals to form a wall chamber 41 between the transparent plate 4 and the photovoltaic plate 5, a first air outlet 23 communicated with the lower end of the wall chamber 41 is arranged below the photovoltaic plate 5 in the box main door 21, a second air outlet 24 communicated with the upper end of the wall chamber 41 is arranged above the transparent plate 4 in the box main door 21, and an air inlet 25 is arranged on the box side door 22. The photovoltaic panel 5 is used for providing electric energy for electric components (such as an air inlet heater 252, an air pump 8, a first temperature sensor 91, a first humidity sensor 92, a second temperature sensor 93, a second humidity sensor 94, an internal heater 96 and an automatic controller 97) in the box 2, the surface of the photovoltaic panel 5 is heated to heat air in the wall chamber 41 and discharge the heated air into the outside air through the second air outlet 24, and then the outside air enters the box 2 through the air inlet 25 and is supplemented into the wall chamber 41 through the first air outlet 23 so as to form open air circulation. In order to avoid direct contact between the box body 2 and the ground surface and reduce the influence of geothermal heat or moisture regain, the base 1 is used for supporting the box body 2 to a certain height, a plurality of through holes 11 are formed in the base 1, and the through holes 11 are linearly arranged.
In the in-service use, when the photovoltaic panel 5 on the box front door 21 receives solar rays, when photovoltaic effect occurs, the surface temperature of the photovoltaic panel 5 rises, thereby heating the air in the wall chamber 41, the air can flow upwards after rising, hot air flows out of the box 2 to the outside through the second air outlet 24, after the air in the wall chamber 41 is reduced, cold air in the box 2 can supplement and enter the wall chamber 41, the cold air absorbs heat on the surface of the photovoltaic panel 5, the power generation efficiency of the photovoltaic panel 5 can be promoted, meanwhile, the pressure in the box 2 is reduced, external air is forced to enter the box 2 through the air inlet 25, therefore, the box 2 forms an open air circulation due to the thermal reaction of the sun, and the flowing air can take away the heat generated during the operation of the ring network cabinet in the box 2, and can reduce the air sunlight humidity in the box, thereby ensuring the operation of the ring network cabinet in a safe and stable environment, the purpose of dehumidification of the ring network cabinet can be realized by utilizing the circulation, the purpose of cooling the ring network cabinet can be realized, the purpose of cooling and the environment-friendly and energy-saving operation can be realized, and the purpose of cooling can be realized under the condition of cooling and normal condition of energy-saving operation.
As shown in fig. 1, since the temperature of the air in the wall chamber 41 is high relative to the temperature in the tank under irradiation of sunlight, the normal open air circulation is destroyed in order to prevent heat generated in the wall chamber 41 from being conducted to the inside of the tank. The box front door 21 is also provided with a heat insulation plate 6, the middle part of the back surface of the photovoltaic panel 5 is inwards sunken, and the front surface of the heat insulation plate 6 is propped against the back surface of the photovoltaic panel 5, so that an air heat insulation cavity 51 is formed between the heat insulation plate 6 and the photovoltaic panel 5. The heat insulation plate 6 can prevent heat generated in the wall chamber cavity 41 from being conducted into the box body, and the air heat insulation cavity 51 can serve as an intermediate transition space, so that part of heat can be absorbed, and a double heat insulation structure can be formed with the heat insulation plate 6, and the heat insulation effect is further improved.
On the basis of the above embodiment, as shown in fig. 2 and fig. 3 in combination, the photovoltaic panel 5 and the heat insulation board 6 are specifically fixed in this embodiment by fixedly connecting a first upper mounting beam 26 and a first lower mounting beam 27 respectively on the inner side of the front door 21 of the box in the up-down direction, and fixedly connecting the photovoltaic panel 5 and the heat insulation board 6 between the first upper mounting beam 26 and the first lower mounting beam 27. The lower end of the first upper mounting beam 26 is provided with an upper baffle 261 which extends downwards near one side of the photovoltaic panel 5, the back surface of the upper baffle 261 abuts against the front surface of the photovoltaic panel 5, the upper end of the first lower mounting beam 27 is provided with a lower baffle 271 which extends upwards near one side of the photovoltaic panel 5, the back surface of the lower baffle 271 abuts against the front surface of the photovoltaic panel 5, the photovoltaic panel 5 and the heat insulation board 6 can be limited through the cooperation of the upper baffle 261 and the lower baffle 271, and the photovoltaic panel 5 is prevented from falling into the wall chamber 41 to influence the operation of open air circulation. In order to further improve the fluidity of the open air circulation, an upper inclined surface 262 gradually far from the second air outlet 24 from bottom to top is arranged at the upper end of the first upper mounting cross beam 26, and a lower inclined surface 272 gradually far from the first air outlet 23 from bottom to top is arranged at the lower end of the first lower mounting cross beam 27, so that an open structure is formed at the upper end and the lower end of the wall chamber cavity 41 through the arrangement, the resistance of air flow is reduced, and the fluidity of the open air circulation is improved.
On the basis of the above embodiment, as shown in fig. 2 and fig. 3, the transparent plate 4 is specifically fixed in this embodiment by fixedly connecting a second upper mounting beam 28 and a second lower mounting beam 29 respectively on the outer side of the front door 21 of the box body along the up-down direction, an upper mounting groove 281 arranged along the length direction of the second upper mounting beam 28 is arranged at the lower end of the second upper mounting beam 28, and a lower mounting groove 291 arranged along the length direction of the second lower mounting beam 29 is arranged at the upper end of the second lower mounting beam 29, so that the transparent plate 4 is embedded in the upper mounting groove 281 and the lower mounting groove 291 corresponding to the second upper mounting beam 28 and the second lower mounting beam 29. The transparent plate 4 is firmly fixed in the upper mounting groove 281 and the lower mounting groove 291, so that the transparent plate cannot fall off, the operation of the open air circulation cannot be influenced, and the operation stability of the open air circulation is improved. It should be noted that the transparent plate 4 may be made of tempered glass, acrylic plastic plate, etc., and it is needless to say that other materials are not excluded.
As shown in fig. 3, in order to make the structure more compact and stable, in this embodiment, the back surface of the second lower mounting beam 29 is flush with the back surface of the first lower mounting beam 27, and the cross-sectional shape of the second lower mounting beam 29 is designed to be L-shaped, so that the position of the first lower mounting beam 27 is located above the second lower mounting beam 29, so that the side walls of the adjacent first lower mounting beam 27 and second lower mounting beam 29 form the first air outlet 23, and by the above arrangement, the first air outlet 23 can be prevented from being independently opened on the box front door 21, and then the opening operation is reduced, the integral integrity of the components is ensured, and the structural stability and the service life are improved.
As shown in fig. 1 and fig. 3, in order to ensure the cleaning of the interior of the case, in this embodiment, a first protruding beam 273 extending toward the interior of the case 2 is provided on the first lower mounting beam 27, a second protruding beam 292 extending toward the interior of the case 2 is provided on the second lower mounting beam 29, an outlet dust screen 7 is installed between the first protruding beam 273 and the second protruding beam 292, and an inlet dust screen 251 is also installed at the inlet 25. Through the arrangement, outside air can enter the box body only by filtering through the air inlet dustproof net 251 or the outlet dustproof net 7, so that particles such as outside dust are prevented from entering the box body, the cleanliness of the inside of the ring main unit is guaranteed, and the safe operation of the ring main unit is further guaranteed.
As shown in fig. 2, in order to influence the operation effect of the open air circulation due to the unsmooth air discharge in the case 2 or the reverse flow of the external air caused by the strong wind, etc. In this embodiment, a plurality of air outlet holes 231 are disposed at the second air outlet 24 at intervals, the air outlet holes 231 are designed to be long, and a long air deflector 232 is disposed at the upper end of each air outlet hole 231. And each air deflector 232 includes a connection 2321, a shroud 2322, and an extension 2323. One end of the connecting portion 2321 is fixed on the outer side wall of the box front door 21, the other end of the connecting portion 2321 is connected with the shielding portion 2322, the shielding portion 2322 is blocked at the position corresponding to the air outlet 231, the influence of backflow in windy weather can be reduced by the shielding portion 2322, the extending portion 2323 extends downwards after being smoothly transited by the shielding portion 2322, the outer surface of the extending portion 2323 of each air deflector 232 is located in the same plane, and air discharged from each air outlet 231 by adopting the structure cannot be received by the air outlet 231 located above, so that the air discharging process of each air outlet 231 is smoother, and the open air circulation capacity is improved.
In order to improve the overall adaptability of the device, extreme conditions without sunlight irradiation are handled, as shown in fig. 1 and 4 and fig. 5, in this embodiment, an air inlet heater 252 is installed at an air inlet dust screen 251, and the air inlet heater 252 is used for starting when the humidity of the external environment is too high, so as to avoid the influence of the excessive humidity in the box body on the safe operation of the ring main unit. Install aspiration pump 8 on box front 21 or box side door 22, the exhaust end and the inside intercommunication of box 2 of aspiration pump 8, the exhaust end and the external atmosphere intercommunication of aspiration pump 8, aspiration pump 8 are used for starting when external environment temperature is too big or the internal temperature of box is too big, avoid the internal temperature of box to be too high to influence looped netowrk cabinet safe operation. The first temperature sensor 91 and the first humidity sensor 92 are installed on the outer side of the case 2, the first temperature sensor 91 is used for detecting the temperature of the external environment, and the first humidity sensor 92 is used for detecting the humidity of the external environment. The second temperature sensor 93 and the second humidity sensor 94 are installed on the inner side of the case 2, the second temperature sensor 93 is used for detecting the temperature in the case, and the second humidity sensor 94 is used for detecting the humidity in the case. Still install battery 95 and internal heater 96 in the box 2, battery 95 is connected with photovoltaic board 5 electricity, and battery 95 is used for storing the electric energy that photovoltaic board 5 produced, and internal heater 96 is used for starting when the humidity is too big in the box, avoids the too big influence looped netowrk cabinet safe operation of humidity in the box.
Based on the above embodiments, in order to improve the automation level of the system and achieve fine control over the whole system, the present embodiment further includes an automatic controller 97, and of course, those skilled in the art will understand that the automatic controller 97 may use a DSP (DIGITAL SIGNAL Processing) digital signal processor, an FPGA (Field-Programmable GATE ARRAY) Field Programmable gate array, a MCU (Microcontroller Unit) system board, a SoC (system on a chip) system board, or a PLC (Programmable Logic Controller) minimum system including I/O. The automatic control operation of the system can be realized according to the detection data by presetting control logic. The battery 95 is connected to the intake heater 252, the air pump 8, the first temperature sensor 91, the first humidity sensor 92, the second temperature sensor 93, the second humidity sensor 94, the internal heater 96, and the automatic controller 97 via the photovoltaic inverter 98, and the automatic controller 97 is connected to the intake heater 252, the air pump 8, the first temperature sensor 91, the first humidity sensor 92, the second temperature sensor 93, the second humidity sensor 94, and the internal heater 96, respectively.
In this embodiment, add air inlet heater 252, internal heater 96 and aspiration pump 8 and guaranteed looped netowrk cabinet operational environment's security and stability to aspiration pump 8 makes the cooling dehumidification activity go on through stable open air cycle, avoids producing too big air current disturbance harm and low-efficient cooling dehumidification effect in the box. The first temperature sensor 91, the first humidity sensor 92, the second temperature sensor 93 and the second humidity sensor 94 are used for monitoring the temperature and humidity inside and outside the box body, and the intelligent monitoring control system is formed by combining the automatic controller 97, so that the intelligent effect is achieved, the human participation is reduced, the purpose of no need of human maintenance is achieved, and the safety of the ring main unit safe operation is stronger by the intelligent monitoring control system. And the photovoltaic photo-thermal integration improves the power generation efficiency of the photovoltaic panel and reduces the dependence of power utilization components on a power grid.
The automatic control operation process is as follows:
when the first temperature sensor 91 detects that the external environment temperature is greater than the limit value, the air pump 8 is started to increase the flow intensity of the air in the box body and the external air, so that potential safety hazards caused by overhigh temperature in the box body are avoided;
when the first humidity sensor 92 detects that the ambient humidity is greater than the limit value, the air inlet heater 252 is started, so that the humidity of air in the box body is reduced, and potential safety hazards caused by overlarge humidity in the box body are avoided;
When the second temperature sensor 93 detects that the temperature in the box body is greater than the limit value, the air pump 8 is started to increase the flow intensity of the air in the box body and the outside air, so that potential safety hazards caused by overhigh temperature in the box body are avoided;
When the second humidity sensor 94 detects that the humidity in the tank is greater than the limit value, the internal heater 96 and the air pump 8 are simultaneously started, so that the air humidity in the tank is maintained within a safe range.
In the description of the present invention, it should be understood that the term "front" appearing herein refers to the side facing the outside of the case, and the term "rear" refers to the side facing the inside of the case, and that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. If a directional instruction is involved in the embodiment of the present invention, the directional instruction is merely used to explain the relative positional relationship, movement condition, etc. of the components by the bolts in a specific posture, and if the specific posture is changed, the directional instruction is changed accordingly.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, or connected, directly connected, or indirectly connected through an intervening medium, in communication between two elements, or in an interaction relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
The above embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the claimed invention, and various modifications made by those skilled in the art according to the technical solution of the present invention should fall within the scope of the present invention as defined in the claims.
Claims (7)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210396259.7A CN114927984B (en) | 2022-04-15 | 2022-04-15 | Outdoor ring main unit box based on photovoltaic and photo-thermal integrated method for cooling and dehumidifying |
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| CN202210396259.7A CN114927984B (en) | 2022-04-15 | 2022-04-15 | Outdoor ring main unit box based on photovoltaic and photo-thermal integrated method for cooling and dehumidifying |
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| CN114927984A CN114927984A (en) | 2022-08-19 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181453A (en) * | 2017-06-03 | 2017-09-19 | 北京工业大学 | A kind of Wind-cooling type photovoltaic and photothermal integral system |
| CN215870457U (en) * | 2021-09-15 | 2022-02-18 | 美仪电气有限公司 | Ring main unit with air drying device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104378062A (en) * | 2014-09-26 | 2015-02-25 | 西安交通大学 | Method for improving electricity generating efficiency of solar photovoltaic cell |
| CN104333324B (en) * | 2014-11-13 | 2016-08-17 | 贵州新能绿色能源有限公司 | A kind of photovoltaic and photothermal solar integration energy conservation component |
| CN206041236U (en) * | 2016-08-26 | 2017-03-22 | 霍立克电气有限公司 | Outdoor looped netowrk cabinet |
| CN106848888A (en) * | 2016-12-15 | 2017-06-13 | 国网北京市电力公司 | Ring main unit |
| CN208753803U (en) * | 2018-08-31 | 2019-04-16 | 贵州诚安达电气有限公司 | A kind of heat radiating type outdoor electricity distribution cabinet |
| CN210224707U (en) * | 2019-09-05 | 2020-03-31 | 北京金时佰德技术有限公司 | Novel energy-saving distribution box for outdoor use |
| FR3105425A1 (en) * | 2019-12-18 | 2021-06-25 | Cnotreair | Energy-independent air quality control device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181453A (en) * | 2017-06-03 | 2017-09-19 | 北京工业大学 | A kind of Wind-cooling type photovoltaic and photothermal integral system |
| CN215870457U (en) * | 2021-09-15 | 2022-02-18 | 美仪电气有限公司 | Ring main unit with air drying device |
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