CN111969423B - Ring main unit dehumidification system based on wind-solar hybrid self-energy supply - Google Patents
Ring main unit dehumidification system based on wind-solar hybrid self-energy supply Download PDFInfo
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- CN111969423B CN111969423B CN202010664754.2A CN202010664754A CN111969423B CN 111969423 B CN111969423 B CN 111969423B CN 202010664754 A CN202010664754 A CN 202010664754A CN 111969423 B CN111969423 B CN 111969423B
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Images
Classifications
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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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
- A62C35/10—Containers destroyed or opened by flames or heat
-
- 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
-
- 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
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
- H02S10/10—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
- H02S10/12—Hybrid wind-PV energy systems
-
- 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
Abstract
The utility model provides a looped netowrk cabinet dehumidification system based on complementary self-energy supply of scene, including power module, a controller, monitoring module and dehumidification module, power module is the controller, monitoring module and dehumidification module power supply, monitoring module and dehumidification module all are connected with the controller, the dehumidification module includes the semiconductor refrigeration piece, fan and radiator, the semiconductor refrigeration piece includes hot junction and cold junction, the radiator is connected with the hot junction, the fan improves the radiator radiating efficiency, monitoring module monitors the air humidity in the looped netowrk cabinet, the input current of controller control semiconductor refrigeration piece and fan. The substantial effects of the invention are as follows: 1) the technical problem that the performance and the service life of the power equipment are reduced due to overhigh humidity in the ring main unit is solved; 2) the potential safety hazard problems of ignition of the ring main unit and the like are solved; 3) the problem of looped netowrk cabinet dehumidification system power supply difficulty is solved.
Description
Technical Field
The invention relates to the technical field of electrical safety of power systems, in particular to a wind-solar complementary self-energy supply based ring main unit dehumidification system.
Background
Based on the product requirements of environmental friendliness, no pollution, low noise, safety and reliability and the background of rapid development of thermoelectric materials, a novel refrigeration mode, namely semiconductor refrigeration, which takes the peltier effect as the main theoretical basis is gradually paid attention to and researched by people and gradually enters the daily life of people. The semiconductor refrigeration has the advantages that: (1) the noise is small; (2) the installation is convenient; (3) the shape can be changed according to the requirement, and the device can be used in places with special requirements, such as the temperature control aspect of miniature equipment or devices, and is very convenient; (4) no chemical refrigerant is used, and the environment is green and pollution-free; (5) the semiconductor refrigeration speed is fast and the reaction is fast.
The influence of humid environment to electrical equipment safe operation is very big, and moreover, humid air is favorable to the growth of mould, and certain temperature and humidity are the good condition that mould grows, and contain a large amount of moisture in the mould, can make power equipment's insulating properties reduce by a wide margin, and to some porous insulating material, the mould root can also go deep into the inside of material, causes the insulation breakdown. Moreover, the moist air will make electrically conductive metal, magnetic conduction silicon steel sheet and metal casing in the power equipment produce the corrosion, and general looped netowrk cabinet exists because the performance and the life of power equipment that moist leads to reduce, has the technical problem of potential safety hazard. And a plurality of ring main units are not provided with power supplies suitable for a dehumidification system, so that the technical problem of difficulty in power taking exists.
In order to solve the above-described technical problem, publication No. CN107703985A discloses a dehumidifying apparatus and an electric power cabinet, including: the control module, and a humidity sensor and a dehumidification system which are connected with the control module; the control module comprises a data processor, a data receiving unit, a driving unit and a communication unit; the data processor is used for receiving the humidity parameter, when the humidity parameter exceeds the preset humidity threshold value, the drive unit drives the dehumidification system to start dehumidification work, the communication unit is connected with the upper computer, the humidity parameter is sent to the upper computer, a drive signal sent by the upper computer is received, and the drive unit drives the dehumidification system to start dehumidification work. The dehumidifying device and the electric power cabinet provided by the invention are beneficial to monitoring the humidity condition of the environment where the electric power cabinet is located by workers in real time, so that dehumidifying work is adopted, the electric power equipment is prevented from being in a humid environment for a long time, and the performance and the service life of the electric power equipment are favorably ensured. However, the dehumidification system uses the compressor as a refrigeration mode, has the problems of large energy consumption and large noise, does not have an automatic fire extinguishing function, and cannot solve the technical problem of difficult power taking.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: due to the fact that the performance and the service life of power equipment are reduced due to the fact that moisture exists, potential safety hazards exist, and the technical problem that electricity is difficult to get nearby the ring main unit exists.
In order to solve the technical problems, the invention provides a wind-solar complementary self-energy-supply-based ring main unit dehumidification system which comprises a power supply module, a controller, a monitoring module and a dehumidification module, wherein the power supply module supplies power to the controller, the monitoring module and the dehumidification module are connected with the controller, the dehumidification module comprises a semiconductor refrigeration piece, a fan and a radiator, the semiconductor refrigeration piece comprises a hot end and a cold end, the radiator is connected with the hot end, the fan improves the heat dissipation efficiency of the radiator, the monitoring module monitors the air humidity in the ring main unit, and the controller controls the input currents of the semiconductor refrigeration piece and the fan. The semiconductor refrigerating sheets are arranged at each position of the ring main unit in multiple groups, the advantage of small semiconductor refrigerating volume is reflected, and when the monitoring module monitors that the humidity of air in the ring main unit exceeds a set value M1, the semiconductor refrigerating sheets and the fan are controlled to operate at normal power; when the monitoring module monitors that the air humidity in the ring main unit exceeds a set value M2(M2> M1), all the semiconductor refrigerating sheets and the fans are controlled to operate at the maximum safe power.
Preferably, the power module comprises a wind power generation module, a solar power generation module, a power transmission module and a lithium battery, the wind power generation module and the solar power generation module charge the lithium battery, and the lithium battery supplies power to the controller, the monitoring module, the semiconductor refrigeration piece and the fan. The power utilization problem of the ring main unit dehumidification system is solved by utilizing solar energy and wind power generation, and a power supply does not need to be accessed from the outside.
Preferably, the wind-solar complementary self-energy-supply-based ring main unit dehumidification system further comprises an overcharge protection module, and the overcharge protection module adjusts output currents of the wind power generation module and the solar power generation module according to voltages of two poles of a lithium battery. When lithium battery voltage was low excessively, if the too high electrode damage that can lead to of charging current, when lithium battery voltage was too high, it easily leads to the battery explosion that generates heat to continue to charge, consequently sets up overcharge protection module protects the battery. The overcharge protection module can be a protection circuit consisting of a chip with a voltage comparison function, an MOS (metal oxide semiconductor) tube and other electronic devices.
Preferably, the ring main unit dehumidification system based on wind-solar hybrid self-powered energy further comprises a water guide pipe, a water channel is arranged at the cold end of the semiconductor refrigeration sheet, and the water guide pipe is connected with the water outlet end of the water channel and the outside of the ring main unit. Moisture in the air in the ring main unit is in after the cooling liquefaction of semiconductor refrigeration piece cold junction, through water course and aqueduct discharge ring main unit can not influence the condensation effect because cold junction surface moisture is too much.
Preferably, the dehumidification module further comprises a drying box, the drying box is arranged in the ring main unit and comprises an inner box body defined by a base and a filter screen and a side sealing plate formed by an electromagnet, a drying agent is stored in the inner box body, the side sealing plate is movably connected with the base, and the side sealing plate is connected between the lithium battery and the controller in series. The side sealing plates are divided into 4 blocks, and the shapes of the side sealing plates are matched with the inner box body. When lithium battery output current is normal, the side seal board has magnetism under the electric current effect, and is external at the inner box body through the magnetic force laminating, when lithium battery output current is abnormal, the controller can't make semiconductor refrigeration piece normally works, and the side seal board is opened because the electric current crosses lowly and loses magnetism 4 pieces of side seal boards this moment, makes the inner box body drier expose in the air, replaces temporarily the dehumidification function of semiconductor refrigeration piece.
Preferably, the wind-solar hybrid self-powered ring main unit dehumidification system further comprises an automatic fire extinguishing module, the automatic fire extinguishing module comprises a power module, a temperature control switch, an electromagnetic valve and a gas fire extinguisher, the power module is independent of the lithium battery, the temperature control switch is connected with the temperature control switch, the electromagnetic valve is controlled by the temperature control switch, the gas fire extinguisher is controlled by the electromagnetic valve, the temperature control switch comprises a wire inlet, a glass column and a wire outlet, a cavity is formed in the glass column, one end of the wire inlet is connected with the power module, the other end of the wire inlet is connected with the cavity, one end of the wire outlet is connected with the cavity, the other end of the wire outlet is connected with the electromagnetic valve, a mercury column is arranged at the bottom of the cavity, and the mercury column is electrically communicated with the wire inlet and the wire outlet after the ring main unit is fired. When the temperature rises, the mercury expands due to heating, the circuit is communicated, and the electromagnetic valve is opened to extinguish the fire.
Preferably, the wind-solar complementary self-energy supply-based ring main unit dehumidification system further comprises an automatic fire extinguishing module, the automatic fire extinguishing module comprises two sealed containers which are vertically arranged one above the other, a plurality of channels are arranged between the two containers, paraffin sealing columns are arranged in the channels, sulfuric acid is stored in the container above the containers, bicarbonate is stored in the container below the containers, the paraffin sealing columns enable hydrochloric acid in the containers above the containers to not reach the containers below the containers above the containers, one-way air inlet valves are arranged on the containers above the containers, and one-way air outlet valves are arranged on the containers below the containers. And the paraffin is melted after the ring main unit is ignited, so that the channel is communicated, and substances in the two containers react to generate carbon dioxide, so that the flame in the ring main unit is extinguished due to insufficient oxygen. The one-way valve maintains the air pressure balance in the container so that the acid liquor flows down smoothly.
Preferably, the wind-solar complementary self-energy-supply-based ring main unit dehumidification system further comprises an automatic fire extinguishing module, the automatic fire extinguishing module comprises a gas fire extinguisher, the gas fire extinguisher comprises a steel cylinder storing compressed fire extinguishing gas, the steel cylinder comprises a gas outlet, a bottleneck, a plug screw and a cylinder body, the gas outlet is connected with the cylinder body through the bottleneck, an internal thread and a plug screw matched with the internal thread are arranged in the bottleneck, paraffin is sealed in the gas outlet, and the thread of the plug screw does not meet the self-locking condition. The thread lead angle of the screw plug is smaller than the equivalent friction angle of the screw pair, when pressurized liquefied gas exists in the steel cylinder, the internal pressure P1 is large, after calculation of relevant parameters, the screw plug can realize the effect of slowly spirally rising under the action of the pressure P1, and the rising effect is counteracted by the supporting force generated by paraffin at the gas outlet. The melting point of the paraffin is 50-70 ℃, when the ring main unit catches fire, the paraffin is melted, the screw plug losing the supporting force is ejected out of the air outlet by the gas, and the fire extinguishing gas in the bottle is released to realize fire extinguishing. Preferably, the automatic fire extinguishing module is installed at a higher position in the ring main unit and can be contacted with hot air at the first time.
Preferably, looped netowrk cabinet dehumidification system based on complementary self-energy supply of scene still includes the automatic fire extinguishing module, the automatic fire extinguishing module includes gas extinguisher, gas extinguisher is including the steel bottle that has the compressed fire extinguishing gas, the steel bottle includes gas outlet, bottleneck, bottle plug, body and multistage lever, the gas outlet passes through the bottleneck with the body is connected, multistage lever laborsaving end passes through paraffin and looped netowrk cabinet upper cover plate internal surface connection, multistage lever laborious end with bottle plug fixed connection. Through lever principle, with gaseous in the bottle to the great thrust of bottle plug is balanced with a less power, for example with the fixed taut nylon wire of paraffin, when the looped netowrk cabinet catches fire, paraffin melts, can't continue to balance the pulling force of nylon wire, and the lever is unbalanced, and the bottle plug receives the effect of gas pressure and is pushed out the gas outlet, and the release of the fire extinguishing gas in the bottle realizes putting out a fire. Preferably, the automatic fire extinguishing module is installed at a higher position in the ring main unit and can be contacted with hot air at the first time.
The substantial effects of the invention are as follows:
1) the technical problem that the performance and the service life of the power equipment are reduced due to overhigh humidity in the ring main unit is solved; 2) the potential safety hazard problems of ignition of the ring main unit and the like are solved; 3) the problem of looped netowrk cabinet dehumidification system power supply difficulty is solved.
The ring main unit self-powered fire extinguishing device disclosed by the invention adopts clean energy for self power supply, is favorable for sustainable development, has an automatic fire extinguishing function, and can extinguish the fire of the ring main unit at the first time and reduce loss.
Drawings
Fig. 1 is an external structural schematic diagram of the first embodiment.
FIG. 2 is a schematic structural diagram of an embodiment.
FIG. 3 is a schematic view of a drying oven according to an embodiment.
Fig. 4 is a schematic diagram of an embodiment of an automatic fire suppression module.
In the figure: 1. the system comprises a wind power generation module, a solar power generation module, a ring main unit 3, a monitoring module 4, an overcharge protection module 5, a controller 6, a side sealing plate 7, a lithium battery 8, an automatic fire extinguishing module 9, a fan 10, a semiconductor refrigeration piece 11, a radiator 12, a water guide pipe 13, an inner box 14, a steel cylinder 15, a screw plug 16 and paraffin 17.
Detailed Description
The following provides a more detailed description of the present invention, with reference to the accompanying drawings.
As shown in fig. 1, the wind-solar hybrid self-powered ring main unit dehumidification system is used for dehumidification and safety protection of a ring main unit 3, and the external structure includes a wind power generation module 11, a solar power generation module 22 and a connecting rod connected with the inside of the ring main unit 3. The wind power generation module 11 and the solar power generation module 22 supply power to the dehumidification system.
As shown in fig. 2, the monitoring module 4 and the semiconductor refrigeration sheet 11 are both connected to the controller 6, the semiconductor refrigeration sheet 11 is connected to the fan 10 and the radiator 12, the semiconductor refrigeration sheet 11 includes a hot end and a cold end, the radiator 12 is connected to the hot end, and the fan 10 improves the heat dissipation efficiency of the radiator 12. The monitoring module 4 comprises a humidity sensor for monitoring the air humidity in the ring main unit 3, and the controller 6 controls the input current of the semiconductor refrigerating sheet 11 and the fan 10 according to the air humidity. The semiconductor refrigeration pieces 11 are arranged at each position of the ring main unit 3 in multiple groups, the advantage of small semiconductor refrigeration volume is reflected, and when the monitoring module 4 monitors that the humidity of air in the ring main unit 3 exceeds a set value M1, the semiconductor refrigeration pieces 11 and the fan 10 are controlled to operate at normal power; when the monitoring module 4 monitors that the air humidity in the ring main unit 3 exceeds a set value M2(M2> M1), all the semiconductor cooling fins 11 and the fan 10 are controlled to operate at the maximum safe power. The overcharge protection module 5 is connected between the wind power generation module 1 and the solar power generation module 2 and the lithium battery 8. The automatic fire extinguishing module 9 is arranged at the upper position in the ring main unit 3. The cold end of the semiconductor refrigeration sheet 11 is provided with a water channel, and the water guide pipe 13 is connected with the water outlet end of the water channel and the outside of the ring main unit 3. After moisture in the air in the ring main unit 3 is cooled and liquefied at the cold end of the semiconductor refrigeration sheet 11, the water channel and the water guide pipe 13 are discharged out of the ring main unit 3, and the condensation effect cannot be influenced due to excessive moisture on the surface of the cold end. An electromagnet serving as a drying box sealing plate is connected in series between the lithium battery 8 and the controller 6.
As shown in fig. 3, the drying box is disposed in the ring main unit 3, the drying box includes an inner box 14 surrounded by a base and a filter screen, and a side sealing plate 7 composed of an electromagnet, a drying agent is stored in the inner box 14, and the side sealing plate 7 is movably connected to the base. When the electromagnet is electrified, the magnetic force generated makes the book-sealing plate attached to the inner box body 14, and reduces the contact between the internal drying agent and the air in the ring main unit 3.
As shown in fig. 4, the automatic fire extinguishing module 9 includes a gas fire extinguisher, the gas fire extinguisher includes a steel cylinder 15 storing compressed fire extinguishing gas, the steel cylinder 15 includes a gas outlet, a bottle neck, a plug screw 16 and a bottle body, the gas outlet is connected with the bottle body through the bottle neck, an internal thread and a plug screw 16 matched with the internal thread are arranged in the bottle neck, paraffin 17 is sealed in the gas outlet, and the thread of the plug screw 16 does not satisfy the self-locking condition. The lead angle of the screw plug 16 is smaller than the equivalent friction angle of the screw pair, when the steel cylinder 15 stores the pressurized liquefied gas, the internal pressure P1 is larger, the screw plug 16 can realize the effect of slowly spirally rising under the action of the pressure P1 after the calculation of relevant parameters such as gravity, an inclination angle, a friction angle and an allowance, and the rising effect is counteracted by the supporting force generated by the paraffin 17 at the gas outlet. The melting point of the paraffin 17 is 50-70 ℃, when the ring main unit 3 catches fire, the paraffin 17 melts, the screw plug 16 losing the supporting force is ejected out of the air outlet by the gas, and the fire extinguishing gas in the bottle is released to realize fire extinguishing. Preferably, the automatic fire extinguishing module 9 is installed at a higher position in the ring main unit 3, and can be contacted with hot air at the first time.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (8)
1. The utility model provides a looped netowrk cabinet dehumidification system based on complementary self-energy supply of scene which characterized in that: the dehumidifying device comprises a power supply module, a controller, a monitoring module and a dehumidifying module, wherein the power supply module supplies power to the controller, the monitoring module and the dehumidifying module are connected with the controller, the dehumidifying module comprises a semiconductor refrigerating sheet, a fan and a radiator, the semiconductor refrigerating sheet comprises a hot end and a cold end, the radiator is connected with the hot end, the fan improves the heat dissipation efficiency of the radiator, the monitoring module monitors the air humidity in the ring main unit, the controller controls the input current of the semiconductor refrigerating sheet and the fan, the dehumidifying module further comprises a drying box, the drying box is arranged in the ring main unit and comprises an inner box body formed by a base and a filter screen and a side sealing plate formed by electromagnets, drying agents are stored in the inner box body, and the side sealing plate is movably connected with the base, the side sealing plates are connected between the lithium battery and the controller in series, and when the output current of the lithium battery is normal, the side sealing plates are attached to the outer portion of the inner box body through magnetic force; when the output current of the lithium battery is abnormal, the side sealing plates are opened, and the drying agent is exposed in the air.
2. The wind-solar complementary self-powered ring main unit dehumidification system according to claim 1, wherein: the power module comprises a wind power generation module, a solar power generation module, an electric power transmission module and a lithium battery, the wind power generation module and the solar power generation module are charged by the lithium battery, and the lithium battery supplies power to the controller, the monitoring module, the semiconductor refrigerating sheet and the fan.
3. The wind-solar complementary self-powered ring main unit dehumidification system according to claim 1, wherein: the ring main unit is characterized by further comprising a water guide pipe, a water channel is arranged at the cold end of the semiconductor refrigeration sheet, and the water guide pipe is connected with the water outlet end of the water channel and the outside of the ring main unit.
4. The wind-solar complementary self-powered ring main unit dehumidification system according to claim 2, wherein: the system further comprises an overcharge protection module, and the overcharge protection module adjusts the output current of the wind power generation module and the output current of the solar power generation module according to the voltage of two poles of the lithium battery.
5. The wind-solar hybrid self-powered ring main unit dehumidification system according to any one of claims 1 to 4, wherein: still include the automatic fire extinguishing module, the automatic fire extinguishing module is including being independent of power module, temperature detect switch, solenoid valve and the gaseous fire extinguisher outside the lithium cell, power module with temperature detect switch connects, temperature detect switch control the solenoid valve, solenoid valve control the gaseous fire extinguisher, temperature detect switch includes inlet wire, glass post and is qualified for the next round of competitions, there is the cavity in the glass post, inlet wire one end with power module connects, the other end with the cavity is connected, one end of being qualified for the next round of competitions with the cavity is connected, the other end with the solenoid valve is connected, there is the mercury column cavity bottom, the mercury column is electric intercommunication after the looped netowrk cabinet catches fire the inlet wire with be qualified for the next round of competitions.
6. The wind-solar hybrid self-powered ring main unit dehumidification system according to any one of claims 1 to 4, wherein: still include the automatic fire extinguishing module, the automatic fire extinguishing module includes two sealed containers of vertical placing one on top of the other, is equipped with a plurality of passageways between two containers, be equipped with paraffin in the passageway and seal the post, the top the container internal storage has sulphuric acid, the below the container internal storage has bicarbonate, paraffin seals the post and makes the top hydrochloric acid can't reach the below in the container, the top the container is equipped with one-way admission valve, the below the container is equipped with one-way air outlet valve.
7. The wind-solar hybrid self-powered ring main unit dehumidification system according to any one of claims 1 to 4, wherein: still include the automatic fire extinguishing module, the automatic fire extinguishing module includes gas fire extinguisher, gas fire extinguisher is including depositing the steel bottle of compression fire extinguishing gas, the steel bottle includes gas outlet, bottleneck, plug screw and body, the gas outlet passes through the bottleneck with the body is connected, be equipped with in the bottleneck internal thread and with the plug screw that the internal thread matches, the gas outlet is sealed has paraffin, the unsatisfied auto-lock condition of screw thread of plug screw.
8. The wind-solar hybrid self-powered ring main unit dehumidification system according to any one of claims 1 to 4, wherein: still include the automatic fire extinguishing module, the automatic fire extinguishing module includes gaseous fire extinguisher, gaseous fire extinguisher is including depositing the steel bottle of compression fire extinguishing gas, the steel bottle includes gas outlet, bottleneck, bottle plug, body and multistage lever, the gas outlet passes through the bottleneck with the body is connected, multistage lever laborsaving end is through paraffin and looped netowrk cabinet upper cover internal surface connection, multistage lever power end with bottle plug fixed connection.
Priority Applications (1)
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| CN202010664754.2A CN111969423B (en) | 2020-07-10 | 2020-07-10 | Ring main unit dehumidification system based on wind-solar hybrid self-energy supply |
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| CN202010664754.2A CN111969423B (en) | 2020-07-10 | 2020-07-10 | Ring main unit dehumidification system based on wind-solar hybrid self-energy supply |
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| CN111969423A CN111969423A (en) | 2020-11-20 |
| CN111969423B true CN111969423B (en) | 2022-07-05 |
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| CN113471825B (en) * | 2021-05-17 | 2022-11-01 | 广西电网有限责任公司河池供电局 | Open-close alternate dehumidification type ring main unit with coagulation aid dew |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107312695A (en) * | 2017-08-24 | 2017-11-03 | 中国科学院海洋研究所 | A kind of astaxanthin wine and its preparation and Special-purpose wine bottle |
| CN207819190U (en) * | 2018-02-06 | 2018-09-04 | 国网江苏省电力有限公司宿迁供电分公司 | A kind of wind light mutual complementing power supply looped network cabinet dehumidification device |
| CN207938982U (en) * | 2018-04-06 | 2018-10-02 | 江苏瑞鑫电器有限公司 | A kind of low-tension switch cabinet with high-effect fire-extinguishing device |
| CN109442607A (en) * | 2018-12-17 | 2019-03-08 | 广东富信科技股份有限公司 | Semiconductor dehumidifying device and its control method |
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2020
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107312695A (en) * | 2017-08-24 | 2017-11-03 | 中国科学院海洋研究所 | A kind of astaxanthin wine and its preparation and Special-purpose wine bottle |
| CN207819190U (en) * | 2018-02-06 | 2018-09-04 | 国网江苏省电力有限公司宿迁供电分公司 | A kind of wind light mutual complementing power supply looped network cabinet dehumidification device |
| CN207938982U (en) * | 2018-04-06 | 2018-10-02 | 江苏瑞鑫电器有限公司 | A kind of low-tension switch cabinet with high-effect fire-extinguishing device |
| CN109442607A (en) * | 2018-12-17 | 2019-03-08 | 广东富信科技股份有限公司 | Semiconductor dehumidifying device and its control method |
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| CN111969423A (en) | 2020-11-20 |
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