CN109066415A - A kind of aeration radiation system of buried photovoltaic substation - Google Patents
A kind of aeration radiation system of buried photovoltaic substation Download PDFInfo
- Publication number
- CN109066415A CN109066415A CN201811249355.9A CN201811249355A CN109066415A CN 109066415 A CN109066415 A CN 109066415A CN 201811249355 A CN201811249355 A CN 201811249355A CN 109066415 A CN109066415 A CN 109066415A
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- Prior art keywords
- wind
- ventilation
- radiation system
- well lid
- intake stack
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- 238000005273 aeration Methods 0.000 title claims abstract description 19
- 230000005855 radiation Effects 0.000 title claims abstract description 19
- 238000009423 ventilation Methods 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000007667 floating Methods 0.000 claims abstract description 20
- 238000007731 hot pressing Methods 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- 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
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B7/00—Enclosed substations, e.g. compact substations
- H02B7/06—Distribution substations, e.g. for urban network
- H02B7/08—Underground substations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
A kind of buried substation aeration radiation system, including ventilation heat abstractor, water-tight device and drainage arrangement；Ventilation device includes air inlet and air outlet, and grid well lid is provided on air inlet and air outlet；It is provided with intake stack below air inlet grid well lid, is provided with wind pipe below air outlet grid well lid, is provided with electromagnetism butterfly valve on intake stack and wind pipe；Electromagnetism butterfly valve is chronically at the state of unlatching, is provided with wind blocker in transformer tank body；The hot pressing that the wind pressure and indoor/outdoor temperature-difference that wind-force outside by cabinet is formed are formed carries out gravity-flow ventilation as power；Axial flow blower is provided on wind pipe, axial flow blower passes through the intracorporal temperature sensor of PLC connecting box.Aeration radiation system of the invention, ventilation effect are good.Using water tank ventilating drainage system, dexterously devising U-shaped ventilation duct, solenoid valve and mechanical floating ball Double reverse-proof filling device ensure that the waterproof performance of cabinet while realizing ventilation function.
Description
Technical field
The present invention relates to technical field of photovoltaic power generation, and in particular to a kind of ventilation and heat system of buried photovoltaic substation
System.
Background technique
With the development of society and the increasingly scarcity of earth resource, solar energy can be again as a kind of low-carbon of safety and environmental protection
Raw emerging energy is increasingly taken seriously, easy to use and low in cost compared with conventional energy resource, to environment without any dirt
Dye, use in terms of have unrivaled advantage, be widely used in every field.
And principal mode of the photovoltaic power generation as Solar use, power generation end is mainly by by several solar batteries
It is packaged after plate series connection and arranges the area battery component to be formed by square matrix and realized, and power transformation end then generates electricity with other resources
The same substation realizes that existing photovoltaic substation type is varied, and since photovoltaic cell component itself occupies
More ground space, conventional boxes are become, half imbededd case become be fully embedded the buried photovoltaic substation of below ground then by compared with
More selections, this buried photovoltaic substation have the advantages that environmentally friendly, energy saving, antitheft, low noise, land utilization ratio.But
Transformer and high and low voltage electric distribution equipment are installed inside this kind of buried substations, the transformer run in seal case
Sustained release goes out heat, this meeting is so that the environment temperature of box house rises rapidly, beyond controller switching equipment temperature range of operation, shadow
Ring the normal work of substation.Buried substation must exchange heat with the external world, electrically set so that the intracorporal temperature of case reaches
Standby normal range of operation.
Summary of the invention
Technical problem solved by the invention is to provide a kind of aeration radiation system of buried photovoltaic substation, with solution
The defects of certainly above-mentioned technical background.
Technical problem solved by the invention is realized using following technical scheme:
A kind of aeration radiation system of buried photovoltaic substation, including ventilation heat abstractor, water-tight device and drainage arrangement；Institute
Stating ventilation device includes air inlet and air outlet, and grid well lid is provided on the air inlet and air outlet；In air inlet grid
Be provided with intake stack below lattice well lid, be provided with wind pipe below air outlet grid well lid, the intake stack and
Electromagnetism butterfly valve is provided on wind pipe；Electromagnetism butterfly valve is chronically at the state of unlatching, is provided in transformer tank body
Wind blocker；The hot pressing that the wind pressure and indoor/outdoor temperature-difference that wind-force outside by cabinet is formed are formed carries out nature as power and leads to
Wind；The intake stack stretches to the bottom of cabinet, and axial flow blower is provided on wind pipe, and axial flow blower passes through
The intracorporal temperature sensor of PLC connecting box.
In the present invention, using hot and cold air pressure initiation gravity-flow ventilation, the heat dissipation in transformer station box is completed.Ordinary circumstance
Under, battery butterfly valve is chronically at the state of unlatching, and intake stack and wind pipe form the mode of one-in-and-one-out.Cold wind is from air inlet
Pipe enters the bottom of box after coming in, exported hot wind hot wind by wind pipe by axial flow blower after heat exchange, the row of playing
The effect of heat.In order to exchange the intracorporal gas of case sufficiently, the vent window for preventing wind from directly passing through cabinet two sides forms convection current,
Wind blocker is installed in ventilated box body, forces wind to flow in ventilated box body, material is thus formed circulations.In wind pipe
Upper setting axial flow blower, the intracorporal temperature sensor of connecting box, heat is larger when the temperature is excessively high in cabinet, and temperature is higher than setting value
When, starting axial flow blower forces air discharging and radiating.Before service personnel enters cabinet, exhaust system is forced in starting, keeps empty in cabinet
Gas is pure and fresh.
Above-mentioned buried substation aeration radiation system, it is preferred that the ventilation heat abstractor further includes corrugated
Substation's tank wall.Transformer Selection F grades of insulating materials in the present invention, enables the heat resisting temperature of transformer to reach 155 DEG C
Limit heat resisting temperature, run transformer can also normally under high temperature environment.In the present invention, the tank wall of transformer-cabinet is adopted
Corrugated tank wall construction not only increases the mechanical performance of tank wall in this way, also at double increase cabinet wall surface and extraneous
Contact area, while the also heat-sinking capability for increasing cabinet at double.
Above-mentioned buried substation aeration radiation system, it is preferred that the water-tight device includes being located at grid well
Header tank, inverted u-shaped intake stack and wind pipe, fluid level controller under lid；The fluid level controller passes through PLC and electricity
The both ends of the connection of magnetic butterfly valve, the intake stack and wind pipe are located in transformer station box and header tank.
Above-mentioned buried substation aeration radiation system, it is preferred that the water-tight device further includes being arranged in header tank
Interior floating ball device, the floating ball device include floating ball and position-limiting drum, and the floating ball is located in position-limiting drum, and the position-limiting drum is fixed
In header tank；The position-limiting drum be located at the air inlet of inverted u-shaped intake stack underface or inverted u-shaped discharge pipe
The underface of road air outlet.When encountering the rainy day, rainwater can enter inside header tank by grid well lid, but intake stack is adopted
It is the design of inverted u-shaped bend, forms natural umbrella-shaped structure, enter rainwater will not directly by ventilation shaft
Box house.When meeting heavy rain weather, it is more than police that when sewer not can be carried out effectively discharge in time, header tank water level inside, which rises,
Cause fluid level controller contact action when guarding against water level, control electric butterfly valve is closed, and so that cabinet is isolated from the outside, is carried out waterproof.And
When the larger electric butterfly valve of water flow cannot close in time, because water level rising can make floating ball float, and right above floating ball it is pipe
Road junction.Floating ball floats up to can then block pipeline opening to a certain degree, and the amount of water flow is flowed backward in effective control.Enter the rain of cabinet simultaneously
Water can be fallen into catch basin, be expelled to outside cabinet by water pump.After rainwater racks up in header tank, floating ball is due to gravity
It falls after rise, leaves pipeline opening, fluid level controller contact is replied, and electric butterfly valve is opened, and ventilating system reopens heat dissipation work.
Above-mentioned buried substation aeration radiation system, it is preferred that the drainage arrangement includes having to hold water elbow
Drainage pipeline and the water pump being arranged in transformer station box, the bottom that header tank is set with the drainage pipeline for holding water elbow
It portion and is connect with municipal sewer pipe；The drainpipe of the water pump is connected in header tank.With the drainpipe for holding water elbow
The direct connection in road enables the rainwater into header tank effectively to discharge to municipal sewer.The trap of pipeline opening simultaneously
The design of head also can effectively prevent the pernicious gases reverse flows such as the methane in sewer and enter in cabinet.
The utility model has the advantages that aeration radiation system of the invention, ventilation effect is good.It is ingenious using water tank ventilating drainage system
Ground devises U-shaped ventilation duct, solenoid valve and mechanical floating ball Double reverse-proof filling device and ensure that while realizing ventilation function
The waterproof performance of cabinet.Ripple folded structure increases the mechanical strength of cabinet, meets cabinet pouring, while folded structure
Cabinet heat dissipation area is increased, buried substation heat dissipation is conducive to.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of buried substation aeration radiation system in the present invention.
Fig. 2 is the structural schematic diagram of water-tight device in the present invention.
Wherein: 1, grid well lid；2, intake stack；3, wind pipe；4, electromagnetism butterfly valve；5, axial flow blower；6, header tank；
7, fluid level controller；8, floating ball；9, position-limiting drum；10, water pump；11, drainage pipeline.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Referring to a kind of aeration radiation system of buried photovoltaic substation of Fig. 1, in the present embodiment, including ventilation and heat
Device, water-tight device and drainage arrangement；Ventilation device includes air inlet and air outlet, is provided with grid on air inlet and air outlet
Lattice well lid 1；The lower section of air inlet grid well lid 1 is provided with intake stack 2, the lower section of air outlet grid well lid 1 is provided with out
Electromagnetism butterfly valve 4 is provided on air piping 3, intake stack 2 and wind pipe 3；Electromagnetism butterfly valve 4 is chronically at the shape of unlatching
State is provided with wind blocker in transformer tank body；What the wind pressure and indoor/outdoor temperature-difference that the wind-force outside by cabinet is formed were formed
Hot pressing carries out gravity-flow ventilation as power；Intake stack 2 stretches to the bottom of cabinet, and is provided with axis on wind pipe 3
Flow fan 5, axial flow blower 5 pass through the intracorporal temperature sensor of PLC connecting box.
In the present embodiment, ventilation heat abstractor further includes corrugated substation's tank wall.
In the present embodiment, water-tight device includes positioned at header tank 6, the inverted u-shaped intake stack being located under grid well lid 1
2 and wind pipe 3, fluid level controller 7；Fluid level controller 7 is connect by PLC with electromagnetism butterfly valve 4, intake stack 2 and discharge pipe
The both ends in road 3 are located in transformer station box and header tank 6.
In the present embodiment, water-tight device further includes the floating ball device being arranged in header tank, and floating ball device includes 8 He of floating ball
Position-limiting drum 9, floating ball 8 are located in position-limiting drum 9, and position-limiting drum 9 is fixed in header tank 6；Position-limiting drum 9 is located at inverted u-shaped blast pipe
The underface of the air inlet in road 2 or the underface of inverted u-shaped 3 air outlet of wind pipe.
In the present embodiment, drainage arrangement includes with the drainage pipeline 11 for holding water elbow and being arranged in transformer station box
Water pump 10 is arranged in the bottom of header tank with the drainage pipeline 11 for holding water elbow and connect with municipal sewer pipe；Water pump
10 drainpipe is connected in header tank 6.
The aeration radiation system of the present embodiment, ventilation effect are good.Using water tank ventilating drainage system, dexterously devise
U-shaped ventilation duct, solenoid valve and mechanical floating ball Double reverse-proof filling device ensure that the anti-of cabinet while realizing ventilation function
Aqueous energy.Ripple folded structure increases the mechanical strength of cabinet, meets cabinet pouring, while folded structure increases case
Body heat dissipation area is conducive to buried substation heat dissipation.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (5)
1. a kind of buried substation aeration radiation system, it is characterised in that: including ventilation heat abstractor, water-tight device and draining
Device；The ventilation device includes air inlet and air outlet, and grid well lid is provided on the air inlet and air outlet；Into
It is provided with intake stack below the grid well lid of air port, wind pipe, the air inlet are provided with below air outlet grid well lid
Electromagnetism butterfly valve is provided on pipeline and wind pipe；Electromagnetism butterfly valve is chronically at the state of unlatching, in transformer tank body
It is provided with wind blocker；The hot pressing that the wind pressure and indoor/outdoor temperature-difference that wind-force outside by cabinet is formed are formed carries out certainly as power
So ventilation；The intake stack stretches to the bottom of cabinet, and axial flow blower is provided on wind pipe, and axial flow blower is logical
Cross the intracorporal temperature sensor of PLC connecting box.
2. buried substation aeration radiation system according to claim 1, it is characterised in that: the ventilation heat abstractor
It further include corrugated substation's tank wall.
3. buried substation aeration radiation system according to claim 1 or 2, it is characterised in that: the water-tight device
Including the header tank, inverted u-shaped intake stack and wind pipe, fluid level controller being located under grid well lid；The liquid
Level controller is connect by PLC with electromagnetism butterfly valve, and the both ends of the intake stack and wind pipe are located at substation's case
In body and header tank.
4. buried substation aeration radiation system according to claim 3, it is characterised in that: the water-tight device also wraps
The floating ball device being arranged in header tank is included, the floating ball device includes floating ball and position-limiting drum, and the floating ball is located in position-limiting drum,
The position-limiting drum is fixed in header tank；The position-limiting drum be located at the air inlet of inverted u-shaped intake stack underface or
The underface of inverted u-shaped wind pipe air outlet.
5. buried substation aeration radiation system according to claim 1 or 2, it is characterised in that: the drainage arrangement
It is described with the drainpipe for holding water elbow including having the drainage pipeline for holding water elbow and the water pump being arranged in transformer station box
Road is arranged in the bottom of header tank and connect with municipal sewer pipe；The drainpipe of the water pump is connected in header tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811249355.9A CN109066415A (en) | 2018-10-25 | 2018-10-25 | A kind of aeration radiation system of buried photovoltaic substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811249355.9A CN109066415A (en) | 2018-10-25 | 2018-10-25 | A kind of aeration radiation system of buried photovoltaic substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109066415A true CN109066415A (en) | 2018-12-21 |
Family
ID=64765480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811249355.9A Pending CN109066415A (en) | 2018-10-25 | 2018-10-25 | A kind of aeration radiation system of buried photovoltaic substation |
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| CN (1) | CN109066415A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110311322A (en) * | 2019-08-13 | 2019-10-08 | 华翔翔能电气股份有限公司 | An intelligent compact waterproof and drainage buried substation |
| CN110311321A (en) * | 2019-08-06 | 2019-10-08 | 华翔翔能电气股份有限公司 | A kind of intelligence compact ventilation buried substation |
| CN110336204A (en) * | 2019-07-09 | 2019-10-15 | 无锡旭浦能源科技有限公司 | High-protection type electric energy storing system and its method for photovoltaic micro |
| CN110503796A (en) * | 2019-08-12 | 2019-11-26 | 国网浙江电动汽车服务有限公司 | An outdoor smoke sensing device and its limit device |
| CN110601048A (en) * | 2019-09-26 | 2019-12-20 | 华翔翔能电气股份有限公司 | Intelligence fortune dimension detects distribution room |
| CN111129992A (en) * | 2020-02-18 | 2020-05-08 | 安徽通昊电力设备有限公司 | Bury formula switch board outdoor view |
| CN111431079A (en) * | 2020-04-22 | 2020-07-17 | 福清市满惠电子科技有限公司 | Transformer substation's prevention waterlogging device |
| CN112038943A (en) * | 2019-12-11 | 2020-12-04 | 史国民 | Box-type substation |
| CN112350200A (en) * | 2020-12-23 | 2021-02-09 | 国网河南省电力公司桐柏县供电公司 | Bury power equipment's self-ventilation structure |
| WO2021027359A1 (en) * | 2019-08-14 | 2021-02-18 | 华翔翔能科技股份有限公司 | Buried substation with energy recycling function |
| CN116950351A (en) * | 2023-07-25 | 2023-10-27 | 中交建筑集团有限公司 | Basement ventilation shaft flush with ground |
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| CN2043729U (en) * | 1988-12-29 | 1989-08-30 | 王泽云 | Automatic exhaust valve sealed with ball |
| CN203707604U (en) * | 2014-01-25 | 2014-07-09 | 江苏伟特烈配电设备有限公司 | Drainage ventilation device used for all-buried transformer substation |
| CN205681088U (en) * | 2016-06-23 | 2016-11-09 | 安徽迪康电力科技有限公司 | A kind of the ground-buried high-tension cable divides having Auto-drainage dehydrating unit |
| CN108390295A (en) * | 2018-03-23 | 2018-08-10 | 华翔翔能电气股份有限公司 | The body structure of full burying-terra transformer substation |
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2018
- 2018-10-25 CN CN201811249355.9A patent/CN109066415A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2043729U (en) * | 1988-12-29 | 1989-08-30 | 王泽云 | Automatic exhaust valve sealed with ball |
| CN203707604U (en) * | 2014-01-25 | 2014-07-09 | 江苏伟特烈配电设备有限公司 | Drainage ventilation device used for all-buried transformer substation |
| CN205681088U (en) * | 2016-06-23 | 2016-11-09 | 安徽迪康电力科技有限公司 | A kind of the ground-buried high-tension cable divides having Auto-drainage dehydrating unit |
| CN108390295A (en) * | 2018-03-23 | 2018-08-10 | 华翔翔能电气股份有限公司 | The body structure of full burying-terra transformer substation |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110336204A (en) * | 2019-07-09 | 2019-10-15 | 无锡旭浦能源科技有限公司 | High-protection type electric energy storing system and its method for photovoltaic micro |
| CN110311321A (en) * | 2019-08-06 | 2019-10-08 | 华翔翔能电气股份有限公司 | A kind of intelligence compact ventilation buried substation |
| CN110311321B (en) * | 2019-08-06 | 2023-08-25 | 华翔翔能科技股份有限公司 | Intelligent compact type ventilation buried transformer substation |
| CN110503796A (en) * | 2019-08-12 | 2019-11-26 | 国网浙江电动汽车服务有限公司 | An outdoor smoke sensing device and its limit device |
| CN110311322A (en) * | 2019-08-13 | 2019-10-08 | 华翔翔能电气股份有限公司 | An intelligent compact waterproof and drainage buried substation |
| WO2021027359A1 (en) * | 2019-08-14 | 2021-02-18 | 华翔翔能科技股份有限公司 | Buried substation with energy recycling function |
| CN110601048A (en) * | 2019-09-26 | 2019-12-20 | 华翔翔能电气股份有限公司 | Intelligence fortune dimension detects distribution room |
| CN112038943A (en) * | 2019-12-11 | 2020-12-04 | 史国民 | Box-type substation |
| CN112038959A (en) * | 2019-12-11 | 2020-12-04 | 史国民 | A box-type substation |
| CN112038959B (en) * | 2019-12-11 | 2022-09-27 | 东营市东营高新区配售电股份有限公司 | A box-type substation |
| CN111129992B (en) * | 2020-02-18 | 2021-07-20 | 安徽通昊电力设备有限公司 | An outdoor landscape buried power distribution cabinet |
| CN111129992A (en) * | 2020-02-18 | 2020-05-08 | 安徽通昊电力设备有限公司 | Bury formula switch board outdoor view |
| CN111431079B (en) * | 2020-04-22 | 2020-10-27 | 福清市满惠电子科技有限公司 | Transformer substation's prevention waterlogging device |
| CN111431079A (en) * | 2020-04-22 | 2020-07-17 | 福清市满惠电子科技有限公司 | Transformer substation's prevention waterlogging device |
| CN112350200A (en) * | 2020-12-23 | 2021-02-09 | 国网河南省电力公司桐柏县供电公司 | Bury power equipment's self-ventilation structure |
| CN112350200B (en) * | 2020-12-23 | 2023-09-15 | 国网河南省电力公司桐柏县供电公司 | Self-ventilation structure of underground power equipment |
| CN116950351A (en) * | 2023-07-25 | 2023-10-27 | 中交建筑集团有限公司 | Basement ventilation shaft flush with ground |
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Application publication date: 20181221 |