CN113629512B - Fireproof distributed photovoltaic grid-connected cabinet - Google Patents
Fireproof distributed photovoltaic grid-connected cabinet Download PDFInfo
- Publication number
- CN113629512B CN113629512B CN202110982210.5A CN202110982210A CN113629512B CN 113629512 B CN113629512 B CN 113629512B CN 202110982210 A CN202110982210 A CN 202110982210A CN 113629512 B CN113629512 B CN 113629512B
- Authority
- CN
- China
- Prior art keywords
- fire extinguishing
- grid
- extinguishing box
- connected cabinet
- box body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000005507 spraying Methods 0.000 claims abstract description 18
- 238000005192 partition Methods 0.000 claims abstract description 17
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims abstract description 16
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims abstract description 8
- 235000017557 sodium bicarbonate Nutrition 0.000 claims abstract description 8
- 230000001939 inductive effect Effects 0.000 claims description 2
- 230000009970 fire resistant effect Effects 0.000 claims 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 26
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 13
- 239000001569 carbon dioxide Substances 0.000 abstract description 13
- 238000000926 separation method Methods 0.000 abstract description 7
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 239000003063 flame retardant Substances 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000007921 spray Substances 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
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- 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
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0018—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
- A62C99/0027—Carbon dioxide extinguishers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- 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)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a fireproof distributed photovoltaic grid-connected cabinet, which relates to the technical field of grid-connected cabinets and comprises a grid-connected cabinet body, wherein at least one fire extinguishing box body is arranged at the top end of the grid-connected cabinet body; when the number of the fire extinguishing box bodies is two or more, the fire extinguishing box bodies are positioned on the same plane; the fire extinguishing box body is internally symmetrically hinged with a partition board, a thermal expansion type fire extinguishing medium is filled between the fire extinguishing box body and the partition board, and an elastic spraying component for sensing air pressure movement is arranged in the fire extinguishing box body. According to the invention, the thermal expansion fire extinguishing medium is arranged and is decomposed into carbon dioxide, the space air pressure in the upper cavity is gradually increased under the action of the carbon dioxide until the separation plates at two sides are driven to move downwards by overcoming the elastic force of the springs, and the carbon dioxide gas and sodium bicarbonate particles in the upper cavity can pass through the channels to descend into the grid-connected cabinet body in the separation process, so that the carbon dioxide gas covers the surface of a combustion object to play a flame retardant role.
Description
Technical Field
The invention relates to the technical field of grid-connected cabinets, in particular to a fireproof distributed photovoltaic grid-connected cabinet.
Background
The world conventional energy supply is increasingly in shortage, new energy is searched for to become a world hot spot problem, and among various new energy forms, solar power generation has the characteristics of no pollution, sustainability, large total amount, wide distribution, various application forms and the like, and is highly valued in all countries of the world. The application of the solar photovoltaic market will show wide field and diversified trend, photovoltaic products adapting to various demands will be continuously developed, besides a large-sized photovoltaic grid-connected photovoltaic power station, a photovoltaic power generation system combined with a building, a small-sized photovoltaic system, an off-grid photovoltaic system and the like will also be rapidly raised, and the demand of a photovoltaic grid-connected cabinet serving as a transfer device of a power grid and a power station is also continuously increased. The grid is needed to be integrated after the photovoltaic power generation, the grid-connected cabinet is needed to be connected to the grid, and because a plurality of photovoltaic fields are distributed in different areas, each photovoltaic field needs to be matched with the grid-connected cabinet, but because the grid-connected cabinet is usually located in a place with higher temperature, spontaneous combustion phenomenon easily occurs when certain electrical elements are abnormal, and therefore a fireproof distributed photovoltaic grid-connected cabinet is urgently needed to solve the problems.
Disclosure of Invention
The invention aims to solve the problems, and provides a fireproof distributed photovoltaic grid-connected cabinet.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the fireproof distributed photovoltaic grid-connected cabinet comprises a grid-connected cabinet body, wherein at least one fire extinguishing box body is arranged at the top end of the grid-connected cabinet body;
when the number of the fire extinguishing box bodies is two or more, the fire extinguishing box bodies are positioned on the same plane;
the fire extinguishing box body is internally and symmetrically hinged with a baffle plate, a thermal expansion type fire extinguishing medium is filled between the fire extinguishing box body and the baffle plate, and an elastic spraying component for inducing air pressure movement is arranged in the fire extinguishing box body;
the elastic spraying component is normally closed, the thermal expansion type fire extinguishing medium is decomposed into gas at 50 ℃ and above, the gas drives the elastic spraying component to move, the elastic spraying component drives the two separation plates to be separated from each other to generate gaps, and the gas is finally output into the grid-connected cabinet body.
Optionally, the thermal expansion fire extinguishing medium adopts sodium bicarbonate.
Optionally, the elastic spraying component comprises a rod body, a sliding block, a sliding chute and a spring;
the rod body is axially provided with a channel with two communicated sides, the rod body is vertically and slidably connected to the fire extinguishing box body, and the rod body is sleeved with a spring;
the upper end of the rod body is symmetrically provided with two sliding grooves, a sliding block is connected to the sliding grooves in a sliding mode, and the sliding block is connected with the partition plate in a sliding mode.
Optionally, a stop block is arranged on one side of the sliding groove, which is outside the sliding groove.
The invention has the following advantages:
according to the invention, by arranging the thermal expansion fire extinguishing medium, when the temperature in the photovoltaic grid-connected cabinet is abnormal and the temperature of the grid-connected cabinet body is higher, the thermal expansion fire extinguishing medium starts to be decomposed into carbon dioxide, the space air pressure in the upper cavity is gradually increased under the action of the carbon dioxide until the separation plates at two sides are driven to move downwards by overcoming the elastic force of the springs, and the carbon dioxide gas and sodium bicarbonate particles in the upper cavity can pass through the channels to descend into the grid-connected cabinet body in the separation process, so that the carbon dioxide gas covers the surface of a combustion object to play a role in flame retardance.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a fire extinguishing box according to the present invention;
FIG. 3 is a schematic view of an elastic spray assembly according to the present invention.
In the figure: the fire extinguishing system comprises a grid-connected cabinet body 1, a fire extinguishing box body 2, a partition board 3, an elastic spraying component 4, a rod body 41, a sliding block 42, a stop block 43, a sliding groove 44, a channel 45 and a spring 46.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-3, a fireproof distributed photovoltaic grid-connected cabinet comprises a grid-connected cabinet body 1, wherein the grid-connected cabinet body 1 can adopt a conventional rectangular cabinet body structure in the market.
The top of the grid-connected cabinet body 1 is provided with at least one fire extinguishing box body 2, and the fire extinguishing box body 2 is made of a metal material with better heat conductivity.
The fire extinguishing box body consists of a box body 22, an upper cavity 21 and a lower cavity 23, wherein the upper cavity 21 and the lower cavity 23 take a partition plate 3 as a dividing line, and a thermal expansion type fire extinguishing medium is positioned in the upper cavity 21.
When the number of the fire extinguishing boxes 2 is two or more, the fire extinguishing boxes 2 are positioned on the same plane, as shown in fig. 2, so that the fire retardant gas can be output into the grid-connected cabinet 1 in the largest range.
The fire extinguishing box body 2 is internally symmetrically hinged with the partition plates 3, and one ends of the partition plates 3, which are close to each other, are in arc-shaped structures, so that the two are prevented from being blocked when in contact.
The thermal expansion type fire extinguishing medium is filled between the fire extinguishing box body 2 and the partition plate 3, sodium bicarbonate is adopted as the thermal expansion type fire extinguishing medium, and the sodium bicarbonate gradually starts to decompose carbon dioxide gas and starts to drive the partition plate 3 to move downwards at 50 ℃ and finally is input into the elastic spraying component 4.
An elastic spraying component 4 for sensing air pressure movement is arranged in the fire extinguishing box body 2. The elastic spraying component 4 comprises a rod body 41, a sliding block 42, a sliding chute 44 and a spring 46, and is specifically as follows:
the rod 41 is axially provided with a channel 45 with two communicated sides, the rod 41 is vertically and slidably connected to the fire extinguishing box body 2, a spring 46 is sleeved on the rod 41, and the spring 46 provides elasticity for the rod 41, so that the rod 41 is driven to be in a jacking state by overcoming the gravity of the sliding groove 44, the partition plate 3 and the thermal expansion fire extinguishing medium, namely, the partition plates 3 on the two sides are parallel.
Two sliding grooves 44 are symmetrically formed in the upper end of the rod body 41, a sliding block 42 is connected to the sliding grooves 44 in a sliding mode, and the sliding block 42 is connected with the partition plate 3 in a sliding mode.
The side of the chute 44, which is outside, is provided with a stop block 43, and the stop block 43 plays a role in shielding and prevents the sliding block 42 from falling off.
The elastic spraying component 4 is normally closed, the thermal expansion type fire extinguishing medium is decomposed into gas at 50 ℃ and above, the gas drives the elastic spraying component 4 to move, the elastic spraying component 4 drives the two partition boards 3 to be separated from each other to generate gaps, and the gas is finally output into the grid-connected cabinet body 1.
When the temperature in the photovoltaic grid-connected cabinet is abnormal until the temperature of the grid-connected cabinet body 1 reaches more than 50 ℃, heat is transferred into the fire extinguishing box body 2, sodium bicarbonate starts to be decomposed into carbon dioxide, the space air pressure in the upper cavity 21 is gradually increased under the action of the carbon dioxide until the separation plates 3 on two sides are driven to move downwards by overcoming the elastic force of the springs 46, carbon dioxide gas and sodium bicarbonate particles in the upper cavity 21 can pass through the channels 45 to descend into the grid-connected cabinet body 1 in the separation process, and the carbon dioxide gas covers the surface of a combustion object to play a flame retardant role.
In the foregoing, the preferred embodiments of the present invention are not intended to be exhaustive, but the scope of the invention is not limited thereto, and any person skilled in the art, within the scope of the present invention, should be covered by the protection scope of the present invention by equally replacing or changing the technical scheme and the inventive concept thereof.
Claims (3)
1. The fireproof distributed photovoltaic grid-connected cabinet comprises a grid-connected cabinet body (1) and is characterized in that at least one fire extinguishing box body (2) is arranged at the top end of the grid-connected cabinet body (1);
when the number of the fire extinguishing box bodies (2) is two or more, the fire extinguishing box bodies (2) are positioned on the same plane;
the fire extinguishing box body (2) is internally symmetrically hinged with a partition board (3), a thermal expansion type fire extinguishing medium is filled between the fire extinguishing box body (2) and the partition board (3), and an elastic spraying component (4) for inducing air pressure movement is arranged in the fire extinguishing box body (2);
the elastic spraying component (4) is normally closed, the thermal expansion type fire extinguishing medium is decomposed into gas at 50 ℃ and above, the gas drives the elastic spraying component (4) to move, the elastic spraying component (4) drives the two partition boards (3) to be separated from each other to generate gaps, and the gas is finally output into the grid-connected cabinet body (1);
the elastic spraying component (4) comprises a rod body (41), a sliding block (42), a sliding groove (44) and a spring (46);
the rod body (41) is axially provided with a channel (45) with two communicated sides, the rod body (41) is vertically and slidably connected to the fire extinguishing box body (2), and the rod body (41) is sleeved with a spring (46);
two sliding grooves (44) are symmetrically formed in the upper end of the rod body (41), sliding blocks (42) are connected to the sliding grooves (44) in a sliding mode, and the sliding blocks (42) are connected with the partition plates (3) in a sliding mode.
2. The fire-resistant distributed photovoltaic grid-connected cabinet according to claim 1, wherein the thermal expansion fire extinguishing medium is sodium bicarbonate.
3. The fireproof distributed photovoltaic grid-connected cabinet according to claim 1, wherein a stop block (43) is arranged on the outer side of the chute (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110982210.5A CN113629512B (en) | 2021-08-25 | 2021-08-25 | Fireproof distributed photovoltaic grid-connected cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110982210.5A CN113629512B (en) | 2021-08-25 | 2021-08-25 | Fireproof distributed photovoltaic grid-connected cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113629512A CN113629512A (en) | 2021-11-09 |
| CN113629512B true CN113629512B (en) | 2023-10-24 |
Family
ID=78387674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110982210.5A Active CN113629512B (en) | 2021-08-25 | 2021-08-25 | Fireproof distributed photovoltaic grid-connected cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113629512B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110021886A (en) * | 2019-04-02 | 2019-07-16 | 安徽富煌电力装备科技有限公司 | A kind of grid-connected cabinet of fire-proof type |
| CN111769726A (en) * | 2020-07-13 | 2020-10-13 | 合肥酷软科技信息咨询有限公司 | Switching power supply structure for power equipment |
| CN112473048A (en) * | 2020-11-25 | 2021-03-12 | 宁波谦屹节能科技有限公司 | Dry-type transformer fire prevention mechanism |
| CN112821214A (en) * | 2021-03-02 | 2021-05-18 | 何静伟 | Fire extinguishing type cabinet door used for power distribution cabinet |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101938885B1 (en) * | 2012-06-28 | 2019-01-15 | 마리오프 코포레이션 오와이 | Thermal expansion assembly for water mist fire suppression system |
-
2021
- 2021-08-25 CN CN202110982210.5A patent/CN113629512B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110021886A (en) * | 2019-04-02 | 2019-07-16 | 安徽富煌电力装备科技有限公司 | A kind of grid-connected cabinet of fire-proof type |
| CN111769726A (en) * | 2020-07-13 | 2020-10-13 | 合肥酷软科技信息咨询有限公司 | Switching power supply structure for power equipment |
| CN112473048A (en) * | 2020-11-25 | 2021-03-12 | 宁波谦屹节能科技有限公司 | Dry-type transformer fire prevention mechanism |
| CN112821214A (en) * | 2021-03-02 | 2021-05-18 | 何静伟 | Fire extinguishing type cabinet door used for power distribution cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113629512A (en) | 2021-11-09 |
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