CN113725767B - Draw-out type switch cabinet - Google Patents
Draw-out type switch cabinet Download PDFInfo
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- CN113725767B CN113725767B CN202110986335.5A CN202110986335A CN113725767B CN 113725767 B CN113725767 B CN 113725767B CN 202110986335 A CN202110986335 A CN 202110986335A CN 113725767 B CN113725767 B CN 113725767B
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- cabinet
- drawer
- pressure relief
- pressure
- cabinet body
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- 238000007789 sealing Methods 0.000 claims abstract description 18
- 230000009471 action Effects 0.000 claims abstract description 7
- 230000017525 heat dissipation Effects 0.000 claims description 17
- 229910001220 stainless steel Inorganic materials 0.000 claims description 11
- 239000010935 stainless steel Substances 0.000 claims description 11
- 239000004831 Hot glue Substances 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 2
- 238000004880 explosion Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 239000000428 dust Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000004677 Nylon Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 230000008520 organization Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009421 internal insulation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/173—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal drawer type
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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
-
- 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
- H02B1/303—Bases or feet
-
- 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
- H02B1/306—Accessories, e.g. windows
-
- 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
- H02B1/32—Mounting of devices therein
-
- 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
- H02B1/32—Mounting of devices therein
- H02B1/34—Racks
- H02B1/36—Racks with withdrawable units
-
- 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
- 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
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention relates to the field of electrical equipment and discloses a draw-out type switch cabinet, which comprises a cabinet body, wherein a plurality of cabinet openings are formed in the front surface of the cabinet body, the cabinet openings are used for placing corresponding drawer cabinets, all the cabinet openings of the cabinet body are mutually communicated, and after the cabinet openings are placed in the corresponding drawer cabinets, a channel communicated with all the cabinet openings is formed between a back plate of the cabinet body and a back plate of a drawer cabinet; the top surface, the back surface and the side surfaces of the cabinet body are of an integral sealing structure; the drawer cabinet at the lowest layer of the cabinet body is a pressure relief drawer cabinet, and the pressure relief drawer cabinet is arranged in the cabinet opening in a sliding manner. When short-circuit accidents occur in the draw-out type switch cabinet, the temperature and the pressure of the gas in the switch cabinet are increased, the pressure-release drawer cabinet slides to be separated from the cabinet body under the action of high-temperature high-pressure gas, and the cabinet opening is opened to form a pressure-release passage opening, so that the high-temperature high-pressure gas accumulated due to the short-circuit accidents can be rapidly discharged, and the deformation even the explosion of the draw-out type switch cabinet is avoided.
Description
Technical Field
The invention relates to the field of electrical equipment, in particular to a draw-out type switch cabinet.
Background
The switch cabinet is an electrical device and mainly used for switching, controlling and protecting electric equipment in the process of generating, transmitting, distributing and converting electric energy of a power system. The components in the switch cabinet mainly comprise a breaker, a disconnecting switch, a load switch, an operating mechanism, a transformer, various protection devices and the like. The switch cabinets are classified into a movable switch cabinet and a fixed switch cabinet according to the installation mode of the circuit breaker; or according to the different cabinet structures, the switch cabinet can be divided into an open switch cabinet, a metal closed switch cabinet and a metal closed armored switch cabinet; according to different voltage levels, the high-voltage switch cabinet, the medium-voltage switch cabinet, the low-voltage switch cabinet and the like can be further divided. The method is mainly suitable for various different occasions such as power plants, transformer substations, petrochemical industry, metallurgical steel rolling, light industry textile, factories and mining enterprises, residential communities, high-rise buildings and the like.
The functional chambers of the draw-out type switch cabinet are mutually isolated, and the compartments are divided into a functional unit chamber, a bus chamber and a cable chamber, wherein the functions of the chambers are relatively independent. The frame comprises a full-assembled structure and a partial (side frame and cross beam) welded structure. The drawer of the same functional unit has good interchangeability. The use environment is mostly used for the environment air temperature not higher than +50 ℃ and not lower than-10 ℃. The inclination with the vertical plane is not more than 5% during installation, and the whole cabinet row is relatively flat (accords with the GBJ232-82 standard).
The draw-out type switch cabinet is suitable for electric energy conversion, distribution and control of power, distribution and control centers, compensation and the like of low-voltage distribution systems of power plants, power substations, petrochemical departments, factories and mining enterprises, high-rise buildings and the like. In the using process of the draw-out type switch cabinet, a loop short circuit caused by internal arc faults is the most serious fault of the switch cabinet, and the arc generates a thermal effect and a pressure effect and generates a large amount of high-temperature high-pressure gas in a short period. Failure to release effectively in a very short period of time can cause the switchgear to burst.
The existing pressure relief device is generally provided with a cover plate at the top of the switch cabinet, and the cover plate is fixed by nylon screws. When a short-circuit accident occurs in the switch cabinet, the temperature and pressure of the gas in the switch cabinet are increased, and the nylon screw is melted due to the high-temperature gas in the switch cabinet to open the cover plate for pressure relief. However, the traditional pressure relief device is affected by the size of the cover plate, so that the high-temperature and high-pressure gas cannot be timely removed due to the small pressure relief channel, and even the danger of explosion caused by deformation of the switch cabinet is avoided; in addition, in the process of melting the nylon screw, the high-temperature and high-pressure gas in the switch cabinet is further accumulated, and the nylon screw is not completely melted yet, but the switch cabinet cannot bear the pressure of the high-temperature and high-pressure gas in the switch cabinet to explode. In addition, because the cover plate needs to be guaranteed to effectively release pressure, sealing measures cannot be set at the frame of the cover plate, dust is easy to enter the high-voltage compartment to pollute the high-voltage conductor, and particularly when the switch cabinet is used outdoors, rainwater can directly invade the switch cabinet to influence the internal insulation strength, and short-circuit faults are increased.
Disclosure of Invention
The invention aims to provide a pull-out type switch cabinet, which can quickly and effectively release a large amount of high-temperature and high-pressure gas accumulated in the pull-out type switch cabinet in a short period and prevent the switch cabinet from being burst.
In order to achieve the above purpose, the invention adopts the following technical scheme: the draw-out type switch cabinet comprises a cabinet body, wherein a plurality of cabinet openings are formed in the front face of the cabinet body, the cabinet openings are used for placing corresponding drawer cabinets, all the cabinet openings of the cabinet body are mutually communicated, and after the corresponding drawer cabinets are placed in the cabinet openings, channels for communicating all the cabinet openings are formed between a back plate of the cabinet body and a back plate of the drawer cabinet; the top surface, the back surface and the side surfaces of the cabinet body are of an integral sealing structure; the drawer cabinet at the lowest layer of the cabinet body is a pressure relief drawer cabinet, and the pressure relief drawer cabinet is arranged in the cabinet opening in a sliding manner.
The technical scheme is that: because each cabinet mouth of the cabinet body is communicated with each other, after each cabinet mouth is put into the corresponding drawer cabinet, a channel communicated with each cabinet mouth is formed between the back plate of the cabinet body and the back plate of the drawer cabinet, and thus, a communicated channel is formed between the back plate and the back plate. When a short-circuit accident occurs in the draw-out type switch cabinet, the temperature and pressure of the gas in the switch cabinet are increased, and the high-temperature and high-pressure gas is converged in the channel between the back plate and the back plate due to the channel, so that the gas diffuses outwards rapidly to release energy. Because the drawer cabinet at the lowest layer of the cabinet body is specially arranged as the pressure relief drawer cabinet, and the pressure relief drawer cabinet is arranged in the cabinet opening in a sliding manner, the pressure relief drawer cabinet slides out of the cabinet body under the action of high-temperature high-pressure gas, and the cabinet opening is opened to form a pressure relief channel opening, so that the high-temperature high-pressure gas accumulated due to the occurrence of short-circuit accidents can be rapidly discharged, and the deformation and even the explosion of the extraction type switch cabinet are avoided. In this scheme, utilized the cabinet body structure of pull-out type cubical switchboard itself, regard as urgent pressure release mouth with the drawer cabinet innovation ground of cabinet body lower floor, not only have higher security, can not change the design structure of the cabinet body on the whole moreover. Furthermore, the top surface, the back and the side of the cabinet body are of an integral sealing structure, dust does not enter the high-voltage compartment at the upper part of the cabinet body to pollute the high-voltage conductor, and particularly when the cabinet is used outdoors, rainwater cannot directly invade the inside of the switch cabinet, so that the insulation strength of the inside is improved, and the occurrence probability of short-circuit faults is reduced.
Preferably, as a modification, the sizes of the cabinet openings on the front surface of the cabinet body are the same. The drawer cabinet is provided with the same size, so that the drawer cabinet and the decompression drawer cabinet can be processed in a unified size, and the processing cost is reduced.
Preferably, as an improvement, the cabinet body is provided with at least four layers of cabinet openings, and each layer of cabinet opening is provided with at least two.
Preferably, as an improvement, the rear plate of the pressure relief drawer cabinet is full of the section of the cabinet opening where the pressure relief drawer cabinet is located. The rear plate is full of the section of the cabinet opening, so that the pressure of the pressure relief drawer cabinet can be increased by pushing the gas in the cabinet body, and the pressure relief drawer cabinet can conveniently slide out.
Preferably, as an improvement, the pressure relief drawer cabinet is a closed cube, and a vertical supporting plate is arranged in the pressure relief drawer cabinet. The enclosed construction is convenient for pressure release drawer cabinet atress roll-off, and the vertical support board of inside setting can increase pressure release drawer cabinet's structural strength, can regard as the fin to increase the heat dissipation simultaneously.
Preferably, as an improvement, a partition plate is arranged above the pressure relief drawer cabinet in the cabinet body, and separates the pressure relief drawer cabinet from the drawer cabinet adjacent to the upper side.
Preferably, as an improvement, the back plate of the cabinet body is fixed with a pressure spring at a position corresponding to the back plate of the pressure relief drawer cabinet, and the free end of the pressure spring is fixed on the back plate after being compressed by hot melt adhesive. This setting can be through pressure spring compression energy storage, under high temperature high pressure gas effect, and the hot melt adhesive melts rapidly, releases the pressure spring, pops out the pressure release drawer cabinet fast through the pressure spring to further avoid taking place because of the untimely cabinet body deformation that causes of pressure release takes place to explode the split even.
Preferably, as an improvement, sealing rubber strips are arranged around the panel of the pressure relief drawer cabinet. The sealing rubber strip can effectively improve the sealing performance of the gap, and particularly prevent rainwater from invading in outdoor use.
Preferably, as an improvement, a panel of the pressure relief drawer cabinet is provided with a heat radiation opening inclined towards the lower side. The heat dissipation effect during use can be increased by arranging the heat dissipation opening inclined towards the lower side of the outer side, and the heat dissipation of the gas in the cabinet body is facilitated.
Preferably, as an improvement, the heat dissipation port is provided with a one-way baffle plate which is opened outwards. The unidirectional baffle is arranged, so that the unidirectional baffle can only be pushed away after being boosted by gas from the inside, the heat dissipation of the inside is facilitated, and meanwhile, the outside dust is prevented from entering the inside of the cabinet body for a long time.
Drawings
Fig. 1 is a schematic structural view of an embodiment of a draw-out switchgear of the present invention.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: cabinet body 1, drawer cabinet 2, pressure release drawer cabinet 3.
Example 1 is substantially as shown in figure 1: the draw-out type switch cabinet comprises a cabinet body 1, 6 cabinet openings are formed in the front face of the cabinet body 1, each cabinet opening is used for placing a corresponding drawer cabinet 2, all cabinet openings of the cabinet body 1 are mutually communicated, and after the corresponding drawer cabinet 2 is placed in each cabinet opening, a channel for communicating all cabinet openings is formed between a backboard of the cabinet body 1 and a rear board of the drawer cabinet 2. The top surface, the back surface and the side surfaces of the cabinet body 1 are all integrally stainless steel plates and are mutually fixed by welding and sealing. The two drawer cabinets at the lowest layer of the cabinet body 1 are pressure relief drawer cabinets 3, and the pressure relief drawer cabinets 3 can be directly arranged in the cabinet opening in a sliding manner or can be installed through a slideway, so that the complete extraction of the pressure relief drawer cabinets 3 is not affected. The size of the pressure relief drawer cabinet 3 is the same as that of the upper drawer cabinet 2, so that the pressure relief drawer cabinet 2 and the pressure relief drawer cabinet 3 can be processed in a unified size, and the processing cost is reduced. The rear plate of the pressure relief drawer cabinet 3 can be filled with the section of the cabinet opening. Of course, the pressure release drawer cabinet 3 can also be made into a closed cube structure, the vertical stainless steel support plate is fixed in the pressure release drawer cabinet 3, the structural strength of the pressure release drawer cabinet 3 can be increased, and meanwhile, the stainless steel support plate can be used as a radiating fin to increase heat dissipation. The top that is located pressure release drawer cabinet 3 in cabinet body 1 is equipped with the division board, and the division board separates pressure release drawer cabinet 3 and the adjacent drawer cabinet 2 in top.
In the specific implementation process, as all cabinet openings of the cabinet body 1 are mutually communicated, after all cabinet openings are put into the corresponding drawer cabinets 2, channels for communicating all cabinet openings are formed between the back plate of the cabinet body 1 and the back plate of the drawer cabinet 2, and thus, a communicated channel is formed between the back plate and the back plate. When a short-circuit accident occurs in the draw-out type switch cabinet, the temperature and pressure of the gas in the switch cabinet are increased, and the high-temperature and high-pressure gas is converged in the channel between the back plate and the back plate due to the channel, so that the gas diffuses outwards rapidly to release energy. Because the drawer cabinet at the lowest layer of the cabinet body 1 is specially arranged as the pressure relief drawer cabinet 3, and the pressure relief drawer cabinet 3 is arranged in the cabinet opening in a sliding manner, the pressure relief drawer cabinet 3 slides out of the cabinet body 1 under the action of high-temperature high-pressure gas, and the cabinet opening is opened to form a pressure relief passage opening, so that the high-temperature high-pressure gas accumulated due to the short-circuit accident can be rapidly discharged, and the deformation and even the burst of the pull-out type switch cabinet are avoided. In this scheme, utilized the cabinet body 1 structure of pull-out type cubical switchboard itself, regard as urgent pressure release mouth with the drawer cabinet innovation formula of cabinet body 1 lower floor, not only have higher security, can not change the project organization of cabinet body 1 on the whole moreover. Furthermore, the top surface, the back and the side of the cabinet body 1 are of an integral sealing structure, dust does not enter the high-voltage compartment at the upper part of the cabinet body 1 to pollute the high-voltage conductor, and particularly when the cabinet is used outdoors, rainwater cannot directly invade the inside of the cabinet body 1, so that the insulation strength of the inside is improved, and the occurrence probability of short-circuit faults is reduced.
Example 2
Example 2 is substantially as shown in figure 1: the draw-out type switch cabinet comprises a cabinet body 1, 6 cabinet openings are formed in the front face of the cabinet body 1, each cabinet opening is used for placing a corresponding drawer cabinet 2, all cabinet openings of the cabinet body 1 are mutually communicated, and after the corresponding drawer cabinet 2 is placed in each cabinet opening, a channel for communicating all cabinet openings is formed between a backboard of the cabinet body 1 and a rear board of the drawer cabinet 2. The top surface, the back surface and the side surfaces of the cabinet body 1 are all integrally stainless steel plates and are mutually fixed by welding and sealing. The two drawer cabinets at the lowest layer of the cabinet body 1 are pressure relief drawer cabinets 3, and the pressure relief drawer cabinets 3 can be directly arranged in the cabinet opening in a sliding manner or can be installed through a slideway, so that the complete extraction of the pressure relief drawer cabinets 3 is not affected. The size of the pressure relief drawer cabinet 3 is the same as that of the upper drawer cabinet 2, so that the pressure relief drawer cabinet 2 and the pressure relief drawer cabinet 3 can be processed in a unified size, and the processing cost is reduced. The rear plate of the pressure relief drawer cabinet 3 can be filled with the section of the cabinet opening. Of course, the pressure release drawer cabinet 3 can also be made into a closed cube structure, the vertical stainless steel support plate is fixed in the pressure release drawer cabinet 3, the structural strength of the pressure release drawer cabinet 3 can be increased, and meanwhile, the stainless steel support plate can be used as a radiating fin to increase heat dissipation. The top that is located pressure release drawer cabinet 3 in cabinet body 1 is equipped with the division board, and the division board separates pressure release drawer cabinet 3 and the adjacent drawer cabinet 2 in top.
As an improvement, the back plate of the cabinet body 1 is fixed with a pressure spring at the position corresponding to the back plate of the pressure relief drawer cabinet 3, and the free end of the pressure spring is fixed on the back plate after being compressed by hot melt adhesive. This setting can be through pressure spring compression energy storage, under high temperature high pressure gas effect, and the hot melt adhesive melts rapidly, releases the pressure spring, pops out fast with pressure release drawer cabinet 3 through the pressure spring to further avoid taking place because of the untimely cabinet body 1 deformation that causes of pressure release takes place to explode the crack even.
In the specific implementation process, as all cabinet openings of the cabinet body 1 are mutually communicated, after all cabinet openings are put into the corresponding drawer cabinets 2, channels for communicating all cabinet openings are formed between the back plate of the cabinet body 1 and the back plate of the drawer cabinet 2, and thus, a communicated channel is formed between the back plate and the back plate. When a short-circuit accident occurs in the draw-out type switch cabinet, the temperature and pressure of the gas in the switch cabinet are increased, and the high-temperature and high-pressure gas is converged in the channel between the back plate and the back plate due to the channel, so that the gas diffuses outwards rapidly to release energy. Because the drawer cabinet at the lowest layer of the cabinet body 1 is specially arranged as the pressure relief drawer cabinet 3, and the pressure relief drawer cabinet 3 is arranged in the cabinet opening in a sliding manner, under the action of high-temperature high-pressure gas, the hot melt adhesive is rapidly melted, the pressure spring is released, the pressure relief drawer cabinet 3 is rapidly ejected out of the cabinet body 1 under the combined action of the pressure spring and the high-temperature high-pressure gas, and the cabinet opening is opened to form a pressure relief passage opening, so that the high-temperature high-pressure gas accumulated due to the short-circuit accident can be rapidly discharged, and the deformation and even the burst of the pull-out type switch cabinet are avoided. In this scheme, utilized the cabinet body 1 structure of pull-out type cubical switchboard itself, regard as urgent pressure release mouth with the drawer cabinet innovation formula of cabinet body 1 lower floor, not only have higher security, can not change the project organization of cabinet body 1 on the whole moreover. Furthermore, the top surface, the back and the side of the cabinet body 1 are of an integral sealing structure, dust does not enter the high-voltage compartment at the upper part of the cabinet body 1 to pollute the high-voltage conductor, and particularly when the cabinet is used outdoors, rainwater cannot directly invade the inside of the cabinet body 1, so that the insulation strength of the inside is improved, and the occurrence probability of short-circuit faults is reduced.
Example 3
Example 3 is substantially as shown in figure 1: the draw-out type switch cabinet comprises a cabinet body 1, 6 cabinet openings are formed in the front face of the cabinet body 1, each cabinet opening is used for placing a corresponding drawer cabinet 2, all cabinet openings of the cabinet body 1 are mutually communicated, and after the corresponding drawer cabinet 2 is placed in each cabinet opening, a channel for communicating all cabinet openings is formed between a backboard of the cabinet body 1 and a rear board of the drawer cabinet 2. The top surface, the back surface and the side surfaces of the cabinet body 1 are all integrally stainless steel plates and are mutually fixed by welding and sealing. The two drawer cabinets at the lowest layer of the cabinet body 1 are pressure relief drawer cabinets 3, and the pressure relief drawer cabinets 3 can be directly arranged in the cabinet opening in a sliding manner or can be installed through a slideway, so that the complete extraction of the pressure relief drawer cabinets 3 is not affected. The size of the pressure relief drawer cabinet 3 is the same as that of the upper drawer cabinet 2, so that the pressure relief drawer cabinet 2 and the pressure relief drawer cabinet 3 can be processed in a unified size, and the processing cost is reduced. The rear plate of the pressure relief drawer cabinet 3 can be filled with the section of the cabinet opening. Of course, the pressure release drawer cabinet 3 can also be made into a closed cube structure, the vertical stainless steel support plate is fixed in the pressure release drawer cabinet 3, the structural strength of the pressure release drawer cabinet 3 can be increased, and meanwhile, the stainless steel support plate can be used as a radiating fin to increase heat dissipation. The top that is located pressure release drawer cabinet 3 in cabinet body 1 is equipped with the division board, and the division board separates pressure release drawer cabinet 3 and the adjacent drawer cabinet 2 in top. Sealing rubber strips are arranged around the panel of the pressure relief drawer cabinet 3. The sealing rubber strip can effectively improve the sealing performance of the gap, and particularly prevent rainwater from invading in outdoor use. The panel of the pressure release drawer cabinet 3 is provided with a heat radiation opening which is inclined towards the outside and the lower part. The heat dissipation effect during use can be increased by arranging the heat dissipation opening inclined towards the lower side of the outer side, and the heat dissipation of the gas in the cabinet body 1 is facilitated. The heat dissipation opening is provided with a one-way baffle plate which is opened outwards.
In the specific implementation process, as all cabinet openings of the cabinet body 1 are mutually communicated, after all cabinet openings are put into the corresponding drawer cabinets 2, channels for communicating all cabinet openings are formed between the back plate of the cabinet body 1 and the back plate of the drawer cabinet 2, and thus, a communicated channel is formed between the back plate and the back plate. When a short-circuit accident occurs in the draw-out type switch cabinet, the temperature and pressure of the gas in the switch cabinet are increased, and the high-temperature and high-pressure gas is converged in the channel between the back plate and the back plate due to the channel, so that the gas diffuses outwards rapidly to release energy. Because the drawer cabinet at the lowest layer of the cabinet body 1 is specially arranged as the pressure relief drawer cabinet 3, and the pressure relief drawer cabinet 3 is arranged in the cabinet opening in a sliding manner, the pressure relief drawer cabinet 3 slides out of the cabinet body 1 under the action of high-temperature high-pressure gas, and the cabinet opening is opened to form a pressure relief passage opening, so that the high-temperature high-pressure gas accumulated due to the short-circuit accident can be rapidly discharged, and the deformation and even the burst of the pull-out type switch cabinet are avoided. In this scheme, utilized the cabinet body 1 structure of pull-out type cubical switchboard itself, regard as urgent pressure release mouth with the drawer cabinet innovation formula of cabinet body 1 lower floor, not only have higher security, can not change the project organization of cabinet body 1 on the whole moreover. Furthermore, the top surface, the back surface and the side surface of the cabinet body 1 are of an integral sealing structure, a heat radiation opening inclined towards the outside and the lower side is formed in the panel of the pressure relief drawer cabinet 3, and a one-way baffle plate which is opened towards the outside is arranged at the heat radiation opening. The unidirectional baffle is arranged, so that the unidirectional baffle can only be pushed away after being boosted by gas from the inside, the heat dissipation of the inside is facilitated, the high-voltage compartment on the upper part of the cabinet body 1 is not polluted by external dust, particularly, when the outdoor use is carried out, rainwater cannot directly invade the inside of the cabinet body 1, the insulation strength of the inside is increased, and the occurrence rate of short circuit faults is reduced.
The foregoing is merely exemplary of the present application, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present application, and in the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "fixed," etc. are to be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (7)
1. Draw-out type cubical switchboard, including the cabinet body, its characterized in that: the front surface of the cabinet body is provided with a plurality of cabinet openings, the cabinet openings are used for placing corresponding drawer cabinets, all the cabinet openings of the cabinet body are mutually communicated, and after the corresponding drawer cabinets are placed in the cabinet openings, a channel for communicating all the cabinet openings is formed between the back plate of the cabinet body and the back plate of the drawer cabinet; the top surface, the back surface and the side surfaces of the cabinet body are of an integral sealing structure; the drawer cabinet at the lowest layer of the cabinet body is a pressure relief drawer cabinet, and the pressure relief drawer cabinet is arranged in the cabinet opening in a sliding manner; the structure strength of the pressure relief drawer cabinet is increased by fixing a vertical stainless steel supporting plate inside the pressure relief drawer cabinet, and the stainless steel supporting plate is used as a radiating fin to increase heat dissipation; the back plate of the cabinet body is positioned at a position corresponding to the back plate of the pressure relief drawer cabinet, and a pressure spring is fixed at the back plate, and the free end of the pressure spring is compressed by hot melt adhesive and then fixed on the back plate; a panel of the pressure relief drawer cabinet is provided with a heat dissipation opening which is inclined outwards and downwards, and a unidirectional baffle which is opened outwards is arranged at the heat dissipation opening; when a short-circuit accident occurs in the draw-out type switch cabinet, the temperature and pressure of the gas in the switch cabinet are increased, the high-temperature and high-pressure gas is concentrated in the channel, the high-temperature and high-pressure gas is diffused outwards to release energy rapidly, the pressure release drawer cabinet slides out of the cabinet body under the action of the high-temperature and high-pressure gas, and the cabinet opening is opened to form a pressure release channel opening.
2. The draw-out switchgear as claimed in claim 1, wherein: the size of each cabinet opening on the front side of the cabinet body is the same.
3. The draw-out switchgear as claimed in claim 1 or 2, wherein: the cabinet body is equipped with four layer cabinet mouths at least, and every layer cabinet mouth is equipped with two at least.
4. The draw-out switchgear as claimed in claim 1, wherein: the rear plate of the pressure relief drawer cabinet is full of the section of the cabinet opening where the pressure relief drawer cabinet is located.
5. The draw-out switchgear as claimed in claim 1 or 4, wherein: the pressure relief drawer cabinet is a closed cube, and a vertical supporting plate is arranged in the pressure relief drawer cabinet.
6. The draw-out switchgear as claimed in claim 1 or 2, wherein: the pressure relief drawer cabinet is characterized in that a partition plate is arranged above the pressure relief drawer cabinet in the cabinet body and separates the pressure relief drawer cabinet from the drawer cabinet adjacent to the upper side.
7. The draw-out switchgear as claimed in claim 1, wherein: sealing rubber strips are arranged around the panel of the pressure relief drawer cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110986335.5A CN113725767B (en) | 2021-08-25 | 2021-08-25 | Draw-out type switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110986335.5A CN113725767B (en) | 2021-08-25 | 2021-08-25 | Draw-out type switch cabinet |
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| Publication Number | Publication Date |
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| CN113725767A CN113725767A (en) | 2021-11-30 |
| CN113725767B true CN113725767B (en) | 2024-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110986335.5A Active CN113725767B (en) | 2021-08-25 | 2021-08-25 | Draw-out type switch cabinet |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231487A (en) * | 2011-04-15 | 2011-11-02 | 山东爱普电气设备有限公司 | Pressure-relief and antibump apparatus of low-voltage draw-out switch cabinet |
| CN113054581A (en) * | 2021-04-13 | 2021-06-29 | 浙江兆山电器有限公司 | Mls low pressure pull-out type cubical switchboard |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009006951A1 (en) * | 2009-01-30 | 2010-08-05 | Igel Elektronik Gmbh | Medium or high voltage switchgear |
| RU2454766C2 (en) * | 2010-05-24 | 2012-06-27 | Закрытое акционерное общество "Межрегиональное Производственное Объединение Технического Комплектования "Технокомплект" | Cabinet of cubicle switchboard |
| CN104283132B (en) * | 2013-07-02 | 2016-12-07 | 艾默生网络能源有限公司 | A kind of anti-explosion electric gas holder |
| CN212085458U (en) * | 2020-03-23 | 2020-12-04 | 陈水明 | Low-voltage switch cabinet convenient to winding displacement wiring |
| CN213753564U (en) * | 2020-11-19 | 2021-07-20 | 江苏百诺电力设备有限公司 | Drawout type switch cabinet with good sealing performance |
-
2021
- 2021-08-25 CN CN202110986335.5A patent/CN113725767B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231487A (en) * | 2011-04-15 | 2011-11-02 | 山东爱普电气设备有限公司 | Pressure-relief and antibump apparatus of low-voltage draw-out switch cabinet |
| CN113054581A (en) * | 2021-04-13 | 2021-06-29 | 浙江兆山电器有限公司 | Mls low pressure pull-out type cubical switchboard |
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| CN113725767A (en) | 2021-11-30 |
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Effective date of registration: 20240708 Address after: Building 1-3, No.1 Xin'an Road, Xialiang Village, Ma'an Town, Huicheng District, Huizhou City, Guangdong Province 516000 Applicant after: HUIZHOU BOXIN ELECTRIC EQUIPMENT Co.,Ltd. Country or region after: China Address before: 400000 No. 313, No. 548, Songshi Avenue, Shimahe street, Jiangbei District, Chongqing Applicant before: CHONGQING JIANSHU POWER EQUIPMENT MANUFACTURING Co.,Ltd. Country or region before: China |
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