CN111817156B - High-voltage switch cabinet - Google Patents
High-voltage switch cabinet Download PDFInfo
- Publication number
- CN111817156B CN111817156B CN202010593589.6A CN202010593589A CN111817156B CN 111817156 B CN111817156 B CN 111817156B CN 202010593589 A CN202010593589 A CN 202010593589A CN 111817156 B CN111817156 B CN 111817156B
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- China
- Prior art keywords
- pressure relief
- seat
- pressure
- side wall
- mounting
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- 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
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
- E05C9/04—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening
- E05C9/043—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening with crank pins and connecting rods
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D7/00—Hinges or pivots of special construction
- E05D7/08—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions
- E05D7/081—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions the pivot axis of the wing being situated near one edge of the wing, especially at the top and bottom, e.g. trunnions
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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
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/306—Accessories, e.g. windows
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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
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/38—Hinged covers or doors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention relates to a switch cabinet and discloses a high-voltage switch cabinet, which comprises a pressure relief mechanism, wherein the pressure relief mechanism comprises a pressure relief seat fixed on the inner surface of an upper top plate, the pressure relief seat comprises a cylindrical pressure relief seat side wall with openings at the upper end and the lower end and a pressure relief mounting seat positioned at the lower end part of the side wall of the pressure relief seat and positioned in the side wall of the pressure relief seat, and the pressure relief mounting seat is connected with the inner surface of the side wall of the pressure relief seat through a plurality of connecting rods uniformly arranged around the axis of the side wall of the pressure relief seat; the upper end of pressure release seat lateral wall installs the pressure release board, and pressure release passageway has been seted up at the pressure release board middle part, is equipped with the pressure release stopper in the pressure release passageway, installs the electro-magnet that can adsorb the pressure release board on the up end of pressure release seat lateral wall, installs longitudinal arrangement's compression spring between the lower surface of pressure release board and the pressure release mount pad. According to the invention, the switch cabinet is provided with the pressure relief mechanism, so that pressure relief can be performed on gases with different pressures, the triggering is sensitive, and the safety can be effectively guaranteed.
Description
Technical Field
The invention relates to a switch cabinet, in particular to a high-voltage switch cabinet.
Background
The short-circuit fault generated in the switch cabinet may generate tens of thousands of amperes of short-circuit current, the short-circuit current can generate high-temperature and high-pressure gas instantly, and the fault gas flow can not be effectively released in a short time, so that the explosion of the switch cabinet is easily caused, and therefore, the switch cabinet pressure relief is an item which must be considered when the switch cabinet is designed.
The pressure release mode to the cubical switchboard among the prior art still need the gas that produces to reach certain pressure when producing high-pressure gas in the cubical switchboard and just can guarantee that the pressure release board opens and carry out the pressure release, and the required trigger condition of pressure release mode is more, and the security performance is difficult to obtain comprehensive guarantee.
Disclosure of Invention
The invention provides a high-voltage switch cabinet, aiming at the problems in the switch cabinet in the prior art.
In order to solve the technical problem, the invention is solved by the following technical scheme:
a high-voltage switch cabinet comprises a cabinet body, wherein the cabinet body comprises an upper top plate, a pressure relief mechanism is arranged on the upper top plate, a pressure relief opening is formed in the middle of the upper top plate, the pressure relief mechanism is arranged at the pressure relief opening, the pressure relief mechanism comprises a pressure relief seat fixed on the inner surface of the upper top plate, the pressure relief seat comprises a cylindrical pressure relief seat side wall with openings at the upper end and the lower end and a pressure relief mounting seat positioned at the lower end of the pressure relief seat side wall and positioned in the pressure relief seat side wall, and the pressure relief mounting seat is connected with the inner surface of the pressure relief seat side wall through a plurality of connecting rods uniformly arranged around the axis of the pressure relief seat side wall; the upper end of pressure release seat lateral wall installs the pressure release board, and pressure release passageway has been seted up at the pressure release board middle part, is equipped with the pressure release stopper in the pressure release passageway, installs the electro-magnet that can adsorb the pressure release board on the up end of pressure release seat lateral wall, installs longitudinal arrangement's compression spring between the lower surface of pressure release board and the pressure release mount pad. The structural style of the pressure relief mechanism can realize double pressure relief, fully cope with the pressure relief under different pressure conditions, play the purpose of being capable of achieving reasonable pressure relief, increasing the installation efficiency of the pressure relief mechanism to the maximum extent and saving the installation cost.
Preferably, the pressure relief mounting seat is provided with a cylindrical balancing weight, and the pressure relief plug is connected with the balancing weight through a plastic connecting piece capable of being fused; the outer surface of the balancing weight is fixed with a circular copper sheet, at least two electromagnets are connected in series, two contacts connected with the electromagnets through wires are further installed on the pressure relief installation seat, and the two contacts are in contact with the outer surface of the copper sheet to form a loop. The reasonable pressure relief of various states such as high temperature and high pressure, high temperature and low pressure or low temperature and high pressure is fully realized by matching and linkage modes among the electromagnets, the contacts and the plastic connecting pieces of the trigger contacts, so that the safety performance of the switch cabinet can be effectively ensured.
As preferred, the pressure release mount pad is including being the cylindric mount pad body of ladder, compression spring's lower tip supports and leans on the ladder face of mount pad body, the middle part of mount pad body forms the axis direction and is fore-and-aft balancing weight mounting hole, the balancing weight stretches into in the balancing weight mounting hole, it is horizontal contact mounting hole to be equipped with the axis direction on the lateral wall of mount pad body, the contact stretches into in the balancing weight mounting hole from the contact mounting hole and contacts with the copper sheet on the balancing weight, still be equipped with transverse arrangement's contact spring in the contact mounting hole, the contact spring has the trend of ordering about the contact towards the copper sheet motion. The contact leans against the copper sheet through the contact spring, and the stability of the electromagnet during operation can be guaranteed.
Preferably, the outer side wall of the mounting seat body is sleeved with a circular ring sleeve in clearance fit with the mounting seat body, the circular ring sleeve is sleeved at the contact mounting hole, one end of the contact spring abuts against the contact, and the other end of the contact spring abuts against the inner wall of the circular ring sleeve. The setting of ring cover can realize the installation to contact spring, exerts pressure to contact spring to make contact spring can act on the contact, the mode that sets up of ring cover is simple simultaneously, the installation and demolish all very convenient.
Preferably, a counterweight block placing seat is fixed on the lower surface of the mounting seat body, and a counterweight block placing groove with an opening at the upper end and opposite to the counterweight block mounting hole is formed in the middle of the counterweight block placing seat. The setting in balancing weight resettlement groove can avoid the balancing weight to fall into the cubical switchboard and cause the damage to components and parts in the cubical switchboard or the cubical switchboard, has realized the reuse of balancing weight simultaneously.
Preferably, a power supply box is fixed in the pressure relief seat, and the contact and the electromagnet are powered by a battery in the power supply box. The electromagnet and the contact adopt an independent power supply mode separated from the power supply of the electrical element in the switch cabinet, so that the condition of action of the pressure relief mechanism caused by misoperation of the switch cabinet can be effectively avoided.
Preferably, the upper end part of the side wall of the pressure relief seat is provided with a circular electromagnet mounting part, the electromagnet mounting part is provided with a plurality of electromagnet mounting grooves which are uniformly distributed around the axis of the electromagnet mounting part, and the electromagnet mounting part is arranged in the electromagnet mounting grooves; the outer side wall of the electromagnet mounting part is also provided with an annular flange which is flush with the upper surface of the electromagnet mounting part, the annular flange is provided with a plurality of bolt holes, and the pressure relief seat is fixed on the upper top plate through bolts inserted into the bolt holes. The installation mode of pressure release seat and cubical switchboard still is convenient for install, dismantle when guaranteeing this pressure release mechanism stable connection.
Preferably, the pressure relief plate is mounted in the pressure relief opening and is in clearance fit with the inner side wall of the pressure relief opening. The clearance fit of the pressure relief plate and the pressure relief opening can realize that the pressure relief plate can move upwards to open the pressure relief opening during pressure relief, so that the pressure relief can be carried out to a greater extent.
Preferably, a pressure relief plug seat is arranged on the upper surface of the pressure relief plate and located at the pressure relief channel, the pressure relief plug seat is fixed on the upper surface of the pressure relief plate through a plurality of connecting columns, a pressure relief plug seat groove with a downward opening is formed in the middle of the pressure relief plug seat, and the outer side wall of the pressure relief plug can be in interference fit with the inner side wall of the pressure relief plug seat groove. The arrangement of the pressure relief plug placing seat can realize that the pressure relief channel can not fly out of the pressure relief plug during pressure relief, and the pressure relief plug can be recycled.
Preferably, the open end of the plug accommodating groove is formed with a guide groove having a diameter gradually increasing from top to bottom. The setting of guide way can make the pressure release stopper get into pressure release stopper mounting groove smoothly to can effectively avoid pressure release stopper departure.
Due to the adoption of the technical scheme, the invention has the remarkable technical effects that:
according to the invention, the switch cabinet is provided with the pressure relief mechanism, so that pressure relief can be performed on gases with different pressures, the triggering is sensitive, and the safety can be effectively guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of a switch cabinet body in embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of a door frame in embodiment 1 of the present invention.
Fig. 3 is a schematic structural view of a door body in embodiment 1 of the present invention.
Fig. 4 is a sectional view of fig. 3 taken along the axis of the release lever.
Fig. 5 is a partially enlarged view of a portion a in fig. 4.
Fig. 6 is a schematic structural view of a door frame latch according to embodiment 1 of the present invention.
Fig. 7 is a schematic view of an installation structure of a pressure relief mechanism in embodiment 1 of the present invention.
Fig. 8 is a partially enlarged view of a portion a in fig. 7.
Fig. 9 is a schematic structural view of the pressure relief seat of fig. 7.
Fig. 10 is a schematic view of the mechanism of the weight of fig. 7.
Fig. 11 is a schematic view of the structure of the vent plate of fig. 7.
The names of the parts indicated by the numerical references in the drawings are as follows: 101-top plate, 102-pressure relief opening, 103-pressure relief base, 104-pressure relief base side wall, 105-pressure relief mounting base, 106-connecting rod, 107-pressure relief plate, 108-pressure relief channel, 109-pressure relief plug, 110-electromagnet, 111-compression spring, 112-counterweight, 113-plastic connector, 114-copper sheet, 115-contact, 116-counterweight mounting hole, 117-contact mounting hole, 118-contact spring, 119-circular ring sleeve, 120-counterweight mounting base, 121-counterweight mounting groove, 122-power supply box, 123-electromagnet mounting portion, 124-electromagnet mounting groove, 125-circular flange, 126-pressure relief plug mounting base, 127-connecting column, 128-pressure relief plug mounting groove, 129-guide groove, 201-door frame, 202-door body, 203-door panel, 204-rotating pin, 205-locking piece, 206-door handle, 207-jack locking piece, 208-rotating pin mounting base, 209-retaining ring, 210-rotating pin spring, 211-handle mounting seat, 212-handle connecting column, 213-locking piece connecting seat, 214-limiting projection, 215-limiting groove, 216-door frame mounting plate, 217-sliding groove, 218-door frame bolt, 219-outer shell, 220-bolt column, 221-bolt spring, 222-supporting seat, 223-releasing limiting rod, 224-limiting rod spring, 225-handle spring and 226-flange part.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
The utility model provides a high tension switchgear, as shown in fig. 1-6, the intelligent cabinet temperature adjusting device comprises a cabinet body, be equipped with the cabinet door on the cabinet body, the cabinet door includes door frame 201, door frame 201 is the cuboid frame construction including the upper end pole, lower extreme pole, left end pole and right end pole, be equipped with respectively on the upper end pole of the framework of door frame 201 and the lower extreme pole towards the interior extension of framework carry out spacing limiting plate to door body 202, when door body 202 lock is in door frame 201, the upper and lower both ends of the rear end face of door body 202 support respectively and lean on upper and lower limiting plate, avoid door body 202 to be pushed into inside the cubical switchboard.
Articulated in the door frame 201 have a body 202, door body 202 includes door plant 203, still including setting up in the up end plate and the lower end plate at door plant 203's upper and lower both ends respectively and setting up in the side end plate of door plant 203 one side, the up end plate, lower end plate and side end plate all set up with door plant 203 is perpendicular, one side that is close to the side end plate of up end plate and lower end plate all is equipped with swivel pin 204, one side that is close to the right-hand member pole of up end pole and lower end pole all is equipped with and supplies swivel pin 204 to insert articulated pinhole, be equipped with locking piece jack 207 on the lateral wall relative with the left-hand member pole of right-hand member pole, one side of keeping away from the side end plate of door body 202 is equipped with the locking piece 205 that can insert in the locking piece jack 207, be equipped with the door handle 206 that can rotate locking piece 205 that is connected with locking piece 205 on the door plant 203 lateral wall. One end of the door frame 201, which is used for inserting the locking piece 205, of the upper end and the lower end of the locking piece insertion hole 207 is an inclined surface guide surface, and the inclined surface guide surface is arranged to ensure that the locking piece 205 can enter or rotate out of the locking piece insertion hole 207 in a rotating mode.
In this embodiment, a rotating pin mounting seat 208 is fixed on an inner side surface of the door panel 203, one end of the rotating pin 204 is inserted into the rotating pin mounting seat 208, the other end of the rotating pin 204 can penetrate out of the door body 202, a baffle ring 209 is fixed on the rotating pin 204, a rotating pin spring 210 which is longitudinally arranged is further sleeved on the rotating pin 204, the rotating pin spring 210 has a tendency of pushing the rotating pin 204 out of the door body 202, one end of the rotating pin abuts against the baffle ring 209, and the other end of the rotating pin abuts against the rotating pin mounting seat 208. Be equipped with handle mount pad 211 on the door body 202, pass in the handle mount pad 211 and can pivoted handle spliced pole 212, door handle 206 is connected to handle spliced pole 212 one end, the other end is connected with locking piece 205, the part that lies in door plant 203 inboard on the handle mount pad 211 is for being cylindric locking piece connecting seat 213, locking piece 205 establishes the inside on locking piece connecting seat 213 for the connecting portion of circular slot form and fixes the grafting portion on the connecting portion lateral wall including the cover, connecting portion can rotate around locking piece connecting seat 213, handle spliced pole 212 can pass on connecting portion and the connecting portion the downthehole wall that successful handle spliced pole 212 passed and be equipped with spacing lug 214, be equipped with the spacing groove 215 that supplies spacing lug 214 card to go into on the handle spliced pole 212 lateral wall.
When the door body 202 is installed, the rotating pin 204 at the upper end or the lower end is firstly inserted into the pin hole of the door frame 201, then the elastic force of the rotating pin spring 210 is overcome, so that the door body 202 further moves upwards or downwards until the rotating pin 204 at the other end can also be inserted into the pin hole of the door frame 201, and then the rotating pin 204 is kept inserted into the upper pin hole and the lower pin hole under the action of the rotating pin spring 210, and the installation of the door body 202 on the door frame 201 can be completed.
When the door body 202 needs to be opened or closed, the door handle 206 only needs to be rotated, the locking piece 205 can be driven to rotate through the handle connecting column 212, the locking piece 205 can extend out or retract into the door body 202, and the door body 202 can be locked and unlocked on the door frame 201. Still be provided with the lock core in this embodiment in handle spliced pole 212 is inside, be equipped with on the lock core can stretch out or retract in the handle spliced pole 212 with the mutual spacing portion of handle mount pad 211 inside wall, can realize spacing to handle spliced pole 212 circumferential direction through spacing portion, realized then only removing spacing portion earlier to handle spliced pole 212 through the key spacing, just can realize the rotation of handle spliced pole 212, then just can open door body 202, the security performance of cubical switchboard has been increased.
The end face, used for installing the door frame 201, on the cabinet body is provided with a door frame mounting plate 216 fixed at the upper end and the lower end of the cabinet body respectively, the upper door frame mounting plate 216 and the lower door frame mounting plate 216 are provided with sliding grooves 217 with opposite openings, the door frame 201 can be inserted into the sliding grooves 217 from one side of the cabinet body, and the upper end and the lower end of the door frame 201 can slide in the sliding grooves 217. The upper end face and the lower end face of the door frame 201 are respectively provided with a roller capable of rotating, the rollers roll on the bottom surface of the sliding groove 217, and the inner wall of the sliding groove 217 is in clearance fit with the outer walls of the upper end and the lower end of the door frame 201. The door frame 201 can be pulled out completely from the door frame mounting plate 216, breaks away from the door frame mounting plate 216, and then can realize the quick dismantlement of whole cabinet door on the cubical switchboard.
In this embodiment, the door frame mounting plate 216 is provided with a door frame insertion hole, the upper and lower end faces of the door frame 201 are respectively provided with a door frame bolt 218 capable of being inserted into the door frame insertion hole, the door frame bolt 218 includes an outer shell 219, a bolt column 220 capable of sliding up and down is arranged in the outer shell 219, and the bolt column 220 is provided with a bolt spring 221 enabling the bolt to be inserted into the door frame insertion hole. The doorframe bolt 218 further comprises a flange plate fixed on the end surface of the doorframe 201 through a bolt, the outer shell 219 is fixed on the lower surface of the flange plate, one end of the doorframe bolt 218 penetrates through the flange plate, the other end of the doorframe bolt penetrates through the outer shell 219, an annular flange is arranged on the outer wall of the doorframe bolt 218, and the annular flange is abutted against the lower surface of the flange plate through a bolt spring 221. The cooperation of door frame jack and door frame bolt 218 can guarantee that fixing on the cabinet body that door frame 201 can be stable, then realize the installation of cabinet door on the cabinet body.
Be fixed with bolt canceling mechanism on the inside wall of door plant 203, bolt canceling mechanism is including fixing the supporting seat 222 on the door plant 203 inside wall, supporting seat 222 symmetric distribution is in the upper and lower both sides of locking piece 205, wear to be equipped with on the supporting seat 222 and remove gag lever post 223, the one end of removing gag lever post 223 can wear out the door body 202 and insert in the door frame 201, it supports to lean on supporting seat 222 and has the gag lever post spring 224 that will remove gag lever post 223 withdrawal door body 202 internal trend to remove the cover on the gag lever post 223, door frame bolt 218 is fixed on door frame 201 and is removed the position that gag lever post 223 is relative, it can drive door frame bolt 218 withdrawal in the door frame 201 when removing gag lever post 223 and inserting in the door frame 201.
In this embodiment, a magnet is disposed on an end surface of the door frame bolt 218 opposite to the release lever 223, and the end portion of the release lever 223 opposite to the door frame bolt 218 is made of iron. The end face, adjacent to the locking piece 205, of the releasing limiting rod 223 is a wedge-shaped face, the end portion of the handle connecting column 212 can penetrate through the locking piece 205 and is located between the upper and lower two releasing limiting rods 223, the penetrating end portion of the handle connecting column 212 is a wedge-shaped face matched with the wedge-shaped face on the releasing limiting rod 223, and the handle connecting column 212 can push the two releasing limiting rods 223 out of the door body 202 and insert the door body 201 when moving in the direction away from the locking piece 205. Be equipped with the shoulder hole in the handle mount pad 211, be equipped with on the surface of handle spliced pole 212 and be the annular flange portion 226 of circle, the cover is equipped with on handle spliced pole 212 passes shoulder hole and the handle spliced pole 212 and leans on flange portion 226 the handle spring 225 of the ladder department of shoulder hole, spacing groove 215 extends to flange portion 226 from the one end of handle spliced pole 212, and spacing lug 214 can follow handle spliced pole 212 axial slip in spacing groove 215.
When the cabinet door needs to be opened, the door handle 206 is pressed, the handle connecting column 212 moves towards the direction far away from the locking piece 205, the handle connecting column 212 can extrude the limiting rods 223 on the upper side and the lower side through the matching of the wedge-shaped surface, the limiting rods 223 on the upper side and the lower side can move upwards and downwards respectively, the limiting rods 223 on the upper side and the lower side extend out of the door body 202 and are inserted into the door frame 201, the limiting rods 223 are inserted into the door frame 201 and then approach the door frame bolt 218, the door frame bolt 218 can retract into the door frame 201 by overcoming the elastic force of the bolt spring 221 through magnetic force, the door frame inserting hole is withdrawn, the limiting between the door frame 201 and the door frame mounting plate 216 on the cabinet body is removed at the moment, the whole door frame 201 can be slid, the whole door frame 201 can be taken out from the side of the sliding groove 217, and the cabinet body can be completely separated from the cabinet body.
The door handle 206 can also be rotated, so that the locking piece 205 is separated from the locking piece insertion hole 207 on the door frame 201, that is, the door body 202 can be opened by rotating the door body 202, and at the moment, the door frame 201 is still fixed on the cabinet body.
In this embodiment, through setting up the same structure on door body 202, the change can realize opening of different modes of cabinet door among the cubical switchboard to the different operation form of door handle 206, the mode of opening is nimble, it is simple and convenient, can select different modes of opening according to actual need, and when needs demolish whole door frame 201, the spacing rod 223 of removing on the door body 202 is in the state that inserts in door frame 201, the stability of being connected between door body 202 and door frame 201 at this moment has further been strengthened, guarantee that whole cabinet door can be stable pull down, and when opening door body 202 alone, make and remove the state that spacing rod 223 is in withdrawal door body 202, remove spacing rod 223 and can not interlock door frame bolt 218, guarantee that door frame bolt 218 can be stable insert in the door frame bolt, guarantee the stability of being connected between door frame 201 and the cabinet body when door body 202 opens alone.
As shown in fig. 7-11, the cabinet body includes an upper top plate 101, a pressure relief mechanism is disposed on the upper top plate 101, a pressure relief opening 102 is disposed in the middle of the upper top plate 101, the pressure relief mechanism is disposed at the pressure relief opening 102, the pressure relief mechanism includes a pressure relief seat 103 fixed on the inner surface of the upper top plate 101, the pressure relief seat 103 includes a cylindrical pressure relief seat side wall 104 with openings at the upper and lower ends, and a pressure relief mounting seat 105 located at the lower end of the pressure relief seat side wall 104 and located in the pressure relief seat side wall 104, and the pressure relief mounting seat 105 is connected with the inner surface of the pressure relief seat side wall 104 through a plurality of connecting rods 106 uniformly arranged around the axis of the pressure relief seat side wall 104; the upper end of the pressure relief seat side wall 104 is provided with a pressure relief plate 107, the middle of the pressure relief plate 107 is provided with a pressure relief channel 108, a pressure relief plug 109 is arranged in the pressure relief channel 108, the upper end surface of the pressure relief seat side wall 104 is provided with an electromagnet 110 capable of adsorbing the pressure relief plate 107, and a compression spring 111 which is longitudinally arranged is arranged between the lower surface of the pressure relief plate 107 and the pressure relief mounting seat 105.
In this embodiment, the pressure relief mounting seat 105 is provided with a cylindrical weight block 112, and the pressure relief plug 109 is connected with the weight block 112 through a fused plastic connecting piece 113; the outer surface of the balancing weight 112 is fixed with a circular copper sheet 114, at least two electromagnets 110 are connected in series, two contacts 115 connected with the electromagnets 110 through wires are further installed on the pressure relief installation seat 105, and the two contacts 115 are in contact with the outer surface of the copper sheet 114 to form a loop.
When taking place short-circuit failure in the cubical switchboard, can produce high temperature high-pressure gas, if produced other pressure is less and the temperature does not reach when the melting point of plastic connecting piece 113, gaseous can make pressure release stopper 109 rebound, carry out the pressure release through the clearance between pressure release stopper 109 and the pressure release passageway 108, can satisfy the pressure release demand through this pressure release passageway 108, pressure release stopper 109 can not continue the upward movement this moment, then can not trigger the outage of 110 parts of electro-magnet, 110 parts of electro-magnet still keep original on state, be convenient for subsequent pressure release mechanism that resumes once more.
If the produced gas pressure is great but the temperature still does not reach the melting point of plastic connector 113, pressure release channel 108 pressure release can't satisfy the pressure release demand this moment, then pressure release plug 109 can continue upward movement under the cubical switchboard internal pressure effect, the sealing plug can drive balancing weight 112 through plastic connector 113 and shift up, make copper sheet 114 on the balancing weight 112 break away from and electrocute between the contact, cause the electro-magnet 110 outage, electro-magnet 110 can not adsorb pressure release plate 107 again this moment, and back off pressure release plate 107 under compression spring 111's effect, make the gas in the cubical switchboard can directly carry out the pressure release on a large scale through pressure release port 102.
If the temperature of produced gas is greater than when the melting point of plastic connector 113, high temperature gas can fuse plastic connector 113, balancing weight 112 can move down under self action of gravity and make copper sheet 114 on balancing weight 112 break away from and electrocute between the contact, cause the outage of electro-magnet 110, electro-magnet 110 can not adsorb pressure release plate 107 again this moment, and back open pressure release plate 107 under compression spring 111's effect, because the pressure that high temperature gas generally produced is also great, because make this high temperature high pressure gas can directly carry out pressure release on a large scale through pressure release port 102, guarantee the security of cubical switchboard. The plastic connecting piece 113 in this embodiment can be made of plastic with a proper melting point according to the actual requirements of the switch cabinet, so that the plastic connecting piece 113 can be fused in time when a certain temperature is generated.
In this embodiment, the pressure relief mounting seat 105 includes a stepped cylindrical mounting seat body, the lower end of the compression spring 111 abuts against the stepped surface of the mounting seat body, a longitudinal counterweight mounting hole 116 is formed in the middle of the mounting seat body, the counterweight 112 extends into the counterweight mounting hole 116, a contact mounting hole 117 is formed in the side wall of the mounting seat body, the axis direction of the contact mounting hole 117 is horizontal, the contact 115 extends into the counterweight mounting hole 116 from the contact mounting hole 117 and contacts with a copper sheet 114 on the counterweight 112, a contact spring 118 is further arranged in the contact mounting hole 117 and transversely, and the contact spring 118 has a tendency of driving the contact 115 to move towards the copper sheet 114. The cover is equipped with ring cover 119 with mount pad body clearance fit on the lateral wall of mount pad body, and ring cover 119 cover is established in contact mounting hole 117 department, and contact spring 118 one end supports and leans on contact 115, and the other end supports and leans on ring cover 119 inner wall. A counterweight block placing seat 120 is fixed on the lower surface of the mounting seat body, and a counterweight block placing groove 121 with an opening at the upper end and opposite to the counterweight block mounting hole 116 is arranged in the middle of the counterweight block placing seat 120.
The contact spring 118 is in a compressed state under the action of the annular sleeve 119, so that the contact spring 118 can press the contact 115, the contact 115 can be pressed on the copper sheet 114, and the stability of the power-on state of the electromagnet 110 is ensured. Set up in the relative balancing weight resettlement groove 121 of balancing weight mounting hole 116 in mount pad body lower part, can make plastic connector 113 after fusing, balancing weight 112 falls to balancing weight resettlement groove 121 under self action of gravity, avoid balancing weight 112 to fall into in the cubical switchboard to the components and parts in the cubical switchboard or cause the damage to the cubical switchboard itself, also can be when installing pressure relief mechanism again simultaneously, the more convenient balancing weight 112 of taking settles again, the upper end of balancing weight 112 still stretches out mount pad body up end after falling into balancing weight resettlement groove 121 in this embodiment, be convenient for the better taking of balancing weight 112.
In the embodiment, the power supply box 122 is fixed in the pressure relief base 103, the contacts 115 and the electromagnets 110 are both powered by a battery in the power supply box 122, and four electromagnets 110 connected in series are provided, the first and the last electromagnets 110 are respectively connected with the two contacts 115, so that a loop can be formed when the two contacts 115 are in contact with the copper sheet 114, when the contacts 115 are separated from the copper sheet 114, the loop can be disconnected, and the electromagnets 110 are powered off, the power-off mode for the electromagnets 110 is not a situation that a circuit at the electromagnets 110 is short-circuited or a lead is blown off due to a short-circuit fault, and the problem that the circuit at the electromagnets 110 cannot be relieved of pressure even if high-temperature and high-pressure gas is generated in the switch cabinet is avoided, and the counterweight 112 is inevitably moved upwards or downwards so that the copper sheet 114 is separated from the contacts 115 to power off the electromagnets 110, this kind of mode is more stable, more sensitive.
And this electro-magnet 110 and contact 115 are all through setting up the power pack 122 power supply in pressure release seat 103, and it is with the inside circuit separation of cubical switchboard, and the independent power supply, when appearing cutting off the power supply in the cubical switchboard and not producing the situation of high temperature high pressure gas because of short circuit fault, can keep the normal power supply of electro-magnet 110, and pressure release mechanism can keep normal stable work.
In this embodiment, the upper end of the pressure relief seat side wall 104 is provided with an annular electromagnet mounting part 123, the electromagnet mounting part 123 is provided with a plurality of electromagnet mounting grooves 124 uniformly arranged around the axis of the electromagnet mounting part 123, and the electromagnet mounting part 123 is arranged in the electromagnet mounting groove 124; an annular flange 125 flush with the upper surface of the electromagnet mounting part 123 is further arranged on the outer side wall of the electromagnet mounting part 123, a plurality of bolt holes are formed in the annular flange 125, and the pressure relief seat 103 is fixed on the upper top plate 101 through bolts inserted into the bolt holes. The pressure relief seat 103 is connected to the top plate of the switch cabinet through a flange structure formed by the annular flange 125 and the bolts on the annular flange 125, so that the pressure relief mechanism is convenient to mount and dismount while ensuring stable connection, does not change the structure of the switch cabinet, has strong adaptability and can be widely applied.
In this embodiment, the pressure relief plate 107 is installed in the pressure relief opening 102 and is in clearance fit with the inner side wall of the pressure relief opening 102, when pressure relief is required to be performed through the pressure relief opening 102, the pressure relief plate 107 can move upwards, a pressure relief plug seat 126 is arranged on the upper surface of the pressure relief plate 107 and located at the pressure relief passage 108, the pressure relief plug seat 126 is fixed on the upper surface of the pressure relief plate 107 through a plurality of connecting posts 127, a pressure relief plug seat groove 128 with a downward opening is formed in the middle of the pressure relief plug seat 126, the outer side wall of the pressure relief plug 109 can be in interference fit with the inner side wall of the pressure relief plug seat groove 128, and a guide groove 129 with a diameter gradually increased from top to bottom is formed at the opening end of the pressure relief plug seat groove 128. When the pressure is released through the pressure release channel 108 and the plastic connecting piece 113 is fused, the pressure release plug 109 can be ejected out under the action of high-pressure gas in the switch cabinet, the ejected pressure release plug 109 can be clamped into the pressure release plug placing groove 128 under the action of the guide groove 129, the potential safety hazard caused by the flying-out of the pressure release plug 109 can be avoided, meanwhile, when the pressure release mechanism is installed again, the pressure release plug 109 can be taken more conveniently to be placed again, and the pressure release plug 109 can be reused.
In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.
Claims (9)
1. The utility model provides a high tension switchgear, includes the cabinet body, and the cabinet body is equipped with pressure release mechanism, its characterized in that including last roof (101) on going up roof (101): the middle part of the upper top plate (101) is provided with a pressure relief opening (102), the pressure relief mechanism is arranged at the pressure relief opening (102), the pressure relief mechanism comprises a pressure relief seat (103) fixed on the inner surface of the upper top plate (101), the pressure relief seat (103) comprises a cylindrical pressure relief seat side wall (104) with openings at the upper end and the lower end and a pressure relief mounting seat (105) positioned at the lower end part of the pressure relief seat side wall (104) and positioned in the pressure relief seat side wall (104), and the pressure relief mounting seat (105) is connected with the inner surface of the pressure relief seat side wall (104) through a plurality of connecting rods (106) uniformly arranged around the axis of the pressure relief seat side wall (104); a pressure relief plate (107) is mounted at the upper end part of the pressure relief seat side wall (104), a pressure relief channel (108) is formed in the middle of the pressure relief plate (107), a pressure relief plug (109) is arranged in the pressure relief channel (108), an electromagnet (110) capable of adsorbing the pressure relief plate (107) is mounted on the upper end surface of the pressure relief seat side wall (104), and a compression spring (111) which is longitudinally arranged is mounted between the lower surface of the pressure relief plate (107) and the pressure relief mounting seat (105); a cylindrical balancing weight (112) is arranged on the pressure relief mounting seat (105), and the pressure relief plug (109) is connected with the balancing weight (112) through a plastic connecting piece (113) which can be fused; the outer surface of the balancing weight (112) is fixed with a circular copper sheet (114), at least two electromagnets (110) are connected in series, two contacts (115) connected with the electromagnets (110) through leads are further mounted on the pressure relief mounting seat (105), and the two contacts (115) are in contact with the outer surface of the copper sheet (114) to form a loop.
2. A high-voltage switchgear, according to claim 1, characterized in that: pressure release mount pad (105) are including being the cylindric mount pad body of ladder, the lower tip of compression spring (111) supports and leans on the ladder face of mount pad body, the middle part of mount pad body forms axis direction and is fore-and-aft balancing weight mounting hole (116), balancing weight (112) stretch into in balancing weight mounting hole (116), it is horizontal contact mounting hole (117) to be equipped with the axis direction on the lateral wall of mount pad body, contact (115) stretch into in balancing weight mounting hole (116) and contact with copper sheet (114) on balancing weight (112) from contact mounting hole (117), still be equipped with horizontal arrangement's contact spring (118) in contact mounting hole (117), contact spring (118) have the trend that orders about contact (115) towards copper sheet (114) motion.
3. A high-voltage switchgear, according to claim 2, characterized in that: the outer side wall of the mounting seat body is sleeved with a circular ring sleeve (119) in clearance fit with the mounting seat body, the circular ring sleeve (119) is sleeved at the contact mounting hole (117), one end of a contact spring (118) abuts against a contact (115), and the other end of the contact spring abuts against the inner wall of the circular ring sleeve (119).
4. A high-voltage switchgear, according to claim 2, characterized in that: a counterweight block placing seat (120) is fixed on the lower surface of the mounting seat body, and a counterweight block placing groove (121) with an opening at the upper end and opposite to the counterweight block mounting hole (116) is arranged in the middle of the counterweight block placing seat (120).
5. A high-voltage switchgear, according to claim 1, characterized in that: a power supply box (122) is fixed in the pressure relief seat (103), and the contact (115) and the electromagnet (110) are powered by a battery in the power supply box (122).
6. A high-voltage switchgear, according to claim 1, characterized in that: the upper end part of the pressure relief seat side wall (104) is provided with an annular electromagnet mounting part (123), the electromagnet mounting part (123) is provided with a plurality of electromagnet mounting grooves (124) which are uniformly distributed around the axis of the electromagnet mounting part (123), and the electromagnet mounting part (123) is arranged in the electromagnet mounting groove (124); an annular flange (125) which is flush with the upper surface of the electromagnet mounting part (123) is further arranged on the outer side wall of the electromagnet mounting part (123), a plurality of bolt holes are formed in the annular flange (125), and the pressure relief seat (103) is fixed on the upper top plate (101) through bolts inserted into the bolt holes.
7. A high-voltage switchgear, according to claim 1, characterized in that: the pressure relief plate (107) is installed in the pressure relief opening (102) and is in clearance fit with the inner side wall of the pressure relief opening (102).
8. A high-voltage switchgear, according to claim 1, characterized in that: on the upper surface of pressure release board (107) and be located pressure release passageway (108) department and be equipped with pressure release plug arrangement seat (126), pressure release plug arrangement seat (126) are fixed on the upper surface of pressure release board (107) through many spliced poles (127), pressure release plug arrangement seat (126) middle part is equipped with downward open-ended pressure release plug mounting groove (128), the lateral wall of pressure release plug (109) can with the inside wall interference fit of pressure release plug mounting groove (128).
9. A high-voltage switchgear, according to claim 1, characterized in that: the open end of the pressure relief plug seating groove (128) forms a guide groove (129) having a diameter gradually increasing from top to bottom.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010593589.6A CN111817156B (en) | 2020-06-27 | 2020-06-27 | High-voltage switch cabinet |
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| CN202010593589.6A CN111817156B (en) | 2020-06-27 | 2020-06-27 | High-voltage switch cabinet |
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| CN111817156A CN111817156A (en) | 2020-10-23 |
| CN111817156B true CN111817156B (en) | 2022-02-15 |
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| CN112588219A (en) * | 2020-12-15 | 2021-04-02 | 常州机电职业技术学院 | Reaction kettle and pressure relief device thereof |
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| CN111817156A (en) | 2020-10-23 |
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Effective date of registration: 20220126 Address after: 323000 Wenyi 788, Bihu Industrial Park, Liandu District, Lishui City, Zhejiang Province Applicant after: Zhejiang Tianrun Electric Co.,Ltd. Address before: 230022 1702, building 12, Lanjun, Impression West Lake Garden, No. 69, Wangjiang West Road, Shushan District, Hefei City, Anhui Province Applicant before: Hefei volt ampere Technology Co.,Ltd. |
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