CN117913690A - New forms of energy switchgear - Google Patents
New forms of energy switchgear Download PDFInfo
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- CN117913690A CN117913690A CN202410318012.2A CN202410318012A CN117913690A CN 117913690 A CN117913690 A CN 117913690A CN 202410318012 A CN202410318012 A CN 202410318012A CN 117913690 A CN117913690 A CN 117913690A
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- sealing
- ring
- arc
- extinguishing
- wall
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- 238000007789 sealing Methods 0.000 claims abstract description 213
- 238000002955 isolation Methods 0.000 claims abstract description 63
- 230000005540 biological transmission Effects 0.000 claims abstract description 44
- 238000005096 rolling process Methods 0.000 claims description 21
- 230000005611 electricity Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 12
- 238000012423 maintenance Methods 0.000 abstract description 9
- 239000007789 gas Substances 0.000 description 15
- 238000010248 power generation Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920000642 polymer Polymers 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
- 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
- H02B13/035—Gas-insulated switchgear
- H02B13/045—Details of casing, e.g. gas tightness
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
-
- 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
- H02B13/035—Gas-insulated switchgear
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a switching device for new energy, which belongs to the technical field of switching devices and comprises a cabinet body, wherein a connecting chamber is arranged at the lower side of the cabinet body, a driving chamber and a plenum chamber are arranged at the upper side of the cabinet body, a lower wiring assembly is fixedly arranged in the connecting chamber, a disconnecting switch is electrically connected with an upper wiring assembly through an arc-extinguishing switch, the upper wiring assembly is fixedly arranged at the top of the cabinet body, the disconnecting switch and the arc-extinguishing switch are both arranged in an air inflation chamber in a sealing manner, an arc-extinguishing driving assembly and an arc-extinguishing driving assembly are both fixedly arranged in the driving chamber, an arc-extinguishing sealing assembly is arranged between an arc-extinguishing transmission shaft and the cabinet body in a sealing manner, an isolation sealing assembly is arranged between the isolation transmission shaft and the cabinet body in a sealing manner, and a second insulating layer is arranged on the inner wall of the plenum chamber. The arc extinguishing sealing component and the isolating sealing component are arranged in the inflating chamber of the cabinet body, so that the sealing effect of the inflating chamber is better, gas leakage in the inflating chamber can be effectively prevented, the maintenance frequency of the switch equipment is reduced, and the maintenance cost is reduced.
Description
Technical Field
The invention relates to the technical field of switching equipment, in particular to switching equipment for new energy.
Background
With the development of science and technology, in addition to conventional hydroelectric power generation, thermal power generation and nuclear power generation, new energy power generation such as wind power generation, solar power generation, tidal power generation and geothermal power generation is becoming more and more popular. After power generation, power is required to be transmitted, switch equipment is required to be used in the power transmission process, some switch equipment in the prior art is provided with a plenum chamber and a power chamber, a power mechanism in the power chamber is required to drive a switch in the plenum chamber to realize power on/off, so that a through hole convenient for transmission of a transmission shaft is formed in a partition plate between the plenum chamber and the power chamber, the plenum chamber is filled with insulating gas for insulation, the switch equipment belongs to long-term use equipment, and because the sealing effect between the plenum chamber and the power chamber is poor, the plenum chamber leaks air, the insulating gas in the switch equipment is prevented from leaking, so that the insulating gas is required to be supplemented into the plenum chamber in the subsequent switch equipment maintenance process, the quantity of the switch equipment is huge, and the maintenance cost is very high in the subsequent maintenance process.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a switching device for new energy.
The aim of the invention is realized by the following technical scheme:
The utility model provides a switchgear for new forms of energy, includes the cabinet body, isolator, arc-extinguishing switch, arc-extinguishing drive assembly, isolation drive assembly, arc-extinguishing drive shaft, isolation transmission shaft, arc-extinguishing seal assembly, isolation seal assembly, go up wiring subassembly and wiring subassembly down, the downside of the cabinet body is provided with the spread spectrum, the upside of the cabinet body is provided with drive chamber and plenum chamber, the drive chamber with the plenum chamber contacts each other, the fixed setting of wiring subassembly down in the interior and upper end of spread spectrum with the isolator electricity is connected, the isolator passes through the arc-extinguishing switch with it is connected to go up the wiring subassembly electricity, it is fixed to set up to go up the wiring subassembly the top of the cabinet body, the isolator with the arc-extinguishing switch all seals up in the plenum chamber, the fixed setting of arc-extinguishing drive assembly just passes through the arc-extinguishing drive shaft drive the switch realizes the divide-shut brake, the transmission shaft with seal between the cabinet body be provided with the isolator, seal assembly has the isolator seal assembly with the first seal assembly has the isolator seal assembly between the first seal assembly and the isolator.
Further, the isolation seal assembly comprises an isolation seal fixing sleeve, a fixing ring, balls, a rotating ring, a convex ring, an inner ring, an outer ring, a sealing sleeve and a locking ring, wherein the isolation seal fixing sleeve is arranged in the inflation chamber, one end of the isolation seal fixing sleeve is fixedly connected with the inner wall of the inflation chamber in a sealing mode, the fixing ring is fixedly arranged in the isolation seal fixing sleeve in a sealing mode, a through hole matched with the isolation transmission shaft is coaxially formed in the middle of the fixing ring, the rotating ring is fixedly arranged on the isolation transmission shaft in a coaxial sealing mode, the convex ring is fixedly arranged on the rotating ring in a coaxial sealing mode, a plurality of outer rings are fixedly arranged on the inner wall of the convex ring in a coaxial sealing mode, one end of the sealing sleeve is fixedly arranged on the isolation seal fixing sleeve through the locking ring, an inner sealing groove matched with the inner ring is arranged on the inner wall of the sealing groove, an outer ring matched with the balls is arranged on the outer wall of the sealing groove in a coaxial sealing groove matched with the second rolling ring, and the rolling groove is arranged on the outer ring.
Further, a fixing groove is formed in the end portion of the sealing sleeve, the end portion of the isolation sealing fixing sleeve is arranged in the fixing groove, and the locking ring fixes the sealing sleeve on the outer wall of the isolation sealing fixing sleeve.
Further, a conical hole is formed in the end portion of the sealing sleeve, a conical end head matched with the conical hole is arranged at one end of the locking ring, an external thread is arranged at the other end of the locking ring, and an internal thread matched with the external thread is arranged on the inner wall of the isolation sealing fixing sleeve.
Further, the arc extinguishing seal assembly comprises an arc extinguishing seal fixing sleeve, a round seal ring, a conical seal ring and a horn seal ring, one end of the arc extinguishing seal fixing sleeve is fixedly arranged on the inner wall of the plenum chamber in a sealing mode, a plurality of semicircular grooves are formed in two sides of the inner wall of the arc extinguishing seal fixing sleeve, the round seal ring is arranged in the semicircular grooves in a sealing mode, the outer side of the conical seal ring is fixedly arranged on the round seal ring in a sealing mode, the inner side of the conical seal ring is matched with the arc extinguishing transmission shaft in a sealing mode, at least two rectangular grooves are formed in the middle of the inner wall of the arc extinguishing seal fixing sleeve, the large diameter of the horn seal ring is fixedly arranged in the rectangular grooves, the small diameter of the horn seal ring is matched with the arc extinguishing transmission shaft in a sealing mode, and the large diameters of the horn seal ring are oppositely arranged.
Further, the arc-extinguishing sealing fixing sleeve, the round sealing ring, the conical sealing ring, the horn sealing ring and the arc-extinguishing transmission shaft are all circular in cross section and coaxially arranged.
Further, limiting rings are fixedly arranged at two ends of the inner wall of the arc-extinguishing sealing fixing sleeve in a sealing mode, and the inner wall of the limiting rings is matched with the outer wall of the arc-extinguishing transmission shaft.
Further, the cross sections of the inner ring and the outer ring are semicircular.
Further, contact rings which are in sealing fit with the rotating rings are arranged on the end portions of the sealing sleeves in a sealing mode, and the contact rings are arranged on two sides of the sealing grooves.
The beneficial effects of the invention are as follows:
1) In this technique, set up arc extinguishing seal assembly and isolation seal assembly in the plenum of the cabinet body for the sealed effect of plenum is better, can effectually prevent the indoor gas leakage of plenum, reduces switchgear's maintenance frequency, reduces maintenance cost.
2) In the technology, a fixing groove is formed in the end part of the sealing sleeve or a conical hole is formed in the end part of the sealing sleeve, one of the fixing groove and the conical hole can be selected, and the sealing sleeve can be sealed and fixed on the isolation sealing fixing sleeve by the two schemes, so that the sealing function is effectively realized.
3) In this technique, the cooperation of arc extinguishing seal fixed cover, round sealing ring, toper sealing ring and loudspeaker sealing ring is used for have multiple sealing function in the arc extinguishing seal assembly, thereby make the arc extinguishing seal assembly have better sealed effect.
Drawings
FIG. 1 is a schematic diagram of the internal primary connection of a switchgear;
FIG. 2 is a schematic diagram of the internal side view connection of the switchgear;
FIG. 3 is a first connection block diagram of the isolation seal assembly;
FIG. 4 is a second connection block diagram of the isolation seal assembly;
Fig. 5 is a connection structure diagram of the arc extinguishing seal assembly;
FIG. 6 is an enlarged connection block diagram at A of FIG. 4;
FIG. 7 is a view showing the arrangement of the first rolling groove on the fixing ring;
FIG. 8 is a view showing the arrangement of the second rolling groove on the fixing ring;
in the figure, a 1-cabinet, a 2-isolating switch, a 3-arc-extinguishing switch, a 4-arc-extinguishing driving component, a 5-isolating driving component, a 6-arc-extinguishing transmission shaft, a 7-isolating transmission shaft, an 8-arc-extinguishing sealing component, a 9-isolating sealing component, a 10-upper wiring component, a 11-lower wiring component, a 12-connecting chamber, a 13-driving chamber, a 14-plenum chamber, a 15-first insulating layer, a 16-second insulating layer, a 17-isolating sealing fixing sleeve and an 18-fixing ring, 19-ball, 20-rotating ring, 21-convex ring, 22-inner ring, 23-outer ring, 24-sealing sleeve, 25-locking ring, 26-sealing groove, 27-inner sealing groove, 28-outer sealing groove, 29-fixing groove, 30-conical hole, 31-arc extinguishing sealing fixing sleeve, 32-round sealing ring, 33-conical sealing ring, 34-horn sealing ring, 35-semicircular groove, 36-rectangular groove, 37-limiting ring, 38-contact ring, 39-first rolling groove and 40-second rolling groove.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present invention, based on the embodiments of the present invention.
Referring to fig. 1-8, the present invention provides a technical solution:
The utility model provides a switchgear for new forms of energy, including the cabinet body 1, isolator 2, the explosion switch 3, the arc extinguishing drive assembly 4, the isolation drive assembly 5, arc extinguishing transmission shaft 6, the isolation transmission shaft 7, the arc extinguishing seal assembly 8, the isolation seal assembly 9, go up wiring assembly 10 and wiring assembly 11 down, the downside of the cabinet body 1 is provided with the link chamber 12, the upside of the cabinet body 1 is provided with drive chamber 13 and plenum 14, the link chamber 12, drive chamber 13 and plenum 14 contact each other, the fixed setting of wiring assembly 11 down is in the link chamber 12 and upper end and isolator 2 electric connection, isolator 2 passes through arc extinguishing switch 3 and last wiring assembly 10 electric connection, go up wiring assembly 10 fixed setting at the top of the cabinet body 1, isolator 2 and arc extinguishing switch 3 all seal arrangement in plenum 14, the fixed setting of arc extinguishing drive assembly 4 is in drive chamber 13 and realizes the divide-shut brake through arc extinguishing drive shaft 6 drive arc extinguishing switch 3, the fixed setting of isolation drive assembly 5 is in drive chamber 13 and through isolation drive shaft 7 drive isolator 2 realization divide-shut brake, seal assembly 8 is provided with between seal assembly 6 and the cabinet body 1, seal assembly 8 is provided with between isolator drive shaft 7 and the cabinet body 1, isolator seal assembly 9 and insulator layer 15 are provided with on the first insulating layer 15 seal assembly and the first insulating layer 15 between isolator drive shaft 7 and the isolator 1 seal assembly 9. The plenum 14 is a sealed chamber, a single gas is filled in the sealed chamber, and the single gas can be nitrogen, helium or the like, so that the purity of the single gas needs to be maintained above 99.996%. The upper wiring assembly 10 and the lower wiring assembly 11 are both in the prior art, the upper wiring assembly 10 is fixed on the top of the plenum chamber 14 in a sealing manner, the lower wiring assembly 11 is fixed on the bottom of the plenum chamber 14 in a sealing manner, and the lower wiring assembly 11 is electrically connected with the upper wiring assembly 10 after sequentially passing through the isolating switch 2 and the arc extinguishing switch 3. In the working process, two input and output modes exist, namely, input is carried out from the upper wiring assembly 10, and then output is carried out from the lower wiring assembly 11 after passing through the arc extinguishing switch 3 and the isolating switch 2 in sequence; and secondly, the current is input from the lower wiring assembly 11, then sequentially passes through the isolating switch 2 and the arc extinguishing switch 3 and is output from the upper wiring assembly 10. The arc extinguishing driving assembly 4 and the isolation driving assembly 5 are both in the prior art, and the arc extinguishing driving assembly 4 drives the arc extinguishing transmission shaft 6 to move along the length direction of the arc extinguishing transmission shaft 6, so that the arc extinguishing switch 3 is electrified and powered off; the isolation drive assembly 5 drives the isolation drive shaft 7 to rotate, and the isolation drive shaft 7 drives the isolation switch 2 to realize power on and power off when rotating, so that the plenum chamber 14 has better sealing effect, and therefore the arc extinguishing seal assembly 8 is arranged between the arc extinguishing drive shaft 6 and the cabinet body 1, the isolation seal assembly 9 is arranged between the isolation drive shaft 7 and the cabinet body 1, and under the action of the arc extinguishing seal assembly 8 and the isolation seal assembly 9, gas can be better stored in the plenum chamber 14, gas leakage in the plenum chamber 14 can be effectively prevented, maintenance frequency of switch equipment is reduced, and maintenance cost is reduced. Along with the development of technology, the structure of the switchgear is more and more compact, the functions of the switchgear are more and more, and the volume of the switchgear is smaller and more, so that the distance between the inner wall of the plenum chamber 14 and each power-on connector is smaller and more, in order to prevent insulation breakdown discharge, a second insulating layer 16 is arranged on the inner wall of the plenum chamber 14, a first insulating layer 15 is arranged on the outer walls of the isolation sealing fixing sleeve 17 and the arc extinguishing sealing fixing sleeve 31, the first insulating layer 15 and the second insulating layer 16 are made of insulating materials in the prior art, and common resins, ceramics, polymers and the like are adopted.
In some embodiments, the isolation seal assembly 9 includes an isolation seal fixing sleeve 17, a fixing ring 18, balls 19, a rotating ring 20, a convex ring 21, an inner ring 22, an outer ring 23, a sealing sleeve 24 and a locking ring 25, the isolation seal fixing sleeve 17 is disposed in the plenum chamber 14 and has one end fixedly connected with the inner wall of the plenum chamber 14 in a sealing manner, the fixing ring 18 is disposed in the isolation seal fixing sleeve 17 in a sealing manner, a through hole matched with the isolation transmission shaft 7 is coaxially disposed in the middle of the fixing ring 18, the rotating ring 20 is disposed in the isolation transmission shaft 7 in a coaxial sealing manner, the convex ring 21 is disposed in the rotating ring 20 in a coaxial sealing manner, a plurality of inner rings 22 are disposed in the inner wall of the convex ring 21 in a coaxial sealing manner, a plurality of outer rings 23 are disposed in the outer wall of the convex ring 21 in a coaxial sealing manner, one end of the sealing sleeve 24 is disposed in the isolation seal fixing sleeve 17 through the locking ring 25 in a sealing manner, a sealing groove 26 matched with the convex ring 21 is disposed in the other end of the sealing sleeve 24, an inner sealing groove 27 matched with the inner ring 22 is disposed in the inner wall of the sealing groove 26, an outer wall of the sealing groove 26 is disposed in a sealing manner with the outer ring 23 in a sealing manner, an outer groove 28 matched with the outer ring 18 is disposed in a sealing manner, a first sealing groove 39 is disposed in the outer groove 39 is disposed in the sealing groove 20 and a first rolling groove 39 is disposed in the sealing groove 39 matched with the rolling ring 19. The cross-sections of the inner ring 22 and the outer ring 23 are semicircular. The cross section of the isolation sealing fixing sleeve 17 is circular and is sealed and welded on the inner wall of the plenum chamber 14, the fixing ring 18 is coaxially sealed and welded on the inner wall of the isolation sealing fixing sleeve 17, the fixing ring 18 is arranged close to the inner wall of the plenum chamber 14, the rotating ring 20 is coaxially sealed and welded on the isolation transmission shaft 7, the rotating ring 20 is arranged close to the fixing ring 18, the end face of the rotating ring 20 is coaxially welded with the convex ring 21, a plurality of groups of inner rings 22 which are parallel to each other are coaxially sealed and fixed on the inner wall of the convex ring 21, a plurality of groups of outer rings 23 which are parallel to each other are coaxially sealed and fixed on the outer wall of the convex ring 21, the inner rings 22 and the outer rings 23 are arranged in the inner sealing groove 27 and the outer sealing groove 28 on the sealing groove 26, the cross sections of the inner rings 22 and the outer rings 23 can be square, triangular, trapezoid and the like, but in order to achieve better sealing effect, the cross sections of the inner rings 22 and the outer rings 23 are semicircular, so that between the inner rings 22 and the inner sealing groove 27 can be better bonded, and the outer sealing grooves 28 can be better sealed. The temperature of the switchgear is generally controlled between-15 deg.c and 40 deg.c, so the sealing sleeve 24 is made of elastic insulating rubber, elastic resin, etc. in the prior art. The sealing sleeve 24 can be tightly attached to the inner wall of the isolation sealing and fixing sleeve 17, and the sealing sleeve 24 is tightly attached to the inner wall of the convex ring 21 under the action of the gas pressure in the plenum chamber 14 because the pressure in the plenum chamber 14 is higher than the external gas pressure, so that the sealing sleeve 24 has better sealing effect. Meanwhile, under the action of the gas pressure in the plenum chamber 14, the pressure pushes the isolating transmission shaft 7 to move towards the driving chamber 13 through the rotating ring 20, three groups of rotating conductive rods are arranged on the isolating transmission shaft 7, friction force at the hinging position of the rotating conductive rods and the isolating transmission shaft 7 is increased after the isolating transmission shaft 7 moves, the rotating resistance of the isolating transmission shaft 7 is increased, and one ball 19 is placed in each first rolling groove 39 through arranging the balls 19 between the fixed ring 18 and the rotating ring 20, so that the isolating transmission shaft 7 cannot move, friction force is avoided, the isolating transmission shaft 7 can rotate more easily, the second rolling grooves 40 on the rotating ring 20 are arranged in an annular shape, as shown in fig. 8, the first rolling grooves 39 on the fixed ring 18 are small-section curved grooves, a plurality of first rolling grooves 39 are uniformly arranged on the fixed ring 18, at least two first rolling grooves 39 are arranged, in the technology, the plurality of first rolling grooves 39 are arranged on the same circle and are matched with the second rolling grooves 40, one ball 19 is placed in each first rolling groove 39, and therefore, two adjacent rolling balls 19 cannot be contacted, and further friction balls 7 cannot exist between the two rolling balls.
In some embodiments, the seal sleeve 24 is provided with a securing groove 29 on an end thereof, and the end of the isolation seal securing sleeve 17 is disposed in the securing groove 29, and the locking ring 25 secures the seal sleeve 24 to the outer wall of the isolation seal securing sleeve 17. The fixing groove 29 is formed in the sealing sleeve 24, and then the end of the isolating and sealing fixing sleeve 17 is fastened from the outside through the locking ring 25 (as shown in fig. 3), the locking ring 25 is a hoop in the prior art, and under the action of the hoop, the end of the isolating and sealing fixing sleeve 17 is tightly attached to the isolating and sealing fixing sleeve 17, so that a better sealing effect is achieved between the sealing sleeve 24 and the isolating and sealing fixing sleeve 17.
In some embodiments, the end of the sealing sleeve 24 is provided with a conical hole 30, one end of the locking ring 25 is provided with a conical end matched with the conical hole 30, the other end of the locking ring 25 is provided with external threads, and the inner wall of the isolating seal fixing sleeve 17 is provided with internal threads matched with the external threads. The tapered hole 30 on the sealing sleeve 24 is pressed down (as shown in fig. 4) at the tapered end of the locking ring 25, so that the outer wall of the sealing sleeve 24 is caused to be tightly attached to the inner wall of the isolation sealing fixing sleeve 17, thereby realizing better sealing between the sealing sleeve 24 and the isolation sealing fixing sleeve 17, and the locking ring 25 and the isolation sealing fixing sleeve 17 are in threaded fit, so that the assembly and the sealing adjustment can be facilitated.
In some embodiments, the seal cartridge 24 is sealingly provided with contact rings 38 on the ends thereof that sealingly engage the rotary ring 20, the contact rings 38 being provided on both sides of the sealing groove 26. The contact ring 38 is arranged to seal the contact ring 38 and the rotating ring 20, so that the sealing sleeve 24 has a better sealing effect, the cross section of the contact ring 38 is wedge-shaped, the width of the connecting end of the contact ring 38 is larger than that of the contact end, the contact end of the contact ring 38 is easy to deform, the contact end can be better attached to the end face of the rotating ring 20, and multiple groups of contact rings 38 are arranged on two sides of the convex ring 21 for the sealing effect.
In some embodiments, the arc-extinguishing sealing assembly 8 comprises an arc-extinguishing sealing fixed sleeve 31, a round sealing ring 32, a conical sealing ring 33 and a horn sealing ring 34, one end of the arc-extinguishing sealing fixed sleeve 31 is fixedly arranged on the inner wall of the plenum chamber 14 in a sealing manner, a plurality of semicircular grooves 35 are formed in two sides of the inner wall of the arc-extinguishing sealing fixed sleeve 31, the round sealing ring 32 is arranged in the semicircular grooves 35 in a sealing manner, the outer side of the conical sealing ring 33 is fixedly arranged on the round sealing ring 32 in a sealing manner, the inner side of the conical sealing ring 33 is matched with the arc-extinguishing transmission shaft 6 in a sealing manner, at least two rectangular grooves 36 are formed in the middle of the inner wall of the arc-extinguishing sealing fixed sleeve 31, the large diameter of the horn sealing ring 34 is fixedly arranged in the rectangular grooves 36 in a sealing manner, the small diameter of the horn sealing ring 34 is matched with the arc-extinguishing transmission shaft 6 in a sealing manner, and the large diameters of the two horn sealing rings 34 are oppositely arranged. The arc-extinguishing sealing fixing sleeve 31, the round sealing ring 32, the conical sealing ring 33, the horn sealing ring 34 and the arc-extinguishing transmission shaft 6 are all circular in cross section and coaxially arranged. The end part of the arc-extinguishing sealing fixing sleeve 31 is welded on the inner wall of the plenum chamber 14 in a sealing manner, a plurality of groups of semicircular grooves 35 and rectangular grooves 36 are formed in the arc-extinguishing sealing fixing sleeve 31, the seal of the circular sealing ring 32 is installed in the semicircular grooves 35, the cross section of the conical sealing ring 33 is wedge-shaped, the outer wall of the conical sealing ring 33 is wide and is connected on the inner wall of the circular sealing ring 32 in a sealing manner, the inner wall of the conical sealing ring 33 is narrow and is in sealing fit with the outer wall of the arc-extinguishing transmission shaft 6, two horn sealing rings 34 are arranged in the middle, the outer wall of the horn sealing rings 34 are arranged in the rectangular grooves 36 in a sealing manner, the inner wall of the horn sealing rings 34 is in sealing fit with the outer wall of the arc-extinguishing transmission shaft 6, and the arc-extinguishing sealing assembly 8 has better sealing effect in the moving process of the arc-extinguishing transmission shaft 6, so that gas leakage in the plenum chamber 14 is effectively prevented.
In some embodiments, limiting rings 37 are fixedly arranged on two ends of the inner wall of the arc-extinguishing sealing fixing sleeve 31 in a sealing manner, and the inner wall of the limiting rings 37 is matched with the outer wall of the arc-extinguishing transmission shaft 6. Wherein, setting up spacing ring 37 makes the gas of plenum chamber 14 and outside unable a large amount enter into in the arc extinguishing seal fixed cover 31, prevents that a large amount of gas from striking and causing sealed effect to decline.
In the description of the present invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "inner," "two ends," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
The foregoing is merely a preferred embodiment of the invention, and it is to be understood that the invention is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.
Claims (9)
1. The utility model provides a switching equipment for new forms of energy which characterized in that: including cabinet body (1), isolator (2), arc-extinguishing switch (3), arc-extinguishing drive assembly (4), isolation drive assembly (5), arc-extinguishing transmission shaft (6), isolation transmission shaft (7), arc-extinguishing seal assembly (8), isolation seal assembly (9), go up wiring subassembly (10) and lower wiring subassembly (11), the downside of cabinet body (1) is provided with link chamber (12), the upside of cabinet body (1) is provided with drive chamber (13) and plenum (14), link chamber (12) drive chamber (13) with plenum (14) contact each other, lower wiring subassembly (11) are fixed to be set up in link chamber (12) and the upper end with isolator (2) electricity is connected, isolator (2) are through arc-extinguishing switch (3) with go up wiring subassembly (10) electricity is connected, go up wiring subassembly (10) fixed the setting is in the top of cabinet body (1), isolator (2) with arc-extinguishing switch (3) are all sealed to be set up in plenum (14), arc-extinguishing switch (3) are fixed in drive chamber (6) and are fixed through arc-extinguishing switch (3) drive shaft (6) are realized, the isolating drive assembly (5) is fixedly arranged in the drive chamber (13) and drives the isolating switch (2) to realize switching on/off through the isolating drive shaft (7), the arc extinguishing drive shaft (6) and the cabinet body (1) are sealed to be provided with the arc extinguishing seal assembly (8), the isolating drive shaft (7) and the cabinet body (1) are sealed to be provided with the isolating seal assembly (9), the arc extinguishing seal assembly (8) and all be provided with first insulating layer (15) on the outer wall of the isolating seal assembly (9), be provided with on the inner wall of the plenum chamber (14) with second insulating layer (16) of first insulating layer (15) sealing connection.
2. The switching device for new energy according to claim 1, wherein: the isolation sealing assembly (9) comprises an isolation sealing fixing sleeve (17), a fixing ring (18), a ball (19), a rotating ring (20), a convex ring (21), an inner ring (22), an outer ring (23), a sealing sleeve (24) and a locking ring (25), wherein the isolation sealing fixing sleeve (17) is arranged in the plenum chamber (14) and one end of the isolation sealing fixing sleeve is fixedly connected with the inner wall of the plenum chamber (14) in a sealing manner, the fixing ring (18) is fixedly arranged in the isolation sealing fixing sleeve (17) in a sealing manner, a through hole matched with the isolation transmission shaft (7) is coaxially arranged in the middle of the fixing ring (18), the rotating ring (20) is fixedly arranged on the isolation transmission shaft (7) in a coaxial sealing manner, the convex ring (21) is fixedly arranged on the rotating ring (20) in a coaxial sealing manner, a plurality of inner rings (22) are fixedly arranged on the inner wall of the convex ring (21), a plurality of outer rings (23) are fixedly arranged on the outer wall of the convex ring (21) in a coaxial sealing manner, one end of the sealing sleeve (24) is fixedly arranged on the sealing sleeve (24) in a sealing manner through the locking ring (25) in a sealing manner, one end of the sealing sleeve (24) is fixedly arranged on the sealing sleeve (21) in a sealing manner, the inner wall of the sealing groove (26) is provided with an inner sealing groove (27) which is in sealing fit with the inner ring (22), the outer wall of the sealing groove (26) is provided with an outer sealing groove (28) which is in sealing fit with the outer ring (23), the ball (19) is arranged between the fixed ring (18) and the rotating ring (20), the fixed ring (18) is coaxially provided with a first rolling groove which is matched with the ball (19), and the rotating ring (20) is provided with a second rolling groove which is matched with the first rolling groove.
3. The switching device for new energy according to claim 2, wherein: the end part of the sealing sleeve (24) is provided with a fixing groove (29), the end part of the isolation sealing fixing sleeve (17) is arranged in the fixing groove (29), and the locking ring (25) fixes the sealing sleeve (24) on the outer wall of the isolation sealing fixing sleeve (17).
4. The switching device for new energy according to claim 2, wherein: the end of the sealing sleeve (24) is provided with a conical hole (30), one end of the locking ring (25) is provided with a conical end matched with the conical hole (30), the other end of the locking ring (25) is provided with external threads, and the inner wall of the isolation sealing fixing sleeve (17) is provided with internal threads matched with the external threads.
5. A switching device for new energy according to any one of claims 1 to 4, characterized in that: the utility model provides an arc extinguishing seal assembly (8) is including arc extinguishing seal fixed cover (31), round seal ring (32), toper sealing ring (33) and loudspeaker sealing ring (34), the one end seal of arc extinguishing seal fixed cover (31) is fixed to be set up on the inner wall of plenum chamber (14), all be provided with a plurality of semicircle grooves (35) on the inner wall both sides of arc extinguishing seal fixed cover (31), round seal ring (32) are sealed to be set up in semicircle groove (35), the outside seal fixed setting of toper sealing ring (33) is in on round seal ring (32), the inboard of toper sealing ring (33) with arc extinguishing transmission shaft (6) sealing fit, be provided with two rectangular channels (36) on the inner wall middle part of arc extinguishing seal fixed cover (31), the big footpath seal fixed setting of loudspeaker sealing ring (34) is in rectangular channel (36), the path of loudspeaker sealing ring (34) with arc extinguishing transmission shaft (6) sealing fit, and two big footpath of loudspeaker sealing ring (34) are set up relatively.
6. The switching device for new energy according to claim 5, wherein: the arc extinguishing sealing fixing sleeve (31), the round sealing ring (32), the conical sealing ring (33), the horn sealing ring (34) and the arc extinguishing transmission shaft (6) are all circular in cross section and coaxially arranged.
7. The switching device for new energy according to claim 6, wherein: limiting rings (37) are fixedly arranged at two ends of the inner wall of the arc-extinguishing sealing fixing sleeve (31) in a sealing mode, and the inner wall of the limiting rings (37) is matched with the outer wall of the arc-extinguishing transmission shaft (6).
8. A switching device for new energy according to any one of claims 2 to 4, characterized in that: the cross sections of the inner ring (22) and the outer ring (23) are semicircular.
9. A switching device for new energy according to any one of claims 2 to 4, characterized in that: a contact ring (38) in sealing engagement with the rotary ring (20) is arranged on the end of the sealing sleeve (24), and the contact rings (38) are arranged on both sides of the sealing groove (26).
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| CN202410318012.2A CN117913690B (en) | 2024-03-20 | 2024-03-20 | New forms of energy switchgear |
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| CN202410318012.2A CN117913690B (en) | 2024-03-20 | 2024-03-20 | New forms of energy switchgear |
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