CN220420494U - Low-temperature-resistant self-energy sulfur hexafluoride high-voltage circuit breaker - Google Patents
Low-temperature-resistant self-energy sulfur hexafluoride high-voltage circuit breaker Download PDFInfo
- Publication number
- CN220420494U CN220420494U CN202322111116.XU CN202322111116U CN220420494U CN 220420494 U CN220420494 U CN 220420494U CN 202322111116 U CN202322111116 U CN 202322111116U CN 220420494 U CN220420494 U CN 220420494U
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- CN
- China
- Prior art keywords
- circuit breaker
- connecting seat
- sulfur hexafluoride
- fixedly arranged
- breaker shell
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Links
- 229910018503 SF6 Inorganic materials 0.000 title claims abstract description 31
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229960000909 sulfur hexafluoride Drugs 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000010891 electric arc Methods 0.000 description 4
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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- Circuit Breakers (AREA)
Abstract
The utility model provides a low-temperature-resistant self-energy sulfur hexafluoride high-voltage circuit breaker, which comprises a circuit breaker shell, a top end sealing plate, a self-energy opening and closing push rod, a first connecting seat, an arc reduction gas tank and a second connecting seat, wherein: the top end sealing plates are fixedly arranged at two ends of the circuit breaker shell, and the self-openable push rods are respectively and fixedly arranged on the surfaces of the two groups of top end sealing plates and are positioned in the circuit breaker shell; the first connecting seat and the second connecting seat are respectively and slidably arranged in the circuit breaker shell and are fixedly connected with two groups of self-openable push rods; the arc-reduction gas tank is fixedly arranged in the middle of the breaker shell; according to the utility model, the first connecting seat and the arc-reduction gas tank are arranged, so that sulfur hexafluoride gas can be automatically discharged and sucked according to the opening and closing of the circuit breaker, and the circuit breaker can be rapidly opened and closed.
Description
Technical Field
The utility model relates to the technical field of sulfur hexafluoride high-voltage circuit breakers, in particular to a low-temperature-resistant self-energy sulfur hexafluoride high-voltage circuit breaker.
Background
A sulfur hexafluoride high voltage circuit breaker is a high voltage circuit breaker widely used in electric power systems, also called SF6 high voltage circuit breaker. The high-voltage circuit breaker is a protection device for breaking or connecting a high-voltage circuit, is common in power transmission lines, substations and other high-voltage power devices, is a gas with high insulation performance and excellent arc extinguishing performance, and is widely used as an arc extinguishing medium in the high-voltage circuit breaker. However, the existing sulfur hexafluoride high-voltage circuit breaker still has the problems that sulfur hexafluoride gas cannot be automatically discharged and sucked according to the opening and closing of the circuit breaker, and the circuit breaker cannot be opened and closed rapidly.
Therefore, it is very necessary to invent a low temperature resistant self-energy sulfur hexafluoride high voltage circuit breaker.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a low-temperature-resistant self-energy sulfur hexafluoride high-voltage circuit breaker, which solves the problems that the existing sulfur hexafluoride high-voltage circuit breaker still cannot automatically discharge and suck sulfur hexafluoride gas according to the opening and closing of the circuit breaker and cannot quickly open and close the circuit breaker. The utility model provides a low temperature resistant self-energy sulfur hexafluoride high voltage circuit breaker, includes circuit breaker shell, top shrouding, self-energy switching push rod, first connecting seat, arc reduction gas tank and second connecting seat, wherein: the top end sealing plates are fixedly arranged at two ends of the circuit breaker shell, and the self-openable push rods are respectively and fixedly arranged on the surfaces of the two groups of top end sealing plates and are positioned in the circuit breaker shell; the first connecting seat and the second connecting seat are respectively and slidably arranged in the circuit breaker shell and are fixedly connected with two groups of self-openable push rods; the arc reduction gas tank is fixedly arranged in the middle of the breaker shell.
The first connecting seat comprises a sliding supporting seat, an anode connecting electric contact, a driving piston, a high-voltage wire connecting seat and a high-voltage wire, wherein the sliding supporting seat is slidably arranged in the circuit breaker shell, and the anode connecting electric contact is fixedly arranged at the front end of the sliding supporting seat; the driving piston is fixedly arranged on the surface of the front end of the sliding support seat, and the high-voltage wire connecting seat is fixedly arranged on the surface of the sliding support seat and is positioned in a slot on the inner side of the circuit breaker shell; the high-voltage wire is fixedly connected with the high-voltage wire connecting seat.
The arc-reduction gas tank comprises a gas tank, a gas conducting pipe, an electromagnetic valve and a support frame, wherein the gas tank is communicated with the circuit breaker shell through the gas conducting pipe, and the tank is fixedly connected with the circuit breaker shell through the support frame; the electromagnetic valve is fixedly arranged in the gas conduit.
The internal structures of the first connecting seat and the second connecting seat are completely identical except for the anode connecting electrical contact, and the anode connecting electrical contact in the first connecting seat is replaced by a cathode connecting groove in the second connecting seat; the anode electric contact is a copper metal rod, the cathode connecting groove matched with the anode electric contact is a cylindrical metal groove, and the driving piston is a stainless steel metal shell; the outer diameter of the driving piston is matched with the inner diameter of the circuit breaker shell and is used for being matched with the second connecting seat to form two groups of electric contacts, the first connecting seat and the second connecting seat are closed and opened through the self-openable push rod, when the first connecting seat and the second connecting seat are closed, the space between the driving pistons is reduced, air between the driving pistons is discharged outwards, the electric contacts are contacted, and the circuit is connected; when the first connecting seat and the second connecting seat are separated, the space between the driving pistons is enlarged, the external air is supplemented inwards, the electric contact is separated, and the circuit is disconnected.
The arc-reduction gas tank is a steel metal tank, the air pressure in the arc-reduction gas tank is equal to other air pressure in the breaker shell, and sulfur hexafluoride gas is filled in the air tank; the electromagnetic valve adopts a group of copper electromagnetic valves, is used for driving the space between the pistons to become larger when the first connecting seat and the second connecting seat are opened, sulfur hexafluoride gas in the arc reduction gas tank is supplemented inwards, the sulfur hexafluoride gas has excellent insulating property, can effectively prevent arc discharge under high voltage, and can rapidly extinguish the arc when two groups of electric contacts are disconnected, so that the stability and the safety of a circuit are ensured.
Compared with the prior art, the utility model has the following beneficial effects:
1. the first connecting seat is used for being matched with the second connecting seat to form two groups of electric contacts, the first connecting seat and the second connecting seat are closed and opened through the self-openable push rod, when the first connecting seat and the second connecting seat are closed, the space between the driving pistons is reduced, air between the driving pistons is discharged outwards, and the electric contacts are contacted and connected through a circuit; when the first connecting seat and the second connecting seat are separated, the space between the driving pistons is enlarged, the external air is supplemented inwards, the electric contact is separated, and the circuit is disconnected.
2. The arc-reduction gas tank is arranged, when the first connecting seat and the second connecting seat are opened, the space between the driving pistons is enlarged, sulfur hexafluoride gas in the arc-reduction gas tank is supplemented inwards, the sulfur hexafluoride gas has excellent insulating property, arc discharge under high voltage can be effectively prevented, and when two groups of electric contacts are disconnected, the arc can be rapidly extinguished, so that the stability and the safety of a circuit are ensured.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is an enlarged view at a of the present utility model.
Fig. 3 is a schematic structural view of the arc reduction gas tank of the present utility model.
In the figure:
the circuit breaker comprises a circuit breaker shell 1, a top end sealing plate 2, a self-openable push rod 3, a first connecting seat 4, a sliding supporting seat 41, an anode connecting electrical contact 42, a driving piston 43, a high-voltage wire connecting seat 44, a high-voltage wire 45, an arc reduction gas tank 5, a gas tank 51, a gas conducting pipe 52, an electromagnetic valve 53, a supporting frame 54 and a second connecting seat 6.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution of the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
As shown in fig. 1 to 3.
The utility model provides a low-temperature-resistant self-energy sulfur hexafluoride high-voltage circuit breaker, which comprises a circuit breaker shell 1, a top end sealing plate 2, a self-energy opening and closing push rod 3, a first connecting seat 4, an arc reduction gas tank 5 and a second connecting seat 6, wherein: the top end sealing plates 2 are fixedly arranged at two ends of the breaker shell 1 respectively, and the self-openable push rods 3 are fixedly arranged on the surfaces of the two groups of top end sealing plates 2 respectively and are positioned in the breaker shell 1; the first connecting seat 4 and the second connecting seat 6 are respectively and slidably arranged in the breaker shell 1 and are fixedly connected with two groups of self-openable push rods 3; the arc reduction gas tank 5 is fixedly arranged in the middle of the breaker shell 1.
The first connecting seat 4 comprises a sliding support seat 41, an anode connecting electrical contact 42, a driving piston 43, a high-voltage line connecting seat 44 and a high-voltage line 45, wherein the sliding support seat 41 is slidably arranged in the circuit breaker shell 1, and the anode connecting electrical contact 42 is fixedly arranged at the front end of the sliding support seat 41; the driving piston 43 is fixedly arranged on the surface of the front end of the sliding support seat 41, and the high-voltage wire connecting seat 44 is fixedly arranged on the surface of the sliding support seat 41 and is positioned in a slot on the inner side of the circuit breaker shell 1; the high-voltage wire 45 is fixedly connected with the high-voltage wire connecting seat 44.
The arc reduction gas tank 5 comprises a gas tank 51, a gas conducting pipe 52, an electromagnetic valve 53 and a supporting frame 54, wherein the gas tank 51 is communicated with the breaker housing 1 through the gas conducting pipe 52, and the tank 51 is fixedly connected with the breaker housing 1 through the supporting frame 54; the electromagnetic valve 53 is fixedly installed inside the gas conduit 52.
The utility model provides a low-temperature-resistant self-energy sulfur hexafluoride high-voltage circuit breaker, wherein a circuit breaker shell 1 is a metal rod made of titanium alloy, a layer of temperature-resistant insulating layer is wrapped on the outer side of the circuit breaker shell 1, a pair of sliding grooves for moving a high-voltage wire connecting seat 44 inside a first connecting seat 4 and a second connecting seat 6 are formed on the outer side of the circuit breaker shell 1, and the sealing performance of the circuit breaker shell 1 is not affected by the sliding grooves; the top end sealing plate 2 is used for sealing two ends of the breaker shell 1 and supporting the self-opening and closing push rod 3; the self-opening and closing push rod 3 is used for pushing the first connecting seat 4 and the second connecting seat 6 to slide reciprocally in the breaker shell 1; the internal structures of the first connecting seat 4 and the second connecting seat 6 are completely identical except for the anode connecting electrical contact 42, and the anode connecting electrical contact 42 in the first connecting seat 4 is replaced by a cathode connecting groove in the second connecting seat 6; the anode contact 42 is a copper metal rod, the cathode connecting groove matched with the anode contact 42 is a cylindrical metal groove, and the driving piston 43 is a stainless steel metal shell; the outer diameter of the driving piston 43 is matched with the inner diameter of the breaker shell 1, and is used for being matched with the second connecting seat 6 to form two groups of electric contacts, the first connecting seat 4 and the second connecting seat 6 are closed and opened through the self-opening and closing push rod 3, when the first connecting seat 4 and the second connecting seat 6 are closed, the space between the driving piston 43 is reduced, air between the driving piston 43 is discharged outwards, the electric contacts are contacted, and the circuit is connected; when the first connecting seat 4 and the second connecting seat 6 are separated, the space between the driving pistons 43 becomes large, the external air is supplemented inwards, the electric contact is separated, and the circuit is disconnected; the arc-reduction gas tank 5 is a steel metal tank, the air pressure in the arc-reduction gas tank 5 is equal to other air pressure in the breaker shell 1, and sulfur hexafluoride gas is filled in the air tank 51; the electromagnetic valve 53 is a set of copper electromagnetic valves, and is used for enlarging the space between the driving pistons 43 when the first connecting seat 4 and the second connecting seat 6 are opened, sulfur hexafluoride gas in the arc reduction gas tank 5 is supplemented inwards, the sulfur hexafluoride gas has excellent insulating property, arc discharge under high voltage can be effectively prevented, and when two sets of electric contacts are disconnected, the electric arc can be rapidly extinguished, so that the stability and the safety of a circuit are ensured.
By utilizing the technical scheme of the utility model or under the inspired by the technical scheme of the utility model, a similar technical scheme is designed by a person skilled in the art, so that the technical effects are achieved, and the technical scheme falls into the protection scope of the utility model.
Claims (5)
1. A low temperature resistant self-energy sulfur hexafluoride high voltage circuit breaker is characterized in that: including circuit breaker shell (1), top shrouding (2), from ability switching push rod (3), first connecting seat (4), arc reduction gas tank (5) and second connecting seat (6), wherein: the top end sealing plates (2) are fixedly arranged at two ends of the circuit breaker shell (1), and the self-openable push rods (3) are respectively and fixedly arranged on the surfaces of the two groups of top end sealing plates (2) and are positioned in the circuit breaker shell (1); the first connecting seat (4) and the second connecting seat (6) are respectively and slidably arranged in the circuit breaker shell (1) and are fixedly connected with the two groups of self-openable push rods (3); the arc reduction gas tank (5) is fixedly arranged in the middle of the breaker shell (1).
2. A low temperature resistant self-energized sulfur hexafluoride high voltage circuit breaker of claim 1 wherein: the first connecting seat (4) comprises a sliding supporting seat (41), an anode electric contact (42), a driving piston (43), a high-voltage wire connecting seat (44) and a high-voltage wire (45), wherein the sliding supporting seat (41) is slidably arranged in the circuit breaker shell (1), and the anode electric contact (42) is fixedly arranged at the front end of the sliding supporting seat (41); the driving piston (43) is fixedly arranged on the surface of the front end of the sliding support seat (41), and the high-voltage wire connecting seat (44) is fixedly arranged on the surface of the sliding support seat (41) and is positioned in a groove on the inner side of the circuit breaker shell (1); the high-voltage wire (45) is fixedly connected with the high-voltage wire connecting seat (44).
3. A low temperature resistant self-energized sulfur hexafluoride high voltage circuit breaker of claim 1 wherein: the arc-reduction gas tank (5) comprises a gas tank (51), a gas conducting pipe (52), an electromagnetic valve (53) and a supporting frame (54), wherein the gas tank (51) is communicated with the breaker shell (1) through the gas conducting pipe (52), and the tank (51) is fixedly connected with the breaker shell (1) through the supporting frame (54); the electromagnetic valve (53) is fixedly arranged in the gas conducting pipe (52).
4. A low temperature resistant self-energized sulfur hexafluoride high voltage circuit breaker of claim 2 wherein: the internal structures of the first connecting seat (4) and the second connecting seat (6) are completely consistent except for the anode connecting electrical contact (42), and the anode connecting electrical contact (42) in the first connecting seat (4) is replaced by a cathode connecting groove in the second connecting seat (6); the anode electric contact (42) is a copper metal rod, the cathode connecting groove matched with the anode electric contact (42) is a cylindrical metal groove, and the driving piston (43) is a stainless steel metal shell; the outer diameter of the drive piston (43) is matched to the inner diameter of the circuit breaker housing (1).
5. A low temperature resistant self-energized sulfur hexafluoride high voltage circuit breaker of claim 3 wherein: the arc-reduction gas tank (5) is a steel metal tank, the air pressure in the arc-reduction gas tank (5) is equal to other air pressure in the breaker shell (1), and sulfur hexafluoride gas is filled in the air tank (51); the electromagnetic valve (53) is a group of copper electromagnetic valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322111116.XU CN220420494U (en) | 2023-08-08 | 2023-08-08 | Low-temperature-resistant self-energy sulfur hexafluoride high-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322111116.XU CN220420494U (en) | 2023-08-08 | 2023-08-08 | Low-temperature-resistant self-energy sulfur hexafluoride high-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220420494U true CN220420494U (en) | 2024-01-30 |
Family
ID=89653567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322111116.XU Active CN220420494U (en) | 2023-08-08 | 2023-08-08 | Low-temperature-resistant self-energy sulfur hexafluoride high-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220420494U (en) |
-
2023
- 2023-08-08 CN CN202322111116.XU patent/CN220420494U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |