CN208123892U - The universal supplementary device of outdoor ring main unit SF6 gas - Google Patents
The universal supplementary device of outdoor ring main unit SF6 gas Download PDFInfo
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- CN208123892U CN208123892U CN201820311212.5U CN201820311212U CN208123892U CN 208123892 U CN208123892 U CN 208123892U CN 201820311212 U CN201820311212 U CN 201820311212U CN 208123892 U CN208123892 U CN 208123892U
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Abstract
The utility model discloses a kind of universal supplementary device of outdoor ring main unit SF6 gas, and SF6 gas cylinder connects gas-guide tube, gas-guide tube connection universal type air inflation nozzle by gas cylinder valve；The universal air inflation nozzle includes a connector and detachable is installed at least two fixing pieces on connector, and connector has a filling channel and at least two-stage step portion；Filling channel is connected to gas-guide tube, sets fixation hole on fixed part；Every level-one stage portion sets the first installation position, and corresponding first installation position of fixation hole is equipped with the second installation position, and the second installation position is detachable to adapt to corresponding first installation position, and the periphery holding of ring part and connector is for for the annular gap to gas filled joint adapter；The internal diameter of all ring parts is not identical；Take this, by universal air inflation nozzle, can match different bores to gas-charging connection, thus, improve the versatility of supplementary device, improve the working efficiency of electrical equipment repairing maintenance, reduce the cost of repairing maintenance electrical equipment.
Description
Technical field
The utility model relates to outdoor ring main unit maintenance area technology, a kind of outdoor ring main unit SF6 gas is referred in particular to
Universal supplementary device.
Background technique
The breakdown voltage of SF6 gas is 2.5 to 3 times of air puncture voltage, arc extinguishing ability under same pressure
It is 100 times of air blowout ability, under 4 atmospheric pressure, medium electric strength is suitable with transformer oil, and SF6 gas has good
Good insulation performance and excellent arc extinction performance, are widely used in electrical equipment, such as outdoor ring main unit.Outdoor ring main unit is being transported
During row due to various, it may appear that the case where SF6 gas leaks causes shadow to the safe operation of electric system
It rings.After there is the leakage of SF6 gas in outdoor ring main unit, it will usually after the electrical equipment replacement in outdoor ring main unit, Zai Fan factory
Supplement SF6 gas is carried out to electrical equipment, the gas-charging connection of existing supplement SF6 gas is not general, corresponding different electrical equipment
Model need to look for corresponding air charging system, come inconvenience, maintenance of electric device to daily maintenance and emergency first-aid repair work belt
Repairing working efficiency is low, and the at high cost of electrical equipment is repaired in maintenance.
Utility model content
In view of this, the utility model is in view of the existing deficiencies of the prior art, main purpose is to provide a kind of outdoor ring
The universal supplementary device of net cabinet SF6 gas, by universal air inflation nozzle, can match different bores to gas-charging connection,
To improve the versatility of supplementary device, improve the working efficiency of electrical equipment repairing maintenance, reduce repairing maintenance and electrically set
Standby cost.
To achieve the above object, the utility model is using following technical solution：
A kind of universal supplementary device of outdoor ring main unit SF6 gas, including SF6 gas cylinder, gas cylinder valve, gas-guide tube and
For connecting the universal air inflation nozzle to gas-charging connection of electrical equipment to be inflated；The SF6 gas cylinder is connected by gas cylinder valve
The beginning of gas-guide tube, the gas cylinder valve are equipped with pressure indicator, the rear end of the end connection universal type air inflation nozzle of gas-guide tube；
The universal air inflation nozzle includes a connector and detachable is installed at least two fixing pieces on connector, described
Connector has a filling channel and is located on at least two-stage step portion of filling channel periphery；The filling channel is connected to air guide
Pipe, the outer diameter for the stage portions at different levels arranged from universal air inflation nozzle rear end toward front end successively becomes smaller, fixing piece include fixed part with
And the ring part integrally extended to form forward along fixed part periphery, the fixed part are equipped with fixation hole；Every level-one stage portion
Outer wall is equipped with the first installation position, and corresponding first installation position of the fixation hole is equipped with the second installation position, and second installation position can
Detachable adapts to corresponding first installation position, and the periphery holding of ring part and connector is for for the ring to gas filled joint adapter
Shape gap；And the internal diameter of the ring part of all fixing pieces is not identical.
As a preferred embodiment, the front end face of the fixed part be provided with for guarantee to gas-charging connection and fixed part it
Between air-tightness first seal, first seal is located in respective annular gap.
As a preferred embodiment, the outer peripheral surface of first seal is in contact with the inner wall in respective annular portion, and first
The internal diameter of sealing element adapts to the outer diameter in respective step portion.
As a preferred embodiment, the first seal is ring-shaped rubber pad.
As a preferred embodiment, first installation position is external thread structure, and second installation position is internal screw thread knot
Structure, the external thread structure adapt to internal thread structure.
As a preferred embodiment, adapt to the ring part of the fixing piece of upper level stage portion internal diameter ratio adapt to it is next
The internal diameter of the ring part of grade stage portion is big.
As a preferred embodiment, the front end of the connector has for protruding into the positioning head in gas-charging connection,
The periphery of each ring part and positioning head is kept for the annular gap to gas filled joint adapter；It is formed in the rear end of positioning head
There is annular stop platform.
The utility model has clear advantage and beneficial effect compared with prior art, specifically：By universal
Air inflation nozzle, can match different bores to gas-charging connection, thus, improve the versatility of supplementary device, improve electrical equipment
The working efficiency of maintenance is repaired, the cost of repairing maintenance electrical equipment is reduced；And the smart structural design to universal gas nozzle
Rationally, such as：By ring-shaped rubber pad, it can be improved universal air inflation nozzle and to the air-tightness between charger, prevent
Occurs the problem of leakage situation in gas replenishment process.
For the structure feature and effect for more clearly illustrating the utility model, come with reference to the accompanying drawing with specific embodiment pair
The utility model is described in detail.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the embodiment of the utility model；
Fig. 2 is the cross section structure schematic diagram of the universal air inflation nozzle of the embodiment of the utility model；
Fig. 3 is the first using state structure diagram of the universal air inflation nozzle of the embodiment of the utility model；
Fig. 4 is the second using state structure diagram of the universal air inflation nozzle of the embodiment of the utility model；
Fig. 5 is the third using state structure diagram of the universal air inflation nozzle of the embodiment of the utility model.
Description of drawing identification：
10, SF6 gas cylinder 20, gas cylinder valve
21, pressure indicator 30, gas-guide tube
40, SF6 gas tank 41, to gas-charging connection
50, universal air inflation nozzle 51, the first fixing piece
511, fixed part 512, ring part
52, the second fixing piece 521, fixed part
522, ring part 53, third fixing piece
531, fixed part 532, ring part
54, connector 541, filling channel
542, positioning head 543, annular stop platform
544, first order stage portion 545, second level stage portion
546, third level stage portion 61, first seal
62, first seal 63, first seal
71, to gas-charging connection 72, to gas-charging connection
73, to gas-charging connection A, the first installation position
B, the first installation position C, the first installation position
X, the second installation position Y, the second installation position
Z, the second installation position.
Specific embodiment
It please refers to shown in Fig. 1 to Fig. 5, that show the specific structure of the embodiment of the utility model, a kind of open air ring
The universal supplementary device of net cabinet SF6 gas, including SF6 gas cylinder 10, gas cylinder valve 20, gas-guide tube 30 and for connecting wait fill
The universal air inflation nozzle to gas-charging connection of gas electrical equipment, in the present embodiment, electrical equipment to be inflated are SF6 gas tank
40, wherein：
The SF6 gas cylinder 10 connects the beginning of gas-guide tube 30 by gas cylinder valve 20, and the gas cylinder valve 20 is equipped with pressure
Power indicator 21, the rear end of the end connection universal type air inflation nozzle of gas-guide tube 30, the universal air inflation nozzle include a connector
At least two fixing pieces on connector are installed on detachable, the connector is for installing to which in gas-charging connection, fixing piece is used
In being arranged outside to gas-charging connection, the connector has a filling channel and at least two-stage step portion, the filling channel connection
The outer diameter of gas-guide tube 30, the stage portions at different levels arranged from universal air inflation nozzle rear end toward front end successively becomes smaller, and fixing piece includes solid
The periphery of the ring part determining portion and integrally being extended to form forward along fixed part periphery, ring part and connector keep for for
The annular gap of gas filled joint adapter；And the internal diameter of the ring part of all fixing pieces is not identical；Adapt to upper level stage portion
Fixing piece ring part ring part of the internal diameter than adapting to next stage stage portion internal diameter it is big；The fixed part is equipped with solid
Determine hole；The outer wall of every level-one stage portion is equipped with the first installation position, and corresponding first installation position of the fixation hole is equipped with the second installation
Position, second installation position is detachable to adapt to corresponding first installation position；Preferably, first installation position is external screw thread
Structure, second installation position are internal thread structure, and the external thread structure adapts to internal thread structure, are certainly not limited to outer
Helicitic texture and internal thread structure.
The front end face of the fixed part is provided with for guaranteeing to the first close of air-tightness between gas-charging connection and fixed part
Sealing, first seal are located in respective annular gap, in the present embodiment, the outer peripheral surface of first seal and respective annular portion
Inner wall be in contact, and the internal diameter of first seal adapts to the outer diameter in respective step portion；The first seal is annular
Rubber pad；The front end of the connector has for protruding into the positioning head in gas-charging connection, each ring part and positioning head
The periphery in portion is kept for the annular gap to gas filled joint adapter；Annular stop platform is formed in the rear end of positioning head.
In the present embodiment, by taking the diameter for matching three kinds of different mouths waits for the universal air inflation nozzle 50 of gas-charging connection as an example, not
It is limited to three kinds, as shown in Fig. 2, universal air inflation nozzle 50 includes connector 54 and three fixing pieces, connector 51 has an inflation logical
Road 541, positioning head 542, annular stop platform 543 and three-level stage portion, three-level stage portion be respectively first order stage portion 544,
Second level stage portion 545 and third level stage portion 546, three fixing pieces are respectively the first fixing piece 51, the second fixing piece 52 and
Three fixing pieces 53；First fixing piece 51 includes fixed part 511 and ring part 512, and fixed part 511 is equipped with the first fixation hole, the
Two fixing pieces 52 include fixed part 521 and ring part 522, and fixed part 521 is equipped with the second fixation hole, and third fixing piece 53 includes
Fixed part 531 and ring part 532, fixed part 531 are equipped with third fixation hole；The outer wall of first order stage portion 544 is equipped with the
The outer wall of one installation position A, second level stage portion 545 are equipped with the first installation position B, and the outer wall of third level stage portion 546 is equipped with
First installation position C.
As shown in figure 3, the corresponding first installation position A of the first fixation hole is equipped with the second installation position X, the first installation position A is suitable
Assigned in the second installation position X, the front end face of fixed part 511 is provided with for guaranteeing to gas between gas-charging connection 71 and fixed part 511
The first seal 61 of close property, the internal diameter of first seal 61 adapt to the outer diameter of first order stage portion 544.
As shown in figure 4, the corresponding first installation position B of the second fixation hole is equipped with the second installation position Y, the first installation position B is suitable
Assigned in the second installation position Y, the front end face of fixed part 521 is provided with for guaranteeing to gas between gas-charging connection 72 and fixed part 521
The first seal 62 of close property, the internal diameter of first seal 62 adapt to the outer diameter of second level stage portion 545.
As shown in figure 5, the corresponding first installation position C of third fixation hole is equipped with the second installation position Z, the first installation position C is suitable
Assigned in the second installation position Z, the front end face of fixed part 531 is provided with for guaranteeing to gas between gas-charging connection 73 and fixed part 531
The first seal 63 of close property, the internal diameter of first seal 63 adapt to the outer diameter of third level stage portion 546.
Rough job step is as follows：
It is the preparation before operation first, the preparation including the inspection of the scene of a crime and material；By the inspection of the scene of a crime, obtain outdoor
The nameplate parameter and SF6 air gauge caliber size of ring network cabinet；Nameplate parameter data is inquired, finding out outdoor ring main unit, it switchs gas tank
The specified value of SF6 gas pressure；The material of preparation include SF6 gas cylinder 10, gas cylinder valve 20, gas-guide tube 30, on SF6 gas tank 40
The consistent universal air inflation nozzle 50 of SF6 air gauge caliber size, same specification SF6 air gauge；
Electrical verification followed by is carried out to outdoor ring main unit；After temporarily enclose and cover to operation field, to outdoor ring main unit
Accessible position carries out electrical verification, this is safety measure, confirms that the outdoor ring main unit position that can be touched is not charged.
It is that operation is inflated to outdoor ring main unit again；The SF6 air gauge of SF6 gas tank 40 is removed to check SF6 air pressure
Whether table is normal, if SF6 air gauge is normal, shows that 40 air pressure of SF6 gas tank is insufficient, need to supplement SF6 gas；If SF6 gas
It presses table abnormal, then needs detection 40 pressure of SF6 gas tank；The method for supplementing SF6 gas：Universal air inflation nozzle 50 is mounted on wait inflate
On connector, the gas cylinder valve 20 of SF6 gas cylinder 10 is opened, is inflated, when pressure indicator 21 indicates that SF6 atmospheric pressure value reaches regulation
The gas cylinder valve 20 that SF6 gas cylinder 10 is closed when value, dismantles universal air inflation nozzle 50；Normal SF6 air gauge is mounted on SF6 again
On gas tank 40, SF6 air gauge indicates air pressure normal value at this time.
The design focal point of the utility model is, mainly passes through universal air inflation nozzle, can match different bores
To gas-charging connection, thus, the versatility of supplementary device is improved, the working efficiency of electrical equipment repairing maintenance is improved, reduction is robbed
Repair the cost of maintenance electrical equipment；And it is reasonable to the smart structural design of universal gas nozzle, such as：By ring-shaped rubber pad,
It can be improved universal air inflation nozzle and to the air-tightness between charger, prevent occurring asking for leakage situation in gas replenishment process
Topic.
The above descriptions are merely preferred embodiments of the present invention, not makees to the technical scope of the utility model
Any restrictions, therefore any trickle amendment made by the above technical examples according to the technical essence of the present invention, equivalent change
Change and modify, is still within the scope of the technical solutions of the present invention.
Claims (7)
1. a kind of universal supplementary device of outdoor ring main unit SF6 gas, it is characterised in that：Including SF6 gas cylinder, gas cylinder valve,
Gas-guide tube and the universal air inflation nozzle to gas-charging connection for connecting electrical equipment to be inflated；The SF6 gas cylinder passes through gas
Bottle valve connects the beginning of gas-guide tube, and the gas cylinder valve is equipped with pressure indicator, and the end connection universal type of gas-guide tube fills
The rear end of gas nozzle；
The universal air inflation nozzle includes a connector and detachable is installed at least two fixing pieces on connector, the connection
Head has a filling channel and is located on at least two-stage step portion of filling channel periphery；The filling channel is connected to gas-guide tube,
The outer diameter for the stage portions at different levels arranged from universal air inflation nozzle rear end toward front end successively becomes smaller, and fixing piece includes fixed part and edge
The ring part that fixed part periphery integrally extends to form forward, the fixed part are equipped with fixation hole；The outer wall of every level-one stage portion
It is equipped with the first installation position, corresponding first installation position of the fixation hole is equipped with the second installation position, and second installation position is detachable
Formula adapts to corresponding first installation position, and the periphery holding of ring part and connector is for between the annular of gas filled joint adapter
Gap；And the internal diameter of the ring part of all fixing pieces is not identical.
2. the universal supplementary device of outdoor ring main unit SF6 gas according to claim 1, it is characterised in that：It is described solid
The front end face for determining portion is provided with for guaranteeing the first seal to air-tightness between gas-charging connection and fixed part, first seal
In respective annular gap.
3. the universal supplementary device of outdoor ring main unit SF6 gas according to claim 2, it is characterised in that：First is close
The outer peripheral surface of sealing is in contact with the inner wall in respective annular portion, and the internal diameter of first seal adapts to the outer of respective step portion
Diameter.
4. the universal supplementary device of outdoor ring main unit SF6 gas according to claim 2, it is characterised in that：Described
One sealing element is ring-shaped rubber pad.
5. the universal supplementary device of outdoor ring main unit SF6 gas according to claim 1, it is characterised in that：Described
One installation position is external thread structure, and second installation position is internal thread structure, and the external thread structure adapts to internal screw thread knot
Structure.
6. the universal supplementary device of outdoor ring main unit SF6 gas according to claim 1, it is characterised in that：It adapts to
The internal diameter of ring part of the internal diameter of the ring part of the fixing piece of upper level stage portion than adapting to next stage stage portion is big.
7. the universal supplementary device of outdoor ring main unit SF6 gas according to claim 1, it is characterised in that：The company
The front end of connector has for protruding into the positioning head in gas-charging connection, and the periphery holding of each ring part and positioning head supplies
Annular gap to gas filled joint adapter；Annular stop platform is formed in the rear end of positioning head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820311212.5U CN208123892U (en) | 2018-03-07 | 2018-03-07 | The universal supplementary device of outdoor ring main unit SF6 gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820311212.5U CN208123892U (en) | 2018-03-07 | 2018-03-07 | The universal supplementary device of outdoor ring main unit SF6 gas |
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| Publication Number | Publication Date |
|---|---|
| CN208123892U true CN208123892U (en) | 2018-11-20 |
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ID=64205478
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820311212.5U Active CN208123892U (en) | 2018-03-07 | 2018-03-07 | The universal supplementary device of outdoor ring main unit SF6 gas |
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| Country | Link |
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| CN (1) | CN208123892U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111554538A (en) * | 2020-05-09 | 2020-08-18 | 贵州电网有限责任公司 | General type SF6 aerifys test joint |
-
2018
- 2018-03-07 CN CN201820311212.5U patent/CN208123892U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111554538A (en) * | 2020-05-09 | 2020-08-18 | 贵州电网有限责任公司 | General type SF6 aerifys test joint |
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