CN211062868U - GIS equipment shell current diversion tool - Google Patents
GIS equipment shell current diversion tool Download PDFInfo
- Publication number
- CN211062868U CN211062868U CN201921928790.4U CN201921928790U CN211062868U CN 211062868 U CN211062868 U CN 211062868U CN 201921928790 U CN201921928790 U CN 201921928790U CN 211062868 U CN211062868 U CN 211062868U
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- China
- Prior art keywords
- flow guide
- screw
- water conservancy
- diversion
- gis
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910000906 Bronze Inorganic materials 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 5
- 239000010974 bronze Substances 0.000 claims description 5
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 11
- 238000007789 sealing Methods 0.000 abstract description 11
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 9
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000032683 aging Effects 0.000 abstract description 3
- 238000013021 overheating Methods 0.000 abstract description 3
- 239000003973 paint Substances 0.000 abstract description 3
- 239000012212 insulator Substances 0.000 abstract description 2
- 239000000565 sealant Substances 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010063493 Premature ageing Diseases 0.000 description 1
- 208000032038 Premature aging Diseases 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Connector Housings Or Holding Contact Members (AREA)
Abstract
The utility model discloses a GIS equipment housing electric current water conservancy diversion instrument relates to GIS equipment field. When the GIS equipment runs, a shell of the GIS equipment has strong induced current, and because O-shaped ring insulators and sealant exist between shell sections and the contact of fixing bolts is poor, the grounding and flow guiding are not smooth, so that the local heating is serious, the aging of GIS components is accelerated, the sealing performance is reduced, and the safe running of the equipment is influenced. The utility model discloses a cell type baffle and two sets of water conservancy diversion screw, the head conical surface of water conservancy diversion screw is equipped with the sword groove. The flow guide body is connected and fixed on the connecting flange of the adjacent section of the GIS equipment shell through the flow guide screw, the cutter groove is used for cutting paint and aluminum alloy on the surface of the connecting flange, comprehensive contact conduction is achieved, and the flow guide body can be fixed on the adjacent connecting flange through two sets of flow guide tools at the place where the supplementary section exists between the adjacent sections and is conducted by adopting a soft lead. The comprehensive grounding flow guide effect can be effectively realized, and the operation fault caused by overheating of local temperature rise is avoided.
Description
Technical Field
The utility model relates to a GIS equipment field especially relates to GIS equipment housing electric current water conservancy diversion instrument.
Background
At present, in GIS equipment with voltage class of 220kV and above, a GIS equipment shell generates induction current under the action of a bus alternating magnetic field. The GIS equipment shell is generally formed by connecting a plurality of metal cylinders in series through flange plates and bolts on the periphery of the end part of each metal cylinder, when two adjacent end faces are connected, in order to ensure air tightness, rubber O-shaped rings are clamped on contact faces and coated with vacuum silicone grease, and then the rubber O-shaped rings are fixed and tensioned through the bolts, so that the integral air tightness of the GIS equipment shell is ensured. Each section of metal cylinder body is in contact with the butt joint surface of the flange to realize electrical communication, so that each section of metal cylinder body of the GIS equipment shell can be grounded through a plurality of grounding points on the GIS equipment shell. When the equipment runs, strong induced current exists due to electromagnetic coupling of the GIS inner conductor and the shell, and then interphase circulating current and relative ground circulating current are generated. The circulation flow is accumulated on the shell or on a certain bolt with good flow guide due to poor contact of O-shaped ring insulators, sealing glue and fixing bolts at two ends of the shell, so that local heat generation is abnormal and serious, the heat generation can accelerate the aging of GIS components, the sealing performance is reduced, and the safe operation of equipment is influenced.
The GIS equipment fully-sealed structure makes the fault maintenance difficult, the power failure range is large, the average power failure time is long, and the common maintenance test relates to a non-fault element, so that the difficulty in treating the fault after the heating fault occurs is large. And the GIS barrel defect of generating heat takes place occasionally, and the most emergence of generating heat is arranged in the equipment of shell multiple spot ground connection and three-phase branch case, and the position such as face, flange face fixing bolt are arranged in the water conservancy diversion, generate heat for a long time and can influence GIS insulating part life-span, lead to the sealing member premature aging, make the sealing performance decline cause gas leakage. Therefore, the problem of abnormal heating at local positions such as the guide row is urgently needed to be solved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that solve and the technical task that provides are perfect and improve prior art scheme, provide GIS equipment shell electric current water conservancy diversion instrument to switch on GIS equipment shell induced-current, reduce the local heating and be the purpose. Therefore, the utility model adopts the following technical scheme.
GIS equipment casing electric current water conservancy diversion instrument, including the baffle of cell type cross-section, the baffle include water conservancy diversion mainboard and be located water conservancy diversion mainboard both sides with the integrative both sides wall of water conservancy diversion mainboard, the both sides wall on respectively be equipped with a set of water conservancy diversion screw, the head of water conservancy diversion screw is relative, the screw thread through-hole that establishes on the rotatory inwards passing side wall of head outside from both sides wall, the head of water conservancy diversion screw be the conical surface, be equipped with the sword groove that is used for cutting the flange quotation of GIS equipment casing segment on the conical surface. When the guide device is used, the guide body is sleeved on two connecting flange plates of a GIS equipment shell, then two groups of guide screws on two side walls are oppositely screwed, because the GIS equipment shell mostly adopts aluminum alloy, a head knife groove of each guide screw can conveniently cut off paint on the surface of the flange plate when the GIS equipment shell is screwed, the aluminum alloy can be cut off after the GIS equipment shell is screwed, the comprehensive conduction contact between each guide screw and the aluminum alloy is realized, two sections of the GIS equipment shell can be well conducted through the guide screws and the guide body, only a plurality of guide devices are arranged between every two connecting flange plates in a surrounding mode, the comprehensive guide effect can be realized, and the problem of overheating of local temperature rise caused by unsmooth guide due to the reasons of the sealing rings and the sealant between the sections is avoided.
As a preferable technical means: the flow guide device further comprises a flexible connecting wire, connecting terminals fastened by screws are arranged at two ends of the connecting wire, a thread through hole vertical to the flow guide main board is formed in the flow guide main board of the flow guide body, the head of the flow guide screw penetrates through a connecting terminal hole in the connecting wire, and then the head of the flow guide screw is screwed to penetrate through a thread hole in the flow guide main board and is fastened. Aiming at the shorter compensation segment between the segments, two sets of flow guide devices are connected and fixed on two groups of connecting flange plates at two sides of the compensation segment, and one connecting lead is fastened on two flow guide bodies, so that long-distance flow guide communication can be conveniently realized, and flow guide circulation of the two segments and the compensation segment can be simultaneously realized.
As a preferable technical means: the number of the knife grooves is 2, the knife grooves are rotationally and symmetrically arranged, the knife grooves are triangular slope grooves with inclined planes, one edge of the knife grooves in the screwing direction of the diversion screw is an arc line intersected with the conical surface, and the other 2 edges of the knife grooves are plane side walls which are axially consistent with the diversion screw. The cutter groove is simple in shape and structure, good in inclination cutting effect and convenient to process.
As a preferable technical means: the material of the flow guide body and the flow guide screw is tin bronze. The tin bronze has higher hardness, good shape stability and good inclination cutting effect on the aluminum alloy flange plate, and can effectively keep a conduction state after being screwed down.
As a preferable technical means: the number of the guide screws in each group is the same and is 2-4. Can effectively realize the fastening, stability is good, and the conduction cross-section is great, switches on effectually.
As a preferable technical means: the distance from the highest end to the lowest end of the cutter groove in the axial direction of the diversion screw is not more than the screw pitch of the diversion screw. Through a relatively small rotation amount, the comprehensive flow guiding contact between the flow guiding screw and the flange plate can be realized.
As a preferable technical means: the thread pitch is between 0.8 and 1.2 mm. The thread pitch is small, so that fine screwing operation can be realized, and the cutting amount is small and the operation force is small when the guide screw is used for fastening and cutting.
Has the advantages that: this device can effectively realize the turn-on connection between the festival section, realizes more comprehensive water conservancy diversion effect, has avoided the overheated problem of local temperature rise that the water conservancy diversion is smooth to appear because of the reason of sealed glue of internode sealing washer, prevents to influence GIS insulating part life-span because of long-term overheated, has avoided the too early ageing of sealing member to cause the gas leakage that sealing performance descends and arouses, effectively ensures the safe and stable operation of GIS equipment.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the flow guiding connection between adjacent segments of the present invention.
Fig. 3 is a schematic view of a flow guide connection with shorter compensating segments between segments according to the present invention.
Fig. 4 is a schematic view of the flow guiding screw of the present invention.
In the figure: 1-a flow conductor; 2-a guide screw; 3-connecting a wire; 4-a connection terminal; 5-GIS equipment housing; 6-a compensation segment; 201-a conical surface; 202-knife groove.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1, the GIS device housing current diversion tool includes a diversion body 1 with a groove-shaped cross section, the diversion body 1 includes a diversion main board and two side walls located at two sides of the diversion main board and integrated with the diversion main board, a set of diversion screws 2 are respectively arranged on the two side walls, the heads of the diversion screws 2 are opposite, the heads rotate from the outer sides of the two side walls to penetrate through threaded through holes arranged on the side walls, the heads of the diversion screws 2 are conical surfaces 201, and the conical surfaces 201 are provided with cutter grooves 202 for cutting flange disc surfaces of 5 segments of GIS device housings.
As shown in fig. 2, when two adjacent segments are guided, the guide body 1 is sleeved on two connecting flange plates of the GIS device housing 5 from the outside, then two groups of guide screws 2 on two side walls of the guide body 1 are screwed relatively, because the GIS device housing 5 is mostly made of aluminum alloy, paint on the surface of the flange plate can be conveniently cut off when the head knife grooves 202 of the guide screws 2 are screwed, and the aluminum alloy can be cut off after the head knife grooves are screwed, so that the guide screws 2 are in overall conductive contact with the aluminum alloy, the two segments of the GIS device housing 5 can be better conducted through the guide screws 2 and the guide body 1, 4 sets of the guide devices are arranged between every two connecting flange plates in a surrounding manner, so that a comprehensive guide effect can be realized, and the problem of local overheating due to unsmooth flow guide caused by the inter-segment sealing rings and the sealing glue is avoided.
As shown in fig. 3, in order to realize the diversion connection with the compensation segments 6 having a short length between the segments, the diversion device further includes a flexible connecting wire 3, connecting terminals 4 fastened by screws are provided at both ends of the connecting wire 3, a threaded through hole perpendicular to the diversion main board is provided on the diversion main board of the diversion body 1, and the head of the diversion screw 2 passes through the connecting terminal 4 hole on the connecting wire 3, then is screwed through the threaded hole on the diversion main board, and is fastened. Aiming at the situation that a shorter compensation section 6 exists between the sections, two sets of flow guide devices are connected and fixed on two sets of connecting flange plates on two sides of the compensation section 6, and one connecting lead 3 is fastened on two flow guide bodies 1, so that long-distance flow guide communication can be conveniently realized, and flow guide circulation of the two sections and the compensation section 6 can be simultaneously realized.
As shown in fig. 4, in order to achieve a better cutting effect, 2 knife grooves 202 are provided, and are arranged in a rotational symmetry manner, the knife grooves 202 are slope grooves of a triangular oblique cutting plane, one side of the knife grooves 202 in the screwing direction of the guide screw 2 is an arc line intersecting with the conical surface 201, and the other 2 sides are plane side walls which are axially consistent with the guide screw 2. The cutter groove 202 is simple in shape and structure, good in inclination cutting effect and convenient to process.
In order to achieve a better cutting effect and maintain a conduction effect for a long time, the material of the flow guide body 1 and the material of the flow guide screw 2 are both tin bronze. The tin bronze has higher hardness, good shape stability and good inclination cutting effect on the aluminum alloy flange plate, and can effectively keep a conduction state after being screwed down.
In this example, the number of the guide screws 2 in each group is 3. Can effectively realize the fastening, stability is good, and the conduction cross-section is great, switches on effectually.
In this example, the distance from the highest end to the lowest end of the knife groove 202 in the axial direction of the guide screw 2 is equal to the pitch of the guide screw 2. The flow-guiding screw 2 can be in full flow-guiding contact with the flange plate by a relatively small rotation amount.
In this example, the pitch is 1 mm. The thread pitch is small, so that fine screwing operation can be realized, and the cutting amount is small and the operation force is small when the guide screw 2 is used for fastening and cutting.
The GIS equipment housing current diversion tool shown in fig. 1-4 is a specific embodiment of the present invention, which embodies the substantial features and progress of the present invention, and can modify the same in terms of shape, structure, etc. according to the practical needs of use, all within the scope of protection of the present solution.
Claims (7)
- GIS equipment housing electric current water conservancy diversion instrument, its characterized in that: the flow guide body comprises a flow guide body (1) with a groove-shaped cross section, wherein the flow guide body (1) comprises a flow guide main plate and two side walls which are positioned on two sides of the flow guide main plate and integrated with the flow guide main plate, a group of flow guide screws (2) are respectively arranged on the two side walls, the heads of the flow guide screws (2) are opposite, the heads rotate from the outer sides of the two side walls to inwards penetrate through threaded through holes formed in the side walls, the heads of the flow guide screws (2) are conical surfaces (201), and tool grooves (202) used for cutting flange disc surfaces of sections of GIS equipment shells (5) are formed in the conical.
- 2. The GIS device housing current diversion tool of claim 1, wherein: GIS equipment shell electric current water conservancy diversion instrument still includes soft connecting wire (3), and the both ends of connecting wire (3) are equipped with connecting terminal (4) with the screw-up, the water conservancy diversion mainboard of water conservancy diversion body (1) on be equipped with water conservancy diversion mainboard vertically screw through hole, connecting terminal (4) hole on connecting wire (3) is passed to the head of water conservancy diversion screw (2), then revolves to twist and pass the screw hole on the water conservancy diversion mainboard to the fastening.
- 3. The GIS device housing current diversion tool of claim 1, wherein: the flow guiding screw is characterized in that the number of the cutter grooves (202) is 2, the cutter grooves (202) are rotationally and symmetrically arranged, the cutter grooves (202) are slope grooves of triangular oblique cutting planes, one side of the cutter grooves (202) in the screwing direction of the flow guiding screw (2) is an arc line intersected with the conical surface (201), and the other 2 sides of the cutter grooves are plane side walls which are axially consistent with the flow guiding screw (2).
- 4. The GIS device housing current diversion tool of claim 1, wherein: the material of the flow guide body (1) and the material of the flow guide screw (2) are both tin bronze.
- 5. The GIS device housing current diversion tool of claim 1, wherein: the number of each group of guide screws (2) is the same and is 2-4.
- 6. The GIS device housing current diversion tool of claim 3, wherein: the distance from the highest end to the lowest end of the knife groove (202) in the axial direction of the diversion screw (2) is less than or equal to the screw pitch of the diversion screw (2).
- 7. The GIS device housing current diversion tool of claim 4, wherein: the thread pitch is between 0.8 and 1.2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921928790.4U CN211062868U (en) | 2019-11-10 | 2019-11-10 | GIS equipment shell current diversion tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921928790.4U CN211062868U (en) | 2019-11-10 | 2019-11-10 | GIS equipment shell current diversion tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211062868U true CN211062868U (en) | 2020-07-21 |
Family
ID=71595642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921928790.4U Active CN211062868U (en) | 2019-11-10 | 2019-11-10 | GIS equipment shell current diversion tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211062868U (en) |
-
2019
- 2019-11-10 CN CN201921928790.4U patent/CN211062868U/en active Active
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