CN209516450U - Gas-insulated pipeline with insulation connection structure - Google Patents
Gas-insulated pipeline with insulation connection structure Download PDFInfo
- Publication number
- CN209516450U CN209516450U CN201920257451.1U CN201920257451U CN209516450U CN 209516450 U CN209516450 U CN 209516450U CN 201920257451 U CN201920257451 U CN 201920257451U CN 209516450 U CN209516450 U CN 209516450U
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- Prior art keywords
- metal flange
- gas
- bolt
- insulation
- dead ring
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Abstract
The utility model relates to a kind of gas-insulated pipeline with insulation connection structure, shell are made of at least two pipeline sections, and two neighboring pipeline section passes through an insulation connection structure connection.Each insulation connection structure includes a dead ring, two bolts, two insulating sleeves, three sealing rings, a becket and two insulator caps.Each insulating sleeve is sheathed on bolt and bolt and the first metal flange insulate.Sealing ring is used for sealing gas insulated pipe line.Becket is set between the first metal flange and the second metal flange, and an annular groove coaxial with dead ring, one be provided in sealing ring in each annular groove are each provided on its two surface toward and away from dead ring.Insulator cap is sheathed on the head of bolt and matches with insulating sleeve to form the enclosure space of a receiving bolt head.Gas-insulated pipeline according to the present utility model, can be by the induced voltage of different location on measurement shell come quick fault point.
Description
Technical field
The utility model relates to Cubicle Gas-Insulated Switchgear fields, especially with the gas of insulation connection structure
Body insulated pipe line.
Background technique
Cubicle Gas-Insulated Switchgear is internally provided with conductor.When work, alive on conductor, it is corresponding
Metal shell can generate induced voltage.It, can be by measuring shell if can be by the metal shell electrically insulated from one another of different conductor
Induced voltage on body comes the conductor of quick positioning failure or the element of failure.And in the prior art, gas-insulated metal pipe
The metal flange of the adjacent tubular segments of line shell is fixed by bolt, and bolt is directly contacted with metal flange, so that induction
Electric current circulates on pipeline casing.Therefore, it is impossible to by the induced voltage on measurement pipeline shell come quick fault point.
Utility model content
The purpose of the utility model is to provide a kind of gas-insulated pipeline with insulation connection structure, can pass through survey
The induced voltage for measuring different location on shell carrys out quick fault point.
One aspect according to the present utility model, the gas-insulated pipeline with insulation connection structure, shell by
At least two pipeline sections composition, each pipeline section has first metal flange and second metal flange, two neighboring
First metal flange of the pipeline section is connected with second metal flange by an insulation connection structure.It is each described
Insulation connection structure includes a dead ring and at least two bolts.Dead ring its be located at first metal flange and its adjoining
Second metal flange between.Each bolt successively protrudes into first metal flange, the dead ring and described
Three is simultaneously fixed in one hole of the second metal flange.The insulation connection structure further includes at least two insulating sleeves, at least
Three sealing rings, at least one becket and at least at least two insulator caps.Each insulating sleeve is sheathed on the bolt
And the hole is protruded into so that the bolt and first metal flange to insulate.The sealing ring is for sealing the gas-insulated
Pipeline.Becket is set between first metal flange and second metal flange, and its toward and away from it is described absolutely
It is each provided with an annular groove coaxial with the dead ring on two surfaces of edge ring, is arranged in each annular groove
There is one in the sealing ring.Insulator cap is sheathed on the head of the bolt and matches with the insulating sleeve to form one
A enclosure space for accommodating the bolt head.By dead ring, the first metal flange is electrically insulated with the second metal flange；Pass through
Insulating sleeve, the first metal flange are electrically insulated with bolt；Cooperated by insulating sleeve and insulator cap, by the head captured of bolt in
In it, when pipeline casing generates higher induced overvoltage, insulator cap can increase bolt with insulating sleeve and its head is ipsilateral
Pipeline section shell between creepage distance and flashover distance, to guarantee to be electrically insulated between the ipsilateral pipeline section shell of bolt and its head
Reliability.Therefore, by the insulation connection structure of the utility model gas-insulated pipeline, it can guarantee well the first metal
The reliability of flange and the second metal flange electrical isolation guarantees that the gas-insulated pipeline of the utility model can be by measuring shell
The induced voltage of upper different location carrys out quick fault point.
Another aspect according to the present utility model, the gas-insulated pipeline include four sealing rings and two institutes
State becket.Two beckets are located at the two sides of the dead ring.
It is according to the present utility model in another aspect, being provided with a dead ring limiting stand, the insulation sleeve on the dead ring
One end of pipe is protruded into inside the dead ring and is resisted against the dead ring limiting stand.Pass through dead ring limiting stand, it is ensured that absolutely
First metal flange and bolt are reliably electrically insulated by edge pipe.
Another aspect according to the present utility model, the insulating sleeve include an insulation tube and a felt pad.Insulation
Pipe protrudes into the hole.Felt pad is located at outside first metal flange and against first metal flange, the insulation
Cushion cover is set to the head of the bolt.
Another aspect according to the present utility model, one end of the felt pad towards the insulation tube are provided with an insulation
Limiting stand is padded, one end of the insulation tube is protruded into inside the felt pad and is resisted against the felt pad limiting stand.Pass through insulation
Pad limiting stand, it is ensured that the first metal flange and bolt are reliably electrically insulated by insulation tube.
Another aspect according to the present utility model, one end of the insulator cap towards the insulating sleeve are provided with a protrusion
Portion, the lug boss protrude into inside the felt pad.By lug boss, guarantee that insulator cap and felt pad are complete by the head of bolt
In being wrapped in, guarantee the reliability of insulation.
Another aspect according to the present utility model, the lug boss are the annular relief coaxial with the insulating sleeve.
Another aspect according to the present utility model, the annular relief are removably connected by least one clamping structure
It is connected to the insulating sleeve.By clamping structure, it can guarantee that insulator cap is reliably mounted on insulating sleeve.
Another aspect according to the present utility model, the clamping structure are mutually matched one same with the insulating sleeve
The convex annular of axis is stupefied and an annular groove, stupefied one be set in the lug boss and the insulating sleeve of the convex annular
A, the annular groove is set to another in the lug boss and the insulating sleeve.
Detailed description of the invention
The following drawings only does schematic illustration and explanation to the utility model, does not limit the scope of the utility model.
Fig. 1 is a kind of structural schematic diagram of exemplary embodiment of the utility model gas-insulated pipeline.
Fig. 2 is the enlarged drawing of part M in Fig. 1.
Label declaration
11 first metal flanges
12 second metal flanges
21 dead rings
211 dead ring limiting stands
31 bolts
41 insulating sleeves
42 insulation tubes
43 felt pads
431 felt pad limiting stands
51 sealing rings
61 beckets
71 insulator caps
711 lug bosses
Specific embodiment
In order to which the technical features, objects and effects to utility model are more clearly understood, Detailed description of the invention sheet is now compareed
The specific embodiment of utility model, identical label indicates that structure is identical or structure is similar but the identical portion of function in the various figures
Part.
Herein, " schematic " expression " serving as examplea, instances, or illustrations " should not will be described herein as " showing
Any diagram, the embodiment of meaning property " are construed to technical solution that is a kind of preferred or more having advantages.
To make simplified form, part related to the present invention is only schematically shown in each figure, they are not represented
Its practical structures as product.In addition, to be easy to understand simplified form, with identical structure or function in some figures
Component only symbolically depicts one of those, or has only marked one of those.
Herein, " first ", " second " etc. are only used for mutual differentiation, rather than indicate their significance level and sequence
Deng.
Fig. 1 is a kind of structural schematic diagram of exemplary embodiment of the utility model gas-insulated pipeline.The gas is exhausted
The shell of edge pipeline is formed by least two pipeline sections and (is only symbolically shown two in Fig. 1), and each pipeline section has one first
Metal flange 11 and second metal flange 12.The first metal flange 11 and the second metal flange 12 of two neighboring pipeline section are logical
An insulation connection structure is crossed to be connected.The insulation connection structure includes dead ring 21, bolt 31, insulating sleeve 41, insulator cap
71, becket 61 and sealing ring 51.Dead ring 21 be located at the first metal flange 11 and its adjoining second metal flange 12 it
Between, it is used for 12 electrically insulated from one another of the first metal flange 11 and the second metal flange.Bolt 31 successively protrudes into the first metal flange
11, it is fixed in a hole of dead ring 21 and the second metal flange 12 and by three.Bolt 31 may be provided with multiple and equal
It is even to be distributed on flange.Pipeline section can also according to circumstances be provided with multiple.An insulating sleeve 41 is arranged on each bolt 31.By
It is set between the first metal flange 11 and bolt 31 in insulating sleeve 41.It therefore, can be by the first metal flange 11 and bolt 31
Electrical isolation.Insulator cap 71 is sheathed on the head of bolt 31 and matches with insulating sleeve 41 to form 31 head of receiving bolt
Enclosure space.By dead ring 21, the first metal flange 11 is electrically insulated with the second metal flange 12；By insulating sleeve 41,
First metal flange 11 is electrically insulated with bolt 31；Cooperated by insulating sleeve 41 and insulator cap 71, by the head captured of bolt 31
In the inner, when pipeline casing generates higher induced overvoltage, insulator cap 71 and insulating sleeve 41 can increase bolt 31 and its
Creepage distance and flashover distance between the ipsilateral pipeline section shell in head, to guarantee bolt 31 and the ipsilateral pipeline section shell in its head
Between the reliability that is electrically insulated.Therefore, it by the insulation connection structure of the utility model gas-insulated pipeline, can protect well
The reliability for demonstrate,proving the first metal flange 11 and the second metal flange 12 electrical isolation, guarantees the gas-insulated pipeline energy of the utility model
Enough induced voltages by different location on measurement shell are come quick fault point.For example, left side pipeline section connects transformation in Fig. 1
Device, right side pipeline section connect GIS main equipment.When transformer equipment breaks down and GIS device is normal, due to two pipeline sections in left and right
Electrically insulated from one another, therefore, left side pipeline section can not detect that induced voltage, right side pipeline section remain to detect induced voltage, therefore, can
Quickly judgement is that failure has occurred in transformer.
In order to guarantee the air-tightness of the utility model gas-insulated pipeline, sealing ring 51 is additionally provided between metal flange.
Due to pipeline section processing difficulties, the utility model gas-insulated pipeline is additionally provided with a becket 61, is set to insulation
It (may also set up between dead ring 21 and the first metal flange 11) between ring 21 and the second metal flange 12, and its direction and remote
From an annular groove coaxial with dead ring 21 is each provided on two surfaces of dead ring 21, it is arranged in each annular groove
There is a sealing ring 51.The utility model gas can be facilitated exhausted for placing the becket 61 of sealing ring 51 by manufacture one
The manufacturing of edge pipeline.In addition, one becket 61 respectively can also be set in the two sides of dead ring 21, the two of each becket 61
A surface is each provided with an annular groove coaxial with dead ring 21.
Fig. 2 is the enlarged drawing of part M in Fig. 1.Insulating sleeve 41 may include two parts: an insulation tube 42 and one are absolutely
Edge pad 43.Insulation tube 42 protrudes into the hole of the first metal flange 11.Felt pad 43 be located at the outside of the first metal flange 11 and against
First metal flange 11.Felt pad 43 is sheathed on the head of bolt 31.A dead ring limiting stand 211 is provided on dead ring 21,
One end of insulating sleeve 41 protrudes into the inside of dead ring 21 and is resisted against dead ring limiting stand 211.Felt pad 43 is towards insulation tube
42 one end can be further provided with a felt pad limiting stand 431.One end of insulation tube 42 is protruded into 43 inside of felt pad and is supported
It is against felt pad limiting stand 431.Pass through felt pad limiting stand 431, dead ring limiting stand 211, it is ensured that insulation tube 42 is reliably
First metal flange 11 and bolt 31 are electrically insulated.When installation, insulation tube 21 is placed in the first metal flange 11 and first
Between two metal flanges 12；Secondly, insulation tube 42 is put into the hole of the first metal flange 11, and against dead ring 21；Then,
Felt pad 43 is set on bolt 31；Then, bolt 31 is sequentially passed through into the first metal flange 11, dead ring 21 and the second gold medal
Belong to flange 12 and fixes three；Finally, insulator cap 71 is mounted on felt pad 43.
Insulating sleeve 41 also can be only a part, and shape and the insulation tube 42 and one 43 groups of felt pad of the part close
The shape come is identical.
One end of insulator cap 71 towards insulating sleeve 41 is also provided with a lug boss 711.Lug boss 711 protrudes into felt pad
Inside 43, with guarantee insulator cap 71 and felt pad 43 by the head of bolt 31 it is fully wrapped around including, guarantee insulation reliability.It is convex
Playing portion 711 can be the annular relief coaxial with insulating sleeve 41.Annular relief is detachable by least one clamping structure
Ground is connected to insulating sleeve 41.Clamping structure is that a mutually matched convex annular coaxial with insulating sleeve 41 is stupefied and a ring
Connected in star, convex annular is stupefied to be may be disposed on lug boss 711, and annular groove may be disposed at the inner wall of insulating sleeve 41.In addition, annular
It is convex it is stupefied may also set up in the inner wall of insulating sleeve 41, annular groove may be disposed on lug boss 711.It, can by clamping structure
Guarantee that insulator cap 71 is reliably mounted on insulating sleeve 41.
Although not each embodiment only includes one it should be appreciated that this specification describes according to various embodiments
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solutions in the various embodiments may also be suitably combined for bright book, and forming those skilled in the art can be with
The other embodiments of understanding.
Tool of the one serial detailed description of those listed above only for the possible embodiments of the utility model
Body explanation, they are all without departing from made by the utility model skill spirit not to limit the protection scope of the utility model
Equivalent embodiments or change, such as the combination, segmentation or repetition of feature, should be included in the protection scope of the utility model it
It is interior.
Claims (9)
1. the gas-insulated pipeline with insulation connection structure, shell are made of at least two pipeline sections, each pipeline section tool
There are first metal flange (11) and second metal flange (12), the first metal method of the two neighboring pipeline section
Blue (11) are connected with second metal flange (12) by an insulation connection structure, each insulation connection structure packet
It includes:
One dead ring (21), be located at first metal flange (11) and its abut described second metal flange (12) it
Between；And
At least two bolts (31), each bolt (31) successively protrude into first metal flange (11), the dead ring
(21) and a hole of second metal flange (12) and three is fixed；
It is characterized in that, the insulation connection structure further include:
At least two insulating sleeves (41), each insulating sleeve (41) be sheathed on the bolt (31) and protrude into the hole with
The bolt (31) and first metal flange (11) are insulated；
At least three sealing rings (51), the sealing ring (51) is for sealing the gas-insulated pipeline；
At least one becket (61), be set to first metal flange (11) and second metal flange (12) it
Between, and be each provided on its two surface toward and away from the dead ring (21) one it is coaxial with the dead ring (21)
Annular groove, one be provided in each annular groove in the sealing ring (51)；And
At least two insulator caps (71), be sheathed on the head of the bolt (31) and matched with the insulating sleeve (41) with
Form the enclosure space for accommodating bolt (31) head.
2. gas-insulated pipeline according to claim 1 characterized by comprising
Four sealing rings (51)；And
Two beckets (61), are located at the two sides of the dead ring (21).
3. gas-insulated pipeline according to claim 1, it is characterised in that: be provided with an insulation on the dead ring (21)
Ring limiting stand (211), one end of the insulating sleeve (41) protrude into the dead ring (21) inside and are resisted against the dead ring
Limiting stand (211).
4. gas-insulated pipeline according to claim 1, which is characterized in that the insulating sleeve (41) includes:
One insulation tube (42), protrudes into the hole；And
One felt pad (43), it is external and against first metal flange (11) to be located at first metal flange (11),
The felt pad (43) is sheathed on the head of the bolt (31).
5. gas-insulated pipeline according to claim 4, it is characterised in that: the felt pad (43) is towards the insulation tube
(42) one end is provided with a felt pad limiting stand (431), and the felt pad (43) are protruded into one end of the insulation tube (42)
Inside is simultaneously resisted against the felt pad limiting stand (431).
6. gas-insulated pipeline according to claim 4, it is characterised in that: the insulator cap (71) is towards the insulation sleeve
One end of pipe (41) is provided with a lug boss (711), and it is internal that the lug boss (711) protrudes into the felt pad (43).
7. gas-insulated pipeline according to claim 6, it is characterised in that: the lug boss (711) be and the insulation
The coaxial annular relief of casing (41).
8. gas-insulated pipeline according to claim 7, it is characterised in that: the annular relief is blocked by least one
Binding structure is removably attachable to the insulating sleeve (41).
9. gas-insulated pipeline according to claim 8, it is characterised in that: the clamping structure is mutually matched one
Coaxial convex annular is stupefied with the insulating sleeve (41) and an annular groove, and the convex annular is stupefied to be set to the lug boss
(711) and one in the insulating sleeve (41), the annular groove is set to the lug boss (711) and the insulation sleeve
Manage another in (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920257451.1U CN209516450U (en) | 2019-02-28 | 2019-02-28 | Gas-insulated pipeline with insulation connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920257451.1U CN209516450U (en) | 2019-02-28 | 2019-02-28 | Gas-insulated pipeline with insulation connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209516450U true CN209516450U (en) | 2019-10-18 |
Family
ID=68204905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920257451.1U Active CN209516450U (en) | 2019-02-28 | 2019-02-28 | Gas-insulated pipeline with insulation connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209516450U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164858A (en) * | 2020-09-18 | 2021-01-01 | 中信海洋（舟山）卫星通信有限公司 | Electric isolation mounting structure of shipborne satellite antenna |
-
2019
- 2019-02-28 CN CN201920257451.1U patent/CN209516450U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164858A (en) * | 2020-09-18 | 2021-01-01 | 中信海洋（舟山）卫星通信有限公司 | Electric isolation mounting structure of shipborne satellite antenna |
| CN112164858B (en) * | 2020-09-18 | 2023-03-14 | 中信海洋（舟山）卫星通信有限公司 | Electric isolation mounting structure of shipborne satellite antenna |
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