CN209592892U - Contact tube heat dissipation type wall bushing - Google Patents
Contact tube heat dissipation type wall bushing Download PDFInfo
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- CN209592892U CN209592892U CN201920648197.8U CN201920648197U CN209592892U CN 209592892 U CN209592892 U CN 209592892U CN 201920648197 U CN201920648197 U CN 201920648197U CN 209592892 U CN209592892 U CN 209592892U
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- contact tube
- flange
- walls
- hole
- capacitor core
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Abstract
The utility model relates to wall bushing fields, specifically a kind of contact tube heat dissipation type wall bushing, including contact tube, capacitor core, composite insulation outer coat and flange through walls, contact tube and capacitor core are all provided in composite insulation outer coat, and capacitor core is set on the outside of contact tube, first through hole is equipped at the contact tube both ends, and the exocoel between capacitor core and composite insulation outer coat is communicated by the first through hole with the inner cavity of contact tube, flange through walls is set in the middle part of composite insulation outer coat, and the flange through walls is equipped with the second through-hole and communicates the exocoel of the flange two sides through walls.The utility model allow SF6 gas enter contact tube in by heat transfer out come, reduce casing bulk temperature, improve the service life of casing.
Description
Technical field
The utility model relates to wall bushing field, specifically a kind of contact tube heat dissipation type wall bushing.
Background technique
The structure of contact tube current-carrying formula wall bushing is as shown in Figure 1, include composite insulation outer coat, contact tube, capacitor core
Etc. structures, wherein contact tube will carry high current, be wound on the outside of contact tube by multi-layer cable paper as current-carrying conductor in operation
With capacitor core made of aluminium foil coiling, but since capacitor core shaft insulation is to length, radial thick, easy heat radiation, does not lead to contact tube
Heat dissipation is difficult, especially the casing of voltage levels.Although in the cavity between capacitor core and composite insulation outer coat filled with
SF6 gas can play certain heat spreading function, but since contact tube is enclosed construction, can not be by SF6 gas in contact tube
Portion's heat dissipation causes sleeve body temperature high, and longtime running easily causes insulation ag(e)ing, reduces product service life.
Utility model content
The purpose of this utility model is to provide a kind of contact tube heat dissipation type wall bushings, enter SF6 gas and lead
Heat is transferred out in fulgurite, casing bulk temperature is reduced, improves the service life of casing.
The purpose of this utility model is achieved through the following technical solutions:
A kind of contact tube heat dissipation type wall bushing, including contact tube, capacitor core, composite insulation outer coat and flange through walls,
Contact tube and capacitor core are all provided in composite insulation outer coat, and capacitor core is set on the outside of contact tube, in the contact tube two
End is equipped with first through hole, and the exocoel between capacitor core and composite insulation outer coat passes through the first through hole and contact tube
Inner cavity communicates, flange through walls be set to composite insulation outer coat in the middle part of, and the flange through walls be equipped with the second through-hole make it is described through walls
The exocoel of flange two sides communicates.
The flange both ends through walls are equipped with flange sidewalls and offset with the contact tube, and the is equipped on the flange sidewalls
Two through-holes.
The first through hole quantity of the contact tube outdoor end is more than the first through hole quantity at the indoor end of the contact tube.
The advantages of the utility model and good effect are as follows:
1, the utility model contact tube both ends be equipped with first through hole make it is outer between capacitor core and composite insulation outer coat
Chamber is communicated with conductive tube cavity, is entered SF6 gas in contact tube and is transferred out by heat, reduces bushing temperature.
2, the utility model is equipped with flange through walls, and is equipped with the second through-hole on the flange sidewalls of flange through walls and realized
Gas can effectively increase gas circulation, and SF6 gas is made to realize circulation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model,
Fig. 2 is enlarged drawing at the A in Fig. 1,
Fig. 3 is enlarged drawing at the B in Fig. 1.
Wherein, 1 is contact tube, and 2 be exocoel, and 3 be composite insulation outer coat, and 4 be flange through walls, and 401 be flange sidewalls, and 5 are
Capacitor core, 6 be first through hole, and 7 be the second through-hole, and 8 be inner cavity.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in Figures 1 to 3, the utility model includes contact tube 1, capacitor core 5, composite insulation outer coat 3 and flange through walls
4, contact tube 1 and capacitor core 5 are set in composite insulation outer coat 3, and capacitor core 5 is set to 1 outside of contact tube, in capacitance core
It is equipped with exocoel 2 between body 5 and composite insulation outer coat 3, inner cavity 8 is equipped in the contact tube 1, is set at 1 both ends of contact tube
There is the first through hole 6 for being connected to the exocoel 2 and inner cavity 8, flange 4 through walls is set in the middle part of composite insulation outer coat 3, and as shown in figure 3,
4 both ends of flange through walls are equipped with flange sidewalls 401 and offset with the contact tube 1, and the is equipped on the flange sidewalls 401
Two through-holes 7 communicate the exocoel 2 of 4 two sides of flange through walls, and SF6 gas is filled in the inner cavity 8 and exocoel 2.
In the present embodiment, 3 material of composite insulation outer coat be silicon rubber, the capacitor core 5 be multi-layer cable paper and
Aluminium foil coiling forms, and 1 material of contact tube is copper pipe.
To promote gas circulation, 6 quantity of first through hole of 1 outdoor end of contact tube is more than the indoor end of the contact tube 1
6 quantity of first through hole, in the present embodiment, the outdoor end of the contact tube 1 is circumferentially equipped with 7 first through hole 6, institute
The indoor end of contact tube 1 is circumferentially equipped with 5 first through hole 6.
The working principle of the utility model are as follows:
Contact tube current-carrying formula wall bushing in the prior art, since contact tube 1 is enclosed construction, SF6 gas can only be
It circulates in exocoel 2 between capacitor core 5 and composite insulation outer coat 3, as shown in Figures 1 to 3, the utility model is at 1 liang of contact tube
End opens up first through hole 6, so that the inner cavity 8 inside contact tube 1 is communicated with the exocoel 2, SF6 gas can enter contact tube
Heat is transferred out in 1 inner cavity 8, and is equipped with the second through-hole 7 on the flange sidewalls 401 of flange 4 through walls and realized gas,
Gas circulation can effectively be increased, and the SF6 gas in the exocoel 2 and inner cavity 8 is made to realize circulation, so that thermal diffusivity
It can greatly improve, by actual test, the bulk temperature of the utility model casing reduces about 15K (Fahrenheit temperature), transports for a long time
Under row operating condition, the service life of casing is improved.
Claims (3)
1. a kind of contact tube heat dissipation type wall bushing, it is characterised in that: including contact tube (1), capacitor core (5), compound inslation
Housing (3) and flange through walls (4), contact tube (1) and capacitor core (5) are set in composite insulation outer coat (3), and capacitor core
(5) be set to contact tube (1) on the outside of, be equipped with first through hole (6) at the contact tube (1) both ends, and capacitor core (5) with it is compound
Exocoel (2) between insulating coating (3) is communicated by the first through hole (6) with the inner cavity (8) of contact tube (1), flange through walls
(4) it is set in the middle part of composite insulation outer coat (3), and the flange through walls (4) makes the flange through walls equipped with the second through-hole (7)
(4) exocoel (2) of two sides communicates.
2. contact tube heat dissipation type wall bushing according to claim 1, it is characterised in that: flange (4) both ends through walls
Inside is equipped with flange sidewalls (401) and offsets with the contact tube (1), and the second through-hole is equipped on the flange sidewalls (401)
(7)。
3. contact tube heat dissipation type wall bushing according to claim 1, it is characterised in that: contact tube (1) outdoor end
First through hole (6) quantity be more than the contact tube (1) indoor end first through hole (6) quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920648197.8U CN209592892U (en) | 2019-05-08 | 2019-05-08 | Contact tube heat dissipation type wall bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920648197.8U CN209592892U (en) | 2019-05-08 | 2019-05-08 | Contact tube heat dissipation type wall bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209592892U true CN209592892U (en) | 2019-11-05 |
Family
ID=68347866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920648197.8U Active CN209592892U (en) | 2019-05-08 | 2019-05-08 | Contact tube heat dissipation type wall bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209592892U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023045055A1 (en) * | 2021-09-22 | 2023-03-30 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | 800 kv flexible direct-current wall bushing |
-
2019
- 2019-05-08 CN CN201920648197.8U patent/CN209592892U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023045055A1 (en) * | 2021-09-22 | 2023-03-30 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | 800 kv flexible direct-current wall bushing |
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| GR01 | Patent grant |