CN208433724U - Fixed sealing type wall bushing - Google Patents
Fixed sealing type wall bushing Download PDFInfo
- Publication number
- CN208433724U CN208433724U CN201820580851.1U CN201820580851U CN208433724U CN 208433724 U CN208433724 U CN 208433724U CN 201820580851 U CN201820580851 U CN 201820580851U CN 208433724 U CN208433724 U CN 208433724U
- Authority
- CN
- China
- Prior art keywords
- insulation casing
- flange
- shielding ring
- wall bushing
- sealing type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 21
- 238000009413 insulation Methods 0.000 claims abstract description 30
- 238000009422 external insulation Methods 0.000 claims abstract description 26
- 230000005611 electricity Effects 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 abstract description 5
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- 230000015556 catabolic process Effects 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Insulators (AREA)
Abstract
The utility model proposes a kind of fixed sealing type wall bushing, including sleeve body, described sleeve pipe ontology includes interior insulation casing and external insulation casing pipe；The interior insulation casing passes sequentially through and is fixedly connected with first flange, second flange is connected with external insulation casing pipe；The interior insulation casing, first flange, second flange and external insulation casing pipe are integrally formed, and inside forms unified cavity, are equipped with high-tension shielding ring in the cavity of described sleeve pipe ontology；The high-tension shielding ring is fixed between first flange and second flange；By the way that two flanges are arranged between interior insulating sleeve and external insulation casing pipe, the distance for being uniformly arranged adjacent full skirt improves field distribution, has prevented the phenomenon that insulating sleeve climbs electricity, improves dielectric strength for the high-tension shielding ring and the connection of transmission of electricity bus.On the other hand, transmission of electricity bus is connect with being deep into inside sleeve body with high-tension shielding ring, enhances the shielding of insulating sleeve, reduction bus and insulating sleeve degree of oxidation.
Description
Technical field
The utility model relates to electric switch equipment technical field, in particular to a kind of fixed sealing type wall bushing.
Background technique
Insulating sleeve is the Primary Component in electrical equipment, needs to install or connect this in construction or switchgear
Wall bushing supports the busbar of adjacent air cells, and conducting electric current, and the insulation performance of insulating sleeve decides to be connected with bus
Gas-filling cabinet operation security reliability and service life.Existing bus insulating bush using single flange arrangement, also,
For most buses when being mounted on insulating sleeve, the outside of insulating sleeve is arranged in the contact jaw of connecting plate and bus, is very easy to
The connecting pin of bus and insulating sleeve is caused to be oxidized.Therefore, such insulating sleeve through walls is when carrying out Insulation Test, every batch of
There are a small number of bus insulating bush surfaces to climb electric trace, this illustrates that the dielectric strength of such insulating sleeve is little, influences whether
The service life of switchgear.It can improve field distribution therefore, it is necessary to a kind of, improve dielectric strength, reduce bus and insulation sleeve
The fixed sealing type wall bushing of pipe degree of oxidation is to solve the above problems.
Utility model content
The purpose of this utility model aims to solve at least one of the technological deficiency.
For this purpose, a purpose of the utility model is to propose a kind of fixed sealing type wall bushing, to improve field distribution,
Dielectric strength is improved, bus and insulating sleeve degree of oxidation are reduced.
To achieve the goals above, the embodiment of the utility model one side provides fixed sealing type wall bushing, including casing
Ontology, described sleeve pipe ontology include interior insulation casing and external insulation casing pipe；The interior insulation casing, which passes sequentially through, is fixedly connected with
One flange, second flange are connected with external insulation casing pipe；The interior insulation casing, first flange, second flange and external insulation sleeve
Pipe is integrally formed, and inside forms unified cavity, is equipped with high-tension shielding ring in the cavity of described sleeve pipe ontology；The high-tension shielding ring
It is fixed between first flange and second flange；The high-tension shielding ring is connect with transmission of electricity bus.
Preferably, it in the cavity of described sleeve pipe ontology, and sets up defences jacket pipe in high-tension shielding ring outer cover.
Preferably, described sleeve pipe ontology is poured using epoxide resin material.
Preferably, the axial intermediate radial of the external insulation casing pipe is cast with insulation board, and the insulation board center offers
Through-hole, the transmission of electricity bus pass through through-hole be connected with high-tension shielding ring.
Preferably, the interior insulation casing and the leading portion of external insulation casing pipe and the outer wall of back segment are cast with insulated umbrella, phase
1cm is divided between adjacent full skirt.
Further, the edge of the insulated umbrella is rolled downwards.
Further, the exposed part other than insulation board of the transmission of electricity bus, passes through anti-watertight between external insulation casing pipe
Sealing sealing.
According to the fixed sealing type wall bushing of the offer of the utility model embodiment, by interior insulating sleeve and external insulation sleeve
Two flanges are set between pipe, using the fixed high-tension shielding ring of two flanges, has prevented the phenomenon that insulating sleeve climbs electricity, has uniformly set
The distance for setting adjacent full skirt improves field distribution, improves dielectric strength.On the other hand, transmission of electricity and is deep into sleeve body at bus
Inside is connect with high-tension shielding ring, enhances the shielding of insulating sleeve, reduces bus and insulating sleeve degree of oxidation.
The additional aspect of the utility model and advantage will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 is a kind of main view of fixed sealing type wall bushing provided by the embodiment of the utility model；
Fig. 2 is a kind of bosom axial direction section view signal of fixed sealing type wall bushing provided by the embodiment of the utility model
Figure；
Fig. 3 is a kind of right view of fixed sealing type wall bushing provided by the embodiment of the utility model；
In figure: 101, interior insulation casing；102, external insulation casing pipe；2, first flange；3, second flange；4, high-tension shielding
Ring；5, low pressure shading ring；6, insulation board；7, through-hole；8 transmission of electricity buses.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
As shown in Figure 1, the fixed sealing type wall bushing of the offer of the utility model embodiment, including sleeve body, casing sheet
Body includes interior insulation casing 101 and external insulation casing pipe 102；Interior insulation casing 101, which passes sequentially through, is fixedly connected with first flange 2,
Two flanges 3 are connected with external insulation casing pipe 102；Interior insulation casing 101, first flange 2, second flange 3 and external insulation casing pipe 102
It is integrally formed, inside forms unified cavity, is equipped with high-tension shielding ring 4 in the cavity of sleeve body；The fixation of high-tension shielding ring 4 is set
It sets between first flange 2 and second flange 3；High-tension shielding ring 4 is connect with transmission of electricity bus.First flange 2 and second flange
3 close connections, improve the phenomenon that high voltage electric field accumulates in sleeve body end by adding flange.
As shown in Figure 2, it should be noted that high-tension shielding ring 4 is in mesh cylinder, and low voltage screen is additionally provided in sleeve body
Cover ring 5, wherein low pressure shading ring 5 is also in mesh cylinder, in the insulating sleeve ontology, is located at insulating sleeve flange section (the
Part between one flange 2 and second flange 3) nearly external insulation casing pipe 102 outer wall at；High-tension shielding ring 4 and earth shield ring
Concentric to be arranged, the cylinder mesh wall spacing of high-tension shielding ring 4 and low pressure shading ring 5 is 25mm or more；High-tension shielding ring 4 when installation
It is set in outside transmission of electricity bus and connects with transmission of electricity bus, low pressure shading ring 5 is grounded.
In one embodiment of the utility model, in the cavity of sleeve body, and set up defences in 4 outer cover of high-tension shielding ring
Jacket pipe, water string penetrate through the cavity of entire sleeve body, prevent from causing transmission of electricity female since sleeve body centre is cracked
Line touches water.Sleeve body is poured using epoxide resin material.Further, transmit electricity the exposed portion other than insulation board 6 of bus
Point, it is sealed between external insulation casing pipe 102 by waterproof gasket cement.
As shown in figure 3, the axial intermediate radial of external insulation casing pipe 102 is cast with insulation board 6,6 center of insulation board is offered
Through-hole 7, transmission of electricity bus passes through the cavity that protrudes into inside sleeve body of through-hole 7 and is connected with high-tension shielding ring 4.Interior insulation casing
101 and the leading portion of external insulation casing pipe 102 and the outer wall of back segment be cast with insulated umbrella, between adjacent full skirt between be divided into 1cm.With
Reach equilibrium electric field distribution, increases the purpose of insulation distance.
Further, the edge of insulated umbrella is rolled downwards.The field strength in epoxy and in air is optimized, insulating properties is improved
Energy.Usual maximum field strength occurs in the end of high pressure and ground, so the end shape on high pressure and ground can greatly affect generation
The size of field strength.
When the utility model is used, the high pressure of conductor is introduced high-tension shielding ring by high-voltage connection terminal, by exhausted inside
Two flanges are set between edge casing and external insulation casing pipe, using fixation hole is arranged on two flanges, effectively by high-tension shielding
Ring is fixed between two flanges convenient for quickly positioning bus in narrow space, simultaneously because setting flange, when transmission of electricity bus
Will transmission of electricity High voltage output to high-tension shielding ring when, high-tension shielding ring effectively can effectively conduct the end breakdown voltage of generation
To flange, the phenomenon for causing insulating sleeve to be climbed electricity due to anode-cathode voltage accumulation is avoided；Be uniformly arranged adjacent full skirt away from
Electric phenomenon is climbed from improving field distribution, having prevented insulating sleeve, improves dielectric strength.Low pressure shading ring be directly grounded or
The mounting plate connect and ground of low pressure shading ring and wall bushing only has epoxy resin between high-tension shielding ring and low pressure shading ring
As medium, the compressive resistance of epoxy resin is far longer than epoxy along the breakdown strength of the air in face, by widening high-tension shielding
The threshold value of ring and low pressure shading ring improves field distribution, reduces breakdown voltage, effectively extend making for wall bushing
Use the service life.On the other hand, transmission of electricity bus is connect with sleeve body inside is deep into high-tension shielding ring, enhances insulating sleeve
Shielding reduces bus and insulating sleeve degree of oxidation.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are not departing from the utility model
Principle and objective in the case where above-described embodiment can be changed in the scope of the utility model, modify, replace and
Modification.The scope of the utility model is by appended claims and its equivalent limits.
Claims (7)
1. a kind of fixed sealing type wall bushing, which is characterized in that including sleeve body, described sleeve pipe ontology include interior insulation casing and
External insulation casing pipe；The interior insulation casing passes sequentially through and is fixedly connected with first flange, second flange is connected with external insulation casing pipe；
The interior insulation casing, first flange, second flange and external insulation casing pipe are integrally formed, and inside forms unified cavity, the set
High-tension shielding ring is equipped in the cavity of tube body；The high-tension shielding ring be fixed at first flange and second flange it
Between；The high-tension shielding ring is connect with transmission of electricity bus.
2. fixed sealing type wall bushing according to claim 1, which is characterized in that in the cavity of described sleeve pipe ontology, and
High-tension shielding ring outer cover is set up defences jacket pipe.
3. fixed sealing type wall bushing according to claim 1, which is characterized in that described sleeve pipe ontology uses epoxy resin material
Material is poured.
4. fixed sealing type wall bushing according to claim 1, which is characterized in that the axial intermediate diameter of the external insulation casing pipe
To insulation board, the through-hole that the insulation board center offers is cast with, the transmission of electricity bus passes through through-hole and high-tension shielding ring phase
Connection.
5. fixed sealing type wall bushing according to claim 1, which is characterized in that the interior insulation casing and external insulation casing pipe
Leading portion and the outer wall of back segment be cast with insulated umbrella, between adjacent full skirt between be divided into 1cm.
6. fixed sealing type wall bushing according to claim 5, which is characterized in that roll downwards at the edge of the insulated umbrella.
7. fixed sealing type wall bushing according to claim 4, which is characterized in that the transmission of electricity bus it is exposed insulation board with
Outer part is sealed between external insulation casing pipe by waterproof gasket cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820580851.1U CN208433724U (en) | 2018-04-23 | 2018-04-23 | Fixed sealing type wall bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820580851.1U CN208433724U (en) | 2018-04-23 | 2018-04-23 | Fixed sealing type wall bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208433724U true CN208433724U (en) | 2019-01-25 |
Family
ID=65101802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820580851.1U Expired - Fee Related CN208433724U (en) | 2018-04-23 | 2018-04-23 | Fixed sealing type wall bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208433724U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110137879A (en) * | 2019-05-14 | 2019-08-16 | 云南电网有限责任公司电力科学研究院 | A kind of wall bushing |
-
2018
- 2018-04-23 CN CN201820580851.1U patent/CN208433724U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110137879A (en) * | 2019-05-14 | 2019-08-16 | 云南电网有限责任公司电力科学研究院 | A kind of wall bushing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |