CN204578028U - A kind of two universal compensation bus unit of expansion joint pressure-balancing type - Google Patents
A kind of two universal compensation bus unit of expansion joint pressure-balancing type Download PDFInfo
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- CN204578028U CN204578028U CN201520172051.2U CN201520172051U CN204578028U CN 204578028 U CN204578028 U CN 204578028U CN 201520172051 U CN201520172051 U CN 201520172051U CN 204578028 U CN204578028 U CN 204578028U
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- expansion joint
- bus unit
- joint pressure
- balancing type
- bus
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Abstract
The utility model provides a kind of two universal compensation bus unit of expansion joint pressure-balancing type, and it is characterized in that, comprise housing, the two ends of housing respectively connect a bellows arrangement.The utility model is satisfied to be compensated radial deformation in GIS gas-insulated metal enclosed switchgear and adjusts alignment error, and can to bus self because the distortion produced of expanding with heat and contract with cold compensate, large and electric property can be kept good to the deformation-compensated amount of radial direction.
Description
Technical field
The utility model relates to a kind of two universal compensation bus unit of expansion joint pressure-balancing type, for high-voltage AC switches.
Background technology
Bus-bar collocation unit is applied in High-Voltage Electrical Appliances system, for compensating bus and equipment because expanding with heat and contract with cold and the important device of change in size that the factor such as alignment error causes.The single bellows of the many employings of current most bus-bar collocation unit is connected with metal shell, is absorbed the cold and hot distortion of bus by self axial deformation.The basis of the reliable operation of this structure is that sufficiently solid bus supports.High-voltage electrical equipment inside fills the insulating gas of certain pressure usually.Due to the effect of gas pressure in bus, bellows by compression swelling, the thrust of formation finally conducts supported on both sides structure.If supporting construction is firm not, the distortion of transfiniting, bellows no longer plays a role, and total will lose efficacy.Along with the increase of bus diameter, support the growth of stressed one-tenth quadratic relationship.When bus diameter is greater than a certain numerical value, the manufacturing cost can bearing the supporting construction of this moment of flexure will be difficult to accept, especially when bus height is higher.
Further, the compensation ability of single bellow-type expansion bus unit unit length is little, therefore requires larger Bellows Length under equivalent environment, thus causes bus-bar collocation unit corrugation length large, and difficult manufacture, cost is high.
Summary of the invention
The purpose of this utility model is to provide a kind of pressure balanced pair of universal compensation bus unit of expansion joint, by the layout rational in infrastructure of bi-bellow and metal shell, all bellows is arranged in metal shell both sides, the bus caused due to reasons such as machining error, ground error, alignment errors when installing with compensating switch equipment or equipment size change, and because of setting of ground, mechanical shock, the bus telescoping amount caused such as to expand with heat and contract with cold when switchgear runs.
In order to achieve the above object, the utility model provides a kind of two universal compensation bus unit of expansion joint pressure-balancing type, and it is characterized in that, comprise housing, the two ends of housing respectively connect a bellows arrangement.
Preferably, the bellows arrangement at the two ends of described housing connects the two ends of double threaded screw respectively.
Preferably, described housing is connected by bolt and sealing ring with bellows arrangement.
Preferably, the top of described bellows arrangement is provided with conductive strips.
Compared with prior art, the beneficial effects of the utility model are:
1, two identical bellows arrangements of the present utility model are arranged on housing two ends respectively, require adjustment shell length, thus under the prerequisite that cost entire change is little, provide enough multi-direction compensation abilitys according to equipment size, deviation and environment etc.
2, bellows of the present utility model is connected with bolt with housing junction, and installs sealing ring additional, to ensure overall air-tightness.
3, the utility model adopts large Tiebar structure to arrange, Absorbable rod self internal force, can not produce active force, ensure that the stability of switchgear entirety, reduce the manufacturing cost of supporting construction fixture and associated devices.
4, metal shell of the present utility model can adopt aluminium sheet to weld or cast aluminium manufacture, also can be the housing of multiple element welding, can be applicable to multiple busbar arrangement.
5, the utility model according to technical requirements such as the length of bus, environment for use and antidetonations, can adjust Bellows Length, to adapt to different environments for use.
6, exemplary configurations form of the present utility model is different from traditional bellow-type expansion in-line nose balance, and based on L shape, Z-shaped, U-shaped, arrangement form is flexible and changeable, and structure adaptability is strong.
Compared with prior art, the beneficial effects of the utility model are:
The utility model utilizes and compensates the radial deformation of bus unit and carry out carrying out its adjacent bus cold and hot deformation-compensated and adjust alignment error, the manufacturing cost that increase along with deformation-compensated amount compensates bus unit can't increase a lot, there is good economy, and electric property can be kept good.Compensate double threaded screw structure Absorbable rod self internal pressure thrust of bus unit, external force can not be produced to housing and supporting construction.This practical overall volume is little, easy for installation, and integrated cost is low.
Accompanying drawing explanation
Fig. 1 is two expansion joint pressure-balancing type universal compensation bus unit structural representations;
Fig. 2 is two expansion joint pressure-balancing type universal compensation bus unit application state figure.
Embodiment
The utility model is illustrated below in conjunction with embodiment.
Embodiment
As shown in Figure 1, for two expansion joint pressure-balancing types universal compensation bus unit structural representation, the described universal compensation bus unit of two expansion joint pressure-balancing types, comprises housing 1, the two ends of housing 1 respectively connect a bellows arrangement 2, and the top of bellows arrangement 2 is provided with conductive strips 4.The bellows arrangement 2 at the two ends of described housing 1 connects the two ends of double threaded screw 3 respectively.Described housing 1 is connected by bolt and sealing ring with bellows arrangement 2.
As shown in Figure 2, be two expansion joint pressure-balancing types universal compensation bus unit structural representation, described two expansion joint pressure-balancing types universal compensation bus unit 6 is located at the outside of a part in Z-shaped compensation arrangement 5.
Claims (4)
1. the two universal compensation bus unit of expansion joint pressure-balancing type, it is characterized in that, comprise housing (1), the two ends of housing (1) respectively connect a bellows arrangement (2).
2. two universal compensation bus unit of expansion joint pressure-balancing type as claimed in claim 1, it is characterized in that, the bellows arrangement (2) at the two ends of described housing (1) connects the two ends of double threaded screw (3) respectively.
3. two universal compensation bus unit of expansion joint pressure-balancing type as claimed in claim 1, it is characterized in that, described housing (1) is connected by bolt and sealing ring with bellows arrangement (2).
4. two universal compensation bus unit of expansion joint pressure-balancing type as claimed in claim 1, it is characterized in that, the top of described bellows arrangement (2) is provided with conductive strips (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520172051.2U CN204578028U (en) | 2015-03-25 | 2015-03-25 | A kind of two universal compensation bus unit of expansion joint pressure-balancing type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520172051.2U CN204578028U (en) | 2015-03-25 | 2015-03-25 | A kind of two universal compensation bus unit of expansion joint pressure-balancing type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204578028U true CN204578028U (en) | 2015-08-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520172051.2U Active CN204578028U (en) | 2015-03-25 | 2015-03-25 | A kind of two universal compensation bus unit of expansion joint pressure-balancing type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204578028U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107785839A (en) * | 2016-08-27 | 2018-03-09 | 江苏德驰电气有限公司 | A kind of high current isolated-phase enclosed bus |
| CN112421534A (en) * | 2020-10-12 | 2021-02-26 | 周福明 | Fastening device capable of compensating expansion amount of cable for power equipment |
-
2015
- 2015-03-25 CN CN201520172051.2U patent/CN204578028U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107785839A (en) * | 2016-08-27 | 2018-03-09 | 江苏德驰电气有限公司 | A kind of high current isolated-phase enclosed bus |
| CN112421534A (en) * | 2020-10-12 | 2021-02-26 | 周福明 | Fastening device capable of compensating expansion amount of cable for power equipment |
| CN112421534B (en) * | 2020-10-12 | 2021-12-14 | 甘肃送变电工程有限公司 | Fastening device capable of compensating expansion amount of cable for power equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |