CN207039138U - A kind of shell compensation device - Google Patents
A kind of shell compensation device Download PDFInfo
- Publication number
- CN207039138U CN207039138U CN201720782753.1U CN201720782753U CN207039138U CN 207039138 U CN207039138 U CN 207039138U CN 201720782753 U CN201720782753 U CN 201720782753U CN 207039138 U CN207039138 U CN 207039138U
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- CN
- China
- Prior art keywords
- shell
- compensation device
- housing
- inwall
- wall
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Abstract
A kind of shell compensation device, for the middle pressure of inner inflatable and the supplement of high voltage electric equipment, the shell compensation device includes the first shell, second housing, the 3rd shell and the 4th shell being sequentially arranged on axle, wherein, first shell and the 3rd shell are fixedly connected, second housing and the 4th shell are fixedly connected, and ensure that the stress between the first shell and the 3rd shell, between second housing and the 4th shell is offset；The inwall of the second housing can move axially in reciprocal fashion in the outer wall of the first shell and the outer wall of the 3rd shell, and the inwall of the 3rd shell can move axially in reciprocal fashion on the outer wall of the 4th shell.
Description
【Technical field】
Middle pressure and field of high-voltage technology are the utility model is related to, is set more particularly, to the middle pressure and high-voltage electrical apparatus of inner inflatable
Standby shell compensation device.
【Background technology】
Shell and its attachment structure are it is well known that they are protection electrical power trans mission/distribution systems returns in the electric field of middle high-pressure
The chief component on road.As the example of electrical equipment, the task of bus be resistant to for a long time certain nominal pressure, voltage and
Electric current, it is the important component of power network so as to realize effective transfer of the electric energy in transmission line of electricity.
Particularly, for the ease of the present invention, " shell compensation device " especially is explained here, due to current medium-high voltage power
Gas equipment generally uses metal enclosed gas insulated apparatus, because of the influence factors such as air pressure inside, assembling, cold and hot deformation, shell meeting
By larger mechanical load, and these mechanical loads can be eliminated or weaken by increasing shell compensation device in position,
So as to increase the bearing capacity of shell, the reliability of cage connection is improved.More detailed description is, shell compensation device typically by
The shell that can be deformed realizes that, when shell needs to carry out dimension compensation, shell can be by appropriate eliminating deformation because of size
The additional machinery load for deforming and introducing.
Particularly, the general arrangement length of inflatable, high current pipeline bus used for transmission line reaches thousands of rice at present, its because
It is often very big for shell axial direction length deformations caused by factor such as variation of ambient temperature, internal through-flow heating, rigging errors.
Particularly, by provide following technical schemes by more satisfactory improve in the electric equipment of middle high-pressure shell it
Between connection status, increase shell to the deformation-compensated ability caused by the factors such as assembling, temperature rise.The technical scheme causes shell
Connection reliability is significantly ensured, and in the process of running larger blind flange force will not be caused to act on, and is reduced middle and high
Requirement of the voltage electrical equipment to installation environment particularly underlying strength.The technical scheme is simple in construction simultaneously and cost is very low.
【The content of the invention】
The utility model provides a kind of shell compensation device, and specific effect is to improve in transmission of electricity and distribution system such as
Company between the electrical appliance enclosure such as bus, disconnecting switch, earthed switch, breaker, voltage or current transformer and arrester
Reliability is connect, improves the stressing conditions of shell.Particularly, the present invention is more beneficial for inflatable, middle pressure, high pressure, high current transmission of electricity
Shell mechanism in circuit pipeline bus.
The utility model uses following technical scheme：
A kind of shell compensation device, including be sequentially arranged on axle the first shell, second housing, the 3rd shell, the 4th
Shell, wherein, the first shell and the 3rd shell are fixedly connected, and second housing and the 4th shell are fixedly connected, and ensure the first shell
And the 3rd between shell, the stress between second housing and the 4th shell is offset；The inwall of the second housing can be first
The outer wall of the outer wall of shell and the 3rd shell moves axially in reciprocal fashion, and the inwall of the 3rd shell can be on the outer wall of the 4th shell
Move axially in reciprocal fashion.
The first shell and the 3rd shell being synchronized with the movement vertically have different internal diameters, second to be synchronized with the movement vertically
Shell and the 4th shell have different internal diameters.
The first described shell and the equivalent diameter of the 3rd shell meet relation：Larger-diameter square is equal to small diameter
Square twice；Described second housing and the internal diameter of the 4th shell meet relation：Larger-diameter square is equal to small diameter
Square twice.
The first described shell and the equivalent redius of the 3rd shell meet relation：Inwall is vertically by caused by gas pressure
Axial force is equivalent to a certain size diametral plane vertically, by onesize air pressure when caused power.
The link position of adjacent shells is provided with sealing ring and guide ring, and guide ring is located at sealing ring both sides respectively, to protect
Ensure that air seal does not leak during Relative sliding between barrier shell.
Two shells being fastenedly connected are connected by fastener, and connected mode includes but is not limited to welding, bolt, riveting.
Described fastener is that plate or shaft-like structure, material are not limited to metal material.
The housing is not limited to metal material.
The axle is provided at both ends with limited step.
Described limited step is bolt and nut.
Compared with prior art, the utility model at least has the advantages that：In technical solutions of the utility model,
First shell and the 3rd shell are fixedly connected, and second housing and the 4th shell are fixedly connected, to ensure outside the first shell and the 3rd
Stress between shell, between second housing and the 4th shell is offset；When the left end stress of the first shell, the stress of the first shell
The 3rd shell can be transmitted to, when the right-hand member stress of the 4th shell, the stress of the 4th shell can be transmitted to second housing.
On the basis of this, when rigging error and temperature rise occur, when the first shell and the 4th shell both ends stress of different sizes, i.e., outside first
During the bus shell motion that shell and the 4th shell compensate with the need, it can slide, realize relatively between shell of the present utility model
Compensation.When the utility model inner inflatable, the end air pressure stress between the first shell and the 4th shell approximate can be offset,
End air pressure stress between second housing and the 3rd shell approximate can be offset.
【Brief description of the drawings】
Fig. 1 is detailed construction schematic diagram of the present utility model.
【Embodiment】
The utility model provides a kind of shell compensation device, it is possible to increase the electric device housings connection of middle high-pressure is reliable
Property, improve the adaptive capacity to environment of shell.The function compensates component by shell described herein and its structure type is realized.Tool
Body effect is to improve such as bus, disconnecting switch, earthed switch, breaker, voltage or electric current in transmission of electricity and distribution system
Connection reliability between the electrical appliance enclosure such as transformer and arrester, improve the stressing conditions of shell.Particularly, it is of the invention
The shell mechanism being more beneficial in inflatable, middle pressure, high pressure, high current pipeline bus used for transmission line.
Referring to Fig. 1, the utility model provides a kind of shell collocation structure, including first be connected in turn on axle 8
Shell 1, second housing 2, the 3rd shell 3 and the 4th shell 4, wherein, axle 8 should have preferable rigidity, to ensure four shells
Can and it be only capable of moving back and forth along axle 8.It is divided into two groups between four metal shells, every group includes two shells, between two shells
It is connected at flange position by metallic plate, to realize the geo-stationary between two shells.
The left end of first shell 1 is connected with the bus shell that needs compensate, and the right-hand member of the first shell 1 is located at second housing 2
Left end inside, the right-hand member hull outside of the first shell 1 and the case inside of the left end of second housing 2 set guide ring 5 and sealing
Circle 6, ensure adjacent shells between Relative sliding when ensure air seal do not leak.When the left end stress of the first shell 1, first
Relative it can be slided between shell 1 and second housing 2.On the outside of the left end flange of first shell 1 and outside the right flange of the 3rd shell 3
Side is connected by plate, and when the left end stress of the first shell, the stress of the first shell can be transmitted to the 3rd shell by plate.More
Specifically, the first shell 1 and the 3rd shell 3 position geo-stationary vertically, the inwall of second housing 2 can be in the first shell
Moved axially in reciprocal fashion on 1 outer wall.Meanwhile the inwall of second housing 2 can be reciprocal vertically on the outer wall of the 3rd shell 3
Motion, the inwall of the 3rd shell 3 can move axially in reciprocal fashion on the outer wall of the 4th shell 4.
The right-hand member of 4th shell 4 is connected with the bus shell that needs compensate, and the left end of the 4th shell 4 is located at the 3rd shell 3
Right-hand member inside, the left end hull outside of the 4th shell 4 and the case inside of the right-hand member of the 3rd shell 3 set guide ring 6 and sealing
Circle 6.When the right-hand member stress of the 4th shell 4, relative can be slided between the 3rd shell 3 and the 4th shell 4.The right side of 4th shell 4
It is connected on the outside of end flanges with the outside of the left side flange of second housing 2 by plate, when the right-hand member stress of the 4th shell 4, outside the 4th
The stress of shell 4 can be transmitted to second housing 2 by plate.
It is fixedly connected between first shell 1 and the 3rd shell 3, between second housing 2 and the 4th shell 4 by plate 7.
Fixed form can be by modes such as welding, bolt, rivetings, between the first shell 1 of guarantee and the 3rd shell 3, second housing 2
Be fixedly connected between the 4th shell 4, to ensure between the first shell 1 and the 3rd shell 3, the shell 4 of second housing 2 and the 4th it
Between stress can offset.
The right-hand member of second housing 2 is located inside the left end of the 3rd shell 3, the right-hand member hull outside and the 3rd of second housing 2
The case inside of the left end of shell 3 sets guide ring 5 and sealing ring 6.Relative it can be slided between first shell 1 and second housing 2.
First shell 1, second housing 2, the 3rd shell 3, the 4th shell 4 flange face on perforate, and pass through axle, four are outer
Shell can slide along axle is relative, realize the axial error to two end housings and compensation of expanding with heat and contract with cold.
With different inside diameters (i.e. internal diameter), two shells between two shells with synchronization axially movable
Best equivalence diameter meet：Larger-diameter square of be equal to small diameter square twice, but the relation of diameter therebetween
It is not limited to above-mentioned relation formula.The equivalent redius of two shells meets：Inwall is vertically by axial force caused by gas pressure
Be equivalent to a certain size diametral plane vertically, by onesize air pressure when caused power.
Adjacent housing exterior flange has pilot hole, and shell pilot hole passes through same group of connecting shaft.
Described axle both ends have limited step, and a feasible citing is that the step can be, but not limited to by screw rod spiral shell
Mother, which coordinates, to be realized.
Described shell, metallic plate, axis of guide etc. can be not limited to metal material.Metallic plate can be but be not limited to plate
Shape, a kind of feasible citing are that metallic plate can be metal shape shaft.
Claims (9)
- A kind of 1. shell compensation device, for the middle pressure of inner inflatable and the supplement of high voltage electric equipment, it is characterised in that：This is outer Shell compensation device includes being sequentially arranged at the first shell (1) on axle (8), second housing (2), outside the 3rd shell (3) and the 4th Shell (4), it is necessary to compensation bus shell be connected on the first shell and the 4th shell and be coaxially disposed, wherein, outside first Shell (1) is fixedly connected with the 3rd shell (3), and second housing (2) is fixedly connected with the 4th shell (4), ensure the first shell (1) and Stress between 3rd shell (3), between second housing (2) and the 4th shell (4) is offset；The inwall of the second housing (2) It can be moved axially in reciprocal fashion in the outer wall of the first shell (1) and the outer wall of the 3rd shell (3), the inwall of the 3rd shell (3) can To be moved axially in reciprocal fashion on the outer wall of the 4th shell (4).
- A kind of 2. shell compensation device according to claim 1, it is characterised in that：The first shell being synchronized with the movement vertically There is different internal diameters with the 3rd shell, the second housing and the 4th shell being synchronized with the movement vertically have different internal diameters.
- A kind of 3. shell compensation device according to claim 2, it is characterised in that：Described the first shell and the 3rd shell Equivalent diameter meet relation：Larger-diameter square of be equal to small diameter square twice；Described second housing and the 4th The internal diameter of shell meets relation：Larger-diameter square of be equal to small diameter square twice.
- A kind of 4. shell compensation device according to claim 2, it is characterised in that：Described the first shell and the 3rd shell Equivalent redius meet relation：Inwall is equivalent to a certain size diameter vertically by axial force caused by gas pressure vertically Plane, by onesize air pressure when caused power.
- A kind of 5. shell compensation device according to claim 1, it is characterised in that：The link position of adjacent shells is provided with Sealing ring (6) and guide ring (5), guide ring (5) are located at sealing ring (6) both sides respectively, during ensureing Relative sliding between shell Ensure that air seal does not leak.
- A kind of 6. shell compensation device according to claim 1, it is characterised in that：Two shells being fastenedly connected pass through tight Firmware connects, and connected mode includes but is not limited to welding, bolt, riveting.
- A kind of 7. shell compensation device according to claim 6, it is characterised in that：Described fastener is plate or shaft-like knot Structure, material are not limited to metal material.
- A kind of 8. shell compensation device according to claim 1, it is characterised in that：The axle (8) is provided at both ends with limit Position step.
- A kind of 9. shell compensation device according to claim 8, it is characterised in that：Described limited step is screw rod spiral shell It is female.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720782753.1U CN207039138U (en) | 2017-06-30 | 2017-06-30 | A kind of shell compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720782753.1U CN207039138U (en) | 2017-06-30 | 2017-06-30 | A kind of shell compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207039138U true CN207039138U (en) | 2018-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720782753.1U Active CN207039138U (en) | 2017-06-30 | 2017-06-30 | A kind of shell compensation device |
Country Status (1)
| Country | Link |
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| CN (1) | CN207039138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898790A (en) * | 2020-06-22 | 2022-01-07 | 中国航发商用航空发动机有限责任公司 | Pipe support and thermal deformation compensation device for same |
-
2017
- 2017-06-30 CN CN201720782753.1U patent/CN207039138U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898790A (en) * | 2020-06-22 | 2022-01-07 | 中国航发商用航空发动机有限责任公司 | Pipe support and thermal deformation compensation device for same |
| CN113898790B (en) * | 2020-06-22 | 2023-03-14 | 中国航发商用航空发动机有限责任公司 | Pipe support and thermal deformation compensation device for same |
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