CN113488931A - Gas insulated transmission line high-fall shaft mounting structure - Google Patents
Gas insulated transmission line high-fall shaft mounting structure Download PDFInfo
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- CN113488931A CN113488931A CN202110791530.2A CN202110791530A CN113488931A CN 113488931 A CN113488931 A CN 113488931A CN 202110791530 A CN202110791530 A CN 202110791530A CN 113488931 A CN113488931 A CN 113488931A
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- vertical
- unit
- equipment
- transmission line
- gas insulated
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0462—Tubings, i.e. having a closed section
- H02G3/0468—Corrugated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/247—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated pneumatically actuated
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
The invention relates to a high-fall shaft mounting structure of a gas insulated transmission line, which comprises a vertical equipment adjusting unit, wherein the vertical equipment adjusting unit is connected with a vertical equipment unit of the gas insulated transmission line and can adjust the horizontal height of the vertical equipment unit. According to the high-drop vertical shaft installation structure of the gas insulation power transmission line, the horizontal height of the vertical equipment unit is adjusted by additionally arranging the vertical equipment adjusting unit, so that the vertical equipment unit can be aligned with the fixed support during installation, the existing corrugated pipe is replaced, the operation is easier, the size of the vertical equipment unit is not increased due to the replacement of the corrugated pipe, and the phase distance of GI L equipment, the distance of GI L equipment from a vertical shaft pipe gallery and the size of an inner cavity of the vertical shaft pipe gallery are prevented from being enlarged.
Description
Technical Field
The invention relates to the technical field of GIL equipment, in particular to a high-fall vertical shaft mounting structure of a gas insulated transmission line.
Background
A gas insulated transmission line (GIL) is high-voltage and high-current power transmission equipment which adopts gas insulation and is coaxially arranged by a shell and a conductor, and has the advantages of no influence of adverse weather, special terrain and other environmental factors, effective utilization of space resources, reduction of electromagnetic influence, increase of current-carrying capacity, low failure rate, convenience in maintenance and the like compared with the traditional overhead line or transmission cable.
The GIL equipment is usually applied to a high-fall vertical shaft or an inclined shaft due to higher manufacturing cost, and when the GIL equipment is applied, errors are easy to occur during equipment processing due to larger length of the GIL equipment, so that the situation that the vertical section is difficult to align with a fixed support during installation is caused; on the other hand, because GIL equipment needs to dock through the ring flange, therefore the bellows is usually the size when connecting and is bigger than GIL equipment just can be connected with the ring flange, because the increase of the size of bellows, the size of GIL equipment itself is also bigger, leads to the looks interval of GIL equipment, the distance of GIL equipment apart from the shaft piping lane and the size of shaft piping lane inner chamber all to need to enlarge, leads to the increase of construction volume, the increase of civil engineering cost.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the technical problems that the arrangement mode of adopting the corrugated pipe to absorb the installation error caused by the machining error has certain limitation in the prior art and the technical problems of the increase of construction amount and the increase of civil engineering cost caused by the larger size of the corrugated pipe, and provide the gas insulated transmission line high-fall vertical shaft installation structure which can independently adjust the horizontal height of the GIL equipment during installation and does not change the size of the GIL equipment.
In order to solve the technical problem, the invention provides a high-fall shaft installation structure of a gas insulated transmission line, which comprises a vertical equipment adjusting unit, wherein the vertical equipment adjusting unit is connected with a vertical equipment unit of the gas insulated transmission line and can adjust the horizontal height of the vertical equipment unit.
In one embodiment of the invention, when the vertical equipment adjusting unit is in the first working state, the vertical equipment adjusting unit is driven and supported to move vertically so as to adjust the horizontal height of the vertical equipment adjusting unit; when the vertical equipment adjusting unit is in the second working state, the vertical equipment unit can move in the vertical direction automatically.
In one embodiment of the invention, the vertical equipment adjusting unit comprises a hydraulic cylinder, and a piston rod of the hydraulic cylinder is connected with the vertical equipment unit; when hydraulic oil is injected into the hydraulic cylinder, the hydraulic cylinder operates in the first working state; and after the hydraulic pressure in the hydraulic cylinder is removed, the hydraulic cylinder operates in the second working state.
In an embodiment of the present invention, the vertical device adjusting unit further includes an oil pump, the hydraulic cylinder is connected to the oil pump, and hydraulic oil is injected into the hydraulic cylinder through the oil pump.
In one embodiment of the invention, the hydraulic cylinders comprise two hydraulic cylinders, and the two hydraulic cylinders are respectively arranged on two sides of the vertical equipment unit.
In one embodiment of the invention, the vertical equipment adjusting unit comprises a cylinder, and a piston rod of the cylinder is connected with the vertical equipment unit; when compressed air is injected into the air cylinder, the air cylinder operates in the first working state; and after the compressed air in the air cylinder is discharged, the air cylinder operates in the second working state.
In one embodiment of the invention, the vertical equipment adjusting unit is arranged at a preset height through a supporting mechanism, the supporting mechanism comprises a vertical support, the bottom of the vertical support is connected with the ground, and the vertical equipment adjusting unit is arranged at the top of the vertical support; or the supporting mechanism comprises a transverse support, one end of the transverse support is connected with the wall of the shaft pipe gallery, and the vertical equipment adjusting unit is arranged on the transverse support; or the supporting mechanism comprises a vertical support and a transverse support, the bottom of the vertical support is connected with the ground, the top of the vertical support is connected with the transverse support, one end of the transverse support is connected with the wall of the vertical shaft pipe gallery, and the vertical equipment adjusting unit is arranged on the transverse support.
In an embodiment of the invention, the gas insulated transmission line further comprises a docking unit, wherein the docking unit is used for docking a vertical equipment unit and a horizontal equipment unit of the gas insulated transmission line, and when the vertical equipment unit is displaced relative to the horizontal equipment unit, the docking unit can be used for docking the vertical equipment unit and the horizontal equipment unit in a matching manner.
In one embodiment of the present invention, the docking unit includes a first angled bellows, a first end of the first angled bellows is connected to the vertical equipment unit, and a second end of the first angled bellows is connected to the horizontal equipment unit.
In an embodiment of the present invention, the docking unit further includes a second angular bellows, a first end of the second angular bellows is connected to a second end of the first angular bellows through a horizontal equipment line, and a second end of the second angular bellows is connected to the horizontal equipment unit.
Compared with the prior art, the technical scheme of the invention has the following advantages:
according to the high-fall vertical shaft mounting structure of the gas insulated transmission line, the horizontal height of the vertical equipment unit is adjusted by additionally arranging the vertical equipment adjusting unit, so that the vertical equipment unit can be aligned with the fixed support during mounting, the existing corrugated pipe is replaced, the operation is easier, the size of the vertical equipment unit is not increased due to the replacement of the corrugated pipe, and the phase distance of GIL equipment, the distance between the GIL equipment and a vertical shaft pipe gallery and the size of an inner cavity of the vertical shaft pipe gallery are prevented from being enlarged.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the embodiments of the present disclosure taken in conjunction with the accompanying drawings, in which
Fig. 1 is a schematic overall structure diagram of a gas insulated transmission line high-drop height shaft installation structure in the invention.
Fig. 2 is a schematic top view of the gas insulated transmission line high fall shaft installation structure shown in fig. 1.
Fig. 3 is a schematic structural diagram of a vertical equipment adjusting unit in the gas insulated transmission line high-fall shaft installation structure shown in fig. 1.
Fig. 4 is another side structural schematic diagram of the vertical equipment adjusting unit in the gas insulated transmission line high-fall shaft installation structure shown in fig. 1.
The specification reference numbers indicate: 1. a vertical equipment adjustment unit; 101. a hydraulic cylinder; 102. an oil pump; 2. a docking unit; 201. a first angled bellows; 202. a second angular bellows; 203. a horizontal device line; 3. a vertical equipment unit; 4. a horizontal device unit; 5. a support mechanism; 501. vertical support; 502. transversely supporting; 503. oil pump fixed plate.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Referring to fig. 1-4, the high-fall shaft installation structure for the gas-insulated transmission line comprises a vertical equipment adjusting unit 1 and a docking unit 2, wherein the vertical equipment adjusting unit 1 and the docking unit 2 are used for installing the gas-insulated transmission line, the gas-insulated transmission line comprises a vertical equipment unit 3 and a horizontal equipment unit 4, the vertical equipment adjusting unit 1 is connected with the vertical equipment unit 3 and can adjust the horizontal height of the vertical equipment unit 3, the horizontal equipment unit 4 is connected with the vertical equipment unit 3 through the docking unit 2, and both the vertical equipment unit 3 and the horizontal equipment unit 4 are fixedly supported and arranged in a shaft pipe gallery. The vertical equipment adjusting unit 1 can be a motor lead screw, an electric push rod and other equipment, and after the vertical equipment unit 3 is installed, the vertical equipment unit 3 can expand with heat and contract with cold after being affected by the ambient temperature, so that the size of the vertical equipment unit 3 changes, and therefore if the vertical equipment unit 3 is installed, the vertical equipment unit 3 needs to be detached to avoid damage to the vertical equipment unit 3 due to the limitation of the motor lead screw, the electric push rod and other equipment when the vertical equipment unit 3 expands with heat and contracts with cold and the length changes, preferably, when the vertical equipment adjusting unit 1 is in a first working state, the vertical equipment unit 3 is driven and supported to move vertically to adjust the horizontal height of the vertical equipment unit 3; when the vertical equipment adjusting unit 1 is in the second working state, the vertical equipment unit 3 can move in the vertical direction. Specifically, the vertical equipment adjusting unit 1 comprises a hydraulic cylinder 101, and a piston rod of the hydraulic cylinder 101 is connected with the vertical equipment unit 3; when hydraulic oil is injected into the hydraulic cylinder 101, the hydraulic cylinder 101 operates in the first working state; after the hydraulic pressure in the hydraulic cylinder 101 is removed, the hydraulic cylinder 101 operates in the second working state, and more specifically, the vertical equipment adjusting unit 1 further includes an oil pump 102, the hydraulic cylinder 101 is connected to the oil pump 102, and hydraulic oil is injected into the hydraulic cylinder 101 through the oil pump 102. In this embodiment, the horizontal height of the vertical equipment unit 3 is adjusted by the hydraulic cylinder 101 and the oil pump 102, after the equipment is installed, the whole vertical equipment adjusting unit 1 does not need to be detached, and the hydraulic pressure in the hydraulic cylinder 101 can be removed, so that the vertical equipment unit 3 can freely stretch and retract when expanding with heat and contracting with cold.
In this embodiment, preferably, pneumatic cylinder 101 includes two, and sets up respectively vertical equipment unit 3's both sides have improved regulation efficiency through two pneumatic cylinders 101, every promptly vertical equipment unit 3 corresponds two pneumatic cylinders 101 and an oil pump 102, adopt equipment such as motor lead screw, electric putter relatively, in this embodiment, under the condition that has improved regulation efficiency, power unit need not add, if adopt equipment such as motor lead screw, electric putter, when improving regulation efficiency, power unit drive all need be add to both sides, the mode of setting in this embodiment has avoided too complicated in the piping lane structure, and has practiced thrift the cost.
In this embodiment, the vertical device adjusting unit 1 may further adopt an air cylinder, and a piston rod of the air cylinder is connected with the vertical device unit; when compressed air is injected into the air cylinder, the air cylinder operates in the first working state; after the compressed air in the air cylinder is discharged, the air cylinder operates in the second working state, and the specific structure is not described.
Since the vertical equipment units 3 are usually used in multiple groups, three vertical equipment units 3 are one loop (that is, one loop includes three phases), and when the vertical shaft with high head is used, there are usually multiple loops, and correspondingly, the horizontal equipment units 4 also have multiple loops, in order to avoid interference between the vertical equipment adjusting unit 1 corresponding to a certain vertical equipment unit 3 and the other horizontal equipment units 4 of the loop where the vertical equipment unit 3 is located or the horizontal equipment units 4 of the other loops, in this embodiment, the vertical equipment adjusting unit 1 is set at a predetermined height through the supporting mechanism 5, and preferably, the predetermined height is higher than the height of the horizontal equipment unit 4 with the highest horizontal height among all the horizontal equipment units 4. Specifically, in this embodiment, the supporting mechanism 5 includes a vertical support 501, the bottom of the vertical support 501 is connected with the ground, the vertical equipment adjusting unit 1 is disposed on the top of the vertical support 501, the vertical support 501 may be a columnar structure, and preferably, the vertical support 501 may be located between two adjacent vertical equipment units 3 in the horizontal direction and between the vertical equipment unit 3 and a vertical pipe gallery, so as to avoid interference with the vertical equipment unit 3 and the horizontal equipment unit 4; more preferably, the supporting mechanism 5 may further include a lateral support 502, one end of the lateral support 502 is connected to a shaft pipe gallery wall, the vertical equipment adjusting unit 1 is disposed on the lateral support 502, the lateral support 502 may be located between two adjacent vertical equipment units 3 in a horizontal direction so as to avoid interference with the vertical equipment units 3, and the lateral support 502 may be disposed at a predetermined height by itself so as not to interfere with the horizontal equipment unit 4; more preferably, the supporting mechanism 5 includes the vertical support 501 and the horizontal support 502 at the same time, the vertical support 501 supports the horizontal support 502, the vertical equipment adjusting unit 1 is disposed on the horizontal support 502, through the combination of the vertical support 501 and the horizontal support 502, the space where the vertical equipment adjusting unit 1 can be placed is enlarged relative to the vertical support 501 only, and the entire supporting mechanism 5 is more stable under the condition that interference is not caused, relative to the horizontal support 502 only. In this embodiment, the lateral support 502 and the vertical support 501 can be fixed by chemical anchors or expansion bolts. In this embodiment, in order to further optimize the structure in the shaft pipe gallery, the oil pump 102 may be disposed on the lateral supports 502 through an oil pump fixing plate 503, and the oil pump fixing plate 503 is arranged on the lateral supports 502 of the circuits along the extending direction of the horizontal equipment unit.
In the prior art, because the corrugated pipe is arranged on the vertical equipment unit 3, after the vertical equipment unit 3 is influenced by the ambient temperature, the error generated when the vertical equipment unit expands with heat and contracts with cold is also absorbed by the corrugated pipe, the dead load of the vertical equipment unit 3, the pipeline rigidity load caused by thermal expansion and cold contraction and the air pressure load are all supported by the fixed support of the vertical equipment unit 3, which is not beneficial to the stable operation of the whole GIL equipment, the fixed support of the vertical equipment unit 3 is usually a top fixed support and a bottom fixed support, in this embodiment, the fixed support at the bottom of the vertical equipment unit 3 is cancelled, the vertical equipment unit 1 and the fixed support at the top are used for supporting, when the vertical equipment unit 3 expands with heat and contracts with cold, the whole GIL equipment is kept stable through the butt joint unit 2.
The docking unit 2 includes a first angular corrugated pipe 201, a first end of the first angular corrugated pipe 201 is connected to the vertical equipment unit 3, a second end of the first angular corrugated pipe 201 is connected to the horizontal equipment unit 4, in this embodiment, the axial change of the vertical equipment unit 3 caused by thermal expansion and cold contraction is converted into the radial angle change of the first angular corrugated pipe 201 through the first angular corrugated pipe 201, so that the fixed support of the vertical equipment unit 3 is not abnormally stressed. Preferably, the vertical equipment unit further comprises a second angular corrugated pipe 202, a first end of the second angular corrugated pipe 202 is connected with a second end of the first angular corrugated pipe 201 through a horizontal equipment line 203, a second end of the second angular corrugated pipe 202 is connected with the horizontal equipment unit 4, because the angular corrugated pipe can only change angles towards one direction at the same time, when two horizontal pipes at different levels are butted, the butted pipe needs to change angles twice, if the two angular corrugated pipes are directly connected, the angular corrugated pipe is uncontrollable and damaged easily, therefore, in the embodiment, the angular corrugated pipe unit is formed by the first angular corrugated pipe 201, the second angular corrugated pipe 202 and the horizontal equipment line 203, so that the axial change of the vertical equipment unit 3 during heat and cold shrinkage can be better converted into the radial angle change of the angular corrugated pipe unit, for example, when the vertical equipment unit 3 is thermally expanded, the size of the vertical equipment unit 3 is increased, the bottom of the vertical equipment unit 3 extends downwards, and at the moment, the angular corrugated pipe unit moves clockwise around the connecting point of the horizontal equipment unit 4; when vertical equipment unit 3 contracts, the size diminishes, vertical equipment unit 3 bottom shortens up, and at this moment, the angular bellows unit with horizontal equipment unit 4's tie point is centre of a circle counter-clockwise motion.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.
Claims (10)
1. The utility model provides a gas insulated transmission line high drop shaft mounting structure which characterized in that: the gas insulated transmission line horizontal height adjusting device comprises a vertical device adjusting unit, wherein the vertical device adjusting unit is connected with a vertical device unit of a gas insulated transmission line and can adjust the horizontal height of the vertical device unit.
2. The gas insulated transmission line high drop height shaft mounting structure of claim 1, characterized in that: when the vertical equipment adjusting unit is in a first working state, the vertical equipment adjusting unit is driven and supported to move vertically so as to adjust the horizontal height of the vertical equipment adjusting unit; when the vertical equipment adjusting unit is in the second working state, the vertical equipment unit can move in the vertical direction automatically.
3. The gas insulated transmission line high drop height shaft mounting structure of claim 2, characterized in that: the vertical equipment adjusting unit comprises a hydraulic cylinder, and a piston rod of the hydraulic cylinder is connected with the vertical equipment unit; when hydraulic oil is injected into the hydraulic cylinder, the hydraulic cylinder operates in the first working state; and after the hydraulic pressure in the hydraulic cylinder is removed, the hydraulic cylinder operates in the second working state.
4. The gas insulated transmission line high drop height shaft mounting structure of claim 3, characterized in that: the vertical equipment adjusting unit further comprises an oil pump, the hydraulic cylinder is connected with the oil pump, and hydraulic oil is injected into the hydraulic cylinder through the oil pump.
5. The gas insulated transmission line high drop height shaft mounting structure of claim 4, characterized in that: the hydraulic cylinders comprise two hydraulic cylinders which are respectively arranged on two sides of the vertical equipment unit.
6. The gas insulated transmission line high drop height shaft mounting structure of claim 2, characterized in that: the vertical equipment adjusting unit comprises an air cylinder, and a piston rod of the air cylinder is connected with the vertical equipment unit; when compressed air is injected into the air cylinder, the air cylinder operates in the first working state; and after the compressed air in the air cylinder is discharged, the air cylinder operates in the second working state.
7. The gas insulated transmission line high drop height shaft mounting structure of any one of claims 1 to 6, wherein: the vertical equipment adjusting unit is arranged at a preset height through a supporting mechanism, the supporting mechanism comprises a vertical support, the bottom of the vertical support is connected with the ground, and the vertical equipment adjusting unit is arranged at the top of the vertical support; or the supporting mechanism comprises a transverse support, one end of the transverse support is connected with the wall of the shaft pipe gallery, and the vertical equipment adjusting unit is arranged on the transverse support; or the supporting mechanism comprises a vertical support and a transverse support, the bottom of the vertical support is connected with the ground, the top of the vertical support is connected with the transverse support, one end of the transverse support is connected with the wall of the vertical shaft pipe gallery, and the vertical equipment adjusting unit is arranged on the transverse support.
8. The gas insulated transmission line high drop height shaft mounting structure of claim 1, characterized in that: the butt joint unit is used for butt joint of a vertical equipment unit and a horizontal equipment unit of the gas insulated transmission line, and when the vertical equipment unit displaces relative to the horizontal equipment unit, the butt joint unit can butt joint the vertical equipment unit and the horizontal equipment unit in a matching mode.
9. The gas insulated transmission line high drop height shaft mounting structure of claim 8, wherein: the butt joint unit comprises a first angular corrugated pipe, the first end of the first angular corrugated pipe is connected with the vertical equipment unit, and the second end of the first angular corrugated pipe is connected with the horizontal equipment unit.
10. The gas insulated transmission line high drop height shaft mounting structure of claim 9, wherein: the butt joint unit further comprises a second angular corrugated pipe, the first end of the second angular corrugated pipe is connected with the second end of the first angular corrugated pipe through a horizontal equipment line, and the second end of the second angular corrugated pipe is connected with the horizontal equipment unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110791530.2A CN113488931A (en) | 2021-07-13 | 2021-07-13 | Gas insulated transmission line high-fall shaft mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110791530.2A CN113488931A (en) | 2021-07-13 | 2021-07-13 | Gas insulated transmission line high-fall shaft mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113488931A true CN113488931A (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110791530.2A Pending CN113488931A (en) | 2021-07-13 | 2021-07-13 | Gas insulated transmission line high-fall shaft mounting structure |
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| Country | Link |
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| CN (1) | CN113488931A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001037053A (en) * | 1999-07-22 | 2001-02-09 | Mitsubishi Electric Corp | Gas insulated line apparatus |
| CN101552430A (en) * | 2009-05-11 | 2009-10-07 | 中国水电顾问集团西北勘测设计研究院 | Method for installing and hoisting gas-insulated metal closed power transmission line in shaft and device thereof |
| CN201398022Y (en) * | 2009-05-11 | 2010-02-03 | 中国水电顾问集团西北勘测设计研究院 | Ultrahigh voltage gas insulated metal closing transmission line fixed mechanism in high drop shaft |
| CN101718824A (en) * | 2009-12-07 | 2010-06-02 | 中国电力科学研究院 | Experiment device used for extra-high voltage alternating current-direct current gas insulated metal enclosed transmission line |
| CN211900487U (en) * | 2019-11-29 | 2020-11-10 | 盐城市开明钻采设备有限公司 | Well killing manifold device capable of being positioned quickly |
| CN212251646U (en) * | 2020-02-27 | 2020-12-29 | 江苏省埃迪机电设备实业有限公司 | Angular corrugated pipe |
-
2021
- 2021-07-13 CN CN202110791530.2A patent/CN113488931A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001037053A (en) * | 1999-07-22 | 2001-02-09 | Mitsubishi Electric Corp | Gas insulated line apparatus |
| CN101552430A (en) * | 2009-05-11 | 2009-10-07 | 中国水电顾问集团西北勘测设计研究院 | Method for installing and hoisting gas-insulated metal closed power transmission line in shaft and device thereof |
| CN201398022Y (en) * | 2009-05-11 | 2010-02-03 | 中国水电顾问集团西北勘测设计研究院 | Ultrahigh voltage gas insulated metal closing transmission line fixed mechanism in high drop shaft |
| CN101718824A (en) * | 2009-12-07 | 2010-06-02 | 中国电力科学研究院 | Experiment device used for extra-high voltage alternating current-direct current gas insulated metal enclosed transmission line |
| CN211900487U (en) * | 2019-11-29 | 2020-11-10 | 盐城市开明钻采设备有限公司 | Well killing manifold device capable of being positioned quickly |
| CN212251646U (en) * | 2020-02-27 | 2020-12-29 | 江苏省埃迪机电设备实业有限公司 | Angular corrugated pipe |
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Application publication date: 20211008 |
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