CN107834477B - Tube master alloy tool for converter station valve hall - Google Patents
Tube master alloy tool for converter station valve hall Download PDFInfo
- Publication number
- CN107834477B CN107834477B CN201710930803.0A CN201710930803A CN107834477B CN 107834477 B CN107834477 B CN 107834477B CN 201710930803 A CN201710930803 A CN 201710930803A CN 107834477 B CN107834477 B CN 107834477B
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- China
- Prior art keywords
- tubular
- valve hall
- converter station
- busbars
- hinges
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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
- H02G5/00—Installations of bus-bars
- H02G5/06—Totally-enclosed installations, e.g. in metal casings
- H02G5/061—Tubular casings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Abstract
The invention discloses a tubular master alloy tool for a converter station valve hall, relates to the technical field of alloy tools, and aims to solve the problem that the conventional tubular master alloy tool can damage equipment or disconnect the equipment due to larger stress under the earthquake working condition, so that the valve hall equipment loses the basic electrical performance of the valve hall equipment. This pipe master alloy utensil is used in current conversion station valve room includes two first pipe is female, the one end of two first pipe is used for being connected with two equipment one-to-one, the other end passes through connecting element and links as an organic wholely, connecting element includes conductive structure, the one end that two first pipe is close to connecting element all is connected through the wire with conductive structure, connecting element department is equipped with the pressure-equalizing piece that is used for even electric field, connecting element accessible takes place deformation and allows the motion of two first pipe mother in the horizontal direction, so that two first pipe is female to be used for the distance change with the one end that equipment is connected. The invention is used for realizing the electrical connection, mechanical support and voltage equalizing shielding between two devices in a valve hall of a convertor station.
Description
Technical Field
The invention relates to the technical field of hardware fittings, in particular to a tubular bus hardware fitting for a valve hall of a converter station.
Background
The high-voltage direct-current transmission can transmit a large amount of electric power energy with long distance, low loss and no drop point, and has been widely used in China. The valve hall of the convertor station is used as a core of a direct current transmission project and is a place for carrying out alternating current-direct current conversion in the direct current transmission process. The valve hall is internally provided with a plurality of devices such as a converter valve, a wall bushing, a converter valve side bushing, a post insulator, a lightning arrester, a grounding switch and the like.
In the prior art, the electrical connection and the voltage equalizing shielding between two devices are realized through a tube master tool, namely, two connecting ends of the tube master tool in the prior art are used for connecting the two devices in a one-to-one correspondence manner.
For the converter station in the high seismic intensity area, under the normal working condition, the tubular busbar fitting can meet the requirements of electric, current carrying, temperature rise and mechanical properties; however, under the earthquake working condition, each device in the valve hall swings in different directions due to the difference of earthquake wave action and self mechanical vibration characteristics, so that larger relative displacement can be generated between the devices, namely the distance between the two devices can be changed greatly, however, the distance between the two connecting ends of the tubular bus fitting is basically unchanged, so that larger stress exists between the two connecting ends and the connected devices, and the devices are easy to damage or disconnect from the corresponding devices, thereby the valve hall loses the basic electrical performance.
Disclosure of Invention
The embodiment of the invention provides a pipe master fitting for a converter station valve hall, which can solve the problem that the existing pipe master fitting can damage equipment or disconnect corresponding equipment due to larger stress under the earthquake working condition, so that the valve hall loses the basic electrical performance of the valve hall.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical scheme:
the utility model provides a female gold utensil of pipe for converter station valve hall, includes two first pipe is female, two the one end of first pipe is used for being connected with two equipment one-to-one, and the other end passes through connecting element and links as an organic wholely, connecting element includes electrically conductive structure, two first pipe is female be close to connecting element's one end all with electrically conductive structure passes through the wire to be connected, connecting element department is equipped with the pressure-equalizing piece that is used for even electric field, connecting element accessible takes place deformation and allows two first pipe is female the motion in the horizontal direction to make two first pipe is female is used for the distance change between the one end of being connected with equipment.
Further, the conductive structure comprises a strip-shaped member, the connecting unit further comprises two hinges arranged at two ends of the strip-shaped member, the hinge shafts of the two hinges are all vertically arranged, and two ends of the strip-shaped member are hinged with corresponding ends of the two first tubular buses in a one-to-one correspondence mode through corresponding hinges respectively.
Further, the elongated member and the two first tubular nuts are both horizontally arranged.
Further, the two first tubular nuts are respectively located at two sides of the extending direction of the elongated member, the two first tubular nuts further comprise two suspension units corresponding to the two hinges one by one, the bottom ends of the suspension units are fixed with the hinge shafts of the corresponding hinges, and the top ends of the suspension units are hinged with the top wall of the valve hall.
Further, the long strip-shaped piece is a second pipe nut.
Further, the pressure equalizing pieces are arranged at the two hinge positions.
Further, the pressure equalizing piece is an equalizing ring, and the equalizing ring is fixed on the hinge shaft of the corresponding hinge through a bracket.
Further, the equalizing rings are arranged on two sides of each hinge along the extending direction of the hinge shaft.
Further, the two equalizing rings positioned on two sides of the same hinge have the same size.
According to the tubular busbar fitting for the valve hall of the convertor station, provided by the embodiment of the invention, as the tubular busbar fitting comprises the two first tubular busbars, one ends of the two first tubular busbars are used for being connected with two devices in a one-to-one correspondence manner, the other ends of the two first tubular busbars are connected into a whole through the connecting unit, the connecting unit comprises a conductive structure, one ends of the two first tubular busbars, which are close to the connecting unit, are connected with the conductive structure through wires, the connecting unit is provided with a voltage equalizing piece for an even electric field, the connecting unit can allow the two first tubular busbars to move in the horizontal direction through deformation, so that the distance between one ends of the two first tubular busbars, which are used for being connected with the devices, is changed, and therefore, when the horizontal distance between the two first tubular busbars and the devices is changed, the distance between the two first tubular busbars and the one ends of the devices is adaptively changed, namely, flexible connection and displacement decoupling between the devices are realized, and the problem that the two first tubular busbars are used for being connected with the devices and the devices are damaged due to larger stress is avoided, and the corresponding valve performance of the valve is basically lost.
Drawings
Fig. 1 is a schematic view of a tubular busbar fitting for a converter station valve hall according to an embodiment of the present invention;
fig. 2 is another schematic view of an angle of a tubular busbar fitting for a valve hall of a converter station according to an embodiment of the present invention;
FIG. 3 shows a reverse seismic force F of the apparatus connected to both ends of a tubular bus fitting A, B for a valve hall of a converter station according to an embodiment of the present invention 1 And F 2 Top view of the two parts when being away from each other under the action of the (a);
fig. 4 shows a reverse seismic force F of the apparatus connected to both ends of a tubular busbar fitting A, B for a converter station valve hall according to an embodiment of the present invention 1 And F 2 Is close to each other under the action of the light source.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 and 2, an embodiment of the present invention provides a busbar fitting for a valve hall of a converter station, which includes two first busbars 1, one ends of the two first busbars 1 are used for being connected with two devices (not shown in the figure) in a one-to-one correspondence manner, the other ends of the two first busbars 1 are connected into a whole through a connecting unit 2, the connecting unit 2 includes a conductive structure 21, one ends of the two first busbars 1, which are close to the connecting unit 2, are both connected with the conductive structure 21 through wires 3, typically, the wires 3 are aluminum twisted wires or copper strips, the specific number and type are determined by the maximum current carrying requirements (typically, 4 to 6) of the busbar fitting, a voltage equalizing piece 4 for equalizing an electric field is provided at the connecting unit 2, and the connecting unit 2 can allow the movement of the two first busbars 1 in a horizontal direction by being deformed so that the distance between the two first busbars 1 used for being connected with the devices is changed.
According to the tubular busbar fitting for the valve hall of the convertor station, provided by the embodiment of the invention, as the tubular busbar fitting comprises the two first tubular busbars 1, one ends of the two first tubular busbars 1 are used for being connected with two devices in a one-to-one correspondence manner, the other ends of the two first tubular busbars 1 are connected into a whole through the connecting unit 2, the connecting unit 2 comprises the conducting structure 21, one ends of the two first tubular busbars 1, which are close to the connecting unit 2, are connected with the conducting structure 21 through the conducting wire 3, the connecting unit 2 is provided with the equalizing piece 4 for uniform electric fields, the connecting unit 2 can allow the two first tubular busbars 1 to move in the horizontal direction through deformation, so that the distance between one ends of the two first tubular busbars 1, which are used for being connected with the devices, is changed, and therefore, when the horizontal distance between the two first tubular busbars 1 and one ends of the two first tubular busbars 1, which are used for being connected with the devices, are changed in the horizontal direction, so that the distance between the two first tubular busbars 1 and the one ends of the devices is adaptively changed, namely, flexible connection and displacement decoupling between the devices is realized, and the flexible connection between the two first tubular busbars 1 and the devices is prevented from being damaged due to the fact that the one ends of the two first tubular busbars are connected with the devices or the corresponding devices are disconnected with the devices, and the corresponding devices are lost, and the valve performance is basically lost, is avoided.
Various embodiments of the conductive structure 21 are illustrated, the conductive structure 21 may include a plurality of elongated members, the plurality of elongated members are hinged in turn and electrically connected, the hinge axes of the elongated members are vertical, two elongated members at two ends are respectively fixed in one-to-one correspondence with the corresponding ends of the two first tubular nuts 1, at this time, the connection unit 2 only includes the conductive structure 21, the connection unit 2 is deformed, that is, the conductive structure 21 is deformed, that is, the included angle between two adjacent elongated members of the plurality of hinged elongated members is changed, so as to allow the two first tubular nuts 1 to move in the horizontal direction; in this embodiment, the conductive structure 21 preferably includes an elongated member, where the connection unit 2 further includes two hinges 22 disposed at two ends of the elongated member, and hinge axes of the two hinges 22 are vertically disposed, and two ends of the elongated member are hinged to corresponding ends of the two first tubular nuts 1 through corresponding hinges 22, respectively, and the connection unit 2 is deformed, that is, two portions of each hinge 22 relatively rotate, so as to allow the two first tubular nuts 1 to move in a horizontal direction; this embodiment makes the structure simpler than the conductive structure 21 including a plurality of elongated pieces.
Preferably, the strip-shaped piece and the two first tubular nuts 1 are horizontally arranged, compared with the inclined arrangement, the horizontal arrangement can reduce the space occupied by the tubular nut in the height direction, simplify fitting installation, optimize air clearance of the valve hall, and optimize space and layout in the valve hall.
On the basis of the above embodiment, referring to fig. 1 to 4, in this embodiment, two first tubular nuts 1 are respectively located at two sides of the extension direction of the elongated member, that is, the two first tubular nuts 1 are not located at the same side of the extension direction of the elongated member, the tubular nut fitting further includes two suspension units 5 corresponding to the two hinges 22 one by one, the bottom ends of the suspension units 5 are fixed with the hinge shafts of the corresponding hinges 22, and the top ends are used for hinging with the top wall of the valve hall; specifically, the suspension unit 5 includes a suspension insulator 51 (typically, a composite insulator), a suspension plate (not shown) on which the suspension insulator 51 is provided with a equalizing ring 52 and a bottom end of the suspension insulator 51, and the like;
the tubular busbar fitting in the embodiment meets the requirement of horizontal relative displacement between devices under the earthquake working condition by the following modes:
as shown in FIG. 3, when the devices connected to the two ends of the tubular busbar A, B are exposed to a reverse seismic force F 1 And F 2 When the two ends of A, B are pulled in opposite directions under the action of each other, the two parts of each hinge 22 are rotated relative to each other (which functions like a stretching of a joint), while the elongated members are rotated counterclockwise to tilt, thereby allowing the two first tubular nuts 1 to follow the respective devices in a horizontal direction away from each other. Wherein, the lead 3 is in soft connection, and can adapt to the stretching of the tubular bus fitting through the shrinkage of the lead. Under normal working conditions, the horizontal distance between the two ends of the tubular bus fitting A, B is L 1 +L 3 Under the earthquake working condition, the horizontal distance between the two ends of the tubular bus fitting A, B can be theoretically stretched to L 1 +L 2 +L 3 Meaning that the maximum horizontal stretching displacement which the tubular bus fitting can adapt to is L 2 Thus by adjusting L 2 The length of the device can meet the requirement of horizontal relative displacement among devices under different earthquake working conditions;
as shown in FIG. 4, when the devices connected to the two ends of the tubular busbar A, B are exposed to a reverse seismic force F 1 And F 2 When approaching each other under the action of (a) A, B, the two ends of the hinge are pushed reversely, and at this time, each hingeThe two parts of the chain 22 are turned relative to each other (functioning like the contraction of a joint) while the elongated members are turned clockwise to tilt, allowing the two first tubular nuts 1 to follow the respective devices close to each other in the horizontal direction. Wherein, the lead 3 is flexible connection, and can adapt to the shortening of the tubular bus fitting by self-unfolding. Under normal working conditions, the horizontal distance between the two ends of the tubular bus fitting A, B is L 1 +L 3 Under the earthquake working condition, the horizontal distance between the two ends of the tubular bus fitting A, B can be theoretically compressed to L 1 +L 3 -L 2 (in general, L) 1 And L is equal to 3 Are all greater than L 2 ) Meaning that the maximum horizontal compression displacement which the tubular bus fitting can adapt to is L 2 Thus by adjusting L 2 The horizontal relative displacement requirement between the devices under different earthquake working conditions can be met.
In particular, the elongated member is a second tube precursor, and the first tube precursor 1 and the second tube precursor are typically hollow aluminum tubes.
Referring to fig. 1 to 4, the pressure equalizing members 4 are provided at both hinges 22, whereby distortion of electric field strength at the junction of the elongated member and the corresponding first tube 1 due to high voltage can be improved by each pressure equalizing member 4, and an effect of uniform electric field can be achieved.
The equalizing piece 4 is preferably an equalizing ring, and the equalizing ring is fixed on the hinge shaft of the corresponding hinge 22 through the bracket 6, so that compared with an equalizing ball, the equalizing ring does not need to be provided with an avoiding groove allowing the first pipe nut 1 and the long-strip-shaped member to move, and the manufacturing of the pipe nut fitting is facilitated.
Each hinge 22 is provided with a grading ring along two sides of the extending direction of the hinge shaft, namely, the upper part and the lower part of each hinge 22 are provided with grading rings, so that the effect of better uniform electric field and corona discharge prevention can be achieved at the corresponding connecting positions.
On the basis of the above embodiment, the two equalizing rings on two sides of the same hinge 22 in this embodiment have the same size, so that the equalizing rings can further play a better role in uniform electric field at the corresponding connection position, so as to meet engineering requirements, and in particular, the pipe diameter, the outer diameter and the installation position of the equalizing rings can be obtained by electric field simulation calculation.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The tubular busbar fitting for the valve hall of the converter station is characterized by comprising two first tubular busbars, wherein one ends of the two first tubular busbars are used for being connected with two devices in a one-to-one correspondence manner, the other ends of the two first tubular busbars are connected into a whole through a connecting unit, the connecting unit comprises a conductive structure, one ends of the two first tubular busbars, which are close to the connecting unit, are connected with the conductive structure through wires, a voltage equalizing piece for an even electric field is arranged at the connecting unit, and the connecting unit can allow the two first tubular busbars to move in the horizontal direction through deformation so as to change the distance between the two first tubular busbars and one ends of the two first tubular busbars, which are connected with the devices;
the conductive structure comprises a strip-shaped member, the connecting unit further comprises two hinges arranged at two ends of the strip-shaped member, the hinge shafts of the two hinges are vertically arranged, and two ends of the strip-shaped member are hinged with corresponding ends of the two first tubular buses in a one-to-one correspondence manner through corresponding hinges respectively;
the two first tubular nuts are respectively positioned at two sides of the extending direction of the elongated member, the two first tubular nuts further comprise two suspension units which are in one-to-one correspondence with the two hinges, the bottom ends of the suspension units are fixed with the hinge shafts of the corresponding hinges, and the top ends of the suspension units are hinged with the top wall of the valve hall.
2. The tubular busbar fitting for a converter station valve hall according to claim 1, wherein the elongated member and the two first tubular busbar are both horizontally disposed.
3. The converter station valve hall tubular busbar fitting of claim 1, wherein the elongate member is a second tubular busbar.
4. The tubular busbar fitting for a converter station valve hall according to claim 1, wherein the pressure equalizing members are provided at both the hinges.
5. The tubular busbar fitting for a converter station valve hall according to claim 4, wherein the pressure equalizing member is an equalizing ring, and the equalizing ring is fixed on the hinge shaft of the corresponding hinge through a bracket.
6. The tubular busbar fitting for a converter station valve hall according to claim 5, wherein each of the hinges is provided with the equalizing ring on both sides in the extending direction of the hinge shaft thereof.
7. The tubular busbar fitting for a converter station valve hall according to claim 6, wherein the two equalizing rings located on both sides of the same hinge are identical in size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710930803.0A CN107834477B (en) | 2017-10-09 | 2017-10-09 | Tube master alloy tool for converter station valve hall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710930803.0A CN107834477B (en) | 2017-10-09 | 2017-10-09 | Tube master alloy tool for converter station valve hall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107834477A CN107834477A (en) | 2018-03-23 |
| CN107834477B true CN107834477B (en) | 2023-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710930803.0A Active CN107834477B (en) | 2017-10-09 | 2017-10-09 | Tube master alloy tool for converter station valve hall |
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| CN (1) | CN107834477B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493981B (en) * | 2018-04-18 | 2024-03-12 | 中国电力工程顾问集团西南电力设计院有限公司 | Double-joint connecting structure between converter transformer and converter valve |
| CN108667060B (en) * | 2018-04-18 | 2021-06-08 | 中国电力工程顾问集团西南电力设计院有限公司 | Method for improving operation reliability of converter valve tower in converter station |
| CN108599066B (en) * | 2018-04-23 | 2020-07-07 | 许继电气股份有限公司 | Tubular bus fitting for converter valve hall and converter valve hall |
| CN108963925B (en) * | 2018-09-20 | 2024-02-13 | 南方电网科学研究院有限责任公司 | Combined hardware fitting |
| CN109243729B (en) * | 2018-09-20 | 2023-12-22 | 南方电网科学研究院有限责任公司 | Equalizing ring hardware fitting |
| GB2622045A (en) * | 2022-08-31 | 2024-03-06 | Eaton Intelligent Power Ltd | Branch busbar device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206332416U (en) * | 2016-10-28 | 2017-07-14 | 国家电网公司 | A kind of current conversion station slides/be fixedly connected excessively stream with pipe mother and static contact fixes gold utensil |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201601442U (en) * | 2010-01-25 | 2010-10-06 | 辽宁锦兴电力金具科技股份有限公司 | Welding wire type double tubular bus-bar sleeve valve hall hardware fitting |
| CN203387132U (en) * | 2013-05-27 | 2014-01-08 | 国家电网公司 | Connecting structure of converter station valve hall wall bushing and tubular bus-bar and connecting fitting thereof |
| CN103633592B (en) * | 2013-12-13 | 2016-03-16 | 国家电网公司 | A kind of 800kV current conversion station cover tube and tube bus bar bridging overcurrent gold utensil |
| CN207251138U (en) * | 2017-10-09 | 2018-04-17 | 南方电网科学研究院有限责任公司 | A kind of converter station valve hall has with pipe capital |
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2017
- 2017-10-09 CN CN201710930803.0A patent/CN107834477B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206332416U (en) * | 2016-10-28 | 2017-07-14 | 国家电网公司 | A kind of current conversion station slides/be fixedly connected excessively stream with pipe mother and static contact fixes gold utensil |
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| CN107834477A (en) | 2018-03-23 |
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