CN215871207U - Quadruple valve tower of thyristor converter valve - Google Patents
Quadruple valve tower of thyristor converter valve Download PDFInfo
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- CN215871207U CN215871207U CN202121320113.1U CN202121320113U CN215871207U CN 215871207 U CN215871207 U CN 215871207U CN 202121320113 U CN202121320113 U CN 202121320113U CN 215871207 U CN215871207 U CN 215871207U
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Abstract
The application discloses thyristor converter valve quadruple valve tower includes: the four groups of single valves form a plurality of valve layers, each group of single valves comprises odd valve modules, each valve layer comprises two valve modules which are connected in series into a whole, and adjacent valve layers are connected in series through a connecting bus; the valve layer number of the upper side and the lower side of the middle layer is equal, one end of the middle layer is provided with a neutral direct current outlet interface, a middle switching busbar is arranged in the middle layer, one end of the middle switching busbar is respectively connected with the adjacent valve layers, and the other end of the middle switching busbar is connected with the neutral direct current outlet interface; the bottom shielding cover is arranged at the bottom of the bottommost valve layer, one end of the bottom shielding cover is provided with a first straight-flow line interface, and the first straight-flow line interface is connected with the upper side valve layer; and the top shielding cover is arranged at the top of the topmost valve layer, one end of the top shielding cover is provided with a second direct current outlet interface, and the second direct current outlet interface is connected with the lower valve layer. The application can simplify the internal circuit of the valve tower, and the valve tower is convenient to overhaul.
Description
Technical Field
The application relates to the technical field of converter valve towers, in particular to a thyristor converter valve quadruple valve tower.
Background
At present, thyristor-based converter valve towers generally adopt double valve towers or quadruple valve towers, namely each valve tower consists of two or four single valves. According to the difference of DC voltage grades, a single valve is generally formed by connecting dozens or even hundreds of thyristors in series, the single valve comprises a plurality of valve modules, each valve module is formed by connecting dozens or even hundreds of thyristors in series, then two valve modules are connected in series in a U-shaped structure to form a valve layer, and finally a plurality of valve modules are connected in series in a spiral ascending structure to form a valve tower.
According to the requirement of equipment arrangement in a converter station valve hall, the alternating current incoming line and the direct current outgoing line of a converter valve tower need to be arranged on the same side of the valve tower, and when the number of the single valve internal valve modules is even (the number of layers of each single valve is an integer), the alternating current incoming line and the direct current outgoing line of the valve tower are easily arranged on the same side of the valve tower. However, when the number of the valve modules in the single valve is odd (half layers exist in the number of layers of each single valve), the alternating current inlet line and the direct current outlet line of the valve tower are difficult to be arranged on the same side of the valve tower.
For the double-valve tower, the form that the switching buses are arranged on the top shielding cover and the bottom shielding cover of the valve tower can be adopted to lead the alternating current incoming line and the direct current outgoing line of the valve tower to the same side. However, for the quadruple valve tower, in the related art, a method of inserting the busbar in the valve tower is adopted, the alternating current incoming line and the direct current outgoing line of the valve tower are led to the same side, but inserting the busbar in the valve tower not only affects the insulation clear distance in the valve tower, but also interferes the maintenance channel in the valve tower.
SUMMERY OF THE UTILITY MODEL
In order to satisfy when the single valve module number is the odd number, the exchange inlet wire and the straight-flow outlet wire of valve tower arrange in the demand of valve tower homonymy, this application provides a thyristor converter valve quadruple valve tower, adopts following technical scheme:
a thyristor converter valve quadruple valve tower comprising:
the four groups of single valves form a plurality of valve layers, each group of single valves comprises odd valve modules, each valve layer comprises two valve modules which are connected in series into a whole, and adjacent valve layers are connected in series through a connecting bus;
the valve layer number of the upper side and the lower side of the middle layer is equal, one end of the middle layer is provided with a neutral direct current outlet interface, a middle switching busbar is arranged in the middle layer, one end of the middle switching busbar is connected with the adjacent valve layers respectively, and the other end of the middle switching busbar is connected with the neutral direct current outlet interface;
the bottom shielding cover is arranged at the bottom of the valve layer at the bottommost layer, one end of the bottom shielding cover is provided with a first straight-flow line interface, and the first straight-flow line interface is connected with the valve layer at the upper side;
the top shielding cover is arranged at the top of the topmost valve layer, one end of the top shielding cover is provided with a second direct current outlet interface, and the second direct current outlet interface is connected with the valve layer at the lower side;
a first alternating current inlet wire interface is arranged between the middle layer and the top shielding cover and is connected with a middle valve layer between the middle layer and the top shielding layer; a second alternating current inlet wire interface is arranged between the middle layer and the bottom shielding cover and is connected with a middle valve layer between the middle layer and the bottom shielding layer; the first alternating current inlet wire interface, the second alternating current inlet wire interface, the first direct current outlet wire interface, the second direct current outlet wire interface and the neutral direct current outlet wire interface are located on the same side of the valve tower.
Optionally, two intermediate switching busbars are arranged, one end of each of the two intermediate switching busbars is connected with the neutral direct-current outlet interface after being short-circuited, and the other ends of the two intermediate switching busbars are connected with the upper valve layer and the lower valve layer respectively.
Optionally, the two intermediate switching busbars are arranged in parallel and distributed on different sides of the intermediate layer.
Optionally, one intermediate switching busbar is arranged, one end of the intermediate switching busbar is connected with the neutral direct-current outlet interface, and the other end of the intermediate switching busbar is connected with the upper and lower valve layers.
Optionally, a first switching busbar is arranged in the bottom shielding case, one end of the first switching busbar is connected with the valve layer above, and the other end of the first switching busbar is connected with the first straight line outlet;
the first switching busbar is arranged in the middle of the bottom shielding case.
Optionally, a second switching busbar is arranged in the top shielding cover, one end of the second switching busbar is connected with the valve layer below the second switching busbar, and the other end of the second switching busbar is connected with the second direct-current outlet interface;
the second switching busbar is arranged in the middle of the top shielding case.
Optionally, the first switching busbar is disposed in the bottom shielding case in a supporting manner or a suspending manner.
Optionally, the second switching busbar is disposed in the top shield cover in a supporting manner or a suspending manner.
Optionally, the valve tower is a suspended or supported valve tower.
Optionally, the system further comprises a valve arrester, and the valve arrester is connected with the four groups of single valves in parallel in sequence.
In this application, converter valve quadruple valve tower based on thyristor, when the valve module number is the odd in the single valve, set up the intermediate level in the intermediate position of a plurality of valve layers, female the arranging switching to the neutral direct current bus of quadruple valve through middle switching, bottom shield cover and top shield cover are set up respectively at the bottom and the top of a plurality of valve layers, female arranging the high pressure and the low pressure direct current bus of arranging the quadruple valve through first switching and the female arranging of second switching, thereby arrange two interchange inlet wires and three direct current inlet wire of quadruple valve tower in the homonymy of valve tower.
Through setting up the intermediate level, need not to alternate switching generating line in valve tower space, consequently avoided leading to the problem that the clean distance of valve tower internal insulation reduces because of switching generating line introduces, owing to simplified valve tower internal line, it is also more convenient to overhaul valve tower inside moreover.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for a person skilled in the art to obtain other drawings based on these drawings without exceeding the protection scope of the present application.
Fig. 1 is a schematic overall structure diagram according to an embodiment of the present application.
Fig. 2 is a schematic view of the structure of a single valve layer in fig. 1.
Fig. 3 is a schematic structural diagram of an intermediate layer according to an embodiment of the present application.
Fig. 4 is another schematic structural diagram of an intermediate layer according to an embodiment of the present application.
Fig. 5 is a schematic view of the bottom shield of fig. 1.
Fig. 6 is a schematic view of the top shield of fig. 1.
In the figure, 1, valve layer; 11. a valve module; 12. connecting a busbar; 2. an intermediate layer; 21. a neutral direct current outlet interface; 22. the intermediate switching busbar; 3. a bottom shield; 31. a first straight line outlet interface; 32. a first switching busbar; 4. a top shield can; 41. a second direct current outlet interface; 42. a second switching busbar; 51. a first ac inlet port; 52. a second ac inlet port; 6. provided is a valve arrester.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, not all, of the embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In order to facilitate understanding of the technical solution of the present application, a brief description is first given of the wiring of a thyristor-based converter valve tower. The switching busbar is arranged in two shielding cases above and below the valve tower respectively, and the three interfaces can be arranged on the same side. For a quadruple valve tower, two alternating current inlet wire interfaces and three direct current outlet wire interfaces are needed, so that the requirements can not be met only through the shielding case, and the form of inserting the adapter buses in the valve tower is adopted, so that the conditions are met, but the insulation clear distance in the valve tower is influenced by the staggered arrangement of the adapter buses, and the maintenance work in the valve tower is also influenced.
Referring to fig. 1, a quadruple valve tower for thyristor converter valves disclosed in the embodiments of the present application is composed of four groups of single valves. Each single valve comprises M valve modules 11, wherein M is an odd number, and two valve modules 11 form one valve layer 1, so that the number of the valve layers 1 formed by four groups of single valves is 2M.
Referring to fig. 1, in an alternative embodiment of the present application, if M is 3, the number of the valve layers 1 is 6, and the present application further includes an intermediate layer 2 disposed between the valve layers 1, a bottom shield 3 disposed at the bottom of the valve layer 1 at the bottom, and a top shield 4 disposed at the top of the valve layer 1 at the top.
Referring to fig. 1 and 2, each valve layer 1 includes two valve modules 11 connected in series and a connecting busbar 12 arranged at an end of each valve module 11, and the upper and lower adjacent valve layers 1 are connected in series through the connecting busbar 12.
Referring to fig. 1, 3, and 4, the intermediate layer 2 is located at the center of the plurality of valve layers 1, and the number of valve layers 1 on both upper and lower sides of the intermediate layer 2 is equal, and each of the valve layers 1 is 3. A neutral direct current outlet port 21 is fixedly arranged in the middle of one side edge of the middle layer 2, a middle switching busbar 22 is arranged in the middle layer 2, one end of the middle switching busbar 22 is connected with the connecting busbars 12 of the upper and lower adjacent valve layers 1 respectively, and the other end of the middle switching busbar 22 is connected with the neutral direct current outlet port 21.
Referring to fig. 1 and 5, a first straight outflow line interface 31 is fixedly disposed in the middle of one side edge of the bottom shielding case 3, and optionally, a first switching busbar 32 is disposed in the bottom shielding case 3, one end of the first switching busbar 32 is connected to the connecting busbar 12 of the upper side valve layer 1, and the other end is connected to the first straight outflow line interface 31.
Referring to fig. 1 and 6, a second dc outlet port 41 is fixedly disposed in the middle of one side edge of the top shield 4, and optionally, a second switching busbar 42 is disposed in the top shield 4, one end of the second switching busbar 42 is connected to the connecting busbar 12 of the lower side valve layer 1, and the other end is connected to the second dc outlet port 41.
Referring to fig. 1, a first ac incoming line interface 51 is provided between the top shield 4 and the middle layer 2, and a second ac incoming line interface 52 is provided between the bottom shield 3 and the middle layer 2. For convenience of description, the valve layer 1 at the center among the M valve layers 1 between the middle layer 2 and the top shield 4 or the bottom shield 3 is referred to as a middle valve layer, for example, in the embodiment of the present application, there are three valve layers 1 above the middle layer 2, the second is the middle valve layer from top to bottom, and if M is 5, the third is the middle valve layer. The first ac inlet line interface 51 and the second ac inlet line interface 52 are connected to the middle valve layers on the upper and lower sides of the middle layer 2.
Through the arrangement of the middle switching busbar 22 in the middle layer 2, the arrangement of the first switching busbar 32 in the bottom shielding case 3 and the arrangement of the second switching busbar 42 in the top shielding case 4, the first alternating current inlet wire interface, the second alternating current inlet wire interface, the first direct current outlet wire interface, the second direct current outlet wire interface and the neutral direct current outlet wire interface can be positioned at the same side of the valve tower.
For a thyristor-based converter valve quadruple valve tower, when the number of valve modules in a single valve is odd, a middle layer 2 is arranged at the middle position of a plurality of valve layers 1, a neutral direct-current bus of the quadruple valve is switched through a middle switching busbar 22, a bottom shielding cover 3 and a top shielding cover 4 are respectively arranged at the bottom and the top of the valve layers 1, a high-voltage direct-current bus and a low-voltage direct-current bus of the quadruple valve are switched through a first switching busbar 32 and a second switching busbar 42, and therefore two alternating-current inlet ports and three direct-current inlet ports of the quadruple valve tower are arranged at the same side of the valve tower.
Through setting up intermediate level 2, need not to alternate switching generating line in valve tower space, consequently avoided leading to the problem that valve tower internal insulation net distance reduces because of switching generating line introduces, owing to simplified valve tower internal line, it is also more convenient to overhaul valve tower inside moreover.
According to some embodiments of the present disclosure, the intermediate switching bus bar 22 may be arranged in the following two ways:
referring to fig. 3, two intermediate switching busbars 22 are provided, one end of each of the two intermediate switching busbars 22 is connected to the neutral dc outlet port 21 after being short-circuited, and the other end of each of the two intermediate switching busbars 22 is connected to the connecting busbars 12 of the upper and lower adjacent valve layers 1.
Referring to fig. 4, one intermediate switching busbar 22 is provided, one end of the intermediate switching busbar 22 is connected to the neutral dc outlet port 21, and the connecting busbars 12 of the upper and lower adjacent valve layers 1 are connected to the other end of the neutral dc outlet port 21.
In the two modes, the two intermediate switching busbars 22 are arranged to correspond to the connecting busbars 12 of the upper and lower adjacent valve layers 1 respectively, and the connecting busbars 12 of the upper and lower adjacent valve layers 1 are distributed on different sides in space, so that wiring is more convenient. And the single intermediate switching busbar 22 needs fewer wires, so that the material is saved. In practical application, the method can be specifically selected according to space requirements and cost.
Optionally, when the mode of providing two intermediate switching busbars 22 is adopted, the two intermediate switching busbars 22 are arranged in parallel and distributed on different sides of the intermediate layer 2, and the purpose of the mode is to correspond to the joints of the upper and lower connecting busbars 12, so that the wiring is facilitated.
Referring to fig. 1, as an optional technical solution of the present application, the present application further includes four valve lightning arresters 6, where the four valve lightning arresters and four groups of single valves are sequentially arranged in parallel.
Referring to fig. 5, as an alternative solution of the present application, the first switching bus bar 32 is disposed at a middle position of the bottom shield 3, and corresponds to the first dc line interface 31. The purpose is to shorten the wiring path and save the wires. Of course, in practical applications, the first transfer bus bar 32 may be disposed at the side edge of the bottom shielding can 3 under the influence of other electrical components in the bottom shielding can 3.
Referring to fig. 6, as an optional technical solution of the present application, similarly, the second switching busbar 42 is disposed at a middle position of the top shield 4, and corresponds to the second dc outlet port 41. The purpose is also to shorten the wiring path and save the wires. Of course, in practical applications, the second switching bus bar 42 may be disposed at the side edge of the top shielding can 4 under the influence of other electrical components in the top shielding can 4.
Optionally, in the present application, the first switching bus bar 32 may be disposed in the bottom shielding case 3 in a supporting manner or a suspending manner, and the second switching bus bar 42 may be disposed in the top shielding case 4 in a supporting manner or a suspending manner.
Alternatively, the quadruple valve towers in the present application may employ either suspended or supported valve towers.
The embodiments of the present application are described in detail above. The principle and the implementation of the present application are explained herein by applying specific examples, and the above description of the embodiments is only used to help understand the technical solutions and the core ideas of the present application. Therefore, the person skilled in the art should, according to the idea of the present application, change or modify the embodiments and applications of the present application based on the scope of protection of the present application. In view of the above, the description should not be taken as limiting the application.
Claims (10)
1. A thyristor converter valve quadruple valve tower, comprising:
the four groups of single valves form a plurality of valve layers, each group of single valves comprises odd valve modules, each valve layer comprises two valve modules which are connected in series into a whole, and adjacent valve layers are connected in series through a connecting bus;
the valve layer number of the upper side and the lower side of the middle layer is equal, one end of the middle layer is provided with a neutral direct current outlet interface, a middle switching busbar is arranged in the middle layer, one end of the middle switching busbar is connected with the adjacent valve layers respectively, and the other end of the middle switching busbar is connected with the neutral direct current outlet interface;
the bottom shielding cover is arranged at the bottom of the valve layer at the bottommost layer, one end of the bottom shielding cover is provided with a first straight-flow line interface, and the first straight-flow line interface is connected with the valve layer at the upper side;
the top shielding cover is arranged at the top of the topmost valve layer, one end of the top shielding cover is provided with a second direct current outlet interface, and the second direct current outlet interface is connected with the valve layer at the lower side;
a first alternating current inlet wire interface is arranged between the middle layer and the top shielding cover and is connected with a middle valve layer between the middle layer and the top shielding layer; a second alternating current inlet wire interface is arranged between the middle layer and the bottom shielding cover and is connected with a middle valve layer between the middle layer and the bottom shielding layer; the first alternating current inlet wire interface, the second alternating current inlet wire interface, the first direct current outlet wire interface, the second direct current outlet wire interface and the neutral direct current outlet wire interface are located on the same side of the valve tower.
2. The thyristor converter valve quadruple valve tower of claim 1, wherein: the two intermediate switching busbars are arranged, one end of each intermediate switching busbar is connected with the neutral direct-current outlet interface after being in short circuit, and the other end of each intermediate switching busbar is connected with the valve layers on the upper side and the lower side respectively.
3. The thyristor converter valve quadruple valve tower of claim 2, wherein: two intermediate switching busbars are arranged in parallel and distributed on different sides of the intermediate layer.
4. The thyristor converter valve quadruple valve tower of claim 1, wherein: the middle switching bus bar is provided with one, one end of the middle switching bus bar is connected with the neutral direct current outlet interface, and the other end of the middle switching bus bar is connected with the upper valve layer and the lower valve layer.
5. The thyristor converter valve quadruple valve tower of claim 1, wherein: a first switching busbar is arranged in the bottom shielding cover, one end of the first switching busbar is connected with the upper valve layer, and the other end of the first switching busbar is connected with the first straight line outlet;
the first switching busbar is arranged in the middle of the bottom shielding case.
6. The thyristor converter valve quadruple valve tower of claim 1, wherein: a second switching busbar is arranged in the top shielding cover, one end of the second switching busbar is connected with the valve layer below the second switching busbar, and the other end of the second switching busbar is connected with the second direct-current outlet interface;
the second switching busbar is arranged in the middle of the top shielding case.
7. Thyristor converter valve quadruple valve tower according to claim 5, characterized in that: the first switching busbar is arranged in the bottom shielding cover in a supporting mode or a suspension mode.
8. The thyristor converter valve quadruple valve tower of claim 6, wherein: the second switching busbar is arranged in the top shielding cover in a supporting mode or a suspension mode.
9. The thyristor converter valve quadruple valve tower of claim 1, wherein: the valve tower is a suspension type or support type valve tower.
10. The thyristor converter valve quadruple valve tower of claim 1, further comprising: and the valve lightning arrester is sequentially connected with the four groups of single valves in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121320113.1U CN215871207U (en) | 2021-06-11 | 2021-06-11 | Quadruple valve tower of thyristor converter valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121320113.1U CN215871207U (en) | 2021-06-11 | 2021-06-11 | Quadruple valve tower of thyristor converter valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215871207U true CN215871207U (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121320113.1U Active CN215871207U (en) | 2021-06-11 | 2021-06-11 | Quadruple valve tower of thyristor converter valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215871207U (en) |
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2021
- 2021-06-11 CN CN202121320113.1U patent/CN215871207U/en active Active
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