CN212033707U - Extra-high voltage converter station converter transformer main transformer bushing wall penetrating scheme and hole plugging structure - Google Patents
Extra-high voltage converter station converter transformer main transformer bushing wall penetrating scheme and hole plugging structure Download PDFInfo
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- CN212033707U CN212033707U CN202020784579.6U CN202020784579U CN212033707U CN 212033707 U CN212033707 U CN 212033707U CN 202020784579 U CN202020784579 U CN 202020784579U CN 212033707 U CN212033707 U CN 212033707U
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- 230000000149 penetrating effect Effects 0.000 title claims description 9
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000004880 explosion Methods 0.000 abstract description 13
- 238000009434 installation Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000005457 optimization Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 206010066054 Dysmorphism Diseases 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to an extra-high voltage converter station change current becomes main sleeve pipe wall-penetrating scheme and entrance to a cave block structure that becomes, a serial communication port, including special-shaped entrance to a cave, this special-shaped entrance to a cave contains two entrances of the left and right sides that correspond with two sleeves, and wherein, entrance to a cave extension width and each sleeve pipe diameter phase-match, entrance to a cave extension length and each sleeve pipe projection length phase-match on the entrance to a cave plane. The positions of the special-shaped openings except the sleeve are respectively filled with a plurality of fireproof devices. An explosion-proof plate is arranged along the outer contour of the special-shaped opening. Therefore, the stability of the plugging structure is improved, the impact resistance, the fire resistance and the explosion resistance of the plugging system are greatly improved, the safety of the converter transformer system is enhanced, and the risk of explosion accidents of the extra-high voltage converter transformer is reduced. Meanwhile, the plugging material, the explosion-proof material and the installation workload are saved.
Description
Technical Field
The utility model relates to an extra-high voltage converter station change of current becomes main sleeve pipe wall-penetrating scheme and entrance to a cave block structure.
Background
The valve hall of the high-voltage current converter station is a totally-enclosed large-scale shielding chamber (as shown in fig. 1), and the radiated electromagnetic field generated by the converter system in the valve hall can be ensured to be limited in the valve hall without causing electromagnetic interference to sensitive equipment outside the valve hall. The lead of the converter transformer of the high-voltage converter station needs to enter the valve hall through the wall bushing to be connected with the converter system, and meanwhile, in order to ensure that the radiation electromagnetic field inside the valve hall cannot leak out because the wall bushing passes through the valve hall, plugging materials need to be filled between the wall bushing and a metal plate of the valve hall or a fireproof wall with shielding property.
At present, most of the built firewall on the valve hall side of the ultra-high voltage converter station in China adopts a conventional plugging opening, the size is large, the structural stability is poor, and a plugging system of the valve hall adopts a form of an explosion door and conventional large-size plugging. For example, when plugging is performed, as in the converter transformer bushing arrangement diagram shown in fig. 2, the bottoms of 2 bushings are connected with a base, and the base can drive the bushings to move and penetrate through a wall. Typically, the number of converter variants determines the overall parameters of casing position, height, angle, etc. The large round head at the top of the cannula is the detachable part 500. Depending on the dimensional parameters of the converter, it is now common to use a form of a pre-blocked hole 400 as shown in fig. 3, i.e. a 8800mm 7370mm rectangular space is pre-reserved in the firewall and 2 sleeves are pushed from the inside of the station to the outside of the station. Wherein the size of the rectangular vacant space is determined according to the position of the maximum width of the sleeve. After the rectangular vacant sites are pushed in place, the rectangular vacant sites are spliced and sealed by plugging materials, and gaps and side seams are sealed.
The technical scheme of the conventional converter transformer bushing wall-penetrating hole plugging structure has the biggest disadvantage that the size of the opening of the hole of the valve hall is too large, and the size of the opening reaches about 6990mm by 7688mm by taking a high-end valve hall as an example. However, in practice, the experience plugging system for fire disaster of converter transformer explosion accident requires a certain anti-explosion impact capability on one hand, and also ensures good air tightness, water tightness and fire resistance of plugging on the other hand. The excessive opening size in the prior art makes the shutoff extremely difficult, so that, many extra-high voltage converter transformer flow explosion accidents happen in China, wherein the shutoff of the valve hall side firewall is all destroyed, even the accident of valve hall collapse caused by the shutoff is destroyed, and the loss is serious.
The utility model discloses a set up special-shaped entrance to a cave with reference to the actual movement track of current conversion transformer bushing wall-piercing, maximum optimization trompil size, very big size and the span of block structure that has reduced the shutoff have improved the stability of structure and the shock resistance of block system. Therefore, the risk of explosion of the converter transformer caused by the fact that plugging is damaged is reduced, and serious personnel and economic losses are avoided.
SUMMERY OF THE UTILITY MODEL
The utility model solves the technical problem that: a special-shaped hole is formed based on the actual motion track of the converter transformer bushing wall penetration, and the hole opening size is optimized to the greatest extent. And filling the fire-proof plate and/or the fire-proof material in the other part except the position corresponding to the sleeve in the hole, and arranging an explosion-proof device outside the hole chamber for protecting the fire-proof material. Therefore, the stability of the plugging structure is improved, the impact resistance, the fire resistance and the explosion resistance of the plugging system are greatly improved, the safety of the converter transformer system is enhanced, and the risk of explosion accidents of the extra-high voltage converter transformer is reduced.
The utility model discloses the technical means who adopts do: the utility model provides an extra-high voltage converter station change of current transformer main transformer bushing scheme and entrance to a cave block structure, its characterized in that includes special-shaped entrance to a cave, contains two entrance to a cave of controlling that correspond with two sleeve pipes, wherein, entrance to a cave extension width and each sleeve pipe diameter phase-match, entrance to a cave extension length and each sleeve pipe projection length phase-match on the entrance to a cave plane.
The positions of the special-shaped openings except the sleeve pipes are filled with a plurality of fireproof devices. The fire protection device is a fire protection plate or a fire protection material. An explosion-proof plate is arranged along the outer contour of the special-shaped opening.
The special-shaped hole comprises a first hole, a second hole and a bottom hole. Wherein, the first opening is a rectangular opening extending along the first sleeve; the width C1 of the first opening is greater than or equal to the diameter of the first sleeve.
The second hole is a rectangular opening extending along the position of the second sleeve; the width C2 of the second opening is greater than or equal to the diameter of the second sleeve.
The first hole and the second hole are communicated through the bottom hole.
A plurality of fireproof devices are respectively filled in the first hole and the second hole along the extending direction; wherein, the length of this firebreak device matches with the width at this first entrance to a cave and this second entrance to a cave respectively.
The explosion-proof plate is laid along the outer contour of the first opening, the second opening and the bottom opening in a segmented surrounding manner.
The utility model has the advantages that: the utility model discloses an dysmorphism entrance to a cave is seted up to the actual movement track based on current conversion transformer bushing wall, maximum optimization trompil size. And filling the fire-proof plate and/or the fire-proof material in the other part except the position corresponding to the sleeve in the hole, and arranging an explosion-proof device outside the hole chamber for protecting the fire-proof material. The stability of structure and the shock resistance of shutoff system have been improved. Therefore, the risk of explosion of the converter transformer caused by the fact that plugging is damaged is reduced, and serious personnel and economic losses are avoided. The concrete beneficial effects are as follows:
(1) because the size of the plugging hole is reduced, gaps between plugging materials and the hole and gaps between plugs are greatly reduced, and the reliability of plugging sealing is improved;
(2) the plugging area is small, so the plugging engineering quantity is small, and the impact strength is improved;
(3) the plugging area is small, and a large amount of materials for plugging and the anti-explosion plate and the workload of installation are saved.
Drawings
Fig. 1 is a schematic diagram of an internal structure of a valve hall of a conventional high-pressure flow converter station.
Fig. 2 is a schematic diagram of a conventional converter transformer bushing arrangement.
Fig. 3 is a schematic structural view of a reserved plugging hole of a conventional converter transformer bushing.
Fig. 4 is the utility model discloses special-shaped entrance to a cave schematic diagram of special-shaped entrance to a cave of extra-high voltage converter station change of current transformer main transformer bushing scheme and entrance to a cave plugging structure.
Fig. 5 is the utility model discloses special-shaped entrance to a cave and change of current of special high voltage converter station change of current transformer main transformer bushing scheme and entrance to a cave plugging structure become and arrange the schematic diagram.
Fig. 6 is the utility model discloses special-shaped entrance to a cave firebreak device of special-shaped entrance to a cave fire prevention device of extra-high voltage converter station change of current transformer main transformer bushing scheme and entrance to a cave block structure arranges the schematic diagram.
Fig. 7 is the utility model discloses special-shaped entrance to a cave explosion-proof plate of special-shaped entrance to a cave wall scheme and entrance to a cave block structure is arranged to extra-high voltage converter station change of current transformer main change.
Detailed Description
As shown in fig. 4 and 5, the utility model relates to an extra-high voltage converter station change of current becomes main sleeve pipe wall-penetrating scheme and entrance to a cave block structure, a serial communication port, including special-shaped entrance to a cave 100, it contains two entrances about corresponding with two sleeves, wherein, entrance to a cave extension width and each sleeve pipe diameter phase-match, entrance to a cave extension length and each sleeve pipe projection length phase-match on the entrance to a cave plane. Specifically, the shape of the opening is matched with the movement direction and the track of each sleeve which can pass through the opening. Wherein the casing comprises a first casing 200 and a second casing 300, and is characterized in that the special-shaped opening 100 comprises a first opening 30, a second opening 40 and a bottom opening 50; wherein, the first opening 30 is a rectangular opening extending along the first sleeve 200; the width C1 of the first opening 30 is greater than or equal to the diameter of the first sleeve 200; the first opening 30 has an extension length D1; wherein, the C1 can be 1500mm, and the D1 can be 4240 mm.
The second opening 40 is a rectangular opening extending along the second sleeve 300; the width C2 of the second opening 40 is greater than or equal to the diameter of the second sleeve 300; the second opening 40 has an extension length D2; wherein, C2 can be 1700mm, D2 is 3540 mm.
The first opening 30 and the second opening 40 are communicated through the bottom opening 50; the maximum vertical height D3 from the connection between the bottom hole 50 and the second hole 40 to the bottom edge may be 2310 mm; the width C3 of the bottom hole 50 may be 1112 mm.
As shown in fig. 6, the positions of the shaped openings 100, except for the sleeves, are filled with a plurality of fire-protection devices 10. Specifically, a plurality of fireproof plates 10 are respectively filled inside along the extending direction of the first opening 30 and the second opening 40; wherein the length of the fire retardant panel 10 is matched with the width of the first hole 30 and the second hole 40, respectively, and the width of the fire retardant panel 10E 1 may be 1000 mm.
As shown in fig. 7, the explosion-proof plate 20 is laid around the outer contour of the first opening 30, the second opening 40 and the bottom opening 50 in a segmented manner; wherein the distance F1 of the opposite section of the explosion-proof plate 20 around the extension of the first hole 30 may be 4644 mm; the distance F2 between the opposite sections of the panel 20 around the extension of the second opening 40 may be 3943 mm; the heights of the two side sections of the explosion-proof plate 20 surrounding the bottom hole 50 are H3 2063mm and H4 2713mm respectively.
The arrangement size of the special-shaped hole and the explosion-proof plate can be calculated, and the plugging area is 64.85 m222.07m of plugging area compared with the prior plugging area2A reduction of about 67%. And the area of the explosion-proof plate is also 85 m2Optimization is 38 m2And the reduction is about 44%, so that the material and installation engineering quantity of the plugging and explosion-proof plate are greatly reduced. Meanwhile, the span of the explosion-proof plate is reduced from 8800mm to 1700mm and 1500mm, and under the condition of the same structure, the impact resistance of the explosion-proof plate can be greatly improved, and the impact resistance can be improved by about 26 times through the calculation of the public { (8.8/1.7) 2=5.176 × 5.175=26.8 }. Thereby reducing the risk of explosion of the converter transformer caused by the blockage being damaged.
The utility model discloses an dysmorphism entrance to a cave is seted up to the actual movement track based on current conversion transformer bushing wall, maximum optimization trompil size. And filling the fire-proof plate and/or the fire-proof material in the other part except the position corresponding to the sleeve in the hole, and arranging an explosion-proof device outside the hole chamber for protecting the fire-proof material. The stability of structure and the shock resistance of shutoff system have been improved. Therefore, the risk of explosion of the converter transformer caused by the fact that plugging is damaged is reduced, and serious personnel and economic losses are avoided.
Claims (7)
1. The extra-high voltage converter station converter transformer main transformer bushing wall penetrating scheme and the opening plugging structure are characterized by comprising a special-shaped opening (100), wherein the special-shaped opening (100) comprises a left opening and a right opening corresponding to two bushings, the extending width of the opening is matched with the pipe diameter of each bushing, and the extending length of the opening is matched with the projection length of each bushing on the plane of the opening.
2. The extra-high voltage converter station converter transformer main transformer bushing wall penetrating scheme and opening plugging structure as claimed in claim 1, wherein a plurality of fire protection devices (10) are filled in the special-shaped opening (100) except for the position of the bushing.
3. The extra-high voltage converter station converter transformer main transformer bushing wall penetrating scheme and hole plugging structure as claimed in claim 1, wherein an explosion-proof plate (20) is arranged along an outer contour of the special-shaped hole (100).
4. The extra-high voltage converter station converter transformer main transformer bushing wall penetrating scheme and hole plugging structure as claimed in claim 1, wherein the bushing comprises a first bushing (200) and a second bushing (300), wherein the special-shaped hole (100) comprises a first hole (30), a second hole (40) and a bottom hole (50);
wherein the first opening (30) is a rectangular opening extending along the first sleeve (200); the width C1 of the first hole (30) is larger than or equal to the diameter of the first sleeve (200);
the second hole (40) is a rectangular opening extending along the position of the second sleeve (300); the width C2 of the second hole (40) is larger than or equal to the diameter of the second sleeve (300);
the first opening (30) and the second opening (40) are communicated through the bottom opening (50).
5. The extra-high voltage converter station converter transformer main transformer bushing wall penetrating scheme and hole plugging structure as claimed in claim 4, wherein a plurality of fire protection devices (10) are respectively filled inside along the extending direction of the first hole (30) and the second hole (40);
wherein the length of the fire protection device (10) is matched to the width of the first opening (30) and the second opening (40), respectively.
6. The extra-high voltage converter station converter transformer main transformer bushing wall penetrating scheme and hole plugging structure as claimed in claim 4, wherein an explosion-proof plate (20) is laid around the outer contour of the first hole (30), the second hole (40) and the bottom hole (50) in a segmented mode.
7. The extra-high voltage converter station converter transformer main transformer bushing wall penetrating scheme and hole plugging structure as claimed in claim 2, wherein said fire protection device (10) is a fire protection plate or a fire protection material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020784579.6U CN212033707U (en) | 2020-05-12 | 2020-05-12 | Extra-high voltage converter station converter transformer main transformer bushing wall penetrating scheme and hole plugging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020784579.6U CN212033707U (en) | 2020-05-12 | 2020-05-12 | Extra-high voltage converter station converter transformer main transformer bushing wall penetrating scheme and hole plugging structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212033707U true CN212033707U (en) | 2020-11-27 |
Family
ID=73479864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020784579.6U Expired - Fee Related CN212033707U (en) | 2020-05-12 | 2020-05-12 | Extra-high voltage converter station converter transformer main transformer bushing wall penetrating scheme and hole plugging structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212033707U (en) |
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2020
- 2020-05-12 CN CN202020784579.6U patent/CN212033707U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |