CN216616558U - Wall bushing fire compartment wall structure for transformer substation - Google Patents
Wall bushing fire compartment wall structure for transformer substation Download PDFInfo
- Publication number
- CN216616558U CN216616558U CN202123211354.5U CN202123211354U CN216616558U CN 216616558 U CN216616558 U CN 216616558U CN 202123211354 U CN202123211354 U CN 202123211354U CN 216616558 U CN216616558 U CN 216616558U
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- China
- Prior art keywords
- wall
- fire
- insulation board
- wall bushing
- transformer substation
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 51
- 239000010959 steel Substances 0.000 claims abstract description 51
- 239000004964 aerogel Substances 0.000 claims abstract description 42
- 238000009413 insulation Methods 0.000 claims abstract description 37
- 239000004568 cement Substances 0.000 claims abstract description 33
- 239000011094 fiberboard Substances 0.000 claims abstract description 31
- 238000005192 partition Methods 0.000 claims abstract description 27
- 239000011819 refractory material Substances 0.000 claims abstract description 8
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- 239000000565 sealant Substances 0.000 claims abstract description 6
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 5
- 230000009970 fire resistant effect Effects 0.000 claims description 12
- 238000010276 construction Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 239000011490 mineral wool Substances 0.000 claims description 4
- 239000010451 perlite Substances 0.000 claims description 2
- 235000019362 perlite Nutrition 0.000 claims description 2
- 238000009826 distribution Methods 0.000 abstract description 12
- 239000000463 material Substances 0.000 description 13
- 238000009434 installation Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Abstract
The utility model discloses a wall bushing fire partition wall structure for a transformer substation, which comprises a fire wall body, a pre-buried flat steel frame, an angle steel frame, a square tube cross beam, a cement fiberboard, an aerogel insulation board, a wall bushing and the like. The wall-through sleeve is bolted with the cross beam of the square tube and penetrates through the fireproof wall body from outside to inside, a gap between the aerogel insulation board and the wall-through sleeve is bonded by inorganic fireproof sealant with the fireproof temperature of more than or equal to 800 ℃, the aerogel insulation board is positioned on the inner side of the fireproof wall body, and the gap between the aerogel insulation board and the square tube is bonded by fireproof structural adhesive with the fireproof temperature of more than or equal to 800 ℃; the gap between the hole opening and the aerogel insulation board is filled with a refractory material; the cement fiberboard is positioned on the outer side of the fireproof wall body, and a gap between the cement fiberboard and the aerogel insulation board is bonded by bonding mortar. The utility model compresses the distance between the main transformer and the distribution room, improves the fire resistance limit of the fire partition wall and better protects the interior of the fire partition wall.
Description
Technical Field
The utility model belongs to the technical field of fire walls of transformer substations, and particularly relates to a wall bushing fire partition wall structure for a transformer substation.
Background
At present, a distribution device room in a transformer substation is generally connected with an outdoor main transformer through a busbar, and a wall bushing partition plate for allowing the busbar to enter the distribution device room generally adopts a steel plate. However, with the development of the general design of the transformer substation, the occupied area of the transformer substation is smaller and smaller, and the arrangement in the transformer substation is more and more compact, so that the distance between an outdoor transformer and a distribution equipment room is closer and closer, and the 10-meter fireproof distance required by 11.1.5 in the fire power plant and transformer substation design fireproof specification (GB 50229-2019) is difficult to meet. According to the requirement of 11.2.1 in the design fire standard of a thermal power plant and a transformer substation (GB 50229-2019), a wall body on the side of a power distribution unit room needs to be provided with a fire wall, and when electrical equipment such as an oil immersed transformer and the like needs to be provided with an electrical sleeve to penetrate through the fire wall in the process, a cable hole in the fire wall needs to be blocked by adopting a cable fire-proof blocking material or a fire-proof blocking component with the fire resistance limit of 3 h. Based on this, the technology of plugging the hole again after the steel plate or the steel plate and the sleeve which are generally adopted in China at present is difficult to meet the requirement of the fire resistance limit.
General design has compressed the distance that becomes main transformer and distribution device room, and the distance of standing transformer apart from the distribution room is less than 5 meters for some, but has still used the wall bushing installation steel sheet that has adopted all the time, and the steel sheet is fire-resistant and heat-proof quality weak, far unsatisfied 3 h's fire endurance limit requirement. Therefore, the construction process of other partition plates which meet the fireproof requirement needs to be researched urgently, and an economical and reasonable 35kV and 10kV transformer substation distribution room wall bushing fireproof technology is formed, so that the fire safety hidden danger is eliminated, and the serious casualties and economic loss are avoided.
Disclosure of Invention
The utility model aims to provide a design scheme of a through-wall sleeve fire partition wall for a transformer substation, which changes the through-wall sleeve wall penetrating mode, adopts a new wall fire-proof installation process, selects a fire-proof material with higher fire-resistant limit to fill the wall, and uses a fire-proof sealant to block a gap between the material and a member, thereby meeting the fire-proof requirement while meeting the safety distance and solving the problems.
The utility model is realized by adopting the following technical scheme:
a through-wall sleeve fire partition wall structure for a transformer substation comprises a fire wall body and a through-wall sleeve, wherein a reserved hole is formed in the fire wall body during construction; a flat steel frame is pre-embedded in the periphery of the reserved hole, an angle steel frame is welded in the flat steel frame, two square pipe cross beams are welded in the angle steel frame in parallel, perforated ear plates for connecting wall-through sleeves are welded on the square pipe cross beams, and each wall-through sleeve is correspondingly connected to the upper perforated ear plate and the lower perforated ear plate through bolts; the wall bushing periphery that is located in the reservation hole is equipped with the aerogel heated board, it is equipped with cement fiberboard respectively to be located aerogel heated board both sides in the reservation hole.
Preferably, the gaps between the aerogel insulation boards and the square tube beams are bonded by fireproof structural adhesive with the fire-resistant temperature of more than or equal to 800 ℃.
Further preferably, gaps between the aerogel insulation board and the reserved holes are filled with refractory materials.
Preferably, the gap between the aerogel insulation board and the wall bushing is bonded by inorganic fireproof sealant with the fire-resistant temperature of more than or equal to 800 ℃.
Further preferably, the cement fiber board and the aerogel insulation board are bonded by bonding mortar. And the gap between the cement fiberboard plate and the reserved hole is filled with a refractory material.
Further preferably, the aerogel insulation board is formed by splicing an upper aerogel insulation board and a lower aerogel insulation board.
Preferably, the cement fiberboard is formed by splicing an upper cement fiberboard and a lower cement fiberboard.
When the fireproof wall is applied, a hole is reserved during construction of the fireproof wall body, the size of the hole is determined according to the requirements of a transformer substation, and a flat steel frame is pre-embedded around the hole of the fireproof wall body to serve as a keel supporting hole; four angle steels are welded around the embedded flat steel at the middle position of the wall hole to serve as an angle steel frame, and the size of each angle steel is determined according to the size of the hole; two parallel square tube cross beams are welded at two vertical angle steels of the angle steel, the square tube is disconnected with the welding edge of the angle steel, and copper is welded at the disconnected position to avoid forming eddy current; one side of the square pipe is welded with an ear plate with holes so as to be conveniently bolted with the wall bushing, and the size of the reserved holes of the ear plate is determined according to the on-site goods size of the wall bushing; the installation distance of the two square pipes is determined according to the on-site goods size of the wall bushing; the wall-through sleeve is bolted with the ear plate with holes on the square pipe through the bolt holes on the connecting rib plate of the wall-through sleeve, the wall-through sleeve penetrates through the fireproof wall from outside to inside, the aerogel insulation board is positioned on the inner side of the holes of the fireproof wall, and a gap between the aerogel insulation board and the square steel pipe is bonded by fireproof structural adhesive with the fireproof temperature of more than or equal to 800 ℃; the gap between the aerogel insulation board and the wall bushing is bonded by inorganic fireproof sealant with the fire-resistant temperature of more than or equal to 800 ℃; the gap between the hole opening and the aerogel insulation board is filled with a refractory material; the cement fiberboard is positioned on the outer side of the fireproof wall body, and a gap between the cement fiberboard and the aerogel insulation board is bonded by bonding mortar.
Compared with the prior art, the through-wall sleeve fire partition for the transformer substation has the advantages that: compared with the prior steel plate bolting, the wall bushing is bolted with the square tube beam, so that the filling thickness of the fireproof material in the fireproof partition wall is increased; the steel plate has weak fireproof and heat-insulating properties, and the square tube is used for replacing the steel plate, so that potential safety hazards caused by the steel plate are avoided, and the degree of disasters is effectively reduced; the wall bushing is selected according to the voltage of a transformer substation and the design thickness of a wall body, and the minimum safe static distance from an outdoor live part to a wall body grounding part meets the 11.1.5 requirement in the design fire protection specification of a thermal power plant and the transformer substation (GB 50229-2019), so that the distance between a main transformer and a power distribution room is reduced; the fireproof partition wall is filled with fireproof materials with higher fire-resistant limit, and gaps between the fireproof materials and the components are bonded by fireproof structural adhesive, so that the fire in the flammable area is comprehensively and effectively prevented from spreading from the gaps, the fire-resistant limit of the fireproof partition wall is improved, and the interior of the fireproof partition wall is better protected; the wall bushing fire partition is internally filled with materials, the outer layer material is consistent with the outer layer material of the main body, and the surface of the wall body is flat and attractive; the utility model designs the fire partition wall of the wall bushing for the transformer substation, compresses the distance between a main transformer and a distribution device room, meets the construction process of partition plates made of other materials with fire protection requirements, forms an economical and reasonable fire protection technology for the wall bushing of the distribution room of the transformer substation of 35kV and 10kV, eliminates fire safety hidden dangers, and avoids causing serious casualties and economic losses.
The utility model has reasonable design, compresses the distance between the main transformer and the distribution room, improves the fire-resistant limit of the fire-proof partition wall, better protects the interior of the fire-proof partition wall and has good practical application value.
Drawings
Fig. 1 shows a schematic view of a CWW-24/4000 type wall bushing.
Fig. 2 shows a side view of a wall bushing.
Fig. 3 shows a side view of the installation of the square tubular beam (section a-a in fig. 4).
Fig. 4 shows a front view of the installation of the square tubular beam.
Fig. 5 shows a schematic view of a wall bushing installation.
Fig. 6 shows a schematic view of a fire-resistant installation of a wall bushing.
Figure 7 shows a schematic view of a cement fiberboard.
Figure 8 shows a schematic view of an aerogel insulation board.
Fig. 9 shows a schematic view of the installation of the fire barrier.
In the figure: 1-fireproof wall body, 2-flat steel frame, 3-angle steel frame, 4-square tube beam, 5-cement fiberboard, 6-aerogel insulation board, 7-wall bushing, 8-perforated ear plate, 9-reserved hole, 10-connecting rib plate and 11-bolt.
Detailed Description
In order to more clearly illustrate the technical solution in the embodiment of the present invention, the drawings required to be used in the description of the embodiment will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, without creative efforts, the wall filling material, the gap blocking material, the installation position of the wall bushing, and the like may also be changed according to actual requirements, and other drawings are obtained according to the drawings, and the 10KV wall bushing fire protection design is taken as an example, and the following describes specific embodiments of the present invention in detail with reference to the drawings.
The utility model provides a transformer substation is with wall bushing fire compartment wall structure, includes parts such as fire wall, pre-buried band steel, angle steel, square steel pipe, cement fiberboard, aerogel heated board, fire resistive construction glue, inorganic fire prevention sealed glue, wall bushing.
As shown in fig. 3, 4, 5, 6 and 9, a reserved hole 9 is formed in the fireproof wall 1 during construction, a flat steel frame 2 is pre-embedded in the periphery of the reserved hole 9, an angle steel frame 3 is welded in the flat steel frame 2, two square pipe cross beams 4 are welded in the angle steel frame 3 in parallel, perforated ear plates 8 used for connecting wall-through sleeves 7 are welded on the square pipe cross beams 4, and each wall-through sleeve 7 is correspondingly connected to the upper perforated ear plate 8 and the lower perforated ear plate 8 through bolts 11; be located the wall bushing 7 periphery in reserving hole 9 and be equipped with aerogel heated board 6, be located 6 both sides of aerogel heated board in reserving hole 9 and be equipped with cement fiberboard 5 respectively.
During specific implementation, the hole 9 is reserved during construction of the fireproof wall body 1, the size of the hole 9 is determined according to the requirements of a transformer substation, and the size of the hole is 700 x 1700mm and is used for three wall bushing to penetrate through. After embedding flat steel around the hole 9 of the fireproof wall body 1, a flat steel frame 2 is formed to serve as a keel for supporting the hole 9, wherein the width of the flat steel is about 107mm in the embodiment; four angle steels are welded around the embedded flat steel in the middle of the hole to form an angle steel frame 3, and the size of the angle steel frame is determined according to the size of the hole; two square steel pipes of two vertical angle steel departments parallel welding of angle steel frame 3 are as square pipe crossbeam 4, and square steel pipe size is 50X 5mm in this embodiment, and square pipe crossbeam 4 axis intersects perpendicularly with 1 axis of fire wall, and square steel pipe should be in the disconnection with angle steel welding edge position, and copper is welded to the disconnection department to avoid forming the vortex. One side of the square steel pipe is welded with a perforated ear plate so as to be bolted with a connecting rib plate 10 of the wall bushing 7, and the size of the reserved hole of the ear plate is determined according to the on-site arrival size of the wall bushing 9. In this embodiment, three wall bushing 7 are disposed in the reserved hole 9, three groups of perforated ear plates are disposed between the upper and lower square tubular beams 4, each group is 4, and the perforated ear plates are connected to a connecting rib plate 10 (in this embodiment, the size is 290 × 290 mm) of one wall bushing 7 through a bolt 11. The installation interval of the square tube beam 4 is determined according to the on-site arrival size of the wall bushing 9. The type of the wall bushing 9 is determined according to the voltage of the substation and the thickness of the wall, and is generally a CWW-24/4000 type wall bushing (as shown in fig. 1 and 2), and the wall bushing penetrates through the fireproof wall 1 from outside to inside.
Aerogel heated board 6 is located the reservation hole 9 of fire wall 1 inboard, and aerogel heated board 6 thickness is 107mm, and the size is 700 x 1700 mm. As shown in fig. 8, the aerogel insulation board 6 is formed by splicing an upper block and a lower block, and three holes for the wall bushing to pass through are reserved. Cutting according to the size of goods on site, and bonding a gap between the aerogel insulation board 6 and the square tube beam 4 by using fireproof structural adhesive with the fireproof temperature of more than or equal to 800 ℃; and the gap between the hole and the aerogel insulation board 6 is filled with refractory materials. The gap between the aerogel insulation board 6 and the wall bushing 7 is bonded by inorganic fireproof sealant with the fire-resistant temperature of more than or equal to 800 ℃. In addition, aerogel heated board 6 can also be inorganic fire prevention insulation panels such as rock wool heated board, expanded perlite heated board, mineral wool heated board, foaming cement heated board.
The cement fiber board 5 is positioned on the outer side of the fireproof wall body 1, the thickness of the cement fiber board 5 is 14mm, and the size of the cement fiber board is 700 multiplied by 1700 mm. As shown in fig. 7, the cement fiberboard 5 is formed by splicing an upper cement fiberboard and a lower cement fiberboard, and three holes for the wall bushing to pass through are reserved. Cutting according to the size of the goods on site, bonding the gaps between the cement fiber board 5 and the aerogel insulation board 6 by using bonding mortar, and plugging the gaps between the hole and the cement fiber board 5 by using a refractory material. Moreover, the cement fiber board is flush with the outer side of the wall body, and is attractive.
The iron parts used outdoors are galvanized or brushed with one red lead and two antirust paints, and the iron parts used indoors are painted with one red lead and one antirust paint.
The above description is only exemplary of the present invention and is not intended to limit the scope of the present invention, which includes all equivalent structures, equivalent processes, material changes, or any other related fields of technology that can be directly or indirectly utilized by the present specification.
Claims (10)
1. A wall bushing fire partition wall structure for a transformer substation comprises a fire wall body (1) and a wall bushing (7), wherein a reserved hole (9) is formed in the fire wall body (1) during construction; the method is characterized in that: a flat steel frame (2) is pre-embedded in the periphery of the reserved hole (9), an angle steel frame (3) is welded in the flat steel frame (2), two square pipe cross beams (4) are welded in the angle steel frame (3) in parallel, perforated ear plates (8) used for connecting wall-penetrating sleeves (7) are welded on the square pipe cross beams (4), and each wall-penetrating sleeve (7) is correspondingly connected to the upper perforated ear plate and the lower perforated ear plate (8) through bolts; be located wall bushing (7) periphery in reservation hole (9) and be equipped with aerogel heated board (6), it is equipped with cement fiberboard (5) respectively to be located aerogel heated board (6) both sides in reservation hole (9).
2. The wall bushing fire partition structure for the transformer substation of claim 1, characterized in that: and the gaps between the aerogel insulation board (6) and the square tube cross beam (4) are bonded by fireproof structural adhesive with the fire-resistant temperature of more than or equal to 800 ℃.
3. The wall bushing fire partition structure for the transformer substation of claim 2, characterized in that: gaps between the aerogel insulation boards (6) and the reserved holes (9) are filled with refractory materials; and the gap between the cement fiber board (5) and the reserved hole (9) is filled with a refractory material.
4. A wall bushing fire bulkhead structure for transformer substation according to claim 3, characterized in that: and the gap between the aerogel insulation board (6) and the wall bushing (7) is bonded by inorganic fireproof sealant with the fire-resistant temperature of more than or equal to 800 ℃.
5. The wall bushing fire partition structure for the transformer substation of claim 4, wherein: and the cement fiberboard (5) and the aerogel insulation board (6) are bonded by adopting bonding mortar.
6. The wall bushing fire partition structure for the transformer substation of claim 1, characterized in that: the aerogel insulation board (6) is formed by splicing an upper block and a lower block.
7. The wall bushing fire partition structure for the transformer substation of claim 1, characterized in that: the cement fiberboard (5) is formed by splicing an upper cement fiberboard and a lower cement fiberboard.
8. The wall bushing fire partition structure for the transformer substation of claim 6, wherein: the thickness of the aerogel insulation board (6) is 107 mm.
9. The wall bushing fire partition structure for the transformer substation of claim 7, wherein: the thickness of the cement fiberboard (5) is 14 mm.
10. The wall bushing fire partition structure for the transformer substation of claim 1, characterized in that: the aerogel insulation board (6) is replaced by a rock wool insulation board, an expanded perlite insulation board, a mineral wool insulation board or a foamed cement insulation board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123211354.5U CN216616558U (en) | 2021-12-21 | 2021-12-21 | Wall bushing fire compartment wall structure for transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123211354.5U CN216616558U (en) | 2021-12-21 | 2021-12-21 | Wall bushing fire compartment wall structure for transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216616558U true CN216616558U (en) | 2022-05-27 |
Family
ID=81704729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123211354.5U Expired - Fee Related CN216616558U (en) | 2021-12-21 | 2021-12-21 | Wall bushing fire compartment wall structure for transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216616558U (en) |
-
2021
- 2021-12-21 CN CN202123211354.5U patent/CN216616558U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220527 |