Fireproof plugging structure for cable laying of booster station
The detachable fireproof mainboard and conduit structure solve the problem of opening holes when laying new cables, achieving low-cost, high-efficiency cable laying and fireproof effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE IT ELECTRONICS ELEVENTH DESIGN & RES INST SCI & TECHNOLOGICAL ENG
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-19
AI Technical Summary
The existing fireproof sealing structure requires drilling holes when laying new cables later, which causes damage to the cable surface and increases the difficulty of installation.
It adopts a detachable fireproof main board and an adjustable conduit structure, and uses a sealing component to seal and fix the cable, avoiding the need for re-drilling.
It reduces the difficulty and cost of subsequent cable laying, improves adaptability to cables of different diameters, and reduces the risk of cable surface wear and fire spread.
Smart Images
Figure CN224264634U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cable fire protection technology, and in particular to a fireproof sealing structure for cable laying in a booster station. Background Technology
[0002] Photovoltaic power generation is a green and pollution-free new energy technology that uses the photovoltaic effect at the semiconductor interface to directly convert light energy into electrical energy. In conjunction with photovoltaic power generation, cables need to be laid to transmit the electricity generated by photovoltaics. During the cable laying process, fireproof walls are a key link to ensure the safety of power transmission and prevent the spread of fire. Fireproof walls are important partitioning components used to divide fire compartments or prevent the spread of fire between buildings.
[0003] Chinese patent CN207893268U discloses a fireproof sealing structure for cables, installed inside a firewall. It includes a filler block and a conduit. The filler block is made of fireproof sealing material and is located inside the firewall. The conduit passes through the filler block and the firewall, and a cable is run through the conduit. Fireproof components are installed at the openings of the conduit. Fireproof partitions are installed on both sides of the firewall on the filler block. The conduit passes through the fireproof partitions, and the fireproof partitions are fixed to the firewall.
[0004] The above technology requires the installation of a corresponding number and size of conduits on the fireproof partitions based on the number and size of the cables. This necessitates the customization of each fireproof partition. However, during the later stages of cable installation, additional cables may need to be laid. Since the fireproof partitions were customized during the initial cable installation, they cannot be used for subsequent cable laying. This necessitates drilling holes in the wall again. The debris generated from drilling holes can easily fall onto the previously laid cables, damaging their surface. This increases the difficulty of subsequent cable laying and presents a drawback. Utility Model Content
[0005] To address the issue that fireproof partitions can increase the difficulty of laying additional cables later, this application provides a fireproof sealing structure for cable laying in substations.
[0006] The fireproof sealing structure for cable laying in a booster station provided in this application adopts the following technical solution:
[0007] A fireproof sealing structure for cable laying in a substation includes a fireproof main board prefabricated on a building wall. The fireproof main board extends through both sides of the building wall and has several mounting holes on both sides. A mounting block and a solid block are detachably mounted on the fireproof main board. The solid block and the mounting block are of the same size and are used to seal the mounting holes. A locking element for fixing the mounting block is provided on the fireproof main board. A conduit for cable passage is provided on the mounting block. A sealing component is provided on the conduit to seal the gap between the inner diameter sidewall of the conduit and the cable.
[0008] By adopting the above technical solution, when it is necessary to lay cables again in the future, the workers first remove the solid block, then select the appropriate mounting block corresponding to the conduit according to the size of the new cable, then pass the cable through the conduit on the mounting block and seal it with the sealing component, then install the mounting block in the mounting hole on the fireproof main board, and finally fix it with the locking component. This process does not require drilling holes again, which greatly reduces the difficulty and cost of laying cables in the future.
[0009] Optionally, the mounting block includes two identical workstation blocks bolted together, and the conduit includes two identical half-pipes, each half-pipe corresponding to a workstation block, the half-pipes being mounted on the workstation blocks and bolted together.
[0010] By adopting the above technical solution, workers are no longer required to insert the cable through the end of the conduit, which greatly reduces the difficulty of putting the conduit on the cable and makes it easier for workers to put the installation block on the cable.
[0011] Optionally, the locking component includes a locking screw disposed on the fireproof main board, an anti-detachment plate slidably sleeved on the locking screw, the anti-detachment plate being used to block the edges of the mounting block or the solid block, and a locking nut threadedly connected to the locking screw, the locking nut being located on the side of the anti-detachment plate facing away from the fireproof main board.
[0012] By adopting the above technical solution, it is convenient for workers to fix the position of the mounting block or solid block on the fireproof main board, reducing the possibility of the mounting block or solid block accidentally detaching from the fireproof main board.
[0013] Optionally, both ends of the half-pipe are provided with flanges with a C-shaped cross-section. The sealing assembly includes an outer baffle bolted to the flange. The outer baffle has a C-shaped cross-section and a fireproof sealing strip is provided in the C-shaped groove of the outer baffle. The fireproof sealing strip is used to abut against the outer side wall of the cable. An inner baffle bladder is provided on the inner side wall of the end of the half-pipe. A pressurizing pipe communicating with the inner baffle bladder is provided on the half-pipe. A leak-proof block is bolted to the pressurizing pipe. The inner baffle bladders on the two half-pipes abut against each other. The space between the inner baffle bladder and the outer baffle is filled with fireproof sealing filler.
[0014] By adopting the above technical solution, after the two half-pipes are joined to the cable, the two inner baffles abut against each other and wrap around the outer circumferential wall of the cable. Then, the worker fills the gap between the inner baffles and the flange with fireproof sealant. Finally, the worker fixes the outer baffle to the flange with bolts. At this time, the fireproof sealing strip will abut against the outer circumferential wall of the cable, thereby completing the sealing and fireproofing of the gap between the inner diameter side wall of the conduit and the cable.
[0015] Optionally, the fire-resistant sealing filler may be an intumescent fire-resistant sealant.
[0016] By adopting the above technical solution, the intumescent fireproof sealant has strong plasticity and can easily fill the gap between the inner diameter side wall of the conduit and the cable, reducing the possibility that the outer circumferential wall of the cable cannot be completely sealed, and at the same time playing a role in preventing the spread of fire.
[0017] Optionally, the outer baffle is simultaneously fixed to the flanges at the ends of the two half-pipes by bolts.
[0018] By adopting the above technical solution, it is beneficial to improve the structural strength between the two half-pipes.
[0019] Optionally, the inner baffle bladder is filled with liquid.
[0020] By adopting the above technical solution, the liquid can absorb the heat transferred to the cable through heat transfer, further improving the fire resistance of the cable.
[0021] Optionally, a plurality of support plates are provided on the inner wall of the half tube. The support plates are used to abut and support the cable. The plurality of support plates are arranged along the axial direction of the cable conduit. The cross-section of the support plate is C-shaped, and one end of the C-shape of the support plate is fixed to the inner wall of the half tube.
[0022] By adopting the above technical solution, the C-shaped support plate can support cables of different diameters through deformation, which is beneficial to improving the adaptability to cables of different diameters. At the same time, it reduces the direct contact between the cable and the inner wall of the conduit, reducing the possibility of cable surface wear.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. When it is necessary to lay cables again later, the workers first remove the solid block, then select the appropriate mounting block corresponding to the conduit according to the size of the new cable. Then, the cable is passed through the conduit on the mounting block and sealed by the sealing component. After that, the mounting block is installed in the mounting hole on the fireproof main board and finally fixed by the locking component. This process does not require drilling holes again, which greatly reduces the difficulty and cost of laying cables later.
[0025] 2. After the two half-pipes are joined to the cable, the two inner baffles abut against each other and wrap around the outer circumferential wall of the cable. Then, the worker fills the gap between the inner baffles and the flange with fireproof sealant. Finally, the worker fixes the outer baffle to the flange with bolts. At this time, the fireproof sealing strip will abut against the outer circumferential wall of the cable, thus completing the sealing and fireproofing of the gap between the inner diameter side wall of the conduit and the cable.
[0026] 3. The C-shaped support plate can deform to support cables of different diameters, which helps to improve the adaptability to cables of different diameters. At the same time, it reduces the direct contact between the cable and the inner wall of the conduit, reducing the possibility of cable surface wear. Attached Figure Description
[0027] Figure 1 This is a structural schematic diagram of an embodiment of this application.
[0028] Figure 2 yes Figure 1 A magnified view of part A in the middle.
[0029] Figure 3 This is a cross-sectional view used in the embodiments of this application to illustrate the positional relationship between the support sheet, the half tube, and the inner baffle bladder.
[0030] Explanation of reference numerals in the attached drawings: 1. Building wall; 2. Cable; 3. Fireproof main board; 4. Mounting hole; 5. Mounting block; 51. Station block; 6. Solid block; 7. Locking element; 71. Locking screw; 72. Anti-detachment plate; 73. Locking nut; 8. Through pipe; 81. Half pipe; 9. Sealing assembly; 91. Outer baffle; 92. Fireproof sealing strip; 93. Inner baffle bladder; 94. Pressurization pipe; 95. Leak-proof block; 96. Sealing fireproof filler; 10. Flange; 11. Support plate. Detailed Implementation
[0031] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.
[0032] This application discloses a fireproof sealing structure for cable laying in a booster station.
[0033] Reference Figure 1 A fireproof sealing structure for cable laying in a substation includes a fireproof main board 3 prefabricated on a building wall 1. The fireproof main board 3 penetrates both sides of the building wall 1. Several mounting holes 4 are opened on both sides of the fireproof main board 3. Mounting blocks 5 and solid blocks 6 are detachably arranged on the fireproof main board 3.
[0034] Reference Figure 1 , Figure 2 and Figure 3 Solid block 6 and mounting block 5 are the same size. Both mounting block 5 and solid block 6 are inserted into mounting hole 4. Both mounting block 5 and solid block 6 are used to block mounting hole 4. A conduit 8 for cable 2 to pass through is arranged on mounting block 5.
[0035] Reference Figure 1 and Figure 2 The mounting block 5 includes two identical workstation blocks 51, which are bolted together. The conduit 8 includes two identical half-pipes 81, which correspond one-to-one with the workstation blocks 51. The half-pipes 81 are arranged on the workstation blocks 51 and bolted together. Both ends of the half-pipes 81 are welded with flanges 10 with a C-shaped cross-section.
[0036] Reference Figure 3 Multiple support plates 11 with C-shaped cross sections are arranged on the inner wall of the half-pipe 81. The multiple support plates 11 are arranged along the axial direction of the cable pipe 8. The support plates 11 are used to abut and support the cable 2. One end of the C-shape of the support plate 11 is welded to the inner wall of the half-pipe 81.
[0037] Reference Figure 1 The fireproof main board 3 is provided with a locking component 7 for fixing the mounting block 5. The locking component 7 includes a locking screw 71 welded to the fireproof main board 3. An anti-detachment plate 72 is slidably sleeved on the locking screw 71. The anti-detachment plate 72 is used to block the edge of the mounting block 5 or the solid block 6. A locking nut 73 is threadedly connected to the locking screw 71. The locking nut 73 is located on the side of the anti-detachment plate 72 facing away from the fireproof main board 3.
[0038] When a new cable 2 needs to be laid later, the worker first removes the solid block 6, and then selects the corresponding size conduit 8 and the corresponding mounting block 5 according to the size of the new cable 2. Then the cable 2 is passed through the mounting hole 4 where the solid block 6 has been removed, and then the two half-pipes 81 are fixed to the cable 2 with bolts. During this process, the support plate 11 is deformed by the compression between the cable 2 and the half-pipes 81.
[0039] The worker fixes the two workstation blocks 51 to the two half-pipes 81 with bolts, thus completing the assembly and fixing of the mounting block 5. Then, the assembled mounting block 5 is inserted into the mounting hole 4. After that, the anti-detachment plate 72 is put on the locking screw 71 and the locking nut 73 is tightened, thus completing the fixing of the mounting block 5.
[0040] Reference Figure 2 and Figure 3 A sealing assembly 9 is arranged on the conduit 8. The sealing assembly 9 is used to seal the gap between the inner diameter side wall of the conduit 8 and the cable 2. The sealing assembly 9 includes an outer baffle 91 bolted to the flange 10. The cross-section of the outer baffle 91 is C-shaped.
[0041] Reference Figure 2 and Figure 3 The outer baffle 91 is simultaneously fixed to the flange 10 at the ends of the two half-pipes 81 by bolts. A fireproof sealing strip 92 is bonded to the C-shaped groove of the outer baffle 91. The fireproof sealing strip 92 can be made of silicone rubber, which is available in the prior art. The fireproof sealing strip 92 is used to abut against the outer side wall of the cable 2. An inner baffle bladder 93 is arranged on the inner side wall of the end of the half-pipe 81. The inner baffle bladder 93 is filled with liquid, which can be water.
[0042] Reference Figure 2 and Figure 3 A pressurizing tube 94 connected to the inner baffle 93 is welded to the half-tube 81. A leak-proof block 95 is bolted to the pressurizing tube 94. The leak-proof block 95 is used to seal the pressurizing tube 94. The inner baffle 93 on the two half-tubes 81 abut against each other. The space between the inner baffle 93 and the outer baffle 91 is filled with a fire-resistant sealing filler 96. The fire-resistant sealing filler 96 can be an intumescent fire-resistant sealant in the prior art.
[0043] Workers fill the inner diaphragm bladder 93 with a large amount of water through the pressurization pipe 94. The inner diaphragm bladder 93 expands until the two inner diaphragm bladders 93 abut against each other and wrap around the circumferential outer wall of the cable 2. Then, workers fill the space between the inner diaphragm bladder 93 and the flange 10 with sealing fireproof filler 96.
[0044] Finally, the worker bolts the outer baffle 91 onto the flange 10. At this time, the fireproof sealing strip 92 will abut against the outer circumferential wall of the cable 2. Meanwhile, the fireproof sealing filler 96 is encapsulated between the inner baffle 93 and the outer baffle 91, thus completing the subsequent laying of the cable 2.
[0045] The implementation principle of the fireproof sealing structure for cable laying in the embodiment of this application is as follows: When a new cable 2 needs to be laid later, the worker first removes the solid block 6, and then selects the corresponding size conduit 8 and the corresponding mounting block 5 according to the size of the new cable 2. Then the cable 2 is passed through the mounting hole 4 where the solid block 6 has been removed, and then the two half-pipes 81 are fixed to the cable 2 with bolts. During this process, the support plate 11 is deformed by the compression between the cable 2 and the half-pipes 81.
[0046] The worker fixes the two workstation blocks 51 to the two half-pipes 81 with bolts, thus completing the assembly and fixing of the mounting block 5. Then, the assembled mounting block 5 is inserted into the mounting hole 4. After that, the anti-detachment plate 72 is put on the locking screw 71 and the locking nut 73 is tightened, thus completing the fixing of the mounting block 5.
[0047] Workers fill the inner diaphragm bladder 93 with a large amount of water through the pressurization pipe 94. The inner diaphragm bladder 93 expands until the two inner diaphragm bladders 93 abut against each other and wrap around the circumferential outer wall of the cable 2. Then, workers fill the space between the inner diaphragm bladder 93 and the flange 10 with sealing fireproof filler 96.
[0048] Finally, the worker bolts the outer baffle 91 onto the flange 10. At this time, the fireproof sealing strip 92 will abut against the outer circumferential wall of the cable 2. Meanwhile, the fireproof sealing filler 96 is encapsulated between the inner baffle 93 and the outer baffle 91, thus completing the subsequent laying of the cable 2.
[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A fireproof sealing structure for cable laying in a substation, characterized in that: The fireproof main board (3) is prefabricated on the building wall (1). The fireproof main board (3) runs through both sides of the building wall (1). Several mounting holes (4) are opened on both sides of the fireproof main board (3). Mounting blocks (5) and solid blocks (6) are detachably provided on the fireproof main board (3). The solid blocks (6) and the mounting blocks (5) are the same size. The mounting blocks (5) and the solid blocks (6) are used to block the mounting holes (4). The fireproof main board (3) is provided with locking parts (7) for fixing the mounting blocks (5). The mounting blocks (5) are provided with conduits (8) for the cable (2) to pass through. The conduits (8) are provided with sealing components (9). The sealing components (9) are used to seal the gap between the inner diameter sidewall of the conduits (8) and the cable (2).
2. The fireproof sealing structure for cable laying in a booster station according to claim 1, characterized in that: The mounting block (5) includes two identical workstation blocks (51), which are bolted together. The conduit (8) includes two identical half-pipes (81), which correspond one-to-one with the workstation blocks (51). The half-pipes (81) are mounted on the workstation blocks (51), and the two half-pipes (81) are bolted together.
3. The fireproof sealing structure for cable laying in a booster station according to claim 1, characterized in that: The locking component (7) includes a locking screw (71) disposed on the fireproof main board (3), and an anti-detachment plate (72) is slidably sleeved on the locking screw (71). The anti-detachment plate (72) is used to block the edge of the mounting block (5) or the solid block (6). A locking nut (73) is threadedly connected to the locking screw (71). The locking nut (73) is located on the side of the anti-detachment plate (72) facing away from the fireproof main board (3).
4. The fireproof sealing structure for cable laying in a booster station according to claim 2, characterized in that: Both ends of the half-pipe (81) are provided with flanges (10) with a C-shaped cross-section. The sealing assembly (9) includes an outer baffle (91) bolted to the flange (10). The outer baffle (91) has a C-shaped cross-section. A fireproof sealing strip (92) is provided in the C-shaped groove of the outer baffle (91). The fireproof sealing strip (92) is used to abut against the outer wall of the cable (2). An inner baffle bladder (93) is provided on the inner side wall of the end of the half-pipe (81). A pressurizing pipe (94) communicating with the inner baffle bladder (93) is provided on the half-pipe (81). A leak-proof block (95) is bolted to the pressurizing pipe (94). The inner baffle bladders (93) on the two half-pipes (81) abut against each other. A fireproof sealing filler (96) is filled between the inner baffle bladder (93) and the outer baffle (91).
5. A fireproof sealing structure for cable laying in a booster station according to claim 4, characterized in that: The fire-resistant sealing filler (96) can be an intumescent fire-resistant sealant.
6. The fireproof sealing structure for cable laying in a booster station according to claim 4, characterized in that: The outer baffle (91) is simultaneously fixed to the flange (10) at the ends of the two half-pipes (81) by bolts.
7. A fireproof sealing structure for cable laying in a booster station according to claim 4, characterized in that: The inner baffle sac (93) is filled with liquid.
8. A fireproof sealing structure for cable laying in a booster station according to claim 2, characterized in that: The inner wall of the half-tube (81) is provided with a plurality of support plates (11), which are used to abut and support the cable (2). The plurality of support plates (11) are arranged along the axial direction of the cable conduit (8). The cross-section of the support plate (11) is C-shaped, and one end of the C-shape of the support plate (11) is fixed to the inner wall of the half-tube (81).