Expansion type fireproof composite board for high-voltage cable channel

Abstract

The utility model discloses an expansion type fireproof composite board for a high-voltage cable channel, which comprises a substrate, an expansion mechanism is arranged in the substrate, the expansion mechanism comprises a partition plate, an expansion layer, an expansion bin and a trigger mechanism, and the trigger mechanism comprises a mounting sleeve, a mounting ring, a sealing sleeve, a center rod, a push block, a pressure spring, a sealing block, a limiting plate and an abutting plate. The installation sleeve is installed on the partition plate, the installation ring is installed in the installation sleeve, the sealing sleeve is arranged in the installation sleeve, the center rod is installed on the sealing sleeve, the pushing block is installed at the top end of the center rod, the center rod and the pushing block achieve accurate mechanical energy transmission, and the multiple sets of compressed springs and the sealing block provide stable elastic supporting. The limiting plate and the abutting plate ensure the accuracy of the motion trail, so that the whole triggering process can be responded in milliseconds, the starting stability and reliability of the expansion layer are ensured, accidental displacement is prevented, and active and accurate intervention on dangers is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the electric power technical field more specifically, it relates to a kind of high-voltage cable passageway with intumescent fireproof composite board. BACKGROUND

[0002] In the increasingly complex modern society of electric power infrastructure, the safety of cable passage is directly related to city operation and people's life and property safety, traditional cable passage faces serious fire risk, especially in dense underground pipe gallery and building cable well, if lack effective fireproof intumescent mechanism, once fire occurs, cable is easily burned rapidly in very short time, rapidly spread, not only can cause huge economic loss, also can cause chain reaction, threaten surrounding building and personnel safety;

[0003] In complex use environment, cable passage is often exposed to high temperature, humidity, corrosion and other extreme conditions, if there is no multilayer composite protection structure, cable passage will be extremely fragile: heat will penetrate rapidly, moisture can accelerate metal corrosion, the erosion of external environment can accelerate material aging, which means that the service life of cable passage will be greatly shortened, maintenance cost will sharply rise, and safety hazard will also accumulate, at any time can brew major accident;

[0004] Under the increasingly severe safety production situation, passive defense of traditional cable passage has been unable to meet the safety needs of modern infrastructure, lack of precise trigger response mechanism means that fire prevention system cannot quickly and accurately respond to emergency, once fire or extreme situation occurs, cable passage will be completely in passive state, cannot actively isolate and control danger, which will greatly increase rescue difficulty, reduce escape probability, and pose a serious threat to urban public safety. CONTENT OF UTILITY MODEL

[0005] (1) technical problem solved

[0006] In view of the problems in the prior art, the utility model provides a kind of high-voltage cable passageway with intumescent fireproof composite board to solve the technical problem that cannot quickly and accurately respond to emergency mentioned in background art.

[0007] (2) technical scheme

[0008] To achieve the above object, the utility model provides the following technical scheme: A kind of intumescent fireproof composite board for high voltage cable passage, including substrate, expansion mechanism is arranged in the substrate, the expansion mechanism includes partition plate, expansion layer, expansion bin and trigger mechanism, the partition plate is installed in substrate, the expansion layer is arranged in partition plate side, the expansion bin is arranged in the other side of partition plate, the trigger mechanism includes mounting sleeve, mounting ring, sealing sleeve, center rod, push block, compression spring, sealing block, limit plate and abutment plate, the mounting sleeve is installed on partition plate, the mounting ring is installed in mounting sleeve, the sealing sleeve is arranged in mounting sleeve, the center rod is installed on sealing sleeve, the push block is installed at the top end of center rod, the compression spring is provided with multiple groups and is respectively installed on the inner wall of mounting sleeve, the sealing block is installed at the top end of multiple compression springs, the limit plate is provided with multiple groups and is respectively installed on mounting ring, the abutment plate is installed at the top end of multiple limit plates.

[0009] The utility model further provides that the partition plate is provided as a high-strength fiberboard to provide structural strength and support, ensuring the overall rigidity and stability of the composite board.

[0010] The utility model further provides that the expansion layer is provided as a fire-retardant resin layer, which can rapidly expand to form a heat insulation layer under high temperature, effectively preventing the spread of flames and heat.

[0011] The utility model further provides that a limiting sleeve is installed on the sealing sleeve, the limiting sleeve is slidably connected with the multiple limit plates, a through hole is formed in the limiting sleeve, and multiple groups of through holes are provided.

[0012] The utility model further provides that a push spring is installed on the sealing sleeve, a push ring is installed at the top end of the push spring, and the top surface of the push spring abuts against the multiple abutment plates.

[0013] The utility model further provides that a composite mechanism is arranged on the outer side of the substrate, the composite mechanism includes a fireproof layer, a heat insulation layer, a moisture-proof layer and a protective layer, the fireproof layer is arranged on the outer side of the substrate, the heat insulation layer is arranged on the outer side of the fireproof layer, the moisture-proof layer is arranged on the outer side of the heat insulation layer, and the protective layer is arranged on the outer side of the moisture-proof layer, thereby constructing a three-dimensional and gradient protective barrier and significantly improving the safety, durability and service life of the structure.

[0014] The utility model further provides that the fireproof layer is provided as a ceramic coating, the heat insulation layer is provided as aerogel, the moisture-proof layer is provided as a polyurethane coating, and the protective layer is provided as fluorocarbon paint, thereby achieving comprehensive and intelligent protection of the cable passage.

[0015] The utility model further provides that a decorative layer is arranged on the outer side of the protective layer, the decorative layer is provided as a wood grain film, thereby enhancing the aesthetics of the product and meeting the decoration requirements of different scenarios.

[0016] (Three) beneficial effects

[0017] Compared with the prior art, the utility model provides a kind of high-voltage cable passage with intumescent fireproof composite board, with following beneficial effects:

[0018] 1, partition plate is as high-strength fiberboard, provides solid structural support, ensure that the structural integrity is maintained under extreme conditions;Expansion layer as fire-retardant resin layer, can rapidly expand several times to several tens times under the action of high temperature, form uniform carbonized heat insulation layer, effectively block the spread of fire, by volume sharp expansion creates isolated space, realize the rapid fireproof barrier construction inside cable passage.

[0019] 2, mounting sleeve, mounting ring and sealing sleeve constitute precision position control system, center rod and push block realize accurate mechanical energy transmission, multiple compression springs and sealing block provide stable elastic support, limit plate and resistance plate ensure the accuracy of movement trajectory, so that the entire triggering process can respond in millisecond level, ensure the stability and reliability of expansion layer start, prevent accidental displacement, realize active, accurate intervention to danger.

[0020] 3, fireproof layer as ceramic coating, can block flame propagation, form first fireproof barrier;Heat insulation layer as aerogel, has very low thermal conductivity, effectively insulates heat;Moisture-proof layer as polyurethane coating, forms dense molecular chain structure, blocks moisture penetration;Protective layer as fluorocarbon paint, resists external environmental corrosion, through multilayer synergistic protection technology, construct three-dimensional, gradient protection barrier, significantly improve the safety, durability and service life of structure, realize all-round, intelligent protection to cable passage. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the overall cross-sectional structure schematic view of a kind of high-voltage cable passage with intumescent fireproof composite board in the utility model;

[0022] Figure 2 It is the cross-sectional structure schematic view of base plate in the utility model;

[0023] Figure 3 It is the cross-sectional structure schematic view of expansion bin in the utility model;

[0024] Figure 4 It is the cross-sectional structure schematic view of triggering mechanism in the utility model;

[0025] Figure 5 It is the cross-sectional structure schematic view of sealing sleeve in the utility model.

[0026] In the figure: 1, base plate; 2, partition plate; 3, expansion layer; 4, expansion bin; 5, mounting sleeve; 6, mounting ring; 7, sealing sleeve; 8, center rod; 9, push block; 10, compression spring; 11, sealing block; 12, limiting plate; 13, abutting plate; 14, limiting sleeve; 15, through hole; 16, push spring; 17, push ring; 18, fireproof layer; 19, heat insulation layer; 20, moisture-proof layer; 21, protective layer; 22, decorative layer. DETAILED DESCRIPTION

[0027] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0029] In the present application, unless otherwise stated, the directions used such as "up, down" are generally with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravitational direction; similarly, for the convenience of understanding and description, "left, right" is generally with respect to the left and right shown in the drawings; "inner, outer" refers to the inner and outer with respect to the contour of each component itself, but the above directional words are not used to limit the present application.

[0030] Please refer to Figures 1-5 A kind of expansion type fireproof composite board for high-voltage cable passage, including base plate 1, expansion mechanism is arranged in base plate 1, expansion mechanism includes partition plate 2, expansion layer 3, expansion bin 4 and trigger mechanism, partition plate 2 is installed in base plate 1, expansion layer 3 is arranged in one side of partition plate 2, expansion bin 4 is arranged in the other side of partition plate 2, trigger mechanism includes mounting sleeve 5, mounting ring 6, sealing sleeve 7, center rod 8, push block 9, compression spring 10, sealing block 11, limiting plate 12 and abutting plate 13, mounting sleeve 5 is installed on partition plate 2, mounting ring 6 is installed in mounting sleeve 5, sealing sleeve 7 is arranged in mounting sleeve 5, center rod 8 is installed on sealing sleeve 7, push block 9 is installed on the top end of center rod 8, compression spring 10 is provided with multiple groups and is respectively installed on the inner wall of mounting sleeve 5, sealing block 11 is installed on the top end of multiple compression springs 10, limiting plate 12 is provided with multiple groups and is respectively installed on mounting ring 6, abutting plate 13 is installed on the top end of multiple limiting plates 12.

[0031] Partition plate 2 is set as high-strength fiberboard, which improves the mechanical properties of the composite board, so that it can withstand the pressure or impact force in the cable passage, while ensuring the effective formation of the expansion barrier.

[0032] The expansion layer 3 is set as a fire-retardant resin layer. Under the action of high temperature, the fire-retardant resin layer undergoes physical expansion and chemical reaction, and its volume rapidly increases several times to dozens of times, forming a uniform carbonized heat insulation layer.

[0033] A limiting sleeve 14 is mounted on the sealing sleeve 7 and is in sliding connection with the plurality of limiting plates 12. A plurality of through holes 15 are formed in the limiting sleeve 14. The precise sliding connection achieves position control.

[0034] A push spring 16 is mounted on the sealing sleeve 7. A push ring 17 is mounted at the top end of the push spring 16. The top surface of the push spring 16 abuts against the plurality of abutting plates 13. The push spring 16 pushes the sealing sleeve 7 to tightly abut against the mounting ring 6 through the pushing force.

[0035] In this embodiment, when the composite board is subjected to high-temperature flame, the expansion layer 3 undergoes physical expansion and chemical reaction under the action of high temperature, and its volume rapidly increases several times to dozens of times. The expansion of the expansion layer 3 generates a certain pressure, thereby pushing the sealing sleeve 7 to move outward to overcome the pushing force of the push spring 16. The sealing sleeve 7 moves outward while pushing the push block 9 to move outward through the central rod 8, thereby pushing the plurality of sealing blocks 11 to move outward to overcome the pushing force of the compression spring 10. The sealing sleeve 7 is separated from the mounting ring 6 to form a flow space through the limiting sleeve 14 along the limiting plate 12. The expansion layer 3 passes through the flow space, then passes through the through holes 15 formed in the limiting sleeve 14, and then flows into the expansion chamber 4 through the flow space between the plurality of sealing blocks 11 to form a high-density carbonized layer. The high-density carbonized layer can effectively isolate the flame and oxygen and prevent the spread of fire. The partition plate 2 is set as a high-strength fiber plate, which can maintain structural integrity at high temperature and prevent the expansion layer 3 from falling off during high-temperature expansion.

[0036] Please refer to Figure 2 , as an embodiment of the composite mechanism: the outer side of the substrate 1 is provided with a composite mechanism, which includes a fireproof layer 18, a heat insulation layer 19, a moisture-proof layer 20 and a protective layer 21. The fireproof layer 18 is arranged on the outer side of the substrate 1. The heat insulation layer 19 is arranged on the outer side of the fireproof layer 18. The moisture-proof layer 20 is arranged on the outer side of the heat insulation layer 19. The protective layer 21 is arranged on the outer side of the moisture-proof layer 20. Through the precise hierarchical structure design, the substrate 1 is protected in all directions.

[0037] The fireproof layer 18 is set as a ceramic coating. The heat insulation layer 19 is set as aerogel. The moisture-proof layer 20 is set as a polyurethane coating. The protective layer 21 is set as a fluorocarbon coating. The ceramic layer blocks the flame. The aerogel layer insulates heat. The polyurethane layer prevents moisture penetration. The fluorocarbon layer resists external environmental erosion. The functional layers cooperate with each other to form a gradient protection barrier.

[0038] A decorative layer 22 is arranged on the outer side of the protective layer 21. The decorative layer 22 is set as a wood grain film, which simulates the texture of real wood and provides an aesthetic surface effect.

[0039] More specifically, the composite mechanism adopts multi-layer collaborative protection technology, which is composed of a fireproof layer 18, a heat insulation layer 19, a moisture-proof layer 20 and a protective layer 21. The fireproof layer 18 is set as a ceramic coating, the heat insulation layer 19 is set as aerogel, the moisture-proof layer 20 is set as a polyurethane coating, and the protective layer 21 is set as a fluorocarbon coating. Through precise hierarchical structure design, all-round protection of the substrate 1 is realized. The ceramic layer blocks the flame, the aerogel layer insulates heat, the polyurethane layer prevents moisture penetration, and the fluorocarbon layer resists external environmental erosion. The functional layers cooperate with each other to form a gradient protection barrier, significantly improving the safety, durability and service life of the structure, and fully embodying the innovative concept of modern composite material science.

[0040] In summary, when the overall device is in use or operation: when the composite board is subjected to high-temperature flame, the expansion material in the expansion layer 3 undergoes physical expansion and chemical reaction under the action of high temperature, and the volume rapidly increases by several tens of times. The expansion of the expansion layer 3 generates a certain pressure, thereby pushing the sealing sleeve 7 to move outward to overcome the pushing force of the push spring 16. At the same time, the sealing sleeve 7 pushes the push block 9 outward through the center rod 8, thereby pushing the multiple sets of sealing blocks 11 to move outward to overcome the pushing force of the compression spring 10. The sealing sleeve 7 slides along the limiting plate 12 and separates from the mounting ring 6 to form a flow space through the limiting sleeve 14. After the expansion layer 3 passes through the flow space, it flows into the expansion chamber 4 through the through hole 15 provided on the limiting sleeve 14, and then flows through the flow space between the multiple sets of sealing blocks 11 to form a high-density carbonized layer, which can effectively isolate the flame and oxygen and prevent the spread of fire. The partition plate 2, which is set as a high-strength fiber plate, can maintain structural integrity at high temperatures to prevent the expansion layer 3 from falling off during high-temperature expansion.

[0041] The composite mechanism adopts multi-layer collaborative protection technology, which is composed of a fireproof layer 18, a heat insulation layer 19, a moisture-proof layer 20 and a protective layer 21. The fireproof layer 18 is set as a ceramic coating, the heat insulation layer 19 is set as aerogel, the moisture-proof layer 20 is set as a polyurethane coating, and the protective layer 21 is set as a fluorocarbon coating. Through precise hierarchical structure design, all-round protection of the substrate 1 is realized. The ceramic layer blocks the flame, the aerogel layer insulates heat, the polyurethane layer prevents moisture penetration, and the fluorocarbon layer resists external environmental erosion. The functional layers cooperate with each other to form a gradient protection barrier, significantly improving the safety, durability and service life of the structure, and fully embodying the innovative concept of modern composite material science.

[0042] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection or other known connection mode, which will not be described here. In the above, whenever there is a fixed connection, welding is preferred. Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An intumescent fireproof composite panel for high voltage cable ducts, comprising a base panel (1), characterised in that: The expansion mechanism is arranged in the substrate (1), and comprises a partition plate (2), an expansion layer (3), an expansion bin (4) and a trigger mechanism.

2. The intumescent fireproof composite board for high-voltage cable channel according to claim 1, characterized in that: The partition plate (2) is arranged as a high-strength fiber plate.

3. An intumescent fireproof composite board for high-voltage cable channel according to claim 2, characterized in that: The expansion layer (3) is arranged as a flame-retardant resin layer.

4. The intumescent fireproof composite board for high-voltage cable channel according to claim 3, characterized in that: A limiting sleeve (14) is arranged on the sealing sleeve (7) and is in sliding connection with the plurality of limiting plates (12); a through hole (15) is formed in the limiting sleeve (14) and is provided with a plurality of groups.

5. An intumescent fireproof composite panel for high voltage cable ducts according to claim 4, characterized in that: A push spring (16) is arranged on the sealing sleeve (7), and a push ring (17) is arranged at the top end of the push spring (16); the top surface of the push spring (16) is in abutment with the plurality of abutting plates (13).

6. An intumescent fireproof composite panel for high voltage cable ducts according to claim 5, characterized in that: A composite mechanism is arranged on the outside of the substrate (1) and comprises a fireproof layer (18), a heat insulation layer (19), a moisture-proof layer (20) and a protective layer (21); the fireproof layer (18) is arranged on the outside of the substrate (1); the heat insulation layer (19) is arranged on the outside of the fireproof layer (18); the moisture-proof layer (20) is arranged on the outside of the heat insulation layer (19); and the protective layer (21) is arranged on the outside of the moisture-proof layer (20).

7. An intumescent fireproof composite panel for high voltage cable ducts according to claim 6, characterized in that: The fireproof layer (18) is arranged as a ceramic coating; the heat insulation layer (19) is arranged as aerogel; the moisture-proof layer (20) is arranged as a polyurethane coating; and the protective layer (21) is arranged as fluorocarbon paint.

8. An intumescent fireproof composite panel for high voltage cable ducts according to claim 7, characterized in that: A decorative layer (22) is arranged on the outside of the protective layer (21) and is arranged as a wood grain film.

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