Bus duct fire suppression filling device and method

Abstract

This invention relates to the field of busbar trunking and discloses a fire-extinguishing filling device and method for busbar trunking. The fire-extinguishing filling device for busbar trunking includes: a busbar trunking body, on which a fire-extinguishing mechanism is provided; the fire-extinguishing mechanism includes a top seat, a vertical plate, a horizontal bar, a needle body, a main board, a branch plate, a fireproof sealing plate, and an airbag; the top seat is fixedly installed on the top of the busbar trunking body, the vertical plate is slidably installed on the top seat, the horizontal bar is fixedly installed on the vertical plate, the needle body is fixedly installed on the horizontal bar, the bottom of the vertical plate is fixedly connected to the main board, and the top of the branch plate is fixedly connected to the main board. This invention has the following advantages and effects: the device is purely mechanically and automatically triggered, requiring no electricity, and can quickly release carbon dioxide and seal ventilation holes when the busbar trunking catches fire, providing efficient fire extinguishing without secondary damage, without affecting daily heat dissipation, and is safe, reliable, and does not malfunction.

Description

Technical Field

[0001] This invention relates to the field of busbar trunking technology, and in particular to a fire extinguishing filling device and method for busbar trunking. Background Technology

[0002] With the increasing number of high-rise buildings, the electrical load of buildings has increased dramatically. The original wires and cables, due to their small capacity, inconvenient branching, and difficulty in bundled management, have been gradually replaced by busbar trunking, which has a large capacity and is convenient for branching and bundled management. Busbar trunking is widely used in the power transmission trunking of fire-fighting equipment and the trunking of fire emergency equipment. Therefore, the fire resistance and safety stability of busbar trunking products are of paramount importance.

[0003] Existing busbar trunking technology only dissipates heat through ventilation openings and lacks fire extinguishing capabilities. In the event of a fire in the busbar trunking, it cannot automatically extinguish the fire, resulting in insufficient safety. Therefore, it is necessary to design a fire extinguishing filling device and method for busbar trunking to solve the above problems.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a fire extinguishing filling device and method for busbar trunking to solve the above-mentioned problems.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a fire extinguishing filling device for busbar trunking, comprising:

[0007] The main body of the busbar trunking is equipped with a fire extinguishing mechanism.

[0008] The fire extinguishing mechanism includes a top base, a vertical plate, a horizontal bar, a needle body, a main plate, a branch plate, a fireproof sealing plate, and an airbag;

[0009] The top seat is fixedly installed on the top of the busbar trunking body. The vertical plate is slidably installed on the top seat. The horizontal bar is fixedly installed on the vertical plate. The needle body is fixedly installed on the horizontal bar. The bottom of the vertical plate is fixedly connected to the main board. The top of the branch plate is fixedly connected to the main board. The fireproof sealing plate is fixedly installed on the branch plate. Ventilation holes are provided on the front and rear sides of the busbar trunking body. The fireproof sealing plate is used to seal the ventilation holes. The airbag is fixedly installed on the top inner wall of the busbar trunking body.

[0010] A further configuration of the present invention is as follows: the fire extinguishing mechanism further includes a movable frame, a spring, a box body, a sealing element, a plate body, a positioning block, and a heat-conducting plate. The movable frame is vertically slidably mounted on the top seat. The spring is fixedly mounted between the movable frame and the bottom inner wall of the top seat. The top of the upright plate is fixedly connected to the movable frame. The box body is fixedly mounted on the top of the busbar trunking body. The sealing element is slidably and sealingly mounted on the box body. The side of the plate body is fixedly connected to the sealing element. The top of the plate body is fixedly connected to the positioning block. The positioning block is engaged with the movable frame. The heat-conducting plate is fixedly mounted on the top inner wall of the busbar trunking body. The heat-conducting plate is moved into the interior of the box body.

[0011] A further feature of the present invention is that a positioning groove is provided on the side of the movable frame, and the positioning block is engaged with the positioning groove.

[0012] A further feature of the present invention is that a sliding hole is provided on the side of the top seat, and the positioning block is slidably installed in the sliding hole.

[0013] A further feature of the present invention is that a second sliding hole is provided on the top of the top seat, and the movable frame is slidably installed in the second sliding hole.

[0014] A further feature of the present invention is that the box contains hydraulic oil.

[0015] A further configuration of the present invention is that the needle body is located below the airbag, and the airbag is filled with carbon dioxide.

[0016] A method for fire extinguishing filling of busbar trunking, employing the busbar trunking fire extinguishing filling device as described in any of the above claims, includes the following steps:

[0017] S1: Ventilation holes are used for normal ventilation and heat dissipation of the bus trunking body. When a fire occurs inside the bus trunking body, the temperature inside the bus trunking body increases rapidly. The heat will enter the hydraulic oil in the box through the heat conduction plate. The expansion of the hydraulic oil in the box will cause the seal to move. The seal will drive the plate to move, and the plate will drive the positioning block to move, causing the positioning block to move out of the positioning groove.

[0018] S2: After the positioning block is removed from the positioning slot, the spring resets and drives the moving frame to move upward. The moving frame drives the upright plate to move, and the upright plate drives the crossbar to move. This causes the needle to move upward and puncture the airbag, allowing the carbon dioxide inside the airbag to overflow for fire extinguishing.

[0019] S3: The upright plate moves the main board, which in turn moves the branch plate and the fireproof sealing plate. The fireproof sealing plate seals the ventilation holes, and together with the release of carbon dioxide, it can effectively extinguish the fire and prevent the fire from spreading.

[0020] The beneficial effects of this invention are:

[0021] Under normal operating conditions, the fireproof sealing plate and ventilation hole are misaligned and separated, with the ventilation hole remaining open to meet the heat dissipation requirements of the busbar trunking during long-term operation. In case of fire, the ventilation hole is automatically sealed, avoiding the contradiction between traditional fire extinguishing devices and heat dissipation requirements, thus improving the practicality of the device. Carbon dioxide quickly covers the inside of the busbar trunking to suffocate the fire, and the sealing structure cuts off the external oxygen supply, ensuring fire extinguishing efficiency while preventing the flames and smoke from spreading outward, reducing the risk of the fire spreading to surrounding lines or buildings, and significantly improving the overall fire safety of the power distribution system. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a fire extinguishing filling device for busbar trunking proposed in this invention. Figure 1 .

[0024] Figure 2 This is a schematic diagram of the structure of a fire extinguishing filling device for busbar trunking proposed in this invention. Figure 2 .

[0025] Figure 3 This is a schematic cross-sectional view of a fire extinguishing filling device for busbar trunking proposed in this invention. Figure 1 .

[0026] Figure 4 This is a schematic cross-sectional view of a fire extinguishing filling device for busbar trunking proposed in this invention. Figure 2 .

[0027] Figure 5 yes Figure 2 A schematic diagram of part A in the diagram.

[0028] Figure 6 yes Figure 4 A schematic diagram of part B in the diagram.

[0029] Figure 7 yes Figure 4 A schematic diagram of part C in the diagram.

[0030] In the diagram, 1. Busbar trunking body; 2. Top seat; 3. Vertical plate; 4. Horizontal bar; 5. Pin body; 6. Main board; 7. Branch plate; 8. Fireproof sealing plate; 9. Ventilation hole; 10. Airbag; 11. Moving frame; 12. Spring; 13. Box body; 14. Sealing element; 15. Plate body; 16. Positioning block; 17. Positioning groove; 18. Heat-conducting plate; 19. Sliding hole one; 20. Sliding hole two. Detailed Implementation

[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection", and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood through the specific circumstances.

[0032] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The present invention provides a fire extinguishing filling device for busbar trunking, comprising:

[0034] Busbar trunking body 1, with a fire extinguishing mechanism installed on busbar trunking body 1;

[0035] The fire extinguishing mechanism includes a top base 2, a vertical plate 3, a horizontal bar 4, a needle body 5, a main plate 6, a branch plate 7, a fireproof sealing plate 8, and an airbag 10;

[0036] The top seat 2 is fixedly installed on the top of the busbar trunking body 1. The vertical plate 3 is slidably installed on the top seat 2. The horizontal bar 4 is fixedly installed on the vertical plate 3. The needle body 5 is fixedly installed on the horizontal bar 4. The bottom of the vertical plate 3 is fixedly connected to the main plate 6. The top of the branch plate 7 is fixedly connected to the main plate 6. The fireproof sealing plate 8 is fixedly installed on the branch plate 7. Ventilation holes 9 are provided on the front and rear sides of the busbar trunking body 1. The fireproof sealing plate 8 is used to seal the ventilation holes 9. The airbag 10 is fixedly installed on the top inner wall of the busbar trunking body 1.

[0037] With the above structure, when a fire breaks out inside the main body 1 of the busbar trunking, the needle body 5 can be automatically triggered to pierce the built-in carbon dioxide airbag 10 without manual operation or electrical control. At the same time, the fireproof sealing plate 8 is driven to close the ventilation hole 9, quickly isolating oxygen and releasing the extinguishing agent to suffocate the fire. The response is timely and the action is reliable, which significantly improves the safety of the busbar trunking operation.

[0038] Specifically, the fire extinguishing mechanism also includes a movable frame 11, a spring 12, a box 13, a seal 14, a plate 15, a positioning block 16, and a heat-conducting plate 18. The movable frame 11 is vertically slidably mounted on the top seat 2. The spring 12 is fixedly mounted between the movable frame 11 and the bottom inner wall of the top seat 2. The top of the upright plate 3 is fixedly connected to the movable frame 11. The box 13 is fixedly mounted on the top of the busbar trunking body 1. The seal 14 is slidably and sealingly mounted on the box 13. The side of the plate 15 is fixedly connected to the seal 14. The top of the plate 15 is fixedly connected to the positioning block 16. The positioning block 16 is engaged with the movable frame 11. The heat-conducting plate 18 is fixedly mounted on the top inner wall of the busbar trunking body 1. The heat-conducting plate 18 is moved into the interior of the box 13.

[0039] Through the above structure, the abnormal high temperature inside the busbar trunking 1 is transferred to the heat conduction plate 18, causing the hydraulic oil in the box 13 to expand due to heat, pushing the seal 14 to move laterally and driving the positioning block 16 to move, thereby releasing the clamping limit on the moving frame 11, realizing the pure mechanical automatic sensing and triggering of fire, which is not affected by electrical faults such as power failure and short circuit, and has stronger stability and lower failure risk.

[0040] Specifically, the movable frame 11 has a positioning groove 17 on its side, and the positioning block 16 is engaged with the positioning groove 17.

[0041] With the above structure, the positioning block 16 and the positioning groove 17 are interlocked to limit the position. Under normal ventilation and heat dissipation conditions of the busbar trunking, the position of the movable frame 11 can be firmly locked, which can effectively prevent accidental action such as accidental contact of the needle body 5 and accidental rupture of the airbag bag 10. It will only unlock automatically when triggered by high temperature expansion, which greatly improves the working reliability and environmental adaptability of the entire fire extinguishing device.

[0042] Specifically, the top seat 2 has a sliding hole 19 on its side, and the positioning block 16 is slidably installed in the sliding hole 19. The top of the top seat 2 has a sliding hole 20, and the moving frame 11 is slidably installed in the sliding hole 20.

[0043] With the above structure, and the guide and limiting of sliding hole 19 and sliding hole 20, the moving frame 11 can slide stably vertically and the positioning block 16 can move smoothly horizontally. The movement paths of each moving part are clear and there is no jamming or interference, ensuring that the fire extinguishing mechanism can respond instantly and act accurately when a fire occurs, without delay or failure.

[0044] Specifically, the box 13 contains hydraulic oil.

[0045] With the above structure, the physical properties of the hydraulic oil inside the box 13 expanding when heated are used as the core triggering power. The temperature sensing is sensitive and the triggering threshold is stable. It can quickly capture the overheating and fire signal inside the bus trunking. Moreover, the whole process is driven by mechanical structure, without the need for power supply, sensors or controllers. It is especially suitable for complex and dangerous working conditions such as high temperature and short circuit fire in bus trunking.

[0046] Specifically, the needle body 5 is located below the airbag 10, which is filled with carbon dioxide.

[0047] With the above structure, the needle 5 can directly puncture the airbag 10 and quickly release carbon dioxide gas, which can suffocate and extinguish the fire in the enclosed space. At the same time, the carbon dioxide extinguishing agent is clean, residue-free, non-conductive, and non-corrosive, and will not cause secondary damage to the copper busbars, insulation parts and electrical components inside the busbar trunking 1. The equipment is easy to clean and can be quickly restored to use after the fire is extinguished.

[0048] A method for fire extinguishing filling of busbar trunking, employing a busbar trunking fire extinguishing filling device as described above, includes the following steps:

[0049] S1: Ventilation hole 9 is used for normal ventilation and heat dissipation of bus trunking body 1. When fire starts inside bus trunking body 1, the temperature inside bus trunking body 1 increases sharply. The heat will enter the hydraulic oil in box 13 through heat conduction plate 18. The expansion of hydraulic oil in box 13 will cause seal 14 to move. Seal 14 drives plate 15 to move. Plate 15 drives positioning block 16 to move, causing positioning block 16 to move out of positioning groove 17.

[0050] S2: After the positioning block 16 moves out of the positioning slot 17, the spring 12 resets and drives the moving frame 11 to move upward. The moving frame 11 drives the upright plate 3 to move, and the upright plate 3 drives the crossbar 4 to move. This causes the needle body 5 to move upward and puncture the airbag 10, causing the carbon dioxide in the airbag 10 to overflow for fire extinguishing.

[0051] S3: The upright plate 3 simultaneously moves the main plate 6, which in turn causes the branch plate 7 to move the fireproof sealing plate 8. The fireproof sealing plate 8 seals the ventilation hole 9, and together with the overflow of carbon dioxide, it can effectively extinguish the fire and prevent the fire from spreading.

[0052] Working principle:

[0053] During the normal operation of the busbar trunking body 1, the ventilation holes 9 remain open to ensure that the heat generated by the copper busbars and electrical components inside the busbar trunking can be quickly dissipated, meeting the heat dissipation requirements for the long-term stable operation of the busbar trunking. At this time, the positioning block 16 is precisely inserted into the positioning groove 17 on the side of the moving frame 11, and the moving frame 11, the upright plate 3 and the needle body 5 are firmly locked in the initial low position through the mechanical clamping structure. The spring 12 is in a compressed and energy-storing state. The fireproof sealing plate 8 and the ventilation hole 9 are arranged in a staggered and separate manner, which will not affect the ventilation and heat dissipation effect. The airbag 10 remains completely sealed, and the carbon dioxide fire extinguishing agent is stored stably. The entire device has no risk of accidental triggering or malfunction under normal operating conditions, ensuring the reliability of the busbar trunking's normal operation.

[0054] When a fire occurs inside the busbar trunking body 1 due to overload, short circuit, poor contact, or other faults, the temperature inside the trunking will rise rapidly in a short time. At this time, the heat-conducting plate 18, which is fixedly installed on the inner wall of the top of the busbar trunking body 1, will quickly conduct heat and transfer the high temperature to the hydraulic oil contained inside the box 13. The hydraulic oil expands rapidly after being heated, and uses the physical property of thermal expansion and contraction of liquids to generate thrust, pushing the seal 14 to slide smoothly laterally along the inner wall of the box 13. The seal 14 is fixedly connected to the plate 15, thereby driving the plate 15 to move synchronously. The positioning block 16 on the top of the plate 15 slides laterally along the sliding hole 19 on the side of the top seat 2, and finally the positioning block 16 completely exits the positioning groove 17 of the moving frame 11, completely releasing the mechanical limit constraint on the moving frame 11.

[0055] After the limit constraint is released, the spring 12, which is in a compressed and stored state, instantly releases its elastic potential energy, generating an upward driving force that pulls the moving frame 11 to move vertically and quickly along the sliding hole 20 on the top of the top seat 2. The sliding hole 20 provides precise guidance for the moving frame 11, preventing jamming or deviation during the movement. The moving frame 11 is fixedly connected to the upright plate 3, and simultaneously drives the upright plate 3 and the crossbar 4 to move upward. The needle 5 fixedly installed on the crossbar 4 moves upward accordingly, and its tip precisely pierces the airbag 10 on the inner wall of the top of the busbar trunking body 1. The high-pressure carbon dioxide extinguishing agent pre-filled in the airbag 10 is rapidly released, forming a uniformly covered extinguishing atmosphere inside the busbar trunking body 1. Through the dual effects of isolating oxygen and reducing temperature, it achieves rapid suffocation extinguishing. Moreover, carbon dioxide is non-conductive and non-flammable, and will not cause secondary electric shock risk.

[0056] As the upright plate 3 moves upward, the main plate 6, which is fixedly connected to its bottom, simultaneously drives the branch plate 7 to move upward. The fireproof sealing plate 8 on the branch plate 7 moves upward accordingly, precisely aligning with and completely sealing the ventilation holes 9 on the front and rear sides of the busbar trunking body 1, thus completely cutting off the channel for external air oxygen to enter the busbar trunking. Through the combination of extinguishing agent release and oxygen isolation, a sealed suffocation fire extinguishing environment is formed, which can not only quickly suppress and extinguish the fire, but also effectively prevent flames and dense smoke from spreading outward along the ventilation holes 9, avoiding the fire from spreading to surrounding lines or building structures, and significantly improving the fire safety of the busbar trunking and the entire power distribution system.

[0057] The entire fire extinguishing process is driven by a purely mechanical structure, without relying on any electrical control components, sensors, or external power sources. It achieves automatic response entirely through temperature-triggered hydraulic oil expansion. The entire response time, from the occurrence of a fire to the release of the extinguishing agent and the sealing of ventilation holes, can be controlled within a few seconds. The action is rapid, reliable, and stable. Even in the extreme case of a short circuit and power outage in the busbar trunking, the device can still work normally, effectively solving the technical pain point of traditional electrical control fire extinguishing devices failing when power is cut off. Moreover, there is no carbon dioxide residue after fire extinguishing, and it does not corrode equipment, facilitating the subsequent maintenance and restoration of the busbar trunking.

[0058] The present invention has provided a detailed description of a fire-extinguishing filling device and method for busbar trunking. Specific embodiments have been used to illustrate the principles and implementation of the invention. These embodiments are merely illustrative and are intended to aid in understanding the method and core concepts of the invention. It should be noted that those skilled in the art can make various improvements and modifications to the invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims.

Claims

1. A fire extinguishing filling device for busbar trunking, characterized in that, include: Busbar trunking body (1), on which a fire extinguishing mechanism is provided; The fire extinguishing mechanism includes a top base (2), a vertical plate (3), a horizontal bar (4), a needle body (5), a main plate (6), a branch plate (7), a fireproof sealing plate (8), and an airbag (10). The top seat (2) is fixedly installed on the top of the busbar trunking body (1). The upright plate (3) is slidably installed on the top seat (2). The crossbar (4) is fixedly installed on the upright plate (3). The needle body (5) is fixedly installed on the crossbar (4). The bottom of the upright plate (3) is fixedly connected to the main plate (6). The top of the branch plate (7) is fixedly connected to the main plate (6). The fireproof sealing plate (8) is fixedly installed on the branch plate (7). Ventilation holes (9) are provided on the front and rear sides of the busbar trunking body (1). The fireproof sealing plate (8) is used to seal the ventilation holes (9). The airbag (10) is fixedly installed on the top inner wall of the busbar trunking body (1).

2. A fire extinguishing filler device for bus ducts according to claim 1, characterized in that The fire extinguishing mechanism also includes a movable frame (11), a spring (12), a box (13), a seal (14), a plate (15), a positioning block (16), and a heat-conducting plate (18). The movable frame (11) is vertically slidably mounted on the top seat (2). The spring (12) is fixedly mounted between the movable frame (11) and the bottom inner wall of the top seat (2). The top of the upright plate (3) is fixedly connected to the movable frame (11). The box (13) is fixedly mounted on the top of the busbar trunking body (1). The seal (14) is slidably and sealingly mounted on the box (13). The side of the plate (15) is fixedly connected to the seal (14). The top of the plate (15) is fixedly connected to the positioning block (16). The positioning block (16) is engaged with the movable frame (11). The heat-conducting plate (18) is fixedly mounted on the top inner wall of the busbar trunking body (1). The heat-conducting plate (18) is moved into the interior of the box (13).

3. A fire extinguishing filler device for bus ducts according to claim 2, characterized in that The movable frame (11) has a positioning groove (17) on its side, and the positioning block (16) is engaged with the positioning groove (17).

4. A fire extinguishing filler device for bus ducts according to claim 2, characterized in that The top seat (2) has a sliding hole (19) on its side, and the positioning block (16) is slidably installed in the sliding hole (19).

5. A fire extinguishing filler device for bus ducts according to claim 2, characterized in that, The top seat (2) has a sliding hole (20) on its top, and the movable frame (11) is slidably installed in the sliding hole (20).

6. A fire extinguishing filler device for bus ducts according to claim 2, characterized in that The box (13) contains hydraulic oil.

7. The busway fire-filling device of claim 1, wherein, The needle body (5) is located below the airbag (10), which is filled with carbon dioxide.

8. A bus duct fire-filling method using the bus duct fire-filling device according to any one of claims 1 to 7, characterized by, Includes the following steps: S1: Ventilation hole (9) is used for normal ventilation and heat dissipation of bus trunking body (1). When fire starts inside the bus trunking body (1), the temperature inside the bus trunking body (1) increases sharply. Heat will enter the hydraulic oil in the box (13) through the heat conduction plate (18). The expansion of the hydraulic oil in the box (13) will cause the seal (14) to move. The seal (14) will drive the plate (15) to move. The plate (15) will drive the positioning block (16) to move, so that the positioning block (16) moves out of the positioning groove (17). S2: After the positioning block (16) moves out of the positioning slot (17), the spring (12) resets and drives the moving frame (11) to move upward. The moving frame (11) drives the upright plate (3) to move, and the upright plate (3) drives the crossbar (4) to move. This causes the needle (5) to move upward and puncture the airbag (10), causing the carbon dioxide in the airbag (10) to overflow for fire extinguishing. S3: The upright plate (3) simultaneously drives the main plate (6) to move, which in turn causes the branch plate (7) to drive the fireproof sealing plate (8) to move. The fireproof sealing plate (8) seals the ventilation hole (9), and with the overflow of carbon dioxide, it can effectively extinguish the fire and prevent the fire from spreading.

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