Intelligent fire prevention and extinguishing device for generator set

Abstract

The invention provides a generator set intelligent fire prevention and extinguishing device, and relates to the technical field of generator fire prevention and extinguishing, the generator set intelligent fire prevention and extinguishing device comprises a top plate, a mounting frame is arranged on the top plate, a hoisting frame is arranged on the mounting frame, a plurality of mounting units are arranged on the hoisting frame, and each unit is used for bearing a gas storage tank; an air guide pipe is mounted at the bottom of the mounting frame, a plurality of evenly-distributed nozzles are arranged on the air guide pipe, a butt joint pipe is arranged on the air guide pipe, an intelligent valve is arranged on the butt joint pipe, a blasting diaphragm is arranged in the intelligent valve, a low-leakage high-sealing valve is mounted on the butt joint pipe, and a fan is mounted at the top of the top plate. The fans are in one-to-one correspondence with the low-leakage high-sealing valves and electrically linked with the low-leakage high-sealing valves, in a normal state, the low-leakage high-sealing valves are matched with the fans, leaked fire extinguishing agents are directionally guided and discharged, in a dangerous case, the low-leakage high-sealing valves are automatically closed, the fire extinguishing agents in the gas storage tank are sprayed downwards through the spray heads of the gas guide pipes, and the fire risk is rapidly put out.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of generator fire prevention and extinguishing, in particular to a smart fire prevention and extinguishing device for generator set. BACKGROUND

[0002] In critical infrastructures such as data centers and communication hubs, standby generator sets, as the "lifeline" to ensure the continuity of power supply, are usually integrated in the form of modular units in closed containers. Due to the large database size and high degree of automation in such places, once a fire occurs and the power supply is interrupted, it will cause catastrophic data loss, business interruption and significant economic losses. Therefore, building a smart fire prevention and extinguishing safety protection system that integrates intelligent sensing, automatic early warning and efficient fire extinguishing has become a core requirement to ensure the safe operation of high-value power generation assets.

[0003] The current mainstream solution uses gas cylinders filled with heptafluoropropane (HFC-227ea) for fire extinguishing. Heptafluoropropane has an average air density of 5.5 to 6 times, which has the characteristics of a heavy gas. This advantage allows it to quickly settle and spread horizontally along the ground after release, effectively displacing oxygen in the combustion area, while inhibiting the combustion chain reaction through heat absorption and free radical capture mechanisms, thereby achieving full flooding and dead angle coverage of the protected area. Based on the above characteristics, the deployment of heptafluoropropane fire extinguishing systems in high-value facilities such as data centers, communication hubs and generator set containers follows the design principle of "high storage, downward release". That is, such fire extinguishing agent cylinders are usually pre-filled, fixed and detected on the ground, then installed on the top of the container by hoisting to save ground space, adapt to the compact layout inside the modular container, and mechanically connected with the fixed pipe system. In case of danger, it is sprayed downward from the high nozzle to achieve the effect of fire extinguishing.

[0004] During the high-altitude docking process, due to damage or vibration loosening of the sealing element, it is easy to produce a small amount of heptafluoropropane leakage. Heptafluoropropane undergoes thermal decomposition under the action of high-temperature flame or electric arc, generating toxic byproducts such as hydrogen fluoride (HF). Hydrogen fluoride dissolves in water to form hydrofluoric acid, which has strong corrosive and biological toxicity, can cause serious burns to the respiratory mucosa of the operator, and can cause acute health risks such as chemical pneumonia and pulmonary edema. Especially in a closed container environment, the harm is more significant.

[0005] Based on the above problems, there is an urgent need to provide a smart fire prevention and extinguishing device for generator sets. In the event of a fire, it is necessary to ensure that the extinguishing agent can be sprayed quickly and unobstructed to the protected area to achieve total flooding extinguishing. However, in the event of a leak, it is also necessary to effectively control the gas diffusion to avoid posing a threat to maintenance personnel. Therefore, this device has the functions of leak monitoring, directional drainage, and intelligent spraying, enabling rapid extinguishing of fire risks and guiding the drainage of leaked extinguishing agent gas to avoid injury to operators. Summary of the Invention

[0006] In response to the problems raised in the background art, the present invention provides a smart fire prevention and extinguishing device for generator sets. The present invention will be further described below.

[0007] A smart fire prevention and extinguishing device for generator sets includes a top plate, a mounting frame on the top plate, a lifting frame on the mounting frame, and multiple installation units on the lifting frame. Each unit supports a gas storage tank, and the gas outlet of the tank integrates a smart sensor. A gas guide pipe is installed at the bottom of the mounting frame, and multiple evenly distributed nozzles are installed on the gas guide pipe. A connecting pipe is installed on the gas guide pipe, and a smart valve is installed on the connecting pipe. The smart valve has a rupture diaphragm inside, and a low-leakage high-sealing valve is installed on the connecting pipe. A fan is installed on the top of the top plate, and the fan corresponds to and is electrically linked to each low-leakage high-sealing valve.

[0008] Preferably, the mounting frame is equipped with a shielding frame, the air duct is equipped with a connecting pipe, and a hollow tube is connected through the connecting pipe. A movable rod is slidably connected to the inner cavity of the hollow tube, and a sealing plate is provided on the hollow tube. The end of the movable rod passes through the sealing plate and extends outward, and a fixed frame is keyed to the end of the fixed frame. The fixed frame is fixedly connected to the shielding frame. A spring is provided between the movable rod and the sealing plate. The movable rod is moved by the spraying of high-pressure extinguishing agent from the air tank, which in turn drives the fixed frame and the shielding frame to move, shielding the fan and keeping the generator set container in a sealed state to prevent the extinguishing agent from leaking from the top fan.

[0009] Preferably, the shielding frame has a U-shaped groove, and a fixed bracket is detachably connected to the top plate by bolts. The fixed bracket is provided with a rotating locking plate, and a spring is provided between the rotating locking plate and the fixed bracket. Through the locking cooperation of the U-shaped groove and the rotating locking plate, the shielding frame maintains its shielding function for the fan during fire extinguishing.

[0010] Preferably, multiple pressure relief windows are installed on the top panel to prevent the container from bursting due to excessive internal pressure.

[0011] Preferably, the bottom of the top plate is equipped with an electrically controlled winch and multiple lifting pulleys that are detachably bolted on. A steel wire rope is wound on the winch, and the free end of the steel wire rope passes around each lifting pulley along a predetermined path, and is finally rigidly connected to the lifting frame. The lifting frame and the gas storage tank are lifted by means of the winch, lifting pulleys and steel wire rope.

[0012] Preferably, the left and right side walls of the hoisting frame are provided with symmetrically distributed slots, and the left and right side walls of the mounting frame are slidably connected with positioning frames. The end of the positioning frame that passes through the inner side of the mounting frame is fixed with a wedge block. A spring is provided between the wedge block and the mounting frame. The wedge block engages with the adjacent slot. The positioning of the hoisting frame on the mounting frame is achieved by engaging the wedge block with the adjacent slot.

[0013] Preferably, the side wall of the hoisting frame is connected to a transversely arranged bidirectional lead screw, and a limiting frame corresponding to each installation unit is threaded onto the bidirectional lead screw. A gear is keyed to the end of the bidirectional lead screw, and a rack that meshes with the gear is fixed to the installation frame. By moving and positioning the hoisting frame, the gear and rack mesh and drive, and the bidirectional lead screw rotates in a controlled manner, driving the limiting frame to move and sealing the installation opening of the hoisting frame to prevent the gas storage tank from accidentally slipping off.

[0014] Beneficial effects: Compared with existing technologies, this device, by installing a fan on the top plate and a low-leakage, high-sealing valve at the connection interface of the connecting pipe, allows leaked gas to be discharged upwards to the top space of the container during routine operation and maintenance. This effectively prevents the gas from accumulating in the confined space and avoids health hazards such as respiratory irritation or pulmonary edema for maintenance personnel. In the event of a fire, the low-leakage, high-sealing valve automatically closes due to the high-pressure reverse sealing effect, preventing the extinguishing agent from leaking from the top. This allows the extinguishing agent to flow smoothly into the gas duct and be freely sprayed downwards through the nozzle to extinguish the fire. This gives the device the functions of leak monitoring, directional drainage, and intelligent spraying, enabling rapid fire suppression and effectively addressing the health threats posed by extinguishing agent leaks.

[0015] The extinguishing agent is diverted through the air duct and connecting pipe. A hollow tube is installed on the connecting pipe, forming an airflow path. The large amount of extinguishing agent sprayed from the gas tank creates thrust on the end face of the movable rod, driving the movable rod, fixed frame, and shielding frame to move laterally. This allows the shielding frame to completely cover the air inlets and outlets of all fans, achieving physical shielding. Before the extinguishing agent settles and covers the protected area, all potential leakage channels on the top of the container are actively sealed, keeping the generator container in a sealed state and preventing the extinguishing agent from leaking from the top fans.

[0016] Using winches, multiple lifting pulleys, and wire ropes, the lifting frame is lifted, allowing the gas tanks on the lifting frame to be pre-filled on the ground before being lifted to a high position. This fully utilizes the advantages of the fire extinguishing agent's settling and coverage, while also adapting to the compact environment inside the container, reducing the safety risks of manual high-altitude operations, and improving installation efficiency. Attached Figure Description

[0017] Figure 1 : A three-dimensional structural schematic diagram of the present invention; Figure 2 : A partial structural schematic diagram of the present invention; Figure 3 : A schematic diagram of the structure of the relevant components of this invention that enable the hoisting frame to be positioned at a high altitude; Figure 4 This invention provides a schematic diagram of the structure of the components related to the hoisting of the lifting frame and the gas storage tank. Figure 5 : A schematic diagram of the structure of the relevant components of the present invention that drive the shielding frame to shield the fan; Figure 6 : A schematic diagram of the structure of the hollow tube, movable rod, spring II and other related components of this invention; Figure 7 : A schematic diagram of the structure at point A of this invention; In the diagram: 1-Top plate, 2-Fan, 3-Pressure relief window, 4-Mounting bracket, 5-Windlass, 6-Lifting pulley, 7-Lifting frame, 71-Slot, 8-Gas tank, 9-Positioning bracket, 91-Wedge block, 10-Spring 1, 11-Double-actuated screw, 12-Gear, 13-Rack, 14-Limiting bracket, 15-Connecting pipe, 16-Intelligent valve, 17-Low-leakage high-sealing valve, 18-Connecting pipe, 180-Hollow pipe, 181-Moving rod, 182-Spring 2, 183-Sealing plate, 19-Gas duct, 20-Shielding bracket, 21-Fixed bracket, 22-Fixed support, 23-Rotating positioning plate, 24-Spring 3. Detailed Implementation

[0018] Next, combine Figures 1-7 A specific embodiment of the present invention will be described in detail below.

[0019] refer to Figure 1 and Figure 5A smart fire prevention and extinguishing device for generator sets includes a top plate 1, which serves as the top load-bearing structure of the entire fire extinguishing system. Fixed to the top of a container, it possesses good structural strength and corrosion resistance. A mounting bracket 4 is detachably connected to the bottom of the top plate 1 via bolts. A lateral sliding lifting frame 7 is embedded in the mounting bracket 4. The lifting frame 7 has multiple laterally arranged installation units, each supporting a gas storage tank 8 pre-filled with heptafluoropropane extinguishing agent. The gas outlet of the tank integrates intelligent sensors (including temperature, smoke, and pressure sensors). The device has the function of autonomous fire identification and linkage activation. The bottom of the mounting frame 4 is equipped with a gas guide pipe 19, and multiple evenly distributed nozzles are provided on the gas guide pipe 19 to ensure that the extinguishing agent achieves complete flooding coverage in the protected area. One side of the gas guide pipe 19 is connected to a connecting pipe 15 corresponding to the gas storage tank 8, which is used to realize the gas path connection between the outlet of the gas storage tank 8 and the gas guide pipe 19. The connecting pipe 15 is equipped with an intelligent valve 16. This intelligent valve 16 is equipped with a burst diaphragm inside, which only ruptures instantaneously under the impact of high-pressure extinguishing agent, and remains sealed under normal conditions.

[0020] refer to Figure 5 Each of the connecting pipes 15 is equipped with a low-leakage high-sealing valve 17 at the top of its interface. This valve has the characteristics of "low-leakage opening and high-pressure sealing". Under normal conditions, the low-leakage high-sealing valve 17 is in the open state. If there is a small amount of gas leakage in the gas storage tank 8, the leaked gas will be discharged upward through the low-leakage high-sealing valve 17. When the extinguishing agent in the gas storage tank 8 is released under high pressure, the low-leakage high-sealing valve 17 will automatically seal. A fan 2 is installed on the top of the top plate 1. The fan 2 corresponds to each low-leakage high-sealing valve 17 and is electrically linked. Under normal conditions, both the low-leakage high-sealing valve 17 and the fan 2 are in the open state. When the fan 2 is running, it will draw out the gas inside the container. The airflow at the fan will cause the position of the fan 2 in the container to be in a low-pressure state. The small amount of gas leaked by the low-leakage high-sealing valve will be discharged outside the container with the airflow, avoiding accumulation in the working space.

[0021] Under normal operating conditions: During routine maintenance, leaked gas is discharged to the outside of the container through the combined action of the low-leakage high-sealing valve 17 and the fan 2, effectively preventing it from accumulating in the confined space and avoiding health hazards such as respiratory irritation or pulmonary edema to maintenance personnel. This mechanism enables proactive control of gas leaks in non-fire conditions, significantly improving safety.

[0022] In a fire emergency: When a fire occurs within the protected area, the intelligent sensor on the gas storage tank 8 monitors in real time any sudden temperature rise, excessive smoke concentration, or abnormal pressure changes, immediately triggering the opening of the outlet valve of the gas storage tank 8. High-pressure heptafluoropropane extinguishing agent, propelled by a driving gas (nitrogen), surges at high speed into the connecting pipe 15, generating an instantaneous high-pressure impact. This pressure rapidly ruptures the diaphragm, allowing the extinguishing agent to flow smoothly into the gas guide pipe 19, and then freely spray downwards through evenly distributed nozzles. Because heptafluoropropane vapor is six times denser than air, the extinguishing agent gas rapidly settles under gravity, spreading horizontally along the equipment layer, forming a total flooding fire extinguishing environment, achieving highly efficient suppression of electrical fires.

[0023] During this process, the low-leakage high-sealing valve 17 automatically closes due to the high-pressure reverse sealing effect, preventing the extinguishing agent from leaking from the top and ensuring that all extinguishing agent is used for fire extinguishing in the protected area. As the low-leakage high-sealing valve 17 closes, the linked fan 2 stops operating.

[0024] To ensure optimal fire extinguishing efficiency of heptafluoropropane gas in emergency fire situations, the protected area (generator container) must be kept sealed during the discharge process to prevent leakage of the extinguishing agent from the top fan, which would prevent the effective establishment of the extinguishing concentration, thereby affecting the fire extinguishing efficiency or even causing the firefighting to fail. Therefore, this device is designed with an automatic shielding mechanism, which is autonomously triggered by the release of extinguishing agent energy to dynamically seal the outlet of the top fan 2, significantly improving the system's fire extinguishing airtightness and response efficiency.

[0025] refer to Figure 5 The mounting bracket 4 is embedded with a shielding bracket 20 for blocking the fan 2. The air guide pipe 19 is connected to a connecting pipe 18, which serves as a fire extinguishing agent diversion channel and is pressurized synchronously with the main fire extinguishing pipeline. The connecting pipe 18 is connected to a hollow pipe 180. The air guide pipe 19, the connecting pipe 18, and the hollow pipe 180 constitute an airflow passage.

[0026] refer to Figure 6 A movable rod 181 is slidably connected to the inner cavity of the hollow tube 180. A sealing plate 183 is detachably connected to the end of the hollow tube 180 to seal the inner cavity of the hollow tube 180. The end of the movable rod 181 passes through the sealing plate 183 and extends outward to be keyed to a fixing frame 21. The fixing frame 21 is fixedly connected to the shielding frame 20. A spring 182 is provided between the end of the hollow tube 180 and the sealing plate 183. The hollow tube 180, the movable rod 181, the sealing plate 183 and the spring 182 together constitute a pneumatic piston structure.

[0027] In the absence of a fire signal, there is no pressure in the vent pipe 19. At this time, spring 2 182 is in a free state, the shielding frame 20 remains in its initial position, and does not obstruct fan 2. Fan 2 can start normally for daily ventilation and heat dissipation, and cooperate with low-leakage high-sealing valve 17 to discharge a small amount of leaked gas, ensuring the air quality inside the container and the heat dissipation needs of the equipment.

[0028] When a fire occurs, the valve of the gas storage tank 8 opens, and the high-pressure heptafluoropropane extinguishing agent rapidly enters the gas delivery pipe 19 and flows into the inner cavity of the hollow tube 180 through the connecting pipe 18. As the gas pressure rises rapidly, it acts on the end face of the movable rod 181, creating a thrust that overcomes the elastic force of the spring 182, driving the movable rod 181 to move laterally. This, in turn, drives the fixed frame 21 and the shielding frame 20 to move laterally until the shielding frame 20 completely covers all the air inlets and outlets of the fans 2, achieving physical shielding. This process is synchronized with the release of the extinguishing agent, and all potential leakage channels on the top of the container are actively sealed before the extinguishing agent settles and covers the protected area.

[0029] To ensure that in a fire emergency, the shielding frame 20 can completely seal the air inlet and outlet of the top fan 2 under the drive of the high-pressure heptafluoropropane extinguishing agent, and maintain this sealed state without being affected by airflow disturbance or vibration, this device is designed with a mechanical self-locking mechanism.

[0030] refer to Figure 5 and Figure 7 The shielding frame 20 has a U-shaped groove on its side wall. A fixed bracket 22 is detachably connected to the top plate 1 by bolts. A rotating locking plate 23 is slidably connected to the end of the fixed bracket 22 to form a movable hook. A spring 24 is provided between the rotating locking plate 23 and the fixed bracket 22. The end of the fixed bracket 22, the spring 24, and the rotating locking plate 23 together form a composite locking structure with guiding, yielding and self-locking functions. This structure engages with the U-shaped groove on the side wall of the shielding frame 20 to lock the shielding frame 20.

[0031] The shielding frame 20 moves laterally under the action of high-pressure heptafluoropropane extinguishing agent. The front end of the U-shaped groove of the shielding frame 20 contacts the outer edge of the rotating locking plate 23. Under the continuous thrust, the rotating locking plate 23 is squeezed and overcomes the torque of the spring 24, resulting in elastic rotation and displacement. When the shielding frame 20 completely covers all the air inlets and outlets of the fans 2, the U-shaped groove moves to directly below the rotating locking plate 23. At this time, under the action of the spring 24, the rotating locking plate 23 is driven to rotate, so that its end and the end of the fixed bracket 22 are embedded in the U-shaped groove, forming a mechanical locking closed loop. In this state, even if the pressure inside the hollow tube 180 fluctuates or drops, the shielding frame 20 is still rigidly locked in the closed position, ensuring that the container maintains a high degree of sealing, preventing the extinguishing gas from escaping, and improving the total flooding extinguishing efficiency.

[0032] After the fire is extinguished and there is no risk of reignition, the system enters the exhaust and reset phase. The operator enters the working area on top of the container through the safety passage and manually presses the rotating locking plate 23. The spring 24 is compressed, and the ends of the rotating locking plate 23 and the fixed bracket 22 are disengaged from the U-shaped groove. At this time, the shielding frame 20 and the fixed bracket 22 are unlocked, and the shielding frame 20 can move freely. Under the reset elastic force of the spring 182, the movable rod 181 retracts, driving the shielding frame 20 to retreat to the starting position. Then the pressing force on the rotating locking plate 23 is released, and the rotating locking plate 23 is reset under the action of the spring 24, ready for the next cycle. At this time, the air inlet and outlet of the fan 2 are fully exposed, preparing for the subsequent exhaust of residual and leaked gas.

[0033] refer to Figure 1 Considering that when the shielding frame 20 completely covers all the air inlets and outlets of the fans 2, the container is in a sealed state. During this period, the nozzles on the air duct 19 continuously spray high-pressure heptafluoropropane gas downwards, causing excessive air pressure inside the container and potentially leading to an explosion. To prevent structural damage caused by excessive internal pressure, this device has multiple pressure relief windows 3 installed on the top plate 1. The pressure relief windows 3 are prefabricated using high-strength composite materials and metal frames, with a preset mechanical rupture threshold. When the air pressure inside the container reaches the preset safety limit, the pressure relief window 3 automatically ruptures, forming an open channel. The overpressurized gas inside the container quickly escapes upwards to the outside atmosphere, achieving pressure balance.

[0034] As described in the background art, given that heptafluoropropane vapor density is six times that of air, the fire extinguishing system needs to adopt a "high-level storage, downward release" deployment method to fully utilize its settling coverage advantage. Simultaneously, to accommodate the compact internal space of the container, the gas storage tank 8 must be installed at the top. However, manual high-altitude operations pose safety risks and are inefficient; therefore, this device is designed as follows.

[0035] refer to Figure 2 The bottom of the top plate 1 is equipped with an electrically controlled winch 5 and multiple lifting pulleys 6, which are detachably installed by bolts. A steel wire rope is wound on the winch 5, and the free end of the steel wire rope passes around each lifting pulley 6 according to a predetermined path, and is finally rigidly connected to the lifting frame 7.

[0036] Lifting stage: Start winch 5 to release the wire rope and lower the lifting frame 7 to a safe height close to the ground for easy manual operation. The operator pushes the pre-filled heptafluoropropane gas tank 8 horizontally into the installation unit on the lifting frame 7 to complete mechanical positioning and initial fixation. Then, start winch 5 to wind up the wire rope. With the coordinated action of multiple lifting pulleys 6, the lifting frame 7 and the gas tank 8 it carries are steadily lifted until they reach the predetermined lifting position on the installation frame 4.

[0037] To ensure that the hoisting frame 7 can achieve high stability positioning after being raised to the predetermined hoisting position of the mounting frame 4, while also taking into account the need for quick disassembly and replacement during subsequent maintenance, the following design is made.

[0038] refer to Figure 3 and Figure 4 The hoisting frame 7 has symmetrically distributed slots 71 on its left and right side walls. The mounting frame 4 has a through-sliding locking frame 9 on its left and right side walls. The end of the locking frame 9 that passes through the inner side of the mounting frame 4 is fixed with a wedge block 91. A spring 10 is provided between the wedge block 91 and the mounting frame 4. The wedge block 91 engages with the adjacent slot 71.

[0039] After the hoisting frame 7 is lifted to the target position of the mounting frame 4 by the winch 5, it is not yet fully fixed. At this time, a lateral thrust (i.e., in the direction of the connecting pipe 15) needs to be applied to push the hoisting frame 7 to slide into the mounting frame 4.

[0040] As the lifting frame 7 moves laterally, the slot 71 on its side wall gradually approaches and contacts the inclined surface of the wedge block 91. Under the action of thrust, the wedge block 91 is compressed, the spring 10 deforms, and the locking frame 9 slides outward to achieve temporary clearance. When the lifting frame 7 slides to the predetermined position, the slot 71 aligns with the wedge block 91, and the locking frame 9 is pushed inward to reset under the action of the spring 10, so that the wedge block 91 automatically embeds into the slot 71, forming a mechanical lock. When it is necessary to replace the gas tank 8 or perform system maintenance, the operator can manually apply external force to pull the locking frame 9 outward simultaneously, so that the wedge block 91 disengages from the slot 71 and the locking state is released. Then the lifting frame 7 can be pulled out laterally to achieve quick disassembly.

[0041] Since the gas storage tank 8 is installed laterally in the installation unit of the hoisting frame 7, in order to prevent the gas storage tank 8 from slipping laterally from the installation unit due to vibration during firefighting operations, the side wall of the hoisting frame 7 is connected to a transversely arranged double-ended screw rod 11. The double-ended screw rod 11 is threadedly connected to a limiting frame 14 corresponding to the installation unit. By rotating the double-ended screw rod 11, the limiting frame 14 is driven to move and be positioned on the side wall of the installation unit of the hoisting frame 7, that is, abutting against the exposed end face of the gas storage tank 8, sealing the installation opening of the hoisting frame 7 and preventing the gas storage tank 8 from accidentally slipping off.

[0042] Meanwhile, the limiting frame 14 serves as a stop point for the lateral movement of the gas storage tank 8, ensuring that the gas storage tank 8 moves synchronously with the lifting frame 7 during the lateral advancement of the lifting frame 7, avoiding relative sliding. Through the rigid constraint of the limiting frame 14, the gas outlet of each gas storage tank 8 is precisely aligned with the corresponding connecting pipe 15, reducing the risk of eccentricity and misalignment, improving sealing reliability, and reducing the probability of minor leakage.

[0043] refer to Figure 4To drive the bidirectional lead screw 11 to rotate, the following linkage is performed: a gear 12 is keyed to the end of the bidirectional lead screw 11, and a rack 13 that meshes with the gear 12 is fixedly connected to the mounting frame 4. An external force pushes the hoisting frame 7 to slide laterally and complete the final positioning and locking with the mounting frame 4. The bidirectional lead screw 11 and the gear 12 move laterally synchronously. During this movement, the gear 12 meshes with the rack 13, driving the gear 12 to rotate, and then the bidirectional lead screw 11 rotates synchronously. The limiting frame 14 is driven to move and seals the mounting opening of the hoisting frame 7.

[0044] In summary, this device, by installing a fan 2 on the top plate 1 and a low-leakage high-sealing valve 17 at the interface of the connecting pipe 15, allows leaked gas to be discharged upwards to the top space of the container during routine operation and maintenance, effectively preventing its accumulation in the confined space and avoiding health hazards such as respiratory irritation or pulmonary edema to maintenance personnel. In the event of a fire, the low-leakage high-sealing valve 17 automatically closes due to the high-pressure reverse sealing effect, preventing the extinguishing agent from leaking from the top. This allows the extinguishing agent to flow smoothly into the gas guide pipe 19 and be freely sprayed downwards through the nozzle to extinguish the fire. This device combines the functions of leak monitoring, directional drainage, and intelligent spraying, enabling rapid fire suppression and effectively addressing the health threats posed by extinguishing agent leaks.

[0045] The extinguishing agent is diverted through the air duct 19 and the connecting pipe 18. A hollow pipe 180 is installed on the connecting pipe 18, so that the air duct 19, the connecting pipe 18, and the hollow pipe 180 form an airflow path. The large amount of extinguishing agent sprayed from the gas tank 8 creates thrust on the end face of the movable rod 181, driving the movable rod 181, the fixed frame 21, and the shielding frame 20 to move laterally. This allows the shielding frame 20 to completely cover all the air inlets and outlets of the fans 2, achieving physical shielding. Before the extinguishing agent settles and covers the protected area, all potential leakage channels on the top of the container are actively sealed, keeping the generator container in a sealed state and preventing the extinguishing agent from leaking from the top fans 2.

[0046] The hoisting frame 7 is lifted using winch 5, multiple lifting pulleys 6 and wire ropes, allowing the gas storage tank 8 on the hoisting frame 7 to be pre-filled on the ground before being lifted to a high position. This fully utilizes the advantages of the fire extinguishing agent's settling and coverage, while also adapting to the compact environment inside the container, reducing the safety risks of manual high-altitude operations, and improving installation efficiency.

[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A smart fire prevention and extinguishing device for generator sets, comprising a top plate (1), characterized in that: The top plate (1) is provided with an installation frame (4), the installation frame (4) is provided with a hoisting frame (7), the hoisting frame (7) is provided with multiple installation units, each unit is used to support a gas storage tank (8), the gas outlet of the tank is integrated with an intelligent sensor, the bottom of the installation frame (4) is provided with a gas guide pipe (19), the gas guide pipe (19) is provided with multiple evenly distributed nozzles, the gas guide pipe (19) is provided with a connecting pipe (15), the connecting pipe (15) is provided with an intelligent valve (16), the intelligent valve (16) is provided with a bursting diaphragm inside, the connecting pipe (15) is provided with a low leakage high sealing valve (17), the top of the top plate (1) is provided with a fan (2), the fan (2) corresponds one-to-one with each low leakage high sealing valve (17) and is electrically linked.

2. The intelligent fire prevention and extinguishing device for generator sets according to claim 1, characterized in that: The mounting frame (4) is provided with a shielding frame (20), the air duct (19) is provided with a connecting pipe (18), a hollow tube (180) is connected through the connecting pipe (18), a movable rod (181) is slidably connected to the inner cavity of the hollow tube (180), a sealing plate (183) is provided on the hollow tube (180), the end of the movable rod (181) passes through the sealing plate (183) and the end extending outward is keyed to a fixing frame (21), the fixing frame (21) is fixedly connected to the shielding frame (20), and a spring (182) is provided between the movable rod (181) and the sealing plate (183).

3. The intelligent fire prevention and extinguishing device for generator sets according to claim 2, characterized in that: The shielding frame (20) has a U-shaped groove, and the top plate (1) is connected to a fixed bracket (22) by bolts. The fixed bracket (22) is provided with a rotating locking plate (23), and a spring (24) is provided between the rotating locking plate (23) and the fixed bracket (22).

4. The intelligent fire prevention and extinguishing device for generator sets according to claim 1, characterized in that: Multiple pressure relief windows (3) are installed on the top plate (1).

5. The intelligent fire prevention and extinguishing device for generator sets according to claim 4, characterized in that: The bottom of the top plate (1) is equipped with an electrically controlled winch (5) and multiple lifting pulleys (6) that are detachably bolted. A wire rope is wound on the winch (5), and the free end of the wire rope passes around each lifting pulley (6) according to a predetermined path and is finally rigidly connected to the lifting frame (7).

6. The intelligent fire prevention and extinguishing device for generator sets according to claim 5, characterized in that: The hoisting frame (7) has symmetrically distributed slots (71) on its left and right side walls. The mounting frame (4) has a slotting frame (9) that slides through its left and right side walls. The slotting frame (9) has a wedge block (91) fixed to the end of its end that passes through the inner side of the mounting frame (4). A spring (10) is provided between the wedge block (91) and the mounting frame (4). The wedge block (91) engages with the adjacent slot (71).

7. The intelligent fire prevention and extinguishing device for generator sets according to claim 6, characterized in that: The side wall of the hoisting frame (7) is connected to a transversely arranged bidirectional screw (11), and a limit frame (14) corresponding to the installation unit is threadedly connected to the bidirectional screw (11). A gear (12) is keyed to the end of the bidirectional screw (11), and a rack (13) that meshes with the gear (12) is fixedly connected to the installation frame (4).

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