High-air-tight fireproof air control door and safety control method thereof

Abstract

The present application relates to the technical fields of fluid control, in particular to a high-air-tight fireproof air regulating door and a safety control method thereof, comprising: a shell, a inner shell is fixedly sleeved in the shell, and a partition ring is fixedly connected to opposite surfaces of the shell and the inner shell, dividing the shell into two independent zones; a sealing mechanism, comprising a ventilation assembly arranged in the inner shell for guiding airflow circulation, a plurality of ventilation column assemblies and a limiting assembly. Through the ventilation assembly, the ventilation column assembly, the limiting assembly and the flow limiting assembly in the sealing mechanism, the airflow and the fire can be separated and cut off when a fire occurs, so that the subsequent liquid injection mechanism can inject a liquid with heat insulation and fire resistance into the inner part. Through the cooperative work of the above-mentioned various assemblies, comprehensive fire protection measures can be provided, a multi-level fire protection system is formed to achieve high air tightness, thereby effectively preventing the fire from spreading between different areas through the ventilation system and minimizing the loss caused by the fire.

Description

Technical Field

[0001] This invention relates to the field of fluid control technology, specifically to a high-airtightness fireproof air regulating door and its safety control method. Background Technology

[0002] For warehouses storing flammable, explosive, or important materials, high-airtightness fire-resistant dampers are a key component of the ventilation system. They ensure ventilation while also serving as fire-resistant partitions to prevent the spread of fire between different warehouse areas. For example, in chemical raw material warehouses, the proper installation of high-airtightness fire-resistant dampers can effectively control airflow, preventing the accumulation of flammable gases due to poor ventilation and thus avoiding fires or explosions, as exemplified by the damper regulating mechanism disclosed in publication number CN108194646A.

[0003] Existing high-airtight fireproof air-regulating doors typically detect fire first using sensors, and then achieve fire separation and cut-off functions through electromechanical interlocking, pneumatic interlocking, hydraulic interlocking, etc. However, these fire separation and cut-off functions are usually controlled by electronic means. These types of fireproof ventilation doors are highly dependent on power supply. In the event of a fire and power outage, the electrical control interlocking device will not function properly, and the fireproof ventilation door will not be able to close in time. The fire will then spread to other areas through the ventilation system, posing a serious threat to flammable, explosive or important materials in the warehouse. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this invention provides a high-airtight fireproof air-regulating door and its safety control method, which effectively solves the problem that existing technologies typically control the fire isolation and shut-off function of high-airtight fireproof air-regulating doors electronically, causing the electronically controlled interlocking device to malfunction in the event of a fire or power outage.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a high airtight fireproof air-regulating door, comprising: The outer shell has an inner shell coaxially and fixedly sleeved inside it. The outer shell and the inner shell are fixedly connected to a dividing ring that separates the upper and lower parts of the outer shell. The dividing ring divides the upper and lower parts of the outer shell into an upper dividing area and a lower dividing area. The sealing mechanism includes a venting component, multiple venting column assemblies, and a limiting component disposed inside the inner shell for guiding airflow. The venting component, multiple venting column assemblies, and the limiting component are all located in the lower partition area. The inner shell is provided with a flow-limiting component that only allows gas to pass through, and the flow-limiting component is located in the upper partition area. The venting component and the flow-limiting component form a filling area inside the inner shell. The liquid injection mechanism has a pair of symmetrically distributed liquid injection mechanisms. Each liquid injection mechanism includes a protective shell fixedly connected to the outer periphery of the outer shell. Inside the protective shell, a piston and a liquid storage tank are arranged sequentially from top to bottom. Multiple support columns are fixedly connected to the top of the protective shell. A steam box is fixedly connected to the end of each support column away from the protective shell. The steam box stores water. A steam distribution component for steam diversion is provided on the top of the steam box. A heating component for heating water is provided inside the steam box.

[0006] Preferably, the ventilation assembly includes a base plate fixedly connected to the inner circumferential surface of the inner shell. The top of the base plate has multiple air holes and at least two pairs of air distribution holes, and the inner diameter of the air distribution holes is larger than that of the air holes. Each ventilation column assembly includes a hollow column fixedly connected to the inner wall of the air distribution hole. The outer circumferential surface of the hollow column has multiple exhaust holes arranged in a ring array, and the top edge of the hollow column has multiple slots arranged in a ring array.

[0007] Preferably, a heat-gathering block is fixedly connected to the center of the bottom of the base plate, and a wax column is fixedly connected to the center of the top of the base plate. The wax column penetrates the base plate and contacts the heat-gathering block. An elastic ring is fixedly connected to the top edge of the base plate. The limiting component is located at the end of the elastic ring away from the base plate. The limiting component includes a top plate fixedly connected to the end of the elastic ring away from the base plate, and the top plate is slidably connected to the inner circumferential surface of the inner shell. The top of the top plate has a column hole corresponding to the air distribution hole. The inner wall of the column hole is fixedly connected to a ring array of locking blocks corresponding to the locking slot. The end of the wax column away from the base plate is fixedly connected to the top plate. Two magnetic blocks with opposite magnetic properties are fixedly connected to the opposite surfaces of the base plate and the top plate. The two magnetic blocks correspond to the wax column and are sealed with wax by the wax column.

[0008] Preferably, the flow limiting component includes a perforated plate fixedly connected to the inner circumferential surface of the inner shell, a wind turbine generator is disposed on the top of the perforated plate, a connecting ring is fixedly connected to the outer circumferential surface of the perforated plate, a fixing plate is fixedly connected to the end of the connecting ring away from the perforated plate, the fixing plate is fixedly connected to the inner circumferential surface of the inner shell, and a plurality of airflow valves penetrating the fixing plate are fixedly connected in a ring array on the top of the fixing plate.

[0009] Preferably, the liquid storage tank is fixedly connected to the inner bottom of the protective shell. Multiple serrated baffles are fixedly connected in a ring array on the top of the inner circumferential surface of the protective shell. The piston is located above the serrated baffles and is airtightly slidably connected to the inner circumferential surface of the protective shell. Multiple pushers are fixedly connected in a rectangular array on the side of the piston facing the liquid storage tank. The ends of each pusher away from the piston contact the top of the liquid storage tank. A transmission pipe is fixedly connected to the bottom of the protective shell. The end of the transmission pipe away from the protective shell is connected to a flow-blocking assembly. The flow-blocking assembly includes a flow-blocking box fixedly connected to the outer circumferential surface of the outer shell. The flow-blocking box has an input end and an output end. The transmission pipe is connected to the input end of the flow-blocking box. A flow-blocking plate is fixedly connected to the inner center of the flow-blocking box. A connecting pipe is fixedly connected to the output end of the flow-blocking box. The end of the connecting pipe away from the flow-blocking box penetrates the outer shell and inner shell and connects to the filling area.

[0010] Preferably, the top of the protective shell is fixedly connected to a gas-gathering pipe, the gas-gathering pipe has multiple input ends and one output end, and the output end of the gas-gathering pipe is connected to the inside of the protective shell through a pipe. The upper end face of the steam box is fixedly connected to a pressure-limiting valve, and the center position of the upper end face of the steam box is fixedly connected to a polymer breathable block. The gas distribution component corresponds to the position of the polymer breathable block. The gas distribution component includes a gas distribution pipe fixedly connected to the upper end face of the polymer breathable block. The gas distribution pipe has multiple output ends and one input end, and the input end of the gas distribution pipe is connected to the polymer breathable block through a pipe. The number of output ends of the gas distribution pipe corresponds to the number of input ends of the gas-gathering pipe. Each output end of the gas distribution pipe is fixedly connected to a conduit, and the end of each conduit away from the gas distribution pipe is connected to the corresponding input end of the gas-gathering pipe.

[0011] Preferably, the steam assembly includes a heating block fixedly connected to the center of the heating box, with multiple convex balls fixedly connected in a rectangular array around the edges of the heating block, and heat-conducting rods fixedly connected to the center positions of the heating block. A heat-concentrating cover corresponding to the heat-conducting rods is fixedly connected in a ring array on the outer circumference of the steam box, and the end of each heat-conducting rod away from the heating block penetrates the steam box and contacts the heat-concentrating cover at the corresponding position.

[0012] Preferably, the device further includes a damper mechanism, which includes a fixed frame fixedly connected to the top of the outer shell and connected to the inner shell. The inner walls of the fixed frame on opposite sides are provided with mounting grooves, and each mounting groove is provided with a magnetic rod. Electromagnetic actuators are fixedly connected to the fixed frame and the mounting grooves on opposite sides. The magnetic rods are electrically connected to the electromagnetic actuators, and the electromagnetic actuators are electrically connected to the wind turbine. A damper is rotatably connected to the inner center of the fixed frame. The damper has a rotating rod and multiple damper plates, and a magnetic strip is fixedly connected to the end of each damper plate away from the rotating rod.

[0013] A safety control method for a high-airtightness fireproof air-regulating door, which utilizes the heat generated during a fire to cut off the fireproof air-regulating door, and uses a liquid to achieve heat insulation and flame retardancy after the fireproof air-regulating door is cut off, specifically including the following steps: Cutting off the fireproof air damper: When a fire occurs, the hot airflow enters the inner shell and comes into contact with the ventilation component. The ventilation component absorbs the heat from the fire and causes the limiting component, ventilation column component and ventilation component to merge, thereby cutting off the inner shell to prevent the airflow from flowing inside the inner shell and achieving the purpose of cutting off the fire airflow. Heat insulation and flame retardancy: The heat from the fire is simultaneously absorbed by the steam box and transferred to the heating component. The heating component uses the transferred heat to heat the water stored in the steam box, thereby heating the water into steam. The steam then enters the gas distribution component, which concentrates the steam and transfers it to the protective shell. This allows the steam to drive the piston to squeeze the liquid storage tank, causing the liquid in the storage tank to enter the filling area.

[0014] The technical solution provided by this invention has the following advantages compared with the known prior art: 1. This high-airtightness fireproof air-regulating door, through its sealing mechanism consisting of a ventilation component, a ventilation column component, a limiting component, and a flow-limiting component, can isolate and cut off airflow from fire during a fire. Specifically, the ventilation component, ventilation column component, and limiting component work together to automatically shut off ventilation during a fire, thus preventing airflow from passing through the fireproof air-regulating door. The flow-limiting component, while isolating airflow from fire, forms a filling zone with the ventilation component, ventilation column component, and limiting component, facilitating the subsequent injection of a heat-insulating and flame-retardant liquid. Through the coordinated work of these components, comprehensive fire protection measures are provided, from isolating airflow to injecting heat-insulating and flame-retardant liquid, forming a multi-layered, high-airtightness fireproof system. This effectively prevents the spread of fire between different areas through the ventilation system, minimizing fire damage.

[0015] 2. This high-airtightness fireproof damper, through the cooperation of the piston, heat-collecting hood, and heating component in the liquid injection mechanism, can inject the liquid stored in the storage tank into the filling area in the event of a fire, thereby enhancing the equipment's fire-blocking function. The heat-collecting hood absorbs heat during a fire and transfers it to the heating component, which heats the water stored in the steam tank to generate steam. Due to the sealed nature of the steam tank, as steam is continuously generated, it transforms into high-pressure steam and is transmitted to the protective shell through the gas distribution component. This pushes the piston to compress the storage tank, injecting the liquid into the filling area, thus enhancing the equipment's fire-blocking function. It effectively utilizes heat for self-drive, improving response speed and equipment safety and reliability. It is also adaptable to various fire scenarios and has multi-functional application potential.

[0016] 3. This high-airtightness fireproof adjustable damper, through the interaction of the damper, magnetic rod, and magnetic strip in the damper mechanism, achieves the function of adjusting the airflow in the equipment by magnetically controlling the resistance when the damper rotates. Specifically, controlling the rotation speed of the damper controls the airflow speed in the equipment, while the magnetic rod and magnetic strip create resistance to the rotation of the damper, thereby reducing the airflow speed in the equipment. By controlling the rotation speed of the damper to regulate the airflow speed, and the resistance generated by the magnetic rod and magnetic strip to reduce the airflow speed, the airflow can be precisely controlled to meet different ventilation needs, while ensuring the performance of the fireproof adjustable damper. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the inner shell of the present invention; Figure 4 This is a schematic diagram of the ventilation component of the present invention; Figure 5 This is a schematic diagram of the ventilation column assembly of the present invention; Figure 6 This is a schematic diagram of the structure of the limiting component of the present invention; Figure 7 This is a schematic diagram of the current limiting component of the present invention; Figure 8 This is a schematic diagram of the liquid injection mechanism of the present invention; Figure 9 This is a schematic diagram of the internal structure of the liquid injection mechanism of the present invention; Figure 10 This is a schematic diagram of the heating assembly of the present invention; Figure 11 This is a schematic diagram of the flow interception component of the present invention; Figure 12 This is a schematic diagram of the structure of the air damper mechanism of the present invention.

[0019] Reference numerals: 1. Outer shell; 11. Inner shell; 12. Separator ring; 2. Sealing mechanism; 21. Ventilation assembly; 211. Base plate; 212. Air vent; 213. Air distribution hole; 214. Heat-gathering block; 215. Wax column; 22. Elastic ring; 23. Ventilation column assembly; 231. Hollow column; 232. Exhaust hole; 233. Slot; 24. Limiting assembly; 241. Top plate; 242. Column hole; 243. Locking block; 244. Magnetic block; 25. Flow limiting assembly; 251. Perforated plate; 252. Wind turbine; 253. Connecting ring; 254. Fixing plate; 255. Airflow valve; 3. Liquid injection mechanism; 31. Protective shell; 32. 1. Serrated barrier block; 312. Transmission pipe; 32. Piston; 321. Push column; 33. Gas gathering pipe; 34. Steam box; 35. Pressure limiting valve; 36. Polymer breathable block; 37. Gas distribution assembly; 371. Gas distribution pipe; 372. Conduit; 38. Heat gathering cover; 39. Heating assembly; 391. Heating block; 392. Convex ball; 393. Heat-conducting rod; 310. Flow interception assembly; 3101. Flow interception box; 3102. Flow interception plate; 3103. Connecting pipe; 3110. Liquid storage tank; 4. Air regulating damper mechanism; 41. Fixing frame; 42. Mounting groove; 43. Magnetic rod; 44. Air damper; 45. Magnetic strip; 46. Electromagnetic actuator. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only 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.

[0021] The present invention will be further described below with reference to embodiments.

[0022] Example: Refer to Figures 1 to 12 A high-airtightness fireproof air-regulating door, comprising: The outer shell 1 has an inner shell 11 coaxially fixedly sleeved inside it. The outer shell 1 and the inner shell 11 are fixedly connected to the opposite surfaces of the outer shell 1 and the inner shell 11. The dividing ring 12 divides the outer shell 1 into an upper dividing area and a lower dividing area. The sealing mechanism 2 includes a ventilation component 21, multiple ventilation column assemblies 23 and a limiting component 24 disposed inside the inner shell 11 for guiding airflow. The ventilation component 21, multiple ventilation column assemblies 23 and the limiting component 24 are all located in the lower partition area. The inner shell 11 is provided with a flow limiting component 25 that only allows gas to pass through, and the flow limiting component 25 is located in the upper partition area. The ventilation component 21 and the flow limiting component 25 form a filling area inside the inner shell 11. Liquid injection mechanism 3, which has a pair and is symmetrically distributed, includes a protective shell 31 fixedly connected to the outer periphery of the outer shell 1. Inside the protective shell 31, a piston 32 and a liquid storage tank 3110 are arranged sequentially from top to bottom. Multiple support columns are fixedly connected to the top of the protective shell 31. A steam box 34 is fixedly connected to the end of each support column away from the protective shell 31. The steam box 34 stores water. A steam distribution component 37 for distributing steam is arranged on the top of the steam box 34. A heating component 39 for heating water is arranged inside the steam box 34.

[0023] By utilizing the ventilation component 21, ventilation column component 23, and limiting component 24 in the lower partition area of ​​the sealing mechanism 2, airflow is achieved within the inner shell 11 under normal conditions. Combined with the flow limiting component 25, it achieves the function of blocking the fire airflow in the event of a fire, thereby preventing the fire airflow from flowing through the inner shell 11 to other areas. The liquid injection mechanism 3 can use the heat during a fire as an energy source to inject liquid into the filling area formed by the ventilation component 21, ventilation column component 23, limiting component 24, and flow limiting component 25, thereby enhancing the blocking effect on the fire airflow.

[0024] Reference Figures 4 to 5 The ventilation assembly 21 includes a base plate 211 fixedly connected to the inner circumferential surface of the inner shell 11. The top of the base plate 211 is provided with a plurality of air holes 212 and at least two pairs of air distribution holes 213, and the inner diameter of the air distribution holes 213 is larger than that of the air holes 212. Each ventilation column assembly 23 includes a hollow column 231 fixedly connected to the inner wall of the air distribution hole 213. The outer circumferential surface of the hollow column 231 is provided with a plurality of exhaust holes 232 in an annular array, and the top edge of the hollow column 231 is provided with a plurality of slots 233 in an annular array.

[0025] A heat-gathering block 214 is fixedly connected to the center of the bottom of the base plate 211, and a wax column 215 is fixedly connected to the center of the top of the base plate 211. The wax column 215 penetrates the base plate 211 and contacts the heat-gathering block 214. An elastic ring 22 is fixedly connected to the top edge of the base plate 211. A limiting component 24 is located at the end of the elastic ring 22 away from the base plate 211. The limiting component 24 includes a top plate 241 fixedly connected to the end of the elastic ring 22 away from the base plate 211, and the top plate 241 is connected to the inner shell 11. The inner circumferential surface is slidably connected. The top plate 241 has a column hole 242 corresponding to the air distribution hole 213. The inner wall of the column hole 242 is fixedly connected with a ring array of card blocks 243 corresponding to the card slot 233. The end of the wax column 215 away from the bottom plate 211 is fixedly connected to the top plate 241. The opposite surfaces of the bottom plate 211 and the top plate 241 are fixedly connected with two magnetic blocks 244 with opposite magnetic properties. The two magnetic blocks 244 correspond to the wax column 215 in position, and the two magnetic blocks 244 are sealed with wax by the wax column 215.

[0026] By utilizing the air holes 212 and air distribution holes 213 in the base plate 211 of the ventilation component 21, airflow can be guided. The heat-gathering block 214 can absorb the heat during a fire and apply it to the wax column 215, causing the wax column 215 to melt. This causes the magnetic blocks 244 with opposite magnetic properties fixed in the base plate 211 and top plate 241 to attract each other, thereby completing the closure of the base plate 211 and top plate 241. At the same time, the ventilation column component 23 also blocks the column hole 242, thus achieving the effect of isolating the fire airflow when a fire occurs.

[0027] Reference Figure 5 , Figure 7 The flow limiting component 25 includes a perforated plate 251 fixedly connected to the inner circumferential surface of the inner shell 11. A wind turbine 252 is provided on the top of the perforated plate 251. A connecting ring 253 is fixedly connected to the outer circumferential surface of the perforated plate 251. A fixing plate 254 is fixedly connected to the end of the connecting ring 253 away from the perforated plate 251. The fixing plate 254 is fixedly connected to the inner circumferential surface of the inner shell 11. A plurality of airflow valves 255 penetrating the fixing plate 254 are fixedly connected in a ring array on the top of the fixing plate 254.

[0028] The flow restrictor 25 uses the airflow valve 255 in the flow restrictor 25 to allow gas to pass through. At the same time, the airflow passing through the airflow valve 255 passes through the holes of the perforated plate 251 and is discharged from the flow restrictor 25. The discharged gas drives the wind turbine 252 to rotate and generate current, providing power for the operation of the wind damper mechanism 4.

[0029] Reference Figures 8 to 11 The liquid storage tank 3110 is fixedly connected to the inner bottom of the protective shell 31. Multiple serrated baffle blocks 311 are fixedly connected in a ring array on the top of the inner circumferential surface of the protective shell 31. The piston 32 is located above the serrated baffle blocks 311, and the piston 32 is airtightly slidably connected to the inner circumferential surface of the protective shell 31. Multiple push pins 321 are fixedly connected in a rectangular array on the side of the piston 32 facing the liquid storage tank 3110. The end of each push pin 321 away from the piston 32 contacts the top of the liquid storage tank 3110. A transmission pipe 312 is fixedly connected to the bottom of the protective shell 31 for transmission... One end of the pipe 312 away from the protective shell 31 is connected to the flow-blocking assembly 310. The flow-blocking assembly 310 includes a flow-blocking box 3101 fixedly connected to the outer periphery of the outer shell 1. The flow-blocking box 3101 has an input end and an output end. The transmission pipe 312 is connected to the input end of the flow-blocking box 3101. A flow-blocking plate 3102 is fixedly connected to the inner middle of the flow-blocking box 3101. A connecting pipe 3103 is fixedly connected to the output end of the flow-blocking box 3101. One end of the connecting pipe 3103 away from the flow-blocking box 3101 passes through the outer shell 1 and the inner shell 11 and is connected to the filling area.

[0030] High-pressure steam in the steam box 34 is transferred to the protective shell 31, thereby pushing the piston 32 inside the protective shell 31 to slide. As the piston 32 slides, the liquid storage tank 3110 is squeezed by the piston 32, so that the liquid stored in the liquid storage tank 3110 is transferred through the intercepting assembly 310 into the filling area. However, the intercepting plate 3102 in the intercepting assembly 310 is made of polyvinyl chloride material. In the event of a fire, the intercepting plate 3102 may rupture, thereby causing the intercepting assembly 310 to lose its interception effect on the liquid in the liquid storage tank 3110.

[0031] Reference Figures 9 to 10 A gas-gathering pipe 33 is fixedly connected to the top of the protective shell 31. The gas-gathering pipe 33 has multiple input ends and one output end. The output end of the gas-gathering pipe 33 is connected to the interior of the protective shell 31 through a pipe. A pressure-limiting valve 35 is fixedly connected to the upper end face of the steam box 34. A polymer breathable block 36 is fixedly connected to the center position of the upper end face of the steam box 34. The gas distribution component 37 corresponds to the position of the polymer breathable block 36. The gas distribution component 37 includes a gas distribution pipe 371 fixedly connected to the upper end face of the polymer breathable block 36. The gas distribution pipe 371 has multiple output ends and one input end. The input end of the gas distribution pipe 371 is connected to the polymer breathable block 36 through a pipe. The number of output ends of the gas distribution pipe 371 corresponds to the number of input ends of the gas-gathering pipe 33. Each output end of the gas distribution pipe 371 is fixedly connected to a conduit 372. The end of each conduit 372 away from the gas distribution pipe 371 is connected to the corresponding input end of the gas-gathering pipe 33.

[0032] The pressure relief valve 35 can be used to control the air pressure in the steam box 34. When the air pressure in the steam box 34 reaches the maximum value of the pressure relief valve 35, the pressure relief valve 35 will release the air pressure in the steam box 34, thereby preventing the air pressure in the steam box 34 from exceeding the tolerance range of the steam box 34. The polymer breathable block 36 can prevent the liquid in the steam box 34 from flowing into the conduit 372 through the gas distribution pipe 371. The water vapor entering the conduit 372 will be collected by the gas gathering pipe 33 and transferred to the protective shell 31.

[0033] Reference Figure 10 The heating assembly 39 includes a heating block 391 fixedly connected to the center of the steam box 34. Multiple convex balls 392 are fixedly connected to the edges of the heating block 391 in a rectangular array. A heat-conducting rod 393 is fixedly connected to the center of the heating block 391. A heat-concentrating cover 38 corresponding to the heat-conducting rod 393 is fixedly connected to the outer circumference of the steam box 34 in a ring array. The end of each heat-conducting rod 393 away from the heating block 391 passes through the steam box 34 and contacts the heat-concentrating cover 38 at the corresponding position.

[0034] The heat-concentrating cover 38 can absorb the heat during a fire and transfer it to the heat-conducting rod 393. The heat-conducting rod 393 will then transfer the heat to the heating block 391, thereby giving the heating block 391 heat. The heating block 391 can heat the liquid stored in the steam box 34 to generate steam.

[0035] Reference Figure 12 It also includes a damper mechanism 4, which includes a fixed frame 41 fixedly connected to the top of the outer shell 1 and the fixed frame 41 is connected to the inner shell 11. The inner walls of the fixed frame 41 on both sides are provided with mounting grooves 42. Each mounting groove 42 is provided with a magnetic rod 43. Electromagnetic actuators 46 are fixedly connected to the sides of the fixed frame 41 and the mounting grooves 42 respectively. The magnetic rods 43 are electrically connected to the electromagnetic actuators 46 and the electromagnetic actuators 46 are electrically connected to the wind turbine generator 252. A damper 44 is rotatably connected to the inner center of the fixed frame 41. The damper 44 has a rotating rod and multiple damper plates. A magnetic strip 45 is fixedly connected to the end of each damper plate away from the rotating rod.

[0036] By utilizing the damper 44, magnetic rod 43, and magnetic strip 45 in the damper mechanism 4, the resistance when the damper 44 rotates is controlled by magnetic means, thereby realizing the air conditioning function of the equipment.

[0037] The specific operating principle of this embodiment is as follows: Step 1: In the event of a fire, the airflow passing through the equipment (in this solution, the equipment refers to the high-airtight fireproof damper) is a heated airflow. When the airflow flows within the inner shell 11 of the equipment, the heated airflow will first come into contact with the ventilation component 21 (subsequent heated airflow due to the fire is collectively referred to as hot airflow). This causes the hot airflow to flow into the space formed by the elastic ring 22 through the air hole 212 and the air distribution hole 213. The heat-gathering block 214 at the bottom of the base plate 211 in the ventilation component 21 absorbs the heat of the fire and acts on the wax column 215, causing the wax column 215 to melt. At this time, the magnetic blocks 244 with opposite magnetic properties fixed in the base plate 211 and the top plate 241 melt the wax column 215. The melting and loss of obstruction cause them to adhere to each other, driving the top plate 241 to slide downward along the inner circumference of the inner shell 11, thus closing the bottom plate 211 and the top plate 241. At the same time, the hollow column 231 in the ventilation column assembly 23 will block the column hole 242 on the top plate 241, thereby achieving the effect of the equipment to isolate the fire airflow and prevent the airflow from flowing in the inner shell 11. Meanwhile, the slot 233 on the top edge of the hollow column 231 and the block 243 on the inner wall of the column hole 242 engage with each other, limiting the penetration distance of the hollow column 231 through the column hole 242, thereby ensuring that the exhaust hole 232 of the hollow column 231 is always located within the space formed by the bottom plate 211, the top plate 241 and the elastic ring 22.

[0038] As the airflow within the inner shell 11 is blocked, the wind turbine 252 in the flow-limiting assembly 25 stops operating due to the loss of airflow. In the absence of a fire, the ventilation assembly 21, ventilation column assembly 23, and limiting assembly 24 do not restrict the airflow into the inner shell 11. The airflow continues upward into the inner shell 11 and reaches the flow-limiting assembly 25. Since the airflow valve 255 in the flow-limiting assembly 25 only allows gas to pass through (and the airflow valve 255 only allows gas to pass through to prevent the liquid stored in the subsequent liquid storage tank 3110 from flowing into the inner shell 11 from the flow-limiting assembly 25), the airflow can only flow from the airflow valve 255. Continuing forward at point 55, the airflow enters the perforated plate 251 area after passing through the airflow valve 255. The holes on the perforated plate 251 play a certain role in dispersing and limiting the airflow, allowing the airflow to be discharged evenly from the flow limiting component 25. The airflow discharged from the flow limiting component 25 has a certain kinetic energy, which drives the wind turbine 252 on the top of the perforated plate 251 to rotate. The wind turbine 252 generates current under the drive of the airflow, and this current is transmitted to the wind damper mechanism 4 to provide power support for the subsequent operation of the wind damper mechanism 4, ensuring that the wind damper mechanism 4 can work normally and realize functions such as regulating the ventilation volume of the equipment. In the event of a fire, the ventilation assembly 21, ventilation column assembly 23 and limiting assembly 24 will also block the airflow into the inner shell 11, and the wind turbine 252 will not generate current. As the wind turbine 252 stops generating current, the damper mechanism 4 will stop working due to the loss of power support (the function of the damper mechanism 4 after it stops working will be explained below).

[0039] Step 2: When a fire occurs, the sealing mechanism 2 blocks the airflow through the equipment. At the same time, the heat generated by the fire is absorbed by the heat-collecting cover 38 of the annular array on the outer periphery of the steam box 34. The heat-collecting cover 38 transfers the heat to the heat-conducting rod 393 in contact with it. The heat-conducting rod 393 further transfers the heat to the heating block 391 in the middle of the steam box 34. The convex balls 392 on the periphery of the heating block 391 may increase the heating area and promote heat transfer. After the heating block 391 is heated, it heats the water stored in the steam box 34. The water evaporates and produces water vapor.

[0040] As the water in the steam box 34 is heated and evaporates to produce more steam, the air pressure in the steam box 34 gradually increases. When the air pressure reaches the maximum value set by the pressure limiting valve 35 fixedly connected to the upper end of the steam box 34, the pressure limiting valve 35 will release some steam to prevent the air pressure in the steam box 34 from exceeding the maximum bearing capacity of the steam box 34 and damaging the equipment. The polymer breathable block 36 at the center of the upper surface of the steam box 34 allows water vapor to pass through but prevents liquid from entering the gas distribution pipe 371. Water vapor enters the gas distribution pipe 371 through the polymer breathable block 36. The gas distribution pipe 371 has multiple output ends, and water vapor is transmitted to the gas-gathering pipe 33 fixedly connected to the top of the protective shell 31 via conduits 372. The gas-gathering pipe 33 collects the steam input from the multiple conduits 372 and then transmits the high-pressure steam into the protective shell 31 through a pipeline. As the high-pressure steam enters the protective shell 31, the high-pressure steam will... The piston 32 is pushed to slide inside the protective shell 31. In order to restrict the piston 32, which is not subjected to high-pressure steam, to the inner top of the protective shell 31, a serrated block 311 is used to restrict the piston 32, which is not subjected to high-pressure steam. The serrated block 311 has a straight interval groove, which makes the serrated block 311 easy to break. As the piston 32 is subjected to high-pressure steam, the serrated block 311 that restricts the piston 32 breaks, so that the piston 32 can slide smoothly inside the protective shell 31 under the action of high-pressure steam.

[0041] As the piston 32 slides, the pusher 321 in the piston 32 will squeeze the liquid storage tank 3110. The liquid storage tank 3110 is made of flexible material. At the same time, the liquid storage tank 3110 stores liquids with oxygen-barrier and non-flammable properties, such as heptafluoropropane, flame retardant liquid, water glass, etc. As the liquid storage tank 3110 is squeezed, the liquid stored in the liquid storage tank 3110 flows into the interception component 310 through the transmission pipe 312 fixedly connected to the bottom of the protective shell 31. A flow-blocking plate 3102 is fixedly connected to the center of the flow-blocking box 3101 in the flow-blocking assembly 310. Under normal circumstances, the flow-blocking plate 3102 prevents liquid from passing through. However, since the flow-blocking plate 3102 is made of polyvinyl chloride, it may crack under high temperature conditions during a fire. When the flow-blocking plate 3102 cracks, the liquid can pass through the connecting pipe 3103 fixedly connected to the output end of the flow-blocking box 3101. The connecting pipe 3103 penetrates the outer shell 1 and the inner shell 11, allowing the liquid to finally enter the filling area formed by the ventilation assembly 21, the ventilation column assembly 23, the limiting assembly 24, and the flow-limiting assembly 25. The injected liquid can play a role in heat insulation and flame retardancy, further enhancing the isolation effect on the fire airflow and preventing the fire from spreading further through the ventilation system.

[0042] Step 3: The airflow entering the inner shell 11 will be discharged through the fixed frame 41. The fixed frame 41 in the damper mechanism 4 is provided with magnetic rods 43 in the mounting grooves 42 on the inner walls on both sides. The electromagnetic actuators 46 fixedly connected to the fixed frame 41 and the mounting grooves 42 on the corresponding sides are electrically connected to the magnetic rods 43. At the same time, the electromagnetic actuators 46 are electrically connected to the wind turbine generator 252. Under normal working conditions (when no fire occurs), the current generated by the wind turbine generator 252 supplies power to the electromagnetic actuators 46. The magnetic rod 43 is composed of a magnetic rod and a copper coil. The magnetic rod itself has the opposite magnetism to the magnetic strip 45. Therefore, when the electromagnetic actuator 46 supplies power to the copper coil, the magnetism of the magnetic rod itself will disappear. The stronger the power supply of the electromagnetic actuator 46, the better the demagnetization effect of the copper coil on the magnetic rod. Therefore, according to the ventilation requirements, a control signal is sent to the electromagnetic actuator 46 to adjust the magnitude of its input current to the copper coil, thereby controlling the degree of demagnetization of the magnetic rod. When it is necessary to increase the ventilation volume, the electromagnetic actuator 46 appropriately increases the power supply current to the copper coil to further weaken the magnetism of the magnetic rod, making it easier for the damper 44 to rotate, thereby increasing the airflow. Conversely, when it is necessary to reduce the ventilation volume, the electromagnetic actuator 46 reduces the power supply current to the copper coil, causing the magnetism of the magnetic rod to recover, increasing the effect on the magnetic strip 45, increasing the rotation resistance of the damper 44, and reducing the airflow.

[0043] When a fire occurs, after the sealing mechanism 2 cuts off the airflow, the wind turbine 252 stops working, and the electromagnetic actuator 46 loses its power supply. At this time, the copper coil in the magnetic rod 43 is no longer energized, and the magnetic rod restores its original magnetism, which is opposite to that of the magnetic strip 45. As a result, the magnetic strip 45 and the restored magnetic rod 43 attract each other due to magnetic attraction, which makes the damper 44 rotate with greater resistance. In this way, the damper 44 remains in its current position and works together with the sealing mechanism 2 to effectively prevent the fire from spreading and prevent the fire from spreading further through the ventilation system.

[0044] A safety control method for a high-airtightness fireproof air-regulating door, which utilizes the heat generated during a fire to cut off the fireproof air-regulating door, and uses a liquid to achieve heat insulation and flame retardancy after the fireproof air-regulating door is cut off, specifically including the following steps: Cutting off the fireproof air damper: When a fire occurs, the hot airflow enters the inner shell 11 and comes into contact with the ventilation component 21. The ventilation component 21 absorbs the heat when the fire occurs, causing the limiting component 24, the ventilation column component 23 and the ventilation component 21 to merge, thereby cutting off the inner shell 11 to prevent the airflow from flowing inside the inner shell 11, so as to achieve the purpose of cutting off the fire airflow. Heat insulation and flame retardancy: The heat from the fire is simultaneously absorbed by the steam box 34 and transferred to the heating component 39. The heating component 39 uses the transferred heat to heat the water stored in the steam box 34, thereby heating the water into steam. The steam will further enter the gas distribution component 37, which concentrates the steam and transfers it to the protective shell 31. The steam then drives the piston 32 to squeeze the liquid storage tank 3110, causing the liquid in the liquid storage tank 3110 to enter the filling area.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-airtightness fireproof air-regulating door, characterized in that, include: The outer shell (1) has an inner shell (11) coaxially fixedly sleeved inside the outer shell (1). The outer shell (1) and the inner shell (11) are fixedly connected to a dividing ring (12) that separates the upper and lower parts of the outer shell (1). The dividing ring (12) divides the outer shell (1) into an upper dividing area and a lower dividing area. The sealing mechanism (2) includes a ventilation component (21), multiple ventilation column components (23) and a limiting component (24) disposed inside the inner shell (11) for guiding airflow. The ventilation component (21), multiple ventilation column components (23) and the limiting component (24) are all located in the lower partition area. The inner shell (11) is provided with a flow limiting component (25) that only allows gas to pass through. The flow limiting component (25) is located in the upper partition area. The ventilation component (21) and the flow limiting component (25) form a filling area inside the inner shell (11). The liquid injection mechanism (3) has a pair and is symmetrically distributed. The liquid injection mechanism (3) includes a protective shell (31) fixedly connected to the outer periphery of the outer shell (1). The protective shell (31) has a piston (32) and a liquid storage tank (3110) arranged sequentially from top to bottom. The top of the protective shell (31) is fixedly connected to a plurality of support columns. The end of each support column away from the protective shell (31) is fixedly connected to a steam box (34). The steam box (34) stores water. The top of the steam box (34) is provided with a gas distribution component (37) for distributing steam. The inside of the steam box (34) is provided with a heating component (39) for heating water. The ventilation assembly (21) includes a base plate (211) fixedly connected to the inner circumferential surface of the inner shell (11). The top of the base plate (211) is provided with a plurality of air holes (212) and at least two pairs of air distribution holes (213), and the inner diameter of the air distribution holes (213) is larger than the inner diameter of the air holes (212). The ventilation column assembly (23) includes a hollow column (231) fixedly connected to the inner wall of the air distribution holes (213). The outer circumferential surface of the hollow column (231) is provided with a plurality of exhaust holes (232) in an annular array, and the top edge of the hollow column (231) is provided with a plurality of slots (233) in an annular array. A heat-gathering block (214) is fixedly connected to the center of the bottom of the base plate (211), and a wax column (215) is fixedly connected to the center of the top of the base plate (211). The wax column (215) penetrates the base plate (211) and contacts the heat-gathering block (214). An elastic ring (22) is fixedly connected to the top edge of the base plate (211). The limiting component (24) is located at the end of the elastic ring (22) away from the base plate (211). The limiting component (24) includes a top plate (241) fixedly connected to the end of the elastic ring (22) away from the base plate (211), and the top plate (241) is connected to the inner shell (1). 1) The inner circumferential surface is slidably connected. The top plate (241) has a column hole (242) corresponding to the air distribution hole (213) at its top. The inner wall of the column hole (242) is fixedly connected with a ring array of card blocks (243) corresponding to the card slot (233). The end of the wax column (215) away from the bottom plate (211) is fixedly connected to the top plate (241). The opposite surfaces of the bottom plate (211) and the top plate (241) are fixedly connected with two magnetic blocks (244) with opposite magnetic properties. The two magnetic blocks (244) correspond to the wax column (215) in position, and the two magnetic blocks (244) are sealed by the wax column (215).

2. The high airtight fireproof adjustable damper according to claim 1, characterized in that, The flow limiting component (25) includes a perforated plate (251) fixedly connected to the inner circumferential surface of the inner shell (11). A wind turbine generator (252) is provided on the top of the perforated plate (251). A connecting ring (253) is fixedly connected to the outer circumferential surface of the perforated plate (251). A fixing plate (254) is fixedly connected to the end of the connecting ring (253) away from the perforated plate (251). The fixing plate (254) is fixedly connected to the inner circumferential surface of the inner shell (11). A plurality of airflow valves (255) penetrating the fixing plate (254) are fixedly connected in a ring array on the top of the fixing plate (254).

3. The high airtight fireproof adjustable damper according to claim 1, characterized in that, The liquid storage tank (3110) is fixedly connected to the inner bottom of the protective shell (31). Multiple serrated baffles (311) are fixedly connected in a ring array on the top of the inner circumferential surface of the protective shell (31). The piston (32) is located above the serrated baffles (311), and the piston (32) is airtightly slidably connected to the inner circumferential surface of the protective shell (31). Multiple pushers (321) are fixedly connected in a rectangular array on the side of the piston (32) facing the liquid storage tank (3110). The end of each pusher (321) away from the piston (32) contacts the top of the liquid storage tank (3110). A transmission pipe (312) is fixedly connected to the bottom of the protective shell (31). One end of the tube (312) away from the protective shell (31) is connected to the intercepting assembly (310). The intercepting assembly (310) includes an intercepting box (3101) fixedly connected to the outer periphery of the shell (1). The intercepting box (3101) has an input end and an output end. The transmission tube (312) is connected to the input end of the intercepting box (3101). An intercepting plate (3102) is fixedly connected to the middle of the intercepting box (3101). The output end of the intercepting box (3101) is fixedly connected to a connecting pipe (3103). One end of the connecting pipe (3103) away from the intercepting box (3101) passes through the shell (1), the inner shell (11), and is connected to the filling area.

4. The high airtight fireproof adjustable damper according to claim 1, characterized in that, The top of the protective shell (31) is fixedly connected to a gas-gathering pipe (33), which has multiple input ends and one output end. The output end of the gas-gathering pipe (33) is connected to the inside of the protective shell (31) through a pipe. The upper end face of the steam box (34) is fixedly connected to a pressure-limiting valve (35). A polymer breathable block (36) is fixedly connected to the center of the upper end face of the steam box (34). The gas distribution component (37) corresponds to the position of the polymer breathable block (36). The gas distribution component (37) includes a fixed connection. On the upper surface of the polymer breathable block (36), there is a gas distribution pipe (371). The gas distribution pipe (371) has multiple output ends and one input end. The input end of the gas distribution pipe (371) is connected to the polymer breathable block (36) through a pipe. The number of output ends of the gas distribution pipe (371) corresponds to the number of input ends of the gas gathering pipe (33). Each output end of the gas distribution pipe (371) is fixedly connected to a conduit (372). The end of each conduit (372) away from the gas distribution pipe (371) is connected to the corresponding input end of the gas gathering pipe (33).

5. A high airtight fireproof adjustable damper according to claim 1, characterized in that, The heating assembly (39) includes a heating block (391) fixedly connected to the center of the steam box (34). Multiple convex balls (392) are fixedly connected to the edges of the heating block (391) in a rectangular array. A heat-conducting rod (393) is fixedly connected to the center of the heating block (391), and the end of each heat-conducting rod (393) away from the heating block (391) passes through the steam box (34) and contacts the corresponding heat-concentrating cover (38).

6. A high airtight fireproof adjustable damper according to claim 1, characterized in that, It also includes a damper mechanism (4), which includes a fixed frame (41) fixedly connected to the top of the outer shell (1) and the fixed frame (41) is connected to the inner shell (11). The inner walls of the fixed frame (41) on both sides are provided with mounting grooves (42). Each mounting groove (42) is provided with a magnetic rod (43). The fixed frame (41) and the mounting groove (42) are fixedly connected to electromagnetic actuators (46) on the corresponding sides. The magnetic rods (43) are electrically connected to the electromagnetic actuators (46), and the electromagnetic actuators (46) are electrically connected to the wind turbine (252). The middle part of the fixed frame (41) is rotatably connected to a damper (44). The damper (44) has a rotating rod and multiple damper plates. Each damper plate is fixedly connected to a magnetic strip (45) at the end away from the rotating rod.

7. A safety control method for a high-airtightness fireproof regulating door, applied to the high-airtightness fireproof regulating door as described in any one of claims 1-6, characterized in that, This control method utilizes the heat generated during a fire to cut off the fire-resistant air damper, and uses liquid to achieve heat insulation and flame retardancy after the fire-resistant air damper is cut off. Specifically, it includes the following steps: Cutting off the fireproof air damper: When a fire occurs, the hot airflow enters the inner shell (11) and comes into contact with the ventilation component (21). The ventilation component (21) absorbs the heat when the fire occurs, causing the limiting component (24), the ventilation column component (23) and the ventilation component (21) to merge, thereby cutting off the inner shell (11) to prevent the airflow from flowing inside the inner shell (11) and achieving the purpose of cutting off the fire airflow. Heat insulation and flame retardancy: The heat of the fire is simultaneously absorbed by the steam box (34) and transferred to the heating component (39). The heating component (39) uses the transferred heat to heat the water stored in the steam box (34), thereby heating the water into water vapor. The water vapor will further enter the gas distribution component (37). The gas distribution component (37) concentrates the water vapor and transfers it to the protective shell (31), so that the piston (32) is driven by the water vapor to squeeze the liquid storage tank (3110), so that the liquid in the liquid storage tank (3110) enters the filling area.

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