High-airtightness fireproof air adjusting door and safety control method thereof

Abstract

The invention relates to the technical field of fluid control, in particular to a high-airtightness fireproof air damper and a safety control method thereof.The high-airtightness fireproof air damper comprises an outer shell, an inner shell is fixedly sleeved with the outer shell, and the opposite faces of the outer shell and the inner shell are fixedly connected with a partition ring dividing the outer shell into an upper independent area and a lower independent area; the sealing mechanism comprises a ventilation assembly, a plurality of ventilation column assemblies and a limiting assembly, wherein the ventilation assembly is arranged in the inner shell and used for guiding airflow to circulate. By means of a ventilation assembly, a ventilation column assembly, a limiting assembly and a flow limiting assembly in the sealing mechanism, airflow and the fire can be separated and cut off when the fire happens, so that a liquid injection mechanism can conveniently inject heat-insulation and flame-retardant liquid into the sealing mechanism subsequently, and comprehensive fire protection measures can be provided through cooperative work of the multiple assemblies; a multi-layer fireproof system is formed, high air tightness is achieved, fire disasters are effectively prevented from being spread among different areas through a ventilation system, and losses caused by the fire disasters are reduced to the maximum extent.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid control, and particularly relates to a high-airtight fireproof damper and a safety control method thereof. Background Art

[0002] For warehouses storing flammable, explosive items or important materials, a high-airtight fireproof damper is a key component of the ventilation system. While ensuring ventilation and air exchange in the warehouse, it can serve as a fire separation measure to prevent the spread of fire between different warehouse areas. For example, in a chemical raw material warehouse, by reasonably setting high-airtight fireproof dampers, the ventilation air flow can be effectively controlled to avoid the accumulation of flammable gases caused by poor ventilation, thereby preventing fire or explosion accidents, such as the damper adjustment mechanism disclosed in Publication No. CN108194646A.

[0003] Existing high-airtight fireproof dampers usually first detect a fire through sensors, and then achieve the fire separation and truncation function through methods such as electric mechanical locking, pneumatic locking, and hydraulic locking. However, these fire separation and truncation functions are usually controlled in an electric control manner; Such fireproof dampers highly rely on power supply. In the event of a power outage during a fire, the electric control locking device will not be able to work properly, and the fireproof damper cannot be closed in time, allowing the fire to spread to other areas through the ventilation system, posing a serious threat to the flammable, explosive items or important materials in the warehouse. Summary of the Invention

[0004] Aiming at the above-mentioned drawbacks of the prior art, the present invention provides a high-airtight fireproof damper and a safety control method thereof, which can effectively solve the problem that the fire separation and truncation function of the high-airtight fireproof damper is usually controlled in an electric control manner, and in the event of a power outage during a fire, the electric control locking device will not be able to work properly.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: The present invention provides a high-airtight fireproof damper, including: A housing, an inner housing is coaxially and fixedly sleeved inside the housing, a partition ring that divides the housing into upper and lower parts is fixedly connected to the opposite surfaces of the housing and the inner housing, and the partition ring divides the housing into an upper partition area and a lower partition area; A sealing mechanism, the sealing mechanism includes a ventilation component, a plurality of ventilation column components and a limiting component for guiding the flow of air inside the inner housing, and one ventilation component, a plurality of ventilation column components and a limiting component are all located in the lower partition area. A flow limiting component that only allows gas to pass through is arranged inside the inner housing, and the flow limiting component is located in the upper partition area. The ventilation component and the flow limiting component form a filling area inside the inner housing; Liquid injection mechanism, there are a pair of the liquid injection mechanisms and they are symmetrically distributed. The liquid injection mechanism includes a protective shell fixedly connected to the outer peripheral surface of the housing. Inside the protective shell, a piston and a liquid storage barrel are arranged in sequence from top to bottom. The top of the protective shell is fixedly connected with a plurality of support columns. One end of each support column far away from the protective shell is fixedly connected with a steam box, and water is stored in the steam box. A gas distribution component for diverting steam is arranged at the top of the steam box, and a heating component for heating water is arranged inside the steam box.

[0006] Preferably, the ventilation component includes a bottom plate fixedly connected to the inner peripheral surface of the inner shell. A plurality of air holes and at least two pairs of sub-air holes are opened at the top of the bottom plate, and the inner diameter of the sub-air holes is larger than that of the air holes. Each ventilation column component includes a hollow column fixedly connected to the inner wall of the sub-air hole. A plurality of exhaust holes are annularly arranged on the outer peripheral surface of the hollow column, and a plurality of clamping grooves are annularly arranged at the top edge of the hollow column.

[0007] Preferably, a heat collecting block is fixedly connected to the central position of the bottom of the bottom plate, a wax column is fixedly connected to the central position of the top of the bottom plate, the wax column penetrates through the bottom plate and contacts the heat collecting block, an elastic ring is fixedly connected to the top edge of the bottom plate, and the limiting component is arranged at one end of the elastic ring far away from the bottom plate. The limiting component includes a top plate fixedly connected to one end of the elastic ring far away from the bottom plate, and the top plate is slidably connected to the inner peripheral surface of the inner shell. A column hole corresponding to the sub-air hole is opened at the top of the top plate, and clamping blocks corresponding to the clamping grooves are fixedly connected to the inner wall of the column hole in an annular array. One end of the wax column far away from the bottom plate is fixedly connected to the top plate. Two magnetic blocks with opposite magnetic poles are fixedly connected to the opposite surfaces of the bottom plate and the top plate. The two magnetic blocks correspond to the position of the wax column, and the two magnetic blocks are sealed with wax by the wax column.

[0008] Preferably, the flow limiting component includes a porous plate fixedly connected to the inner peripheral surface of the inner shell. A wind power generator is arranged on the top of the porous plate. A connecting ring is fixedly connected to the outer peripheral surface of the porous plate. One end of the connecting ring far away from the porous plate is fixedly connected to a fixing plate, and the fixing plate is fixedly connected to the inner peripheral surface of the inner shell. A plurality of air flow valves penetrating through the fixing plate are fixedly connected to the top of the fixing plate in an annular array.

[0009] Preferably, the liquid storage barrel is fixedly connected to the inner bottom of the protective shell. A plurality of serrated barrier blocks are fixedly connected in an annular array at the top of the inner peripheral surface of the protective shell. The piston is located above the serrated barrier blocks and is hermetically slidably connected to the inner peripheral surface of the protective shell. A plurality of push columns are fixedly connected in a rectangular array on the side of the piston facing the liquid storage barrel. The ends of the push columns away from the piston jointly contact the top of the liquid storage barrel. The bottom of the protective shell is fixedly communicated with a transmission pipe, and the end of the transmission pipe away from the protective shell is communicated with a throttling component. The throttling component includes a throttling box fixedly connected to the outer peripheral surface of the shell. The throttling box has an input end and an output end. The transmission pipe is communicated with the input end of the throttling box. A throttling plate is fixedly connected in the middle of the throttling box. The output end of the throttling box is fixedly communicated with a connecting pipe, and the end of the connecting pipe away from the throttling box penetrates through the shell, the inner shell and is communicated with the filling area.

[0010] Preferably, a gas collecting pipe is fixedly communicated with the top of the protective shell. The gas collecting pipe has a plurality of input ends and an output end, and the output end of the gas collecting pipe is communicated with the inside of the protective shell through a pipe. A pressure limiting valve is fixedly communicated with the upper end surface of the steam box. A high molecular breathable block is fixedly communicated with the center position of the upper end surface of the steam box. The gas distribution component corresponds to the position of the high molecular breathable block. The gas distribution component includes a gas distribution pipe fixedly communicated with the upper end surface of the high molecular breathable block. The gas distribution pipe has a plurality of output ends and an input end, and the input end of the gas distribution pipe is communicated with the high molecular 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 collecting pipe. Each output end of the gas distribution pipe is fixedly communicated with a conduit, and the end of each conduit away from the gas distribution pipe is communicated with the corresponding input end of the gas collecting pipe.

[0011] Preferably, the steam component includes a heating block fixedly connected to the middle of the heating box. A plurality of convex balls are fixedly connected in a rectangular array at the edges around the heating block. Heat conducting rods are fixedly connected to the center positions around the heating block. Heat collecting covers corresponding to the heat conducting rods are fixedly connected in an annular array on the outer peripheral surface of the steam box, and the end of each heat conducting rod away from the heating block penetrates through the steam box and contacts the corresponding heat collecting cover.

[0012] Preferably, it further includes an air damper mechanism. The air damper mechanism includes a fixed frame fixedly communicated with the top of the shell, and the fixed frame is communicated with the inner shell. Installation grooves are opened on the inner walls of the opposite sides of the fixed frame. A magnetic induction rod is arranged in each installation groove. Electromagnetic drivers are fixedly connected to the two sides of the fixed frame corresponding to the installation grooves. The magnetic induction rod is electrically connected to the electromagnetic driver, and the electromagnetic driver is electrically connected to the wind turbine generator. A wind damper is rotatably connected to the middle of the fixed frame. The wind damper has a rotating rod and a plurality of wind damper blades. Magnetic strips are fixedly connected to the ends of the wind damper blades away from the rotating rod.

[0013] A safety control method for a high-airtight fireproof damper. This control method cuts off the fireproof damper through the heat generated during a fire and uses a liquid to achieve heat insulation and fire retardancy after the fireproof damper is cut off. The specific steps are as follows: Cut-off of the fireproof damper: When a fire occurs, the airflow with heat enters the inner shell and contacts the ventilation component. The ventilation component absorbs the heat generated during the fire, causing the limit 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 blocking the fire airflow. Heat insulation and fire retardancy: The fire heat 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 its steam box, and then heats the water into water vapor. The water vapor will further enter the gas distribution component. The gas distribution component concentrates the water vapor and transfers it into the protective shell, realizing the use of water vapor as power to push the piston to squeeze the liquid storage barrel, so that the liquid in the liquid storage barrel enters the filling area.

[0014] The technical solution provided by the present invention has the following beneficial effects compared with the known prior art: 1. For this high-airtight fireproof damper, through the ventilation component, ventilation column component, limit component, and flow-limiting component in the sealing mechanism, the separation and cut-off of the airflow and fire during a fire can be achieved. Among them, through the mutual cooperation of the ventilation component, ventilation column component, and limit component, the ventilation function can be automatically closed during a fire, thereby isolating the airflow and fire from passing through the fireproof damper. When the ventilation component, ventilation column component, and limit component isolate the airflow and fire, the flow-limiting component will form a filling area with them, facilitating the subsequent liquid injection mechanism to inject heat-insulating and fire-retardant liquid into it. Through the coordinated work of the above-mentioned various components, a comprehensive fire protection measure can be provided. From isolating the airflow to injecting heat-insulating and fire-retardant liquid, a multi-level high-airtight fireproof system is formed, effectively preventing the spread of fire between different areas through the ventilation system and minimizing the losses caused by the fire.

[0015] 2. For this high-airtight fireproof damper, through the mutual cooperation of the piston, heat-gathering cover, and heating component in the liquid injection mechanism, the liquid stored in the liquid storage barrel can be injected into the filling area during a fire, thereby enhancing the cut-off function of the equipment against fire. Among them, the heat-gathering cover is used to absorb the heat generated during a fire and transfer the heat to the heating component. The heating component can heat the water stored in the steam box to generate steam. Since the steam box has a sealing function, as the steam is continuously generated, the steam will be converted into high-pressure steam and transmitted to the protective shell through the gas distribution component, thereby pushing the piston to squeeze the liquid storage barrel, and then injecting the liquid in the liquid storage barrel into the filling area, enhancing the fire cut-off function of the equipment. It can effectively utilize heat to achieve self-driving, improve the response speed, enhance the safety and reliability of the equipment, and can also adapt to various fire scenarios and has the potential for multi-functional applications.

[0016] 3. The high-airtightness fireproof air damper realizes the control of the resistance when the air damper rotates through the magnetic interaction between the air damper, the magnetic induction rod and the magnetic strip in the air damper mechanism, so as to realize the air volume adjustment function of the equipment. Among them, controlling the rotation speed of the air damper can control the flow rate of the air flow in the equipment, and the magnetic induction rod and the magnetic strip can cause resistance to the rotation of the air damper, thereby reducing the flow rate of the air flow in the equipment. By controlling the rotation speed of the air damper to regulate the air flow rate, the resistance generated by the magnetic induction rod and the magnetic strip can reduce the air flow speed, effectively realizing the precise regulation of the air flow, meeting different ventilation requirements, and ensuring the performance of the fireproof air damper at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of the whole of the present invention; Figure 2 It is a schematic top view structural diagram of the whole of the present invention; Figure 3 It is a schematic structural diagram of the interior of the inner shell of the present invention; Figure 4 It is a schematic structural diagram of the ventilation component of the present invention; Figure 5 It is a schematic structural diagram of the ventilation column component of the present invention; Figure 6 It is a schematic structural diagram of the limiting component of the present invention; Figure 7 It is a schematic structural diagram of the flow-limiting component of the present invention; Figure 8 It is a schematic structural diagram of the liquid injection mechanism of the present invention; Figure 9 It is a schematic structural diagram of the interior of the liquid injection mechanism of the present invention; Figure 10 It is a schematic structural diagram of the heating component of the present invention; Figure 11 It is a schematic structural diagram of the current-cutoff component of the present invention; Figure 12 It is a schematic structural diagram of the air damper mechanism of the present invention.

[0019] Reference numerals: 1, outer shell; 11, inner shell; 12, separating ring; 2, sealing mechanism; 21, ventilation component; 211, bottom plate; 212, air hole; 213, branch air hole; 214, heat accumulation block; 215, wax column; 22, elastic ring; 23, ventilation column component; 231, hollow column; 232, exhaust hole; 233, card slot; 24, limiting component; 241, top plate; 242, column hole; 243, clamping block; 244, magnet; 25, flow limiting component; 251, porous plate; 252, wind turbine; 253, connecting ring; 254, fixing plate; 255, air flow valve; 3, liquid injection mechanism; 31, protective shell; 311, serrated blocking block; 312, transmission pipe; 32, piston; 321, push column; 33, gas collecting pipe; 34, steam box; 35, pressure limiting valve; 36, polymer breathable block; 37, gas distribution component; 371, gas distribution pipe; 372, conduit; 38, heat accumulation cover; 39, heating component; 391, heating block; 392, convex ball; 393, heat conducting rod; 310, current intercepting component; 3101, current intercepting box; 3102, current intercepting plate; 3103, communicating pipe; 3110, liquid storage barrel; 4, air damper mechanism; 41, fixing frame; 42, installation groove; 43, magnetic induction rod; 44, air damper; 45, magnetic strip; 46, electromagnetic driver. Detailed implementation mode

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

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

[0022] Embodiment: Refer to Figures 1 to 12 , a high airtight fireproof air damper, comprising: An outer shell 1, an inner shell 11 is coaxially and fixedly sleeved inside the outer shell 1, and a separating ring 12 that divides the outer shell 1 into upper and lower parts is fixedly connected to the opposite surfaces of the outer shell 1 and the inner shell 11. The separating ring 12 divides the outer shell 1 into an upper separation area and a lower separation area; A sealing mechanism 2, the sealing mechanism 2 includes a ventilation component 21, a plurality of ventilation column components 23 and a limiting component 24 arranged inside the inner shell 11 for guiding the flow of air. Moreover, one ventilation component 21, a plurality of ventilation column components 23 and a limiting component 24 are all located in the lower separation area. A flow limiting component 25 that only allows gas to pass through is arranged inside the inner shell 11, and the flow limiting component 25 is located in the upper separation 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 peripheral surface of the housing 1. Inside the protective shell 31, a piston 32 and a liquid storage barrel 3110 are arranged in sequence from top to bottom. The top of the protective shell 31 is fixedly connected with a plurality of support columns, and one end of each support column away from the protective shell 31 is fixedly connected with a steam box 34, and water is stored in the steam box 34. A gas distribution component 37 for diverting steam is arranged at the top of the steam box 34, and a heating component 39 for heating water is arranged inside the steam box 34.

[0023] By using the ventilation component 21, the ventilation column component 23 and the limiting component 24 in the lower partition area of the sealing mechanism 2, the air flow inside the inner shell 11 can be realized under normal circumstances, and combined with the flow limiting component 25, when a fire occurs, the fire air flow can be cut off, so as to prevent the fire air flow from flowing to other areas through the inner shell 11. The liquid injection mechanism 3 can use the heat generated during a fire as an energy source to make the liquid injection mechanism 3 inject liquid into the filling area formed by the ventilation component 21, the ventilation column component 23, the limiting component 24 and the flow limiting component 25, thereby enhancing the effect of cutting off the fire air flow.

[0024] Refer to Figures 4 to 5 , the ventilation component 21 includes a bottom plate 211 fixedly connected to the inner peripheral surface of the inner shell 11. A plurality of air holes 212 and at least two pairs of sub-air holes 213 are opened on the top of the bottom plate 211, and the inner diameter of the sub-air holes 213 is larger than that of the air holes 212. Each ventilation column component 23 includes a hollow column 231 fixedly connected to the inner wall of the sub-air hole 213. A plurality of exhaust holes 232 are annularly arranged on the outer peripheral surface of the hollow column 231, and a plurality of card slots 233 are annularly arranged on the top edge of the hollow column 231.

[0025] A heat collecting block 214 is fixedly connected to the center position of the bottom of the bottom plate 211, and a wax column 215 is fixedly connected to the center position of the top of the bottom plate 211. The wax column 215 penetrates through the bottom plate 211 and contacts the heat collecting block 214. An elastic ring 22 is fixedly connected to the top edge of the bottom plate 211. The limiting component 24 is arranged at one end of the elastic ring 22 away from the bottom plate 211. The limiting component 24 includes a top plate 241 fixedly connected to one end of the elastic ring 22 away from the bottom plate 211, and the top plate 241 is slidably connected to the inner peripheral surface of the inner shell 11. A column hole 242 corresponding to the sub-air hole 213 is opened on the top of the top plate 241, and clamping blocks 243 corresponding to the card slots 233 are fixedly connected to the inner wall of the column hole 242 in an annular array. One end of the wax column 215 away from the bottom plate 211 is fixedly connected to the top plate 241. Two magnetic blocks 244 with opposite magnetic poles are fixedly connected to the opposite surfaces of the bottom plate 211 and the top plate 241. The two magnetic blocks 244 correspond to the position of the wax column 215, and the two magnetic blocks 244 are wax-sealed by the wax column 215.

[0026] By using the air holes 212 and the sub-air holes 213 in the bottom plate 211 of the ventilation component 21, the guidance of the air flow can be realized, and the heat absorption block 214 can absorb the heat generated during a fire and act on the wax column 215, thereby melting the wax column 215, enabling the magnetic blocks 244 with opposite magnetisms fixed in the bottom plate 211 and the top plate 241 to adsorb each other, thus completing the closing of the bottom plate 211 and the top plate 241. At the same time, the ventilation column component 23 also blocks the column holes 242, thereby realizing the effect of the device blocking the fire air flow during a fire.

[0027] Refer to Figure 5 、 Figure 7 As shown in FIGS. Figure 5 and Figure 7 , the flow-limiting component 25 includes a perforated plate 251 fixedly connected to the inner peripheral surface of the inner shell 11. A wind turbine 252 is arranged on the top of the perforated plate 251. A connecting ring 253 is fixedly connected to the outer peripheral surface of the perforated plate 251. One end of the connecting ring 253 away from the perforated plate 251 is fixedly connected to a fixing plate 254, and the fixing plate 254 is fixedly connected to the inner peripheral surface of the inner shell 11. A plurality of air flow valves 255 penetrating through the fixing plate 254 are fixedly connected to the top of the fixing plate 254 in a circumferential array.

[0028] By using the air flow valves 255 in the flow-limiting component 25 that only allow gas to pass through, and at the same time, the air flow passing through the air flow valves 255 is discharged from the flow-limiting component 25 under the holes of the perforated plate 251, the discharged gas will drive the wind turbine 252 to rotate and generate current, providing power for the operation of the air damper mechanism 4.

[0029] Refer to Figures 8 to 11 As shown in FIG. Figures 8 to 11 , the liquid storage barrel 3110 is fixedly connected to the inner bottom of the protective shell 31. A plurality of serrated blocking blocks 311 are fixedly connected to the top of the inner peripheral surface of the protective shell 31 in a circumferential array. The piston 32 is located above the serrated blocking blocks 311 and is in airtight sliding connection with the inner peripheral surface of the protective shell 31. A plurality of push columns 321 are fixedly connected to the side of the piston 32 facing the liquid storage barrel 3110 in a rectangular array. One end of each push column 321 away from the piston 32 is in contact with the top of the liquid storage barrel 3110. The bottom of the protective shell 31 is fixedly communicated with a transmission pipe 312. One end of the transmission pipe 312 away from the protective shell 31 is communicated with the flow intercepting component 310. The flow intercepting component 310 includes a flow intercepting box 3101 fixedly connected to the outer peripheral surface of the outer shell 1. The flow intercepting box 3101 has an input end and an output end. The transmission pipe 312 is communicated with the input end of the flow intercepting box 3101. A flow intercepting plate 3102 is fixedly connected to the middle of the flow intercepting box 3101. The output end of the flow intercepting box 3101 is fixedly communicated with a connecting pipe 3103. One end of the connecting pipe 3103 away from the flow intercepting box 3101 penetrates through the outer shell 1, the inner shell 11 and is communicated with the filling area.

[0030] The high-pressure steam in the steam box 34 is transferred into the protective shell 31, thereby pushing the piston 32 in the protective shell 31 to slide. As the piston 32 slides, the liquid storage barrel 3110 will be squeezed by the piston 32, so that the liquid stored in the liquid storage barrel 3110 is transferred through the throttling component 310 into the filling area. The throttle plate 3102 in the throttling component 310 is made of polyvinyl chloride material. In the event of a fire, the throttle plate 3102 will be at risk of rupture, thus causing the throttling component 310 to lose its throttling effect on the liquid in the liquid storage barrel 3110.

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

[0032] The pressure limiting valve 35 can be used to control the air pressure value in the steam box 34. When the air pressure value in the steam box 34 reaches the maximum value of the pressure limiting valve 35, the pressure limiting valve 35 will release the air pressure in the steam box 34, thereby preventing the air pressure value in the steam box 34 from exceeding the bearing range of the steam box 34. The high molecular breathable block 36 can prevent the liquid in the steam box 34 from flowing into the conduit 372 through the gas distribution pipe 371, and the water vapor entering the conduit 372 will be transmitted into the protective shell 31 through the collection of the gas collecting pipe 33.

[0033] Refer to Figure 10 , the heating component 39 includes a heating block 391 fixedly connected to the middle part inside the steam box 34. A plurality of convex balls 392 are fixedly connected in a rectangular array at the edges around the heating block 391. Heat conducting rods 393 are fixedly connected to the center positions around the heating block 391. Heat collecting covers 38 corresponding to the heat conducting rods 393 are fixedly connected in a circular array on the outer peripheral surface of the steam box 34, and one end of each heat conducting rod 393 away from the heating block 391 penetrates through the steam box 34 and contacts the heat collecting cover 38 at the corresponding position.

[0034] The heat collecting cover 38 can absorb the heat generated during a fire and transfer the heat to the heat conducting rod 393. The heat conducting rod 393 further transfers the heat to the heating block 391, enabling the heating block 391 to have heat. The heating block 391 can heat the liquid stored in the steam box 34, thereby generating water vapor.

[0035] Referring to Figure 12 , it further includes an air damper adjusting mechanism 4. The air damper adjusting mechanism 4 includes a fixed frame 41 fixedly connected to the top of the outer shell 1 and communicating with the inner shell 11. Installation grooves 42 are provided on the inner walls of the opposite sides of the fixed frame 41. Magnetic induction rods 43 are provided in each installation groove 42. Electromagnetic drivers 46 are fixedly connected to the two sides of the fixed frame 41 corresponding to the installation grooves 42. The magnetic induction rods 43 are electrically connected to the electromagnetic drivers 46, and the electromagnetic drivers 46 are electrically connected to the wind turbine generator 252. A damper 44 is rotatably connected to the middle part inside the fixed frame 41. The damper 44 has a rotating rod and multiple damper blades. Magnetic strips 45 are fixedly connected to the ends of each damper blade away from the rotating rod.

[0036] By using the damper 44, magnetic induction rods 43 and magnetic strips 45 in the air damper adjusting mechanism 4, the resistance when the damper 44 rotates is controlled magnetically, thereby realizing the air adjustment function of the device.

[0037] The operating principle of this embodiment is as follows: The first step: When a fire occurs, the air flow passing through the device (the device in this solution refers to the high-airtightness fireproof air damper) is a heat-bearing air flow. When the air flow flows inside the inner shell 11 of the device, the heat-bearing air flow will first come into contact with the ventilation component 21 (subsequently, the air flow with heat due to the fire is uniformly referred to as the hot air flow), so that the hot air flow flows into the space formed by the elastic ring 22 through the air holes 212 and the sub-air holes 213. The heat collecting block 214 at the bottom of the bottom plate 211 in the ventilation component 21 absorbs the heat of the fire and acts on the wax column 215, melting the wax column 215. At this time, the magnetic blocks 244 with opposite magnetic poles fixed on the bottom plate 211 and the top plate 241 adsorb each other because the wax column 215 melts and loses the barrier, driving the top plate 241 to slide downward along the inner circumference of the inner shell 11, realizing the closing of the bottom plate 211 and the top plate 241. At the same time, the hollow column 231 in the ventilation column component 23 will block the column hole 242 on the top plate 241, thereby realizing the blocking effect of the device on the fire air flow and preventing the air flow from flowing inside the inner shell 11. Meanwhile, the card slot 233 at the top edge of the hollow column 231 and the clamping block 243 on the inner wall of the column hole 242 are engaged with each other, limiting the penetration distance of the hollow column 231 through the column hole 242, so as to ensure that the exhaust hole 232 of the hollow column 231 is always located in the space formed by the bottom plate 211, the top plate 241 and the elastic ring 22.

[0038] Among them, as the flow of air in the inner shell 11 is blocked, the wind turbine 252 in the flow-limiting component 25 stops working due to the loss of air flow. When there is no fire, the ventilation component 21, the ventilation column component 23 and the limiting component 24 do not restrict the air flow from flowing into the inner shell 11, and the air flow that flows into the inner shell 11 continues to flow upward to reach the flow-limiting component 25. Since the air flow valve 255 in the flow-limiting component 25 only allows gas to pass through (and the air flow valve 255 only allows gas to pass through to prevent the liquid stored in the subsequent liquid storage barrel 3110 from flowing into the inner shell 11 through the flow-limiting component 25), the air flow can only continue to move forward from the air flow valve 255. After passing through the air flow valve 255, the air flow enters the porous plate 251 area. The holes on the porous plate 251 play a certain role in dispersing and limiting the air flow, so that the air flow is evenly discharged from the flow-limiting component 25. The air flow discharged from the flow-limiting component 25 has a certain kinetic energy, driving the wind turbine 252 at the top of the porous plate 251 to rotate. The wind turbine 252 generates an electric current under the drive of the air flow, and this electric current is transmitted to the air damper mechanism 4, providing power support for the subsequent operation of the air damper mechanism 4, ensuring that the air damper mechanism 4 can work normally, and realizing functions such as adjusting the ventilation volume of the equipment; Once a fire occurs, as the ventilation component 21, the ventilation column component 23 and the limiting component 24 also block the air flow from flowing into the inner shell 11, the wind turbine 252 will not generate an electric current either. As the wind turbine 252 stops generating an electric current, the air damper mechanism 4 stops working due to the loss of power support (the function after the air damper mechanism 4 stops working will be described below).

[0039] Second step: When a fire occurs, while the sealing mechanism 2 blocks the air flow from passing through the equipment, the heat generated by the fire will also be absorbed by the heat collecting covers 38 arranged in a circular array on the outer peripheral surface of the steam box 34. The heat collecting covers 38 transfer the heat to the heat conducting rods 393 in contact with them, and the heat conducting rods 393 further transfer the heat to the heating block 391 in the middle of the steam box 34. The convex balls 392 on the four peripheral edges of the heating block 391 may play a role in increasing the heat receiving area, etc., promoting heat transfer. After the heating block 391 is heated, it heats the water stored in the steam box 34, and the water evaporates to generate water vapor.

[0040] Among them, as the water in the steam box 34 is heated and evaporated to continuously generate more water vapor, 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 surface 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 range of the steam box 34 and damaging the equipment; The polymer breathable block 36 at the center of the upper end face of the steam box 34 allows water vapor to pass through but prevents liquid from entering the sub-air pipe 371. The water vapor passes through the polymer breathable block 36 and enters the sub-air pipe 371. The sub-air pipe 371 has multiple output ends, and the water vapor is transmitted to the collecting air pipe 33 fixedly connected to the top of the protective shell 31 through the conduits 372 fixedly connected to each output end. After the collecting air pipe 33 collects the steam input by the multiple conduits 372, the high-pressure steam is transmitted into the protective shell 31 through a pipeline. As the high-pressure steam is input into the protective shell 31, the high-pressure steam will push the piston 32 to slide inside the protective shell 31. In order to limit the piston 32 that is not affected by the high-pressure steam to the inner top of the protective shell 31, the serrated blocking block 311 is used to limit the piston 32 that is not affected by the high-pressure steam. The serrated blocking block 311 has a straight spacer groove, so that the serrated blocking block 311 is easy to break. As the piston 32 is affected by the high-pressure steam, the serrated blocking 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 the high-pressure steam.

[0041] Among them, as the piston 32 slides, the push column 321 in the piston 32 will squeeze the liquid storage bucket 3110. The liquid storage bucket 3110 is made of a flexible material. At the same time, the liquid storage bucket 3110 stores liquids with oxygen isolation and non-combustibility, such as: heptafluoropropane, flame retardant liquid, water glass, etc. As the liquid storage bucket 3110 is squeezed, the liquid stored in the liquid storage bucket 3110 flows into the throttling assembly 310 through the transmission pipe 312 fixedly connected to the bottom of the protective shell 31; A throttle plate 3102 is fixedly connected to the middle of the throttling box 3101 in the throttling assembly 310. Under normal circumstances, the throttle plate 3102 prevents liquid from passing through. However, since the throttle plate 3102 is made of polyvinyl chloride material, in a high-temperature fire environment, the throttle plate 3102 will crack. When the throttle plate 3102 cracks, the liquid can pass through the connecting pipe 3103 fixedly connected to the output end of the throttling box 3101. The connecting pipe 3103 penetrates through the outer shell 1 and the inner shell 11, so that the liquid finally enters the filling area composed of the ventilation assembly 21, the ventilation column assembly 23, the limiting assembly 24 and the flow limiting assembly 25. The injected liquid can play roles such as heat insulation and flame retardancy, further enhancing the effect of blocking the fire airflow and preventing the fire from spreading further through the ventilation system.

[0042] Step 3: The air flow entering the inner shell 11 will be discharged through the fixed frame 41. In the installation grooves 42 on the inner walls of the opposite sides of the fixed frame 41 in the air damper mechanism 4, there are magnetic induction rods 43. The electromagnetic drivers 46 fixedly connected to the two sides of the fixed frame 41 corresponding to the installation grooves 42 are electrically connected to the magnetic induction rods 43. At the same time, the electromagnetic drivers 46 are electrically connected to the wind turbine 252. In the normal working state (when there is no fire), the current generated by the wind turbine 252 powers the electromagnetic drivers 46; Among them, the magnetic induction rod 43 is composed of a magnetic rod and a copper coil. The magnetic rod itself has a magnetic property opposite to that of the magnetic strip 45. Therefore, when the electromagnetic driver 46 powers the copper coil, the magnetic property of the magnetic rod itself will disappear. The stronger the power supply of the electromagnetic driver 46, the better the demagnetization effect of the copper coil on the magnetic rod. Therefore, according to the ventilation requirement, a control signal is sent to the electromagnetic driver 46 to adjust the magnitude of the current input 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 driver 46 appropriately increases the power supply current to the copper coil, further weakening the magnetic property of the magnetic rod, making it easier for the air damper 44 to rotate, thereby increasing the air flow through-put; conversely, when it is necessary to reduce the ventilation volume, the electromagnetic driver 46 reduces the power supply current to the copper coil, restoring the magnetic property of the magnetic rod, increasing the effect on the magnetic strip 45, increasing the rotational resistance of the air damper 44, and reducing the air flow through-put.

[0043] When a fire occurs and the sealing mechanism 2 cuts off the air flow, the wind turbine 252 stops working and the electromagnetic driver 46 loses power supply. At this time, the copper coil in the magnetic induction rod 43 is no longer energized, and the magnetic rod restores its original magnetic property opposite to that of the magnetic strip 45. As a result, the magnetic strip 45 and the restored magnetic induction rod 43 are attracted to each other due to magnetic interaction, making it difficult for the air damper 44 to rotate. In this way, the air damper 44 remains in the current position and, together with the sealing mechanism 2, effectively prevents the spread of fire and prevents the fire from further spreading through the ventilation system.

[0044] A safety control method for a high-airtight fireproof air damper. This control method cuts off the fireproof air damper through the heat generated during a fire and uses a liquid to achieve the function of heat insulation and fire retardancy after the fireproof air damper is cut off. Specifically, it includes the following steps: Cut-off of the fireproof air damper: When a fire occurs, the airflow with heat enters the inner shell 11 and contacts the ventilation component 21. The ventilation component 21 absorbs the heat generated during the fire, causing the limit 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 in the inner shell 11 and achieving the purpose of cutting off the fire airflow. Heat insulation and fire 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 its steam box 34, and then heats the water into water vapor. The water vapor will further enter the air distribution component 37. The air distribution component 37 concentrates the water vapor and transfers it into the protective shell 31, achieving the purpose of using water vapor as power to push the piston 32 to squeeze the liquid storage barrel 3110, so that the liquid in the liquid storage barrel 3110 enters the filling area.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements 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 highly airtight fireproof damper, characterized in that: include: An outer shell (1), wherein an inner shell (11) is coaxially fixedly sleeved inside the outer shell (1), and a separation ring (12) is fixedly connected to the opposing surfaces of the outer shell (1) and the inner shell (11) for separating the outer shell (1) into an upper separation area and a lower separation area, wherein the separation ring (12) separates the outer shell (1) into an upper separation area and a lower separation area; A sealing mechanism (2), the sealing mechanism (2) comprising a vent assembly (21), a plurality of vent column assemblies (23) and a position limiting assembly (24) arranged inside the inner shell (11) for guiding airflow, wherein the vent assembly (21), the plurality of vent column assemblies (23) and the position limiting assembly (24) are all located in the lower partition area, a flow limiting assembly (25) for allowing only air to pass through is arranged inside the inner shell (11), and the flow limiting assembly (25) is located in the upper partition area, and the vent assembly (21) and the flow limiting assembly (25) form a filling area inside the inner shell (11); The liquid injection mechanism (3) has a pair of symmetrically arranged liquid injection mechanisms, the liquid injection mechanism (3) comprising a protective shell (31) fixedly connected to the outer peripheral surface of the outer shell (1), a piston (32) and a liquid storage barrel (3110) being arranged in sequence from top to bottom inside the protective shell (31), a plurality of support columns being fixedly connected to the top of the protective shell (31), one end of each support column away from the protective shell (31) being fixedly connected to a steam box (34), water being stored in the steam box (34), a gas separation component (37) for diverting steam being arranged at the top of the steam box (34), and a heating component (39) for heating water being arranged inside the steam box (34).

2. A high airtight fireproof damper according to claim 1, characterized in that: The ventilation assembly (21) comprises a bottom plate (211) fixedly connected to the inner circumference of the inner shell (11); a plurality of air holes (212) and at least two pairs of air separation holes (213) are provided on the top of the bottom plate (211); the inner diameter of the air separation hole (213) is larger than the inner diameter of the air hole (212); the ventilation column assembly (23) comprises a hollow column (231) fixedly connected to the inner wall of the air separation hole (213); a plurality of exhaust holes (232) are provided in an annular array on the outer circumference of the hollow column (231); and a plurality of slots (233) are provided in an annular array on the top edge of the hollow column (231).

3. The high airtight fireproof damper according to claim 2, characterized in that: A heat collecting block (214) is fixedly connected to the center position of the bottom of the bottom plate (211), a wax column (215) is fixedly connected to the center position of the top of the bottom plate (211), the wax column (215) passes through the bottom plate (211) and contacts the heat collecting block (214), an elastic ring (22) is fixedly connected to the top edge of the bottom plate (211), the limiting component (24) is arranged at the end of the elastic ring (22) away from the bottom plate (211), and the limiting component (24) comprises a top plate (241) fixedly connected to the end of the elastic ring (22) away from the bottom plate (211), and the top plate (241) is connected to the inner shell (1 1), the top of the top plate (241) is provided with a column hole (242) corresponding to the air distribution hole (213), the inner wall of the column hole (242) is fixedly connected with a clamping block (243) corresponding to the clamping groove (233) in an annular array, the end of the wax column (215) away from the bottom plate (211) is fixedly connected to the top plate (241), and 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) and the wax column (215) are located correspondingly, and the two magnetic blocks (244) are wax-sealed by the wax column (215).

4. The high airtight fireproof damper according to claim 1, characterized in that: The flow limiting assembly (25) comprises a porous plate (251) fixedly connected to the inner circumference of the inner shell (11); a wind turbine (252) is arranged on the top of the porous plate (251); a connecting ring (253) is fixedly connected to the outer circumference of the porous plate (251); an end of the connecting ring (253) away from the porous plate (251) is fixedly connected to a fixing plate (254); the fixing plate (254) is fixedly connected to the inner circumference of the inner shell (11); and a plurality of airflow valves (255) penetrating the fixing plate (254) are fixedly connected in an annular array on the top of the fixing plate (254).

5. The high airtight fireproof damper according to claim 1, characterized in that: The liquid storage barrel (3110) is fixedly connected to the inner bottom of the protective shell (31); a plurality of sawtooth-type blocking blocks (311) are fixedly connected in an annular array at the top of the inner circumference of the protective shell (31); the piston (32) is located above the sawtooth-type blocking blocks (311), and the piston (32) is airtightly slidably connected to the inner circumference of the protective shell (31); a plurality of push pins (321) are fixedly connected in a rectangular array on the side of the piston (32) facing the liquid storage barrel (3110); one end of each push pin (321) away from the piston (32) is in contact with the top of the liquid storage barrel (3110); the bottom of the protective shell (31) is fixedly connected to a transmission pipe (312); the 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 in communication with the interception assembly (310); the interception assembly (310) comprises an interception box (3101) fixedly connected to the outer peripheral surface of the outer shell (1); the interception box (3101) has an input end and an output end; the transmission tube (312) is in communication with the input end of the interception box (3101); an interception plate (3102) is fixedly connected to the inner middle portion of the interception box (3101); the output end of the interception box (3101) is fixedly connected to a connecting tube (3103); and one end of the connecting tube (3103) away from the interception box (3101) passes through the outer shell (1) and the inner shell (11) to be in communication with the filling area.

6. The high airtight fireproof damper according to claim 1, characterized in that: The top of the protective shell (31) is fixedly connected to a gas collecting pipe (33), the gas collecting pipe (33) having a plurality of input ends and an output end, and the output end of the gas collecting pipe (33) is connected to the inside of the protective shell (31) through a pipeline, the upper end surface of the steam box (34) is fixedly connected to a pressure limiting valve (35), the center position of the upper end surface of the steam box (34) is fixedly connected to a polymer permeable block (36), the gas separation component (37) corresponds to the position of the polymer permeable block (36), and the gas separation component (37) includes a fixed connection The gas distribution pipe (371) is provided on the upper end surface of the polymer gas permeable block (36). The gas distribution pipe (371) has a plurality of output ends and an input end, and the input end of the gas distribution pipe (371) is connected to the polymer gas permeable block (36) through a pipeline. The number of the output ends of the gas distribution pipe (371) corresponds to the number of the input ends of the gas gathering pipe (33). Each output end of the gas distribution pipe (371) is fixedly connected to a conduit (372), and one 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).

7. The high airtight fireproof damper according to claim 1, characterized in that: The heating assembly (39) comprises a heating block (391) fixedly connected to the middle part of the steam box (34); the edges around the heating block (391) are fixedly connected to a plurality of convex balls (392) in a rectangular array; the central positions around the heating block (391) are fixedly connected to heat-conducting rods (393); and one end of each heat-conducting rod (393) away from the heating block (391) passes through the steam box (34) and contacts the heat collecting cover (38) at the corresponding position.

8. The high airtight fireproof damper according to claim 1, characterized in that: The invention also comprises an air damper mechanism (4), the air damper mechanism (4) comprising a fixed frame (41) fixedly connected to the top of the outer shell (1), the fixed frame (41) being connected to the inner shell (11), the inner walls of the fixed frame (41) on opposite sides being provided with mounting grooves (42), each of the mounting grooves (42) being provided with a magnetic rod (43), the two sides of the fixed frame (41) corresponding to the mounting grooves (42) being fixedly connected to an electromagnetic driver (46), the magnetic rod (43) being electrically connected to the electromagnetic driver (46), and the electromagnetic driver (46) being electrically connected to a wind turbine (252), the inner middle part of the fixed frame (41) being rotatably connected to an air damper (44), the air damper (44) having a rotating rod and a plurality of air damper blades, and each of the air damper blades being fixedly connected to a magnetic strip (45) at one end away from the rotating rod.

9. A safety control method for a high-airtight fireproof damper, applied to the high-airtight fireproof damper according to any one of claims 1 to 8, characterized in that: The control method uses the heat generated when a fire occurs to cut off the fire damper, and uses liquid to achieve heat insulation and flame retardancy after the fire damper is cut off. The method specifically includes the following steps: Cutting off the fire damper: when a fire occurs, the airflow with heat enters the inner shell (11) and contacts the ventilation assembly (21), and the ventilation assembly (21) absorbs the heat generated by the fire, so that the limit assembly (24), the ventilation column assembly (23) and the ventilation assembly (21) are combined, thereby cutting off the inner shell (11) to prevent the airflow from flowing in the inner shell (11), thereby 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), and the heating component (39) uses the transferred heat to heat the water stored in its steam box (34), thereby heating the water into water vapor. The water vapor further enters the gas separation component (37), and the gas separation component (37) collects the water vapor and transfers it to the protective shell (31), so that the piston (32) is pushed to squeeze the liquid storage barrel (3110) with the water vapor as the power, so that the liquid in the liquid storage barrel (3110) enters the filling area.

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