High sealing fume exhaust fire damper

Abstract

The application relates to the field of smoke exhaust valves, in particular to a high-sealing smoke exhaust fire valve, which comprises a fire valve body, a smoke exhaust switcher for accelerating smoke exhaust is horizontally arranged in the fire valve body and driven, a valve body cooler for fire prevention and cooling is fixed on the smoke exhaust switcher, and an explosion-proof stopper for explosion prevention and buffering is slidably arranged in the fire valve body; the fire valve body comprises a valve body fixing frame, a discharge arc-shaped frame and a side fixing frame, the discharge arc-shaped frame for explosion protection is fixed to the outer portion of the valve body fixing frame, and the side fixing frame for switching operation is fixed to the side end of the valve body fixing frame; the application has the beneficial effects that the installation positions of pipelines and the like can be effectively closed and cooled, and the effects of good explosion protection and equipment protection are achieved.

Description

Technical Field

[0001] This invention relates to the field of smoke exhaust valves, and more specifically to a high-sealing smoke exhaust fireproof valve. Background Technology

[0002] The purpose of commonly used smoke exhaust fire dampers is to quickly exhaust air in low-temperature fires and to enclose flames in high-temperature fires, thereby effectively improving the performance and ensuring safe use in special circumstances. A high-sealing smoke exhaust fire damper similar to one in patent number CN202310239557.X includes: a smoke exhaust valve frame, a valve body, a valve drive assembly, and a thermal expansion closing assembly. The top surface of the smoke exhaust valve frame has a drive guide, the valve drive assembly is slidably installed inside the drive guide, the valve body is rotatably installed inside the smoke exhaust valve frame, and the valve body has a connector end and an abutment groove on each side. The connector ends and abutment grooves on adjacent valve body sides fit together. The surface of the valve body has a heat-insulating coating, and a limit rod is rotatably installed inside the smoke exhaust valve frame. In this invention, a novel automatic smoke exhaust valve structure is designed. When excessive indoor smoke generates high pressure, the valve body is automatically pushed to deflect. The moving sleeve and the limiting linkage move closer to each other to deflect the valve body and compress the spring sleeve, thus quickly exhausting smoke. The structure is simple and the mechanical structure has high stability. However, this patented solution cannot effectively seal and cool down the valve or provide good explosion-proof protection.

[0003] Therefore, the existing technical solutions have shortcomings and cannot effectively seal and cool the installation locations such as pipelines, nor can they provide good explosion-proof protection. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the limitations of the prior art in effectively sealing and cooling the installation location of pipelines and other equipment, as well as providing good explosion protection and equipment protection.

[0005] Therefore, the technical solution adopted is a high-sealing smoke exhaust fire damper of the present invention, including a fire damper body, a smoke exhaust switch for accelerating smoke exhaust is horizontally driven in the fire damper body, a valve body cooler for fire prevention and cooling is fixed on the smoke exhaust switch, and an explosion-proof stopper for explosion-proof buffer is slidably arranged in the fire damper body.

[0006] Preferably, the fireproof valve body includes a valve body fixing frame, a discharge arc frame, and a side fixing frame. The discharge arc frame for explosion protection is fixed to the outside of the valve body fixing frame, and a side fixing frame for switching operation is fixed to the side end of the valve body fixing frame.

[0007] Preferably, multiple inner sealing baffles are symmetrically fixed side by side at both ends of the inner wall of the fire valve body; a sealing ring is provided inside the inner sealing baffle.

[0008] Preferably, the smoke exhaust switch includes a threaded driver, a sliding motor base, a rotating base, and a sliding switching frame. The threaded driver slides laterally within the sliding motor base, the sliding motor base is fixed to a side fixing frame on the side end of the fire damper body, the drive shaft of the sliding motor base is threadedly connected to the side fixing frame on the side end of the fire damper body, the drive shaft of the sliding motor base rotates within the rotating base, and the rotating base is fixed to the side end of the sliding switching frame.

[0009] Preferably, the sliding switching frame is laterally limited and slides within the fire damper body. Multiple exhaust duct frames are fixed and connected side by side on the sliding switching frame. The lower end of the exhaust duct frame is fixed and connected to the air inlet rotating frame. A threaded compression thruster is rotatably installed inside the air inlet rotating frame. The threaded compression thruster is connected to the drive shaft of the air inlet driver through a coupling. The air inlet driver is fixed on the lateral limiting slide plate, which laterally limits and slides within the fire damper body.

[0010] Preferably, the exhaust vent frame is provided with a conical exhaust trough, which is connected to the discharge arc frame inside the fire damper body.

[0011] Preferably, the drive shaft of the air intake driver is fixed with belt gears, and multiple belt gears are connected to the threaded compression propeller via belt drive to rotate within the lateral limiting slide plate.

[0012] Preferably, the valve body cooler includes a valve connecting pipe, a connecting pipe and multiple cooling nozzles. The valve connecting pipe slides on the fireproof valve body through a limiting slider. The valve connecting pipe is connected to multiple cooling nozzles through the connecting pipe. The multiple cooling nozzles are fixed side by side on the sliding switching frame of the smoke exhaust switcher. The multiple cooling nozzles are staggered with the exhaust vent frame inside the smoke exhaust switcher.

[0013] Preferably, the explosion-proof stopper includes an explosion-proof driver, an arc-shaped explosion-proof frame, a limiting arc-shaped slider, and an explosion-proof rubber sleeve. The explosion-proof driver is fixed to the side of the fire valve body. The explosion-proof driver drives the arc-shaped explosion-proof frame through gear and rack meshing. The arc-shaped explosion-proof frame is limited to slide in the fire valve body by the limiting arc-shaped slider. An explosion-proof rubber sleeve is fixed to the upper end of the arc-shaped explosion-proof frame.

[0014] Preferably, the inner wall of the arc-shaped explosion-proof frame is fixed with a spring top plate, and multiple spring buffer shafts are inserted and fixed on the spring top plate. The spring buffer shafts are provided with arc-shaped top plates, and the springs on the spring buffer shafts are arranged between the arc-shaped top plates and the spring top plates.

[0015] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings.

[0016] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention in a first orientation.

[0019] Figure 2 This is a schematic diagram of the overall second-direction structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the fireproof valve body of the present invention in the first direction;

[0021] Figure 4 This is a schematic diagram of the second-direction structure of the fireproof valve body of the present invention;

[0022] Figure 5 This is a partial structural schematic diagram of the present invention;

[0023] Figure 6 This is a schematic diagram of the first direction structure of the smoke exhaust switch of the present invention;

[0024] Figure 7 This is a schematic diagram of the second direction structure of the smoke exhaust switch of the present invention;

[0025] Figure 8 This is a schematic diagram of the third-direction structure of the smoke exhaust switch of the present invention;

[0026] Figure 9 This is a schematic diagram of the exhaust drive structure of the present invention;

[0027] Figure 10 This is a schematic diagram of the valve body cooler of the present invention;

[0028] Figure 11 This is a schematic diagram of the explosion-proof barrier of the present invention in the first direction;

[0029] Figure 12 This is a schematic diagram of the second direction structure of the explosion-proof barrier of the present invention.

[0030] In the diagram: 1. Fire damper body; 2. Smoke exhaust switch; 3. Valve body cooler; 4. Explosion-proof blocker; 5. Valve body fixing frame; 6. Exhaust arc frame; 7. Side fixing frame; 8. Inner sealing block plate; 9. Threaded actuator; 10. Sliding motor seat; 11. Rotating seat; 12. Sliding switching frame; 13. Exhaust duct frame; 14. Inlet rotating frame; 15. Belt gear; 16. Inlet actuator; 17. Lateral limiting slide plate; 18. Threaded compression pusher; 19. Exhaust duct; 20. Valve connecting pipe; 21. Connecting pipe; 22. Cooling nozzle; 23. Explosion-proof actuator; 24. Arc-shaped explosion-proof frame; 25. Limiting arc slider; 26. Spring top plate; 27. Spring buffer shaft; 28. Explosion-proof rubber sleeve. Detailed Implementation

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] In the description of this application, it should be understood that the terms "middle," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Specific implementation method one:

[0036] like Figure 1 and Figure 2 As shown, a high-sealing smoke exhaust fire damper includes a fire damper body 1, a smoke exhaust switch 2 for accelerating smoke exhaust is horizontally driven inside the fire damper body 1, a valve body cooler 3 for fire prevention and cooling is fixed on the smoke exhaust switch 2, and an explosion-proof stopper 4 for explosion-proof buffer is slidably installed inside the fire damper body 1.

[0037] The working principle and beneficial effects of this embodiment are as follows: The fire damper body 1 is fixed at the position of the pipe or exhaust vent for normal ventilation. In the event of a fire, high-temperature smoke is discharged through the fire damper body 1. The smoke exhaust switch 2 is driven by the control to generate negative pressure through rapid air blowing, which in turn causes the smoke to be discharged quickly through the fire damper body 1. When the temperature of the smoke exceeds 280°C, the temperature sensor in the fire damper body 1 sends a signal to the main controller, which can immediately drive the smoke exhaust switch 2 to slide inside the fire damper body 1, closing the exhaust vent and sealing the exhaust pipe to prevent the fire from spreading. This is achieved by isolating oxygen. At the same time, the pipe normally connected to cooling water is evenly sprayed onto the fire damper body 1 through the valve body cooler 3 to cool and extinguish the fire, preventing it from spreading and protecting the equipment from high-temperature damage. The explosion-proof barrier 4 is driven to isolate and block the fire, preventing pipe explosions due to high temperatures and other situations that could cause additional damage from ejected materials, thus effectively protecting against violent explosions. Specific Implementation Method Two:

[0039] like Figures 3-12 As shown, a high-sealing smoke exhaust fire damper is disclosed. The fire damper body 1 includes a valve body fixing frame 5, an exhaust arc frame 6, and a side fixing frame 7. The exhaust arc frame 6 for explosion protection is fixed to the outside of the valve body fixing frame 5, and the side fixing frame 7 for switching operation is fixed to the side end of the valve body fixing frame 5. Multiple inner sealing baffles 8 are symmetrically fixed side by side at both ends of the inner wall of the fire damper body 1. A sealing ring is provided inside the inner sealing baffle 8.

[0040] The working principle and beneficial effects of this embodiment are as follows: By dividing the fire damper body 1 into a fixed frame 5 and a discharge arc frame 6, it is convenient to install and fix it through the fixed frame 5, and the discharge arc frame 6 facilitates centralized discharge and also provides buffering for explosion-proof operation, effectively preventing damage from violent explosions; the side fixed frame 7 facilitates the switching and sliding operation of the smoke exhaust switch 2; multiple inner sealing baffles 8 are symmetrically fixed side by side at both ends of the inner wall of the fire damper body 1, facilitating the switching between ventilation and blocking. When ventilation is required, the sliding position of the smoke exhaust switch 2 connects the inside and outside, facilitating the passage of dense smoke; when sealing, the sliding position of the smoke exhaust switch 2 is blocked by the inner sealing baffles 8, and the sealing ring of the inner sealing baffles 8 facilitates sealing and blocking.

[0041] The working principle and beneficial effects of this embodiment are as follows: Specific implementation method three:

[0043] like Figures 3-12 As shown, a high-sealing smoke exhaust fire damper includes a smoke exhaust switch 2 comprising a threaded driver 9, a sliding motor seat 10, a rotating seat 11, and a sliding switching frame 12. The threaded driver 9 slides laterally within the sliding motor seat 10, which is fixed to a side fixing frame 7 on the side end of the fire damper body 1. The drive shaft of the sliding motor seat 10 is threadedly connected to the side fixing frame 7 on the side end of the fire damper body 1. The drive shaft of the sliding motor seat 10 rotates within the rotating seat 11, which is fixed to the side end of the sliding switching frame 12.

[0044] The working principle and beneficial effects of this embodiment are as follows: the threaded shaft on the threaded driver 9 rotates in the threaded engagement with the side fixing bracket 7, thereby causing the rotating seat 11 and the sliding switching bracket 12 to slide between multiple inner sealing baffles 8. At the same time, the sliding motor seat 10 is fixed, and the threaded driver 9 slides laterally within the sliding motor seat 10, which facilitates the use of switching drive and prevents interference, thereby realizing the drive to switch the smoke exhaust switch 2. Specific implementation method four:

[0046] like Figures 3-12 As shown, a high-sealing smoke exhaust fire damper is provided. The sliding switching frame 12 is laterally limited and slides within the fire damper body 1. Multiple exhaust frames 13 are fixed and connected side by side on the sliding switching frame 12. The lower end of the exhaust frame 13 is fixed and connected to the air inlet rotating frame 14. A threaded compression thruster 18 is rotatably installed inside the air inlet rotating frame 14. The threaded compression thruster 18 is connected to the drive shaft of the air inlet driver 16 through a coupling. The air inlet driver 16 is fixed on the lateral limiting slide plate 17. The lateral limiting slide plate 17 is laterally limited and slides within the fire damper body 1.

[0047] The working principle and beneficial effects of this embodiment are as follows: The sliding switching frame 12 slides laterally between multiple inner sealing baffles 8 of the fire damper body 1, facilitating ventilation connection and closure switching; multiple exhaust duct frames 13 are fixed side-by-side and connected on the sliding switching frame 12. Driven by the air intake driver 16, the threaded compression propeller 18 rotates within the air intake rotating frame 14. Compressed air is driven to flow within the air intake rotating frame 14 and the exhaust duct frames 13, thereby achieving a blowing effect and creating negative pressure in the external space. This allows dense smoke to quickly pass between the exhaust duct frames 13 and the multiple inner sealing baffles 8, achieving rapid smoke discharge and preventing obstruction or incomplete discharge during the process. The threaded compression propeller 18 is connected to the drive shaft of the air intake driver 16 via a coupling. The air intake driver 16 is fixed on the lateral limiting slide plate 17, which slides laterally within the fire damper body 1, thus avoiding unnecessary interference when driving and switching the sliding switching frame 12. Specific implementation method five:

[0049] like Figures 3-12 As shown, a high-sealing smoke exhaust fire damper has a conical exhaust trough 19 on the exhaust frame 13, and the exhaust trough 19 is connected to the exhaust arc frame 6 inside the fire damper body 1.

[0050] The working principle and beneficial effects of this embodiment are as follows: the conical exhaust trough 19 facilitates the generation of airflow with a large wind speed during the driving air compression flow, thereby increasing the generated negative pressure and accelerating the exhaust flow. Specific implementation method six:

[0052] like Figures 3-12 As shown, a high-sealing smoke exhaust fire damper has a belt gear 15 fixed on the drive shaft of the air intake driver 16. Multiple belt gears 15 are connected to a threaded compression propeller 18 via belt drive and rotate within a transverse limiting slide plate 17.

[0053] The working principle and beneficial effects of this embodiment are as follows: by arranging multiple exhaust duct frames 13 side by side, and then by synchronously driving multiple threaded compression thrusters 18 through an air intake driver 16, exhaust is carried out through the exhaust duct frame 13, thereby expanding the exhaust effect, increasing the exhaust area and saving energy. Specific implementation method seven:

[0055] like Figures 3-12As shown, a high-sealing smoke exhaust fire damper includes a valve body cooler 3 comprising a valve connecting pipe 20, a connecting pipe 21, and multiple cooling nozzles 22. The valve connecting pipe 20 slides on the fire damper body 1 via a limiting slider. The valve connecting pipe 20 is connected to multiple cooling nozzles 22 via the connecting pipe 21. The multiple cooling nozzles 22 are fixed side by side on the sliding switching frame 12 of the smoke exhaust switcher 2. The multiple cooling nozzles 22 are staggered with the exhaust ventilation frame 13 inside the smoke exhaust switcher 2.

[0056] The working principle and beneficial effects of this embodiment are as follows: When the temperature of the dense smoke exceeds 280°C, it means that an open flame has appeared. The smoke exhaust switch 2 is driven to close the fire, preventing oxygen from entering and spreading the fire. At the same time, the condensate is added through the valve connecting pipe 20, and then sprayed through the connecting pipe 21 and multiple cooling nozzles 22 to the smoke exhaust switch 2 at the blocking position, cooling the area near the valve. This effectively isolates oxygen and improves the effect of isolating high temperature. It provides effective cooling for fires in different environments, partially ensuring safe use and delaying the spread of fire. Specific implementation method nine:

[0058] like Figures 3-12 As shown, a high-sealing smoke exhaust fire damper includes an explosion-proof blocker 4 comprising an explosion-proof actuator 23, an arc-shaped explosion-proof frame 24, a limiting arc-shaped slider 25, and an explosion-proof rubber sleeve 28. The explosion-proof actuator 23 is fixed to the side of the fire damper body 1. The explosion-proof actuator 23 drives the arc-shaped explosion-proof frame 24 through gear and rack meshing. The arc-shaped explosion-proof frame 24 is limited to sliding arc-shaped within the fire damper body 1 by the limiting arc-shaped slider 25. An explosion-proof rubber sleeve 28 is fixed to the upper end of the arc-shaped explosion-proof frame 24. A spring top plate 26 is fixed to the inner wall of the arc-shaped explosion-proof frame 24. Multiple spring buffer shafts 27 are inserted and fixed on the spring top plate 26. Arc-shaped top plates are provided on the spring buffer shafts 27, and springs on the spring buffer shafts 27 are arranged between the arc-shaped top plates and the spring top plate 26.

[0059] The working principle and beneficial effects of this embodiment are as follows: When blocking and isolating, the explosion-proof driver 23 drives the arc-shaped explosion-proof frame 24 to block the discharge port on the arc-shaped discharge frame 6, preventing the flame from extending outward. At the same time, the explosion-proof rubber sleeve 28 on the surface provides high-temperature isolation. Meanwhile, the spring top plate 26 and multiple spring buffer shafts 27 are inserted and fixed to effectively buffer and block the debris that will be ejected when an explosion occurs, preventing large-scale explosions and unnecessary losses, thus providing effective explosion protection.

[0060] The above description is not intended to limit the present invention, nor is the present invention limited to the examples given above. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of the present invention are also within the protection scope of the present invention.

Claims

1. A high-sealing smoke exhaust fire damper, characterized in that: include, Fire damper body (1), a smoke exhaust switch (2) for accelerating smoke exhaust is installed in the fire damper body (1) and a valve body cooler (3) for fire prevention and cooling is fixed on the smoke exhaust switch (2). An explosion-proof stopper (4) for explosion-proof buffer is slidably installed in the fire damper body (1). The valve body cooler (3) includes a valve connecting pipe (20), a connecting pipe (21) and multiple cooling nozzles (22). The valve connecting pipe (20) slides on the fireproof valve body (1) through a limiting slider. The valve connecting pipe (20) is connected to multiple cooling nozzles (22) through the connecting pipe (21). The multiple cooling nozzles (22) are fixed side by side on the sliding switching frame (12) of the smoke exhaust switcher (2). The multiple cooling nozzles (22) are staggered with the exhaust ventilation frame (13) in the smoke exhaust switcher (2). The explosion-proof blocker (4) includes an explosion-proof driver (23), an arc-shaped explosion-proof frame (24), a limiting arc-shaped slider (25), and an explosion-proof rubber sleeve (28). The explosion-proof driver (23) is fixed to the side of the fire valve body (1). The explosion-proof driver (23) drives the arc-shaped explosion-proof frame (24) through gear and rack meshing. The arc-shaped explosion-proof frame (24) is limited to sliding in an arc shape inside the fire valve body (1) by the limiting arc-shaped slider (25). The upper end of the arc-shaped explosion-proof frame (24) is fixed with an explosion-proof rubber sleeve (28). The inner wall of the arc-shaped explosion-proof frame (24) is fixed with a spring top plate (26), and multiple spring buffer shafts (27) are inserted and fixed on the spring top plate (26). The spring buffer shafts (27) are provided with arc-shaped top plates, and the springs on the spring buffer shafts (27) are arranged between the arc-shaped top plate and the spring top plate (26).

2. The high-sealing smoke exhaust fire damper according to claim 1, characterized in that: The fireproof valve body (1) includes a valve body fixing frame (5), a discharge arc frame (6) and a side fixing frame (7). The valve body fixing frame (5) is externally fixed with a discharge arc frame (6) for explosion protection, and the valve body fixing frame (5) is side-fixed with a side fixing frame (7) for switching operation.

3. The high-sealing smoke exhaust fire damper according to claim 2, characterized in that: Multiple inner sealing baffles (8) are symmetrically fixed at both ends of the inner wall of the fire valve body (1); a sealing ring is provided inside the inner sealing baffle (8).

4. The high-sealing smoke exhaust fire damper according to claim 3, characterized in that: The smoke exhaust switch (2) includes a threaded driver (9), a sliding motor seat (10), a rotating seat (11), and a sliding switching frame (12). The threaded driver (9) slides laterally inside the sliding motor seat (10). The sliding motor seat (10) is fixed on the side fixing frame (7) at the side end of the fire damper body (1). The drive shaft of the sliding motor seat (10) is connected to the side fixing frame (7) at the side end of the fire damper body (1) by a threaded connection. The drive shaft of the sliding motor seat (10) rotates inside the rotating seat (11). The rotating seat (11) is fixed on the side end of the sliding switching frame (12).

5. A high-sealing smoke exhaust fire damper according to claim 4, characterized in that: The sliding switching frame (12) is laterally limited and slides within the fire damper body (1). Multiple exhaust frames (13) are fixed and connected side by side on the sliding switching frame (12). The lower end of the exhaust frame (13) is fixed and connected to the air intake rotating frame (14). A threaded compression thruster (18) is rotatably installed inside the air intake rotating frame (14). The threaded compression thruster (18) is connected to the drive shaft of the air intake driver (16) through a coupling. The air intake driver (16) is fixed on the lateral limiting slide plate (17). The lateral limiting slide plate (17) is laterally limited and slides within the fire damper body (1).

6. A high-sealing smoke exhaust fire damper according to claim 5, characterized in that: The exhaust duct (13) is provided with a conical exhaust duct (19), which is connected to the exhaust arc frame (6) inside the fire damper body (1).

7. A high-sealing smoke exhaust fire damper according to claim 5, characterized in that: The air intake driver (16) has a belt gear (15) fixed on its drive shaft. Multiple belt gears (15) are connected to a threaded compression thruster (18) via belt drive and rotate within a transverse limiting slide plate (17).

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