Building fire smoke prevention and exhaust system

Abstract

The utility model discloses a building fire control smoke prevention and exhaust system belongs to building fire control technical field, including the exhaust box, the exhaust box outside lower extreme is fixed with the mounting panel, is provided with a plurality of fastening bolt in the mounting panel, and the dust filter core is installed to the exhaust box inside, and the sound and light alarm is provided with in the exhaust box lower extreme one side, the utility model discloses a protection subassembly is set up, and the wind power of fan exhaust smoke generates and promotes the baffle rotation, and the baffle rotates in the fixed frame through the pivot, and the pivot rotation drives the sliding of the rotating plate on the arc rod, and the rotating plate sliding compression spring, and the flue gas is discharged through the fixed frame, and the spring pushes the rotating plate reset after the stop operation of fan, and the fixed plate is blocked to the rotating plate, and the rotating plate drives the baffle reset through the pivot and blocks the fixed frame, and the protection subassembly can be sealed to the exhaust channel one end protection, avoids the bird of external etc. when not carrying out the exhaust work of exhaust channel to enter the exhaust channel and builds the nest, and influences the ventilation of exhaust channel when using.

Description

Technical Field

[0001] This utility model belongs to the field of building fire protection technology, specifically relating to a building fire protection smoke control and exhaust system. Background Technology

[0002] Building fire protection facilities refer to the general term for equipment and facilities installed within buildings and structures, such as automatic fire alarm systems, automatic sprinkler systems, and fire hydrant systems, used to prevent and extinguish fires in buildings and structures. Commonly used systems include automatic fire alarm systems, automatic sprinkler systems, fire hydrant systems, gas extinguishing systems, foam extinguishing systems, dry powder extinguishing systems, smoke control and exhaust systems, and safe evacuation systems. They are crucial facilities for ensuring the fire safety of buildings and the safety of personnel evacuation, and are an important component of modern buildings.

[0003] Existing building fire protection smoke control and exhaust systems lack protective functions at one end of the smoke exhaust duct, allowing birds and other animals to easily enter and nest in the duct, affecting its ventilation during use. Furthermore, existing building fire protection smoke control and exhaust systems do not have cooling functions for the fans, which can easily damage the fans in the event of a fire, thus affecting the smoke exhaust effect. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides a building fire protection smoke control and exhaust system with protective functions, making it difficult for birds and other birds to enter the smoke exhaust duct to nest and affect the use of the smoke exhaust duct.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a building fire protection smoke control and exhaust system, including a smoke exhaust box, an installation plate fixed to the lower outer side of the smoke exhaust box, a plurality of fastening bolts provided in the installation plate, a dust filter installed inside the smoke exhaust box, an audible and visual alarm provided on one side of the lower end of the smoke exhaust box, a smoke sensor provided on one side of the audible and visual alarm, a controller provided on one side of the upper end of the smoke exhaust box, a fan installed at the upper end of the smoke exhaust box, an exhaust duct fixed at the upper end of the smoke exhaust box corresponding to the fan, a cooling component provided inside the smoke exhaust box, and a protective component provided at one end of the exhaust duct.

[0006] Preferably, the protective assembly includes a connecting hopper, a fixed frame, a baffle, a fixed box, a rotating shaft, a rotating plate, a fixed plate, an arc-shaped rod, an auxiliary component, and a spring. The connecting hopper is fixed at one end of the smoke exhaust channel, and a fixed frame is fixed at the other end. Two baffles are rotatably connected inside the fixed frame, and the baffles are connected to the fixed frame via a rotating shaft. Fixed boxes are fixed at both ends of the fixed frame at positions corresponding to the rotating shaft. A rotating plate is fixed on the rotating shaft inside the fixed box, and a fixed plate is fixed at a position corresponding to the rotating plate inside the fixed box. An arc-shaped rod is fixed between the fixed plate and the fixed box. A spring is sleeved on the outer side of the arc-shaped rod at one end of the rotating plate. The arc-shaped rod is centered on the rotating shaft, and a sliding hole corresponding to the arc-shaped rod is opened in the rotating plate. An auxiliary component is provided at one end of the fixed box.

[0007] Preferably, the auxiliary components include a maintenance plate, a groove, a rubber pad, fixing bolts, and fixing holes. The maintenance plate is provided at one end of the fixing box, and a rubber pad is glued to the end of the maintenance plate near the fixing box. The maintenance plate and the fixing box are connected by fixing bolts, and a fixing hole corresponding to the fixing bolt is opened at one end of the fixing box.

[0008] Preferably, the auxiliary component further includes a support plate and a rain shield, wherein the support plate is fixed on both sides of the upper end of the fixed frame, and the rain shield is fixed on the upper end of the support plate.

[0009] Preferably, the cooling assembly includes a storage tank, a fixed pipe, nozzles, a delivery pipe, a solenoid valve, and a pressure gauge. The fixed pipe is fixed to one side of the inside of the smoke exhaust box, and several nozzles are installed at one end of the fixed pipe. The storage tank is fixed to the rear side of the upper end of the smoke exhaust box, and a pressure gauge is installed on the upper side of one end of the storage tank. The storage tank and the fixed pipe are connected by a delivery pipe, and a solenoid valve is installed on the delivery pipe.

[0010] Preferably, the cooling assembly further includes an air injection pipe and a one-way valve, wherein an air injection pipe is provided on the lower side of one end of the storage tank, and a one-way valve is installed on the nozzle.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, by setting up a protective component, uses the air force generated by the exhaust fan to drive the baffle to rotate. The baffle rotates in a fixed frame via a rotating shaft. The rotating shaft drives the rotating plate to slide on an arc-shaped rod. The sliding rotating plate compresses the spring, and the flue gas is discharged through the fixed frame. After the fan stops running, the spring pushes the rotating plate to reset. The fixed plate blocks and limits the rotating plate. The rotating plate drives the baffle to reset via the rotating shaft, sealing the fixed frame. By setting up the protective component, one end of the exhaust channel can be sealed and protected, preventing external birds and other creatures from entering the exhaust channel to nest when the exhaust channel is not in operation, thus affecting the ventilation of the exhaust channel during use.

[0013] 2. This utility model, by setting auxiliary components, stores high-pressure cold air in a storage tank. The internal pressure of the storage tank can be monitored by a pressure gauge. When the fan is running to exhaust smoke, the controller controls the solenoid valve to open. The high-pressure cold air in the storage tank enters the fixed pipe through the delivery pipe. The nozzle at one end of the fixed pipe sprays out cold air, thereby cooling the high-temperature flue gas and preventing damage to the fan caused by the high temperature of the flue gas. By setting cooling components, the flue gas can be cooled, thereby protecting the fan and preventing damage to the fan caused by high-temperature flue gas, thus affecting the smoke exhaust effect. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a bottom-view perspective view of the present invention;

[0016] Figure 3 This is a sectional perspective view of the present invention;

[0017] Figure 4 This is a perspective view of the mounting plate of this utility model during installation;

[0018] Figure 5 This utility model Figure 4 Enlarged view of point A;

[0019] In the diagram: 1. Smoke exhaust box; 2. Protective components; 21. Connecting hopper; 22. Fixing frame; 23. Baffle; 24. Fixing box; 25. Rotating shaft; 26. Rotating plate; 27. Fixing plate; 28. Arc rod; 29. ​​Auxiliary components; 291. Inspection plate; 292. Groove; 293. Rubber pad; 294. Fixing bolt; 295. Fixing hole; 296. Support plate; 297. Rain shield; 210. Spring; 3. Cooling components; 31. Storage tank; 32. Fixing pipe; 33. Nozzle; 34. Delivery pipe; 35. Solenoid valve; 36. Air injection pipe; 37. Pressure gauge; 38. Check valve; 4. Mounting plate; 5. Fastening bolt; 6. Controller; 7. Smoke exhaust duct; 8. Fan; 9. Dust filter; 10. Audible and visual alarm; 11. Smoke sensor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1:

[0022] Please see Figure 1-5 This utility model provides the following technical solution: a building fire protection smoke prevention and exhaust system, including a smoke exhaust box 1, an installation plate 4 fixed to the lower outer side of the smoke exhaust box 1, a plurality of fastening bolts 5 in the installation plate 4, a dust filter element 9 installed inside the smoke exhaust box 1, an audible and visual alarm 10 installed on one side of the lower end of the smoke exhaust box 1, a smoke sensor 11 installed on one side of the audible and visual alarm 10, a controller 6 installed on one side of the upper end of the smoke exhaust box 1, a fan 8 installed on the upper end of the smoke exhaust box 1, a smoke exhaust channel 7 fixed at the position corresponding to the fan 8 on the upper end of the smoke exhaust box 1, a cooling component 3 installed inside the smoke exhaust box 1, and a protective component 2 installed at one end of the smoke exhaust channel 7.

[0023] Specifically, the protective component 2 includes a connecting hopper 21, a fixed frame 22, a baffle 23, a fixed box 24, a rotating shaft 25, a rotating plate 26, a fixed plate 27, an arc-shaped rod 28, an auxiliary component 29, and a spring 210. One end of the smoke exhaust channel 7 is fixed to the connecting hopper 21, and the other end of the connecting hopper 21 is fixed to the fixed frame 22. Two baffles 23 are rotatably connected inside the fixed frame 22. The baffles 23 are connected to the fixed frame 22 via the rotating shaft 25. Both ends of the fixed frame 22 are connected to the rotating shaft 25. A fixed box 24 is fixed at the corresponding position. A rotating plate 26 is fixed on the rotating shaft 25 inside the fixed box 24. A fixed plate 27 is fixed at the position corresponding to the rotating plate 26 inside the fixed box 24. An arc-shaped rod 28 is fixed between the fixed plate 27 and the fixed box 24. A spring 210 is sleeved on the outer side of the arc-shaped rod 28 at one end of the rotating plate 26. The arc-shaped rod 28 is set with the rotating shaft 25 as the axis. A sliding hole corresponding to the arc-shaped rod 28 is opened in the rotating plate 26. An auxiliary component 29 is provided at one end of the fixed box 24.

[0024] By adopting the above technical solution, when a fire occurs and the fan 8 operates to exhaust smoke through the smoke exhaust duct 7, the smoke enters the fixed frame 22 through the connecting hopper 21. The wind force generated by the fan 8 pushes the baffle 23 to rotate. The baffle 23 rotates in the fixed frame 22 through the rotating shaft 25. The rotation of the rotating shaft 25 drives the rotating plate 26 to slide on the arc rod 28. The rotating plate 26 slides and compresses the spring 210, and the smoke is discharged through the fixed frame 22. After the fan 8 stops operating, the spring 210 pushes the rotating plate 26 to reset. The fixed plate 27 blocks and limits the rotating plate 26. The rotating plate 26 drives the baffle 23 to reset through the rotating shaft 25 and seal the fixed frame 22. By setting the protective component 2, one end of the smoke exhaust duct 7 can be sealed and protected to prevent external birds and other creatures from entering the smoke exhaust duct 7 to build nests when the smoke exhaust duct 7 is not performing smoke exhaust work, thus affecting the ventilation of the smoke exhaust duct 7 during use.

[0025] Specifically, the auxiliary component 29 includes a maintenance plate 291, a groove 292, a rubber pad 293, a fixing bolt 294, and a fixing hole 295. The maintenance plate 291 is provided at one end of the fixing box 24. The rubber pad 293 is glued to the end of the maintenance plate 291 near the fixing box 24. The maintenance plate 291 and the fixing box 24 are connected by the fixing bolt 294. The fixing box 24 has a fixing hole 295 at one end that corresponds to the fixing bolt 294.

[0026] By adopting the above technical solution, the fixing bolt 294 can be unscrewed from the fixing hole 295, and the inspection plate 291 can be disassembled from one end of the fixing box 24, which facilitates the inspection and maintenance of the components in the fixing box 24. At the same time, a rubber gasket 293 is set at one end of the inspection plate 291 so that the sealing between the inspection plate 291 and the fixing box 24 is better after the inspection plate 291 is installed at one end of the fixing box 24.

[0027] Specifically, the auxiliary component 29 also includes a support plate 296 and a rain shield 297. The support plate 296 is fixed on both sides of the upper end of the fixed frame 22, and the rain shield 297 is fixed on the upper end of the support plate 296.

[0028] By adopting the above technical solution, the rainproof plate 297 on the upper end of the support plate 296 on both sides of the upper end of the fixed frame 22 plays a role in blocking rain and preventing rainwater from falling into the fixed frame 22.

[0029] In this embodiment, when the building fire protection smoke control and exhaust system is in use, the device is installed in a suitable position. The smoke exhaust box 1 is installed in the suitable position using the mounting plate 4 and fastening bolts 5. When the smoke sensor 11 detects a fire, the controller 6 controls the fan 8 to start running. Smoke enters the smoke exhaust box 1, is filtered by the dust filter element 9, and is then discharged to the outside through the smoke exhaust channel 7, thus performing smoke exhaust work. At the same time, the audible and visual alarm 10 performs audible and visual alarm work. When a fire occurs, the fan 8 runs and exhausts smoke through the smoke exhaust channel 7. The smoke enters the fixed frame 22 through the connecting hopper 21. The wind force generated by the fan 8 pushes the baffle 23 to rotate. The baffle 23 rotates in the fixed frame 22 via the rotating shaft 25. The rotation of the rotating shaft 25 drives the rotating plate 26 to slide on the arc rod 28. The sliding plate 26 compresses the spring 210, and the smoke is discharged through the fixed frame 22. After the fan 8 stops running, the spring 210 pushes... The rotating plate 26 is reset, and the fixed plate 27 blocks and limits the rotating plate 26. The rotating plate 26 drives the baffle 23 to reset and block the fixed frame 22 through the rotating shaft 25. By setting the protective component 2, one end of the smoke exhaust channel 7 can be sealed and protected to prevent external birds and other creatures from entering the smoke exhaust channel 7 to nest when the smoke exhaust channel 7 is not in operation, thus affecting the ventilation of the smoke exhaust channel 7 during use. By setting the auxiliary component 29, the fixing bolt 294 can be unscrewed from the fixing hole 295, and the inspection plate 291 can be removed from one end of the fixed box 24, which facilitates the inspection and maintenance of the components in the fixed box 24. At the same time, a rubber pad 293 is set at one end of the inspection plate 291 to make the seal between the inspection plate 291 and the fixed box 24 better after the inspection plate 291 is installed at one end of the fixed box 24. The rainproof plate 297 on the upper end of the support plates 296 on both sides of the upper end of the fixed frame 22 plays a role in rain protection and prevents rainwater from falling into the fixed frame 22.

[0030] Example 2:

[0031] The difference between this embodiment and embodiment 1 is that the cooling assembly 3 includes a storage tank 31, a fixed pipe 32, a nozzle 33, a delivery pipe 34, a solenoid valve 35, and a pressure gauge 37. The fixed pipe 32 is fixed to one side inside the smoke exhaust box 1, and a number of nozzles 33 are installed at one end of the fixed pipe 32. The storage tank 31 is fixed to the rear side of the upper end of the smoke exhaust box 1, and a pressure gauge 37 is installed on the upper side of one end of the storage tank 31. The storage tank 31 and the fixed pipe 32 are connected by the delivery pipe 34, and a solenoid valve 35 is installed on the delivery pipe 34.

[0032] By adopting the above technical solution, high-pressure cold air is stored in the storage tank 31. The internal pressure of the storage tank 31 can be monitored by the pressure gauge 37. When the fan 8 is running to exhaust smoke, the controller 6 controls the solenoid valve 35 to open. The high-pressure cold air in the storage tank 31 enters the fixed pipe 32 through the delivery pipe 34. The nozzle 33 at one end of the fixed pipe 32 sprays out cold air, thereby cooling the high-temperature flue gas and preventing the fan 8 from being damaged due to the high temperature of the flue gas. By setting the cooling component 3, the flue gas can be cooled, thereby protecting the fan 8 and preventing the fan 8 from being damaged by the high-temperature flue gas, thus affecting the smoke exhaust effect.

[0033] Specifically, the cooling assembly 3 also includes an air injection pipe 36 and a one-way valve 38. The air injection pipe 36 is provided on the lower side of one end of the storage tank 31, and the one-way valve 38 is installed on the nozzle 33.

[0034] By adopting the above technical solution, a gas injection pipe 36 is provided at one end of the storage tank 31 to replenish the storage tank 31 with high-temperature cold air, while a one-way valve 38 is provided at one end of the nozzle 33 to prevent smoke and dust from entering the fixed pipe 32 through the nozzle 33.

[0035] In this embodiment, the storage tank 31 stores high-pressure cold air. The internal pressure of the storage tank 31 can be monitored by the pressure gauge 37. When the fan 8 is running to exhaust smoke, the controller 6 controls the solenoid valve 35 to open. The high-pressure cold air in the storage tank 31 enters the fixed pipe 32 through the delivery pipe 34. The nozzle 33 at one end of the fixed pipe 32 sprays cold air to cool down the high-temperature flue gas and prevent the high temperature of the flue gas from damaging the fan 8. The cooling component 3 can be set to cool down the flue gas, thereby protecting the fan 8 and preventing the high-temperature flue gas from damaging the fan 8 and affecting the smoke exhaust effect. The air injection pipe 36 is set at one end of the storage tank 31 to replenish the storage tank 31 with high-temperature cold air. At the same time, the one-way valve 38 is set at one end of the nozzle 33 to prevent smoke and dust from entering the fixed pipe 32 through the nozzle 33.

[0036] The structure and working principle of the smoke exhaust box 1, mounting plate 4, fastening bolts 5, controller 6, smoke exhaust channel 7, fan 8, dust filter element 9, audible and visual alarm 10 and smoke sensor 11 in this utility model have been disclosed in an intelligent fire-fighting smoke exhaust device disclosed in Chinese patent application number 2022212795531.

[0037] The working principle and usage process of this utility model: When using the building fire protection smoke control and exhaust system, the device is installed in a suitable position. The smoke exhaust box 1 is installed in the suitable position using the mounting plate 4 and fastening bolts 5. When the smoke sensor 11 detects a fire, the controller 6 controls the fan 8 to start running. Smoke enters the smoke exhaust box 1, is filtered by the dust filter element 9, and is then discharged to the outside through the smoke exhaust channel 7, thus performing smoke exhaust work. At the same time, the audible and visual alarm 10 performs audible and visual alarm work. When a fire occurs, the fan 8 operates and exhausts smoke through the smoke exhaust channel 7. The smoke enters the fixed frame 22 through the connecting hopper 21. The wind force generated by the fan 8 pushes the baffle. 23 rotates, and baffle 23 rotates within fixed frame 22 via shaft 25. The rotation of shaft 25 causes rotating plate 26 to slide on arc rod 28. Rotating plate 26 compresses spring 210, and flue gas is discharged through fixed frame 22. After fan 8 stops running, spring 210 pushes rotating plate 26 to reset. Fixed plate 27 blocks and limits rotating plate 26. Rotating plate 26 drives baffle 23 to reset via shaft 25, sealing fixed frame 22. By setting protective component 2, one end of smoke exhaust channel 7 can be sealed and protected, preventing external birds and other creatures from entering smoke exhaust channel 7 to nest when smoke exhaust channel 7 is not in operation, thus affecting the ventilation of smoke exhaust channel 7 during use. By setting the auxiliary component 29, the fixing bolt 294 can be unscrewed from the fixing hole 295, allowing the inspection plate 291 to be disassembled from one end of the fixing box 24. This facilitates the inspection and maintenance of the components in the fixing box 24. Simultaneously, a rubber gasket 293 is placed at one end of the inspection plate 291 to improve the seal between the inspection plate 291 and the fixing box 24 after installation. The rain shield 297 on the upper ends of the support plates 296 on both sides of the upper end of the fixing frame 22 serves to prevent rainwater from falling into the fixing frame 22. The storage tank 31 stores high-pressure cold air, and the internal pressure of the storage tank 31 can be monitored by the pressure gauge 37. The fan 8 is running. When performing smoke extraction, the controller 6 controls the solenoid valve 35 to open. The high-pressure cold air in the storage tank 31 enters the fixed pipe 32 through the delivery pipe 34. The nozzle 33 at one end of the fixed pipe 32 sprays cold air to cool down the high-temperature flue gas and prevent the fan 8 from being damaged due to the high temperature of the flue gas. The cooling component 3 can be set to cool down the flue gas, thereby protecting the fan 8 and preventing the high-temperature flue gas from damaging the fan 8 and affecting the smoke extraction effect. The air injection pipe 36 is set at one end of the storage tank 31 to replenish the storage tank 31 with high-temperature cold air. At the same time, a one-way valve 38 is set at one end of the nozzle 33 to prevent smoke and dust from entering the fixed pipe 32 through the nozzle 33.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A building fire protection smoke control and exhaust system, comprising a smoke exhaust box (1), wherein an installation plate (4) is fixed to the lower outer side of the smoke exhaust box (1), and a plurality of fastening bolts (5) are provided in the installation plate (4); a dust filter element (9) is installed inside the smoke exhaust box (1); an audible and visual alarm (10) is provided on one side of the lower end of the smoke exhaust box (1); a smoke sensor (11) is provided on one side of the audible and visual alarm (10); a controller (6) is provided on one side of the upper end of the smoke exhaust box (1); a fan (8) is installed on the upper end of the smoke exhaust box (1); and a smoke exhaust channel (7) is fixed at the position corresponding to the fan (8) on the upper end of the smoke exhaust box (1), characterized in that: The smoke exhaust box (1) is equipped with a cooling component (3), and a protective component (2) is installed at one end of the smoke exhaust channel (7).

2. The building fire protection smoke control and exhaust system according to claim 1, characterized in that: The protective assembly (2) includes a connecting hopper (21), a fixed frame (22), a baffle (23), a fixed box (24), a rotating shaft (25), a rotating plate (26), a fixed plate (27), an arc rod (28), an auxiliary assembly (29), and a spring (210). One end of the smoke exhaust channel (7) is fixed to the connecting hopper (21), and the other end of the connecting hopper (21) is fixed to the fixed frame (22). Two baffles (23) are rotatably connected inside the fixed frame (22). The baffles (23) are connected to the fixed frame (22) via a rotating shaft (25). Both ends of the fixed frame (22) are connected to the rotating shaft (26). 5) A fixed box (24) is fixed at the corresponding position. A rotating plate (26) is fixed on the rotating shaft (25) inside the fixed box (24). A fixed plate (27) is fixed at the position corresponding to the rotating plate (26) inside the fixed box (24). An arc rod (28) is fixed between the fixed plate (27) and the fixed box (24). A spring (210) is sleeved on the outer side of the arc rod (28) at one end of the rotating plate (26). The arc rod (28) is set with the rotating shaft (25) as the axis. A sliding hole corresponding to the arc rod (28) is opened in the rotating plate (26). An auxiliary component (29) is set at one end of the fixed box (24).

3. A building fire protection smoke control and exhaust system according to claim 2, characterized in that: The auxiliary component (29) includes a maintenance plate (291), a groove (292), a rubber pad (293), a fixing bolt (294), and a fixing hole (295). The maintenance plate (291) is provided at one end of the fixing box (24). The rubber pad (293) is glued to the end of the maintenance plate (291) near the fixing box (24). The maintenance plate (291) and the fixing box (24) are connected by the fixing bolt (294). The fixing box (24) has a fixing hole (295) at one end that corresponds to the fixing bolt (294).

4. A building fire protection smoke control and exhaust system according to claim 3, characterized in that: The auxiliary component (29) also includes a support plate (296) and a rain shield (297), wherein the support plate (296) is fixed on both sides of the upper end of the fixed frame (22), and the rain shield (297) is fixed on the upper end of the support plate (296).

5. A building fire protection smoke control and exhaust system according to claim 1, characterized in that: The cooling assembly (3) includes a storage tank (31), a fixed pipe (32), a nozzle (33), a delivery pipe (34), a solenoid valve (35), and a pressure gauge (37). The fixed pipe (32) is fixed on one side inside the smoke exhaust box (1), and a number of nozzles (33) are installed at one end of the fixed pipe (32). The storage tank (31) is fixed on the rear side of the upper end of the smoke exhaust box (1), and a pressure gauge (37) is installed on the upper side of one end of the storage tank (31). The storage tank (31) and the fixed pipe (32) are connected by a delivery pipe (34), and a solenoid valve (35) is installed on the delivery pipe (34).

6. A building fire protection smoke control and exhaust system according to claim 5, characterized in that: The cooling assembly (3) also includes an air injection pipe (36) and a one-way valve (38), wherein an air injection pipe (36) is provided on the lower side of one end of the storage tank (31), and a one-way valve (38) is installed on the nozzle (33).

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