Smoke control and exhaust device and method for fire engineering

Abstract

The invention relates to the technical field of smoke prevention and exhaust devices, in particular to a smoke prevention and exhaust device for fire engineering, which comprises a smoke exhaust pipe, the outer wall of the smoke exhaust pipe is fixedly connected with a shunt pipe, the inside of the shunt pipe is fixedly connected with a first dustproof plate, and the inside of the shunt pipe is fixedly connected with a connecting frame. A telescopic rod is rotatably connected to the outer wall of the connecting frame, a lantern ring is fixedly connected to the output end of the telescopic rod, a connecting plate is rotatably connected to the interior of the lantern ring, four adjusting assemblies are arranged in the connecting plate, and the adjusting assemblies are used for assisting in controlling the air inlet and outlet amount. The telescopic rods drive the lantern rings to be adjusted in a telescopic mode, so that the connecting plates are driven to achieve lifting adjustment, the rotating angles of the rotating rods are driven through lifting adjustment of the connecting plates, the rotating angles of the rotating rods drive the rotating angles of the rotating shafts and the louver boards, the opening and closing angles are adjusted in the rotating process of the louver boards, and the air inlet and outlet amount is adjusted.

Description

Technical Field

[0001] The invention relates to the field of smoke prevention and exhaust devices, and in particular to a smoke prevention and exhaust device for fire protection engineering. Background Art

[0002] The smoke control and exhaust devices and methods in fire protection engineering are designed to effectively control and remove smoke from buildings when a fire occurs, so as to ensure the safe evacuation of personnel, reduce the harm of smoke to buildings and equipment, and support firefighting and rescue work. Common smoke control and exhaust devices include smoke exhaust fans, smoke exhaust ducts, smoke exhaust vents, smoke-proof doors and windows, etc., while smoke control and exhaust methods include mechanical smoke exhaust, natural smoke exhaust, zoned smoke exhaust and smoke-proof partitions. Mechanical smoke exhaust removes smoke through fans and pipe systems, natural smoke exhaust uses temperature differences or wind to exhaust smoke, zoned smoke exhaust controls the spread of smoke through zones, and smoke-proof partitions prevent smoke from entering evacuation routes. The design needs to be based on the building type, fire risk and fire safety standards to ensure effective smoke prevention and personnel safety during fires.

[0003] Chinese invention patent CN202210286938.9 discloses a smoke exhaust device for fire protection engineering and a method of using the same. The invention relates to the technical field of smoke exhaust devices, specifically a smoke exhaust device for fire protection engineering, including a bellows, an unpowered fan, an unpowered fan mounting cylinder, an air inlet connector, a multi-way connector, a solenoid valve, a smoke exhaust pipe, a columnar smoke exhaust shell, a smoke inlet hole, a linear motor, a motor, a clamp, a worm wheel fan blade, a connecting column and a clamping slot; the invention is a smoke exhaust device dedicated to residential use, which contains a ventilation component and a drive component. The columnar smoke exhaust shell is installed at the installation place of indoor lamps. In daily life, the ventilation component is driven by external wind power to exhaust smoke and ventilate the room. In the event of a fire, the device can automatically trigger the work to discharge indoor smoke and reduce the situation where indoor smoke cannot be discharged in the event of an accidental fire, reduce the concentration of indoor smoke, and reduce the occurrence of indoor personnel being suffocated by smoke. The device structure is ingenious and suitable for smoke exhaust during household fires.

[0004] However, the above-mentioned smoke exhaust device for fire engineering only performs smoke exhaust work through simple ventilation components and drive components, and cannot adjust the smoke exhaust volume according to the actual amount of smoke, and also cannot adjust the air humidity to effectively reduce smoke generation. Summary of the invention

[0005] In view of this, the present invention provides a smoke exhaust device and method for fire protection engineering. The main technical problem to be solved is: by adjusting the air inlet and outlet of the diversion pipe according to the amount of smoke to assist in the smoke exhaust work, and at the same time humidifying the air inside the smoke exhaust pipe to assist in reducing the generation of smoke.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a smoke exhaust device for fire protection engineering, including a smoke exhaust pipe, the outer wall of the smoke exhaust pipe is fixedly connected with a diversion pipe, the interior of the diversion pipe is fixedly connected with a dustproof plate, the interior of the diversion pipe is fixedly connected with a connecting frame, the outer wall of the connecting frame is rotatably connected with a telescopic rod, the output end of the telescopic rod is fixedly connected with a sleeve, the interior of the sleeve is rotatably connected with a connecting plate, the interior of the connecting plate is provided with an adjustment component, the adjustment component is provided with four groups, and the adjustment component is used to assist in controlling the amount of air in and out.

[0007] By adopting the above technical solution, the telescopic rod drives the sleeve ring to extend and retract and drives the connection plate to rise and fall, while driving the four groups of adjustment components to rotate angles, thereby realizing the adjustment of the air inlet and outlet volume.

[0008] As a further description of the above technical solution: the adjustment component includes a rotating rod, which is rotatably connected to the inside of the connecting plate, the inside of the rotating rod is fixedly connected to a rotating shaft, the outer wall of the rotating shaft is fixedly connected to a louver plate, and the rotating shaft is rotatably connected to the inside of the diversion pipe.

[0009] By adopting the above technical solution, the connecting plate drives the rotating rod to rotate and causes the rotating shaft and the louver to rotate at the same time during the lifting and lowering process, so that the louver can adjust the opening and closing angle, thereby realizing the adjustment of the air inlet and outlet volume.

[0010] As a further description of the above technical solution: the upper end of the smoke exhaust pipe is fixedly connected with a bent pipe, one side of the outer wall of the bent pipe is fixedly connected with a connecting pipe, the outer wall of the connecting pipe is fixedly connected with a support frame 1, and the outer wall of the connecting pipe is fixedly connected with a support frame 2.

[0011] By adopting the above technical solution, the smoke exhaust pipe is connected to the elbow pipe, and the elbow pipe is connected to the connecting pipe, which can assist in realizing indoor and outdoor air circulation.

[0012] As a further description of the above technical solution: a water pump is fixedly connected to the upper surface of the support frame 1, the water pump is fixedly connected to the upper surface of the support frame 2, the input end of the water pump is fixedly connected to a water suction pipe, and the output end of the water pump is fixedly connected to a water delivery pipe.

[0013] By adopting the above technical solution, the humidity of the air can be adjusted through the water pump design.

[0014] As a further description of the above technical solution: the outer wall of the water supply pipe is fixedly connected to a delivery pipe, the outer wall of the smoke exhaust pipe is fixedly connected to a mounting frame, the delivery pipe is fixedly connected to the outer wall of the mounting frame, the inside of the delivery pipe is fixedly connected to a nozzle pipe, and the nozzle pipe is fixedly connected to the inside of the smoke exhaust pipe.

[0015] By adopting the above technical solution, the nozzle pipe is connected to the inside of the smoke exhaust pipe, and the nozzle pipe is used to spray the inside of the smoke exhaust pipe to humidify the air inside the smoke exhaust pipe.

[0016] As a further description of the above technical solution: the outer wall of the second support frame is fixedly connected to a fan tube, the interior of the fan tube is fixedly connected to a dustproof plate 2, the interior of the fan tube is fixedly connected to a motor, the output end of the motor is fixedly connected to a fan blade, and the lower surface of the fan tube is fixedly connected to a support seat.

[0017] By adopting the above technical solution, the motor is used to control the forward and reverse rotation of the fan blades to achieve air inlet and outlet regulation.

[0018] A method for using a smoke exhaust device for fire protection engineering comprises the following steps: The first step is to install the device. Fix the support frame 1, support frame 2 and support base of the device on the roof, fix the fan pipe between the support base and support frame 2, fix the connecting pipe between support frame 1 and support frame 2, fix the elbow pipe on the outer wall of the connecting pipe, fix the smoke exhaust pipe on the lower end of the elbow, and fix the three mounting frames on the outer wall of the smoke exhaust pipe, fix the smoke exhaust pipe and the mounting frames indoors, and at the same time install the delivery pipe on the outer walls of the three mounting frames, fix the two diversion pipes on one side of the outer wall of the smoke exhaust pipe, fix the water pump on the upper surface of support frame 1 and support frame 2, fix the water suction pipe on the input end of the water pump, connect the other end of the water suction pipe to the water tank, fix the water delivery pipe on the output end of the water pump, and install the water delivery pipe inside the delivery pipe, and fix the three nozzle pipes inside the smoke exhaust pipe inside the delivery pipe.

[0019] The second step is the daily smoke exhaust and ventilation of the device. The fan blades are driven by the starting motor to rotate, so that the outdoor air is sucked into the fan tube. The air is filtered and dusted through the dust plate 2 inside the fan tube and then enters the connecting tube. The air enters the elbow and the smoke exhaust pipe through the connecting pipe. After entering the smoke exhaust pipe, the air enters the room through two diversion pipes. When the air enters the diversion pipe, it is first filtered and dusted again through the dust plate 1 inside the diversion pipe. At the same time, the telescopic rod is started to drive the sleeve ring to extend and retract, and the sleeve ring extension and retraction drive the connecting plate to rise and fall adjustment. The lifting and adjustment of the connecting plate drives the four groups of adjustment components to rotate angles. The connecting plate drives the rotating rod to rotate angles and drives the rotating shaft and the louver to rotate and open angles to allow air to enter the room. Then open the indoor windows to discharge the original air in the room and make the gas entering the room flow and circulate, thereby realizing daily smoke exhaust and ventilation.

[0020] The third step is to exhaust smoke during a fire. First, start the telescopic rod to drive the ring to extend and retract, and use the ring to drive the connecting plate to lift and lower. The connecting plate drives the rotating rod to rotate the angle and drives the rotating shaft and the louver to rotate the angle, so that the louver is opened to the maximum angle. At this time, start the motor to drive the fan blades to rotate in the opposite direction, and draw the indoor smoke from the diversion pipe into the smoke exhaust pipe and discharge it through the bend pipe, connecting pipe and fan pipe. At the same time, start the water pump, and use the pumping pipe to pump out the water from the water tank and transport it to the inside of the delivery pipe through the water pipe. Use multiple nozzles to spray the inside of the smoke exhaust pipe to humidify the smoke to prevent the smoke from becoming more concentrated inside the smoke exhaust pipe and affecting the smoke exhaust effect.

[0021] By means of the above technical solution, the smoke exhaust device for fire protection engineering of the present invention has at least the following beneficial effects: 1. Compared with the prior art, this smoke exhaust device for fire protection engineering drives the telescopic adjustment of the sleeve ring through the telescopic rod, thereby driving the connecting plate to achieve lifting adjustment, and the lifting adjustment of the connecting plate drives the rotation angle of the rotating rod, and the rotation angle of the rotating rod drives the rotation angle of the rotating shaft and the louver, so that the opening and closing angle of the louver can be adjusted during the rotation process to achieve the adjustment of the air inlet and outlet volume.

[0022] 2. Compared with the prior art, this smoke exhaust device for fire protection engineering uses a water pump combined with a suction pipe to pump out the water inside the water tank, then transports the water to the inside of the delivery pipe through a water pipe, and then sprays it into the smoke exhaust pipe through multiple nozzle pipes, thereby adjusting the humidity of the air and assisting in achieving the smoke exhaust effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an overall structural diagram of a smoke exhaust device for fire protection engineering proposed by the present invention; Figure 2 This is a ring structure diagram of a smoke exhaust device for fire protection engineering proposed by the present invention; Figure 3 This is a structural diagram of a connecting plate of a smoke exhaust device for fire protection engineering proposed by the present invention; Figure 4 This is a structural diagram of a louver plate of a smoke exhaust device for fire protection engineering proposed by the present invention; Figure 5 This is a nozzle pipe structure diagram of a smoke exhaust device for fire protection engineering proposed by the present invention; Figure 6 This is a fan pipe structure diagram of a smoke exhaust device for fire protection engineering proposed by the present invention.

[0024] Legend: 1. Exhaust pipe; 2. Diverter pipe; 3. Dust plate 1; 4. Connecting frame; 5. Telescopic rod; 6. Ring; 7. Connecting plate; 8. Rotating rod; 9. Rotating shaft; 10. Shutter; 11. Bend pipe; 12. Connecting pipe; 13. Support frame 1; 14. Water pump; 15. Suction pipe; 16. Water pipe; 17. Delivery pipe; 18. Mounting frame; 19. Nozzle pipe; 20. Support frame 2; 21. Fan pipe; 22. Dust plate 2; 23. Motor; 24. Fan blade; 25. Support seat. DETAILED DESCRIPTION

[0025] Reference Figure 1-6 The present invention provides a smoke exhaust device for fire protection engineering, comprising a smoke exhaust pipe 1, the outer wall of the smoke exhaust pipe 1 is fixedly connected with a shunt pipe 2, the inside of the shunt pipe 2 is fixedly connected with a dustproof plate 3, the dustproof plate 3 has a dustproof effect and assists in smoke exhaust, the inside of the shunt pipe 2 is fixedly connected with a connecting frame 4, the outer wall of the connecting frame 4 is rotatably connected with a telescopic rod 5, the output end of the telescopic rod 5 is fixedly connected with a collar 6, the inside of the collar 6 is rotatably connected with a connecting plate 7, an adjusting component is arranged inside the connecting plate 7, the adjusting component is arranged with four groups, the four groups of adjusting components are driven by the connecting plate 7 to adjust the opening and closing angles of the louver plates 10, thereby realizing the adjustment of the air inlet and outlet amount, assisting in smoke exhaust, the adjusting component is used to assist in controlling the air inlet and outlet amount, the adjusting component comprises a rotating rod 8, the rotating rod 8 is rotatably connected to the inside of the connecting plate 7, the rotating rod 8 is fixedly connected with a rotating shaft 9, the outer wall of the rotating shaft 9 is fixedly connected with a louver plate 10, and the rotating shaft 9 is rotatably connected to the inside of the shunt pipe 2.

[0026] The upper end of the smoke exhaust pipe 1 is fixedly connected with a bent pipe 11, and one side of the outer wall of the bent pipe 11 is fixedly connected with a connecting pipe 12, the outer wall of the connecting pipe 12 is fixedly connected with a support frame 13, the outer wall of the connecting pipe 12 is fixedly connected with a support frame 20, the upper surface of the support frame 13 is fixedly connected with a water pump 14, the water pump 14 is fixedly connected to the upper surface of the support frame 20, the input end of the water pump 14 is fixedly connected with a water suction pipe 15, the other end of the water suction pipe 15 is fixed inside the water tank, the output end of the water pump 14 is fixedly connected with a water delivery pipe 16, the outer wall of the water delivery pipe 16 is fixedly connected with a delivery pipe 17, the outer wall of the smoke exhaust pipe 1 is fixedly connected with a mounting frame 18, the delivery pipe 17 is fixedly connected to the outer wall of the mounting frame 18, the inside of the delivery pipe 17 is fixedly connected with a nozzle pipe 19, the inside of the smoke exhaust pipe 1 is sprayed by the nozzle pipe 19 to achieve humidity adjustment of the air, and the nozzle pipe 19 is fixedly connected to the inside of the smoke exhaust pipe 1.

[0027] The outer wall of the support frame 20 is fixedly connected with a fan tube 21, the interior of the fan tube 21 is fixedly connected with a dustproof plate 22, the interior of the fan tube 21 is fixedly connected with a motor 23, the output end of the motor 23 is fixedly connected with a fan blade 24, the forward and reverse rotation of the fan blade 24 is controlled by the motor 23 to realize the air inlet and outlet regulation, and the lower surface of the fan tube 21 is fixedly connected with a support seat 25.

[0028] A method for using a smoke exhaust device for fire protection engineering comprises the following steps: The first step is to install the device. The support frame 13, the support frame 20, and the support seat 25 of the device are fixedly installed on the roof. The fan pipe 21 is fixed between the support seat 25 and the support frame 20. The connecting pipe 12 is fixedly connected between the support frame 13 and the support frame 20. The elbow 11 is fixed to the outer wall of the connecting pipe 12. The smoke exhaust pipe 1 is fixedly installed at the lower end of the elbow 11, and the three mounting frames 18 are fixed to the outer wall of the smoke exhaust pipe 1. The smoke exhaust pipe 1 and the mounting frame 18 are fixedly installed indoors. At the same time, the output The delivery pipe 17 is installed on the outer wall of the three mounting frames 18, the two diversion pipes 2 are fixedly installed on one side of the outer wall of the smoke exhaust pipe 1, the water pump 14 is fixedly installed on the upper surface of the support frame 13 and the support frame 2 20, the water extraction pipe 15 is fixedly installed on the input end of the water pump 14, the other end of the water extraction pipe 15 is connected to the water tank, the water delivery pipe 16 is fixedly installed on the output end of the water pump 14, and the water delivery pipe 16 is installed inside the delivery pipe 17, and the three nozzle pipes 19 inside the smoke exhaust pipe 1 are fixedly installed inside the delivery pipe 17.

[0029] The second step is the daily smoke exhaust and ventilation of the device. The fan blades 24 are driven to rotate by starting the motor 23, so that the outdoor air is sucked into the fan tube 21. The air is filtered and dusted through the dust plate 22 inside the fan tube 21 and then enters the connecting tube 12. The air enters the elbow 11 and the smoke exhaust pipe 1 through the connecting pipe 12. After entering the smoke exhaust pipe 1, the air enters the room through two branch pipes 2. When the air enters the branch pipe 2, it is first filtered and dusted again through the dust plate 3 inside the branch pipe 2. At the same time, the telescopic rod 5 is started to drive the sleeve ring 6 to extend and retract. The extension and retraction of the sleeve ring 6 drives the connecting plate 7 to rise and fall adjustment. The lifting and adjustment of the connecting plate 7 drives the four groups of adjustment components to rotate angles. The connecting plate 7 drives the rotating rod 8 to rotate angles and drives the rotating shaft 9 and the louver 10 to rotate angles and open, so that air enters the room. Then the indoor windows are opened to discharge the original air in the room, so that the gas entering the room flows and circulates, thereby realizing daily smoke exhaust and ventilation.

[0030] The third step is to exhaust smoke during a fire. First, the telescopic rod 5 is started to drive the ring 6 to extend and retract, and the ring 6 is used to drive the connecting plate 7 to be raised and lowered. The connecting plate 7 drives the rotating rod 8 to rotate the angle and drives the rotating shaft 9 and the louver 10 to rotate the angle, so that the louver 10 is opened to the maximum angle. At this time, the motor 23 is started again to drive the fan blades 24 to rotate in the opposite direction, and the indoor smoke is drawn into the smoke exhaust pipe 1 from the diversion pipe 2 and discharged through the bend pipe 11, the connecting pipe 12 and the fan pipe 21. At the same time, the water pump 14 is started, and the water in the water tank is pumped out in combination with the water pumping pipe 15, and is transported to the inside of the delivery pipe 17 through the water pipe 16. A plurality of nozzle pipes 19 are used to spray the inside of the smoke exhaust pipe 1 to humidify the smoke to prevent the smoke from becoming more concentrated inside the smoke exhaust pipe 1 and affecting the smoke exhaust effect.

[0031] Working principle: When in use, when a fire occurs indoors and the smoke is thick, the motor 23 is started to drive the fan blades 24 to reverse and start the smoke exhaust work. The smoke enters the interior of the smoke exhaust pipe 1 from the room through the shunt pipe 2 and then enters the connecting pipe 12 and the fan pipe 21 through the curved pipe 11 and is discharged. According to the amount of smoke in the room, the telescopic rod 5 is turned on to drive the sleeve ring 6 to extend and retract, and the sleeve ring 6 drives the connecting plate 7 to rise and fall. The connecting plate 7 drives the rotating rod 8 to rotate the angle and drives the rotating shaft 9 and the louver 10 to rotate. The opening and closing angle of the louver 10 is adjusted during the rotation process. When the amount of smoke is large, the louver 10 is opened and closed to the maximum to achieve the maximum air displacement. At the same time, the water pump 14 is started to use the water pumping pipe 15 to pump out the water in the water tank and then transport it to the inside of the delivery pipe 17 through the water pipe 16. Then, the three nozzle pipes 19 are used to spray water to the inside of the smoke exhaust pipe 1, so that the smoke is discharged during the exhaust process. The air is humidified to prevent secondary fires and also has an auxiliary effect on smoke exhaust. When the device is conventionally used for ventilation, the indoor windows are first opened, and the motor 23 is started to drive the fan blades 24 to rotate forward, and the outdoor air is sucked into the fan pipe 21 and then enters the smoke exhaust pipe 1 through the connecting pipe 12 and the bent pipe 11. The telescopic rod 5 drives the ring 6 to extend and retract to adjust the connecting plate 7, and at the same time drives the rotating rod 8 to rotate the angle, and drives the rotating shaft 9 and the louver 10 to rotate, and then adjust the opening and closing angle of the louver 10 to discharge the air into the room. At the same time, the water pump 14 is started to pump the water in the water tank into the water suction pipe 15 and then transport it to the inside of the delivery pipe 17 through the water delivery pipe 16 and use the nozzle pipe 19 to spray the inside of the smoke exhaust pipe 1 to humidify the air so that the humidified air enters the room, and then combined with the opening of the indoor windows, the air circulates.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A smoke exhaust device for fire protection engineering, comprising a smoke exhaust pipe (1), characterized in that: The outer wall of the smoke exhaust pipe (1) is fixedly connected to a diverter pipe (2), the interior of the diverter pipe (2) is fixedly connected to a dustproof plate (3), the interior of the diverter pipe (2) is fixedly connected to a connecting frame (4), the outer wall of the connecting frame (4) is rotatably connected to a telescopic rod (5), the output end of the telescopic rod (5) is fixedly connected to a sleeve ring (6), the interior of the sleeve ring (6) is rotatably connected to a connecting plate (7), an adjusting component is arranged inside the connecting plate (7), and four groups of the adjusting components are arranged, and the adjusting components are used to assist in controlling the amount of air inlet and outlet.

2. A smoke exhaust device for fire protection engineering according to claim 1, characterized in that: The adjustment assembly comprises a rotating rod (8), the rotating rod (8) being rotatably connected to the inside of the connecting plate (7), the inside of the rotating rod (8) being fixedly connected to a rotating shaft (9), the outer wall of the rotating shaft (9) being fixedly connected to a louver plate (10), and the rotating shaft (9) being rotatably connected to the inside of the diverter pipe (2).

3. A smoke exhaust device for fire protection engineering according to claim 2, characterized in that: The upper end of the smoke exhaust pipe (1) is fixedly connected to a bent pipe (11), one side of the outer wall of the bent pipe (11) is fixedly connected to a connecting pipe (12), the outer wall of the connecting pipe (12) is fixedly connected to a first support frame (13), and the outer wall of the connecting pipe (12) is fixedly connected to a second support frame (20).

4. A smoke exhaust device for fire protection engineering according to claim 3, characterized in that: A water pump (14) is fixedly connected to the upper surface of the first support frame (13), the water pump (14) is fixedly connected to the upper surface of the second support frame (20), the input end of the water pump (14) is fixedly connected to a water pumping pipe (15), and the output end of the water pump (14) is fixedly connected to a water delivery pipe (16).

5. A smoke exhaust device for fire protection engineering according to claim 4, characterized in that: The outer wall of the water delivery pipe (16) is fixedly connected to a delivery pipe (17), the outer wall of the smoke exhaust pipe (1) is fixedly connected to a mounting frame (18), the delivery pipe (17) is fixedly connected to the outer wall of the mounting frame (18), the interior of the delivery pipe (17) is fixedly connected to a nozzle pipe (19), and the nozzle pipe (19) is fixedly connected to the interior of the smoke exhaust pipe (1).

6. A smoke exhaust device for fire protection engineering according to claim 5, characterized in that: The outer wall of the second support frame (20) is fixedly connected to a fan tube (21), the interior of the fan tube (21) is fixedly connected to a second dustproof plate (22), the interior of the fan tube (21) is fixedly connected to a motor (23), the output end of the motor (23) is fixedly connected to a fan blade (24), and the lower surface of the fan tube (21) is fixedly connected to a support seat (25).

7. A method for using the smoke exhaust device for fire protection engineering according to claim 6, characterized in that: The method comprises the following steps: The first step is to install the device. The first support frame (13), the second support frame (20), and the support base (25) of the device are fixedly installed on the roof. The fan pipe (21) is fixed between the support base (25) and the second support frame (20). The connecting pipe (12) is fixedly connected between the first support frame (13) and the second support frame (20). The bent pipe (11) is fixed to the outer wall of the connecting pipe (12). The smoke exhaust pipe (1) is fixedly installed at the lower end of the bent pipe (11). The three mounting brackets (18) are fixed to the outer wall of the smoke exhaust pipe (1). The smoke exhaust pipe (1) and the mounting brackets (18) are fixedly installed indoors. At the same time, the exhaust pipe (1) is fixedly installed indoors. The delivery pipe (17) is mounted on the outer wall of the three mounting frames (18), the two diversion pipes (2) are fixedly mounted on one side of the outer wall of the smoke exhaust pipe (1), the water pump (14) is fixedly mounted on the upper surface of the first support frame (13) and the second support frame (20), the water extraction pipe (15) is fixedly mounted on the input end of the water pump (14), the other end of the water extraction pipe (15) is connected to the water tank, the water delivery pipe (16) is fixedly mounted on the output end of the water pump (14), and the water delivery pipe (16) is mounted inside the delivery pipe (17), and the three nozzle pipes (19) inside the smoke exhaust pipe (1) are fixedly mounted inside the delivery pipe (17); In the second step, the device performs daily smoke exhaust and ventilation. The fan blades (24) are driven to rotate by starting the motor (23), so that outdoor air is sucked into the fan pipe (21). The air passes through the dust plate 2 (22) inside the fan pipe (21) to filter and remove dust, and then enters the connecting pipe (12). The air enters the elbow (11) and the smoke exhaust pipe (1) through the connecting pipe (12). After entering the smoke exhaust pipe (1), the air enters the room through the two branch pipes (2). When the air enters the branch pipe (2), it first passes through the branch pipe (2) inside the branch pipe (2). The dustproof plate (3) performs a second filtration and dust removal, and at the same time, the telescopic rod (5) is started to drive the sleeve ring (6) to extend and retract, and the sleeve ring (6) extends and retracts to drive the connecting plate (7) to move up and down, and the four groups of adjustment components are driven to rotate angles through the lifting and adjustment of the connecting plate (7). The connecting plate (7) drives the rotating rod (8) to rotate angles and drives the rotating shaft (9) and the louver plate (10) to rotate angles and open, so that air can enter the room, and then the indoor windows are opened to discharge the original indoor air, so that the gas entering the room can flow and circulate, thereby realizing daily smoke exhaust and ventilation work. The third step is to exhaust smoke during a fire. First, the telescopic rod (5) is started to drive the sleeve ring (6) to extend and retract, and the sleeve ring (6) is used to drive the connecting plate (7) to move up and down. The connecting plate (7) drives the rotating rod (8) to rotate and drives the rotating shaft (9) and the shutter plate (10) to rotate, so that the shutter plate (10) is opened to the maximum angle. At this time, the motor (23) is started to drive the fan blade (24) to rotate in the opposite direction, so that the indoor smoke is sucked into the smoke exhaust pipe (1) from the diversion pipe (2) and discharged through the bent pipe (11), the connecting pipe (12) and the fan pipe (21). At the same time, the water pump (14) is started, and the water in the water tank is pumped out in combination with the water pumping pipe (15) and transported to the inside of the transport pipe (17) through the water pipe (16). The inside of the smoke exhaust pipe (1) is sprayed with a plurality of nozzle pipes (19) to humidify the smoke, so as to prevent the smoke from becoming more concentrated inside the smoke exhaust pipe (1) and affecting the smoke exhaust effect.

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