Fire-fighting smoke exhaust system

Abstract

The utility model discloses a fire-fighting smoke exhaust system which comprises a smoke exhaust pipe, a filter cartridge and an air inlet pipe, a smoke inlet is formed in one end of the smoke exhaust pipe, a smoke outlet is formed in the other end of the smoke exhaust pipe, a smoke exhaust fan is arranged at the smoke inlet, and at least one limiting column is arranged on the outer wall of the smoke inlet; a filter screen is arranged at one end of the filter cartridge, a sliding groove is formed in the outer wall of the other end of the filter cartridge and extends in the axial direction of the smoke exhaust pipe, the smoke inlet is sleeved with the filter cartridge, and the limiting column can slide along the sliding groove; one end of the air inlet pipe is an air inlet, the other end of the air inlet pipe is an air outlet, the air inlet extends out of the smoke outlet, the air outlet penetrates through the side wall, close to the smoke inlet, of the smoke exhaust pipe, and an air inlet fan is arranged in the air inlet pipe. The detachable filter cartridge is used for filtering smoke, it is guaranteed that air exhausted outside at any time is clean, air sucked into a room is clean, the body health of indoor personnel is guaranteed, and environmental protection is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment, and in particular to a fire smoke exhaust system. Background Technology

[0002] Smoke is the leading cause of death in building fires, accounting for a significant proportion of deaths, reaching up to 80%. Among those who die from burns, most are first poisoned and then burned. The majority of fire fatalities are caused by asphyxiation from dense smoke inhalation. Furthermore, up to 60% of fire-related illnesses are induced by inhaling toxic gases. A Chinese utility model patent (CN210892044U) discloses a smoke extraction device for fire protection engineering, including a duct and an exhaust fan installed within the duct. The duct inlet is equipped with a filter, and the duct interior contains a first control box and a second control box, which can adjust the exhaust fan's power based on the amount and temperature of the smoke. However, while this technology includes a filter, its filtration efficiency tends to decrease after repeated use, and the smoke concentration can temporarily increase during smoke extraction, allowing occupants to still inhale large amounts of smoke, negatively impacting their health. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a fire-fighting smoke extraction system that ensures the internal air remains clean.

[0004] A fire-fighting smoke exhaust system according to a first aspect of the present invention includes a smoke exhaust pipe, a filter cylinder, and an air inlet pipe. One end of the smoke exhaust pipe is a smoke inlet, and the other end is a smoke outlet. A smoke exhaust fan is installed at the smoke inlet, and at least one limiting post is provided on the outer wall of the smoke inlet. One end of the filter cylinder is provided with a filter screen, and the outer wall of the other end is provided with a sliding groove. The sliding groove extends along the axial direction of the smoke exhaust pipe. The filter cylinder is sleeved on the smoke inlet, and the limiting post can slide along the sliding groove. One end of the air inlet pipe is an air inlet, and the other end is an air outlet. The air inlet extends outside the smoke outlet, and the air outlet penetrates the side wall of the smoke exhaust pipe near the smoke inlet. An air intake fan is built into the air inlet pipe.

[0005] A fire smoke exhaust system according to an embodiment of the present utility model has at least the following beneficial effects: the smoke is filtered by a detachable filter cartridge, ensuring that the air discharged to the outside is clean at all times, so that the air inhaled into the room is clean, thus protecting the health of the people in the room and protecting the environment.

[0006] According to some embodiments of the present invention, the filter cartridge has an activated carbon component built in.

[0007] According to some embodiments of the present invention, the activated carbon assembly includes a hollow shell and an activated carbon bag. Ventilation holes are passed through both ends of the shell, and the opposite sides of the shell are open. The activated carbon bag is built into the shell, and the shell is detachably connected to the filter cartridge.

[0008] According to some embodiments of the present invention, an annular mounting block is provided on the inner side of the filter cartridge, and a magnetic block is provided on the mounting block. The housing can be magnetically connected with the magnetic block so that the housing is fixed on the mounting block.

[0009] According to some embodiments of this utility model, the air outlet is connected to a telescopic tube.

[0010] According to some embodiments of the present invention, the exhaust fan is electrically connected to a drive motor, and the drive motor can adjust the speed of the exhaust fan.

[0011] According to some embodiments of the present invention, a guide groove is provided at the end of the sliding groove away from the filter screen, and the guide groove extends circumferentially along the filter cylinder.

[0012] According to some embodiments of the present invention, the two inner sidewalls near the end of the guide groove are provided with locking blocks, which cooperate with the end of the guide groove to form a locking groove, and the shape of the end of the guide groove matches the shape of the limiting post.

[0013] According to some embodiments of the present invention, the card block is provided with guide slopes on both the side near the sliding groove and the side away from the sliding groove.

[0014] According to some embodiments of this utility model, the card block is elastic.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0017] Figure 1 This is a cross-sectional schematic diagram of the fire smoke exhaust system according to an embodiment of the present utility model;

[0018] Figure 2 This is a cross-sectional schematic diagram of the activated carbon component of the fire smoke exhaust system according to an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the installation of the limiting column and filter cylinder of the fire smoke exhaust system according to an embodiment of this utility model.

[0020] 100. Smoke exhaust pipe; 110. Smoke inlet; 111. Smoke exhaust fan; 120. Smoke exhaust outlet; 130. Limiting post;

[0021] 200. Filter cartridge; 210. Filter screen; 220. Sliding groove; 230. Mounting block; 231. Magnetic block; 240. Guide groove; 241. Locking block; 2411. Guide slope; 242. Locking slot;

[0022] 300. Inlet pipe; 310. Inlet port; 320. Outlet port; 321. Telescopic pipe; 330. Inlet fan;

[0023] 400. Activated carbon assembly; 410. Shell; 411. Ventilation hole; 420. Activated carbon bag; Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] Reference Figures 1 to 3A fire-fighting smoke exhaust system according to an embodiment of the present invention includes a smoke exhaust pipe 100, a filter cylinder 200, and an air inlet pipe 300. One end of the smoke exhaust pipe 100 is a smoke inlet 110, and the other end is a smoke outlet. A smoke exhaust fan 111 is provided at the smoke inlet 110, and at least one limiting post 130 is provided on the outer wall of the smoke inlet 110. One end of the filter cylinder 200 is provided with a filter screen 210, and the outer wall of the other end is provided with a sliding groove 220. The sliding groove 220 extends along the axial direction of the smoke exhaust pipe 100. The filter cylinder 200 is sleeved on the smoke inlet 110, and the limiting post 130 can slide along the sliding groove 220. One end of the air inlet pipe 300 is an air inlet 310, and the other end is an air outlet 320. The air inlet 310 extends outside the smoke outlet, and the air outlet 320 penetrates the side wall of the smoke exhaust pipe 100 near the smoke inlet 110. An air intake fan 330 is built into the air inlet pipe 300.

[0029] In the event of a disaster, the exhaust fan 111 and the intake fan 330 will be activated simultaneously. Before the smoke enters the exhaust pipe 100 through the smoke inlet 110, it will pass through the filter cartridge 200 to filter the smoke, so that the gas entering the exhaust pipe 100 is clean. The filtered smoke will be discharged from the smoke outlet. At the same time, fresh air from outside will enter the intake pipe 300 through the air inlet 310 and enter the room through the air outlet 320 to replenish the fresh air in the room, reduce the smoke concentration in the room, and ensure that the people inside can breathe normally.

[0030] During routine maintenance, the filter cartridge 200 can be installed or removed by sliding the limiting post 130 in the sliding groove 220, making it convenient to replace the qualified filter screen 210.

[0031] In summary, the use of the detachable filter cartridge 200 to filter the flue gas ensures that the air discharged outside is clean at all times, thus ensuring that the air inhaled indoors is clean, protecting the health of indoor occupants, and protecting the environment.

[0032] In some embodiments, the filter cartridge 200 also houses an activated carbon assembly 400. The activated carbon assembly 400 adsorbs small molecule impurities, further filtering and cleaning the flue gas. Specifically, the activated carbon assembly 400 includes a hollow shell 410 and an activated carbon bag 420. Ventilation holes 411 extend through both ends of the shell 410, and the opposite sides of the shell 410 are open. The activated carbon bag 420 is housed within the shell 410, and the shell 410 is detachably connected to the filter cartridge 200. The entire activated carbon assembly 400 is detachably installed within the filter cartridge 200 for easy replacement. Furthermore, to facilitate replacement, an annular mounting block 230 is provided on the inner side of the filter cartridge 200. The mounting block 230 is equipped with a magnetic block 231, and the shell 410 can be magnetically connected to the magnetic block 231 to fix the shell 410 to the mounting block 230. The detachable installation is achieved through the magnetic connection between the magnetic block 231 on the mounting block 230 and the shell 410. In addition, the open shell 410 on both sides allows users to easily pull out or insert the activated carbon bag 420 from both sides of the shell 410.

[0033] In addition, the air drawn in from the outside needs to circulate around the people inside the room, so the air outlet 320 is connected to a telescopic tube 321. At the start of a disaster, the telescopic tube 321 can be extended directly to the lower part of the room to facilitate the people inside to access fresh air. At the same time, it can be retracted and stored when not needed.

[0034] In addition, the exhaust fan 111 is electrically connected to a drive motor, which can adjust the speed of the exhaust fan 111 to control the exhaust speed.

[0035] In some embodiments, a guide groove 240 is provided at the end of the sliding groove 220 away from the filter screen 210. The guide groove 240 extends circumferentially along the filter cartridge 200. Simultaneously, two locking blocks 241 are provided on the two inner sidewalls near the end of the guide groove 240. The locking blocks 241 cooperate with the end of the guide groove 240 to form a locking groove 242. The shape of the end of the guide groove 240 matches the shape of the limiting post 130. The sliding blocks slide along the sliding groove 220 and the guide sliding blocks, allowing the sliding blocks to engage in the locking groove 242, preventing the entire filter cartridge 200 from coming out and falling off without external force. To facilitate installation and removal of the filter cartridge 200 by maintenance personnel, guide ramps 2411 are provided on both the side of the locking block 241 near the sliding groove 220 and the side away from the sliding groove 220, and the locking block 241 is elastic.

[0036] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A fire-fighting smoke exhaust system, characterized in that, include: The exhaust pipe (100) has an inlet (110) at one end and an outlet at the other end. An exhaust fan (111) is provided at the inlet (110), and at least one limiting post (130) is provided on the outer wall of the inlet (110). A filter cylinder (200) is provided with a filter screen (210) at one end and a sliding groove (220) on the outer wall of the other end. The sliding groove (220) extends along the axial direction of the exhaust pipe (100). The filter cylinder (200) is sleeved on the smoke inlet (110), and the limiting post (130) can slide along the sliding groove (220). An air intake pipe (300) has an air inlet (310) at one end and an air outlet (320) at the other end. The air inlet (310) extends beyond the smoke outlet, and the air outlet (320) penetrates the side wall of the exhaust pipe (100) near the smoke inlet (110). An air intake fan (330) is built into the air intake pipe (300).

2. The fire-fighting smoke exhaust system according to claim 1, characterized in that, The filter cartridge (200) contains an activated carbon assembly (400).

3. A fire-fighting smoke exhaust system according to claim 2, characterized in that, The activated carbon assembly (400) includes a hollow shell (410) and an activated carbon bag (420). Ventilation holes (411) are passed through both ends of the shell (410). The shell (410) is open on opposite sides. The activated carbon bag (420) is built into the shell (410). The shell (410) is detachably connected to the filter cartridge (200).

4. A fire-fighting smoke exhaust system according to claim 3, characterized in that, The filter cartridge (200) has an annular mounting block (230) on its inner side. The mounting block (230) is provided with a magnetic block (231). The housing (410) can be magnetically connected to the magnetic block (231) so that the housing (410) is fixed on the mounting block (230).

5. A fire-fighting smoke exhaust system according to claim 1, characterized in that, The air outlet (320) is connected to a telescopic tube (321).

6. A fire-fighting smoke exhaust system according to claim 1, characterized in that, The exhaust fan (111) is electrically connected to a drive motor, which can adjust the speed of the exhaust fan (111).

7. A fire-fighting smoke exhaust system according to claim 1, characterized in that, The sliding groove (220) is provided with a guide groove (240) at the end away from the filter screen (210), and the guide groove (240) extends circumferentially along the filter cylinder (200).

8. A fire-fighting smoke exhaust system according to claim 7, characterized in that, The guide groove (240) has two inner sidewalls near the end with a locking block (241). The locking block (241) cooperates with the end of the guide groove (240) to form a locking groove (242). The shape of the end of the guide groove (240) matches the shape of the limiting post (130).

9. A fire-fighting smoke exhaust system according to claim 8, characterized in that, The card block (241) is provided with guide slopes (2411) on both the side close to the sliding groove (220) and the side away from the sliding groove (220).

10. A fire-fighting smoke exhaust system according to claim 8, characterized in that, The card block (241) is elastic.

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