Smoke exhaust device for fire engineering

Abstract

The invention belongs to the technical field of fire-fighting engineering, and discloses a fire-fighting engineering smoke exhaust device which comprises a mounting frame, a fire-fighting pipeline connected with the mounting frame and a filter screen arranged at the end of the fire-fighting pipeline, and a plurality of mounting plates are distributed on the inner wall of the fire-fighting pipeline at equal intervals; a conical plate is arranged on the side wall, close to the filter screen, of the mounting plate, and a detection assembly used for detecting the blockage condition of the filter screen is arranged on the fire fighting pipeline. The method has the effect of reducing the difficulty of judging the service life of the filter screen by workers.

Description

Technical Field

[0001] The present invention relates to the technical field of fire protection engineering, and particularly to a smoke exhaust device for fire protection engineering. Background Art

[0002] In fire protection engineering, the smoke exhaust system is a very important component. It is the hub of indoor and outdoor air circulation, mainly playing the role of discharging indoor smoke to the outside. When installing the smoke exhaust device pipeline, the connection between pipelines is usually fixedly connected by welding or bolts. The filter screen is a part of the smoke exhaust device for fire protection engineering, mainly playing the role of filtering and blocking. The filter screen can block large-particle dust and sundries from entering the smoke exhaust fan, ensuring the normal operation of the fan.

[0003] A smoke exhaust device for fire protection engineering is disclosed in the Chinese utility model patent with the publication number CN219222736U, which solves the problem that the smoke exhaust pipeline in current fire protection engineering is not easy to be quickly disassembled, which is likely to affect the use of the pipeline. It includes an installation frame, and both ends of the installation frame are hermetically connected with fire protection pipelines. Fixed grooves are opened on both sides of one end of each fire protection pipeline. In the present invention, when pressing the connecting frame towards the installation side, the connecting frame drives the round rod to move, the round rod pushes the moving plate to move, and as the moving plate moves, it drives the rotating rod to move. The rotating rod drives the sliding plate to move towards both sides, and the movement of the sliding plate drives the movement of the rotating rod on the other side, so that the rotating rod on the other side drives the fixing block to move out of the fixed groove, and then the fire protection pipeline is no longer fixedly connected to the installation frame, facilitating the removal of the fire protection pipeline. Under the disassembly and assembly of the disassembly component, the fire protection pipeline can be quickly disassembled and assembled, ensuring the use of the fire protection pipeline.

[0004] Regarding the above related technologies, the inventor believes that there are the following defects: The above device blocks impurities through the filter screen provided on the fire protection pipeline. Since the filter screen needs to be cleaned or replaced after being used for a period of time, in actual use, most workers regularly replace or clean the filter screen. When the working environment of the filter screen is relatively harsh, the service life of the filter screen often expires in advance. Since the working environment of the filter screen is in a constantly changing state, it is difficult for workers to judge the current working state of the filter screen, and the use experience is poor. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a smoke exhaust device for fire protection engineering.

[0006] The above technical object of the present invention is achieved by the following technical solutions: A smoke exhaust device for a fire protection project, including a mounting frame, a fire protection pipe connected to the mounting frame, and a filter screen arranged at the end of the fire protection pipe. A plurality of mounting plates are evenly distributed on the inner wall of the fire protection pipe. A conical plate is arranged on the side wall of the mounting plate close to the filter screen. A detection component for detecting the blockage condition of the filter screen is arranged on the fire protection pipe.

[0007] By adopting the above technical solutions, when the staff needs to exhaust smoke, the staff needs to turn on the exhaust fan in the fire protection pipe, so that the fire protection pipe can continuously extract the indoor air, thereby enabling the smoke to quickly move through the fire protection pipe to the outside. At this time, the filter screen continuously filters the exhausted air, thereby reducing the probability of large particle impurities entering the fire protection pipe. During this process, the detection component automatically detects the air flow rate passing through the filter screen, thereby detecting the usage state of the filter screen. The staff only needs to check the detection result of the detection component to judge the usage state of the filter screen, thereby improving the usage experience of the staff.

[0008] Further, the detection component includes a baffle fixed on the inner bottom wall of the fire protection pipe. A plurality of uniformly distributed communication grooves are formed on the side wall of the baffle. The detection component further includes a plurality of rotating rods sequentially arranged on the inner walls of the plurality of communication grooves, a plurality of rotating plates respectively fixed to the plurality of rotating rods, a plurality of first metal sheets respectively fixed to the side walls of the plurality of rotating plates, a plurality of second metal sheets respectively fixed to the bottom surfaces of the plurality of mounting plates, a battery box arranged on the side wall of the fire protection pipe, an indicating board fixed to the side wall of the fire protection pipe, and a plurality of warning lights arranged on the indicating board. The battery box is electrically connected to the plurality of first metal sheets, and the plurality of second metal sheets are electrically connected to the plurality of warning lights. The upper surface of the baffle is fixed to the inner top wall of the fire protection pipe.

[0009] Further, the plurality of second metal sheets located on the same mounting plate are connected in series with each other.

[0010] Further, the plurality of second metal sheets located on the same mounting plate are connected to the same warning light.

[0011] By adopting the above technical solution, when the staff member turns on the exhaust fan inside the fire pipeline, air continuously passes through the filter screen and moves towards the direction close to the mounting bracket. As a result, the rotating plate rotates upward under the action of the air, causing the first metal sheet to move upward and press against the second metal sheet, thereby connecting the circuits of the battery box, the first metal sheet, the second metal sheet, and the warning lights, and enabling the four warning lights to light up simultaneously. During this process, the four second metal sheets on the same mounting plate form a group and correspond to one of the warning lights. If the filter screen area facing one of the rotating plates becomes blocked, the air flowing towards the rotating plate cannot push the rotating plate upward. Since the four second metal sheets on the same mounting plate are connected in series, the warning light corresponding to this rotating plate remains off. The staff member can judge the blockage condition of the filter screen by checking whether the four warning lights are lit and determine whether to replace the filter screen according to the actual situation.

[0012] Further, a threaded groove communicating with its inner cavity is formed on the side wall of the fire pipeline, and a threaded plate is threadedly connected in the threaded groove. The battery box is arranged in the threaded plate.

[0013] Further, a sliding groove is formed on the side wall of the threaded plate, a sliding block is slidably arranged in the sliding groove, an annular groove matching with the sliding block is formed on the inner wall of the sliding groove, and the sliding block is fixedly connected with the battery box.

[0014] By adopting the above technical solution, when the battery in the battery box has been used for a period of time, the staff member needs to replace the battery. At this time, the staff member only needs to hold the battery box and rotate the threaded plate, so that the threaded plate moves away from the fire pipeline, and then the threaded plate and the battery box are separated from the fire pipeline, thereby reducing the difficulty for the staff member to replace the battery. During this process, the battery box does not rotate relative to the fire pipeline, thus reducing the probability of the wires connected to the battery box breaking. Subsequently, when the threaded plate and the battery box are separated from the fire pipeline, the staff member only needs to hold the battery box and rotate the threaded plate, so that the sliding block rotates relative to the threaded plate and finally aligns with the sliding groove. Further, the staff member only needs to pull the threaded plate, and the sliding block can slide into the sliding groove, so that the threaded plate is separated from the battery box.

[0015] Further, partition plates for blocking the rotating plates are fixed on the inner bottom walls of the plurality of communication grooves.

[0016] Further, a placement ring for reducing the difficulty for the staff member to rotate the threaded plate is fixed on the side wall of the threaded plate.

[0017] By adopting the above technical solution, when the staff connects the threaded plate with the threaded groove, the placement ring moves towards the direction close to the fire pipeline and finally abuts against the side wall of the fire pipeline, so as to keep the threaded plate stable, thereby reducing the operation difficulty of the staff.

[0018] Furthermore, a silica gel sheet is arranged on the side wall of the placement ring close to the fire pipeline.

[0019] Furthermore, the rotating plate is a rotating plate made of polytetrafluoroethylene.

[0020] By adopting the above technical solution, polytetrafluoroethylene (PTFE), also known as Teflon, commonly known as the "king of plastics", is a high molecular polymer obtained by polymerizing tetrafluoroethylene as a monomer. Polytetrafluoroethylene has excellent heat resistance and cold resistance, and has the characteristics of being acid and alkali resistant and resistant to various organic solvents, thus effectively extending the service life of the rotating plate.

[0021] In summary, the present invention has the following beneficial effects:

[0022] 1. In this application, when the staff needs to exhaust smoke, the staff only needs to turn on the exhaust fan in the fire pipeline, and the fire pipeline can continuously extract the indoor air, so that the smoke quickly moves to the outside through the fire pipeline. At this time, the filter screen continuously filters the exhausted air, thereby reducing the probability of large particle impurities entering the fire pipeline. During this process, the detection component automatically detects the air flow rate passing through the filter screen, so as to detect the use state of the filter screen. The staff only needs to check the detection result of the detection component to judge the use state of the filter screen, thereby improving the use experience of the staff;

[0023] 2. In this application, when the staff turns on the exhaust fan in the fire pipeline, the air continuously passes through the filter screen and moves towards the direction close to the mounting frame, thereby causing the rotating plate to rotate upward under the action of the air, so that the first metal sheet moves upward and abuts against the second metal sheet, thereby connecting the circuits of the battery box, the first metal sheet, the second metal sheet and the warning lights, so that the four warning lights light up at the same time. During this process, the four second metal sheets on the same mounting plate form a group and correspond to one of the warning lights. If the filter screen area opposite to one of the rotating plates is blocked, the air flowing towards the rotating plate cannot push the rotating plate upward. Since the four second metal sheets on the same mounting plate are connected in series, the warning light corresponding to the rotating plate remains off at this time. The staff can judge the blockage condition of the filter screen by checking whether the four warning lights are on, and judge whether to replace the filter screen according to the actual situation;

[0024] 3. In this application, when the battery in the battery box has been used for a period of time, the staff needs to replace the battery. At this time, the staff only needs to hold the battery box and rotate the threaded plate, then the threaded plate can move away from the fire pipeline, and further separate the threaded plate and the battery box from the fire pipeline, thus reducing the difficulty for the staff to replace the battery. During this process, the battery box does not rotate relative to the fire pipeline, thereby reducing the probability of the wires connected to the battery box breaking. Subsequently, when the threaded plate and the battery box are separated from the fire pipeline, the staff only needs to hold the battery box and rotate the threaded plate, then the sliding block can rotate relative to the threaded plate and finally align with the sliding groove. Further, the staff only needs to pull the threaded plate, then the sliding block can slide into the sliding groove, thus separating the threaded plate from the battery box. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0026] Figure 2 is a schematic diagram of the warning light and its connection structure of an embodiment of the present invention;

[0027] Figure 3 is a schematic diagram of the conical plate and its connection structure of an embodiment of the present invention;

[0028] Figure 4 is a schematic diagram of the partition plate and its connection structure of an embodiment of the present invention;

[0029] Figure 5 is a schematic diagram of the detection component and its connection structure of an embodiment of the present invention;

[0030] Figure 6 is a schematic diagram of the sliding groove and its connection structure of an embodiment of the present invention;

[0031] Figure 7 is a schematic diagram of the annular groove and its connection structure of an embodiment of the present invention;

[0032] Figure 8 is a schematic diagram of the sliding block and its connection structure of an embodiment of the present invention;

[0033] Figure 9 is the circuit connection structure of the warning light in an embodiment of the present invention.

[0034] In the figure: 1, mounting bracket; 11, fire pipeline; 2, filter screen; 21, mounting plate; 22, conical plate; 3, detection component; 31, baffle plate; 311, communication groove; 32, rotating rod; 33, rotating plate; 34, first metal sheet; 35, second metal sheet; 36, battery box; 37, indicator board; 38, warning lamp; 4, threaded groove; 41, threaded plate; 5, sliding groove; 51, sliding block; 6, annular groove; 61, partition plate; 7, placement ring; 8, silica gel sheet. Specific implementation manner

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0036] As Figures 1-9 shown, the embodiment of the present application discloses a smoke exhaust device for a fire protection project, including a mounting bracket 1, a fire pipeline 11, a filter screen 2, a mounting plate 21, a conical plate 22, a detection component 3, a threaded plate 41, a sliding block 51, a partition plate 61, a placement ring 7 and a silica gel sheet 8. The fire pipeline 11 is connected to the mounting bracket 1, and the filter screen 2 is arranged at the end of the fire pipeline 11 for filtering air. The mounting plate 21 is a rectangular plate-like structure, and there are four mounting plates 21 which are equally spaced and distributed on the inner wall of the fire pipeline 11. The conical plate 22 is a plate-like structure, and the conical plate 22 is arranged on the side wall of the mounting plate 21 close to the filter screen 2.

[0037] The detection component 3 is arranged on the fire pipeline 11 and is used to detect the clogging condition of the filter screen 2. The detection component 3 includes a baffle 31, a rotating rod 32, a rotating plate 33, a first metal sheet 34, a second metal sheet 35, a battery box 36, an indicator board 37 and a warning light 38. The baffle 31 is in the shape of a rectangular plate, and the baffle 31 is fixed on the inner bottom wall of the fire pipeline 11. A plurality of uniformly distributed communication grooves 311 are formed on the side wall of the baffle 31. The rotating rod 32 is in the shape of a round rod, and a plurality of rotating rods 32 are provided and are sequentially rotatably arranged on the inner walls of the plurality of communication grooves 311. The rotating plate 33 is in the shape of a rectangular plate, and a plurality of rotating plates 33 are provided and are respectively fixed to the plurality of rotating rods 32. The first metal sheet 34 is in the shape of a rectangular sheet, and a plurality of first metal sheets 34 are provided and are respectively fixed on the side walls of the plurality of rotating plates 33. The second metal sheet 35 is in the shape of a square sheet, and a plurality of second metal sheets 35 are provided and are respectively fixed on the bottom surfaces of the plurality of mounting plates 21. The battery box 36 is arranged on the side wall of the fire pipeline 11. The indicator board 37 is in the shape of a rectangular plate, and the indicator board 37 is fixed on the side wall of the fire pipeline 11. Four warning lights 38 are provided and are sequentially arranged on the indicator board 37. The battery box 36 is electrically connected to the plurality of first metal sheets 34, and the plurality of second metal sheets 35 are electrically connected to the plurality of warning lights 38, and the upper surface of the baffle 31 is fixed to the inner top wall of the fire pipeline 11. The plurality of second metal sheets 35 on the same mounting plate 21 are connected in series with each other, and the plurality of second metal sheets 35 on the same mounting plate 21 are connected to the same warning light 38.

[0038] When the staff turns on the exhaust fan in the fire pipeline 11, air continuously passes through the filter screen 2 and moves towards the direction close to the mounting rack 1, thereby causing the rotating plate 33 to rotate upward under the action of the air, so that the first metal sheet 34 moves upward and abuts against the second metal sheet 35, thereby connecting the circuits of the battery box 36, the first metal sheet 34, the second metal sheet 35 and the warning light 38, so that the four warning lights 38 light up simultaneously. During this process, the four second metal sheets 35 on the same mounting plate 21 form a group and correspond to one of the warning lights 38. If the area of the filter screen 2 opposite to one of the rotating plates 33 is clogged, the air flowing towards the rotating plate 33 cannot push the rotating plate 33 upward. Since the four second metal sheets 35 on the same mounting plate 21 are connected in series with each other, the warning light 38 corresponding to the rotating plate 33 remains off at this time. The staff can judge the clogging condition of the filter screen 2 by checking whether the four warning lights 38 are lit, and judge whether to replace the filter screen 2 according to the actual situation.

[0039] A threaded groove 4 communicating with its inner cavity is formed in the side wall of the fire pipeline 11. A threaded plate 41 is threadedly connected in the threaded groove 4, and the battery box 36 is rotatably connected to the inner wall of the threaded plate 41. A sliding groove 5 is formed in the side wall of the threaded plate 41. The sliding block 51 is of a block structure and is slidably arranged in the sliding groove 5. An annular groove 6 matching the sliding block 51 is formed in the inner wall of the sliding groove 5, and the sliding block 51 is fixed to the battery box 36.

[0040] When the battery in the battery box 36 has been used for a period of time, the staff needs to replace the battery. At this time, the staff only needs to hold the battery box 36 and rotate the threaded plate 41, then the threaded plate 41 can move away from the fire pipeline 11, so that the threaded plate 41 and the battery box 36 are separated from the fire pipeline 11, thus reducing the difficulty for the staff to replace the battery. During this process, the battery box 36 does not rotate relative to the fire pipeline 11, thereby reducing the probability of the wire connected to the battery box 36 breaking. Subsequently, when the threaded plate 41 and the battery box 36 are separated from the fire pipeline 11, the staff only needs to hold the battery box 36 and rotate the threaded plate 41, then the sliding block 51 can rotate relative to the threaded plate 41 and finally be aligned with the sliding groove 5. Further, the staff only needs to pull the threaded plate 41, then the sliding block 51 can slide into the sliding groove 5, so that the threaded plate 41 is separated from the battery box 36.

[0041] The partition plate 61 is of a rectangular plate structure. There are multiple partition plates 61 corresponding to the multiple communication grooves 311 one by one. The partition plate 61 is fixed on the inner bottom wall of the communication groove 311 to block the rotating plate 33. The placement ring 7 is of a circular ring structure and is fixed on the side wall of the threaded plate 41 to reduce the difficulty for the staff to rotate the threaded plate 41.

[0042] When the staff connects the threaded plate 41 with the threaded groove 4, the placement ring 7 moves towards the fire pipeline 11 and finally abuts against the side wall of the fire pipeline 11, so that the threaded plate 41 is kept stable, thereby reducing the operation difficulty for the staff.

[0043] In order to improve the stability of the placement ring 7, a silica gel sheet 8 is arranged on the side wall of the placement ring 7 close to the fire pipeline 11.

[0044] In order to extend the service life of the rotating plate 33, the rotating plate 33 is made of polytetrafluoroethylene. Polytetrafluoroethylene (PTFE), also known as Teflon, commonly known as the "king of plastics", is a high molecular polymer obtained by polymerizing tetrafluoroethylene as a monomer. Polytetrafluoroethylene has excellent heat resistance and cold resistance, and has the characteristics of being acid and alkali resistant and resistant to various organic solvents, thus effectively extending the service life of the rotating plate 33.

[0045] In this embodiment, the working principle of a smoke exhaust device for a fire protection project is as follows: When the staff needs to exhaust smoke, the staff needs to turn on the exhaust fan in the fire pipeline 11, so that the fire pipeline 11 can continuously extract the indoor air, thereby enabling the smoke to quickly move through the fire pipeline 11 to the outside. At this time, the filter net 2 continuously filters the exhausted air, thereby reducing the probability of large particle impurities entering the fire pipeline 11. During this process, the detection component 3 automatically detects the air flow rate passing through the filter net 2, thereby detecting the usage state of the filter net 2. The staff only needs to check the detection result of the detection component 3 to judge the usage state of the filter net 2, thereby improving the staff's usage experience.

[0046] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A smoke exhaust device for fire protection engineering, comprising a mounting frame (1), a fire protection pipe (11) interconnected with the mounting frame (1), and a filter (2) arranged at the end of the fire protection pipe (11), wherein: A plurality of mounting plates (21) are evenly spaced on the inner wall of the fire-fighting pipe (11); a conical plate (22) is provided on the side wall of the mounting plate (21) close to the filter screen (2); and a detection component (3) for detecting the blockage of the filter screen (2) is provided on the fire-fighting pipe (11).

2. A fire protection engineering smoke exhaust device according to claim 1, characterized in that: The detection assembly (3) comprises a baffle (31) fixed on the inner bottom wall of the fire-fighting pipe (11), a plurality of evenly distributed communication grooves (311) are formed on the side wall of the baffle (31), and the detection assembly (3) further comprises a plurality of rotating rods (32) rotatably arranged on the inner walls of the plurality of communication grooves (311) in sequence, a plurality of rotating plates (33) respectively fixed to the plurality of rotating rods (32), a plurality of first metal sheets (34) respectively fixed to the side walls of the plurality of rotating plates (33), and a plurality of first metal sheets (34) respectively fixed to the plurality of A second metal sheet (35) on the bottom surface of the mounting plate (21), a battery box (36) arranged on the side wall of the fire-fighting pipe (11), an indicator plate (37) fixed on the side wall of the fire-fighting pipe (11), and a plurality of warning lights (38) arranged on the indicator plate (37), the battery box (36) and the plurality of first metal sheets (34) are all electrically connected, the plurality of second metal sheets (35) and the plurality of warning lights (38) are all electrically connected, and the upper surface of the baffle plate (31) and the inner top wall of the fire-fighting pipe (11) are fixed to each other.

3. A fire protection engineering smoke exhaust device according to claim 2, characterized in that: A threaded groove (4) communicating with the inner cavity of the fire-fighting pipe (11) is provided on the side wall of the fire-fighting pipe (11); a threaded plate (41) is connected to the inner thread of the threaded groove (4); and the battery box (36) is arranged in the threaded plate (41).

4. A fire engineering smoke exhaust device according to claim 3, characterized in that: A sliding groove (5) is provided on the side wall of the threaded plate (41), a sliding block (51) is slidably arranged in the sliding groove (5), an annular groove (6) matching with the sliding block (51) is provided on the inner wall of the sliding groove (5), and the sliding block (51) and the battery box (36) are fixed to each other.

5. A fire protection engineering smoke exhaust device according to claim 4, characterized in that: A plurality of the second metal sheets (35) located on the same mounting plate (21) are connected in series.

6. A fire engineering smoke exhaust device according to claim 5, characterized in that: A plurality of the second metal sheets (35) located on the same mounting plate (21) are connected to the same warning light (38).

7. A fire protection engineering smoke exhaust device according to claim 6, characterized in that: A blocking plate (61) for blocking the rotating plate (33) is fixed on the inner bottom wall of each of the plurality of communicating grooves (311).

8. A fire protection engineering smoke exhaust device according to claim 7, characterized in that: A placement ring (7) is fixed on the side wall of the threaded plate (41) to reduce the difficulty for workers to rotate the threaded plate (41).

9. A fire protection engineering smoke exhaust device according to claim 8, characterized in that: A silicone sheet (8) is arranged on the side wall of the placement ring (7) close to the fire-fighting pipe (11).

10. A fire protection engineering smoke exhaust device according to claim 9, characterized in that: The rotating plate (33) is a rotating plate (33) made of polytetrafluoroethylene.

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