Smoke exhaust equipment for fire engineering

By designing a multi-stage filtration and cleaning mechanism, the problems of unsatisfactory filtration effect and clogging in existing smoke exhaust equipment are solved, achieving efficient flue gas treatment and equipment safety.

CN224080343UActive Publication Date: 2026-04-03GUANGDONG XINJIANG FIRE ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The existing smoke extraction equipment used in fire protection engineering has an unsatisfactory filtration effect, is prone to clogging, and may be damaged in emergency situations, posing a safety hazard.

Method used

A multi-stage filtration system is adopted, including a first filter plate and a second filter plate, combined with a spray device and a cleaning mechanism. The flue gas is filtered and cleaned multiple times through spraying from nozzles and cleaning by scrapers.

Benefits of technology

It improves the flue gas treatment effect, prevents filter plate clogging, ensures that the equipment can still operate normally in emergency situations, and reduces safety hazards.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of smoke exhaust equipment, and discloses smoke exhaust equipment for fire engineering, which comprises a treatment box, two ends of the treatment box are respectively and fixedly connected with a smoke inlet pipe and an exhaust pipe, exhaust fans are arranged in the smoke inlet pipe and the exhaust pipe, a fixed frame is fixedly connected in the treatment box, and a first filter plate is arranged in the fixed frame. A cleaning mechanism for the surface of the first filter plate is arranged in the treatment box, a water tank is fixedly connected to the bottom of the treatment box and communicates with the interior of the treatment box, and a filter mechanism is arranged in the water tank. According to the flue gas treatment device, dust in flue gas can be filtered through the arrangement of the first filter plate, meanwhile, the flue gas treatment effect can be improved in cooperation with spraying of the multiple sprayers, and the surface of the first filter plate can be cleaned conveniently through vertical sliding of the lifting plate and the scraper, so that the flue gas treatment effect is improved.
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Description

Technical Field

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

[0002] A search revealed a Chinese patent with authorization number CN220417541U, which discloses a smoke control and exhaust device for fire protection engineering, comprising: a housing, a smoke exhaust structure, and a purification structure. The smoke exhaust structure is installed on the left side of the housing, and the purification structure is installed inside the housing. The smoke exhaust structure includes a support frame, which is fixedly connected to the left side of the housing. A rotating shaft is fixedly connected to the outer wall of the connecting pipe, and the rotating shaft passes through the inner wall of the support base and is rotatably connected to it.

[0003] The smoke extraction equipment in the aforementioned patent has the following shortcomings: although it can filter the smoke during use, the filtration effect is not ideal, and it is prone to internal blockage after long-term use, which reduces the smoke extraction volume and thus affects the smoke extraction effect. Moreover, the fan may be damaged in an emergency, resulting in a safety hazard. Therefore, it is necessary to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a smoke exhaust device for fire protection engineering.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A smoke extraction device for fire protection engineering includes a treatment box. An inlet pipe and an exhaust pipe are fixedly connected to both ends of the treatment box. Exhaust fans are installed inside both the inlet and exhaust pipes. A fixed frame is fixedly connected inside the treatment box, and a first filter plate is installed inside the fixed frame. A cleaning mechanism for the surface of the first filter plate is provided inside the treatment box. A water tank is fixedly connected to the bottom of the treatment box and communicates with the interior of the treatment box. A filtration mechanism is installed inside the water tank. The first filter plate filters dust from the smoke. Combined with the spraying from multiple nozzles, the smoke extraction effect is improved. The sliding motion of a lifting plate and a scraper facilitates cleaning of the surface of the first filter plate, thereby enhancing the smoke extraction effect.

[0007] Preferably, a water pump is installed on the surface of the treatment box, and a suction pipe is fixedly connected to the input end of the water pump. One end of the suction pipe is inserted into the inside of the water tank, and the bottom end of the suction pipe is located at the bottom of the water tank. A connecting pipe is fixedly connected to the output end of the water pump, and the connecting pipe is inserted into the inside of the treatment box. A spray pipe is fixedly connected inside the treatment box. The spray pipe is horizontally arranged and located on the side of the first filter plate near the flue gas inlet pipe. The spray pipe is connected to the connecting pipe, and multiple nozzles are installed on the surface of the spray pipe for spraying the inside of the treatment box, thereby facilitating the agglomeration of larger particles in the flue gas and improving the treatment effect of the flue gas.

[0008] Furthermore, the cleaning mechanism includes a scraper. Two vertical rods are fixedly connected inside the treatment box, both positioned on the surface of the first filter plate near the smoke inlet pipe. A lifting plate is slidably connected inside the treatment box, the lifting plate being horizontally positioned and slidably fitted inside the two vertical rods. The scraper is installed on one side of the lifting plate and slidably connected to the surface of the first filter plate. A reciprocating screw is rotatably connected inside the treatment box, the reciprocating screw being vertically positioned and rotatably fitted inside the lifting plate. The lifting plate cooperates with the reciprocating screw, with its upper and lower ends respectively rotatably fitted inside the treatment box at the upward ends. A motor is installed on the top of the treatment box, the motor output fixedly connected to the top of the reciprocating screw to restrict the vertical sliding of the lifting plate while allowing the scraper to slide on the surface of the first filter plate, thereby cleaning the surface of the first filter plate.

[0009] Preferably, the filtration mechanism includes a second filter plate, a first connecting groove is provided at the bottom of the treatment box, a receiving box is located at one end of the surface of the water tank, the receiving box is disposed at the bottom of the first connecting groove, the first connecting groove is connected to the inside of the receiving box, a second connecting groove is provided between the receiving box and the water tank, a second filter plate is horizontally slidably connected inside the receiving box, the second filter plate is inserted through one end of the receiving box, a sealing plate is installed on one end of the surface of the second filter plate, and a handle is installed on the surface of the sealing plate, so that the water sprayed inside the treatment box can enter the receiving box through the first connecting groove, be filtered by the action of the second filter plate, and then flow back into the water tank, which facilitates the circulation and filtration of the water.

[0010] Furthermore, a level gauge is installed on the other side of the water tank surface, and a water inlet pipe is fixedly connected to the other side of the level gauge surface. A solenoid valve is installed on the surface of the water inlet pipe for detecting the water level inside the water tank and for replenishing the water tank in a timely manner.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. During use, the flue gas passes through the inside of the inlet pipe and the exhaust pipe, and at the same time, the flue gas is processed inside the treatment box. Then, the water pump needs to be driven, and the water source inside the water tank is sprayed out through the spray pipe and multiple nozzles through the suction pipe and connecting pipe. This can adsorb larger particles in the flue gas. Then, through the setting of the first filter plate, the flue gas can be filtered again, thereby improving the treatment effect of the flue gas.

[0013] 2. During use, the drive motor can rotate the reciprocating screw. With the cooperation of the lifting plate, the lifting plate and scraper will slide up and down, which can clean the dust attached to the surface of the first filter plate, prevent the first filter plate from clogging during use, and thus improve the treatment effect of the device on flue gas.

[0014] 3. The sprayed water will flow into the receiving box and water tank through the first connecting groove. The receiving box is equipped with a second filter plate, which will filter the wastewater after use. The filtered water will then flow back into the water tank for reuse. Attached Figure Description

[0015] Figure 1 This is a front view of a smoke exhaust device for fire protection engineering proposed in this utility model;

[0016] Figure 2 This is a sectional view of the surface structure of a smoke exhaust device for fire protection engineering proposed in this utility model;

[0017] Figure 3 This is a sectional view of the internal structure of the treatment box of a smoke exhaust device for fire protection engineering proposed in this utility model;

[0018] Figure 4 This is a cross-sectional view of the internal structure of the water tank of a smoke exhaust device for fire protection engineering proposed in this utility model.

[0019] In the diagram: 1. Processing box; 11. Smoke inlet pipe; 12. Exhaust pipe; 13. First connecting groove; 14. Fixing frame; 15. First filter plate; 16. Vertical rod; 2. Water tank; 21. Liquid level gauge; 22. Water inlet pipe; 23. Solenoid valve; 24. Receiver box; 25. Second connecting groove; 3. Water pump; 31. Suction pipe; 32. Connecting pipe; 33. Spray pipe; 34. Spray head; 4. Exhaust fan; 5. Lifting plate; 51. Scraper; 52. Reciprocating screw; 53. Motor; 6. Second filter plate; 61. Sealing plate; 62. Handle. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-4 A smoke exhaust device for fire protection engineering includes a treatment box 1. A smoke inlet pipe 11 and an exhaust pipe 12 are fixedly connected to both ends of the treatment box 1. Exhaust fans 4 are installed inside both the smoke inlet pipe 11 and the exhaust pipe 12. A fixed frame 14 is fixedly connected inside the treatment box 1. A first filter plate 15 is installed inside the fixed frame 14. A cleaning mechanism for the surface of the first filter plate 15 is provided inside the treatment box 1. A water tank 2 is fixedly connected to the bottom of the treatment box 1 and communicates with the interior of the treatment box 1. A filtration mechanism is provided inside the water tank 2. The first filter plate 15 filters dust from the smoke. Combined with the spraying of multiple nozzles 34, the smoke treatment effect is improved. The lifting plate 5 and scraper 51 slide up and down, facilitating the cleaning of the surface of the first filter plate 15, thereby improving the smoke treatment effect.

[0022] In this invention, a water pump 3 is installed on the surface of the treatment box 1. A suction pipe 31 is fixedly connected to the input end of the water pump 3. One end of the suction pipe 31 is inserted into the water tank 2, and the bottom end of the suction pipe 31 is located at the bottom of the water tank 2. A connecting pipe 32 is fixedly connected to the output end of the water pump 3. The connecting pipe 32 is inserted into the inside of the treatment box 1. A spray pipe 33 is fixedly connected inside the treatment box 1. The spray pipe 33 is horizontally arranged and is located on the side of the first filter plate 15 near the smoke inlet pipe 11. The spray pipe 33 is connected to the connecting pipe 32. Multiple nozzles 34 are installed on the surface of the spray pipe 33 for spraying the inside of the treatment box 1, thereby facilitating the fusion of larger particles in the flue gas and improving the treatment effect of the flue gas.

[0023] In this utility model, the cleaning mechanism includes a scraper 51. Two vertical rods 16 are vertically fixedly connected inside the treatment box 1, each rod being positioned on the surface of the first filter plate 15 near the smoke inlet pipe 11. A lifting plate 5 is vertically slidably connected inside the treatment box 1, the lifting plate 5 being horizontally positioned and slidably fitted inside the two vertical rods 16. The scraper 51 is installed on one side of the surface of the lifting plate 5 and slidably connected to the surface of the first filter plate 15. A reciprocating screw 52 is rotatably connected inside the treatment box 1, the reciprocating screw 52 being vertically positioned and rotatably fitted inside the lifting plate 5. The lifting plate 5 and the reciprocating screw 52 cooperate, with the upper and lower ends of the reciprocating screw 52 rotatably fitted inside the upper end of the treatment box 1, respectively. A motor 53 is installed on the top of the treatment box 1, the output end of which is fixedly connected to the top of the reciprocating screw 52 to restrict the vertical sliding of the lifting plate 5, while allowing the scraper 51 to slide on the surface of the first filter plate 15, thereby achieving a cleaning effect on the surface of the first filter plate 15.

[0024] In this utility model, the filtration mechanism includes a second filter plate 6. A first connecting groove 13 is provided at the bottom of the treatment box 1. A receiving box 24 is located at one end of the surface of the water tank 2. The receiving box 24 is located at the bottom of the first connecting groove 13 and is connected to the inside of the receiving box 24. A second connecting groove 25 is provided between the receiving box 24 and the water tank 2. The second filter plate 6 is horizontally slidably connected inside the receiving box 24. The second filter plate 6 is inserted through one end of the receiving box 24. A sealing plate 61 is installed on one end of the surface of the second filter plate 6. A handle 62 is installed on the surface of the sealing plate 61. The handle 62 is used to allow the water sprayed inside the treatment box 1 to enter the receiving box 24 through the first connecting groove 13, and then be filtered by the action of the second filter plate 6. After that, the water flows into the water tank 2, which facilitates the circulation and filtration of the water.

[0025] In this utility model, a level gauge 21 is installed on the other side of the surface of the water tank 2, and a water inlet pipe 22 is fixedly connected to the other side of the surface of the level gauge 21. A solenoid valve 23 is installed on the surface of the water inlet pipe 22 for detecting the water volume inside the water tank 2 and replenishing water inside the water tank 2 in a timely manner.

[0026] Working Principle: In actual use, the first filter plate 15 filters dust from the flue gas. Combined with the spraying from multiple nozzles 34, the treatment effect is improved. The sliding motion of the lifting plate 5 and scraper 51 facilitates cleaning of the surface of the first filter plate 15, further enhancing the flue gas treatment effect. During use, two exhaust fans 4 can be driven simultaneously, allowing the flue gas to pass through the inlet pipe 11 and exhaust pipe 12, and simultaneously pass through the treatment chamber 1 for processing. The two exhaust fans 4 can continue to operate even if one fails. Subsequently, the water pump 3 is driven, and water from the water tank 2 is sprayed through the spray pipe 33 and multiple nozzles 34 via the suction pipe 31 and connecting pipe 32, adsorbing larger particles in the flue gas before it passes through the first filter. The plate 15 is designed to filter the flue gas again. It can also drive the motor 53 to rotate the reciprocating screw 52. With the cooperation of the lifting plate 5, the lifting plate 5 and the scraper 51 will slide up and down, which can clean the dust attached to the surface of the first filter plate 15, thereby improving the treatment effect of the device on the flue gas. The sprayed water will flow into the receiving box 24 and the water tank 2 through the first connecting groove 13. The receiving box 24 is equipped with a second filter plate 6. Under the action of the second filter plate 6, the wastewater after use will be filtered. The filtered water will flow back into the water tank 2 for use. After each use, the second filter plate 6 needs to be replaced. Then, the level gauge 21 is set to detect the water level in the water tank 2. The water level is observed regularly and water is replenished in the water tank 2 through the water filling pipe 22 and the solenoid valve 23.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A smoke extraction device for fire engineering, comprising a treatment box (1), characterised in that, The processing box (1) is respectively fixedly connected with an inlet pipe (11) and an exhaust pipe (12) at both ends, the inlet pipe (11) and the exhaust pipe (12) are internally provided with exhaust fans (4), the processing box (1) is fixedly connected with a fixed frame (14) internally, the fixed frame (14) is internally provided with a first filter plate (15), the processing box (1) is provided with a cleaning mechanism on the surface of the first filter plate (15) internally, the bottom of the processing box (1) is fixedly connected with a water tank (2), the water tank (2) is communicated with the inside of the processing box (1), and the water tank (2) is internally provided with a filtering mechanism.

2. The smoke exhaust apparatus for fire engineering according to claim 1, characterized by The processing box (1) is provided with a water pump (3) on the surface, the input end of the water pump (3) is fixedly connected with a water suction pipe (31), one end of the water suction pipe (31) penetrates into the inside of the water tank (2), and the bottom end of the water suction pipe (31) is arranged on the bottom of the water tank (2); the output end of the water pump (3) is fixedly connected with a connecting pipe (32), and the connecting pipe (32) penetrates into the inside of the processing box (1).

3. The smoke exhaust apparatus for fire engineering according to claim 2, characterized by The processing box (1) is fixedly connected with a spray pipe (33) internally, the spray pipe (33) is horizontally arranged, the spray pipe (33) is arranged on the side, close to the inlet pipe (11), of the first filter plate (15), the spray pipe (33) is communicated with the connecting pipe (32), and a plurality of spray heads (34) are mounted on the surface of the spray pipe (33).

4. The smoke exhaust apparatus for fire engineering according to claim 1, characterized by The cleaning mechanism comprises a scraper (51), two vertical rods (16) are vertically and fixedly connected in the inside of the processing box (1), both of the vertical rods (16) are arranged on the surface of the first filter plate (15) and close to one end of the inlet pipe (11), and a lifting plate (5) is vertically and slidingly connected in the inside of the processing box (1); the lifting plate (5) is horizontally arranged and slidingly sleeved in the inside of the two vertical rods (16), and the scraper (51) is mounted on one side of the surface of the lifting plate (5).

5. The smoke exhaust apparatus for fire engineering according to claim 4, characterized by The scraper (51) is slidingly connected to the surface of the first filter plate (15), a reciprocating screw rod (52) is rotatably connected in the inside of the processing box (1), the reciprocating screw rod (52) is vertically arranged and rotatably sleeved in the inside of the lifting plate (5), the lifting plate (5) is matched with the reciprocating screw rod (52), and both ends of the reciprocating screw rod (52) are rotatably sleeved in the upward two ends of the inside of the processing box (1), a motor (53) is mounted on the top of the processing box (1), and the output end of the motor (53) is fixedly connected with the top end of the reciprocating screw rod (52).

6. The smoke exhaust apparatus for fire engineering according to claim 1, characterized by The filtering mechanism comprises a second filter plate (6), a first connecting groove (13) is formed in the bottom of the processing box (1), a receiving box (24) is arranged on one end of the surface of the water tank (2), the receiving box (24) is arranged on the bottom of the first connecting groove (13), the first connecting groove (13) is communicated with the inside of the receiving box (24), and a second connecting groove (25) is arranged between the receiving box (24) and the water tank (2).

7. The smoke exhaust apparatus for fire engineering according to claim 6, characterized by The second filter plate (6) is connected to the receiving box (24) horizontally and slidably, is inserted into one end of the receiving box (24), and is provided with a sealing plate (61) on one end of the surface.

8. The smoke exhaust apparatus for fire engineering according to claim 1, characterized by The water tank (2) is provided with a liquid level instrument (21) on the other side of the surface, and the liquid level instrument (21) is fixedly connected with a water adding pipe (22) on the other side of the surface.

Citation Information

Patent Citations

  • Smoke prevention and exhaust equipment for fire engineering

    CN220417541U