Centrifugal fire smoke exhaust fan

Abstract

This application relates to a centrifugal fire-fighting smoke exhaust fan, belonging to the technical field of fire-fighting smoke exhaust equipment. It includes a base, a filter assembly, and a drive assembly. The base is horizontally positioned, with a housing fixedly mounted on it. A controller and a temperature sensor are also fixedly mounted on the base and electrically connected to the controller. One side of the housing has an air inlet channel, and the side away from the air inlet channel has an air outlet channel. A rotating shaft is inserted into the housing, and an impeller is fixedly mounted on the rotating shaft, located inside the housing. The filter assembly is located at the air inlet channel and is used to filter the air entering the housing. The filter assembly includes a filter plate, which is positioned at the air inlet channel. The drive assembly is located on the base and is used to drive the rotating shaft to rotate. This application has the effect of making it difficult for impurities to flow into the equipment with the airflow.

Description

Technical Field

[0001] This application relates to the technical field of fire smoke exhaust equipment, and in particular to a centrifugal fire smoke exhaust fan. Background Technology

[0002] Centrifugal fire exhaust fans are a type of specialized fire-fighting equipment used in ventilation and fire exhaust systems. They are mainly used in buildings such as factories, mines, tunnels, and shopping malls.

[0003] Currently, existing centrifugal fire smoke exhaust fans typically include a casing, impeller, drive motor, inlet duct, outlet duct, and temperature monitoring module. In use, the operator starts the drive motor to drive the impeller to rotate at high speed. The centrifugal force of the impeller draws air containing smoke and dust into the casing through the inlet duct and then exhausts it to the outside through the outlet duct. The temperature monitoring module monitors the airflow temperature inside the casing in real time to prevent high temperature damage to the equipment.

[0004] When existing centrifugal fire exhaust fans are in use, dust and construction debris can easily flow into the casing with the airflow. These impurities will adhere to the impeller, affecting the normal use of the equipment. Utility Model Content

[0005] In order to prevent impurities from flowing into the equipment with the airflow, this application provides a centrifugal fire smoke exhaust fan.

[0006] This application provides a centrifugal fire-fighting smoke exhaust fan, which adopts the following technical solution: A centrifugal fire-fighting smoke exhaust fan includes a base, a filter assembly, and a drive assembly. The base is horizontally positioned, and a housing is fixedly mounted on the base. A controller and a temperature sensor are also fixedly mounted on the base and electrically connected to the controller. One side of the housing has an air inlet channel, and the side of the housing away from the air inlet channel has an air outlet channel. A rotating shaft is inserted into the housing, and an impeller is fixedly mounted on the rotating shaft, located inside the housing. The filter assembly is located at the air inlet channel and is used to filter the air entering the housing. The filter assembly includes a filter plate, which is located at the air inlet channel. The drive assembly is located on the base and is used to drive the rotating shaft to rotate.

[0007] By adopting the above technical solution, during normal ventilation, the controller controls the drive component to work, the drive component drives the rotating shaft to rotate, the rotating shaft drives the impeller to rotate, and the rotation of the impeller generates negative pressure suction, which draws the airflow containing smoke and dust from the outside into the box through the air inlet channel. During the process of the airflow entering the box, the filter plate at the air inlet channel intercepts impurities such as dust and construction debris in the airflow, making it difficult for impurities to enter the box with the airflow.

[0008] Optionally, the filter assembly further includes a rotating motor; the filter plate is rotatably connected to the air inlet channel; the rotating motor is mounted on the air inlet channel and electrically connected to the controller, and the output shaft of the rotating motor is fixedly connected to the rotating shaft of the filter plate.

[0009] By adopting the above technical solution, when a fire occurs, the temperature sensor detects that the ambient temperature is rising continuously. The controller drives the rotating motor to work, and the output shaft of the rotating motor drives the filter plate to rotate. The filter plate stops filtering impurities in the airflow, making it easier for smoke at the fire scene to be quickly discharged through the air intake channel.

[0010] Optionally, the drive assembly includes a drive motor, a first pulley, a second pulley, and a belt; the drive motor is mounted on the base and electrically connected to the controller; the first pulley is fixedly mounted on the output shaft of the drive motor; the second pulley is fixedly mounted on the rotating shaft and located on one side of the housing; the belt is wound around the first pulley and the second pulley.

[0011] By adopting the above technical solution, when in use, the controller drives the drive motor to work, the drive motor drives the first pulley to rotate, the first pulley drives the second pulley to rotate through the friction of the belt, the second pulley drives the impeller to rotate, the rotation of the impeller generates negative pressure suction, which makes it easy for the airflow containing smoke and dust to be drawn into the box from the air inlet channel.

[0012] Optionally, the drive assembly further includes a protective housing; the protective housing is fixedly disposed on one side of the housing, and the first pulley, the second pulley and the belt are all located inside the protective housing.

[0013] By adopting the above technical solution, when in use, the protective shell isolates the first pulley, the second pulley, and the belt from the external environment, making it difficult for debris to get into the drive assembly and thus making the belt less likely to jam.

[0014] Optionally, an adjustment component is provided on the air outlet duct, which is used to adjust the air volume of the air outlet duct.

[0015] By adopting the above technical solution, during use, the operator can adjust the air volume of the air outlet channel by adjusting the adjustment component, making the air volume of the air outlet channel easy to adjust.

[0016] Optionally, the adjustment assembly includes a mounting bracket, a protective box, an adjustment unit, and a drive unit; the mounting bracket is vertically arranged on the side of the air outlet channel away from the box and is fixedly connected to the air outlet channel; the protective box is fixedly arranged on the mounting bracket; the adjustment unit is located on the mounting bracket and is used to adjust the air volume of the air outlet channel; the drive unit is located inside the protective box and is used to drive the adjustment unit to work.

[0017] By adopting the above technical solution, when it is necessary to adjust the air volume of the air outlet duct, the drive unit drives the adjustment unit to work, and the adjustment unit adjusts the effective ventilation area of ​​the air outlet duct, reducing or increasing the ventilation cross section of the air outlet duct, thereby realizing the adjustment of the air volume of the air outlet duct.

[0018] Optionally, the adjusting part includes an adjusting plate and an adjusting shaft; the adjusting plate is vertically arranged in the mounting frame; the adjusting shaft is fixedly arranged on the adjusting plate and inserted into the mounting frame, with one end of the adjusting shaft inserted into the protective box; multiple adjusting plates and adjusting shafts are spaced apart along the length direction of the mounting frame.

[0019] By adopting the above technical solution, when it is necessary to adjust the air volume of the air outlet duct, the drive unit drives multiple adjustment shafts to rotate, and the adjustment shafts drive the adjustment plate to rotate synchronously, thereby changing the ventilation area of ​​the air outlet duct, making it easier to adjust the air volume of the air outlet duct.

[0020] Optionally, the drive unit includes an electric telescopic rod, a driven gear, and a drive rack; the electric telescopic rod is horizontally disposed inside the protective box, and its fixed end is fixedly connected to the protective box; the electric telescopic rod is electrically connected to the controller; the driven gear is horizontally disposed inside the protective box, and there are multiple driven gears, each corresponding to one of the multiple adjusting shafts; the driven gear is fixedly connected to the adjusting shaft; the drive rack is horizontally disposed inside the protective box and fixedly connected to the movable end of the electric telescopic rod; the drive rack is meshed with all of the multiple driven gears.

[0021] By adopting the above technical solution, when the air volume of the air outlet channel needs to be adjusted, the operator controls the extension and retraction of the movable end of the electric telescopic rod through the controller. The movable end of the electric telescopic rod drives the drive rack to slide synchronously, the drive rack drives the driven gear to rotate, and the driven gear drives the adjustment shaft to rotate synchronously, making the angle of the adjustment plate easy to adjust, thereby making the air volume of the air outlet channel easy to adjust.

[0022] In summary, this application includes at least one of the following beneficial technical effects: By installing a filter plate, impurities are less likely to enter the equipment. By setting up adjustment components, the air volume of the air outlet duct can be easily adjusted. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a cross-sectional view of an embodiment of this application; Figure 3 This is a cross-sectional view of the impeller, as shown in this embodiment of the application.

[0024] Explanation of reference numerals in the attached figures: 1. Base; 11. Housing; 111. Air inlet channel; 112. Air outlet channel; 113. Rotating shaft; 1131. Impeller; 12. Controller; 13. Temperature sensor; 2. Filter assembly; 21. Filter plate; 22. Rotating motor; 3. Drive assembly; 31. Drive motor; 32. First pulley; 33. Second pulley; 34. Belt; 35. Protective shell; 4. Adjustment assembly; 41. Mounting bracket; 42. Protective box; 43. Adjustment part; 431. Adjustment plate; 432. Adjustment shaft; 44. Drive part; 441. Electric telescopic rod; 442. Driven gear; 443. Drive rack. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0026] This application discloses a centrifugal fire-fighting smoke exhaust fan. (Refer to...) Figure 1 , Figure 2 and Figure 3 The centrifugal fire exhaust fan includes a base 1, a filter assembly 2, a drive assembly 3, and an adjustment assembly 4. The base 1 is horizontally positioned and is rectangular in shape. A housing 11, also rectangular in shape, is fixedly mounted on the base 1. One side of the housing 11 is connected to an air inlet channel 111, and the side of the housing 11 away from the air inlet channel 111 is connected to an air outlet channel 112. A rotating shaft 113 is inserted into the housing 11, and an impeller 1131 is fixedly mounted on the rotating shaft 113. The filter assembly 2 is located at the air inlet channel 111 and is used to filter the air entering the housing 11. The drive assembly 3 is located on the base 1 and is used to drive the rotating shaft 113 to rotate. The adjustment assembly 4 is located at the air outlet channel 112 and is used to adjust the airflow of the air outlet channel 112.

[0027] In use, the operator drives the drive assembly 3 to work, the drive assembly 3 drives the rotating shaft 113 to rotate, the rotating shaft 113 drives the impeller 1131 to rotate, the rotation of the impeller 1131 generates negative pressure suction, and draws the airflow containing smoke and dust from the outside into the housing 11 through the air inlet channel 111. The adjustment assembly 4 adjusts the air volume of the air outlet channel 112.

[0028] Reference Figure 2 and Figure 3 The rotating shaft 113 is horizontally arranged and is in the shape of a circular rod. The rotating shaft 113 is rotatably connected to the housing 11. The impeller 1131 is vertically arranged and located inside the housing 11.

[0029] Reference Figure 1 A controller 12 is fixedly installed on the base 1, and a temperature sensor 13 is fixedly installed on the base 1. The temperature sensor 13 is located on one side of the controller 12 and is electrically connected to the controller 12.

[0030] The filter assembly 2 includes a filter plate 21 and a rotating motor 22. The filter plate 21 is vertically installed at the air inlet channel 111 and is rectangular in shape. The filter plate 21 has multiple filter holes and is rotatably connected to the air inlet channel 111. The rotating motor 22 is horizontally installed on one side of the air inlet channel 111, and its output shaft is fixedly connected to the rotation shaft 113 of the filter plate 21. The rotating motor 22 is electrically connected to the controller 12.

[0031] Reference Figure 1 and Figure 2 The drive assembly 3 includes a drive motor 31, a first pulley 32, a second pulley 33, a belt 34, and a protective housing 35. The drive motor 31 is horizontally mounted on the base 1 and electrically connected to the controller 12. The first pulley 32 is vertically sleeved on the output shaft of the drive motor 31 and fixedly connected to it. The second pulley 33 is vertically sleeved on the rotating shaft 113 and fixedly connected to it, and is located on one side of the housing 11. The belt 34 is wound around the first pulley 32 and the second pulley 33. The protective housing 35 is vertically disposed on one side of the housing 11 and fixedly connected to it. The first pulley 32, the second pulley 33, and the belt 34 are all located inside the protective housing 35. The rotating shaft 113 is rotatably connected to the protective housing 35, and the output shaft of the drive motor 31 is rotatably connected to the protective housing 35.

[0032] During operation, temperature sensor 13 monitors the ambient temperature and transmits the temperature data to controller 12. Controller 12 controls drive motor 31 to operate, which in turn drives first pulley 32 to rotate. First pulley 32, through the friction of belt 34, drives second pulley 33 to rotate, which in turn drives impeller 1131 to rotate. The rotation of impeller 1131 generates negative pressure suction, drawing air containing smoke and dust from the outside into the housing 11 through air inlet duct 111. During the airflow entering the housing 11, filter plate 21 at air inlet duct 111 intercepts dust, construction debris, and other impurities in the airflow.

[0033] When a fire occurs, the temperature sensor 13 detects that the ambient temperature is rising continuously. The controller 12 drives the rotary motor 22 to work. The output shaft of the rotary motor 22 drives the filter plate 21 to rotate. The filter plate 21 stops filtering impurities in the airflow, and the smoke at the fire scene is quickly discharged through the air intake channel 111.

[0034] Reference Figure 1 , Figure 2 and Figure 3 The adjustment assembly 4 includes a mounting bracket 41, a protective housing 42, an adjustment unit 43, and a drive unit 44. The mounting bracket 41 is vertically positioned on the side of the air outlet duct 112 away from the housing 11 and is rectangular in shape; the mounting bracket 41 is fixedly connected to the air outlet duct 112. The protective housing 42 is horizontally positioned on the mounting bracket 41 and is rectangular in shape; the protective housing 42 is fixedly connected to the mounting bracket 41. The adjustment unit 43 is located on the mounting bracket 41 and is used to adjust the airflow of the air outlet duct 112; the drive unit 44 is located inside the protective housing 42 and is used to drive the adjustment unit 43.

[0035] Reference Figure 2 and Figure 3 The adjusting part 43 includes an adjusting plate 431 and an adjusting shaft 432. The adjusting plate 431 is vertically arranged inside the mounting frame 41 and is rectangular in shape. The adjusting shaft 432 is vertically arranged at the top of the adjusting plate 431 and is circular in shape. The adjusting shaft 432 is fixedly connected to the adjusting plate 431, passes through the mounting frame 41, and has one end inserted into the protective box 42. Multiple adjusting plates 431 and adjusting shafts 432 are spaced apart along the length of the mounting frame 41.

[0036] Reference Figure 3 The drive unit 44 includes an electric telescopic rod 441, a driven gear 442, and a drive rack 443. The electric telescopic rod 441 is horizontally disposed within the protective housing 42, with its fixed end fixedly connected to the protective housing 42. The electric telescopic rod 441 is electrically connected to the controller 12. Multiple driven gears 442 are horizontally disposed within the protective housing 42, spaced apart along the length of the protective housing 42, and each corresponds one-to-one with a plurality of adjusting shafts 432. The driven gears 442 are fixedly connected to the adjusting shafts 432. The drive rack 443 is horizontally disposed within the protective housing 42 and fixedly connected to the movable end of the electric telescopic rod 441. The drive rack 443 is meshed with all of the multiple driven gears 442.

[0037] When it is necessary to adjust the air volume of the air outlet duct 112, the operator controls the extension and retraction of the movable end of the electric telescopic rod 441 through the controller 12. The movable end of the electric telescopic rod 441 drives the drive rack 443 to slide synchronously. The drive rack 443 drives the driven gear 442 to rotate. The driven gear 442 drives the adjusting shaft 432 to rotate. The adjusting shaft 432 drives the adjusting plate 431 to rotate synchronously.

[0038] The implementation principle of a centrifugal fire-fighting smoke exhaust fan in this embodiment is as follows: During normal ventilation, the controller 12 controls the drive motor 31 to work. The drive motor 31 drives the first pulley 32 to rotate. The first pulley 32 drives the second pulley 33 to rotate through the friction of the belt 34. The second pulley 33 drives the impeller 1131 to rotate. The rotation of the impeller 1131 generates negative pressure suction, and the impeller 1131 draws the airflow containing smoke and dust from the outside into the housing 11 through the air inlet channel 111. During the process of the airflow entering the housing 11, the filter plate 21 at the air inlet channel 111 intercepts impurities such as dust and construction debris in the airflow.

[0039] When it is necessary to adjust the air volume of the air outlet duct 112, the operator controls the extension and retraction of the movable end of the electric telescopic rod 441 through the controller 12. The movable end of the electric telescopic rod 441 drives the drive rack 443 to slide synchronously. The drive rack 443 drives the driven gear 442 to rotate. The driven gear 442 drives the adjusting shaft 432 to rotate. The adjusting shaft 432 drives the adjusting plate 431 to rotate synchronously.

[0040] When a fire occurs, the temperature sensor 13 detects that the ambient temperature is rising continuously. The controller 12 drives the rotary motor 22 to work. The output shaft of the rotary motor 22 drives the filter plate 21 to rotate. The filter plate 21 stops filtering impurities in the airflow, and the smoke at the fire scene is quickly discharged through the air intake channel 111.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A centrifugal fire-fighting smoke exhaust fan, characterized in that: It includes a base (1), a filter assembly (2), and a drive assembly (3); the base (1) is horizontally positioned, a housing (11) is fixedly mounted on the base (1), a controller (12) is fixedly mounted on the base (1), and a temperature sensor (13) is fixedly mounted on the base (1), the temperature sensor (13) being electrically connected to the controller (12); one side of the housing (11) is connected to an air inlet channel (111), and the side of the housing (11) away from the air inlet channel (111) is connected to an air outlet channel (112); the housing... (11) A rotating shaft (113) is inserted on the rotating shaft (113), and an impeller (1131) is fixedly installed on the rotating shaft (113). The impeller (1131) is located inside the housing (11). The filter assembly (2) is located at the air inlet channel (111) and is used to filter the air entering the housing (11). The filter assembly (2) includes a filter plate (21). The filter plate (21) is installed at the air inlet channel (111). The drive assembly (3) is located on the base (1) and is used to drive the rotating shaft (113) to rotate.

2. The centrifugal fire-fighting smoke exhaust fan according to claim 1, characterized in that: The filter assembly (2) also includes a rotating motor (22); the filter plate (21) is rotatably connected to the air inlet channel (111); the rotating motor (22) is installed on the air inlet channel (111) and electrically connected to the controller (12); the output shaft of the rotating motor (22) is fixedly connected to the rotating shaft (113) of the filter plate (21).

3. The centrifugal fire-fighting smoke exhaust fan according to claim 1, characterized in that: The drive assembly (3) includes a drive motor (31), a first pulley (32), a second pulley (33), and a belt (34); the drive motor (31) is mounted on the base (1) and electrically connected to the controller (12); the first pulley (32) is fixedly mounted on the output shaft of the drive motor (31); the second pulley (33) is fixedly mounted on the rotating shaft (113) and located on one side of the housing (11); the belt (34) is wound around the first pulley (32) and the second pulley (33).

4. The centrifugal fire-fighting smoke exhaust fan according to claim 3, characterized in that: The drive assembly (3) also includes a protective shell (35); the protective shell (35) is fixedly disposed on one side of the housing (11), and the first pulley (32), the second pulley (33) and the belt (34) are all located inside the protective shell (35).

5. The centrifugal fire-fighting smoke exhaust fan according to claim 1, characterized in that: An adjustment component (4) is provided on the air outlet channel (112), and the adjustment component (4) is used to adjust the air volume of the air outlet channel (112).

6. The centrifugal fire-fighting smoke exhaust fan according to claim 5, characterized in that: The adjustment assembly (4) includes a mounting bracket (41), a protective box (42), an adjustment part (43), and a drive part (44); the mounting bracket (41) is vertically arranged on the side of the air outlet channel (112) away from the box (11) and is fixedly connected to the air outlet channel (112); the protective box (42) is fixedly arranged on the mounting bracket (41); the adjustment part (43) is located on the mounting bracket (41) and is used to adjust the air volume of the air outlet channel (112); the drive part (44) is located inside the protective box (42) and is used to drive the adjustment part (43) to work.

7. The centrifugal fire-fighting smoke exhaust fan according to claim 6, characterized in that: The adjustment part (43) includes an adjustment plate (431) and an adjustment shaft (432); the adjustment plate (431) is vertically arranged in the mounting frame (41); the adjustment shaft (432) is fixedly arranged on the adjustment plate (431) and inserted into the mounting frame (41), and one end of the adjustment shaft (432) is inserted into the protective box (42); multiple adjustment plates (431) and adjustment shafts (432) are spaced apart along the length direction of the mounting frame (41).

8. The centrifugal fire-fighting smoke exhaust fan according to claim 7, characterized in that: The drive unit (44) includes an electric telescopic rod (441), a driven gear (442), and a drive rack (443). The electric telescopic rod (441) is horizontally arranged inside the protective box (42), and its fixed end is fixedly connected to the protective box (42). The electric telescopic rod (441) is electrically connected to the controller (12). The driven gear (442) is horizontally arranged inside the protective box (42). There are multiple driven gears (442), and each corresponds to one of the multiple adjusting shafts (432). The driven gear (442) is fixedly connected to the adjusting shaft (432). The drive rack (443) is horizontally arranged inside the protective box (42) and is fixedly connected to the movable end of the electric telescopic rod (441). The drive rack (443) is meshed with multiple driven gears (442).

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