CN221120487U - Axial-flow type fire-fighting smoke exhaust fan based on heat exchange and radiation - Google Patents

Abstract

The utility model provides an axial-flow type fire-fighting smoke exhaust fan based on heat exchange and heat dissipation, which comprises a smoke exhaust fan, an air inlet pipe, a worm wheel, a wiping component, an expansion pipe, a filter screen and a surrounding mechanism, wherein the outer surface of the smoke exhaust fan is provided with a mounting plate, the power of the air inlet pipe is derived from the smoke exhaust fan, the worm wheel is fixedly sleeved on the outer circular surface of the air inlet pipe, the expansion pipe is fixedly arranged on the air inlet pipe, and the wiping component is arranged on the outer sides of the air inlet pipe and the expansion pipe. According to the scheme, the planetary plate is driven to revolve around the worm wheel in a mode of enabling the worm to rotate and meshed with the worm wheel teeth, the scraping plate is driven to rotate through the planetary plate, and the fluff of the scraping plate is utilized to wipe the surface of the filter screen, so that the filter screen is prevented from being blocked by blocked dust, and the smoke discharging effect of the smoke exhaust fan is guaranteed.

Description

Axial-flow type fire-fighting smoke exhaust fan based on heat exchange and radiation

Technical Field

The utility model relates to the technical field of fire-fighting smoke exhaust fans, in particular to an axial flow type fire-fighting smoke exhaust fan based on heat exchange and radiation.

Background

The axial flow fan is a fan commonly used in industrial and mining enterprises, is applied to fire protection, smoke exhaust and ventilation in subways, tunnels, gymnasiums, underground markets, workshops and the like, and is an industrial fan which can continuously run at a high temperature of 300 ℃ for more than 60 minutes and is not damaged at a temperature of 100 ℃ for 20 hours/time, and when a fire disaster occurs in an application occasion, high-temperature dense smoke is discharged outdoors through the smoke exhaust fan.

However, some dust is inevitably attached to the existing axial-flow type fire-fighting smoke exhaust fan in the use process, and the smoke exhaust efficiency in the accident occurrence can be affected once the air inlet is blocked by the dust, so that the accident occurrence is difficult to control.

Disclosure of utility model

(One) solving the technical problems

Aiming at the defects of the prior art, the utility model provides an axial flow type fire-fighting smoke exhaust fan based on heat exchange and heat dissipation, which solves the problems in the prior art.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides an axial-flow type fire control exhaust fan based on heat exchange heat dissipation, includes exhaust fan, air-supply line, worm wheel, cleans subassembly, expansion pipe, filter screen and encircles the mechanism, exhaust fan surface is equipped with the mounting panel, the air-supply line power derives from exhaust fan, the fixed cover of worm wheel is located the outer disc of air-supply line, the expansion pipe is fixed to be located on the air-supply line, clean the subassembly and locate the air-supply line and the expansion pipe outside, the filter screen is fixed to be located in the expansion pipe, the filter screen is used for the separation dust to pass through the expansion pipe gets into in the air-supply line, encircle the mechanism and locate the planet board with between the air-supply line, encircle the mechanism and be used for the drive the subassembly is cleaned around the worm wheel removes.

Preferably, the dust diameter is less than 2 μm.

Preferably, the wiping component comprises a planet plate and a scraping plate, the planet plate is arranged on the outer side of the air inlet pipe, the scraping plate is fixedly arranged on one end, axially far away from the smoke exhaust fan, of the planet plate, and a fluff surface is arranged on the end face, close to one side of the filter screen, of the scraping plate.

Preferably, the encircling mechanism comprises a fixed support, a motor and a worm, wherein the fixed support is fixedly arranged on one side of the planet plate, which is close to the worm wheel, the motor is fixedly arranged on the fixed support, the worm is arranged on the inner side of the fixed support, the motor is used for driving the worm to rotate, and the worm is meshed with the worm wheel.

Preferably, a limiting slide way is arranged in the expansion pipe, a limiting slide way communicated with the limiting slide way is arranged in the expansion pipe, and a connecting piece is arranged between the planetary plate and the expansion pipe.

Preferably, the connecting piece includes connecting rod and connection slider, the connecting rod is fixed to be located the planet board is close to expansion pipe one side, the connecting rod is located slide in the spacing spout, the connecting rod extends to in the spacing slide, the connection slider is fixed to be located the connecting rod is located one end in the spacing spout.

(III) beneficial effects

The utility model provides an axial flow type fire-fighting smoke exhaust fan based on heat exchange and radiation. The beneficial effects are as follows:

1. According to the scheme, the planetary plate is driven to revolve around the worm wheel in a mode of enabling the worm to rotate and meshed with the worm wheel teeth, the scraping plate is driven to rotate through the planetary plate, and the fluff of the scraping plate is utilized to wipe the surface of the filter screen, so that the filter screen is prevented from being blocked by blocked dust, and the smoke discharging effect of the smoke exhaust fan is guaranteed.

Drawings

FIG. 1 is a schematic diagram of a front view of the present utility model;

FIG. 2 is a schematic diagram of an explosive structure according to the present utility model;

Fig. 3 is a schematic axial sectional view of the present utility model.

In the figure: 11. a smoke exhaust fan; 12. a mounting plate; 13. an air inlet pipe; 14. a worm wheel; 15. a planetary plate; 16. a scraper; 17. expanding the tube; 18. a filter screen; 19. limiting slide ways; 20. limiting sliding grooves; 21. a connecting rod; 22. the connecting slide block; 25. a fixed bracket; 26. a motor; 27. a worm.

Detailed Description

The embodiment of the utility model provides an axial-flow type fire-fighting smoke exhaust fan based on heat exchange and heat dissipation, which is shown in fig. 1-3, and comprises a smoke exhaust fan 11, an air inlet pipe 13, a worm wheel 14, a wiping component, an expansion pipe 17, a filter screen 18 and a surrounding mechanism, wherein the smoke exhaust fan 11 is electrically connected with an existing fire early warning device, a mounting plate 12 is arranged on the outer surface of the smoke exhaust fan 11, a worker installs the smoke exhaust fan 11 through the mounting plate 12, the power of the air inlet pipe 13 is derived from the smoke exhaust fan 11, the worm wheel 14 is fixedly sleeved on the outer circumferential surface of the air inlet pipe 13, the expansion pipe 17 is fixedly arranged on the air inlet pipe 13, the wiping component is arranged on the outer sides of the air inlet pipe 13 and the expansion pipe 17, the filter screen 18 is fixedly arranged in the expansion pipe 17, the filter screen 18 is used for blocking dust from entering the air inlet pipe 13 through the expansion pipe 17, the surrounding mechanism is arranged between a planetary plate 15 and the air inlet pipe 13, and the surrounding mechanism is used for driving the wiping component to move around the worm wheel 14.

The filter screen 18 can prevent dust with the diameter larger than 2 mu m from entering the air inlet pipe 13 through the expansion pipe 17, so that the dust is attached to the impeller in the smoke exhaust fan 11, and the working efficiency of the impeller is affected.

As shown in fig. 2, the wiping component comprises a planet plate 15 and a scraping plate 16, the planet plate 15 is arranged on the outer side of the air inlet pipe 13, the scraping plate 16 is fixedly arranged at one end of the planet plate 15, which is axially far away from the smoke exhaust fan 11, the end face of one side of the scraping plate 16, which is close to the filter screen 18, is provided with a fluff surface, when the planet plate 15 revolves around the air inlet pipe 13, the planet plate 15 drives the scraping plate 16 to synchronously rotate, and the scraping plate 16 wipes the surface of the filter screen 18 through the fluff surface, so that blocked dust is prevented from blocking the filter screen 18.

The encircling mechanism comprises a fixed support 25, a motor 26 and a worm 27, wherein the fixed support 25 is fixedly arranged on one side of the planet plate 15 close to the worm wheel 14, the motor 26 is fixedly arranged on the fixed support 25, the worm 27 is arranged on the inner side of the fixed support 25, the motor 26 is used for driving the worm 27 to rotate, and the worm 27 is meshed with the worm wheel 14.

As shown in fig. 3, a limiting slide way 19 is arranged in the expansion pipe 17, a limiting slide way 20 communicated with the limiting slide way 19 is arranged in the expansion pipe 17, a connecting piece is arranged between the planetary plate 15 and the expansion pipe 17 and comprises a connecting rod 21 and a connecting slide block 22, the connecting rod 21 is fixedly arranged on one side of the planetary plate 15 close to the expansion pipe 17, the connecting rod 21 is positioned in the limiting slide way 20 and slides, the connecting rod 21 extends into the limiting slide way 19, and the connecting slide block 22 is fixedly arranged at one end of the connecting rod 21 positioned in the limiting slide way 20.

In the revolution process of the planetary plate 15 around the air inlet pipe 13, the planetary plate 15 drives the connecting slide block 22 to synchronously rotate through the connecting rod 21, the connecting rod 21 drives the connecting slide block 22 to slide in the limiting slide way 19, and in the revolution process, the connecting rod 21 slides in the limiting slide way 20.

When the smoke exhaust fan 11 is started, the impeller in the smoke exhaust fan 11 is started, gas axially enters from the air inlet pipe 13, is pushed by blades on the impeller to enable the energy of the gas to rise, then flows into the guide vane, the guide vane changes deflection airflow into axial flow, meanwhile, the gas is led into the diffuser pipe, further kinetic energy of the gas is converted into pressure energy, and finally, the pressure energy is led into the working pipeline, meanwhile, the motor 26 is started, the motor 26 drives the worm 27 to rotate through the output shaft, the worm 27 drives the planetary plate 15 to revolve around the worm wheel 14 through meshing with the teeth of the worm wheel 14, and the surface of the filter screen 18 is wiped by utilizing fluff of the scraper 16, so that blocked dust is prevented from blocking the filter screen 18, and the smoke exhaust effect of the smoke exhaust fan is ensured.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. An axial-flow type fire control smoke exhaust fan based on heat exchange heat dissipation, its characterized in that: including exhaust fan (11), air-supply line (13), worm wheel (14), wiping subassembly, expansion pipe (17), filter screen (18) and encircling the mechanism, exhaust fan (11) surface is equipped with mounting panel (12), air-supply line (13) power is received from exhaust fan (11), worm wheel (14) are fixed to be overlapped and are located air-supply line (13) outer disc, expansion pipe (17) are fixed to be located on air-supply line (13), wiping subassembly is located air-supply line (13) and expansion pipe (17) outside, filter screen (18) are fixed to be located in expansion pipe (17), filter screen (18) are used for the separation dust to get into through in expansion pipe (17), encircle the mechanism and locate planetary plate (15) with between air-supply line (13), encircle the mechanism and be used for the drive wiping subassembly is around (14) move.

2. The heat exchange and radiation based axial flow type fire smoke exhaust fan as defined in claim 1, wherein: the cleaning component comprises a planet plate (15) and a scraping plate (16), the planet plate (15) is arranged on the outer side of the air inlet pipe (13), the scraping plate (16) is fixedly arranged on one end, far away from the smoke exhaust fan (11) in the axial direction, of the planet plate (15), and a fluff surface is arranged on the end face, close to one side of the filter screen (18), of the scraping plate (16).

3. The heat exchange and radiation based axial flow type fire smoke exhaust fan as defined in claim 1, wherein: the surrounding mechanism comprises a fixing support (25), a motor (26) and a worm (27), wherein the fixing support (25) is fixedly arranged on one side of the planet plate (15) close to the worm wheel (14), the motor (26) is fixedly arranged on the fixing support (25), the worm (27) is arranged on the inner side of the fixing support (25), the motor (26) is used for driving the worm (27) to rotate, and the worm (27) is meshed with the worm wheel (14).

4. The heat exchange and radiation based axial flow type fire smoke exhaust fan as defined in claim 1, wherein: the expansion pipe (17) is internally provided with a limiting slide way (19), the expansion pipe (17) is internally provided with a limiting slide way (20) communicated with the limiting slide way (19), and a connecting piece is arranged between the planetary plate (15) and the expansion pipe (17).

5. The heat exchange and radiation based axial flow type fire smoke exhaust fan as defined in claim 4, wherein: the connecting piece comprises a connecting rod (21) and a connecting sliding block (22), wherein the connecting rod (21) is fixedly arranged on one side of the planet plate (15) close to the expansion pipe (17), the connecting rod (21) is positioned in the limiting sliding groove (20) and slides, the connecting rod (21) extends into the limiting sliding groove (19), and the connecting sliding block (22) is fixedly arranged on one end of the connecting rod (21) in the limiting sliding groove (20).