CN213270346U - Axial-flow type fire-fighting smoke exhaust fan - Google Patents
Axial-flow type fire-fighting smoke exhaust fan Download PDFInfo
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- CN213270346U CN213270346U CN202021770828.2U CN202021770828U CN213270346U CN 213270346 U CN213270346 U CN 213270346U CN 202021770828 U CN202021770828 U CN 202021770828U CN 213270346 U CN213270346 U CN 213270346U
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Abstract
The axial-flow type fire-fighting smoke exhaust fan comprises a shell, a middle cylinder and a motor, wherein the middle cylinder is fixed in the shell through a supporting seat; the motor transmission end is connected with a hub, and the tail end is connected with a fan; a plurality of blades are uniformly distributed on the hub; the motor transmission end casing is connected with a silencer, the front of the excircle of the other end of the casing is provided with a cold air inlet, and the cold air inlet is communicated with the middle cylinder; an air outlet pipe is arranged on the back of the excircle of the other end of the shell and communicated with the middle cylinder; a plurality of guide vanes are uniformly distributed on the outer circle of the middle cylinder; the shell is provided with a controller and a smoke alarm; the bottom of the machine shell is provided with two feet, each foot is provided with two mounting holes, and a pressure spring is connected below each mounting hole. The utility model discloses rational in infrastructure, cool off the motor, improved the life of fan, handle and absorb the effectual abundant of noise, with aerodynamic nature noise, motor vibration nature noise, reduce to minimum level, reduced noise pollution.
Description
Technical Field
The utility model relates to a building technical field that discharges fume especially relates to an axial-flow type fire control smoke exhaust fan.
Background
With the development of the building industry, modern buildings built in recent years are generally provided with a fire-fighting smoke exhaust system, underground system engineering such as tunnels has the characteristics of small space, high ventilation requirement and the like, and a fire-fighting smoke exhaust fan is usually used for daily ventilation. Thus, higher requirements are provided for the fire-fighting smoke exhaust fan, and the fire-fighting smoke exhaust fan not only needs to meet the normal operation in a fire-fighting state, but also needs to meet the normal operation of ordinary ventilation. At present, in the operation of a fire-fighting smoke exhaust fan, especially a fan adjacent to a living area, the air dynamic noise radiated by an air inlet and an air outlet of the fan is large in vibration noise generated by the vibration of a motor, and the noise seriously affects the human health and is a main factor for polluting the environment. The fire protection smoke exhaust fan is in the in-process of discharging fume, because the motor does not have good heat dissipation, loses efficacy because of high temperature easily, leads to the fire protection smoke exhaust fan out of work, influences the fire protection and discharges fume. Therefore, it is necessary to provide a noise-proof and temperature-reducing axial-flow type fire-fighting smoke exhaust fan to solve the above problems.
Disclosure of Invention
The purpose of the utility model is to solve the technical problem and provide an axial-flow type fire-fighting smoke exhaust fan.
In order to realize the technical purpose, reach foretell technical requirement, the utility model discloses the technical scheme who adopts is: axial-flow type fire control smoke exhaust fan, including casing, well section of thick bamboo, motor, its characterized in that is then: the middle cylinder is fixed in the shell through a support seat, and a motor is fixed on one side surface of the middle cylinder; the motor transmission end is connected with a hub, and the tail end is connected with a fan; a plurality of blades are uniformly distributed on the hub; the motor transmission end casing is connected with a silencer, a cold air inlet is arranged in front of the outer circle of the other end of the casing, the cold air inlet is connected with an air inlet pipe, and the air inlet pipe is communicated with the middle cylinder; an air outlet pipe is arranged on the back of the excircle of the other end of the shell and communicated with the middle cylinder; a plurality of guide vanes are uniformly distributed on the outer circle of the middle cylinder; the shell is provided with a controller and a smoke alarm; the bottom of the machine shell is provided with two feet, each foot is provided with two mounting holes, and a pressure spring and a bottom plate are welded below the mounting holes in sequence.
Preferably: the silencer comprises an outer barrel, an outer tube cavity and an inner tube cavity, wherein the outer tube cavity is filled with a porous noise reduction ball; and a porous sound absorption material is filled in the inner pipe cavity.
Preferably: the center of the shell is coaxial with the center of the motor.
Preferably: the hub is evenly provided with clamping grooves, and the blades are riveted in the clamping grooves.
Preferably: the controller is in signal connection with the smoke alarm.
Preferably: the controller is electrically connected with the motor.
The utility model has the advantages that: the smoke alarm can detect indoor smoke in time, alarm and prompt in time and start to discharge smoke; cold air is introduced into the air inlet pipe orifice and blown to the motor under the action of the fan to cool the motor, and heat is discharged from the air outlet pipe, so that the motor is cooled, and the service life of the fan is prolonged; a damping pressure spring is arranged below the foundation mounting hole, so that the fan runs stably, and the noise generated by mechanical vibration is reduced; a silencer is installed, and a noise reduction ball is filled in an outer pipe cavity, so that low-frequency sound waves in noise can be absorbed; the inner cavity is filled with sound absorption materials, and can absorb medium-high frequency sound waves in noise. The silencer can effectively and fully process and absorb noise, reduces aerodynamic noise and motor vibration noise to the lowest level, and reduces noise pollution.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
in the figure: 1. the air conditioner comprises a machine shell, 2 parts of feet, 3 parts of a pressure spring, 4 parts of a bottom plate, 5 parts of an air inlet pipe, 6 parts of a middle barrel, 7 parts of guide vanes, 9 parts of a junction box, 10 parts of an air outlet pipe, 11 parts of a silencer, 111 parts of an outer barrel, 112 parts of an outer pipe cavity, 113 parts of an inner pipe cavity, 12 parts of blades, 13 parts of a hub, 15 parts of a motor, 16 parts of a fan, 17 parts of a cold air inlet and 18 parts of a supporting seat.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
In the figure: axial-flow type fire control smoke exhaust fan, including casing 1, well section of thick bamboo 6, motor 15, its characterized in that is then: the middle cylinder 6 is fixed in the machine shell 1 through a supporting seat 18, and a motor 15 is fixed on one side surface of the middle cylinder 6; the transmission end of the motor 15 is connected with a hub 13, and the tail end of the motor is connected with a fan 16; a plurality of blades 12 are uniformly distributed on the hub 13; a silencer 11 is connected to the casing 1 at the transmission end of the motor 15, a cold air inlet 17 is formed in the front of the outer circle at the other end of the casing 1, the cold air inlet 17 is connected with an air inlet pipe 5, and the air inlet pipe 5 is communicated with the middle cylinder 6; an air outlet pipe 10 is arranged on the back of the excircle of the other end of the machine shell 1, and the air outlet pipe 10 is communicated with the middle cylinder 6; a plurality of guide vanes 7 are uniformly distributed on the outer circle of the middle cylinder 6; the shell 1 is provided with a controller 9 and a smoke alarm 8; the bottom of the machine shell 1 is provided with two feet 2, each foot 2 is provided with two mounting holes, and a pressure spring 3 and a bottom plate 4 are welded below the mounting holes in sequence.
In the preferred embodiment, the muffler 11 includes an outer cylinder 111, an outer tube cavity 112, and an inner tube cavity 113, wherein the outer tube cavity 112 is filled with a porous noise reduction ball; the inner cavity 113 is filled with a porous sound-absorbing material.
In the preferred embodiment, the center of the housing 1 is coaxial with the center of the motor 15.
In the preferred embodiment, the hub 13 is uniformly provided with slots, and the blades 12 are riveted in the slots.
In the preferred embodiment, the controller 9 is in signal communication with the smoke alarm 8.
In the preferred embodiment, the controller 9 is electrically connected to the motor 15.
During installation, the bottom plate, the pressure spring and the foot margin on the foot margin of the axial-flow type fire-fighting smoke exhaust fan which is well debugged are sleeved on the foot bolt, then the gasket is sleeved in, the nut is screwed on, the leveling ruler is used for correcting the level, and the nut is screwed down, so that the operation can be realized. During operation, the motor drives the blades to rotate through the hub to discharge smoke. In the process of motor rotation, the fan drives the air conditioning to enter the middle cylinder from the air inlet pipe and blow towards the motor under the action of the fan, so that the motor is cooled, and meanwhile, heat is discharged from the air outlet pipe, so that the motor is cooled.
The above embodiments of the present invention are only examples for clearly illustrating the present invention, but not for limiting the scope of the present invention, and all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.
Claims (6)
1. Axial-flow type fire control smoke exhaust fan, including casing (1), well section of thick bamboo (6), motor (15), its characterized in that: the middle cylinder (6) is fixed in the machine shell (1) through a supporting seat (18), and a motor (15) is fixed on one side surface of the middle cylinder (6); the transmission end of the motor (15) is connected with a hub (13), and the tail end of the motor is connected with a fan (16); a plurality of blades (12) are uniformly distributed on the hub (13); a silencer (11) is connected to the shell (1) at the transmission end of the motor (15), a cold air inlet (17) is formed in the front of the outer circle of the other end of the shell (1), the cold air inlet (17) is connected with an air inlet pipe (5), and the air inlet pipe (5) is communicated with the middle cylinder (6); an air outlet pipe (10) is arranged on the back of the excircle of the other end of the machine shell (1), and the air outlet pipe (10) is communicated with the middle cylinder (6); a plurality of guide vanes (7) are uniformly distributed on the outer circle of the middle cylinder (6); the shell (1) is provided with a controller (9) and a smoke alarm (8); the novel motor casing is characterized in that two ground feet (2) are arranged at the bottom of the casing (1), two mounting holes are formed in each ground foot (2), and a pressure spring (3) and a bottom plate (4) are welded below the mounting holes in sequence.
2. The axial flow type fire-fighting smoke exhaust fan according to claim 1, characterized in that: the silencer (11) comprises an outer cylinder (111), an outer pipe cavity (112) and an inner pipe cavity (113), wherein the outer pipe cavity (112) is filled with porous noise reduction balls; and the inner cavity (113) is filled with porous sound absorption materials.
3. The axial flow type fire-fighting smoke exhaust fan according to claim 1, characterized in that: the center of the machine shell (1) is coaxial with the center of the motor (15).
4. The axial flow type fire-fighting smoke exhaust fan according to claim 1, characterized in that: the hub (13) is uniformly provided with clamping grooves, and the blades (12) are riveted in the clamping grooves.
5. The axial flow type fire-fighting smoke exhaust fan according to claim 1, characterized in that: the controller (9) is in signal connection with the smoke alarm (8).
6. The axial flow type fire-fighting smoke exhaust fan according to claim 1, characterized in that: the controller (9) is electrically connected with the motor (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021770828.2U CN213270346U (en) | 2020-08-24 | 2020-08-24 | Axial-flow type fire-fighting smoke exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021770828.2U CN213270346U (en) | 2020-08-24 | 2020-08-24 | Axial-flow type fire-fighting smoke exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213270346U true CN213270346U (en) | 2021-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021770828.2U Active CN213270346U (en) | 2020-08-24 | 2020-08-24 | Axial-flow type fire-fighting smoke exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213270346U (en) |
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2020
- 2020-08-24 CN CN202021770828.2U patent/CN213270346U/en active Active
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