CN211116685U - Axial-flow type fire-fighting smoke exhaust fan - Google Patents
Axial-flow type fire-fighting smoke exhaust fan Download PDFInfo
- Publication number
- CN211116685U CN211116685U CN201922298583.1U CN201922298583U CN211116685U CN 211116685 U CN211116685 U CN 211116685U CN 201922298583 U CN201922298583 U CN 201922298583U CN 211116685 U CN211116685 U CN 211116685U
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- box body
- fan
- shell
- axial
- flow type
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Abstract
The utility model discloses an axial-flow type fire-fighting smoke exhaust fan, which comprises a shell and a fan, wherein the shell comprises a multi-section barrel body which is sequentially connected, the inner diameter of the multi-section barrel body gradually decreases from front to back, and the fan is arranged in a barrel body which is close to an air outlet end; the front end of the shell is connected with a box body, the upper end of the box body is respectively provided with a plurality of jacks communicated with the interior of the box body, the lower end surface in the box body is respectively provided with a plurality of slots, and a plurality of filter screens with mesh diameters decreasing from front to back are correspondingly inserted between the two; a smoke sensor is arranged in the box body and close to an air inlet of the box body, a frequency converter is installed in a power supply loop of the fan, and the smoke sensor is electrically connected with the frequency converter through a controller. The utility model discloses can the efficient exhaust smog, dismouting, clearance and maintenance are convenient, and convenient to use can the efficient hold back and filter the particulate matter of the different particle diameters that contain in the smog, has avoided environmental pollution, and is both energy-conserving, the different smog concentration's of adaptation occasion of discharging fume that again can be fine.
Description
Technical Field
The utility model relates to a fire-fighting equipment field specifically is an axial-flow type fire control smoke exhaust fan.
Background
The axial-flow type fire-fighting smoke exhaust fan is one of common fire-fighting equipment, is widely used in production workshops, factory buildings, large-scale entertainment places, fire fighting channels and other places, undertakes tasks such as daily ventilation and timely smoke exhaust in case of fire and is one of very important facilities of a fire fighting system. The existing axial-flow type fire-fighting smoke exhaust fan only plays a role in ventilation and smoke exhaust, is used in some occasions with large smoke quantity, particularly in the case of fire, can generate a large amount of dense smoke, and the smoke and the dense smoke usually contain a large amount of particles and can be discharged into the atmosphere without interception and filtration, so that the environmental pollution is caused. In addition, the output power of the axial-flow type fire-fighting smoke exhaust fan is generally a constant value, so that the energy-saving requirement cannot be met, and the axial-flow type fire-fighting smoke exhaust fan can be well adapted to smoke exhaust occasions with different smoke concentrations.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defect and not enough that prior art exists, providing an axial-flow type fire control smoke exhaust fan.
The technical scheme of the utility model as follows:
the utility model provides an axial-flow type fire control smoke exhaust fan, including casing and fan, the front end of casing is air inlet end, rear end and is the air-out end, its characterized in that: the shell comprises a plurality of sections of cylinders which are sequentially connected from front to back, the inner diameters of the plurality of sections of cylinders gradually decrease from front to back, and the fan is arranged in one section of cylinder close to the air outlet end; the front end of the shell is connected with a box body, the front side of the box body is provided with an air inlet, the rear side of the box body is provided with an air outlet communicated with the air inlet end of the shell, the upper end of the box body is respectively provided with a plurality of jacks communicated with the interior of the box body, the lower end surface in the box body is respectively provided with a plurality of slots corresponding to the jacks, a plurality of filter screens for cutting off the interior of the box body are respectively and correspondingly inserted between the jacks and the slots, and the mesh diameters of the filter screens are gradually reduced from front to back; a smoke sensor is arranged in the box body and close to an air inlet of the box body, a frequency converter is installed in a power supply loop of the fan, and the smoke sensor is electrically connected with the frequency converter through a controller.
The axial-flow type fire-fighting smoke exhaust fan is characterized in that: the multi-section cylinder bodies are connected in a matched manner through threads.
The axial-flow type fire-fighting smoke exhaust fan is characterized in that: the box body is connected to the front end of the shell through a clamping piece.
The axial-flow type fire-fighting smoke exhaust fan is characterized in that: the upper ends of the filter screens extend out of the jacks at the positions respectively and are connected with handles respectively.
The utility model has the advantages that:
1. the utility model discloses the casing that adopts connects gradually by the multisection barrel and constitutes, and the internal diameter of multisection barrel from the front to the back gradual change steadilys decrease, and the fan is installed in a section of barrel that is close to the air-out end, under the prerequisite that does not change fan output, can efficient discharge smog, and the multisection barrel dismouting of being convenient for, the clearance and the maintenance of being convenient for.
2. The utility model adopts the box body connected at the air inlet end of the shell, and a plurality of filter screens with gradually decreasing mesh diameters from front to back are arranged in the box body in a plug-in mounting mode, so that the filter screen can efficiently intercept and filter the particles with different particle diameters contained in the smoke, and the environmental pollution caused by the discharge of the particles is avoided; the box body with the functions of interception and filtration can be detached, so that the shell and the fan can be used as daily ventilation, and the use is convenient.
3. The utility model discloses a smoke transducer real-time detection smog concentration to pass through the output of converter in good time adjustment fan according to the smog concentration situation of difference, both energy-conserving, the different smog concentration's of adaptation occasion of discharging fume that again can be fine.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a block diagram of the electrical control principle of the present invention.
Detailed Description
Referring to the attached drawings, an axial-flow type fire-fighting smoke exhaust fan comprises a shell 1 and a fan 2, wherein the front end of the shell 1 is an air inlet end, the rear end of the shell is an air outlet end, the shell 1 comprises a plurality of sections of cylinders which are sequentially connected from front to back, the inner diameters of the plurality of sections of cylinders gradually decrease from front to back, and the fan 2 is arranged in one section of cylinder close to the air outlet end; the front end of the shell 1 is connected with a box body 3, the front side of the box body 3 is provided with an air inlet, the rear side of the box body 3 is provided with an air outlet communicated with the air inlet end of the shell 1, the upper end of the box body 3 is respectively provided with a plurality of jacks 4 communicated with the interior of the box body, the lower end surface in the box body 3 is respectively provided with a plurality of slots 5 corresponding to the plurality of jacks 4, a plurality of filter screens 6 for cutting off the interior of the box body 3 are respectively and correspondingly inserted between the plurality of jacks 4 and the plurality of slots 5, and the mesh diameters of the plurality of filter screens 6 are gradually reduced from front to; a smoke sensor 7 is arranged in the box body 3 and close to an air inlet of the box body, a frequency converter 8 is installed in a power supply loop of the fan 2, and the smoke sensor 7 is electrically connected with the frequency converter 8 through a controller 9.
The utility model discloses in, the multisection barrel is connected through screw-thread fit.
The box 3 is connected at the front end of the shell 1 through a clamping piece 10, so that the box is convenient to disassemble and assemble.
The upper ends of the filter screens 6 extend out of the jacks at the positions respectively and are connected with handles 11 respectively.
The invention is further described below with reference to the accompanying drawings:
in the great occasion of some smog volume and when the conflagration takes place, insert a plurality of filter screens 6 in to box 3 along a plurality of jacks 4, make the lower extreme of a plurality of filter screens 6 correspond respectively and insert in a plurality of slots 5, fan 2 work, smog gets into through the air intake of 3 front sides of box, filter through a plurality of filter screens 6 that mesh diameter degressive in proper order from the front to the back, the particulate matter of the different particle diameters that contain in the smog is held back by most, comparatively clean air gets into the inside of casing 1, finally discharge through the rear end (air-out end) of casing 1. After the work is finished, the plurality of filter screens 6 are drawn out through the lifting handle 11, so that the filter screens are convenient to replace and clean.
The inner diameter of the multi-section barrel is gradually reduced from front to back, so that a gradually-changed-diameter air channel is formed inside the shell 1, and the fan 2 is arranged in the barrel close to the air outlet end, so that smoke can be efficiently discharged on the premise of not changing the output power of the fan 2; in addition, the shell 1 consisting of a plurality of sections of cylinders is convenient to disassemble and assemble, and is convenient to clean a small amount of particles attached to the inside of the shell 1 and maintain the fan 2.
The case 3, which plays a role of intercepting and filtering, can be disassembled so that the case 1 and the blower 2 can be used as daily ventilation.
The smoke sensor 7 detects the concentration of smoke entering the box body 3 in real time and feeds the detected concentration back to the controller 9, and the controller 9 adjusts the output power of the fan 2 in time through the frequency converter 8 according to different smoke concentration conditions so as to achieve the purpose of energy conservation and enable the smoke sensor to be well suitable for smoke discharge occasions with different smoke concentrations.
The above embodiments are only described for the preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention, and the modifications and improvements made by the technical solutions of the present invention should fall into the protection scope of the present invention without departing from the design spirit of the present invention.
Claims (4)
1. The utility model provides an axial-flow type fire control smoke exhaust fan, including casing and fan, the front end of casing is air inlet end, rear end and is the air-out end, its characterized in that: the shell comprises a plurality of sections of cylinders which are sequentially connected from front to back, the inner diameters of the plurality of sections of cylinders gradually decrease from front to back, and the fan is arranged in one section of cylinder close to the air outlet end; the front end of the shell is connected with a box body, the front side of the box body is provided with an air inlet, the rear side of the box body is provided with an air outlet communicated with the air inlet end of the shell, the upper end of the box body is respectively provided with a plurality of jacks communicated with the interior of the box body, the lower end surface in the box body is respectively provided with a plurality of slots corresponding to the jacks, a plurality of filter screens for cutting off the interior of the box body are respectively and correspondingly inserted between the jacks and the slots, and the mesh diameters of the filter screens are gradually reduced from front to back; a smoke sensor is arranged in the box body and close to an air inlet of the box body, a frequency converter is installed in a power supply loop of the fan, and the smoke sensor is electrically connected with the frequency converter through a controller.
2. The axial-flow type fire-fighting smoke exhaust fan according to claim 1, characterized in that: the multi-section cylinder bodies are connected in a matched manner through threads.
3. The axial-flow type fire-fighting smoke exhaust fan according to claim 1, characterized in that: the box body is connected to the front end of the shell through a clamping piece.
4. The axial-flow type fire-fighting smoke exhaust fan according to claim 1, characterized in that: the upper ends of the filter screens extend out of the jacks at the positions respectively and are connected with handles respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922298583.1U CN211116685U (en) | 2019-12-19 | 2019-12-19 | Axial-flow type fire-fighting smoke exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922298583.1U CN211116685U (en) | 2019-12-19 | 2019-12-19 | Axial-flow type fire-fighting smoke exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211116685U true CN211116685U (en) | 2020-07-28 |
Family
ID=71696819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922298583.1U Expired - Fee Related CN211116685U (en) | 2019-12-19 | 2019-12-19 | Axial-flow type fire-fighting smoke exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211116685U (en) |
-
2019
- 2019-12-19 CN CN201922298583.1U patent/CN211116685U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200728 Termination date: 20201219 |