CN215979988U - Centrifugal fire control smoke exhaust fan of big amount of wind of low noise - Google Patents
Centrifugal fire control smoke exhaust fan of big amount of wind of low noise Download PDFInfo
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- CN215979988U CN215979988U CN202122255158.1U CN202122255158U CN215979988U CN 215979988 U CN215979988 U CN 215979988U CN 202122255158 U CN202122255158 U CN 202122255158U CN 215979988 U CN215979988 U CN 215979988U
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- air
- volute
- plate
- sound insulation
- double
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- 239000000779 smoke Substances 0.000 title claims abstract description 20
- 238000009413 insulation Methods 0.000 claims abstract description 22
- 238000013016 damping Methods 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims description 10
- 239000010425 asbestos Substances 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 230000009970 fire resistant effect Effects 0.000 claims 1
- 206010010904 Convulsion Diseases 0.000 abstract description 3
- 230000036461 convulsion Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 244000035744 Hura crepitans Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
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Abstract
The utility model discloses a low-noise large-air-volume centrifugal fire-fighting smoke exhaust fan which comprises a damping base, a sound insulation box, a motor, a volute and a double-air-channel impeller, wherein the sound insulation box is arranged on the damping base and is provided with two independent chambers, the motor is arranged in one chamber, the volute is arranged in the other chamber, two sides of the double-air-channel impeller are rotatably arranged on the inner side wall of the volute, one side of the double-air-channel impeller extends out of the volute and is meshed with the output end of the motor, second air inlets communicated with two sides of the double-air-channel impeller are arranged on two sides of the volute and are communicated with a first air inlet of the sound insulation box, and an air outlet of the volute is communicated with a first air outlet of the sound insulation box. This fire control smoke exhaust fan is when the noise abatement, and the double-duct impeller rotates at the spiral case intracavity of spiral case, forms twice independent wind chamber, and the intake of twice independent wind chamber is more, and the produced air current impact of reposition of redundant personnel convulsions is littleer.
Description
Technical Field
The utility model relates to the technical field of fan equipment, in particular to a low-noise large-air-volume centrifugal fire-fighting smoke exhaust fan.
Background
The noise of the fan mainly comprises aerodynamic noise, mechanical noise and structural noise, the noise is mainly caused by the vibration of equipment (such as the vibration generated by a motor, the vibration generated by a transmission structure and the vibration generated by air flow impact), the wind sound generated by air flow and the impact of particles in the air flow, some fans are designed to reduce noise pollution and prevent dust, the fans are arranged in a sound-proof box, thus, although the noise leakage and the entering of pollutants (particles) are reduced, the noise of the fan is weakened, but because the relatively closed space and the unilateral air intake influence the air intake of the fan, especially when relating to a centrifugal fan for fire-fighting smoke discharge in a fire-fighting system, the fan needs the big row (air delivery) amount of wind like this, sets up the amount of wind that the sound-proof box hinders the fan, just influences the work of discharging fume, influences fire rescue work, influences people's life and property safety.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a low-noise large-air-volume centrifugal fire-fighting smoke exhaust fan, which aims to solve the problem that the centrifugal fire-fighting smoke exhaust fan reduces the air volume of the fan and influences the smoke exhaust work while reducing the noise pollution.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a centrifugal fire control smoke exhaust fan of big amount of wind of low noise, includes shock attenuation base, sound-proof box, motor, spiral case, two wind channel impellers, install on the shock attenuation base sound-proof box, sound-proof box is provided with two independent cavities, one of them install in the cavity the motor, another install in the cavity the spiral case, the both sides of two wind channel impellers are rotated and are installed on the inside wall of spiral case, one side of two wind channel impellers stretch out in the spiral case outer and with the output meshing of motor, the both sides of spiral case be provided with the second air intake of two wind channel impeller both sides intercommunication, the second air intake with the first air intake intercommunication of sound-proof box, the air outlet of spiral case with the first air outlet intercommunication of sound-proof box.
The further technical scheme is as follows: the double-air-duct impeller comprises side plates, a middle partition plate, blades and rotating rings, wherein the side plates are coaxially arranged, the middle partition plate is arranged in the middle of the side plates, the blades are annularly arranged and evenly arranged to form an air driving ring, the air driving ring is arranged between the side plates and the middle partition plate, and the side plates are coaxially arranged, the rotating rings are symmetrically arranged and respectively arranged on the two outer side surfaces of the side plates, the rotating rings are coaxially arranged with the side plates, and the rotating rings are rotatably arranged on the inner side wall of the volute.
The further technical scheme is as follows: the blades are arc-shaped plates, the arc-shaped plates are obliquely arranged between the side plates and the middle partition plate, and one ends of the arc-shaped plates on the middle partition plate are higher than one ends of the arc-shaped plates on the side plates.
The further technical scheme is as follows: the plate body of the arc-shaped plate is twisted in two opposite directions along the axial direction of the arc-shaped plate to form a curved tile plate.
The further technical scheme is as follows: the first air inlet of the sound insulation box is provided with a filter plate, and the filter plate is composed of a plurality of refractory asbestos wool filling plates.
The further technical scheme is as follows: and a flow dividing herringbone plate positioned between the filter plate and the second air inlet is arranged in the first air inlet of the sound insulation box.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides a low-noise large-air-volume centrifugal fire-fighting smoke exhaust fan, which is characterized in that a sound insulation box is utilized to reduce noise, a double-air-channel impeller is driven by a motor to rotate in a volute cavity of a volute, centrifugal motion generates negative pressure, the volute exhausts air through second air inlets on two sides of the volute simultaneously, and the double-air-channel impeller forms two independent air cavities in the volute.
In addition, the blades are arc-shaped plates, the air inlet effect of the arc-shaped plates is better, the arc-shaped plates are obliquely arranged to enable wind at the second air inlet of the volute to be effectively drawn in, and the curved-surface tile plates can guide air flow on the outer sides, close to the second air inlets, of the curved-surface tile plates to the inner side, so that the suction (air inlet) effect is improved.
Drawings
Fig. 1 is a schematic structural view of a low-noise large-air-volume centrifugal fire-fighting smoke exhaust fan of the utility model.
FIG. 2 is a schematic view of the volute of FIG. 1 according to the present invention.
Fig. 3 is a schematic structural view of the dual duct impeller of fig. 1 according to the present invention.
Fig. 4 is a schematic structural view of the arc plate of fig. 3 according to the present invention.
Fig. 5 is a schematic structural view of the curved shingle of fig. 4 in accordance with the present invention.
Reference numerals: 1. a shock-absorbing base; 2. a sound insulation box; 3. a motor; 4. a volute; 5. a dual duct impeller; 6. a first air inlet; 7. a first air outlet; 8. a second air inlet; 9. a side plate; 10. a middle partition plate; 11. a blade; 12. a rotating ring; 13. a filter plate; 14. a flow dividing herringbone plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The first embodiment is as follows:
in the embodiment, as shown in fig. 1, 2 and 3, the structure of the centrifugal fire-fighting smoke exhaust fan with low noise and large air volume is as follows: the damping device comprises a damping base 1, a sound insulation box 2, a motor 3, a volute 4 and a double-air-duct impeller 5, wherein the bottom of the damping base 1 is provided with an elastic damping part, such as a damping spring, a sandbox, a rubber plate and the like, the sound insulation box 2 is installed on the upper surface of the damping base 1 through bolts, the sound insulation box 2 is made of the sound insulation plate, a sound absorption plate is arranged in the sound insulation box, a silencer and other silencing measures are arranged at an air inlet end, the sound insulation box 2 is provided with two independent chambers, the motor 3 is installed in one chamber, the volute 4 is installed in the other chamber, two sides of the double-air-duct impeller 5 are rotatably installed on the inner side wall of the volute 4, one side of the double-air-duct impeller 5 extends out of the volute 4 and is meshed with the output end of the motor 3, two sides of the volute 4 are provided with second air inlets 8 communicated with two sides of the double-air-duct impeller 5, the second air inlets 8 are communicated with a first air inlet 6 of the sound insulation box 2, the air outlet of the volute 4 is communicated with the first air outlet 7 of the sound insulation box 2.
Wherein, two wind channel impeller 5 include curb plate 9, median septum 10, blade 11 and swivel becket 12, two coaxial settings of curb plate 9, median septum 10 is installed in the middle of two curb plates 9, blade 11 is the annular and arranges and evenly set up and constitute the ring of dispelling the wind, the ring of dispelling the wind is installed between curb plate 9 and median septum 10, and with the coaxial setting of curb plate 9, 12 symmetries of swivel becket set up and install respectively at the lateral surface of two curb plates 9, swivel becket 12 sets up with the curb plate 9 is coaxial, swivel becket 12 rotates and installs on the inside wall of spiral case 4.
The working process of the utility model is as follows: after motor 3 starts, drive two wind channels impeller 5 and rotate at the spiral case intracavity of spiral case 4, centrifugal motion produces the negative pressure, spiral case 4 is convulsions simultaneously through the second air intake 8 of its both sides, two wind channels impeller 5 forms twice independent wind chamber in spiral case 4, compare with the big wind chamber of integral type of traditional one side air inlet, under the prerequisite that guarantees that big wind chamber volume is not reduced, the intake of twice independent wind chamber is more, the produced air current of reposition of redundant personnel convulsions strikes littleer.
Example two:
in this embodiment, as shown in fig. 4, the vane 11 is an arc-shaped plate, the arc-shaped plate is obliquely arranged between the side plate 9 and the middle partition plate 10, and one end of the arc-shaped plate on the middle partition plate 10 is higher than one end of the arc-shaped plate on the side plate 9.
The blade 11 is the arc, and the arc is held in the palm the wind effect better, and the setting of arc slope is in order to make the wind of 4 second air intakes 8 departments of spiral case more effectual being taken out into, improves suction (air inlet) effect.
Example three:
in this embodiment, as shown in fig. 5, the plate body of the arc-shaped plate is twisted in two opposite directions along the axial direction to form a curved tile plate.
The curved shingle may direct airflow on the outside of the second air inlet 8 inwardly, improving the suction (intake) effect.
Preferably, the first air inlet 6 of the soundproof box 2 is provided with a filter plate 13, and the filter plate 13 is composed of a plurality of refractory asbestos wool filler plates. In order to reduce the entering of external pollutants, especially prevent the entering of particles during smoke exhaust, reduce noise and protect equipment from safe operation.
Preferably, a flow dividing herringbone plate 14 positioned between the filter plate and the second air inlet 8 is arranged in the first air inlet 6 of the soundproof box 2.
Two tail plates of the flow dividing herringbone plate 14 are respectively connected to two side surfaces of the volute 4 for flow dividing, so that interference generated when air enters from two sides is prevented, turbulence is prevented, noise is prevented, and air volume is reduced.
Although the utility model has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (6)
1. The utility model provides a centrifugal fire control smoke exhaust fan of big amount of wind of low noise which characterized in that: comprises a damping base (1), a sound insulation box (2), a motor (3), a volute (4) and a double-air-duct impeller (5), wherein the sound insulation box (2) is installed on the damping base (1), the sound insulation box (2) is provided with two independent chambers, the motor (3) is installed in one chamber, the volute (4) is installed in the other chamber, the two sides of the double-air-duct impeller (5) are rotatably installed on the inner side wall of the volute (4), one side of the double-air-duct impeller (5) extends out of the volute (4) and is meshed with the output end of the motor (3), the two sides of the volute (4) are provided with second air inlets (8) communicated with the two sides of the double-air-duct impeller (5), the second air inlets (8) are communicated with a first air inlet (6) of the sound insulation box (2), the air outlet of the volute (4) is communicated with the first air outlet (7) of the sound insulation box (2).
2. The centrifugal fire-fighting smoke exhaust fan with low noise and large air volume according to claim 1, characterized in that: double-air-duct impeller (5) includes curb plate (9), median septum (10), blade (11) and swivel becket (12), two curb plate (9) coaxial setting, median septum (10) are installed two in the middle of curb plate (9), blade (11) are the annular and arrange and evenly set up and constitute and drive the wind ring, it installs to drive the wind ring curb plate (9) with between median septum (10), and with curb plate (9) coaxial setting, swivel becket (12) symmetry sets up and installs respectively two the lateral surface of curb plate (9), swivel becket (12) with curb plate (9) coaxial setting, swivel becket (12) rotate to be installed on the inside wall of spiral case (4).
3. The centrifugal fire-fighting smoke exhaust fan with low noise and large air volume according to claim 2, characterized in that: the blades (11) are arc-shaped plates, the arc-shaped plates are obliquely arranged between the side plates (9) and the middle partition plate (10), and one ends of the arc-shaped plates on the middle partition plate (10) are higher than one ends of the arc-shaped plates on the side plates (9).
4. A low noise, high air flow, centrifugal fire and smoke exhaust fan according to claim 3, wherein: the plate body of the arc-shaped plate is twisted in two opposite directions along the axial direction of the arc-shaped plate to form a curved tile plate.
5. The centrifugal fire-fighting smoke exhaust fan with low noise and large air volume according to claim 4, characterized in that: the first air inlet (6) of sound-proof box (2) is provided with filter (13), filter (13) comprise polylith fire-resistant asbestos silk infill panel.
6. The centrifugal fire-fighting smoke exhaust fan with low noise and large air volume according to claim 5, characterized in that: and a flow dividing herringbone plate (14) positioned between the filter plate (13) and the second air inlet (8) is arranged in the first air inlet (6) of the sound insulation box (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122255158.1U CN215979988U (en) | 2021-09-17 | 2021-09-17 | Centrifugal fire control smoke exhaust fan of big amount of wind of low noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122255158.1U CN215979988U (en) | 2021-09-17 | 2021-09-17 | Centrifugal fire control smoke exhaust fan of big amount of wind of low noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215979988U true CN215979988U (en) | 2022-03-08 |
Family
ID=80463166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122255158.1U Expired - Fee Related CN215979988U (en) | 2021-09-17 | 2021-09-17 | Centrifugal fire control smoke exhaust fan of big amount of wind of low noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215979988U (en) |
-
2021
- 2021-09-17 CN CN202122255158.1U patent/CN215979988U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220308 |
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| CF01 | Termination of patent right due to non-payment of annual fee |