CN211625598U - Octagonal low-noise high-pressure air exhauster - Google Patents
Octagonal low-noise high-pressure air exhauster Download PDFInfo
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- CN211625598U CN211625598U CN202020284143.0U CN202020284143U CN211625598U CN 211625598 U CN211625598 U CN 211625598U CN 202020284143 U CN202020284143 U CN 202020284143U CN 211625598 U CN211625598 U CN 211625598U
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Abstract
The utility model belongs to the technical field of ventilation equipment, especially, relate to an octagon low noise high pressure exhaust fan, including external quick-witted case on the wall body, set up the air intake in this quick-witted case one side, set up the air outlet at quick-witted case opposite side, set up the fan at quick-witted incasement, its characterized in that machine case includes square air inlet box, octagon air-out box, the air intake comprises a set of sub-air intake of evenly arranging in square air inlet box side, the air outlet comprises a set of sub-air outlet of evenly arranging in octagon air-out box side, a set of sub-air intake and a set of sub-air outlet set up face to face, the fan is centrifugal fan, the fan is connected. The utility model adopts the octagonal design, is more humanized and prevents reverse air and rainwater; the centrifugal fan is adopted instead of the axial flow main machine, so that the noise is reduced, the air exhaust pressure is increased, the replacement ventilation frequency is increased, and the air exhaust efficiency is increased.
Description
Technical Field
The utility model belongs to the technical field of ventilation equipment, especially, relate to an octagonal low noise high pressure exhaust fan.
Background
Large underground vehicle section storehouses (application storehouses, overhaul storehouses, parking train inspection storehouses, shop repair storehouses, vehicle body storehouses, bogie workshops and the like) are all provided with ventilation systems, roof fans or ventilation pipelines are generally adopted for ventilation and air exchange, the temperature, the smoke and the toxic gas are adjusted, along with the improvement of production technology, the production capacity is continuously expanded, the required large underground vehicle section storehouses are also larger and larger, the height reaches 12-16 meters, and the width reaches more than 100 meters. In the large underground vehicle section storehouses, the height 2-3 meters below the ground is the position where workers are located, most of equipment and articles are arranged in the height range, and air resistance is high. Conventional ventilation systems, such as roof fans and ventilation ducts, cannot achieve sufficient ventilation, and become blind spots for ventilation. Especially in high-temperature seasons, smoke and dust cannot be discharged in time due to poor ventilation effect, the temperature cannot be adjusted, the working environment is very severe, and operators cannot work normally. The existing ventilation and air exchange system adopts a traditional common exhaust fan, has high noise and no waterproof and rainproof technology, is easy to cause short circuit of the fan and cannot normally operate; the common exhaust fan is easy to have reverse air inlet, and the exhaust efficiency is greatly reduced.
Disclosure of Invention
The utility model aims at providing an octagonal low-noise high-pressure exhaust fan which has the advantages of space exhaust, high exhaust efficiency, water resistance, rain resistance, prevention of inverse air inlet fan, low noise, interference prevention and noise pollution reduction.
The purpose of the utility model is realized by the following technical scheme:
the utility model discloses an octagon low noise high pressure air exhauster, including external quick-witted case on the wall body, set up the air intake in this quick-witted case one side, set up the air outlet of machine case opposite side sets up quick-witted incasement fan, its characterized in that machine case include square air inlet box, the octagon air-out box that is connected with this square air inlet box, the air intake by evenly arranging a set of sub-air intake of square air inlet box side is constituteed, the air outlet by evenly arranging a set of sub-air outlet of octagon air-out box side is constituteed, a set of sub-air intake and a set of sub-air outlet set up to the face, the fan be centrifugal fan, the fan be connected with intelligent control device.
The sub air inlet or the sub air outlet is a rectangular hole or a circular hole.
The side plates at the four sides of the square air inlet box body are internally provided with silencing cotton and silencing pore plates.
The utility model has the advantages that:
(1) the octagonal low-noise high-pressure exhaust fan adopts the octagonal design, is more humanized and prevents reverse air and rainwater;
(2) the octagonal low-noise high-pressure exhaust fan adopts the centrifugal fan instead of the axial flow main machine, mainly reduces noise, improves exhaust pressure, improves replacement ventilation times and increases exhaust efficiency;
(3) the octagonal low-noise high-pressure exhaust fan has low noise, and the silencing cotton and the corresponding silencing orifice plates are arranged in the side plates on the four sides, so that the four sides form a high-efficiency silencing cavity, thereby greatly reducing the exhaust noise and leading the exhaust noise to reach (65-68) dB;
(4) the octagonal low-noise high-pressure exhaust fan has the advantages that the air inlet is designed into a bird-proof net shape, flyers and other sundries are prevented from being sucked at the air inlet, and the design is humanized;
(5) the octagonal low-noise high-pressure exhaust fan has the advantages that the outer hanging machine is octagonal, the wind resistance and the rain resistance are strong, and the appearance is more attractive;
(6) the utility model discloses an octagonal low noise high pressure exhaust fan, external octagonal cover plate can dismantle wantonly, conveniently maintain the interior dust of motor, clearance shell.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a left side view of fig. 1 according to the present invention.
Fig. 3 is a right side view of fig. 1 according to the present invention.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings.
As shown in fig. 1-3, the octagonal low-noise high-pressure exhaust fan of the present invention comprises a case 2 externally hung on a wall, an air inlet 1 disposed on one side of the case 2, an air outlet 3 disposed on the other side of the case 2, and a fan 4 disposed in the case, and is characterized in that the case 2 comprises a square air inlet case 2-1 and an octagonal air outlet case 2-2 connected to the square air inlet case 2-1, the air inlet 1 is composed of a set of sub air inlets 1-1 uniformly disposed on one side of the square air inlet case, the air outlet 3 is composed of a set of sub air outlets 3-1 uniformly disposed on one side of the octagonal air outlet case 2-2, the set of sub air inlets 1-1 and the set of sub air outlets 3-1 are oppositely disposed, the fan 4 is a centrifugal fan, and the fan 4 is connected with an intelligent control device.
The sub air inlet 1-1 or the sub air outlet 3-1 is a rectangular hole or a circular hole.
The side plates at the four sides of the square air inlet box body 2-1 are internally provided with silencing cotton 5 and silencing hole plates 6.
As shown in figures 1-3, the octagonal low-noise high-pressure exhaust fan of the utility model adopts the octagonal design for the external hanging part, which is more humanized, prevents the reverse air and the rainwater, and has more beautiful appearance. The fan 4 in the octagonal low-noise high-pressure exhaust fan adopts a centrifugal fan instead of an axial flow host, and mainly reduces noise, improves exhaust pressure and improves replacement ventilation times. Silencing cotton 5 and corresponding silencing orifice plates 6 are arranged in the side plates at the four sides of the octagonal low-noise high-pressure exhaust fan, so that high-efficiency silencing cavities are formed at the four sides, the exhaust noise is greatly reduced, and the exhaust noise reaches (65-68) dB. Considering that there are the flyers and inhale the risk of other debris during the air inlet, the design of octagonal low noise high pressure exhaust fan air intake 1 is network structure, has the effect of bird net, effectively prevents that there is the flyer and inhales other debris etc. in the department of admitting air. The fan 4 of each octagonal low-noise high-pressure exhaust fan is connected with an intelligent control device. The octagonal low-noise high-pressure exhaust fan is externally hung with the octagonal cover plate and can be detached at will, so that the motor is convenient to maintain, and dust in the shell is convenient to clean.
The utility model is suitable for a large-scale station, airport, warehouse, mine, tunnel overhaul storehouse dust is bigger, personnel are intensive, the circulation of air speed requires slow, require the space to air exhaust, air exhaust efficient, waterproof, rain-proof, prevent against the big space ventilation system of high that air inlet machine, noise are low.
Claims (3)
1. The utility model provides an octagon low noise high pressure exhaust fan, includes the external quick-witted case on the wall body, sets up the air intake of this quick-witted case one side, sets up the air outlet of quick-witted case opposite side, sets up the fan in the machine incasement, its characterized in that quick-witted case include square air inlet box, the octagon air-out box that is connected with this square air inlet box, the air intake by evenly arrange a set of sub-air intake of square air inlet box one side is constituteed, the air outlet by evenly arrange a set of sub-air outlet of octagon air-out box one side constitute, a set of sub-air intake and a set of sub-air outlet set up to the face, the fan be centrifugal fan, the fan be connected with intelligent control device.
2. An octagonal low-noise high-pressure air exhauster as claimed in claim 1 wherein the sub-air inlet or sub-air outlet is a rectangular hole or a circular hole.
3. The octagonal low-noise high-pressure air exhauster as claimed in claim 1, wherein silencing cotton and silencing orifice plate are disposed in the side plates of four sides of the square air inlet box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020284143.0U CN211625598U (en) | 2020-03-10 | 2020-03-10 | Octagonal low-noise high-pressure air exhauster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020284143.0U CN211625598U (en) | 2020-03-10 | 2020-03-10 | Octagonal low-noise high-pressure air exhauster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211625598U true CN211625598U (en) | 2020-10-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020284143.0U Active CN211625598U (en) | 2020-03-10 | 2020-03-10 | Octagonal low-noise high-pressure air exhauster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211625598U (en) |
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2020
- 2020-03-10 CN CN202020284143.0U patent/CN211625598U/en active Active
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