CN220319946U - Fan muffler easy to maintain - Google Patents
Fan muffler easy to maintain Download PDFInfo
- Publication number
- CN220319946U CN220319946U CN202321996993.3U CN202321996993U CN220319946U CN 220319946 U CN220319946 U CN 220319946U CN 202321996993 U CN202321996993 U CN 202321996993U CN 220319946 U CN220319946 U CN 220319946U
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- China
- Prior art keywords
- cylinder
- silencing
- wall
- sound
- thick bamboo
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- 230000030279 gene silencing Effects 0.000 claims abstract description 31
- 239000011229 interlayer Substances 0.000 claims abstract description 14
- 230000003584 silencer Effects 0.000 claims abstract description 14
- 230000000903 blocking effect Effects 0.000 claims abstract description 11
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 12
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 12
- 241001330002 Bambuseae Species 0.000 claims description 12
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 12
- 239000011425 bamboo Substances 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 230000001743 silencing effect Effects 0.000 abstract description 9
- 210000001503 joint Anatomy 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to the technical field of fan silencers, in particular to an easy-to-maintain fan silencer which comprises a telescopic bracket, wherein one side of the top of the telescopic bracket is attached with a connecting cylinder, one end of the connecting cylinder is fixedly provided with a butt joint disc, the outer wall of the other end of the connecting cylinder is provided with external screw threads, the inner wall of the connecting cylinder is attached with three groups of sound blocking rings, one end of the connecting cylinder is connected with a silencing cylinder, one end of the inner wall of the silencing cylinder is provided with internal screw threads, the inner wall of the silencing cylinder is attached with a buffer interlayer, the surface of the buffer interlayer is provided with a spiral air duct, one end of the silencing cylinder is connected with an air outlet cylinder, the improved easy-to-maintain fan silencer is used for silencing a fan air outlet in a multi-dimensional manner by adding devices such as the sound blocking rings, the buffer interlayer and the sound absorbing cylinder, the silencing effect is enhanced, and free butt joint among the cylinders is realized by adding external screw threads or internal screw threads between the cylinders through adding front bearings and rear bearings.
Description
Technical Field
The utility model relates to the technical field of fan silencers, in particular to an easy-to-maintain fan silencer.
Background
The fan is a custom abbreviation of China for gas compression and gas conveying machinery, and the fan generally comprises a ventilator, a blower and a wind driven generator, and the gas compression and gas conveying machinery is a machinery for converting rotary mechanical energy into gas pressure energy and kinetic energy and conveying the gas out; the high-pressure fans are commonly used, but in some environments with higher ventilation requirements, users can choose to use fans with higher flow, and noise of the fans with higher flow is relatively increased, so that the environmental protection requirements cannot be met, and the problems that the inside of the existing factory is difficult to solve are solved.
With the increasing development of modern industrial technology, the national society has an increasing demand for environmental protection. Under the condition that no silencing equipment is adopted, the noise emitted from the air inlet and outlet of the fan to the environment can reach 110-120 dB, and the noise greatly exceeds the environmental protection requirement standard, so that the fan silencer is required to be used for silencing when the fan operates, and is generally arranged in an exhaust system of equipment such as the fan, and the like, so that the fan silencer is an auxiliary device for silencing noise generated by overlarge air flow and flow velocity of an inlet and an outlet of the fan in the working process of the fan, can reduce impact noise in the air conveying process, and is widely used in the field of fluid machinery; most of the existing fan silencers are of an integrated structure, so that maintenance and daily maintenance are difficult, and most of the silencers are single in silencing mode and imperfect in silencing effect, so that the fan silencers convenient to maintain are provided.
The prior patent (publication number: CN 209621736U) discloses a fan silencer. The inlet reducing pipe is positioned in front of the box body and connected with the outlet of the fan by using a flange, the outlet reducing pipe is positioned at the rear of the box body and connected with the inlet pipeline of the chimney by using a flange, and the silencing modules are equidistantly arranged in the box body and have gaps. Because the utility model adopts the silencing modules and the inlet and outlet reducing pipes at the two ends, the utility model can achieve good silencing effect, and can adjust the quantity of the silencing modules according to the fan model to obtain different silencing effects. And the process is simple, the occupied area of equipment is small, the equipment investment is small, and the silencing effect is good. The inventors found that the following problems exist in the prior art in the process of implementing the present utility model: 1. the existing design has only one silencing mode, and the silencing effect is not obvious enough; 2. most of the silencing barrels of the existing design are of integrated structures, and are not beneficial to daily maintenance, cleaning and maintenance.
Disclosure of Invention
The utility model aims to provide a fan silencer which is easy to maintain, so as to solve the problems that the silencing mode is single and is not beneficial to maintenance and the like in the background technology. In order to achieve the above purpose, the present utility model provides the following technical solutions: the fan silencer easy to maintain comprises a telescopic bracket, wherein a connecting cylinder is attached to one side of the top of the telescopic bracket;
one end of the connecting cylinder is fixed with a butt joint disc, the outer wall of the other end of the connecting cylinder is provided with external screw threads, the inner wall of the connecting cylinder is attached with three groups of sound-blocking rings, one end of the connecting cylinder is connected with a silencing cylinder, one end of the inner wall of the silencing cylinder is provided with internal screw threads, the inner wall laminating of amortization section of thick bamboo has the buffering intermediate layer, the surface of buffering intermediate layer is equipped with the spiral wind channel, the one end of amortization section of thick bamboo is connected with out the dryer, the one end of going out the dryer is fixed with the sound insulation net, the interior ratio of going out the dryer is combined with and inhales a sound section of thick bamboo, it is equipped with a plurality of sound holes to inhale the surface of sound section of thick bamboo.
Further preferably, a rear bearing is fixed at one end of the top of the telescopic bracket, a front bearing is fixed at the other end of the top of the telescopic bracket, a pulley is fixed at the bottom of the telescopic bracket, an integrated structure is formed between the telescopic bracket and the rear bearing as well as between the telescopic bracket and the front bearing, and the front bearing is arranged on one side of the rear bearing in parallel.
Further preferably, the connecting cylinder is in threaded connection with the internal thread at one end of the inner wall of the silencing cylinder through external thread, and the silencing cylinder is in threaded connection with the internal thread at one end of the inner wall of the air outlet cylinder through external thread at one end of the outer wall.
Further preferably, an integral structure is formed between the connecting cylinder and the sound blocking ring, an integral structure is formed between the silencing cylinder and the buffer interlayer, and an integral structure is formed between the air outlet cylinder and the sound absorbing cylinder.
Further preferably, the telescopic support forms a movable structure between the connecting cylinder and the air outlet cylinder through the rear bearing and the front bearing respectively.
Further preferably, the sound absorbing cylinder is made of glass fiber, and the sound absorbing holes are uniformly distributed on the surface of the sound absorbing cylinder.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, devices such as the sound blocking ring, the buffer interlayer and the sound absorbing cylinder are added, the fan air outlet is silenced in a multidimensional way, the sound blocking ring is used for reducing noise by weakening wind pressure, the buffer interlayer is used for providing silencing effect by dispersing wind speed through the spiral air duct, and the sound absorbing cylinder is used for providing silencing effect by absorbing noise, so that the overall silencing effect of the device is enhanced.
According to the utility model, the front bearing and the rear bearing are added, and the external thread or the internal thread is added between the barrels, so that the barrels can be freely abutted, and the barrels can be easily rotated and disassembled with the help of the bearings only by rotating the barrels of the corresponding parts, so that the maintenance work becomes simple and convenient.
Drawings
FIG. 1 is a schematic diagram of an axial structure 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 diagram of the left-hand full-section structure of the utility model.
In the figure: 1. a telescopic bracket; 101. a rear bearing; 102. a front bearing; 103. a pulley; 2. a connecting cylinder; 201. a butt joint disc; 202. a sound blocking ring; 203. an external thread; 3. a sound deadening cylinder; 301. internal thread; 302. a buffer interlayer; 303. a spiral air duct; 4. an air outlet cylinder; 401. a sound insulation net; 402. a sound absorbing cylinder; 403. and the sound absorption holes are formed in the base.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present utility model based on the embodiments of the present utility model.
Referring to fig. 1 to 3, the present utility model provides a technical solution: a fan silencer easy to maintain comprises a telescopic bracket 1, wherein a connecting cylinder 2 is attached to one side of the top of the telescopic bracket 1;
one end of the connecting cylinder 2 is fixed with a butt joint disc 201, the outer wall of the other end of the connecting cylinder 2 is provided with an external thread 203, the inner wall of the connecting cylinder 2 is attached with three groups of sound-blocking rings 202, one end of the connecting cylinder 2 is connected with a silencing cylinder 3, one end of the inner wall of the silencing cylinder 3 is provided with an internal thread 301, the inner wall of the silencing cylinder 3 is attached with a buffer interlayer 302, the surface of the buffer interlayer 302 is provided with a spiral air duct 303, one end of the silencing cylinder 3 is connected with an air outlet cylinder 4, one end of the air outlet cylinder 4 is fixed with a sound insulation net 401, the inner ratio of the air outlet cylinder 4 is combined with a sound-absorbing cylinder 402, and the surface of the sound-absorbing cylinder 402 is provided with a plurality of sound-absorbing holes 403.
In this embodiment, as shown in fig. 1, 2 and 3, a rear bearing 101 is fixed at one end of the top of the telescopic bracket 1, a front bearing 102 is fixed at the other end of the top of the telescopic bracket 1, a pulley 103 is fixed at the bottom of the telescopic bracket 1, an integral structure is formed between the telescopic bracket 1 and the rear bearing 101 and between the telescopic bracket and the front bearing 102, and the front bearing 102 is arranged in parallel on one side of the rear bearing 101.
In this embodiment, as shown in fig. 2 and 3, the connecting cylinder 2 is in threaded connection with the internal thread 301 at one end of the inner wall of the silencing cylinder 3 through the external thread 203 at one end of the outer wall, and the silencing cylinder 3 is in threaded connection with the internal thread 301 at one end of the inner wall of the air outlet cylinder 4 through the external thread 203 at one end of the outer wall, so that the quick connection or disassembly among the connecting cylinder 2, the silencing cylinder 3 and the air outlet cylinder 4 can be realized through the structure.
In this embodiment, as shown in fig. 2 and 3, an integral structure is formed between the connecting cylinder 2 and the sound blocking ring 202, an integral structure is formed between the sound damping cylinder 3 and the buffer interlayer 302, and an integral structure is formed between the air outlet cylinder 4 and the sound absorbing cylinder 402, which can provide a stable sound damping structure and improve the sound absorbing effect of each component.
In this embodiment, as shown in fig. 1, 2 and 3, the telescopic bracket 1 forms a movable structure between the connecting cylinder 2 and the air outlet cylinder 4 through the rear bearing 101 and the front bearing 102, and the structure is convenient for disassembling or assembling the connecting cylinder 2 and the air outlet cylinder 4, thereby saving a great deal of manpower required during disassembly and assembly.
In this embodiment, as shown in fig. 2 and 3, the sound absorbing cylinder 402 is made of glass fiber, and the sound absorbing holes 403 are uniformly distributed on the surface of the sound absorbing cylinder 402, so that the sound absorbing effect of the device is further improved.
The application method and the advantages of the utility model are as follows: this fan muffler of easy to maintain, when using, the working process is as follows:
as shown in fig. 1, 2 and 3, the device is pushed to the side of a fan needing to be silenced, a butt joint disc 201 at one end of a connecting cylinder 2 is connected with a fan outlet, the fan is started, high-speed air flows out from the fan outlet and enters the inside of the connecting cylinder 2, the track of the straight forward movement of the high-speed air is changed through the blocking of three groups of sound blocking rings 202, the high-speed air is changed into a vertically floating forward state, and the wind noise of the high-speed air is reduced for the first time; when the high-speed air enters the silencing barrel 3, the spiral air duct 303 on the surface of the buffer interlayer 302 can further disperse the flow speed of the high-speed air, and the noise of the high-speed air is reduced again; when the high-speed air finally passes through the air outlet cylinder 4, the sound absorbing cylinder 402 inside the air outlet cylinder 4 can continuously absorb noise generated when the high-speed air flows through the plurality of sound absorbing holes 403 on the surface, and finally when the high-speed air flows out of the device through the sound insulation net 401, the noise reduction effect of three different dimensions is achieved, and the noise reduction effect is achieved; meanwhile, when the device needs maintenance and cleaning, the connecting cylinder 2 can rotate along the rear bearing 101 or the air outlet cylinder 4 or the front bearing 102 according to specific positions, the cylinder body can be quickly disassembled, and the interior of the device is maintained and cleaned.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a fan muffler of easy to maintain, includes telescopic bracket (1), its characterized in that: a connecting cylinder (2) is attached to one side of the top of the telescopic bracket (1);
the utility model discloses a sound absorbing device, including connecting section of thick bamboo (2), connecting section of thick bamboo (2)'s the other end outer wall is equipped with external screw thread (203), connecting section of thick bamboo (2)'s inner wall laminating has three sound blocking rings (202), connecting section of thick bamboo (2)'s one end is connected with amortization section of thick bamboo (3), amortization section of thick bamboo (3)'s inner wall one end is equipped with internal screw thread (301), amortization section of thick bamboo (3)'s inner wall laminating has buffer interlayer (302), buffer interlayer (302)'s surface is equipped with spiral wind channel (303), the one end of amortization section of thick bamboo (3) is connected with out dryer (4), the one end of going out dryer (4) is fixed with sound insulation net (401), the interior ratio of going out dryer (4) is combined with and is inhaled sound tube (402), the surface of inhaling sound tube (402) is equipped with a plurality of sound absorbing holes (403).
2. The easy-to-maintain fan silencer of claim 1, wherein: the telescopic support is characterized in that a rear bearing (101) is fixed at one end of the top of the telescopic support (1), a front bearing (102) is fixed at the other end of the top of the telescopic support (1), a pulley (103) is fixed at the bottom of the telescopic support (1), an integrated structure is formed between the telescopic support (1) and the rear bearing (101) and between the telescopic support and the front bearing (102), and the front bearing (102) is arranged on one side of the rear bearing (101) in parallel.
3. The easy-to-maintain fan silencer of claim 1, wherein: the connecting cylinder (2) is in threaded connection with the internal thread (301) at one end of the inner wall of the silencing cylinder (3) through the external thread (203), and the silencing cylinder (3) is in threaded connection with the internal thread (301) at one end of the inner wall of the air outlet cylinder (4) through the external thread (203) at one end of the outer wall.
4. The easy-to-maintain fan silencer of claim 1, wherein: the connecting cylinder (2) and the sound blocking ring (202) form an integrated structure, the silencing cylinder (3) and the buffer interlayer (302) form an integrated structure, and the air outlet cylinder (4) and the sound absorbing cylinder (402) form an integrated structure.
5. The easy-to-maintain fan silencer of claim 1, wherein: the telescopic bracket (1) forms a movable structure between the connecting cylinder (2) and the air outlet cylinder (4) through the rear bearing (101) and the front bearing (102).
6. The easy-to-maintain fan silencer of claim 1, wherein: the sound absorbing cylinder (402) is made of glass fiber, and the sound absorbing holes (403) are uniformly distributed on the surface of the sound absorbing cylinder (402).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321996993.3U CN220319946U (en) | 2023-07-27 | 2023-07-27 | Fan muffler easy to maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321996993.3U CN220319946U (en) | 2023-07-27 | 2023-07-27 | Fan muffler easy to maintain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220319946U true CN220319946U (en) | 2024-01-09 |
Family
ID=89419033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321996993.3U Active CN220319946U (en) | 2023-07-27 | 2023-07-27 | Fan muffler easy to maintain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220319946U (en) |
-
2023
- 2023-07-27 CN CN202321996993.3U patent/CN220319946U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |