CN101701544A - Air exhaust and noise reduction system - Google Patents
Air exhaust and noise reduction system Download PDFInfo
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- CN101701544A CN101701544A CN200910172596A CN200910172596A CN101701544A CN 101701544 A CN101701544 A CN 101701544A CN 200910172596 A CN200910172596 A CN 200910172596A CN 200910172596 A CN200910172596 A CN 200910172596A CN 101701544 A CN101701544 A CN 101701544A
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- noise reduction
- air exhaust
- horizontal segment
- grid
- reduction system
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Abstract
The invention discloses an air exhaust and noise reduction system for exhausting cooled air for a generating set (consisting of an engine and a generator) in a closed space, which is provided with an air exhaust channel connected with a generating set heat radiator, and an air exhaust and noise reduction grid is arranged in the air exhaust channel. The air exhaust and noise reduction system is characterized in that the air exhaust channel is trumpet-shaped; the air exhaust and noise reduction grid is provided with a first level section and a second level section which are arranged at the inlet of the air exhaust channel; an inclined section is connected between the first level section and the second level section; and the noise reduction grid enables the air exhaust channel to form a plurality of overlapped stepped channels. The air exhaust and noise reduction system has reasonable layout structure and good ventilation and heat radiation effects and can effectively realize that the generating set in a compartment or a room radiates heat, vents, removes smoke and eliminates noise, thereby greatly reducing the noise generated when the generating set is working, completely according with the environmental requirement on noise of equipment and achieving the aim of improving the working environment.
Description
Technical field
The invention belongs to the power equipment technical field, be specifically related to a kind of air exhaust and noise reduction system of discharging cooling back air for the generator set (comprising motor and generator) in the confined space.
Background technique
In technique known, diesel oil or non-diesel generating set overhaul as for open-air no electric field ground and outage the time or the power supply of distribution use, when generator set is worked, noise is big especially, influence surrounding environment, in order to reduce noise, be arranged on it in envelope or in the independent room as supply vehicle.Because envelope or room must be provided with the ventilation channel of discharging cooling air, the noise of generator set will outwards transmit noise by ventilation channel.Mostly existing air draft denoising structure is to be provided with at the exhaust port place a plurality of tilting air draft noise reduction grids, be deposited with sound absorbing material on the grid, because the space of generator set still directly is connected with the external world by air draft noise reduction grid, so soundproof effect is undesirable, noise is obvious effect to external world, and the windage at exhaust port place is bigger, has also influenced the cooling cooling effect.
Summary of the invention
There is above-mentioned defective for solving prior art, the object of the present invention is to provide a kind of simple in structurely, can improve noise reduction, improve working environment, aeration-cooling effective air exhaust and noise reduction system.
For achieving the above object, the technical solution used in the present invention is: this air exhaust and noise reduction system has the ventilation channel that links to each other with generating unit radiators, be provided with air draft noise reduction grid in the ventilation channel, it is characterized in that: described ventilation channel is tubaeform, described air draft noise reduction grid has first horizontal segment and second horizontal segment that is positioned at the ventilation channel ingress, be connected with tilting section between first horizontal segment and second horizontal segment, it is a plurality of overlapping that described noise reduction grid forms ventilation channel
The shape passage.
Describedly be higher than first horizontal segment with the second horizontal segment position on the one-level grid, the position of described first horizontal segment is lower than or is consistent with the second horizontal segment height of next stage.
Describedly be lower than first horizontal segment with the second horizontal segment position on the one-level grid, the position of described first horizontal segment is higher than or is consistent with the second horizontal segment height of next stage.
Be deposited with sound absorbing material on the described air draft noise reduction grid.
Described sound absorbing material is sticking to be applied at the two sides of air draft noise reduction grid and the inner side surface of air exhaust channel.
The envelope of the outlet correspondence of described ventilation channel be provided with the shutter exhaust outlet.
Adopt the beneficial effect of technique scheme to be: this air exhaust and noise reduction system is applicable to various portable supply vehicles or is placed with the room of generator set, ventilation channel behind the radiator is a toroidal, reduced the blast of air exhaust channel, reduced windage, made air draft more unobstructed.Being provided with the shutter exhaust outlet and can reducing the windage of ventilating of the envelope of the outlet correspondence of ventilation channel is mainly used in windproof keeping off the rain.The noise reduction grid has tilting section, can directly intercept the outside conduction of noise of substantially horizontal, first horizontal segment and second horizontal segment can intercept noise and conduct to the external world from passage, be deposited with sound absorbing material on the air draft noise reduction grid, sound absorbing material can absorb the reflection of noise on the noise reduction grid, and the reflection noise exists
The shape passage is through repeatedly absorbing, and very faint in the ventilation channel outlet, noise reduction is remarkable.Because air draft denoising structure of the present invention is rationally distributed, can solve generator set heat dissipation ventilation and smoke-discharging noise elimination in envelope or the room effectively, the noise that makes generator set produce in the course of the work reduces greatly, noise in the compartment is reduced to (exhaust port 1m place noise figure) about 65 decibels by original 100 decibels, meet the environmental requirement of noise of equipment fully, therefore also reached the purpose of improving working environment.
Description of drawings
Below in conjunction with accompanying drawing specific embodiments of the invention are described in further detail.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the plan view of Fig. 1.
Fig. 3 is the structural representation of the ventilation channel of another kind of structure.
Embodiment
In the air exhaust and noise reduction system as shown in Figure 1, 2, be placed with generator set 2 in the envelope 1, the radiator of generator set 2 is communicated with ventilation channel 3, and described ventilation channel is tubaeform, has reduced the blast of air exhaust channel, has reduced windage, makes air draft more unobstructed.The envelope of the outlet correspondence of ventilation channel 3 be provided with shutter exhaust outlet 4, can reduce the windage of ventilating, be mainly used in windproof keeping off the rain.Be provided with air draft noise reduction grid in the ventilation channel, air draft noise reduction grid has first horizontal segment 5 and second horizontal segment 7 that is positioned at ventilation channel 3 ingress, be connected with tilting section 6 between first horizontal segment and second horizontal segment, it is a plurality of overlapping that described noise reduction grid forms ventilation channel
Shape passage 8.Described grid is being higher than first horizontal segment with the second horizontal segment position on the one-level grid, the position of described first horizontal segment is lower than or is consistent with the second horizontal segment height of next stage, and the intake grill position that promptly forms ventilation channel is lower than the structure of the exhaust outlet position of ventilation channel.The another kind of structural type of grid as shown in Figure 3: describedly be lower than first horizontal segment with the second horizontal segment position on the one-level grid, the position of described first horizontal segment is higher than or is consistent with the second horizontal segment height of next stage, and the intake grill position that promptly forms ventilation channel is higher than the structure of the exhaust outlet position of ventilation channel.Be deposited with sound absorbing material 9 on the described air draft noise reduction grid, sound absorbing material 9 constitutes sound-absorption layers, and sound absorbing material 9 is sticking to be applied on two faces of air intake noise reduction grid and the inner side surface of air exhaust channel.Used sound absorbing material can adopt sponge or rock wool or glass fibre cotton or flexible foam etc. to have the material of hole.
Claims (6)
1. air exhaust and noise reduction system, has the ventilation channel that links to each other with generating unit radiators, be provided with air draft noise reduction grid in the ventilation channel, it is characterized in that: described ventilation channel is tubaeform, described air draft noise reduction grid has first horizontal segment and second horizontal segment that is positioned at the ventilation channel ingress, between first horizontal segment and second horizontal segment, be connected with tilting section, described noise reduction grid make ventilation channel form a plurality of overlapping "
" the shape passage.
2. air exhaust and noise reduction system according to claim 1 is characterized in that: describedly be higher than first horizontal segment with the second horizontal segment position on the one-level grid, the position of described first horizontal segment is lower than or is consistent with the second horizontal segment height of next stage.
3. air exhaust and noise reduction system according to claim 1 is characterized in that: describedly be lower than first horizontal segment with the second horizontal segment position on the one-level grid, the position of described first horizontal segment is higher than or is consistent with the second horizontal segment height of next stage.
4. air exhaust and noise reduction system according to claim 1 is characterized in that: be deposited with sound absorbing material on the described air draft noise reduction grid.
5. air exhaust and noise reduction system according to claim 4 is characterized in that: described sound absorbing material is sticking to be applied at the two sides of air draft noise reduction grid and the inner side surface of air exhaust channel.
6. air exhaust and noise reduction system according to claim 1 is characterized in that: the envelope of the outlet correspondence of described ventilation channel be provided with the shutter exhaust outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910172596A CN101701544B (en) | 2009-11-17 | 2009-11-17 | Air exhaust and noise reduction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910172596A CN101701544B (en) | 2009-11-17 | 2009-11-17 | Air exhaust and noise reduction system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101701544A true CN101701544A (en) | 2010-05-05 |
| CN101701544B CN101701544B (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910172596A Expired - Fee Related CN101701544B (en) | 2009-11-17 | 2009-11-17 | Air exhaust and noise reduction system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101701544B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817753A (en) * | 2012-07-19 | 2012-12-12 | 太仓东能环保设备有限公司 | Air intake and noise-reducing device of diesel generator |
| CN107453252A (en) * | 2017-08-25 | 2017-12-08 | 合肥智鼎电控自动化科技有限公司 | A kind of special rain-proof radiator window of outdoor high-low pressure cabinet |
| CN107791924A (en) * | 2017-10-16 | 2018-03-13 | 河南宜和城保装备科技实业有限公司 | A kind of span formula supply vehicle |
| CN112901340A (en) * | 2021-02-04 | 2021-06-04 | 陈相雷 | Integrated noise-reduction heat-dissipation protection device for generator set |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201635803U (en) * | 2009-11-17 | 2010-11-17 | 河南宜和城保装备科技实业有限公司 | Air-discharge noise reduction system |
-
2009
- 2009-11-17 CN CN200910172596A patent/CN101701544B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817753A (en) * | 2012-07-19 | 2012-12-12 | 太仓东能环保设备有限公司 | Air intake and noise-reducing device of diesel generator |
| CN107453252A (en) * | 2017-08-25 | 2017-12-08 | 合肥智鼎电控自动化科技有限公司 | A kind of special rain-proof radiator window of outdoor high-low pressure cabinet |
| CN107791924A (en) * | 2017-10-16 | 2018-03-13 | 河南宜和城保装备科技实业有限公司 | A kind of span formula supply vehicle |
| CN112901340A (en) * | 2021-02-04 | 2021-06-04 | 陈相雷 | Integrated noise-reduction heat-dissipation protection device for generator set |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101701544B (en) | 2012-09-05 |
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Granted publication date: 20120905 Termination date: 20131117 |