CN101832173A - Air intake and noise reduction system - Google Patents
Air intake and noise reduction system Download PDFInfo
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- CN101832173A CN101832173A CN200910172597A CN200910172597A CN101832173A CN 101832173 A CN101832173 A CN 101832173A CN 200910172597 A CN200910172597 A CN 200910172597A CN 200910172597 A CN200910172597 A CN 200910172597A CN 101832173 A CN101832173 A CN 101832173A
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- air intake
- noise reduction
- horizontal segment
- grid
- noise
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Abstract
The invention discloses an air intake and noise reduction system, which is used for providing air for burning and cooling for a generator set (comprising engines and generators) in a sealed space. The air intake and noise reduction system comprises an air intake path which is arranged on bodies at two sides of the generator set, and a noise reduction grid is arranged in the air intake path. The air intake and noise reduction system is characterized in that the air intake and noise reduction grid is provided with a first horizontal section and a second horizontal section, wherein an inclined section is connected between the first horizontal section and the second horizontal section, and the noise reduction grid causes the air intake path to form a plurality of paths. Compared with the prior art, the invention has simple structure and can improve noise reduction effect, noise in the compartment is reduced to about 65 decibels (the noise value on the position far away from the air intake port for 1m) from original 100 decibels so as to totally conform to the environment protection requirements on equipment noise, and the purpose of improving working environment is realized.
Description
Technical field
The invention belongs to the power equipment technical field, a kind of air intake and noise reduction system that is used for burning with tempering air that provides for the generator set (comprising motor and generator) in the confined space is provided.
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.Provide the air intake passage that is used for burning with tempering air because envelope or room also will be provided with, the noise of generator set also can outwards transmit noise by air intake passage.Mostly existing air intake denoising structure is to be provided with at the intake grill place a plurality of tilting air intake noise reduction grids, be deposited with sound absorbing material on the grid or the lie air port of spending more than or equal to 90 is set, because the space of generator set still directly is connected with the external world by air intake noise reduction grid or lie, so the big flow of the undesirable windage of soundproof effect is undesirable, noise is obvious effect to external world.
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 the air intake and noise reduction system of working environment.
For achieving the above object, the technical solution used in the present invention is: this air intake and noise reduction system has air intake passage, described air intake passage is arranged on the envelope of both sides of generator set, be provided with the noise reduction grid in the air intake passage, it is characterized in that: described air intake noise reduction grid has first horizontal segment and second horizontal segment, 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 air intake passage
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 intake noise reduction grid.
Described sound absorbing material is sticking to be applied at the two sides of air intake noise reduction grid and the inner side surface of air inlet duct.
The inlet of described air intake passage is provided with air intake door, and described air intake door is hinged on envelope or the body of wall.
Adopt the beneficial effect of technique scheme to be: this air intake and noise reduction system is applicable to various portable supply vehicles or is placed with the room of generator set, 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 intake 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 at the air intake passage inlet, noise reduction is remarkable.Because 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 (intake grill 1m place noise figure) about 65 decibels by original 100 decibels, meet the environmental requirement of noise of equipment fully, also reached the purpose of improving working environment thus.
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 sectional view in the A-A cross section of Fig. 1.
Fig. 3 is the another kind of structural representation of grid.
Embodiment
As Fig. 1, air intake and noise reduction system shown in 2, has air intake passage 1,2, described air intake passage 1,2 are arranged on the envelope or body of wall 3 of both sides of generator set, air intake passage 1, be provided with noise reduction grid 4 in 2, described air intake noise reduction grid is made of supporting member and sound-absorption layer, wherein supporting member has first horizontal segment 5 that is positioned at the air intake passage ingress and second horizontal segment 7 that is positioned at the air intake passage outlet, second horizontal segment 7 is higher than first horizontal segment 5, between first horizontal segment 5 and second horizontal segment 7, be connected with tilting section 6, the height of described first horizontal segment 5 is highly consistent with second horizontal segment 7 of next stage, or the height of first horizontal segment 5 is lower than second horizontal segment 7 height of next stage, and the intake grill position that promptly forms air intake passage is lower than the structure of the exhaust outlet position of air intake passage.As shown in Figure 3 as the another kind of form of grid: 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 air intake passage is higher than the structure of the exhaust outlet position of air intake passage.It is a plurality of overlapping to make the noise reduction grid that air intake passage is formed
Shape passage 8.
Be deposited with sound absorbing material 9 on the described air intake noise reduction grid 4, 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 4 and the inner side surface of air inlet duct.。Used sound absorbing material can adopt sponge or rock wool or glass fibre cotton or flexible foam etc. to have the material of hole.The inlet of air intake passage 1,2 is provided with air intake door 11, and air intake door 11 is hinged on envelope or the body of wall.When generator set 10 work, need to ventilate, air door 11 can be opened, when not working, air door 11 can be closed.
Claims (6)
1. air intake and noise reduction system, has air intake passage, described air intake passage is arranged on the envelope of both sides of generator set, be provided with the noise reduction grid in the air intake passage, it is characterized in that: described air intake noise reduction grid has first horizontal segment and second horizontal segment, 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 air intake passage
The shape passage.
2. air intake 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 intake 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 intake and noise reduction system according to claim 1 is characterized in that: be deposited with sound absorbing material on the described air intake noise reduction grid.
5. air intake 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 intake noise reduction grid and the inner side surface of air inlet duct.
6. air intake and noise reduction system according to claim 1 is characterized in that: the inlet of described air intake passage is provided with air intake door, and described air intake door is hinged on envelope or the body of wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910172597A CN101832173A (en) | 2009-11-17 | 2009-11-17 | Air intake and noise reduction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910172597A CN101832173A (en) | 2009-11-17 | 2009-11-17 | Air intake and noise reduction system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101832173A true CN101832173A (en) | 2010-09-15 |
Family
ID=42716362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910172597A Pending CN101832173A (en) | 2009-11-17 | 2009-11-17 | Air intake and noise reduction system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101832173A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422797A (en) * | 2012-05-24 | 2013-12-04 | 宜兴市佳达环保工程有限公司 | Labyrinth type ventilation and sound attenuation shutters |
| CN104422112A (en) * | 2013-09-11 | 2015-03-18 | 珠海格力电器股份有限公司 | Air conditioner |
| CN104421221A (en) * | 2013-09-11 | 2015-03-18 | 珠海格力电器股份有限公司 | Silencer assembly and fan coil |
-
2009
- 2009-11-17 CN CN200910172597A patent/CN101832173A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422797A (en) * | 2012-05-24 | 2013-12-04 | 宜兴市佳达环保工程有限公司 | Labyrinth type ventilation and sound attenuation shutters |
| CN103422797B (en) * | 2012-05-24 | 2016-08-03 | 宜兴市佳达环保工程有限公司 | Labyrinth type ventilating silencing window shade |
| CN104422112A (en) * | 2013-09-11 | 2015-03-18 | 珠海格力电器股份有限公司 | Air conditioner |
| CN104421221A (en) * | 2013-09-11 | 2015-03-18 | 珠海格力电器股份有限公司 | Silencer assembly and fan coil |
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Application publication date: 20100915 |