CN209278006U - A kind of improvement structure of diesel generating set low noise sound box bodies - Google Patents
A kind of improvement structure of diesel generating set low noise sound box bodies Download PDFInfo
- Publication number
- CN209278006U CN209278006U CN201822204743.7U CN201822204743U CN209278006U CN 209278006 U CN209278006 U CN 209278006U CN 201822204743 U CN201822204743 U CN 201822204743U CN 209278006 U CN209278006 U CN 209278006U
- Authority
- CN
- China
- Prior art keywords
- low noise
- generating set
- diesel generating
- box bodies
- sound box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of improvement structures of diesel generating set low noise sound box bodies to belong to low noise diesel generating set installing area for reducing diesel generating set noise pollution.Including cabinet, exhaust outlet that cabinet side is set, the air inlet that the cabinet other side is set；The air inlet and exhaust outlet is maze-type structure；Further, the exhaust outlet is uniformly provided with several shelves items being parallel to each other；Diesel generating set low noise sound box bodies are improved into, exhaust outlet, into exhaust outlet are open types by being commonly designed, it is to the refraction number of sound wave less；Curve guide impeller becomes labyrinth type, considerably increases the refraction number of sound wave, then pass through the multiple absorption of low noise sound box bodies interior suction sound cotton, and the energy of sound wave is largely consumed, to achieve the effect that reduce noise.
Description
Technical field
The utility model relates to a kind of improvement structures of diesel generating set low noise sound box bodies, for reducing diesel-driven generator
Group noise pollution, belongs to low noise diesel generating set installing area.
Background technique
Currently, having many consumers since environmental requirement is higher and higher and needing to purchase low noise bavin when purchasing backup power source
The level of noise for the low noise unit that oily generating set, usually major part diesel generating set producer provide is in 7 meters of 75dB or so, such as
Better noise reduction effect in need, other than selecting better diesel engine, the outer dimension and price of low noise sound box bodies have non-
Often big raising, cost performance are very low.Structure and form proposition this requires diesel engine unit producer to low noise sound box bodies
How higher requirement, can further decrease the noise of diesel generating set, to meet the needs of users.
Summary of the invention
In view of defects in the prior art, in order to further decrease the noise of diesel generating set, the utility model
Purpose is to provide a kind of improvement structure of diesel generating set low noise sound box bodies.
To achieve the goals above, the technical scheme adopted by the utility model is a kind of diesel generating set low noise
The improvement structure of cabinet, including cabinet, exhaust outlet that cabinet side is arranged in, the air inlet that the cabinet other side is arranged in；It is described
Air inlet and exhaust outlet be maze-type structure；
Further, the exhaust outlet is uniformly provided with several shelves items being parallel to each other；
The front/rear end of several grades of items and cabinet is mutually perpendicular to；
The shelves item is V-groove structure；
The V-groove notch is towards bottom bottom；
It further, is the air guide structure of ladder structure of right angle inside the air inlet；
Baffle plate is equipped with inside the air guide structure, baffle plate forms air-guiding aisle in air guide structure；
The baffle plate is the obtuse angle structure that one end is bevel edge, another side is vertical edge formation；
Low noise sound box bodies be into air draft enforceable, described baffle plate effect be increase sound wave refraction number,
It is to reduce windage, comprehensive two aspect factors using obtuse angle structure, which takes 135 °, and effect is preferable；
Where the bevel edge is connected to air inlet on side, the roof of vertical edge and air guide structure is equipped with gap and and wind-guiding
The roof of structure is vertical；
The air-guiding aisle that the bevel edge position of the air guide structure and baffle plate are formed is the latter end of entire air-guiding aisle；Into
The wind for entering cabinet enters from air inlet to be reached in the air-guiding aisle that baffle plate is formed in air guide structure, logical eventually by wind-guiding
The latter end in road enters in cabinet.
The beneficial effects of the utility model are:
By diesel generating set low noise sound box bodies into, exhaust outlet improves, be spacious into exhaust outlet by what is be commonly designed
Open type, it is less to the refraction number of sound wave；Curve guide impeller becomes labyrinth type, considerably increases the refraction number of sound wave, then lead to
The multiple absorption of acoustical cotton in too low noise box body, the energy of sound wave are largely consumed, to achieve the effect that reduce noise.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the exhaust outlet position assumption diagram of Fig. 1.
Fig. 3 is the side view of Fig. 2.
Fig. 4 is the structure chart of the air inlet of Fig. 1.
In figure, 1, cabinet, 2, exhaust outlet, 3, air inlet, 4, shelves item, 5, baffle plate.
Specific embodiment
With reference to the accompanying drawing and the utility model is described in detail in specific embodiment.
Including cabinet 1, the air draft of 1 side of cabinet is arranged in a kind of improvement structure of diesel generating set low noise sound box bodies
Mouth 2, the air inlet 3 that 1 other side of cabinet is set；The air inlet 3 and exhaust outlet 2 is maze-type structure；
Further, the exhaust outlet 2 is uniformly provided with several shelves items 4 being parallel to each other；
The front/rear end of several grades of items 4 and cabinet 1 is mutually perpendicular to；
The shelves item 4 is V-groove structure；
The V-groove notch is towards bottom bottom；
It further, is the air guide structure of ladder structure of right angle inside the air inlet 3；
Baffle plate 5 is equipped with inside the air guide structure, baffle plate 5 forms air-guiding aisle in air guide structure；
The baffle plate 5 is the obtuse angle structure that one end is bevel edge, another side is vertical edge formation；
Where the bevel edge is connected to air inlet on side, the roof of vertical edge and air guide structure is equipped with gap and and wind-guiding
The roof of structure is vertical；
In order to implement above scheme, two 50kW low noise diesel generating sets are devised, wherein a low noise sound box bodies
Use open type into outlet structure, another low noise sound box bodies use labyrinth type into exhaust outlet, carry out installation survey respectively
Examination.It in same working environment, is detected at 7 meters of open type low noise unit, the average value of unit noise is 75.2dB；
It is detected at 7 meters of labyrinth type low noise unit, the average value of unit noise is 69.6dB.Due to two low noise box shape
Size is not much different, statistical material and time cost increasing degree very little.Therefore, this design is in the design of low noise sound box bodies
It can promote the use of.
Claims (7)
1. a kind of improvement structure of diesel generating set low noise sound box bodies, it is characterised in that: including cabinet, be arranged in cabinet side
Exhaust outlet, the air inlet of the cabinet other side is set；The air inlet and exhaust outlet is maze-type structure；The air draft
Mouth is uniformly provided with several shelves items being parallel to each other；It is the air guide structure of ladder structure of right angle inside the air inlet.
2. a kind of improvement structure of diesel generating set low noise sound box bodies according to claim 1, it is characterised in that: several
The front/rear end of the shelves item and cabinet is mutually perpendicular to.
3. a kind of improvement structure of diesel generating set low noise sound box bodies according to claim 2, it is characterised in that: described
Shelves item be V-groove structure.
4. a kind of improvement structure of diesel generating set low noise sound box bodies according to claim 3, it is characterised in that: described
V-groove notch towards bottom bottom.
5. a kind of improvement structure of diesel generating set low noise sound box bodies according to claim 1, it is characterised in that: described
Air guide structure inside be equipped with baffle plate, baffle plate forms air-guiding aisle in air guide structure.
6. a kind of improvement structure of diesel generating set low noise sound box bodies according to claim 5, it is characterised in that: described
Baffle plate be one end be bevel edge, another side be vertical edge formed obtuse angle structure.
7. a kind of improvement structure of diesel generating set low noise sound box bodies according to claim 6, it is characterised in that: described
Bevel edge be connected on side where air inlet, the roof of vertical edge and air guide structure is equipped with gap and hangs down with the roof of air guide structure
Directly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822204743.7U CN209278006U (en) | 2018-12-26 | 2018-12-26 | A kind of improvement structure of diesel generating set low noise sound box bodies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822204743.7U CN209278006U (en) | 2018-12-26 | 2018-12-26 | A kind of improvement structure of diesel generating set low noise sound box bodies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209278006U true CN209278006U (en) | 2019-08-20 |
Family
ID=67607392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822204743.7U Expired - Fee Related CN209278006U (en) | 2018-12-26 | 2018-12-26 | A kind of improvement structure of diesel generating set low noise sound box bodies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209278006U (en) |
-
2018
- 2018-12-26 CN CN201822204743.7U patent/CN209278006U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190820 Termination date: 20201226 |