CN207554347U - Roots blower - Google Patents
Roots blower Download PDFInfo
- Publication number
- CN207554347U CN207554347U CN201721613328.6U CN201721613328U CN207554347U CN 207554347 U CN207554347 U CN 207554347U CN 201721613328 U CN201721613328 U CN 201721613328U CN 207554347 U CN207554347 U CN 207554347U
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- CN
- China
- Prior art keywords
- housing
- noise reduction
- dashpot
- roots blower
- air outlet
- 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.)
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Abstract
The utility model discloses a kind of Roots blowers, including housing, the housing has air inlet and air outlet, the air inlet and the air outlet are located at the upper and lower side of the housing respectively, the first noise reduction dashpot is equipped between the air inlet and the housing cavity, the second noise reduction dashpot is equipped between the air outlet and the housing cavity.After adopting the above technical scheme, the inlet and outlet in Roots blower housing set noise reduction dashpot respectively, step pressure reducing is realized, so as to effectively reduce the aerodynamic noise generated in work.
Description
Technical field
The utility model is related to a kind of Roots blowers.
Background technology
Roots blower is widely used in all trades and professions, it is a kind of two-spool compressor tool, and two rotors are led to by prime mover
A pair of of synchromesh gear driving is crossed, makees the opposite constant speed rotation in direction, the axis of two rotors is parallel, and air blower inlet and outlet mouth is not straight
It connects and communicates, rotor surrounds the inner cavity of closing with casing and wallboard, and inner cavity in operation process does not change, opened in inner cavity substantially
The moment opened, the high pressure gas from discharge chamber flow back rapidly, and the gas pressure of interior intracavitary is made to increase suddenly, gas is consequently formed
It compresses and generates gas shock noise.What intensity highest, influence were maximum in Roots blower operation is exactly aerodynamic noise, it is in wind
Noise source is formed in machine and is radiated outward into and out of air port through air blower, seriously pollutes environment.
Utility model content
Problem to be solved in the utility model is to provide a kind of sieve for the aerodynamic noise that can effectively reduce and be generated in work
Thatch air blower.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution：Roots blower, including housing,
The housing has air inlet and air outlet, and the air inlet and the air outlet are located at the upper and lower side of the housing, institute respectively
It states and the first noise reduction dashpot is equipped between air inlet and the housing cavity, be equipped between the air outlet and the housing cavity
Second noise reduction dashpot.
The cross section of the first noise reduction dashpot is parallelogram.
The cross section of the second noise reduction dashpot is parallelogram.
The periphery of the second noise reduction dashpot be equipped with several water conservancy diversion relief ports, the water conservancy diversion relief port by be connected chamber with
The air outlet connection.
There are four the water conservancy diversion relief ports.
The water conservancy diversion relief port is rectangle.
The air inlet and the air outlet are square hole or circular hole.
After adopting the above technical scheme, the inlet and outlet in Roots blower housing set noise reduction dashpot respectively, realize by
Grade decompression, so as to effectively reduce the aerodynamic noise generated in work.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model Roots blower
Fig. 2 is the structure diagram of the utility model Roots blower housing
Fig. 3 is the A direction views (part) in Fig. 2
Fig. 4 is the B direction views (part) in Fig. 2
Specific embodiment
The embodiment of the utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, Roots blower, including housing 1, is installed on the end cap 2 of 1 both sides of housing and fuel tank 3.Housing 1 with
And end cap 2 surrounds an inner cavity.
As shown in Fig. 2, the housing has air inlet 11 and air outlet 12, the air inlet 11 and the air outlet 12 divide
Not Wei Yu the housing upper and lower side, between the air inlet 11 and the housing cavity be equipped with the first noise reduction dashpot 13, institute
It states and the second noise reduction dashpot 14 is equipped between air outlet and the housing cavity.It is set respectively in the inlet and outlet of Roots blower housing
Noise reduction dashpot is put, realizes step pressure reducing, so as to effectively reduce the aerodynamic noise generated in work.
As shown in figure 3, the cross section of the first noise reduction dashpot 13 is parallelogram.Parallelogram sturcutre causes
Air pressure gradually changes, and air pressure will not be mutated, so as to effectively reduce the aerodynamic noise that inner cavity generates in work.
As shown in figure 4, the cross section of the second noise reduction dashpot 14 is parallelogram.The second noise reduction dashpot
Periphery be equipped with several water conservancy diversion relief ports 15, the water conservancy diversion relief port connects by the way that chamber is connected with the air outlet.The water conservancy diversion
There are four relief ports.The water conservancy diversion relief port 15 is rectangle.The cross section of noise reduction dashpot is parallelogram and water conservancy diversion
The setting of relief port, also for step pressure reducing is better achieved, so as to effectively reduce the aerodynamic noise generated in work.
The air inlet 11 and the air outlet 12 are square hole or circular hole.Air inlet 11 and air outlet 12 are located at first respectively
In the cross section of 13 and second noise reduction dashpot 14 of noise reduction dashpot.
Claims (7)
1. Roots blower, including housing, the housing has air inlet and air outlet, it is characterised in that：The air inlet and
The air outlet is located at the upper and lower side of the housing respectively, delays between the air inlet and the housing cavity equipped with the first noise reduction
Jet-bedding is equipped with the second noise reduction dashpot between the air outlet and the housing cavity.
2. Roots blower according to claim 1, it is characterised in that：The cross section of the first noise reduction dashpot is flat
Row quadrangle.
3. Roots blower according to claim 1, it is characterised in that：The cross section of the second noise reduction dashpot is flat
Row quadrangle.
4. Roots blower according to claim 1, it is characterised in that：If the periphery of the second noise reduction dashpot is equipped with
Dry water conservancy diversion relief port, the water conservancy diversion relief port are connected by the way that chamber is connected with the air outlet.
5. Roots blower according to claim 4, it is characterised in that：There are four the water conservancy diversion relief ports.
6. Roots blower according to claim 4 or 5, it is characterised in that：The water conservancy diversion relief port is rectangle.
7. Roots blower according to claim 1, it is characterised in that：The air inlet and the air outlet for square hole or
Circular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721613328.6U CN207554347U (en) | 2017-11-28 | 2017-11-28 | Roots blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721613328.6U CN207554347U (en) | 2017-11-28 | 2017-11-28 | Roots blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207554347U true CN207554347U (en) | 2018-06-29 |
Family
ID=62677516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721613328.6U Active CN207554347U (en) | 2017-11-28 | 2017-11-28 | Roots blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207554347U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236657A (en) * | 2018-11-20 | 2019-01-18 | 山东三牛机械有限公司 | A kind of Roots blower noise reduction casing |
-
2017
- 2017-11-28 CN CN201721613328.6U patent/CN207554347U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236657A (en) * | 2018-11-20 | 2019-01-18 | 山东三牛机械有限公司 | A kind of Roots blower noise reduction casing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Roots blower Effective date of registration: 20190325 Granted publication date: 20180629 Pledgee: Agricultural Bank of China Limited by Share Ltd Pinghu branch Pledgor: Pinghu heywel environmental protection equipment Co. Registration number: 2019330000081 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |