CN215949831U - Anti-type silencer for air outlet of Roots blower - Google Patents
Anti-type silencer for air outlet of Roots blower Download PDFInfo
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- CN215949831U CN215949831U CN202122570549.2U CN202122570549U CN215949831U CN 215949831 U CN215949831 U CN 215949831U CN 202122570549 U CN202122570549 U CN 202122570549U CN 215949831 U CN215949831 U CN 215949831U
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Abstract
The utility model discloses an anti-type silencer for an air outlet of a Roots blower, which comprises a shell, wherein an air inlet extends out of the shell, an elbow, a reducing pipeline, an inner cylinder section, a partition area, an outer cylinder section and an air outlet are sequentially arranged in the length direction of the shell behind the air inlet along the air inlet direction of the air inlet, the air inlet is connected with the elbow, the inlet of the reducing pipeline is connected with the outlet of the elbow, the outlet of the reducing pipeline is connected with the inlet of a first section of branch pipe of the inner cylinder section, the outlet of the first section of branch pipe and the inlet of a second section of branch pipe are exposed in the shell of the inner cylinder section, the outlet of the second section of branch pipe and the inlet of a punching pipeline of the outer cylinder section are exposed in the partition area, and the outlet of the punching pipeline is connected with the air outlet of the shell. By adopting the design scheme of the utility model, sound absorption materials are not adopted, and the sound is reduced by the scaling of the gas so as to deal with the compressed gas with the pressure higher than the atmospheric pressure.
Description
Technical Field
The utility model belongs to the technical field of Roots blower parts, and particularly relates to an anti-type silencer for an air outlet of a Roots blower.
Background
When a human body is in a noise environment, the working efficiency is influenced, and great harm is generated to the health of the human body. The reasons for noise generation are many: mechanical equipment operating noise, man-made noise, air delivery duct noise, and the like.
The compressed air is conveyed in the pipeline to generate higher noise, and particularly, the air conveyed by the blower belongs to the compressed air in the outlet pipeline, so that the compressed air has higher noise and larger pulsation.
The tradition adopts damping formula muffler can absorb more noise energy, but damping formula muffler contains sound absorbing material, and these sound absorbing material do not protect the environment and also are blown away easily, lead to the noise cancelling effect to descend.
SUMMERY OF THE UTILITY MODEL
The technical problem is as follows: the utility model aims to solve the problems that the stability of an air outlet of the existing Roots blower adopting a damping type silencer is poor, the service life is influenced, and the silencing effect is influenced.
The technical scheme is as follows: the utility model adopts the following technical scheme:
an anti-type silencer for an air outlet of a Roots blower comprises a shell, wherein an air inlet extends out of the shell, an elbow, a reducing pipeline, an inner barrel section, a partition area, an outer barrel section and an air outlet are sequentially arranged in the length direction of the shell behind the air inlet along the air inlet direction of the air inlet, an inlet of the reducing pipeline is connected with an outlet of the elbow, an outlet of the reducing pipeline is connected with an inlet of a first section branch pipe of the inner barrel section, an outlet of the first section branch pipe and an inlet of a second section branch pipe are exposed in the inner barrel section shell, an outlet of the second section branch pipe and an inlet of a punching pipeline of the outer barrel section are exposed in the partition area, an outlet of the punching pipeline is connected with the air outlet of the shell, a first isolation plate for isolating the reducing pipeline from the inner barrel section is arranged in the shell at the connecting position of the outlet of the reducing pipeline and the inlet of the first section branch pipe of the inner barrel section, and a second isolation plate for isolating the outlet of the inner barrel section from the partition area is arranged in the shell of the second section branch pipe of the inner barrel section, a third isolation plate for isolating the partition area from the outer cylinder section is arranged in the shell at the inlet of the outer cylinder section punching pipeline, and a fourth isolation plate for isolating the outer cylinder section from the air outlet is arranged in the shell at the outlet of the outer cylinder section punching pipeline.
The connection mode between each part adopts the welding mode.
By forming a plurality of partition areas, compressed air enters the inner cylinder section through the air inlet, the air speed is accelerated through the reducing pipeline, the noise reduction efficiency is improved, the inner cylinder section is divided into two halves, one half is connected with the first partition plate, the other half is connected with the second partition plate, the middle is disconnected, and the first air expansion and contraction are generated in a cavity formed between the inner cylinder section and the shell; and then the gas enters the outer cylinder section, the punching pipeline is connected with the third isolation plate and the fourth isolation plate, a hole is formed in the pipe wall of the punching pipeline, and a cavity formed between the punching pipeline and the shell generates secondary gas expansion and contraction.
Further, each isolation plate is an isolation layer formed by extending the outer wall of the current pipeline to the inner wall of the shell.
Furthermore, the shell, the air inlet, the elbow, the reducing pipeline, the inner cylinder section, the partition area, the outer cylinder section, the partition plate and the air outlet are all made of metal products.
Because all are metal products, so can adopt the welded mode to carry out interconnect, combine more firmly like this, spare part can not blown away.
Further, the length of the first branch pipe, the length of the second branch pipe and the distance between the outlet of the first branch pipe and the inlet of the second branch pipe are the same.
Furthermore, the wall surface of the punched pipeline is punched, and the aperture ratio is 25% -40%.
Furthermore, the reducing pipeline reduces the diameter along the air inlet direction, and the diameter of the outlet of the reducing pipeline, the diameter of the first branch pipe, the diameter of the second branch pipe and the diameter of the punching pipeline are the same.
Further, the dividing area is equal to the length of 1/6-1/10 punching pipelines.
Has the advantages that: compared with the prior art, the utility model has the following advantages:
by adopting the design scheme of the utility model, sound absorption materials are not adopted, and the sound is reduced by the contraction and expansion of the gas so as to deal with the compressed gas with higher atmospheric pressure, prevent the parts from being blown away, and simultaneously, the sound reduction effect is further enhanced and the working environment of the staff is improved by the expansion and contraction of the gas twice.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic plan view of the present invention.
Detailed Description
The utility model is further illustrated below with reference to the figures and examples.
Example 1
As shown in attached drawings 1 and 2, an anti-type silencer for an air outlet of a Roots blower comprises a shell 1, an air inlet 2 extends out of the shell 1, an elbow 3, a reducing pipeline 4, an inner cylinder section, a partition area 5, an outer cylinder section and an air outlet 6 are sequentially arranged in the length direction of the shell 1 behind the air inlet 2 along the air inlet direction of the air inlet 2, the air inlet 2 is connected with the elbow 3, the inlet of the reducing pipeline 4 is connected with the outlet of the elbow 3, the outlet of the reducing pipeline 4 is connected with the inlet of a first section branch pipe 7 of the inner cylinder section, the outlet of the first section branch pipe 7 and the inlet of a second section branch pipe 8 are exposed in the inner cylinder section shell 1, the outlet of the second section branch pipe 8 and the inlet of a punching pipeline 9 of the outer cylinder section are exposed in the partition area 5, the outlet of the punching pipeline 9 is connected with the air outlet 6 of the shell 1, and a first partition plate 10 for separating the reducing pipeline 4 from the inner cylinder section is arranged in the shell 1 at the joint of the outlet of the inner cylinder section and the inlet of the first section branch pipe 7, a second isolation plate 11 for isolating the inner cylinder section from the partition area 5 is arranged in the shell 1 at the outlet of the second section of the inner cylinder section and the branch pipe 8, a third isolation plate 12 for isolating the partition area 5 from the outer cylinder section is arranged in the shell 1 at the inlet of the outer cylinder section punching pipeline 9, and a fourth isolation plate 13 for isolating the outer cylinder section from the air outlet 6 is arranged in the shell 1 at the outlet of the outer cylinder section punching pipeline 9.
The connection mode between each part adopts the welding mode.
By forming a plurality of partition areas, compressed air enters the inner cylinder section through the air inlet, the air speed is accelerated through the reducing pipeline, the noise reduction efficiency is improved, the inner cylinder section is divided into two halves, one half is connected with the first partition plate, the other half is connected with the second partition plate, the middle is disconnected, and the first air expansion and contraction are generated in a cavity formed between the inner cylinder section and the shell; and then the gas enters the outer cylinder section, the punching pipeline is connected with the third isolation plate and the fourth isolation plate, a hole is formed in the pipe wall of the punching pipeline, and a cavity formed between the punching pipeline and the shell generates secondary gas expansion and contraction.
Each isolation plate is an isolation layer formed by extending the outer wall of the current pipeline to the inner wall of the shell.
The shell 1, the air inlet 2, the elbow 3, the reducing pipeline 4, the inner cylinder section, the partition area 5, the outer cylinder section, the partition board and the air outlet 6 are all products made of metal materials.
Because all are metal products, so can adopt the welded mode to carry out interconnect, combine more firmly like this, spare part can not blown away.
The length of the first branch pipe 7, the length of the second branch pipe 8 and the distance between the outlet of the first branch pipe 7 and the inlet of the second branch pipe 8 are the same.
The wall surface of the punching pipeline 9 is punched, and the aperture ratio is 25% -40%.
The reducing pipeline 4 reduces the diameter along the air inlet direction, and the diameter of the outlet of the reducing pipeline 4, the diameter of the first branch pipe 7, the diameter of the second branch pipe 8 and the diameter of the punching pipeline 9 are the same.
The dividing region 5 is equal to the length of 1/6-1/10 punching pipelines 9.
Claims (7)
1. The utility model provides an anti formula muffler for roots's fan air outlet which characterized in that: the device comprises a shell, wherein an air inlet extends out of the shell, an elbow, a reducing pipeline, an inner barrel section, a partition area, an outer barrel section and an air outlet are sequentially arranged in the length direction of the shell behind the air inlet along the air inlet direction of the air inlet, the air inlet is connected with the elbow, the inlet of the reducing pipeline is connected with the outlet of the elbow, the outlet of the reducing pipeline is connected with the inlet of a first section branch pipe of the inner barrel section, the outlet of the first section branch pipe and the inlet of a second section branch pipe are exposed in the shell of the inner barrel section, the outlet of the second section branch pipe and the inlet of a punching pipeline of the outer barrel section are exposed in the partition area, the outlet of the punching pipeline is connected with the air outlet of the shell, a first partition plate for separating the reducing pipeline from the inner barrel section is arranged in the shell at the joint of the outlet of the reducing pipeline and the inlet of the first section branch pipe of the inner barrel section, and a second partition plate for separating the inner barrel section from the partition area is arranged in the shell at the outlet of the second section branch pipe, a third isolation plate for isolating the partition area from the outer cylinder section is arranged in the shell at the inlet of the outer cylinder section punching pipeline, and a fourth isolation plate for isolating the outer cylinder section from the air outlet is arranged in the shell at the outlet of the outer cylinder section punching pipeline.
2. The anti-muffler for a roots blower air outlet according to claim 1, wherein: each isolation plate is an isolation layer formed by extending the outer wall of the current pipeline to the inner wall of the shell.
3. The anti-muffler for a roots blower air outlet according to claim 1, wherein: the shell, the air inlet, the elbow, the reducing pipeline, the inner cylinder section, the partition area, the outer cylinder section, the partition plate and the air outlet are all made of metal products.
4. The anti-muffler for a roots blower air outlet according to claim 1, wherein: the length of the first branch pipe, the length of the second branch pipe and the distance between the outlet of the first branch pipe and the inlet of the second branch pipe are the same.
5. The anti-muffler for a roots blower air outlet according to claim 1, wherein: the wall surface of the punching pipeline is punched, and the aperture ratio is 25% -40%.
6. The anti-muffler for a roots blower air outlet according to claim 1, wherein: the reducing pipeline reduces the diameter along the air inlet direction, and the diameter of the outlet of the reducing pipeline, the diameter of the first branch pipe, the diameter of the second branch pipe and the diameter of the punching pipeline are the same.
7. The anti-muffler for a roots blower air outlet according to claim 1, wherein: the dividing area is equal to the length of 1/6-1/10 punching pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122570549.2U CN215949831U (en) | 2021-10-25 | 2021-10-25 | Anti-type silencer for air outlet of Roots blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122570549.2U CN215949831U (en) | 2021-10-25 | 2021-10-25 | Anti-type silencer for air outlet of Roots blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215949831U true CN215949831U (en) | 2022-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122570549.2U Active CN215949831U (en) | 2021-10-25 | 2021-10-25 | Anti-type silencer for air outlet of Roots blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215949831U (en) |
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2021
- 2021-10-25 CN CN202122570549.2U patent/CN215949831U/en active Active
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