CN2194024Y - High-pressure transmitting damper - Google Patents
High-pressure transmitting damper Download PDFInfo
- Publication number
- CN2194024Y CN2194024Y CN 94215828 CN94215828U CN2194024Y CN 2194024 Y CN2194024 Y CN 2194024Y CN 94215828 CN94215828 CN 94215828 CN 94215828 U CN94215828 U CN 94215828U CN 2194024 Y CN2194024 Y CN 2194024Y
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- CN
- China
- Prior art keywords
- utility
- board
- model
- phi
- noise
- 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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- Exhaust Silencers (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model discloses a high-pressure discharging silencer which is composed of a casing board, a middle partition board, an annular board, a connecting pipe, and a flange. The utility model is characterized in that the annular board is fixedly provided with an extra-fine glass-wool felt sound-absorbing board and a perforated board whose hole diameter is phi 3 mm-phi 6 mm; the perforated percentage of the perforated board is 15%-25%; the periphery of the discharging mouth of the silencer is provided with a plurality of flow distribution boards along the radial direction; the top end of the discharging mouth is provided with a sound-absorbing top cover which is composed of the extra-fine glass-wool felt sound-absorbing board and the perforated board whose hole diameter is phi 3 mm-phi 6 mm. The utility model has the advantages that the utility model adopts the principle of the comprehensive treatment of the impedance and the hollow chamber; the utility model has wider frequency band eliminating kinetic noise; the utility model has best effect on the middle and high frequency noise. The utility model is suitable for eliminating the noise discharged by the iron-making furnace.
Description
The utility model belongs to the airflow muffler or the exhaust apparatus of engine, particularly a kind of sound suppressor of steelmaking furnace pressure-air discharging.
At present, eliminate the high pressure air power noise, multiple way is arranged, the labyrinth type sound suppressor is one of them.The labyrinth type sound suppressor is to utilize labyrinth change airflow direction along separate routes, produce the phase impact, reaches the noise elimination effect.Existing labyrinth type sound suppressor, because it is not noise countermeasure is single,, good enough for the noise elimination effect of some high gas speed, very noisy so the noise elimination effect is limited.
The purpose of this utility model is that improvement labyrinth type sound suppressor is provided with super glass wool acoustic board and noise elimination perforated plate on the plate along separate routes in the labyrinth, at the sound suppressor outlet section spreader plate is set, to improve the noise removing to the high-pressure discharge gas of hyperbar, big flow.
High-pressure discharge sound suppressor of the present utility model is made up of Shell Plate, median septum, annular slab, adapter, flange, it is characterized in that, is fixed with the perforated plate of extra-fine glass-wool felt acoustic board and aperture φ 3～6mm on annular slab, percentage of perforation 15～25%; At sound suppressor floss hole periphery, be provided with the multi-disc spreader plate along the radiation direction, be provided with the sound absorption top cover of the perforated plate composition of extra-fine glass-wool felt acoustic board and aperture φ 3～6mm on the floss hole top.
The using method of high-pressure discharge sound suppressor of the present utility model is, the high-pressure discharge gas of hyperbar, big flow enters from the bottom of sound suppressor, air-flow is through the S shape tortuous labyrinth shunt of four layers of annular slab, arrive the floss hole position, noise major part in the gas is absorbed by extra-fine glass-wool felt acoustic board and perforated plate and decays, discharge sound suppressor by the gap of sound suppressor floss hole periphery multi-disc spreader plate again, reach the purpose of noise reduction.
The advantage of high-pressure discharge sound suppressor of the present utility model is that the principle of employing impedance and cavity comprehensive regulation noise makes pressure-air pass through the labyrinth along separate routes, eliminates its dynamic property noise; Eliminate the frequency band broad of noise, the best results of special centering, high frequency noise.Be applicable to the elimination of blast furnace displacement noise.
Below in conjunction with drawings and Examples, the utility model is further described.
Fig. 1 is the organigram of high-pressure discharge sound suppressor
As seen from the figure, the high-pressure discharge sound suppressor is made up of Shell Plate 1, median septum 9, annular slab 4, adapter 6, flange 7, it is characterized in that being fixed with extra-fine glass-wool felt acoustic board 2 and aperture on annular slab is the perforated plate 3 of φ 3～6mm, percentage of perforation 15～25%; At sound suppressor floss hole periphery, be provided with multi-disc spreader plate 5 along the radiation direction, the floss hole top is provided with sound absorption top cover 8.
Claims (1)
1, a kind of high-pressure discharge sound suppressor is made up of Shell Plate, median septum, annular slab, adapter, flange, it is characterized in that, is fixed with the perforated plate of extra-fine glass-wool felt acoustic board and aperture Φ 3～6mm on annular slab, percentage of perforation 15～25%; At sound suppressor floss hole periphery, be provided with the multi-disc spreader plate along the radiation direction, be provided with the sound absorption top cover of the perforated plate composition of extra-fine glass-wool felt acoustic board and aperture Φ 3～6mm on the floss hole top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94215828 CN2194024Y (en) | 1994-07-01 | 1994-07-01 | High-pressure transmitting damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94215828 CN2194024Y (en) | 1994-07-01 | 1994-07-01 | High-pressure transmitting damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2194024Y true CN2194024Y (en) | 1995-04-05 |
Family
ID=33831708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94215828 Expired - Fee Related CN2194024Y (en) | 1994-07-01 | 1994-07-01 | High-pressure transmitting damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2194024Y (en) |
-
1994
- 1994-07-01 CN CN 94215828 patent/CN2194024Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |