CN86204649U - Throttle muffler - Google Patents
Throttle muffler Download PDFInfo
- Publication number
- CN86204649U CN86204649U CN 86204649 CN86204649U CN86204649U CN 86204649 U CN86204649 U CN 86204649U CN 86204649 CN86204649 CN 86204649 CN 86204649 U CN86204649 U CN 86204649U CN 86204649 U CN86204649 U CN 86204649U
- Authority
- CN
- China
- Prior art keywords
- noise elimination
- silencing apparatus
- gas
- exhaust
- throttle
- 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.)
- Withdrawn
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Abstract
The utility model relates to a throttle muffler which is used for a gas reversing valve exhaust passage, and is composed of a case body (1), a cone shape throttle turning body (7), an interfere cavity (8), a porous sound absorption material (9), an exhaust vent body (4) and a regulating screw (6). Gas exhausted from the reversing valve enters the muffler interfere cavity (8) to form resistance noise elimination. The gas forms resistance noise elimination through the porous absorption material. Finally, the gas is discharged from an exhaust small vent (5) to form small vent spray noise elimination. Through three stages of noise elimination, effect of noise elimination reaches above 25dB (A) and pressure resistance and damage is smaller. The throttle is controlled by the opening of the cone shape throttle turning body (7) and a gas inlet (3). Product is made of plastic, such as injection molding. Manufacturing cost only occupies tenth of a copper product.
Description
The utility model is the throttling silencing apparatus of gas commutating valve exhaust passageway, and it also can be used for the exhaust throttle of other occasions and eliminates the noise.
The throttling silencing apparatus of existing selector valve exhaust passageway is the dissipative muffler of being made by copper ball sintering cover.The selector valve exhaust is handled through this silencing apparatus, and the noise elimination effect is at 20dB(A) about.This throttling silencing apparatus copper material manufacturing, the processing technology complexity, manufacture cost is higher.
The purpose of this utility model is that the noise elimination effect reaches 25dB(A with after the selector valve pump-down process) more than.Simultaneously, the plastics manufacturing of throttling silencing apparatus, manufacture cost can be reduced to present below 1/10th of dissipative muffler of copper ball sintering cover.By architecture advances, very remarkable to mould for the copper economic benefit.
The utility model is finished as follows: the selector valve exhaust airstream enters interference cavity by throttling silencing apparatus suction port, air-flow is shunted to device guiding through adjustable tapered joint rheology at suction port, because the tapered joint rheology meets at the interference cavity wall to the elongation line of voxel line, air-flow just rushes at the interference cavity wall.Air-flow collides in interference cavity mutually through the reflection of interference cavity wall, forms reactive muffling.Then, gas as foamed plastics or super glass wool, because this material has viscous resistance to gas, forms resistance noise reduction by soft sound-absorbing porous material.At last, when gas is discharged through exhaust hole, form micropore jet and eliminate the noise.Air-flow is discharged after three grades of noise eliminations in the throttling silencing apparatus.
The utility model is owing to adopt three grades of noise eliminations, and the noise elimination effect reduces noise 5dB(A than present copper ball sintering cover dissipative muffler) more than.As bleed pressure is 0.005Pa, when inside nominal diameter is 8mm, can be with the selector valve exhaust noise by 100dB(A) more than drop to 75dB(A) below.And its pressure drag damage is littler than present copper ball sintering cover dissipative muffler.The utility model plastics manufacturing as injection molded, is no more than 1/10th of original copper ball sintering cover dissipative muffler with the cost of moulding for the throttling silencing apparatus of copper production.
Concrete structure of the present utility model is provided by following drawings and Examples.
Accompanying drawing is the structure longitudinal sectional drawing of this throttling silencing apparatus.
As can be seen, save the structure of silencing apparatus and form to body (7), interference cavity (8), sound-absorbing porous material (9), exhaust hole body (4) and adjusting screw rod (6) from the figure by housing (1), tapered joint rheology.Housing (1) is provided with joint (2) and the silencing apparatus suction port (3) that connects with the selector valve exhaust port, the rheology of adjusting screw rod (6) control tapered joint is controlled the movement velocity of pneumatic apparatus to the aperture of body (7) with suction port (3) by the throttling of aperture.Be furnished with intensive exhaust hole (5) on the hole body (4).Exhaust hole (5) diameter is 1～1.2mm, and pitch-row is 3～4mm, and the slenderness ratio of exhaust hole (5) is not less than 8.Like this, after gas is discharged from aperture (5), just can not produce attraction immediately and form single big spray.When air-flow formed a big spray, the regeneration noise was fainter.Exhaust hole (5) cross-section area sum is near suction port (3) cross-section area.Like this, its pressure drag decreases just less.
Claims (3)
1, a kind ofly is used for the throttling silencing apparatus that the gas commutating valve exhaust passageway is made up of flow regulator and noise elimination member, it is characterized in that Flow-rate adjustment is to the aperture of body (7) with suction port (3) by the rheology of control tapered joint, and the tapered joint rheology meets on the wall of interference cavity (8) to the elongation line of the plain line of body (7) conical surface, in the end of interference cavity (8) sound-absorbing porous material (9) is arranged, be provided with exhaust hole (5) on its hole body that blocks (4), the throttling silencing apparatus is made with plastics.
2, throttling silencing apparatus according to claim 1, it is characterized in that the exhaust hole (5) on the exhaust hole body (4), its aperture is 1～1.2mm, and pitch-row is 3～4mm, hole cross-section area sum is near silencing apparatus suction port cross-section area, and the slenderness ratio of exhaust hole (5) is not less than 8.
3, throttling silencing apparatus according to claim 1 is characterized in that sound-absorbing porous material adopts foamed plastics or super glass wool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86204649 CN86204649U (en) | 1986-09-16 | 1986-09-16 | Throttle muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86204649 CN86204649U (en) | 1986-09-16 | 1986-09-16 | Throttle muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86204649U true CN86204649U (en) | 1987-09-12 |
Family
ID=4807667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86204649 Withdrawn CN86204649U (en) | 1986-09-16 | 1986-09-16 | Throttle muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86204649U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387872C (en) * | 2001-05-24 | 2008-05-14 | 株式会社不二工机 | Electric valve |
| CN102032372A (en) * | 2010-12-20 | 2011-04-27 | 福田雷沃国际重工股份有限公司 | Pressure relief and noise reduction safety valve |
| CN108082680A (en) * | 2017-10-09 | 2018-05-29 | 佛山赛唯莱特智能设备有限公司 | A kind of modified building equipment |
| CN108082696A (en) * | 2017-10-09 | 2018-05-29 | 佛山智敏电子科技有限公司 | A kind of improved electric cable device |
| CN108100496A (en) * | 2017-10-09 | 2018-06-01 | 佛山拓达科技有限公司 | A kind of improved-type material storage device |
| CN108100435A (en) * | 2017-10-09 | 2018-06-01 | 佛山赛唯莱特智能设备有限公司 | A kind of novel house Architectural Equipment |
| CN108095477A (en) * | 2017-10-09 | 2018-06-01 | 广州天品科技有限公司 | A kind of modified cup structure |
| CN108100498A (en) * | 2017-10-09 | 2018-06-01 | 佛山拓达科技有限公司 | A kind of modified material storage device |
| CN108128560A (en) * | 2017-10-09 | 2018-06-08 | 佛山拓达科技有限公司 | A kind of novel material storage device |
| CN108143229A (en) * | 2017-10-09 | 2018-06-12 | 泉州市永工艺品研究有限公司 | A kind of modified mailbox structure |
| CN108283423A (en) * | 2017-10-09 | 2018-07-17 | 泉州市永工艺品研究有限公司 | A kind of novel mailbox structure |
| CN110770511A (en) * | 2017-04-14 | 2020-02-07 | 弗劳恩霍夫应用研究促进协会 | Split muffler assembly with sound absorbing end sides |
-
1986
- 1986-09-16 CN CN 86204649 patent/CN86204649U/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387872C (en) * | 2001-05-24 | 2008-05-14 | 株式会社不二工机 | Electric valve |
| CN102032372A (en) * | 2010-12-20 | 2011-04-27 | 福田雷沃国际重工股份有限公司 | Pressure relief and noise reduction safety valve |
| CN110770511A (en) * | 2017-04-14 | 2020-02-07 | 弗劳恩霍夫应用研究促进协会 | Split muffler assembly with sound absorbing end sides |
| CN108082680A (en) * | 2017-10-09 | 2018-05-29 | 佛山赛唯莱特智能设备有限公司 | A kind of modified building equipment |
| CN108082696A (en) * | 2017-10-09 | 2018-05-29 | 佛山智敏电子科技有限公司 | A kind of improved electric cable device |
| CN108100496A (en) * | 2017-10-09 | 2018-06-01 | 佛山拓达科技有限公司 | A kind of improved-type material storage device |
| CN108100435A (en) * | 2017-10-09 | 2018-06-01 | 佛山赛唯莱特智能设备有限公司 | A kind of novel house Architectural Equipment |
| CN108095477A (en) * | 2017-10-09 | 2018-06-01 | 广州天品科技有限公司 | A kind of modified cup structure |
| CN108100498A (en) * | 2017-10-09 | 2018-06-01 | 佛山拓达科技有限公司 | A kind of modified material storage device |
| CN108128560A (en) * | 2017-10-09 | 2018-06-08 | 佛山拓达科技有限公司 | A kind of novel material storage device |
| CN108143229A (en) * | 2017-10-09 | 2018-06-12 | 泉州市永工艺品研究有限公司 | A kind of modified mailbox structure |
| CN108283423A (en) * | 2017-10-09 | 2018-07-17 | 泉州市永工艺品研究有限公司 | A kind of novel mailbox structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| 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 |