CN100424325C - Silencer - Google Patents
Silencer Download PDFInfo
- Publication number
- CN100424325C CN100424325C CNB2006100972969A CN200610097296A CN100424325C CN 100424325 C CN100424325 C CN 100424325C CN B2006100972969 A CNB2006100972969 A CN B2006100972969A CN 200610097296 A CN200610097296 A CN 200610097296A CN 100424325 C CN100424325 C CN 100424325C
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- Prior art keywords
- pipe
- buffer cell
- exhaust
- outlet pipe
- clapboard
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- Pipe Accessories (AREA)
Abstract
The silencer for pneumatic machinery includes a casing, a low cover with air inlet pipe, an upper cover with air exhaust pipe and a bent pipe, as well as an upper partition board and a lower partition board to separate the cavity inside the casing into an inlet buffering room, a middle buffering room and an exhaust buffering room. The lower partition board has through hole; the bent pipe is fixed to the lower partition board and has inlet communicated to the inlet buffering room and exhaust hole in the pipe body inside the middle buffering room; and the upper partition board has through hole to communicate the middle buffering room and the exhaust buffering room. The present invention has high silencing effect, less jamming, low power consumption, simple structure and low manufacture cost.
Description
Technical field
The present invention relates to a kind of silencing apparatus of eliminating exhaust pulses kinetic energy.Being particularly useful for pressurized air is the pneumatic equipment of power, for example the mining pneumatic submersible pump.
Background technique
The silencing apparatus that existing mining pneumatic equipment is used generally adopts aperture group exhausting silencer technology or expansion chamber noise elimination technique, or adopts resistive and the compound noise-cancelling theory work of resistance.This class silencing apparatus all can not reach the requirement of domestic and international related standards at the abominable scene of operating modes such as mine, down-hole, the noise elimination weak effect, for example, U.S.'s mine safety and healthy office " new noise control " standard in issuing and implementation on September 13rd, 2000, with regard to regulation the mine contact noise is controlled at below 85 decibels, and existing silencing apparatus can't satisfy, and this has badly influenced site operation personnel's physical and mental health; In addition, easily produce the blocking phenomenon of freezing when existing silencing apparatus is worked, power loss is big.
Summary of the invention
The object of the present invention is to provide a kind of silencing apparatus of the icing blocking phenomenon of effective and difficult generation of eliminating the noise.
In order to achieve the above object, first kind of technological scheme of the present invention is: a kind of silencing apparatus, comprise shell, bring the lower cover of tracheae into, the loam cake and the bend pipe of band outlet pipe, also have upper clapboard and lower clapboard, upper clapboard and lower clapboard are with shell, the inner chamber that loam cake and lower cover constitute is separated into the air inlet buffer cell, intermediate buffering chamber and exhaust buffer cell, have through hole on the lower clapboard, the pin of bend pipe is fixed in the through hole, the suction port of pin is communicated with the air inlet buffer cell, the pipe shaft of bend pipe is positioned at the intermediate buffering chamber and pipe shaft has exhaust port, has the through hole that connects intermediate buffering chamber and exhaust buffer cell on the upper clapboard.
In order to achieve the above object, second kind of technological scheme of the present invention is: a kind of silencing apparatus, comprise shell, bring the lower cover of tracheae into, the loam cake and the bend pipe of band outlet pipe, also have upper clapboard and lower clapboard, upper clapboard and lower clapboard are with shell, the inner chamber that loam cake and lower cover constitute is separated into the air inlet buffer cell, intermediate buffering chamber and exhaust buffer cell, have through hole on the lower clapboard, bend pipe has at least a pair of, a pin of each bend pipe is fixed in the through hole, it is indoor that another pin is positioned at intermediate buffering, the suction port of bend pipe is communicated with the air inlet buffer cell, and the air outlet of every pair of bend pipe is relative, has the through hole that connects intermediate buffering chamber and exhaust buffer cell on the upper clapboard.
After adopting above-mentioned first kind of structure, owing to have through hole on the lower clapboard, the pin of bend pipe is fixed in the through hole, the suction port of pin is communicated with the air inlet buffer cell, the pipe shaft of bend pipe is positioned at the intermediate buffering chamber and pipe shaft has exhaust port, have the through hole that connects intermediate buffering chamber and exhaust buffer cell on the upper clapboard, like this, will enter bend pipe from the bend pipe two ends by positive guide exhaust sound air-flow, in bend pipe, produce the basic opposite direction air-flow that equates, this opposite direction air-flow clashes, thereby makes noise air-flow frequency and amplitude cancel each other significantly and reduce, and it is effective therefore to eliminate the noise; Also owing to adopted structures such as air inlet buffer cell, bend pipe, intermediate buffering chamber and exhaust buffer cell, cross-sectional flow area has overcome insoluble in the past icing blocking phenomenon all greater than silencing apparatus suction tude sectional area step by step, and power loss is very little; In addition the present invention also have simple in structure, the characteristics of low cost of manufacture.
After adopting above-mentioned second kind of structure, owing to have through hole on the lower clapboard, bend pipe has at least a pair of, a pin of each bend pipe is fixed in the through hole, it is indoor that another pin is positioned at intermediate buffering, the suction port of bend pipe is communicated with the air inlet buffer cell, the air outlet of every pair of bend pipe is relative, have the through hole that connects intermediate buffering chamber and exhaust buffer cell on the upper clapboard, like this, will positive guide exhaust sound air-flow enter bend pipe from the suction port of every pair of bend pipe, in every pair of bend pipe, produce the basic air-flow that equates, this air-flow clashes in the air outlet of every pair of bend pipe, thereby makes noise air-flow frequency and amplitude cancel each other significantly and reduce, and it is effective therefore to eliminate the noise; Also owing to adopted structures such as air inlet buffer cell, bend pipe, intermediate buffering chamber and exhaust buffer cell, cross-sectional flow area has overcome insoluble in the past icing blocking phenomenon all greater than silencing apparatus suction tude sectional area step by step, and power loss is very little.
Description of drawings
Fig. 1 is first embodiment's of a silencing apparatus of the present invention structural representation;
Fig. 2 is the sectional view of Fig. 1 along the A-A line;
Fig. 3 is the sectional view of Fig. 1 along the B-B line;
Fig. 4 is the structural representation of the upper clapboard among the present invention;
Fig. 5 is the structural representation of the outlet pipe shrouding among the present invention;
Fig. 6 is the bend pipe in the second embodiment of the invention and the assembling stereogram of lower clapboard;
Fig. 7 is that the C of Fig. 6 is to partial schematic diagram;
Fig. 8 is the structural representation of third embodiment of the invention.
Embodiment
The present invention is further detailed explanation below in conjunction with embodiment that accompanying drawing provides.
As Fig. 1,2,3, shown in 4, first embodiment of the invention, a kind of silencing apparatus, comprise shell 6, bring the lower cover 8 of tracheae 9 into, the loam cake 2 and the bend pipe 5 of band outlet pipe 1, also have upper clapboard 4 and lower clapboard 7, upper clapboard 4 and lower clapboard 7 are with shell 6, the inner chamber that loam cake 2 and lower cover 8 constitute is separated into air inlet buffer cell 10, intermediate buffering chamber 11 and exhaust buffer cell 12, have through hole 7-1 on the lower clapboard 7, the pin 5-1 of bend pipe 5 is fixed in through hole 7-1 place, the suction port 5-2 of pin 5-1 is communicated with air inlet buffer cell 10, the pipe shaft of bend pipe 5 is positioned at intermediate buffering chamber 11 and pipe shaft has exhaust port 5-3, has the through hole 4-1 that connects intermediate buffering chamber 11 and exhaust buffer cell 12 on the upper clapboard 4.
As shown in Figure 1, 2, bend pipe 5 is U type pipes, and U type Guan Yousan is the stack intercross arrangement on lower clapboard 7, and the exhaust port 5-3 of U type pipe is positioned at the arc top bit downside of U type pipe and aperture down.Bend pipe 5 also can be the bend pipe of arc pipe or other form.U type pipe quantity is not limited to three, can adjust according to exhaust sound air-flow size.Several U type pipes also can be on lower clapboard 7 and are arranged in parallel.
As shown in Figure 1, 2, 3, in order to increase the colliding beam accelerator meeting of noise air-flow, further improve the noise elimination effect, lower clapboard 7 middle parts have the arc shaped surface 7-2 to upper process.
Shown in Fig. 1,5, the inlet end of outlet pipe 1 is provided with outlet pipe shrouding 3, has the exhaust port 3-1 that connects exhaust buffer cell 12 and outlet pipe 1 inner chamber on the outlet pipe shrouding 3.
As shown in Figure 1, outlet pipe 1 import department has one section pipe shaft to stretch in exhaust buffer cell 12, has the exhaust port 1-1 of some perforation exhaust buffer cells 12 and outlet pipe 1 inner chamber on the tube wall of this section pipe shaft.
Shown in Fig. 6,7, be the bend pipe 5 in the second embodiment of the invention and the assembling stereogram of lower clapboard 7, bend pipe 5 is to be crossed as one by two U type pipes, is the X-shaped shape, the exhaust port 5-3 of bend pipe 5 is positioned at infall downside and aperture down.
As shown in Figure 8, it is third embodiment of the invention, a kind of silencing apparatus, comprise shell 6, bring the lower cover 8 of tracheae 9 into, the loam cake 2 and the bend pipe 5 of band outlet pipe 1, also have upper clapboard 4 and lower clapboard 7, upper clapboard 4 and lower clapboard 7 are with shell 6, the inner chamber that loam cake 2 and lower cover 8 constitute is separated into air inlet buffer cell 10, intermediate buffering chamber 11 and exhaust buffer cell 12, have through hole 7-1 on the lower clapboard 7, bend pipe 5 has at least a pair of, a pin 5-1 of each bend pipe 5 is fixed in through hole 7-1 place, another pin 5-1 is positioned at intermediate buffering chamber 11, the suction port 5-2 of bend pipe 5 is communicated with air inlet buffer cell 10, the air outlet 5-4 of every pair of bend pipe 5 is relative, has the through hole 4-1 that connects intermediate buffering chamber 11 and exhaust buffer cell 12 on the upper clapboard 4.
As shown in Figure 8, lower clapboard 7 middle parts have the arc shaped surface 7-2 to upper process.
As shown in Figure 8, the inlet end of outlet pipe 1 is provided with outlet pipe shrouding 3, has the exhaust port 3-1 that connects exhaust buffer cell 12 and outlet pipe 1 inner chamber on the outlet pipe shrouding 3.
As shown in Figure 8, outlet pipe 1 import department has one section pipe shaft to stretch in exhaust buffer cell 12, has the exhaust port 1-1 of some perforation exhaust buffer cells 12 and outlet pipe 1 inner chamber on the tube wall of this section pipe shaft.
As shown in Figure 1, when silencing apparatus of the present invention is worked, the exhaust sound air-flow enters the arc shaped surface 7-2 that air inlet buffer cell 10 impacts lower clapboard 7 through suction tude 9, when returning, air-flow causes airflow counter-collision, the air-flow of diffusion is in suction port 5-2 enters U type pipe, produce the airflow counter-collision that opposite direction equates substantially, make noise air-flow frequency and amplitude cancel each other significantly and reduce; Then, air-flow spreads downwards, expands from the exhaust port 5-3 of U type pipe, produces mutual chiasma interference in intermediate buffering chamber 11 again, collision once more, and through the arc shaped surface 7-2 of lower clapboard 7 reflection, flowed energy is absorbed by shell 6 and decays; Then, air-flow returns upwards and enter exhaust buffer cell 12 from the through hole 4-1 of upper clapboard 4, enter outlet pipe 1 inner chamber through the exhaust port 3-1 of outlet pipe shrouding 3 and the plurality of rows pore 1-1 of outlet pipe 1, do not have pressure and drain into evenly in the atmosphere, the present invention can make noise reduce to below 75 decibels.
The present invention is particularly useful for on the positive displacement of compressed-air power and turbine-type two big class pneumatic motors and the corollary equipment.As rock drill, blade type pneumatic sump pump, turbine-type turbine pneumatic sump pump, and various pneumatic tool.Also can be used on the various motor vehicle.
Claims (10)
1. silencing apparatus comprises shell (6), brings the lower cover (8) of tracheae (9) into, the loam cake (2) and the bend pipe (5) of band outlet pipe (1), it is characterized in that:
A, also have upper clapboard (4) and a lower clapboard (7), upper clapboard (4) and lower clapboard (7) are separated into air inlet buffer cell (10), intermediate buffering chamber (11) and exhaust buffer cell (12) with the inner chamber that shell (6), loam cake (2) and lower cover (8) constitute,
Have through hole (7-1) on b, the lower clapboard (7), the pin (5-1) of bend pipe (5) is fixed in through hole (7-1) to be located, the suction port (5-2) of pin (5-1) is communicated with air inlet buffer cell (10), and the pipe shaft of bend pipe (5) is positioned at intermediate buffering chamber (11) and pipe shaft has exhaust port (5-3)
Have the through hole (4-1) that connects intermediate buffering chamber (11) and exhaust buffer cell (12) on c, the upper clapboard (4).
2. silencing apparatus according to claim 1 is characterized in that: bend pipe (5) is a U type pipe, and U type Guan Yousan is the stack intercross arrangement on lower clapboard (7), and the exhaust port (5-3) of U type pipe is positioned at the arc top bit downside of U type pipe and aperture down.
3. silencing apparatus according to claim 2 is characterized in that: lower clapboard (7) middle part has the arc shaped surface (7-2) to upper process.
4. according to claim 1 or 2 or 3 described silencing apparatuss, it is characterized in that: the inlet end of outlet pipe (1) is provided with outlet pipe shrouding (3), has the exhaust port (3-1) that connects exhaust buffer cell (12) and outlet pipe (1) inner chamber on the outlet pipe shrouding (3).
5. silencing apparatus according to claim 4, it is characterized in that: outlet pipe (1) import department has one section pipe shaft to stretch in exhaust buffer cell (12), has the exhaust port (1-1) of some perforation exhaust buffer cells (12) and outlet pipe (1) inner chamber on the tube wall of this section pipe shaft.
6. silencing apparatus according to claim 1 is characterized in that: bend pipe (5) is to be crossed as one by two U type pipes, is the X-shaped shape, and the exhaust port (5-3) of bend pipe (5) is positioned at infall downside and aperture down.
7. silencing apparatus comprises shell (6), brings the lower cover (8) of tracheae (9) into, the loam cake (2) and the bend pipe (5) of band outlet pipe (1), it is characterized in that:
A, also have upper clapboard (4) and a lower clapboard (7), upper clapboard (4) and lower clapboard (7) are separated into air inlet buffer cell (10), intermediate buffering chamber (11) and exhaust buffer cell (12) with the inner chamber that shell (6), loam cake (2) and lower cover (8) constitute,
Have through hole (7-1) on b, the lower clapboard (7), bend pipe (5) has at least a pair of, a pin (5-1) of each bend pipe (5) is fixed in through hole (7-1) to be located, another pin (5-1) is positioned at intermediate buffering chamber (11), the suction port (5-2) of bend pipe (5) is communicated with air inlet buffer cell (10), the air outlet (5-4) of every pair of bend pipe (5) is relative
Have the through hole (4-1) that connects intermediate buffering chamber (11) and exhaust buffer cell (12) on c, the upper clapboard (4).
8. silencing apparatus according to claim 7 is characterized in that: lower clapboard (7) middle part has the arc shaped surface (7-2) to upper process.
9. according to claim 7 or 8 described silencing apparatuss, it is characterized in that: the inlet end of outlet pipe (1) is provided with outlet pipe shrouding (3), has the exhaust port (3-1) that connects exhaust buffer cell (12) and outlet pipe (1) inner chamber on the outlet pipe shrouding (3).
10. silencing apparatus according to claim 9, it is characterized in that: outlet pipe (1) import department has one section pipe shaft to stretch in exhaust buffer cell (12), has the exhaust port (1-1) of some perforation exhaust buffer cells (12) and outlet pipe (1) inner chamber on the tube wall of this section pipe shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100972969A CN100424325C (en) | 2006-10-30 | 2006-10-30 | Silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100972969A CN100424325C (en) | 2006-10-30 | 2006-10-30 | Silencer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1944971A CN1944971A (en) | 2007-04-11 |
| CN100424325C true CN100424325C (en) | 2008-10-08 |
Family
ID=38044540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100972969A Expired - Fee Related CN100424325C (en) | 2006-10-30 | 2006-10-30 | Silencer |
Country Status (1)
| Country | Link |
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| CN (1) | CN100424325C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182535B (en) * | 2011-04-26 | 2012-10-10 | 常州风特安泵业有限公司 | Integrated noiseless smoke control device of diesel engine |
| CN103953418B (en) * | 2014-05-16 | 2016-05-11 | 苏州工业园区职业技术学院 | Silencer of a kind of multistage composite noise reduction and preparation method thereof |
| CN105888801B (en) * | 2016-05-16 | 2018-07-24 | 北京汽车股份有限公司 | Exhaust apparatus for vehicle |
| CN107288878B (en) | 2017-08-18 | 2020-04-10 | 珠海格力电器股份有限公司 | Silencer and compressor |
| CN112302907B (en) * | 2020-11-07 | 2022-04-01 | 嘉兴市双圆机械制造股份有限公司 | Silencing bag for air-conditioning compressor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2674121Y (en) * | 2003-06-26 | 2005-01-26 | 中国第一汽车集团公司 | Exhaust noise silencer for automobile engine |
| CN1680685A (en) * | 2004-04-07 | 2005-10-12 | 本田技研工业株式会社 | Engine exhaust muffler with exhaust emission control function |
| CN200961499Y (en) * | 2006-10-30 | 2007-10-17 | 常州风特安泵业有限公司 | Silencer |
-
2006
- 2006-10-30 CN CNB2006100972969A patent/CN100424325C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2674121Y (en) * | 2003-06-26 | 2005-01-26 | 中国第一汽车集团公司 | Exhaust noise silencer for automobile engine |
| CN1680685A (en) * | 2004-04-07 | 2005-10-12 | 本田技研工业株式会社 | Engine exhaust muffler with exhaust emission control function |
| CN200961499Y (en) * | 2006-10-30 | 2007-10-17 | 常州风特安泵业有限公司 | Silencer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1944971A (en) | 2007-04-11 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 Termination date: 20131030 |