CN102465745A - Silencer - Google Patents

Silencer Download PDF

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Publication number
CN102465745A
CN102465745A CN2010105519045A CN201010551904A CN102465745A CN 102465745 A CN102465745 A CN 102465745A CN 2010105519045 A CN2010105519045 A CN 2010105519045A CN 201010551904 A CN201010551904 A CN 201010551904A CN 102465745 A CN102465745 A CN 102465745A
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CN
China
Prior art keywords
pipe
outer tube
central diaphragm
interior pipe
hole
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.)
Granted
Application number
CN2010105519045A
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Chinese (zh)
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CN102465745B (en
Inventor
马建洪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUXI HUDAI XINGHONG QIYUAN PURIFICATION EQUIPMENT FACTORY
Original Assignee
WUXI HUDAI XINGHONG QIYUAN PURIFICATION EQUIPMENT FACTORY
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Filing date
Publication date
Application filed by WUXI HUDAI XINGHONG QIYUAN PURIFICATION EQUIPMENT FACTORY filed Critical WUXI HUDAI XINGHONG QIYUAN PURIFICATION EQUIPMENT FACTORY
Priority to CN 201010551904 priority Critical patent/CN102465745B/en
Publication of CN102465745A publication Critical patent/CN102465745A/en
Application granted granted Critical
Publication of CN102465745B publication Critical patent/CN102465745B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention discloses a silencer. The silencer comprises an outer pipe and an inner pipe, both the outer pipe and the inner pipe are conical pipes with small tops and big bottoms, and a space is reserved between the outer pipe and the inner pipe which have equal taper. A middle partition plate is arranged on the inner side of the upper part of the outer pipe, a space is reserved between the middle partition plate and the upper end of the outer pipe, four sides of the middle partition plate are connected with the inner wall of the outer pipe, the center of the middle partition plate is provided with a hole, the diameter of the hole is equal to that of the upper end of the inner pipe, and the upper end of the inner pipe is connected with four sides of the hole in the middle partition plate. The silencer is characterized in that: the short conical pipe with the small top and the big bottom is arranged in the inner pipe, the taper of the short conical pipe is greater than that of the inner pipe, and the lower end of the short conical pipe is connected with the inner wall of the inner pipe in the circumferential direction. The silencer has a good silencing effect. The silencer is suitable for reducing noise generated at an intake/exhaust port of an air compressor, an exhaust port of an automobile engine, an exhaust port of a factory and the like.

Description

A kind of baffler
Technical field
The present invention relates to a kind of silencer.Specifically, be the baffler that is used for reducing the noise that relief openings such as air compressor import/exhaust mouth, air vent of automobile engine and factory's relief opening produce.
Background technique
As everyone knows, the exhaust ports of its relief opening and some factories all can produce noise when air compressor its import/exhaust mouth place of when work, motor car engine work.For eliminating these noises, baffler all is installed in the suction port or the exhaust ports of these equipment or occasion.Said baffler contains outer tube and interior pipe, and said outer tube and interior pipe are up-small and down-big conical tube and the tapering of the two equates.There is central diaphragm the inboard on outer tube top, and central diaphragm and outer tube leave spacing between the upper end, link to each other with outer tube wall around the central diaphragm, and the central diaphragm center is porose, and the diameter in this hole equates with interior pipe upper end diameter and interior pipe upper end links to each other with hole on the central diaphragm all around.Under the installment state, the outer tube upper end links to each other with the suction port or the relief opening of relevant device or occasion.During work, from outer tube upper end get into the gas of outer tube noise earlier by central diaphragm absorb the back get in pipe, further absorb by the tube wall of interior pipe, carry out sound insulation through the spacing between interior pipe and outer tube again, realize reducing the purpose of noise.Because above-mentioned baffler only is made up of the central diaphragm of outer tube, interior pipe and people's outer tube upper inner, during work, can only realize the reduction of noise through the sound insulation of the spacing between the absorption of central diaphragm and inner pipe wall, interior pipe and outer tube, erasure effect is relatively poor.
Summary of the invention
The problem that the present invention will solve provides a kind of baffler.This baffler, good muffling effect.
For addressing the above problem, take following technological scheme:
Baffler of the present invention comprises outer tube and interior pipe, and said outer tube and interior pipe are up-small and down-big conical tube, leaves spacing between outer tube and interior pipe and the tapering of the two equates.There is central diaphragm the inboard on outer tube top, and central diaphragm and outer tube leave spacing between the upper end, link to each other with outer tube wall around the central diaphragm, and the central diaphragm center is porose, and the diameter in this hole equates with interior pipe upper end diameter and interior pipe upper end links to each other with hole on the central diaphragm all around.In the pipe up-small and down-big short Taper Pipe is arranged in being characterized in, the tapering of this short Taper Pipe is greater than the tapering of interior pipe, and its lower end circumferentially links to each other with the inwall of interior pipe.
Further improvement project of the present invention is, up big and down small horn mouth is arranged on the central diaphragm, around the equal diameters in the hole on horn mouth lower end diameter and the central diaphragm and the horn mouth lower end with central diaphragm on the hole around link together.
Wherein, bell-mouthed upper end diameter >=outer tube upper end diameter.
Said short Taper Pipe has two at least, and the inner chamber above-below direction of the interior pipe in short Taper Pipe edge is uniformly distributed with.That of the top lacked between Taper Pipe upper end and central diaphragm, all left spacing between adjacent two short Taper Pipes.
Further improvement project of the present invention is, the outer tube upper end have mouthpiece, said mouthpiece be up-small and down-big conical tube and its tapering greater than outer tube, the mouthpiece lower end diameter equates with the outer tube upper end diameter and the two links together.
Further improvement project of the present invention is that the mouthpiece upper end has flange.
Take such scheme, have the following advantages:
Can find out that by such scheme owing to be provided with up-small and down-big short Taper Pipe in the interior pipe, this weak point Taper Pipe can be provided with multistage as required.During work,, increased multistage short Taper Pipe again except the sound insulation through the spacing between the absorption of original central diaphragm and inner pipe wall, interior pipe and outer tube realizes reducing the noise.Like this, the noise radiation in the gas in getting in the pipe to the inside and outside wall of multistage short Taper Pipe after, further absorb by short Taper Pipe, make the noise in the gas more and more littler, thereby improved erasure effect greatly.
Description of drawings
Fig. 1 is a muffler structure schematic representation of the present invention.
Embodiment
As shown in Figure 1, baffler of the present invention comprises outer tube 2 and interior pipe 1, and said outer tube 2 is the conical tube that upper end diameter is little, lower end diameter is big with interior pipe 1, and the tapering of outer tube 2 and interior pipe 1 equates.The inboard on outer tube 2 tops is provided with central diaphragm 3, leaves spacing between central diaphragm 3 and outer tube 2 upper ends, welds together with outer tube 2 inwalls around the central diaphragm 3.Central diaphragm 3 centers processing is porose, the diameter in this hole equate with interior pipe 1 upper end diameter and interior pipe 1 upper end and central diaphragm 3 on the hole weld together all around.In pipe be provided with the short Taper Pipe 7 that upper end diameter is little, lower end diameter is big in 1, the tapering of this short Taper Pipe is greater than the tapering of interior pipe 1, is around these short Taper Pipe 7 lower ends and between around the inwall of interior pipe 1 to seal shape and weld together.Short Taper Pipe 7 wherein has eight, and these short Taper Pipes 7 are evenly arranged along the inner chamber of interior pipe 1 is vertical.Short Taper Pipe 7 upper ends of that of the top and 3 of central diaphragms, adjacent two 7 of short Taper Pipes all leave spacing.
Further improvement of the present invention is, central diaphragm 3 is provided with the horn mouth 6 that upper end diameter is big, lower end diameter is little, around the equal diameters in the hole on this horn mouth lower end diameter and the central diaphragm 3 and horn mouth 6 lower ends with central diaphragm 3 on the hole around weld together.Wherein, the upper end diameter of horn mouth 6 equates with outer tube 2 upper end diameter.
Welding for ease of central diaphragm 3; Be provided with mouthpiece 4 in outer tube 2 upper ends; Said mouthpiece 4 be upper end diameter is little, lower end diameter is big conical tube and its tapering greater than outer tube 2, mouthpiece 4 lower end diameter equate with outer tube 2 upper end diameter and the two welds together.For ease of under installment state, being connected, be welded with flange 5 in mouthpiece 4 upper ends with the relief opening of import/exhaust mouth, air vent of automobile engine or some factories of air compressor.
During work, the mouthpiece upper end joins through the relief opening of import/exhaust mouth, air vent of automobile engine or some factories of flange and air compressor.Noise through in the gas of mouthpiece entering outer tube upper end is absorbed pipe in the entering of back by central diaphragm earlier.The noise of pipe is after being isolated by the spacing between interior pipe and outer tube in getting into; Pass through eight conical tubes successively according to top-down order again; Stopped by decay of the inwall of eight conical tubes and outer wall; Discharge inwall decay and outer wall obstruction back through eight eight conical tubes, thereby noise is reduced to bottom line.

Claims (7)

1. a baffler comprises outer tube (2) and interior pipe (1), and said outer tube (2) and interior pipe (1) are up-small and down-big conical tube, leaves spacing between outer tube (2) and interior pipe (1) and the tapering of the two equates; There is central diaphragm (3) inboard on outer tube (2) top; Leave spacing between central diaphragm (3) and outer tube (2) upper end; Central diaphragm (3) links to each other with outer tube (2) inwall all around; Central diaphragm (3) center is porose, and the diameter in this hole and interior pipe (1) upper end diameter equate and interior pipe (1) upper end links to each other with hole on the central diaphragm (3) all around; It is characterized in that up-small and down-big short Taper Pipe (7) is arranged in the interior pipe (1), the tapering of this short Taper Pipe is greater than the tapering of interior pipe (1), and its lower end circumferentially links to each other with the inwall of interior pipe (1).
2. baffler according to claim 1; It is characterized in that up big and down small horn mouth (6) is arranged on the central diaphragm (3), around the equal diameters in the hole on horn mouth (6) lower end diameter and the central diaphragm (3) and horn mouth (6) lower end with central diaphragm (3) on the hole around link together.
3. baffler according to claim 2 is characterized in that upper end diameter >=outer tube (2) upper end diameter of horn mouth (6).
4. baffler according to claim 1 is characterized in that said short Taper Pipe (7) has two at least, and the inner chamber of short Taper Pipe (7) the interior pipe in edge (1) vertically is uniformly distributed with.
5. baffler according to claim 4 is characterized in that between that short Taper Pipe (7) upper end and central diaphragm (3) of the top, all leaves spacing between adjacent two short Taper Pipes (7).
6. according to each described baffler in the claim 1~5; It is characterized in that there is mouthpiece (4) outer tube (2) upper end; Said mouthpiece (4) be up-small and down-big conical tube and its tapering greater than outer tube (2), mouthpiece (4) lower end diameter equates with outer tube (2) upper end diameter and the two links together.
7. according to each described baffler in the claim 1~5, it is characterized in that there is flange (5) mouthpiece (4) upper end.
CN 201010551904 2010-11-10 2010-11-10 Silencer Expired - Fee Related CN102465745B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010551904 CN102465745B (en) 2010-11-10 2010-11-10 Silencer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010551904 CN102465745B (en) 2010-11-10 2010-11-10 Silencer

Publications (2)

Publication Number Publication Date
CN102465745A true CN102465745A (en) 2012-05-23
CN102465745B CN102465745B (en) 2013-08-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201010551904 Expired - Fee Related CN102465745B (en) 2010-11-10 2010-11-10 Silencer

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105202009A (en) * 2015-11-05 2015-12-30 广东美芝制冷设备有限公司 Compressor bearing and compressor provided with same
CN112340602A (en) * 2020-10-29 2021-02-09 西南交通大学 Composite layer noise reduction cover applied to gantry crane
CN115977918A (en) * 2022-12-05 2023-04-18 广州万固压缩机有限公司 Double-layer shell noise reduction structure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2041727U (en) * 1987-03-31 1989-07-26 姜书礼 Vortex exhaust muffler
CN2402807Y (en) * 1999-10-08 2000-10-25 薛建伟 Silencer for motorcycle
US20020134614A1 (en) * 2001-03-23 2002-09-26 Shun-Lai Chen Structure of a muffler at the rear of exhaust pipe
CN101410594A (en) * 2006-03-28 2009-04-15 伊日·吉斯特 Silencer of exhaust gases, in particular for motor vehicles
CA2630268A1 (en) * 2008-05-02 2009-11-02 Klaus F. Nowak Exhaust pipe accessory
US20090321181A1 (en) * 2007-02-12 2009-12-31 Ballard Iii Ebbin C Inserts for engine exhaust systems

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2041727U (en) * 1987-03-31 1989-07-26 姜书礼 Vortex exhaust muffler
CN2402807Y (en) * 1999-10-08 2000-10-25 薛建伟 Silencer for motorcycle
US20020134614A1 (en) * 2001-03-23 2002-09-26 Shun-Lai Chen Structure of a muffler at the rear of exhaust pipe
CN101410594A (en) * 2006-03-28 2009-04-15 伊日·吉斯特 Silencer of exhaust gases, in particular for motor vehicles
US20090321181A1 (en) * 2007-02-12 2009-12-31 Ballard Iii Ebbin C Inserts for engine exhaust systems
CA2630268A1 (en) * 2008-05-02 2009-11-02 Klaus F. Nowak Exhaust pipe accessory

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105202009A (en) * 2015-11-05 2015-12-30 广东美芝制冷设备有限公司 Compressor bearing and compressor provided with same
CN105202009B (en) * 2015-11-05 2018-03-16 广东美芝制冷设备有限公司 Bearing of compressor and there is its compressor
CN112340602A (en) * 2020-10-29 2021-02-09 西南交通大学 Composite layer noise reduction cover applied to gantry crane
CN112340602B (en) * 2020-10-29 2021-05-25 西南交通大学 Composite layer noise reduction cover applied to gantry crane
CN115977918A (en) * 2022-12-05 2023-04-18 广州万固压缩机有限公司 Double-layer shell noise reduction structure
CN115977918B (en) * 2022-12-05 2023-07-07 广州万固压缩机有限公司 Double-layer shell noise reduction structure

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Granted publication date: 20130807

Termination date: 20141110

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