CN201428611Y - Routs blower vent-port impedance composite-type combined muffler with base - Google Patents
Routs blower vent-port impedance composite-type combined muffler with base Download PDFInfo
- Publication number
- CN201428611Y CN201428611Y CN2009200426530U CN200920042653U CN201428611Y CN 201428611 Y CN201428611 Y CN 201428611Y CN 2009200426530 U CN2009200426530 U CN 2009200426530U CN 200920042653 U CN200920042653 U CN 200920042653U CN 201428611 Y CN201428611 Y CN 201428611Y
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- silencing
- expansion chamber
- pot
- air
- air outlet
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Abstract
The utility model relates to a Routs blower vent-port impedance composite-type combined muffler with a base, which comprises a silencing pot (1), wherein the inner wall of the silencing pot (1) is provided with silencing glass wool (3) which is fixed by a porous plate (11), and is characterized in that a compartment plate (2) is arranged inside the silencing pot (1), so the interior of the silencing pot (1) is divided into an air-intake silencing expansion chamber (12) and an air-outlet silencing expansion chamber (13), an air-intake porous pipe (9) is arranged above the air-intake silencing expansion chamber (12), the side part of the air-outlet silencing expansion chamber (13) is provided with an air-outlet porous pipe (10), and the bottom edge of a side plate (17) which is respectivelyarranged at two sides of the silencing pot (1) is rolled and bent to form a base (7) which is connected with the foundation. The Routs blower vent-port impedance composite-type combined muffler with the base has beautiful appearance and convenient installation; air enters the silencing chamber to be suddenly expanded and silenced, the glass wool absorbs the sound, the air enters another silencingchamber to be further silenced to flow out from the porous pipeline on the compartment plate, and the plurality of pores on the pipeline play the role in resonant silencing, and the impedance combined-type muffler can reduce the noise by 20 to 30 dB (A) through the test.
Description
Technical field
The utility model relates to the roots blower technical field, especially a kind of roots blower air outlet impedance complex formula band support combination silencing apparatus.
Background technique
The roots blower exit flow has high-intensity wideband noise, and for addressing this problem, the blower fan air outlet of being everlasting fixes a silencer.Roots blower air outlet commonly used silencing apparatus major part is a dissipative muffler, such silencing apparatus is to utilize resistive sound-absorbing material to reduce high-frequency noises, part impedance combination formula silencing apparatus is also arranged, and promptly reactive muffler is to utilize the sudden change expansion of channel cross-section or side to connect resonant cavity to reach and reduce the medium and low frequency noise.Impedance complex formula blower fan baffler, because of in the actual noise Control Engineering, noise is in the majority with wide band, usually resistive absorbing sound and lowering noise sound and reactive muffling noise reduction acoustic form is combined, to control high-intensity wideband noise.Yet these measures can not effectively solve the difficult problem of noise elimination.
Summary of the invention
The purpose of this utility model provides a kind of roots blower air outlet impedance complex formula band support combination silencing apparatus, to overcome above-mentioned defective.
The technical solution of the utility model is:
A kind of roots blower air outlet impedance complex formula band support combination silencing apparatus, comprise silencing pot, the inwall of silencing pot is provided with by the fixing noise elimination glass wool of porous slab, the inside of described silencing pot is provided with shifting board, be isolated into the intake noise reduction expansion chamber and the noise elimination expansion chamber of giving vent to anger in silencing pot, intake noise reduction expansion chamber top is provided with the air inlet perforated tube, and the noise elimination expansion chamber of giving vent to anger sidepiece is provided with the perforated tube of giving vent to anger, in the crimping bending of the side plate base of the both sides of silencing pot, constitute the support that is connected with ground.
Described air inlet perforated tube is provided with the inlet flange that is used to connect the roots blower suction tude.
The described perforated tube of giving vent to anger is provided with the air outlet flange.Described shifting board is provided with the porous hush tube.
Described air inlet perforated tube, give vent to anger perforated tube and porous hush tube are provided with the resonant silencing hole.
Described support is as the roots blower base, and support is provided with adjustable from tensioning mechanism.
Described adjustablely form by spring, pull bar, first hinging shaft, second hinging shaft and motor seat board from tensioning mechanism, first hinging shaft and second hinging shaft flexibly connect with the middle part of silencing pot side plate and bottom respectively, motor seat board one end and first hinging shaft flexibly connect, the other end is sandwiched between spring and the gland nut, and the pull bar and second hinging shaft flexibly connect.
The beneficial effects of the utility model are:
Because the utility model has adopted resistive and twice reactive muffling handled, erasure effect is remarkable.Because silencing apparatus has replaced the blower fan support, has saved material, has dwindled the installation floor space.Be provided with resistive silencer and secondary resistance device in silencing apparatus inside, and be provided with the adjustable support that is used to connect motor from tensioning mechanism in the baffler outside.Its advantage is that good muffling effect, economical with materials, installation floor space are little.
The utility model beautiful shape, be convenient to install, air inlet is to anechoic room, suddenly volume expansion is eliminated the noise, the glass wool sound absorption, enter the same reason of another anechoic room through void channels on the dividing plate and further flow out steam outlet pipe after the noise elimination, porous plays the resonant silencing effect on the pipeline, but this impedance convolution silencing apparatus is through test noise reduction sound 20～30dB (A).
The utility model utilizes the support of cylindrical shell as roots blower, utilizes behind the cylindrical shell two end side panels flanging as the connecting body of support with the basis, extend side plate and connect motor seat board with hinge axis, again with spring and pull bar as from tensioning mechanism.
Description of drawings
Fig. 1 is an overall structure cross-sectional schematic of the present utility model.
Fig. 2 be among Fig. 1 A to view.
Among the figure: 1 for silencing pot, 2 for shifting board, 3 for the noise elimination glass wool, 4 for the air outlet flange, 5 for the suction port flange, 6 for the porous hush tube, 7 for support, 8 for adjustable from tensioning mechanism, 9 for the air inlet perforated tube, 10 for the perforated tube of giving vent to anger, 11 for porous slab, 12 for the intake noise reduction expansion chamber, 13 for the noise elimination expansion chamber of giving vent to anger, 14 for pull bar, 15 be that side plate, 18 is that first hinging shaft, 19 is second hinging shaft for spring, 16 is motor seat board, 17.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
A kind of roots blower air outlet impedance complex formula band support combination silencing apparatus, comprise silencing pot 1, the inwall of silencing pot 1 is provided with the noise elimination glass wool of being fixed by porous slab 11 3, the inside of described silencing pot 1 is provided with shifting board 2, in silencing pot 1, be isolated into the intake noise reduction expansion chamber 12 and the noise elimination expansion chamber 13 of giving vent to anger, intake noise reduction expansion chamber 12 tops are provided with air inlet perforated tube 9, the noise elimination expansion chamber of giving vent to anger 13 sidepieces are provided with the perforated tube 10 of giving vent to anger, side plate 17 base crimpings bendings in the both sides of silencing pot 1 constitute the support 7 that is connected with ground.Save material and dwindled erection space.
Air inlet perforated tube 9 is provided with the inlet flange 5 that is used to connect the roots blower suction tude.
The perforated tube 10 of giving vent to anger is provided with air outlet flange 4.
Shifting board 2 is provided with porous hush tube 6.
Air inlet perforated tube 9, give vent to anger perforated tube 10 and porous hush tube 6 are provided with the resonant silencing hole.
Adjustablely form by spring 15, pull bar 14, first hinging shaft 18, second hinging shaft 19 and motor seat board 16 from tensioning mechanism 8, first hinging shaft 18 and second hinging shaft 19 flexibly connect with the middle part of silencing pot 1 side plate 17 and bottom respectively, motor seat board 16 1 ends and first hinging shaft 18 flexibly connect, the other end is sandwiched between spring 15 and the gland nut, and the pull bar 14 and second hinging shaft 19 flexibly connect.
The wind that the roots blower exhaust outlet produces enters into intake noise reduction expansion chamber 12 by air inlet perforated tube 9, and volume expansion is eliminated the noise suddenly, and 3 sound absorptions of noise elimination glass wool utilize resistive sound-absorbing material to reduce high-frequency noises.
Porous hush tube 6 enters the noise elimination expansion chamber 13 of giving vent to anger on shifting board 2, further eliminate the noise the back from perforated tube 10 outflows of giving vent to anger, the resonant silencing effect is played in resonant silencing hole on air inlet perforated tube 9, give vent to anger perforated tube 10 and the porous hush tube 6, but this impedance convolution silencing apparatus is through test noise reduction sound 20～30dB (A)..
Simultaneously, utilize the support 7 of the side plate 17 of silencing pot 1 extension as roots blower, utilize behind silencing pot 1 cylindrical shell two end side panels 17 flangings as the connecting body of support 7 with ground, the side plate 17 of extension connects motor seat boards 16 with hinge axis 18, again with spring 15 and pull bar 14 as from tensioning mechanism.
Claims (7)
1, a kind of roots blower air outlet impedance complex formula band support combination silencing apparatus, comprise silencing pot (1), the inwall of silencing pot (1) is provided with by the fixing noise elimination glass wool (3) of porous slab (11), the inside that it is characterized in that described silencing pot (1) is provided with shifting board (2), in silencing pot (1), be isolated into intake noise reduction expansion chamber (12) and the noise elimination expansion chamber (13) of giving vent to anger, intake noise reduction expansion chamber (12) top is provided with air inlet perforated tube (9), the noise elimination expansion chamber of giving vent to anger (13) sidepiece is provided with the perforated tube of giving vent to anger (10), in the crimping bending of side plate (17) base of the both sides of silencing pot (1), constitute the support (7) that is connected with ground.
2, roots blower air outlet impedance complex formula band support combination silencing apparatus according to claim 1 is characterized in that described air inlet perforated tube (9) is provided with the inlet flange (5) that is used to connect the roots blower suction tude.
3, roots blower air outlet impedance complex formula band support combination silencing apparatus according to claim 1 is characterized in that the described perforated tube of giving vent to anger (10) is provided with air outlet flange (4).
4, roots blower air outlet impedance complex formula band support combination silencing apparatus according to claim 1 is characterized in that described shifting board (2) is provided with porous hush tube (6).
5, according to claim 1,2,3 or 4 described roots blower air outlet impedance complex formula band support combination silencing apparatuss, it is characterized in that described air inlet perforated tube (9), the perforated tube of giving vent to anger (10) and porous hush tube (6) are provided with the resonant silencing hole.
6, impedance complex formula band frame combination silencing apparatus according to claim 1, it is adjustable from tensioning mechanism (8) to it is characterized in that described support (7) is provided with.
7, according to claim 1 or 6 described roots blower air outlet impedance complex formula band support combination silencing apparatuss, it is characterized in that described adjustable from tensioning mechanism (8) by spring (15), pull bar (14), first hinging shaft (18), second hinging shaft (19) and motor seat board (16) are formed, first hinging shaft (18) and second hinging shaft (19) flexibly connect with the middle part of silencing pot (1) side plate (17) and bottom respectively, motor seat board (16) one ends and first hinging shaft (18) flexibly connect, the other end is sandwiched between spring (15) and the gland nut, and pull bar (14) flexibly connects with second hinging shaft (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200426530U CN201428611Y (en) | 2009-06-18 | 2009-06-18 | Routs blower vent-port impedance composite-type combined muffler with base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200426530U CN201428611Y (en) | 2009-06-18 | 2009-06-18 | Routs blower vent-port impedance composite-type combined muffler with base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201428611Y true CN201428611Y (en) | 2010-03-24 |
Family
ID=42032348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200426530U Expired - Fee Related CN201428611Y (en) | 2009-06-18 | 2009-06-18 | Routs blower vent-port impedance composite-type combined muffler with base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201428611Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110381A (en) * | 2014-06-10 | 2014-10-22 | 宁波升鸿机械设备有限公司 | Muffling bucket used for roots blower |
| CN104165164A (en) * | 2014-08-29 | 2014-11-26 | 南京磁谷科技有限公司 | Sound reducing enclosure of air blower and sound reducing method of sound reducing enclosure of air blower |
| CN104454665A (en) * | 2014-11-29 | 2015-03-25 | 山东明天机械有限公司 | Unit-type silencer |
| CN104652633A (en) * | 2015-02-11 | 2015-05-27 | 瓮福达州化工有限责任公司 | Noise reduction device for Roots blower |
| CN104747452A (en) * | 2014-07-22 | 2015-07-01 | 施周平 | Ceiling of sound insulation cover |
| CN107476913A (en) * | 2017-09-30 | 2017-12-15 | 贵州新安航空机械有限责任公司 | A kind of engine relief valve air exhaust muffler device |
| CN107725323A (en) * | 2017-09-26 | 2018-02-23 | 台州宝乾机电有限公司 | A kind of muffler and its noise reduction method |
-
2009
- 2009-06-18 CN CN2009200426530U patent/CN201428611Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110381A (en) * | 2014-06-10 | 2014-10-22 | 宁波升鸿机械设备有限公司 | Muffling bucket used for roots blower |
| CN104747452A (en) * | 2014-07-22 | 2015-07-01 | 施周平 | Ceiling of sound insulation cover |
| CN104165164A (en) * | 2014-08-29 | 2014-11-26 | 南京磁谷科技有限公司 | Sound reducing enclosure of air blower and sound reducing method of sound reducing enclosure of air blower |
| CN104454665A (en) * | 2014-11-29 | 2015-03-25 | 山东明天机械有限公司 | Unit-type silencer |
| CN104652633A (en) * | 2015-02-11 | 2015-05-27 | 瓮福达州化工有限责任公司 | Noise reduction device for Roots blower |
| CN104652633B (en) * | 2015-02-11 | 2017-05-10 | 瓮福达州化工有限责任公司 | Noise reduction device for Roots blower |
| CN107725323A (en) * | 2017-09-26 | 2018-02-23 | 台州宝乾机电有限公司 | A kind of muffler and its noise reduction method |
| CN107476913A (en) * | 2017-09-30 | 2017-12-15 | 贵州新安航空机械有限责任公司 | A kind of engine relief valve air exhaust muffler device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100324 Termination date: 20120618 |