CN104847664A - Tank truck noise-reducing muffler - Google Patents
Tank truck noise-reducing muffler Download PDFInfo
- Publication number
- CN104847664A CN104847664A CN201510171529.4A CN201510171529A CN104847664A CN 104847664 A CN104847664 A CN 104847664A CN 201510171529 A CN201510171529 A CN 201510171529A CN 104847664 A CN104847664 A CN 104847664A
- Authority
- CN
- China
- Prior art keywords
- anechoic room
- noise
- muffler
- tank car
- housing
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
- F04C29/065—Noise dampening volumes, e.g. muffler chambers
Abstract
The invention discloses a tank truck noise-reducing muffler. The tank truck noise-reducing muffler comprises a muffler device and a pedestal; the muffler device is connected with the pedestal; the muffler device is composed of a housing, a first noise elimination chamber, a second noise elimination chamber, and a third noise elimination chamber; the upper end of the housing is provided with an air inlet; the top part of the housing is provided with a top cover; and the bottom of the housing is provided with an air outlet. The three noise elimination chambers are arranged in a broken line, air flow is delivered through the three noise elimination chambers used for eliminating noise of different frequency, the direction of the air flow is changed in the noise elimination chambers, middle and low frequency noise can be reduced effectively, and noise elimination effect is excellent.
Description
Technical field
The present invention relates to car part and manufacture field, be specifically related to a kind of tank car noise-reducing silencer.
Background technique
In recent years, large-scale transport vehicles is relatively more frequent in the use of each class factory, and noise is large.Tank car vacuum pump adopts two impeller positive displacement Roots pumps.Due to Roots pump performance characteristic, in the industry cycle be called as " sound tiger ", very large noise radiation is produced during its work, therefore create sizable noise when vehicle suction operation, the air power noise of the especially on-stream generation of vacuum pump, its sound is dull, propagation length is far away, penetrating power is strong, severe exacerbation work conditions of manufacture, pollutes working environment, brings larger impact and harm to the physical and mental health of operator.Based on the requirement of labor protection and environmental protection, noise reduction work must be carried out, solve " sound tiger " problem, for worker provides a good working environment.
Summary of the invention
The object of the present invention is to provide a kind of tank car noise-reducing silencer, solve above-mentioned multinomial defect.
The technical problem that the present invention solves can realize by the following technical solutions: a kind of tank car noise-reducing silencer, comprise muffler and base, described muffler is connected with base, muffler is made up of housing and anechoic room, it is described that housing upper end is provided with suction port, case top is provided with top cover, housing bottom is provided with relief opening, and described anechoic room is provided with the first anechoic room, the second anechoic room and the 3rd anechoic room, and the first anechoic room, the second anechoic room and the 3rd anechoic room broken line are arranged in series.
Preferably, described first anechoic room, the second anechoic room and the 3rd anechoic room are all rectangular cross-section, and the first anechoic room, the second anechoic room and the 3rd anechoic room are provided with dividing plate each other.
Preferably, if described first anechoic room, the second anechoic room and the 3rd anechoic room inside are all provided with pole-footing interpolation pipe, described interpolation pipe vertically arranges.
Preferably, be provided with some with perforated pipe between described interpolation pipe, perforated pipe is used for the connection of interpolation pipe.
Preferably, described suction port adopts protrusive type suction port, and relief opening cross section is rectangle.
Preferably, described housing exterior walls is provided with damping glue.
Beneficial effect: the present invention is by by the arrangement of three anechoic room broken lines, and allow air-flow successively by three silencing apparatuss for different frequency, make air-flow in silencing apparatus Internal Change direction, effectively can reduce Middle and low frequency noise, noise reduction is obvious.Described anechoic room have employed the structure of rectangular cross-section, can better at silencing apparatus internal placement interpolation pipe; Coat damping glue to increase damping at silencing apparatus outer wall, amplitude when resonating can be reduced, can noise insulation factor be increased simultaneously; Interpolation pipe couples together by described perforated pipe (punching rate should be greater than 30%), greatly can improve silencing apparatus inner air power performance, and it is little on the frequency acoustic attenuation performance impact of silencing apparatus, this silencing apparatus vertically installs, by upper and lower interpolation pipe being coupled together the coupling stiffness can strengthening interpolation pipe; Described suction port direction is designed to forward, and above operator cabin, when design can prevent sleety weather like this, internal structure is made moist, and described case top is provided with top cover and blocks, and usual object is also not easy to fall into.
Accompanying drawing explanation
Fig. 1 is the structural representation of tank car noise-reducing silencer of the present invention;
Fig. 2 is the plan view of tank car noise-reducing silencer of the present invention;
Wherein: 1-muffler, the 2-the three anechoic room, the 3-the second anechoic room, the 4-the first anechoic room, 5-perforated pipe, 6-top cover, 7-relief opening, 8-dividing plate, 9-interpolation pipe, 10-suction port.
Embodiment
The technological means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the present invention further.
As depicted in figs. 1 and 2, a kind of tank car noise-reducing silencer, comprise muffler 1 and base, described muffler 1 is connected with base, muffler 1 is made up of housing and anechoic room, described housing upper end is provided with suction port 10, case top is provided with top cover 6, housing bottom is provided with relief opening 7, described anechoic room is provided with the first anechoic room 4, second anechoic room 3 and the 3rd anechoic room 2, first anechoic room 4, second anechoic room 3 and the 3rd anechoic room 2 broken line are arranged in series, described first anechoic room 4, second anechoic room 3 and the 3rd anechoic room 2 are all rectangular cross-section, first anechoic room 4, second anechoic room 3 and the 3rd anechoic room 2 are provided with dividing plate 8 each other, described first anechoic room 4, if the second anechoic room 3 and the 3rd anechoic room 2 inside are all provided with pole-footing interpolation pipe 9, described interpolation pipe 9 vertically arranges, be provided with some with perforated pipe 5 between described interpolation pipe 9, perforated pipe 5 is for the connection by interpolation pipe 9, described suction port 10 adopts protrusive type suction port 10, relief opening 7 cross section is rectangle, described housing exterior walls is provided with damping glue.
First anechoic room 4 of the present invention is the anechoic room of 80HZ; second anechoic room 3 is the anechoic room of 120HZ and 200HZ; 3rd anechoic room 2 is the anechoic room of 80HZ; due to the anechoic room for 120HZ and the anechoic room length sum for 200HZ and the anechoic room similar length for 80HZ, when actual silencing apparatus height is just connected in series than straight line, reduce nearly half; Further 80HZ, 120HZ and 200HZ tri-frequency contents of final sound wave, because each silencing apparatus is broken-line type series connection, make air-flow successively by the anechoic room for different frequency, instead of enter all anechoic rooms simultaneously, so can be greatly attenuated; The anechoic room being connected to 200HZ below of described 120HZ anechoic room, gas direction is changed again once, and be connected in series the anechoic room of a 80HZ, make porting 7 in the opposite direction, the 80HZ frequency content proportion of noise is far longer than 120HZ and 200HZ.In order to strengthen the decay to 80HZ, subtract, increase a same anechoic room and can realize this function, it one is to make acoustic wave filter structure size symmetrical together that the anechoic room that two 80HZ are corresponding does not abut against, and two is to do decay further to the 80Hz noise in sound wave after middle two anechoic rooms.
Based on said structure design, the present invention is by by the arrangement of three anechoic room broken lines, and allow air-flow successively by three silencing apparatuss for different frequency, make air-flow in silencing apparatus Internal Change direction, effectively can reduce Middle and low frequency noise, noise reduction is obvious.Described anechoic room have employed the structure of rectangular cross-section, can better at silencing apparatus internal placement interpolation pipe; Coat damping glue to increase damping at silencing apparatus outer wall, amplitude when resonating can be reduced, can noise insulation factor be increased simultaneously; Interpolation pipe couples together by described perforated pipe (punching rate should be greater than 30%), greatly can improve silencing apparatus inner air power performance, and it is little on the frequency acoustic attenuation performance impact of silencing apparatus, this silencing apparatus vertically installs, by upper and lower interpolation pipe being coupled together the coupling stiffness can strengthening interpolation pipe; Described suction port direction is designed to forward, and above operator cabin, when design can prevent sleety weather like this, internal structure is made moist, and described case top is provided with top cover and blocks, and usual object is also not easy to fall into.
As known by the technical knowledge, the present invention can be realized by other the embodiment not departing from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, is not only.Within the scope of the present invention all or be all included in the invention being equal to the change in scope of the present invention.
Claims (6)
1. a tank car noise-reducing silencer, it is characterized in that: comprise muffler and base, described muffler is connected with base, muffler is made up of housing and anechoic room, it is described that housing upper end is provided with suction port, case top is provided with top cover, housing bottom is provided with relief opening, and described anechoic room is provided with the first anechoic room, the second anechoic room and the 3rd anechoic room, and the first anechoic room, the second anechoic room and the 3rd anechoic room broken line are arranged in series.
2. a kind of tank car noise-reducing silencer according to claim 1, is characterized in that: described first anechoic room, the second anechoic room and the 3rd anechoic room are all rectangular cross-section, and the first anechoic room, the second anechoic room and the 3rd anechoic room are provided with dividing plate each other.
3. a kind of tank car noise-reducing silencer according to claim 1, is characterized in that: if described first anechoic room, the second anechoic room and the 3rd anechoic room inside are all provided with pole-footing interpolation pipe, and described interpolation pipe vertically arranges.
4. a kind of tank car noise-reducing silencer according to claim 3, is characterized in that: be provided with some with perforated pipe between described interpolation pipe, perforated pipe is used for the connection of interpolation pipe.
5. a kind of tank car noise-reducing silencer according to claim 1, is characterized in that: described suction port adopts protrusive type suction port, and relief opening cross section is rectangle.
6. a kind of tank car noise-reducing silencer according to claim 1, is characterized in that: described housing exterior walls is provided with damping glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510171529.4A CN104847664A (en) | 2015-04-13 | 2015-04-13 | Tank truck noise-reducing muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510171529.4A CN104847664A (en) | 2015-04-13 | 2015-04-13 | Tank truck noise-reducing muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104847664A true CN104847664A (en) | 2015-08-19 |
Family
ID=53847558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510171529.4A Pending CN104847664A (en) | 2015-04-13 | 2015-04-13 | Tank truck noise-reducing muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104847664A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764204A (en) * | 2019-03-06 | 2019-05-17 | 西南石油大学 | A kind of natural gas vent sound deadener |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080257640A1 (en) * | 2005-04-11 | 2008-10-23 | Carrier Corporation | Compressor Muffler |
| JP2009519394A (en) * | 2005-12-01 | 2009-05-14 | テネコ オートモティブ オペレーティング カンパニー インコーポレイテッド | Silencer with sound absorbing material |
| CN201982158U (en) * | 2011-03-16 | 2011-09-21 | 奇瑞汽车股份有限公司 | Car exhaust muffler |
| CN204627994U (en) * | 2015-04-13 | 2015-09-09 | 泰州市建业车件制造有限公司 | A kind of tank car noise-reducing silencer |
-
2015
- 2015-04-13 CN CN201510171529.4A patent/CN104847664A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080257640A1 (en) * | 2005-04-11 | 2008-10-23 | Carrier Corporation | Compressor Muffler |
| JP2009519394A (en) * | 2005-12-01 | 2009-05-14 | テネコ オートモティブ オペレーティング カンパニー インコーポレイテッド | Silencer with sound absorbing material |
| CN201982158U (en) * | 2011-03-16 | 2011-09-21 | 奇瑞汽车股份有限公司 | Car exhaust muffler |
| CN204627994U (en) * | 2015-04-13 | 2015-09-09 | 泰州市建业车件制造有限公司 | A kind of tank car noise-reducing silencer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764204A (en) * | 2019-03-06 | 2019-05-17 | 西南石油大学 | A kind of natural gas vent sound deadener |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150819 |