CN113658574A - Multifunctional environment-friendly energy-saving silencer - Google Patents
Multifunctional environment-friendly energy-saving silencer Download PDFInfo
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- CN113658574A CN113658574A CN202111017974.7A CN202111017974A CN113658574A CN 113658574 A CN113658574 A CN 113658574A CN 202111017974 A CN202111017974 A CN 202111017974A CN 113658574 A CN113658574 A CN 113658574A
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- cover plate
- tube
- inner tube
- pipe
- friendly energy
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention relates to a silencing pipe fitting, in particular to a multifunctional environment-friendly energy-saving silencer. It includes the amortization pipe fitting, and the amortization pipe fitting includes the shell body, still sets up the inner tube in the shell body, and the inner tube is connected with the center tube to form the chamber of giving vent to anger between inner tube and the shell body, the position that the cover piece corresponds the chamber of giving vent to anger is equipped with the opening, and high temperature high-pressure gas gets into by the speed reduction chamber of seting up in the center tube, sets up the pressure reduction chamber in the inner tube in addition, and high temperature high-pressure gas after the speed reduction gets into the pressure reduction chamber along the center tube, and the inner tube outer wall keeps the connected state with the chamber of giving vent to anger. According to the invention, after the high-temperature high-pressure gas is subjected to speed reduction and pressure reduction through the speed reduction cavity and the pressure reduction cavity, the generated impact force is greatly reduced, so that when the silencing cotton is used for buffering and silencing, the high-temperature high-pressure gas subjected to speed reduction and pressure reduction cannot damage the silencing cotton, and the problem that the silencing cotton is easily damaged by directly arranging the silencing cotton at the exhaust port is solved.
Description
Technical Field
The invention relates to a silencing pipe fitting, in particular to a multifunctional environment-friendly energy-saving silencer.
Background
Chinese patent publication No.: CN206176329U discloses a noise eliminator of boiler gas vent, including setting up in the noise elimination casing of boiler gas vent, still be provided with the air guide passageway with boiler gas vent intercommunication on the noise elimination casing, the fixed amortization material layer of noise elimination casing inner wall, just to the guide plate of making by amortization material of the rigidity of boiler gas vent in the noise elimination casing, directly set up the amortization cotton through the gas vent at boiler flue gas, through the amortization cotton buffering during flue gas discharge, speed very fast reduces, discharges through noise eliminator again, noise abatement.
Boiler steam in the power generation department is high temperature and high pressure, and the emission frequency bandwidth is wide, and it is infeasible to rely on the aperture amortization alone, and the pressure is great moreover directly sets up the amortization cotton and causes the damage to the amortization cotton very easily at the gas vent, can't play the effect of buffering amortization after the damage.
Disclosure of Invention
The invention aims to provide a multifunctional environment-friendly energy-saving silencer to solve the problems in the background technology.
For realizing above-mentioned purpose, provide multi-functional environmental protection and energy saving silencer, including the amortization pipe fitting, the amortization pipe fitting includes the shell body, and the both ends of shell body are equipped with sealing and cover piece respectively, one side that the shell body is located sealing is equipped with the center tube, still sets up the inner tube in the shell body, and the inner tube is connected with the center tube to form out the air cavity between inner tube and the shell body, the position that the cover piece corresponds out the air cavity is equipped with the opening, the speed reduction chamber that high temperature high-pressure gas seted up by the center tube gets into, sets up the pressure reduction chamber in the inner tube in addition, high temperature high-pressure gas after the speed reduction gets into the pressure reduction chamber along the center tube, the inner tube outer wall keeps the connected state with going out the air cavity.
As the further improvement of the technical scheme, the sealing piece comprises an outer sealing plate and an inner sealing plate, and the outer sealing plate and the inner sealing plate are connected to form a sealing surface for sealing one side of the outer shell, which is positioned on the central tube.
As a further improvement of the technical scheme, the inner side of the outer shell is also provided with a sound absorbing layer which surrounds the outer part of the air outlet cavity, and the sound absorbing layer is internally filled with a resistive sound absorbing structure.
As a further improvement of the technical scheme, the resistive sound absorption structure comprises glass cloth and sound absorption cotton, wherein:
the glass cloth is alkali-free glass cloth;
the sound-absorbing cotton adopts a centrifugal glass wool board.
As a further improvement of the technical scheme, the cover piece comprises an inner cover plate and an outer cover plate, the inner cover plate is attached to the inner pipe, the outer cover plate is attached to the sound absorption layer, the outer cover plate is of an annular structure, the inner cover plate is of a circular structure, and an opening is formed between the inner cover plate and the outer cover plate.
As a further improvement of the technical scheme, a plurality of reinforcing plates are annularly arranged in the speed reduction cavity and used for supporting the inner pipe and the sound absorption layer.
As a further improvement of the technical scheme, the seamless pipe is arranged at the position, corresponding to the connection of the sound absorbing layer and the air outlet cavity, of the outer side of the outer sealing plate.
As a further improvement of the technical scheme, a plurality of inner pipe holes are formed in the outer wall of the inner pipe in a penetrating mode, and a plurality of inner pipe hole central pipe holes are formed in the outer wall of the central pipe in a penetrating mode.
Compared with the prior art, the invention has the beneficial effects that:
1. in this multi-functional environmental protection and energy saving silencer, high temperature high-pressure gas is through the speed reduction chamber with step down the chamber speed reduction step-down back, the impact force of production reduces greatly, consequently when the cotton buffering amortization of amortization is being passed through, high temperature high-pressure gas after the speed reduction step-down can not cause the damage to the amortization cotton to the solution directly sets up the amortization cotton and causes the problem of damage to the amortization cotton very easily at the gas vent.
2. In this multi-functional environmental protection and energy saving silencer, through with glass cloth with inhale the sound cotton in going out the outlying setting of air cavity, avoid glass cloth and inhale the cotton direct and high-temperature high-pressure gas positive contact of sound, reduce the impact of high-temperature high-pressure gas to its production, further solve glass cloth and inhale the easy impaired problem of unable noise elimination of sound cotton, improved the quality of amortization simultaneously.
Drawings
FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;
FIG. 2 is a schematic view of a high-temperature high-pressure gas inlet flow in example 1 of the present invention;
FIG. 3 is a sectional view showing an overall side structure of embodiment 2 of the present invention;
FIG. 4 is a schematic structural view of a reinforcing plate according to example 2 of the present invention;
FIG. 5 is a schematic view of the inner tube opening structure according to example 3 of the present invention;
figure 6 is a schematic of the open cell structure of the center tube of example 3 of the present invention.
The various reference numbers in the figures mean:
100. a sound-deadening pipe fitting;
110. an outer housing; 120. an inner tube; 131. an inner tube bore; 130. a central tube; 131. a central tube aperture; 140. sealing; 141. an outer sealing plate; 142. an inner sealing plate; 1421. a reinforcing plate; (ii) a 150. A seamless pipe; 160. a cover member; 161. an inner cover plate; 162. an outer cover plate; 170. a reinforcing plate; 180. a sound absorbing layer;
200. an ear mount; 300. and (7) lifting lugs.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Example 1
Referring to fig. 1 and 2, the present embodiment aims to provide a multifunctional, environment-friendly and energy-saving muffler, which includes a muffler pipe 100, the muffler pipe 100 includes an outer shell 110, two ends of the outer shell 110 are respectively provided with a sealing member 140 and a cover member 160, one side of the outer shell 110 located at the sealing member 140 is provided with a central tube 130, the sealing member 140 includes an outer sealing plate 141 and an inner sealing plate 142, the outer sealing plate 141 and the inner sealing plate 142 are connected to form a sealing surface to seal one side of the outer shell 110 located at the central tube 130, an inner tube 120 is further disposed in the outer shell 110, the inner tube 120 is connected to the central tube 130, and an air outlet cavity is formed between the inner tube 120 and the outer shell 110, as shown in fig. 2, wherein a is a speed reducing cavity, B is a pressure reducing cavity, C is an air outlet cavity, the direction of an arrow is a flow direction of high-temperature and high-pressure gas, first, the cover member 160 is provided with an opening corresponding to the position of the air outlet cavity, the high-temperature and high-pressure gas enters from the speed reducing cavity in the central tube 130, at the moment, the entering area of the speed reduction cavity is reduced to delay the entering speed of high-temperature and high-pressure gas, in addition, a pressure reduction cavity is arranged in the inner tube 120, the high-temperature and high-pressure gas after speed reduction enters the pressure reduction cavity along the central tube, the high-temperature and high-pressure gas after pressure reduction passes through the large-volume pressure reduction cavity and then flows out from the opening through the gas outlet cavity, when the silencer is used, the silencer pipe fitting 100 is generally vertically installed on the furnace top, particularly welded on the furnace top through an ear type support 200, the weight of the silencer pipe fitting is supported by the ear type support 200, a steam exhaust pipe is welded with the outer shell 110 or connected with a flange, because the silencer and a connecting pipe are in flexible connection, the silencer is provided with a device for absorbing thermal displacement, the displacement generated by thermal expansion and contraction of the steam exhaust pipeline can be absorbed, in addition, the silencer pipe fitting 100 can also be hoisted through the lifting lugs 300, after the installation, the high-temperature and high-pressure gas after speed reduction and pressure reduction through the speed reduction cavity, the generated impact force is greatly reduced, simultaneously high temperature high pressure gas also correspondingly reduces through the noise that big volumetric step-down chamber step-down sent, can not install the amortization cotton like this, even through amortization cotton buffering amortization, high temperature high pressure gas after the step-down deceleration can not cause the damage to the amortization cotton yet to solve and directly set up the problem that the amortization cotton led to the fact the damage very easily to the amortization cotton at the gas vent.
It is worth noting that the outer shell 110, the inner tube 120, the center tube 130, the seal 140, the seamless tube 150, and the cover 160 are all made of stainless steel.
Example 2
Referring to fig. 3, a sound absorbing layer 180 is further disposed on the inner side of the outer casing 110, the sound absorbing layer 180 surrounds the outer portion of the air outlet cavity, and a resistive sound absorbing structure is filled in the sound absorbing layer 180, the structure includes glass cloth and sound absorbing cotton, wherein the glass cloth is alkali-free glass cloth, the sound absorbing cotton is a centrifugal glass wool board, the cover member 160 includes an inner cover plate 161 and an outer cover plate 162, the inner cover plate 161 is attached to the inner pipe 120, the outer cover plate 162 is attached to the sound absorbing layer 180, the outer cover plate 162 is an annular structure, the inner cover plate 161 is a circular structure, and an opening is formed between the inner cover plate 161 and the outer cover plate 162, so that when high-temperature and high-pressure air enters the velocity reduction cavity and the pressure reduction cavity and passes through the air outlet cavity, the glass cloth and the sound absorbing cotton absorb the remaining noise after velocity reduction and pressure reduction, and the design is specifically designed according to the spectral characteristics of the remaining noise emitted by the pressure reduction body (i.e., the velocity reduction cavity and the pressure reduction cavity) (the spectral characteristics include low-pressure reduction cavity) The exhaust and the emptying of steam of various boilers and pressure vessel pipelines with parameters of medium pressure, secondary high pressure, ultrahigh pressure, subcritical, supercritical and the like) for effectively absorbing residual noise, wherein the total silencing amount is 30-45 decibels, so that the purpose of noise reduction is achieved, meanwhile, the glass cloth and the sound-absorbing cotton are arranged at the periphery of the air outlet cavity, the direct front contact of the glass cloth and the sound-absorbing cotton with high-temperature and high-pressure gas is avoided, the impact of the high-temperature and high-pressure gas on the glass cloth and the sound-absorbing cotton is reduced, and the problem that the glass cloth and the sound-absorbing cotton are easy to damage and cannot silence is solved.
In addition, in order to improve the stability between the outer shell 110 and the inner tube 120, a plurality of reinforcing plates 170 are annularly arranged in the speed reduction cavity, and the inner tube 120 and the sound absorption layer 180 are supported by the reinforcing plates 170, so as to improve the stability, please refer to fig. 4, in which a reinforcing plate 1421 is arranged outside the central tube 130, and the reinforcing plate 1421 is attached to the inner sealing plate 142, so as to reinforce the central tube 130, thereby improving the stability.
In addition, the seamless pipe 150 is arranged at the position, corresponding to the joint of the sound absorption layer 180 and the air outlet cavity, on the outer side of the outer sealing plate 141, and the seamless pipe 150 can block audio from being emitted from the joint of the sound absorption layer 180 and the speed reduction cavity, so that the noise elimination effect is further improved.
Example 3
Referring to fig. 5 and 6, a plurality of holes 121 are formed through the outer wall of the inner tube 120, and a plurality of inner tube hole central tube holes 131 are formed through the outer wall of the central tube 130, wherein a is an opening area of the inner tube hole central tube holes 131, the hole center distance is 16mm, and the hole diameter is 3 mm; b is an opening area of 121, the center distance of the holes is 16mm, and the aperture is 3 mm; a. b is 1100mm in total, so that the high-temperature and high-pressure gas flows between the speed reducing chamber and the pressure reducing chamber through the 121 and flows out of the central pipe 130 through the central pipe hole 131 of the inner pipe hole, the sound power of each frequency multiplier band of the flowing high-temperature and high-pressure gas is reduced through the 121 and the central pipe hole 131 of the inner pipe hole, the frequency of the sound pressure level is increased to be above 20000Hz, and the noise emitted by the high-temperature and high-pressure gas is further weakened.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. Multi-functional environmental protection and energy saving silencer, including amortization pipe fitting (100), amortization pipe fitting (100) are including shell body (110), and the both ends of shell body (110) are equipped with respectively seals piece (140) and cover piece (160), its characterized in that: one side that shell body (110) is located sealing member (140) is equipped with center tube (130), still set up inner tube (120) in shell body (110), inner tube (120) are connected with center tube (130), and form between inner tube (120) and shell body (110) and go out the air cavity, the position that lid (160) correspond the air cavity of giving vent to anger is equipped with the opening, the speed reduction chamber that high temperature high-pressure gas seted up in by center tube (130) gets into, set up the decompression chamber in inner tube (120) in addition, high temperature high-pressure gas after the speed reduction gets into the decompression chamber along center tube (130), inner tube (120) outer wall keeps the connected state with the air cavity of giving vent to anger.
2. The multifunctional environment-friendly energy-saving muffler according to claim 1, characterized in that: the sealing piece (140) comprises an outer sealing plate (141) and an inner sealing plate (142), and the outer sealing plate (141) and the inner sealing plate (142) are connected to form a sealing surface for sealing one side of the outer shell (110) located on the central tube (130).
3. The multifunctional environment-friendly energy-saving muffler according to claim 2, characterized in that: the inner side of the outer shell (110) is also provided with a sound absorbing layer (180), the sound absorbing layer (180) surrounds the outside of the air outlet cavity, and a resistive sound absorbing structure is filled in the sound absorbing layer (180).
4. The multi-functional environment-friendly energy-saving muffler according to claim 3, characterized in that: have resistive sound absorbing structure to include glass cloth and inhale the sound cotton, wherein:
the glass cloth is alkali-free glass cloth;
the sound-absorbing cotton adopts a centrifugal glass wool board.
5. The multi-functional environment-friendly energy-saving muffler according to claim 3, characterized in that: the cover piece (160) comprises an inner cover plate (161) and an outer cover plate (162), the inner cover plate (161) is attached to the inner pipe (120), the outer cover plate (162) is attached to the sound absorption layer (180), the outer cover plate (162) is of an annular structure, the inner cover plate (161) is of a circular structure, and an opening is formed between the inner cover plate (161) and the outer cover plate (162).
6. The multi-functional environment-friendly energy-saving muffler according to claim 5, wherein: a plurality of reinforcing plates (170) are annularly arranged in the speed reduction cavity, and the reinforcing plates (170) are used for supporting the inner pipe (120) and the sound absorption layer (180).
7. The multi-functional environment-friendly energy-saving muffler according to claim 5, wherein: and a seamless pipe (150) is arranged at the outer side of the outer sealing plate (141) corresponding to the joint position of the sound absorbing layer (180) and the air outlet cavity.
8. The multifunctional environment-friendly energy-saving muffler according to claim 1, characterized in that: the outer wall of the inner pipe (120) is provided with a plurality of inner pipe holes (121) in a penetrating mode, and the outer wall of the central pipe (130) is provided with a plurality of inner pipe hole central pipe holes (131) in a penetrating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111017974.7A CN113658574A (en) | 2021-09-01 | 2021-09-01 | Multifunctional environment-friendly energy-saving silencer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111017974.7A CN113658574A (en) | 2021-09-01 | 2021-09-01 | Multifunctional environment-friendly energy-saving silencer |
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| CN113658574A true CN113658574A (en) | 2021-11-16 |
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| CN202111017974.7A Pending CN113658574A (en) | 2021-09-01 | 2021-09-01 | Multifunctional environment-friendly energy-saving silencer |
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| CN203604186U (en) * | 2013-11-28 | 2014-05-21 | 武汉理工大学 | Double-layer serial micro-perforated pipe muffler |
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| CN206860273U (en) * | 2017-06-23 | 2018-01-09 | 四川创邻机械有限公司 | The silencer of general gasoline engines |
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| CN109945005A (en) * | 2019-04-03 | 2019-06-28 | 西南石油大学 | A kind of gas air releasing silencer |
| CN210378462U (en) * | 2019-06-12 | 2020-04-21 | 新邵县金龙纸业有限责任公司 | Silencer |
| CN210370852U (en) * | 2019-06-03 | 2020-04-21 | 安徽全柴动力股份有限公司 | Engine silencer |
| CN111369961A (en) * | 2020-02-20 | 2020-07-03 | 潘泉方 | High-temperature high-pressure gas (or gas) small-hole injection throttling decompression discharge composite muffler |
| US20200263578A1 (en) * | 2019-02-19 | 2020-08-20 | Honda Motor Co.,Ltd. | Exhaust muffler structure |
| CN212411569U (en) * | 2020-04-21 | 2021-01-26 | 贵州北盘江电力股份有限公司董箐分公司 | Small-hole pressure-reducing injection silencer and multi-stage small-hole pressure-reducing injection silencer |
-
2021
- 2021-09-01 CN CN202111017974.7A patent/CN113658574A/en active Pending
Patent Citations (16)
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| CN2806778Y (en) * | 2005-07-06 | 2006-08-16 | 林辉江 | Exhaust muffler for diesel engine of railway passenger car with air conditioner |
| CN102691549A (en) * | 2011-03-24 | 2012-09-26 | 宜兴市川泽环境工程有限公司 | Impedance combined type silencer |
| CN103671071A (en) * | 2013-11-28 | 2014-03-26 | 武汉理工大学 | Double-layer series silencer with miniature perforated pipes |
| CN203604186U (en) * | 2013-11-28 | 2014-05-21 | 武汉理工大学 | Double-layer serial micro-perforated pipe muffler |
| CN105673170A (en) * | 2014-11-17 | 2016-06-15 | 上海狮虎能源科技股份有限公司 | Internal sound absorption type resonance silencer |
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| CN206860273U (en) * | 2017-06-23 | 2018-01-09 | 四川创邻机械有限公司 | The silencer of general gasoline engines |
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| CN109945005A (en) * | 2019-04-03 | 2019-06-28 | 西南石油大学 | A kind of gas air releasing silencer |
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Application publication date: 20211116 |