CN112627939A - Impedance composite silencing tower - Google Patents
Impedance composite silencing tower Download PDFInfo
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- CN112627939A CN112627939A CN202011628615.0A CN202011628615A CN112627939A CN 112627939 A CN112627939 A CN 112627939A CN 202011628615 A CN202011628615 A CN 202011628615A CN 112627939 A CN112627939 A CN 112627939A
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- silencing
- tower
- body shell
- noise elimination
- muffler
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling by passing the exhaust gases through porous members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
本发明公开了一种阻抗复合式消声塔，其包括第一消声装置和第二消声装置，其中，第一消声装置包括扩散管，扩散管的一端具有进口，另一端具有封头，扩散管的侧壁上设置有若干个小通孔，第二消声装置包括消声塔的本体外壳，以及容纳在本体外壳内的一组或多组消声结构，消声塔的本体外壳具有容纳腔，以及与容纳腔连通的开口，扩散管具有封头的一端自开口容纳于容纳腔内，消声结构包括阻性消声组件和抗性消声组件，阻性消声组件包括若干个平行间隔分布的消声片，消声片沿消声塔的本体外壳的中心轴线方向设置，本发明提出的消声塔可根据用户对消声量的要求，任意添加消声结构来达到增加消声量的目的。
The invention discloses an impedance composite sound-absorbing tower, which comprises a first sound-absorbing device and a second sound-absorbing device, wherein the first sound-absorbing device includes a diffuser, one end of the diffuser has an inlet, and the other end has a head , the side wall of the diffuser is provided with a number of small through holes, the second muffler device includes the body shell of the muffler tower, and one or more groups of muffler structures accommodated in the body shell, the body shell of the muffler tower It has an accommodating cavity and an opening communicating with the accommodating cavity. One end of the diffuser with a head is accommodated in the accommodating cavity from the opening. The muffler structure includes a resistive muffler assembly and a resistive muffler assembly. The resistive muffler assembly includes several The muffler sheets are distributed in parallel at intervals, and the muffler sheets are arranged along the central axis of the body shell of the muffler tower. The muffler tower proposed by the present invention can arbitrarily add muffler structures according to the user's requirements on the amount of muffling to increase the muffler. the purpose of volume.
Description
Technical Field
The invention relates to the field of silencing devices, in particular to an impedance composite silencing tower with an oil-gas separation function.
Background
A muffler tower is a noise reduction device installed in an engine exhaust (e.g., engine test bench) exhaust system. The ability of the sound damping tower to block the transmission of sound waves while allowing airflow therethrough is an effective means of controlling noise. Two basic noise reduction principles of a sound-damping tower are: firstly, the diffusion cavity can reduce peak noise in a more concentrated frequency band; sound absorbing materials provide a balanced noise reduction effect over a wide frequency range. The existing noise elimination tower is not enough in noise reduction effect and not flexible in noise reduction structure, and the noise reduction effect cannot be increased or decreased properly according to the requirements of users.
Therefore, a new technical solution is needed to solve the above problems.
Disclosure of Invention
The existing noise elimination tower has insufficient noise reduction effect and inflexible noise reduction structure, and cannot be increased or decreased properly according to the requirements of users. The invention aims to solve the problems in the prior art and provides an impedance composite type noise elimination tower, which adopts the following technical scheme:
an impedance composite type noise elimination tower comprises a first noise elimination device and a second noise elimination device, wherein the first noise elimination device comprises a diffusion pipe, one end of the diffusion pipe is provided with an inlet, the other end of the diffusion pipe is provided with an end socket, the side wall of the diffusion pipe is provided with a plurality of small through holes,
the second noise eliminator comprises a body shell of the noise elimination tower and one or more groups of noise elimination structures in the body shell, the body shell of the noise elimination tower is provided with a containing cavity and an opening communicated with the containing cavity, the diffusion pipe is provided with one end of the seal head, the opening is contained in the containing cavity, the noise elimination structures comprise a resistance noise elimination assembly and a resistance noise elimination assembly, the resistance noise elimination assembly comprises a plurality of noise elimination sheets distributed in parallel at intervals, the noise elimination sheets are arranged along the central axis direction of the body shell of the noise elimination tower, one end of each noise elimination sheet is close to the diffusion pipe, and the other end of each noise elimination sheet faces away from the diffusion pipe and extends until the resistance noise elimination assembly is connected.
Further, in the technical scheme, a plurality of groups of the silencing structures are sequentially arranged in the accommodating cavity from the upper part of the diffusion pipe, and the resistant silencing assembly of one group of the silencing structures is connected with the resistant silencing assembly of the other group of the silencing structures; the resistive silencing component in the silencing structure is connected with the reactive silencing component, and the resistive silencing component in the silencing structure is closer to the diffusion pipe relative to the reactive silencing component; the multiple groups of the silencing structures are communicated.
Furthermore, each silencing sheet is provided with an interlayer cavity, and stainless steel wire sound-absorbing cotton is arranged in the interlayer cavity.
Furthermore, the resistance noise elimination assembly comprises an expansion cavity, the expansion cavity is provided with an upper cavity top and a lower cavity bottom, one end, far away from the diffusion pipe, of each noise elimination sheet is connected with the lower cavity bottom, a gap is formed between every two adjacent noise elimination sheets in the resistance noise elimination assembly, and the gap is communicated with the expansion cavity through the lower cavity bottom.
Furthermore, an oil-gas separation device and an expansion chamber are further arranged between the silencing structure and the diffusion pipe, the oil-gas separation device is provided with a gas inlet and a gas outlet, the gas outlet is communicated with the expansion chamber, the expansion chamber is communicated with the silencing structure, airflow flows into the diffusion pipe from an inlet of the diffusion pipe, then flows into the oil-gas separation device from a gas inlet of the oil-gas separation device through a plurality of small through holes in the diffusion pipe, and the airflow is filtered by the oil-gas separation device and then flows into the expansion chamber from the gas outlet of the oil-gas separation device.
Furthermore, a circle of sound-absorbing boards is arranged on the inner wall of a containing cavity of the body shell of the sound-absorbing tower in a surrounding mode, the outer diameter of a cylinder body formed by winding the circle of sound-absorbing boards is smaller than the inner diameter of the containing cavity, and sound-absorbing cotton is filled between the cylinder body and the inner wall of the containing cavity; each silencing sheet is connected with the sound-absorbing plate.
Further, the body shell of amortization tower is the cylinder, the cylinder has first end and second end, be provided with the head on the first end, the opening setting of body shell is being close to the one end of first end, the top of head is provided with the oil collector and oleophobic pipe, the oil collector with oleophobic pipe all with the head intercommunication, the export of oil collector with it is linked together to oleophobic pipe.
Furthermore, a rain cover is arranged at the second end of the column body and supported on the body shell of the silencing tower, and the diameter of the rain cover is larger than the outer diameter of the body shell of the silencing tower.
Furthermore, the outer wall of the body shell of the silencing tower is provided with support legs, and the silencing tower is supported on a plane through the support legs in a standing mode.
Furthermore, a lifting lug is arranged on the outer wall of the body shell of the silencing tower.
Furthermore, a manhole door is arranged on a shell of the body of the silencing tower and is arranged on the cavity wall of the expansion cavity in the silencing tower.
Compared with the prior art, the impedance composite type noise elimination tower provided by the invention combines the resistance structure and the resistance structure according to a certain mode, so that the sound absorption capacity is improved, and the noise elimination function is improved; the silencing tower can be added with a silencing structure according to the requirement of a user on the silencing quantity to achieve the purpose of increasing the silencing quantity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic cross-sectional view of a muffler tower according to the present invention;
FIG. 2 is a schematic cross-sectional view of the muffler tower of the present invention taken along the direction A-A;
fig. 3 is a schematic cross-sectional structure of the muffler tower of the present invention taken along the direction B-B.
Wherein, 10-body shell; 11-a first end; 12-an oil collector; 13-oil dredging pipe; 14-rain cover; 15-a support leg; 16-a lifting lug; 17-manhole door;
20-a diffuser tube; 21-inlet;
30-a sound-deadening structure; 31-a sound-deadening sheet; 32-stainless steel wire sound-absorbing cotton;
40-expanding the cavity; 41-upper chamber top; 42-lower cavity bottom;
50-an oil-gas separation device; 51-an air inlet; 52-air outlet;
60-an expansion chamber;
70-sound absorbing panel.
Detailed Description
The technical solutions of the embodiments of the present invention will be described below in detail by referring to the drawings of 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 "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The gist of the present invention will be further explained below with reference to the accompanying drawings and examples.
Example (b):
the existing noise elimination tower has insufficient noise reduction effect and inflexible noise reduction structure, and cannot be increased or decreased properly according to the requirements of users. The invention aims to solve the problems in the prior art and provide an impedance composite type noise elimination tower, which combines a resistance structure and a resistance structure according to a certain mode, and can improve the sound absorption and the noise elimination effect.
The following describes in detail an impedance composite muffler tower according to the present invention with reference to the accompanying drawings 1-3:
referring to fig. 1, a schematic cross-sectional structure of a sound-damping tower according to the present invention includes a first sound-damping device and a second sound-damping device, wherein,
the first silencing device comprises a diffusion pipe 20, one end of the diffusion pipe 20 is provided with an inlet 21, the other end of the diffusion pipe 20 is provided with an end enclosure, the side wall of the diffusion pipe 20 is provided with a plurality of small through holes,
the second noise eliminator includes the body shell 10 of noise elimination tower, and holds a set of or multiunit noise elimination structure 30 in the body shell 10, the body shell 10 of noise elimination tower have hold the chamber, and with hold the opening of chamber intercommunication, the diffusion tube 20 has the one end of head certainly the opening holds in hold the intracavity, noise elimination structure 30 includes resistive noise elimination subassembly and resistance noise elimination subassembly, resistive noise elimination subassembly includes the noise elimination piece 31 of the parallel interval distribution of a plurality of, noise elimination piece 31 is followed the central axis direction setting of the body shell 10 of noise elimination tower, the one end of noise elimination piece 31 is close to diffusion tube 20, and the other end orientation is kept away from the direction extension of diffusion tube 20, until with resistance noise elimination subassembly meets.
In an embodiment, with continued reference to fig. 1, in the impedance composite muffling tower of the present invention, a plurality of sets of the muffling structures 30 are sequentially arranged in the accommodating cavity from above the diffuser 20, and the reactive muffling assembly of one set of the muffling structures 30 is connected to the resistive muffling assembly of another set of the muffling structures 30; the resistive silencing component and the reactive silencing component in one group of silencing structures 30 are connected, and the resistive silencing component in the group of silencing structures 30 is closer to the diffusion pipe 20 than the reactive silencing component; the multiple groups of the silencing structures 30 are communicated.
In one embodiment, with continued reference to fig. 1, each of the acoustical panels 31 of the present invention has a sandwich cavity with stainless steel wire acoustical wool 32 disposed within the sandwich cavity.
In one embodiment, with continued reference to fig. 1, the reactive muffler assembly of the present invention includes a cavity 40, the cavity 40 has an upper cavity top 41 and a lower cavity bottom 42, one end of each muffler plate 31 away from the diffuser 20 is connected to the lower cavity bottom 42, and a gap is formed between two adjacent muffler plates 31 in the resistive muffler assembly, and the gap is communicated with the cavity 40 through the lower cavity bottom 42.
In an embodiment, with continued reference to fig. 1, an oil-gas separation device 50 and an expansion chamber 60 are further disposed between the muffler structure 30 and the diffuser pipe 20, the oil-gas separation device 50 has a gas inlet 51 and a gas outlet 52, the gas outlet 52 is communicated with the expansion chamber 60, and the expansion chamber 60 is communicated with the muffler structure 30.
When the silencing tower is used for treating tail gas, airflow flows into the diffusion pipe 20 from the inlet 21 of the diffusion pipe 20, then flows into the oil-gas separation device 50 from the air inlet 51 of the oil-gas separation device 50 through a plurality of small through holes in the diffusion pipe 20, and flows into the expansion chamber 60 from the air outlet 52 of the oil-gas separation device 50 after being filtered by the oil-gas separation device 50.
In one embodiment, with continued reference to fig. 1, a circle of sound-absorbing boards 70 is arranged around the inner wall of the accommodating cavity of the body casing 10 of the silencer tower, the outer diameter of a cylinder body formed by winding the circle of sound-absorbing boards 70 is smaller than the inner diameter of the accommodating cavity, and sound-absorbing cotton is filled between the cylinder body and the inner wall of the accommodating cavity; each of the muffling sheets 31 is attached to the sound-absorbing plate 70.
In an embodiment, with continuing reference to fig. 1, a body shell 10 of the sound attenuation tower is a cylinder, the cylinder has a first end 11 and a second end, the first end 11 is provided with a seal head, an opening of the body shell 10 is disposed at one end close to the first end 11, the top of the seal head is provided with an oil collector 12 and an oil-repellent pipe 13, the oil collector 12 and the oil-repellent pipe 13 are both communicated with the seal head, and an outlet of the oil collector 12 is communicated with the oil-repellent pipe 13.
In an embodiment, with continued reference to fig. 1, a rain cover 14 is disposed on the second end of the column body of the present invention, the rain cover 14 is supported on the body casing 10 of the sound attenuation tower, and the diameter of the rain cover 14 is larger than the outer diameter of the body casing 10 of the sound attenuation tower.
In one embodiment, with continued reference to fig. 1, the outer wall of the body shell 10 of the sound-damping tower of the present invention is provided with legs 15, and the sound-damping tower is rested on a plane by the legs 15.
In one embodiment, with continued reference to fig. 1, the outer wall of the body shell 10 of the silencer tower of the present invention is provided with lifting lugs 16.
In an embodiment, with continued reference to fig. 1, the body shell 10 of the sound-absorbing tower of the present invention is provided with a manhole door 17, and the manhole door 17 is opened on the wall of the expansion cavity 40 in the sound-absorbing tower.
The silencing tower effectively combines the characteristics of reflection technology and resonance energy consumption, integrates the functions of oil-gas separation (purifying the quality of the atmosphere) and reducing the emission noise, and can be added with a silencing structure at will according to the requirement of a user on the silencing quantity to achieve the purpose of increasing the silencing quantity.
When the silencing tower is used for treating tail gas, the tail gas enters a diffusion pipe of the silencing tower, the top end of the diffusion pipe is sealed by an end enclosure, a plurality of small holes are drilled on the side wall of the diffusion pipe, airflow is divided into a plurality of small injection flows by the small holes, a high acoustic impedance and a low flow resistance are provided, part of sound energy is reflected back, part of sound energy is weakened on an enlarged surface and in a reflection chamber, the frequency of part of sound energy is improved, and the effect of a subsequent silencer is fully exerted. Further, the gas flow then enters the oil-gas separation device, where the oil-gas separation is achieved, and then enters the expansion chamber, which is a large space where the gas flow is expanded and decelerated. Further, the air flow then enters the sound attenuating structure. The noise elimination structure is different from a common pure resistive muffler, and the main improvement is that a 'resistive' noise elimination measure is added on the basis of a resistive noise elimination sheet, and the outlet of each section of the noise elimination sheet is provided with a channel area sudden expansion, so that airflow is reduced in pressure and speed for multiple times, sound waves are reflected and absorbed for multiple times, and the attenuation of the sound waves is achieved. The resistive silencing section (silencing structure) is composed of a plurality of flat sound absorbing sheets with different widths. The design of the noise elimination structure comprehensively considers the noise elimination effect, the flow resistance, the regeneration noise, the high-frequency failure, the maintenance and the like, and the design optimizes the thickness, the blockage ratio and the resistive segment length of the noise absorption sheet.
The silencing structures of the silencing tower can be installed in groups, and the specific installation of a plurality of groups of silencing structures as the silencing tower can be determined according to the needs of users. The sound attenuation structure utilizes the friction and viscous resistance generated by sound waves passing through the porous metal pore plate in sound absorption fibers to convert sound energy into heat energy to be dissipated, thereby achieving the aim of sound attenuation. Each group is composed of two parts of resistance and resistance, has great flexibility, and can be implemented according to the requirements of projects and according to two groups, three groups, even four groups, five groups and the like.
For convenient maintenance and washing, this noise elimination tower has set up the manhole door (can have a plurality of manhole doors on noise elimination tower body shell to in maintenance wash for the purpose, adapt to the installation according to user's needs, be equipped with in noise elimination tower body shell bottom and dredge oily and drain device (dredge oil pipe).
When the silencing tower is used for tail gas treatment, airflow firstly enters a resistant part of the silencing tower, the resistant silencing tower is structurally a straight pipe with a closed tail end, and a plurality of small holes (namely diffusion pipes) are drilled on the pipe wall. The principle of the small-hole silencing tower is based on the frequency spectrum of jet noise, the total area of the jet ports is kept unchanged, and a plurality of small jet ports are used for replacing the small jet ports, when airflow passes through the small holes, the frequency spectrum of the jet noise moves to high frequency or ultrahigh frequency, audible sound components in the frequency spectrum are obviously reduced, and therefore interference and damage to people are reduced. When the medium enters a resistive noise elimination tower (noise elimination structure) after frequency shift, pressure reduction and flow equalization, the resistive noise elimination tower mainly reduces noise by using a stainless steel wire porous sound absorption material. When sound waves enter the resistive silencing tower, a part of sound energy is rubbed in pores of the porous material and is converted into heat energy to be dissipated, so that the sound waves passing through the silencing tower are weakened, and the aim of silencing is fulfilled.
In conclusion, the impedance composite type noise elimination tower provided by the invention combines the resistance structure and the resistance structure according to a certain mode, so that the sound absorption capacity is improved, and the noise elimination function is improved; the silencing tower can be added with a silencing structure according to the requirement of a user on the silencing quantity to achieve the purpose of increasing the silencing quantity.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.
While embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications and variations may be made therein by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. An impedance composite type noise elimination tower is characterized by comprising a first noise elimination device and a second noise elimination device, wherein,
the first silencing device comprises a diffusion pipe (20), one end of the diffusion pipe (20) is provided with an inlet (21), the other end of the diffusion pipe is provided with an end enclosure, the side wall of the diffusion pipe (20) is provided with a plurality of small through holes,
the second silencing device comprises a body shell (10) of the silencing tower and one or more groups of silencing structures (30) accommodated in the body shell (10), the body shell (10) of the silencing tower is provided with an accommodating cavity, and an opening communicated with the accommodating cavity, wherein one end of the diffusion pipe (20) with the seal head is accommodated in the accommodating cavity from the opening, the noise elimination structure (30) comprises a resistive noise elimination assembly and a reactive noise elimination assembly, the resistive noise elimination assembly comprises a plurality of noise elimination sheets (31) which are distributed in parallel at intervals, the silencing sheet (31) is arranged along the central axis direction of the body shell (10) of the silencing tower, one end of the silencing sheet (31) is close to the diffusion pipe (20), and the other end of the silencing sheet extends towards the direction far away from the diffusion pipe (20) until the silencing sheet is connected with the reactive silencing assembly.
2. The impedance compound muffler tower of claim 1,
the multiple groups of silencing structures (30) are sequentially arranged in the accommodating cavity from the upper part of the diffusion pipe (20), and the resistant silencing assembly of one group of silencing structures (30) is connected with the resistant silencing assembly of the other group of silencing structures (30);
the resistive silencing component and the reactive silencing component in one group of silencing structures (30) are connected, and the resistive silencing component in the group of silencing structures (30) is closer to the diffusion pipe (20) than the reactive silencing component;
the multiple groups of the silencing structures (30) are communicated.
3. The impedance compound muffler tower of claim 1,
each silencing sheet (31) is provided with an interlayer cavity, and stainless steel wire sound-absorbing cotton (32) is arranged in the interlayer cavity;
the reactive noise elimination assembly comprises an expansion cavity (40), the expansion cavity (40) is provided with an upper cavity top (41) and a lower cavity bottom (42), one end, far away from the diffusion pipe (20), of the noise elimination sheet (31) is connected with the lower cavity bottom (42),
a gap is formed between every two adjacent silencing sheets (31) in the resistive silencing assembly, and the gap is communicated with the expansion cavity (40) through the lower cavity bottom (42).
4. The impedance compound muffler tower of claim 1,
an oil-gas separation device (50) and an expansion chamber (60) are further arranged between the silencing structure (30) and the diffusion pipe (20), the oil-gas separation device (50) is provided with a gas inlet (51) and a gas outlet (52), the gas outlet (52) is communicated with the expansion chamber (60), the expansion chamber (60) is communicated with the silencing structure (30),
airflow flows into the diffusion pipe (20) from an inlet (21) of the diffusion pipe (20), then flows into the oil-gas separation device (50) from an air inlet (51) of the oil-gas separation device (50) through a plurality of small through holes in the diffusion pipe (20), and flows into the expansion chamber (60) from an air outlet (52) of the oil-gas separation device (50) after being filtered by the oil-gas separation device (50).
5. The impedance compound muffler tower of claim 1,
a circle of sound-absorbing boards (70) is arranged on the inner wall of a containing cavity of a body shell (10) of the sound-absorbing tower in a surrounding mode, the outer diameter of a cylinder body formed by winding the circle of sound-absorbing boards (70) is smaller than the inner diameter of the containing cavity, and sound-absorbing cotton is filled between the cylinder body and the inner wall of the containing cavity;
each silencing sheet (31) is connected with the sound-absorbing plate (70).
6. The impedance compound muffler tower of claim 1,
the body shell (10) of the silencing tower is a cylinder body, the cylinder body is provided with a first end (11) and a second end, a seal head is arranged on the first end (11), an opening of the body shell (10) is arranged at one end close to the first end (11),
the top of head is provided with oil collector (12) and oleophobic pipe (13), oil collector (12) and oleophobic pipe (13) all with the head intercommunication, the export of oil collector (12) with it is linked together to dredge oil pipe (13).
7. The impedance compound muffler tower of claim 6,
be provided with rain-proof cover (14) on the second end of cylinder, rain-proof cover (14) support in on body shell (10) of amortization tower, the diameter of rain-proof cover (14) is greater than the external diameter of body shell (10) of amortization tower.
8. The impedance compound muffler tower of claim 1,
the outer wall of the body shell (10) of the silencing tower is provided with supporting legs (15), and the silencing tower is supported on a plane in a standing mode through the supporting legs (15).
9. The impedance compound muffler tower of claim 1,
the outer wall of the body shell (10) of the silencing tower is provided with a lifting lug (16).
10. The impedance compound muffler tower of claim 3,
a manhole door (17) is arranged on a body shell (10) of the silencing tower, and the manhole door (17) is arranged on the cavity wall of an expansion cavity (40) in the silencing tower.
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| CN202011628615.0A CN112627939A (en) | 2020-12-31 | 2020-12-31 | Impedance composite silencing tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115717560A (en) * | 2023-01-09 | 2023-02-28 | 江苏大学 | A multi-stage thermoelectric power generation device with integrated tail gas silencing function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115717560A (en) * | 2023-01-09 | 2023-02-28 | 江苏大学 | A multi-stage thermoelectric power generation device with integrated tail gas silencing function |
| CN115717560B (en) * | 2023-01-09 | 2025-04-08 | 江苏大学 | Multistage thermoelectric generation device integrating tail gas silencing function |
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Application publication date: 20210409 |