CN218631380U - Composite silencer for large-displacement steam discharge noise reduction - Google Patents
Composite silencer for large-displacement steam discharge noise reduction Download PDFInfo
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- CN218631380U CN218631380U CN202222810430.2U CN202222810430U CN218631380U CN 218631380 U CN218631380 U CN 218631380U CN 202222810430 U CN202222810430 U CN 202222810430U CN 218631380 U CN218631380 U CN 218631380U
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- branch pipe
- throttling
- noise reduction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The utility model discloses a composite silencer for noise reduction in large-displacement steam emission, which comprises a silencer body, wherein an inlet pipe is integrally arranged at the lower end of the silencer body, a branch pipe is arranged in a first cavity, the upper end of the branch pipe penetrates through a second cavity and then is communicated with a third cavity, the branch pipe is arranged at a second cavity section and is provided with a plurality of branch pipe holes, and a resonance cylinder is arranged in the second cavity; a sawtooth silencing ring is fixedly arranged at the outlet at the upper end of the branch pipe; a plurality of flow guide pipes are arranged between the third cavity and the fourth cavity, a spiral cylinder is arranged between the fourth cavity and the fifth cavity, a throttling cylinder is arranged between the sixth cavity and the seventh cavity, the upper end of the throttling cylinder is communicated with the seventh cavity, a jetting cylinder is arranged between the seventh cavity and the eighth cavity, the upper end of the jetting cylinder is communicated with the eighth cavity, and the upper end of the eighth cavity is communicated with the outlet guide ring. Above-mentioned technical scheme, structural design is reasonable, noise cancelling effect is good, the emission noise is little, long service life and practicality are good.
Description
Technical Field
The utility model relates to a big discharge capacity steam medium noise elimination equipment technical field, concretely relates to compound muffler that is used for big discharge capacity steam emission to fall and makes an uproar.
Background
The silencer is common industrial equipment and is applied to multiple industries such as thermal power plants, petrochemical plants, nuclear power plants and the like. According to the silencing principle, the silencer is mainly divided into three types of resistance silencing, resistance silencing and impedance combined silencing. The resistance noise elimination refers to that a sound absorption material is attached to the inner wall of the internal flow channel, and the sound absorption material is utilized to convert the friction of sound energy in the pores of the porous medium into heat energy which is dissipated, so that the passing sound energy is reduced. The reactive noise elimination means that the flow speed and the pressure change obviously by changing the flowing sectional area or increasing the resonant cavity, so as to generate the reflection and interference of sound energy, thereby reducing the sound energy radiated out and achieving the purpose of noise reduction. In practical application, resistive sound attenuation and reactive sound attenuation are combined to form a composite muffler so as to achieve a good sound attenuation effect.
However, generally, in the case of discharging steam with a large displacement, the structure of the silencer has disadvantages: the existing silencer used in the place of discharging steam with larger discharge capacity adopts a throttling injection principle and sound absorption materials to carry out silencing, the silencing effect is not ideal, the discharged noise is large, the life and the ecological environment of surrounding residents can be influenced, and the practicability is poor.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a compound muffler that is used for big discharge capacity steam emission to fall and makes an uproar that structural design is reasonable, noise cancelling effect is good, the emission noise is little, long service life and practicality are good.
In order to achieve the above purpose, the utility model provides a following technical scheme: a composite silencer for reducing noise in large-displacement steam emission comprises a silencer body, wherein an inlet pipe is integrally arranged at the lower end of the silencer body, and an outlet guide ring is integrally arranged at the upper end of the silencer body;
a first cavity, a second cavity, a third cavity, a fourth cavity, a fifth cavity, a sixth cavity, a seventh cavity and an eighth cavity are arranged in the silencer body, a branch pipe is arranged in the first cavity, the upper end of the branch pipe penetrates through the second cavity and then is communicated with the third cavity, a plurality of branch pipe holes are formed in the section, located in the second cavity, of the branch pipe, a resonance cylinder is arranged in the second cavity, and the resonance cylinder is located around the branch pipe holes;
a sawtooth silencing ring is fixedly arranged at an outlet at the upper end of the branch pipe;
a plurality of flow guide pipes are arranged between the third cavity and the fourth cavity, a spiral cylinder is arranged between the fourth cavity and the fifth cavity, the upper end of the spiral cylinder is communicated with the sixth cavity, a throttling cylinder is arranged between the sixth cavity and the seventh cavity, the upper end of the throttling cylinder is communicated with the seventh cavity, an injection cylinder is arranged between the seventh cavity and the eighth cavity, the upper end of the injection cylinder is communicated with the eighth cavity, and the upper end of the eighth cavity is communicated with the outlet guide ring.
The utility model discloses further set up to: the upper end of the throttling cylinder is provided with a throttling cover plate, the throttling cover plate and the top of the throttling cylinder are integrally arranged or hinged through a pin shaft, the wall of the throttling cylinder is provided with a plurality of throttling holes, and the diameter of each throttling hole is 8mm.
The utility model discloses still further set up to: the upper end of the injection cylinder is provided with an injection cover plate, the injection cover plate and the top of the injection cylinder are integrally arranged or hinged through a pin shaft, and a plurality of partition plates are arranged in the injection cylinder.
The utility model discloses still further set up to: the number of the partition plates in the injection cylinder is more than four, the partition plates are fixedly connected with the cylinder wall of the injection cylinder, the injection cylinder is located above the fourth partition plate and provided with a plurality of injection cylinder holes, and the diameter of each injection cylinder hole is 3mm.
The utility model discloses still further set up to: be provided with the protection section of thick bamboo around the eighth cavity, the inlayer of protection section of thick bamboo is provided with inlayer aperture and sound absorbing material layer, sound absorbing material layer and the internal face bonding of protection section of thick bamboo are fixed, and the diameter of inlayer aperture is 8mm.
The utility model discloses still further set up to: the utility model discloses a protection section of thick bamboo, including protection section of thick bamboo, the protection section of thick bamboo is provided with the urceolus outward, it puts the thing cavity to form one between protection section of thick bamboo and the urceolus, protection section of thick bamboo and urceolus fixed connection, sound absorbing material fills puts the thing cavity between protection section of thick bamboo and urceolus.
The utility model has the advantages that: the utility model has reasonable structure, utilizes the throttling injection pressure reduction and cooling, is provided with auxiliary resonance cylinder, sawtooth silencing ring, spiral cylinder, protective cylinder filled with sound absorbing material and other parts for combination noise reduction, has large sound transmission loss and good noise reduction effect, can reduce the emission noise to a greater extent, has small emission noise, ensures the occupational health of workers in a factory, and protects the life and ecological environment of surrounding residents; long service life and good practicability.
The invention is further described with reference to the drawings and the specific embodiments.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, the utility model discloses a composite silencer for noise reduction in large-displacement steam emission, which comprises a silencer body 1, wherein an inlet pipe 2 is integrally arranged at the lower end of the silencer body 1, and an outlet guide ring 3 is integrally arranged at the upper end of the silencer body 1;
a first cavity 11, a second cavity 12, a third cavity 13, a fourth cavity 14, a fifth cavity 15, a sixth cavity 16, a seventh cavity 17 and an eighth cavity 18 are arranged in the silencer body 1, a branch pipe 4 is arranged in the first cavity 11, the upper end of the branch pipe 4 penetrates through the second cavity and then is communicated with the third cavity 13, a plurality of branch pipe holes 41 are formed in the second cavity section of the branch pipe 4, a resonant cylinder 5 is arranged in the second cavity 12, and the resonant cylinder 5 is arranged around the branch pipe holes 41; eliminating a part of low-frequency noise by using a resonance principle;
a sawtooth silencing ring 42 is fixedly arranged at the outlet of the upper end of the branch pipe 4;
a plurality of flow guide pipes 6 are arranged between the third cavity 13 and the fourth cavity 14, fluid is guided to enter the fourth cavity 14 from the third cavity 13, and noise is reduced by using the throttling and diffusion principles;
a spiral cylinder 7 is arranged between the fourth cavity 14 and the fifth cavity 15, the upper end of the spiral cylinder 7 is communicated with a sixth cavity 16, a throttling cylinder 8 is arranged between the sixth cavity 16 and a seventh cavity 17, the upper end of the throttling cylinder 8 is communicated with the seventh cavity 17, an injection cylinder 9 is arranged between the seventh cavity 17 and an eighth cavity 18, the upper end of the injection cylinder 9 is communicated with the eighth cavity 18, and the upper end of the eighth cavity 18 is communicated with the outlet guide ring 3. Preferably, the bottom of the spiral cylinder 7 is not blocked and is used for communicating the fourth cavity 14 with the fifth cavity 15, a spiral component is installed in the spiral cylinder 7 and consists of a spiral sheet and a central supporting tube, the spiral sheet increases the length of a flow channel, and the noise is reduced by utilizing the principle of increasing energy consumption;
preferably, all the components are made of stainless steel materials, and adjacent components are connected and fixed through welding or bolts to form an integral structure, so that the noise reduction device is suitable for noise reduction of high-temperature and high-pressure steam media.
The inlet pipe 1 and the branch pipes 4 are integrally arranged, the inlet pipe 11 is divided into two branch pipes 10 in the first cavity 12, the flow area is increased, the flow speed is reduced, and the noise source is reduced.
For making the utility model discloses the structure sets up more rationally, as preferred, this embodiment 8 upper ends of a throttle section of thick bamboo are provided with the throttle apron, the throttle apron is articulated with 8 integrative settings in top of a throttle section of thick bamboo or through the round pin axle constitution, a plurality of orifices have been seted up on the section of thick bamboo wall of a throttle section of thick bamboo 8, the diameter of orifice is 8mm. The principle of jet frequency shift is used for noise reduction.
The upper end of the injection cylinder 9 is provided with an injection cover plate, the injection cover plate and the top of the injection cylinder 9 are integrally arranged or hinged through a pin shaft, and a plurality of partition plates 91 are arranged in the injection cylinder 9. Preferably, the outer cylinder and the conical end enclosure are arranged outside the injection cylinder 9, and the outer cylinder and the conical end enclosure are separated by a partition plate. An eighth cavity 18 is formed between the spray cylinder 9 and the outer cylinder for guiding the fluid to be discharged upwards.
The number of the partition boards 91 in the injection cylinder 9 is more than four, the partition boards 91 are fixedly connected with the cylinder wall of the injection cylinder 9, a plurality of injection cylinder holes are formed in the positions, located above the fourth partition board, of the injection cylinder 9, and the diameter of each injection cylinder hole is 3mm.
A protection cylinder is arranged around the eighth cavity 18, an inner layer of the protection cylinder is provided with inner-layer small holes and a sound-absorbing material layer, the sound-absorbing material layer is fixedly bonded with the inner wall surface of the protection cylinder, and the diameter of each inner-layer small hole is 8mm.
The utility model discloses a protection barrel, including a protection barrel, a protection barrel 10, a thing cavity is put to formation between protection barrel 10 and the urceolus, protection barrel and urceolus 10 fixed connection, sound absorbing material fills in the thing cavity of putting between protection barrel and urceolus 10.
In the actual application process, the adhesive tape is coated with adhesive,
steam enters from one end of the inlet pipe 1, enters into the two branch pipes 4 from the other end, and reduces a noise source by utilizing the principle that the flow area is increased;
steam enters the third cavity 13 through the branch pipe 4, the branch pipe 4 penetrates through the second cavity 12, a branch pipe hole 41 is formed in the part of the second cavity 12, the periphery of the second cavity is provided with the resonance cylinder 5, resonance occurs through the branch pipe hole 41 and the cavity around the branch pipe hole 41, and a part of low-frequency noise is eliminated by utilizing the resonance principle;
steam is discharged through the outlet of the branch pipe 4, the outlet of the branch pipe 4 is provided with a sawtooth silencing ring 42, the original high-speed manifold is damaged by utilizing the flow interference principle, and the noise is reduced;
steam enters the fourth cavity 14 from the third cavity 13 through the draft tube 6, and the noise is further reduced by using the diffusion principle;
steam enters the fifth cavity 15 from the fourth cavity 14 through the bottom of the spiral cylinder 7 and flows out along the spiral flow channel, the circulation length is increased by utilizing the spiral flow channel, and the energy consumption is increased, so that the noise intensity is weakened;
the steam entering the fifth cavity 15 enters the sixth cavity 16 through the top of the spiral cylinder 7 and is diffused in the sixth cavity 16, so that the noise is further reduced by the diffusion principle;
the steam entering the sixth cavity 16 is discharged through the throttling cylinder 8, the top of the throttling cylinder 8 is provided with a throttling cover plate, the cylinder wall of the throttling cylinder is provided with a throttling hole with the diameter of about 8mm, the throttling hole is used for throttling and reducing pressure of the steam, and the throttling diffusion principle is utilized for reducing noise;
steam enters the seventh cavity 17 through the throttling cylinder 8, and noise is further reduced by using the diffusion principle;
steam entering the seventh cavity 17 is discharged to the eighth cavity 18 through the injection cylinder 9, the top of the injection cylinder 9 is provided with an injection cover plate, the part of the cylinder wall above the fourth partition plate is provided with an injection cylinder hole with the diameter of 3mm, and noise reduction is carried out by utilizing the injection frequency shift noise reduction principle;
the steam in the eighth cavity 18 further reduces noise through the small holes in the inner layer of the protective cylinder and the sound-absorbing material, and is exhausted upwards to the atmosphere through the outlet guide plate 3.
The utility model has reasonable structure, utilizes the throttling injection pressure reduction and cooling, is provided with auxiliary resonance cylinder, sawtooth silencing ring, spiral cylinder, protective cylinder filled with sound absorbing material and other parts for combination noise reduction, has large sound transmission loss and good noise reduction effect, can reduce the emission noise to a greater extent, has small emission noise, ensures the occupational health of workers in a factory and protects the life and ecological environment of surrounding residents; except for the sound insulation material, each part is made of stainless steel materials, so that the service life is long, the noise reduction device is suitable for noise reduction of high-temperature and high-pressure steam media, and the practicability is good.
The above-mentioned embodiment is right the utility model specifically describes, only is used for going on further the explanation to the utility model, can not understand right the utility model discloses the limited of scope of protection, and technical engineer in this field is right according to above-mentioned utility model's content the utility model discloses make some non-essential improvements and adjustment all fall into within the scope of protection of the utility model.
Claims (6)
1. A composite muffler for large displacement steam discharge noise reduction, comprising a muffler body (1), characterized in that: an inlet pipe (2) is integrally arranged at the lower end of the silencer body (1), and an outlet guide ring (3) is integrally arranged at the upper end of the silencer body (1);
a first cavity (11), a second cavity (12), a third cavity (13), a fourth cavity (14), a fifth cavity (15), a sixth cavity (16), a seventh cavity (17) and an eighth cavity (18) are arranged in the silencer body (1), a branch pipe (4) is arranged in the first cavity (11), the upper end of the branch pipe (4) penetrates through the second cavity and then is communicated with the third cavity (13), a plurality of branch pipe holes (41) are formed in the second cavity section of the branch pipe (4), a resonance cylinder (5) is arranged in the second cavity (12), and the resonance cylinder (5) is located around the branch pipe holes (41);
a sawtooth silencing ring (42) is fixedly arranged at the outlet of the upper end of the branch pipe (4);
be provided with a plurality of honeycomb ducts (6) between third cavity (13) and fourth cavity (14), be provided with spiral shell (7) between fourth cavity (14) and fifth cavity (15), spiral shell (7) upper end and sixth cavity (16) intercommunication, be provided with throttle cylinder (8) between sixth cavity (16) and seventh cavity (17), throttle cylinder (8) upper end and seventh cavity (17) intercommunication, be provided with between seventh cavity (17) and eighth cavity (18) and spout a section of thick bamboo (9), spout a section of thick bamboo (9) upper end and eighth cavity (18) intercommunication, eighth cavity (18) upper end and export guide ring (3) intercommunication.
2. A composite muffler for noise reduction of large volume steam emissions as claimed in claim 1, wherein: the upper end of the throttling cylinder (8) is provided with a throttling cover plate, the throttling cover plate and the top of the throttling cylinder (8) are integrally arranged or hinged through a pin shaft, the cylinder wall of the throttling cylinder (8) is provided with a plurality of throttling holes, and the diameter of each throttling hole is 8mm.
3. A composite muffler for noise reduction of large volume steam emissions as claimed in claim 2, wherein: the upper end of the injection cylinder (9) is provided with an injection cover plate, the injection cover plate and the top of the injection cylinder (9) are integrally arranged or hinged through a pin shaft, and a plurality of partition plates (91) are arranged in the injection cylinder (9).
4. A composite muffler for noise reduction of large volume steam emissions as claimed in claim 3, wherein: the quantity of baffle (91) in spouting section of thick bamboo (9) sets up more than four, and baffle (91) all with the section of thick bamboo wall fixed connection of spouting section of thick bamboo (9), spout section of thick bamboo (9) and be located the position more than the fourth baffle and be provided with a plurality of spouting cylinder holes, the diameter in spouting cylinder hole is 3mm.
5. A composite muffler for large volume steam emission noise reduction according to claim 4, wherein: a protection cylinder is arranged around the eighth cavity (18), an inner layer of the protection cylinder is provided with inner-layer small holes and a sound-absorbing material layer, the sound-absorbing material layer is fixedly bonded with the inner wall surface of the protection cylinder, and the diameter of each inner-layer small hole is 8mm.
6. The composite muffler for large volume steam discharge noise reduction according to claim 5, wherein: the utility model discloses a protection barrel, including protection barrel and urceolus (10), be provided with urceolus (10) outside the protection barrel, it puts the thing cavity to form one between protection barrel and urceolus (10), protection barrel and urceolus (10) fixed connection, sound absorbing material fills puts the thing cavity between protection barrel and urceolus (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222810430.2U CN218631380U (en) | 2022-10-25 | 2022-10-25 | Composite silencer for large-displacement steam discharge noise reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222810430.2U CN218631380U (en) | 2022-10-25 | 2022-10-25 | Composite silencer for large-displacement steam discharge noise reduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218631380U true CN218631380U (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222810430.2U Active CN218631380U (en) | 2022-10-25 | 2022-10-25 | Composite silencer for large-displacement steam discharge noise reduction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218631380U (en) |
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2022
- 2022-10-25 CN CN202222810430.2U patent/CN218631380U/en active Active
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