CN107044326B - Nuclear power unit muffler - Google Patents
Nuclear power unit muffler Download PDFInfo
- Publication number
- CN107044326B CN107044326B CN201710406165.2A CN201710406165A CN107044326B CN 107044326 B CN107044326 B CN 107044326B CN 201710406165 A CN201710406165 A CN 201710406165A CN 107044326 B CN107044326 B CN 107044326B
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- CN
- China
- Prior art keywords
- silencing
- muffler
- plate
- connecting pipe
- nuclear power
- 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.)
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Links
- 230000030279 gene silencing Effects 0.000 claims abstract description 76
- 230000003584 silencer Effects 0.000 claims abstract description 32
- 239000006096 absorbing agent Substances 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 abstract description 21
- 238000000034 method Methods 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000008030 elimination Effects 0.000 description 9
- 238000003379 elimination reaction Methods 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000002277 temperature effect Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 239000006098 acoustic absorber Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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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 ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/007—Apparatus used as intake or exhaust silencer
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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 the gases passing 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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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a nuclear power unit silencer, which comprises a silencing barrel, a connecting pipe, an exhaust port, a multi-stage silencing body and a sound absorber, wherein the multi-stage silencing body and the sound absorber are arranged in the silencing barrel; the exhaust port is arranged at the side of the top of the silencing cylinder body, and the sound absorber is arranged in the exhaust port; the top of the connecting pipe is provided with a sealing head; the nuclear power unit silencer provided by the invention has the advantages that the noise generated in the exhaust process is greatly reduced, the noise reduction effect is good, the noise reduction standard of a nuclear power system can be met, and the noise pollution is reduced.
Description
Technical Field
The invention relates to a silencer, in particular to a silencer for a nuclear power unit.
Background
A muffler is a device that prevents sound from propagating and allows air flow to pass through, and is an important measure for eliminating aerodynamic noise. The silencer is a noise reducing device arranged on an airflow channel of aerodynamic equipment (such as equipment with larger noise at exhaust ports of a blower, an air compressor, a boiler exhaust port, a generator, a water pump and the like) or in an air inlet and exhaust system.
Along with the development of nuclear power industry in China, nuclear power accompanies our life, the dependence of human beings on non-renewable energy sources such as coal is reduced, in the nuclear power application process, the protection level and the execution standard are higher than the common standard due to the complexity of the system, and the steam exhaust noise is far higher than that of conventional equipment due to the large load in the nuclear power operation process. Therefore, the conventional muffler cannot meet the noise reduction requirement of the nuclear power system at all.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide the nuclear power unit silencer which can effectively reduce the running noise of equipment and is suitable for a nuclear power unit.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the utility model provides a nuclear power unit muffler, includes noise elimination barrel, connecting pipe, gas vent and set up in multistage noise elimination body and the acoustic absorber in the noise elimination barrel, the connecting pipe set up in the inside of noise elimination barrel stretches out the bottom of noise elimination barrel, multistage noise elimination body set up in around the connecting pipe, and multistage noise elimination body includes polylith noise elimination board that sets up side by side and sets up in upper fixed plate, the lower fixed plate of noise elimination board top and bottom; the exhaust port is arranged at the side of the top of the silencing cylinder body, and the sound absorber is arranged in the exhaust port; the top of the connecting pipe is provided with a sealing head.
By adopting the technical scheme, the invention has the beneficial effects that: due to the arrangement of the silencing cylinder body, the connecting pipe, the exhaust port, the multistage silencing body and the sound absorber, when the nuclear power system is in operation, the exhaust pipe is connected with the connecting pipe of the silencer, air flow enters the silencer from the connecting pipe, and due to the arrangement of the sealing head at the top of the connecting pipe, the air flow can only sequentially pass through a plurality of lateral silencing plates, so that the air flow is subjected to gradual noise reduction, enters the silencing cylinder body for buffering, then enters the sound absorber for absorbing sound again, and finally is discharged from the exhaust port, so that the noise generated in the exhaust process is greatly reduced, the noise reduction effect is good, the noise reduction standard of the nuclear power system can be met, and the noise pollution is reduced; in addition, the arrangement of the upper fixing plate and the lower fixing plate can ensure the stability of a plurality of silencing plates in the working process and improve the pressure bearing capacity and the working performance.
Based on the technical scheme, the invention can be further improved as follows:
as a preferable scheme, the multistage silencing body is a five-stage silencing body and sequentially comprises a first silencing plate, a second silencing plate, a third silencing plate, a fourth silencing plate and a fifth silencing plate, and the fifth silencing plate is communicated with the connecting pipe.
By adopting the preferable scheme, the air flows to the periphery, sequentially flows through the fifth silencing plate, the fourth silencing plate, the third silencing plate, the second silencing plate and the first silencing plate, and is subjected to noise reduction step by step, so that the noise reduction effect is better.
Preferably, the distance between every two silencing plates is 45-55mm.
By adopting the preferable scheme, the noise reduction effect of the device can be improved while the smooth flow of the air flow can be ensured.
As a preferable scheme, the apertures of the silencing holes of the first silencing plate, the second silencing plate, the third silencing plate, the fourth silencing plate and the fifth silencing plate are sequentially increased.
By adopting the above preferred scheme, the air flow enters each silencing plate from the connecting pipe, and the aperture of the silencing plate closest to the connecting pipe is largest, and the air flow speed is gradually decreased from inside to outside, so that the normal flow is not influenced by rapid decrease, and meanwhile, the noise is weakened step by step, and the whole noise reduction effect is better.
As the preferable scheme, the nuclear power unit silencer further comprises a gas buffer chamber, wherein the gas buffer chamber is positioned at the top of the silencing cylinder body, and the shell of the gas buffer chamber is arranged in an arc shape.
By adopting the preferable scheme, the arc-shaped gas buffer chamber is arranged, so that the gas flow can be buffered in the gas buffer chamber, and the sound absorber can be fully contacted with the gas flow, so that the noise reduction effect is further improved.
As a preferable scheme, the nuclear power unit silencer further comprises a telescopic compensation pipe.
By adopting the preferable scheme, the length of the connecting pipe is easy to generate telescopic displacement phenomenon due to high temperature effect, and the telescopic compensation pipe can be arranged to realize telescopic compensation on the length of the connecting pipe, so that the connecting pipe cannot be damaged.
Preferably, the sound absorber is connected with the silencing cylinder body and the gas buffer chamber through a supporting ring.
By adopting the preferable scheme, the support ring can effectively support the silencing body, improve the compression performance of the silencing body and prolong the service life of the silencer.
As a preferable scheme, the bottom of the silencing cylinder body is provided with a lower end socket, and the cross section of the lower end socket is semi-elliptical.
By adopting the preferable scheme, the semi-elliptic arrangement of the lower seal head ensures that the air flow can be further buffered in the silencing cylinder body, thereby improving the noise reduction effect.
Preferably, the connecting pipe is connected with the supporting ring through a fixing body.
By adopting the preferable scheme, the connection strength of the connecting pipe can be ensured, and the displacement phenomenon caused by the flow of air flow can be avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a muffler for a nuclear power unit according to the present invention.
Wherein, 1, a silencing cylinder body, 11, a lower end socket, 2, a connecting pipe, 21, an end socket, 22, a fixing body, 3, an exhaust port, 4, a sound absorber, 41, a supporting ring, 51, an upper fixing plate, 52 and a lower fixing plate, 53, a first muffler plate, 54, a second muffler plate, 55, a third muffler plate, 56, a fourth muffler plate, 57, a fifth muffler plate, 6, a gas buffer chamber, 7 and a telescopic compensation pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order to achieve the object of the present invention, as shown in fig. 1, in some embodiments of the silencer of the nuclear power unit of the present invention, it includes a silencing cylinder 1, a connection pipe 2, an exhaust port 3, and a multi-stage silencing body and a sound absorber 4 disposed in the silencing cylinder 1, the connection pipe 2 is disposed inside the silencing cylinder 1 and extends out of the bottom of the silencing cylinder 1, the multi-stage silencing body is disposed around the connection pipe 2, and the multi-stage silencing body includes a plurality of silencing plates disposed side by side, and an upper fixing plate 51 and a lower fixing plate 52 disposed at the top and bottom of the silencing plates; the exhaust port 3 is arranged at the side of the top of the silencing cylinder body 1, and the sound absorber is arranged in the exhaust port; the top of the connecting pipe is provided with a sealing head.
By adopting the technical scheme, the invention has the beneficial effects that: due to the arrangement of the silencing cylinder body 1, the connecting pipe 2, the exhaust port 3, the multistage silencing body and the sound absorber 4, when the nuclear power system is in operation, the exhaust pipe is connected with the connecting pipe 2 of the silencer, air flow enters the silencer from the connecting pipe 2, and due to the fact that the sealing head 21 is arranged at the top of the connecting pipe 2, the air flow can only sequentially pass through a plurality of lateral silencing plates, noise is reduced step by step, the air flow enters the silencing cylinder body 1 for buffering, then the air flow enters the sound absorber 4 for absorbing the sound again, and finally the air flow is discharged from the exhaust port 3, so that noise generated in the exhaust process is greatly reduced, the noise reduction effect is good, the noise reduction standard of the nuclear power system can be met, and noise pollution is reduced; in addition, the arrangement of the upper fixing plate 51 and the lower fixing plate 52 can ensure the stability of a plurality of silencing plates in the working process and improve the pressure bearing capacity and the working performance.
To further optimize the implementation effect of the present invention, as shown in fig. 1, in other embodiments of the silencer of the nuclear power unit of the present invention, the multi-stage silencer is a five-stage silencer, which sequentially includes a first silencer plate 53, a second silencer plate 54, a third silencer plate 55, a fourth silencer plate 56 and a fifth silencer plate 57, and the fifth silencer plate 57 is connected to the connection pipe.
By adopting the preferable scheme, the air flows to the periphery, and sequentially flows through the fifth muffler plate 57, the fourth muffler plate 56, the third muffler plate 55, the second muffler plate 54 and the first muffler plate 53, so that the noise reduction treatment is performed step by step, and the noise reduction effect is better.
To further optimize the practice of the present invention, as shown in FIG. 1, in other embodiments of the nuclear power unit muffler of the present invention, the spacing between each two muffler plates is 45-55mm, such as 45mm, 50mm, or 55mm. Wherein, the center distance of the holes on the muffler plate is 9-12mm, and the effect of absorbing noise is better.
By adopting the preferable scheme, the noise reduction effect of the device can be improved while the smooth flow of the air flow can be ensured.
In order to further optimize the effect of the present invention, as shown in fig. 1, in other embodiments of the silencer of the nuclear power unit of the present invention, the hole diameters of the silencing holes of the first silencing plate 53, the second silencing plate 54, the third silencing plate 55, the fourth silencing plate 56 and the fifth silencing plate 57 are sequentially increased.
By adopting the above preferred scheme, the air flow enters each silencing plate from the connecting pipe 2, and the aperture of the silencing plate closest to the connecting pipe 2 is largest, and the air flow speed is gradually decreased from inside to outside, so that the normal flow cannot be influenced by the rapid decrease, and meanwhile, the noise is weakened step by step, and the whole noise reduction effect is better.
To further optimize the implementation effect of the present invention, as shown in fig. 1, in other embodiments of the silencer of the nuclear power unit of the present invention, the silencer of the nuclear power unit further includes a gas buffer chamber 6, the gas buffer chamber 6 is located at the top of the silencing cylinder 1, and the outer shell of the gas buffer chamber 6 is disposed in an arc shape.
By adopting the above preferred scheme, the arrangement of the arc-shaped gas buffer chamber 6 enables the gas flow to be subjected to buffer treatment in the interior of the gas buffer chamber, and the sound absorber 4 can be fully contacted with the gas flow, so that the noise reduction effect is further improved.
To further optimize the effect of the present invention, as shown in fig. 1, in other embodiments of the nuclear power unit silencer of the present invention, the nuclear power unit silencer further includes a telescopic compensating pipe 7.
By adopting the above preferred scheme, the length of the connecting pipe 2 is easy to generate telescopic displacement phenomenon due to the high temperature effect, and the telescopic compensation pipe 7 can be arranged to perform telescopic compensation on the length of the connecting pipe without damaging the connecting pipe 2.
To further optimize the effect of the invention, as shown in fig. 1, in other embodiments of the nuclear power unit muffler of the invention, the sound absorber 4 connects the sound-damping cylinder 1 and the gas cushion chamber 6 via a support ring 41.
By adopting the above preferred scheme, the setting of the supporting ring 41 can effectively support the silencing body 4, improve the compression performance of the silencing body and prolong the service life of the silencer.
In order to further optimize the implementation effect of the present invention, as shown in fig. 1, in other embodiments of the silencer of the nuclear power unit of the present invention, the bottom of the silencing cylinder 1 is provided with a lower end enclosure 11, and the cross section of the lower end enclosure 11 is semi-elliptical.
By adopting the preferable scheme, the semi-elliptic arrangement of the lower seal head 11 ensures that the air flow can be further buffered in the silencing cylinder 1, thereby improving the noise reduction effect.
To further optimize the effect of the invention, as shown in fig. 1, in other embodiments of the silencer of the nuclear power unit of the present invention, the connection pipe 2 is connected to the support ring 41 through the fixing body 22.
By adopting the preferable scheme, the connection strength of the connecting pipe 2 can be ensured, and the displacement phenomenon caused by the flow of the air current can not occur.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (1)
1. The nuclear power safety system silencer is characterized by comprising a silencing barrel, a connecting pipe, an exhaust port, a multistage silencing body and a sound absorber, wherein the multistage silencing body and the sound absorber are arranged in the silencing barrel; the exhaust port is arranged at the side of the top of the silencing cylinder body, and the sound absorber is arranged in the exhaust port; the multi-stage muffler comprises a connecting pipe, a multistage muffler body, a gas buffer chamber, a telescopic compensation pipe, a sound absorber, a support ring, a lower seal head, a semi-elliptical cross section of the connecting pipe and a support ring, wherein the top of the connecting pipe is provided with the seal head, the multistage muffler body is a five-stage muffler body and sequentially comprises a first muffler plate, a second muffler plate, a third muffler plate, a fourth muffler plate and a fifth muffler plate, the fifth muffler plate is communicated with the connecting pipe, the distance between every two muffler plates is 45-55mm, the apertures of the muffler holes of the first muffler plate, the second muffler plate, the third muffler plate, the fourth muffler plate and the fifth muffler plate are sequentially increased, the gas buffer chamber is positioned at the top of the silencing cylinder, the outer shell of the gas buffer chamber is in an arc shape, the sound absorber is connected with the silencing cylinder and the gas buffer chamber through the support ring, and the bottom of the silencing cylinder is provided with the lower seal head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710406165.2A CN107044326B (en) | 2017-06-01 | 2017-06-01 | Nuclear power unit muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710406165.2A CN107044326B (en) | 2017-06-01 | 2017-06-01 | Nuclear power unit muffler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107044326A CN107044326A (en) | 2017-08-15 |
| CN107044326B true CN107044326B (en) | 2023-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710406165.2A Active CN107044326B (en) | 2017-06-01 | 2017-06-01 | Nuclear power unit muffler |
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| Country | Link |
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| CN (1) | CN107044326B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109767747A (en) * | 2019-01-14 | 2019-05-17 | 镇江华东电力设备制造厂有限公司 | A kind of multistage pressure control complex muffler |
| CN114109562A (en) * | 2021-12-31 | 2022-03-01 | 中科灵动航空科技成都有限公司 | A silencing device for unmanned aerial vehicle power generation system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203570402U (en) * | 2013-10-08 | 2014-04-30 | 潍柴动力股份有限公司 | Silencer for engineering machinery |
| CN203717094U (en) * | 2013-12-18 | 2014-07-16 | 浙江吉利控股集团有限公司 | Flexible connecting structure for silencer buffer pipe |
| CN106321193A (en) * | 2016-10-25 | 2017-01-11 | 力帆实业(集团)股份有限公司 | Rear silencer of sedan |
| CN205955799U (en) * | 2016-08-30 | 2017-02-15 | 重庆瑞鼎科技有限公司 | High -grade diesel oil, petrol unit silencer |
| CN206972342U (en) * | 2017-06-01 | 2018-02-06 | 连云港久盛电力辅机有限公司 | A kind of nuclear power generating sets muffler |
-
2017
- 2017-06-01 CN CN201710406165.2A patent/CN107044326B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203570402U (en) * | 2013-10-08 | 2014-04-30 | 潍柴动力股份有限公司 | Silencer for engineering machinery |
| CN203717094U (en) * | 2013-12-18 | 2014-07-16 | 浙江吉利控股集团有限公司 | Flexible connecting structure for silencer buffer pipe |
| CN205955799U (en) * | 2016-08-30 | 2017-02-15 | 重庆瑞鼎科技有限公司 | High -grade diesel oil, petrol unit silencer |
| CN106321193A (en) * | 2016-10-25 | 2017-01-11 | 力帆实业(集团)股份有限公司 | Rear silencer of sedan |
| CN206972342U (en) * | 2017-06-01 | 2018-02-06 | 连云港久盛电力辅机有限公司 | A kind of nuclear power generating sets muffler |
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| Publication number | Publication date |
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| CN107044326A (en) | 2017-08-15 |
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Denomination of invention: A type of nuclear power unit silencer Effective date of registration: 20231229 Granted publication date: 20230602 Pledgee: Bank of China Limited Lianyungang high tech Zone sub branch Pledgor: LIANYUNGANG JIU CHENG POWER AUXILIARY MACHINERY CO.,LTD. Registration number: Y2023980074494 |