CN201730873U - Structure of ship fan room - Google Patents
Structure of ship fan room Download PDFInfo
- Publication number
- CN201730873U CN201730873U CN2010202762897U CN201020276289U CN201730873U CN 201730873 U CN201730873 U CN 201730873U CN 2010202762897 U CN2010202762897 U CN 2010202762897U CN 201020276289 U CN201020276289 U CN 201020276289U CN 201730873 U CN201730873 U CN 201730873U
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- Prior art keywords
- sound
- fan house
- fan
- absorbing
- noise
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- Expired - Fee Related
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Abstract
The utility model discloses a structure of a ship fan room, which is characterized in that an air outlet of the fan room is provided with a plurality of sound absorbing walls which are arranged in parallel, have rugged surfaces and are made of sound absorbing prefabricate aluminium sheets. When noise generated by the fan passes through the sound absorbing walls, sound waves are flapped on the rugged sound absorbing prefabricate aluminium sheets and can be refracted repeatedly, and thus, the structure of the ship fan room greatly attenuates sound wave energy, greatly reduces noise at the air outlet of the fan room and has good effect of reducing noise.
Description
Technical field
The utility model relates to the structure that the fan house of engine-room fan is installed on the boats and ships.
Background technique
The boats and ships blower fan is the visual plant that gaseous exchange exchange is carried out in the ship machinery place, if there is not blower fan, machinery space can't obtain fresh air, and dynamic power machine can't proper functioning, and boats and ships are with at a standstill.Yet blower fan can produce very big noise and vibration when work, bring influence to surrounding environment.
Usually, the boats and ships blower fan is installed in the special-purpose cabin (fan house), and blower fan obtains new wind, combustion gas for convenience, realize the cabin atmosphere convection current, the fan house operated by rotary motion is at the top layer of ship, be positioned at build the living area near, fan noise on the influence of building very big, affect the comfortable feel that the passenger goes by ship greatly.In order to guarantee living area passenger's travelling comfort, satisfy environmental protection requirement, must carry out noise reduction process to blower fan.
Conventional noise-reduction method is that fan installs baffler additional.And the size of the noise reduction capability of baffler and size has relation, and the big more noise reduction of size is good more.Blower fan generally is installed in the fan house, the size of fan house is very limited, does not have enough stronger bafflers of space mounting noise reduction ability, often can only the less less relatively baffler of noise reduction capability of installation dimension, be difficult to obtain good noise reduction, be difficult to satisfy environmental requirement.
How to reduce the noise of boats and ships fan house, become puzzlement Ship Design person's a difficult problem, many for many years Ship Design workers are seeking to solve the method for this difficult problem always, but do not find the effective way of a cover all the time.
Summary of the invention
The utility model is intended to provide the better fan house structure of a kind of noise reduction.
The structure of boats and ships fan house described in the utility model comprises the fan house body, intake grill and exhaust outlet, and the exhaust outlet of fan house is equipped with sound-absorbing wall, and sound-absorbing wall comprises the prefabricated aluminium sheet of the sound-absorbing of the surface irregularity that polylith is arranged in parallel.
The structure of boats and ships fan house described in the utility model, be provided with the prefabricated aluminium sheet of sound-absorbing of the surface irregularity that polylith is arranged in parallel as sound-absorbing wall at the intake grill of blower fan and exhaust outlet, the sound wave of the noise that blower fan sends, during through sound-absorbing wall, sound wave is beaten and produce refraction on rough prefabricated surface of aluminum plate
,Acoustic wave energy can be decayed simultaneously, and the every refraction primary energy of sound wave is just decayed.Because the prefabricated aluminium metal plate surface irregularity of sound-absorbing wall, so sound wave can repeatedly be reflected during through prefabricated aluminium sheet, and energy is repeatedly decayed, thereby significantly reduces.Significantly stop the outside propagation of fan house noise, reduced the noise size of crossing sound-absorbing wall, reached the purpose of noise reduction, excellent noise reduction effect.It can take place and two aspects whiles of propagation of noise noise reduction from noise in conjunction with the equipment that reduces the noise of blower fan own (as the baffler that installs additional on the blower fan etc.), and noise reduction is more effective, and effect is more obvious.
Description of drawings
Fig. 1 is the schematic representation of boats and ships fan house structure described in the utility model;
Fig. 2 is the structural representation of the prefabricated aluminium metal plate of sound-absorbing in the sound-absorbing wall.
Embodiment
A kind of boats and ships fan house structure as Fig. 1, comprises fan house body 1, intake grill 2 and exhaust outlet 3, and the exhaust outlet 3 of fan house is equipped with sound-absorbing wall 4, and sound-absorbing wall 4 comprises the prefabricated aluminium sheet 5 of the sound-absorbing of the surface irregularity that polylith is arranged in parallel.
The noise that blower fan 6 sends, during through sound-absorbing wall, repeatedly refraction, degradation of energy can take place in sound wave on the prefabricated aluminium metal plate of rough sound-absorbing.In the process of noise transmission, consume the energy of noise, thereby will make an uproar.
When air flows through the prefabricated aluminium of sound-absorbing metal plate 5, form eddy current in the windward side of aluminium metal plate, produce new noise.Can fair water cone 7 be set in the windward side of the prefabricated aluminium metal plate of every sound-absorbing of sound-absorbing wall, as Fig. 2.The cross section of fair water cone becomes big by the windward side gradually to the prefabricated aluminium metal plate of sound-absorbing.
The intake grill of fan house can be provided with sound-absorbing wall equally.It can reduce the noise that air stream is gone into fan house.
The sound-insulating cover of being made by sound absorbing material can be covered in the top of fan house, and it can reduce the noise of propagating from the fan house top, further strengthens the effect of will making an uproar of fan house.
Claims (4)
1. the structure of a boats and ships fan house comprises the fan house body, and intake grill and exhaust outlet is characterized in that: the exhaust outlet of fan house is equipped with sound-absorbing wall, and sound-absorbing wall comprises the prefabricated aluminium sheet of the sound-absorbing of the surface irregularity that polylith is arranged in parallel.
2. the structure of boats and ships fan house according to claim 1 is characterized in that: the windward side of the prefabricated aluminium metal plate of the sound-absorbing of sound-absorbing wall is provided with fair water cone.
3. the structure of boats and ships fan house according to claim 1 is characterized in that: intake grill is provided with sound-absorbing wall equally.
4. the structure of boats and ships fan house according to claim 1 is characterized in that: the top of fan house is covered with the sound-insulating cover of being made by sound absorbing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202762897U CN201730873U (en) | 2010-07-30 | 2010-07-30 | Structure of ship fan room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202762897U CN201730873U (en) | 2010-07-30 | 2010-07-30 | Structure of ship fan room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201730873U true CN201730873U (en) | 2011-02-02 |
Family
ID=43522029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202762897U Expired - Fee Related CN201730873U (en) | 2010-07-30 | 2010-07-30 | Structure of ship fan room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201730873U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731066A (en) * | 2018-07-14 | 2018-11-02 | 佛山市云米电器科技有限公司 | A kind of kitchen ventilator that can reduce specific unifrequency noise |
| CN114475909A (en) * | 2022-02-22 | 2022-05-13 | 广船国际有限公司 | Barrier and boats and ships that noise reduction was used |
-
2010
- 2010-07-30 CN CN2010202762897U patent/CN201730873U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731066A (en) * | 2018-07-14 | 2018-11-02 | 佛山市云米电器科技有限公司 | A kind of kitchen ventilator that can reduce specific unifrequency noise |
| CN114475909A (en) * | 2022-02-22 | 2022-05-13 | 广船国际有限公司 | Barrier and boats and ships that noise reduction was used |
| CN114475909B (en) * | 2022-02-22 | 2023-09-22 | 广船国际有限公司 | Barrier and boats and ships that noise reduction was used |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510382 Guangzhou, Guangdong Province, south of Fangcun Avenue, No. 40 Patentee after: CSSC OFFSHORE & MARINE ENGINEERING (Group) Co.,Ltd. Address before: 510382 Guangzhou, Guangdong Province, south of Fangcun Avenue, No. 40 Patentee before: GUANGZHOU SHIPYARD INTERNATIONAL Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20160115 Address after: 511462 Nansha District, Guangzhou, Pearl River Management District, West Road, No., the first floor of the layer on the ground floor, No. 68 Patentee after: Guangzhou Shipyard International Co.,Ltd. Address before: 510382 Guangzhou, Guangdong Province, south of Fangcun Avenue, No. 40 Patentee before: CSSC OFFSHORE & MARINE ENGINEERING (Group) Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110202 Termination date: 20180730 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |