CN109367753A - A kind of ship loading cabin noise elimination wind conduit - Google Patents
A kind of ship loading cabin noise elimination wind conduit Download PDFInfo
- Publication number
- CN109367753A CN109367753A CN201810852741.0A CN201810852741A CN109367753A CN 109367753 A CN109367753 A CN 109367753A CN 201810852741 A CN201810852741 A CN 201810852741A CN 109367753 A CN109367753 A CN 109367753A
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- China
- Prior art keywords
- air
- air duct
- noise
- skeleton
- noise elimination
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J2/00—Arrangements of ventilation, heating, cooling, or air-conditioning
- B63J2/02—Ventilation; Air-conditioning
- B63J2/10—Ventilating-shafts; Air-scoops
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Duct Arrangements (AREA)
Abstract
The invention discloses a kind of ship loading cabin noise elimination wind conduits, including air duct ontology, air duct ontology includes air intake passage and air-out passage, the turning junction of air intake passage and air-out passage is provided with multiple parallel towards the inclined noise reduction deflector of direction windward, forms the flow-guiding channel to change air flow path between two neighboring noise reduction deflector.Air duct in 90 ° is arranged in noise elimination wind conduit by the present invention, in the fixed noise reduction deflector in its 90 ° of turnings, can not only be changed air flow path, be shunted to gas, can also absorb generated aerodynamic noise in air flow process；And one layer of damping paint is set on the inner wall of air duct ontology, it can be avoided air-flow and generate resonance in air duct body when flowing through air duct, cause trembling for wind path wall, the noise in air duct can be further decreased, noise can be effectively eliminated and reach 10dB (A) or more.
Description
Technical field
The present invention relates to ship ventilation technical fields, use on ship large size load compartment more particularly to one kind, connection
In the ship loading cabin noise elimination wind conduit of load compartment fan outlet.
Background technique
In ship large size load compartment (including cargo hold, vehicle hold etc.) Design of Ventilation System, due to overall cabin factor of location,
The ventilation blower and air duct arrangement for serving load compartment place are difficult to provide adequate space, often occur at the air outlet of its blower
The air duct for thering is 90o to turn.And general load compartment ventilation universal super large (the up to 100000m of fan delivery3/ h), when separate unit blower operates
The noise of air of generation is also very high (there are about 105dB(A)), when the noise that more Fans operate generation simultaneously is passed by tunnel inlet
When air inlet duct, the aerodynamic noise that air duct interior air-flow generates is very big, and since fan outlet wind speed is higher, air outlet size
Much smaller compared with air duct, the noise at air outlet can be maximum, and then influences cabin noise and be not able to satisfy code requirement.Therefore, it needs
Effective noise control is made to the air duct being connected with load compartment fan outlet.
The noise control of traditional large size load compartment fan outlet, the air outlet setting pipeline for being typically employed in ventilation blower disappear
Sound device or setting ventilation deflector, to reduce the pneumatic noise in air duct.And pipeline silencer shape is big, space occupancy rate is high,
Installation is inconvenient；Ventilation deflector can reduce duct resistance, but noise reduction effect is limited.
Summary of the invention
The purpose of the present invention is overcome the deficiencies in the prior art, design a kind of ship loading cabin noise elimination wind conduit, solve
The too big problem of existing air duct pneumatic noise.
In order to achieve the above objectives, the technical scheme adopted by the invention is that:
A kind of ship loading cabin noise elimination wind conduit, including air duct ontology, air duct ontology include air intake passage and air-out passage, and air inlet is logical
The turning junction of road and air-out passage be provided with it is multiple parallel towards the inclined noise reduction deflector of direction windward, adjacent two
Form the flow-guiding channel to change air flow path between a noise reduction deflector, the noise reduction deflector includes that shell, setting exist
Multiple criss-cross skeletons of enclosure interior, the intermediate fagging and sound-absorbing material of setting inside housings, laterally setting with
The upper and lower end face of the equally spaced arrangement of longitudinally disposed skeleton, each skeleton is each attached in inner walls, the intermediate fagging
It is passed perpendicularly through in the middle part of all skeletons to collectively form the sound absorption chamber to filling sucting sound material with skeleton and shell, in
Between fagging end from shell stretch out and be fixed on the ontology of air duct by fastener.
Preferably, being provided with one layer of 12mm- on the air intake passage of the air duct ontology and the inner wall of air-out passage
The damping paint of 16mm thickness.
Preferably, the air intake passage and the perpendicular setting of air-out passage, constitute 90 ° of noise elimination wind conduits, noise reduction
Deflector is fixed on 90 ° of turnings in air duct by the intermediate fagging being fixed in the inner body wall of air duct.
Preferably, 2-4 piece noise reduction deflector is provided in the air duct ontology, each noise reduction deflector and air inlet air-flow
The angle of horizontal direction is 25 ° -45 °.
Preferably, the shell of the noise reduction deflector is to close shell made of the perforated plate of 0.5mm-1.0mm thickness
Body, the bottom end of shell windward side are equipped with arc angling, and the percent opening of windward side perforated plate is greater than the percent opening of leeward perforated plate.
Preferably, enabling longitudinally disposed skeleton is longitudinal framework, the skeleton being laterally arranged is horizontal skeleton, each vertical
It is made of to skeleton two symmetrically placed zigzag gussets together, each horizontal skeleton is symmetrically disposed at one by two
The U-shaped gusset risen is constituted.
Preferably, two U-shaped gussets in two zigzag gussets, horizontal skeleton in the longitudinal framework are equal
Along its respectively skeleton transverse axis be symmetrical arranged.
Preferably, being enclosed with one layer of cover on the outside of the sound-absorbing material.
Preferably, the cover is using glass wool cloth.
Preferably, the sound-absorbing material is using super glass wool.
Positive beneficial effect of the invention:
1, the configuration of the present invention is simple, easy to install and use, is arranged air duct in 90 ° for noise elimination wind conduit, to the space in load compartment place
Utilization rate is high, and 90 ° of turnings in air duct are fixed with noise reduction deflector, can not only change air flow path, shunt to gas,
Also generated aerodynamic noise in air flow process can be absorbed, the aerodynamic noise in air duct is effectively reduced；And in air duct sheet
One layer of damping paint is set on the inner wall of body, can be avoided air-flow and generate resonance in air duct body when flowing through air duct, cause air duct
Wall trembles, and can further decrease the noise in air duct, can effectively eliminate noise and reach 10dB (A) or more.
2, the percent opening of the windward side of noise reduction deflector shell is greater than the percent opening of leeward, and its bottom is set as arc
Chamfering, and tilted and be fixed in air duct, it can effectively reduce the turbulent flow that air-flow is formed on noise reduction deflector, reduce resistance damage
It loses, noise reduction effect has been effectively ensured.
Detailed description of the invention
In order to become apparent to illustrate the embodiment of the present invention or technical solution in the prior art, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the A direction view of Fig. 1.
Fig. 3 is the B-B direction cross-sectional view of Fig. 2.
Fig. 4 is the C-C of Fig. 2 to cross-sectional view.
Fig. 5 is the enlarged drawing of the fixation position in noise reduction deflector and air duct.
Fig. 6 is the stationary state enlarged drawing of longitudinal framework.
Fig. 7 is the side view of noise reduction deflector.
The concrete meaning of figure label are as follows: 1 is shell, and 2 be skeleton, and 3 be intermediate fagging, and 4 be sound-absorbing material, and 5 be sound absorption
Chamber, 6 be arc angling, and 7 be longitudinal framework, and 8 be horizontal skeleton, and 9 be air intake passage, and 10 be air-out passage, and 11 lead for noise reduction
Flowing plate, 12 be flow-guiding channel, and 13 be stay bolt part, and 14 be damping paint, and 15 be rivet, and 16 be stud.
Specific embodiment
In order to make the objectives, technical solutions and advantages of the present invention clearer, below by shown in the accompanying drawings specific
Embodiment describes the present invention.However, it should be understood that these descriptions are merely illustrative, and it is not intended to limit model of the invention
It encloses.In addition, in the following description, descriptions of well-known structures and technologies are omitted, it is of the invention to avoid unnecessarily obscuring
Concept.
It is only to be not intended to be limiting the disclosure merely for for the purpose of describing particular embodiments in the term that the disclosure uses.
The "an" of the singular used in disclosure and the accompanying claims book, " described " and "the" are also intended to including majority
Form, unless the context clearly indicates other meaning.It is also understood that term "and/or" used herein refers to and wraps
It may be combined containing one or more associated any or all of project listed.
In the description of the present invention, unless otherwise specified and limited, it should be noted that term " installation ", " connected ",
" connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, the connection being also possible to inside two elements can
, can also indirectly connected through an intermediary, for the ordinary skill in the art to be to be connected directly, it can basis
Concrete condition understands the concrete meaning of above-mentioned term.
Illustrate present embodiment in conjunction with Fig. 1-Fig. 7, ship loading cabin noise elimination wind conduit of the invention is mounted on large-scale load compartment
On the air outlet of blower, it can effectively reduce the pneumatic noise in air duct, control effectively to noise.
Ship loading cabin noise elimination wind conduit includes air duct ontology, and air duct ontology is irregular along the cross section of airflow direction
Quadrangle, can according to actual use situation, set air duct ontology transverse shape.Air duct ontology includes 9 He of air intake passage
Air-out passage 10, air intake passage 9 and the perpendicular setting of air-out passage 10 constitute 90 ° of noise elimination wind conduits.
By being analyzed with velocity field air channel structure pressure field, at the turning in air duct, there are biggish pressure for discovery
Pulsation, while the wind speed of the position changes greatly, and in order to reduce duct pressure pulsation and reduce wind speed, in air intake passage 9 and goes out
The turning junction in wind channel 10 be arranged it is multiple it is parallel towards the inclined noise reduction deflector 11(of direction windward i.e. in air duct
Multiple noise reduction deflectors 11 are arranged in 90 ° of turnings), it is formed to change air flow path between two neighboring noise reduction deflector 11
Flow-guiding channel 12.After gas is passed through from air intake passage 9, noise reduction deflector 11 shunts gas, the gas after shunting from
Corresponding flow-guiding channel flows into air-out passage 10.When gas flows through noise reduction deflector 11, noise reduction deflector 11 is while water conservancy diversion
Also generated aerodynamic noise in air flow process can be absorbed.
The setting quantity of the noise reduction deflector 11 is related along the cross-sectional width of airflow direction with air duct, and air duct is along air-flow side
To cross-sectional width it is wider, the noise reduction baffle quantity of setting is more.In the present embodiment, 90 ° of turnings in air duct are provided with
2-4 piece noise reduction deflector 11, the vertical range between two neighboring noise reduction deflector are 800-900mm, noise reduction deflector 11 with
The angle theta for entering the wind flow level direction is 25 ° -45 °, and preferably angle is 25-30 °.
The noise reduction deflector 11 includes shell 1, intermediate fagging 3, skeleton 2 and sound-absorbing material 4, intermediate fagging 3, skeleton 2
It is arranged in shell 1 with sound-absorbing material 4.Shell 1, intermediate fagging 3, skeleton 2 are all made of metal plate and are made, preferably not
Become rusty steel plate.
The shell 1 is to close shell made of the perforated plate of 0.5mm-1.0mm thickness.It is led to reduce air-flow in noise reduction
The turbulent flow formed in flowing plate reduces drag losses, is equipped with arc angling in the bottom end of 1 windward side of shell, can make in flow field in this way
There is no the biggish regions of change value of pressure, will not have biggish speed separation and the biggish region of Turbulent Kinetic, have
Conducive to reduction gas-flow resistance.Since the sound absorption effect of perforated plate is related with its open pore size and percent opening size setting, be
The sound absorption effect for guaranteeing noise reduction deflector should make the percent opening of windward side perforated plate be greater than the percent opening of leeward perforated plate,
In the present embodiment the percent opening of windward side perforated plate be 50%, aperture 0.5mm, the percent opening of leeward perforated plate is 30%,
Aperture is 1mm；Meanwhile in order to ensure the noise reduction effect of air intake passage, the length of noise elimination deflector 11 should be not less than 1.8m.
The skeleton 2 of the enclosure interior is provided with several.Multiple skeletons 2 are immobilized in the shell portion, skeleton 2 in a crisscross manner
For enhancing the structural strength of shell.Enabling the skeleton being laterally arranged is horizontal skeleton 8, and longitudinally disposed skeleton is longitudinal framework 7,
Horizontal skeleton 8 and the equally spaced arrangement of longitudinal framework 7.Each horizontal skeleton 8 is by two symmetrically placed U-shaped muscle together
Plate is constituted, and skeleton 7 is made of two symmetrically placed zigzag gussets together longitudinally in each, and intermediate fagging 3 is clipped in above and below
Between two layers of gusset.In this implementation, two U-shaped gussets in horizontal skeleton 8 are symmetrical arranged along its transverse axis, i.e. two U
Font gusset is individually positioned in the upper and lower end face of intermediate fagging 3, and upper and lower two gussets are solid by stud and intermediate fagging 3
Fixed integral, the top of upper layer U-shaped gusset, the bottom of lower layer's U-shaped gusset pass through rivet 15 and are fixed on shell 1.Together
Sample, two zigzag gussets in longitudinal framework 7 are symmetrical arranged along its transverse axis, i.e., two gussets are symmetrically disposed at centre
On the upper and lower end face of fagging 3, it is integrally fixed between two gussets by stud 16 and intermediate fagging 3, upper layer zigzag
The top of gusset, the bottom of lower layer's zigzag gusset are fixed on shell 1 by rivet 15.
The intermediate fagging 3 be a rectangular slab, intermediate fagging 3 passed perpendicularly through in the middle part of all skeletons to skeleton and
Shell collectively forms the sound absorption chamber 5 to filling sucting sound material.The both ends of the intermediate fagging 3 are stretched out from shell, are stretched
Several kidney slots are offered in the plate face of part out.Stay bolt part 13 is fixed on the inner wall of air duct ontology, by using double end
The part that intermediate fagging 3 is stretched out from shell can be connected and fixed by bolt with stay bolt part 13.In this way, entire noise reduction deflector 11 is just
It can be fixed in channel by its internal intermediate fagging 3.
The sound-absorbing material 4 is using super glass wool, bulk density 75Kg/m3, air when flowing through noise reduction deflector,
Super glass wool can further absorb generated aerodynamic noise in air flow process.In order to avoid air flows through superfine glass
When cotton, the sundries such as cotton-wool are entered into air duct, influence the air quality of load compartment environment, one can be wrapped up in the outside of super glass wool
Layer cover, cover preferentially select glass wool cloth, then the super glass wool for being enclosed with cover are fixed on to the sound absorption chamber 5 of shell
Interior, the sundries such as such cotton-wool will not enter the inside of air intake passage with air-flow, while can also absorb gas to avoid super glass wool
Moisture in stream.
Wind path wall generation is trembled when flowing through air duct ontology in order to avoid air-flow, further increases the noise reduction effect of noise elimination wind conduit
The damping paint 14 of one layer of 12mm-16mm thickness can be arranged in fruit on the inner wall of air duct ontology, preferably selection T60 type damping paint,
The damping paint is made of damping layer and restraint layer, and damping layer material preferably uses solvent-free double-component polyurethane coating, and painting is scraped
With a thickness of 1.7 ~ 2.0 times of steel plate thickness, constrained layer material is preferably solvent-free double-component epoxy cold coating, in this way from loading
The air-flow sent out in the blower of cabin will not generate resonance with air duct body, not will cause trembling for wind path wall when flowing through air duct, thus
Noise is eliminated, the erasure effect of noise elimination wind conduit is further increased.
Therefore, after the air that load compartment blower is sent out enters air duct inside from air intake passage, air-flow is in noise reduction deflector
Air is divided into multiple flow paths under guidance to flow to the direction of air-out passage.When air-flow flows through the noise elimination wind conduit, noise reduction deflector,
It damps dressing and sound-deadening and noise-reducing is carried out to air-flow jointly, noise can be effectively eliminated and reach 10dB (A) or more.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that；Still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (10)
1. a kind of ship loading cabin noise elimination wind conduit, which is characterized in that including air duct ontology, air duct ontology includes air intake passage (9)
With air-out passage (10), the turning junction of air intake passage (9) and air-out passage (10) is provided with multiple parallel directions and meets
The inclined noise reduction deflector (11) in wind direction is formed between two neighboring noise reduction deflector logical to the water conservancy diversion that changes air flow path
Road (12), the noise reduction deflector include that shell (1), setting multiple criss-cross skeletons (2) inside housings, setting exist
The intermediate fagging (3) and sound-absorbing material (4) of enclosure interior, lateral setting and the longitudinally disposed equally spaced arrangement of skeleton, often
The upper and lower end face of a skeleton (2) is each attached on shell (1) inner wall, and the middle part of intermediate fagging (3) from all skeletons is vertical
Across to collectively form the sound absorption chamber (5) to filling sucting sound material with skeleton, shell, the end of intermediate fagging (3) from
It stretches out in shell (1) and is fixed on the inner wall of air duct ontology by stay bolt part (13).
2. ship loading cabin according to claim 1 noise elimination wind conduit, which is characterized in that the air intake passage of the air duct ontology
(9) and on the inner wall of air-out passage (10) it is provided with the damping paint (14) of one layer of 12mm-16mm thickness.
3. ship loading cabin according to claim 2 noise elimination wind conduit, which is characterized in that the air intake passage (9) and outlet air
Channel (10) perpendicular setting constitutes 90 ° of noise elimination wind conduits, and noise reduction deflector (11) is by being fixed in the inner body wall of air duct
Stay bolt part (13) be fixed on 90 ° of turnings in air duct.
4. ship loading cabin according to claim 1 noise elimination wind conduit, which is characterized in that be provided with 2- in the air duct ontology
The angle in 4 noise reduction deflectors (11), each noise reduction deflector and air inlet flow level direction is 25 ° -45 °.
5. ship loading cabin according to claim 4 noise elimination wind conduit, which is characterized in that the shell of the noise reduction deflector
(1) to close shell made of the perforated plate of 0.5mm-1.0mm thickness, the bottom end of shell windward side is equipped with arc angling (6), meets
The percent opening of wind face perforated plate is greater than the percent opening of leeward perforated plate.
6. ship loading cabin according to claim 1 noise elimination wind conduit, which is characterized in that it is longitudinal for enabling longitudinally disposed skeleton
Skeleton (7), the skeleton being laterally arranged are horizontal skeleton (8),
Skeleton (7) is made of two symmetrically placed zigzag gussets together longitudinally in each,
Each horizontal skeleton (8) is made of two symmetrically placed U-shaped gussets together.
7. ship loading cabin according to claim 6 noise elimination wind conduit, which is characterized in that two in the longitudinal framework (7)
The transverse axis of two U-shaped gussets in a zigzag gusset, horizontal skeleton (8) along its respective skeleton is symmetrical arranged.
8. ship loading cabin according to claim 1 noise elimination wind conduit, which is characterized in that the outside of the sound-absorbing material (4)
It is enclosed with one layer of cover.
9. ship loading cabin according to claim 8 noise elimination wind conduit, which is characterized in that the cover is using glass fiber
Cloth.
10. ship loading cabin according to claim 8 noise elimination wind conduit, which is characterized in that the sound-absorbing material (4) used
It is super glass wool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810852741.0A CN109367753A (en) | 2018-07-30 | 2018-07-30 | A kind of ship loading cabin noise elimination wind conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810852741.0A CN109367753A (en) | 2018-07-30 | 2018-07-30 | A kind of ship loading cabin noise elimination wind conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109367753A true CN109367753A (en) | 2019-02-22 |
Family
ID=65403679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810852741.0A Pending CN109367753A (en) | 2018-07-30 | 2018-07-30 | A kind of ship loading cabin noise elimination wind conduit |
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| Country | Link |
|---|---|
| CN (1) | CN109367753A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113473797A (en) * | 2021-05-31 | 2021-10-01 | 山东英信计算机技术有限公司 | Server cabinet and multi-path server thereof |
| CN113501124A (en) * | 2021-07-21 | 2021-10-15 | 上海外高桥造船有限公司 | Ship structural air pipe with silencer and installation method thereof, and ship |
| CN114735203A (en) * | 2022-06-13 | 2022-07-12 | 中国空气动力研究与发展中心高速空气动力研究所 | Noise suppression device for triangular prism-shaped aircraft weapons cabin |
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| CN209479945U (en) * | 2018-07-30 | 2019-10-11 | 沪东中华造船(集团)有限公司 | A kind of ship loading cabin noise elimination wind conduit |
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| JPH07217423A (en) * | 1994-01-31 | 1995-08-15 | Toshiba Corp | Exhaust silencer |
| DE102006050869A1 (en) * | 2006-10-27 | 2008-04-30 | Airbus Deutschland Gmbh | Sound proofing device for air pipe line of airplane, has air conduction means that is arranged within curved pipe section that is equipped with micro perforation at side surface for further weight neutral sound proofing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113473797A (en) * | 2021-05-31 | 2021-10-01 | 山东英信计算机技术有限公司 | Server cabinet and multi-path server thereof |
| CN113501124A (en) * | 2021-07-21 | 2021-10-15 | 上海外高桥造船有限公司 | Ship structural air pipe with silencer and installation method thereof, and ship |
| CN114735203A (en) * | 2022-06-13 | 2022-07-12 | 中国空气动力研究与发展中心高速空气动力研究所 | Noise suppression device for triangular prism-shaped aircraft weapons cabin |
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