CN109367753A - A kind of ship loading cabin noise elimination wind conduit - Google Patents

A kind of ship loading cabin noise elimination wind conduit Download PDF

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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
Authority
CN
China
Prior art keywords
air
air duct
noise
skeleton
noise elimination
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.)
Pending
Application number
CN201810852741.0A
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Chinese (zh)
Inventor
戴辉阳
李爱华
薛小卫
罗立典
付登洲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hudong Zhonghua Shipbuilding Group Co Ltd
Original Assignee
Hudong Zhonghua Shipbuilding Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hudong Zhonghua Shipbuilding Group Co Ltd filed Critical Hudong Zhonghua Shipbuilding Group Co Ltd
Priority to CN201810852741.0A priority Critical patent/CN109367753A/en
Publication of CN109367753A publication Critical patent/CN109367753A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63JAUXILIARIES ON VESSELS
    • B63J2/00Arrangements of ventilation, heating, cooling, or air-conditioning
    • B63J2/02Ventilation; Air-conditioning
    • B63J2/10Ventilating-shafts; Air-scoops
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B17/00Vessels parts, details, or accessories, not otherwise provided for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00Load-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

A kind of ship loading cabin noise elimination wind conduit
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.
CN201810852741.0A 2018-07-30 2018-07-30 A kind of ship loading cabin noise elimination wind conduit Pending CN109367753A (en)

Priority Applications (1)

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CN201810852741.0A CN109367753A (en) 2018-07-30 2018-07-30 A kind of ship loading cabin noise elimination wind conduit

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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

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Cited By (3)

* Cited by examiner, † Cited by third party
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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JPH07217423A (en) * 1994-01-31 1995-08-15 Toshiba Corp Exhaust silencer
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CN108039167A (en) * 2018-01-16 2018-05-15 江苏华东正大空调设备有限公司 A kind of array type silencer and its processing method
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)

* Cited by examiner, † Cited by third party
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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