CN206584039U - A kind of sound insulation baffle for underwater obstruction article inspection device - Google Patents
A kind of sound insulation baffle for underwater obstruction article inspection device Download PDFInfo
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- CN206584039U CN206584039U CN201720012288.3U CN201720012288U CN206584039U CN 206584039 U CN206584039 U CN 206584039U CN 201720012288 U CN201720012288 U CN 201720012288U CN 206584039 U CN206584039 U CN 206584039U
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Abstract
The utility model is related to a kind of sound insulation baffle for underwater obstruction article inspection device, it is made up of supporting layer, packed layer, bubble film layer, stereotyped structure layer, packed layer and supporting layer, bubble film layer thickeies air layer thickness using multilayer chi structure, distinguish additional layer stainless steel supporting layer in bubble film layer top and bottom, add a strata sulfone stereotyped structure layer in the middle of multi-layer bubbles film, to prevent multi-layer bubbles film from deforming, and the filling polyurethane layer of the hypotonic water of floor height frequency is filled in bubble film layer using dosing technology, with this fixing internal bubble chamber film.The air entrapment film membrane material is high pressure polyethylene particle.According to propagation characteristic of the sound wave in multilayer dielectricity, two media characteristic impedance difference is bigger, and acoustical transimittivity is smaller, and sound insulation property is better, and dielectric thickness is bigger, and entrant sound loss is bigger.The sound insulation baffle effectively increases air layer thickness and width, and transmission loss is produced using the difference of the characteristic impedance of air and water, and sound insulation effect is played well.
Description
Technical field
The utility model belongs to Underwater Detection engineering device technique field, and in particular to one kind is used for underwater obstruction article inspection device
Sound insulation baffle.
Background technology
Because sound wave is more much farther away than electromagnetic wave in the distance of water transmission, so in the development of marine cause, underwater sound skill
Art is more more extensive than the application of radio, radar etc..Sound wave that people are sent using target itself extensively or after being reflected through target
Echo realize the detection of submarine target, sonar is exactly the Primary Component needed for during this.Sound wave can be produced under water
Object (including surface ship, submarine, fish, submarine mine, ledge, the shoal of fish etc.) it can be used as sonar detection target.Thus, make
For the equipment of target acquisition, identification and positioning, no matter in military or national economy, sonar suffers from quite widely should
With.
Underwater target tracking, positioning and detection, underwater communication, underwater navigation, the fire control of Underwater Battery, target identification
Deng being nearly all militarily applied first.Sonar also has a wide range of applications in civil area, with the hair of marine cause
Exhibition, the use scope of sonar also expands day by day.In addition to sounding, navigation, Marine Geology investigation, the locating fish, ocean are propagated
Landforms mapping, dynamic positioning of vessels etc. are all increasingly dependent on sonar.Ship is with long history and very important waterborne
Transport facility, all plays critically important effect in economic growth and social progress.And maximization with ship, high speed
Change development, often hit a submerged reef under foggy weather, stranded and the accident such as collide, the life and property loss caused can not estimate
Amount, especially for LNG carrier, oil carrier, nuclear-powered ship, liquified gas carries and chemical tanker, once occur accident,
Serious threat will be caused to the marine eco-environment, security of the lives and property etc..Water transportation efficiency and traffic safety problem become
It is increasingly serious.Underwater obstacle detection sonar system based on MEMS vector hydrophone, cost is low, small volume and not by haze sky
The features such as influence of gas, but green end device is detected for active sonar, the direct-wave jamming of T-R transducer, which is directly affected, is
The detection accuracy and false-alarm probability of system.
It is used as being acoustically separated between transducer array each unit, gear etc. after the anti-sound of transducer array more sound insulation baffle under water, leads to
Cross sound wave reflection and absorb two kinds of Function effects, as long as that is, sound wave is by the way that insertion loss is made an appointment more greatly.Therefore,
Typically the characteristic impedance mismatch of sound insulating material and adjacent both sides medium is required, and require that its attenuation ratio is larger.For impedance
The sound insulating material under water of mismatch can use low-resistance acoustic resistive soft material or the higher sound hard material of impedance.At present, sound insulation hinders under water
There is certain defening effect as the composite construction of core outsourcing hard material using soft material more than plate.But will for sound insulation property
Higher application scenario is asked, is such as used for the sound insulation baffle of underwater obstacle detection system T-R device, it is desirable to effectively shielding transmitting
Interference of the direct wave to receiving terminal is held, such sound insulation baffle is not well positioned to meet requirement.
The content of the invention
The purpose of this utility model be solve to be currently used for the sound insulation baffle defening effect of underwater obstruction article inspection device compared with
It is weak, it is impossible to which that effectively the technical problem of shielding sound wave interference can effectively shield transmitting terminal direct sound wave there is provided one kind from structure and do
The sound insulation baffle for underwater obstruction article inspection device disturbed.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of sound insulation baffle for underwater obstruction article inspection device, the sound insulation for underwater obstruction article inspection device
Baffle is made up of supporting layer, packed layer, bubble film layer, packed layer and supporting layer successively from top to bottom.
The sound insulation baffle for underwater obstruction article inspection device also includes stereotyped structure layer, and the stereotyped structure layer is set
In the centre of bubble film layer, to prevent bubble film layer from deforming.
The supporting layer is stainless steel plate, and its thickness is 2mm.
The packed layer is layer of polyurethane, to fixed bubble film layer.
The bubble film layer is formed by High-Pressure Polyethylene Film bubble cross stacking, a diameter of 3mm of the bubble.
The stereotyped structure layer is polysulfones setting layer, and its thickness is 1mm.
The utility model use above technical scheme, the sound insulation baffle by cladding bubble chamber film supporting layer, packed layer, gas
Vacuolar membrane layer, stereotyped structure layer, packed layer and supporting layer composition, bubble film layer thicken air layer thickness using multilayer chi structure,
Bubble film layer top and bottom are distinguished in the middle of additional layer stainless steel supporting layer, multi-layer bubbles film plus a strata sulfone stereotyped structure layer, with
Prevent multi-layer bubbles film from deforming, and utilize dosing technology in the filling polyurethane of the hypotonic water of bubble film layer filling one floor height frequency
Layer, with this fixing internal bubble chamber film.The air entrapment film membrane material is high pressure polyethylene particle.Utilize ideal air
Layer sound insulating material, effectively increases transmission loss, improves sound insulation property.In use, in receiving hydrophone and hair in active sonar
Penetrate between transducer and easily produce the place of direct projection, separated with sound insulation baffle, then Acoustic Wave Propagation approach is：Launch sound wave-sea
Water-stainless steel-polyurethane-high-pressure polyethylene film-air-high-pressure polyethylene film-polyurethane-stainless steel-sea
Water-hydrophone, according to propagation characteristic of the sound wave in multilayer dielectricity, two media characteristic impedance difference is bigger, and acoustical transimittivity is got over
Small, sound insulation property is better, while air layer thickness is bigger, acoustical transimittivity is smaller, and the transmission loss of generation is bigger, and sound insulation property is got over
It is good.Because the impedance of polyurethane and water is fairly close, and frequency is relatively low, ignores the acoustic loss of filling polyurethane layer, while ignoring height
The acoustic loss of pressure polyethylene stratum granulosum and stainless steel supporting layer, route of transmission is reduced to：Launch sound wave-seawater-air-sea
Water.When sound wave passes through air bag from water, it may occur that reflection and transmit, due to air and the characteristic impedance severe mismatch of water, thoroughly
Coefficient very little is penetrated, most of acoustic energy is absorbed by bubble chamber film, a part is reflected, only few part acoustic energy passes through sound insulation baffle,
Sound insulation effect is played well, effectively shields the direct sound wave interference of transmitting terminal.Simultaneously using the stainless steel of seawater corrosion resistance
Material coats bubble chamber film, can high water pressure resistant, it is adaptable to marine environment.
Brief description of the drawings
Fig. 1 is the sectional view of the first embodiment of the utility model；
Fig. 2 is the sectional view of second of embodiment of the utility model；
Fig. 3 is three layers of medium theory of sound propagation model；
Fig. 4 is relation of the ratio between the medium II and medium I characteristic impedance with acoustical transimittivity；
Wherein, in Fig. 1,1- supporting layers, 2- packed layers, 3- bubble film layers；
In Fig. 2,1- supporting layers, 2- packed layers, 3- bubbles film layer, 4- stereotyped structures layer.
Embodiment
Embodiment 1
As shown in figure 1, a kind of sound insulation baffle for underwater obstruction article inspection device in the present embodiment, described to be used for water
The sound insulation baffle of lower barrier detecting apparatus is from top to bottom successively by supporting layer 1, packed layer 2, bubble film layer 3, packed layer 2 and branch
Support layer 1 is constituted.
The supporting layer 1 is stainless steel plate, and its thickness is 2mm.
The packed layer 2 is layer of polyurethane, to fixed bubble film layer.
The bubble film layer 3 is formed by High-Pressure Polyethylene Film bubble cross stacking, a diameter of 3mm of the bubble.
The stereotyped structure layer 4 is polysulfones setting layer, and its thickness is 1mm.
Embodiment 2
As shown in Fig. 2 a kind of sound insulation baffle for underwater obstruction article inspection device in the present embodiment, described to be used for water
The sound insulation baffle of lower barrier detecting apparatus is from top to bottom successively by supporting layer 1, packed layer 2, bubble film layer 3, packed layer 2 and branch
Support layer 1 is constituted.
The sound insulation baffle for underwater obstruction article inspection device also includes stereotyped structure layer 4, the stereotyped structure layer 4
The centre of bubble film layer 3 is located at, to prevent bubble film layer from deforming.
The supporting layer 1 is stainless steel plate, and its thickness is 2mm.
The packed layer 2 is layer of polyurethane, to fixed bubble film layer.
The bubble film layer 3 is formed by High-Pressure Polyethylene Film bubble cross stacking, a diameter of 3mm of the bubble.
The stereotyped structure layer 4 is polysulfones setting layer, and its thickness is 1mm.
In use, Acoustic Wave Propagation approach is to be reduced in active sonar：Launch sound wave-seawater-air-seawater.
Three layers of MEDIUM THEORY model according to Fig. 3, obtaining acoustical transimittivity of the sound wave again to aqueous medium from aqueous medium to air dielectric is：
Wherein, Z1For the characteristic impedance of water, Z2For the characteristic impedance of air, k2The wave number propagated in atmosphere for sound wave, L
For the average thickness of bubble chamber film.
Relation curve such as the ratio between characteristic impedance that Fig. 4 is medium II and medium I with acoustical transimittivity, can be with from analysis result
Find out if medium I and medium II characteristic impedance Z1≈Z2, then acoustical transimittivity T ≈ 1.That is medium II and medium I characteristic impedance
Difference is bigger, and acoustical transimittivity is smaller, and the transmission loss of generation is bigger, and sound insulation property is better, belongs in table 1 for the material of different materials
Property, therefore the air with water characteristic impedance mismatch most serious is chosen, take bubble chamber film；Air layer thickness is bigger simultaneously, entrant sound system
Number is smaller, and the transmission loss of generation is bigger, and sound insulation property is better.
The material properties of table 1
By said structure, a kind of acoustic baffle for sonar array of the present utility model has the following advantages that：Sound
Ripple passes through air bag from water, and transmission coefficient very little, transmission loss is big, sound insulation effect can be played well, while using high frequency
Hypotonic water, the polyurethane material embedding cladding bubble chamber film of sea water resistance immersion, can high water pressure resistant.
It is readily apparent that the description and record of the above are only to illustrate rather than in order to limit disclosed in the utility model
Content, using or use.Although being described in embodiment and describing embodiment, the utility model with reference to the accompanying drawings
Do not limit by accompanying drawing example and described in embodiment as it is now recognized that optimal mode to implement religion of the present utility model
The specific examples led, scope of the present utility model is by any implementation including falling into description and appended claims above
Example.
Claims (6)
1. a kind of sound insulation baffle for underwater obstruction article inspection device, it is characterised in that：It is described to be used for underwater obstacle detection
The sound insulation baffle of device is from top to bottom successively by supporting layer (1), packed layer (2), bubble film layer (3), packed layer (2) and supporting layer
(1) constitute.
2. a kind of sound insulation baffle for underwater obstruction article inspection device according to claim 1, it is characterised in that：It is described
Sound insulation baffle for underwater obstruction article inspection device also includes stereotyped structure layer (4), and the stereotyped structure layer (4) is located at bubble
The centre of film layer (3), to prevent bubble film layer from deforming.
3. a kind of sound insulation baffle for underwater obstruction article inspection device according to claim 1 or 2, it is characterised in that：
The supporting layer (1) is stainless steel plate, and its thickness is 2mm.
4. a kind of sound insulation baffle for underwater obstruction article inspection device according to claim 1 or 2, it is characterised in that：
The packed layer (2) is layer of polyurethane, to fixed bubble film layer.
5. a kind of sound insulation baffle for underwater obstruction article inspection device according to claim 1 or 2, it is characterised in that：
The bubble film layer (3) is formed by High-Pressure Polyethylene Film bubble cross stacking, a diameter of 3mm of the bubble.
6. a kind of sound insulation baffle for underwater obstruction article inspection device according to any one of claim 2, its feature exists
In：The stereotyped structure layer (4) is polysulfones setting layer, and its thickness is 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720012288.3U CN206584039U (en) | 2017-01-04 | 2017-01-04 | A kind of sound insulation baffle for underwater obstruction article inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720012288.3U CN206584039U (en) | 2017-01-04 | 2017-01-04 | A kind of sound insulation baffle for underwater obstruction article inspection device |
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| CN206584039U true CN206584039U (en) | 2017-10-24 |
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| CN201720012288.3U Expired - Fee Related CN206584039U (en) | 2017-01-04 | 2017-01-04 | A kind of sound insulation baffle for underwater obstruction article inspection device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109226276A (en) * | 2018-11-13 | 2019-01-18 | 中国重型机械研究院股份公司 | A kind of roll squeezer control method |
| CN109332131A (en) * | 2018-11-09 | 2019-02-15 | 美钻深海能源科技研发（上海）有限公司 | A kind of technique for the anti-marine organism corrsion of underwater metal surface |
| CN110689872A (en) * | 2019-09-24 | 2020-01-14 | 哈尔滨工程大学 | Method for reducing noise of working environment of underwater detection equipment |
-
2017
- 2017-01-04 CN CN201720012288.3U patent/CN206584039U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332131A (en) * | 2018-11-09 | 2019-02-15 | 美钻深海能源科技研发（上海）有限公司 | A kind of technique for the anti-marine organism corrsion of underwater metal surface |
| CN109332131B (en) * | 2018-11-09 | 2022-01-04 | 美钻深海能源科技研发（上海）有限公司 | Process for preventing marine organism corrosion on underwater metal surface layer |
| CN109226276A (en) * | 2018-11-13 | 2019-01-18 | 中国重型机械研究院股份公司 | A kind of roll squeezer control method |
| CN110689872A (en) * | 2019-09-24 | 2020-01-14 | 哈尔滨工程大学 | Method for reducing noise of working environment of underwater detection equipment |
| CN110689872B (en) * | 2019-09-24 | 2022-01-28 | 哈尔滨工程大学 | Method for reducing noise of working environment of underwater detection equipment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171024 Termination date: 20210104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |