CN1888832A - Pipeline fluid noise auxiliary measuring device - Google Patents
Pipeline fluid noise auxiliary measuring device Download PDFInfo
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- CN1888832A CN1888832A CN 200610019620 CN200610019620A CN1888832A CN 1888832 A CN1888832 A CN 1888832A CN 200610019620 CN200610019620 CN 200610019620 CN 200610019620 A CN200610019620 A CN 200610019620A CN 1888832 A CN1888832 A CN 1888832A
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- water tank
- slotted eye
- sound
- conduction water
- pipe
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Abstract
The pipeline liquid yawp assistant measuring equipment relates to barrel sound transmission water tank. There is joining slot on its bottom, and the joining slot tallies with pipe under test and sealed connects with outside pipe wall. Hydrophone suspends in the sound transmission water tank. It can eliminate infection to measure water yawp by the pipe liquid pressure flutter and directly measure the sound signal in pipe to solve the problem to pick up water signal in the mixing liquid coming from pipe pressure flutter and water yawp signal. It is important to research the yawp of the inner liquid and rule for changing and diffusing, and the dropped yawp and concealed body of the boat. It is fit for testing pipe liquid yawp to existing and built pipe. The sound absorption layer inside the sound transmission water tank reduces the reflect effect of sound wave and keep the linearity and veracity to the measuring data.
Description
Technical field
The invention belongs to the device relevant, be specifically related to a kind of pipeline fluid noise auxiliary measuring device with the acoustic measurement technology.
Background technology
The pipeline of ships and light boats is one of sources of ships and light boats generation underwater noise.Water noise in the ships and light boats pipeline inner fluid is the effective ingredient of directly outside radiated noise.Fluid in the pipeline is subjected to will producing water noise from after self and the outside excitation, and outwards propagation.The pressure of fluid also produces pressure fluctuation because of the variation of cross section of fluid channel, the influence of tube wall roughness simultaneously.In pipeline, the water noise of fluid and pressure fluctuation all exist with the form of dynamic pressure, and all can propagate along the fluid in the pipe, are difficult in the pipeline and separate.But both variations and propagation law have nothing in common with each other.Water (making an uproar) sound is a kind of sound wave, can long-distance communications, and also the interface that can pass liquid and solid dielectric propagates into another kind of medium from a kind of medium; Pressure fluctuation then is the change procedure of changing mutually between a kind of pressure and flow velocity, pressure fluctuation is just very fast disappearance after leaving pipeline, when running into solid interface, pressure fluctuation can not penetrate solid dielectric to extraneous liquid transfer, so pressure fluctuation be otherwise known as usually " pseudo-sound ".
The water noise of control and reduction pipeline is one of ships and light boats design, manufacturing and operating important technology index, and realizes that the prerequisite of above-mentioned target is to measure accurately the water noise that produces in the pipeline.And the water noise that detects the pipeline inner fluid is the basis of research pipeline fluid sound radiation, must real understanding be arranged to the flow noise characteristic in the pipeline during research pipeline fluid noise.It is the measuring method that past people is used always in test that sensor directly is set in pipeline, but the measured signal of this method is the composite signal of water noise and pressure fluctuation in the pipeline, in measurement result, there is " pseudo-sound " interference inevitably to the water noise signal, the accuracy of measuring is relatively poor, is difficult to judge in esse water noise and change propagation rule thereof in the pipeline.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of pipeline fluid noise auxiliary measuring device that can effectively shield the pressure fluctuation of pipeline inner fluid at the deficiency of above-mentioned prior art existence, provides safeguard for effectively detecting ducted water noise signal.
The present invention for the technical scheme that problem proposed of the above-mentioned existence of solution is: include barrel-shaped sound conduction water tank, the bottom of sound conduction water tank offers the linking slotted eye, be connected the merging of slotted eye and tested pipeline kissing and be tightly connected, be hung with nautical receiving set in the sound conduction water tank with outer tube wall.
Press such scheme, described sound conduction water tank is rectangular barrel-shaped or cylindrical shape, and sound conduction water tank can be made by metal material, tank inner wall bottom and absorbent treatment is set all around.
Press such scheme, the linking slotted eye of described sound conduction water tank is connected with the outer tube wall fixed seal connection or the movable sealing of tested pipeline, be connected slotted eye and equal the pipe xsect for a short time half with the female surface that is connected of pipe outer tube wall lateral cross section, the cambered surface that promptly connects containing equal for a short time the pipe half cycle (≤Л).
Only need when the present invention uses add entry in sound conduction water tank, the interior water of the outer tube wall that makes tested pipeline and water tank contacts, and can detect ducted water noise signal effectively by nautical receiving set.Working mechanism of the present invention is: the water noise of pipeline is a kind of sound wave, can long-distance communications, and also the interface that can pass liquid and solid dielectric propagates into another kind of medium from a kind of medium; The pressure fluctuation of pipeline then is the mutual change procedure of conversion between a kind of pressure and flow velocity, pressure fluctuation leave pipeline after just very fast disappearance, when running into solid interface, pressure fluctuation almost can not penetrate solid dielectric to extraneous liquid transfer.Therefore, the present invention uses the characteristic that sound wave has strong transmission capacity, additional aided measurement device outside pipeline, and the acoustic signals of accepting transmission is the interference that maskable pressure fluctuation is measured water noise, detects the underwater sound signal of pipeline inner fluid.
Beneficial effect of the present invention is: 1, take conduction water tank, can get rid of pressure fluctuation in the pipeline fluid to measuring the influence of water noise, directly the acoustical signal in the measuring channel has solved the problem of extracting underwater sound signal from the fluid of pipeline pressure pulsation and the mixing of water noise signal.This is for the noisiness in the correct understanding pipeline, and the noise of research pipeline inner fluid and the noise reduction of change propagation rule and ships and light boats thereof are stealthy significant.2, the present invention is simple in structure, and metering system is easy, uses flexibly, is convenient to implement in different places, can be to carrying out the tube fluid noise testing at the pipeline of building and having built.3, lay absorbent treatment in the sound conduction water tank and reduced the reflex of tank inner wall, guaranteed the linearity and the accuracy of measurement data sound wave.
Description of drawings
Fig. 1 is the positive sectional structure chart of one embodiment of the invention.
Fig. 2 is the positive sectional structure chart of another embodiment of the present invention.
Embodiment
Further specify embodiments of the invention below in conjunction with accompanying drawing.
First embodiment as shown in Figure 1, include barrel-shaped sound conduction water tank 2, the bottom of sound conduction water tank offer with the tested pipeline diameter wide be connected slotted eye, semicircle orifice is offered at linking slotted eye two ends and tested pipeline matches, be connected slotted eye and equal the pipe xsect half with the female surface that is connected of pipe outer tube wall lateral cross section, the linking slotted eye of sound conduction water tank and the outer tube wall of tested pipeline 1 are integrally welded, constitute the fixed seal connection structure, sound conduction water tank is made by metal material, tank inner wall bottom and liner absorbent treatment 3 all around, absorbent treatment can be sound absorbent rubber, purpose is to reduce the reflection of water noise in sound conduction water tank, reduces the distortion of measurement data.Upper end at sound conduction water tank is installed on messenger wire bar 4, and the messenger wire bar is hung nautical receiving set 5 in sound conduction water tank by messenger wire.
Second embodiment as shown in Figure 1; it is that with the difference of a last embodiment linking slotted eye of conduction water tank is that movable sealing is connected with the outer tube wall of tested pipeline; promptly the linking slotted eye that movable sealing connects is set in the bottom of sound conduction water tank; comprise be connected slotted eye and with the sealing gasket 6 of connecting groove orifice ring shape periphery phase configuration; be provided with fastening clip 9 corresponding to being connected slotted eye; fastening clip links with the bolt 7 that connects firmly in sound conduction water tank bottom surface by the connecting hole of both sides; with be connected the slotted eye shape that becomes to fill the span of a man's arms; by screwing and setting nut 8; sound is conducted water tank to be sealedly attached on the tested pipeline; and the outer tube wall of tested pipeline communicates with the inner chamber of sound conduction water tank; in addition; rubber blanket 10 can be installed in inboard at fastening clip, plays the protection tested pipeline.Constitute the linking slotted eye that movable sealing connects thus.Other structure of present embodiment is identical with first embodiment.
Claims (8)
1, a kind of pipeline fluid noise auxiliary measuring device, it is characterized in that including barrel-shaped sound conduction water tank, the bottom of sound conduction water tank offers the linking slotted eye, is connected the merging of slotted eye and tested pipeline kissing and is tightly connected with outer tube wall, is hung with nautical receiving set in the sound conduction water tank.
2,, it is characterized in that described sound conduction water tank is rectangular barrel-shaped or cylindrical shape by the described pipeline fluid noise auxiliary measuring device of claim 1.
3,, it is characterized in that conduction water tank can be made by metal material, tank inner wall bottom and absorbent treatment is set all around by claim 1 or 2 described pipeline fluid noise auxiliary measuring devices.
4,, it is characterized in that the linking slotted eye of described sound conduction water tank is connected with the outer tube wall fixed seal connection or the movable sealing of tested pipeline by claim 1 or 2 described pipeline fluid noise auxiliary measuring devices.
5, by the described pipeline fluid noise auxiliary measuring device of claim 4, it is characterized in that being connected slotted eye and equal the pipe xsect for a short time half with the female surface that is connected of pipe outer tube wall lateral cross section.
6, by claim 1 or 2 described pipeline fluid noise auxiliary measuring devices, it is characterized in that being installed on the messenger wire bar in the upper end of sound conduction water tank, the messenger wire bar is hung nautical receiving set in sound conduction water tank by messenger wire.
7, by the described pipeline fluid noise auxiliary measuring device of claim 4, it is characterized in that linking slotted eye that described movable sealing connects comprise be connected slotted eye and with the sealing gasket of connecting groove orifice ring shape periphery phase configuration, be provided with fastening clip corresponding to being connected slotted eye, fastening clip links with the bolt that connects firmly in sound conduction water tank bottom surface by the connecting hole of both sides, with be connected the slotted eye shape that becomes to fill the span of a man's arms, by screwing and setting nut, sound is conducted water tank be sealedly attached on the tested pipeline.
8,, it is characterized in that the linking slotted eye of conduction water tank is integrally welded with the outer tube wall of tested pipeline, formation fixed seal connection structure by the described pipeline fluid noise auxiliary measuring device of claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100196205A CN100487394C (en) | 2006-07-13 | 2006-07-13 | Pipeline fluid noise auxiliary measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100196205A CN100487394C (en) | 2006-07-13 | 2006-07-13 | Pipeline fluid noise auxiliary measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1888832A true CN1888832A (en) | 2007-01-03 |
| CN100487394C CN100487394C (en) | 2009-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100196205A Active CN100487394C (en) | 2006-07-13 | 2006-07-13 | Pipeline fluid noise auxiliary measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN100487394C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322935A (en) * | 2011-08-22 | 2012-01-18 | 江苏大学 | Flowing noise measuring device |
| CN102754593A (en) * | 2012-07-24 | 2012-10-31 | 陕西师范大学 | Ultrasound mutation breeding device |
| CN103278234A (en) * | 2013-05-31 | 2013-09-04 | 江苏大学 | Hydraulic machinery operation monitoring device |
| CN106840354A (en) * | 2016-12-26 | 2017-06-13 | 中国船舶工业集团公司第七0八研究所 | A kind of noise-measuring system |
| CN108332065A (en) * | 2018-04-12 | 2018-07-27 | 中国船舶重工集团公司第七〇五研究所 | The device and method of hydrophone monitoring and warning pipe leakage booster and damage from third-party |
-
2006
- 2006-07-13 CN CNB2006100196205A patent/CN100487394C/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322935A (en) * | 2011-08-22 | 2012-01-18 | 江苏大学 | Flowing noise measuring device |
| CN102754593A (en) * | 2012-07-24 | 2012-10-31 | 陕西师范大学 | Ultrasound mutation breeding device |
| CN102754593B (en) * | 2012-07-24 | 2014-10-22 | 陕西师范大学 | Ultrasound mutation breeding device |
| CN103278234A (en) * | 2013-05-31 | 2013-09-04 | 江苏大学 | Hydraulic machinery operation monitoring device |
| CN106840354A (en) * | 2016-12-26 | 2017-06-13 | 中国船舶工业集团公司第七0八研究所 | A kind of noise-measuring system |
| CN108332065A (en) * | 2018-04-12 | 2018-07-27 | 中国船舶重工集团公司第七〇五研究所 | The device and method of hydrophone monitoring and warning pipe leakage booster and damage from third-party |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100487394C (en) | 2009-05-13 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20160613 Address after: 430025 No. four, No. 35, hi tech Development Zone, East Lake hi tech Development Zone, Hubei, Wuhan Patentee after: WUHAN HAIBORUI TECHNOLOGY CO., LTD. Address before: 430064 Hubei Province, Wuhan city Wuchang District Ziyang Road No. 268 Patentee before: China Ship Research and Design Center |
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| TR01 | Transfer of patent right |
Effective date of registration: 20220209 Address after: No. 268, ZhangZhidong Road, Wuchang District, Wuhan City, Hubei Province 430064 Patentee after: China Ship Research and Design Center Address before: 430025 No.35, Gaoxin 4th Road, Donghu hi tech Development Zone, Wuhan City, Hubei Province Patentee before: WUHAN HAIBORUI TECHNOLOGY Co.,Ltd. |
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