CN206773187U - The device of gas circulation is calculated based on acoustics backscatter intensity - Google Patents
The device of gas circulation is calculated based on acoustics backscatter intensity Download PDFInfo
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- CN206773187U CN206773187U CN201720575639.1U CN201720575639U CN206773187U CN 206773187 U CN206773187 U CN 206773187U CN 201720575639 U CN201720575639 U CN 201720575639U CN 206773187 U CN206773187 U CN 206773187U
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- micropore ceramic
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Abstract
It the utility model is related to the device that gas circulation is calculated based on acoustics backscatter intensity, including tank, sonar R-T unit, air pump and the Sonar Probe being arranged in tank, micro- camera and micropore ceramic tube, the sonar R-T unit is connected with sonar probe, and the micropore ceramic tube is connected by airway tube with air pump；The micropore ceramic tube is arranged on the bottom of tank, and sonar is popped one's head in is arranged on the surface of micropore ceramic tube at certain intervals, and the micro- camera is arranged on the side of micropore ceramic tube, and micro- camera is connected by cable with PC；Pressure gauge is provided with the air pump, to detect air pump pressure value, current meter is additionally provided with airway tube, to monitor gas flow rate, reasonable in design, convenient operation.
Description
Technical field
It the utility model is related to a kind of device that gas circulation is calculated based on acoustics backscatter intensity.
Background technology
For Expulsion activity extensive development of the seeping fluid into seawater in continental margin seabed, this is a kind of wide in marine environment
General natural phenomena.Under earth's crust dynamic action, natural gas migration upwards inside the earth's crust, leaked into through submarine sedimentary strata
In seawater, seabed bubble plume is formed.The main component methane of natural gas is a kind of strong greenhouse gases, phase homogenous quantities
Contribution of the methane gas to greenhouse effects is more than 20 times of carbon dioxide.It is estimated that the methane of the cold spring activity seepage in seabed is every
It there are about 20 Tg in year and enter air, the amount of dissolving methane in the seawater is then more huge, so as to global environment and weather generation
Material impact, and accurately calculate cold seepage seepage natural gas flow flux and have to global ring layer interaction and global change research due
It is significant.
The measurement for submarine methane plume gas flux is mainly carried out in a manner of in site measurement at present, using compared with
More is measured by turbine seepage tent flowmeter.Though the method for in site measurement can be realized to single submarine methane plumage
The accurate measurement of shape stream gas flux, but its is less efficient, and typically to pass through underwater in deeper water, this work
People realizes that cost is higher and is difficult to long-term observation.Larger acoustic impedance difference in view of seawater and methane gas be present, sound wave exists
When running into bubble in extra large water transmission, strong scattering process can be produced, using sound remote sensing method to Sea bed stability
Detection, and the measuring and calculating to gas seepage flux can be realized, its key technology is exactly to establish backscatter intensity and natural
The corresponding relation of gas leakage flux, for this reason, it is necessary to which it is strong to propose that one kind can accurately determine backscattering in laboratory environments
Degree and the device of the relation of gas migration flux, and then provide technology to detect sea-bottom natural gas leakage using sound remote sensing method
Support.
Utility model content
The utility model proposes a kind of device that gas circulation is calculated based on acoustics backscatter intensity, by manufacturing gas
Plume, analysis plume echo image are steeped, support is provided to detect sea-bottom natural gas leakage using sound remote sensing method.
The utility model is realized using following technical scheme：
The device of gas circulation is calculated based on acoustics backscatter intensity, by manufacturing bubble plume, analyzes pinniform
Flow back to ripple image, it is possible to achieve accurately determine backscatter intensity and the relation of gas migration flux, institute in laboratory environments
Stating device includes tank, sonar R-T unit, air pump and the Sonar Probe being arranged in tank, micro- camera and micropore ceramics
Pipe, the sonar R-T unit are connected with sonar probe, and the micropore ceramic tube is connected by airway tube with air pump；The micropore
Earthenware is arranged on the bottom of tank, and sonar is popped one's head in is arranged on the surface of micropore ceramic tube, the microfacies at certain intervals
Machine is arranged on the side of micropore ceramic tube, and micro- camera is connected by cable with a PC, the video letter of micro- cameras record
Number PC is transferred to by submerged cable, submerged cable has function of supplying power concurrently, by video signal transmission to PC, for recording
The characteristics of motion of rising bubble；And pressure gauge is provided with the air pump, to detect air pump pressure value, also set on airway tube
Current meter is equipped with, to monitor gas flow rate.
Further, be provided with a fixed frame in tank, the fixed frame include horizontal base and with level
The vertical vertical rack of base, and micro- camera is arranged on horizontal base, and can be slided on horizontal base, it is convenient to adjust water
Under micro- camera optical axis, to focus on and the bubble of accurate measurement generation, micro- camera are horizontal positioned, it is ensured that in bubble formation
It is detected and measured.
Further, be provided with LED light source on the vertical rack, be easy to adjust brightness, obtain apparent video or
Photo.
Further, the fixed frame is stainless steel, to improve underwater corrosion resistance, improves device and uses the longevity
Life.
Compared with prior art, it is the advantages of the utility model with good effect：
The device that the utility model is proposed includes tank, sonar R-T unit, air pump and the sound being arranged in tank
Receive probe, micro- camera and micropore ceramic tube, bubble plume is manufactured by air pump and micropore ceramic tube under water, and analyze plumage
Shape flows back to ripple image, and combines sonar probe and carried with sonar R-T unit to calculate acoustics backscatter intensity with gas circulation
Supplier just, structure design advantages of simple, and convenient operation is implemented, and is carried to detect sea-bottom natural gas leakage using sound remote sensing method
For technical support, there is far reaching significance.
Brief description of the drawings
Fig. 1 is the utility model embodiment described device principle schematic diagram.
Embodiment
In order to which above-mentioned purpose of the present utility model, feature and advantage are more clearly understood, below in conjunction with the accompanying drawings and
Embodiment is described further to the utility model.
Embodiment 1, the present embodiment are disclosed a kind of device that gas circulation is calculated based on acoustics backscatter intensity, realized
Backscatter intensity and the relation of gas migration flux are accurately determined in laboratory environments, by manufacturing bubble plume, point
Analyse plume echo image.With reference to figure 1, described device includes tank 12, sonar R-T unit 2, air pump 1 and is arranged on tank
Sonar Probe 6, micro- camera 7 and micropore ceramic tube 5 in 12, the sonar R-T unit 2 is connected with sonar probe 6, described
Micropore ceramic tube 5 is connected by airway tube with air pump 1；The micropore ceramic tube 5 is arranged on the bottom of tank 12, sonar probe 6
The surface of micropore ceramic tube 5 is arranged at certain intervals, and the micro- camera 7 is arranged on the side of micropore ceramic tube 5；And
Pressure gauge 3 is provided with the air pump 1, to detect air pump pressure value, current meter 4 is additionally provided with airway tube, to monitor gas
Rate of flow of fluid.
In the present embodiment, the tank 12 uses glass material, and a stainless steel fixed frame, institute are provided with tank 12
Stating fixed frame includes horizontal base 9 and the vertical rack 10 vertical with horizontal base, and micro- camera 9 is arranged on horizontal base
It on seat 9, and can slide, the optical axis of the convenient underwater micro- camera 7 of regulation, be generated with focusing and accurate measurement on horizontal base 9
Bubble, be provided with LED light source 11 on the vertical rack 10, be easy to adjust brightness, obtain apparent video or photo, show
Microfacies machine 7 is horizontal positioned, it is ensured that it is detected and measured in bubble formation.
In order to facilitate the characteristics of motion of record rising bubble, described device also includes PC（Do not illustrate in figure）, microfacies
Machine 7 is connected by cable with PC, and the vision signal that micro- camera 7 records is transferred to PC, submerged cable by submerged cable
Function of supplying power is had concurrently, by video signal transmission to PC.
The specific operation process of this implementation described device is as follows：Air pump 1 is pressurizeed first, and is detected and pressed by pressure gauge 3
Force value, after certain pressure is reached, air pump air bleeding valve is opened, micropore ceramic tube 5 in tank 12 is inflated by airway tube
To produce bubble, and then simulation air curtain 8 is produced between micropore ceramic tube 5 and sonar probe 6, while supervised in real time by current meter 4
Gas flow rate is surveyed, microphotograph is carried out to simulation air curtain by micro- camera 7, bubble diameter size distribution is obtained from photo；
Changed by the bore of micropore ceramic tube（Change the micropore ceramic tube of different pore size）To generate different size of bubble, microfacies
Machine is accurately determined to Air Bubble Size, and then is easy to analyze the change of plume volume backscatter intensity.Adjust air bleeding valve
Aperture changes gas stream flux magnitude, analyzes the change of its volume backscatter intensity, and then can draw plumage under " shadowing effect "
Numerical relation of the shape stream containing air tightness and backscatter intensity, and then to detect sea-bottom natural gas leakage using sound remote sensing method
Technical support is provided, there is far reaching significance.
It is described above, only it is preferred embodiment of the present utility model, is not that other forms are made to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of change is applied to other fields, but every without departing from the content of the technical scheme of the utility model, according to this reality
Any simple modification, equivalent variations and the remodeling made with new technical spirit to above example, it is new to still fall within this practicality
The protection domain of type technical scheme.
Claims (4)
1. the device of gas circulation is calculated based on acoustics backscatter intensity, it is characterised in that including tank, sonar transmitting-receiving dress
Put, air pump and sonar probe, micro- camera and the micropore ceramic tube being arranged in tank, the sonar R-T unit and sonar
Probe is connected, and the micropore ceramic tube is connected by airway tube with air pump；
The micropore ceramic tube is arranged on the bottom of tank, sonar probe be arranged at certain intervals micropore ceramic tube just on
Side, the micro- camera is arranged on the side of micropore ceramic tube, and micro- camera is connected by cable with a PC；
The pressure gauge of detection air pump pressure is provided with the air pump, the flow velocity of monitoring gas flow rate is additionally provided with airway tube
Instrument.
2. device according to claim 1, it is characterised in that：A fixed frame, the fixed frame are provided with tank
Frame includes horizontal base and the vertical rack vertical with horizontal base, and micro- camera is arranged on horizontal base, and can be
Slided on horizontal base.
3. device according to claim 2, it is characterised in that：LED light source is provided with the vertical rack.
4. device according to claim 3, it is characterised in that：The fixed frame is stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720575639.1U CN206773187U (en) | 2017-05-23 | 2017-05-23 | The device of gas circulation is calculated based on acoustics backscatter intensity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720575639.1U CN206773187U (en) | 2017-05-23 | 2017-05-23 | The device of gas circulation is calculated based on acoustics backscatter intensity |
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| Publication Number | Publication Date |
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| CN206773187U true CN206773187U (en) | 2017-12-19 |
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| CN201720575639.1U Active CN206773187U (en) | 2017-05-23 | 2017-05-23 | The device of gas circulation is calculated based on acoustics backscatter intensity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931777A (en) * | 2018-04-09 | 2018-12-04 | 青岛海洋地质研究所 | The measurement method of cold seepage output gas migration flux |
-
2017
- 2017-05-23 CN CN201720575639.1U patent/CN206773187U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931777A (en) * | 2018-04-09 | 2018-12-04 | 青岛海洋地质研究所 | The measurement method of cold seepage output gas migration flux |
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