CN103776500A - Sound wave splitter for measuring floating speed of bubbles of leaked natural gas of cold spring on seabed - Google Patents
Sound wave splitter for measuring floating speed of bubbles of leaked natural gas of cold spring on seabed Download PDFInfo
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- CN103776500A CN103776500A CN201410045180.5A CN201410045180A CN103776500A CN 103776500 A CN103776500 A CN 103776500A CN 201410045180 A CN201410045180 A CN 201410045180A CN 103776500 A CN103776500 A CN 103776500A
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Abstract
The invention discloses a sound wave splitter for measuring the floating speed of bubbles of leaked natural gas of a cold spring on a seabed. The sound wave splitter comprises a sound wave splitter body, a fixing base transaudient section, a flat sound wave transmitting transducer, a fixing base and a seal connector, wherein the sound wave splitter body comprises an end part and at least two sound wave splitting mechanisms; the sound wave splitting mechanisms are all the same in structure; a first sound wave reflection plate is mounted on each sound wave splitting mechanism; a second sound wave reflection plate is arranged between the sound wave splitting mechanisms; the two ends of the fixing base transaudient section are respectively and fixedly connected with the other side of the end part and one side of the fixing base; the flat sound wave transmitting transducer is mounted on the end surface of the fixing base sound transmitting section and positioned inside a seal chamber inside the fixing base; the seal connector is fixedly connected with the other side of the fixing base. As sound waves formed by the sound wave splitter penetrate though the bubbles uniformly distributed in a measuring channel, the floating speed of the leaked natural gas bubbles of the cold spring on the seabed can be measured.
Description
Technical field
The present invention relates to a kind of sound wave shunt of measuring cold seepage gas seepage bubble floating speed, its objective is the minute bubbles that the bubble of rising is divided into equal and opposite in direction and is evenly distributed, bubble-seawater the two-phase flow being evenly distributed for obtaining acoustic impedance, it is the vitals of cold seepage gas seepage flow original position ultrasonic measurement system.
Background technology
Cold seepage gas seepage flow in-situ measurement device is a new technology of nearly more than ten years foreign study development, and the research in this field is just like a raging fire carrying out in the world.The U.S. is preferential high-tech project of subsidizing using deep-sea technology as national marine field.Within 1998, Harry professor Roberts of seashore research institute of Louisiana State University has has designed and manufactured cold seepage fluid observation device, has successfully observed the gas vent system of Gulfian Bush Hill.Within 1999,15 colleges and universities are organized by Gulfian gas hydrate study federation, 5 federal agencies and Shuo Jia private company, taken the lead by University of Mississippi, carried out the systematic research of sea bed gas hydrate real-time monitored, to the Gulfian, Mississippi Canyon Block118 has carried out geochemistry, microorganism and seismological observation.Meanwhile, the holy tower Barbara in University of California branch school adopts designed cold seepage observation device to observe the typical gas seepage in the whole world such as Hydrate Ridge and the Gulfian and gas hydrate development area.The phylogenetic hydrate of seepage (leakage type hydrate) have bury shallow, easily exploitation, be worth high.The annual quantity that is discharged into the methane in ocean water body and atmosphere by this cold seepage gas seepage is very surprising, and preliminary being estimated as is greater than 10Tg (10
12g) annual.Methane is strong greenhouse gases, and its greenhouse effect are the more than 20 times of equal in quality carbon dioxide, and so the methane of enormous quantity is a material impact factor of Global climate change.Therefore, the online in-situ investigation of cold seepage gas seepage speed is had to important economic worth and scientific meaning.At present, at home about the research of cold seepage natural gas leakage in-situ flow rate on-line measurement device is carried out, Guangzhou Geochemistry Inst., Chinese Academy of Sciences now successfully develops two cover cold seepage natural gas leakage in-situ flow rate on-line measurement devices, fill up the blank of China in this field, but this two covering device of succeeding in developing due to the restriction such as material, components and parts, power consumption and device stable work in work poor, be difficult to cold seepage seepage system gas discharge to carry out the original position online observation of long-term many environment.
Summary of the invention
The invention provides a kind of sound wave shunt of measuring cold seepage gas seepage bubble floating speed, it forms two-way spectrum signature at least, sound wave that energy is identical by sound wave shunt body, the sound wave that feature is identical penetrates into measures equally distributed bubble in passage, form at least two-way transmitted acoustic pulse, receive for outer transducer, be used for measuring cold seepage gas seepage bubble floating speed, simple in structure, measure accurately.
For realizing above object, the technical scheme that the present invention takes is:
Measure the sound wave shunt of cold seepage gas seepage bubble floating speed, it comprises sound wave shunt body, transaudient section of holder, flat soic wave transmitting energy converter, holder and sealing adaptor, wherein, sound wave shunt body comprise end and with integrated at least two sound waves of described end one side mechanism along separate routes, described at least two sound waves along separate routes structure of mechanism are all identical, each sound wave is all installed one first sound wave baffle-board in mechanism along separate routes, and between mechanism, be provided with one second sound wave baffle-board along separate routes at described at least two sound waves, the two ends that holder is transaudient section are fixedly connected with the opposite side of described end and a side of holder respectively, flat soic wave transmitting energy converter is installed on the end face of transaudient section of holder and is positioned at the annular seal space that holder is provided with, sealing adaptor is fixedly connected on the opposite side of holder, the driving cable being connected with flat soic wave transmitting energy converter is connected with outside source by sealing adaptor.
The effect of holder is in measurement, flat soic wave transmitting energy converter to be sealed; In annular seal space, fill acoustical material, absorb the interference wave that flat soic wave transmitting energy converter sends; Connection sealing joint on end cover, the effect of sealing adaptor is to connect driving cable, drives flat soic wave transmitting energy converter to send the sound wave of certain frequency; The effect that holder is transaudient section is that the compressional wave that the flat soic wave transmitting energy converter of conduction sends enters sound wave shunt; The effect of the first sound wave baffle-board and the second sound wave baffle-board is the propagated that the sound wave edge after making along separate routes designs; Sound wave shunt body is that the sound wave for sound source is produced is divided at least two-way homology sound wave.
Upwards the cold seepage rock gas bubble of seepage is by special measurement passage, the minute bubbles that the bubble of floating first forms equal and opposite in direction and is evenly distributed in passage, enter into subsequently ultrasonic sensor and measure passage, outside source is electrically connected so that it launches certain frequency continuous sound wave signal by driving cable and flat soic wave transmitting energy converter, form at least two-way spectrum signature by sound wave shunt body, the sound wave that energy is identical, the sound wave that feature is identical penetrates into measures equally distributed bubble in passage, form at least two-way transmitted acoustic pulse, receive for outer transducer, be used for measuring cold seepage gas seepage bubble floating speed.
Transaudient section of described holder is fixedly connected with by the fit structure of lock-screw harmony ripple shunt parallels with end.
Described holder comprises holder stage casing and end cover, transaudient section of described holder one end away from sound wave shunt body is provided with a web joint matching with holder stage casing shape, described end cover and web joint are fixedly connected on respectively the both sides in holder stage casing, one end of sealing adaptor is fixed on end cover, described annular seal space is arranged between holder stage casing or holder stage casing and end cover, and driving cable is connected with flat soic wave transmitting energy converter by end cover by end cover the driving cable that is through in sealing adaptor.
Between described holder stage casing and end cover and web joint, be equipped with a Gask-O-Seal.
The other end of described sealing adaptor is fixedly connected with a flexible pipe by a conic nut, and described flexible pipe is connected with sealing adaptor.
In described annular seal space, be filled with sound-absorbing material layer.
Described the first sound wave baffle-board and the second sound wave baffle-board are steel plate.
Described the first sound wave baffle-board is square.
Described sound wave along separate routes mechanism is two, and described the second sound wave baffle-board is taper.
Described the second sound wave baffle-board is fixed on the fixed head of sound wave shunt body exterior by support bar.
The present invention compared with prior art, tool has the following advantages: the present invention forms two-way spectrum signature at least, sound wave that energy is identical by sound wave shunt body, the sound wave that feature is identical penetrates into measures equally distributed bubble in passage, form at least two-way transmitted acoustic pulse, receive for outer transducer, for measuring cold seepage gas seepage bubble floating speed.Simple in structure, measure accurately.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention measures the sound wave shunt of cold seepage gas seepage bubble floating speed;
Fig. 2 is the cut-open view of Fig. 1;
Fig. 3 is the decomposition texture schematic diagram of Fig. 1.
Wherein: 1, sound wave shunt body; 2, sound wave baffle-board; 3, support bar; 4, sound wave baffle-board; 5, lock-screw; 6, sound wave shunt parallels; 7, transaudient section of holder; 8, flat soic wave transmitting energy converter; 9, holder stage casing; 10, end cover; 11, sealing adaptor; 12, conic nut; 13, flexible pipe.
Embodiment
Below in conjunction with the drawings and specific embodiments, content of the present invention is described in further details.
Embodiment:
Refer to shown in Fig. 1-3, the sound wave shunt of measuring cold seepage gas seepage bubble floating speed is made up of sound source, sound wave shunt body 1, sound wave baffle-board; Sound source part is made up of transaudient section 7 of holder, flat soic wave transmitting energy converter 8, holder stage casing 9, end cover 10, sealing adaptor 11; Holder is connected with end cover 10 with holder stage casing 9 by screw for transaudient section 7, left end transaudient section 7 of holder is installed flat acoustic wave transducer, end cover 10 is connected with sealing adaptor 11, and the flexible pipe 13 of nylon structure is fixed on sealing adaptor 11 by conic nut 12.The end of sound wave shunt body 1 is connected for transaudient section 7 with the holder in sound source part by lock-screw 5 harmony ripple shunt parallels 6, the sound wave baffle-board 2 of square bar material is arranged on each sound wave one side of mechanism along separate routes in sound wave shunt body 1, and the sound wave baffle-board 4 that xsect is leg-of-mutton Steel material is arranged at sound wave along separate routes between mechanism by support bar 3.In the present embodiment, flat soic wave transmitting energy converter 8 left ends are installed driving cable, and driving cable is connected with outside source by sealing adaptor 11 and flexible pipe 13.In the present embodiment, holder stage casing 9 seals by O-ring seal and transaudient section 7 of holder and end cover 10.In the present embodiment, metal part is generally with the 316L stainless steel material that adopts seawater corrosion resistance.
Above-listed detailed description is for the illustrating of possible embodiments of the present invention, and this embodiment is not in order to limit the scope of the invention, and the equivalence that all the present invention of disengaging do is implemented or changed, and all should be contained in the protection domain of this case.
Claims (10)
1. measure the sound wave shunt of cold seepage gas seepage bubble floating speed, it is characterized in that, it comprises sound wave shunt body (1), transaudient section of holder (7), flat soic wave transmitting energy converter (8), holder and sealing adaptor (11), wherein, sound wave shunt body (1) comprise end and with integrated at least two sound waves of described end one side mechanism along separate routes, described at least two sound waves along separate routes structure of mechanism are all identical, each sound wave is all installed one first sound wave baffle-board (2) in mechanism along separate routes, and between mechanism, be provided with one second sound wave baffle-board (4) along separate routes at described at least two sound waves, the two ends of holder transaudient section (7) are fixedly connected with the opposite side of described end and a side of holder respectively, flat soic wave transmitting energy converter (8) is installed on the end face of holder transaudient section (7) and is positioned at the annular seal space that holder is provided with, sealing adaptor (11) is fixedly connected on the opposite side of holder, the driving cable being connected with flat soic wave transmitting energy converter (8) is connected with outside source by sealing adaptor (11).
2. the sound wave shunt of measurement cold seepage gas seepage bubble floating speed according to claim 1, it is characterized in that, described holder transaudient section (7) is fixedly connected with by the fit structure of lock-screw (5) harmony ripple shunt parallels (6) with end.
3. the sound wave shunt of measurement cold seepage gas seepage bubble floating speed according to claim 1, it is characterized in that, described holder comprises holder stage casing (9) and end cover (10), described holder transaudient section (7) is provided with a web joint matching with holder stage casing (9) shape away from one end of sound wave shunt body (1), described end cover (10) and web joint are fixedly connected on respectively the both sides of holder stage casing (9), one end of sealing adaptor (11) is fixed on end cover (10), described annular seal space is arranged at holder stage casing (9), or between holder stage casing (9) and end cover (10), driving cable is connected with flat soic wave transmitting energy converter (8) by end cover (10) by end cover (10) the driving cable that is through in sealing adaptor (11).
4. the sound wave shunt of measurement cold seepage gas seepage bubble floating speed according to claim 3, is characterized in that, between described holder stage casing (9) and end cover (10) and web joint, is equipped with a Gask-O-Seal.
5. the sound wave shunt of measurement cold seepage gas seepage bubble floating speed according to claim 3, it is characterized in that, the other end of described sealing adaptor (11) is fixedly connected with a flexible pipe (13) by a conic nut (12), and described flexible pipe (13) is connected with sealing adaptor (11).
6. according to the sound wave shunt of the measurement cold seepage gas seepage bubble floating speed described in claim 1-5 any one, it is characterized in that, in described annular seal space, be filled with sound-absorbing material layer.
7. according to the sound wave shunt of the measurement cold seepage gas seepage bubble floating speed described in claim 1-5 any one, it is characterized in that, described the first sound wave baffle-board (2) and the second sound wave baffle-board (4) are steel plate.
8. the sound wave shunt of measurement cold seepage gas seepage bubble floating speed according to claim 7, is characterized in that, described the first sound wave baffle-board (2) is square.
9. the sound wave shunt of measurement cold seepage gas seepage bubble floating speed according to claim 7, is characterized in that, described sound wave along separate routes mechanism is two, and described the second sound wave baffle-board (4) is taper.
10. the sound wave shunt of measurement cold seepage gas seepage bubble floating speed according to claim 9, is characterized in that, described the second sound wave baffle-board (4) is fixed on the outside fixed head of sound wave shunt body (1) by support bar (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410045180.5A CN103776500B (en) | 2014-02-07 | 2014-02-07 | Measure the sound wave shunt of cold seepage gas seepage gas bubble light soil |
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| CN201410045180.5A CN103776500B (en) | 2014-02-07 | 2014-02-07 | Measure the sound wave shunt of cold seepage gas seepage gas bubble light soil |
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| CN103776500A true CN103776500A (en) | 2014-05-07 |
| CN103776500B CN103776500B (en) | 2016-08-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807512A (en) * | 2015-04-14 | 2015-07-29 | 广东工业大学 | Method of ultrasonically measuring seabed leaked gas flow |
| CN106291564A (en) * | 2015-06-05 | 2017-01-04 | 中国科学院声学研究所 | A kind of cold seepage water body reflection sounding system and method |
| CN110308303A (en) * | 2019-06-13 | 2019-10-08 | 中国科学院南海海洋研究所 | Measure the acoustic receiver sensing device of cold seepage leakage bobble rise velocity |
| CN110320384A (en) * | 2019-06-13 | 2019-10-11 | 中国科学院南海海洋研究所 | A kind of Acoustic wave measuring apparatus of sea bottom percolation bobble rise velocity |
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| CN102207399A (en) * | 2011-04-02 | 2011-10-05 | 中国科学院广州地球化学研究所 | Motor-driven flap valve drainage and gas-collecting system for seabed coldspring leakage flow measurement |
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Patent Citations (5)
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| US5796882A (en) * | 1995-08-02 | 1998-08-18 | Schmid; Steffen | Acousto-optical waveguide device, tunable, with a polarization independent response, and a method for the acousto-optical processing of optical signals |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807512A (en) * | 2015-04-14 | 2015-07-29 | 广东工业大学 | Method of ultrasonically measuring seabed leaked gas flow |
| CN104807512B (en) * | 2015-04-14 | 2018-06-01 | 广东工业大学 | A kind of method of ultrasonic measurement sea bottom percolation throughput |
| CN106291564A (en) * | 2015-06-05 | 2017-01-04 | 中国科学院声学研究所 | A kind of cold seepage water body reflection sounding system and method |
| CN106291564B (en) * | 2015-06-05 | 2019-06-04 | 中国科学院声学研究所 | A kind of cold seepage water body reflection sounding system and method |
| CN110308303A (en) * | 2019-06-13 | 2019-10-08 | 中国科学院南海海洋研究所 | Measure the acoustic receiver sensing device of cold seepage leakage bobble rise velocity |
| CN110320384A (en) * | 2019-06-13 | 2019-10-11 | 中国科学院南海海洋研究所 | A kind of Acoustic wave measuring apparatus of sea bottom percolation bobble rise velocity |
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