CN103592462A - Three-directional hydrophone array probe for reservoir seepage Doppler detector - Google Patents
Three-directional hydrophone array probe for reservoir seepage Doppler detector Download PDFInfo
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- CN103592462A CN103592462A CN201310556307.5A CN201310556307A CN103592462A CN 103592462 A CN103592462 A CN 103592462A CN 201310556307 A CN201310556307 A CN 201310556307A CN 103592462 A CN103592462 A CN 103592462A
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Abstract
The invention relates to a three-directional hydrophone array probe for a reservoir seepage Doppler detector. According to the three-directional hydrophone array probe for the reservoir seepage Doppler detector, three sets of hydrophones constitute a hydrophone array; by the adoption of a six-way plastic tube, two plastic tubes are connected in the X-axis direction, two plastic tubes are connected in the Y-axis direction and two plastic tubes are connected in the Z-axis direction; the two hydrophones of each set are installed on tube walls of the two plastic tubes located in the same direction of the two hydrophones, one of the two hydrophones of each set is used for transmission, and the other one of the two hydrophones of each set is used for receiving; each transmission hydrophone motivates an ultrasonic wave signal of a transmitting-receiving circuit module of the reservoir seepage Doppler detector, and each receiving hydrophone receives the ultrasonic signal transmitted through a water body; the ultrasonic signals coming from three directions which are mutually orthogonal are received through the three-directional hydrophone array, the flow speeds of the water body in the three directions are directly detected, and the actual flow speed of the water body is obtained through restoration of the flow speeds of the water body in the three directions. The three-directional hydrophone array probe is used for measuring a seepage flow field and determining the seepage position based on the Doppler effect principle and has the advantages of being simple in structure, high in detection precision, high in speed, and convenient to operate. The three-directional hydrophone array probe can provide reliable technological support for processing of reservoir seepage.
Description
Technical field
The present invention relates to a kind of vitals of detecting devices, specifically a kind of three-dimensional hydrophone array being applied on reservoir leakage detection instrument is popped one's head in, it is the sensor special in direct detection reservoir leakage source, Main Function has been that reservoir leakage detection instrument transmits and receives hyperacoustic function, be used for obtaining storehouse water flow velocity parameter, determine the distribution in reservoir leakage flow field.
Background technology
China has become water conservancy and hydropower big country in the world at present, and the dam building up has more than 8.7 ten thousand, but the whole nation still has more than 40,000 middle-size and small-size reservoir to have the dangerous problem of disease at present.A lot of reservoirs dare not retaining because of seepage of dam, allows water resource flowing away in vain, when needs water, also wants groundwater abstraction, has formed huge waste.
Cause the reason of seepage of dam numerous, this has strengthened the difficulty of dangerously weak reseroirs retrofit works, and active demand can be surveyed the method and technology of seepage position.The leakage detection of reservoir is generally to utilize the method for some physical prospectings to survey, and conventional self-potential method, mise-a-la-masse method, temperature field method etc., coordinate some additive methods also can solve some problems.But a lot of leakage problems are difficult to utilize these methods to be surveyed, main cause: the one, because conventional geophysical prospecting method is all indirect measurement method, can not directly obtain seepage flow field data, the 2nd, because the reason of seepage of dam is a lot, may be foundation seepage around dam seepage, dam, dam seepage etc., add the diversity of dam structure and antiseepage, aforesaid certain methods may be felt simply helpless; In addition, even if seepage position has been found, to process, how is the effect of processing so? therefore need to search out from source seepage position, and whether seepage treatment that can this position of continuous monitoring puts in place.Given this, research and develop a kind of direct measurement seepage flow field, and accurate, quick and easy, detection instrument is extremely badly in need of cheaply, also seems particularly important.
Summary of the invention
The object of the invention is to account for dangerously weak reseroirs ratio for current seepage reservoir high, the problems such as seepage position sensing difficulty is large, cost is high, low precision, and provide a kind of based on Doppler effect principle, utilize ultrasound wave under the impact of water body flow, the characteristic that in communication process, meeting occurrence frequency changes, be used for obtaining storehouse water flow velocity parameter, determine the distribution in reservoir leakage flow field, determine the three-dimensional hydrophone array probe of the detection instrument special use of seepage position.
For achieving the above object, the technical scheme that the present invention takes is: three-dimensional hydrophone array probe for a kind of reservoir leakage doppler detector is provided, comprises nautical receiving set, described nautical receiving set has three groups and forms hydrophone array; Adopt mutually perpendicular six logical plastic pipes on X, Y, Z three-dimensional, respectively to connect two sections of plastic pipes, each group has two nautical receiving sets to be arranged on respectively on two sections of plastic cement tube walls in the same way, the axes intersect of the line of two nautical receiving sets and place plastic pipe; Two nautical receiving sets of each group one of them for transmitting, another is for receiving; Described transmitting nautical receiving set is by the transmission circuit module excitation ultrasound ripple signal of reservoir leakage doppler detector, and receiving hydrophone receives through water body and propagates the ultrasonic signal of coming, and realizes the three-dimensional of ultrasonic signal sample by three-dimensional hydrophone array.
Three-dimensional hydrophone array probe of the present invention is provided with the interface that connects transmitting, reception, control circuit, two hydrophone structure of each group are identical, under the instruction of the total control circuit of detection instrument, can transmit and receive exchange, the actual measurement of each direction for the party upwards one group of nautical receiving set transmitting receive and exchange measure comprehensive.
The centre frequency of nautical receiving set of the present invention is 1MHz.
Of the present invention each to plastic pipe diameter d, is 10～20cm, every to plastic pipe, connect after total length be 25～50cm, plastic pipe is made by low-density low speed material.
The measuring principle of three-dimensional hydrophone array probe of the present invention is: the present invention is based on Doppler's leakage detection technology under water, utilize the Doppler effect of sound wave in communication process: ripple receive frequency when wave source is shifted to recipient uprises, and at wave source receive frequency step-down during away from recipient.When recipient moves, wave source also can obtain same conclusion when motionless.According to the relativity of motion, when wave source is fixed on relative static place with recipient, and medium moves between wave source and recipient, and corresponding variation also occurs the frequency of ripple in communication process.During water body flow, the ultrasound wave that in three-dimensional hydrophone array, the transmitting nautical receiving set of each group sends, propagation receiving hydrophone on the same group through water body receives, when current are when launching nautical receiving set and flow to receiving hydrophone, the frequency receiving diminishes, when current flow to transmitting nautical receiving set by receiving hydrophone, the frequency receiving is to become large; By test, launch the frequency of sound wave variable quantity between nautical receiving set and receiving hydrophone, just can determine speed and the seepage situation of current, consider that water (flow) direction can not just in time be on the line of sending and receiving nautical receiving set, therefore adopt three groups of mutual vertical nautical receiving sets to form array, automatically by the water flow field to test all directions.Probe of the present invention obtains ultrasonic signal, via the software kit of the built-in one-chip computer of reservoir leakage doppler detector, signal is carried out to Analysis of doppler effect on three-dimensional, obtain respectively the water volume flow rate of three directions, and be finally reduced to the true flow velocity of water body.
Reservoir leakage doppler detector of the present invention by the effect that three-dimensional hydrophone array probe has is:
The Doppler effect principle producing when 1, the present invention proposes to propagate in current water based on ultrasound wave first, variation for detecting ultrasonic ripple in current water medium frequency and time, measure seepage flow field, determine seepage position, for the seepage flow of low discharge, also can accurately locate.
2, probe of the present invention is highly sensitive, simple to operate, it is the sensor special in direct detection reservoir leakage source, the various situations such as the applicable foundation seepage around dam seepage, dam, dam seepage, fundamentally solve the detection problem of seepage reservoir in reinforcement problem.
3, reservoir leakage doppler detector of the present invention is easy to use with three-dimensional hydrophone array probe, is beneficial to popularization.
Accompanying drawing explanation
Fig. 1 is the three-dimensional hydrophone array probe perspective view of reservoir leakage doppler detector of the present invention.
Fig. 2 is that three-dimensional hydrophone array probe planar structure master of the present invention looks schematic diagram.
Fig. 3 is the laying schematic diagram of one group of nautical receiving set of array probe X-direction of the present invention.
In above-mentioned figure: 1-X is to nautical receiving set A, 2-X is to nautical receiving set B, and 3-Y is to nautical receiving set A, and 4-Y is to nautical receiving set B, 5-Z is to nautical receiving set A, 6-Z is to nautical receiving set B, and 7-X is to plastic pipe, and 8-Y is to plastic pipe, 9-Z is to plastic pipe, the logical plastic pipe of 10-six, the diameter of d-plastic pipe, two nautical receiving sets of CD-are in axial horizontal range.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment 1: the three-dimensional hydrophone array probe that the invention provides a kind of reservoir leakage doppler detector, its structure as shown in Figure 1, 2, probe of the present invention is the sensor special in direct detection reservoir leakage source, and Main Function has been that reservoir leakage detection instrument transmits and receives hyperacoustic function.
Three-dimensional hydrophone array probe of the present invention has three groups of nautical receiving sets and forms hydrophone array; Adopt mutually perpendicular six logical plastic pipes 10 on X, Y, Z three-dimensional, respectively to connect two sections of plastic pipes, cross section structure and X-direction plastic pipe that in Fig. 2, AA ', BB ' are respectively Z-direction plastic pipe are arranged on the cross section structures in six logical plastic pipes 10.In hydrophone array, each group has two nautical receiving sets to be arranged on respectively on two sections of plastic cement tube walls in the same way, as X-direction nautical receiving set A1 and X-direction nautical receiving set B2 are arranged on respectively on two sections of tube walls of X-direction plastic pipe 7, two nautical receiving sets relative position on tube wall remains unchanged, the axes intersect of the line of two nautical receiving sets and place plastic pipe, referring to Fig. 3.
Described plastic pipe is made by low-density low speed material, plastic pipe diameter d is 10cm, every to plastic pipe, connect after total length be 40cm, two nautical receiving sets are in the situation that axial horizontal range CD is 16cm, can make the signal of one group of nautical receiving set transmit and receive performance and reach optimum.Same Y-direction nautical receiving set A3 and Y-direction nautical receiving set B4 are arranged on respectively on two sections of Y-direction plastic pipe 8 tube walls, and Z-direction nautical receiving set A5 and Z-direction nautical receiving set B6 are arranged on respectively on two sections of Z-direction plastic pipe 9 tube walls.
Two nautical receiving sets of each group in the present embodiment, wherein X-direction nautical receiving set A1 and X-direction nautical receiving set B2, Y-direction nautical receiving set A3 and Y-direction nautical receiving set B4, Z-direction nautical receiving set A5 and Z-direction nautical receiving set B6 pairing are used, every pair of nautical receiving set transmits and receives mutual use, namely, at a measurement point, every pair of nautical receiving set will gather two secondary data.Described transmitting nautical receiving set is by the transmission circuit module transmitting ultrasonic signal of reservoir leakage doppler detector, exciting hyperacoustic centre frequency that nautical receiving set sends is 1MHz, the data sampling speed of every passage is 10Msps, total control circuit by reservoir leakage doppler detector by control each to one group of nautical receiving set in transmitting nautical receiving set transmitting ultrasonic signal, by receiving hydrophone, receive through water body and propagate the ultrasonic signal of coming, when the ultrasound data of a direction is sampled complete, according to the instruction of total control circuit, gathered successively the three-dimensional sampling of the ultrasonic signal of three directions.
Hydrophone array formula three-dimensional probe of the present invention is provided with the interface that connects transmitting, reception, control circuit, and two hydrophone structure of each group are identical, and two nautical receiving sets can transmit and receive exchange under the instruction of the total control circuit of instrument is controlled.
Embodiment 2: the three-dimensional hydrophone array probe that the invention provides a kind of reservoir leakage doppler detector, its structure is substantially the same manner as Example 1, different just plastic pipe diameter d are 20cm, every to plastic pipe, connect after total length be 50cm, two nautical receiving sets are 30cm at axial horizontal range CD.
The undeclared part of the present invention all can adopt existing techniques in realizing, repeats no more here.
Claims (4)
1. a three-dimensional hydrophone array probe for reservoir leakage doppler detector, comprises nautical receiving set, it is characterized in that: described nautical receiving set has three groups and forms hydrophone array; Adopt mutually perpendicular six logical plastic pipes on X, Y, Z three-dimensional, respectively to connect two sections of plastic pipes, each group has two nautical receiving sets to be arranged on respectively on two sections of plastic cement tube walls in the same way, the axes intersect of the line of two nautical receiving sets and place plastic pipe; Two nautical receiving sets of each group one of them for transmitting, another is for receiving; Described transmitting nautical receiving set is by the transmission circuit module excitation ultrasound ripple signal of reservoir leakage doppler detector, and receiving hydrophone receives through water body and propagates the ultrasonic signal of coming, and realizes the three-dimensional of ultrasonic signal sample by three-dimensional hydrophone array.
2. reservoir leakage doppler detector according to claim 1 is popped one's head in three-dimensional hydrophone array, it is characterized in that: described three-dimensional hydrophone array probe is provided with the interface that connects transmitting, reception, control circuit, two hydrophone structure of each group are identical, under the instruction of the total control circuit of detection instrument, can transmit and receive exchange, the actual measurement of each direction for the party upwards one group of nautical receiving set transmitting receive and exchange measure comprehensive.
3. three-dimensional hydrophone array probe for reservoir leakage doppler detector according to claim 1, is characterized in that: the centre frequency of described nautical receiving set is 1MHz.
4. reservoir leakage doppler detector according to claim 1 is popped one's head in three-dimensional hydrophone array, it is characterized in that: described each is 10～20cm to plastic pipe diameter d, every to plastic pipe, connect after total length be 25～50cm, plastic pipe is made by low-density low speed material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310556307.5A CN103592462B (en) | 2013-11-11 | 2013-11-11 | Reservoir leakage doppler detector three-dimensional hydrophone array is popped one's head in |
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| CN201310556307.5A CN103592462B (en) | 2013-11-11 | 2013-11-11 | Reservoir leakage doppler detector three-dimensional hydrophone array is popped one's head in |
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| CN103592462B CN103592462B (en) | 2015-08-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836346A (en) * | 2014-02-24 | 2014-06-04 | 中国海洋石油总公司 | Underwater natural gas pipeline connector leakage monitoring system |
| CN107850516A (en) * | 2015-05-20 | 2018-03-27 | 沙特阿拉伯石油公司 | Detect the sampling technique of hydrocarbon seepage |
| CN108982316A (en) * | 2018-06-14 | 2018-12-11 | 河海大学文天学院 | One kind being based on unmanned machine testing dam back side concrete surface osmotic system and method |
Citations (3)
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|---|---|---|---|---|
| US4438652A (en) * | 1981-03-06 | 1984-03-27 | Hitachi, Ltd. | Ultrasonic Doppler flowmeter |
| CN101382562A (en) * | 2008-10-21 | 2009-03-11 | 上海第二工业大学 | Seven-degree of freedom flow speed measurement method with common adaptability |
| CN103226198A (en) * | 2013-03-14 | 2013-07-31 | 华南理工大学 | Doppler-effect-based underwater target positioning method and device |
-
2013
- 2013-11-11 CN CN201310556307.5A patent/CN103592462B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4438652A (en) * | 1981-03-06 | 1984-03-27 | Hitachi, Ltd. | Ultrasonic Doppler flowmeter |
| CN101382562A (en) * | 2008-10-21 | 2009-03-11 | 上海第二工业大学 | Seven-degree of freedom flow speed measurement method with common adaptability |
| CN103226198A (en) * | 2013-03-14 | 2013-07-31 | 华南理工大学 | Doppler-effect-based underwater target positioning method and device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836346A (en) * | 2014-02-24 | 2014-06-04 | 中国海洋石油总公司 | Underwater natural gas pipeline connector leakage monitoring system |
| CN107850516A (en) * | 2015-05-20 | 2018-03-27 | 沙特阿拉伯石油公司 | Detect the sampling technique of hydrocarbon seepage |
| CN107850516B (en) * | 2015-05-20 | 2021-05-28 | 沙特阿拉伯石油公司 | Sampling technique for detecting hydrocarbon leaks |
| CN108982316A (en) * | 2018-06-14 | 2018-12-11 | 河海大学文天学院 | One kind being based on unmanned machine testing dam back side concrete surface osmotic system and method |
| CN108982316B (en) * | 2018-06-14 | 2020-11-27 | 河海大学文天学院 | Dam back surface concrete surface seepage detection system and method based on unmanned aerial vehicle |
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| CN103592462B (en) | 2015-08-05 |
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