CN102435768A - Method and device for measuring flow velocity of rivers and canals by using bubbles - Google Patents
Method and device for measuring flow velocity of rivers and canals by using bubbles Download PDFInfo
- Publication number
- CN102435768A CN102435768A CN201110429917XA CN201110429917A CN102435768A CN 102435768 A CN102435768 A CN 102435768A CN 201110429917X A CN201110429917X A CN 201110429917XA CN 201110429917 A CN201110429917 A CN 201110429917A CN 102435768 A CN102435768 A CN 102435768A
- Authority
- CN
- China
- Prior art keywords
- bubble
- gas
- flow velocity
- flow rate
- rivers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The invention relates to a method and a device for measuring flow velocity of river and canals by using bubbles and belongs to the technical field of flow velocity measurement and flow rate measurement of river channels or canal channels. The invention adopts a technical scheme that: the device comprises a bubble flow meter (1), a video sensor (2), a water level sensor (3), a gas outlet (4) and a gas source (5), wherein the gas outlet is formed at the water bottom of the river channels or the canal channels and is connected with the gas source; the video sensor is arranged above a water surface; and the output ends of the video sensor and the water level sensor are connected with the bubble flow meter. The method and the device have the advantages that: (1) the average flow velocity measurement of all flow layers at the point can be accomplished with only one gas outlet hole at the water bottom; (2) the average flow velocity measurement of profiles can be accomplished with a plurality of gas outlet holes formed at the water bottom; (3) the flow rate can be accurately calculated by a flow velocity area method; (4) the bubble flow meter serving as an intelligent instrument can automatically complete bubble control, video control, data calculation and data transmission; and (5) a full-automatic flow velocity measurement and flow rate calculation real-time monitoring system is formed.
Description
Technical field
The present invention relates to a kind of method and device that utilizes bubble to measure the rivers and canals flow velocity, belong to river course or channel fluid-velocity survey and flow metering technical field.
Background technology
At present, existing river course or channel flow-speed measurement method adopts following three kinds: 1. hand-held rotating plasma current meter, and through the hand-held rotating plasma current meter of people aboard ship, pointwise is carried out hand dipping by different depth; 2. hoist cable formula current meter, in the river course or the channel two ends hoist cable is set, hang current meter on the hoist cable, measure by different depth by the current meter pointwise that the people controls on the hoist cable; 3. V-ADCP Doppler profile current meter is launched ultrasound wave in water body, can gather high-quality flow velocity, water level, data on flows.Above-mentioned these three kinds of modes all can not leave human be operated at the scene on the spot, can't realize long-term online automatic detection flow velocity; V-ADCP Doppler profile current meter not only costs an arm and a leg, and general 300,000 yuans, and the influence of tested water silt content, can not be used for most of Huanghe valleys.The real-time online flow monitoring is puzzlement those skilled in the art's a difficult problem all the time.
Summary of the invention
The object of the invention provides a kind of method and device that utilizes bubble to measure the rivers and canals flow velocity, realizes the outer long-term flow velocity that detects automatically, calculated flow rate, and real-time working solves the problems referred to above that exist in the background technology.
Technical scheme of the present invention is:
A kind of method of utilizing bubble to measure the rivers and canals flow velocity comprises following steps:
1. above the rivers and canals water surface, video sensor is set;
2. at the rivers and canals bottom gas discharge outlet is set, gas discharge outlet links to each other with source of the gas;
3. level sensor is set, measures the water level of rivers and canals; The signal of video sensor, level sensor transfers to central processing unit and carries out analyzing and processing, and the equipment that comprises central processing unit is referred to as the air bubble flow rate appearance, as intelligence instrument;
4. air bubble flow rate appearance pilot-gas escape hole is discharged gas by rule; The gas of discharging forms bubble, and bubble rises to the water surface, passes through each different flow rate layer in the process that bubble rises; When bubble arrives the water surface; Because the effect of flow velocity, the position with gas discharge outlet produces distance in the horizontal direction, and the faster distance of flow velocity is far away more; Video sensor as above the air bubble flow rate appearance control water surface of intelligence instrument looks like to catch to the bubble diagram on climbing up on top of the water; And through the embedded software computed range; Measure the degree of depth of water again through level sensor; Learn bubble rise time, can calculate the average vertical velocity of this measuring point by bubble rise time and bubble translation distance.
Said rivers and canals comprise river course, channel etc.
Measuring method of the present invention, it is on duty to need not personnel, need not personnel's execute-in-place, and only venthole mean flow rate that just can accomplish this each fluid layer of point is measured, and for further high-precision flow calculates most important data is provided.
Said source of the gas can be any pressure gas equipment, like gas cylinder, air pump, gas bag, tracheae etc., gases used water insoluble getting final product.
At least 1 of the quantity of said gas discharge outlet.
At least 1 of the quantity of said video sensor.
Said level sensor can be an any type, comprises types such as float, pressure, ultrasound wave, laser, magnetostriction, electronics water gauge.
A kind of device that utilizes bubble to measure the rivers and canals flow velocity comprises air bubble flow rate appearance, video sensor, level sensor, gas discharge outlet and source of the gas; Gas discharge outlet is arranged on the bottom of river course or channel, and gas discharge outlet is connected with source of the gas through gas exhausting valve, and video sensor is arranged on water surface top, and the output of video sensor, level sensor is connected with the air bubble flow rate appearance; Air bubble flow rate appearance pilot-gas escape hole is discharged gas by rule; The gas of discharging forms bubble, and bubble rises to the water surface, passes through each different flow rate layer in the process that bubble rises; When bubble arrives the water surface; Because the effect of flow velocity, the position with gas discharge outlet produces distance in the horizontal direction, and the faster distance of flow velocity is far away more; Video sensor as above the air bubble flow rate appearance control water surface of intelligence instrument looks like to catch to the bubble diagram on climbing up on top of the water; And through the embedded software computed range; Measure the degree of depth of water again through level sensor; Learn bubble rise time, can calculate the average vertical velocity of this measuring point by bubble rise time and bubble translation distance.
Said gas discharge outlet is controlled by the air bubble flow rate appearance.
At least 1 of the quantity of said gas discharge outlet.
At least 1 of the quantity of said video sensor.
Said level sensor can be an any type, comprises types such as float, pressure, ultrasound wave, laser, magnetostriction, electronics water gauge.
Level sensor, video sensor are known technologies.
Adopt measuring method of the present invention, it is on duty to need not personnel, need not personnel's execute-in-place, and only venthole mean flow rate that just can accomplish this each fluid layer of point is measured, and for further high-precision flow calculates most important data is provided.
Beneficial effect of the present invention: 1. water-bed only venthole just can be accomplished the mean flow rate measurement of this each fluid layer of point; 2. the bottom is established a plurality of ventholes and just can be accomplished the measurement of section mean flow rate; But 3. utilize flow velocity area-method accurate Calculation outflow; 4. can accomplish bubble control, video control, data computation, data transmission automatically as the air bubble flow rate appearance of intelligence instrument; 5. form full-automatic fluid-velocity survey, flow rate calculation real-time monitoring system.
Description of drawings
Accompanying drawing 2 is that the embodiment of the invention connects synoptic diagram;
Among the figure: air bubble flow rate appearance 1, video sensor 2, level sensor 3, gas discharge outlet 4 and source of the gas 5, communicating circuit 6, lithium battery 7, electronic circuit 8, control circuit 9, power supply 10, air compressor machine 11, gas outlet 12, gas exhausting valve 14.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further through embodiment.
In an embodiment, the present invention is applied in the water conservancy rivers and canals, and a kind of method of utilizing bubble to measure the rivers and canals flow velocity comprises following steps:
1. above the rivers and canals water surface, video sensor is set;
2. at the rivers and canals bottom gas discharge outlet is set, gas discharge outlet links to each other with source of the gas;
3. level sensor is set, measures the water level of rivers and canals; The signal of video sensor, level sensor transfers to central processing unit and carries out analyzing and processing, and the equipment that comprises central processing unit is referred to as the air bubble flow rate appearance, as intelligence instrument;
4. air bubble flow rate appearance pilot-gas escape hole is discharged gas by rule; The gas of discharging forms bubble, and bubble rises to the water surface, passes through each different flow rate layer in the process that bubble rises; When bubble arrives the water surface; Because the effect of flow velocity, the position with gas discharge outlet produces distance in the horizontal direction, and the faster distance of flow velocity is far away more; Video sensor as above the air bubble flow rate appearance control water surface of intelligence instrument looks like to catch to the bubble diagram on climbing up on top of the water; And through the embedded software computed range; Measure the degree of depth of water again through level sensor; Learn bubble rise time, can calculate the average vertical velocity of this measuring point by bubble rise time and bubble translation distance.
A kind of device that utilizes bubble to measure the rivers and canals flow velocity comprises air bubble flow rate appearance 1, video sensor 2, level sensor 3, gas discharge outlet 4 and source of the gas 5.Gas discharge outlet is arranged on the bottom of river course or channel, and gas discharge outlet is connected with source of the gas, and video sensor is arranged on water surface top, and the output of video sensor, level sensor is connected with the air bubble flow rate appearance.
Said air bubble flow rate appearance comprises communicating circuit 6, lithium battery 7 and electronic circuit 8, and communicating circuit is connected with electronic circuit with lithium battery, and the output of video sensor, level sensor is connected to electronic circuit.Electronic circuit is exactly a central processing unit.
Said source of the gas comprises air compressor machine 11, gas exhausting valve 14, control circuit 9 and power supply 10; Power supply is connected with air compressor machine through control circuit; Air compressor machine connects gas discharge outlet through gas outlet 12, gas exhausting valve 14, and the electronic circuit of air bubble flow rate appearance connects control circuit.A plurality of vent ports are set on the said gas outlet, and vent port is exactly a gas discharge outlet.The vent port operation valve is controlled by control circuit 9, and the vent port operation valve connects gas discharge outlet, compressed gas cylinder or air compressor machine.
Electronic circuit (central processing unit) carries out analyzing and processing to the signal of video sensor, level sensor, simultaneously through the work of control circuit control air compressor machine; The video sensor of electronic circuit system water surface top looks like to catch to the bubble diagram on climbing up on top of the water; And through the embedded software computed range; Measure the degree of depth of water again through level sensor; Learn bubble rise time, can calculate the average vertical velocity of this measuring point by bubble rise time and bubble translation distance.Lithium battery is electronic circuit, communicating circuit power supply, through communicating circuit the data transmission of electronic circuit is gone out, and makes further analyzing and processing.
Claims (8)
1. method of utilizing bubble to measure the rivers and canals flow velocity is characterized in that comprising following steps:
1. above the rivers and canals water surface, video sensor is set;
2. at the rivers and canals bottom gas discharge outlet is set, gas discharge outlet links to each other with source of the gas;
3. level sensor is set, measures the water level of rivers and canals, the signal of video sensor, level sensor transfers to central processing unit and carries out analyzing and processing, and the equipment that comprises central processing unit is referred to as the air bubble flow rate appearance, as intelligence instrument;
4. air bubble flow rate appearance pilot-gas escape hole is discharged gas by rule; The gas of discharging forms bubble, and bubble rises to the water surface, passes through each different flow rate layer in the process that bubble rises; When bubble arrives the water surface; Because the effect of flow velocity, the position with gas discharge outlet produces distance in the horizontal direction, and the faster distance of flow velocity is far away more; Video sensor as above the air bubble flow rate appearance control water surface of intelligence instrument looks like to catch to the bubble diagram on climbing up on top of the water; And through the embedded software computed range; Measure the degree of depth of water again through level sensor; Learn bubble rise time, can calculate the average vertical velocity of this measuring point by bubble rise time and bubble translation distance.
2. measure the method for rivers and canals flow velocity according to the said bubble that utilizes of claim 1, it is characterized in that said source of the gas, comprise gas cylinder, air compressor machine, gas bag, tracheae, gases used water insoluble.
3. according to claim 1 or the 2 said methods of utilizing bubbles to measure the rivers and canals flow velocity, it is characterized in that at least 1 of the quantity of said gas discharge outlet.
4. measure the method for rivers and canals flow velocity according to the said bubble that utilizes of claim 1, it is characterized in that at least 1 of the quantity of said video sensor.
5. a device that utilizes bubble to measure the rivers and canals flow velocity is characterized in that comprising air bubble flow rate appearance (1), video sensor (2), level sensor (3), gas discharge outlet (4) and source of the gas (5); Gas discharge outlet is arranged on the bottom of river course or channel, and gas discharge outlet is connected with gas exhausting valve and source of the gas, and video sensor is arranged on water surface top, and the output of video sensor, level sensor is connected with the air bubble flow rate appearance; Air bubble flow rate appearance pilot-gas escape hole is discharged gas by rule; The gas of discharging forms bubble, and bubble rises to the water surface, passes through each different flow rate layer in the process that bubble rises; When bubble arrives the water surface; Because the effect of flow velocity, the position with gas discharge outlet produces distance in the horizontal direction, and the faster distance of flow velocity is far away more; Video sensor as above the air bubble flow rate appearance control water surface of intelligence instrument looks like to catch to the bubble diagram on climbing up on top of the water; And through the embedded software computed range; Measure the degree of depth of water again through level sensor; Learn bubble rise time, can calculate the average vertical velocity of this measuring point by bubble rise time and bubble translation distance.
6. measure the device of rivers and canals flow velocity according to the said bubble that utilizes of claim 5, it is characterized in that said level sensor, comprise float, pressure, ultrasound wave, laser, magnetostriction, electronics water gauge.
7. measure the device of rivers and canals flow velocity according to the said bubble that utilizes of claim 5; It is characterized in that said air bubble flow rate appearance; Comprise communicating circuit (6), lithium battery (7) and electronic circuit (8); Communicating circuit is connected with electronic circuit with lithium battery, and the output of video sensor, level sensor is connected to electronic circuit; Electronic circuit is exactly a central processing unit.
8. measure the device of rivers and canals flow velocity according to the said bubble that utilizes of claim 5; It is characterized in that: said source of the gas comprises air compressor machine (11), gas exhausting valve (14), control circuit (9) and power supply (10); Power supply is connected with air compressor machine through control circuit; Air compressor machine is connected gas discharge outlet through gas exhausting valve (14) with gas outlet (12), and the electronic circuit of air bubble flow rate appearance connects control circuit; A plurality of vent ports are set on the said gas outlet, and vent port is exactly a gas discharge outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110429917XA CN102435768A (en) | 2011-12-21 | 2011-12-21 | Method and device for measuring flow velocity of rivers and canals by using bubbles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110429917XA CN102435768A (en) | 2011-12-21 | 2011-12-21 | Method and device for measuring flow velocity of rivers and canals by using bubbles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102435768A true CN102435768A (en) | 2012-05-02 |
Family
ID=45983929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110429917XA Pending CN102435768A (en) | 2011-12-21 | 2011-12-21 | Method and device for measuring flow velocity of rivers and canals by using bubbles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102435768A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793752A (en) * | 2019-10-25 | 2020-02-14 | 山东大学 | Device and method for testing field underground water connectivity |
| CN111854891A (en) * | 2020-06-15 | 2020-10-30 | 华翔翔能科技股份有限公司 | Water level detection method and water level detection system of multi-stage pump station |
| CN113701828A (en) * | 2021-08-27 | 2021-11-26 | 水利部交通运输部国家能源局南京水利科学研究院 | Real-time online river flow measuring device and method based on double-aperture bubble image |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101650202A (en) * | 2009-07-30 | 2010-02-17 | 朱小文 | Method for measuring river discharge |
-
2011
- 2011-12-21 CN CN201110429917XA patent/CN102435768A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101650202A (en) * | 2009-07-30 | 2010-02-17 | 朱小文 | Method for measuring river discharge |
Non-Patent Citations (1)
| Title |
|---|
| 缴健等: "基于水动力学计算的气泡上升规律研究", 《水利信息化》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793752A (en) * | 2019-10-25 | 2020-02-14 | 山东大学 | Device and method for testing field underground water connectivity |
| CN111854891A (en) * | 2020-06-15 | 2020-10-30 | 华翔翔能科技股份有限公司 | Water level detection method and water level detection system of multi-stage pump station |
| CN111854891B (en) * | 2020-06-15 | 2022-08-05 | 华翔翔能科技股份有限公司 | Water level detection method and water level detection system of multi-stage pump station |
| CN113701828A (en) * | 2021-08-27 | 2021-11-26 | 水利部交通运输部国家能源局南京水利科学研究院 | Real-time online river flow measuring device and method based on double-aperture bubble image |
| CN113701828B (en) * | 2021-08-27 | 2023-11-28 | 水利部交通运输部国家能源局南京水利科学研究院 | River flow real-time on-line measuring device and method based on double-aperture bubble image |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201133828Y (en) | Open channel ultrasound flow measurement system | |
| CN102175288A (en) | Method and special device for online measurement of river or canal flow | |
| CN208238853U (en) | A kind of canal capacity automated watch-keeping facility | |
| CN109319052B (en) | Oil bag type Argo buoy buoyancy accurate control method and experimental device thereof | |
| CN105673474B (en) | Pump efficiency, flow and lift detection method and system | |
| CN102435768A (en) | Method and device for measuring flow velocity of rivers and canals by using bubbles | |
| CN102636663A (en) | Method for measuring flow rate of channel by utilizing bubbles and portable bubble flow rate instrument | |
| CN106609661A (en) | A drilling fluid flow detection device and method | |
| CN207488290U (en) | Crude oil water content analytical equipment | |
| CN113932854B (en) | In-situ observation method for methane macroleakage strength of sediment-water interface in cold spring area | |
| CN208187477U (en) | It is a kind of for monitoring the contactless device of drainage pipeline networks flow | |
| CN202453370U (en) | Device for measuring flow speed of graff by utilizing bubbles | |
| CN202486156U (en) | Underwater intelligent hydrometric propeller | |
| CN110006511A (en) | A kind of river pressure type water gauge measured water level correction method | |
| CN105242063B (en) | A kind of tank flow-speed measurement method based on pressure sensor | |
| CN207280913U (en) | A kind of capillary water height tester | |
| CN202049173U (en) | Ultrasonic wave sensor group | |
| CN111650403A (en) | Novel Doppler current profiler calibration device and calibration method thereof | |
| CN108692773B (en) | Tentacle type sensing flow meter based on artificial intelligence technology and flow measuring method thereof | |
| CN202614784U (en) | Portable bubble flow meter using bubbles for measuring flow velocity of channel | |
| CN205448987U (en) | Structural distortion who utilizes laser sensors measures and collection system | |
| JP2005030912A (en) | Monitoring system and method for water environment | |
| CN110937072A (en) | Self-sinking and floating type section observation device | |
| CN104655235B (en) | Depth of water detection means and method in ultrasonic detecting equipment | |
| CN201548260U (en) | Silt channel flow measurement device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120502 |