CN202794218U - Real-time on-line depth averaged velocity measurement apparatus - Google Patents
Real-time on-line depth averaged velocity measurement apparatus Download PDFInfo
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- CN202794218U CN202794218U CN 201220367113 CN201220367113U CN202794218U CN 202794218 U CN202794218 U CN 202794218U CN 201220367113 CN201220367113 CN 201220367113 CN 201220367113 U CN201220367113 U CN 201220367113U CN 202794218 U CN202794218 U CN 202794218U
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Abstract
The utility model provides a real-time on-line depth averaged velocity measurement apparatus with a rigid parallelogram structure, wherein four corners of the structure are connected by hinges. The real-time on-line depth averaged velocity measurement apparatus comprises the components as following: a floating drum; an undercarriage comprising two rigid rods of an equal length, one end of each rigid rod is hinged to the floating drum, the other end is hinged to a pedestal, and the two rigid rods are mutually parallel; the pedestal, which is a cement prefabricated board disposed on a riverbed and is parallel with the floating drum; and a point type flow velocity instrument which is horizontally arranged between the two rigid rods or replaced by a single-beam Doppler velocity meter which is arranged at the front end of back end of the floating drum. According to the utility model, on-line and automatic continuous velocity measurement is realized when the real-time on-line depth averaged velocity measurement apparatus is utilized combining with a velocity measurement module with a two-vertical energy slope method, a plurality of vertical velocities in a section are calculated, and the flow is calculated employing the classical flow measurement principle with a flow velocity-area method. Thereby, the physical concept is clear, rarely building project is required, installation is convenient, the price is low, and the real-time on-line depth averaged velocity measurement apparatus is practical and simple.
Description
Technical field
It is the flat shape quadrilateral structure of rigidity and four jiaos with the mean velocity in vertical real-time online speed measuring devices that are hinged that the utility model relates to a kind of reality that is applicable to measure rivers, open channel flow rate.
Background technology
Adopt the mechanical type rotor current meter to carry out the method for the fluid-velocity survey of certain point in the fluid, the past is general is current meter method.Adopt traditional flow measurement method of this instrument to have two kinds, the one, the measuring staff method namely is installed in the method that enters some flow velocitys in the water gaging fluid on the measuring staff to current meter; The 2nd, the fish lead method namely is installed in current meter on the fish lead, hangs with wire rope and holds fish lead, relies on the conduct oneself with dignity method of some flow velocitys in the water gaging fluid of fish lead.On the same vertical line position on the water-carrying section, usually to survey one or more flow velocity, calculate again the mean flow rate of vertical line, different according to the flow measurement accuracy requirement, generally to lay 5,10 even tens vertical lines that test the speed in the whole water-carrying section, therefore the flow measurement that must cross the river, its method that the crosses the river method of paddling, the rope boat measurement method that crosses the river, power boat measurement method, Anchor Pattern are decided the boat measurement method, cableway adds the various ways such as fish lead mensuration and bridge survey method.The current meter of measurement point flow velocity also has (can adapt to the measurement of heavily silt-carrying river flow velocity) such as time difference method pitometer, electromagnetic current metres except rotating element current meter.
In recent years, acoustic flow measurement speed Instrument Development is very fast, and such as single beam ADCP doppler velocimeter, flow measurement speed is fast, can work under water for a long time.Adopt the planted agent or the ship borne type mounting means of the rope traction of crossing the river, can measure single wide mean flow rate, usually also can think the mean flow rate of a vertical line.
Measuring method about rivers and canals flow vertical velocity, the inventor has applied for patent of invention " two-line energy slope flow rate metering method " (patent No.: ZL 200610072431.4) in 2006, the utility model patent technology of this application is the technical equipment of the measurement mean velocity in vertical that matches with the foregoing invention patent.
The utility model content
The purpose of this utility model provides a kind of mean velocity in vertical real-time online speed measuring device, it adopts the two-line energy slope hydrometry, the characteristics that can work under water for a long time in conjunction with acoustics pitometer or electromagnetic current metre and single beam Doppler ADCP current meter, as long as safe and reliable being fixed on the described vertical velocity speed measuring device of these current meters, measure the flow velocity of two vertical lines, then obtain the model parameter of calculating vertical velocity, can calculate according to the two-line energy slope method flow velocity of many vertical lines, use at last that classical flow velocity--area-method is calculated flow, and make things convenient for repair and maintenance, realize the purpose of the optimized online and continuous flow measurement of cost performance, solving the artificial flow measurement method in hydrometric station falls behind, the flow measurement time is long, labour intensity is large, it is low to survey big vast ability, the problems such as the simple and flow measurement precision of extraodinary flood flow measurement counter-measure can not guarantee, the realization unattended duty, the purpose of whole robotization flow measurements.
For reaching above-mentioned purpose, it is rigidity parallelogram sturcutre and four jiaos of mean velocity in vertical real-time online speed measuring devices that usefulness is hinged that the utility model provides a kind of reality, and it comprises:
Floating drum places a rigidity basket frame usually;
Undercarriage is two isometric rigid rods (bar of broad sense comprises the truss that the top band is hinged), and a wherein end of two rigid rods is hinged with floating drum respectively, and two rigid rods are parallel to each other;
Pedestal, for cement pre-fabricated panel and be positioned on the riverbed, the other end of described pedestal and described two rigid rods is hinged, and described pedestal parallels with described floating drum; And
Point type current meter, level are installed between described two rigid rods.
Described mean velocity in vertical real-time online speed measuring device, wherein, the quantity of described point type current meter is at least one.
Described mean velocity in vertical real-time online speed measuring device, wherein, the quantity of described point type current meter can be for a plurality of, and its different water depth place level between described two rigid rods is installed.
Described mean velocity in vertical real-time online speed measuring device, wherein, described floating drum adopt can inflation/deflation the software keg float.
Described mean velocity in vertical real-time online speed measuring device, wherein, described floating drum adopts can water-filling and the PVC cylinder that discharges water.
The utility model also provides a kind of mean velocity in vertical real-time online speed measuring device, and it comprises:
Floating drum places a rigidity basket frame usually;
Undercarriage is two isometric rigid rods, and a wherein end of two rigid rods is hinged with the basket frame two ends of floating drum respectively, and two rigid rods are parallel to each other;
Pedestal, for cement pre-fabricated panel and be positioned on the riverbed, the other end of described pedestal and described two rigid rods is hinged, and described pedestal parallels with described floating drum; And
Single beam Doppler current meter is connected to a side of floating drum.
Described mean velocity in vertical real-time online speed measuring device, wherein, described floating drum adopt can inflation/deflation the software keg float.
Described mean velocity in vertical real-time online speed measuring device, wherein, described floating drum adopts can water-filling and the PVC cylinder that discharges water.
Described mean velocity in vertical real-time online speed measuring device, wherein, described single beam Doppler current meter is installed in front end or the rear end of floating drum.
To sum up, the utlity model has following advantage:
1. in order a vertical line position one or more sets point type current meters to be installed, accomplish to measure automatically and simultaneously one or more flow velocity, utilize proportional how much laws of corresponding sides in following parallel on the parallelogram and the right-angle triangle, and according to Archimedes's theorem, make one be enclosed within the float buoyancy effect can free buoyance lift and cancel buoyancy after rely on dead load freely to descend device (being called undercarriage), realize the purpose of a vertical velocity of testing.
2. in order to make the single beam ADCP doppler velocimeter can be firmly and be installed in accurately on the riverbed, and the horizontal sextant angle that makes the single beam doppler velocimeter send wave beam in the flow measurement process meets designing requirement and is parallel to water (flow) direction, utilize geometrical principle following parallel on the parallelogram, and according to Archimedes' principle, make one be enclosed within the float buoyancy effect can free buoyance lift and cancel buoyancy after rely on dead load freely to descend device (undercarriage), single beam Doppler current meter pedestal is installed on front end or the rear end of floating drum, instrument is sunken to the river bed with undercarriage during flow measurement, freely floats on the surface of the water during maintenance.
3. change is deep-cut foundation ditch and is given the thinking of burying pedestal, becomes and adopts ultra-thin, long narrow geometric configuration and the prefabricated component of deadweight, plays the effect that pedestal is stablized undercarriage.As adopting 4.2 meters of length after mortar tamped, wide 0.5 meter, thick 0.12 meter standard floor prefabricated component, Parallel to the flow direction is sunken to the way of river bed.
Description of drawings
Fig. 1 is the working state schematic representation of mean velocity in vertical real-time online speed measuring device of the present utility model;
Fig. 2 is the repair and maintenance view that the utility model uses the single beam doppler velocimeter;
Fig. 3 is the working state schematic representation that the utility model uses the single beam doppler velocimeter.
Description of reference numerals: 1-undercarriage; The 2-pedestal; The 3-floating drum; 4-point type current meter; The 5-riverbed; 6-single beam Doppler current meter; The 7-beam of sound.
Embodiment
About the utility model is the application target that reaches above-mentioned and effect and the technological means that adopts, now enumerate better feasible embodiment, and cooperate shown in the accompanying drawing, details are as follows:
As shown in Figure 1, it is the working state schematic representation of mean velocity in vertical real-time online speed measuring device of the present utility model.According to the mean velocity in vertical measuring characteristic, in water-carrying section, automatically measure one or more flow velocity simultaneously, utilize in the parallel and right-angle triangle (triangle that the hypotenuse of parallelogram and vertical line form) of the upper bottom of parallelogram proportional how much laws of corresponding sides and according to Archimedes' principle, make one be enclosed within the float buoyancy effect can free lifting device (being called undercarriage), realize no matter under any circumstance can measuring the purpose of a mean velocity in vertical.Therefore in the first embodiment, described mean velocity in vertical real-time online speed measuring device comprises: undercarriage 1, pedestal 2, floating drum 3 and point type current meter 4.Described floating drum 3 places a rigidity basket frame usually; Described undercarriage 1 is two isometric rigid rod (bars of broad sense, comprise the truss that the top band is hinged), a wherein end of described two rigid rods is hinged with pedestal 2 respectively, the other end of two rigid rods respectively with floating drum 3(or air bag) basket frame two ends are hinged, and guarantee during installation that two rigid rods are parallel to each other.At different depth of water positions at least one point type current meter is installed between described two rigid rods.
Described floating drum 3 adopt can inflation/deflation the software keg float or can water-filling and the PVC(Polyvinylchloride that discharges water, tygon) cylinder.
Said structure be under buoyancy or dead load effect can free lifting undercarriage, can adjust according to customer requirements and maximum sectional water depth and Peak Flow Rate situation, then, flow measurement accuracy requirement according to user's proposition, respectively by the requirement of flow measurement regulation and stipulation, at different depth of water positions, use 2 points, 3 points, 5 methods (or 0.6 depth of water one point method) level is installed the dissimilar measuring point formula current meters such as ultrasound wave pitometer or electromagnetic current metre, under the buoyancy that floating drum 3 produces, lifting along with water level, undercarriage 1 has become parallelogram thereupon, the version of parallelogram has guaranteed that point type current meter 4 is parallel with current all the time in lifting process.And then according to the proportional geological theorems of similar triangles corresponding sides, lifting along with water level, point type current meter 4 relative water depths that are installed on the undercarriage 1 are constant, and the 0.2h in the time of thereupon can surveying relative water depth, 0.6h, 0.8h(h represent the depth of water) etc. the flow velocity of each point.
The advantage of above-mentioned the first embodiment is: in conjunction with the velocity-area method principle of measuring runoff, and clear physical concept, low price, practicality, simple.
Yet it also limits to some extent, namely is subject to the floating thing impact, has the section of shipping request to implement, the inconvenient Maintenance and Repair of high water phase.
Again as shown in Figure 3, the utility model also provides the second embodiment, the difference of itself and the first embodiment is: the current meter that adopts is single beam Doppler current meter (sentry's formula single beam or other multi-beam doppler velocimeter), installation site and the floating drum of single beam Doppler current meter link together, usually at the place ahead or the rear of floating drum.Be in when working online state, be sunken to the bottom, riverbed with undercarriage; During repair and maintenance, single beam Doppler current meter rises to the water surface with floating drum, after repair and maintenance is finished, generally crouches on the riverbed, is in holding state.
The advantage of the second embodiment is: be applicable to the single beam doppler velocimeter, flow rate information is abundant, not affected by shipping, floating thing, and repair and maintenance is convenient.
Yet its limitation is: price is higher than the first embodiment, rushes what variation riverbed greatly and should not install.
Pedestal among the first and second embodiment also adopts particular design, change traditional thinking of deep-cutting the pre-buried pedestal of foundation ditch, a limit (being pedestal) of the bottom of above-mentioned parallelogram is changed into ultra-thin, long narrow cement pre-fabricated panel, utilize its geometric configuration long narrow and from great characteristics, it is played be equivalent to pedestal to the stable effect of undercarriage.As, the precast floor slab Parallel to the flow direction is sunken to the way of river bed.On can be directly at the bottom of the cement canal that can during stopping, construct being fixed on two hinges of parallelogram bottom at the bottom of the canal.
The inventor has applied for patent of invention (patent No.: ZL 200610072431.4) in 2006, the utility model patent technology of this application is the technical equipment of the measurement mean velocity in vertical that matches with the foregoing invention patent.Adopt two-line energy slope method flow measurement method, the characteristics that can work under water for a long time in conjunction with acoustics or electromagnetic current metre, as long as safe and reliable being fixed on the vertical velocity speed measuring device of the present utility model of these current meters, can realize the purpose of the optimized online and continuous flow measurement of cost performance, and solve that the artificial flow measurement method in hydrometric station falls behind, the flow measurement time is long, labour intensity is large, survey that big vast ability is low, overflow stage the problem such as flow measurement low precision, realize unattended duty, whole current measured technologies of robotizations.
The utility model vertical velocity speed measuring device combines with patent of invention technology two-line energy slope method flow measurement method, can produce following effect: realize that 1. flow measurement is online.2. expand the flow velocity scope (0-10m/s) that tests the speed, greatly improved the big vast ability of surveying.3. greatly shortened the flow measurement time, improved flow measurement efficient, just can finish an inferior flow measurement time shorten of survey to original about 1 hour and arrive 5 minutes.Not affected by floating thing and range of stage, can really create world-class and the current measured technology top standard.
Application case:
1. No. 1 gaging section of reservoir water delivery trunk canal, Taihe county, Shandong Province Zhao family ditch aqueduct.
Basic condition: channel is shaped as rectangular cross section, and the limit wall is flat with the cement mortar lining, and channel is wide 4.0 meters, and rule is smooth, but apart from the place of 80 meters of upstream aqueduct export shortfalls a bend is arranged, and the water flow stationary degree is bad.
What present case adopted is the scheme of " the first embodiment ", formulates construction scheme in July, 2010, and the current measuring instrument of employing is the pitometer (knotmeter) that Dalian seapeak instrument company produces, and the flow measurement scheme is the three point method flow measurement.
Put into operation in March, 2011, and it is reliable to operate steadily.
2. hydrometric station, Hubei Province's Xiaogan City garden.1.5 kilometers have a rubber overflow dam below this station gaging section, and low water season, mean velocity in section only about 0.2m/s, surpassed 3m/s overflow stage.The flow measurement method that adopts is the method for embodiment 2.But using instrument identical with " the first embodiment ", also is the three point method flow measurement, and per hour the current surveying device automatic lifting once after flow measurement was complete in 5 minutes, sinks on the riverbed automatically.This case was implemented to finish in November, 2010, the test that does not stand the impact of great flood floating thing in service.
3. the hydrometric station identical with " the second embodiment " also has the first hydrometric station, boundary in Anhui Province, and the current meter of employing is single velocity of wave ADCP, is planted agent's formula mode that tests the speed, at present just in force.
To sum up, the utlity model has following advantage:
1. in order a vertical line position one or more sets point type current meters to be installed, accomplish to measure automatically and simultaneously one or more flow velocity, utilize proportional how much laws of corresponding sides in following parallel on the parallelogram and the right-angle triangle, according to Archimedes's theorem, make one be enclosed within the float buoyancy effect can free lifting device (being called undercarriage), realize the purpose of a vertical velocity of testing.
2. in order to make the single beam ADCP doppler velocimeter can be firmly and be installed in accurately on the riverbed, and the horizontal sextant angle that makes the single beam doppler velocimeter send wave beam in the flow measurement process meets designing requirement and is parallel to water (flow) direction, utilize geometrical principle following parallel on the parallelogram, and according to Archimedes' principle, make one be enclosed within the float buoyancy effect can free lifting device (undercarriage), single beam Doppler current meter is installed on front end or the rear end of floating drum, instrument is sunken to the river bed with undercarriage during flow measurement, floats on the surface of the water during maintenance.
3. change is deep-cut foundation ditch and is given the thinking of burying pedestal, becomes to adopt ultra-thin, long narrow geometric configuration and from great prefabricated component, play the effect that pedestal is stablized undercarriage.As adopting 4.2 meters of length after mortar tamped, wide 0.5 meter, thick 0.12 meter standard floor prefabricated component, Parallel to the flow direction is sunken to the way of river bed.
More than be illustrative to description of the present utility model; and it is nonrestrictive; those skilled in the art is understood, and can carry out many modifications, variation or equivalence to it within spirit that claim limits and scope, but they will fall in the protection domain of the present utility model all.
Claims (9)
1. a mean velocity in vertical real-time online speed measuring device is characterized in that, comprising:
Floating drum places a rigidity basket frame;
Undercarriage is two isometric rigid rods, and a wherein end of two rigid rods is hinged with the basket frame two ends of floating drum respectively, and two rigid rods are parallel to each other;
Pedestal, for cement pre-fabricated panel and be positioned on the riverbed, the other end of described pedestal and described two rigid rods is hinged, and described pedestal parallels with described floating drum; And
The point type current meter, level connection joint is between described two rigid rods.
2. mean velocity in vertical real-time online speed measuring device according to claim 1 is characterized in that, the quantity of described point type current meter is at least one.
3. mean velocity in vertical real-time online speed measuring device according to claim 2 is characterized in that, the quantity of described point type current meter is a plurality of, its different water depth position water safety dress between described two rigid rods.
4. according to claim 1,2 or 3 described mean velocity in vertical real-time online speed measuring devices, it is characterized in that, described floating drum adopt can inflation/deflation the software keg float.
5. according to claim 1,2 or 3 described mean velocity in vertical real-time online speed measuring devices, it is characterized in that described floating drum adopts the PVC cylinder of can water-filling and discharging water.
6. a mean velocity in vertical real-time online speed measuring device is characterized in that, comprising:
Floating drum places a rigidity basket frame;
Undercarriage is two isometric rigid rods, and a wherein end of two rigid rods is hinged with the basket frame two ends of floating drum respectively, and two rigid rods are parallel to each other;
Pedestal, for cement pre-fabricated panel and be positioned on the riverbed, the other end of described pedestal and described two rigid rods is hinged, and described pedestal parallels with described floating drum; And
Single beam Doppler current meter is connected to a side of floating drum.
7. mean velocity in vertical real-time online speed measuring device according to claim 6 is characterized in that, described floating drum adopt can inflation/deflation the software keg float.
8. mean velocity in vertical real-time online speed measuring device according to claim 6 is characterized in that, described floating drum adopts can water-filling and the PVC cylinder that discharges water.
9. mean velocity in vertical real-time online speed measuring device according to claim 6 is characterized in that, described single beam Doppler current meter is connected to front end or the rear end of floating drum.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220367113 CN202794218U (en) | 2012-07-26 | 2012-07-26 | Real-time on-line depth averaged velocity measurement apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220367113 CN202794218U (en) | 2012-07-26 | 2012-07-26 | Real-time on-line depth averaged velocity measurement apparatus |
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| CN202794218U true CN202794218U (en) | 2013-03-13 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534856A (en) * | 2017-03-06 | 2018-09-14 | 石河子大学 | A kind of river intelligent velocity instrument battle array |
| CN112254772A (en) * | 2020-10-15 | 2021-01-22 | 唐山现代工控技术有限公司 | Integrated hanging vertical line flow measuring instrument and flow measuring method thereof |
| CN112378456A (en) * | 2020-12-03 | 2021-02-19 | 武汉新烽光电股份有限公司 | Device and method for real-time online measurement of river channel section area and flow |
| CN112730879A (en) * | 2020-12-08 | 2021-04-30 | 扬州大学 | Intelligent river flow velocity measuring device and method |
| CN113358163A (en) * | 2020-11-07 | 2021-09-07 | 济南和一汇盛科技发展有限责任公司 | Open channel section water flow online measuring device and measuring and controlling method |
| CN114609408A (en) * | 2022-01-27 | 2022-06-10 | 浙江水利水电学院 | Multifunctional novel water flow speed measuring device |
-
2012
- 2012-07-26 CN CN 201220367113 patent/CN202794218U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534856A (en) * | 2017-03-06 | 2018-09-14 | 石河子大学 | A kind of river intelligent velocity instrument battle array |
| CN112254772A (en) * | 2020-10-15 | 2021-01-22 | 唐山现代工控技术有限公司 | Integrated hanging vertical line flow measuring instrument and flow measuring method thereof |
| CN113358163A (en) * | 2020-11-07 | 2021-09-07 | 济南和一汇盛科技发展有限责任公司 | Open channel section water flow online measuring device and measuring and controlling method |
| CN112378456A (en) * | 2020-12-03 | 2021-02-19 | 武汉新烽光电股份有限公司 | Device and method for real-time online measurement of river channel section area and flow |
| CN112378456B (en) * | 2020-12-03 | 2022-03-15 | 武汉新烽光电股份有限公司 | Device and method for real-time online measurement of river channel section area and flow |
| CN112730879A (en) * | 2020-12-08 | 2021-04-30 | 扬州大学 | Intelligent river flow velocity measuring device and method |
| CN114609408A (en) * | 2022-01-27 | 2022-06-10 | 浙江水利水电学院 | Multifunctional novel water flow speed measuring device |
| CN114609408B (en) * | 2022-01-27 | 2023-09-19 | 浙江水利水电学院 | Multifunctional water flow speed measuring device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20140726 |
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