CN105756008A - Automatic sand adding device for tidal estuary sediment physical model - Google Patents
Automatic sand adding device for tidal estuary sediment physical model Download PDFInfo
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- CN105756008A CN105756008A CN201610256343.3A CN201610256343A CN105756008A CN 105756008 A CN105756008 A CN 105756008A CN 201610256343 A CN201610256343 A CN 201610256343A CN 105756008 A CN105756008 A CN 105756008A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
- E02B1/02—Hydraulic models
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Abstract
The invention relates to the technical field of water conservancy experiments, and provides an automatic sand adding device for a tidal estuary sediment physical model. The tidal estuary sediment physical model comprises a model riverway, and a model estuary is arranged on the downstream portion of the model riverway. The automatic sand adding device comprises a clear water pond, a sand supply pond and a terminal device. The clear water pond and the sand supply pond are each provided with an output pipeline. A sand adding pipe is arranged at the tail end formed after the output pipelines are gathered. The clear water pond and the sand supply pond are each provided with a flow control structure. An online turbidimeter is arranged on an outlet of the sand adding pipe. The online turbidimeter and the flow control structures are all controlled by the terminal device. The automatic sand adding device monitors the sand content in the model riverway in real time, the sand content of incoming running water is removed from the rating curve sand adding amount, the sand adding mount is made to meet experiment requirements, and experiment precision is improved. When sand does not need to be added, the terminal device controls the water to flow out of a sand adding hole of the sand adding pipe continuously, and the function of preventing the sand adding pipe from being blocked can be achieved.
Description
Technical field
The present invention relates to the technical field of water conservancy test, particularly for the sand supply automatically device of tidal estuary sediment physical model.
Background technology
In the field of research current and sediment movement, simulating river is a kind of common laboratory facilities, wherein work simulation experiment in river has used River function to gain knowledge, it is simulated to natural river or when there being hydraulic structure in the lab, to study actual stream structure, river bed change, engineering proposal effect etc..
In river model test, often relate to Xuan Sha gaza problem.River course is carried out gaza by the gaza's curve reserved according to rate in prior art, but because model test is generally adopted cycling use of water, after model test reaches some cycles, the current carrying out flow path direction also have certain silt content, as still according to rating curve gaza, the increase that gaza will be caused to measure, affects model test precision.And, during model gaza, tidal estuary, the generally upper river to trial zone, gaza during ebb tide, at the incoming tide not gaza；Downstream river course to trial zone, at the incoming tide gaza, ebb tide Shi Bu gaza, add sand tube gaza and there is intermittence, it is in not gaza's period, and hole, gaza very easily blocks.
Summary of the invention
It is an object of the invention to provide the sand supply automatically device for tidal estuary sediment physical model, it is intended to solve in existing river model test process, along with the carrying out of experiment, silt content can exceed the problem that predetermined value causes experimental precision to decline.
The present invention is realized in, sand supply automatically device for tidal estuary sediment physical model, described tidal estuary sediment physical model includes model river course, downstream, described model river course has model river mouth, including clear water reserviors, sandbox and termination, described clear water reserviors and described sandbox are equipped with output pipe, described output pipe collects rear end and is provided with for adding sand tube for described model river course gaza, described clear water reserviors and described sandbox are equipped with flow control structure, the described sand tube exit that adds is provided with the in-line turbidimeter for detecting silt content, described in-line turbidimeter and described flow control structure control by described termination.
Further, described output pipe includes the upstream feed pipe being connected to described clear water reserviors with the upstream being connected to described sandbox for sand tube, the described sand tube that adds includes being arranged at the upstream of upstream, described model river course and adds sand tube, described upstream feed pipe and described upstream are provided with described upstream for the line end that sand tube collects and add sand tube, described upstream feed pipe and described upstream for the electromagnetic flowmeter being respectively provided with detection flow on sand tube.
Further, add river course upstream end residing for sand tube in described upstream and be provided with described in-line turbidimeter.
Further, described output pipe includes the downstream water supply pipe and the downstream confession sand tube that are connected to described clear water reserviors and described sandbox, the described sand tube that adds includes being arranged at the downstream at described model river mouth place and adds sand tube, described downstream water supply pipe and described downstream are provided with for the line end that sand tube collects to be stated downstream and adds sand tube, described downstream water supply pipe and described downstream and be respectively equipped with described electromagnetic flowmeter on sand tube.
Further, add river course downstream part residing for sand tube in described downstream and be provided with described in-line turbidimeter.
Further, described sandbox include for the husky pond of bubble that mixed model is husky, for provide preset concentration silt mix Sha Chi, for keeping in the pond, gaza of silt and there is the Fen Shachi of constant water level, the described husky pond of bubble, described in mix Sha Chi, pond, described gaza and described point of husky pond and pass sequentially through unidirectional sewage pump transhipment silt, described point of husky pond is provided with described output pipe.
Further, mix Sha Chi, pond, described gaza and described point of husky pond described in and be equipped with agitator.
Further, the muddy water overfall for the arsenicbearing gold ores that refluxes it is provided with between described point of husky pond and pond, described gaza.
Further, described clear water reserviors include cistern and have the pond that adds of constant water level, described cistern and described adding and be provided with clean water overflow mouth between pond, described in add pond and be provided with described output pipe.
Further, described flow control structure includes one-way water pump and for controlling the frequency-variable controller of described one-way water pump.
Compared with prior art, the sand supply automatically device for tidal estuary sediment physical model in the present invention, silt content in model river course is monitored by real time, measuring from rating curve gaza, deduction carrys out the silt content in flowing water, and according to result of calculation, model river course is carried out gaza, make gaza's amount meet requirement of experiment, improve experimental precision.And when not needing gaza, terminal unit controls water and continues, from hole, the gaza outflow adding sand tube, to play the effect avoiding its blocking.
Accompanying drawing explanation
The overall structure schematic diagram of the sand supply automatically device for tidal estuary sediment physical model that Fig. 1 provides for the embodiment of the present invention；
Fig. 2 is the close-up schematic view at A place in Fig. 1；
Fig. 3 controls schematic diagram for the termination of the sand supply automatically device for tidal estuary sediment physical model that the embodiment of the present invention provides.
Detailed description of the invention
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish.The embodiment described below with reference to accompanying drawing is illustrative of, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it will be appreciated that, term " length ", " width ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or hint indication device or element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
In describing the invention, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or integral；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be connection or the interaction relationship of two elements of two element internals.For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in the present invention as the case may be.
Below in conjunction with concrete accompanying drawing, the realization of the present embodiment is described in detail.
As shown in Figure 1 to Figure 3, tidal estuary sediment physical model includes model river course 2, simulation sea area 22 and simulation pond 23, the downstream in model river course 2 exports current by model river mouth 21 and silt enters simulation sea area 22, simulation sea area 22 realizes exchanging with simulation pond 23 by two way water pump, simulation pond 23 provides recirculation water by pipeline to the upstream in model river course 2, makes water circulate in whole tidal estuary sediment physical model.The present embodiment provides the sand supply automatically device for tidal estuary sediment physical model, mainly includes clear water reserviors 12, sandbox 11 and the several part of termination 15.
Clear water reserviors 12 and sandbox 11 are equipped with output pipe 13, are respectively connecting to two output pipes 13 of clear water reserviors 12 and sandbox 11 and collect and become a pipeline, are provided with for adding sand tube 14 for model river course 2 gaza at end.Clear water and silt flow out from two output pipes 13 respectively and collect, and finally enter and add sand tube 14.Adding sand tube 14 and go deep in model river course 2, it is provided with hole, multiple gaza, silt and water is added in model river course 2 by hole, gaza, completes gaza.
Clear water reserviors 12 and sandbox 11 are connected to output pipe 13 place and are equipped with flow control structure 152, are provided with the in-line turbidimeter 151 for detecting silt content adding sand tube 14 exit, and in-line turbidimeter 151 and flow control structure 152 control by termination 15.Termination 15 by in-line turbidimeter 151 gather containing husky data, the experimental data contrast with default, control the quantity delivered of clear water and silt thereby through flow control structure 152, regulate and make it meet requirement of experiment containing husky data.
When adopting tidal estuary sediment physical model to test, if the sand supply automatically device being provided without in the present embodiment, due to water circulation, it is back to the clear water of upstream, model river course 2 carries a certain amount of silt from simulation pond 23, after this part water enters model river course 2, if adding sand tube 14 according to rating curve gaza, more than adding the husky amount that sand tube 14 adds, can there is deviation with test requirements document in the silt content in water.And after have employed sand supply automatically device, in-line turbidimeter 151 can be sent to termination 15 containing husky data by Real-time Collection, the termination 15 theoretical gaza amount according to the silt content data gathered and subsequent time experimental model, calculate gaza's amount that model is actually needed, this gaza amount has deducted the silt content in flowing water, it is less than adding sand tube 14 former predetermined gaza amount, termination 15 controls flow control structure 152, make the quantity of sand and mud that sandbox 11 exports according to value of calculation, thus eliminating the interference that backflow silt entrained by clear water brings, avoid the occurrence of deviation, ensure that outstanding husky model test is similar to sediment concentration field stimulation.
In the stage not needing gaza, termination 15 controls sandbox 11 and stops output silt, and clear water reserviors 12 continue to export clear water so that have lasting water to flow through hole, gaza in sand tube 14 adding, it is to avoid hole, gaza is blocked.
According to above-mentioned operation principle, for the sand supply automatically device of tidal estuary sediment physical model in the present embodiment, it adopts termination 15 to calculate the mode revising gaza's amount, eliminate the interference carrying silt in flowing water to experimental model, and can calculate according to the data gathered and automatically control gaza in real time, ensure that outstanding husky model test is similar to sediment concentration field stimulation, but also be avoided that hole, gaza is blocked.
As shown in Figure 1 to Figure 3, output pipe 13 includes being connected to clear water reserviors 12 upstream feed pipe 131 with the upstream being connected to sandbox 11 for sand tube 132, add sand tube 14 to include being arranged at the upstream of upstream, model river course 2 and add sand tube 14, upstream adds sand tube 14 and is arranged on the end of the pipeline formed after upstream feed pipe 131 and upstream are collected for sand tube 132, the electromagnetic flowmeter 153 for detecting flow is further respectively had on sand tube 132 at upstream feed pipe 131 and upstream, clear water reserviors 12 connect upstream feed pipe 131 place and sandbox 11 connects upstream and is equipped with flow control structure 152 for sand tube 132 place.Upstream adds sand tube 14 for the upstream gaza for model river course 2, set up separately and can gather the flow of current and silt at upstream feed pipe 131 and upstream respectively for two electromagnetic flowmeters 153 on sand tube 132, and the data of collection are transferred in termination 15, calculate the reference data for sand amount as termination 15.
Adding river course upstream end residing for sand tube 141 in upstream, be provided with in-line turbidimeter 151, this in-line turbidimeter 151 is for gathering the silt content of flow path direction current, and the gaza's data adding sand tube 141 as upstream calculate reference.
Output pipe 13 also includes the downstream water supply pipe 133 and the downstream confession sand tube 134 that are connected to clear water reserviors 12 and sandbox 11, add sand tube 14 to include being arranged at the downstream at model river mouth place and add sand tube 14, downstream adds sand tube 14 and is arranged on the end that the pipeline of formation is collected in downstream water supply pipe 133 and downstream for sand tube 134, downstream water supply pipe 133 and downstream are respectively equipped with electromagnetic flowmeter 153 on sand tube 134, and clear water reserviors 12 connect downstream water supply pipe 133 place and sandbox 11 connects downstream and is also respectively provided with flow control structure 152 for sand tube 134 place.Downstream water supply pipe 133 and downstream can add sand tube 142 for downstream for sand tube 134 provides silt and water, it is relatively independent for sand tube 132 with upstream feed pipe 131 and upstream, make upstream add sand tube 141 and downstream adds sand tube 142 and can independently control gaza's amount, meet gaza's demand of experiment.
River course downstream part residing for sand tube 142 is added in downstream, it is provided with in-line turbidimeter 151, this in-line turbidimeter 151 is for the silt content at model river mouth 21 place in collection model river course 2, namely flow into the actual silt content in simulation sea area 22, add sand tube 141 as upstream and downstream adds gaza's data of sand tube 142 and calculates reference.
According to above-mentioned structure and work process, the data that termination 15 receives include the respective water supply flow data respectively from upstream feed pipe 131 and downstream water supply pipe 133, sand drift amount data are confessed for sand tube 132 and downstream for each of sand tube 134 respectively from upstream, the silt content of model river course 2 upstream end and the silt content at model river mouth place, termination 15 is according to default software, data, in conjunction with above-mentioned data, the data being actually needed gaza can be calculated, and control upstream respectively by these data and add sand tube 141 and downstream adds gaza's amount of sand tube 142, to improve the outstanding husky model test similarity to actual sediment concentration field stimulation, and measuring for sand of model river course 2 upstream and downstream can be regulated in test in real time, get rid of external interference.
Flow control structure 152 in the present embodiment includes one-way water pump 1521 and frequency-variable controller 1522, and frequency-variable controller 1522 can change frequency thus controlling the power of one-way water pump 1521 under the control of termination 15, thus changing correlative flow.
As it is shown in figure 1, the sandbox 11 in the present embodiment includes steeping husky pond 111, mixes Sha Chi 112, pond, gaza 113 and point husky pond 114.The husky pond 111 of bubble, mix Sha Chi 112, pond, gaza 113 and a point husky pond 114 and pass sequentially through unidirectional sewage pump transhipment silt, namely silt flows out from the husky pond 111 of bubble, successively and unidirectional flowing through mix Sha Chi 112 and pond, gaza 113, finally flow into a point husky pond 114, Fen Shachi 114 is provided with output pipe 13, as the final place exporting silt.
Silt flow process within sandbox 11 is:
(1) model sasnd is put in the husky pond 111 of bubble and is soaked, and meets and is pumped to mixing Sha Chi 112 by unidirectional sewage pump after requiring；
(2) agitator is installed mixing Sha Chi 112, silt and water can be stirred and become silt, after sediment concentration reaches requirement, pump to pond, gaza 113 again through unidirectional sewage pump；
(3) silt is pumped to a point husky pond 114 by unidirectional sewage pump in pond, gaza 113, divide and be provided with muddy water overfall 1141 between husky pond 114 and pond, gaza 113, after water level exceedes muddy water overfall 1141, arsenicbearing gold ores is back to pond, gaza 113 from muddy water overfall 1141, to ensure that a point husky pond 114 has constant water level.
Sandbox 11 in the present embodiment, has multiple cell body and cooperates, and last point of husky pond 114 middle water level is constant, and no matter a point husky pond 114 is input silt or outwards exports silt, all will not change self water level, it is provided that stable for husky environment.In order to avoid silt deposition in the process of transhipment, in pond, gaza 113 and point husky pond 114, it also is provided with agitator.
As it is shown in figure 1, the clear water reserviors 12 in the present embodiment include cistern 121 and add pond 122, cistern 121 and add the clean water overflow mouth 1221 being provided with between pond 122 for water backflow, add pond 122 and be provided with output pipe 13.Adding pond 122 principle similar to point husky pond 114, it passes through clean water overflow mouth 1221 by water lev el control, it is provided that stable confession water environment.
These are only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention.
Claims (10)
1. for the sand supply automatically device of tidal estuary sediment physical model, described tidal estuary sediment physical model includes model river course, downstream, described model river course has model river mouth, it is characterized in that, including clear water reserviors, sandbox and termination, described clear water reserviors and described sandbox are equipped with output pipe, described output pipe collects rear end and is provided with for adding sand tube for described model river course gaza, described clear water reserviors and described sandbox are equipped with flow control structure, the described sand tube exit that adds is provided with the in-line turbidimeter for detecting silt content, described in-line turbidimeter and described flow control structure control by described termination.
2. the sand supply automatically device for tidal estuary sediment physical model as claimed in claim 1, it is characterized in that, described output pipe includes the upstream feed pipe being connected to described clear water reserviors with the upstream being connected to described sandbox for sand tube, the described sand tube that adds includes being arranged at the upstream of upstream, described model river course and adds sand tube, described upstream feed pipe and described upstream are collected the line end of composition for sand tube and are provided with described upstream and add sand tube, described upstream feed pipe and described upstream for the electromagnetic flowmeter being respectively provided with detection flow on sand tube.
3. the sand supply automatically device for tidal estuary sediment physical model as claimed in claim 2, it is characterised in that add river course upstream end residing for sand tube in described upstream and be provided with described in-line turbidimeter.
4. the sand supply automatically device for tidal estuary sediment physical model as claimed in claim 2, it is characterized in that, described output pipe includes the downstream water supply pipe and the downstream confession sand tube that are connected to described clear water reserviors and described sandbox, the described sand tube that adds includes being arranged at the downstream at described model river mouth place and adds sand tube, described downstream water supply pipe and described downstream are provided with described downstream for the line end that sand tube collects and add sand tube, described downstream water supply pipe and described downstream and be respectively equipped with described electromagnetic flowmeter on sand tube.
5. the sand supply automatically device for tidal estuary sediment physical model as claimed in claim 4, it is characterised in that add river course downstream part residing for sand tube in described downstream and be provided with described in-line turbidimeter.
6. the sand supply automatically device for tidal estuary sediment physical model as described in any one of claim 1 to 5, it is characterized in that, described sandbox include for the husky pond of bubble that mixed model is husky, for provide preset concentration silt mix Sha Chi, for keeping in the pond, gaza of silt and there is the Fen Shachi of constant water level, the described husky pond of bubble, described in mix Sha Chi, pond, described gaza and described point of husky pond and pass sequentially through unidirectional sewage pump transhipment silt, described point of husky pond is provided with described output pipe.
7. the sand supply automatically device for tidal estuary sediment physical model as claimed in claim 6, it is characterised in that described in mix Sha Chi, pond, described gaza and described point of husky pond and be equipped with agitator.
8. the sand supply automatically device for tidal estuary sediment physical model as claimed in claim 6, it is characterised in that be provided with the muddy water overfall for the arsenicbearing gold ores that refluxes between described point of husky pond and pond, described gaza.
9. the sand supply automatically device for tidal estuary sediment physical model as described in any one of claim 1 to 5, it is characterized in that, described clear water reserviors include cistern and there is constant water level add pond, described cistern and described adding, are provided with clean water overflow mouth between pond, described in add pond and be provided with described output pipe.
10. the sand supply automatically device for tidal estuary sediment physical model as described in any one of claim 1 to 5, it is characterised in that described flow control structure includes one-way water pump and for controlling the frequency-variable controller of described one-way water pump.
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| CN201610256343.3A CN105756008B (en) | 2016-04-22 | 2016-04-22 | Sand supply automatically device for tidal estuary sediment physical model |
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| CN201610256343.3A CN105756008B (en) | 2016-04-22 | 2016-04-22 | Sand supply automatically device for tidal estuary sediment physical model |
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| CN105756008A true CN105756008A (en) | 2016-07-13 |
| CN105756008B CN105756008B (en) | 2018-03-27 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106996091A (en) * | 2017-05-17 | 2017-08-01 | 水利部交通运输部国家能源局南京水利科学研究院 | Removable sand supply automatically device and method |
| CN109267533A (en) * | 2018-11-08 | 2019-01-25 | 浙江省水利河口研究院 | The gaza's device being layered under water for estuary coast silt physical model |
| CN112177060A (en) * | 2020-08-27 | 2021-01-05 | 同济大学 | Centrifugal model test device and test method for simulating scouring of wall toe of reinforced retaining wall |
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| CN112177060A (en) * | 2020-08-27 | 2021-01-05 | 同济大学 | Centrifugal model test device and test method for simulating scouring of wall toe of reinforced retaining wall |
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