CN204389144U - Sediment moving incipient velocity proving installation - Google Patents
Sediment moving incipient velocity proving installation Download PDFInfo
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- CN204389144U CN204389144U CN201520095673.XU CN201520095673U CN204389144U CN 204389144 U CN204389144 U CN 204389144U CN 201520095673 U CN201520095673 U CN 201520095673U CN 204389144 U CN204389144 U CN 204389144U
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Abstract
The utility model relates to a kind of sediment moving incipient velocity proving installation, comprise tank, storage reservoir, water pump, upper pool, triangular-notch weir, experiment husky sample tiling box, camera, computer and water storehouse, downstream, described tank is obliquely installed, connect bottom higher one end and store reservoir, water storehouse, downstream is connected bottom lower one end, store reservoir built with water pump, water pump is output in upper pool, and upper pool is communicated with tank by the triangular-notch weir in exit; Described experiment husky sample tiling box is arranged on tank bottom surface, tank side with test husky sample position corresponding to box of tiling camera be housed, described camera is connected computer with water pump by data line.The utility model can catch in time to the motion video that rises of silt, and therefore precisely can test the initial velocity of silt, whole apparatus structure is simple, not high to requirement for experiment condition, is applicable to some middle-size and small-size laboratories and uses.
Description
Technical field
The utility model belongs to hydraulic engineering field, relates to a kind of sediment moving incipient velocity proving installation.
Background technology
Hydraulic engineering is related to national economy, is related to the economic construction of National agricultural and numerous industry, is very important capital construction, engineering construction, therefore should pay much attention to.Party and government of China very pay close attention to the construction of hydraulic engineering.And particularly rivers and creeks harnessing project and oceanographic engineering etc. all relate to Sedimentation Problems in hydraulic engineering, the motion study particular importance of silt, silt moves in what manner, to roll or with water movement also or fall to becoming silted up the behavior expression of body being one by one all silt mass motion and developing such as motionless in bottom at bottom, therefore the starting rule of research silt has very large theory and practice value, for certain basis and precondition are laid in the differentiation research inquiring into river further.
Domestic and international water conservancy researcher is generally by the initial velocity of two kinds of Study of way silts, and one is field observation in river, and one carries out tank observation experiment in laboratory.Field observation is because the severe and real complicacy of condition, and the situation residing for silt and circumstances are very complicated, thus the research of laboratory sink observation experiment is main flow.Sediment incipient motion tank observation experiment is studied, and key is to manufacture as much as possible a relatively simply single streamflow regime, and as uniform flow, observe the movement present situation being laid on the silt of bottom of gullet, when judging that flow rate of water flow is much, silt can just start.This flow rate of water flow just can think the initial velocity of silt.Because the individual instances of silt is very complicated, the starting of group's sand has randomness again, and current stream condition is very complicated, thus the test of the initial velocity of silt is very difficult.
Nowadays along with the progress of science and technology, equipment little by little improves, and the improvement that advanced equipment can use sediment moving incipient velocity testing experiment comes up.Therefore be necessary that design invents can comparatively easy, practical, efficiently sediment moving incipient velocity proving installation and method.
Summary of the invention
The purpose of this utility model is to provide a kind of sediment moving incipient velocity proving installation, solves the initial velocity test difficulty of silt, the problem that precision is inadequate.
The utility model is achieved through the following technical solutions: a kind of sediment moving incipient velocity proving installation, comprise tank, storage reservoir, water pump, upper pool, triangular-notch weir, experiment husky sample tiling box, camera, computer and water storehouse, downstream, described tank is obliquely installed, connect bottom higher one end and store reservoir, water storehouse, downstream is connected bottom lower one end, store reservoir built with water pump, water pump is output in upper pool, and upper pool is communicated with tank by the triangular-notch weir in exit; Described experiment husky sample tiling box is arranged on tank bottom surface, tank side with test husky sample position corresponding to box of tiling camera be housed, described camera is connected computer with water pump by data line.
Further, also comprise energy dissipation tank, energy dissipation tank is positioned at the endpiece of triangular-notch weir.
Further, described energy dissipation tank is built with sponge.
Further, energy-dissipation net is equipped with in the exit of described energy dissipation tank.
Further, described bottom of gullet is also equipped with back up pad, between the higher one end of tank and back up pad, screw rod is housed, and screw rod is equipped with and becomes slope variable valve.
Further, have aperture bottom described experiment husky sample tiling box, be connected with sand supply automatically device.
Further, described sand supply automatically device is connected with computer by data line.
Further, also culvert is communicated with between described water storehouse, downstream and storage reservoir.
Further, described water bottom of the reservior, downstream portion, lower than culvert, forms pond, the heavy collection husky end.
Adopt the good effect of technique scheme: the utility model can catch in time to the motion video that rises of silt, therefore precisely can test the initial velocity of silt, whole apparatus structure is simple, not high to requirement for experiment condition, is applicable to some middle-size and small-size laboratories and uses.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is partial 3 d schematic diagram of the present utility model.
In figure, 1 tank, 2 store reservoir, 3 water pumps, 4 upper pools, 5 triangular-notch weirs, 6 experiment husky sample tiling box, 7 cameras, 8 computers, 9 water storehouses, downstream, 10 energy dissipation tanks, 11 energy-dissipation nets, 12 back up pads, 13 screw rods, 14 become slope variable valve, 15 sand supply automatically devices, 16 culvert, 17 ponds, the heavy collection husky end.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described further, but should not be construed as restriction of the present utility model:
embodiment 1
Fig. 1 is structural representation of the present utility model, Fig. 2 is partial 3 d schematic diagram of the present utility model, as shown in the figure, a kind of sediment moving incipient velocity proving installation, comprise tank 1, store reservoir 2, water pump 3, upper pool 4, triangular-notch weir 5, test husky sample tiling box 6, camera 7, computer 8 and water storehouse, downstream 9, described tank 1 is obliquely installed, the tank gradient required by can setting according to testing requirements, connect bottom the higher one end of tank and store reservoir 2, water storehouse, downstream 9 is connected bottom lower one end, store reservoir 2 built with water pump 3, water pump 3 is output in upper pool 4, upper pool 4 is communicated with tank 1 by the triangular-notch weir 5 in exit.Store reservoir to regulate according to the needs of research and save enough appropriate water, and can water temperature be regulated, such as by suitable method as put into ice cube, or be provided with electric heater and can improve temperature of water etc. by heating water.The effect of water pump is extracted out from storage reservoir by current, enters upper pool, diffused out by triangular-notch weir, form milder current.Described experiment husky sample tiling box 6 is arranged on tank 1 bottom surface, camera 7 is equipped with in tank 2 side and the husky sample of experiment position corresponding to box 6 of tiling, described camera 7 is connected computer 8 with water pump 3 by data line, camera can be used to the motion video catching silt, omnidistance shooting, gather picture and data, and all information is stored in computer so that for preserving and process.This video camera requires that resolution is very high, can buy comparatively high-grade camera by market.Tank stage casing must be tested the sand motion state in husky sample tiling box and whole process, make a video recording and record absolutely clear, with the initial velocity helping researcher accurately to judge silt.And water pump can be monitored by Computerized intelligent completely, to realize the water flow and the time providing current etc. wanted, ensure accurate experiment condition.
In order to form milder current, also comprise energy dissipation tank 10, energy dissipation tank 10 is positioned at the endpiece of triangular-notch weir 5.Described energy dissipation tank 10 is built with sponge.Further, energy-dissipation net 11 is equipped with in the exit of described energy dissipation tank 10, and further energy dissipating makes current become even.
In order to the gradient of tank can be regulated at any time, bottom described tank 1, back up pad 12 is also housed, between the higher one end of tank 1 and back up pad 12, screw rod 13 is housed, screw rod 13 is equipped with and becomes slope variable valve 14.Changeover valve can stretch screw rod, thus raise the high-end of tank, realize becoming slope, the required tank gradient can be reached according to testing requirements, elevation scale all portrayed by the limit wall of tank, and connects into carefully portraying line the parallel lines being respectively parallel to tank bottom line.When water surface curve in tank and these parallel lines be parallel at the bottom of tank flushes, then show now to achieve uniform flow in tank, the water environment situation of test realizes.
In experimentation, the silt of testing in husky sample tiling box reduces gradually, has aperture, be connected, to supplement husky sample in due course with sand supply automatically device 15 bottom described experiment husky sample tiling box 6.Husky sample is laid in this box, accomplishes to flush with other bottom of gullets, be on same straight line.Described sand supply automatically device 15 is connected with computer 8 by data line, realizes automatically controlling.
In order to utilize water circulation, also be communicated with culvert 16 between described water storehouse, downstream 9 and storage reservoir 2, can be made by a pvc pipe, when tank is under it becomes the control of slope variable valve, realize uniform flow and flow to lower end, and flow into water storehouse, downstream.Flow into the storage reservoir below upper end by the culvert of below so again, store the upper pool that rise to upper end of water by water pump of reservoir, etc.Circulate and so forth, water resource is also reused saving water resource effectively, economize energy, energy-conserving and environment-protective.
Lower than culvert 16 bottom described water storehouse, downstream 9, form pond, the heavy collection husky end 17, starting is tested with the silt of water movement to water storehouse, downstream by tank stage casing to receive, to ensure to be flowed in the water stored in reservoir by culvert not having silt, with guarantee whole testing experiment can not because of the defective of water quality influence research accuracy and precision.
embodiment 2
Use a method of testing for sediment moving incipient velocity proving installation, the method comprises the following steps:
(1) water stored in reservoir 2 is retracted to upper pool 4 by water pump 3, diffuses out, form mild current and enter tank 1 after entering energy dissipation tank 10 energy dissipating through triangular-notch weir 5, and current are accomplished slowly evenly as far as possible, ensure experiment condition;
(2) silt of testing in husky sample tiling box 6 starts under flow action, and image is passed to computer 8 after being caught on camera 7 seizure and processed;
(3), after current flow into water storehouse, downstream 9 with silt, the heavy collection of silt is in pond, the heavy collection husky end 17, and current are flowed back to by culvert 16 and store reservoir 2, so circulate.
The advantage of the method and device:
(1) actuality: be all generally the initial velocity being obtained silt by field observation or flume test research both at home and abroad.By artificially observing, observing, there is very large subjectivity, randomness and uncertainty, the starting as silt is realizing instantaneously, and the naked eyes of people cannot must stare at it from start to finish, just miss unless you give your whole attention to it, then delayed observation judgement can provide certain misdata.And this method is taken by omnidistance high precision, high resolving power and dynamical video camera complete monitoring, and can be preserved and data processing by computer collection, and can accomplish to put upside down, crosscheck etc., thus, can accomplish researcher do not squat with not needing all the period of time there observe and decide record measure, there is very large actuality.Researcher is allowed to free in certain degree, a little more senior and complicated affairs of process.
(2) advanced: the advance of these apparatus and method is robotization, digitizing and complete monitoring, and the information of single test gained can be preserved forever, check and judge and analyze.
(3) accuracy: these apparatus and method are because can by the information processing of computer, in time water pump is given an order, the rotating speed of water pump is made to obtain very accurately controlling, thus can realize very little of very large pump rotary speed at different levels, and pump rotary speed and its water lift amount are linear relationships, not only interrelated because of the flow rate of water flow in flow and tank, thus the at different levels flow rate of water flow of very little flow rate of water flow to larger flow velocity can be realized.And can computer monitor be passed through, a few person is associated, realize full-scale digital, sequencing, the angle of inclination of adjusted in concert tank, to realize uniform flow exactly, and calculate in time, record, preserve flow rate of water flow at that time, again complete monitoring is obtained, information acquisition, data analysis and process to the motion state of silt, motion conditions simultaneously, to obtain precision, accuracy and timelyization.
(4) stability: due to this method and device, to organic glass or the unorganic glass that can adopt unusual light at the bottom of flume wall and tank, thus the frictional resistance of tank limit wall and bottom can be less even very little, thus can uniform flow be realized comparatively easily, so as test carry out smoothly.Again because there is the monitoring of computer, can be controlled by coding, be realized the experimental study of each operating mode at different levels, thus reproducible, good stability.
(5) applicability, practicality are wide: the method is comparatively directly perceived and because of the prosperity of science and technology, the development of computer hardware and software, and digital photography technology, developing by leaps and bounds of camera technique, the advance of equipment and instrument, these equipment are easy to buy, and are combined, assembled cost apparatus, thus the testing experiment research better realizing sediment moving incipient velocity.Applicability, practicality are wide, referring on the other hand can environment, condition and economic situation residing for researcher, the advance of equipment, scale, tank, pond, the size of reservoir size, the power of water pump and intelligentized height can be suited measures to local conditions, and selected and realize according to the actual conditions of oneself.
(6) economy: this method and device, has accomplished energy-conserving and environment-protective, and water circulation uses.Scale can be very little, the electricity expense used can be very little, again because flow dynamic can not be very large needed for the initial velocity of silt, the depth of water can be very little, thus whole device can miniaturization, save material and the expense such as making and equipment installation widely, thus greatly reduce research cost, good economy performance.
Claims (9)
1. a sediment moving incipient velocity proving installation, it is characterized in that: comprise tank (1), store reservoir (2), water pump (3), upper pool (4), triangular-notch weir (5), test husky sample tiling box (6), camera (7), computer (8) and water storehouse, downstream (9), described tank (1) is obliquely installed, connect bottom higher one end and store reservoir (2), water storehouse, downstream (9) is connected bottom lower one end, store reservoir (2) built with water pump (3), water pump (3) is output in upper pool (4), upper pool (4) is communicated with tank (1) by the triangular-notch weir (5) in exit, husky sample tiling box (6) of described experiment is arranged on tank (1) bottom surface, tank (2) side with test husky sample position corresponding to box (6) of tiling camera (7) be housed, described camera (7) is connected computer (8) with water pump (3) by data line.
2. sediment moving incipient velocity proving installation according to claim 1, is characterized in that: also comprise energy dissipation tank (10), and energy dissipation tank (10) is positioned at the endpiece of triangular-notch weir (5).
3. sediment moving incipient velocity proving installation according to claim 2, is characterized in that: described energy dissipation tank (10) is built with sponge.
4. sediment moving incipient velocity proving installation according to claim 2, is characterized in that: energy-dissipation net (11) is equipped with in the exit of described energy dissipation tank (10).
5. sediment moving incipient velocity proving installation according to claim 1, it is characterized in that: back up pad (12) is also equipped with in described tank (1) bottom, screw rod (13) is housed between tank (1) higher one end and back up pad (12), screw rod (13) is equipped with and becomes slope variable valve (14).
6. sediment moving incipient velocity proving installation according to claim 1, is characterized in that: husky sample tiling box (6) bottom of described experiment has aperture, is connected with sand supply automatically device (15).
7. sediment moving incipient velocity proving installation according to claim 6, is characterized in that: described sand supply automatically device (15) is connected with computer (8) by data line.
8. sediment moving incipient velocity proving installation according to claim 1, is characterized in that: be also communicated with culvert (16) between described water storehouse, downstream (9) and storage reservoir (2).
9. sediment moving incipient velocity proving installation according to claim 8, is characterized in that: described bottom, water storehouse, downstream (9), lower than culvert (16), forms husky pond, the end (17) of heavy collection.
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| CN201520095673.XU CN204389144U (en) | 2015-02-10 | 2015-02-10 | Sediment moving incipient velocity proving installation |
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| CN201520095673.XU CN204389144U (en) | 2015-02-10 | 2015-02-10 | Sediment moving incipient velocity proving installation |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105679167A (en) * | 2016-01-29 | 2016-06-15 | 中国科学院、水利部成都山地灾害与环境研究所 | Novel debris flow provenance dam break experiment water tank device and realization method thereof |
| CN107338758A (en) * | 2017-08-16 | 2017-11-10 | 河海大学 | The experimental system and its analogy method of water-sediment movement under the complexity riverbed of network of waterways confluence |
| CN108680341A (en) * | 2018-06-29 | 2018-10-19 | 长江大学 | A kind of experiment upstream river water sand effect reduction apparatus |
| CN109686199A (en) * | 2019-02-26 | 2019-04-26 | 中国矿业大学(北京) | A kind of Simple water sink experimental provision |
| CN113634017A (en) * | 2021-10-18 | 2021-11-12 | 中国水产科学研究院渔业工程研究所 | Sand setting circulating device for wave-flow water tank test tailings |
-
2015
- 2015-02-10 CN CN201520095673.XU patent/CN204389144U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105679167A (en) * | 2016-01-29 | 2016-06-15 | 中国科学院、水利部成都山地灾害与环境研究所 | Novel debris flow provenance dam break experiment water tank device and realization method thereof |
| CN107338758A (en) * | 2017-08-16 | 2017-11-10 | 河海大学 | The experimental system and its analogy method of water-sediment movement under the complexity riverbed of network of waterways confluence |
| CN108680341A (en) * | 2018-06-29 | 2018-10-19 | 长江大学 | A kind of experiment upstream river water sand effect reduction apparatus |
| CN109686199A (en) * | 2019-02-26 | 2019-04-26 | 中国矿业大学(北京) | A kind of Simple water sink experimental provision |
| CN113634017A (en) * | 2021-10-18 | 2021-11-12 | 中国水产科学研究院渔业工程研究所 | Sand setting circulating device for wave-flow water tank test tailings |
| US11674280B2 (en) | 2021-10-18 | 2023-06-13 | Fishery Engineering Research Institute, Chinese Academy Of Fishery Sciences | Sand setting circulating device for wave-current tank test tailings |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20170210 |