CN105803999A - River model test system - Google Patents
River model test system Download PDFInfo
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- CN105803999A CN105803999A CN201610295576.4A CN201610295576A CN105803999A CN 105803999 A CN105803999 A CN 105803999A CN 201610295576 A CN201610295576 A CN 201610295576A CN 105803999 A CN105803999 A CN 105803999A
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- gaza
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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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- General Engineering & Computer Science (AREA)
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Abstract
The invention relates to a river model test system. The river model test system comprises a test room, a master controller, a water pressure simulation device and a water flow simulation device. The water pressure simulation device comprises an air pump, and the air pump is connected with the test room through an air pipe. The water flow simulation device comprises a water pump, and the water pump is connected with the test room through a water pipe. The test room is a closed box room, a riverway model is laid in the test room and horizontally arranged in the left-right direction, and a bed load sand adding device is arranged on the upper surface of the left side of the riverway model. The bed load sand adding device comprises a sand adding container, a gravel mixing mechanism, a supporting frame and an automatic sand conveying mechanism. The sand adding container, the gravel mixing mechanism and the automatic sand conveying mechanism are sequentially arranged on the supporting frame from top to bottom. The river model test system is high in automation degree, high in adaptability for complex test conditions and capable of simulating different river section pressure river conditions.
Description
Technical field
The invention belongs to waterpower hydroelectric project river model test technical field, be specifically related to a kind of river model test system.
Background technology
River model experiment is to shorten river into model by the principle of similitude, each a kind of means changed in varied situations about factor (current, landform) are studied in model, owing under its natural environment and after construction engineering, the process of river course deformation is complex, many river-bed deformations and dredging waterway problem, often it is difficult to direct analysis and research and the method calculated solves, utilize model experiment to be then likely to solving of direct convenience；Existing river model experimental system, maximum haveing a problem in that can not simulate hydraulic pressure in river, and in river model is tested, the silt discharge process by bed load sediment converts by model similar scale is needed to join in model, and bed load gaza device needs in advance the gravel of different-grain diameter size to be mixed according to a certain percentage, before experiment, preparation is loaded down with trivial details, and manually-operated demand is big.
Summary of the invention
The present invention is to solve weak point of the prior art, it is provided that a kind of automaticity is high, sophisticated testing condition is adaptable, can simulate the river model test system of river conditions.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that river model test system, including test chamber, master controller, simulated water pressure device and simulated flow device；Simulated water pressure device includes air pump, and air pump is connected with test chamber by trachea；Simulated flow device includes water pump, and water pump is connected with test chamber by water pipe；Test chamber is an airtight chamber, is equipped with river model in test chamber, and river model is horizontally disposed with in left-right direction, and on the left of river model, upper surface is provided with bed load gaza device；Bed load gaza device includes gaza's container, mixing gravel mechanism, bracing frame and automatic sediment transport mechanism；Gaza's container, mixing gravel mechanism and automatic sediment transport mechanism are successively set on bracing frame from top to bottom；
Gaza's container is rectangular structure, gaza's internal tank hollow and gaza's container upper end are uncovered, gaza's container bottom is provided with base plate, in gaza's container, spacing side by side is fixed with some baffle plates, the inner chamber of gaza's container is separated into chamber, some gazas by baffle plate, being provided with some row's discharge openings on base plate side by side, often row's discharge opening is all correspondingly arranged with one of them chamber, gaza, is equipped with discharging control valve bottom each discharge opening；
Mixing gravel mechanism includes blending bunker, and the upper end of blending bunker is uncovered, and the horizontal cross-section of blending bunker is gradually reduced downwards, and the bottom of blending bunker offers sand outlet；Some groups of mixing agitators it are provided with in blending bunker；
Automatic sediment transport mechanism includes motor, installation frame, driving roller, driven voller, driving runner and driven runner, roller and driven voller is driven to be rotatably connected on side by side on installation frame, runner is driven to be fixed on the one end driving roller, driven runner is fixed on one end of driven voller and arranges with driving runner homonymy, drive and be provided with conveyer belt between roller and driven voller, drive and be provided with belt between runner and driven runner, motor is fixed on installation frame, and the main shaft of motor is in transmission connection with driving runner；
Master controller is connected with motor, discharging control valve, mixing agitator, water pump and air pump respectively through controlling circuit.
As a preferred embodiment of the present invention, bracing frame includes the rectangular frame fixed by four horizontal corner steels, and four angles of rectangular frame are fixed with a upright angle steel all vertically upward.
Another kind of preferred version as the present invention, discharging control valve includes folding motor, plugging plate and guide rail, guide rail is provided with two, article two, guide rail is fixed on the bottom of base plate and lays respectively at the opposite sides of discharge opening, plugging plate is slidably connected on two guide rails, plugging plate is used for blocking discharge opening, nut it is provided with bottom plugging plate, folding motor is fixed on bottom base plate, the main shaft of folding motor is connected to leading screw by shaft coupling, leading screw is arranged with guide rail parallel, and one end of leading screw is located in nut and is connected with nut thread；Master controller is connected with folding motor by controlling circuit.
Another preferred version as the present invention, mixing agitator includes drive motor, installing plate and rotating shaft, drive motor is fixed on blending bunker sidewall, and the major axis horizontal of drive motor is arranged, and the main shaft of drive motor is fixed with master bevel gear, installing plate is horizontally fixed on blending bunker sidewall, rotating shaft is vertically arranged, and axis of rotation connects on a mounting board, and rotating shaft is provided with helical blade, the lower end of rotating shaft is fixedly connected with from bevel gear after installing plate, and master bevel gear is meshed with from bevel gear；Master controller is connected with drive motor by controlling circuit.
Adopt technique scheme, the method have the advantages that
(1) present invention can automatization's mixing match bed load sediment, with traditional manual proportioning of ratio, automaticity is high, saving time and labour cost, concrete proportioning is determined according to the needs of specific simulation test by testing crew, as selected different gravel a, the gravel b of particle diameter and gravel c, and the ratio of gravel a, gravel b and gravel c is 3:1:2；By gravel a, gravel b and gravel c is respectively charged at chamber, gaza A, chamber, gaza B, in the C of chamber, gaza, then pass through wherein three discharging control valves that master controller is opened in the A of chamber, gaza respectively, open one of them discharging control valve in the B of chamber, gaza, open one of them discharging control valve in the C of chamber, gaza, the process specifically opening discharging control valve is: start folding motor, folding driven by motor leading screw is walked around dynamic at nut, under the effect of the revolving force of leading screw, leading screw promotes nut, and then promote plugging plate to move along guide rail, thus the discharge opening blocked by plugging plate is opened, the gravel of gaza's intracavity falls from discharge opening；The ratio of gravel a, gravel b and gravel c is controlled by opening the number of the discharging control valve of three gaza's intracavity；
(2) present invention can by gravel Homogeneous phase mixing different for particle diameter, concrete mixed method is: start drive motor by master controller, drive motor drives the master bevel gear on main shaft to rotate, master bevel gear and driven wheel of differential engaged transmission, thus driving axis of rotation, in rotating shaft under the stirring of helical blade, gravel a, gravel b and gravel c mix homogeneously, mixed gravel drops down onto conveyer belt from sand outlet；
(3) automatically sediment transport mechanism can gaza accurately, realize the sand supply automatically of each pilot time slot different gradation combination, its sediment transport is crossed and is called: start motor, motor drives and drives runner to rotate, runner is driven to be rotated by the driven runner of belt drive, thus driving the conveyer belt between roller and driven voller, dropping down onto amount on a moving belt by controlling the rotating speed control gravel of motor, gravel is brought to and falls into river model by conveyer belt；
(4) present invention controls all devices by master controller, easy to operate, make experiment automatized height, decrease the complexity of test；
(5) this device the whole series are placed in airtight test chamber, then the hydraulic pressure of air pressure simulation different rivers section, and more to approach and the situation in reality river, and the research in river is had a great impact by hydraulic pressure, this device maximizing simulation river model.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the mounting structure schematic diagram of discharging control valve；
Fig. 3 is the structural representation of mixing agitator；
Fig. 4 is the structural representation of automatic sediment transport mechanism.
Detailed description of the invention
As Figure 1-4, the river model test system of the present invention, including test chamber 1, master controller, simulated water pressure device and simulated flow device；Simulated water pressure device includes air pump 2, and air pump 2 is connected with test chamber 1 by trachea；Simulated flow device includes water pump 3；Test chamber 1 is an airtight chamber, river model 6 it is equipped with in test chamber 1, water pump 3 is connected with test chamber 1 by water pipe and is supply water in river model 6 upstream, river model 6 is horizontally disposed with in left-right direction, and on the left of river model 6, upper surface is provided with bed load gaza device；Bed load gaza device includes gaza's container 7, mixing gravel mechanism 4, bracing frame 8 and automatic sediment transport mechanism 5；Gaza's container 7, mixing gravel mechanism 4 and automatic sediment transport mechanism 5 are successively set on bracing frame 8 from top to bottom；Master controller can be PLC or integrated circuit or single-chip microcomputer；
Gaza's container 7 is rectangular structure, gaza's container 7 inner hollow and gaza's container 7 upper end are uncovered, base plate 9 it is provided with bottom gaza's container 7, in gaza's container 7, spacing side by side is fixed with some baffle plates 10, the inner chamber of gaza's container 7 is separated into chamber, some gazas 11 by baffle plate 10, being provided with some row's discharge openings 12 on base plate 9 side by side, often row's discharge opening 12 is all correspondingly arranged with one of them chamber, gaza 11, is equipped with discharging control valve bottom each discharge opening 12；Each discharge opening 12 has at least 3 discharge openings 12.
Mixing gravel mechanism 4 includes blending bunker 13, and the upper end of blending bunker 13 is uncovered, and described each row's discharge opening 12 is respectively positioned on the surface that blending bunker 13 upper end is uncovered；The horizontal cross-section of blending bunker 13 is gradually reduced downwards, and the bottom of blending bunker 13 offers sand outlet 14；Some groups of mixing agitators it are provided with in blending bunker 13；
Automatic sediment transport mechanism 5 includes motor 15, installation frame 16, drive roller 17, driven voller 18, drive runner 19 and driven runner 20, roller 17 and driven voller 18 is driven to be rotatably connected on installation frame 16 side by side, runner 19 is driven to be fixed on the one end driving roller 17, driven runner 20 is fixed on one end of driven voller 18 and arranges with driving runner 19 homonymy, drive and be provided with conveyer belt 21 between roller 17 and driven voller 18, drive and be provided with belt 22 between runner 19 and driven runner 20, motor 15 is fixed on installation frame 16, the main shaft of motor 15 is in transmission connection with driving runner 19；Master controller is connected with motor 15, discharging control valve, mixing agitator, water pump 3 and air pump 2 respectively through controlling circuit.
Bracing frame 8 includes the rectangular frame fixed by four horizontal corner steels, and four angles of rectangular frame are fixed with a upright angle steel all vertically upward.
Discharging control valve includes folding motor 23, plugging plate 24 and guide rail 25, guide rail 25 is provided with two, article two, guide rail 25 is fixed on the bottom of base plate 9 and lays respectively at the opposite sides of discharge opening 12, plugging plate 24 is slidably connected on two guide rails 25, plugging plate 24 is used for blocking discharge opening 12, nut 26 it is provided with bottom plugging plate 24, folding motor 23 is fixed on bottom base plate 9, the main shaft of folding motor 23 is connected to leading screw 28 by shaft coupling 27, leading screw 28 and guide rail 25 be arranged in parallel, and one end of leading screw 28 is located in nut 26 and threadeds with nut 26；Master controller is connected with folding motor 23 by controlling circuit.
Mixing agitator includes drive motor 29, installing plate 30 and rotating shaft 31, drive motor 29 is fixed on blending bunker 13 sidewall, the major axis horizontal of drive motor 29 is arranged, the main shaft of drive motor 29 is fixed with master bevel gear 32, installing plate 30 is horizontally fixed on blending bunker 13 sidewall, rotating shaft 31 is vertically arranged, rotating shaft 31 is rotatably connected on installing plate 30, rotating shaft 31 is provided with helical blade 33, the lower end of rotating shaft 31 is fixedly connected with from bevel gear 34 after installing plate 30, and master bevel gear 32 is meshed with from bevel gear 34；Master controller is connected with drive motor 29 by controlling circuit.
The present embodiment is selected different gravel a, the gravel b of particle diameter and gravel c, and the ratio of gravel a, gravel b and gravel c is 3:1:2；nullFirst first bed material uniform spreading is located on river model 6 by this device on pretreatment，Then by gravel a、Gravel b and gravel c is respectively charged at chamber, gaza A、Chamber, gaza B、In the C of chamber, gaza，Then pass through master controller control air pump 2 in test chamber 1, input gases at high pressure，To simulate the pressure of different sections in river，Then pass through wherein three discharging control valves that master controller is opened in the A of chamber, gaza respectively，Open one of them discharging control valve in the B of chamber, gaza，Open one of them discharging control valve in the C of chamber, gaza，The process specifically opening discharging control valve is: start folding motor 23，Folding motor 23 drives leading screw 28 to walk around dynamic at nut 26，Under the effect of the revolving force of leading screw 28，Leading screw 28 promotes nut 26，And then promote plugging plate 24 to move along guide rail 25，Thus the discharge opening 12 blocked by plugging plate 24 is opened，The gravel of gaza's intracavity falls from discharge opening 12；The ratio of gravel a, gravel b and gravel c is controlled by opening the number of the discharging control valve of three gaza's intracavity；nullGravel a、Gravel b and gravel c falls in blending bunker 13，Then drive motor 29 starts，Drive motor 29 drives the master bevel gear 32 on main shaft to rotate，Master bevel gear 32 and driven wheel of differential engaged transmission，Thus driving rotating shaft 31 to rotate，In rotating shaft 31 under the stirring of helical blade 33，Gravel a、Gravel b and gravel c mix homogeneously，Mixed gravel drops down onto conveyer belt 21 from sand outlet 14，Then motor 15 and water pump 3 start simultaneously，Motor 15 drives and drives runner 19 to rotate，Runner 19 is driven to drive driven runner 20 to rotate by belt 22，Thus driving the conveyer belt 21 between roller 17 and driven voller 18 to move，The amount on conveyer belt 21 is dropped down onto by controlling the rotating speed control gravel of motor 15，Gravel is brought to and falls into river model 6 by conveyer belt 21，Current suction is transmitted below bag by water pump 3 simultaneously，Water impact gravel，Change over realizing bed load sediment，River model test is completed under specific hydraulic pressure.
The shape of the present invention, material, structure etc. are not done any pro forma restriction by the present embodiment; every any simple modification, equivalent variations and modification above example made according to the technical spirit of the present invention, belongs to the protection domain of technical solution of the present invention.
Claims (4)
1. river model test system, it is characterised in that: include test chamber, master controller, simulated water pressure device and simulated flow device；Simulated water pressure device includes air pump, and air pump is connected with test chamber by trachea；Simulated flow device includes water pump, and water pump is connected with test chamber by water pipe；Test chamber is an airtight chamber, is equipped with river model in test chamber, and river model is horizontally disposed with in left-right direction, and on the left of river model, upper surface is provided with bed load gaza device；Bed load gaza device includes gaza's container, mixing gravel mechanism, bracing frame and automatic sediment transport mechanism；Gaza's container, mixing gravel mechanism and automatic sediment transport mechanism are successively set on bracing frame from top to bottom；
Gaza's container is rectangular structure, gaza's internal tank hollow and gaza's container upper end are uncovered, gaza's container bottom is provided with base plate, in gaza's container, spacing side by side is fixed with some baffle plates, the inner chamber of gaza's container is separated into chamber, some gazas by baffle plate, being provided with some row's discharge openings on base plate side by side, often row's discharge opening is all correspondingly arranged with one of them chamber, gaza, is equipped with discharging control valve bottom each discharge opening；
Mixing gravel mechanism includes blending bunker, and the upper end of blending bunker is uncovered, and the horizontal cross-section of blending bunker is gradually reduced downwards, and the bottom of blending bunker offers sand outlet；Some groups of mixing agitators it are provided with in blending bunker；
Automatic sediment transport mechanism includes motor, installation frame, driving roller, driven voller, driving runner and driven runner, roller and driven voller is driven to be rotatably connected on side by side on installation frame, runner is driven to be fixed on the one end driving roller, driven runner is fixed on one end of driven voller and arranges with driving runner homonymy, drive and be provided with conveyer belt between roller and driven voller, drive and be provided with belt between runner and driven runner, motor is fixed on installation frame, and the main shaft of motor is in transmission connection with driving runner；
Master controller is connected with motor, discharging control valve, mixing agitator, water pump and air pump respectively through controlling circuit.
2. river model test system according to claim 1, it is characterised in that: bracing frame includes the rectangular frame fixed by four horizontal corner steels, and four angles of rectangular frame are fixed with a upright angle steel all vertically upward.
3. river model test system according to claim 2, it is characterized in that: discharging control valve includes folding motor, plugging plate and guide rail, guide rail is provided with two, article two, guide rail is fixed on the bottom of base plate and lays respectively at the opposite sides of discharge opening, plugging plate is slidably connected on two guide rails, plugging plate is used for blocking discharge opening, nut it is provided with bottom plugging plate, folding motor is fixed on bottom base plate, the main shaft of folding motor is connected to leading screw by shaft coupling, leading screw is arranged with guide rail parallel, and one end of leading screw is located in nut and is connected with nut thread；Master controller is connected with folding motor by controlling circuit.
4. river model test system according to claim 3, it is characterized in that: mixing agitator includes drive motor, installing plate and rotating shaft, drive motor is fixed on blending bunker sidewall, the major axis horizontal of drive motor is arranged, the main shaft of drive motor is fixed with master bevel gear, installing plate is horizontally fixed on blending bunker sidewall, rotating shaft is vertically arranged, axis of rotation connects on a mounting board, rotating shaft is provided with helical blade, the lower end of rotating shaft is fixedly connected with from bevel gear after installing plate, and master bevel gear is meshed with from bevel gear；Master controller is connected with drive motor by controlling circuit.
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| CN201610295576.4A CN105803999B (en) | 2016-05-06 | 2016-05-06 | River model test system |
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| CN201610295576.4A CN105803999B (en) | 2016-05-06 | 2016-05-06 | River model test system |
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| CN105803999B CN105803999B (en) | 2017-09-29 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091797A (en) * | 2017-05-08 | 2017-08-25 | 浙江大学 | Detachable high accuracy continuously takes husky bed load discharge measurement apparatus |
| CN108277774A (en) * | 2018-01-18 | 2018-07-13 | 河海大学 | River model test auto purification type tilts inlet method |
| CN108729405A (en) * | 2018-03-06 | 2018-11-02 | 河海大学 | A kind of river model test method |
| CN112942234A (en) * | 2021-03-23 | 2021-06-11 | 长江水利委员会长江科学院 | A equipment for river course model making |
| CN113125107A (en) * | 2021-04-26 | 2021-07-16 | 海博泰科技(青岛)有限公司 | Device and method for measuring bed load sand transport rate |
| CN114333537A (en) * | 2022-01-04 | 2022-04-12 | 王大宇 | River network and river power simulation device and simulation method |
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| CN203960801U (en) * | 2014-07-08 | 2014-11-26 | 浙江省水利河口研究院 | A kind of for testing the experimental facilities of sediment transport capacity under lock |
| CN105382188A (en) * | 2015-11-29 | 2016-03-09 | 无锡市鑫茂锻造有限公司 | Casting shakeout hopper based on positive-negative-rotation stirring |
| CN205636630U (en) * | 2016-05-06 | 2016-10-12 | 包永刚 | River model test system |
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| CN201753444U (en) * | 2010-07-19 | 2011-03-02 | 武汉长江仪器自动化研究所 | Self-control belt conveying scraping-throwing type sand feeding machine |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091797A (en) * | 2017-05-08 | 2017-08-25 | 浙江大学 | Detachable high accuracy continuously takes husky bed load discharge measurement apparatus |
| CN107091797B (en) * | 2017-05-08 | 2023-08-18 | 浙江大学 | Detachable high-precision continuous sand-taking bed load sand conveying rate measuring device |
| CN108277774A (en) * | 2018-01-18 | 2018-07-13 | 河海大学 | River model test auto purification type tilts inlet method |
| CN108729405A (en) * | 2018-03-06 | 2018-11-02 | 河海大学 | A kind of river model test method |
| CN112942234A (en) * | 2021-03-23 | 2021-06-11 | 长江水利委员会长江科学院 | A equipment for river course model making |
| CN113125107A (en) * | 2021-04-26 | 2021-07-16 | 海博泰科技(青岛)有限公司 | Device and method for measuring bed load sand transport rate |
| CN113125107B (en) * | 2021-04-26 | 2022-06-03 | 海博泰科技(青岛)有限公司 | Device and method for measuring bed load sand transport rate |
| CN114333537A (en) * | 2022-01-04 | 2022-04-12 | 王大宇 | River network and river power simulation device and simulation method |
| CN114333537B (en) * | 2022-01-04 | 2023-07-28 | 王大宇 | River power simulation device and simulation method for river network |
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| CN105803999B (en) | 2017-09-29 |
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