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US20100143039A1 - Sand disturbance system and method thereof - Google Patents

Sand disturbance system and method thereof Download PDF

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Publication number
US20100143039A1
US20100143039A1 US12/351,672 US35167209A US2010143039A1 US 20100143039 A1 US20100143039 A1 US 20100143039A1 US 35167209 A US35167209 A US 35167209A US 2010143039 A1 US2010143039 A1 US 2010143039A1
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United States
Prior art keywords
floating body
wheel disc
water current
baffle
flexible chain
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Abandoned
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US12/351,672
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English (en)
Inventor
Xingyu ZHENG
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Individual
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Individual
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
    • E02B3/023—Removing sediments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F1/00—General working methods with dredgers or soil-shifting machines
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins

Definitions

  • the present invention relates to Water and Sediment Regulation technology, particularly to a sand disturbance system and a sand disturbance method executed by the system.
  • the Yellow River carries 16 hundred millions tons of sand into downstream, and 4 hundred millions tons of sand deposits on the downstream riverbed such that the downstream riverbed uplifts in an average rate of 10 cm/year.
  • the downstream riverbed is average 4 to 6 meters higher than river adjacent land, which forms the world famous “aboveground river”.
  • the object of the present invention is to provide a sand disturbance system and method thereof to increase the effect of sand disturbance and completely control inundation.
  • the present invention provides a sand disturbing system which includes a sand disturbance boat, wherein the sand disturbance boat includes:
  • At least one baffle disposed on the floating body, and inserted into the water current when disturbing sand, wherein a spacing is present between an edge of the baffle and a riverbed, and the baffle is adapted to disturbing sediment on the riverbed when the water current flows through the spacing.
  • the present invention also provides a sand disturbing method, including:
  • the baffle driving the floating body to run downstream with a push of the water current, wherein sediment is disturbed and flowed away when the water current flows through the spacing.
  • the present invention adopts baffle obstruct water current, makes the water current rapidly through a spacing between baffle edge and a riverbed to disturb and flows away sediment.
  • This technical means overcomes the technical problem in prior art that when the high pressure muzzle of sand disturbance boat exerts a high pressure impact on sediment deposition surface, the impacted area is smaller with respect to the Yellow River vast sediment deposition reach, and sand disturbance effect is not obvious.
  • the sand regulation can be performed in areas of Long River, which completely control the sediment deposition problem.
  • the present invention can enhance disturb sand effect and completely control inundation, and the implementing method is simple and easy to be promoted in the Yellow River and a variety of river water areas.
  • FIG. 1 is a side view of sand disturbance principle by water current of the sand disturbance system according to the present invention
  • FIG. 2 is a riverway section view of sand disturbance principle by water current of the sand disturbance system according to the present invention
  • FIG. 3 is a structure schematic view of Embodiment 1 of the sand disturbance system according to the present invention.
  • FIG. 4 is a structure schematic view of Embodiment 2 of the sand disturbance system according to the present invention.
  • FIG. 5 is a structure schematic view illustrating the baffle moving away from the water surface in Embodiment 2 of the sand disturbance system according to the present invention
  • FIG. 6 is a structure schematic view of Embodiment 3 of the sand disturbance system according to the present invention.
  • FIG. 7 is a structure schematic view of Embodiment 4 of the sand disturbance system according to the present invention.
  • FIG. 8 is a structure schematic view of Embodiment 5 of the sand disturbance system according to the present invention.
  • FIG. 9 is a structure schematic view of Embodiment 6 of the sand disturbance system according to the present invention.
  • FIG. 10 is a flowchart of the embodiment of the sand disturbance method according to the present invention.
  • a sand disturbance system mainly includes a sand disturbance boat, wherein the sand disturbance boat includes at least one floating body 1 , and at least one baffle 2 disposed on the floating body 1 .
  • the baffle 2 drives the floating body 1 to run with a push of water current.
  • the water current flows rapidly through a spacing between the edge of baffle 2 and the bottom of riverbed with the obstruct of baffle 2 , and disturbs sediment of the riverbed.
  • FIG. 2 shows a riverway section view of sand disturbance principle by water current of the sand disturbance system according to the present invention.
  • FIG. 3 it is a structure schematic view of Embodiment 1 of the sand disturbance system according to the present invention.
  • the system can be disposed in the Yellow River, and disturb sand by use of the directional water current in the river.
  • the system includes a wheel disc 3 and a sand disturbance boat consisted of a floating body 1 and a baffle 2 .
  • the sand disturbance boat is connected to the wheel disc 3 by a flexible chain 4 , wherein the wheel disc 3 is fixedly disposed relatively to the water current, it can be fixedly insert into the river bottom, and also can be fixedly on dam or bank.
  • the sand disturbance boat includes at least one floating body 1 floating on the water current, wherein the common hull may serve as the floating body 1 ; at least one baffle 2 disposed on the floating body 1 , wherein when disturbing sand, the baffle 2 is inserted into the water current, and an angel is formed between the direction of water current and the direction of the baffle 2 .
  • the angel is lager than 0 degree and smaller than 90 degree.
  • the baffle 2 is used to drive the floating body 1 to run downstream with the push of the water current and control the velocity of the floating body 1 smaller than the velocity of the water current.
  • a spacing is present between the edge of the baffle 2 and the riverbed, when the floating body 1 runs, the water current is pressed to flow rapidly through the spacing so as to disturb up the sediment of riverbed, which serves as effect of sand disturbance.
  • the disturbed sediment can be flowed away downstream.
  • the floating body 1 is connected to the wheel disc 3 by using the flexible chain 4 , one end of the flexible chain 4 is fixedly connected to the floating body 1 and the other end of the flexible chain 4 winds around the wheel disc 3 .
  • the flexible chain 4 is dragged to drive the wheel disc 3 to rotate together.
  • the advantage of using the flexible chain 4 and the wheel disc 3 is that the floating body 1 can be controlled and drawn back to the start position by winding the flexible chain 4 after the floating body 1 runs a distance.
  • a baffle is inserted into the water current and the baffle drives a floating body to run together downstream with the push of the water current; the baffle obstructs the water current, such that the water current flows through a spacing between a baffle edge and a riverbed, disturbs and flows away sediment of riverbed; and the sediment of riverbed passed by the floating body is disturbed and flowed away.
  • the floating body drags the flexible chain to be loosened from the wheel disc, then the wheel disc rotates in the loosened direction of the flexible chain.
  • the sand disturbance system obstructs the water current by the baffle immerges in the water current all the time, which increases the kinetic energy of the water current through the spacing between baffle edge and riverbed.
  • the kinetic energy of the water current is used sufficiently to directly disturb and flow away sediment, which completely controls the inundation and enhance the effect of disturbing sand.
  • the system has a simple structure and is prone to form a large-scale disturbing sand project in vast water area, in particular to disposed in the Yellow River, the water current of which carries abundant sediment and is not suit for sailing, therefore the open water area can be used to construct large-scale sand disturbance project which is consisted by sand disturbance system according to the embodiment.
  • the width of baffle or floating body is disposed according to the flux of the Yellow River to disturb the maximum sand, and a plurality of sand disturbance boats are disposed in series from the middle reaches of the Yellow River to the Yellow River estuary.
  • a plurality of sand disturbance boats are disposed in series from the middle reaches of the Yellow River to the Yellow River estuary.
  • the sand disturbance boat of the embodiment can widen the riverway in a short time, increase the riverway's water passing ability, and control the inundation of the Yellow River.
  • the sand disturbance system in the embodiment also includes generator 5 , which is connected to the rotation axis of the wheel disc 3 by transmission 9 , when the wheel disc 3 rotates, the generator 5 is driven for generating power.
  • the above technical solution not only uses the structure of floating body and baffle to realize sand disturbance, but also use the movement of floating body running downstream to drive the wheel disc to rotate, and the wheel disc's rotation transfers to the generator for generating power.
  • Embodiment 2 of the Sand Disturbance System Embodiment 2 of the Sand Disturbance System.
  • FIG. 4 it is a structure schematic view of Embodiment 2 of the sand disturbance system in accordance with the present invention.
  • the present embodiment is based on the above Embodiment 1 and is further provided with a first power device 6 .
  • the first power device 6 which may be an electromotor is connected with the wheel disc 3 and is adapted to drive the wheel disc 3 to rotate when the sand disturbance stops.
  • the rotation of the wheel disc 3 may wind the flexible chain 4 so as to drive the floating body 1 to run in the upstream direction and re-wind the flexible chain 4 onto the wheel disc 3 .
  • the technical solution of the present embodiment enables the floating body not only to run downstream for sand disturbance but also to run upstream back to the starting position under the power device's driving so as to restart the next sand disturbance.
  • the baffle 2 is preferably moved out of the water current so as to reduce resistance, as shown in FIG. 5 .
  • one end of the baffle 2 may be pivotally connected with the floating body 1 and a pivot spindle 7 is disposed horizontally.
  • the pivot spindle 7 may be connected with a second power device 8 .
  • the second power device 8 drives the pivot spindle 7 to rotate so as to change the spacing between the baffle 2 and the riverbed.
  • the second power device 8 drives the pivot spindle 7 to rotate so as to drive the baffle 2 to rotate until the baffle 2 is upwarping and moves away from the water current. As shown in FIG. 5 , the baffle 2 is rotated to become over the water surface.
  • the baffle pivotally connected to the floating body may conveniently changes positions.
  • the baffle When the floating body is running downstream for sand disturbance, the baffle is inserted into water; and when it is running upstream and the sand disturbance stops, the baffle is moved away from water to reduce resistance.
  • the amount of the thrust borne by the baffle may be adjusted by adjusting the angle of the baffle with water so as to accommodate different practical needs.
  • FIG. 6 it is a structure schematic view of Embodiment 3 of the sand disturbance system in accordance with the present invention.
  • the present embodiment is based on the above Embodiment 2 and is further provided with a plurality of sand disturbance boats in series along water current.
  • the sand disturbance boats are connected with each other end to end by the flexible chain 4 .
  • the technical solution of the present embodiment enables a plurality of floating bodies not only disturb sand at the same time when running downstream, but also run upstream back to the starting position under one power device's driving.
  • the second power device 8 drives the pivot spindle 7 of each floating body 1 to rotate so as to drive each baffle 2 to rotate, and to keep a spacing between the baffle 2 and the riverbed.
  • the second power device 8 drives the pivot spindle 7 of each floating body 1 to rotate so as to drive the baffle 2 to rotate and until the baffle 2 is upwarping and moves away from the water current.
  • a plurality of sand disturbance boats are disposed in series along water current, a plurality of floating bodies 1 running simultaneously enhances the disturbance to the sediment of riverbed, and one power device drives wheel discs to rotate with winding the first flexible chain to drive all the floating bodies run upstream.
  • the generator 5 can also be disposed to be connected to the rotation axis of wheel disc 3 via transmission 9 , and when a plurality of sand disturbance boats in this embodiment run downstream, the push force of the water current to baffle 2 increases, such that when the wheel disc 3 is driven to rotate, the power of generating power of the generator 5 increases.
  • FIG. 7 it is a structure schematic view of Embodiment 4 of the sand disturbance system in accordance with the present invention.
  • there are one wheel disc 3 and two floating bodies that is, a first floating body 11 and a second floating body 12 .
  • a first flexible chain 41 and a second flexible chain 42 connected to the two floating bodies respectively connect to the wheel disc 3 via the pulley block.
  • the first flexible chain 41 of the first floating body 11 is connected via the first pulley 101 to the wheel disc 3 disposed on the bank
  • the second flexible chain 42 of the second floating body 12 is connected to the wheel disc 3 disposed on the bank via a second pulley 102 , a third pulley 103 and a forth pulley 104 .
  • the running route is serial between the first floating body 11 and the second floating body 12 , and they are not overlapped in water current direction.
  • Two flexible chains wind around the wheel disc independently.
  • one of the flexible chains is in winding state, and the other flexible chain is in loose state;
  • One of floating bodies runs downstream with the push of water current, obstructs water current to disturb sand, and drives the wheel disc to rotate;
  • the other floating body runs upstream under the drive of the rotated wheel disc, and the two floating bodies run downstream and upstream alternately.
  • the generator 5 is connected to the rotation axis of wheel disc 3 via a transmission 9 and a commutator 10 when the two floating bodies 1 run downstream and upstream alternately, the commutator 10 can change the rotating direction of the rotation axis of the wheel disc 3 , such that the generator 5 generates power continuously.
  • the two floating bodies disturb sand alternately and the running scopes which are not overlapped can avoid the interlacement and jam between the floating body and flexible chain.
  • FIG. 8 it is a structure schematic view of Embodiment 5 of the sand disturbance system according to the present invention.
  • there are two wheel discs that is, a first wheel disc 31 and a second wheel disc 32 , around which one flexible chain winds respectively, that is a first flexible chain 41 and a second flexible chain 42 .
  • One of the flexible chains is in a winding state and the other flexible chain is in a loose state;
  • There is one generator 5 wherein a first transmission 9 connected to the rotation axis of the first wheel disc 31 and a second transmission 9 connected to the rotation axis of the second wheel disc 32 are respectively connected to the generator 5 by a first engaging and disengaging gear 105 and a second engaging and disengaging gear 106 , and the first engaging and disengaging gear 105 and the second engaging and disengaging gear 106 can be clutch or ratchet wheel;
  • the other end of the rotation axis of the first wheel disc 31 is connected to a forth power device 107 and the other end of the rotation axis of the second wheel disc 32 is connected to a fifth power device 108 ;
  • One end of each flexible chain is respectively connected to one floating body, that is, the first floating body 11 and the second floating body 12 , wherein one floating body runs downstream with the push of water current and drives the wheel disc to rotate, such that the generator 5 is driven to rotate for
  • the combination of two group wheel discs, flexible chains and floating bodies are further used, wherein the two floating bodies disturb sand alternately, the two wheel discs drive one generator for generating power, and an engaging and disengaging gear control the connecting and disconnecting of the wheel disc with the generator.
  • the two floating bodies generate power downstream and return back upstream alternately, wherein, the power device drives the floating body to be back upstream. Therefore, the generator can generate power continuously with the drive of the two wheel discs.
  • the returning velocity of the floating body upstream is preferably higher than the velocity of the other floating body running downstream, which can ensure that the returned floating body has the time interval for receiving the baffle to avoid the abrupt power change of generating power and ensure that the generator can generate power continuously.
  • FIG. 9 it is a structure schematic view of Embodiment 6 of the sand disturbance system according to the present invention.
  • a third power device 109 such as an engine is disposed on the floating body 1 , which is used to drive the floating body 1 to run when disturbing sand such that the floating body 1 has a velocity difference with water current.
  • the velocity difference is a preset value, which is a positive velocity difference or a negative velocity difference.
  • the third power device 109 drives the floating body 1 to run downstream;
  • the third power device 109 drives the floating body 1 to run upstream in the embodiment, the third power device 109 is adjusted on power to realize the velocity difference up to the preset value between the floating body 1 and the water current, that is, when driving the floating body 1 to run upstream, the power of the third power device 109 is more higher than that when running downstream.
  • the third power device of the sand disturbance system in the embodiment drives the floating body to form a preset relative velocity difference with the water current, which increases correspondingly the kinetic energy of the water currents through the spacing between the baffle edge and the riverbed and makes the floating body disturb sand neatly.
  • FIG. 10 it is a flowchart view of Embodiment of the sand disturbance method according to the present invention.
  • the method can be specifically executed by the embodiments of the sand disturbance system according to the present invention, which includes the following steps.
  • Step 100 The baffle disposed on the floating body is inserted into the water current, a spacing is present between the baffle edge and the riverbed, and an angel is formed between the baffle and the flowing direction of the water;
  • Step 200 The baffle drives the floating body to run downstream with the push of water current, and the water current is obstructed by the baffle and flows through the spacing to flow away sediment.
  • the floating body is connected to one end of a flexible chain; the other end of the flexible chain is wound around a wheel disc fixedly disposed relatively to the water current. Therefore, when the baffle drives the floating body to run downstream with the push of water current, the step 300 can further be executed.
  • the step 300 is that the floating body drags the wound flexible chain to be loosened and the dragged flexible chain drives the wheel disc to rotate.
  • the connected flexible chain can receive the floating body back conveniently to the start position when the sand disturbance stops.
  • the sand disturbance method of the embodiment can be specifically executed by the embodiments of the sand disturbance system according to the present invention.
  • the baffle inserted into the water current drives the floating body to run downstream together with the push of the water current, the water current is obstructed and flows through the spacing between the baffle edge and the riverbed to disturb and flow away the sediment of the riverbed. With the running of the floating body, the sediment on the area the floating body passed all can be disturbed and flowed away.
  • the obstructing of baffle to the water current increases the kinetic energy of water currents through the spacing between the baffle edge and the riverbed such that the sediment on the bottom and two sides of the riverbed is disturbed and flowed away, which increases the sand disturbance effect.
  • the horizontal movement of the floating body is transformed to the rotation of the wheel disc via the flexible chain for generating power. Therefore, the rotation axis of the wheel disc can be connected to a generator, when the flexible chain drives the wheel disc to rotate, the rotating wheel disc drives the generator for generating power.
  • the following steps can be executed after the floating body runs until the flexible chain is loosened from the wheel disc, and the floating body is driven to return upstream.
  • Step 400 A first power device is started to drive the floating body to run upstream.
  • Step 500 During the floating body running upstream, the wheel disc rotates to wind up the flexible chain.
  • the above first power device may be fixedly disposed relatively to the water current and be connected to the wheel disc to drive the floating body to run upstream through driving the wheel disc to rotate.
  • the baffle may be moved away from the water current, for example, when one end of the baffle is pivotally connected to the floating body, as described in above embodiment of the sand disturbance system, the horizontal pivot spindle between one end of the baffle and the floating body is be driven until the pivotally connected baffle rotates to warp over the water surface or float on the surface so as to be moved away from the water for resistance reduction.
  • the sand disturbance method in accordance with the present invention may be further provided with one wheel disc, two flexible chains and two floating bodies.
  • one of the two floating bodies runs downstream and drags the flexible chain to drive the wheel disc to rotate, the rotation axis of the wheel disc drive the generator for generating power.
  • the rotation of the wheel disc winds around the other flexible chain to drive the other floating body to run upstream.
  • the two floating bodies run downstream and upstream alternately, and the commutator enables to change the rotating direction of the wheel disc, which can insure that the generator can generate power continuously.
  • the sand disturbance method in accordance with the present invention may be further provided with two groups of wheel discs, flexible chains and floating bodies which are connected together, one group includes a first wheel disc, a first flexible chain and a first floating body, which operate as the above described method embodiment, and the other group includes a second wheel disc, a second flexible chain and a second floating body, which also operate as the above described method embodiment.
  • the work flow of the two system's cooperative work is specifically as follows: when the first floating body runs downstream and the first flexible chain is dragged to drive the first wheel disc to rotate, the rotation axis of the rotating first wheel disc is engaged with a generator via a first clutch and drives the generator to rotate for generating power via a commutator, at the same time, the second wheel disc connected to the second floating body is disconnected to the generator, and the power device drives the second disc to rotate.
  • the rotating second wheel disc winds the second flexible chain connected to the second wheel disc, and the second flexible chain drags the floating body connected to second flexible chain to run upstream in water current.
  • the two floating bodies run downstream and upstream alternately and the clutches respectively connected to the two floating bodies engage with the generator when the connected floating body runs downstream and disconnected from the generator when the connected floating body runs downstream.
  • the velocity of the power device driving one floating body to run upstream may be equal to, preferably higher than that of the other floating body running downstream, which ensures that the returned floating body has a time interval to receive the baffle and avoids the abrupt change of power to ensure the continuous generating power of the generator.
  • a third power device such as an engine may be disposed.
  • the third power device drives the floating body to run so as to form a velocity difference between the floating body and the water current.
  • the velocity difference is a preset value which may be a positive one or a negative one.
  • the preset velocity difference is a positive one
  • the third power device drives the floating body to run downstream and when the preset velocity difference is a negative one, the third power device drives the floating body to run upstream.
  • the relative velocity difference between the floating body and the water current can be up to the preset value through adjusting the power of the third power device, that is, when the floating body is driven to run upstream, the power of the third power device is much higher than that of the floating body runs downstream.
  • the sand disturbance method of the embodiment forms a preset relative velocity difference between the floating body and the water current through the power device's driving, which increases the kinetic energy of the water currents through the spacing between the baffle edge and the riverbed and makes the floating body perform sand disturbance neatly.
  • the sand disturbance method of the present invention may specifically executed by any one embodiment of the sand disturbance system in accordance with the present invention. However, it is not only limited to this.
  • the sand disturbance system adapting the baffle obstruct water current and make the water current through the spacing between the baffle edge and the riverbed to current away the sediment of riverbed may also be used to execute the sand disturbance method of the present invention.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Hydraulic Turbines (AREA)
US12/351,672 2008-12-05 2009-01-09 Sand disturbance system and method thereof Abandoned US20100143039A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200810239060.3 2008-12-05
CNA2008102390603A CN101429773A (zh) 2008-12-05 2008-12-05 扰沙系统及方法

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US (1) US20100143039A1 (zh)
JP (1) JP3149885U (zh)
CN (1) CN101429773A (zh)
AU (1) AU2009100210A4 (zh)
DE (1) DE202009005774U1 (zh)
GB (1) GB2456922A (zh)
WO (1) WO2010063151A1 (zh)

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CN101429773A (zh) 2009-05-13
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