CN116858492B - Reciprocating flow sand conveying self-adaptive moving bed test water tank - Google Patents
Reciprocating flow sand conveying self-adaptive moving bed test water tank Download PDFInfo
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- CN116858492B CN116858492B CN202311132716.2A CN202311132716A CN116858492B CN 116858492 B CN116858492 B CN 116858492B CN 202311132716 A CN202311132716 A CN 202311132716A CN 116858492 B CN116858492 B CN 116858492B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 239000004576 sand Substances 0.000 title claims abstract description 33
- 238000012360 testing method Methods 0.000 title claims abstract description 33
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 25
- 238000005096 rolling process Methods 0.000 claims description 48
- 230000007246 mechanism Effects 0.000 claims description 37
- 244000007853 Sarothamnus scoparius Species 0.000 claims description 31
- 238000004140 cleaning Methods 0.000 claims description 29
- 238000005520 cutting process Methods 0.000 claims description 26
- 239000011159 matrix material Substances 0.000 claims description 16
- 230000007704 transition Effects 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 3
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 239000013049 sediment Substances 0.000 abstract description 85
- 238000013461 design Methods 0.000 description 21
- 239000000758 substrate Substances 0.000 description 17
- 230000033001 locomotion Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 9
- 239000012530 fluid Substances 0.000 description 8
- 238000009825 accumulation Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 230000003044 adaptive effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 210000005056 cell body Anatomy 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000003825 pressing Methods 0.000 description 1
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- 230000000087 stabilizing effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a reciprocating flow sand conveying self-adaptive moving bed test water tank, which relates to the technical field of water conservancy model tests and comprises a circulating tank body and a bidirectional pump, wherein the circulating tank body comprises at least two straight line sections, the adjacent straight line sections are connected through curve sections, the curve sections are provided with the bidirectional pump, the curve sections are provided with a plurality of parallel rectifying baffles, and the front end and the rear end of the bidirectional pump are respectively provided with a horn-shaped shrinkage tube. The invention aims to provide a reciprocating flow sand conveying self-adaptive moving bed test water tank which is stable, stable in sediment transportation and not easy to be stained.
Description
Technical Field
The invention belongs to the technical field of water conservancy model tests, and particularly relates to a reciprocating flow sand conveying self-adaptive moving bed test water tank.
Background
The existing water tank for the automatic balance circulating sand conveying moving bed model test adopts a water and sand separation circulating mode, so that water and sand separation is complex, and the automatic balance sand conveying without reciprocating flow can only be realized under a unidirectional flow state.
The prior art is named as an invention patent of a test water tank design and an experiment method for measuring a non-constant sediment transport rate of a bed load, and the publication number of the invention patent is CN115510769A. The design method is completed by establishing quantitative optimization of a water tank for test, a sand collecting pit and a sand conveying rate measuring mechanism, and a cooperative service for non-constant sand conveying measurement of bed load is formed by the quantitative optimization of the water tank for test, the sand collecting pit and the sand conveying rate measuring mechanism. According to the design and experimental method of the test water tank for measuring the non-constant sand transmission rate of the bed load, through comprehensive consideration of the dimension and the longitudinal and transverse direction on the gradient, the measurement of the non-constant sand transmission rate is accurate, and more accurate test data are provided for subsequent researches. But the invention can not realize sediment propulsion and balance sediment transportation.
The prior art is named as an invention patent of a field sediment movement test device which does not interfere with the bed surface state, and the invention has the publication number LU502650. The invention discloses a field sediment movement test device without disturbing the state of a bed surface, which comprises a working box, wherein the bottom end of the working box is provided with a stabilizing assembly; a supporting rod is fixedly connected to the middle part of the top of the working box; the support rod is provided with a support cover, a first stress mechanism and a testing mechanism from top to bottom in sequence; the supporting cover is arranged corresponding to the first stress mechanism; the top end of the working box is provided with a second stress mechanism; the side wall of the working box is correspondingly arranged with the second stress mechanism, and the testing mechanism is positioned between the first stress mechanism and the second stress mechanism. A motor is fixedly connected in the working box; the output shaft of the motor extends out of the top of the working box. The invention can not realize balanced sand transportation, and can only perform experiments according to the existing sediment state.
Disclosure of Invention
The invention aims to provide a reciprocating flow sand conveying self-adaptive moving bed test water tank which is stable, stable in sediment transportation and not easy to be stained.
The technical scheme adopted by the invention for achieving the purpose is as follows:
the reciprocating flow sand conveying self-adaptive moving bed test water tank comprises a circulating tank body and a bidirectional pump, wherein the circulating tank body comprises at least two straight line sections, adjacent straight line sections are connected through curve sections, and the curve sections are provided with the bidirectional pump;
the curve section is equipped with a plurality of parallel arrangement's rectification baffle, and the bi-directional pump front and back end all is equipped with the shrink tube of tubaeform.
The shrinkage tube has shrinkage end and enlarged end, and the enlarged end of shrinkage tube links up with experimental highest water level, and the shrinkage end height of shrinkage tube is not higher than experimental minimum water level, and the shrinkage end of shrinkage tube links to each other with the bi-directional pump.
Through the whole design to the current sediment storage self-adaptation moving bed test basin, the straightway is as experimental section, is equipped with the bi-directional pump on being connected and the curve section through the curve section between the adjacent straightway, and the curve section is as drive and circulation linkage section, is equipped with the drive that the bi-directional pump is used for realizing the water of circulation cell body, sand motion on the curve section. The bidirectional pump is controlled to forward, reverse and rotate at the speed by the frequency converter, so that the water body and sediment in the circulating tank body are driven to move at a given flow speed or a given flow speed process, the sediment flushed out by the straight line section and the water body enter the bidirectional pump together, and under the driving action of the bidirectional pump, the water body and the sediment continuously move downwards through the bidirectional pump and enter the next straight line section, so that the sediment is automatically balanced and conveyed to sand. Wherein, the bidirectional pump adopts an axial flow pump.
The flow-straightening baffle plates are arranged in parallel on the curve section, more precisely, the flow-straightening baffle plates are arc plates which are arranged concentrically with the curve section and have different radiuses, the flow-straightening baffle plates are beneficial to the water body and sediment of the direct-current section to uniformly enter the two-way pump, and the flow-straightening baffle plates can also lead the sediment of the outflow water body of the curve section to uniformly enter the straight-line section in the pumping process of the two-way pump, so that the experimental precision is improved; in addition, through the setting of rectification baffle, can avoid accumulation such as silt to lead to the fact silt to block in bend section one side to lead to the fact silt caking and unable through the condition emergence of water, can also be to the guide of water, silt and realize that water, silt reduce at the in-process turbulent flow of flowing through bend section, prevent that water, silt velocity of flow from causing the water to strike bend section wall to lead to water, silt to overflow the condition emergence of circulating tank body.
The front end and the rear end of the bi-directional pump are respectively provided with the horn-shaped shrink tube, and meanwhile, the height of the shrink end and the height of the amplifying end of the shrink tube are controlled, so that the bi-directional pump is in a submerged state, the water body and the air mixing when the sediment enters the bi-directional pump are prevented from being damaged by the bi-directional pump, the water body pressure is unstable and noise is generated when the sediment is discharged, and the bi-directional pump can be guaranteed to continuously and stably flow in and out by the aid of the shrink tube.
According to one embodiment of the invention, the enlarged end side of the shrinkage tube is connected with a transition section, and the other side of the transition section is connected with the curve section in a fitting way.
Through the design, the transition sections are arranged in front of and behind the bidirectional pump, and because the expansion end of the shrinkage tube and the curve section are not in fit arrangement under normal conditions, partial water and sediment can flow through the side of the bidirectional pump, and unbalance of the water and sediment can be caused in front of and behind the bidirectional pump; the changeover portion is used for realizing that the bend section is connected with the expansion end of shrink tube mutually in the laminating, realizes that water and silt from the straightway can flow into bi-directional pump completely, can control the flow direction of water and silt, can change the flow path of former water and silt, and then prevent that silt from adhering to stay and deposit at the changeover portion, and then realize the balanced volume of water and silt around, realize silt automatic balance sand transportation.
According to the embodiment of the invention, the reciprocating flow sand conveying self-adaptive moving bed test water tank further comprises a push-broom assembly, a sliding rail is arranged at the upper part of the straight line section, the push-broom assembly is matched with the sliding rail, and the push-broom assembly is used for realizing the movement of the sediment in the relative straight line section.
Through the design, the push-broom assembly is used for realizing the movement of sediment in the relative straight line segment, and the straight line segment corresponding to the push-broom assembly can be cleaned; meanwhile, experiments can be carried out on straight-line segments on one side only, the condition that sediment rapidly moves to a connected turning position is guaranteed by adjacent straight-line segments, and the push-broom assembly is used for pushing broom work corresponding to the straight-line segments.
According to one embodiment of the invention, the push broom assembly comprises a driving mechanism and a push broom base body, wherein the driving mechanism is matched with the sliding rail, a lifting rod is arranged in a penetrating manner of the driving mechanism, the bottom end of the lifting rod is connected with the push broom base body, and the lifting rod is perpendicular to the plane of the sliding rail;
the push-broom base body and the two opposite sides of the side wall of the straight line segment are provided with auxiliary wheels, one side of the push-broom base body along the advancing direction of the straight line segment is provided with a rolling assembly, and the push-broom base body is provided with a plurality of cleaning assemblies.
Through the design to pushing away the subassembly, actuating mechanism and slide rail cooperation set up, and actuating mechanism can follow the slide rail direction and remove promptly, and actuating mechanism passes through the lifter with pushing away the base member and is connected, and actuating mechanism can realize pushing away and sweep the base member and remove along straightway direction. One of the lifting rods can realize the connection state of the driving mechanism and the push-broom component, and the other one can ensure that when the push-broom component is in the fluctuation condition in the uneven sediment advancing process, the push-broom substrate moves along with the fluctuation of the sediment through the lifting rod. The auxiliary wheel is matched with the rolling assembly to realize that the push-broom substrate moves in parallel along with the fluctuation of sediment; and a plurality of cleaning components are arranged on the push-broom base body and used for scattering and cleaning sediment.
According to one embodiment of the invention, the rolling assembly comprises a hinge rod, one end of the hinge rod is connected to one side of the push broom base body along the travelling direction of the straight line section, a columnar rolling base body is arranged at the other end of the hinge rod, and the rolling base body is hinged with the hinge rod through a frame body;
the rolling matrix circumferentially surrounds and is equipped with a plurality of slots, and the rolling matrix circumferentially lays the cutting that sets up with the slot one-to-one, and the cutting middle part sets up of bending.
Through the design, the cutting strips which are arranged in one-to-one correspondence with the slots are circumferentially distributed on the rolling substrate and are used for realizing the contact with the sediment, when the cutting strips are in contact with the sediment, the pressure of the contact surface is large, the cutting strips can be inserted into the sediment, and under the driving of the driving mechanism, the push-broom mechanism moves to drive the rolling substrate to rotate, so that the cutting strips break the sediment at the bottom of the straight line segment, sediment accumulation at a certain position is avoided, the balance of sediment conveying can be improved, and excessive sediment accumulation at a certain straight line segment is prevented; the setting of bending in the middle part of cutting can realize that the contact surface of cutting and earth reduces and the stability of rolling the base member improves, improves the stability of cutting simultaneously, and then realizes improving the efficiency that the silt of straightway bottom was broken and reduces rolling the base member probability of damage. The support body is connected with the articulated rod in a hinged manner, and the support body is connected with the rolling base body in a rotating manner, so that when the push-broom mechanism moves to drive the rolling base body to rotate, and sediment at the bottom of the straight line section is uneven, the rolling base body can be in a fitting state with sediment at the bottom of the straight line section in the advancing and rotating process through the design, and the stable forward movement of the rolling base body at the bottom in the running channel is ensured.
According to the embodiment of the invention, the outer side wall of the slot is provided with the flexible sheet in an extending mode, and the middle part of the flexible sheet is bent.
Through the arrangement of the flexible sheet, the contact surface between the flexible sheet and soil can be reduced, the stability of the rolling matrix can be further improved, meanwhile, the stability of the rolling matrix is improved, the efficiency of breaking away sediment at the bottom of the straight line segment is further improved, the damage probability of the rolling matrix is reduced, and the stable forward movement of the rolling assembly at the bottom in the running channel is realized; in addition, the bottom of the flexible sheet can be relatively protected, and the situation that the surface abrasion of the insert and the bottom of the straight section is increased to increase the roughness of the bottom surface and influence the passing speed of water flow and sediment caused by excessive friction contact is avoided.
Furthermore, the bending direction of the flexible sheet and the cutting is the same, and the design can realize that the bottom sediment is not taken up by the flexible sheet and the cutting, so that the condition of water turbidity is prevented.
According to one embodiment of the invention, the cleaning assembly comprises a mounting base station, the mounting base station is arranged at the bottom side of the push-broom base body, a first motor which is arranged in one-to-one correspondence with the mounting base station is arranged at the top side of the push-broom assembly, a rotating shaft is arranged at the output end of the first motor in an extending manner, the end part of the rotating shaft is connected with a rotating base body, and the mounting base station is used for determining the position of the rotating base body relative to the push-broom base body;
the rotary base body is circumferentially provided with at least one ring body, and the ring body is circumferentially extended and provided with a plurality of cleaning strips.
Through above-mentioned design, extend the pivot through first motor and drive the rotation base member rotation, it is provided with the ring body that is not less than one and the ring body encircles the extension and is equipped with a plurality of clean strips to rotate the base member circumference, realize the rotary motion of clean strip through first motor drive promptly, realize clean strip and break up the silt of deposit caking at pivoted in-process, and clean strip is rotatory back, its rotation range covers highly is between straight line section bottom surface to the push away the base member, reducible or reduce silt and pass through clean strip, in order to reduce the multiple frequency of reciprocating of whole push away the mechanism in moving the straight line section, ensure the cleaning effect.
Furthermore, a flow inlet is arranged on one side of the push broom base body close to the rolling assembly, a flow inlet channel is formed by inwards extending the flow inlet, and the other end of the flow inlet channel is formed on the bottom side of the push broom base body.
Through the design, the fluid entering from the inflow port can change the flow direction towards the bottom side of the push broom substrate, namely, the fluid is pushed down to flow, and then the fluid can flow towards the direction of the flow of the cleaning strip, so that the sediment in the fluid is guided to flow downwards and is effectively trapped by the cleaning strip, the collection effect of the sediment is ensured, the bottom of the straight line section is the turbulence of the water flow relatively, the middle upper part is relatively stable, the water body is prevented from sloshing and splashing, the bottom of the straight line section is the sediment flow of the water flow relatively turbulence, which is beneficial to the bottom, and the problems of sediment adhesion and the like are avoided.
Drawings
FIG. 1 is a schematic top view of a trough for a reciprocating flow sand transport adaptive moving bed test in example 1;
FIG. 2 is a schematic cross-sectional view taken at C1-C1 of FIG. 1;
FIG. 3 is a schematic top view of the alternating current sand transport adaptive moving bed test flume of example 2;
FIG. 4 is a schematic cross-sectional view taken at C2-C2 of FIG. 3;
FIG. 5 is a schematic top view of the alternating current sand transport adaptive moving bed test flume of example 3;
FIG. 6 is a schematic perspective view of a push broom substrate;
FIG. 7 is a schematic front view of a push broom substrate;
FIG. 8 is a schematic diagram of a push broom substrate from the right;
FIG. 9 is a schematic perspective view of a rolling substrate;
FIG. 10 is a schematic perspective view of a cleaning assembly;
FIG. 11 is a schematic front view of a cleaning assembly;
FIG. 12 is a schematic view of a cleaning assembly;
fig. 13 is a schematic view of a rotating base assembly.
Reference numerals: the device comprises a circulating tank body 1, a straight line section 11, a curve section 12, a rectifying baffle 13, a sliding rail 14, a two-way pump 2, a shrinkage tube 21, an amplifying end 22, a shrinkage end 23, a transition section 24, a push broom component 3, a push broom substrate 31, a lifting rod 32, an auxiliary wheel 33, a rolling component 4, a hinging rod 41, a rolling substrate 42, a slot 421, a cutting 422, a flexible piece 423, a frame body 43, a cleaning component 5, a mounting base 51, a first motor 52, a rotating shaft 53, a rotating substrate 54, a ring body 55, a cleaning strip 56, a water tank top S10, an experimental highest water surface line S20 and an experimental lowest water surface line S30.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the specific embodiments and the attached drawings:
example 1:
as shown in fig. 1 and 2, the reciprocating flow sand conveying self-adaptive moving bed test water tank comprises a circulating tank body 1 and a bidirectional pump 2, wherein the circulating tank body 1 comprises at least two straight line sections 11, adjacent straight line sections 11 are connected through a curve section 12, and the curve section 12 is provided with the bidirectional pump 2;
the curve section 12 is provided with a plurality of parallel rectifying baffles 13, and the front end and the rear end of the bidirectional pump 2 are respectively provided with a horn-shaped shrink tube 21.
The shrink tube 21 has a shrink end 23 and an enlarged end 22, the enlarged end 22 of the shrink tube 21 is engaged with the test highest water level, the shrink end 23 of the shrink tube 21 is not higher than the test lowest water level, and the shrink end 23 of the shrink tube 21 is connected with the bi-directional pump 2.
Through the whole design to the current sediment storage self-adaptation moving bed test basin, straight-line section 11 is as experimental section, is connected through curve section 12 between the adjacent straight-line section 11 and is equipped with bi-directional pump 2 on the curve section 12, and curve section 12 is as drive and circulation linkage segment, is equipped with bi-directional pump 2 on curve section 12 and is used for realizing the drive of circulating tank body 1's water, sand motion. The bidirectional pump 2 is controlled to rotate forward and backward and rotate at the speed by the frequency converter, so that the water body and the sediment in the circulating tank body 1 are driven to move at a given flow speed or a given flow speed process, the sediment flushed out by the straight line section 11 and the water body enter the bidirectional pump 2 together, and under the driving action of the bidirectional pump 2, the water body and the sediment continuously move downwards through the bidirectional pump 2 and enter the next straight line section, and thus the sediment is reciprocally circulated, and automatic balance sediment conveying is realized. Wherein the bi-directional pump 2 is an axial flow pump.
The curve section 12 is provided with a plurality of parallel rectifying baffle plates 13, more precisely, the plurality of rectifying baffle plates 13 are arc plates which are concentric with the curve section 12 and have different radiuses, the rectifying baffle plates 13 are beneficial to the water body and sediment of the direct current section to uniformly enter the two-way pump 2, and the rectifying baffle plates 13 can also lead sediment of the outflow water body of the curve section 12 to uniformly enter the straight line section 11 in the pumping process of the two-way pump 2, so that the experimental precision is improved; in addition, through the setting of rectification baffle 13, can avoid accumulation such as silt to lead to the fact silt to block in bend section 12 one side to lead to the fact silt caking and unable through the condition emergence of water, can also be to the guide of water, silt and realize that water, silt reduce at the in-process turbulent flow of flowing through bend section 12, prevent that water, silt velocity of flow from causing the water to strike bend section 12 wall to lead to water, silt to overflow the condition emergence of circulation cell body 1.
The front end and the rear end of the bi-directional pump 2 are respectively provided with the horn-shaped shrink tube 21, and meanwhile, the height of the shrink end 23 and the height of the amplifying end 22 of the shrink tube 21 are controlled, so that the bi-directional pump 2 is in a submerged state, the damage to the bi-directional pump 2 caused by air mixing when water and sediment enter the bi-directional pump 2 and the unstable water pressure and noise generation caused by discharging are prevented, and the continuous and stable inflow and outflow of the bi-directional pump 2 can be ensured by the arrangement of the shrink tube 21.
Example 2:
as shown in fig. 3 and 4, the reciprocating flow sand conveying self-adaptive moving bed test water tank according to another embodiment of the present invention is different from example 1 in that a transition section 24 is connected to the side of the enlarged end 22 of the shrinkage tube 21, and the other side of the transition section 24 is connected to the curve section 12 in a fitting manner.
Through the design, the transition sections 24 are arranged at the front and rear of the two-way pump 2, and because the enlarged end 22 of the shrinkage tube 21 and the curve section 12 are not in fit arrangement under normal conditions, partial water and sediment can flow through the side of the two-way pump 2, and unbalance of the water and sediment can be caused at the front and rear of the two-way pump 2; the transition section 24 is used for realizing that the curve section 12 is connected with the amplifying end 22 of the shrink tube 21 in a fitting way, so that water and sediment from the straight line section 11 can completely flow into the bi-directional pump 2, the flow direction of the water and the sediment can be controlled, the flow track of the original water and the sediment can be changed, further, the sediment is prevented from adhering to and staying and depositing in the transition section 24, further, the balance of the amounts of the water and the sediment is realized, and the automatic balance of the sediment and the sediment transportation is realized.
Example 3:
as shown in fig. 5-13, according to another embodiment of the present invention, the adaptive moving bed test water tank for reciprocating flow sand delivery further includes a push-broom assembly 3, a sliding rail 14 is disposed at an upper portion of the straight line segment 11, the push-broom assembly 3 is disposed in cooperation with the sliding rail 14, and the push-broom assembly 3 is used for realizing movement of sediment in the straight line segment 11.
Through the design, the push broom assembly 3 is used for realizing the movement of sediment in the relative straight line segment 11, and the straight line segment 11 corresponding to the push broom assembly 3 can be cleaned; meanwhile, experiments can be carried out on straight-line segments 11 on one side only, the situation that sediment rapidly moves to a connected turning position is guaranteed by adjacent straight-line segments 11, and the push-broom assembly 3 is used for pushing broom work corresponding to the straight-line segments 11.
The push broom assembly 3 comprises a driving mechanism and a push broom base body 31, the driving mechanism is matched with the slide rail 14, a lifting rod 32 is arranged in a penetrating mode of the driving mechanism, the bottom end of the lifting rod 32 is connected with the push broom base body 31, and the lifting rod 32 is perpendicular to the plane of the slide rail;
the push-broom base 31 is provided with auxiliary wheels 33 on two opposite sides of the side wall of the straight line segment 11, one side of the push-broom base 31 along the travelling direction of the straight line segment 11 is provided with a rolling assembly 4, and the push-broom base 31 is provided with a plurality of cleaning assemblies 5.
Through the design to push away and sweep subassembly 3, actuating mechanism and slide rail 14 cooperation setting, actuating mechanism can follow slide rail 14 direction and remove promptly, and actuating mechanism passes through lifter 32 with push away and sweeps base member 31 to be connected, and actuating mechanism can realize pushing away and sweeping base member 31 and follow straightway 11 direction and remove. One of the lifting rods 32 can realize the connection state of the driving mechanism and the push broom assembly 3, and the other one can ensure that when the push broom assembly 3 has fluctuation in the uneven sediment travelling process, the push broom substrate 31 moves along with the fluctuation of the sediment through the lifting rods 32. The auxiliary wheel 33 is matched with the rolling assembly 4 to realize that the push-broom base 31 moves in parallel along with sediment fluctuation; and a plurality of cleaning components 5 are arranged on the push broom substrate 31, and the cleaning components 5 are used for realizing the scattering and cleaning of sediment.
The rolling assembly 4 comprises a hinging rod 41, one end of the hinging rod 41 is connected to one side of the push broom base 31 along the travelling direction of the straight line section 11, a columnar rolling base 42 is arranged at the other end of the hinging rod 41, and the rolling base 42 is hinged with the hinging rod 41 through a frame 43;
the rolling matrix 42 is circumferentially provided with a plurality of slots 421 in a surrounding manner, the rolling matrix 42 is circumferentially provided with cutting 422 which are arranged in one-to-one correspondence with the slots 421, and the middle part of the cutting 422 is bent.
Through the design, the cutting 422 which is arranged in one-to-one correspondence with the slots 421 is circumferentially distributed on the rolling matrix 42 and is used for realizing the contact with the sediment, when the cutting 422 is in contact with the sediment, the pressure of the contact surface is large due to the linear contact, the cutting 422 can be inserted into the sediment, and under the drive of the driving mechanism, the push-broom mechanism moves to drive the rolling matrix 42 to rotate, so that the cutting 422 breaks the sediment at the bottom of the straight line segment 11, sediment deposition agglomeration at a certain position is avoided, the balance of sediment transportation can be improved, and excessive sediment accumulation of a certain straight line segment 11 is prevented; the setting of bending in the middle part of cutting 422 can realize that the contact surface of cutting 422 and earth reduces and the stability of rolling matrix 42 improves, improves the stability of cutting 422 simultaneously, and then realizes improving the efficiency that the silt of straightway 11 bottom broken and reduces rolling matrix 42 damage probability. The frame body 43 is hinged with the hinge rod 41, the frame body 43 is rotationally connected with the rolling base body 42, so that when the push-broom mechanism moves to drive the rolling base body 42 to rotate, and sediment at the bottom of the straight line segment 11 is uneven, the rolling base body 42 can be in a fitting state with sediment at the bottom of the straight line segment 11 in the running rotation process through the design, and stable forward movement of the bottom in a running channel is ensured.
The outer side wall of the slot 421 is provided with a flexible piece 423 in an extending mode, and the middle of the flexible piece 423 is bent.
Through the arrangement of the flexible piece 423, the contact surface between the flexible piece 423 and soil can be reduced, the stability of the rolling matrix 42 can be further improved, meanwhile, the stability of the rolling matrix 42 is improved, the efficiency of breaking away sediment at the bottom of the straight line segment 11 is further improved, the damage probability of the rolling matrix 42 is reduced, and the stable forward movement of the rolling assembly 4 at the bottom in a running way is realized; in addition, the bottom of the straight line segment 11 can be relatively protected by the flexible piece 423, so that the situation that the surface abrasion of the insert 422 and the bottom of the straight line segment 11 increases the roughness of the bottom surface due to excessive friction contact is avoided, and the passing speed of water flow and sediment is influenced.
Furthermore, the bending direction of the flexible piece 423 and the cutting 422 is the same, and the design can realize that the bottom sediment is not carried up by the flexible piece 423 and the cutting 422, so as to prevent the water turbidity.
The cleaning assembly 5 comprises a mounting base table 51, the mounting base table 51 is arranged at the bottom side of the push-broom base body 31, a first motor 52 which is arranged in one-to-one correspondence with the mounting base table 51 is arranged at the top side of the push-broom assembly 3, a rotating shaft 53 is arranged at the output end of the first motor 52 in an extending mode, a rotating base body 54 is connected to the end portion of the rotating shaft 53, and the mounting base table 51 is used for determining the position of the rotating base body 54 relative to the push-broom base body 31;
the rotary base 54 is circumferentially provided with at least one ring 55, and the ring 55 is circumferentially provided with a plurality of cleaning strips 56.
Through the above design, the rotating shaft 53 is extended by the first motor 52 to drive the rotating base body 54 to rotate, the rotating base body 54 is circumferentially and circumferentially provided with at least one ring body 55, and the ring body 55 is circumferentially and circumferentially provided with a plurality of cleaning strips 56, namely, the rotating motion of the cleaning strips 56 is realized by the driving of the first motor 52, the scattering of sediment and caking of the cleaning strips 56 in the rotating process is realized, and after the cleaning strips 56 are rotated, the rotating range of the cleaning strips 56 covers the position from the bottom surface of the straight line segment 11 to the push-broom base body 31, so that the frequency of repeated movement of the sediment, in the moving straight line segment 11, of the whole push-broom mechanism can be reduced or reduced, and the sweeping effect can be ensured.
Furthermore, a flow inlet is provided on one side of the push broom substrate 31 near the rolling assembly 4, a flow inlet channel is provided extending inwards, and the other end of the flow inlet channel is provided on the bottom side of the push broom substrate 31.
Through the design, the fluid entering from the inlet can change the flow direction towards the bottom side of the push broom substrate 31, namely, the fluid downward-pressing flow is realized, and then the fluid can flow towards the direction of the cleaning strip 56, so that the sediment in the fluid is guided to flow downwards and is effectively trapped by the cleaning strip 56, the collection effect of the sediment is ensured, the bottom of the straight line segment 11 is relatively disturbed in water flow, the middle upper part is relatively stable, the water body is prevented from sloshing and splashing, the bottom of the straight line segment 11 is relatively disturbed in water flow, the sediment at the bottom is facilitated to flow, and the problems of sediment adhesion and the like are avoided.
While the foregoing embodiments have been described in detail in connection with the embodiments of the invention, it should be understood that the foregoing embodiments are merely illustrative of the invention and are not intended to limit the invention, and any modifications, additions, substitutions and the like made within the principles of the invention are intended to be included within the scope of the invention.
Claims (2)
1. The reciprocating flow sand conveying self-adaptive moving bed test water tank comprises a circulating tank body (1) and a bidirectional pump (2), wherein the circulating tank body (1) comprises at least two straight line sections (11), adjacent straight line sections (11) are connected through curve sections (12), and the curve sections (12) are provided with the bidirectional pump (2);
the bidirectional pump is characterized in that the curve section (12) is provided with a plurality of parallel rectifying baffles (13), and the front end and the rear end of the bidirectional pump (2) are respectively provided with a horn-shaped shrinkage tube (21);
the reciprocating flow sand conveying self-adaptive moving bed test water tank further comprises a push-broom assembly (3), a sliding rail (14) is arranged at the upper part of the straight line section (11), and the push-broom assembly (3) is matched with the sliding rail (14);
the push broom assembly (3) comprises a driving mechanism and a push broom base body (31), the driving mechanism is matched with the sliding rail (14), the driving mechanism is provided with a lifting rod (32) in a penetrating mode, and the bottom end of the lifting rod (32) is connected with the push broom base body (31);
auxiliary wheels (33) are arranged on two sides of the push-broom base body (31) opposite to the side wall of the straight line section (11), a rolling assembly (4) is arranged on one side of the push-broom base body (31) along the advancing direction of the straight line section (11), and a plurality of cleaning assemblies (5) are arranged on the push-broom base body (31);
the rolling assembly (4) comprises a hinging rod (41), one end of the hinging rod (41) is connected to one side of the push broom base body (31) along the advancing direction of the straight line section (11), a columnar rolling base body (42) is arranged at the other end of the hinging rod (41), and the rolling base body (42) is hinged with the hinging rod (41) through a frame body (43);
the rolling matrix (42) is circumferentially provided with a plurality of slots (421), cutting strips (422) which are arranged in one-to-one correspondence with the slots (421) are circumferentially arranged on the rolling matrix (42), and the middle parts of the cutting strips (422) are bent;
the shrinkage tube (21) is provided with a shrinkage end (23) and an amplification end (22), and the shrinkage end (23) of the shrinkage tube (21) is connected with the bidirectional pump (2);
a transition section (24) is connected to the side of the amplifying end (22) of the shrinkage tube (21), and the other side of the transition section (24) is connected with the curve section (12) in a fitting way;
the cleaning assembly (5) comprises an installation base (51), the installation base (51) is arranged at the bottom side of the push-broom base body (31), first motors (52) which are arranged in one-to-one correspondence with the installation base (51) are arranged at the top side of the push-broom assembly (3), a rotating shaft (53) is arranged at the output end of each first motor (52) in an extending mode, and a rotating base body (54) is connected to the end portion of each rotating shaft (53);
the rotary base body (54) is circumferentially provided with at least one ring body (55), and the ring body (55) is circumferentially provided with a plurality of cleaning strips (56) in a extending manner.
2. The reciprocating flow sand conveying self-adaptive moving bed test water tank according to claim 1, wherein flexible sheets (423) are arranged on the outer side wall of the slot (421) in an extending mode, the middle portions of the flexible sheets (423) are bent, and the bending directions of the flexible sheets (423) and the cutting (422) are the same.
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| CN202311132716.2A CN116858492B (en) | 2023-09-05 | 2023-09-05 | Reciprocating flow sand conveying self-adaptive moving bed test water tank |
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| CN202311132716.2A CN116858492B (en) | 2023-09-05 | 2023-09-05 | Reciprocating flow sand conveying self-adaptive moving bed test water tank |
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