CN223304974U - Side trough spillway sand-blocking rectifying chute device suitable for high-sand-content water flow - Google Patents

Abstract

The utility model discloses a sand blocking and rectifying chute device of a side chute spillway suitable for high-sand-content water flow, which comprises a sand blocking and rectifying chute device formed by an upstream bottom plate of the spillway, an overflow weir, a water discharging chute contraction section and a side chute spillway, and a side chute assembly formed by a side chute bottom plate and a side chute opposite side plate, and further comprises a plurality of rectifying chute assemblies which are equidistantly arranged above the side chute spillway, wherein the rectifying chute assemblies comprise a first water baffle and a second water baffle, and the first water baffle and the second water baffle are respectively fixedly connected to two ends of a rectifying chute water-facing plate; through rectification chute subassembly and block husky groove subassembly of collection, form useful spiral flow when high sand-laden rivers flow through rectification chute subassembly, offset the erosion of harmful spiral flow to side tank side wall, block the silt of husky groove subassembly interception rivers simultaneously and guide to the sand conveying route through husky tank bottom board of collection, effectively reduce structure wearing and tearing, promote and block husky efficiency, avoid silt siltation to influence the overflow ability.

Description

Side trough spillway sand-blocking rectifying chute device suitable for high-sand-content water flow

Technical Field

The utility model relates to the technical field of hydraulic engineering, in particular to a side trough spillway sand blocking and rectifying chute device suitable for high-sand-content water flow.

Background

The side channel spillway is suitable for the scene that the topography is steep and the positive channel spillway is difficult to arrange, can reduce the excavation volume of earth and stone by a wide margin.

However, the water flow passing through the weir easily forms spiral flow in the existing side grooves, the abrasion speed of the concrete side wall can be increased, the sand content of some rivers in northwest and North China is very high, the annual sand transmission capacity of seven rivers is up to 23 hundred million tons, the high sand-containing water flow can increase the abrasion and damage of the structure due to the negative influence brought by the spiral flow in the operation process of the side groove spillway, the strength of the structure is reduced, the service life of the spillway building is influenced, the phenomenon that sediment is deposited at the bottom of the spillway can occur in the side groove spillway under the condition of high sand-containing water flow, the overflow capacity of the spillway building is seriously influenced, if flood is encountered, the spillway overtopping is possibly caused, the safety of a dam body is threatened, and if the dam body is cleaned manually and regularly, a large amount of manpower and material resources can be consumed.

Therefore, the utility model provides a side trough spillway sand-blocking rectifying chute device suitable for high-sand-containing water flow, so as to solve the problems.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a side-trough spillway sand-blocking rectifying chute device suitable for high-sand-content water flow, which solves the problem that the above-mentioned water flow passing over a weir easily forms spiral flow in the existing side trough and can aggravate the abrasion acceleration of a concrete side wall.

The utility model is realized by the following technical proposal that the sand blocking and rectifying chute device of the side chute spillway suitable for high sand-containing water flow comprises a sand blocking and rectifying chute device which consists of an upstream bottom plate of the spillway, an overflow weir, a water discharging chute contraction section and a side chute spillway, and a side chute assembly which consists of a side chute bottom plate and a side chute opposite-shore side plate,

The rectification chute assemblies are equidistantly arranged above the side chute spillway, each rectification chute assembly comprises a first water baffle and a second water baffle, the first water baffle and the second water baffle are respectively and fixedly connected to two ends of a rectification chute water-facing plate so as to form a chute body structure, and the bottom of the rectification chute water-facing plate is fixedly connected with a sand conveying chute bottom plate which gradually reduces in height from the rectification chute water-facing plate to a side chute opposite side plate; after the water flows through the overflow weir, the water flows enter the side trough spillway, a part of stagnant water area is formed by the high accumulation of water near the water level, the high accumulation of water can be used for counteracting the impact of the incoming flow, so as to counteract the negative influence of harmful spiral flow, and the part of water flows in the space of the side trough spillway flow through the second water baffle to form beneficial spiral flow in the rectifying chute assembly, so that sediment is carried into the sandbox through the action of the spiral flow.

Preferably, the tail end of the sand conveying chute bottom plate is provided with a control assembly, the control assembly comprises a first photoelectric sensor, a first motor, a second motor and a control center, output shafts of the first motor and the second motor are respectively and fixedly connected with a first rotating shaft and a second rotating shaft, and the first rotating shaft and the second rotating shaft are respectively and fixedly connected with a first flat gate and a second flat gate.

Preferably, the bottom of the side tank assembly is fixedly connected with a storage Sha Shusha assembly, the bottom area of the side tank opposite side plate is provided with holes for facilitating outflow of sediment, the storage Sha Shusha assembly comprises a sand collecting box and a sand conveying pipeline, the first rotating shaft is fixedly connected to the joint of the side tank opposite side plate and the sand collecting box and driven to rotate by a first motor, the first flat gate is fixedly connected to the first rotating shaft, a second photoelectric sensor is fixedly connected to the side wall of the sand collecting box, the sand conveying pipeline is fixedly connected to the sand collecting box, the second rotating shaft is fixedly connected to the joint of the sand conveying pipeline and the sand collecting box, and the second rotating shaft is driven by a second motor.

Preferably, the control center, the first photoelectric sensor, the first motor and the second motor are electrically connected, the first photoelectric sensor is used for receiving signals of the second photoelectric sensor, and the first motor and the second motor are controlled to be started and closed so as to control the second photoelectric sensor and the first flat gate to open and close.

Preferably, the sand blocking and sand collecting groove assemblies are respectively and fixedly connected to one side of the rectifying chute assembly, the sand blocking and sand collecting groove assemblies comprise a sand collecting groove bottom plate and sand collecting groove water facing plates and sand collecting groove back water plates which are fixed to two sides of the sand collecting groove bottom plate, the sand collecting groove water facing plates, the sand collecting groove back water plates and the sand collecting plates Sha Caode are used for forming the sand collecting grooves, the upper parts of the sand collecting groove back water plates are fixedly connected with sand blocking nets, one sides of the sand collecting grooves are fixedly connected with connecting plates, and communication holes are formed in the opposite side surfaces of the connecting plates.

Preferably, the sand collecting tank bottom plate is positioned at the bottom of the sand collecting tank, and the height of the sand collecting tank bottom plate from the connecting plate to the surface of the communication hole is gradually reduced.

The utility model provides a side trough spillway sand-blocking rectifying chute device suitable for high-sand-content water flow. Compared with the prior art, the method has the following beneficial effects:

(1) This side channel spillway that is applicable to high sand-laden rivers blocks sand rectification chute arrangement, through rectification chute subassembly and block sand collection sand tank subassembly, form useful spiral flow when high sand-laden rivers flow through rectification chute subassembly, offset the scouring of harmful spiral flow to side tank side wall, block sand collection sand tank subassembly simultaneously and intercept silt in the rivers and guide to the sand conveying route through sand collection tank bottom board, effectively reduce structure wearing and tearing, promote and block sand efficiency, avoid silt siltation to influence the overflow ability.

(2) The side trough spillway sand blocking rectifying chute device suitable for the high-sand-content water flow is characterized in that a control assembly and a storage Sha Shusha assembly are used for controlling a motor to drive a first flat gate to be closed and a second flat gate to be opened by a signal through a control center when sediment in a sediment collecting box reaches a second photoelectric sensor detection position, so that automatic sediment discharge is realized, the gate is reset after the sediment is discharged, the sediment is collected continuously, manual cleaning is not needed, the continuous and stable overflow of the side trough spillway is ensured, and the maintenance cost is reduced.

Drawings

FIG. 1 is a schematic view of a sand blocking and rectifying chute device of the present utility model arranged in a side trough spillway;

FIG. 2 is a schematic diagram of the formation of detrimental spiral flow in a side trough by a weir water flow according to the present utility model

FIG. 3 is a view of the sand control rectification chute apparatus of the present utility model in a deployed orientation in a side chute;

FIG. 4 is a schematic diagram of the main structure of the sand blocking and rectifying chute device of the utility model;

FIG. 5 is a schematic view of the main body of the sand blocking and rectifying chute device;

FIG. 6 is a cross-sectional view of the main body of the sand control rectification chute apparatus of the present utility model;

FIG. 7 is a schematic view of the beneficial spiral flow in the rectifying chute of the present utility model;

FIG. 8 is a schematic diagram of the advantageous spiral flow generation principle of the present utility model;

FIG. 9 is a schematic diagram of a rectifying chute and a storage Sha Shusha assembly according to the present utility model;

fig. 10 is an enlarged view of fig. 9 a in accordance with the present utility model.

In the figure:

1. The sand blocking and rectifying chute device comprises a bottom plate on the upstream of a spillway, a 102 overflow weir, a 103 and a shrinkage section of a water discharge tank;

2. side groove components, 201, side groove bottom plates, 202, side groove opposite bank side plates;

4. A rectifying chute assembly; 401, a first water baffle, 402, a second water baffle, 403, a rectifying chute water-facing plate, 404, a sand conveying chute bottom plate;

5. A sand blocking and collecting groove component; 501, a sand collecting groove water facing plate, 502, a sand collecting groove, 503, a communication hole, 504, a sand collecting groove back water plate, 505, a connecting plate, 506, a sand blocking net, 507 and a sand collecting groove bottom plate;

6. Water surface, 601, upstream water surface, 602, harmful spiral flow, 603, beneficial spiral flow;

7. The control assembly comprises a control component 701, a first photoelectric sensor 702, a second photoelectric sensor 703, a first flat gate, a second flat gate 704, a first rotating shaft 705, a second rotating shaft 706, a first motor 707, a second motor 708, a second motor 709 and a control center;

8. A storage Sha Shusha component, 801 a sand collecting box and 802 a sand conveying pipeline.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 10, a side trough spillway sand-blocking and rectifying chute apparatus suitable for high-sand-content water flow includes a sand-blocking and rectifying chute apparatus 1 composed of a spillway upstream bottom plate 101, a spillway weir 102, a spillway constriction 103 and a side trough spillway 104, and a side trough assembly 2 composed of a side trough bottom plate 201 and side trough opposite side plates 202,

The plurality of rectifying chute assemblies 4 are arranged above the side chute spillway 104 at equal intervals, the rectifying chute assemblies 4 comprise a first water baffle 401 and a second water baffle 402, the first water baffle 401 and the second water baffle 402 are respectively fixedly connected to two ends of a rectifying chute water-facing plate 403 to form a tank body structure, the bottom of the rectifying chute water-facing plate 403 is fixedly connected with a sand conveying chute bottom plate 404 with gradually reduced height along the rectifying chute water-facing plate 403 to a side chute opposite side plate 202, so that water flows into the side chute spillway 104 after passing through the overflow weir 102, a part of stagnant water area is formed near the water level, the accumulated water body can be used for counteracting the impact of the incoming flow, so as to counteract the negative influence of a harmful spiral flow 602, and a part of water flow in the space of the side chute spillway 104 flows through the second water baffle 402, and a beneficial spiral flow 603 is formed in the rectifying chute assemblies 4 so as to carry sediment into the sand collecting box 801 through the action of the spiral flow;

During operation, high-sand-content water flows to overflow weir 102 through overflow chute upstream bottom plate 101, after crossing overflow weir 102, water flows into side chute overflow chute 104, water flows in the area close to side chute opposite side plate 202 and is blocked by rectifying chute assembly 4 to generate water level to be raised, a dead water area is formed, the raised water body can buffer incoming flow impact, the scouring action of harmful spiral flow 602 on side chute side walls is counteracted, part of water flows enter the chute body structure of rectifying chute assembly 4 (surrounded by first water baffle 401, second water baffle 402 and rectifying chute opposite side plate 403), because sand-conveying chute bottom plate 404 inclines (gradually reduces in height) along rectifying chute opposite side plate 403 to side chute opposite side plate 202, water flows in the groove to form a clockwise beneficial spiral flow 603, the spiral flow gathers sediment in the water to the bottom of the chute body by utilizing centrifugal force, and is conveyed along the inclined sand-conveying chute bottom plate 404 to the direction of side chute opposite side plate 202, at the same time, part of water flow is blocked by sediment collector chute assembly 5 on one side of rectifying chute assembly 4 (surrounded by first water baffle plate 401, part of sediment collector plate 501 is blocked by sediment collector plate 506 and falls into connecting plate 503, and falls into sediment collector bottom plate 503 because of sediment collector plate 503.

Embodiment two: referring to fig. 1 to 10, the present embodiment provides a technical solution based on the first embodiment: the tail end of the sand conveying chute bottom plate 404 is provided with a control assembly 7, the control assembly 7 comprises a first photoelectric sensor 701, a first motor 707, a second motor 708 and a control center 709, the output shafts of the first motor 707 and the second motor 708 are respectively and fixedly connected with a first rotating shaft 705 and a second rotating shaft 706, the first rotating shaft 705 and the second rotating shaft 706 are respectively and fixedly connected with a first flat gate 703 and a second flat gate 704, the bottom of the side chute assembly 2 is fixedly connected with a storage Sha Shusha assembly 8, the bottom area of the side chute opposite side plate 202 is provided with holes, the sediment outflow is convenient, the storage Sha Shusha assembly 8 comprises a sand collecting box 801 and a sand conveying pipeline 802, the first rotating shaft 705 is fixedly connected to the joint of the side chute opposite side plate 202 and the sand collecting box 801, the first flat gate 703 is fixedly connected with the first rotating shaft 705, the second photoelectric sensor 702 is fixedly connected to the side wall of the sand collecting box 801, the sand conveying pipeline 802 is fixedly connected to the sand collecting box 801, the second rotating shaft 706 is fixedly connected to the joint of the sand conveying pipeline 802 and the sand collecting box 801, the second rotating shaft 706 is driven by the second motor 708, the control center 709, the first photoelectric sensor 701, the first motor 707 and the second motor 708 are electrically connected, the first photoelectric sensor 701 is used for receiving signals of the second photoelectric sensor 702, the first motor 707 and the second motor 708 are controlled to be started and closed so as to control the second photoelectric sensor 702 and the first flat gate 703 to open and close, the sand blocking groove assemblies 5 are respectively and fixedly connected to one side of the rectifying chute assembly 4 and comprise a sand collecting groove bottom plate 507 and sand collecting groove water facing plates 501 and sand collecting groove back water plates 504 fixed on two sides of the sand collecting groove bottom plate 507, the sand collecting tank water-facing plate 501, the sand collecting tank back water plate 504 and the Sha Caode plate 507 form a sand collecting tank 502, the upper part of the sand collecting tank back water plate 504 is fixedly connected with a sand blocking net 506, one side of the sand collecting tank 502 is fixedly connected with a connecting plate 505, the opposite side surfaces of the connecting plate 505 are provided with communication holes 503, the sand collecting tank bottom plate 507 is positioned at the bottom of the sand collecting tank 502, and the height from the sand collecting tank bottom plate 507 to the surface of the communication holes 503 is gradually reduced along the connecting plate 505;

During operation, sediment entering the sediment transport chute bottom plate 404 moves to the tail end along with the beneficial spiral flow 603, the sediment enters the sediment collection box 801 of the storage Sha Shusha assembly 8 through the opening at the bottom of the side chute opposite-bank side plate 202, when sediment in the sediment collection box 801 is accumulated to the detection position of the second photoelectric sensor 702, the second photoelectric sensor 702 sends a signal to the first photoelectric sensor 701, the first photoelectric sensor 701 transmits the signal to the control center 709, the control center 709 triggers the first motor 707 to start, the first rotating shaft 705 is driven to rotate, the first flat gate 703 is closed (the channels of the side chute and the sediment collection box 801 are blocked), the second motor 708 is simultaneously started, the second rotating shaft 706 is driven to rotate, the second flat gate 704 is opened (the sediment collection box 801 is communicated with the sediment transport pipeline 802), the sediment is discharged along the sediment transport pipeline 802, when the sediment in the sediment collection box 801 is completely discharged, the second photoelectric sensor 702 detects no sediment, the control center 709 reversely drives the first motor 707 and the second flat gate 708, the first flat gate 703 is opened, the second flat gate 704 is closed, the second flat gate 704 is restored to be in an automatic state, the side chute is restored, the stable overflow collection process is avoided, and the stable overflow discharge is realized.

And all that is not described in detail in this specification is well known to those skilled in the art.

The working principle is that when the sand-collecting device works, firstly high-sand-content water flows to the overflow weir 102 through the overflow channel upstream bottom plate 101, and then enters the side trough overflow channel 104 after being overturned, the water level is raised to form a dead water area due to the blocking of the rectifying chute assembly 4, the flushing of harmful spiral flow 602 is counteracted, part of the water flow enters the rectifying chute assembly 4 (which is surrounded by the first water baffle 401, the second water baffle 402 and the rectifying chute water-facing plate 403), beneficial spiral flow 603 is formed along the inclined sand-conveying chute bottom plate 404, and the sand is conveyed to the sand-collecting box 801, in the sand-blocking sand-collecting channel assembly 5, the water flow impacts the sand-collecting groove water-facing plate 501, the sand is blocked by the sand blocking net 506 to fall into the sand-collecting groove 502, and flows into the sand-conveying chute bottom plate 404 through the communication holes 503 along the sand-collecting groove bottom plate 507, the sand enters the sand-conveying chute bottom plate 404 through the bottom opening of the side chute 202, after the second photoelectric sensor 702 detects the sand, the sand is transmitted to the control center 709 through the first photoelectric sensor 701, the first motor drives the first rotary shaft 705 to close the first flat-plate 703, the second flat-plate 708 is driven by the first motor 708, the second flat-plate 704 drives the first rotary shaft 708, the second flat plate 704 is driven by the second flat gate 706, the second flat plate 706 is opened, and the second flat gate 706 is controlled by the second flat plate 706, and the flat gate 704 is opened, and the flat-plate 704 is closed.

It should be noted that standard parts used in the present utility model can be purchased from market, special-shaped parts can be customized according to descriptions of the specification and the drawings, specific connection modes of the parts adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art, machinery, parts and equipment adopt conventional types in the prior art, and circuit connection adopts conventional connection modes in the prior art, so that details are not described in detail in the specification, and the details of the connection modes are known to those skilled in the art.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The side trough spillway sand blocking and rectifying chute device suitable for the high-sand-content water flow comprises a sand blocking and rectifying chute device (1) consisting of a spillway upstream bottom plate (101), a spillway weir (102), a spillway shrinkage section (103) and a side trough spillway (104) and a side trough assembly (2) consisting of a side trough bottom plate (201) and a side trough opposite side plate (202), and is characterized by further comprising,

The utility model provides a plurality of rectification chute subassembly (4), the equidistance is arranged in the top of side channel spillway (104), rectification chute subassembly (4) are including first breakwater (401) and second breakwater (402), and first breakwater (401) and second breakwater (402) fixed connection in the both ends that rectification chute met water board (403) respectively to form the cell body structure, the bottom fixedly connected with that rectification chute met water board (403) along rectification chute met water board (403) to side channel opposite bank curb plate (202) highly reduce sand chute bottom plate (404).

2. The side trough spillway sand blocking and rectifying chute device suitable for high-sand-content water flow according to claim 1, wherein a control assembly (7) is arranged at the tail end of the sand conveying chute base plate (404), the control assembly (7) comprises a first photoelectric sensor (701), a first motor (707), a second motor (708) and a control center (709), a first rotating shaft (705) and a second rotating shaft (706) are fixedly connected to output shafts of the first motor (707) and the second motor (708) respectively, and a first flat gate (703) and a second flat gate (704) are fixedly connected to the first rotating shaft (705) and the second rotating shaft (706) respectively.

3. The side trough spillway sand blocking and rectifying chute device suitable for high-sand-content water flow is characterized in that a storage Sha Shusha component (8) is fixedly connected to the bottom of the side trough component (2), holes are formed in the bottom area of a side trough opposite side plate (202) so as to facilitate outflow of sediment, the storage Sha Shusha component (8) comprises a sand collecting box (801) and a sand conveying pipeline (802), a first rotating shaft (705) is fixedly connected to the joint of the side trough opposite side plate (202) and the sand collecting box (801), the first rotating shaft (705) is driven to rotate by a first motor (707), a first flat plate gate (703) is fixedly connected to the first rotating shaft (705), a second photoelectric sensor (702) is fixedly connected to the side wall of the sand collecting box (801), the sand conveying pipeline (802) is fixedly connected to the sand collecting box (801), and a second rotating shaft (706) is fixedly connected to the joint of the sand conveying pipeline (802) and the sand collecting box (801), and the second rotating shaft (706) is driven by a second motor (708).

4. The side-trough spillway sand-blocking rectifying chute device for high-sand-containing water flow according to claim 3, wherein the control center (709), the first photoelectric sensor (701), the first motor (707) and the second motor (708) are electrically connected, the first photoelectric sensor (701) is used for receiving signals of the second photoelectric sensor (702), and the first motor (707) and the second motor (708) are controlled to be started and closed so as to control the second photoelectric sensor (702) and the first flat gate (703) to be opened and closed.

5. The side trough spillway sand blocking and rectifying chute device suitable for high-sand-content water flow according to claim 1, wherein a plurality of sand blocking and sand collecting trough components (5) are fixedly connected to one side of the sand blocking and rectifying chute component (4) respectively, the sand blocking and rectifying chute device comprises a sand collecting trough bottom plate (507) and sand collecting trough water facing plates (501) and sand collecting trough back plates (504) which are fixed to two sides of the sand collecting trough bottom plate (507), the sand collecting trough water facing plates (501), the sand collecting trough back plates (504) and the sand collecting Sha Caode plates (507) form a sand collecting trough (502), a sand blocking net (506) is fixedly connected to the upper portion of the sand collecting trough back plates (504), a connecting plate (505) is fixedly connected to one side of the sand collecting trough (502), and communication holes (503) are formed in opposite sides of the connecting plate (505).

6. The side-trough spillway sand-blocking rectifying chute device for high-sand-containing water flow as claimed in claim 5, wherein the sand-collecting tank bottom plate (507) is positioned at the bottom of the sand-collecting tank (502), and the height of the sand-collecting tank bottom plate (507) gradually decreases from the connecting plate (505) to the surface of the communication hole (503).