CN111778919B - Ecological flow discharging device and ecological flow discharging method for river blocking engineering - Google Patents
Ecological flow discharging device and ecological flow discharging method for river blocking engineering Download PDFInfo
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- CN111778919B CN111778919B CN202010836010.4A CN202010836010A CN111778919B CN 111778919 B CN111778919 B CN 111778919B CN 202010836010 A CN202010836010 A CN 202010836010A CN 111778919 B CN111778919 B CN 111778919B
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- 238000007599 discharging Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000000903 blocking effect Effects 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 244
- 238000007667 floating Methods 0.000 claims abstract description 53
- 238000009434 installation Methods 0.000 claims abstract description 14
- 238000004140 cleaning Methods 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- 238000005086 pumping Methods 0.000 abstract description 8
- 239000000725 suspension Substances 0.000 abstract description 5
- 230000008569 process Effects 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000013049 sediment Substances 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
- B02C18/0092—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage for waste water or for garbage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/08—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
- B02C18/10—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers with drive arranged above container
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/32—Methods or installations for obtaining or collecting drinking water or tap water with artificial enrichment, e.g. by adding water from a pond or a river
- E03B3/36—Methods or installations for obtaining or collecting drinking water or tap water with artificial enrichment, e.g. by adding water from a pond or a river of surface water
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B5/00—Use of pumping plants or installations; Layouts thereof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/52—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring the height of the fluid level due to the lifting power of the fluid flow
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Food Science & Technology (AREA)
- Water Supply & Treatment (AREA)
- Public Health (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses an ecological flow lowering device and an ecological flow lowering method for a river blocking project. The invention has the advantages that the pipe section of the drain pipe positioned in the water storage area is provided with the installation part and the floating component, and the floating component can provide larger buoyancy so as to ensure that the water pump is suspended in the nuclear water storage area; meanwhile, the installation part is provided with a plurality of fixing frames, and the installation height of the floating assembly can be adjusted according to the water level height of the water storage area, so that the suction pump is always in a suspension state, the suction pump is effectively prevented from sinking into the river bottom, and normal water pumping and discharging operation is ensured.
Description
Technical Field
The invention relates to a river blocking project, in particular to an ecological flow discharging device for the river blocking project and an ecological flow discharging method.
Background
In water conservancy and hydropower engineering, in order to maintain the ecological environment of the downstream and maintain ecological balance of the downstream, an ecological flow lowering structure is often used to lower the water body in the upstream river water storage area to the downstream. At present, most of ecological flow discharging structures utilize water pumps to pump upstream water bodies into downstream river channels. However, when the water pump is installed, the water pump sinks to the bottom of the river due to gravity, so that sediment at the bottom of the river is particularly easy to enter the cavity of the water pump under the action of pumping force, and the normal operation of the water pump can be influenced by long-time operation; in addition, in the water pumping process, sundries (particularly larger garbage or aquatic plants and the like) in river water easily enter the water pump or block the water inlet of the water inlet pipe, so that the water pump cannot pump water and normal work is influenced; in the river water lowering, the operator can determine the water discharge amount only by the water flow at the water outlet of the water discharge pipe, and cannot grasp the water discharge amount.
Disclosure of Invention
The invention aims to provide an ecological flow lowering device for river blocking engineering and also relates to an ecological flow lowering method, which not only can suspend a water pump in a water storage area, but also can pre-filter water bodies to avoid blocking the water pump.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the invention relates to an ecological flow lowering device for river blocking engineering, which comprises a water inlet pipe, a water suction pump and a water discharge pipe which are sequentially communicated; the ecological flow lowering device also comprises
A mounting part arranged at the water inlet end part of the drain pipe;
and the floating assembly is arranged on the mounting part, so that the water suction pump is suspended in the water storage area.
Further, a flow detection unit and a flow regulating valve are arranged on the drain pipe.
Still further, the flow rate detection unit includes
The branch pipe is arranged on the drain pipe, and a water permeable hole is formed in the drain pipe at the position corresponding to the branch pipe;
a floating plate disposed in the branch pipe;
the floating rod is provided with a first connecting end and a second connecting end, the first connecting end is connected with the floating plate, and the second connecting end extends out of the branch pipe;
a reset piece sleeved on the floating rod in the branch pipe;
the water in the drain pipe enters the branch pipe through the water permeable hole and pushes the floating plate to move, so that the floating rod extends outwards.
Still further, the interval is provided with fixed part and is used for accomodating on the drain pipe the collection box of fixed part, fixed part is including setting up at the articulated seat of drain pipe bottom and rotating the bracing piece that sets up on the articulated seat the cover is equipped with the inserted bar that has the pointed end on the bracing piece.
Further, the mounting part comprises a plurality of fixing frames sleeved on the drain pipe at intervals;
the floating component comprises a connecting frame arranged on the fixing frame and a floating piece arranged on the connecting frame, and the floating piece is a buoyancy block, a buoyancy plate or an air bag.
Still further, the water inlet of inlet tube department is provided with the filter, is provided with in the inlet tube and is used for clearing up the clearance subassembly of filter, clearance subassembly includes
The rotating shaft is provided with an upper connecting end;
the water draining piece is arranged at the upper connecting end and positioned in the water inlet pipe, and is provided with through holes for water to flow through and drain holes which are distributed at equal intervals along the circumference of the water draining piece and communicated with the through holes;
the water outlet heads are respectively communicated with each water drain hole;
the cleaning piece is sleeved on the supporting column and is in clearance fit with the filtering piece; and
the support connecting part is used for rotationally connecting the rotating shaft with the inner wall of the water inlet pipe;
the cleaning assembly is provided with a first state and a second state, and in the first state, the water suction pump is in an idle state to enable the cleaning assembly to be static; in the second state, the water pumped by the water pump to generate suction force enters the water inlet pipe from the water outlet head, and the reaction force of the water is applied to the water draining part, so that the water draining part drives the cleaning part to rotate through the rotating shaft to clean sundries on the inner side surface of the filtering part.
Further, the lower connecting end of the rotating shaft penetrates out of the filtering piece, and the lower connecting end is provided with a sundry cutting part which comprises a connecting sleeve arranged at the lower connecting end and a cutting knife arranged on the connecting sleeve;
the cutting knife comprises a horizontal cutting section fixedly connected to the connecting sleeve and a vertical cutting section arranged at the other end part of the horizontal cutting section.
Further, the filter element comprises a filter layer with a hemispherical structure and a connecting pipe arranged on the filter layer, and the connecting pipe is in threaded connection with the water inlet pipe; the cleaning piece is an arc-shaped cleaning plate matched with the filter layer.
Still further, the support connection includes
The support frame is arranged at the water inlet of the water inlet pipe; and
the bearing is arranged at the central position of the supporting frame in a sealing way, and the rotating shaft penetrates through the bearing.
The invention also provides an ecological flow rate lowering method, which adopts the ecological flow rate lowering device, and specifically comprises the following steps:
installing the floating assembly on the installation part of the drain pipe, then placing the ecological flow downward device into a water storage area of a river, and suspending the water suction pump in the water storage area under the action of the buoyancy of the floating assembly; then, the fixing part on the drain pipe is inserted into the ground to fix the water outlet end of the drain pipe; finally, starting the water suction pump, observing the water outlet flow of the drain pipe through the flow detection unit, regulating the flow through the flow regulating valve, and discharging the river water in the water storage area to a downstream river channel by the water suction pump.
The invention has the advantages that the pipe section of the drain pipe positioned in the water storage area is provided with the installation part and the floating component, and the floating component can provide larger buoyancy so as to ensure that the water pump is suspended in the nuclear water storage area; meanwhile, the installation part is provided with a plurality of fixing frames, and the installation height of the floating assembly can be adjusted according to the water level height of the water storage area, so that the suction pump is always in a suspension state, the suction pump is effectively prevented from sinking into the river bottom, and normal water pumping and discharging operation is ensured.
The fixing part is arranged on the drain pipe close to the water outlet end and can be inserted into the ground to fix the drain pipe, so that the water outlet end of the drain pipe is prevented from swinging due to the reaction force of river water.
The drain pipe provided by the invention is provided with the flow detection unit and the flow regulating valve, the flow detection unit can visually observe the water outlet flow of the drain pipe, the water outlet flow can be regulated through the flow regulating valve, the detection and control of the water outlet flow in the drain pipe are realized, and the controllability is strong.
The water inlet on the water inlet pipe is provided with the filter layer, impurities (such as larger-particle sediment, smaller algae and the like) in the river water can be effectively filtered, the cleaning component is arranged in the water inlet of the water inlet pipe, the filtered river water enters the water inlet pipe through the through hole of the water discharge disc and the water outlet head, and the river water flows out from the water outlet head and simultaneously gives reverse acting force to the water discharge disc due to the included angle between the water outlet head and the water discharge disc, so that the water discharge disc rotates in the water inlet pipe, the arc cleaning plate is driven by the rotating shaft to clean the filter layer, smooth water inlet is ensured, and the structure is ingenious.
The outer end part of the rotating shaft is provided with the cutting knife, and when the water pump works, the rotating shaft can drive the cutting knife to rotate so as to cut up sundries (such as aquatic plants, garbage and the like) in river water, further prevent the sundries from being wound on the filter layer and further ensure smooth water pumping.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is a top view of the floatation assembly of fig. 2.
Fig. 4 is an enlarged view of the fixing portion in fig. 1.
Fig. 5 is a storage state diagram of the fixing portion in fig. 4.
Fig. 6 is an enlarged view of the cleaning assembly of fig. 1.
Fig. 7a is a top view of the drain pan.
Fig. 7b is a schematic diagram of the head water.
Fig. 8 is a top view of the support connection of fig. 6.
Fig. 9 is another schematic view of the support connection of the present invention.
Fig. 10 is a top view of fig. 9.
Fig. 11 is an enlarged view of the flow rate detection unit in fig. 1.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings, and the embodiments and specific operation procedures are given by the embodiments of the present invention under the premise of the technical solution of the present invention, but the scope of protection of the present invention is not limited to the following embodiments.
As shown in fig. 1, the ecological flow lowering device for river-blocking engineering according to the present invention comprises a water inlet pipe 10, a water pump 20 and a water outlet pipe 30 (the water outlet pipe 30 comprises a vertical section communicated with a water outlet of the water pump 20 and a horizontal section for discharging water into the downstream, i.e. the water outlet pipe 30 has an L-shaped structure); this ecological flow puts device still includes setting up the installation department 40 at drain pipe 30 water inflow tip, sets up the showy subassembly 50 on installation department 40, and showy subassembly 50 can provide buoyancy, makes suction pump 20 suspend on the water storage district of river, effectively avoids suction pump 20 to sink because of gravity, and then prevents that silt from getting into in suction pump 20 and influencing suction pump 20's normal use.
As shown in fig. 2 to 3, the installation part 40 includes a fixing frame 401 which is arranged on the vertical section of the drain pipe 30 at intervals, and the floating components 50 are detachably connected with the fixing frame 401, so that the floating components 50 can be installed on the fixing frame 401 with any height, so as to ensure that the buoyancy provided by the floating components can meet the suspension requirement of the water pump 20, and the floating components 50 can be one or two according to the suspension requirement of the water pump 20. Specifically, the floating assembly 50 includes a connecting frame 501 and two floating members symmetrically disposed on the connecting frame 501, the floating members are air bags 502 (of course, buoyancy blocks or buoyancy plates may be selected), the connecting frame 501 includes two fixing frames fastened together, and fastening bolts 503 are disposed on the fixing frames in a penetrating manner. During installation, the two fixing frames are sleeved on the fixing frame 401 with proper height, the two fixing frames are buckled together, then the fixing frames are installed on the fixing frame 401 by screwing the fixing bolts 503, the installation and disassembly are simple and convenient, the installation requirements of the floating assembly 50 on the fixing frames 401 with different heights are effectively met, the water suction pump 20 is ensured to be in a suspension state, the water suction pump 20 is prevented from sinking to the river bottom due to the fact that a large amount of sediment is pumped in, and the probability that the water suction pump 20 is blocked by the sediment is further reduced.
As shown in fig. 1, the drain pipe 30 is provided with a flow detection unit 60 and a flow regulating valve 70 at intervals in a horizontal section, the flow detection unit 60 is used for detecting the outlet water flow of the drain pipe 30, and the outlet water flow can be regulated by the flow regulating valve 70.
As shown in fig. 11, the flow detection unit 60 includes a branch pipe 601 vertically arranged on the drain pipe 30 and a floating rod 602 vertically inserted in the branch pipe 601, a first connecting end (i.e. bottom end) of the floating rod 602 is provided with a floating plate 603 capable of floating up and down in the inner cavity of the branch pipe 601, a second connecting end (i.e. top end) of the floating rod 602 extends out of the top wall of the branch pipe 601, a reset piece 604 (i.e. a compression spring) is sleeved on the floating rod 602 positioned in the branch pipe 601, and flow graduation marks are arranged on the floating rod 602; the drain pipe 30 corresponding to the branch pipe 601 is provided with water permeable holes, so that water can enter the branch pipe 601. When the water suction pump 20 works, river water flows into a downstream ecological area through the water discharge pipe 30, water in the water discharge pipe 30 flows into the branch pipe 601 through the water permeable holes when flowing through the branch pipe 601, the water pushes the floating plate 603 to move upwards, the floating rod 602 is further moved upwards, and the water discharge flow of the water discharge pipe 30 is determined by observing flow scale marks on the floating rod 602; when the water pressure becomes smaller, the pressure applied to the compression spring becomes smaller, and the floating rod is retracted into the inner tube for a certain length.
As shown in fig. 1 and 4 to 5, the drain pipe 30 is provided with fixing parts 80 (the fixing parts 80 may be one, two, or more) at intervals in a horizontal section, and the fixing parts 80 include a hinge seat 801 provided at the bottom of the drain pipe 30, a support bar 802 rotatably provided on the hinge seat 801, and a plug bar 803 screwed on the support bar 802. Specifically, the hinge base 801 includes a pair of ear plates, and a pin shaft penetrating the ear plates, and the top of the support bar 802 is penetrated on the pin shaft and is in running fit with the pin shaft, so that the support bar 802 can rotate vertically; the supporting rod 802 is a threaded rod, the inserted rod 803 (with an internal threaded hole) is screwed on the threaded rod, and the total length of the supporting rod 802 and the inserted rod 803 can be adjusted by adjusting the length of the supporting rod 802 screwed into the internal threaded hole so as to meet the fixing requirement of the drain pipe 30 and the recycling requirement of the inserted rod 803; the bottom of the insertion rod 803 has a conical structure with a pointed end to facilitate insertion into the river bed to secure the drain pipe 30.
As shown in fig. 1, a collecting box F is disposed at the bottom of the drain pipe 30 near the fixing portion 80, under the idle condition, the supporting rod 802 is screwed into the internal threaded hole of the inserting rod 803, so that the length of the fixing portion 80 is shortened as a whole, then the inserting rod 803 is rotated, the tip of the inserting rod 803 is aligned with the through hole of the collecting box F, and finally the inserting rod 803 is screwed outwards, so that the tip of the inserting rod 803 extends into the collecting box F, the inserting rod 803 is prevented from swinging under the idle state, the tip of the inserting rod 803 is prevented from hurting people, and the safety is improved.
As shown in fig. 6, a filter member is disposed at the water inlet of the water inlet pipe 10, and the filter member includes a hemispherical filter layer M (the filter layer M may be a filter plate or a filter net with filter holes, or may be filter cotton, preferably a filter plate with filter holes), so as to prevent large impurities in the water from entering the water pump 20; the edge of the filter layer M is connected with a connecting pipe which is a threaded pipe, the water inlet pipe 10 is provided with external threads, the threaded pipe is connected with the water inlet pipe 10 in a threaded manner, and the filter layer M is easy and convenient to assemble and disassemble and convenient to clean.
As shown in fig. 6, 7a and 7b, a cleaning assembly 90 is arranged in the water inlet pipe 10, the cleaning assembly 90 comprises a rotating shaft 901 which is rotatably arranged in the water inlet pipe 10 through a supporting connecting part, a drain pan 902 with through holes (the through holes are of a funnel-shaped structure with large lower part and small upper part) is penetrated at the upper connecting end of the rotating shaft 901, a plurality of drain holes communicated with the through holes are uniformly arranged on the top surface of the drain pan 902 at intervals along the circumferential direction of the drain pan 902, water outlet heads 903 are communicated with each drain hole, the water outlet heads 903 are distributed at equal intervals, the directions of the water outlet heads 903 are different, and then the reaction force of the drain pan 902 is given when water is discharged, so that the drain pan 902 rotates in the water inlet pipe 10;
the cleaning piece (namely the arc cleaning plate 904) with an arc structure is arranged on the rotating shaft 901 in a penetrating way, and is arranged in a clearance way with the inner side surface of the filter layer M, and the arc cleaning plate 904 can clean tiny impurities (such as microalgae attached to the water body due to long-time placement) on the filter layer M in the process that the drain pan 902 drives the rotating shaft 901 to rotate, so that unsmooth water inlet caused by accumulation of the tiny impurities on the filter layer M is effectively avoided;
wherein the cleaning assembly 90 has a first state in which the suction pump 20 is in an idle state (i.e., when not in operation) to cause the cleaning assembly 90 to rest; in the second state, the water body pumped by the suction force generated by the water suction pump 20 enters the water inlet pipe 10 from the water outlet head 903, and the reaction force of the water body is applied to the drain pan 902, so that the drain pan 902 drives the arc-shaped cleaning plate 904 to rotate through the rotating shaft 901 so as to clean sundries on the inner side surface of the filter layer M.
As shown in fig. 8, the support connection portion includes a support frame 905 (a cross, a horizontal rod, or a three-fork rod) fixedly connected to the pipe orifice of the water inlet pipe 10, and a bearing 906 coaxially arranged with the rotating shaft 901 is sealingly disposed at the center of the support frame 905, and the rotating shaft 901 passes through an inner hole of the bearing 906. The support connection not only ensures the stability of the cleaning assembly 90, but also ensures that the shaft 901 rotates relative to the water inlet pipe 10.
Of course, the support connection part may also have a structure as shown in fig. 9 to 10, specifically: the pivot 901 wears to establish on the fixed axle sleeve 909 of support frame 905 (the support frame is the horizon bar) central point department, and the lateral surface on the support frame 905 is provided with spring positioning bead 910, and the guide way 101 that matches with spring positioning bead 910 is seted up to the medial surface of inlet tube 10 correspondingly, makes spring positioning bead 910 rotate in guide way 101.
As shown in fig. 6, the lower connecting end of the rotating shaft 901 passes through the filtering layer M outwards, and the lower connecting end thereof is provided with a sundry cutting part, the sundry cutting part comprises a connecting sleeve 907 arranged at the lower connecting end and two cutting knives 908 symmetrically arranged on the connecting sleeve 907, and the cutting knives 908 comprise a horizontal cutting section fixedly connected to the connecting sleeve 907 and a vertical cutting section arranged at the other end of the horizontal cutting section (i.e. the cutting knives 908 are in an L-shaped structure). When pumping water, because the water outlet head 903 is distributed along the circumferential direction of the drain pan 902 at intervals, and an included angle exists between the water outlet head 903 and the through hole of the drain pan 902, the water body from the water outlet head 903 gives the drain pan 902 a reverse acting force, the drain pan 902 is forced to rotate, the rotating shaft 901 and the drain pan 902 rotate together, the rotating shaft 901 drives the cutting knife 908 to rotate along with the rotating shaft 901 through the connecting sleeve 907 at the bottom, the cutting knife 908 pulverizes garbage, weeds and the like in the river in the rotating process, the filter layer M is prevented from being blocked by sundries due to the suction of the water pump 20, and normal operation of the discharging operation is ensured.
The method for discharging the ecological flow discharging device comprises the following steps:
two connecting frames of the connecting frame 501 are sleeved on the fixing frame 401 and clamped together, the connecting frames are installed on the fixing frame 401 by fastening bolts 503, and the air bag 502 is inflated; then placing the ecological flow downer into a water storage area of a river, and suspending the water suction pump 20 in water under the buoyancy action of the air bag 502;
the horizontal section of the drain pipe 30 is positioned on the river levee or the ground of the water storage area, the inserted bar 803 is rotated, the supporting bar 802 is screwed into the internal threaded hole of the inserted bar 803, and the total length of the inserted bar 803 and the supporting bar 802 is adjusted so that the inserted bar 803 falls off from the collecting box F; the insert 803 and the support bar 802 are integrally rotated, the total length of the insert 803 and the support bar 802 is adjusted, the insert 803 is inserted into the ground, and the water outlet end of the drain pipe 30 is fixed;
starting the water suction pump 20 (which can be controlled manually or by a PLC), enabling river water in the water storage area to permeate through the filter layer M, enabling the river water to enter the water inlet pipe 10 through the water outlet head 903 on the water discharge disc 902, and discharging the river water to the downstream through the water discharge pipe 30 under the action of the water suction pump 20;
in the water pumping process, the attractive force generated by the water pump 20 can enable the river water to permeate the filtering area, and the filter layer M can filter the river water to reduce the amount of sundries entering the water pump 20; the filtered river water is discharged from the water outlet head 903 after passing through the through hole of the water outlet disk 902 under the action of attraction force, and because the angle difference exists between the water outlet head 903 and the water outlet disk 902, the river water is reversely acted on the water outlet disk 902 after exiting from the water outlet head 903, so that the water outlet disk 902 rotates in the water inlet pipe 10, the rotating shaft 901 drives the arc cleaning plate 904 and the cutting knife 908 to rotate, the arc cleaning plate 904 effectively cleans the inner side surface of the filter layer M, and the fluidness of the filter layer M is ensured;
the cutting knife 908 cuts off or even pulverizes sundries (such as garbage, aquatic plants, etc.) in river water in the rotation process, so as to protect the water inlet of the water inlet pipe 10, further prevent the sundries from being attached to the filter layer M due to attractive force, ensure the circulation of the water inlet and ensure normal water drainage;
during the water pumping process, when river water flows through the flow detection unit 60, part of water in the drain pipe 30 enters the branch pipe 601 through the water permeable holes, and the floating plate 603 and the floating rod 602 are pushed to move upwards under the action of water pressure; the change of the water pressure can enable the floating rod 602 to float up and down, so that the flow can be observed visually, and the flow can be regulated and specific flow data can be mastered by combining the floating rod with the flow regulating valve 70.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in fig. 1), and if the specific posture is changed, the directional indicators are correspondingly changed. In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Claims (7)
1. An ecological flow discharging device for river blocking engineering comprises a water inlet pipe, a water suction pump and a water discharge pipe which are sequentially communicated; the method is characterized in that: the ecological flow lowering device also comprises
A mounting part arranged at the water inlet end part of the drain pipe;
the floating assembly is arranged on the mounting part and enables the water suction pump to be suspended in the water storage area;
the water inlet of inlet tube department is provided with the filter, is provided with in the inlet tube and is used for the clearance filter's clearance subassembly, clearance subassembly includes
The rotating shaft is provided with an upper connecting end;
the water draining piece is arranged at the upper connecting end and positioned in the water inlet pipe, the water draining piece is provided with through holes for water to flow through and drain holes which are distributed at equal intervals along the circumference of the water draining piece and communicated with the through holes,
the water outlet heads are respectively communicated with and arranged at each water outlet hole, so that the water outlet heads are distributed at equal intervals, the directions of the water outlet heads are different, and then the water outlet members react with each other when water is discharged, so that the water outlet members rotate in the water inlet pipe;
the cleaning piece is sleeved on the rotating shaft and is in clearance fit with the filtering piece; and
the support connecting part is used for rotationally connecting the rotating shaft with the inner wall of the water inlet pipe;
the cleaning assembly is provided with a first state and a second state, and in the first state, the water suction pump is in an idle state to enable the cleaning assembly to be static; in the second state, the water pumped by the water pump to generate suction force enters the water inlet pipe from the water outlet head, and the reaction force of the water body is applied to the water draining member, so that the water draining member drives the cleaning member to rotate through the rotating shaft so as to clean sundries on the inner side surface of the filtering member;
the lower connecting end of the rotating shaft penetrates out of the filtering piece outwards, and the lower connecting end is provided with a sundry cutting part which comprises a connecting sleeve arranged at the lower connecting end and a cutting knife arranged on the connecting sleeve;
the cutting knife comprises a horizontal cutting section fixedly connected to the connecting sleeve and a vertical cutting section arranged at the other end part of the horizontal cutting section;
the filter piece comprises a filter layer with a hemispherical structure and a connecting pipe arranged on the filter layer, and the connecting pipe is in threaded connection with the water inlet pipe; the cleaning piece is an arc-shaped cleaning plate matched with the filter layer.
2. The ecological flow lowering device for river diversion projects according to claim 1, wherein: the drain pipe is provided with a flow detection unit and a flow regulating valve.
3. The ecological flow lowering device for river diversion projects according to claim 2, wherein: the flow detection unit comprises
The branch pipe is arranged on the drain pipe, and a water permeable hole is formed in the drain pipe at the position corresponding to the branch pipe;
a floating plate disposed in the branch pipe;
the floating rod is provided with a first connecting end and a second connecting end, the first connecting end is connected with the floating plate, and the second connecting end extends out of the branch pipe;
a reset piece sleeved on the floating rod in the branch pipe;
the water in the drain pipe enters the branch pipe through the water permeable hole and pushes the floating plate to move, so that the floating rod extends outwards.
4. The ecological flow lowering device for river diversion projects according to claim 1, wherein: the drain pipe is provided with a fixing part and a collecting box for accommodating the fixing part at intervals, the fixing part comprises a hinge seat arranged at the bottom of the drain pipe and a support rod rotatably arranged on the hinge seat, and the support rod is sleeved with a plunger rod with a tip.
5. The ecological flow lowering device for river diversion projects according to claim 1, wherein: the mounting part comprises a plurality of fixing frames sleeved on the drain pipe at intervals;
the floating component comprises a connecting frame arranged on the fixing frame and a floating piece arranged on the connecting frame, and the floating piece is a buoyancy block, a buoyancy plate or an air bag.
6. The ecological flow lowering device for river diversion projects according to claim 1, wherein: the support connection part comprises
The support frame is arranged at the water inlet of the water inlet pipe; and
the bearing is arranged at the central position of the supporting frame in a sealing way, and the rotating shaft penetrates through the bearing.
7. An ecological flow lowering method is characterized in that: use of an ecological flow downloading device according to any one of claims 1-6, comprising the following:
installing the floating assembly on the installation part of the drain pipe, then placing the ecological flow downward device into a water storage area of a river, and suspending the water suction pump in the water storage area under the action of the buoyancy of the floating assembly; then, the fixing part on the drain pipe is inserted into the ground to fix the water outlet end of the drain pipe; finally, starting the water suction pump, observing the water outlet flow of the drain pipe through the flow detection unit, regulating the flow through the flow regulating valve, and discharging the river water in the water storage area to a downstream river channel by the water suction pump.
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| CN113186960A (en) * | 2021-05-08 | 2021-07-30 | 安徽元昌建设工程有限公司 | Floated pit foundation drainage device for construction |
| CN114541561B (en) * | 2022-03-25 | 2023-06-02 | 中铁二院工程集团有限责任公司 | High-efficiency integrated prefabricated drainage pump station and drainage method thereof |
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