CN209941637U - Float-type duckweed drainage clearing device - Google Patents

Float-type duckweed drainage clearing device Download PDF

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Publication number
CN209941637U
CN209941637U CN201920021388.1U CN201920021388U CN209941637U CN 209941637 U CN209941637 U CN 209941637U CN 201920021388 U CN201920021388 U CN 201920021388U CN 209941637 U CN209941637 U CN 209941637U
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duckweed
float
hydrophobic
water
buoy
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左东升
马程
陈宁
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Yingpu Beijing Environmental Technology Co Ltd
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Yingpu Beijing Environmental Technology Co Ltd
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Abstract

The utility model discloses a float-type duckweed hydrophobic cleaning device, the device include flotation pontoon part, duckweed collector, duckweed pipeline, pump, duckweed hydrophobic separator. The float bowl part is a hollow cylinder, the upper end of the float bowl part is provided with a water injection pipe, and the lower end of the float bowl part is provided with a water drainage pipe, so that the immersion liquid level depth and the depth installation height for removing duckweeds of the float bowl part are adjusted; the duckweed collector consists of an inflow collecting tank welded with the periphery of the buoy part and an inner box body positioned in the center of the buoy part; the duckweed conveying pipeline connects the inflow collecting tank with the inner box body and the pumping pump; the pumping pump is used for conveying the collected duckweeds to a duckweed hydrophobic separator for dehydration treatment; the device is provided with a traction moving rope and can move along the water surface in a portable way. The device can be installed in a large, medium and small module mode, and is low in equipment processing cost and convenient to install and maintain. The device can be installed singly or in a cluster mode in a hydraulic facility and mechanically works, and the clearing efficiency of the duckweeds with large area is improved.

Description

Float-type duckweed drainage clearing device
Technical Field
The utility model relates to a water body treatment field, especially at natural or artificial water such as river course, irrigation canals and ditches, lake and the like and the view or the clearing device of pollutants such as algae, duckweed in the hydraulic facilities of sewage, water purification treatment plant.
Background
In recent years, because a large amount of domestic sewage and industrial wastewater are unreasonably discharged into natural or semi-natural water bodies such as rivers, ditches, lakes and the like, the self-purification capacity of the water bodies is greatly reduced, the rapid accumulation of nutrient elements such as nitrogen, phosphorus and the like is caused, nutrient conditions such as nitrogen, phosphorus and the like are provided for the growth of duckweed, and meanwhile, under the action of factors such as slow flow velocity, illumination, water temperature and the like, a large amount of floating objects such as duckweed and the like are easily accumulated on the water surface. This phenomenon also easily occurs in the hydraulic facilities of ecological landscape, sewage and clean water treatment plants.
Duckweed grows very rapidly under appropriate conditions, the margin of the frond of a piece of duckweed can propagate by budding, and a small piece of leaf can grow a new leaf on the margin within 24 hours. Even if the seeds are fished clean in the first year, the seeds are still remained in the water body, and the seeds can still be bred under proper conditions in the second year. The algae and duckweed are difficult to effectively remove, production and artificial senses are affected, and particularly when a large amount of duckweed is gathered or erupted (eutrophication) in the water body and even covers the whole or partial area of the water body, the duckweed can prevent the water body from reoxygenating and submerged plants from receiving light, so that the submerged plants die. When the duckweed forms population dominance, the water quality of the water body is gradually reduced. In severe cases, the water body is lack of oxygen to affect the aquatic ecosystem and destroy the aquatic ecological balance, thus endangering the health of other organisms and human beings.
At present, the main methods for removing the duckweed comprise manual salvaging, chemical agent or biological agent adding, biological in-situ remediation and the like. Wherein:
manual fishing: the uninterrupted manual salvage has low efficiency and is not thorough and can not be eradicated;
adding chemical agents: the commonly used chemical agents mainly comprise copper sulfate, permanganate, aluminum sulfate, ferrate composite agent, liquid chlorine and ClO2、O3And H2O2And the like. The utilization of chemical preparations is undoubtedly an effective way with remarkable and quick effect, but the method is only a palliative method and must be used with caution. Firstly, chemical agents often have toxic and side effects, secondary pollution is caused, the influence on water organisms is great, and the riverway using the chemical agents is not beneficial to biological recovery; secondly, only chemical agents can be usedThe duckweed can be controlled in a short time, and the duckweed cannot be completely killed, is dead and ash to reburn after a while, sometimes even becomes hard, so that the duckweed water body is a vicious circle. The chemical method for treating river channel is ' Yinzi 40489and ' Zhi Yan Jie '. The use of chemical methods in river management has been limited by the country.
Adding a biological agent: the microorganism which is selected from natural environment and has the effect of inhibiting the growth of the duckweed is domesticated and cultured, is put into water and then quickly spreads to the cell surface of the duckweed and permeates into the cell to destroy functional protein groups of the cell, so that the synthesis of cell protein is inhibited, the normal metabolism of the cell is stopped, and the growth of the duckweed is finally controlled. However, the method is also controversial to ecology, affects the survival of other species and is not suitable for long-term use.
Biological in-situ remediation: by means of an ecological food chain, grass carp, crucian and the like are introduced, duckweed is used as feed of the grass carp, crucian and the like, and water ecological balance is restored. However, the method has slow effect, and temporary fry throwing or adult fish survival is easily influenced by the water quality of the existing water body.
Therefore, the development of a float-type duckweed hydrophobic removal device becomes an urgent need for the existing water body treatment and the restoration of the ecological balance of the water body.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems in the prior art, the utility model provides a float-type duckweed hydrophobic cleaning device and method.
According to an aspect of the utility model, a hydrophobic clearing device of float formula duckweed is proposed, the device includes: the device comprises a buoy component, a duckweed collector, a duckweed conveying pipeline, a pumping pump and a duckweed hydrophobic separator; the float bowl part is a hollow cylinder, the upper end of the float bowl part is provided with a water injection pipe, and the lower end of the float bowl part is provided with a water drainage pipe, so that the immersion liquid level depth and the depth installation height for removing duckweeds of the float bowl part are adjusted; the duckweed collector consists of an inflow collecting tank welded with the periphery of the buoy part and an inner box body positioned in the center of the buoy part; the duckweed conveying pipeline connects the inflow collecting tank with the inner box body and the pumping pump; the pumping pump is used for conveying the collected duckweeds to a duckweed hydrophobic separator for dehydration treatment; the buoy part is provided with a traction moving rope and can move along the water surface in a portable way.
According to a third aspect of the present invention, the float-type duckweed hydrophobic removing device of the present invention is characterized in that the float component is a hollow cylinder shaped like a concentric ring, not limited to a cylinder, a long (square) cube or other solid (in this example, a cylinder), the inner ring cross-sectional diameter (or side length) is 50-150 cm, the outer ring cross-sectional diameter (or side length) is 90-200 cm, and the cylinder height is 40-80 cm; the space region enclosed by the interface between the inner ring and the outer ring is three-dimensional closed, and the space region enclosed by the upper section and the lower section of the inner ring is three-dimensional hollow; the upper end part of the outer ring of the float bowl part is provided with a water injection pipe (used as an immersion liquid level regulator of the float bowl part), and the lower end part of the outer ring of the float bowl part is provided with a drain pipe and a drain valve. The two sides of the upper end part of the water repellent cleaning device are oppositely provided with traction moving ropes, so that the water repellent cleaning device can be conveniently and freely moved in the horizontal direction in a hydraulic facility.
According to the utility model discloses a fourth aspect the utility model discloses a hydrophobic clearing device of float-type duckweed, its duckweed collector comprises inflow collecting vat, interior box, and wherein the inflow collecting vat is installed along the well upper ring border of flotation pontoon part, and the last oral area adopts zigzag triangle weir crest, the certain longitudinal separation in its upper portion, be equipped with the rain-proof cover (thereby do not receive weather interference operation such as rainfall), and inflow collecting vat, rain-proof cover all weld with the flotation pontoon part integratively. The inner box body is similar to and concentric with the buoy component in shape, a closed column is also adopted, the upper top of the closed column is level with or slightly higher than the upper top of the buoy component by about 5-30 cm, and the lower end of the closed column is a cone. The outer side of the inner box body is connected and fastened with the inner side of the float bowl part by a plurality of sets of radial supporting pieces.
According to the utility model discloses a fifth aspect the utility model discloses a hydrophobic clearing device of float formula duckweed, its duckweed pipeline can divide into four kinds according to the function and manage, connect the branch pipe A of lateral part under the bottom to the interior box of self-inflow collecting vat, and the short branch pipe B of centrum bottom is managed under the interior box in the connection, and one end adopts the ferrule to be connected (can dismantle), the branch pipe C of pump inlet is connected to the other end with B, connects the branch pipe D of pump outlet. A, B, which is hard pipe, is made of the same material as the buoy component and the duckweed collector, C, D, which is plastic hose or fire hose (wherein C is reserved for its length according to the offshore transportation distance in the hydraulic facility); a control valve can be arranged on the branch pipe A according to the requirement; the diameter of the duckweed conveying pipeline is 32-100 mm.
According to a sixth aspect of the present invention, in the duckweed hydrophobic cleaning device of the present invention, the duckweed hydrophobic separator utilizes the principles of gravity, buoyancy, mechanical extrusion, etc. to separate duckweeds from water, the duckweeds interception grid is arranged in the middle of the interior, the upper part is a duckweeds collection area, and the lower part is a water collection area and a water discharge pipeline;
by using the device and the method according to the invention, advantages can be obtained at least in that:
the utility model discloses can be in hydraulic facilities single or cluster installation and mechanized work, main part such as many sets of flotation pontoon parts, duckweed collector of installation promptly in a hydraulic facilities, adopt one-to-one or many-to-one combination with pump, the hydrophobic separator of duckweed to implement, near and improve the efficiency of cleaing away of large tracts of land duckweed.
Description of the drawings:
fig. 1, 2 and 3 show schematic views of a float-type duckweed hydrophobic cleaning device according to a preferred embodiment of the invention.
Description of reference numerals:
1: a float member; 2: a duckweed collector; 3: a duckweed delivery conduit; 4: a pump; 5: a duckweed hydrophobic separator; 11: a water injection pipe; 12: a drain pipe; 21: an inflow collection tank; 22: an inner box body; 211: a rain shield; 61: a support member; 62: a hauling rope; 7: a hydraulic facility; 31-34: dividing the duckweed conveying pipeline into pipes; 311: a control valve;
Detailed Description
The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, and it is to be understood that the embodiments of the present invention are merely exemplary, and that the present invention may be embodied in any other suitable manner in accordance with the teachings of the present disclosure. The terms and configurations used hereinafter may be substituted in other equivalent manners. The scope of the claims of the present invention is not limited to the specific examples in the embodiments in the afternoon.
The present disclosure proposes a float-type duckweed hydrophobic removal device. The apparatus may include:
comprises a float bowl part, a duckweed collector, a duckweed conveying pipeline, a pumping pump and a duckweed hydrophobic separator; the float bowl part is a hollow cylinder, the upper end of the float bowl part is provided with a water injection pipe, and the lower end of the float bowl part is provided with a water drainage pipe, so that the immersion liquid level depth and the depth installation height for removing duckweeds of the float bowl part are adjusted; the duckweed collector consists of an inflow collecting tank welded with the periphery of the buoy part and arranged at the periphery of the buoy part and an inner box body positioned in the center of the buoy part; the inflow collecting tank is connected with the inner box body and the pumping pump through a duckweed conveying pipeline; the pumping pump sends the collected duckweeds to a duckweed hydrophobic separator for dehydration treatment; the float bowl part is provided with a traction moving rope which can move along the water surface in a portable way.
Optionally, in other embodiments according to the present invention, the float bowl component is a hollow cylinder shaped like a concentric ring, not limited to a cylinder, a long (square) cube or other solid (cylinder in this example), the inner ring cross-sectional diameter (or side length) is 50-150 cm, the outer ring cross-sectional diameter (or side length) is 90-200 cm, the cylinder height is 40-80 cm; the space region enclosed by the interface between the inner ring and the outer ring is three-dimensional closed, and the space region enclosed by the upper section and the lower section of the inner ring is three-dimensional hollow; the upper end part of the outer ring of the float bowl part is provided with a water injection pipe (used as an immersion liquid level regulator of the float bowl part), and the lower end part of the outer ring of the float bowl part is provided with a drain pipe and a drain valve. The two sides of the upper end part of the water repellent cleaning device are oppositely provided with traction moving ropes, so that the water repellent cleaning device can be conveniently and freely moved in the horizontal direction in a hydraulic facility.
The duckweed collector consists of an inflow collecting tank and an inner box body, wherein the inflow collecting tank is arranged along the periphery of the middle upper ring of the buoy component, the upper opening part adopts a sawtooth-shaped triangular weir crest, a rain shield is arranged at a certain longitudinal distance above the upper opening part (so that the operation is not disturbed by weather such as rainfall), and the inflow collecting tank and the rain shield are welded with the buoy component into a whole. The inner box body is similar to and concentric with the buoy component in shape, a closed cylinder is also adopted, the upper top of the closed cylinder is flush with or slightly higher than the upper top of the buoy component by about 5-30 cm, and the lower end of the closed cylinder is a cone. The outer side of the inner box body is connected and fastened with the inner side of the float bowl part by a plurality of sets of radial supporting pieces.
The duckweed conveying pipeline can be divided into four branch pipes according to functions, the branch pipe A from the bottom of the inflow collecting tank to the lower side part of the inner box body is connected, the short branch pipe B at the bottom of the lower cone body of the inner box body is connected, the branch pipe C with one end connected with the pipe hoop (detachable) and the other end connected with the inlet of the pumping pump is connected with the branch pipe D of the outlet of the pumping pump. A, B, which is hard pipe, is made of the same material as the buoy component and the duckweed collector, C, D, which is plastic hose or fire hose (wherein C is reserved for its length according to the offshore transportation distance in the hydraulic facility); a control valve can be arranged on the branch pipe A according to the requirement; the diameter of the duckweed conveying pipeline is 32-100 mm.
The duckweed hydrophobic separator separates duckweeds from water by utilizing principles of gravity, buoyancy, mechanical extrusion and the like, a duckweed interception grid is arranged in the middle of the duckweed hydrophobic separator, a duckweed collecting area is arranged at the upper part, and a water collecting area and a water discharging pipeline are arranged at the lower part;
by utilizing the device of the utility model, a plurality of sets of float bowl parts, duckweed collectors and other main parts are installed in a single or cluster hydraulic facility, and are implemented by adopting one-to-one or many-to-one combination with the pumping pump and the duckweed hydrophobic separator, so that the clearing efficiency of large-area duckweeds is improved.
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In different examples, the same reference numbers refer to the same or similar components, or to the same or similar steps.
Example 1:
in the inland river of a certain city in south, the width of the river channel is about 15m, the average water depth is 1.15m, 2 rubber dams are arranged in the urban area for flowing through, and the inflow mainly refers to the inflow of upstream branches and the outflow of the urban sewage treatment plant (the discharge standard is first-grade A). Due to poor river water fluidity, the phenomenon of black odor is easily caused by excessive growth of floating organisms such as algae, duckweed and the like in summer due to high nitrogen and phosphorus nutrient elements discharged by sewage plants in the inflow water. Therefore, a four-row floating type duckweed hydrophobic cleaning device is arranged at a plurality of river duckweeds, so that algae and duckweeds in a water body can be quickly removed.
Referring to the figures 1 and 3 of the drawings,
the float-type duckweed hydrophobic cleaning device comprises: the device comprises a buoy component 1, a duckweed collector 2, a duckweed conveying pipeline 3, a pumping pump 4 and a duckweed hydrophobic separator 5; in order to accelerate the removal speed of duckweed, 4 sets of float bowl parts 1 and duckweed collectors 2 are arranged in the device and are connected with 1 set of pumping pumps 4 and a duckweed hydrophobic separator 5 through duckweed conveying pipelines 3.
The buoy component 1 used in the project is a hollow cylinder of concentric rings, the diameter of the section of an inner ring is 150cm, the diameter of the section of an outer ring is 200cm, and the height of the cylinder is 75 cm. The space region enclosed by the interface between the inner ring and the outer ring is a three-dimensional closed space (shown as the shaded region in the figure), and the space region enclosed by the upper section and the lower section of the inner ring is a three-dimensional hollow space. The upper end part of the outer ring of the float bowl part 1 is provided with a DN25 water injection pipe 11 (as an immersion liquid level regulator of the float bowl part 1), the lower end part of the outer ring of the float bowl part 1 is provided with a DN25 water discharge pipe 12, and a DN25 water discharge valve 13 is arranged on the DN25 water discharge pipe. Two sides of the upper end part of the buoy component 1 are oppositely provided with steel wire traction moving ropes 62, so that the duckweed hydrophobic clearing device can be conveniently pulled on two sides of a river channel.
The duckweed collector 2 used in the project is formed by an inflow collecting groove 21 and inner box bodies 22 and 21 which are arranged along the circumference of the upper middle part of the buoy part 1, the upper opening part adopts a saw-tooth-shaped triangular weir crest, a rain shield 211 is arranged at a certain longitudinal distance above the upper opening part (so that the operation is not disturbed by the weather such as rainfall, and the like), and the inflow collecting groove 21 and the inner box bodies 21 are welded with the buoy part 1 into a whole. The inner box body 22 is similar to and concentric with the buoy component 1 in shape, a closed column is adopted, the upper top of the inner box body 22 is flush with or slightly higher than the upper top of the buoy component 1 by about 20cm, the lower end of the inner box body is a cone, and the cone angle is 60 degrees. The outer side part of 22 and the inner side part of 1 are connected and fastened by a plurality of radial sets of supporting pieces 61.
The duckweed conveying pipeline 3 used in the project comprises branch pipes 31-34, namely: a branch pipe 31 connected from the bottom of the pump 21 to the lower side of the pump 22, a short branch pipe 32 connected with the bottom of the lower cone of the pump 22, a branch pipe 33 with one end connected (detachable) with the branch pipe 321 and the other end connected with the inlet of the pump 4, and a branch pipe 34 connected with the outlet of the pump 4. Is divided intoThe pipes 31 and 32 are hard pipes and are made of the same material as the buoy part 1 and the duckweed collector 2; the branch pipes 33 and 34 can adopt plastic hoses (with the length of 25m) and the diameter of the duckweed conveying pipeline 3 can adoptA DN50 control valve 311 is provided in the branch pipe 31.
The pumping pump 4 used in this item is a 1-stage diaphragm pump or a self-priming pump (flow Q is 50 m)3The delivery lift is 10m), the device is driven by a 220V power supply and placed beside a river channel; the pump can convey duckweeds in the river course to the duckweed hydrophobic separator 5.
The duckweed hydrophobic separator 5 used in the project is a stainless steel grating sieve, a duckweed interception grid is arranged in the middle of the duckweed hydrophobic separator, a duckweed collecting region is arranged at the upper part of the duckweed hydrophobic separator, a water collecting region and a water discharging pipeline are arranged at the lower part of the duckweed hydrophobic separator, duckweeds and water can be drained, the water without the duckweeds flows back into a river channel, and the duckweeds are treated uniformly.
The equipment has the following working procedures:
adjusting the liquid level of the buoy component: the main components such as the float bowl component 1, the duckweed collector 2 and the like are placed in an operation area needing to remove duckweeds in a river channel, a water discharging valve 13 on a water discharging pipe 12 of the float bowl component 1 is ensured to be closed, a certain amount of water is injected into a water injecting pipe 11 of the float bowl component 1, so that the float bowl component 1 is slowly descended under the gravity of water, and when an upper weir port of an inflow collecting tank 21 is slightly lower than the liquid level of the river channel by about 10mm, water injection is stopped.
Pumping duckweed: and opening the control valve 311 (which can be normally opened) on the branch pipe 31, and starting the pumping pump 4, so that the duckweeds in the shallow layer of the river channel are continuously sucked out and enter the duckweed hydrophobic separator 5 for dehydration and separation.
Daily inspection and maintenance: the water discharge valve 13 on the water discharge pipe 12 is opened and the pumping pump 4 is started, so that the water stored in the buoy part 1 is emptied and discharged, and after the buoy part 1 and the duckweed collector 2 float up due to the buoyancy of the water, the inspection and maintenance work can be performed at this time.
According to the embodiment, the float-type duckweed hydrophobic clearing device is arranged, so that the duckweeds can be installed in a hydraulic facility in a single or cluster mode and can be mechanically worked, and the clearing efficiency of the duckweeds with large area is improved.
Example 2:
the landscape lake in a certain northern district has the area of about 5 ten thousand meters2The average water depth is 1.5m, water and the river channel are recycled through a circulating pump, and the water supplement is the effluent of a nearby municipal sewage treatment plant (the discharge standard is first-class A). Due to poor water body fluidity, the phenomenon of black odor is easily caused by excessive growth of floating organisms such as algae, duckweed and the like in summer when water enters water due to high nitrogen and phosphorus nutrient elements discharged by sewage plants. Therefore, 1 float-type duckweed hydrophobic cleaning device is installed and used movably according to the growth condition of the duckweeds on the lake surface, and algae and duckweeds in the water body can be removed quickly.
As shown with reference to figures 2 and 3,
the float-type duckweed hydrophobic cleaning device comprises: the device comprises a buoy component 1, a duckweed collector 2, a duckweed conveying pipeline 3, a pumping pump 4 and a duckweed hydrophobic separator 5;
the buoy component 1 used in the project is a hollow cylinder of concentric rings, the diameter of the section of an inner ring is 120cm, the diameter of the section of an outer ring is 180cm, and the height of the cylinder is 60 cm. The space region enclosed by the interface between the inner ring and the outer ring is a three-dimensional closed space (shown as the shaded region in the figure), and the space region enclosed by the upper section and the lower section of the inner ring is a three-dimensional hollow space. The upper end part of the outer ring of the float bowl part 1 is provided with a DN25 water injection pipe 11 (as an immersion liquid level regulator of the float bowl part 1), the lower end part of the outer ring of the float bowl part 1 is provided with a DN25 water discharge pipe 12, and a DN25 water discharge valve 13 is arranged on the DN25 water discharge pipe. The two sides of the upper end of the buoy component 1 are oppositely provided with steel wire traction moving ropes 62 which move through a traction boat.
The duckweed collector 2 used in the project is formed by an inflow collecting groove 21 and inner box bodies 22 and 21 which are arranged along the circumference of the upper middle part of the buoy part 1, the upper opening part adopts a saw-tooth-shaped triangular weir crest, a rain shield 211 is arranged at a certain longitudinal distance above the upper opening part (so that the operation is not disturbed by the weather such as rainfall, and the like), and the inflow collecting groove 21 and the inner box bodies 21 are welded with the buoy part 1 into a whole. The inner box body 22 is similar to and concentric with the buoy component 1 in shape, a closed column is adopted, the upper top of the inner box body 22 is flush with or slightly higher than the upper top of the buoy component 1 by about 15cm, the lower end of the inner box body is a cone, and the cone angle is 60 degrees. The outer side part of 22 and the inner side part of 1 are connected and fastened by a plurality of radial sets of supporting pieces 61.
The duckweed conveying pipeline 3 used in the project comprises branch pipes 31-34, namely: a branch pipe 31 connected from the bottom of the pump 21 to the lower side of the pump 22, a short branch pipe 32 connected with the bottom of the lower cone of the pump 22, a branch pipe 33 with one end connected (detachable) with the branch pipe 321 and the other end connected with the inlet of the pump 4, and a branch pipe 34 connected with the outlet of the pump 4. The branch pipes 31 and 32 are hard pipes and are made of the same material as the float bowl part 1 and the duckweed collector 2; the branch pipes 33 and 34 can adopt plastic hoses (with the length of 5m) and the diameter of the duckweed conveying pipeline 3 can adoptA DN50 control valve 311 is provided in the branch pipe 31.
The pumping pump 4 used in this item is a 1-stage diaphragm pump or a self-priming pump (flow Q is 30 m)3The lift is 10m), is driven by a storage battery and a solar power supply which are arranged on the towing ship and is arranged on the towing ship; the pump can convey duckweeds in the river course to the duckweed hydrophobic separator 5.
The duckweed hydrophobic separator 5 used in the project is a stainless steel screw extruder and is arranged on a towing boat, a duckweed interception grid is arranged in the middle of the interior of the duckweed hydrophobic separator, a duckweed collecting region is arranged at the upper part of the duckweed hydrophobic separator, a water collecting region and a water discharging pipeline are arranged at the lower part of the duckweed hydrophobic separator, duckweeds and water can be drained, water without the duckweeds flows back into a river channel, and the duckweeds are treated uniformly.
The equipment has the following working procedures:
adjusting the liquid level of the buoy component: the main components such as the float bowl component 1, the duckweed collector 2 and the like are placed in an operation area needing to remove duckweeds in a river channel, a water discharging valve 13 on a water discharging pipe 12 of the float bowl component 1 is ensured to be closed, a certain amount of water is injected into a water injecting pipe 11 of the float bowl component 1, so that the float bowl component 1 is slowly descended under the gravity of water, and when an upper weir port of an inflow collecting tank 21 is slightly lower than the liquid level of the river channel by about 10mm, water injection is stopped.
Pumping duckweed: and opening the control valve 311 (which can be normally opened) on the branch pipe 31, and starting the pumping pump 4, so that the duckweeds in the shallow layer of the river channel are continuously sucked out and enter the duckweed hydrophobic separator 5 for dehydration and separation.
Daily inspection and maintenance: the water discharge valve 13 on the water discharge pipe 12 is opened and the pumping pump 4 is started, so that the water stored in the buoy part 1 is emptied and discharged, and after the buoy part 1 and the duckweed collector 2 float up due to the buoyancy of the water, the inspection and maintenance work can be performed at this time.
According to the embodiment, the float-type duckweed hydrophobic clearing device is arranged, so that the duckweeds can be installed in a hydraulic facility in a single or cluster mode and can be mechanically worked, and the clearing efficiency of the duckweeds with large area is improved.
The objects and functions of the present invention and methods for accomplishing the same will be apparent by reference to the exemplary embodiments. However, the present invention is not limited to the disclosed exemplary embodiments; it can be implemented in different forms. The nature of the description is merely to assist those skilled in the relevant art in a comprehensive understanding of the specific details of the invention.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

Claims (7)

1. A float-type duckweed hydrophobic removal device, comprising:
the device comprises a buoy component, a duckweed collector, a duckweed conveying pipeline, a pumping pump and a duckweed hydrophobic separator;
the float bowl part is a hollow cylinder, the upper end of the float bowl part is provided with a water injection pipe, and the lower end of the float bowl part is provided with a water drainage pipe, so that the immersion liquid level depth and the depth installation height for removing duckweeds of the float bowl part are adjusted;
the duckweed collector consists of an inflow collecting tank welded with the periphery of the buoy part and an inner box body positioned in the center of the buoy part;
the duckweed conveying pipeline connects the inflow collecting tank with the inner box body and the pumping pump; the pumping pump is used for conveying the collected duckweeds to a duckweed hydrophobic separator for dehydration treatment;
the buoy part is provided with a traction moving rope and can move along the water surface in a portable way.
2. The float-type duckweed hydrophobic removal device according to claim 1, wherein the float bowl component is a hollow cylinder, cuboid or cube shaped like a concentric ring, the diameter or side length of the section of the inner ring is 50-150 cm, the diameter or side length of the section of the outer ring is 90-200 cm, and the height of the cylinder is 40-80 cm; the space region enclosed by the interface between the inner ring and the outer ring is three-dimensional closed, and the space region enclosed by the upper section and the lower section of the inner ring is three-dimensional hollow; the upper end part of the outer ring of the float bowl part is provided with a water injection pipe, and the lower end part of the outer ring of the float bowl part is provided with a drain pipe and a drain valve; the two sides of the upper end part of the duckweed drainage cleaning device are provided with traction moving ropes, so that the duckweed drainage cleaning device can be conveniently and freely moved in the horizontal direction in a hydraulic facility.
3. The float-type duckweed hydrophobic cleaning device according to claim 1, wherein the inflow collecting tank is installed along the circumference of the upper middle ring of the float bowl part, the upper opening part adopts a saw-tooth-shaped triangular weir crest, a rain shield is arranged at the upper part of the triangular weir crest at a certain longitudinal interval, and the inflow collecting tank and the rain shield are welded with the float bowl part into a whole; the inner box body and the buoy component are similar in shape and concentric, a closed cylinder is also adopted, the upper top of the closed cylinder is flush with or slightly higher than the upper top of the buoy component by 5-30 cm, and the lower end of the closed cylinder is a cone; the outer side of the inner box body is connected and fastened with the inner side of the float bowl part by a plurality of sets of radial supporting pieces.
4. The float-type duckweed hydrophobic cleaning device according to claim 1, wherein the duckweed conveying pipeline is divided into four branch pipes according to functions, a branch pipe A connecting the bottom of the inflow collecting tank to the lower side part of the inner box body, a short branch pipe B connecting the bottom of the lower cone of the inner box body, a branch pipe C with one end detachably connected with the branch pipe B by a pipe hoop and the other end connected with the inlet of the pumping pump, and a branch pipe D connecting the outlet of the pumping pump; the branch pipe A and the branch pipe B are hard pipes, the materials of the branch pipe A and the branch pipe B are the same as those of the buoy part and the duckweed collector, and the branch pipe C and the branch pipe B are plastic hoses or fire-fighting water pipes; a control valve is arranged on the branch pipe A according to requirements; the diameter of the duckweed conveying pipeline is 32-100 mm.
5. The float-type duckweed hydrophobic cleaning device according to claim 1, wherein the pumping pump is in the form of a self-sucking pump or a diaphragm pump, and is driven by electric power or pneumatic power, and the pumping amount is 20-100 m3And h, placing the duckweed outside the hydraulic facility, and conveying the duckweed in the hydraulic facility to the duckweed hydrophobic separator.
6. The float-type duckweed hydrophobic removal device according to claim 1, wherein the duckweed hydrophobic separator utilizes gravity, buoyancy or mechanical squeezing principles to separate duckweeds from water, a duckweed interception grid is arranged in the middle of the duckweed hydrophobic separator, a duckweed collection area is arranged at the upper part of the duckweed hydrophobic separator, and a water collection area and a water discharge pipeline are arranged at the lower part of the duckweeds hydrophobic separator.
7. The hydrophobic duckweed removal device of any one of claims 1-6, wherein the device is installed and mechanized in a hydraulic facility in a single or cluster manner, i.e. multiple sets of buoy parts and main duckweed collector parts are installed in a hydraulic facility, and the pumping pump and the duckweed hydrophobic separator are implemented in a one-to-one or multiple-to-one combination, so as to improve the removal efficiency of the large area duckweeds.
CN201920021388.1U 2019-01-07 2019-01-07 Float-type duckweed drainage clearing device Active CN209941637U (en)

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CN201920021388.1U CN209941637U (en) 2019-01-07 2019-01-07 Float-type duckweed drainage clearing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920021388.1U CN209941637U (en) 2019-01-07 2019-01-07 Float-type duckweed drainage clearing device

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CN209941637U true CN209941637U (en) 2020-01-14

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