CN111573846A - Box type ecological floating island lake bay lake flow improvement device and application - Google Patents
Box type ecological floating island lake bay lake flow improvement device and application Download PDFInfo
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- CN111573846A CN111573846A CN202010534351.6A CN202010534351A CN111573846A CN 111573846 A CN111573846 A CN 111573846A CN 202010534351 A CN202010534351 A CN 202010534351A CN 111573846 A CN111573846 A CN 111573846A
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- lake
- ecological floating
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- floating island
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/008—Mobile apparatus and plants, e.g. mounted on a vehicle
Abstract
The invention relates to a box-type ecological floating island lake bay lake flow improvement device and application. The arrangement is in the middle of gulf mouth and is in a position which is slightly higher than the main lake area, and the ecological floating island with deep draft is utilized to change the flow field of the wind-borne stream in the lake area, so that the surface lake flow is promoted or prevented to enter the gulf, and the purpose of improving the structure of the gulf lake flow is achieved. The independent deep draft buoyancy tanks are mutually linked through hinges to form an ecological floating island and are fixed on anchor chains at the bottom of the lake to form certain surface laminar resistance. When the exchange water quantity in the center of a lake and in a bay needs to be changed, the length of the ecological floating island can be changed by increasing or decreasing the number of the floating boxes, so that the size of the overflowing section is changed. Ecological chinampa is fixed in the lakebed through the gravity anchor, and in different seasons, during different main part wind directions, can artifical change arrange the gesture and realize the purpose of water conservancy diversion or retardation rivers: the exchange between the water body in the lake bay and the large lake area is promoted in winter when the algae concentration is low, so that the influence on the water quality caused by the long-term non-exchange of the water body is avoided; and in summer, when the algae concentration is high, the blue algae in the large lake area are prevented from entering the lake bay to be accumulated.
Description
Technical Field
The invention relates to power management of lake bay water change, in particular to a box-type ecological floating island lake bay lake flow improvement device and application.
Background
The outbreak and reproduction of the blue algae are the direct consequence of water eutrophication. With the rapid development of society, lakes and reservoirs are increasingly rich in nutrients, and lakes and gulfs are water areas with the most serious accumulation of blue algae. The water in the lake inlet is lack of necessary circulation, the dissolved oxygen in the water is too low, the living environment of aquatic animals and plants is deteriorated, the water gradually loses the self-purification capability, the sludge at the bottom of the lake cannot be decomposed, and the bottom sludge is continuously released and decomposed into N, P and other nutritive salts, so that the eutrophication of the water is aggravated, the water gradually turns green, and the algae grows excessively. The peculiar smell is generated after the blue algae is piled up and dead, and finally the lake flooding is caused. At present, no effective measure exists for the treatment of lake flow in the gulf of a lake, so a new technical scheme for realizing the purpose of inhibiting and controlling algae based on improving the hydrodynamic force of the gulf of the lake is urgently needed to be provided: in winter, the water exchange capacity of the water body area of the lake and the large lake area is properly improved, and the water quality of the lake can be effectively improved; in summer, the water with high algae concentration in the great lake area is weakened to enter the lake, so that the death and the lake flooding caused by the accumulation of a large amount of cyanobacterial blooms in the lake can be prevented.
Disclosure of Invention
The invention aims to provide a box-type ecological floating island lake flow improving device and application thereof, so as to change the arrangement modes of the length, underwater depth, axis shape, included angle with water flow and the like of an ecological floating island according to different seasons, wind directions and water level conditions, thereby realizing the purposes of enhancing lake water power in winter and intercepting high algae water from entering a lake in summer; meanwhile, the engineering of the invention does not influence the natural landscape, and meets the technical requirements of landscape, ecology and the like. The specific technical scheme of the invention is as follows:
a box-type ecological floating island lake bay lake flow improving device comprises a box-type ecological floating island, a gravity anchor, a fixed cable, an anchor lifting buoyancy ball and an air blowing pipe, wherein the box-type ecological floating island, the gravity anchor, the fixed cable, the anchor lifting buoyancy ball and the air blowing pipe are sequentially connected by at least 3 ecological floating boxes;
the ecological floating boxes at the two ends of the ecological floating island are connected with a gravity anchor through fixed cables and are fixed on a lake bed at the gulf mouth of the lake; the outer side of the ecological buoyancy tank adopts an integrally formed glass fiber reinforced plastic ship tank; the mounting frame is arranged at the upper edge of the glass fiber reinforced plastic ship box; the frame is provided with a square steel longitudinal beam and a square steel cross beam; the ecological floating boxes are sequentially hinged through hinges fixed on the frame; the anchoring buoyancy ball is fixed on an iron ring above the center of the gravity anchor gravity center line; one end of the air blowing pipe is connected to the uppermost end of the buoyancy ball in a hinged mode, and the other end of the air blowing pipe is fixed on the glass fiber reinforced plastic ship box; the emergent aquatic plants are planted in the ecological floating box.
Furthermore, the number of the square steel beams (11) is 5; the number of the square steel longitudinal beams (10) is 2.
Furthermore, the draft of the ecological floating island buoyancy tank is required to be more than 0.5 m.
Further, the width of the ecological buoyancy tank is 12m-18m, preferably 13m, and the length of the ecological buoyancy tank is 29m-31m, preferably 30 m.
Furthermore, one end of the fixing cable is fixed on hinges on the ecological floating island frames at the two ends, and the other end of the fixing cable is fixed on an iron ring above the center of the gravity anchor gravity center line;
preferably, the anchoring buoyancy ball is a high-strength rubber material ball with the diameter of 2.5 m.
Furthermore, the gravity anchor is formed by casting integrally, the width dimension of an anchor foot of the gravity anchor is 1.4-16 m, preferably 1.5m, the width dimension of an upper disc is 2.3-2.7 m, preferably 2.5m, and the designed weight of the whole gravity anchor reaches 5 tons. Preferably, the buoyancy of the anchoring floating ball reaches more than 1.5 times of the weight of the gravity anchor.
Furthermore, the ecological buoyancy tank filler adopts 2 layers of layered filling, the lower layer is filled with light EPS foam material with better permeability, and the filling thickness is 20cm, so as to avoid the decay of plant roots; the upper layer of the filler is 40cm thick, soil formed by drying local lake dredging waste soil is adopted, and plants are planted in the upper layer of the filler, preferably emergent aquatic plants with low plant height.
Furthermore, the emergent aquatic plants are planted in the upper layer of filler, and the emergent aquatic plants are preferably cattail, wild rice grass, canna and tatariella.
The box-type ecological floating island lake flow improvement device is particularly suitable for lake flow with the flow speed of less than 0.1 m/s.
According to the technical scheme, the width of the ecological buoyancy tank ensures that the ecological buoyancy tank has a certain wave eliminating effect on the wind waves of shallow lakes; the draught depth of the ecological buoyancy tank is more than 0.5m, so that the flow-blocking effect on wind-generated current in shallow lakes is guaranteed; the buoyancy of the anchoring buoyancy ball reaches 1.5 times of the self weight of the gravity anchor, so that the anchoring function is not influenced; the weight of the gravity anchor reaches more than 5 tons, and the vertical impact force of wind-generated flow with the flow speed of 0.1m/s borne by 10 ecological floating boxes of the 300m ecological floating island can be resisted.
Due to the influence of the depth of water in shallow lake operation, the diameter of the anchoring buoyancy ball is not suitable to be larger, and the applicable depth range of the device is greatly influenced. The working depth of the currently designed shallow lake is not less than 3.0 m. When the number of the ecological floating boxes forming the ecological floating island exceeds 10, the lake flow resistance control is formed by adopting a segmented implementation mode, namely an island chain formed by a plurality of ecological floating islands.
The design principle of the invention is as follows:
the ecological floating island is arranged on a flow line of gulf-mouth lake flow, and the main body of the wind-induced current flows within 0.5m of the surface layer of a water body, so that the floating island can form certain resistance, partial water flow enters the lake bay to form an exchange circulation flow, and partial water flow flows through the outer side and the lower side of the floating island; the ecological floating island is designed with the gravity anchor as required to be fixed on the bottom bed of the lake bottom. In order to facilitate anchor lifting movement, an anchor lifting floating ball is arranged on the upper side of the gravity anchor central line, and the floating ball is used for lifting an anchor by using the buoyancy of a water body after being inflated by a direct-current high-pressure air blowing pump; in order to meet the requirements of different main wind directions in different seasons and adjust the water body replacement capacity in the bay, the floating island is designed to be composed of a plurality of floating boxes which are mutually linked by hinges, and the length and the axis shape are convenient to adjust. The floating boxes are hinged by hinges with the diameter of 5cm and fixed on the frame. The ecological floating island is formed by a plurality of floating boxes. During winter, the box-type ecological floating island lake bay lake flow improvement device is arranged in the central position of the bay mouth, and the length of the about 1/2 floating island exceeds the bay mouth. Therefore, a water blocking effect on gulf-mouth horizontal lake flows is formed, partial lake flows enter the lake, the exchange between the lake water body and the large lake water body is promoted, the environmental capacity of the water body in the lake is improved, and the water quality is improved.
In summer, blue algae is easy to accumulate in the lake, and the sources are mainly input along with lake flow in a large lake area. In order to prevent the input of blue algae, the form and the position of the ecological floating island need to be changed. The floating boxes at two ends of the invention utilize a high-voltage direct-current blower to inflate the anchoring buoyancy balls to the gravity anchors to start floating in the water body, and at the moment, the anchoring buoyancy balls reach the water surface. After the anchor is lifted, the position of the ecological floating island at the gulf mouth of the lake bay is changed or the buoyancy tanks are increased or decreased by using a power boat traction mode. After the bay mouth is dragged to a position where water is suitably blocked in the direction facing the lake flow, the inflation tube air valve is opened to release air, and then the anchoring can be carried out until the anchoring buoyancy ball discharges air under the action of water pressure, so that the anchoring is realized and the anchoring is fixed on the lake bed.
The ecological floating island is formed by a plurality of floating boxes which are mutually and sequentially connected through hinges, and the length and the axis shape are convenient to adjust. And the ecological floating boxes are riveted by iron anchor chains with the diameter of 5cm on the fixed frame. The ecological floating island is formed by a plurality of floating boxes.
Has the advantages that:
the invention has the following remarkable beneficial effects:
(1) the ecological floating island with the draught of more than 0.5m formed by the buoyancy tank hinges obstructs the original lake flow and forms the lake flow divided to enter the lake bay, thereby promoting the water body exchange in the lake bay. Not only improves the exchange capacity of the water body in the lake and the gulf, but also can not damage the water ecological environment.
(2) The main body of the ecological floating island filler is a local lake sediment desilting and drying material, which not only accords with the local ecological environment friendliness, but also saves the manufacturing cost and the transportation cost.
(3) The ecological floating island type ecological floating island can adapt to different water level requirements and automatically adapt to the requirement of blocking the surface layer wind-borne lake flow along with the water level change.
(4) The floating ball anchoring mode of the invention facilitates the change of the attitude of the floating island due to the seasonal main wind direction change during the operation and maintenance.
(5) The box-type floating island has the benefits that the length of the floating island is convenient to adjust, and only the middle floating box is increased or decreased when the length is increased or decreased.
Drawings
FIG. 1 is a side view of the improved apparatus of the present invention.
Fig. 2 is a top view of the ecological buoyancy tank.
Figure 3 is a longitudinal section of the gravity anchor construction.
Figure 4 is a cross-sectional view of a gravity anchor arrangement.
Fig. 5 arrangement diagram in the bay in summer.
Fig. 6 a layout in a bay in summer.
In the figure: 1: an ecological buoyancy tank; 2: a gravity anchor; 3: a fixed cable; 4: anchoring buoyancy balls; 5: blowing a gas pipe; 6: a hinge; 7: emerging plants; 8: an anchor foot; 9: hanging the plate; 10: a stringer; 11: a cross beam; 12: a glass fiber reinforced plastic ship box; 13: a frame.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments, and it is to be understood that the described embodiments are only a part of the embodiments of the invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in FIGS. 1-2; the invention provides a box-type ecological floating island lake flow improvement device, which is formed by connecting box-type floating boxes to form an ecological floating island, wherein the length of the ecological floating island can be 1/4-1/3 of the distance from the gulf mouth to the gulf top according to the dimension condition of the lake. The invention provides a device for improving lake flow of a box-type ecological floating island, which comprises a box-type ecological floating island, a gravity anchor 2, a fixed cable 3, an anchor lifting buoyancy ball 4 and an air blowing pipe 5, wherein the box-type ecological floating island is formed by sequentially linking at least 3 ecological floating boxes 1 through hinges 6; the ecological floating boxes 1 at two ends of the ecological floating island are connected with the gravity anchor 2 through the fixing cables 3 and are fixed on the lake bed of the gulf mouth lake flow; (ii) a The outer side of the ecological buoyancy tank 1 adopts an integrally formed glass fiber reinforced plastic ship tank 12; the mounting frame 13 is arranged at the upper edge of the glass fiber reinforced plastic ship box 12; the frame 13 is provided with a square steel longitudinal beam 10 and a square steel cross beam 11; the ecological floating boxes 1 are sequentially hinged through hinges 6 fixed on a frame 13; and the anchoring buoyancy ball 4 is fixed on an iron ring above the center of the gravity anchor 2.
One end of the air blowing pipe 5 is connected to the uppermost end of the buoyancy ball 4 in a hinged mode, and the other end of the air blowing pipe is fixed on the glass fiber reinforced plastic ship box 12; the emergent aquatic plants 7 are planted in the ecological floating box 1.
The buoyancy tank 1 adopts an integrally formed glass fiber reinforced plastic ship tank 12, and the ship shape is a cuboid deep-draft body type. As a certain depth is needed to form water resistance, the ship shape is 0.8m deep, and the draught depth is required to be more than 0.5 m. The ecological floating island has the capacity of resisting waves enough, and according to the characteristic that the wave wavelength of wind in a large shallow lake is generally less than 13m, the width of the ecological floating tank 1 is 12m-18m, and the length is 29m-31 m. This example designs a buoyancy tank with a width of 13m and a length of 30 m. In order to resist waves, the inside of the ship box is reinforced by a steel frame structure, 5 40 mm-40 mm square steel transverse beams 11 and 2 60-60 m square steel longitudinal beams 10 are arranged, and the steel beams are arranged at the upper edge of a glass fiber reinforced plastic ship type 12. Not only ensures the strength, but also ensures that the stuffing of the buoyancy tank 1 can not run off under the action of waves. The floating box 1 is filled with 2 layers of layered filling, the lower layer is filled with light EPS foam material with good permeability, and the filling thickness is 20cm, so that the plant root system is prevented from being rotten. The upper layer of the filling material is 40cm thick, and soil formed by drying the local lake dredging waste soil is adopted. The upper layer is filled with plants, preferably emergent aquatic plants 7 with low plant height, such as Typha orientalis L, Zizania latifolia L, canna indica L, and mullet.
The floating boxes are riveted by iron hinges 5 which are fixed on the frame 13 and have the diameter of 5 cm. The ecological floating island is formed by a plurality of floating boxes.
In order to ensure that the ecological floating island does not drift under the action of wind waves, two ends of the floating island are fixed on the lake bed in a mode that a fixed cable 3 is connected with a gravity anchor 2. The fixed cable 3 adopts an iron chain with the chain diameter of 1cm, and the length of the iron chain is 2 times of the water depth. One end of the fixed cable 3 is fixed on an iron hinge 6 with the diameter of 5cm on a frame 13 at the end part of the ecological buoyancy tank 1, and the other end is fixed on the gravity center of the gravity anchor 2. The gravity anchor 2 is integrally cast by cast iron, and as shown in fig. 3-4, 4 anchor feet 8 are symmetrically arranged and an upper plate 9, the width dimension of the anchor feet 8 is 1.5m, and the width dimension of the upper plate 9 is 2.5 m. The whole gravity anchor design weight reaches 5 tons. The anchor lifting mode adopts an anchor lifting buoyancy ball 4 for anchor lifting. The anchoring buoyancy ball 4 is a high-strength rubber ball with the diameter of 2.5m and is fixed on an iron ring above the center of the gravity anchor 2 gravity center line. The inflation tube 5 is a high-strength rubber tube with the tube wall thickness of 0.5cm, the inner diameter is 3cm, the outer diameter is 4cm, and the length is consistent with that of the fixing cable 3. One end of the gas-filled tube 5 is connected with the buoyancy ball 4 at the uppermost end by adopting a glue joint mode, and the other end is fixed on the ship case 12. The anchoring buoyancy can reach 8 tons under the condition of complete inflation, and the gravity anchor can be suspended in the water body after anchoring.
According to the technical scheme, the width of the ecological buoyancy tank ensures that the ecological buoyancy tank has a certain wave eliminating effect on the wind waves of shallow lakes; the draught of the ecological buoyancy tank is more than 0.5m, so that the flow-blocking effect on wind-generated current in shallow lakes is guaranteed; the buoyancy of the anchoring buoyancy ball reaches 1.5 times of the self weight of the gravity anchor, so that the anchoring function is not influenced; the weight of the gravity anchor reaches more than 5 tons, and the vertical impact force of wind-generated flow with the flow speed of 0.1m/s borne by a 300m ecological floating island (10 ecological floating boxes) can be resisted.
Due to the influence of the depth of water in shallow lake operation, the diameter of the anchoring buoyancy ball is not suitable to be larger, and the applicable depth range of the device is greatly influenced. The working depth of the currently designed shallow lake is not less than 3.0 m. When the number of the ecological floating boxes forming the ecological floating island exceeds 10, the lake flow resistance control is formed by adopting a segmented implementation mode, namely an island chain formed by a plurality of ecological floating islands.
When the position or the shape of the ecological floating island needs to be changed, the anchoring floating ball is inflated by the air-blowing pump, so that the anchoring can be realized by utilizing buoyancy, and the anchoring task which can be finished by using a large-scale operation ship is avoided.
During winter, box ecological chinampa lake bay lake flow improves device and arranges in gulf mouth central position, and about 1/2 chinampa length exceeds gulf mouth, and ecological chinampa flotation tank draft is not less than 0.5m, adjusts the draft through filling soil thickness during the operation, arranges as shown in fig. 5. Therefore, a water blocking effect on gulf-mouth horizontal lake flows is formed, partial lake flows enter the lake, the exchange between the lake water body and the large lake water body is promoted, the environmental capacity of the water body in the lake is improved, and the water quality is improved.
In summer, blue algae is easy to accumulate in the lake, and the sources are mainly input along with lake flow in a large lake area. In order to prevent the input of blue algae, the form and position of the ecological floating island should be changed. At the moment, the floating boxes at two ends are only required to utilize a high-voltage direct-current blower to inflate the anchor lifting buoyancy balls 4 to the gravity anchor through the blast pipe 5 to start floating in the water body. At the moment, the anchoring buoyancy ball 4 is required to reach the water surface, and the draught position of the buoyancy ball 5 in the water body is adaptively adjusted according to the gravity of the gravity anchor 3. After the anchor is lifted, the position of the ecological floating island 3 at the gulf mouth of the lake is changed or the buoyancy tanks are increased or decreased by using a power boat traction mode. After the ship is dragged to a proper position where water is blocked at the gulf mouth in the lake flow direction, the air valve of the inflation tube is opened to release the air, and the ship can be anchored until the anchoring buoyancy ball 4 exhausts the air under the action of water pressure, so that the ship is anchored on the lake bed, and the arrangement is shown in fig. 6.
Claims (10)
1. A box-type ecological floating island lake-bay lake flow improving device is characterized by comprising a box-type ecological floating island, a gravity anchor (2), a fixed cable (3), an anchor lifting buoyancy ball (4) and an air blowing pipe (5), wherein the box-type ecological floating island is formed by sequentially linking at least 3 ecological floating boxes (1);
the ecological floating boxes (1) at two ends of the ecological floating island are connected with the gravity anchor (2) through the fixing cable (3) and are fixed on the lake bed at the gulf mouth of the lake;
the outer side of the ecological buoyancy tank (1) adopts an integrally formed glass fiber reinforced plastic ship tank (12); the upper edge of the glass fiber reinforced plastic ship box (12) is provided with a mounting frame (13); the frame (13) is provided with a square steel longitudinal beam (10) and a square steel cross beam (11);
the ecological floating boxes (1) are sequentially hinged through hinges (6) fixed on the frame (13);
the anchoring buoyancy ball (4) is fixed on an iron ring above the center of the gravity anchor (2);
one end of the air blowing pipe (5) is connected to the uppermost end of the buoyancy ball (4) in a hinged mode, and the other end of the air blowing pipe is fixed on the glass fiber reinforced plastic ship box (12);
the emergent aquatic plants (7) are planted in the ecological floating box (1).
2. The improvement device for the lake flow of the box-type ecological floating island lake bay as claimed in claim 1, wherein the number of the square steel beams (11) is 5; the number of the square steel longitudinal beams (10) is 2.
3. The improvement device for the lake flow of the box-type ecological floating island lake bay as claimed in claim 1, wherein the draft of the ecological floating island buoyancy tank (1) is more than 0.5 m.
4. The improvement device for the lake flow of the box-type ecological floating island lake bay as claimed in claim 1, wherein the width of the ecological floating box (1) is 12m-18m, preferably 13m, and the length is 29m-31m, preferably 30 m.
5. The improvement device for the flow of the box-type ecological floating island lake bay according to claim 1, wherein one end of the fixed cable (3) is fixed on the hinges (6) on the frames (13) of the ecological floating islands (1) at the two ends, and the other end is fixed on an iron ring above the center of the gravity line of the gravity anchor (2).
6. The improvement device for the lake flow of the box-type ecological floating island lake bay as claimed in claim 1, wherein the anchoring buoyancy ball (4) is a high-strength rubber ball with the diameter of 2.5 m.
7. The improvement device for the lake flow of the box-type ecological floating island lake bay as claimed in claim 1, wherein the gravity anchor (2) is integrally cast, the width dimension of the anchor foot (8) of the gravity anchor (2) is 1.4m-1.6m, preferably 1.5m, the width dimension of the upper plate (9) is 2.3m-2.7m, preferably 2.5m, and the design weight of the whole gravity anchor (2) reaches 5 tons.
8. The improvement device for the lake flow of the box-type ecological floating island, lake bay and lake of claim 1, wherein the buoyancy (4) of the anchoring floating ball is more than 1.5 times of the weight of the gravity anchor (2).
9. The improvement device for the lake flow of the box-type ecological floating island lake bay according to claim 1, wherein the ecological floating box (1) is filled with 2 layers of layered filling, the lower layer is filled with light EPS foam material with better permeability, and the filling thickness is 20 cm; the upper layer of the filling material is 40cm thick, and soil formed by drying the local lake dredging waste soil is adopted.
10. The improvement device of lake bay of box-type ecological floating island as claimed in any one of claims 1 to 9 is applied to lake bay with a flow rate below 0.1 m/s.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010534351.6A CN111573846A (en) | 2020-06-12 | 2020-06-12 | Box type ecological floating island lake bay lake flow improvement device and application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010534351.6A CN111573846A (en) | 2020-06-12 | 2020-06-12 | Box type ecological floating island lake bay lake flow improvement device and application |
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| CN111573846A true CN111573846A (en) | 2020-08-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113545283A (en) * | 2021-06-17 | 2021-10-26 | 中建八局西南建设工程有限公司 | Ship-connected large lake water environment treatment construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113545283A (en) * | 2021-06-17 | 2021-10-26 | 中建八局西南建设工程有限公司 | Ship-connected large lake water environment treatment construction method |
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