A method for taking water from a positioning floating pontoon arranged at the rear edge of a high-pile dock

Abstract

The present invention discloses a method for taking water from a positioning floating pontoon arranged at the rear edge of a high-pile dock. It includes the following steps: step one: installing a positioning floating pontoon water intake system arranged at the rear edge of a high-pile dock; step two: taking water with a water intake pump; when the water intake water level is at the lowest water level or between the middle water level and the lowest water level, the drainage pipe is sequentially connected through a hose to form a continuous inclined water intake structure; when the water intake water level is at the middle water level or between the highest water level and the middle water level, the water intake pontoon and the floating pontoon both float on the water surface of the water level, and the drainage pipe is sequentially connected through a hose to form a continuous partially inclined and partially horizontal water intake structure; when the water intake water level is at the highest water level, the water intake pontoon and the floating pontoon both float on the water surface of the water level, and the drainage pipe is sequentially connected through a hose to form a continuous water intake structure; step three: maintaining and repairing the upper and lower water intake pontoons. The present invention has the advantages of low investment cost, simple and safe water intake operation.

Description

Technical Field

[0001] The invention relates to the technical field of water supply and drainage engineering, and more specifically to a method for taking water from a positioning floating pontoon arranged at the rear edge of a high-pile dock. Background Art

[0002] Many enterprises along the river consume a large amount of water in the production process. Most of them will consider taking water directly from the river for industrial production when building dock projects.

[0003] Water is usually taken from the existing river surface by fixed and mobile pump boats. The pump stations used for fixed water intake are mostly vertical shaft pump houses (divided into dry and wet types). Mobile water intake mostly adopts the "pump boat (water intake pumps are arranged on floating pontoons) + cable car" method. The wet vertical shaft pump house uses the lower part of the deep well shaft as a water collection well, and the upper part is built above the design flood level, and a deep well pump unit is installed. The dry deep well pump house mostly uses horizontal or vertical centrifugal pumps, and the units are mostly set at the bottom of the well shaft below the flood level for water intake.

[0004] Due to the large fluctuation of water level on the river surface, the maximum fluctuation of water level between river sections may exceed 15m, and even more so, the maximum fluctuation of water level may exceed 30m. The existing fixed water intake method on the river surface generally builds a water intake pump house on the shore, sets a water collection well under the pump house, buries a water diversion pipe perpendicular to the water flow direction (laid along the river bottom, with the water intake head extending into the lowest water level in the river), or builds a water intake pump house in the river and sets a drainage pipe gallery perpendicular to the water flow direction. The conventional fixed water intake process has the disadvantages of large civil engineering investment, long deep well pump shaft, large wear of deep well pump shaft when rotating at high speed, and large maintenance workload. Conventional mobile water intake arranges the water intake pump on a floating pontoon (pump boat), and connects the water supply pipe on the shore through multiple floating dams to support the water intake pipe. When the water level changes, it is necessary to remove (or add) the floating dam and water intake pipe, and use a cable car to pull (or release) the pump boat close to (or away from) the shore. Conventional mobile water intake has many disadvantages, such as complicated operation, the pump boat is easily hit by passing ships or floating objects, and it is difficult or unsafe for operators to get on and off the pump boat for maintenance and overhaul when using small boats to get on and off the water intake pontoon.

[0005] Therefore, it is necessary to develop a river water intake method that reduces civil engineering investment, maintenance workload and equipment wear and tear, and is simple and safe to operate. Summary of the invention

[0006] The purpose of the present invention is to provide a method for taking water from a river surface by a positioning floating pontoon arranged at the rear edge of a high-pile dock, which is a method for taking water from a river surface that reduces civil engineering investment, maintenance workload, and equipment wear, has low investment cost, is simple to operate, and is safe. The present invention considers using the high-pile dock platform to cover the water-taking pontoon, and using the dock approach bridge to arrange the water-taking pipeline, thereby improving the safety of the water-taking components, which has great engineering significance, and can take water in real time between the lowest water level and the highest water level of the river surface only by using the water-taking pontoon arranged on the water-taking pontoon, thereby saving engineering and equipment investment costs. The operation is simple, which reduces the wear and tear of the equipment and the maintenance workload. At the same time, the stable manholes and stairs arranged on the dock platform make it safer and more convenient for operators to get on and off the water-taking pontoon for maintenance and overhaul. It overcomes the disadvantages of complicated conventional water-taking operations, the pump boat being easily hit by passing ships or floating objects, large investment in civil engineering projects, easy wear of equipment and large maintenance workload, operators using small boats to get on and off the water-taking pontoon for maintenance and overhaul, the small boat is always in an unstable state of ups and downs due to the ups and downs of the dock water surface, and getting on and off the pump boat is difficult and unsafe.

[0007] In order to achieve the above object, the technical solution of the present invention is: a method for taking water from a positioning pontoon arranged at the rear edge of a high-pile dock, characterized in that it comprises the following steps:

[0008] Step 1: Install the positioning floating pontoon water intake system arranged at the rear edge of the high-pile wharf;

[0009] Relying on the high-pile wharf as a cover, multiple positioning piles are arranged at the rear edge of the wharf. The positioning piles limit the position of the water intake pontoon and the floating pontoon. The water intake pump is arranged on the water intake pontoon. The drainage pipe is laid in sections along the water intake pontoon, the floating pontoon and the wharf approach bridge.

[0010] A manhole and stairs are arranged at the rear edge of the dock surface corresponding to the water intake pontoon area; wherein the stairs are arranged close to the water intake pontoon;

[0011] Step 2: Take water from the water pump;

[0012] When the water intake level is at the lowest water level or between the middle water level and the lowest water level, the water intake pontoon floats on the water surface at the water level, the floating pontoon is fixed on the positioning pile through a limit device, and is located above the side of the water intake pontoon and above the water level, the drainage pipe between the approach bridge deck and the floating pontoon, and the drainage pipe between the floating pontoon and the water intake pontoon are connected in sequence through hoses to form a continuous inclined water intake structure; water is taken in by the water intake pump on the water intake pontoon, and the taken water is transported to the shore side land along the drainage pipe;

[0013] When the water intake level is at the middle water level or between the highest water level and the middle water level, the water intake pontoon and the floating pontoon both float on the water surface at this water level, and the drainage pipe between the approach bridge deck and the floating pontoon, and the drainage pipe between the floating pontoon and the water intake pontoon are sequentially connected by hoses to form a continuous partially inclined and partially horizontal water intake structure; water is taken in by the water intake pump on the water intake pontoon, and the taken water is transported to the shore side land along the drainage pipe;

[0014] When the water intake level is at the highest water level, the water intake pontoon and the floating pontoon both float on the water surface at that water level, and the drainage pipe between the approach bridge deck and the floating pontoon, and the drainage pipe between the floating pontoon and the water intake pontoon are sequentially connected through hoses to form a continuous horizontal water intake structure; water is taken in through the water intake pump on the water intake pontoon, and the taken water is transported to the shore side land along the drainage pipe;

[0015] Step 3: Maintenance and inspection of upper and lower water intake pontoons;

[0016] Maintenance personnel go up and down the water-drawing pontoon through the manhole and stairs at the rear edge of the dock surface to maintain and inspect the equipment on the water-drawing pontoon.

[0017] In the above technical solution, the positioning pontoon water intake system arranged at the rear edge of the high-pile wharf includes a water intake pontoon, a pontoon, positioning piles, a water intake pump, a hose, a drain pipe, a manhole and a staircase;

[0018] Both the water intake pontoon and the floating pontoon float on the water surface; the water intake pontoon floats on the water surface, rising with the rising water level of the Yangtze River and falling with the falling water level of the Yangtze River. The water intake pontoon floats between the lowest and highest water levels of the Yangtze River; the floating pontoon is affected by the limit devices on the two positioning piles, and rises and falls between the middle water level and the highest water level of the Yangtze River;

[0019] The positioning piles are arranged at the rear edge of the high-pile wharf; the high-pile wharf provides good protection for the water intake pontoon and the floating pontoon; the positioning piles arranged at the rear edge of the high-pile wharf limit the water intake pontoon and the floating pontoon. The water intake pontoon and the floating pontoon rise and fall with the water level, and the plane position of the water intake pump arranged on the water intake pontoon remains unchanged and relatively fixed;

[0020] The positioning piles are inserted vertically into the mud surface and are arranged parallel to the approach bridge pile foundation on the approach bridge surface;

[0021] There are multiple positioning piles, and the multiple positioning piles are arranged in parallel and at intervals;

[0022] Positioning piles are set at the water intake pontoon and floating pontoon;

[0023] The water intake pontoon and floating pontoon are both subject to the horizontal limit effect of the positioning piles;

[0024] The water intake pontoon and floating pontoon float up and down along the positioning piles;

[0025] The water pontoon is movably connected to the positioning piles; the floating pontoon is movably connected to the positioning piles; the positioning piles position the water pontoon and the floating pontoon;

[0026] The pontoon is restrained by the positioning pile limit device;

[0027] The water intake pump is arranged on the water intake pontoon;

[0028] The water intake pump is connected to the drainage pipe through a hose; the water taken by the water intake pump is discharged to the rear land through the hose and the drainage pipe;

[0029] The manhole is arranged at the rear edge of the dock surface corresponding to the water intake pontoon area, the stairs are arranged in the dock pile foundation area below the manhole, and between the dock pile foundations below the manhole close to the water intake pontoon; the stairs are arranged in the interval between the lowest water level and the highest water level.

[0030] In the above technical solution, the drain pipe includes a first drain pipe, a second drain pipe and a third drain pipe;

[0031] The first drainage pipe is located between the water intake pontoon and the floating pontoon;

[0032] The second drainage pipe is located between the pontoon and the approach bridge deck;

[0033] The third drainage pipe is arranged along the length of the bridge approach surface; the drainage pipe is laid using the bridge approach to enter the land plant area;

[0034] The hoses are arranged at the connection between the first drainage pipe and the second drainage pipe, and at the connection between the second drainage pipe and the third drainage pipe respectively; the drainage pipes are connected by the hoses to adapt to the floating of the pontoon and the floating pontoon when the water level changes; during the floating process of the water intake pontoon and the floating pontoon, the inclination angle of the water intake pipe changes, and the water intake hose plays a role of connection and angle adjustment adaptability, so that the water intake pump on the water intake pontoon can still normally intake and transport water when the water level changes;

[0035] The first drainage pipe is connected to the water intake pump through a hose.

[0036] In the above technical solution, the positioning piles include a first positioning pile and a second positioning pile;

[0037] The first positioning pile is arranged at the water intake pontoon and is movably connected to the water intake pontoon;

[0038] The second positioning pile is arranged at the pontoon and is movably connected to the pontoon.

[0039] In the above technical solution, the limiting device is arranged on the second positioning pile and is located below the pontoon. The limiting device is installed in the middle of the second positioning pile to limit and support the pontoon, and is located below the side of the approach bridge deck. The pontoon is constrained by the limiting device of the positioning pile.

[0040] In the above technical solution, a slide groove is provided on the first positioning pile; the water intake pontoon is slidably connected with the first positioning pile through the slide groove structure;

[0041] There are multiple first positioning piles, which are arranged around the water intake pontoon, so that the water intake pontoon can float up and down stably along the first positioning piles.

[0042] A slide groove is arranged on the second positioning pile; the floating pontoon is slidably connected with the second positioning pile through the slide groove structure;

[0043] There are multiple second positioning piles, and the multiple second positioning piles are arranged on both sides of the pontoon, so that the pontoon can float up and down stably along the second positioning piles.

[0044] The present invention has the following advantages:

[0045] (1) The present invention considers using the high-pile dock platform to cover the water intake pontoon and using the dock approach bridge to arrange the water intake pipeline, thereby improving the safety of the water intake components, which is of great engineering significance. In addition, the water intake pontoon installed on the water intake pontoon can be used to take water in real time between the lowest water level and the highest water level of the river surface, saving engineering and equipment investment costs, and is easy to operate, reducing the wear and tear of equipment and reducing the maintenance workload; it overcomes the disadvantages of conventional water intake operations being complicated, pump boats being easily hit by passing ships or floating objects, large civil engineering investment, easy wear and tear of equipment, and large maintenance workload;

[0046] (2) The present invention can reduce the construction and installation investment cost, improve the water intake efficiency, and reduce the maintenance workload; compared with the existing fixed water intake process, the present invention has the following characteristics: 1) There is no need to build a water intake pump house, a water collection well, bury a water diversion pipe perpendicular to the water flow direction, or set a drainage pipe gallery perpendicular to the water flow direction, which greatly reduces the investment in water intake projects; 2) The water pump is directly installed on the pontoon, the water intake shaft of the water pump is short, and the water intake efficiency is high; 3) The water pump is directly installed on the pontoon, the water intake shaft of the water pump is short, the high-speed rotating water pump water intake shaft has little wear, the maintenance workload is small, and the maintenance is convenient;

[0047] (3) The present invention can reduce equipment investment costs, improve the safety of water intake equipment, and simplify operation. Compared with the existing mobile water intake process, the present invention has the following characteristics: 1) When the water level changes, in the wider area of ​​the river bank, there is no need to arrange multiple floating storages to support the water intake pipe to connect the shore water supply pipe. The water intake pipe can be arranged along the dock approach bridge to the rear land, reducing the equipment investment cost; 2) It can be used for river surface water intake in river sections with water level changes of 15m to 30m, and real-time water intake can be carried out between the lowest and highest water levels of the river surface. When the water level changes, there is no need to remove (or add) floating storages and Water intake pipe, there is no need to install a cable car on the shore to pull (or release) the pump boat close to (or away from) the shore, and the operation is simple; 3) All water intake facilities are arranged at the rear edge of the dock. The high-pile dock provides good protection for water intake facilities such as pump boats. The water intake facilities will not be hit by passing ships or floating objects, thereby improving the safety of water intake equipment; 4) It is safe and convenient for maintenance personnel to get on and off the water intake pontoon for maintenance; maintenance personnel who get on and off the water intake pontoon go up and down the water intake pontoon through the manhole and stairs on the dock surface, which is suitable for maintenance of the water intake pontoon when the water level at the dock is between the lowest and highest water levels. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a top view of the present invention.

[0049] Figure 2 The present invention is a Figure 1 (Water intake process in the downstream direction).

[0050] Figure 3 The present invention is a Figure 2 (The process of going up and down stairs following the water).

[0051] Figure 4 The present invention is a Figure 3 (perpendicular to the water flow).

[0052] Figure 5 It is a process flow chart of the present invention.

[0053] exist Figure 1 In the figure, A represents the direction of water flow; B represents the high-pile dock surface; and C represents the chute.

[0054] exist Figure 2 In the figure, L1 represents the highest water level; L2 represents the middle water level; L3 represents the lowest water level; N represents the mud surface line; and Y represents the approach bridge pile foundation.

[0055] exist Figure 3 , Figure 4 In the figure, B represents the high-pile dock surface; L1 represents the highest water level; L3 represents the lowest water level; N represents the mud surface line; and M represents the dock pile foundation.

[0056] In the figure, 1-water intake pontoon, 2-floating pontoon, 3-positioning piles, 3.1-first positioning piles, 3.2-second positioning piles, 3.21-limiting device, 4-water intake pump, 5-hose, 6-drainage pipe, 6.1-first drainage pipe, 6.2-second drainage pipe, 6.3-third drainage pipe, 7-approach bridge deck, 8-manhole, 9-stairs. DETAILED DESCRIPTION

[0057] The following is a detailed description of the implementation of the present invention in conjunction with the accompanying drawings, but they do not constitute a limitation of the present invention and are only used as examples. At the same time, the advantages of the present invention are made clearer and easier to understand through the description.

[0058] Referring to the attached drawings, it can be seen that a method for taking water from a positioning floating pontoon arranged at the rear edge of a high-pile dock includes a water intake pump 4 arranged on a water intake pontoon 1 and positioning piles 3 arranged around the water intake pontoon. The water taken by the water intake pump 4 is discharged along a hose 5 and a drain pipe 6. The drain pipe 6 is arranged in sections. A hose 5 is arranged between the drain pipes 6. A floating pontoon 2, a supporting hose 5, and a drain pipe 6 are arranged.

[0059] At the same time, a manhole 8 and a staircase 9 are arranged at the rear edge of the dock surface corresponding to the water intake pontoon 1 area; wherein the staircase 9 is arranged close to the water intake pontoon 1 .

[0060] The water intake pontoon 1 floats on the water surface, and the positioning piles 3 play a role in horizontal plane positioning of the water intake pontoon 1, so that the water intake pontoon 1 rises and falls with the rise and fall of the water level of the Yangtze River.

[0061] Positioning piles 3 are arranged around the pontoon 2, and a limiting device 3.21 is arranged at the position of the positioning piles 3 corresponding to the water level of the Yangtze River to limit and support the pontoon 2. The pontoon 2 is constrained by the positioning pile limiting device 3.21.

[0062] When the water level of the Yangtze River is above the middle water level, the pontoon 2 floats on the water surface, and the positioning piles 3 respectively play a role in horizontal plane positioning for the water intake pontoon 1 and the pontoon 2, so that the water intake pontoon 1 and the pontoon 2 float up and down along the positioning piles 3 and rise and fall with the rise and fall of the water level of the Yangtze River.

[0063] When the water level of the Yangtze River is below the middle water level, the positioning piles 3 play a role in horizontal plane positioning for the water intake pontoon 1, so that the water intake pontoon 1 floats up and down along the positioning piles 3 and rises and falls with the rise and fall of the water level of the Yangtze River; the floating pontoon 2 is limited by the limiting device 3.21 on the positioning piles 3, and the floating pontoon 2 is placed on the limiting device 3.21, and the floating pontoon 2 will not rise and fall with the rise and fall of the water level.

[0064] When the water intake pontoon needs to be maintained and overhauled, the maintenance personnel go up and down the water intake pontoon 1 through the manhole 8 and the stairs 9 to perform maintenance and overhaul operations, which is convenient and safe to operate.

[0065] The positioning type floating pontoon water intake process facilities of the present invention are simple, the engineering investment is small, the water intake efficiency is high, and the facility installation and maintenance are convenient.

[0066] The positioning floating pontoon water intake process of the present invention is arranged at the rear edge of the high-pile wharf along the direction of water flow, and can be protected by the wharf structure, ensuring that the water intake facilities are not hit by passing ships and floating objects. The drainage pipe is arranged along the wharf approach bridge deck, and there is no need to set up a drainage pipe rack perpendicular to the water flow direction. Manholes and stairs are arranged on the wharf surface. Operators can go up and down the water intake pontoon for maintenance and inspection through the stable manhole 8 and stairs 9 without the help of a small boat. It is safe and convenient, fully relying on the existing facilities of the wharf project, and the economic benefits of the project are obvious.

[0067] Other parts not described belong to the prior art.

Claims

1. A method for taking water from a positioning pontoon arranged at the rear edge of a high-pile wharf. Features: The following steps are included: Step 1: Install the positioning floating pontoon water intake system arranged at the rear edge of the high-pile wharf; Relying on the high-pile dock as a cover, a plurality of positioning piles (3) are arranged at the rear edge of the dock, the positioning piles (3) limit the position of the water intake pontoon (1) and the floating pontoon (2), the water intake pump (4) is arranged on the water intake pontoon (1), and the drainage pipe (6) is arranged in sections along the water intake pontoon (1), the floating pontoon (2) and the dock approach bridge; A manhole (8) and a staircase (9) are arranged at the rear edge of the dock surface corresponding to the water intake pontoon (1); wherein the staircase (9) is arranged close to the water intake pontoon (1); Step 2: Take water from the water pump; When the water intake level is at the lowest water level or between the middle water level and the lowest water level, the water intake pontoon (1) floats on the water surface at the water level, the floating pontoon (2) is fixed on the positioning pile (3) through the limiting device (3.21), and is located above the side of the water intake pontoon (1) and above the water level, and the drainage pipe (6) between the approach bridge deck (7) and the floating pontoon (2), and the drainage pipe (6) between the floating pontoon (2) and the water intake pontoon (1) are connected in sequence through the hose (5) to form a continuous inclined water intake structure; water is taken in through the water intake pump (4) on the water intake pontoon (1), and the taken water is transported to the shore side land along the drainage pipe (6); When the water intake level is at an intermediate water level or between the highest water level and the intermediate water level, the water intake pontoon (1) and the floating pontoon (2) both float on the water surface at the water level, and the drainage pipe (6) between the approach bridge deck (7) and the floating pontoon (2) and the drainage pipe (6) between the floating pontoon (2) and the water intake pontoon (1) are sequentially connected to a continuous partially inclined and partially horizontal water intake structure through a hose (5); water is taken in by a water intake pump on the water intake pontoon, and the taken water is transported to the shore side land along the drainage pipe; When the water intake level is at the highest water level, the water intake pontoon (1) and the floating pontoon (2) both float on the water surface at the water level, and the drainage pipe (6) between the approach bridge deck (7) and the floating pontoon (2), and the drainage pipe (6) between the floating pontoon (2) and the water intake pontoon (1) are sequentially connected through a hose (5) to form a continuous horizontal water intake structure; water is taken in by a water intake pump on the water intake pontoon, and the taken water is transported to the shore side land along the drainage pipe; Step 3: Maintenance and inspection of upper and lower water intake pontoons; Inspection and maintenance personnel go up and down the water intake pontoon (1) through the manhole (8) and the stairs (9) to perform maintenance and inspection operations.

2. The method for taking water from a positioning pontoon arranged at the rear edge of a high-pile wharf according to claim 1, Features: The positioning pontoon water intake system arranged at the rear edge of the high-pile dock comprises a water intake pontoon (1), a pontoon (2), positioning piles (3), a water intake pump (4), a hose (5), a drainage pipe (6), a manhole (8) and a staircase (9); The water-taking pontoon (1) floats on the water surface; The positioning piles (3) are arranged at the rear edge of the high-pile wharf; The positioning piles (3) are vertically inserted into the mud surface and are arranged parallel to the bridge approach pile foundation of the bridge approach surface (7); There are a plurality of positioning piles (3), and the plurality of positioning piles (3) are arranged in parallel and at intervals; Positioning piles (3) are provided at both the water intake pontoon (1) and the floating pontoon (2); The water intake pontoon (1) and the floating pontoon (2) are both subject to the horizontal limiting effect of the positioning piles (3); The water intake pontoon (1) and the floating pontoon (2) both float up and down along the positioning piles (3); The water intake pontoon (1) is movably connected to the positioning pile (3); The floating pontoon (2) is movably connected to the positioning pile (3); The pontoon (2) is restrained by a positioning pile limiting device (3.21); The water intake pump (4) is arranged on the water intake pontoon (1); The water intake pump (4) is connected to the drainage pipe (6) via a hose (5); The manhole (8) is arranged at the rear edge of the dock surface corresponding to the water intake pontoon (1); The staircase (9) is arranged in the dock pile foundation area below the manhole (8) and is arranged between the pile foundations at the rear edge of the dock close to the water intake pontoon (1); The staircase (9) is located between the lowest water level and the highest water level of the dock.

3. The method for taking water from a positioning pontoon arranged at the rear edge of a high-pile wharf according to claim 2, Features: The drainage pipe (6) comprises a first drainage pipe (6.1), a second drainage pipe (6.2) and a third drainage pipe (6.3); The first drainage pipe (6.1) is located between the water intake pontoon (1) and the floating pontoon (2); The second drainage pipe (6.2) is located between the pontoon (2) and the approach bridge deck (7); The third drainage pipe (6.3) is arranged along the length direction of the approach bridge deck (7); The hose (5) is arranged respectively at the connection between the first drain pipe (6.1) and the second drain pipe (6.2), and at the connection between the second drain pipe (6.2) and the third drain pipe (6.3); The first drainage pipe (6.1) is connected to the water intake pump (4) via a hose (5).

4. The method for taking water from a positioning pontoon arranged at the rear edge of a high-pile wharf according to claim 3, Features: The positioning pile (3) comprises a first positioning pile (3.1) and a second positioning pile (3.2); The first positioning pile (3.1) is arranged at the water intake pontoon (1) and is movably connected to the water intake pontoon (1); The second positioning pile (3.2) is arranged at the pontoon (2) and is movably connected to the pontoon (2).

5. The method for taking water from a positioning pontoon arranged at the rear edge of a high-pile wharf according to claim 4, Features: The limiting device (3.21) is arranged on the second positioning pile (3.2) and is located below the floating pontoon (2). The limiting device (3.21) is installed in the middle of the second positioning pile (3.2) to limit and support the floating pontoon (2) and is located below the side of the approach bridge deck (7).

6. The method for taking water from a positioning pontoon arranged at the rear edge of a high-pile wharf according to claim 5, Features: A slide groove is provided on the first positioning pile (3.1); the water intake pontoon (1) and the first positioning pile (3.1) are slidably connected via the slide groove structure; There are a plurality of first positioning piles (3.1), and the plurality of first positioning piles (3.1) are arranged around the water intake pontoon (1); A slide groove is provided on the second positioning pile (3.2); the floating pontoon (2) and the second positioning pile (3.2) are slidably connected via the slide groove structure; There are a plurality of second positioning piles (3.2), and the plurality of second positioning piles (3.2) are arranged on both sides of the pontoon (2).

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