CN219430892U

CN219430892U - Water intake system

Info

Publication number: CN219430892U
Application number: CN202320643974.6U
Authority: CN
Inventors: ***
Original assignee: Nongfu Spring Co Ltd
Current assignee: Nongfu Spring Co Ltd
Priority date: 2023-03-28
Filing date: 2023-03-28
Publication date: 2023-07-28
Anticipated expiration: 2033-03-28

Abstract

The application provides a water intake system, it includes water intake device, and water intake device includes float, water intake pipe and counter weight, and float and counter weight are connected in the upper and lower both ends of water intake pipe for the water intake pipe keeps the depth of predetermineeing below the liquid level, is equipped with water intake and delivery port on the water intake pipe, makes water get into in the water intake pipe through the water intake, and flows from the delivery port. Thus, the high-quality middle water can be conveniently taken out.

Description

Water intake system

Technical Field

The application relates to the technical field of water resource taking equipment, in particular to a water taking system.

Background

In general, drinking water enterprises and tap water companies need to take water from water sources such as lakes or reservoirs, and in the water taking process, the water is expected to be clear and water temperature stable and high-quality water in the water sources such as lakes or reservoirs. Generally, clear, water of stable quality is located in the middle layer, not near the liquid surface, nor near the bottom. However, how to conveniently obtain ideal high-quality middle-layer water has been a difficult problem.

Disclosure of Invention

One technical problem to be solved by the present application is: convenient for taking the high-quality middle water.

In order to solve the above technical problem, the present application provides a water intake system, which includes:

The water taking device comprises a floater, a water taking pipe and a counterweight, wherein the floater and the counterweight are connected to the upper end and the lower end of the water taking pipe, so that the water taking pipe is kept at a preset depth below the liquid level, and the water taking pipe is provided with a water taking hole and a water outlet, so that water enters the water taking pipe through the water taking hole and flows out of the water outlet.

In some embodiments, the intake is positioned above the water outlet such that water flows from top to bottom after entering the intake.

In some embodiments, the water intake includes a water filter, and the water filter hole on the sidewall of the water filter serves as the water intake.

In some embodiments, the filter tube is a wedge wire filter tube.

In some embodiments, the float is configured to at least one of:

the floater is filled with gas;

the floater is positioned below the liquid level;

the floater is columnar;

the axis of the float extends vertically.

In some embodiments, the float is below the liquid level, and the water intake device further comprises a float connected above the float, and at least a portion of the float is above the liquid level; and/or the float is positioned below the liquid level, and the distance between the float and the liquid level is greater than or equal to 5m.

In some embodiments, the float is positioned below the liquid level and the distance between the float and the liquid level is greater than or equal to 7m.

In some embodiments, the counterweight is configured to at least one of:

the counterweight comprises a shell and a filler, and the filler is arranged in the shell;

the counterweight is supported by the bracket, so that a space is reserved between the counterweight and the water bottom;

the counterweight is rectangular.

In some embodiments, the water intake device comprises a spreader, the counterweight being connected to the underside of the water intake pipe by the spreader, the spreader not passing through the water intake pipe and/or the float; and/or the water taking system comprises a pulling piece, one end of the pulling piece is connected with the water taking device, and the other end of the pulling piece is positioned on the shore for pulling.

In some embodiments, the distance between the intake and the water bottom is greater than 10m.

In some embodiments, the distance between the intake and the water bottom is 10-40 m.

In some embodiments, the water intake device further comprises a regulating device, wherein the regulating device is communicated with the water intake pipe to introduce a backflushing medium into the water intake pipe to backflush the water intake pipe; and/or the regulating and controlling device regulates the buoyancy of the water taking device in water.

In some embodiments, the regulating device comprises a backwash tube that communicates the water intake tube with the media source to cause backwash media to flow from the media source to the water intake tube; and/or the regulating device comprises a regulating cylinder, the regulating cylinder is connected with the water intake pipe, and the pressure in the regulating cylinder is adjustable so as to regulate the buoyancy of the water intake device in water.

In some embodiments, the regulating device comprises a recoil tube and an adjustment cylinder, the recoil tube being in communication with the water intake tube through the adjustment cylinder.

In some embodiments, the adjusting cylinder is connected to the lower end of the water intake pipe, the counterweight is connected to the lower end of the adjusting cylinder, and the water intake device further comprises a connecting pipe through which the adjusting cylinder communicates with the water intake pipe.

In some embodiments, the connecting tube is arranged outside the adjusting cylinder, or the connecting tube is arranged inside the adjusting cylinder and extends upwards to the outside of the adjusting cylinder to be communicated with the water intake tube.

In some embodiments, the connecting pipe is arranged outside the adjusting cylinder, and a control valve is arranged on the connecting pipe and controls the on-off of the connecting pipe; or, the connecting pipe is arranged inside the adjusting cylinder and comprises two vertical parts and a transverse part connected between the two vertical parts, the lower ends of the two vertical parts extend into the adjusting cylinder and are communicated with the adjusting cylinder, and the upper ends of the two vertical parts extend upwards to the upper part of the adjusting cylinder and are communicated with the water intake pipe through the transverse part.

In some embodiments, the backflushing medium comprises a gas and/or a liquid.

In some embodiments, the water intake system further comprises a pumping system comprising a water conduit and a pump, the water conduit communicating a water outlet of the water intake conduit with an inlet of the pump, and an outlet of the pump being connected with the water usage device to pump water entering the water intake conduit to the water usage device, the pump being mounted to the bank.

In some embodiments, the pumping system is configured to at least one of:

the water diversion pipe is a steel wire mesh skeleton polyethylene composite pipe;

the pump is a deep well submersible pump;

the penstock and/or pump is disposed below the liquid level.

In some embodiments, the pumping system further comprises a sleeve mounted to the bank, the pump being disposed in the sleeve such that the pump is mounted to the bank, an inlet of the pump communicating with the penstock through the sleeve such that water flowing into the penstock from the water intake flows into the pump via the sleeve.

In some embodiments, the pumping system is configured to at least one of:

the angle between the sleeve and the horizontal plane is greater than or equal to 45 degrees and less than 90 degrees;

the pumping system further comprises a first limiting device, wherein the first limiting device is arranged in the sleeve and limits the pump;

the pumping system further comprises a second limiting device which is arranged at the position of the water conduit connected with the sleeve and limits the water conduit.

In some embodiments, the first stop means comprises a plastic spacer, the plastic spacer being positioned below the pump; and/or the second limiting device comprises at least one of a traction piece and a positioning piece, two ends of the traction piece are respectively connected with the water conduit and the sleeve, and the positioning piece is used for fixing the water conduit on the water bottom or the embankment.

In some embodiments, the first stop device comprises at least two plastic spacers arranged at intervals along the circumference of the pump; and/or the second limiting device comprises at least two traction pieces, and the at least two traction pieces are connected to different positions of the water conduit.

Because the upper end and the lower end of the water intake pipe are respectively connected with the floater and the counterweight, the water intake pipe between the floater and the counterweight is positioned at a preset depth below the liquid level, thereby being convenient for taking high-quality middle water.

Other features of the present application and its advantages will become apparent from the following detailed description of exemplary embodiments of the present application, which proceeds with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a water intake system according to an embodiment of the present application.

Fig. 2 is an enlarged schematic view of a portion of fig. 1 at a water intake device.

Fig. 3 is a partial cross-sectional view of the filter tube of fig. 2.

Fig. 4 is an enlarged schematic view of a portion of fig. 2 at a regulating device.

Fig. 5 is an enlarged schematic view of a portion of fig. 1 at a pump.

Fig. 6 is a schematic structural view of the steel wire mesh skeleton polyethylene composite pipe of fig. 5.

Fig. 7 is an enlarged partial schematic view of a modification of the embodiment shown in fig. 1 at a regulating device.

Reference numerals illustrate:

100. a water intake system; 101. a water intake device; 102. a pumping system;

1. a float;

2. a water intake pipe; 21. a water filtering pipe; 22. a communicating pipe; 23. a water intake; 25. wedge wire water filtering pipe; 26. wedge wire; 27. a support; 28. a water filtering hole;

3. a counterweight; 31. a bracket; 32. a pulling member; 33. a lifting appliance; 34. a hanging ring; 35. a cable chain;

4. a regulating device; 41. a backwash tube; 42. an adjustment cylinder; 43. a connecting pipe; 431. a transverse portion; 432. a vertical portion; 433. a through hole; 44. a control valve; 45. a first regulating valve; 46. a second regulating valve; 47. a ball valve; 48. a branch pipe;

51. a buoy; 52. a tee joint; 53. a blind plate;

6. a water conduit; 61. a steel wire mesh skeleton polyethylene composite pipe; 62. an outer tube; 63. a steel wire layer; 64. an inner tube;

71. A sleeve; 72. a pump; 73. an inlet; 74. an outlet; 75. deep well submersible pumps; 76. a buttress;

8. a first limiting device; 81. A plastic cushion block;

9. a second limiting device; 91. A pulling member; 92. A positioning piece;

200. a water source; 201. a liquid surface; 202. a water bottom; 203. a bank;

300. and (5) a water using device.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the inventors, are within the scope of the present application, based on the embodiments herein.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In the description of the present application, it should be understood that, where azimuth terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal", and "top, bottom", etc., indicate azimuth or positional relationships generally based on those shown in the drawings, only for convenience of description and simplification of the description, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

In the description of the present application, it should be understood that, the terms "first," "second," etc. are used for defining the components, and are merely for convenience in distinguishing the corresponding components, and if not otherwise stated, the terms are not to be construed as limiting the scope of the present application.

In addition, the technical features described below in the different embodiments of the present application may be combined with each other as long as they do not collide with each other.

In water sources such as lakes and reservoirs, water quality often has layering phenomenon. In general, there are floats in the surface water near the liquid surface, the water temperature is greatly affected by the seasonal variation, and sludge is also present in the bottom water near the water bottom, so that more microorganisms and anaerobic bacteria exist in the surface water and the bottom water, therefore, the surface water and the bottom water are usually not high-quality water, but middle-layer water located between the surface water and the bottom water, especially middle-layer water far away from the shore, is the most clear and high-quality water with the most stable water temperature, and is the water which is hoped to be taken by drinking water enterprises and tap water companies. The quality water is obtained, so that the water treatment workload and the process production cost can be greatly reduced, and the image of enterprises can be improved, and the method is of great importance.

However, how to conveniently obtain high-quality middle-layer water is always a difficult problem for drinking water enterprises and tap water companies.

In the related art, a floating ship type or truss type water intake mode is generally adopted for taking water.

The water taking method of the floating pontoon is that a floating pontoon is arranged in a water body, water taking equipment is arranged in a cabin, and the water taking equipment is connected with a water delivery pipe on the shore through a pipeline, so that the water taking purpose is realized. However, this floating vessel type water intake method has the following problems:

(1) It is difficult to meet the demand for the use of high quality middle water. On the one hand, the water taking position of the pontoon is greatly influenced by the lifting and jolting of the liquid level, cannot be fixed relative to the water bottom, cannot finish the water taking process of the fixed position, is unstable in taken water quality and easy to change, and is difficult to meet the taking requirement of middle-layer water in the preset depth. On the other hand, this floating vessel type water intake system is limited by the structure, the distance from the shore is generally not more than 80m, and middle water which is far away from the shore is difficult to be taken. Therefore, the floating ship type water taking mode is difficult to obtain middle-layer water with preset depth far away from the shore, and the taking requirement of high-quality middle-layer water is difficult to meet.

(2) Affecting vessel voyage. The floating vessel floats on the water surface and affects the vessel's voyage.

(3) Water leakage is easy. The water taking mode of the pontoon is greatly influenced by wind and waves, the erected pipeline shakes for a long time, water seepage and water leakage are easy to occur at the interface, and the water taking effect is influenced.

Truss type water taking mode is to build truss on shore to support pipeline and to set the pump connected to the pipeline inside lake for taking water. In the water taking mode, the truss is in a cantilever mode, and the offshore distance cannot be too far, and is generally within 35m or 40m, due to the limitation of the structure and the cost. Moreover, the truss has longer infrastructure period, the truss is very complex and dangerous to splice and install in an air segment, and the engineering cost is relatively high. Meanwhile, the truss is greatly impacted by wind and water waves, easy to rust and break after long-term use, high in risk and needs to be preserved every two years.

In addition, there are water taking modes by constructing a platform or a pump station in water, other than a floating ship type or truss type water taking mode, but such water taking modes are more expensive in construction engineering cost under water, and are difficult or unwilling to bear by general units.

Therefore, in the related art, the water taking mode is difficult to conveniently obtain high-quality middle water with preset depth far away from the shore, and the taking requirement of the high-quality middle water is difficult to be effectively met. Therefore, how to obtain ideal middle-layer high-quality water without being limited by the position (depth and offshore distance) becomes a problem to be solved urgently.

Aiming at the situation, the application provides a water taking system which is convenient for taking high-quality middle-layer water.

Fig. 1 to 7 exemplarily show the structure of the water intake system of the present application.

Referring to fig. 1-7, in the present application, a water intake system 100 includes a water intake device 101. The water intake device 101 includes a float 1, a water intake pipe 2, and a counterweight 3. The float 1 and the balance weight 3 are connected to the upper and lower ends of the water intake pipe 2 such that the water intake pipe 2 is maintained at a predetermined depth below the liquid level 201, and the water intake pipe 2 is provided with a water intake 23 and a water outlet (not shown) such that water enters the water intake pipe 2 through the water intake 23 and flows out of the water outlet.

In the above-mentioned scheme, the water intake pipe 2 is used for taking water, and the water enters the whole water intake system 100 through the water intake pipe 2, so the position of the water intake pipe 2 is the water intake position of the water intake system 100.

Because the upper and lower both ends of the water intake pipe 2 are respectively connected with the float 1 and the counterweight 3, the buoyancy of the float 1 is always upward, the dead weight of the counterweight 3 is always downward, and the water intake pipe 2 between the float 1 and the counterweight is positioned at a preset depth below the liquid level 201, therefore, the water intake position can be fixed at a distance from the height of the water bottom 202, and is not influenced by the lifting of the liquid level 201, thereby conveniently taking water with the preset depth. It can be seen that the water intake device 101 is provided to facilitate the access to high quality middle water.

Moreover, based on the water intake device 101 that sets up, only need adjust buoyancy to the float 1, the dead weight of counter weight 3 and the dead weight of intake pipe 2 etc. or adjust the length of hoist 3 to connect counter weight 3 and intake pipe 2, make intake pipe 2 in the upper and lower both ends atress balance of different default depth departments, can be with intake pipe 2 location in different degree of depth positions, realize the adjustment to the intake depth, like this, intake system 100 can all get water in different degree of depth positions, conveniently realize taking to the middle level water in different degree of depth.

It can be seen that the water intake device 101 and the water intake system 100 provided can facilitate the taking of high-quality middle-layer water.

To enable the access to better quality middle water, in some embodiments, the distance between the intake 23 and the water bottom 202 is greater than 10m, for example, the distance between the intake 23 and the water bottom 202 is 15-40 m. At this time, the water intake 23 is relatively suitable in distance from the water bottom 202, and the water quality is stable, so that the bottom water containing silt and plankton can be reliably prevented from being taken, and the taking requirement of high-quality middle water can be better met. In addition, the bottom water containing silt and plankton can be reliably prevented from being taken out, so that structural damage of the water intake system 100 caused by sundries such as silt in water can be prevented, structural reliability of the water intake system 100 can be improved, and service life of the water intake system 100 can be prolonged.

In the foregoing, the float 1, the water intake pipe 2, and the counterweight 3 are important constituent parts of the water intake device 101. Next, the float 1, the water intake pipe 2, and the counterweight 3 will be further described, respectively.

First, the float 1 will be further described.

Referring to fig. 1 and 2, in some embodiments, the float 1 is configured to be at least one of:

the float 1 is filled with gas;

the float 1 is columnar;

the axis of the float 1 extends vertically;

the float 1 is located below the liquid level 201.

The float 1 is filled with gas, so that the internal and external stress of the float 1 is balanced and is not easy to deform, the risk of water seepage of a welding line is reduced, and the service life is prolonged.

The float 1 is columnar, is not rectangular or flat, has a simple structure, is convenient to keep vertical in water, and enables the axis to extend vertically. The axis of the floater 1 extends vertically, so that the water intake pipe 2 can be better pulled, and the floater is not easy to fall.

In addition, the float 1 is configured to be positioned below the liquid level 201, so that on one hand, the sailing of the ship is not influenced like when the float 1 floats on the liquid level 201, the influence of the water taking system 100 on normal sailing is reduced, and the sailing safety is improved; on the other hand, the float 1 can be made almost unaffected by the water level rise and fall and waves, with high stability.

In case the float 1 is located below the liquid level 201, the distance between the float 1 and the liquid level 201 may be greater than or equal to 5m, e.g. 5m, to more reliably reduce the influence of the float 1 on the sailing of the ship. In the case where there is a rise or fall in the liquid surface 201, the distance between the float 1 and the liquid surface 201 may specifically be the difference in height between the float 1 and the lowest liquid surface 201 (low liquid level L2).

In addition, in the case where the float 1 is located below the liquid surface 201, the water intake device 101 may further include a float 51, the float 51 being connected above the float 1, and at least part of the float 51 being located above the liquid surface 201. In this way, the horizontal position of the water intake point can be conveniently determined on the premise that the float 1 is positioned below the liquid level 201.

Next, the water intake pipe 2 will be further described.

The intake pipe 2 has an intake port 23 and a water outlet port which are openings for water to enter and exit. During water intake, water enters the water intake pipe 2 through the water intake 23, flows out of the water intake pipe 2 through the water outlet, and flows to the water device 300 (for example, water treatment equipment of a water works).

Referring to fig. 2, in some embodiments, the water intake 23 is located above the water outlet such that water flows from top to bottom after entering the water intake pipe 2. In this case, water flows through the water intake pipe 2 from top to bottom, so that an upward force can be applied to the water intake device 101, and the corresponding upward force can be used together with the buoyancy of the float 1 to maintain the water intake pipe 2 at a predetermined depth below the liquid surface 201, so that the volume of the float 1 is more advantageously reduced, and the stability of the system is improved, so that the influence of the horizontal shaking of the water flow is reduced, compared with the case where water flows through the water intake pipe 2 from bottom to top, and the downward force is applied to the water intake device 101.

In the present application, the water intake pipe 2 may be a common pipe, and then the water intake 23 is formed by opening the common pipe. Alternatively, referring to fig. 2, the water intake pipe 2 may be configured to include the water filter pipe 21, and water filter holes 28 on the side wall of the water filter pipe 21 are used as the water intake 23.

Because compare with ordinary pipe, the drainage pipe 21 not only can get water, but also can filter water at the water intaking in-process, reduce the impurity in the water, consequently, more be favorable to promoting the quality of water stability of the water of getting, this not only can satisfy the higher requirement to quality of water better, but also can further reduce the risk that structural component damaged because of the impurity, improve structural reliability.

Meanwhile, the water filtering pipe 21 can be used as the water intake 23 by the water filtering holes 28 without separate openings, so that the water intake 23 is formed, and the processing cost is reduced. Moreover, since a plurality of water filtering holes 28 are usually arranged on the side wall of the water filtering pipe 21, the water filtering holes 28 can be used as the water intake 23 together for water supply, thereby being beneficial to enlarging the water inlet area and improving the water inlet efficiency.

In addition, the water filtering holes 28 on the side wall of the water filtering pipe 21 are used as the water intake 23, so that the water intake 23 is conveniently located above the water outlet, and only the water outlet is needed to be arranged below all the water filtering holes 28, so that the method is simple and convenient.

The filter tube 21 may be various filter tubes, and accordingly, the filter holes 28 may have any shape such as a circular shape, a rectangular shape, a V-shape, or a trapezoid shape. As an example, referring to fig. 2 and 3, in some embodiments, the filter tube 21 is a wedge wire filter tube 25. As shown in fig. 3, the wedge wire filter tube 25 is a filter tube in which wedge (trapezoid) wires 26 are wound around a support 27 so that V-shaped filter holes 28 are formed between adjacent wedge wires 26. When the water filtering pipe 21 is the wedge-shaped wire water filtering pipe 25, the water filtering holes 28 are V-shaped, so that compared with water filtering holes in other shapes such as round shapes, the risk that organisms such as fish and shrimp in water enter the water taking system 100 through the water filtering holes 28 is more favorably reduced, the structural reliability is favorably improved, the influence of the water taking process on the ecological environment is favorably reduced, and a better ecological protection effect is realized.

Next, the counterweight 3 will be further described.

As an example of the weight 3, the weight 3 may be a solid weight, or the weight 3 may include a housing and a filler (e.g., yellow sand) contained in the housing. Compared with the solid weight, when the weight 3 comprises a shell and a filler, the installation is more flexible and the adjustment is more convenient.

The shape of the counterweight 3 may be varied, for example circular or rectangular. Since the water bottom 202 is not necessarily flat, it is difficult for the circular weight 3 to be stably maintained and easily displaced, while the rectangular weight 3 can be more stably maintained at the water bottom 202 and is not easily displaced.

In addition, referring to fig. 2, in some embodiments, the counterweight 3 is not directly contacted with the water bottom 202, but is supported by the bracket 31, so that a space exists between the counterweight 3 and the water bottom 202, which is beneficial to preventing the counterweight 3 from sinking into the sludge, so as not to increase the difficulty of taking out the water taking device 101 due to the sinking of the counterweight 3 into the sludge, and even to cause the water taking device 101 to be unable to take out. It can be seen that, through setting up support 31, support counter weight 3 in the submarine 202 top, be favorable to preventing that water intaking device 101 can't be taken out, reduce water intaking device 101's the degree of difficulty of taking out, promote water intaking device 101's the convenience of taking out, make things convenient for water intaking device 101's change and maintenance.

Furthermore, to facilitate the removal of the water intake device 101, referring to fig. 2, in some embodiments, the water intake system 100 further includes a pulling member 32 (e.g., a wire rope) on the basis of the float 1, the water intake pipe 2, and the counterweight 3, wherein one end of the pulling member 32 is connected to the water intake device 101 (e.g., to the counterweight 3) and the other end is located on shore for pulling. In this way, when it is necessary to take out the water intake device 101, the pulling member 32 can be pulled on shore, so that the underwater portion of the water intake device 101 can be pulled out easily.

In various embodiments, the counterweight 3 may be connected to the underside of the water intake pipe 2 by means of a spreader 33. In this case, referring to fig. 2, in some embodiments, the hanger 33 does not pass through the water intake pipe 2 and/or the float 1, and at this time, the connection and the installation are made easier than in the case where the hanger 33 passes through the water intake pipe 2 or the float 1.

The float 1, the water intake pipe 2 and the counterweight 3 of the water intake device 101 are further described above, however, it is to be understood that the water intake device 101 may include other structural components in addition to the float 1, the water intake pipe 2 and the counterweight 3, and the water intake system 100 may include other structural components in addition to the water intake device 101.

For example, referring to fig. 1-4, in some embodiments, the water intake device 101 includes not only the float 1, the water intake tube 2, and the counterweight 3, but also the regulating device 4. The regulating device 4 is used for backflushing the water intake pipe 2 and/or regulating the buoyancy of the water intake device 101 in water.

The water intake pipe 2 is backflushed by the regulating and controlling device 4, so that the risk of sundry blockage can be reduced, the working reliability can be improved, the service life can be prolonged, the maintenance times can be reduced, the maintenance period can be prolonged, and the maintenance cost can be reduced. In order to enable the regulating device 4 to perform backflushing on the water intake pipe 2, referring to fig. 2 and 4, the regulating device 4 is communicated with the water intake pipe 2 to introduce backflushing medium into the water intake pipe 2 to perform backflushing on the water intake pipe 2. The backflushing is a method of cleaning a backflushed object by flowing a backflushing medium in a direction opposite to a flow direction of fluid in the backflushed object. The backflushing medium may include a gas (e.g., air) and/or a liquid (e.g., water). When the backflushing medium comprises only gas, gas backflushing can be achieved. When the backflushing medium comprises only liquid, a liquid backflushing function may be achieved. When the backflushing medium comprises a gas and a liquid, a gas-liquid mixed backflushing can be achieved. The gas backflushing is utilized, so that a backflushing function can be realized, the coordinates of the water taking position in the horizontal plane can be determined visually according to the position of the bubble floating on the water surface conveniently, the buoy 51 is not required to be arranged on the liquid surface 201, the coordinates of the water taking position in the horizontal plane can be determined conveniently and accurately, and the gas backflushing device is particularly suitable for the conditions that some water is affected by navigation and the buoy 51 cannot be arranged on the liquid surface 201.

On the one hand, when the water taking device 101 needs to be taken out, the buoyancy of the water taking device 101 is increased by the regulating device 4, so that the water taking device 101 can be pulled up by only small pulling force, and the water taking device 101 is convenient to take out.

As an embodiment of the regulating device 4 capable of regulating the buoyancy of the water intake device 101, referring to fig. 2 and 4, the regulating device 4 includes a regulating cylinder 42, the regulating cylinder 42 is connected with the water intake pipe 2, and the pressure in the regulating cylinder 42 is adjustable to regulate the buoyancy of the water intake device 101 in water. Thus, the buoyancy of the water taking device 101 can be adjusted by adjusting the pressure in the adjusting cylinder 42, for example, by adjusting the air in the adjusting cylinder 42, so that the water taking requirements of different demands and different depths of the water taking device 101 are met, and the water taking device is simple and convenient.

In addition, referring to fig. 2 and 4, in some embodiments, the regulating device 4 includes both the backflushing tube 41 and the regulating tube 42, and the backflushing tube 41 communicates with the water intake tube 2 through the regulating tube 42. At this time, the regulating device 4 has both a back flushing function and a buoyancy regulating function, and the back flushing pipe 41 is communicated with the water intake pipe 2 through the regulating cylinder 42, so that on one hand, when back flushing is needed, the back flushing pipe 41 and the regulating cylinder 42 can realize the back flushing function together, and on the other hand, when buoyancy is needed to be regulated, the pressure in the regulating cylinder 42 can be regulated by only filling gas into the regulating cylinder 42 through the back flushing pipe 41, and further, the buoyancy regulation of the water intake device 101 is realized, so that the regulating device is simple and convenient. The recoil tube 41 and the regulating cylinder 42 are all multipurpose, so that the structure is simple and the cost is low.

Wherein, in order to achieve the communication between the adjusting cylinder 42 and the water intake pipe 2, referring to fig. 2, 4 and 7, in some embodiments, the adjusting cylinder 42 is connected to the lower end of the water intake pipe 2, the counterweight 3 is connected to the lower end of the adjusting cylinder 42, and the water intake device 101 further includes a connection pipe 43, through which the adjusting cylinder 42 communicates with the water intake pipe 2. At this time, the counterweight 3 is connected with the water intake pipe 2 through the adjusting cylinder 42, and the buoyancy of the adjusting cylinder 42 can cooperate with the downward force borne by the water intake pipe 2 such as the gravity of the counterweight 3, so as to position the water intake pipe 2 at a preset depth below the liquid level 201, thereby realizing the access to the water resource at the preset depth.

The connection pipe 43 may be provided outside the adjustment cylinder 42 or inside the adjustment cylinder 42. For example, referring to fig. 2 and 4, in some embodiments, the connection pipe 43 is disposed outside the adjustment cylinder 42, and a control valve 44 is provided on the connection pipe 43, and the control valve 44 controls the connection pipe 43 to be opened or closed, so that whether or not the backflushing medium is introduced into the water intake pipe 2 can be controlled by controlling the connection or disconnection of the control valve 44. For another example, referring to fig. 7, in some embodiments, a connection pipe 43 is disposed inside the adjustment cylinder 42 and extends upward out of the adjustment cylinder 42 to communicate with the water intake pipe 2, so that the adjustment cylinder 42 can also communicate with the water intake pipe 2 through the connection pipe 43 to introduce a backwash medium into the water intake pipe 2 via the connection pipe 43 to realize a backwash function and a buoyancy adjustment function.

As another example, returning to fig. 1, in some embodiments, the water intake system 100 includes not only the water intake device 101, but also the pumping system 102. The pumping system 102 includes the penstock 6 and the pump 72, the penstock 6 communicates with the water outlet of the penstock 2 and the inlet 73 of the pump 72, and the outlet 74 of the pump 72 is connected with the water usage device 300 to pump water into the penstock 2 to the water usage device 300. In this way, the water intake system 100 can not only take water to a predetermined depth by using the water intake device 101, but also smoothly convey the taken water to the water using device 300 by using the pumping system 102, so as to perform subsequent treatment or use of the water.

Wherein, referring to fig. 1 and 6, in some embodiments, the pump 72 of the pumping system 102 is mounted on the bank 203. Because the distance that the water conduit 6 can be laid can be longer in the case where the pump 72 is fixed to the bank 203, so that the water taking position is far away from the shore, the horizontal distance of the water taking position is advantageously increased, the taking of middle-layer water in a farther position is realized, and the quality of the taken water is further improved.

With pump 72 mounted on bank 203, referring to fig. 5, in some embodiments pumping system 102 further comprises a sleeve 71, sleeve 71 mounted on bank 203, pump 72 disposed in sleeve 71 such that pump 72 is mounted on bank 203, and inlet 73 of pump 72 communicates with penstock 6 through sleeve 71 such that water in penstock 6 flows into pump 72 via sleeve 71.

Since the pump 72 is provided in the sleeve 71, the construction and installation of the pump 72 on the bank 203 can be realized by only installing the sleeve 71 on the bank 203, and the construction is simplified compared with the method of directly installing the pump 72 on the bank 203, and simultaneously, the pump 72 is not easy to cavitation and the pit is not dug on the bank 203, so that the engineering is greatly simplified. The sleeve 71 which is sleeved outside the pump 72 not only can protect the pump 72 to a certain extent and reduce the damage of abrasion and the like of the pump 72 and the influence of water waves and water surface floaters on the stability of the pump 72, but also can isolate the taken water from the water in the surrounding environment and prevent the taken water from being mixed with the water in the surrounding environment again to deteriorate the water quality. The isolation of the water can be realized without drilling or digging a concrete water delivery pump station, so that the construction cost can be greatly saved and the construction period can be shortened. Furthermore, the provision of the pump 72 in the casing 71 is advantageous in further increasing the offshore distance of the water intake point, because the water level in the casing 71 can be lowered below the liquid level 201 by pumping water from the pump 72, so that water entering from the water intake 23 under the action of the water level difference can automatically reach the inlet 73 of the pump 72 in the casing 71 along the water conduit 6, and thus, the restriction imposed by the laying length of the water conduit 6 can be reduced, so that the water intake position can be further offshore.

Wherein, when the sleeve 71 is mounted to the bank 203, the sleeve 71 may be mounted obliquely or vertically. For example, in some embodiments, the angle between the sleeve 71 and the horizontal plane may be greater than or equal to 45 ° and less than 90 °, at this time, the sleeve 71 and the pump 72 in the sleeve 71 are mounted obliquely, and the oblique angle is larger, which may effectively improve the uniformity of stress of the bearings and the seals of the pump 72, reduce the wear risk of the bearings and the seals, improve the structural reliability, and prolong the service life.

To achieve the mounting of the pump 72 in the sleeve 71, see fig. 5, in some embodiments the pumping system 102 comprises a first stop device 8, the first stop device 8 being arranged in the sleeve 71 and limiting the pump 72. In this way, a stable mounting of the pump 72 in the sleeve 71 can be achieved. In particular, in the case where the sleeve 71 is disposed obliquely, the first stopper 8 is provided to restrict the pump 72, which is more advantageous in improving the mounting stability of the pump 72. Moreover, in the case where the sleeve 71 is disposed obliquely, by designing the first stopper 8, it is also possible to facilitate the mounting of the pump 72 in the sleeve 71 smoothly. For example, referring to fig. 5, in some embodiments, the first stop device 8 includes a plastic spacer 81 (e.g., a nylon spacer), the plastic spacer 81 being padded under the pump 72. In this way, the plastic cushion block 81 not only can support and limit the pump 72 after the pump 72 is installed in the sleeve 71, but also can reduce the resistance of the pump 72 in the process of installing the pump 72 in the sleeve 71, so that the pump 72 can easily slide into the sleeve 71, thereby effectively reducing the assembly difficulty and improving the assembly efficiency. This way of limiting the plastic spacer 81 is particularly suitable for the case where the inclination angle of the sleeve 71 is large (for example, 45 to 90 ° as described above), but if the inclination angle is small, it may be necessary to use another structure such as a pulley to reduce the push-in resistance of the pump 72.

When the plastic cushion block 81 is used for limiting, the number of the plastic cushion blocks 81 in the first limiting device 8 may be two or more. When the first stopper 8 includes at least two plastic spacers 81, the at least two plastic spacers 81 may be spaced apart along the circumference of the pump 72 to more stably support the pump 72 and to more effectively reduce the installation resistance of the pump 72.

As an example of the pump 72 in the foregoing embodiments, referring to fig. 5, the pump 72 is a deep well submersible pump 75. The deep well submersible pump is a water lifting machine with a motor and a water pump which are directly connected into a whole to be submerged into water, and has the advantages of simple structure, high unit efficiency, small circumferential volume, low running noise under water, safe and reliable running, convenient installation and maintenance and the like. The deep well submersible pump 75 is used as the pump 72 for conveying the taken water to the water device 300, so that the water can be pumped reliably, and the pump 72 can be positioned below the liquid level 201, so that the water level is not influenced, and the sailing of a ship is not influenced. Meanwhile, the outlet 74 of the deep well submersible pump 75 is upwards along the axis, is positioned on the axis of the deep well submersible pump 75 and is positioned above the inlet 73 of the deep well submersible pump 75, so that the deep well submersible pump is more suitable for being used in the sleeve 71, particularly the inclined sleeve 71, and can be matched with the sleeve 71, particularly the inclined sleeve 71, so that a safe and reliable water pumping process is realized. In addition, unlike pumps with other outlets such as oil-filled submersible pumps and the like facing upward along the axis, the deep well submersible pump 75 does not adversely affect the water quality when water leaks, and therefore, the deep well submersible pump 75 is also beneficial to ensuring the water quality of the finally taken water as the pump 72 of the present application.

In addition, as an example of the penstock 6 in the foregoing embodiments, referring to fig. 5, in some embodiments the penstock 6 is a steel mesh skeleton polyethylene composite pipe 61.

The steel wire mesh skeleton polyethylene composite pipe 61 is a pipe material which takes a net skeleton formed by spirally winding high-strength steel wires left and right as a reinforcement body, takes high-density polyethylene (HDPE) as a matrix, and tightly connects the steel wire skeleton with inner and outer layers of high-density polyethylene by using high-performance HDPE modified bonding resin.

Fig. 6 further shows the structure of the steel wire mesh skeleton polyethylene composite pipe 61. As shown in fig. 6, the steel wire mesh skeleton polyethylene composite pipe 61 includes an outer pipe 62, a steel wire layer 63 and an inner pipe 64, and the outer pipe 62, the steel wire layer 63 and the inner pipe 64 are sequentially arranged from outside to inside. Wherein the inner tube 64 and the steel wire layer 63 are used for bearing the internal and external pressure of the pipe. The outer tube 62 is primarily used for hot melt joining. The inner tube 64 and the outer tube 62 are formed by hot melt extrusion from PE100 grade raw materials. The steel wire layer 63 is made of HDPE modified material and steel wires wound around the left and right sides, the modified HDPE and the HDPE can be melted into a whole under the heating condition, and meanwhile, the polar bond and the steel wires have extremely strong bonding performance. Thus, the steel wire mesh skeleton polyethylene composite pipe 61 is lighter than water, has excellent flexibility, and has excellent tensile strength, bending strength and durability, so that the steel wire mesh skeleton polyethylene composite pipe 61 is used as the water conduit 6, the water conduit 6 can be conveniently laid underwater, particularly, the water conduit 6 is conveniently laid close to the water bottom 202, meanwhile, the water conduit 6 has certain elasticity when being connected by pipelines, the connection of pipelines is convenient, and the water conduit 6 can well resist the pulling, bending and abrasion caused by water flow movement and the like underwater, the service life of the water conduit 6 under water is effectively prolonged, and the overall working reliability of the water taking system 100 is improved. In addition, the steel wire mesh skeleton polyethylene composite pipe 61 is adopted as the water diversion pipe 6, so that no influence is caused on water quality, and the water use safety can be effectively ensured. Wherein, the water conduit 6 is laid underwater for the whole water conduit 6 is located below the liquid level 201, can effectively avoid the influence of the water conduit 6 to the normal navigation of the ship, is favorable to improving the navigation security.

Where the pumping system 102 includes a casing 71, the penstock 6 is connected to the casing 71. In this case, in order to enhance the reliability of the connection of the penstock 6 to the casing 71, referring to FIG. 5, in some embodiments, the pumping system 102 includes a second stop 9, the second stop 9 being disposed at the location of the penstock 6 where it is connected to the casing 71 and limiting the penstock 6. In this way, the connection reliability of the water conduit 6 and the sleeve 71 can be improved, the water conduit 6 is prevented from being displaced due to the external effect, even broken and leaked, especially, when the sleeve 71 is obliquely arranged, water can generate a reverse thrust opposite to the water flow direction to the water conduit 6 when flowing from the water conduit 6 to the sleeve 71, the reverse thrust is larger, especially when the water intake is larger, therefore, the second limiting device 9 is arranged, and the limiting and stress balance are carried out on the part of the water conduit 6 connected with the sleeve 71, so that the water conduit has important significance.

As an example of the second limiting device 9, referring to fig. 5, the second limiting device 9 includes at least one of a pulling member 91 and a positioning member 92.

Wherein both ends of the pulling member 91 are respectively connected to the penstock 6 and the sleeve 71 to reinforce the penstock 6 by further connecting the penstock 6 to the sleeve 71 to prevent the penstock from turning and the direction of the water flow from being changed, and the generated huge force adversely affects the penstock 6. In particular, with continued reference to fig. 5, in some embodiments the second spacing device 9 includes at least two pull members 91, the at least two pull members 91 being connected to different locations of the penstock 6. In this way, the water conduit 6 can be more stably and reliably restrained and balanced in stress.

The positioning member 92 fixes the water conduit 6 to the water bottom 202, and specifically, the positioning member 92 may include a ring portion and a rod portion, the ring portion is sleeved on the water conduit 6, and the rod portion is connected to the ring portion and inserted into the water bottom 202 or the bank 203 to be fixed. In this way, the water conduit 6 can be reinforced, and the water conduit 6 is effectively prevented from being turned and the water flow direction is changed, so that the generated huge acting force has adverse effect on the water conduit 6.

The present application will be further described with reference to the embodiments shown in fig. 1-6.

In this embodiment, as shown in FIG. 1, the water intake system 100 is used for taking long-distance middle water from the water intake source 200 to achieve access to high-quality middle water. The water source 200 may be various water storage areas such as a lake, a reservoir or the ocean, and in particular, the water source 200 may be a non-flowing water storage area such as a lake (for example, a kiloisland lake) and a reservoir.

As can be seen from fig. 1, in this embodiment, the water source 200 is taken, the liquid level 201 thereof is obviously lifted, and generally lifted between the low liquid level L2 and the high liquid level L3, the normal liquid level L1 is present between the low liquid level L2 and the high liquid level L3, and the limit high level L4 is also present above the high liquid level L3, wherein the annual height difference between the low liquid level L2 and the high liquid level L3 is about 10m, the historical water level difference is close to 20m, which results in a great difficulty in remotely fixing the depth water intake.

To achieve the taking of the long-distance middle water of the water source 200, as shown in fig. 1 to 6, in this embodiment, the water intake system 100 includes a water intake device 101 and a pumping system 102, the water intake device 101 is used to introduce the long-distance middle water of the water source 200 into the water intake system 100, which includes a buoy 51, a float 1, a water intake pipe 2, a regulating device 4 and a counterweight 3 arranged in sequence from top to bottom, and the pumping system 102 is used to pump the long-distance middle water introduced by the water intake device 101 to a water usage device 300, which includes a water conduit 6, a sleeve 71, a pump 72, a first limiting device 8 and a second limiting device 9.

The sleeve 71 is used for being sleeved outside the pump 72, so that the pump 72 is fixedly arranged on the embankment 203 and the pump 72 is communicated with the water conduit 6. As shown in fig. 1 and 5, in this embodiment, the sleeve 71 is a stainless steel circular tube which is fixed to a portion of the bank 203 extending below the liquid surface 201 by the abutment 76 and forms an angle of approximately 50 ° with the horizontal plane. Also, as can be seen in FIG. 5, in this embodiment, the lower end of sleeve 71 is below the low level L2, such that even if the level of the water source 200 drops to the lowest level, the lower end of sleeve 71 remains below the liquid level 201.

A pump 72 is provided in the sleeve 71 for pumping the taken water to drive the long-distance middle-layer water introduced from the water intake device 101 to flow from the water intake device 101 to the water using device 300. In this embodiment, as shown in fig. 5, the pump 72 is a deep well submersible pump 75 which is disposed coaxially with the casing 71 in the casing 71 with its inlet 73 at the axially middle thereof and its outlet 74 above the inlet 73 and facing upward in the axial direction. As can be seen in fig. 5, in this embodiment, the inlet 73 of the deep well submersible pump 75 communicates with the lumen of the casing 71. Also, the inlet 73 of the deep well submersible pump 75 is below the low level L2 such that the deep well submersible pump 75 is still below the liquid level 201 even if the level of the water source 200 drops to the minimum level. In this way, water diversion and pumping can be achieved by utilizing the height difference between the liquid level 201 and the inlet 73 of the deep well submersible pump 75. When water is taken, the deep well submersible pump 75 is started, the water level in the sleeve 71 is reduced, and high-quality water naturally flows to the inlet 73 of the deep well submersible pump 75 from the water taking device 101 under the action of pressure difference, enters the deep well submersible pump 75, and is pumped to the water using device 300 by the deep well submersible pump 75. In this embodiment, the motor of the deep well submersible pump 75 is a variable frequency motor, and a pressure sensor (not shown) is disposed on the pipe of the outlet 74 of the deep well submersible pump 75, so that constant pressure variable frequency water supply can be realized, and energy and electricity saving effects can be achieved.

The first limiting device 8 is disposed in the sleeve 71 and is used for supporting and limiting the deep well submersible pump 75. As shown in fig. 5, in this embodiment, the first stop device 8 includes three plastic spacers 81 (only two of which are shown in fig. 5) that are uniformly arranged along the circumference of the deep well submersible pump 75 to form a triangular support that is stable and reliable. Moreover, because the friction of the three plastic spacers 81 is small, the deep well submersible pump 75 is easily slid into the inclined sleeve 71 during assembly.

The water conduit 6 connects the sleeve 71 and the water intake pipe 2 of the water intake device 101 to guide the long-distance middle-layer water introduced by the water intake device 101 to flow into the sleeve 71. As shown in fig. 1, 5 and 6, in this embodiment, the penstock 6 is a steel wire mesh skeleton polyethylene composite pipe 61 laid along the water bottom 202 and having a first end connected to the lower end of the sleeve 71 for communication of the penstock 6 with the sleeve 71 and a second end connected to the water outlet of the water intake pipe 2 for communication of the penstock 6 with the water intake pipe 2. The steel wire mesh skeleton polyethylene composite pipe 61 has no influence on water quality, so that the water quality safety can be effectively ensured. Moreover, because the steel wire mesh skeleton polyethylene composite pipe 61 has excellent flexibility and has a specific gravity lighter than or close to that of water, the two ends of the pipeline can be blocked to float on the water surface for carrying during installation, the installation difficulty is reduced, and meanwhile, after installation, the steel wire mesh skeleton polyethylene composite pipe can be consistent with the trend of the water bottom 202, and is convenient to connect and fix.

The second limiting device 9 is arranged on the water conduit 6 and limits the water conduit 6. In this embodiment, as shown in fig. 5, the second limiting means 9 comprises two pulling members 91 and one positioning member 92. The two pulling members 91 are pull rods, the two pulling members are obliquely arranged, the first ends of the two pulling members are connected to the same position of the sleeve 71, the second ends of the two pulling members are connected to different positions of the first end of the water conduit 6 to apply pulling force to two different positions of the first end of the water conduit 6, which is used for being connected with the sleeve 71, specifically, the second ends of the two pulling members 91 are connected to two flanges of the first end of the water conduit 6, which are positioned at different axial positions, and the diameter-changing part of the water conduit 6 is arranged between the two flanges, so that the two pulling members 91 apply pulling force to two different positions of the diameter-changing part of the water conduit 6, and the two pulling members can play a role in better limiting and balancing stress. The positioning member 92 includes a ring portion which is fitted over a portion of the water conduit 6 between the two pulling members 91, and a stem portion which extends downward from the ring portion and is inserted into the water bottom 202 or the bank 203 to be fixed. In this way, the force applied to the water conduit 6 by the water flow turning can be effectively resisted, so that the water conduit 6 can be firmly connected with the inclined sleeve 71, and the water leakage risk is reduced. Wherein the stem may be pressed into the water bottom 202 or the bank 203 during the lowering of the sleeve 71.

Based on the pumping system 102 provided, as shown in fig. 1, in this embodiment the penstock 6 may be laid a longer distance, extending from the bank 203 to a location further offshore, enabling convenient access to water at the location further offshore.

The water intake pipe 2 is used for introducing middle-layer water around the water filtering pipe 21 at the horizontal position corresponding to one end of the water diversion pipe 6 far away from the pump 72 into the water intake system so as to realize the taking of the middle-layer water at a long distance. As shown in fig. 1 to 3, in this embodiment, the water intake pipe 2 is suspended at a preset depth below the liquid surface 201 (a distance from the liquid surface 201 is greater than 5m and a distance from the water bottom 202 is 15 to 35 m), and includes a water filter pipe 21 and a communicating pipe 22. The filter tube 21 and the communication tube 22 are connected in order in the top-down direction and communicate with each other. The filter tube 21 is a wedge-shaped wire filter tube 25, which is connected above the communicating tube 22, and the axis extends vertically. A plurality of V-shaped drainage holes 28 are uniformly distributed on the sidewall of the drainage tube 21, and the drainage holes 28 serve as water intake ports 23 and are communicated with the outside, so that water at a preset depth can enter the drainage tube 21 through the drainage holes 28. The communication pipe 22 is a stainless steel round pipe, which is connected to the lower part of the water filter 21, and whose axis extends vertically and is coaxial with the water filter 21. The upper end of the communicating pipe 22 is communicated with the water filter 21, the lower end of the communicating pipe 22 is provided with a water outlet, and the corresponding water outlet is communicated with one end of the water conduit 6 far away from the pump 72 through the tee 52, so that the water intake pipe 2 is communicated with the water conduit 6, and the water entering the water filter 21 from the water filter hole 28 can flow into the water conduit 6 through the communicating pipe 22 and the tee 52.

Because the water filtering pipe 21 is the wedge-shaped wire water filtering pipe 25 and the water filtering holes 28 are V-shaped, water can be filtered, impurities in the obtained middle-layer water are fewer, the water quality is better, underwater organisms such as fish and shrimp can be prevented from entering the water taking system 100, the risk that the underwater organisms such as fish and shrimp are sucked into the water diversion pipe 6 and are stranded by the pump 72 is obviously reduced, and the ecological environment is effectively protected.

The regulating and controlling device 4 is used for realizing the functions of back flushing and buoyancy regulation. As shown in fig. 1 to 4, in this embodiment, the regulating device 4 includes a backwash tube 41, a regulating cylinder 42, a connecting tube 43, a control valve 44, a first regulating valve 45 and a second regulating valve 46. The adjusting cylinder 42 is vertically arranged and connected below the communicating pipe 22, and is connected with the communicating pipe 22 through the tee joint 52, a blind plate 53 is arranged between the tee joint 52 and the adjusting cylinder 42, and the blind plate 53 blocks a port of the tee joint 52, which is connected with the adjusting cylinder 42, so that the adjusting cylinder 42 is not communicated with the water intake pipe 2 through the tee joint 52, water in the water intake pipe 2 does not directly flow into the adjusting cylinder 42 through the tee joint 52, and gas in the adjusting cylinder 42 does not directly flow into the water intake pipe 2 through the tee joint 52, so that the gas entering the adjusting cylinder 42 from the backflushing pipe 41 can only enter the water intake pipe 2 through the connecting pipe 43, and a better gas backflushing effect is achieved. The lower end of the side wall of the regulating cylinder 42 communicates with the communicating pipe 22 through a connecting pipe 43 located outside the regulating cylinder 42, so that the gas entering the regulating cylinder 42 can reversely flow into the water intake pipe 2 via the connecting pipe 43. The control valve 44 is disposed on the connection pipe 43 for controlling the on-off of the connection pipe 43 to control whether the gas in the adjustment cylinder 42 flows upward into the water intake pipe 2 via the connection pipe 43. The lower end of the connecting pipe 43 is also communicated with the outside through a branch pipe 48, and a second regulating valve 46 is arranged on the branch pipe 48, and the second regulating valve 46 controls the on-off of the branch pipe 48. One end of the back flushing pipe 41 is connected to the side wall of the regulating cylinder 42, and the other end extends to the shore and is connected to a compressed air pump located on the shore so that compressed air can be introduced into the regulating cylinder 42 through the back flushing pipe 41. The first regulating valve 45 is disposed on the back-flushing pipe 41, specifically disposed at an end of the back-flushing pipe 41 away from the compressed air pump, and is used for controlling on-off of the back-flushing pipe 41 to control whether compressed air is introduced into the regulating cylinder 42 via the back-flushing pipe 41. Wherein the control valve 44, the first regulating valve 45 and the second regulating valve 46 are all ball valves 47.

In the onshore test process, the control valve 44 and the first regulating valve 45 are opened, the second regulating valve 46 is closed, and compressed air is introduced into the regulating cylinder 42, so that the air tightness of the regulating cylinder 42 can be tested. In the process of sinking the water intake head 101 underwater, the second regulating valve 46 is opened, the control valve 44 and the first regulating valve 45 are closed, so that water enters the regulating cylinder 42, after the water in the regulating cylinder 42 reaches a proper height, the second regulating valve 46 is closed, and the control valve 44 and the first regulating valve 45 are opened, so that air backflushing is performed through the backflushing pipe 41, the regulating cylinder 42 and the connecting pipe 43 when needed.

In addition, it is convenient to control whether or not compressed air is introduced into the adjustment cylinder 42 via the backwash pipe 41 by controlling the first control valve 45, and it is also possible to control whether or not compressed air is introduced into the adjustment cylinder 42 via the backwash pipe 41 by controlling the on-off of the portion of the backwash pipe 41 on shore and the on-off of the compressed air pump, since the latter is performed on shore.

Based on the provided regulating device 4, the gas backflushing of the water intake pipe 2 can be realized, and the water intake device 101 can be maintained. Specifically, when the water intake device 101 is in normal operation, maintenance is not required, but after the water intake system 100 is operated for a period of time, the rated pressure compressed air can be pressed into the regulating cylinder 42 through the back flushing pipe 41, the compressed air entering the regulating cylinder 42 is utilized to press the water in the regulating cylinder 42 into the water intake pipe 2 through the connecting pipe 43 and the control valve 44, firstly, the liquid level in the regulating cylinder 42 is reduced, when the liquid level in the regulating cylinder 42 is reduced to the height of the second control valve 46, then the compressed air in the regulating cylinder 42 enters into the water intake pipe 2 in a large amount through the connecting pipe 43, and due to light air, bubbles move upwards and gradually increase in the upward movement process, and finally the air is blown out from the water filtering holes 28 of the water filtering pipe 21, so that the purposes of cleaning the water filtering pipe 21 and preventing the blockage of the water filtering pipe 21 are achieved, and the water intake can be kept smooth, and the required water amount can be taken reliably. Meanwhile, bubbles generated in the corresponding back flushing process can float out of the water surface and can also be used as a mark for determining the horizontal position of the water taking point, so that the relative position of the water taking point in the water source 200 can be known at a glance through the position of the bubbles floating out of the water surface.

And, based on the regulation and control device 4 and the pumping system 102, the gas-liquid mixing recoil function can be realized. Specifically, in this embodiment, when the backflushing is required, compressed air may be introduced into the regulating cylinder 42 via the backflushing pipe 41, and a large amount of liquid may be poured into the sleeve 71, so that the compressed air and the poured large amount of liquid flow into the water intake pipe 2, and large-scale gas-liquid mixing backflushing may be performed. Because the sleeve 71 is communicated with the water intake pipe 2 through the water intake pipe 6 and the tee 52, the water intake pipe 6 is obliquely arranged relative to the water intake pipe 2 (for example, an included angle between axes of the water intake pipe 6 and the water intake pipe is 45 degrees), so that liquid poured from the sleeve 71 can obliquely enter the water intake pipe 2 and further flow upwards, and a back flushing function is realized. Also, since the sleeve 71 can be provided with a large diameter, a large amount of liquid can be poured from the sleeve 71, achieving a good backwash effect.

In addition, based on the regulating and controlling device 4, the buoyancy can be regulated, so that the water taking device 101 can be taken out conveniently. Specifically, if the underwater portion of the water intake device 101 needs to be pulled out of the water surface after years of use, compressed air may be compressed into the adjustment cylinder 42, and since the adjustment cylinder 42 is like a submarine, the compressed air may be compressed into the adjustment cylinder 42 to increase the buoyancy, thereby increasing the buoyancy of the adjustment cylinder 42 and reducing the pulling force required to pull the water intake device 101 upward.

The adjusting cylinder 42 can determine a maximum buoyancy value at design time, and in use, the buoyancy value is adjusted by controlling the pressure of the compressed air. When the pull-up is maintained, the water in the regulating cylinder 42 is discharged, and the upward pulling force can be reduced. Thus, a smaller vessel is used later for pull-up maintenance. If the diver submerges under the water, the water intake device 101 can be automatically floated by taking out part of the weight 3 and adjusting the displacement and buoyancy.

The float 1 is connected to the upper side of the water intake pipe 2 for applying an upward force to the water intake pipe 2 so as to maintain the water intake pipe 2 at a preset depth under water together with the counterweight 3. As shown in fig. 1 and 2, in this embodiment, the float 1 is a cylindrical float vessel filled with gas inside, which is located at a height exceeding 5m below the liquid level 201 (specifically, the low liquid level L2), and is connected above the water filter pipe 21 with its axis extending vertically. In this way, the float 1 is subjected to an upward buoyancy force and exerts an upward pulling force on the water intake pipe 2.

A weight 3 is connected to the lower side of the water intake pipe 2 for applying a downward force to the water intake pipe 2 so as to maintain the water intake pipe 2 at a preset depth under water together with the float 1. As shown in fig. 1 and 2, in this embodiment, the counterweight 3 is connected to the underside of the adjustment cylinder 42 by means of a spreader 33 and is supported above the water bottom 202 by a bracket 31. The lifting appliance 33 comprises a lifting ring 34 and a chain 35. The eye 34 is connected to the lower end of the adjustment cylinder 42. The chain 35 extends vertically downward through the eye 34. The counterweight 3 is attached to the lower end of the chain 35. The brackets 31 are inserted into the water bottom 202 and supported at four corners of the counterweight 3, preventing the counterweight 3 from sinking into the sludge of the water bottom 202. In this way, the weight 3 can exert a downward pulling force on the water intake pipe 2 and the adjustment cylinder 42, so that the water intake pipe 2 and the adjustment cylinder 42 can be kept upright and at a preset depth together with the float 1.

When configured, the buoyancy of the float 1 may be made greater than the sum of the dead weight of the float 1, the weight of the water intake pipe 2, the weight of the tee 52, and the weight of the adjustment cylinder 42, and the sum of the buoyancy of the float 1 and the buoyancy of the adjustment cylinder 42 may be slightly less than or equal to the sum of the weights of the float 1, the water intake pipe 2, the tee 52, the adjustment cylinder 42, and the counterweight 3. In this way, the cable chain 35 of the lifting appliance 33 is straightened and tensioned, the whole water taking device 101 is equivalent to an underwater tumbler, the floater 1 and the counterweight 3 can position the water taking pipe 2 between the floater 1 and the counterweight 3 at the X position and the Y position corresponding to one end, far away from the pump 72, of the water diversion pipe 6 and at the Z position with a certain height from the water bottom 202, so that the three-dimensional position of the water taking port 23 is fixed, the water taking device is not influenced by the lifting of the liquid level, and the taking of long-distance middle-layer water is realized.

In addition, as shown in fig. 1 and 2, in this embodiment, a float 51 is further connected above the float 1, and a pulling piece 32 is further connected to the counterweight 3. Wherein the float 51 floats on the liquid surface 201 and serves as a navigation mark to prompt the ship to improve navigation safety. The pulling member 32 is a stainless steel wire rope, one end of which is tied to the counterweight 3, and the other end of which extends to the shore, and is pulled when the water intake device 101 is to be taken out, so that the water intake device 101 is pulled out of the water surface by pulling the pulling member 32.

Based on the foregoing structural arrangement, the water intake system 100 of this embodiment has the following advantages:

(1) The water taking distance and the water taking depth are basically unlimited, and the long-distance middle-layer water can be conveniently taken. The distance between the water intake position of the water intake system 100 and the bank is not limited basically, and can reach about 2000m, and the water intake distance is significantly increased compared with a conventional pontoon type or truss type water intake method. Moreover, the water intake 23 can be kept at a preset depth without being affected by the elevation of the liquid level, and the taking of the middle-layer water at the preset depth is realized, so that the middle-layer water at a long distance can be conveniently taken even if the liquid level fluctuates by more than 15m or more.

(2) The water intake system 100 of this embodiment has a main body below the liquid level, does not substantially affect the navigation of the ship, is less affected by wind and water waves, and has higher reliability.

(3) The structure is simple, the installation is convenient, the engineering construction period is short, the construction cost is low, the aerial installation is not needed, the safety is high, and most parts can be assembled on the shore.

(4) The risk of the fish and the shrimp in the water being stranded is low, and the ecological friendliness is strong.

(5) The back flushing can be carried out, the maintenance period is greatly prolonged, and the maintenance cost is reduced.

(6) Even if the float 51 is not provided, the water taking position can be conveniently determined by floating the compressed air bubbles.

Of course, the water intake system 100 is not limited to the configuration shown in fig. 1-6. For example, referring to fig. 7, in alternative embodiments, the connection tube 43 of the regulating device 4 may be disposed inside the regulating cylinder 42 instead of outside the regulating cylinder 42. Specifically, as shown in fig. 7, as an example in which the connection pipe 43 is provided inside the adjustment cylinder 42, the connection pipe 43 includes two vertical portions 432 and a lateral portion 431 connected between the two vertical portions 432, lower ends of the two vertical portions 432 extend into the adjustment cylinder 42, communicate with the adjustment cylinder 42, and upper ends of the two vertical portions 432 extend upward above the adjustment cylinder 42, and communicate with the water intake pipe 2 through the lateral portion 431. More specifically, as shown in fig. 7, the connection pipe 43 is configured to include two vertical portions 432 and one horizontal portion 431, the horizontal portion 431 is arc-shaped and is connected between the two vertical portions 432 extending vertically, so that the connection pipe 43 is U-shaped, and the horizontal portion 431 of the connection pipe 43 is located above the adjustment cylinder 42, specifically above the blind plate 53 and in the tee 52, or in the water intake pipe 2, and the two vertical portions 432 of the connection pipe 43 pass through the blind plate 53 downward and extend into the adjustment cylinder 42 to communicate with the adjustment cylinder 42, and a through hole 433 is provided in the horizontal portion 431 of the connection pipe 43 to communicate the horizontal portion 431 with the water intake pipe 2, so that the two vertical portions 432 communicate with the water intake pipe 2 through the horizontal portion 431. In this way, the control device 4 can also realize the functions of air backwashing and buoyancy adjustment, and in this case, the control valve 44 is not required to be arranged on the connecting pipe 43, so that the structure is simpler. Wherein, the connecting pipe 43 is provided in a U shape instead of a single straight pipe, and the transverse portion 431 of the connecting pipe 42 is positioned in the tee 52 instead of the water intake pipe 2, the connecting pipe 43 is less likely to bend, and the reliability is higher.

The foregoing description of the exemplary embodiments of the present application is not intended to limit the invention to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, alternatives, and alternatives falling within the spirit and scope of the invention.

Claims

1. A water intake system (100), comprising:

the water taking device (101) comprises a floater (1), a water taking pipe (2) and a counterweight (3), wherein the floater (1) and the counterweight (3) are connected to the upper end and the lower end of the water taking pipe (2), so that the water taking pipe (2) is kept at a preset depth below a liquid level (201), and the water taking pipe (2) is provided with a water taking hole (23) and a water outlet, so that water enters the water taking pipe (2) through the water taking hole (23) and flows out from the water outlet.

2. The water intake system (100) of claim 1, wherein the water intake (23) is located above the water outlet such that water flows from top to bottom after entering the water intake tube (2).

3. The water intake system (100) according to claim 1, wherein the water intake pipe (2) comprises a water filter pipe (21), and wherein a water filter hole (28) on a side wall of the water filter pipe (21) serves as the water intake (23).

4. A water intake system (100) according to claim 3, wherein the water filter tube (21) is a wedge wire filter tube (25).

5. The water intake system (100) of claim 1, wherein the float (1) is configured to at least one of:

the floater (1) is filled with gas;

the floater (1) is positioned below the liquid level (201);

the floater (1) is columnar;

the axis of the float (1) extends vertically.

6. The water intake system (100) of claim 5, wherein the float (1) is below the liquid level (201), and the water intake device (101) further comprises a float (51), the float (51) being connected above the float (1), and at least part of the float (51) being above the liquid level (201); and/or the floater (1) is positioned below the liquid level (201), and the distance between the floater (1) and the liquid level (201) is greater than or equal to 5m.

7. The water intake system (100) of claim 6, wherein the float (1) is located below the liquid level (201), the distance between the float (1) and the liquid level (201) being greater than or equal to 7m.

8. The water intake system (100) of claim 1, wherein the counterweight (3) is configured to be at least one of:

the counterweight (3) comprises a housing and a filler, the filler being housed within the housing;

the counterweight (3) is supported by a bracket (31) so that a space is reserved between the counterweight (3) and the water bottom (202);

The counterweight (3) is rectangular.

9. The water intake system (100) according to claim 1, wherein the water intake device (101) comprises a spreader (33), the counterweight (3) being connected to the underside of the water intake pipe (2) by the spreader (33), the spreader (33) not passing through the water intake pipe (2) and/or the float (1); and/or the water taking system (100) comprises a pulling piece (32), one end of the pulling piece (32) is connected with the water taking device (101), and the other end of the pulling piece is positioned on the shore for pulling.

10. The water intake system (100) of claim 1, wherein a distance between the water intake (23) and the water bottom (202) is greater than 10m.

11. The water intake system (100) of claim 10, wherein a distance between the water intake (23) and the water bottom (202) is 10-40 m.

12. The water intake system (100) according to any one of claims 1-11, wherein the water intake device (101) further comprises a regulating device (4), the regulating device (4) is communicated with the water intake pipe (2) to introduce a backflushing medium into the water intake pipe (2) to backflush the water intake pipe (2); and/or the regulating device (4) regulates the buoyancy of the water taking device (101) in water.

13. The water intake system (100) of claim 12, wherein the regulating device (4) includes a backflushing tube (41), the backflushing tube (41) communicating the water intake tube (2) with a medium source to flow the backflushing medium from the medium source to the water intake tube (2); and/or the regulating and controlling device (4) comprises a regulating cylinder (42), the regulating cylinder (42) is connected with the water intake pipe (2), and the pressure in the regulating cylinder (42) can be regulated so as to regulate the buoyancy of the water intake device (101) in water.

14. The water intake system (100) of claim 13, wherein the regulating device (4) comprises the backflushing tube (41) and the regulating cylinder (42), the backflushing tube (41) being in communication with the water intake tube (2) through the regulating cylinder (42).

15. The water intake system (100) of claim 14, wherein the regulating cylinder (42) is connected to a lower end of the water intake pipe (2), the counterweight (3) is connected to a lower end of the regulating cylinder (42), and the water intake device (101) further includes a connecting pipe (43), the regulating cylinder (42) being in communication with the water intake pipe (2) through the connecting pipe (43).

16. The water intake system (100) of claim 15, wherein the connecting tube (43) is disposed outside the regulating cylinder (42), or wherein the connecting tube (43) is disposed inside the regulating cylinder (42) and extends upward out of the regulating cylinder (42) to communicate with the water intake tube (2).

17. The water intake system (100) of claim 16, wherein the connecting pipe (43) is arranged outside the regulating cylinder (42), a control valve (44) is arranged on the connecting pipe (43), and the control valve (44) controls the on-off of the connecting pipe (43); or, connecting pipe (43) set up in adjust section of thick bamboo (42) is inside to include two perpendicular portion (432) and connect in horizontal portion (431) between two perpendicular portion (432), the lower extreme of two perpendicular portion (432) stretch into in adjusting section of thick bamboo (42) with adjust section of thick bamboo (42) intercommunication, the upper end of two perpendicular portion (432) upwards stretch to the top of adjusting section of thick bamboo (42), and through horizontal portion (431) with water intake pipe (2) intercommunication.

18. The water intake system (100) of claim 12, wherein the backflushing medium comprises a gas and/or a liquid.

19. The water intake system (100) of any one of claims 1-11, wherein the water intake system (100) further comprises a pumping system (102), the pumping system (102) comprises a penstock (6) and a pump (72), the penstock (6) communicates a water outlet of the water intake pipe (2) with an inlet (73) of the pump (72), and an outlet (74) of the pump (72) is connected with a water usage device (300) to pump water entering the water intake pipe (2) to the water usage device (300), the pump (72) being mounted to a bank (203).

20. The water intake system (100) of claim 19, wherein the pumping system (102) is configured to at least one of:

the water diversion pipe (6) is a steel wire mesh skeleton polyethylene composite pipe (61);

the pump (72) is a deep well submersible pump (75);

the water conduit (6) and/or the pump (72) are/is arranged below the liquid surface (201).

21. The water intake system (100) of claim 19, wherein the pumping system (102) further comprises a sleeve (71), the sleeve (71) being mounted to the bank (203), the pump (72) being disposed in the sleeve (71) such that the pump (72) is mounted to the bank (203), the inlet (73) of the pump (72) being in communication with the water conduit (6) through the sleeve (71) such that water flowing into the water conduit (6) from the water intake (23) flows into the pump (72) via the sleeve (71).

22. The water intake system (100) of claim 21, wherein the pumping system (102) is configured to at least one of:

the angle between the sleeve (71) and the horizontal plane is greater than or equal to 45 DEG and less than 90 DEG;

the pumping system (102) further comprises a first limiting device (8), wherein the first limiting device (8) is arranged in the sleeve (71) and limits the pump (72);

The pumping system (102) further comprises a second limiting device (9), wherein the second limiting device (9) is arranged at the position, connected with the sleeve (71), of the water conduit (6), and limits and reinforces the water conduit (6).

23. The water intake system (100) of claim 22, wherein the first spacing device (8) comprises a plastic spacer (81), the plastic spacer (81) being padded under the pump (72); and/or the second limiting device (9) comprises at least one of a traction piece (91) and a positioning piece (92), wherein two ends of the traction piece (91) are respectively connected with the water diversion pipe (6) and the sleeve (71), and the positioning piece (92) is used for fixing the water diversion pipe (6) on the water bottom (202) or the embankment (203).

24. The water intake system (100) of claim 23, wherein the first spacing device (8) comprises at least two plastic pads (81), the at least two plastic pads (81) being spaced apart along the circumference of the pump (72); and/or the second limiting device (9) comprises at least two traction pieces (91), and the at least two traction pieces (91) are connected to different positions of the water conduit (6).