Water taking, isolating and cleaning device for seawater desalination

Abstract

The invention relates to the field of seawater desalination water intake cleaning, in particular to a seawater desalination water intake isolation cleaning device which is mounted at the front end of a water intake pipe at a water intake of a seawater desalination system, the seawater desalination system is provided with a strong brine outlet, and a discharge pipe is arranged at the strong brine outlet. The device comprises an isolation screen installed at the end of the water taking pipe, a cleaning system used for cleaning the isolation screen and a driving assembly driving the isolation screen to reach the cleaning system. The cleaning system comprises a cleaning barrel, a water inlet pipeline connected with the cleaning barrel and the discharge pipe and a water outlet pipeline connected with the cleaning barrel and the discharge pipe, a cleaning opening for the isolation screen to enter the cleaning barrel is formed in the cleaning barrel, and a shielding assembly for sealing the cleaning opening is arranged on the cleaning barrel. According to the invention, impurities cleaned from the isolation screen can be automatically discharged to a place far away from the water intake of the seawater desalination system, and the cleaned impurities are prevented from blocking the screen again, so that the water intake efficiency of the seawater desalination system is improved, and the labor intensity of operation and maintenance personnel is reduced.

Description

Technical Field

[0001] The present application relates to the field of seawater desalination water intake cleaning, and in particular to a seawater desalination water intake isolation cleaning device. Background Art

[0002] As global freshwater resources become increasingly scarce, seawater desalination, as a key water resource increment technology, has irreplaceable significance in solving the global freshwater shortage problem. Reverse osmosis membrane desalination technology is an advanced method that uses pressure difference to drive desalination. It has significant advantages such as small footprint, short construction period, simple operation, high degree of automation, low investment cost, and relatively low energy consumption. However, various impurities contained in natural seawater can cause fouling and performance degradation of reverse osmosis membranes, affecting their long-term effective operation. Therefore, when reverse osmosis membrane desalination technology is used to treat seawater, impurities in the seawater are first filtered out through desalination pretreatment.

[0003] Traditional desalination pretreatment methods include coagulation and sedimentation, flotation, and multi-media filtration, but these methods are difficult to continuously meet the high standards of influent water quality required by reverse osmosis membranes, which may lead to reduced water production and reduced operational stability of the reverse osmosis system. In contrast, ultrafiltration devices are widely used in pretreatment of desalination processes due to their simple operation process and high-quality and stable effluent water quality. However, the fouling problem of ultrafiltration membranes has become a key factor affecting the efficiency and operating costs of desalination treatment.

[0004] Especially in summer, marine phytoplankton outbreaks will occur periodically in the sea areas where desalination plants draw water. Plankton such as Enteromorpha, Daphnia pulex, Sagitta robusta and jellyfish colloid that enter the desalination system will be broken into colloidal substances by pre-filtration devices such as self-cleaning filters, greatly aggravating the contamination level of the ultrafiltration membrane and having a serious impact on the operation of the subsequent reverse osmosis unit.

[0005] In order to ensure the stable operation of the desalination system, an isolation screen is usually installed at the water intake. The isolation screen can effectively filter and screen these phytoplankton, thereby ensuring the stable operation of the system. However, the isolation screen is easily clogged with impurities after a period of use, and it needs to be cleaned manually or with a special cleaning device. The cleaned impurities need to be manually handled to the water intake away from the desalination system to prevent these impurities from flowing back again and clogging the isolation screen. This not only greatly increases the workload and labor intensity of the staff, but may also affect the overall operating efficiency of the system. Summary of the invention

[0006] In order to automatically dispose of impurities cleaned from the isolation screen to a water intake far away from the seawater desalination system, reduce the probability of the cleaned impurities clogging the screen again, and reduce the labor intensity of the staff, the present application provides a seawater desalination water isolation and cleaning device.

[0007] The present application provides a desalination water isolation and cleaning device that adopts the following technical solution: A desalination water intake isolation and cleaning device is installed at the water intake of a desalination system. A water intake pipe is installed at the water intake of the desalination system. A concentrated brine outlet is provided on the desalination system. The concentrated brine outlet is installed with a discharge pipe for discharging concentrated brine to a place far away from the water intake. The device comprises an isolation screen installed at the end of the water intake pipe, a cleaning system for cleaning the isolation screen, and a driving component for driving the isolation screen to reach the cleaning system. The cleaning system comprises a cleaning barrel, an inlet pipe connected between the cleaning barrel and the discharge pipe, and an outlet pipe connected between the cleaning barrel and the discharge pipe. A cleaning port is provided on the cleaning barrel for the isolation screen to reach the cleaning barrel. A shielding component is provided on the cleaning barrel for closing the cleaning port.

[0008] By adopting the above technical solution, the water reaching the water intake pipe can be filtered through the isolation screen, and when the isolation screen is blocked, the isolation screen can be moved to the cleaning bucket through the driving component. At this time, the concentrated brine in the discharge pipe will reach the cleaning bucket along the water inlet pipe, thereby flushing the isolation screen in the cleaning bucket, and the impurities after flushing will reach the discharge pipe along the water outlet pipe with the concentrated brine, and be discharged to the open sea through the discharge pipe. The impurities cleaned from the isolation screen can be automatically processed to the water intake far away from the seawater desalination system, reducing the probability of the cleaned impurities clogging the screen again, realizing unattended operation and maintaining the continuity of water intake. When the cleaning bucket does not need to clean the isolation screen, the shielding component can block the cleaning port, reducing the concentrated brine in the cleaning bucket from being discharged into the sea too much and affecting the salt content of the water intake of the seawater desalination system.

[0009] Optionally, the isolation screen is in the shape of a cylinder with one end closed, the closed end of the isolation screen abuts against the water intake of the seawater desalination system, a plurality of the isolation screens are connected end to end, and a bracket for supporting the isolation screen is provided, the isolation screen is slidably connected to the bracket, and the driving assembly is used to drive one of the isolation screens away from the water intake pipe to move into the cleaning bucket and drive the cleaned isolation screen to move onto the bracket.

[0010] By adopting the above technical solution, the isolation screen is designed as a cylinder with one end closed, and the closed end is abutted against the water intake of the seawater desalination system, while the inside of the isolation screen can be used to collect impurities such as plankton, effectively blocking plankton and other impurities from entering the water intake system, while also collecting impurities at the water intake, reducing the probability of the isolation screen being blocked by the impurities again. Multiple sections of isolation screens connected end to end can work continuously, improving the stability and flexibility of the system.

[0011] Optionally, sliders with T-shaped cross-sections are fixedly connected to the opposite side walls of the isolation screen, and the bracket includes support plates located on opposite sides of the isolation screen, and the two support plates have opposite sides provided with sliding grooves for the sliders to be embedded and slide, and the end of the sliding groove close to the water intake pipe is provided with a sliding-in groove for the slider to slide into the sliding groove, and the end of the sliding groove away from the water intake pipe is provided with a sliding-out groove for the slider to slide out of the sliding groove.

[0012] By adopting the above technical solution, the isolation screen can be fixed in position on the support plate and can also be made to slide within a certain range.

[0013] Optionally, the driving assembly includes a suction cup for adsorbing the isolation screen, a first linear driving member for driving the slider to slide out of the slide-out groove via the suction cup, a second linear driving member for driving the suction cup to move into the cleaning bucket, and a third linear driving member for driving the suction cup to move to the water intake pipe. A suction plate for adsorbing the suction cup is fixedly connected to the side wall of each isolation screen, and a toggle assembly is provided on the bracket for driving the isolation screen close to the water intake pipe to move away from the water intake pipe.

[0014] By adopting the above technical solution, the suction cup can be firmly adsorbed on the isolation screen, and the first linear drive component drives the slider to slide out of the slide-out groove, thereby realizing the removal of the isolation screen. The second linear drive component moves the suction cup and the isolation screen adsorbed thereon into the cleaning bucket, completing the position adjustment before cleaning. After cleaning is completed, the third linear drive component moves the suction cup and the isolation screen adsorbed thereon back to the water intake of the seawater desalination system to ensure that the isolation screen is accurately returned to its position after cleaning. In addition, the function of the toggle member is to push the isolation screen close to the water intake of the seawater desalination system to move away from the water intake when the drive assembly is working, thereby ensuring that the cleaned isolation screen can be smoothly inserted between other isolation screens and the water intake pipe.

[0015] Optionally, the toggle assembly includes a fourth linear drive member fixedly connected to the bracket, a toggle rod hinged at the movable end of the fourth linear drive member, and a guide plate fixedly connected to one side of the fourth linear drive member, the guide plate being provided with a guide groove for driving the toggle rod to move, and one end of the toggle rod away from the fourth linear drive member is located in the guide groove.

[0016] By adopting the above technical solution, the fourth linear drive component can drive the toggle rod to move along the guide groove, thereby realizing the movement of the position of the isolation screen, so that the isolation screen can smoothly reach the end away from the water intake pipe, and realize the sequential filtering of multiple isolation screens.

[0017] Optionally, the guide groove includes a force groove consistent with the axis of the isolation screen and a return groove parallel to the force groove, a first connecting groove is connected between the end of the force groove away from the water intake pipe and the return groove; a second connecting groove is connected between the end of the force groove close to the water intake pipe and the return groove, when the fourth linear drive member drives the toggle rod to move in a direction away from the water intake pipe, the toggle rod slides in the force groove and reaches the return groove along the first connecting groove; when the fourth linear drive member drives the toggle rod to slide in a direction close to the water intake pipe, the toggle rod slides in the return groove and reaches the force groove along the second connecting groove.

[0018] By adopting the above technical solution, when the fourth linear drive member drives the toggle rod to move in a direction away from the water intake of the seawater desalination system, the toggle rod slides in the force application groove and smoothly transitions to the return groove through the first connecting groove, thereby achieving a smooth push on the isolation screen. On the contrary, when the fourth linear drive member drives the toggle rod to slide in a direction close to the water intake of the seawater desalination system, the toggle rod slides in the return groove and smoothly transitions to the force application groove through the second connecting groove, thereby ensuring the smooth return of the toggle rod. This design not only improves the efficiency of the entire drive system, but also reduces mechanical wear and extends the service life of the equipment.

[0019] Optionally, the cleaning barrel is cylindrical, and the shielding assembly includes a shielding barrel slidably connected to the cleaning barrel and a power part for driving the shielding barrel to slide. A avoidance groove is provided on one side of the shielding barrel for the end of the driving assembly connected to the isolation screen to be embedded, and a baffle for blocking the avoidance groove is slidably connected to the shielding barrel.

[0020] By adopting the above technical solution, the shielding cylinder in the shielding assembly is slidably connected in the cleaning bucket, which can close the cleaning port during the cleaning process, prevent impurities from splashing out or water from flowing back during the cleaning process, and ensure a clean cleaning environment. The avoidance groove on one side of the shielding cylinder can ensure the smooth return of the shielding cylinder to avoid interference with the driving assembly.

[0021] Optionally, the power component includes a rotating cylinder rotatably connected to the cleaning barrel and a rotating motor fixed to the outer wall of the cleaning barrel for driving the rotating cylinder to rotate; a power rod is fixed to the outer wall of the shielding cylinder; a sliding groove is provided through the cleaning barrel for the power rod to be embedded and slide; a reciprocating spiral groove is provided on the inner wall of the rotating cylinder, and one end of the power rod is located in the reciprocating spiral groove.

[0022] By adopting the above technical solution, the rotating motor drives the rotating drum to rotate, and the reciprocating spiral groove on the inner wall of the rotating drum cooperates with the power rod, so that the power rod slides back and forth along the sliding groove, thereby driving the shielding drum to slide back and forth, realizing automatic opening and closing of the shielding drum, and ensuring the continuity and stability of the cleaning process.

[0023] Optionally, a rotating ring is rotatably connected inside the shielding cylinder, a brush is fixedly connected to the rotating ring, and a clean space is formed between the brush and the inner wall of the shielding cylinder for the side wall of the isolation screen to be embedded.

[0024] By adopting the above technical solution, after the isolation screen enters the cleaning barrel, the side wall of the isolation screen can be effectively cleaned with a brush.

[0025] Optionally, a spiral plate is fixedly connected to the inner wall of the cleaning bucket, and the spiral plate is spirally coiled around the axis of the cleaning bucket. When water in the cleaning bucket reaches the spiral plate, the water in the cleaning bucket reaches the brush in a spiral shape to drive the rotating ring to rotate.

[0026] By adopting the above technical solution, the design of the spiral plate enables the water flow in the cleaning barrel to flow along a spiral path. On the basis of enhancing the impact force and fluidity of the water flow, the rotating water flow can also drive the brush to rotate, thereby cleaning the inner wall of the isolation screen.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: The present application connects the cleaning bucket with the concentrated brine discharge pipe of the seawater desalination system, so that the impurities on the isolation screen can be washed by the existing concentrated brine without the need to set up a separate power element, and the cleaned plankton and other impurities can be discharged to the open sea along the concentrated brine, so that the impurities cleaned from the isolation screen are automatically processed to the water intake far away from the seawater desalination system, reducing the probability of the cleaned impurities clogging the screen again, eliminating the need for manual processing of plankton and other impurities, and reducing the labor intensity of the staff; By setting up the isolation screen, cleaning system and drive components, the function of automatic cleaning of the isolation screen is realized, which reduces manual intervention, reduces the labor intensity of the staff, and ensures the water quality of the seawater desalination system; The setting of multiple isolation screens allows multiple isolation screens to perform filtering work in turn. On the basis of ensuring the filtering quality, it also guarantees the overall service life of the isolation screens, and also realizes the cleaning of the isolation screens without stopping the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of this application.

[0029] Figure 2 This is a schematic diagram designed to illustrate the positional relationship among the isolation screen, drive assembly, and cleaning system.

[0030] Figure 3 This is a structural diagram to reflect a set of isolation screen structures.

[0031] Figure 4 This is a structural diagram designed to reflect the structure of the toggle component.

[0032] Figure 5 This is a structural diagram designed to reflect the structure of the cleaning system.

[0033] Figure 6 It is a front view cutaway schematic diagram of the cleaning barrel of the present application.

[0034] Figure 7 yes Figure 6 A magnified schematic diagram of center A.

[0035] Explanation of the reference numerals: 1. water inlet; 11. water inlet pipe; 12. discharge pipe; 13. switch valve; 2. isolation screen; 21. slider; 22. toggle groove; 23. suction plate; 24. first net; 25. second net; 26. third net; 3. cleaning system; 31. cleaning barrel; 311. closing plate; 312. rotating ring; 313. brush; 314. cleaning space; 315. spiral plate; 316. abutment block; 32. water inlet pipe; 33. water outlet pipe; 34. control valve; 35. cleaning port; 36. one-way valve; 4. drive assembly; 41. suction cup; 42. first linear drive member; 43. second linear drive member; 44. third linear drive member; 45. mounting rod; 46. reinforcement Rod; 5, shielding assembly; 51, shielding cylinder; 511, avoidance groove; 512, baffle; 513, installation groove; 514, fixed spring; 52, power part; 521, rotating cylinder; 522, rotating motor; 523, power rod; 524, sliding groove; 525, reciprocating spiral groove; 526, gear; 527, outer gear ring; 6, bracket; 61, support plate; 611, sliding groove; 612, sliding into groove; 613, sliding out groove; 7, toggle assembly; 71, fourth linear drive member; 72, toggle rod; 721, first rod; 722, second rod; 73, guide plate; 74, guide groove; 741, force groove; 742, return groove; 743, first connecting groove; 744, second connecting groove. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-Figure 7 This application is described in further detail.

[0037] At present, the commonly used method for desalinating seawater is reverse osmosis membrane desalination technology, which uses pressure difference to drive desalination and has significant advantages such as small footprint, short construction period, simple operation, high degree of automation, low investment cost, and relatively low energy consumption. However, the recovery rate of seawater desalination process through reverse osmosis membrane is only about 40%-50%, which means that a large amount of concentrated brine will be generated and needs to be discharged to the sea. For this reason, the concentrated brine produced in the desalination process is usually transported from land to the ocean through special discharge pipes, and this process is accompanied by significant gravitational potential energy and kinetic energy. Making full use of this gravitational potential energy and kinetic energy can provide auxiliary energy for other processes and equipment, further improving the energy efficiency and sustainability of the overall system.

[0038] During the process of taking water through the seawater desalination system, the isolation screen installed at the water intake of the seawater desalination system is easily blocked by impurities such as plankton in the ocean. Therefore, the inventors of the present application have researched and developed a more efficient automatic cleaning device to prevent the fouling of the ultrafiltration membrane caused by marine plankton and its secretions in different seasons, ensure the continuous and stable operation of the seawater desalination reverse osmosis process, and make full use of the gravitational potential energy and kinetic energy generated during the discharge of concentrated brine, which can not only reduce the labor intensity of the staff, but also significantly improve the operating efficiency and stability of the system.

[0039] The present application embodiment discloses a seawater desalination water isolation and cleaning device. Figure 1 The desalination water intake isolation and cleaning device is installed at the water intake 1 of the seawater desalination system, and is used for filtering the water entering the water intake 1 of the seawater desalination system. A water intake pipe 11 is installed at the water intake 1 of the seawater desalination system; the seawater desalination system is also provided with a concentrated brine outlet. After the water taken from the water intake 1 is filtered by the seawater desalination system, impurities and salt in the water will be filtered out, so that the water with impurities filtered out is discharged from the raw water outlet, and the remaining water containing higher salt is discharged from the concentrated brine outlet. A discharge pipe 12 is installed at the concentrated brine outlet, and the discharge pipe 12 extends to the open sea, so that the discharged concentrated brine is discharged to the open sea through the discharge pipe 12.

[0040] Reference Figure 1 and Figure 2 The desalination water isolation and cleaning device comprises an isolation screen 2 installed at the water intake pipe 11, a cleaning system 3 for cleaning the isolation screen 2, and a driving assembly 4 for driving the isolation screen 2 to the cleaning system 3. The cleaning system 3 comprises a cleaning bucket 31, an inlet pipe 32 connected between the cleaning bucket 31 and the discharge pipe 12, and an outlet pipe 33 connected between the cleaning bucket 31 and the discharge pipe 12. The inlet pipe 32 and the outlet pipe 33 are respectively connected to the two ends of the cleaning bucket 31, and the inlet pipe 32 is located at one end of the cleaning bucket 31 close to the desalination system, and a control valve 34 for controlling the on-off of the inlet pipe 32 is installed on the inlet pipe 32. The control valve 34 can control the passage of the water inlet pipe 32, so that the concentrated brine in the discharge pipe 12 can reach the cleaning bucket 31 along the water inlet pipe 32 to wash the isolation screen 2 in the cleaning bucket 31, and the marine phytoplankton washed off the isolation screen 2 will reach the discharge pipe 12 with the concentrated brine from the water outlet pipe 33 and be discharged to the offshore area. There is no need to add additional power components. With the existing power for discharging concentrated brine, the isolation screen 2 can be washed, and the impurities cleaned off the isolation screen 2 can be automatically processed to the water intake 1 far away from the seawater desalination system, which reduces the probability of the cleaned impurities clogging the screen again, and also reduces the labor intensity of the staff to manually clean the impurities.

[0041] A cleaning port 35 for the isolation screen 2 to reach the cleaning barrel 31 is provided on the cleaning barrel 31 , and a shielding component 5 for closing the cleaning port 35 is provided on the cleaning barrel 31 .

[0042] Reference Figure 3 and Figure 4 The isolation screen 2 is cylindrical with one end closed. The closed end of the isolation screen 2 abuts against the end of the water intake pipe 11. There are multiple isolation screens 2 connected end to end. This application takes three isolation screens 2 as an example for explanation. A bracket 6 is also provided for supporting the isolation screen 2. The bracket 6 can be fixed on the water intake pipe 11 or fixed at other positions, as long as the relative positions of the bracket 6 and the water intake pipe 11 can be fixed. The isolation screen 2 is slidably connected to the bracket 6, so that the isolation screen 2 close to the water intake pipe 11 is fixed by the bracket 6 and abuts against the water intake 1 of the seawater desalination system, thereby filtering the water entering the water intake pipe 11. Under normal conditions, the water entering the water intake pipe 11 is filtered by three isolation screens 2 that are abutted against each other end to end to ensure the filtering effect. At this time, an isolation screen 2 located far away from the water intake pipe 11 blocks the entry of plankton. When an isolation screen 2 located far away from the water intake pipe 11 is seriously blocked, the driving component 4 can drive an isolation screen 2 far away from the water intake pipe 11 to move into the cleaning bucket 31, so that the isolation screen 2 can be cleaned by the power of the concentrated brine itself. The cleaned isolation screen 2 can be driven by the driving component 4 to be inserted between the remaining isolation screens 2 and the water intake pipe 11. At this time, the remaining isolation screens 2 are moved as a whole to a set position in the direction away from the water intake pipe 11. Therefore, a toggle component 7 is also provided on the bracket 6 for driving the isolation screen 2 near the water intake pipe 11 to move in the direction away from the water intake pipe 11.

[0043] The support 6 includes support plates 61 located at two opposite sides of the isolation screen 2 , and the two sides of the isolation screen 2 are respectively connected to the two support plates 61 so as to fix the position of the isolation screen 2 through the support plates 61 .

[0044] Specifically, sliders 21 with a T-shaped cross section are fixedly connected to the two opposite side walls of the isolation screen 2, and a slide groove 611 for the slider 21 to be inserted and slide is provided on the opposite side of the two support plates 61, and a slide-in groove 612 for the slider 21 to slide into the slide groove 611 is provided at one end of the slide groove 611 close to the water intake pipe 11, and a slide-out groove 613 for the slider 21 to slide out of the slide groove 611 is provided at one end of the slide groove 611 away from the water intake pipe 11. Under normal conditions, the slider 21 is located in the slide groove 611, and the isolation screen 2 abuts against the water intake pipe 11 under the impact force of the water in the water intake pipe 11. When the driving component 4 drives the cleaned isolation screen 2 to reach the remaining isolation screens 2 and the water intake pipe 11, the toggle component 7 will toggle the isolation screen 2 abutting against the water intake pipe 11 to move a set distance away from the water intake pipe 11. At this time, there will be a placement space between the isolation screen 2 and the water intake pipe 11 for the cleaned isolation screen 2 to be placed. Simply place the cleaned isolation screen 2 into the placement space, and slide the slider 21 on the isolation screen 2 from the slide slot 612 to the slide slot 611. At this time, the sliders 21 on the isolation screen 2 at both ends will abut against the two ends of the slide slot 611, so that the isolation screen 2 filters the water entering the water intake pipe 11.

[0045] Reference Figure 3 and Figure 4 The toggle assembly 7 includes a fourth linear drive member 71, a toggle rod 72 hinged at the movable end of the fourth linear drive member 71, and a guide plate 73 fixed to one side of the fourth linear drive member 71. The fourth linear drive member 71 can be a fourth linear motor, the toggle rod 72 is hinged on the slider 21 of the fourth linear motor, and a guide groove 74 for driving the toggle rod 72 to slide is provided on the side of the guide plate 73 facing the isolation screen 2, and the end of the toggle rod 72 away from the fourth linear motor is located in the guide groove 74.

[0046] The toggle rod 72 includes an L-shaped first rod 721 hinged on the fourth linear motor slider 21 and a second rod 722 vertically fixed to the end of the first rod 721 away from the fourth linear motor, one end of the second rod 722 is located in the guide groove 74, and the other end of the second rod 722 is embedded between the isolation screen 2 and the water intake pipe 11 to push the isolation screen 2 to slide. Therefore, a toggle groove 22 for the second rod 722 to be embedded is also provided at the closed end of the isolation screen 2.

[0047] The guide groove 74 includes a force-applying groove 741 that is consistent with the axis of the isolation screen 2 and a return groove 742 that is parallel to the force-applying groove 741. A first connecting groove 743 is connected between the end of the force-applying groove 741 away from the water intake pipe 11 and the return groove 742. The force-applying groove 741 and the first connecting groove 743 are in a circular arc transition. A second connecting groove 744 is connected between the end of the force-applying groove 741 close to the water intake pipe 11 and the return groove 742. The return groove 742 and the second connecting groove 744 are in a circular arc transition. When the fourth linear driving member 71 drives the first rod 721 to move in a direction away from the water intake pipe 11, the second rod 722 slides in the force-applying groove 741 and follows the first connecting groove 743 to the connection between the first connecting groove 743 and the return groove 742; when the fourth linear driving member 71 drives the first rod 721 to slide in a direction close to the water intake pipe 11, the second rod 722 slides in the return groove 742 and follows the second connecting groove 744 to the second connecting groove 744 and the force-applying groove 741. The height of the force-applying groove 741 is lower than the height of the highest point of the isolation screen 2, and the height of the return groove 742 is higher than the height of the highest point of the isolation screen 2, so that when the second rod 722 slides in the force-applying groove 741, the second rod 722 is located in the toggle groove 22 and can drive the isolation screen 2 to move; when the second rod 722 slides in the first connecting groove 743, the second rod 722 will slide out of the toggle groove 22 to release the matching relationship with the isolation screen 2. When the second rod 722 moves in the return groove 742, since the return groove 742 is located on the upper side of the isolation screen 2, it will not interfere with the isolation screen 2; when the second rod 722 slides in the second connecting groove 744, the second rod 722 will gradually contact the isolation screen 2 abutting against the water intake pipe 11 and embed into the toggle groove 22. When the drive assembly 4 drives the cleaned isolation screen 2 to the top of the water intake pipe 11, the slider 21 of the fourth linear motor slides once to open the insertion space. After the cleaned isolation screen 2 is placed in the insertion space, the slider 21 of the fourth linear motor returns to wait for the next cycle. The fourth linear motor only needs to drive the slider 21 to reciprocate once.

[0048] Reference Figure 2 and Figure 4The driving assembly 4 includes a suction cup 41 for adsorbing the isolation screen 2, a first linear driving member 42 for driving the slider 21 to slide out of the slide-out groove 613 through the suction cup 41, a second linear driving member 43 for driving the suction cup 41 to move into the cleaning bucket 31, and a third linear driving member 44 for driving the suction cup 41 to move to the water intake pipe 11. A suction plate 23 for adsorbing the suction cup 41 is fixedly connected to the side wall of each isolation screen 2. Among them, the third linear driving member 44 can be a third linear motor, and the third linear motor is located on the side of the cleaning bucket 31 away from the bracket 6. The second linear driving member 43 can be a second hydraulic cylinder, and the second hydraulic cylinder can be directly installed on the slider 21 of the third linear motor to drive the second hydraulic cylinder to move through the third linear motor. The first linear driving member 42 can also be a first hydraulic cylinder, and the first hydraulic cylinder is vertically fixed to the piston rod of the second hydraulic cylinder, and the suction cup 41 is fixed to the piston rod of the first hydraulic rod. When in use, the suction cup 41 can be directly driven by the first hydraulic cylinder to abut against the suction plate 23 of the isolation screen 2 to achieve the adsorption and fixation of the isolation screen 2. Then, the piston rod of the first hydraulic cylinder is controlled to retract, and the isolation screen 2 can be removed from the bracket 6 through the suction cup 41, and the height of the isolation screen 2 is higher than the height of the cleaning bucket 31. Then, by controlling the piston rod of the second hydraulic cylinder to retract, the isolation screen 2 can be driven to move to the top of the cleaning bucket 31. At this time, the shielding component 5 is controlled to open the cleaning port 35, and the piston rod of the first hydraulic cylinder is controlled to extend, so that the isolation screen 2 can be driven from the cleaning port 35 to the cleaning bucket 31. At this time, the control valve 34 can be controlled to open, so that the concentrated brine of the discharge pipe 12 can reach the cleaning bucket 31 to rinse the isolation screen 2 in the cleaning bucket 31, and the cleaning direction of the concentrated brine is opposite to the filtering direction of the isolation screen 2, so that the impurities such as plankton on the isolation screen 2 can be smoothly washed away. The washed plankton will also flow along with the concentrated brine from the outlet pipe 33 into the discharge pipe 12 and be transported to the open sea through the discharge pipe 12 .

[0049] It is understandable that an air pump / water pump and an air release pipe connected to the suction cup 41 are also provided, and an air release valve is installed on the air release pipe. When the suction cup 41 abuts against the suction plate 23, the air pump / water pump can be used to extract the gas / water between the suction cup 41 and the suction plate 23, so that the suction cup 41 can be firmly adsorbed on the suction plate 23. When the isolation screen 2 is cleaned and placed in the filtering position, the air release pipe is opened by operating the air release valve, so that the external water flow can reach between the suction cup 41 and the suction plate 23, and the adsorption relationship between the suction cup 41 and the suction plate 23 is released.

[0050] Reference Figure 5A one-way valve 36 is also installed on the outlet pipe 33 to control the concentrated brine to only reach the discharge pipe 12 from the cleaning bucket 31 along the outlet pipe 33, and prevent the water in the discharge pipe 12 from reaching the cleaning bucket 31 from the outlet pipe 33, thereby ensuring the cleaning of the isolation screen 2.

[0051] The cleaned isolation screen 2 will be pulled out from the cleaning port 35 by the first hydraulic cylinder, and then the third linear motor will drive the isolation screen 2 to move toward the water intake pipe 11, so that the cleaned isolation screen 2 can reach the placement space, and then the isolation screen 2 will be driven by the second hydraulic cylinder to move to the top of the placement space. At this time, the remaining isolation screens 2 will be moved away from the seawater desalination system by the toggle component 7 to vacate the placement space. At this time, the piston rod of the first hydraulic cylinder extends to place the cleaned isolation screen 2 into the placement space, and the toggle component 7 returns to achieve the cleaning of the isolation screen 2.

[0052] It is understandable that a mounting rod 45 may be fixedly connected to the slider 21 of the third linear motor, the second hydraulic cylinder may be fixedly connected to the mounting rod 45, and a reinforcing rod 46 may be fixedly connected between the second hydraulic cylinder and the mounting rod 45 to increase the supporting strength of the second hydraulic cylinder.

[0053] Reference Figure 5 and Figure 6 The cleaning barrel 31 is cylindrical, and the shielding assembly 5 includes a shielding barrel 51 slidably connected to the cleaning barrel 31 and a power piece 52 for driving the shielding barrel 51 to slide. A avoidance groove 511 for the first hydraulic cylinder piston rod to be embedded in one side of the shielding barrel 51 is provided, so that when the first hydraulic cylinder piston rod drives the isolation screen 2 to extend into the cleaning barrel 31, the shielding barrel 51 can close the cleaning port 35 again, reducing the connection between the cleaning barrel 31 and the outside through the cleaning port 35, and reducing the pressure in the cleaning barrel 31 so that the flushing force of the isolation screen 2 is insufficient. When the shielding barrel 51 closes the cleaning port 35, the shielding barrel 51 can close the cleaning port 35 again. At this time, the first hydraulic cylinder piston rod used to connect with the isolation screen 2 will be embedded in the avoidance groove 511, reducing the interference between the first hydraulic cylinder piston rod and the shielding barrel 51. At the same time, in order to ensure that the shielding tube 51 can smoothly block the cleaning port 35 when the isolation screen 2 is taken out from the cleaning barrel 31 , a baffle 512 for blocking the avoidance groove 511 is slidably connected in the shielding tube 51 .

[0054] Reference Figure 6 and Figure 7Specifically, a mounting groove 513 is provided at the bottom of the avoidance groove 511, a baffle 512 is slidably connected in the mounting groove 513, and a fixing spring 514 is fixedly connected between the bottom of the mounting groove 513 and the baffle 512. Under normal conditions, the baffle 512 extends out of the mounting groove 513 and is located in the avoidance groove 511 under the elastic force of the fixing spring 514, so as to block the avoidance groove 511, so that the shielding cylinder 51 is in a complete cylindrical shape and closes the cleaning port 35. When the isolation screen 2 is located in the cleaning barrel 31, when the shielding cylinder 51 closes the cleaning port 35, the end of the baffle 512 away from the fixing spring 514 will abut against the piston rod of the first hydraulic cylinder, and the baffle 512 is pushed by the piston rod of the first hydraulic cylinder so that the fixing spring 514 is squeezed and retracted into the mounting groove 513.

[0055] It is understandable that the concentrated brine in the cleaning barrel 31 may flow out from the avoidance groove 511 on the side of the first hydraulic cylinder piston rod away from the baffle 512, because the amount of the outflow is small and can be ignored. Of course, it is also possible to set that when the first linear drive member 42 drives the isolation screen 2 to be located in the cleaning barrel 31, the third linear drive member 44 is started at this time, so that the third linear drive member drives the isolation screen 2 to move along the axis of the cleaning barrel 31, so that the side of the first hydraulic cylinder piston rod away from the baffle 512 abuts against the cleaning port 35, and the probability of the concentrated brine in the cleaning barrel 31 flowing out can be reduced. Of course, a sealing ring can also be fixed on the outer wall of the first hydraulic cylinder piston rod to make the seal at the avoidance groove 511 more tight.

[0056] Among them, in order to ensure that the shielding tube 51 blocks the cleaning port 35, a closing plate 311 is fixedly connected to the inner wall of the cleaning barrel 31. The closing plate 311 is annular and is located on one side of the cleaning port 35. When the shielding tube 51 blocks the cleaning port 35, one end of the shielding tube 51 with the avoidance groove 511 will abut against the closing plate 311, making the closure of the cleaning port 35 more tight.

[0057] Reference Figure 6 and Figure 7The power member 52 includes a rotating cylinder 521 rotatably connected to the washing barrel 31 and a rotating motor 522 fixed to the outer wall of the washing barrel 31 for driving the rotating cylinder 521 to rotate, wherein a power rod 523 is fixed to the outer wall of the shielding cylinder 51, and a sliding groove 524 for the power rod 523 to be embedded and slide is provided through the inner and outer walls of the washing barrel 31, and the length direction of the sliding groove 524 is consistent with the axial direction of the washing barrel 31, and a reciprocating spiral groove 525 is provided on the inner wall of the rotating cylinder 521, and one end of the power rod 523 is located in the reciprocating spiral groove 525. When the rotating motor 522 is started, the rotating motor 522 will drive the rotating cylinder 521 to rotate. Due to the cooperation between the power rod 523 and the sliding groove 524, the rotation of the shielding cylinder 51 is restricted, so that the power rod 523 slides in the reciprocating spiral groove 525, and the sliding groove 524 can guide the power rod 523, so that the shielding cylinder 51 slides along the length direction of the sliding groove 524. The arrangement of the reciprocating spiral groove 525 enables the rotary motor 522 to drive the shielding tube 51 to slide reciprocatingly, so that the shielding tube 51 can reset and close the cleaning port 35 again after opening the cleaning port 35 .

[0058] A gear 526 is fixedly connected to the output shaft of the rotating motor, and an outer gear ring 527 meshing with the gear 526 is fixedly connected to the outer wall of the rotating cylinder 521. The rotating motor drives the rotating cylinder 521 to rotate through the meshing of the gear 526 and the outer gear ring 527.

[0059] Reference Figure 6 and Figure 7 A rotating ring 312 is also rotatably connected in the shielding cylinder 51, and a brush 313 is fixed on the rotating ring 312. A plurality of brushes 313 are fixedly connected at intervals around the axis of the rotating ring 312, and a cleaning space 314 is formed between the outer walls of the plurality of brushes 313 and the inner wall of the shielding cylinder 51 for the side wall of the isolation screen 2 to be embedded. The length direction of the brush 313 is tilted with the axis of the cleaning barrel 31, so that when the isolation screen 2 is placed in the cleaning barrel 31, the shielding cylinder 51 is driven by the power member 52 to close the cleaning port, and the isolation screen 2 is also located in the cleaning space 314 between the shielding cylinder 51 and the brush 313. When concentrated brine enters the cleaning barrel 31, the concentrated brine will impact the side wall of the brush 313 to drive the brush 313 to rotate around the axis of the cleaning barrel 31, so that the brush 313 cleans the inner wall of the isolation screen 2.

[0060] At the same time, in order to increase the force of the brush 313 during rotation, a spiral plate 315 is fixedly connected to the inner wall of the cleaning barrel 31, so that after the concentrated brine reaches the cleaning barrel 31, it will flow in a rotating direction along the spiral direction of the spiral plate 315; wherein, the spiral direction of the spiral plate 315 is opposite to the inclination direction of the brush 313, so that the rotating flowing water flow can smoothly impact the side wall of the brush 313 to drive the brush 313 to rotate smoothly, thereby realizing the brush 313 being driven to rotate around the axis of the cleaning barrel 31 by the force of the water flow.

[0061] Among them, in order to ensure the firmness of the fixation between the suction cup 41 and the isolation screen 2 when the isolation screen 2 is flushed by concentrated brine, an abutment block 316 is fixed to the inner wall of the shielding cylinder 51, and two abutment blocks 316 are provided, which are respectively located on the opposite sides of the shielding cylinder 51. The abutment block 316 is located on the side of the rotating ring 312 facing the closing plate 311, and the cleaning space 314 is located on the side of the abutment block 316 facing the closing plate 311, so that when the shielding cylinder 51 abuts on the closing plate 311, the isolation screen 2 also abuts on the abutment block 316 to increase the force of the isolation screen 2 to resist the impact of concentrated brine.

[0062] It can be understood that in order to facilitate timely cleaning of the isolation screen 2, a pressure sensor for detecting the degree of blockage of the isolation screen 2 is also provided, so that the degree of blockage at the isolation screen 2 can be detected by the pressure sensor, and when the blockage of the isolation screen 2 reaches a set value, the drive component 4 is controlled to move and clean the isolation screen 2.

[0063] Among them, when the insertion space is opened by the toggle component 7 so that the drive component 4 can put the cleaned isolation screen 2 into the insertion space, if the water intake pipe 11 is in the water intake state at this time, impurities such as suspended organisms in the sea will enter the water intake pipe 11 from the insertion space, affecting the water intake quality. Therefore, two water intake pipes 11 can be provided, and one end of the two water intake pipes 11 is connected and connected to the water intake 1 of the seawater desalination system. Two sets of isolation screens 2 are provided, and the two sets of isolation screens 2 are respectively arranged at one end of the two water intake pipes 11 away from the seawater desalination system, and the drive components 4 are arranged on the opposite sides of the two sets of isolation screens 2, and the cleaning system 3 is located between the two sets of isolation screens 2, so that the cleaning work of the two sets of isolation screens 2 can be realized by the same cleaning system 3. At the same time, a switch valve 13 is installed on each water intake pipe 11. When the insertion space at one of the water intake pipes 11 needs to be opened to allow the cleaned isolation screen 2 to be inserted, the water intake pipe 11 at the isolation screen 2 can be closed by the switch valve 13 to draw water from the seawater desalination system through another water intake pipe 11, so that water can be taken without stopping the system and the water quality can be guaranteed.

[0064] It is understandable that in order to reduce the risk of seawater directly reaching the water intake pipe 11 from the side wall of the isolation screen 2 near the water intake pipe 11, the outer wall of the isolation screen 2 is blocked. An isolation cylinder may be fixed between the two support plates 61, and the isolation screen 2 is slidably connected in the isolation cylinder, so that the water in the sea can only reach the water intake pipe 11 after passing through multiple isolation screens 2 in sequence from the inside of the isolation screen 2 far away from the water intake pipe 11. And in order to ensure that the cleaned isolation screen 2 can be smoothly placed in the space, the isolation cylinder is a telescopic cylinder, including a first cylinder fixed to the support plate 61, a second cylinder slidably connected to one end of the first cylinder, and a third cylinder slidably connected to the other end of the first cylinder, and the first cylinder and the second cylinder, as well as the first cylinder and the third cylinder are connected by hydraulic cylinders. When it is necessary to take out and clean an isolation screen 2 away from the water intake pipe 11, the hydraulic cylinder can drive the third cylinder to slide toward the first cylinder, so that the isolation screen 2 away from the water intake pipe 11 can be taken out smoothly. After the isolation screen 2 is taken out, the hydraulic cylinder piston rod extends to drive the third cylinder to reset and close the position of the isolation screen 2 again; and when the cleaned isolation screen 2 needs to be placed in the placement space, the hydraulic cylinder piston rod contracts to drive the second cylinder to slide toward the first cylinder, open the placement space, and facilitate the placement of the cleaned isolation screen 2. After the placement is completed, the hydraulic cylinder piston rod extends to drive the second cylinder to approach the direction of the water intake pipe 11, so that the second cylinder abuts against the end wall of the water intake pipe 11 to achieve the blocking of the placement space. Of course, in order to reduce the seawater from the side wall of the isolation screen 2 near the water intake pipe 11 directly reaching the water intake pipe 11, the outer wall of the isolation screen 2 is blocked. The side wall of the isolation screen 2 may also be arranged to be cylindrical without mesh holes, so that only the closed end of the isolation screen 2 is mesh-shaped. In this case, there is no need to arrange the suction plate 23 so that the suction cup 41 can smoothly adsorb the isolation screen 2.

[0065] The implementation principle of a desalination water intake isolation and cleaning device in an embodiment of the present application is as follows: Under normal circumstances, water can be taken from the desalination system through one water intake pipe 11, or through two water intake pipes 11. When one of the isolation screens 2 is blocked, the isolation screen 2 is moved to the top of the corresponding cleaning barrel 31 through the corresponding drive assembly 4, and the cleaning port 35 is driven to open through the power combination, and then the isolation screen 2 to be cleaned is placed in the cleaning barrel 31, and then the shielding cylinder 51 is driven by the power member 52 to block the cleaning port 35. By opening the control valve 34, the concentrated brine in the discharge pipe 12 can reach the cleaning barrel 31 along the water inlet pipe 32. The concentrated brine in the cleaning barrel 31 will generate a rotating force due to the setting of the spiral plate 315, and drive the brush 313 to rotate to clean the side wall of the isolation screen 2. After cleaning is completed, the operating control valve 34 is closed, and the power member 52 drives the shielding cylinder 51 to move, so that the cleaning port 35 can be opened, and the driving component 4 can drive the cleaned isolation screen 2 to slide out of the cleaning port 35. Then the power member 52 controls the shielding cylinder 51 to close the cleaning port 35, and the corresponding switch valve 13 on the water intake pipe 11 controls the water intake pipe 11 to close, and then the toggle rod 72 pushes the isolation screen 2 abutting on the water intake pipe 11 to move away from the water intake pipe 11 to open the placement space, and the drive component 4 drives the cleaned isolation screen 2 to be placed in the placement space, and the cleaning and placement of the isolation screen 2 can be completed. Finally, the switch valve 13 at the water intake pipe 11 is controlled to open. The impurities such as plankton that clog the isolation screen 2 follow the concentrated brine to the discharge pipe 12 and are discharged to the offshore area, and there is no need to manually handle the cleaned impurities. At the same time, the existing force of discharging concentrated brine is used to clean the impurities of the isolation screen 2, so that there is no need to add additional power to clean the isolation screen 2, and the operation is more labor-saving. On the basis of reducing the probability of the cleaned impurities clogging the screen again, it can also achieve unattended operation and maintain the continuity of water inlet.

[0066] Of course, after cleaning the isolation screen 2, the cleaned isolation screen 2 can be placed between the remaining isolation screen 2 and the water intake pipe 11. The cleaned isolation screen 2 can also be put back to its original position, that is, the isolation screen 2 is placed at the end away from the water intake pipe 11. Figure 3For example, there are three isolation screens 2, and from the end close to the water intake pipe 11 to the end away from the water intake pipe 11, the three isolation screens 2 are called the first screen 24, the second screen 25 and the third screen 26 in sequence. When the third screen 26 is blocked, the third screen 26 is directly placed in the cleaning bucket 31 for cleaning, and the impurities are filtered through the second screen 25 during the cleaning process. When the third screen 26 is cleaned, the third screen 26 is put back to its original position, and the impurities are filtered through the third screen 26 again. The cycle is repeated until the second screen 25 is blocked to a set value, and the second screen 25 is moved to the cleaning bucket 31 for cleaning by the driving component 4. At this time, the third screen 26 will abut against the first screen 24 under the impact of water, and then the cleaned second screen 25 can be placed in the position of the third screen 26. It can be understood that before cleaning the second screen 25, the third screen 26 can be cleaned first, and then the second screen 25 can be cleaned, so that the third screen 26 abutting against the first screen 24 under the impact of the water flow is in a clean state. By alternating the second net 25 and the third net 26, the water intake pipe 11 can be filtered without stopping the machine, without setting two water intake pipes 11 and two sets of isolation screens 2, making the equipment simpler and lowering the cost.

[0067] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A desalination water intake isolation and cleaning device, installed at a desalination system water intake (1), a water intake pipe (11) is installed at the desalination system water intake (1), a concentrated brine outlet is provided on the desalination system, a discharge pipe (12) for discharging concentrated brine away from the water intake (1) is installed at the concentrated brine outlet, and the characteristics are: The invention comprises an isolation screen (2) installed at the end of a water intake pipe (11), a cleaning system (3) for cleaning the isolation screen (2), and a driving assembly (4) for driving the isolation screen (2) to reach the cleaning system (3); the cleaning system (3) comprises a cleaning bucket (31), a water inlet pipe (32) connected between the cleaning bucket (31) and the discharge pipe (12), and a water outlet pipe (33) connected between the cleaning bucket (31) and the discharge pipe (12); the cleaning bucket (31) is provided with a cleaning port (35) for the isolation screen (2) to reach the cleaning bucket (31); and the cleaning bucket (31) is provided with a shielding assembly (5) for closing the cleaning port (35).

2. The seawater desalination water isolation and cleaning device according to claim 1, characterized in that: The isolation screen (2) is cylindrical with one end closed, the closed end of the isolation screen (2) abuts against the water intake (1) of the seawater desalination system, a plurality of the isolation screens (2) are arranged end to end, and a bracket (6) for supporting the isolation screen (2) is also provided, the isolation screen (2) is slidably connected to the bracket (6), and the driving component (4) is used to drive one of the isolation screens (2) away from the water intake pipe (11) to move into the cleaning bucket (31) and drive the cleaned isolation screen (2) to move onto the bracket (6).

3. The seawater desalination water intake isolation and cleaning device according to claim 2, characterized in that: Slide blocks (21) with a T-shaped cross section are fixedly connected to the two opposite side walls of the isolation screen (2); the bracket (6) comprises support plates (61) located on the two opposite sides of the isolation screen (2); a slide groove (611) for the slide block (21) to be inserted and slide is provided on the opposite sides of the two support plates (61); an end of the slide groove (611) close to the water intake pipe (11) is provided with a slide-in groove (612) for the slide block (21) to slide into the slide groove (611); and an end of the slide groove (611) away from the water intake pipe (11) is provided with a slide-out groove (613) for the slide block (21) to slide out of the slide groove (611).

4. The seawater desalination water isolation and cleaning device according to claim 3 is characterized in that: The driving assembly (4) comprises a suction cup (41) for adsorbing the isolation screen (2), a first linear driving member (42) for driving the slider (21) to slide out of the slide-out groove (613) through the suction cup (41), a second linear driving member (43) for driving the suction cup (41) to move into the cleaning bucket (31), and a third linear driving member (44) for driving the suction cup (41) to move to the water intake pipe (11). A suction plate (23) for adsorbing the suction cup (41) is fixedly connected to the side wall of each isolation screen (2). The bracket (6) is provided with a toggle assembly (7) for driving the isolation screen (2) close to the water intake pipe (11) to move in a direction away from the water intake pipe (11).

5. The seawater desalination water isolation and cleaning device according to claim 4 is characterized in that: The toggle assembly (7) comprises a fourth linear drive member (71) fixedly connected to the bracket (6), a toggle rod (72) hingedly connected to the movable end of the fourth linear drive member (71), and a guide plate (73) fixedly connected to one side of the fourth linear drive member (71), wherein the guide plate (73) is provided with a guide groove (74) for driving the toggle rod (72) to move, and an end of the toggle rod (72) away from the fourth linear drive member (71) is located in the guide groove (74).

6. The seawater desalination water isolation and cleaning device according to claim 5, characterized in that: The guide groove (74) comprises a force-applying groove (741) which is consistent with the axis of the isolation screen (2) and a return groove (742) which is parallel to the force-applying groove (741); a first connecting groove (743) is connected between the end of the force-applying groove (741) away from the water intake pipe (11) and the return groove (742); a second connecting groove (744) is connected between the end of the force-applying groove (741) close to the water intake pipe (11) and the return groove (742); when the fourth linear drive member (71) When the toggle rod (72) is driven to move in a direction away from the water intake pipe (11), the toggle rod (72) slides in the force-applying groove (741) and reaches the return groove (742) along the first connecting groove (743); when the fourth linear driving member (71) drives the toggle rod (72) to slide in a direction close to the water intake pipe (11), the toggle rod (72) slides in the return groove (742) and reaches the force-applying groove (741) along the second connecting groove (744).

7. The seawater desalination water isolation and cleaning device according to claim 1, characterized in that: The cleaning barrel (31) is cylindrical, and the shielding assembly (5) comprises a shielding barrel (51) slidably connected to the cleaning barrel (31) and a power member (52) for driving the shielding barrel (51) to slide. A side of the shielding barrel (51) is provided with an escape groove (511) for embedding one end of the driving assembly (4) connected to the isolation screen (2), and a baffle (512) for blocking the escape groove (511) is slidably connected to the inside of the shielding barrel (51).

8. The seawater desalination water intake isolation and cleaning device according to claim 7, characterized in that: The power member (52) comprises a rotating cylinder (521) rotatably connected to the cleaning barrel (31) and a rotating motor (522) fixedly connected to the outer wall of the cleaning barrel (31) for driving the rotating cylinder (521) to rotate; a power rod (523) is fixedly connected to the outer wall of the shielding cylinder (51); a sliding groove (524) is provided through the cleaning barrel (31) for the power rod (523) to be embedded and slide; a reciprocating spiral groove (525) is provided on the inner wall of the rotating cylinder (521); one end of the power rod (523) is located in the reciprocating spiral groove (525).

9. The seawater desalination water isolation and cleaning device according to claim 7, characterized in that: A rotating ring (312) is rotatably connected inside the shielding cylinder (51), a brush (313) is fixedly connected to the rotating ring (312), and a cleaning space (314) is formed between the brush (313) and the inner wall of the shielding cylinder (51) for the side wall of the isolation screen (2) to be embedded.

10. The seawater desalination water intake isolation and cleaning device according to claim 9, characterized in that: A spiral plate (315) is fixedly connected to the inner wall of the cleaning bucket (31), and the spiral plate (315) is spirally wound around the axis of the cleaning bucket (31). When water in the cleaning bucket (31) reaches the spiral plate (315), the water in the cleaning bucket (31) reaches the brush (313) in a spiral shape, driving the rotating ring (312) to rotate.

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