A large-scale seawater desalination ultrafiltration pretreatment device
By combining the filter screen with connecting rods, ball bearings, and springs, the problems of filter media clogging and complex fixing structures are solved, ensuring the cleanliness and sealing performance of the filter screen and improving the maintenance efficiency and filtration effect of the seawater desalination pretreatment device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUDI SALT IND
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-31
AI Technical Summary
In existing large-scale seawater desalination ultrafiltration pretreatment devices, the filter media is easily clogged by solid particles, and the complex fixed structure makes cleaning and replacement inconvenient, affecting the filtration effect and equipment maintenance efficiency.
The system employs a combination structure of filter screen, connecting rod, ball bearings, and spring. The position of the connecting rod and ball bearings is controlled by the movement of the sealing cover to prevent clogging, and the spring force ensures the cleanliness of the filter screen. At the same time, the disassembly process of the sealing cover and filter screen is simplified, and the design of the nut and fixing plate enables quick assembly and disassembly of the connecting pipe and water supply pipe.
It effectively prevents solid particles from clogging the filter screen, simplifies filter screen replacement and sealing performance, improves equipment maintenance efficiency, reduces labor intensity, and ensures seawater filtration effect and stable equipment operation.
Smart Images
Figure CN224573319U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seawater desalination technology, and in particular to a large-scale seawater desalination ultrafiltration pretreatment device. Background Technology
[0002] Against the backdrop of increasingly severe global water scarcity, seawater desalination technology has become an important way to alleviate the contradiction between freshwater supply and demand. Large-scale seawater desalination ultrafiltration pretreatment units, as a key component of the seawater desalination system, primarily function to pre-treat seawater, removing solid particles, suspended solids, and other impurities. This provides qualified feed water for subsequent advanced treatment processes such as ultrafiltration membrane filtration, thereby ensuring the stable operation and processing efficiency of the entire seawater desalination system. The performance of this unit directly affects the cost of seawater desalination, water quality, and equipment lifespan. Therefore, developing efficient, stable, and easy-to-maintain large-scale seawater desalination ultrafiltration pretreatment units is of significant practical importance. In existing technologies, large-scale seawater desalination ultrafiltration pretreatment devices typically employ filtration components to filter seawater. These generally include a filter container containing filter media. Seawater enters the filter container through a delivery pipe, and the filter media intercepts and adsorbs impurities, leaving solid particles and other impurities on its surface. The filtered seawater then flows out of the container's outlet. To install and secure the filter media, bolts, clips, or other connection methods are used to attach the filter media to the filter container. Simultaneously, to ensure a tight seal during filtration, gaskets or other sealing components are placed at the connections. Tightening the bolts compresses these sealing components, thus achieving a seal. However, in existing large-scale seawater desalination ultrafiltration pretreatment devices, the filter media is easily clogged by solid particles in seawater during long-term use, affecting the filtration effect. Furthermore, due to the complex connection method of the filter media's fixing structure, cleaning or replacing the filter media is cumbersome, time-consuming, and difficult to thoroughly clean or replace, resulting in an inability to effectively guarantee the filtration effect, thus affecting the efficiency and quality of subsequent seawater desalination treatment. Utility Model Content
[0003] To overcome the above shortcomings, this utility model provides a large-scale seawater desalination ultrafiltration pretreatment device, which aims to improve the problem that the filter medium in the existing large-scale seawater desalination ultrafiltration pretreatment device is easily clogged by solid particles in seawater during long-term use, thus affecting the filtration effect.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a large-scale seawater desalination ultrafiltration pretreatment device, comprising a filter chamber, a sealing cover at the top of the filter chamber, a connecting pipe fixedly connected inside the filter chamber, a threaded pipe threadedly connected inside the sealing cover, a filter screen fixedly connected to the lower surface of the threaded pipe, the filter screen fitting snugly against the connecting pipe, a water outlet pipe fixedly connected to the bottom of the filter chamber, a handle fixedly connected to the top of the sealing cover, a telescopic rod fixedly connected inside the filter chamber, a spring sleeved on the outer wall of the telescopic rod, a push plate fixedly connected to one end of the spring, a connecting rod fixedly connected to the lower surface of the sealing cover, a ball bearing inside the connecting rod, and a sealing assembly at the top of the filter chamber; The sealing assembly includes a sealing plate and a telescopic rod 2. The inner wall of the sealing plate is fixedly connected to one end of the telescopic rod 2, the outer wall of the sealing plate is slidably connected to the top of the filter chamber, and the other end of the telescopic rod 2 is fixedly connected to the top of the filter chamber.
[0005] Furthermore, one end of the spring is fixedly connected to the inner wall of the filter chamber, the outer wall of the push plate is slidably connected to the inside of the filter chamber, and the connecting rod and the ball are both slidably connected to the inside of the filter chamber.
[0006] Furthermore, a second spring is sleeved on the outer wall of the telescopic rod, the sealing plate is in contact with the sealing cover, a water supply pipe is provided at one end of the connecting pipe, a sealing ring is fixedly connected to one side of the outer wall of the connecting pipe, a first fixing plate is fixedly connected to one side of the outer wall of the connecting pipe, and a second fixing plate is rotatably connected to one end of the first fixing plate.
[0007] Furthermore, a threaded rod is rotatably connected to the inner wall of the fixing plate, and a nut is threadedly connected to the outer wall of the threaded rod.
[0008] Furthermore, the nut is disposed on the upper surface of the second fixing plate.
[0009] Furthermore, the fixing plate two is attached to the water supply pipe, and the sealing ring is attached to the water supply pipe.
[0010] Furthermore, one end of the second spring is fixedly connected to the top of the filter chamber, and the other end of the second spring is fixedly connected to the inner wall of the sealing plate.
[0011] This utility model has the following beneficial effects: 1. In this utility model, seawater is first filtered through a filter screen. Then, the position of the connecting rod and ball bearings is controlled by the movement of the sealing cover. The pushing force of spring one prevents solid particles from clogging the filter screen, ensuring its cleanliness. Simultaneously, it facilitates the disassembly and replacement of the sealing cover and filter screen, further guaranteeing filter screen cleanliness and maintaining filtration efficiency. When installing a new filter screen, spring one secures the connecting rod in a pre-set slot, ensuring structural stability. Furthermore, during the installation of the sealing cover, the elasticity of spring two ensures a tight seal between the sealing plate and the sealing cover, guaranteeing the sealing performance of the filter chamber and providing reliable conditions for seawater filtration.
[0012] 2. In this utility model, the locking and releasing of the first fixing plate and the second fixing plate can be easily achieved by rotating the nut, and the disassembly and assembly of the connecting pipe and the water supply pipe can be quickly completed by pulling the second fixing plate. This not only makes the pipeline maintenance operation simpler and improves work efficiency, but also reduces the physical exertion of the staff during the maintenance process, making the daily maintenance and component replacement of the equipment more efficient and quick, which is conducive to ensuring the stable operation of the entire seawater desalination pretreatment process. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the main structure of a large-scale seawater desalination ultrafiltration pretreatment device proposed in this utility model; Figure 2 This is a schematic diagram of the internal structure of the filter chamber of a large-scale seawater desalination ultrafiltration pretreatment device proposed in this utility model. Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the top part of the filter chamber of a large-scale seawater desalination ultrafiltration pretreatment device proposed in this utility model. Figure 5 This is a schematic diagram of the water supply pipe at one end of a large-scale seawater desalination ultrafiltration pretreatment device proposed in this utility model.
[0014] Legend: 1. Filter chamber; 2. Connecting pipe; 3. Filter screen; 4. Threaded pipe; 5. Sealing cap; 6. Push plate; 7. Telescopic rod one; 8. Spring one; 9. Connecting rod; 10. Ball bearing; 11. Water outlet pipe; 12. Sealing plate; 13. Telescopic rod two; 14. Spring two; 15. Sealing ring; 16. Fixing plate one; 17. Fixing plate two; 18. Threaded rod; 19. Nut; 20. Water supply pipe; 21. Handle. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] Reference Figure 1 - Figure 5 An embodiment of this utility model provides a large-scale seawater desalination ultrafiltration pretreatment device, including a filter chamber 1, a sealing cover 5 on the top of the filter chamber 1, a connecting pipe 2 fixedly connected inside the filter chamber 1, a threaded pipe 4 threadedly connected inside the sealing cover 5, a filter screen 3 fixedly connected to the lower surface of the threaded pipe 4, the filter screen 3 being in contact with the connecting pipe 2, a water outlet pipe 11 fixedly connected to the bottom of the filter chamber 1, a handle 21 fixedly connected to the top of the sealing cover 5, a telescopic rod 7 fixedly connected inside the filter chamber 1, a spring 8 sleeved on the outer wall of the telescopic rod 7, a push plate 6 fixedly connected to one end of the spring 8, a connecting rod 9 fixedly connected to the lower surface of the sealing cover 5, a ball bearing 10 inside the connecting rod 9, and a sealing assembly on the top of the filter chamber 1. The sealing assembly includes a sealing plate 12 and a telescopic rod 13. The inner wall of the sealing plate 12 is fixedly connected to one end of the telescopic rod 13, the outer wall of the sealing plate 12 is slidably connected to the top of the filter chamber 1, the other end of the telescopic rod 13 is fixedly connected to the top of the filter chamber 1, one end of the spring 8 is fixedly connected to the inner wall of the filter chamber 1, the outer wall of the push plate 6 is slidably connected to the inside of the filter chamber 1, and the connecting rod 9 and the ball bearing 10 are both slidably connected to the inside of the filter chamber 1.
[0017] Specifically, seawater is first transported to the filter screen 3 via the water supply pipe 20 and connecting pipe 2. The filter screen 3 filters solid particles from the seawater, and the clean seawater flows through the filter screen 3 into the outlet pipe 11 at the bottom of the filter chamber 1. After pressing the sealing cover 5, turn it to the right. The connecting rod 9 and the ball bearing 10 slide inside the filter chamber 1, and their positions are controlled by the movement of the sealing cover 5. Tighten the sealing cover 5 until it cannot be turned, then release it. The pushing force of the spring 8 pushes the connecting rod 9 and the ball bearing 10 out of the filter chamber 1, preventing solid particles from clogging the filter screen 3 and ensuring its cleanliness. Afterwards, the sealing cover 5 and the filter screen 3 below can be pulled out of the filter chamber 1 to replace the filter screen 3 to ensure the filtration effect. When installing a new filter screen 3, insert the connecting rod 9 into the preset groove at the top of the filter chamber 1, turn it to the left, and the spring 8 will push the connecting rod 9 into the preset slot inside the filter chamber 1 to fix it, ensuring stability. When installing the sealing cover 5, the sealing plate 12 first slides in the filter chamber 1, applying pressure to the spring 14. The spring 14 generates elastic force under pressure, pushing the sealing plate 12 to fit tightly with the sealing cover 5, ensuring sealing performance.
[0018] Reference Figure 1 - Figure 5 A spring 14 is fitted on the outer wall of the telescopic rod 13. The sealing plate 12 is in contact with the sealing cover 5. A water supply pipe 20 is provided at one end of the connecting pipe 2. A sealing ring 15 is fixedly connected to one side of the outer wall of the connecting pipe 2. A fixing plate 16 is fixedly connected to one side of the outer wall of the connecting pipe 2. A fixing plate 17 is rotatably connected to one end of the fixing plate 16. A threaded rod 18 is rotatably connected to the inner wall of the fixing plate 16. A nut 19 is threadedly connected to the outer wall of the threaded rod 18. The nut 19 is located on the upper surface of the fixing plate 17. The fixing plate 17 is in contact with the water supply pipe 20. The sealing ring 15 is in contact with the water supply pipe 20. One end of the spring 14 is fixedly connected to the top of the filter chamber 1. The other end of the spring 14 is fixedly connected to the inner wall of the sealing plate 12.
[0019] Specifically, rotating the nut 19 allows for easy access to the threaded rod 18, enabling workers to easily lock and release the fixing plate 16 and the fixing plate 27. The fixing plate 27 is a key component of the connecting pipe 2 and the water supply pipe 20. When these two pipes need to be disassembled, pulling the fixing plate 27 allows for quick disassembly, improving work efficiency and reducing labor intensity. By rotating the nut 19, the fixing plate 27 can be locked and released, and by pulling the fixing plate 27, the connecting pipe 2 and the water supply pipe 20 can be disassembled and assembled, significantly improving the maintenance efficiency of the mechanical equipment.
[0020] Working Principle: When a large-scale seawater desalination ultrafiltration pretreatment device is needed, seawater is first transported to the interior of the filter screen 3 through the water supply pipe 20 and connecting pipe 2 to ensure effective filtration. The filter screen 3 filters solid particles in the seawater, maintaining its cleanliness. The clean seawater then flows through the filter screen 3 into the outlet pipe 11 at the bottom of the filter chamber 1 for further transport. Next, by pressing the sealing cover 5 and then turning it to the right, the connecting rod 9 and the ball bearing 10 slide inside the filter chamber 1. The position of the connecting rod 9 and the ball bearing 10 is controlled by the movement of the sealing cover 5. During the tightening of the sealing cover 5, when it can no longer be tightened, the sealing cover 5 can be loosened. At this time, the pushing force of the spring 8 pushes the connecting rod 9 and the ball bearing 10 out of the filter chamber 1, preventing solid particles from clogging the filter screen 3 during the filtration process. After ensuring the filter screen 3 is clean, the sealing cover 5 and the filter screen 3 below can be pulled out of the filter chamber 1 to replace the filter screen 3. Maintaining the cleanliness of the filter screen 3 ensures the filtration effect of the seawater. When installing a new filter screen 3, simply insert the connecting rod 9 into the pre-set groove at the top of the filter chamber 1, and then rotate it to the left. Spring 8 will then push the connecting rod 9 into the pre-set slot inside the filter chamber 1 for fixation, ensuring the stability of the connecting rod 9. During the installation of the sealing cover 5, the sealing plate 12 will slide inside the filter chamber 1, thus applying pressure to the spring 14. When the spring 14 is under pressure, it will generate a certain elastic force, which can push the sealing plate 12 and the sealing cover 5 to fit tightly together, ensuring a tight seal. Furthermore, by rotating the nut 19, it is easy to place and remove the nut 19 on the outer wall of the threaded rod 18. Workers can easily lock and release the fixing plate 16 and the fixing plate 27. The fixing plate 27 is a key component of the connecting pipe 2 and the water supply pipe 20. When it is necessary to disassemble and assemble these two pipes, simply pull the fixing plate 27 to quickly disassemble the connecting pipe 2 and the water supply pipe 20. This not only improves work efficiency but also reduces the labor intensity of workers. The method of locking and releasing the fixing plate 27 by rotating the nut 19 and disassembling and assembling the connecting pipe 2 and the water supply pipe 20 by pulling the fixing plate 27 greatly improves the maintenance efficiency of mechanical equipment.
[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A large-scale seawater desalination ultrafiltration pretreatment device comprising a filter bin (1), characterized in that: The filter chamber (1) is provided with a sealing cover (5) at the top. A connecting pipe (2) is fixedly connected inside the filter chamber (1). A threaded pipe (4) is threadedly connected inside the sealing cover (5). A filter screen (3) is fixedly connected to the lower surface of the threaded pipe (4). The filter screen (3) is in contact with the connecting pipe (2). A water outlet pipe (11) is fixedly connected to the bottom of the filter chamber (1). A handle (21) is fixedly connected to the top of the sealing cover (5). A telescopic rod (7) is fixedly connected inside the filter chamber (1). A spring (8) is sleeved on the outer wall of the telescopic rod (7). A push plate (6) is fixedly connected to one end of the spring (8). A connecting rod (9) is fixedly connected to the lower surface of the sealing cover (5). A ball bearing (10) is provided inside the connecting rod (9). A sealing assembly is provided at the top of the filter chamber (1). The sealing assembly includes a sealing plate (12) and a telescopic rod (13). The inner wall of the sealing plate (12) is fixedly connected to one end of the telescopic rod (13), the outer wall of the sealing plate (12) is slidably connected to the top of the filter chamber (1), and the other end of the telescopic rod (13) is fixedly connected to the top of the filter chamber (1).
2. A large scale sea water desalination ultrafiltration pretreatment device according to claim 1, characterized in that: One end of the spring (8) is fixedly connected to the inner wall of the filter chamber (1), the outer wall of the push plate (6) is slidably connected to the inside of the filter chamber (1), and the connecting rod (9) and the ball (10) are both slidably connected to the inside of the filter chamber (1).
3. A large-scale seawater desalination ultrafiltration pretreatment device according to claim 2, characterized in that: The outer wall of the telescopic rod 2 (13) is fitted with spring 2 (14), the sealing plate (12) is in contact with the sealing cover (5), one end of the connecting pipe (2) is provided with a water supply pipe (20), a sealing ring (15) is fixedly connected to one side of the outer wall of the connecting pipe (2), a fixing plate 1 (16) is fixedly connected to one side of the outer wall of the connecting pipe (2), and a fixing plate 2 (17) is rotatably connected to one end of the fixing plate 1 (16).
4. A large scale sea water desalination ultrafiltration pretreatment device according to claim 3, characterized in that: The inner wall of the fixed plate (16) is rotatably connected to a threaded rod (18), and the outer wall of the threaded rod (18) is threadedly connected to a nut (19).
5. A large scale sea water desalination ultrafiltration pretreatment unit as claimed in claim 4, wherein: The nut (19) is disposed on the upper surface of the fixing plate 2 (17).
6. A large scale sea water desalination ultrafiltration pretreatment unit as claimed in claim 5, wherein: The fixing plate 2 (17) is attached to the water pipe (20), and the sealing ring (15) is attached to the water pipe (20).
7. A large-scale seawater desalination ultrafiltration pretreatment device according to claim 3, characterized in that: One end of the second spring (14) is fixedly connected to the top of the filter chamber (1), and the other end of the second spring (14) is fixedly connected to the inner wall of the sealing plate (12).