A reverse osmosis sea water desalination machine

Abstract

The utility model relates to sea water desalination technical field discloses a kind of reverse osmosis sea water desalination machines, including rack, the water purification pipe is arranged in the inside of rack, the reverse filter membrane is arranged in the inside of water purification pipe, the end cap is arranged in the inside of water purification pipe, the sealing assembly is arranged in the inside of end cap, the energy-saving assembly is arranged in the outside of rack, the sealing assembly includes sealing ring, the end cap inner wall is slidably connected with the block, the block outer wall one side is in contact in sealing ring inner wall, the block outer wall other side is fixedly connected with connecting rod, the connecting rod one end is fixedly connected with inclined block, the end cap inner wall is slidably connected with inclined push block, the inclined surface of inclined push block is slidably connected on the inclined surface of inclined block. In the utility model, by rotating handle drive inclined push block sliding, utilize inclined surface structure to drive connecting rod to make block radial compression sealing ring, while multidirectional linkage mechanism ensures that sealing pressure is evenly distributed, effectively prevent leakage under high pressure working condition, prolong the service life of reverse osmosis membrane.

Description

Technical Field

[0001] This utility model relates to the field of seawater desalination technology, and in particular to a reverse osmosis seawater desalination machine. Background Technology

[0002] Reverse osmosis seawater desalination technology is an important way to solve the shortage of freshwater resources. It achieves salt separation by driving seawater through a semi-permeable membrane under high pressure. The core of this technology is to use a precision filtration membrane module to complete seawater desalination under high pressure. Its system usually includes core components such as a pretreatment unit, a high-pressure pump, an energy recovery device, and membrane modules.

[0003] Existing equipment generally adopts flange bolt fastening or bolt locking end cover sealing structure. The membrane end cover is mechanically connected to the shell flange by circumferentially distributed bolts. The seal is achieved by compressing the rubber sealing ring to generate radial deformation, or by rotating the bolts to make the end cover flange fit into the shell groove, and the rubber ring expands under pressure to fill the gap. This type of structure relies on manual symmetrical tightening of bolts for locking. The sealing pressure is indirectly transmitted to the sealing ring through rigid components.

[0004] However, the above sealing method has significant drawbacks. During maintenance operations involving frequent replacement of filter membranes, operators need to use tools to adjust the bolts one by one or repeatedly rotate the clips. The disassembly and assembly process is cumbersome and time-consuming. More seriously, asynchronous pressure at multiple points can easily lead to uneven stress on the sealing ring. When the working pressure exceeds a certain level, the risk of leakage caused by local seal failure increases significantly, reducing the continuous operating efficiency of the equipment and the lifespan of the core membrane module. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a reverse osmosis seawater desalination machine, which aims to improve the problem that uneven force on the sealing ring is easily caused by bolt tightening when replacing the filter membrane.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a reverse osmosis seawater desalination machine, comprising a frame, a water purification pipe inside the frame, a reverse filtration membrane inside the water purification pipe, an end cap inside the water purification pipe, a sealing component inside the end cap, and an energy-saving component outside the frame; The sealing assembly includes a sealing ring fitted on the outer wall of the end cap. A stop block is slidably connected to the inner wall of the end cap. One side of the outer wall of the stop block abuts against the inner wall of the sealing ring. A connecting rod is fixedly connected to the other side of the outer wall of the stop block. An inclined block is fixedly connected to one end of the connecting rod. An inclined push block is slidably connected to the inner wall of the end cap. The inclined surface of the inclined push block is slidably connected to the inclined surface of the inclined block. One end of the inclined push block is located outside the end cap.

[0007] Furthermore, the energy-saving component includes a water turbine and a runner. The water turbine is installed outside the frame, and the runner is installed outside the frame. The output end of the water turbine is fixedly connected to the inside of the runner. One end of the outer wall of the purified water pipe is provided with a concentrated water outlet. The concentrated water outlet is connected to the water turbine inlet through a connecting pipe. The lower surface of the water turbine is provided with a water outlet, and the upper surface of the runner is provided with a seawater inlet.

[0008] Furthermore, a filter is installed inside the frame, with a filter inlet and a filter outlet on the outer wall of the filter, and the rotor outlet and the filter inlet are connected by a connecting pipe.

[0009] Furthermore, a water pump is installed inside the frame, and the filter outlet is connected to the water pump inlet via a connecting pipe. A concentrated water inlet is installed on the other side of the outer wall of the purified water pipe, and the concentrated water inlet is connected to the filter outlet via a connecting pipe.

[0010] Furthermore, a handle is rotatably connected to the inner wall of the end cap, and the handle abuts against one end of the inclined push block when it is retracted.

[0011] Furthermore, a locking block is slidably connected to the inner wall of the end cap, and a push button is fixedly connected to the outer wall of the locking block. The locking block is engaged with the handle. A second spring is provided inside the end cap. One end of the second spring is fixedly connected to one end of the locking block, and the other end of the second spring is fixedly connected to the inner wall of the end cap.

[0012] Furthermore, a spring is sleeved on the outer wall of the connecting rod, one end of the spring is fixedly connected to the outer wall of the inclined block, and the other end of the spring is fixedly connected to the inner wall of the end cap. A reverse filter membrane is installed inside the water purification pipe, a check ring is fixedly connected to the outer wall of the end cap, and a fresh water outlet pipe is fixedly connected to the inner wall of the end cap. One end of the fresh water outlet pipe is located inside the reverse filter membrane.

[0013] Furthermore, a control console is provided inside the frame, a fresh water outlet is provided at one end of the water purification pipe, the fresh water outlet is connected to the water inlet of the control console through a connecting pipe, and a controller water outlet pipe is provided on the lower surface of the control console.

[0014] This utility model has the following beneficial effects: In this invention, the sealing assembly drives the inclined push block to slide by rotating the handle. The inclined block is pushed to move laterally by the inclined surface structure, which drives the connecting rod to make the abutment block radially press the sealing ring. This design allows for easy operation to quickly seal or disassemble the end cap, improving maintenance efficiency. At the same time, the multi-directional linkage mechanism ensures that the sealing pressure is evenly distributed, effectively preventing leakage under high pressure conditions and extending the service life of the reverse osmosis membrane.

[0015] In this invention, the energy-saving component guides the high-pressure wastewater from the concentrate outlet into the turbine to drive the runner to rotate. The runner converts mechanical energy into kinetic energy to pressurize the incoming seawater. This process recovers the pressure energy of the concentrate directly discharged in the traditional system, enabling the pretreated seawater to obtain initial pressurization, reducing the energy load of the water pump, significantly reducing the overall power consumption of the system, and realizing the cascade utilization of energy. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a reverse osmosis seawater desalination machine proposed in this utility model; Figure 2 This is a schematic diagram of the control console structure of a reverse osmosis seawater desalination machine proposed in this utility model; Figure 3 This is a schematic diagram of the water purification pipe structure of a reverse osmosis seawater desalination machine proposed in this utility model; Figure 4 This is a schematic diagram of the end cap structure of a reverse osmosis seawater desalination machine proposed in this utility model; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram of the turbine structure of a reverse osmosis seawater desalination machine proposed in this utility model.

[0017] Legend: 1. Frame; 2. Clean water pipe; 3. Concentrate inlet; 4. Water pump; 5. Filter; 6. Concentrate outlet; 7. Fresh water outlet; 8. Control console; 9. Controller outlet pipe; 10. End cap; 11. Fresh water outlet pipe; 12. Sealing ring; 13. Check ring; 14. Abutment block; 15. Connecting rod; 16. Inclined block; 17. Spring 1; 18. Inclined push block; 19. Locking block; 20. Push button; 21. Spring 2; 22. Handle; 23. Water turbine; 24. Runner; 25. Seawater inlet; 26. Filter inlet; 27. Filter outlet; 28. Reverse filter membrane; 29. ​​Connecting pipe. Detailed Implementation

[0018] 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.

[0019] Reference Figure 1 - Figure 6This utility model provides an embodiment of a reverse osmosis seawater desalination machine, including a frame 1 supporting all components. A water purification pipe 2 is installed inside the frame 1 to house the reverse osmosis membrane and perform the seawater desalination process. A reverse filtration membrane 28, which is a semi-permeable membrane, is installed inside the water purification pipe 2, allowing water molecules to pass through while retaining salt and impurities under high pressure. An end cap 10 is installed inside the water purification pipe 2 to seal one end and install a sealing mechanism. A sealing component is installed inside the end cap 10 to ensure the water purification pipe 2 is sealed and leak-proof under high pressure. An energy-saving component is installed outside the frame 1 to recover energy and reduce system power consumption. The sealing component includes a sealing ring 12, which deforms under pressure to fill gaps. The sealing ring 12 is fitted onto the outer wall of the end cap 10. A stop block 14 is slidably connected to the inner wall of the end cap 10. One side of the outer wall of the abutment block 14 abuts against the inner wall of the sealing ring 12, directly applying pressure to the sealing ring 12 to cause it to expand and seal. A connecting rod 15 is fixedly connected to the other side of the outer wall of the abutment block 14. One end of the connecting rod 15 is fixedly connected to an inclined block 16. An inclined push block 18 is slidably connected to the inner wall of the end cover 10. The inclined surface of the inclined push block 18 is slidably connected to the inclined surface of the inclined block 16. The inclined surfaces interact to convert axial motion into radial motion. One end of the inclined push block 18 is located outside the end cover 10. The energy-saving components include a water turbine 23 and a runner 24. The water turbine 23 is located outside the frame 1, and the runner 24 is located outside the frame 1 to receive high-pressure concentrated water for drive. The output end of the water turbine 23 is fixedly connected inside the runner 24 to pressurize seawater using the power of the water turbine 23. A concentrated water outlet 6 is provided at one end of the outer wall of the purified water pipe 2. The concentrated water outlet 6 is connected to the water turbine 23 inlet via a connecting pipe 29, directing the energy of the high-pressure wastewater to the water turbine 23. The water turbine 23 has an outlet on its lower surface, and a seawater inlet 25 is located on the upper surface of the runner 24. A filter 5, a pretreatment unit, is installed inside the frame 1 to remove large particles. A filter inlet 26 and a filter outlet 27 are located on the outer wall of the filter 5. The runner 24 outlet and filter inlet 26 are connected via a connecting pipe 29. A water pump 4 is installed inside the frame 1, and the filter outlet 27 is connected to the water pump inlet via a connecting pipe 29. A concentrated water inlet 3 is located on the other side of the outer wall of the purified water pipe 2, and it is connected to the filter outlet 27 via a connecting pipe 29. A handle is rotatably connected to the inner wall of the end cap 10. Handle 22, when retracted, abuts against one end of the inclined push block 18, pressing the inclined push block 18 to drive the seal. A locking block 19 is slidably connected to the inner wall of the end cover 10, and a push button 20 is fixedly connected to the outer wall of the locking block 19. The locking block 19 engages with the handle 22 to lock the handle 22 and prevent accidental operation, while indirectly ensuring the expansion state of the sealing ring 12. A second spring 21 is provided inside the end cover 10 to provide the elastic force for the locking block 19 to lock the handle 22. One end of the second spring 21 is fixedly connected to one end of the locking block 19, and the other end of the second spring 21 is fixedly connected to the inner wall of the end cover 10. A first spring 17 is sleeved on the outer wall of the connecting rod 15 to provide the elastic force for the abutment block 14 and the inclined block 16 to return to their original positions. One end of the first spring 17 is fixedly connected to the outer wall of the inclined block 16, and the other end of the first spring 17 is fixedly connected to the inner wall of the end cover 10.The purified water pipe 2 is equipped with a reverse filtration membrane 28. A check ring 13 is fixedly connected to the outer wall of the end cap 10 to prevent backflow of concentrated water. A fresh water outlet pipe 11 is fixedly connected to the inner wall of the end cap 10 to collect the produced fresh water. One end of the fresh water outlet pipe 11 is located inside the reverse filtration membrane 28. A control console 8 is installed inside the frame 1. One end of the purified water pipe 2 is equipped with a fresh water outlet 7. The fresh water outlet 7 is connected to the inlet of the control console 8 via a connecting pipe 29, delivering fresh water to the control console 8 for testing. A controller outlet pipe 9 is located on the lower surface of the control console 8 as the final fresh water output port.

[0020] Working principle: When this type of reverse osmosis seawater desalination machine is needed, the raw seawater is first injected into the rotor 24 through the seawater inlet 25. High-pressure concentrate from multiple purified water pipes 2 located within the frame 1 is discharged from the concentrate outlet 6 and flows through the connecting pipe 29 to impact the turbine blades 23, causing them to rotate. The turbine 23 synchronously drives the rotor 24 to pressurize the incoming seawater. The pressurized seawater is then transported through the connecting pipe 29 to the filter inlet 26 of the filter 5. After physical filtration, it is discharged from the filter outlet 27. The filtered seawater then enters the water pump 4 through the connecting pipe 29 for secondary pressurization, and subsequently flows through the concentrate inlet 3 into the purified water pipe 2. Under high pressure, the seawater is separated by the reverse osmosis membrane 28, and the freshwater permeates through the membrane wall. The freshwater inlet pipe 11 flows into the control console 8 through the freshwater outlet 7, and is finally output by the controller outlet pipe 9. The remaining concentrated water is circulated to the concentrated water outlet 6 to continue driving the turbine 23, forming an energy closed loop. During maintenance, press the push button 20 to disengage the locking block 19 from the handle 22, rotate the handle 22 to push the inclined push block 18 to slide axially, and the inclined surface of the inclined push block 18 squeezes the inclined block 16 to move laterally, driving the connecting rod 15 to cause the circumferentially distributed abutment blocks 14 to expand radially synchronously, and evenly press the sealing ring 12 to achieve rapid sealing of the end cover 10. The check ring 13 prevents backflow. When disassembling, rotate the handle 22 in the opposite direction, the first spring 17 resets the inclined block 16, and the second spring 21 pushes the locking block 19 to automatically lock the handle 22.

[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 reverse osmosis seawater desalination machine, comprising a frame (1), characterized in that: The frame (1) is equipped with a water purification pipe (2), the water purification pipe (2) is equipped with a reverse filter membrane (28), the water purification pipe (2) is equipped with an end cap (10), the end cap (10) is equipped with a sealing component, and the frame (1) is equipped with an energy-saving component. The sealing assembly includes a sealing ring (12), which is fitted on the outer wall of the end cap (10). A stop block (14) is slidably connected to the inner wall of the end cap (10). One side of the outer wall of the stop block (14) abuts against the inner wall of the sealing ring (12). A connecting rod (15) is fixedly connected to the other side of the outer wall of the stop block (14). A wedge block (16) is fixedly connected to one end of the connecting rod (15). A wedge push block (18) is slidably connected to the inner wall of the end cap (10). The wedge push block (18) is slidably connected to the wedge block (16). One end of the wedge push block (18) is located outside the end cap (10).

2. The reverse osmosis seawater desalination machine according to claim 1, characterized in that: The energy-saving components include a water turbine (23) and a runner (24). The water turbine (23) is located outside the frame (1), and the runner (24) is located outside the frame (1). The output end of the water turbine (23) is fixedly connected to the inside of the runner (24). One end of the outer wall of the water purification pipe (2) is provided with a concentrated water outlet (6). The concentrated water outlet (6) is connected to the water inlet of the water turbine (23) through a connecting pipe (29). The lower surface of the water turbine (23) is provided with a water outlet, and the upper surface of the runner (24) is provided with a seawater inlet (25).

3. A reverse osmosis seawater desalination machine according to claim 2, characterized in that: The frame (1) is equipped with a filter (5), the filter (5) has a filter inlet (26) on its outer wall, and a filter outlet (27) on its outer wall. The outlet of the impeller (24) is connected to the filter inlet (26) via a connecting pipe (29).

4. A reverse osmosis seawater desalination machine according to claim 3, characterized in that: The frame (1) is equipped with a water pump (4). The filter outlet (27) is connected to the water pump (4) inlet via a connecting pipe (29). The other side of the outer wall of the water purification pipe (2) is equipped with a concentrated water inlet (3). The concentrated water inlet (3) is connected to the filter outlet (27) via a connecting pipe (29).

5. A reverse osmosis seawater desalination machine according to claim 1, characterized in that: The end cap (10) is rotatably connected to a handle (22), which abuts against one end of the inclined push block (18) when it is retracted.

6. A reverse osmosis seawater desalination machine according to claim 5, characterized in that: The end cap (10) has a sliding block (19) on its inner wall, and a push button (20) is fixedly connected to the outer wall of the block (19). The block (19) is engaged with the handle (22). The end cap (10) has a second spring (21) inside it. One end of the second spring (21) is fixedly connected to one end of the block (19), and the other end of the second spring (21) is fixedly connected to the inner wall of the end cap (10).

7. A reverse osmosis seawater desalination machine according to claim 1, characterized in that: The outer wall of the connecting rod (15) is fitted with a spring (17), one end of the spring (17) is fixedly connected to the outer wall of the inclined block (16), and the other end of the spring (17) is fixedly connected to the inner wall of the end cap (10). The inside of the water purification pipe (2) is provided with a reverse filter membrane (28). The outer wall of the end cap (10) is fixedly connected with a check ring (13), and the inner wall of the end cap (10) is fixedly connected with a fresh water outlet pipe (11). One end of the fresh water outlet pipe (11) is located inside the reverse filter membrane (28).

8. A reverse osmosis seawater desalination machine according to claim 1, characterized in that: The frame (1) is equipped with a control console (8), and one end of the water purification pipe (2) is equipped with a fresh water outlet (7). The fresh water outlet (7) is connected to the water inlet of the control console (8) through a connecting pipe (29). The lower surface of the control console (8) is equipped with a controller water outlet pipe (9).

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