Portable reverse osmosis type brackish water desalination device

Abstract

The utility model relates to the field of brackish water desalination device discloses a portable reverse osmosis type brackish water desalination device, including the casing, the bottom end of casing left surface is fixedly connected with the water outlet pipe that penetrates, the casing top end is sleeved with the sealing cover, the outer surface of sealing cover is provided with the rolling assembly, the inside of rolling assembly is provided with the water inlet pipe, the inside of casing is provided with the sealing assembly, the sealing assembly includes the fixed ring, the fixed ring fixedly connected in the inner wall of casing, the fixed ring top fixedly connected with the sealing washer, the upper surface of sealing washer is equipped with the round hole, the round hole inner wall inserts with the locating post. In the utility model, through the cooperation and cooperation of fixed ring and locating post, convex block and locating groove and multilayer filter screen layered design, can replace filter screen alone, avoid integral dismounting, reduce maintenance cost, positioning ring and buckle joint fixing, do not need tool to dismount, adapt to the open -air scene, ensure that the device uses the convenience.

Description

Technical Field

[0001] This utility model relates to the field of brackish water desalination devices, and in particular to a portable reverse osmosis brackish water desalination device. Background Technology

[0002] In scenarios such as field exploration, desert scientific research, maritime navigation, and emergency disaster relief, freshwater resources are often scarce and difficult to obtain directly, while brackish water is widespread. Brackish water contains high salt content and many impurities, and direct consumption can seriously harm human health, even causing life-threatening problems such as dehydration and electrolyte imbalance. Equipment that can convert brackish water into drinkable freshwater is crucial to ensuring life safety. Especially in these scenarios, personnel often cannot rely on fixed water supply facilities, making the need for portable and high-efficiency desalination equipment even more urgent. Its performance is directly related to the continuous operation and the survival of personnel.

[0003] Portable reverse osmosis brackish water desalination equipment can achieve high-efficiency desalination and relatively low energy consumption, making it an important piece of equipment for brackish water desalination.

[0004] However, the filters built into traditional devices are mostly fixed connections, making disassembly and reassembly cumbersome. Furthermore, the connection between the sealing cap and the housing is often a simple snap-fit, lacking a stable structure for the filter. As a result, in mobile or bumpy environments, the internal water often leaks due to unstable sealing, affecting the device's sealing performance and effectiveness. When desalinating brackish water, the inlet pipe is quite long and is often manually wound, making water collection difficult. This often results in low water collection efficiency, messy and tangled pipes, affecting reusability and making it difficult to adapt to the needs of complex environments.

[0005] To address this problem, a portable reverse osmosis brackish water desalination device is proposed. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a portable reverse osmosis brackish water desalination device, which aims to improve the existing brackish water desalination devices. These devices suffer from cumbersome filter screen disassembly, lack of stable structure between the sealing cap and the shell leading to easy leakage during movement and bumps, and the inconvenience of manually winding and storing the inlet pipe, resulting in low water extraction efficiency and messy pipelines, making them difficult to adapt to the needs of complex environments.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a portable reverse osmosis brackish water desalination device, comprising a shell, an outlet pipe fixedly connected to the bottom end of the left surface of the shell, a sealing cap sleeved on the top end of the shell, a winding assembly provided on the outer surface of the sealing cap, an inlet pipe provided inside the winding assembly, and a sealing assembly provided inside the shell. The sealing assembly includes a fixing ring, which is fixedly connected to the inner wall of the housing. A sealing gasket is fixedly connected to the top of the fixing ring. A circular hole is opened on the upper surface of the sealing gasket. A positioning post is inserted into the inner wall of the circular hole. A reverse osmosis membrane is fixedly connected to the upper surface of the positioning post. A second filter screen is placed on the upper surface of the reverse osmosis membrane. A third filter screen is placed on the upper surface of the second filter screen. A positioning groove is opened on the inner wall of the housing.

[0008] As a further description of the above technical solution: The sealing assembly also includes a positioning ring, which is fixedly connected to the outer surface of the housing. A buckle is fixedly connected to the bottom end of the sealing cover, and a fixing plate is fixedly connected to the top end of the inner wall of the sealing cover.

[0009] As a further description of the above technical solution: The winding assembly includes a support plate, which is fixedly connected to the right surface of the sealing cover. A positioning block is elastically connected to the inner wall of the left end of the support plate via a limiting spring. A winding column is elastically connected to the inner wall of the right end of the support plate via a torsion spring. A slot is provided at the front end of the upper surface of the winding column.

[0010] As a further description of the above technical solution: The outer surfaces of the reverse osmosis membrane, filter screen two, and filter screen three are provided with protrusions, which slide on the inner wall of the positioning groove.

[0011] As a further description of the above technical solution: The lower surface of the fixing plate is in contact with the upper surface of the filter screen. A locking block is provided at the bottom of the rear surface of the buckle. The locking block is engaged with the bottom of the positioning ring. Both the upper and lower ends of the rear surface of the locking block are set as bevels.

[0012] As a further description of the above technical solution: The top of the front surface of the positioning block is convex, the positioning block is slidably connected to the front surface of the support plate, and the left end of the lower surface of the positioning block is inclined.

[0013] As a further description of the above technical solution: The water inlet pipe is wound around the outer surface of the winding column.

[0014] As a further description of the above technical solution: The winding column is rotatably connected to the inner surface of the support plate, and the positioning block is inserted into the inner wall of the slot.

[0015] This utility model has the following beneficial effects: 1. In this utility model, through the coordinated cooperation of the fixing ring and positioning post, the protrusion and positioning groove, and the multi-layer filter design, the filter can be replaced individually, avoiding overall disassembly and reducing maintenance costs. The positioning ring and buckle are fixed together, and can be disassembled and assembled without tools, making it suitable for outdoor scenarios and ensuring the ease of use of the device.

[0016] 2. In this utility model, through the cooperation of the limiting spring and positioning block of the winding assembly, and the winding column and the slot, the water inlet pipe can be automatically wound up under the action of the torsion spring, and the unfolded length can be fixed. When winding, the positioning block can be moved to release the limit, and the pipe will be automatically wound up, reducing the preparation time when collecting water in the field and improving the convenience of using the device. Attached Figure Description

[0017] Figure 1 This is a front view of the three-dimensional structure of the overall device in this utility model; Figure 2 This is a three-dimensional cross-sectional diagram of the shell and sealing assembly in this utility model. Figure 3 This is a front view schematic diagram of the three-dimensional structure of the positioning ring and buckle in this utility model; Figure 4 This is a three-dimensional cross-sectional diagram of the winding assembly in this utility model.

[0018] Legend: 1. Shell; 2. Inlet pipe; 3. Outlet pipe; 4. Sealing cap; 5. Sealing assembly; 511. Fixing ring; 512. Sealing gasket; 513. Positioning post; 514. Reverse osmosis membrane; 515. Filter screen two; 516. Filter screen three; 517. Positioning groove; 521. Positioning ring; 522. Buckle; 523. Fixing plate; 6. Rewinding assembly; 61. Support plate; 62. Limiting spring; 63. Positioning block; 64. Rewinding post; 65. Slot; 66. Torsion spring. Detailed Implementation

[0019] 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.

[0020] Reference Figure 1 , Figure 2This utility model provides an embodiment of a portable reverse osmosis brackish water desalination device, comprising a cylindrical hollow shell 1, which provides installation space and a protective outer shell for the internal components, ensuring structural stability while reducing overall weight and facilitating portability. A water outlet pipe 3 is fixedly connected to the bottom of the left side of the shell 1, with one end connected to the interior of the shell 1 and the other end extending to the exterior, for discharging desalinated water from the device. A sealing cap 4 is fitted onto the top of the shell 1, fitting snugly to form a seal inside the shell 1 to prevent water leakage during desalination and facilitating the replacement of internal components. The sealing cap 4 is externally sealed. The device is equipped with a winding assembly 6, which is used to store and organize the water inlet pipe 2 to prevent it from scattering and tangling, thus improving the portability of the device. The water inlet pipe 2 is installed inside the winding assembly 6. One end of the water inlet pipe 2 can be inserted into the brackish water source, and the other end is connected to the inside of the housing 1. A small water pump is installed inside the housing 1. The small water pump and the water inlet pipe 2 work together to introduce the brackish water to be desalinated into the device. The small water pump (not shown in the figure) is existing technology and can be implemented by those skilled in the art, so it will not be described in detail. A sealing assembly 5 is installed inside the housing 1. The sealing assembly 5 is used to enhance the sealing of the inside of the housing 1 and to position and fix the internal filter parts to ensure that the desalination process is stable.

[0021] Reference Figure 1 - Figure 3The sealing assembly 5 includes a fixing ring 511, which is a ring-shaped structure and is horizontally fixed to the lower middle part of the inner wall of the housing 1. It serves to support the filter components above and provide a stable mounting base. A sealing gasket 512 is fixedly connected to the top of the fixing ring 511. The sealing gasket 512 is made of rubber and has good elasticity and sealing properties. It fills the gap between the fixing ring 511 and the reverse osmosis membrane 514, preventing unfiltered water from leaking from the edges. A circular hole is formed on the upper surface of the sealing gasket 512, and a positioning post 513 is inserted into the inner wall of the hole. The positioning post 513 is vertically positioned, with its lower end inserted into the circular hole of the sealing gasket 512 and its upper end connected to the reverse osmosis membrane 514. This positioning post positions the sealing gasket 512 and prevents it from shifting. A reverse osmosis membrane 514 is fixedly connected to the upper surface of the positioning column 513. The reverse osmosis membrane 514 is the core component of the desalination device. Utilizing the principle of reverse osmosis, it can effectively intercept salt and impurities in brackish water, allowing water molecules to pass through the membrane to achieve water desalination. A second filter screen 515 is placed on the upper surface of the reverse osmosis membrane 514. The second filter screen 515 is a fine filter screen with a small mesh diameter, which can further filter out fine particulate impurities in the water and prevent them from clogging the membrane pores of the reverse osmosis membrane 514. A third filter screen 516 is placed on the upper surface of the second filter screen 515. The third filter screen 516 is a coarse filter screen with a larger mesh diameter, which first performs preliminary filtration on the brackish water entering the shell 1, intercepting larger impurities such as silt in the water. A positioning groove 517 is opened on the inner wall of the shell 1. 7 is vertically opened along the inner wall of the housing 1, matching the protrusions on the outer surfaces of the reverse osmosis membrane 514, filter screen 2 515, and filter screen 3 516, providing a sliding track and positioning constraint for the protrusions. The sealing assembly 5 also includes a positioning ring 521, which is an annular structure and is fixedly sleeved on the outer surface of the housing 1, providing a snap-fit ​​point for the buckle 522. The bottom end of the sealing cover 4 is fixedly connected to the buckle 522, which has a certain elasticity and can be tightly engaged with the positioning ring 521, firmly connecting the sealing cover 4 to the housing 1 and enhancing the sealing performance of the device. The top end of the inner wall of the sealing cover 4 is fixedly connected to a fixing plate 523, which is horizontally set. When the sealing cover 4 is fastened, its lower surface is tightly attached to the upper surface of the filter screen 3 516, thus protecting the filter screen. The third filter 516, the second filter 515, and the reverse osmosis membrane 514 are subjected to downward pressure to firmly fix them on the fixing ring 511, preventing the components from shifting due to water impact. The outer surfaces of the reverse osmosis membrane 514, the second filter 515, and the third filter 516 are provided with protrusions. The protrusions slide in the positioning groove 517 to ensure that each component maintains the correct position during installation and use, and to avoid rotation or displacement. The protrusions slide on the inner wall of the positioning groove 517. The lower surface of the fixing plate 523 is in contact with the upper surface of the third filter 516. The bottom end of the rear surface of the buckle 522 is provided with a locking block. The locking block is engaged with the bottom end of the positioning ring 521. Both the upper and lower ends of the rear surface of the locking block are set as inclined surfaces. When the inclined surface of the locking block is squeezed, the buckle 522 will deform due to its own elasticity.

[0022] Reference Figure 1 , Figure 4 The winding assembly 6 includes a support plate 61, which is a U-shaped plate structure and is vertically fixed to the right surface of the sealing cover 4. It provides mounting support for components such as the winding post 64 and the positioning block 63. The positioning block 63 is elastically connected to the inner wall of the left end of the support plate 61 via a limiting spring 62. The limiting spring 62 always applies downward pressure to the positioning block 63, keeping it inserted in the slot 65 and positioning the winding post 64 to prevent it from rotating when not in use. The winding post 64 is elastically connected to the inner wall of the right end of the support plate 61 via a torsion spring 66. The winding post 64 is a cylindrical structure and, under the elastic force of the torsion spring 66, automatically retracts the water inlet pipe 2, facilitating its storage. A slot 65 is provided at the front end of the upper surface of the winding post 64, and the top of the front surface of the positioning block 63 is designed as a protrusion. The positioning block 63 is slidably connected to the front surface of the support plate 61, allowing the positioning block 63 to slide up and down the inner wall of the support plate 61 to achieve insertion and separation from the slot 65. The left end of the lower surface of the positioning block 63 is set as an inclined surface. When the water inlet pipe 2 needs to be released, the water inlet pipe 2 is pulled to drive the winding column 64 to rotate. The edge of the winding column 64 presses the inclined surface of the positioning block 63, which can cause the positioning block 63 to press the limiting spring 62 to retract upward and disengage from the slot 65, making it easy for the winding column 64 to rotate and release the water inlet pipe 2. The water inlet pipe 2 is wound around the outer surface of the winding column 64. When the winding column 64 rotates, the water inlet pipe 2 can be wound and stored or released. The winding column 64 is slidably connected to the inner surface of the support plate 61, allowing the winding column 64 to rotate flexibly to meet the needs of the water inlet pipe 2. The positioning block 63 is inserted into the inner wall of the slot 65.

[0023] Working principle: Before the device is put into use, the internal filtration structure is assembled and fixed. During installation, the fixing ring 511 is fixed to the inner wall of the housing 1, providing basic support for the entire filtration structure. The protrusions on the outer surfaces of the reverse osmosis membrane 514, filter screen 2 515, and filter screen 3 516 cooperate with the positioning grooves 517 on the inner wall of the housing 1. The multiple filter screens are inserted into the housing 1 in sequence along the positioning grooves 517. At this time, the positioning post 513 on the lower surface of the reverse osmosis membrane 514 is inserted into the round hole of the sealing gasket 512. The sealing gasket 512 is then inserted into the housing 1. Positioning is performed to ensure that the sealing gasket 512 will not shift during the filtration process. After assembly, the sealing cover 4 is inserted into the top of the housing 1. At this time, the lower surface of the fixing plate 523 on the inner wall of the sealing cover 4 is tightly attached to the upper surface of the filter screen 516, further pressing the filter screen. At the same time, the buckle 522 at the bottom of the sealing cover 4 is engaged with the positioning ring 521 on the outer surface of the housing 1 through the buckle block, ensuring the stability of the device splicing state, so that the sealing gasket 512 can seal stably and effectively prevent water leakage when the device is moved or bumped.

[0024] When brackish water desalination is needed, the inlet pipe 2 is wound up and fixed by the winding assembly 6. The winding post 64 is installed on the inner wall of the support plate 61, and the inlet pipe 2 is wound around the outer surface of the winding post 64. A torsion spring 66 is fixedly connected to one end of the winding post 64 away from the slot 65, and the other end of the torsion spring 66 is fixed to the inner wall of the support plate 61. In its natural state, the winding post 64 will tend to wind up. When the inlet pipe 2 is pulled outward, the winding post 64 rotates against the elastic force of the torsion spring 66. At this time, the L-shaped positioning block 63, which is elastically connected to the support plate 61 by the limiting spring 62, will move upward to compress the limiting spring 62 and temporarily release the limit because the inclined surface will be squeezed by the outer surface of the winding column 64. When the water inlet pipe 2 is pulled to the required length, the positioning block 63 will reset under the elastic force of the limiting spring 62 and be inserted into the corresponding slot 65 of the winding column 64 to fix the winding column 64, so that the water inlet pipe 2 remains extended to enter the brackish water source.

[0025] During the desalination process, brackish water enters the interior of the housing 1 through the inlet pipe 2, and is filtered through multiple layers of filter screens 516, 515, and reverse osmosis membrane 514 in sequence, gradually removing impurities, particulate matter, and some salt from the water. The filtered fresh water is discharged through the outlet pipe 3, which is fixed through the outer surface of the housing 1. After use, the part of the positioning block 63 extending outside the support plate 61 is pulled up, causing the positioning block 63 to compress the limiting spring 62 and disengage from the slot 65. The winding column 64 rotates in the opposite direction under the elastic force of the torsion spring 66, automatically winding the inlet pipe 2 back to its original position to prevent the pipe from becoming tangled. If cleaning or replacing the filter screen is required, the buckle 522 is opened and the positioning ring 521 is engaged, and the sealing cover 4 is removed. At this time, the device is tilted, and the multiple filter screens slide down along the positioning groove 517 by themselves, making it convenient for replacement and cleaning. The operation is convenient and adaptable to the needs of complex environments.

[0026] 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 portable reverse osmosis based brackish water desalination unit comprising a housing (1), characterized in that: A water outlet pipe (3) is fixedly connected to the bottom end of the left surface of the housing (1). A sealing cap (4) is sleeved on the top end of the housing (1). A winding assembly (6) is provided on the outer surface of the sealing cap (4). A water inlet pipe (2) is provided inside the winding assembly (6). A sealing assembly (5) is provided inside the housing (1). The sealing assembly (5) includes a fixing ring (511), which is fixedly connected to the inner wall of the housing (1). A sealing gasket (512) is fixedly connected to the top of the fixing ring (511). A circular hole is opened on the upper surface of the sealing gasket (512). A positioning post (513) is inserted into the inner wall of the circular hole. A reverse osmosis membrane (514) is fixedly connected to the upper surface of the positioning post (513). A second filter screen (515) is placed on the upper surface of the reverse osmosis membrane (514). A third filter screen (516) is placed on the upper surface of the second filter screen (515). A positioning groove (517) is opened on the inner wall of the housing (1).

2. The portable reverse osmosis brackish water desalination device according to claim 1, characterized in that: The sealing assembly (5) also includes a positioning ring (521), which is fixedly connected to the outer surface of the housing (1). The bottom end of the sealing cover (4) is fixedly connected to a buckle (522), and the top end of the inner wall of the sealing cover (4) is fixedly connected to a fixing plate (523).

3. The portable reverse osmosis brackish water desalination device according to claim 1, characterized in that: The winding assembly (6) includes a support plate (61), which is fixedly connected to the right surface of the sealing cover (4). The inner wall of the left end of the support plate (61) is elastically connected to a positioning block (63) via a limiting spring (62). The inner wall of the right end of the support plate (61) is elastically connected to a winding column (64) via a torsion spring (66). A slot (65) is provided at the front end of the upper surface of the winding column (64).

4. A portable reverse osmosis brackish water desalination device according to claim 1, characterized in that: The outer surfaces of the reverse osmosis membrane (514), filter screen two (515), and filter screen three (516) are provided with protrusions, and the protrusions slide on the inner wall of the positioning groove (517).

5. A portable reverse osmosis based brackish water desalination unit as claimed in claim 2, wherein: The lower surface of the fixing plate (523) is in contact with the upper surface of the filter screen (516). The bottom end of the rear surface of the buckle (522) is provided with a buckle block, which is engaged with the bottom end of the positioning ring (521). Both the upper and lower ends of the rear surface of the buckle block are set as inclined surfaces.

6. A portable reverse osmosis brackish water desalination device according to claim 3, characterized in that: The top of the front surface of the positioning block (63) is convex, the positioning block (63) is slidably connected to the front surface of the support plate (61), and the left end of the lower surface of the positioning block (63) is inclined.

7. A portable reverse osmosis based device for desalination of brackish water as claimed in claim 3 wherein: The water inlet pipe (2) is wound around the outer surface of the winding column (64).

8. A portable reverse osmosis brackish water desalination device according to claim 3, characterized in that: The winding column (64) passes through and is rotatably connected to the inner surface of the support plate (61), and the positioning block (63) is inserted into the inner wall of the slot (65).

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