Reverse osmosis membrane module and water treatment device

Abstract

The utility model relates to a reverse osmosis membrane assembly and a water treatment device. The reverse osmosis membrane assembly comprises a barrel, a reverse osmosis membrane, a clamping piece and two cover bodies, the barrel comprises a barrel body and first protruding parts, and the first protruding parts are arranged at the two ends of the barrel body. And the reverse osmosis membrane is arranged in the cylinder body. The two cover bodies comprise cover bodies, through holes and second protruding parts, and the two cover bodies cover the two ends of the barrel body respectively. The through hole is formed in the cover body; the second protruding part is arranged on the edge, close to the barrel body, of the cover body. Wherein one cover body is provided with a water outlet. The multiple clamping pieces are detachably arranged at the two ends of the barrel body, and the second protruding parts and the first protruding parts are connected through the clamping pieces. According to the water treatment device, the water outlet through hole is formed in the cover body which is small in size and mass, when the reverse osmosis membrane assembly is installed and replaced, the barrel body which is difficult to operate does not need to be operated, only the cover body needs to be replaced or the direction of the opening needs to be turned, and the installation and replacement process of the water treatment device is more convenient and faster.

Description

Technical Field

[0001] This application relates to the field of physical separation device technology, and in particular to a reverse osmosis membrane module. Background Technology

[0002] With the development of separation technology, reverse osmosis membrane technology emerged. When water to be treated flows through a reverse osmosis membrane, some substances cannot pass through, thus achieving the effect of separating water from these substances. The reverse osmosis membrane module is formed by setting up structures such as membrane shell and membrane cover, allowing water to flow smoothly through the reverse osmosis membrane to achieve water treatment.

[0003] In related technologies, a water treatment device is formed by connecting multiple reverse osmosis membrane modules; the multiple reverse osmosis membranes are interconnected through openings on their external membrane housings, so that the water to be treated can pass through the multiple reverse osmosis membranes for treatment, thereby improving the treatment effect.

[0004] However, during the use of the aforementioned reverse osmosis membrane modules, different sizes are required depending on the different installation or treatment needs. When multiple membrane housings are installed in an arrangement, the openings on the surface of the membrane housings need to face the corresponding direction to facilitate communication with other reverse osmosis membrane modules. As a result, there are various sizes or opening directions of membrane housings on the market. When installing or replacing reverse osmosis membrane modules, the membrane housings need to be replaced according to the actual required size or opening direction. Due to the large size and weight of the membrane housings, installation, replacement, or reversal of the opening direction is troublesome, resulting in low efficiency. Utility Model Content

[0005] Therefore, it is necessary to provide a reverse osmosis membrane module and water treatment device to address the problems of large membrane housing volume and weight, difficulty in adjustment, and low operating efficiency.

[0006] On one hand, this application provides a reverse osmosis membrane assembly, comprising: a cylindrical body, including a cylindrical body and a first protrusion, wherein the first protrusion is provided at both ends of the cylindrical body; a reverse osmosis membrane, disposed inside the cylindrical body, the reverse osmosis membrane including a central tube and a water flow channel, the water flow channel being arranged around the outside of the central tube; a first cover, including a first cover body, a first through hole, a water outlet and a second protrusion, the first cover body covering one end of the cylindrical body, the end of the cylindrical body near the first cover body being referred to as the first end; the first through hole and the water outlet are both opened in the first cover body, the first through hole communicating with the water flow channel, the water outlet communicating with the central tube; the second protrusion is provided at the edge of the first cover body near the cylindrical body. The second cover includes a second cover body, a second through hole, and a third protrusion. The second cover body is disposed on the other end of the cylindrical body, and the end of the cylindrical body near the second cover body is referred to as the second end. The second through hole is formed in the second cover body and communicates with the water flow channel. The third protrusion is disposed on the edge of the second cover body near the cylindrical body. Multiple snap-fit ​​members are provided and detachably disposed at both ends of the cylindrical body. The second protrusion and the first protrusion at the first end are connected by a portion of the snap-fit ​​members; the third protrusion and the first protrusion at the second end are connected by another portion of the snap-fit ​​members.

[0007] In some embodiments, the first through hole is formed on the side wall of the first cover body, and the water outlet is formed on the bottom surface of the first cover body.

[0008] In some embodiments, the second cover further includes a handle located on the bottom surface of the second cover body; the second through hole is formed on the side wall of the second cover body.

[0009] In some embodiments, the snap-fit ​​component includes two annular clamps, referred to as the first clamp and the second clamp, which are respectively located at both ends of the cylindrical body; the second protrusion and the first protrusion located at the first end abut against the first clamp, and the third protrusion and the first protrusion located at the second end abut against the second clamp.

[0010] In some embodiments, both the inner walls of the first clamp and the inner walls of the second clamp are provided with limiting grooves; the side of the second protrusion away from the first protrusion abuts against the inner wall of the limiting groove of the first clamp, and the side of the first protrusion at the first end away from the second protrusion abuts against the inner wall of the limiting groove of the first clamp. The side of the third protrusion away from the first protrusion abuts against the inner wall of the limiting groove of the second clamp, and the side of the first protrusion at the second end away from the third protrusion abuts against the inner wall of the limiting groove of the second clamp.

[0011] In some embodiments, both the first clamp and the second clamp include a snap-fit ​​mechanism and two retaining rings, the retaining rings being semi-circular, with one end of each retaining ring hinged together; the other end of each retaining ring is connected through the snap-fit ​​mechanism; and the limiting groove is formed on the inner wall of the retaining ring.

[0012] In some embodiments, each of the two retaining rings has a retaining groove at one end that is far from each other. The retaining mechanism includes a retaining rod, one end of which is hinged to the retaining groove of one of the retaining rings, and the other end of which is engaged in the retaining groove of the other retaining ring.

[0013] In some embodiments, the reverse osmosis membrane assembly further includes a first seal and a second seal, the first seal being sandwiched between the cylinder and the first cover, the second protrusion being connected to the first protrusion located at the first end via the first seal; the second seal being sandwiched between the cylinder and the second cover, the third protrusion being connected to the first protrusion located at the second end via the second seal.

[0014] In some embodiments, both the first seal and the second seal are made of polytetrafluoroethylene.

[0015] On the other hand, this application also provides a water treatment device, which includes the reverse osmosis membrane assembly as described above, wherein a plurality of the reverse osmosis membrane assemblies are arranged side by side, and adjacent reverse osmosis membrane assemblies are connected to each other through a first through hole and a second through hole; the water treatment device further includes an output pipe, and the outlet of the plurality of reverse osmosis membrane assemblies is connected to the output pipe.

[0016] The aforementioned reverse osmosis membrane module and water treatment device, by setting a cylindrical body and a first cover and a second cover respectively covering both ends of the cylindrical body, encloses the reverse osmosis membrane inside the cylindrical body to form a reverse osmosis membrane module. A first sealing element is provided between the cylindrical body and the first cover, and a second sealing element is provided between the cylindrical body and the second cover, effectively improving the sealing performance. The water to be treated enters the interior of the cylindrical body through the first or second through hole, flows through the reverse osmosis membrane for treatment, and then flows out from the outlet to obtain treated water. Some snap-fit ​​parts snap onto the first protrusion and the second protrusion, while other snap-fit ​​parts snap onto the first protrusion and the third protrusion, fixing the first cover and the second cover to the cylindrical body. The first cover and the second cover can be quickly disassembled and replaced by removing the snap-fit ​​parts, making the operation simple and quick. By placing the outlet, first through hole, and second through hole on a smaller, lighter cover, the installation and replacement of reverse osmosis membrane modules eliminate the need to manipulate the more difficult-to-operate cylinder. Only the first or second cover needs to be replaced, or the opening direction reversed, making the installation and replacement of the water treatment device much more convenient and faster. Furthermore, only one type of cylinder needs to be produced when manufacturing reverse osmosis membrane modules, effectively reducing the variety of cylinder types. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a reverse osmosis membrane module and a water treatment device according to an embodiment of this application.

[0018] Figure 2 This is a schematic diagram of the first cover structure in a reverse osmosis membrane module, which is an embodiment of a reverse osmosis membrane module and a water treatment device according to this application.

[0019] Figure 3 This is a schematic diagram of the second cover structure in a reverse osmosis membrane module, which is an embodiment of a reverse osmosis membrane module and a water treatment device according to this application.

[0020] Figure 4 This is a cross-sectional view of the first end of the reverse osmosis membrane module and water treatment device according to an embodiment of the present application, along the plane containing the center line of the cylinder.

[0021] Figure 5 This application discloses an embodiment of a reverse osmosis membrane module and a water treatment device. The reverse osmosis membrane module... Figure 4 Enlarged view of point A in the middle.

[0022] Figure 6 This is a cross-sectional view of the second end of the reverse osmosis membrane module and water treatment device according to an embodiment of the present application, along the plane containing the center line of the cylinder.

[0023] Figure 7 This application discloses an embodiment of a reverse osmosis membrane module and a water treatment device. The reverse osmosis membrane module... Figure 6Enlarged view of point B in the middle.

[0024] Figure 8 This is a schematic diagram of the structure of the first clamp and the second clamp in an embodiment of a reverse osmosis membrane module and water treatment device according to this application.

[0025] In the diagram, 100 is the cylinder body; 110 is the cylinder body itself; 120 is the first protrusion; 200 is the first cover; 210 is the first cover body; 220 is the first through hole; 230 is the water outlet; 240 is the second protrusion; 300 is the second cover; 310 is the second cover body; 320 is the second through hole; 330 is the third protrusion; 340 is the handle; 400 is the snap-fit ​​component; 410 is the first clamp; 411 is the limiting groove; 412 is the snap-fit ​​mechanism; 4121 is the snap-fit ​​rod; 4122 is the snap-fit ​​connector; 413 is the snap ring; 4131 is the snap-fit ​​groove; 420 is the second clamp; 500 is the first seal; and 600 is the second seal. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0028] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] It should be noted that if a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component. If a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0032] See Figure 1 , Figure 1 The diagram shows an overall structural schematic of a reverse osmosis membrane assembly according to an embodiment of this application. The reverse osmosis membrane assembly provided in an embodiment of this application includes a cylinder 100, a reverse osmosis membrane (not shown in the figure), a first cover 200, a second cover 300, and a snap-fit ​​member 400.

[0033] The cylindrical body 100 includes a cylindrical body 110 and a first protrusion 120, with the first protrusion 120 provided at both ends of the cylindrical body 110. A reverse osmosis membrane is disposed inside the cylindrical body 110, and the reverse osmosis membrane includes a central tube and a water flow channel, with the water flow channel surrounding the outside of the central tube.

[0034] The first cover 200 includes a first cover body 210, a first through hole 220, a water outlet 230, and a second protrusion 240. The first cover body 210 is located on one end of the cylindrical body 110, and the end of the cylindrical body 110 closest to the first cover 200 is referred to as the first end. The first through hole 220 and the water outlet 230 are both located on the first cover body 210. The first through hole 220 is connected to a water flow channel, and the water outlet 230 is connected to a central pipe. The second protrusion 240 is located on the edge of the first cover body 210 near the cylindrical body 110.

[0035] The second cover 300 includes a second cover body 310, a second through hole 320, and a third protrusion 330. The second cover body 310 covers the other end of the cylindrical body 110, and the end of the cylindrical body 110 near the second cover 300 is referred to as the second end. The second through hole 320 is formed in the second cover body 310 and communicates with the water flow channel. The third protrusion 330 is provided at the edge of the second cover body 310 near the cylindrical body 110.

[0036] Multiple snap-fit ​​connectors 400 are provided and detachably disposed at both ends of the cylindrical body 110. It should be noted that the first cover 200 and the second cover 300 are each detachably connected to both ends of the cylindrical body 110 via snap-fit ​​connectors 400. Specifically, for the multiple snap-fit ​​connectors 400, some snap-fit ​​connectors 400 connect the second protrusion 240 to the first protrusion 120 located at the first end; other snap-fit ​​connectors 400 connect the third protrusion 330 to the first protrusion 120 located at the second end.

[0037] To facilitate understanding, the structure of the reverse osmosis membrane will be explained here.

[0038] For example, in some embodiments, the reverse osmosis membrane has a cylindrical structure, comprising a membrane shell, and sequentially arranged from the outside to the inside: a water flow channel, a filter membrane, a permeate collection layer, and a central tube. The filter membrane and the permeate collection layer separate the water flow channel and the central tube. When water enters the cylinder 100, under natural osmosis, the water flows within the water flow channel. When a pressure higher than the osmotic pressure of the solution is applied, the liquid in the liquid to be treated in the water flow channel passes through the filter membrane and enters the central tube. The dirt and ions in the liquid to be treated are blocked on the side of the filter membrane near the water flow channel. The liquid in the water flow channel washes away the accumulated dirt and ions, forming concentrated water. Thus, the central tube contains the treated pure liquid, and the water flow channel contains the concentrated water.

[0039] Both the first through hole 220 and the second through hole 320 are connected to the water flow channel of the reverse osmosis membrane. The first through hole 220 can be used as an inlet or a concentrate outlet. Correspondingly, the second through hole 320 can be used as a concentrate outlet or an inlet, ensuring that the liquid to be treated can enter the cylinder 100 through one of the through holes and can be discharged through the other through hole. The outlet 230 is connected to the central tube of the reverse osmosis membrane to obtain the pure liquid treated by the reverse osmosis membrane.

[0040] See Figure 4 , Figure 5 , Figure 6 and Figure 7 When the first cover 200 is placed on the first end of the cylinder 100, the second protrusion 240 is connected to the first protrusion 120 at the first end through the snap-fit ​​400; when the second cover 300 is placed on the second end of the cylinder 100, the third protrusion 330 is connected to the first protrusion 120 at the second end through the snap-fit ​​400. By setting the snap-fit ​​400, the first cover 200 and the second cover 300 can be stably installed at both ends of the cylinder 100, and the first cover 200 and the second cover 300 can be installed and removed by installing and removing the snap-fit ​​400. The installation and removal operation is simple and quick.

[0041] The first protrusion 120 can be set as a ring structure or multiple protrusions can be spaced apart along the two ends of the cylindrical body 110. Preferably, in this embodiment, the first protrusion 120 is set as a ring structure, and the second protrusion 240 and the third protrusion 330 are set as ring structures corresponding to the first protrusion 120. Since multiple reverse osmosis membrane modules are usually installed on the side or end face of other reverse osmosis membrane modules during installation, with the above setting, the first cover body 210 and the second cover body 310 covering the end of the cylindrical body 110 can also be connected to the end of the cylindrical body 100 by the snap-fit ​​400 after rotating a certain angle along the central axis of the cylindrical body 110. In this way, by adjusting the first cover body 200 and the second cover body 300, the first through hole 220 and the second through hole 320 can be rotated to the required installation direction or position, and the first through hole 220 and the second through hole 320 of the reverse osmosis membrane module can be connected to the first through hole 220 and the second through hole 320 of other reverse osmosis membrane modules with a shorter distance.

[0042] When using the reverse osmosis membrane module, the reverse osmosis membrane is installed inside the cylinder 100 through the openings at both ends of the cylinder 100. The appropriate first cover 200 and second cover 300 are selected according to the required through-hole diameter. Then, the first cover body 210 and second cover body 310 are adjusted according to the installation positions of other reverse osmosis membrane modules, so that the first through-hole 220 and second through-hole 320 face the appropriate installation direction. The first cover body 210 and second cover body 310 are respectively installed at both ends of the cylinder 110 using the snap-fit ​​connector 400. The first through-hole 220 and second through-hole 320 of the reverse osmosis membrane module are connected to other reverse osmosis membrane modules or external devices. Water is injected into the cylinder 100 through the first through-hole 220 and pressurized. The treated pure liquid is obtained from the outlet 230, and the concentrate is obtained from the second through-hole 320.

[0043] With the above configuration, the dimensions of the first through hole 220 and the second through hole 320 can be changed simply by replacing the first cover 200 and the second cover 300; the orientation of the first through hole 220 and the second through hole 320 can be changed by rotating the first cover body 210 and the second cover body 310, facilitating communication with other reverse osmosis membrane modules or external devices. This eliminates the need to adjust or replace the bulky and heavy cylinder 100, effectively reducing the difficulty of installation and adjustment, and making the process convenient and quick. By providing multiple cover models based on the size, position, and number of the first through hole 220 and the second through hole 320, the needs of different installation conditions can be met. During manufacturing, only cover models of different specifications need to be produced, reducing the number of models of the bulky and heavy cylinder 100, effectively saving production costs.

[0044] In some embodiments, the first through hole 220 is formed on the side wall of the first cover body 210, and the water outlet 230 is formed on the bottom surface of the first cover body 210.

[0045] See Figure 2 It should be noted that the outlet 230 is located in the middle of the bottom surface of the first cover body 210, which facilitates direct connection with the central tube in the middle of the reverse osmosis membrane; the first through hole 220 is located on the side wall of the first cover body 210, which facilitates adjusting the orientation of the first through hole 220 by rotating the first cover body 210, and ensures that the first through hole 220 and the outlet 230 do not interfere with each other.

[0046] In addition, the first cover body 200 also includes a first abutment (not shown in the figure). The first abutment is connected to the inner wall of the first cover body 210 by a connecting rod or by welding. When the first cover body 210 is installed at the end of the cylindrical body 110, all or part of the first abutment is located inside the cylindrical body 110. The first abutment abuts against the end of the reverse osmosis membrane inside the cylindrical body 110, providing a limit for the reverse osmosis membrane.

[0047] In some embodiments, the second cover 300 further includes a handle 340 disposed on the bottom surface of the second cover body 310; and a second through hole 320 is formed on the side wall of the second cover body 310.

[0048] See Figure 3 It should be noted that the operator can easily and quickly operate by rotating the handle 340 or replacing the second cover 300; the second through hole 320 is located on the side wall of the second cover body 310, which makes it easy to adjust the orientation of the second through hole 320 by rotating the second cover body 310.

[0049] In addition, the second cover 300 also includes a second abutment (not shown in the figure). The second abutment is connected to the inner wall of the second cover body 310 by means of a connecting rod or by welding. When the second cover body 310 is installed at the end of the cylindrical body 110, all or part of the second abutment is located inside the cylindrical body 110. The second abutment abuts against the end of the reverse osmosis membrane inside the cylindrical body 110 to provide a limit. This, together with the first abutment located at the other end of the reverse osmosis membrane, prevents the reverse osmosis membrane from shifting inside the cylindrical body 110.

[0050] See Figure 5 , Figure 7 and Figure 8 In some embodiments, the snap-fit ​​member 400 includes two annular clamps, referred to as the first clamp 410 and the second clamp 420, which are respectively located at both ends of the cylindrical body 110; the second protrusion 240 and the first protrusion 120 located at the first end abut against the first clamp 410, and the third protrusion 330 and the first protrusion 120 located at the second end abut against the second clamp 420.

[0051] It should be noted that the first clamp 410 and the second clamp 420 have the same structure, with the first clamp 410 located at the first end and the second clamp 420 located at the second end. The first clamp 410 provides a limit for the second protrusion 240 and the first protrusion 120 located at the first end, allowing the first cover 200 to be installed at the end of the cylinder 100; the second clamp 420 provides a limit for the third protrusion 330 and the first protrusion 120 located at the second end, allowing the second cover 300 to be installed at the end of the cylinder 100. By providing two annular clamps, the first cover 200 and the second cover 300 can be installed and replaced respectively.

[0052] See Figure 5 , Figure 7 and Figure 8In some embodiments, the inner walls of the first clamp 410 and the second clamp 420 are both provided with limiting grooves 411; the side of the second protrusion 240 away from the first protrusion 120 abuts against the inner wall of the limiting groove 411 of the first clamp 410, and the side of the first protrusion 120 at the first end away from the second protrusion 240 abuts against the inner wall of the limiting groove 411 of the first clamp 410. The side of the third protrusion 330 away from the first protrusion 120 abuts against the inner wall of the limiting groove 411 of the second clamp 420, and the side of the first protrusion 120 at the second end away from the third protrusion 330 abuts against the inner wall of the limiting groove 411 of the second clamp 420.

[0053] It should be noted that after the first clamp 410 and the second clamp 420 are installed at the end of the cylinder body 110, the second protrusion 240 and the first protrusion 120 at the first end are located in the limiting groove 411 of the first clamp 410. The first clamp 410 provides opposing pressure to the second protrusion 240 and the first protrusion 120 at the first end, so that the second protrusion 240 and the first protrusion 120 at the first end are tightly connected. Similarly, the second clamp 420 provides opposing pressure to the third protrusion 330 and the first protrusion 120 at the second end, so that the third protrusion 330 and the first protrusion 120 at the second end are tightly connected. By setting the limiting groove 411, the first clamp 410 and the second clamp 420 can be fitted onto the outer periphery of the cylinder 100, ensuring that the first cover 200 and the second cover 300 can be stably installed at the end of the cylinder 100, while the operation of the first clamp 410 and the second clamp 420 is not obstructed by other structures, making it easy to install and disassemble.

[0054] See Figure 8 In some embodiments, the first clamp 410 and the second clamp 420 both include a snap-fit ​​mechanism 412 and two snap rings 413. The snap rings 413 are semi-circular, and one end of each snap ring 413 is hinged together. The other end of each snap ring 413 is connected through the snap-fit ​​mechanism 412. A limiting groove 411 is formed on the inner wall of the snap ring 413.

[0055] It should be noted that the two retaining rings 413 can rotate along the hinge. During installation, the other ends of the two retaining rings 413 contact each other, forming a ring clamp. The other ends of the two retaining rings 413 are fixed by the locking mechanism 412 to ensure the stability of the installation. By setting up a structure with two hinged retaining rings 413 and locking mechanism 412, the installation and removal of the first clamp 410 and the second clamp 420 are made easier and faster.

[0056] See Figure 8In some embodiments, each of the two retaining rings 413 has a retaining groove 4131 at one end that is far apart from each other. The retaining mechanism 412 includes a retaining rod 4121, one end of which is hinged to the retaining groove 4131 of one of the retaining rings 413, and the other end of which is engaged in the retaining groove 4131 of the other retaining ring 413.

[0057] It should be noted that the snap-fit ​​groove 4131 is located at the edge of the other end of the two snap rings 413. When the other ends of the two snap rings 413 are in contact, the snap-fit ​​grooves 4131 on the two snap rings 413 are correspondingly set, so that the snap-fit ​​rod 4121 can be simultaneously set in the snap-fit ​​grooves 4131 of the two snap rings 413. The other end of the snap-fit ​​rod 4121 is provided with a snap-fit ​​connector 4122. The diameter of the snap-fit ​​connector 4122 is larger than the width of the snap-fit ​​grooves 4131 of the two snap rings 413. During installation, when the other ends of the two snap rings 413 are in contact, the snap-fit ​​rod 4121 is rotated to move the other end of the snap-fit ​​rod 4121 into the snap-fit ​​groove 4131 of the other snap ring 413. At this time, the snap-fit ​​connector 4122 is located outside the snap-fit ​​groove 4131 of the other snap ring 413, and the end of the snap-fit ​​connector 4122 abuts against the side wall of the snap-fit ​​groove 4131 of the other snap ring 413, thereby providing a limit and ensuring stable contact between the two snap rings 413. During disassembly, rotating the locking rod 4121 moves its other end out of the locking groove 4131 of the other locking ring 413. At this time, the locking connector 4122 does not provide a limit, and the two locking rings 413 can rotate and separate. With the above settings, the first clamp 410 and the second clamp 420 can be disassembled and assembled without the use of additional tools, effectively improving operational efficiency.

[0058] See Figure 4 , Figure 5 , Figure 6 and Figure 7 In some embodiments, the reverse osmosis membrane assembly further includes a first seal 500 and a second seal 600. The first seal 500 is sandwiched between the cylinder 100 and the first cover 200, and the second protrusion 240 is connected to the first protrusion 120 at the first end through the first seal 500. The second seal 600 is sandwiched between the cylinder 100 and the second cover 300, and the third protrusion 330 is connected to the first protrusion 120 at the second end through the second seal 600.

[0059] It should be noted that after the reverse osmosis assembly is installed, the cylinder 100 and the first cover 200 apply pressure to the first seal 500, so that the first seal 500 fits tightly with the cylinder 100 and the first cover 200 to achieve a seal. Similarly, the cylinder 100 and the second cover 300 apply pressure to the second seal 600, so that the second seal 600 fits tightly with the cylinder 100 and the first cover 200, ensuring the sealing performance of the reverse osmosis assembly and preventing leakage of internal liquid from the connection between the first cover 200 and the cylinder 100 and the connection between the second cover 300 and the cylinder 100 during the use of the reverse osmosis assembly.

[0060] Furthermore, the surface of the first sealing element 500 that contacts the cylinder 100 and the first cover 200 is provided with a fourth protrusion, and the surfaces of the cylinder 100 and the first cover 200 that contact the first sealing element 500 are provided with a first groove, with the fourth protrusion correspondingly disposed within the first groove of the cylinder 100 and the first cover 200; the surface of the second sealing element 600 that contacts the cylinder 100 and the second cover 300 is provided with a fifth protrusion, and the surfaces of the cylinder 100 and the second cover 300 that contact the second sealing element 600 are provided with a second groove, with the fifth protrusion correspondingly disposed within the second groove of the cylinder 100 and the second cover 300. Through the above arrangement, the connection and sealing performance between the first sealing element 500 and the cylinder 100 and the first cover 200 can be improved. Similarly, the connection and sealing performance between the second sealing element 600 and the cylinder 100 and the second cover 300 can be improved. Moreover, during installation, the sealing element can be positioned using the grooves and the protrusions on the sealing element, preventing misalignment during installation.

[0061] In some embodiments, both the first seal 500 and the second seal 600 are made of polytetrafluoroethylene.

[0062] It should be noted that polytetrafluoroethylene (PTFE) is a relatively soft material. Therefore, when pressure is applied to the first seal 500 and the second seal 600, they are prone to deformation, resulting in a tighter fit between the first seal 500 and the cylinder 100 and the first cover 200, and a tighter fit between the second seal 600 and the cylinder 100 and the second cover 300. Furthermore, PTFE is easy to process and manufacture.

[0063] On the other hand, this application also provides a water treatment device (not shown in the figure), which includes a reverse osmosis membrane module as described above, with multiple reverse osmosis membrane modules arranged side by side, and adjacent reverse osmosis membrane modules connected to each other through a first through hole 220 and a second through hole 320; the water treatment device also includes an output pipe (not shown in the figure), with the outlet 230 of the multiple reverse osmosis membrane modules connected to the output pipe.

[0064] It should be noted that this water treatment device also includes a frame with multiple slots for installing reverse osmosis membrane modules. Multiple reverse osmosis membrane modules are installed in their corresponding slots, arranged side-by-side. Adjacent reverse osmosis membrane modules are connected according to a preset water flow direction. For example, one reverse osmosis membrane module is designated as the first reverse osmosis membrane module, with its second through-hole 320 serving as the inlet. The first through-hole 220 of the first reverse osmosis membrane module faces to the right. Another reverse osmosis membrane module installed to the right of the first reverse osmosis membrane module is designated as the second reverse osmosis membrane module, with its first through-hole 220 facing to the left. The first through-holes 220 of the two reverse osmosis membrane modules are connected by a connecting pipe. The water to be treated injected through the second through-hole 320 of the first reverse osmosis membrane module is treated to produce concentrate. The concentrate enters the second reverse osmosis membrane module through the first through-holes 220 of both reverse osmosis membrane modules for further treatment, and is finally discharged through the second through-hole 320 of the second reverse osmosis membrane module.

[0065] In some embodiments, each reverse osmosis membrane module may have multiple first through-holes 220 and second through-holes 320. By adjusting the orientation of the first through-holes 220 and second through-holes 320 of multiple reverse osmosis membrane modules, multiple reverse osmosis membrane modules can be connected using a small space. One reverse osmosis membrane module can be connected to multiple other reverse osmosis membrane modules to improve water treatment efficiency. The outlets of multiple reverse osmosis membrane modules are connected through an output pipe, which can discharge the purified liquid treated by multiple reverse osmosis membrane modules in a unified manner for easy collection and storage.

[0066] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A reverse osmosis membrane module, characterized in that, include: The cylindrical body includes a cylindrical body and a first protrusion, wherein the first protrusion is provided at both ends of the cylindrical body; A reverse osmosis membrane is disposed inside the cylindrical body. The reverse osmosis membrane includes a central tube and a water flow channel, with the water flow channel surrounding the outside of the central tube. The first cover includes a first cover body, a first through hole, a water outlet, and a second protrusion. The first cover body is disposed on one end of the cylindrical body, and the end of the cylindrical body closest to the first cover body is referred to as the first end. The first through hole and the water outlet are both opened in the first cover body. The first through hole is connected to the water flow channel, and the water outlet is connected to the central pipe. The second protrusion is disposed on the edge of the first cover body near the cylindrical body. The second cover includes a second cover body, a second through hole, and a third protrusion. The second cover body is disposed on the other end of the cylindrical body, and the end of the cylindrical body near the second cover body is referred to as the second end. The second through hole is opened in the second cover body and communicates with the water flow channel. The third protrusion is disposed on the edge of the second cover body near the cylindrical body. Multiple snap-fit ​​connectors are provided and detachably disposed at both ends of the cylindrical body. The second protrusion and the first protrusion at the first end are connected by a portion of the snap-fit ​​connectors. The third protrusion and the first protrusion at the second end are connected by another portion of the snap-fit ​​connectors.

2. The reverse osmosis membrane module according to claim 1, characterized in that, The first through hole is formed on the side wall of the first cover body, and the water outlet is formed on the bottom surface of the first cover body.

3. The reverse osmosis membrane module according to claim 1, characterized in that, The second cover also includes a handle, which is located on the bottom surface of the second cover body; the second through hole is opened on the side wall of the second cover body.

4. The reverse osmosis membrane module according to claim 1, characterized in that, The snap-fit ​​component includes two annular clamps, referred to as the first clamp and the second clamp, which are respectively located at both ends of the cylindrical body; the second protrusion and the first protrusion located at the first end abut against the first clamp, and the third protrusion and the first protrusion located at the second end abut against the second clamp.

5. The reverse osmosis membrane module according to claim 4, characterized in that, Both the inner walls of the first clamp and the inner walls of the second clamp are provided with limiting grooves; the side of the second protrusion away from the first protrusion abuts against the inner side wall of the limiting groove of the first clamp, and the side of the first protrusion at the first end away from the second protrusion abuts against the inner side wall of the limiting groove of the first clamp. The side of the third protrusion away from the first protrusion abuts against the inner wall of the limiting groove of the second clamp, and the side of the first protrusion at the second end away from the third protrusion abuts against the inner wall of the limiting groove of the second clamp.

6. The reverse osmosis membrane module according to claim 5, characterized in that, Both the first clamp and the second clamp include a snap-fit ​​mechanism and two snap rings. The snap rings are semi-circular, and one end of each snap ring is hinged together. The other end of each snap ring is connected through the snap-fit ​​mechanism. The limiting groove is formed on the inner wall of the snap ring.

7. The reverse osmosis membrane module according to claim 6, characterized in that, Each of the two retaining rings has a retaining groove at one end that is far from each other. The retaining mechanism includes a retaining rod, one end of which is hinged to the retaining groove of one of the retaining rings, and the other end of which is engaged in the retaining groove of the other retaining ring.

8. The reverse osmosis membrane module according to claim 1, characterized in that, It also includes a first seal and a second seal. The first seal is sandwiched between the cylinder and the first cover. The second protrusion is connected to the first protrusion located at the first end through the first seal. The second seal is sandwiched between the cylinder and the second cover. The third protrusion is connected to the first protrusion located at the second end through the second seal.

9. The reverse osmosis membrane module according to claim 8, characterized in that, Both the first and second seals are made of polytetrafluoroethylene (PTFE).

10. A water treatment device, characterized in that, The device includes a reverse osmosis membrane module as described in any one of claims 1-9, wherein a plurality of the reverse osmosis membrane modules are arranged side by side, and adjacent reverse osmosis membrane modules are connected to each other through a first through hole and a second through hole; the water treatment device further includes an output pipe, and the outlet of the plurality of reverse osmosis membrane modules is connected to the output pipe.

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