RO (Reverse Osmosis) membrane water treatment equipment

Abstract

The utility model relates to RO (Reverse Osmosis) membrane water treatment equipment which is characterized by comprising a filter element, a shell sleeved outside the filter element, a water inlet pipeline, a purified water pipeline and a discharge pipeline, the water inlet pipeline, the purified water pipeline and the discharge pipeline are arranged on one side of the circumferential surface of the shell; the outer edges of the two ends of the filter element are connected with the inner wall of the shell in a sealed mode through sealing rings. The internal space of the shell is divided into a first space, a second space and a third space by the two sealing rings; the two ends of the shell are provided with sealing covers used for sealing the shell. Through the arrangement of the shell, the sealing covers, the filter element and the side pipes, and through the matching relation between the filter element and the sealing covers, the two ends of the filter element can be communicated with the side pipes arranged at the two ends through the sealing covers, and then sewage can enter the shell through the first side pipe and then enters the shell through the second side pipe; filtered sewage flows through the sealing cover at the other end and the third side pipe and then is discharged.

Description

Technical Field

[0001] This utility model relates to the technical field of RO membrane water treatment equipment, and specifically to an RO membrane water treatment device. Background Technology

[0002] RO water treatment system, also known as reverse osmosis water treatment system, is a membrane separation technology developed in the 1960s. Its principle is that raw water passes through a reverse osmosis membrane under high pressure, and the solvent in the water diffuses from high concentration to low concentration, thereby achieving the purpose of separation, purification and concentration. Because it is the opposite of the osmosis direction in nature, it is called reverse osmosis.

[0003] The core component of an RO water treatment system is the RO membrane water treatment equipment. This equipment typically includes a housing, an RO membrane filter element (hereinafter referred to as the filter element), and delivery pipes. The filter element is installed inside the housing, and the housing is connected to the delivery pipes. Traditionally, delivery pipes are installed at both ends of the housing, and these pipes connect the housing to the filter element. When the equipment is working, wastewater enters from one end of the housing, is filtered by the filter element, and then exits from the other end. The filtered water is discharged from the outlet on the side of the housing. This traditional design makes it inconvenient to replace the filter element due to the obstruction of the delivery pipes at both ends. Therefore, an RO membrane water treatment equipment is proposed to solve the above-mentioned problems. Utility Model Content

[0004] Based on the above description, this utility model provides an RO membrane water treatment device to solve the problem that it is inconvenient to replace the filter element in existing RO membrane water treatment devices.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An RO membrane water treatment device, characterized in that it includes: a filter element, a shell sleeved on the filter element, an inlet pipe, a pure water pipe and an outlet pipe;

[0006] The inlet pipe, the purified water pipe, and the outlet pipe are located on one side of the circumference of the outer shell; the outer edges of both ends of the filter element are sealed to the inner wall of the outer shell through sealing rings; the two sealing rings divide the internal space of the outer shell into a first space, a second space, and a third space, wherein the first space is connected to the inlet pipe through a connector, the second space is connected to the purified water pipe through a one-way valve, and the third space is connected to the outlet pipe through a one-way valve; the two ends of the outer shell are provided with sealing caps for sealing the outer shell.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the outer casing is provided with side tubes on its side, the side tubes including a first side tube and two second side tubes, the first side tube being disposed between the two second side tubes.

[0009] Furthermore, the two second side pipes are connected to the outer casing via a one-way valve and a connector, respectively, and the first side pipe is connected to the outer casing via a one-way valve. Liquid can only flow from the outer casing to the one-way valve, and cannot flow in the opposite direction.

[0010] Furthermore, the sealing cover includes a cover body disposed at both ends of the outer shell and extending into the interior of the outer shell. There is a gap between the portion of the cover body extending into the interior of the outer shell and the outer shell. A compression ring is sleeved on the outside of the cover body. A first connecting hole and a second connecting hole are provided on the outer circumferential surface of the cover body. The first connecting hole and the second connecting hole are respectively disposed on both sides of the compression ring. The cover body can be connected to the second side tube through the first connecting hole and the second connecting hole.

[0011] Furthermore, each of the two covers has an inner cylinder on its opposite side, and the outer surface of the inner cylinder has a third connecting hole. The filter element is disposed between the two inner cylinders, and the water inlet of the filter element is connected to the first connecting hole and the second connecting hole through the third connecting hole.

[0012] Furthermore, the outer diameters at both ends of the extrusion ring are smaller than the outer diameter in the middle of the extrusion ring, and the maximum outer diameter of the extrusion ring is the same as the inner diameter of the outer shell.

[0013] Furthermore, the connector includes a connecting cylinder that communicates with the second side tube. A valve core is provided inside the connecting cylinder. A limit block and an mounting cylinder are sequentially provided on the side of the valve core away from the outer shell. A spring is provided between the valve core and the limit block. A pressing rod extending into the outer shell is provided at the end of the valve core near the outer shell.

[0014] Furthermore, the limiting block includes a partition disposed between the connecting cylinder and the mounting cylinder, and the partition is provided with a guide post and a water inlet on the side facing the outer shell, and the connecting cylinder and the mounting cylinder are interconnected through the water inlet.

[0015] Furthermore, the valve core includes a valve core body, and a guide groove is provided at one end of the valve core body near the limiting block. The guide post extends into the interior of the guide groove, and the connecting cylinder can be blocked by the valve core body.

[0016] Furthermore, the extrusion rod includes a main rod body, one end of which is provided with a connecting rod, which is connected to the valve core. The end of the main rod body away from the valve core passes through the connecting cylinder and the first side tube in sequence and then contacts the circumferential surface of the middle part of the extrusion ring. A gasket is provided between the main rod body and the valve core, and the gasket is sleeved on the outside of the connecting rod.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0018] 1. This utility model, by setting up an outer shell, a sealing cover, a filter element, and side pipes, allows the two ends of the filter element to be interconnected with the side pipes set at both ends through the sealing cover, so that sewage can enter the interior of the outer shell through the first side pipe, flow through the first connecting hole, the second connecting hole, and the third connecting hole, and then enter the interior of the filter element. The filtered sewage flows through the sealing cover and the third side pipe at the other end and is discharged, so that the space at both ends of the outer shell is open, making it easy to remove the filter element;

[0019] 2. By designing the connecting cylinder, mounting cylinder, valve core, limit block, and spring, the water inlet pipe is connected to the first side pipe through the connecting cylinder and mounting cylinder after the sealing cover is installed. When the sealing cover is removed, the valve core is tightly fitted to the inner wall of the connecting cylinder under the action of the spring force, thereby achieving the effect of sealing the connecting cylinder and stopping the sewage in the water inlet pipe from entering the interior of the outer shell. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of an RO membrane water treatment device provided in an embodiment of this utility model;

[0021] Figure 2 for Figure 1 Structural sectional view;

[0022] Figure 3 for Figure 2 Another structural diagram from another perspective;

[0023] Figure 4 for Figure 3 A magnified view of a portion of region A in the middle;

[0024] Figure 5 This is a schematic diagram of the structure of the sealing cover in an embodiment of the present utility model;

[0025] Figure 6 for Figure 5 Structural sectional view;

[0026] Figure 7 for Figure 6 Another structural diagram from another perspective;

[0027] Figure 8 This is a schematic diagram of the valve core structure in an embodiment of this utility model;

[0028] Figure 9 This is a schematic diagram of the limiting block in an embodiment of the present invention;

[0029] Figure 10 This is a schematic diagram of the extrusion rod in an embodiment of the present invention;

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Outer shell; 2. Sealing cap; 21. Cap body; 22. Threaded sleeve; 23. Compression ring; 24. First connecting hole; 25. Second connecting hole; 26. Inner cylinder; 27. Third connecting hole; 3. Filter element; 4. Check valve; 5. Connecting cylinder; 6. Mounting cylinder; 7. Water inlet pipe; 8. Valve core; 81. Valve core body; 82. Guide groove; 9. Limiting block; 91. Guide post; 92. Partition plate; 93. Water inlet hole; 10. Gasket; 11. Compression rod; 111. Main rod body; 112. Threaded rod; 12. Spring; 13. Side tube; 131. First side tube; 132. Second side tube; 133. Third side tube; 14. Pure water pipe; 15. Discharge pipe. Detailed Implementation

[0032] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0034] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0035] Example 1

[0036] Please see Figure 1 , Figure 2An RO membrane water treatment device includes: a filter element 3, a housing 1 sleeved on the filter element 3, an inlet pipe 7, a pure water pipe 14, and an outlet pipe 15.

[0037] The inlet pipe 7, the pure water pipe 14, and the outlet pipe 15 are located on one side of the circumferential surface of the outer shell 1;

[0038] The outer edges of both ends of the filter element 3 are sealed to the inner wall of the outer shell 1 through sealing rings;

[0039] Two sealing rings divide the internal space of the outer shell 1 into a first space, a second space and a third space. The first space is connected to the water inlet pipe 7 through a connector, the second space is connected to the pure water pipe 14 through a one-way valve 4, and the third space is connected to the discharge pipe 15 through a one-way valve 4.

[0040] The outer casing 1 has sealing caps at both ends for sealing the outer casing;

[0041] The outer casing 1 has a side tube 13 on its side. The side tube 13 includes a first side tube 131 and two second side tubes 132. The first side tube 131 is disposed between the two second side tubes 132. The two second side tubes 132 are respectively connected to the outer casing 1 through a one-way valve 4 and a connector. The first side tube 131 is connected to the outer casing 1 through the one-way valve 4. Liquid can only flow from the outer casing 1 to the one-way valve 4, and cannot flow in the opposite direction.

[0042] Based on the above, filter element 3 is existing technology. The existing filter element 3 also divides the space inside the outer shell 1 into three parts through a sealing ring. The first space and the third space are used for the inlet and outlet of sewage, respectively, and the second space is used for the outlet of pure water, i.e., the filtered water.

[0043] The outer casing 1 is connected to the inlet pipe 7, the pure water pipe 14, and the outlet pipe 15 via the first side pipe 131, the second side pipe 132, and the third side pipe 133, respectively. When the sewage enters the interior of the outer casing 1 through the inlet pipe 7 and the first side pipe 131, it flows into the water inlet of the filter element 3. The pure water filtered by the filter element 3 flows into the space in the middle and flows into the pure water pipe 14 through the one-way valve 4 and is discharged. The filtered sewage is discharged from the water inlet at the other end of the filter element 3 and flows into the interior of the outlet pipe 15 through the third side pipe 133 and the one-way valve 4. The above three pipes and side pipes are all located on the side of the outer casing 1, so that no pipes are set at both ends of the outer casing 1, thus providing sufficient space for the filter element 3 to be pulled out.

[0044] The one-way valve 4 prevents the discharged pure water and sewage from flowing back, so there is no need to worry about pure water and sewage entering the interior of the outer shell 1 when the filter element 3 is pulled out.

[0045] Example 2

[0046] Based on Example 1, such as Figures 5-7 As shown, the sealing cover 2 includes a cover body 21 disposed at both ends of the outer shell 1 and extending into the interior of the outer shell 1. There is a gap between the portion of the cover body 21 extending into the interior of the outer shell 1 and the outer shell 1. A compression ring 23 is sleeved on the outside of the cover body 21. A first connecting hole 24 and a second connecting hole 25 are provided on the outer circumferential surface of the cover body 21. The first connecting hole 24 and the second connecting hole 25 are respectively disposed on both sides of the compression ring 23. The cover body 21 can be connected to the second side tube 132 through the first connecting hole 24.

[0047] Each of the two covers 21 has an inner cylinder 26 on one side opposite to the other. The outer surface of the inner cylinder 26 has a third connecting hole 27. The filter element 3 is disposed between the two inner cylinders 26. The water inlet of the filter element 3 is connected to the first connecting hole 24 and the second connecting hole 25 through the third connecting hole 27.

[0048] The outer diameters at both ends of the compression ring 23 are smaller than the outer diameter in the middle of the compression ring 23, and the maximum outer diameter of the compression ring 23 is the same as the inner diameter of the outer shell 1;

[0049] Based on the above, the sealing cap 2 serves to seal the outer shell 1, so that both ends of the outer shell 1 are in a closed state, preventing liquid from flowing from both ends. The sealing cap 2 and the outer shell 1 can be sealed by setting a sealing ring.

[0050] The first connecting hole 24 and the second connecting hole 25 are provided so that the closed cover 2 can communicate with the side pipes 13 located at both ends of the outer shell 1. The inner cylinder 26 is designed to cooperate with the structure of the filter element 3. On the one hand, after the water inlet of the filter element 3 extends into the inner cylinder 26, the filter element 3 is fixed in position under the action of the inner cylinders 26 at both ends. On the other hand, sewage can flow into the interior of the filter element 3 after passing through the third connecting hole 27 and the inner cylinder 26. Conversely, the sewage filtered at the other end of the filter element 3 can be discharged after passing through the third connecting hole 27 and the inner cylinder 26.

[0051] The sealing cover 2 not only serves to seal the outer shell 1, but also works in conjunction with the outer shell 1, the side tube 3, and the three pipes located on the side of the outer shell 1 in Embodiment 1, enabling the device to operate normally.

[0052] Example 3

[0053] Based on Example 2, such as Figure 3 , Figure 4 , Figures 8-10As shown, the connector includes a connecting cylinder 5 that communicates with the second side tube 132. A valve core 8 is provided inside the connecting cylinder 5. A limit block 9 and an installation cylinder 6 are sequentially provided on the side of the valve core 8 away from the outer shell 1. A spring 12 is provided between the valve core 8 and the limit block 9. A pressing rod 11 extending into the outer shell 1 is provided at the end of the valve core 8 near the outer shell 1.

[0054] The limiting block 9 includes a partition 92 disposed between the connecting cylinder 5 and the mounting cylinder 6. The partition 92 is provided with a guide post 91 and a water inlet 93 on the side facing the outer shell 1. The connecting cylinder 5 and the mounting cylinder 6 are interconnected through the water inlet 93.

[0055] The valve core 8 includes a valve core body 81. A guide groove 82 is provided at one end of the valve core body 81 near the limiting block 9. The guide post 91 extends into the interior of the guide groove 82. The connecting cylinder 5 can be blocked by the valve core body 81.

[0056] The extrusion rod 11 includes a main rod body 111, one end of which is provided with a connecting rod 112. The connecting rod 112 is connected to the valve core 8. The end of the main rod body 111 away from the valve core 8 passes through the connecting cylinder 5 and the first side tube 131 in sequence and then contacts the circumferential surface of the middle part of the extrusion ring 23. A gasket 10 is provided between the main rod body 111 and the valve core 8. The gasket 10 is sleeved on the outside of the connecting rod 112.

[0057] Based on the above, the cooperation between the limit block 9, the valve core 8 and the spring 12 acts as a check valve. When sewage enters the interior of the mounting cylinder 6 through the inlet pipe 7, the sewage pushes the valve core 8 upward. At this time, the valve core 8 is tightly fitted with the inner wall of the connecting cylinder 5, achieving a sealing effect. At this time, sewage cannot enter the interior of the first side pipe 131 through the connecting cylinder 5.

[0058] The compression rod 11 is designed such that after the sealing cover 2 is connected to the outer shell 1, the compression ring 23 pushes the compression rod 11 downward, and the compression rod 11 drives the valve core 8 downward, causing the valve core 8 to separate from the inner wall of the connecting cylinder 5, thereby connecting the mounting cylinder 5 and the first side pipe 131, allowing sewage to enter the interior of the first side pipe 131. During this process, the spring 12 is in a compressed state. When the sealing cover 2 is separated from the outer shell 1, the valve core 8 resets under the action of the spring force, causing the valve core 8 to close the connecting cylinder 5 again.

[0059] The water inlet 93 in the above process allows sewage to flow into the interior of the connecting cylinder 5 after passing through the limiting block 9.

[0060] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 RO membrane water treatment apparatus, characterized by, Include: Filter core (3), the shell (1) is set outside the filter core (3), water inlet pipeline (7), pure water pipeline (14) and discharge pipeline (15); The water inlet pipeline (7), pure water pipeline (14) and discharge pipeline (15) are arranged on one side of the circumferential surface of the shell (1); The outer edge of both ends of the filter core (3) is sealingly connected with the inner wall of the shell (1) through a sealing ring; Two sealing rings divide the internal space of the shell (1) into a first space, a second space and a third space, wherein the first space is in communication with the water inlet pipeline (7) through a connecting piece, the second space is in communication with the pure water pipeline (14) through a one-way valve (4), and the third space is in communication with the discharge pipeline (15) through a one-way valve (4); Both ends of the shell (1) are provided with a closure cover for sealing the shell.

2. The RO membrane water treatment apparatus according to claim 1, characterized by The side surface of the shell (1) is provided with a side pipe (13), the side pipe (13) comprises a first side pipe (131) and two second side pipes (132), and the first side pipe (131) is arranged between the two second side pipes (132).

3. The RO membrane water treatment apparatus according to claim 2, characterized by The two second side pipes (132) are respectively in communication with the shell (1) through a one-way valve (4) and a connecting piece, the first side pipe (131) is in communication with the shell (1) through a one-way valve (4), and liquid can only flow from the shell (1) to the one-way valve (4), and vice versa.

4. The RO membrane water treatment apparatus according to claim 3, characterized by The closure cover (2) comprises a cover body (21) arranged at both ends of the shell (1) and extending into the shell (1), a gap is formed between the part of the cover body (21) extending into the shell (1) and the shell (1), an extrusion ring (23) is arranged on the outer surface of the cover body (21), a first communication hole (24) and a second communication hole (25) are arranged on the outer circumferential surface of the cover body (21), the first communication hole (24) and the second communication hole (25) are arranged on both sides of the extrusion ring (23), and the cover body (21) can be in communication with the second side pipe (132) through the first communication hole (24) and the first communication hole (24).

5. The RO membrane water treatment apparatus according to claim 4, characterized by Both sides of the cover body (21) are provided with an inner cylinder (26), the outer surface of the inner cylinder (26) is provided with a third communication hole (27), the filter core (3) is arranged between the two inner cylinders (26), and the water inlet of the filter core (3) is in communication with the first communication hole (24) and the second communication hole (25) through the third communication hole (27).

6. The RO membrane water treatment apparatus according to claim 4, wherein The outer diameter of both ends of the extrusion ring (23) is smaller than the outer diameter of the middle of the extrusion ring (23), and the maximum outer diameter of the extrusion ring (23) is the same as the inner diameter of the shell (1).

7. The RO membrane water treatment apparatus according to claim 6, characterized by The connecting piece comprises a connecting cylinder (5) in communication with the second side pipe (132), a valve core (8) is arranged in the connecting cylinder (5), a limiting block (9) and a mounting cylinder (6) are sequentially arranged on the side of the valve core (8) away from the shell (1), a spring (12) is arranged between the valve core (8) and the limiting block (9), and an extrusion rod (11) extending into the shell (1) is arranged on the end of the valve core (8) close to the shell (1).

8. The RO membrane water treatment apparatus according to claim 7, characterized by The limiting block (9) comprises a partition plate (92) arranged between the connecting cylinder (5) and the mounting cylinder (6), and the partition plate (92) is provided with a guide column (91) and a water delivery hole (93) on the side facing the shell (1), and the connecting cylinder (5) and the mounting cylinder (6) are communicated with each other through the water delivery hole (93).

9. The RO membrane water treatment apparatus according to claim 8, characterized by The valve core (8) comprises a valve core body (81), and the valve core body (81) is provided with a guide groove (82) at one end close to the limiting block (9), the guide column (91) extends into the guide groove (82), and the connecting cylinder (5) can be blocked by the valve core body (81).

10. The RO membrane water treatment apparatus according to claim 9, wherein The extrusion rod (11) comprises a main rod body (111), one end of the main rod body (111) is provided with a connecting rod (112), the connecting rod (112) is connected with the valve core (8), one end of the main rod body (111) away from the valve core (8) penetrates the connecting cylinder (5) and the first side pipe (131) in sequence and then contacts with the circumferential surface of the middle part of the extrusion ring (23), a gasket (10) is arranged between the main rod body (111) and the valve core (8), and the gasket (10) is sleeved to the outside of the connecting rod (112).

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