Reverse osmosis membrane filter element and reverse osmosis water purification device

Abstract

The utility model provides a reverse osmosis membrane filter element and a reverse osmosis water purification device, and relates to the technical field of reverse osmosis water purification, the reverse osmosis membrane filter element comprises a protective filter screen, an outer-layer protective cage is arranged in the protective filter screen, an inner-layer protective cage is arranged in the outer-layer protective cage, and an inner-layer protective cage is arranged in the inner-layer protective cage. And transmission gear sets are fixedly mounted at the top ends of the outer-layer protection cage and the inner-layer protection cage. The utility model has the advantages that the two differential rotating protection structures are arranged between the filtering structure and the reverse osmosis structure, and the two protection structures rotate to generate a speed difference to form a shearing effect between the two protection structures, so that water and impurities entering the space between the protection structures are sheared and crushed, the volume of the impurities in the water is reduced, and the water quality is improved. The abrasion of impurities in the water to the reverse osmosis structure after passing through the filtering structure is reduced, and the water purification efficiency of the water purification device can be further improved and the water purification effect can be enhanced by utilizing the stirring of the differential rotation protection structure to the water.

Description

Technical Field

[0001] The utility model relates to the technical field of reverse osmosis water purification, in particular to a reverse osmosis membrane filter element and a reverse osmosis water purification device. Background Art

[0002] With the improvement of quality of life and health requirements, people have higher and higher requirements for water quality, especially in terms of taste and hygiene indicators. Water purification equipment can remove particulate impurities, colloids, and residual chlorine in tap water through a reasonable and efficient pretreatment system, and then use reverse osmosis technology to remove bacteria, viruses and other microorganisms and most heavy metal ions that are harmful to the human body. The water purified by the water purification equipment can be directly used for the production of food, dairy products, alcohol and beverages. Reverse osmosis membrane filter elements can filter impurities such as organic matter, colloids, bacteria, viruses, etc. in raw water, especially with extremely high filtration efficiency for impurities such as inorganic salts and heavy metal ions. Therefore, reverse osmosis membrane filter elements constitute the core components of water purification equipment.

[0003] CN202321353935.9 introduces a reverse osmosis membrane filter element and a reverse osmosis water purification device. Through the linkage between the concentrated water channel, the inner reverse osmosis membrane, the water collecting pipe, the first cavity, the upper fixed block, the outer reverse osmosis membrane, the membrane support layer and the reverse osmosis membrane filter element set in the water purification cylinder, when the raw water enters the water purification cylinder, the raw water can be filtered for the first depth. Through the linkage between the second filter net, the first filter net and the second cavity, the purified water after the first filtration can be filtered for the second time to avoid the occurrence of poor filtering and water purification effects. However, the device is not convenient for handling purified debris during the water purification process, and the residual debris is easy to cause wear on the reverse osmosis membrane core, affecting the water purification effect. Utility Model Content

[0004] Therefore, the purpose of the present invention is to provide a reverse osmosis membrane filter element and a reverse osmosis water purification device to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a reverse osmosis membrane filter element and a reverse osmosis water purification device, including a water purification cylinder, a fixed protective cover is fixedly installed on the top of the water purification cylinder, a water inlet hole is arranged inside the fixed protective cover, a protective filter is arranged below the water inlet hole, an outer protective cage is arranged inside the protective filter, an inner protective cage is arranged inside the outer protective cage, a transmission gear set is fixedly installed on the top of the outer protective cage and the inner protective cage, a drive motor is fixedly installed inside the transmission gear set, a reverse osmosis membrane group is arranged inside the inner protective cage, a reverse osmosis membrane filter element is arranged inside the reverse osmosis membrane group, and a drainage hole is arranged inside the reverse osmosis membrane filter element.

[0006] Preferably, any of the above schemes is that a water purification chamber is provided inside the water purification cylinder, and a support seat adapted to the driving motor is provided in the middle of the fixed protective cover.

[0007] Preferably, any of the above schemes is that the protective filter is fixedly installed inside the water purification cylinder, and a filter cavity is provided between the outer wall of the protective filter and the inner wall of the water purification cylinder.

[0008] The above technical solution is adopted: water is introduced into the water purification cylinder through the water inlet hole, and the water is filtered for the first time through the protective filter net, which blocks large-volume debris in the water inside the filter cavity, thereby reducing the damage of large-volume debris in the water to the reverse osmosis membrane core.

[0009] Preferably, any of the above schemes is that the outer protective cage and the inner protective cage are both rotatably connected to the inside of the water purification cylinder, and the inner parts of the outer protective cage and the inner protective cage are provided with fixing grooves adapted to the transmission gear set.

[0010] The above technical solution is adopted: the outer protective cage and the inner protective cage perform the second and third blocking on the water body filtered by the protective filter, and a protective cavity is formed between the outer protective cage and the inner protective cage, and the outer protective cage and the inner protective cage are controlled to rotate relative to each other, and the speed difference generated by the rotation of the outer protective cage and the inner protective cage is used to form a shear force to crush the debris between the outer protective cage and the inner protective cage, thereby reducing the volume of the debris.

[0011] Preferably, from any of the above schemes, the transmission gear set includes a first transmission gear, a first drive gear, a second drive gear and a second transmission gear, the first transmission gear is fixedly mounted inside the outer protective cage, the first transmission gear meshes with the first drive gear, the first drive gear and the drive motor are fixedly mounted, one end of the drive motor is fixedly mounted with the second drive gear, the second drive gear meshes with the second transmission gear, and the second transmission gear is fixedly mounted inside the inner protective cage.

[0012] The above technical solution is adopted: the size of the first transmission gear is larger than that of the second transmission gear, the size of the first drive gear is larger than that of the second drive gear, the transmission ratio between the first transmission gear and the first drive gear is different from the transmission ratio between the second drive gear and the second transmission gear, and the transmission ratio difference between the two sets of gears causes a difference in the rotational speeds of the outer protective cage and the inner protective cage.

[0013] Preferably, in any of the above schemes, the driving motor is fixedly installed inside the fixed protective cover, and the reverse osmosis membrane group is fixedly installed inside the water purification cylinder.

[0014] Preferably, any of the above schemes is that the reverse osmosis membrane filter element is fixedly installed inside the water purification cylinder, and the drainage hole is opened at the bottom of the water purification cylinder.

[0015] The above technical solution is adopted: the driving motor is supported by a fixed protective cover, and the output power of the driving motor is used to drive the first transmission gear and the second transmission gear to rotate. The water passing through the outer protective cage and the inner protective cage passes through the reverse osmosis membrane group and then enters the reverse osmosis membrane filter element. After the water is purified by the reverse osmosis membrane filter element, the water is discharged through the drainage hole.

[0016] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0017] 1. Two differentially rotating protective structures are arranged between the filtration structure and the reverse osmosis structure. The speed difference generated by the rotation of the two protective structures forms a shearing effect between the two protective structures, and the water and debris entering between the protective structures are sheared and crushed, thereby reducing the volume of debris inside the water body and reducing the wear of the reverse osmosis structure caused by debris in the water body after passing through the filtration structure. The stirring of the water body by the differentially rotating protective structure can further improve the purification efficiency of the water purification device for the water body and enhance the water purification effect.

[0018] 2. Setting up a two-layer protective cage structure increases the number of filtering protection layers inside the water purification device, which is beneficial to reducing debris in the water body and improving the water purification effect.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 It is a structural schematic diagram according to an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the outer protective cage according to an embodiment of the utility model;

[0023] Figure 3 It is a schematic diagram of the exploded structure of the transmission gear set according to an embodiment of the utility model;

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of a water purification cartridge according to an embodiment of the utility model;

[0025] Among them: 1-water purification cylinder, 2-fixed protective cover, 3-water inlet, 4-protective filter, 5-outer protective cage, 6-inner protective cage, 7-transmission gear set, 71-first transmission gear, 72-first drive gear, 73-second drive gear, 74-second transmission gear, 8-drive motor, 9-reverse osmosis membrane group, 10-reverse osmosis membrane filter element, 11-drain hole. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0027] like Figure 1-4 As shown, a reverse osmosis membrane filter element and a reverse osmosis water purification device according to an embodiment of the utility model include a water purification cylinder 1, a fixed protective cover 2 is fixedly installed on the top of the water purification cylinder 1, a water inlet hole 3 is arranged inside the fixed protective cover 2, a protective filter screen 4 is arranged below the water inlet hole 3, an outer protective cage 5 is arranged inside the protective filter screen 4, an inner protective cage 6 is arranged inside the outer protective cage 5, a transmission gear set 7 is fixedly installed on the top of the outer protective cage 5 and the inner protective cage 6, a driving motor 8 is fixedly installed inside the transmission gear set 7, a reverse osmosis membrane group 9 is arranged inside the inner protective cage 6, a reverse osmosis membrane filter element 10 is arranged inside the reverse osmosis membrane group 9, and a drainage hole 11 is arranged inside the reverse osmosis membrane filter element 10.

[0028] Preferably, any of the above schemes has a water purification chamber provided inside the water purification cylinder 1 , and a support seat adapted to the driving motor 8 is provided in the middle of the fixed protective cover 2 .

[0029] Preferably, any of the above schemes is that the protective filter 4 is fixedly installed inside the water purification cylinder 1 , and a filter cavity is provided between the outer wall of the protective filter 4 and the inner wall of the water purification cylinder 1 .

[0030] The above technical solution is adopted: water is introduced into the interior of the water purification cylinder 1 through the water inlet hole 3, and the water is filtered for the first time through the protective filter screen 4, blocking large-volume debris in the water inside the filter cavity, reducing the damage of large-volume debris in the water to the reverse osmosis membrane core.

[0031] Preferably, any of the above schemes is that the outer protective cage 5 and the inner protective cage 6 are both rotatably connected to the inside of the water purification cylinder 1, and the outer protective cage 5 and the inner protective cage 6 are both provided with fixing grooves adapted to the transmission gear set 7.

[0032] The above technical solution is adopted: the outer protective cage 5 and the inner protective cage 6 perform the second and third blocking on the water body filtered by the protective filter net 4, and a protective cavity is formed between the outer protective cage 5 and the inner protective cage 6, and the outer protective cage 5 and the inner protective cage 6 are controlled to rotate relative to each other, and the speed difference generated by the rotation of the outer protective cage 5 and the inner protective cage 6 is used to form a shear force to crush the debris between the outer protective cage 5 and the inner protective cage 6, thereby reducing the volume of the debris.

[0033] Preferably, from any of the above schemes, the transmission gear set 7 includes a first transmission gear 71, a first drive gear 72, a second drive gear 73 and a second transmission gear 74, the first transmission gear 71 is fixedly mounted inside the outer protective cage 5, the first transmission gear 71 meshes with the first drive gear 72, the first drive gear 72 and the drive motor 8 are fixedly mounted, one end of the drive motor 8 is fixedly mounted with the second drive gear 73, the second drive gear 73 is meshed with the second transmission gear 74, and the second transmission gear 74 is fixedly mounted inside the inner protective cage 6.

[0034] The above technical solution is adopted: the size of the first transmission gear 71 is larger than that of the second transmission gear 74, the size of the first drive gear 72 is larger than that of the second drive gear 73, the transmission ratio between the first transmission gear 71 and the first drive gear 72 is different from the transmission ratio between the second drive gear 73 and the second transmission gear 74, and the transmission ratio difference between the two sets of gears causes a difference in the rotational speed of the outer protective cage 5 and the inner protective cage 6.

[0035] Preferably, in any of the above solutions, the driving motor 8 is fixedly installed inside the fixed protective cover 2 , and the reverse osmosis membrane group 9 is fixedly installed inside the water purification cylinder 1 .

[0036] Preferably, any of the above schemes is that the reverse osmosis membrane filter element 10 is fixedly installed inside the water purification cylinder 1 , and the drainage hole 11 is opened at the bottom of the water purification cylinder 1 .

[0037] The above technical solution is adopted: the driving motor 8 is supported by fixing the protective cover 2, and the driving motor 8 outputs power to drive the first transmission gear 71 and the second transmission gear 74 to rotate. The water passing through the outer protective cage 5 and the inner protective cage 6 passes through the reverse osmosis membrane group 9 and then enters the reverse osmosis membrane filter element 10. After the water is purified by the reverse osmosis membrane filter element 10, the water is discharged through the drainage hole 11.

[0038] The utility model provides a reverse osmosis membrane filter element and a reverse osmosis water purification device, and the working principle is as follows:

[0039] Water is introduced into the water purification cylinder 1 through the drainage hole, and the water flows into the outer protective cage 5 and the inner protective cage 6 through the protective filter net 4. The driving motor 8 is controlled to drive the transmission gear set 7 to drive the outer protective cage 5 and the inner protective cage 6 to rotate respectively.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] 1. Two differentially rotating protective structures are arranged between the filtration structure and the reverse osmosis structure. The speed difference generated by the rotation of the two protective structures forms a shearing effect between the two protective structures, and the water and debris entering between the protective structures are sheared and crushed, thereby reducing the volume of debris inside the water body and reducing the wear of the reverse osmosis structure caused by debris in the water body after passing through the filtration structure. The stirring of the water body by the differentially rotating protective structure can further improve the purification efficiency of the water purification device for the water body and enhance the water purification effect.

[0042] 2. Setting up a two-layer protective cage structure increases the number of filtering protection layers inside the water purification device, which is beneficial to reducing debris in the water body and improving the water purification effect.

Claims

1. A reverse osmosis membrane filter element and a reverse osmosis water purification device, comprising a water purification cartridge (1), a fixed protective cover (2) being fixedly mounted on the top of the water purification cartridge (1), a water inlet hole (3) being arranged inside the fixed protective cover (2), characterized in that: A protective filter (4) is arranged below the water inlet (3); an outer protective cage (5) is arranged inside the protective filter (4); an inner protective cage (6) is arranged inside the outer protective cage (5); a transmission gear set (7) is fixedly installed at the top of the outer protective cage (5) and the inner protective cage (6); a driving motor (8) is fixedly installed inside the transmission gear set (7); a reverse osmosis membrane group (9) is arranged inside the reverse osmosis membrane group (9); a reverse osmosis membrane filter element (10) is arranged inside the reverse osmosis membrane filter element (10); a drainage hole (11) is arranged inside the reverse osmosis membrane filter element (10).

2. A reverse osmosis membrane filter element and a reverse osmosis water purification device as claimed in claim 1, characterized in that: A water purification chamber is provided inside the water purification cylinder (1), and a support seat adapted to the driving motor (8) is provided in the middle of the fixed protective cover (2).

3. A reverse osmosis membrane filter element and a reverse osmosis water purification device as claimed in claim 2, characterized in that: The protective filter screen (4) is fixedly installed inside the water purification cylinder (1), and a filter cavity is provided between the outer wall of the protective filter screen (4) and the inner wall of the water purification cylinder (1).

4. A reverse osmosis membrane filter element and a reverse osmosis water purification device as claimed in claim 3, characterized in that: The outer protective cage (5) and the inner protective cage (6) are both rotatably connected to the inside of the water purification cylinder (1), and the inside of the outer protective cage (5) and the inner protective cage (6) are both provided with fixing grooves that are compatible with the transmission gear set (7).

5. A reverse osmosis membrane filter element and a reverse osmosis water purification device as claimed in claim 4, characterized in that: The transmission gear set (7) comprises a first transmission gear (71), a first drive gear (72), a second drive gear (73) and a second transmission gear (74); the first transmission gear (71) is fixedly mounted inside the outer protective cage (5); the first transmission gear (71) meshes with the first drive gear (72); the first drive gear (72) and the drive motor (8) are fixedly mounted; one end of the drive motor (8) is fixedly mounted with the second drive gear (73); the second drive gear (73) meshes with the second transmission gear (74); and the second transmission gear (74) is fixedly mounted inside the inner protective cage (6).

6. A reverse osmosis membrane filter element and a reverse osmosis water purification device as claimed in claim 5, characterized in that: The driving motor (8) is fixedly installed inside the fixed protective cover (2), and the reverse osmosis membrane group (9) is fixedly installed inside the water purification cylinder (1).

7. A reverse osmosis membrane filter element and a reverse osmosis water purification device as claimed in claim 6, characterized in that: The reverse osmosis membrane filter element (10) is fixedly installed inside the water purification cylinder (1), and the drainage hole (11) is opened at the bottom of the water purification cylinder (1).

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