Multistage ultrafiltration membrane water treatment device

Abstract

The utility model discloses a multi-stage ultrafiltration membrane water treatment device, belongs to the technical field of ultrafiltration membranes, and mainly solves the problems that a water treatment mechanism in the prior art only has an ultrafiltration membrane filtering function, is single in filtering effect and poor in single-stage filtering efficiency during use, and the water treatment device is difficult to disassemble independently and is not convenient to use. The water treatment device comprises a primary filter cartridge, a purification cartridge and a membrane shell, the purification cartridge is arranged at one end of the primary filter cartridge, the membrane shell is arranged at one end of the purification cartridge, a quick release assembly is arranged on one side of the primary filter cartridge, a secondary filter screen and a primary filter screen are arranged in the primary filter cartridge, and the primary filter screen is fixed to one side of the secondary filter screen. An activated carbon filter element is arranged in the purification cylinder, and an ultrafiltration membrane filter element is arranged in the membrane shell.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrafiltration membranes, and more specifically, to a multi-stage ultrafiltration membrane water treatment device. Background Art

[0002] An ultrafiltration membrane is an artificial permeable membrane used in the ultrafiltration process. Ultrafiltration technology can intercept particles the size of colloids in water, while water and low-molecular-weight solutes are allowed to pass through the membrane. Ultrafiltration technology can separate substances with different characteristics in a solution, effectively isolate colloidal substances and fine suspended particles, etc., and has a certain removal effect on substances such as microorganisms and bacteria in water, effectively purifying the water quality. Compared with traditional water treatment technologies, it has many advantages. Nowadays, ultrafiltration technology has been involved in many fields such as food processing, dairy industry, beverage industry, pharmaceutical industry, resource recovery, and environmental engineering.

[0003] However, in the prior art, there are various types of water treatment devices. For example, the utility model patent CN212039892U relates to a hollow fiber ultrafiltration membrane water treatment mechanism. This utility model is provided with a columnar outer shell in a hollow state. Inside the outer shell, there are two symmetrically distributed filter plates. One of the filter plates located at the water inlet end of the outer shell has a water inlet on its surface. At the bottom of the outer shell, there are two symmetrically distributed concentrated liquid outlets. A hollow fiber layer is provided between the two filter plates. This utility model can, while filtering water and discharging the concentrated liquid, through the power of water, drive a scraper to scrape the inner wall of the outer shell clean, reduce the attachments on the inner wall, and improve the service life of the equipment.

[0004] Although this ultrafiltration membrane water treatment mechanism can scrape the inner wall of the ultrafiltration membrane outer shell to remove the attachments on the inner wall, during use, this water treatment mechanism only has the ultrafiltration membrane filtering function, the filtering effect is single, the single-stage filtering efficiency is not good, and the water treatment device is difficult to be independently disassembled, and the use is not convenient enough. In order to avoid the occurrence of this phenomenon, it is very necessary to design a multi-stage ultrafiltration membrane water treatment device. Summary of the Utility Model

[0005] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. In this part, as well as in the abstract and the title of the utility model of this application, some simplifications or omissions may be made to avoid obscuring the purpose of this part, the abstract of the specification, and the title of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] To achieve the above purpose, the utility model provides a multi-stage ultrafiltration membrane water treatment device, which is achieved by the following specific technical means:

[0007] A multi-stage ultrafiltration membrane water treatment device, comprising a primary filter cartridge, a purification cartridge and a membrane housing. One end of the primary filter cartridge is provided with a purification cartridge, one end of the purification cartridge is provided with a membrane housing, a quick-release component is arranged on one side of the primary filter cartridge, a secondary filter screen and a primary filter screen are arranged inside the primary filter cartridge, and the primary filter screen is fixed on one side of the secondary filter screen. An activated carbon filter element is arranged inside the purification cartridge, and an ultrafiltration membrane filter element is arranged inside the membrane housing.

[0008] Preferably, the quick-release component includes a mounting sleeve, a fixing frame, an assembly sleeve, a connecting piece and a connecting bolt. The mounting sleeve is fixed on the inner surface of the primary filter cartridge, the fixing frame is threadedly connected inside the mounting sleeve, the secondary filter screen and the primary filter screen are fixed in the fixing frame. A plurality of connecting bolts penetrate through one end of the membrane housing, and the ultrafiltration membrane filter element can be fixedly installed through the connecting bolts. Two adjusting plates are fixedly connected to one side surface of the fixing frame.

[0009] Preferably, the inner wall of the purification cartridge is fixedly connected with an assembly sleeve, the connecting piece is threadedly installed inside the assembly sleeve, and the connecting piece is fixedly connected with the activated carbon filter element. A second sealing ring is arranged at one end of the connecting piece, and the second sealing ring is located in the assembly sleeve.

[0010] Preferably, a threaded ring is fixedly connected to one end of the purification cartridge away from the membrane housing, and the threaded ring is threadedly connected with the primary filter cartridge. A first sealing ring is arranged at one end of the threaded ring, and the first sealing ring is located inside the primary filter cartridge.

[0011] Preferably, connecting flanges are coaxially arranged on the outer surfaces of the purification cartridge and the membrane housing. A plurality of fastening bolts penetrate through one side surface of the connecting flange at equal intervals, and fastening nuts are threadedly connected to the surfaces of the fastening bolts. A sealing ring and a sealing groove are respectively arranged at one end of the purification cartridge and the membrane housing close to each other, and the sealing ring can be embedded into the matching sealing groove.

[0012] Preferably, a connecting pipe is embedded at one end of the purification cartridge, and one end of the connecting pipe extends into the membrane housing. A fixing ring is arranged at one end of the ultrafiltration membrane filter element, one end of the connecting pipe is embedded in the fixing ring, and a rubber ring is arranged on the inner surface of the fixing ring, and the rubber ring is in close contact with the connecting pipe.

[0013] Preferably, a water seepage pipe is embedded on the outer surface of the membrane housing, a water inlet pipe is arranged at one end of the primary filter cartridge away from the purification cartridge, and a sewage discharge pipe is arranged at one end of the ultrafiltration membrane filter element away from the fixing ring.

[0014] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0015] 1. When treating sewage, first, through the settings of the secondary filter screen and the primary filter screen, large particle impurities contained in the sewage are preliminarily filtered and intercepted. Then, an activated carbon filter element is used to adsorb harmful substances in the sewage. Finally, the ultrafiltration membrane technology is utilized to filter tiny substances contained in the sewage, thereby completing the multi-stage filtration operation, with high filtration efficiency and improved filtration effect of the device.

[0016] 2. To disassemble the device independently, remove the fixed frame from the installation sleeve and disassemble the secondary filter screen and the primary filter screen. Subsequently, screw the activated carbon filter element to remove the connecting piece from the assembly sleeve and disassemble the activated carbon filter element. Finally, loosen multiple connecting bolts and take out the ultrafiltration membrane filter element from the membrane housing, thereby disassembling the ultrafiltration membrane filter element, enabling the independent disassembly of the multi-stage filtration structure and facilitating removal for cleaning. Brief Description of the Drawings

[0017] The drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0018] Figure 1 is the front view sectional schematic diagram of the present utility model;

[0019] Figure 2 is the structural schematic diagram inside the primary filter cartridge;

[0020] Figure 3 is the partial structural schematic diagram of the present utility model;

[0021] Figure 4 is the structural schematic diagram inside the membrane housing;

[0022] Figure 5 is the structural schematic diagram inside the purification cylinder;

[0023] Figure 6 is the structural schematic diagram of the installation sleeve, fixed frame, secondary filter screen and adjusting plate.

[0024] In the figures: 1, primary filter cartridge; 2, purification cylinder; 3, membrane housing; 4, installation sleeve; 5, fixed frame; 6, secondary filter screen; 7, primary filter screen; 8, assembly sleeve; 9, connecting piece; 10, activated carbon filter element; 11, connecting bolt; 12, ultrafiltration membrane filter element; 13, threaded ring; 14, first sealing ring; 15, connecting flange; 16, sealing ring; 17, sealing groove; 18, fastening bolt; 19, fastening nut; 20, adjusting plate; 21, second sealing ring; 22, connecting pipe; 23, fixing ring; 24, rubber ring; 25, water seepage pipe; 26, water inlet pipe; 27, sewage discharge pipe. Detailed Description of the Preferred Embodiments

[0025] In order to make the above-mentioned objects, features and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings of the specification.

[0026] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0027] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present utility model. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an individual or alternative embodiment that is mutually exclusive with other embodiments. The present utility model provides the following embodiments.

[0028] As Figure 2 、 Figure 3 and Figure 4 shown, it is a schematic structural diagram of a multi-stage ultrafiltration membrane water treatment device in this embodiment. The water treatment device in this embodiment includes a primary filter cartridge 1, a purification cartridge 2 and a membrane housing 3. One end of the primary filter cartridge 1 is provided with a purification cartridge 2, and one end of the purification cartridge 2 is provided with a membrane housing 3. Inside the primary filter cartridge 1, there are a secondary filter screen 6 and a primary filter screen 7, and the primary filter screen 7 is fixed to one side of the secondary filter screen 6. Inside the purification cartridge 2, there is an activated carbon filter element 10. Inside the membrane housing 3, there is an ultrafiltration membrane filter element 12. When sewage enters the device for treatment, first, through the settings of the secondary filter screen 6 and the primary filter screen 7, large particle impurities contained in the sewage are preliminarily filtered and intercepted. Then, the activated carbon filter element 10 is used to adsorb harmful substances in the sewage. Finally, through the installation of the ultrafiltration membrane filter element 12, the ultrafiltration membrane technology is used to filter the tiny substances contained in the sewage, thereby completing the multi-stage filtration operation, with high filtration efficiency and at the same time improving the filtration effect of the device.

[0029] In this embodiment, an installation sleeve 4 is fixed to the inner surface of the primary filter cartridge 1. A fixing frame 5 is threadedly connected inside the installation sleeve 4. A secondary filter screen 6 and a primary filter screen 7 are fixed in the fixing frame 5. A plurality of connecting bolts 11 penetrate through one end of the membrane housing 3, and the ultrafiltration membrane filter element 12 can be fixedly installed through the connecting bolts 11. Two adjusting plates 20 are fixedly connected to one side surface of the fixing frame 5. An assembly sleeve 8 is fixedly connected to the inner wall of the purification cylinder 2. A connecting member 9 is threadedly installed inside the assembly sleeve 8, and the connecting member 9 is fixedly connected to the activated carbon filter element 10. A second sealing ring 21 is arranged at one end of the connecting member 9, and the second sealing ring 21 is located in the assembly sleeve 8. When the water treatment device needs to be cleaned or replaced, the primary filter cartridge 1, the purification cylinder 2, and the membrane housing 3 of the multi-stage filtration need to be independently disassembled. First, use the adjusting plate 20 to remove the fixing frame 5 from the installation sleeve 4, and remove the secondary filter screen 6 and the primary filter screen 7; then rotate the activated carbon filter element 10 to remove the connecting member 9 from the assembly sleeve 8 and remove the activated carbon filter element 10; finally, loosen the plurality of connecting bolts 11 and take out the ultrafiltration membrane filter element 12 from the membrane housing 3, thereby removing the ultrafiltration membrane filter element 12, so that the multi-stage filtration structure can be independently disassembled, which is convenient for cleaning after being taken off.

[0030] It should be noted that the installation sleeve 4, the fixing frame 5, the assembly sleeve 8, the connecting member 9, and the connecting bolts 11 in this embodiment form a quick-disassembly component, and the quick-disassembly component is used to independently disassemble the multi-stage filtration structure.

[0031] As Figure 5 shown, connecting flanges 15 are coaxially arranged on the outer surfaces of the purification cylinder 2 and the membrane housing 3 in this embodiment. A plurality of fastening bolts 18 penetrate through one side surface of the connecting flange 15 at equal intervals. Threaded nuts 19 are threadedly connected to the surfaces of the fastening bolts 18. Sealing rings 16 and sealing grooves 17 are respectively arranged at one ends of the purification cylinder 2 and the membrane housing 3 that are close to each other, and the sealing ring 16 can be embedded in the matching sealing groove 17. In order to remove the purification cylinder 2, loosen the plurality of fastening bolts 18 and separate the two connecting flanges 15, and the independent disassembly of the purification cylinder 2 can be completed.

[0032] As Figure 2 and Figure 5 shown, a threaded ring 13 is fixedly connected to one end of the purification cylinder 2 away from the membrane housing 3 in this embodiment, and the threaded ring 13 is threadedly connected to the primary filter cartridge 1. A first sealing ring 14 is arranged at one end of the threaded ring 13, and the first sealing ring 14 is located inside the primary filter cartridge 1. In order to remove the primary filter cartridge 1, rotate the purification cylinder 2 and withdraw the threaded ring 13 from the primary filter cartridge 1, and the independent disassembly of the primary filter cartridge 1 can be completed.

[0033] As Figure 4As shown in the figure, in this embodiment, a connecting pipe 22 is embedded at one end of the purification cylinder 2, and one end of the connecting pipe 22 extends into the membrane housing 3. A fixing ring 23 is provided at one end of the ultrafiltration membrane filter element 12. One end of the connecting pipe 22 is embedded in the fixing ring 23. A rubber ring 24 is provided on the inner surface of the fixing ring 23, and the rubber ring 24 is in close contact with the connecting pipe 22.

[0034] As Figure 1 shown in the figure, in this embodiment, a water seepage pipe 25 is embedded on the outer surface of the membrane housing 3. A water inlet pipe 26 is provided at one end of the primary filter cylinder 1 away from the purification cylinder 2. A sewage discharge pipe 27 is provided at one end of the ultrafiltration membrane filter element 12 away from the fixing ring 23.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage ultrafiltration membrane water treatment device, comprising a primary filter cartridge (1), a purification cartridge (2) and a membrane shell (3), wherein one end of the primary filter cartridge (1) is provided with a purification cartridge (2), and one end of the purification cartridge (2) is provided with a membrane shell (3), characterized in that: A quick-release assembly is provided on one side of the primary filter cartridge (1), a secondary filter screen (6) and a primary filter screen (7) are provided inside the primary filter cartridge (1), and the primary filter screen (7) is fixed to one side of the secondary filter screen (6), an activated carbon filter element (10) is provided inside the purification cartridge (2), and an ultrafiltration membrane filter element (12) is provided inside the membrane shell (3).

2. A multi-stage ultrafiltration membrane water treatment device according to claim 1, characterized in that: The quick-release assembly comprises a mounting sleeve (4), a fixing frame (5), an assembly sleeve (8), a connecting piece (9) and a connecting bolt (11); the inner surface of the primary filter cartridge (1) is fixed with the mounting sleeve (4); the internal thread of the mounting sleeve (4) is connected to the fixing frame (5); the secondary filter screen (6) and the primary filter screen (7) are fixed in the fixing frame (5); a plurality of connecting bolts (11) are provided through one end of the membrane shell (3); the ultrafiltration membrane filter element (12) can be fixedly installed by means of the connecting bolts (11); and two adjustment plates (20) are fixedly connected to one side surface of the fixing frame (5).

3. A multi-stage ultrafiltration membrane water treatment device according to claim 1, characterized in that: An assembly sleeve (8) is fixedly connected to the inner wall of the purification cylinder (2); a connecting piece (9) is installed on the internal thread of the assembly sleeve (8); the connecting piece (9) is fixedly connected to the activated carbon filter element (10); a second sealing ring (21) is provided at one end of the connecting piece (9), and the second sealing ring (21) is located in the assembly sleeve (8).

4. A multi-stage ultrafiltration membrane water treatment device according to claim 1, characterized in that: A threaded ring (13) is fixedly connected to one end of the purification cartridge (2) away from the membrane shell (3), and the threaded ring (13) is threadedly connected to the primary filter cartridge (1). A first sealing ring (14) is provided at one end of the threaded ring (13), and the first sealing ring (14) is located inside the primary filter cartridge (1).

5. A multi-stage ultrafiltration membrane water treatment device according to claim 1, characterized in that: The outer surfaces of the purification cylinder (2) and the membrane shell (3) are coaxially provided with a connecting flange (15), and a plurality of fastening bolts (18) are equidistantly provided through the surface of one side of the connecting flange (15), and the surfaces of the fastening bolts (18) are threadedly connected with fastening nuts (19), and the ends of the purification cylinder (2) and the membrane shell (3) close to each other are respectively provided with a sealing ring (16) and a sealing groove (17), and the sealing ring (16) can be embedded in the matching sealing groove (17).

6. A multi-stage ultrafiltration membrane water treatment device according to claim 1, characterized in that: A connecting tube (22) is embedded in one end of the purification cartridge (2), and one end of the connecting tube (22) extends into the membrane shell (3). A fixing ring (23) is provided at one end of the ultrafiltration membrane filter element (12), and one end of the connecting tube (22) is embedded in the fixing ring (23). A rubber ring (24) is provided on the inner surface of the fixing ring (23), and the rubber ring (24) and the connecting tube (22) are in close contact with each other.

7. A multi-stage ultrafiltration membrane water treatment device according to claim 1, characterized in that: A water seepage pipe (25) is embedded in the outer surface of the membrane shell (3), a water inlet pipe (26) is provided at one end of the primary filter cartridge (1) away from the purification cartridge (2), and a sewage discharge pipe (27) is provided at one end of the ultrafiltration membrane filter element (12) away from the fixing ring (23).

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