Improved ultrafiltration type drinking water purification device

Abstract

The utility model discloses an improved ultrafiltration type drinking water purification device, which relates to the technical field of water purifiers, and comprises a shell, a front filter area and a rear filter area, the front filter area is arranged on one side in the shell, a detachable PP cotton filter element and an activated carbon filter element are arranged in the front filter area, at least two ultrafiltration membrane filter element assemblies are arranged in the rear filter area, and the ultrafiltration membrane filter element assemblies are arranged in the shell. A leading-in pipe and a circulating pipe are arranged on the front filtering area, and the water inlet pipe of any ultrafiltration membrane filter element assembly is communicated with the circulating pipe. According to the utility model, the pre-filtering area is arranged for pre-filtering and can be quickly disassembled and replaced, and the pre-filtering area is matched to effectively reduce the burden of the post-filtering area, so that an ultrafiltration membrane in the post-filtering area is ensured to effectively filter fine impurities without being influenced by coarse impurities, and the filtering effect is improved; the drinking water purification device can selectively use the ultrafiltration membrane filter element assembly, and a water inlet pipe and a water outlet pipe on the ultrafiltration membrane filter element assembly are respectively provided with a one-way structure, so that the flow direction of water during water purification is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of water purifiers, and more specifically to an improved ultrafiltration drinking water purification device. Background Art

[0002] Ultrafiltration machine is a device that uses ultrafiltration technology to purify water. It is a microporous filtration membrane with consistent pore size specifications and a rated pore size of about 0.01 microns. Ultrafiltration is a screening process that uses membrane separation technology. It uses the pressure difference on both sides of the membrane as the driving force and the ultrafiltration membrane as the filtration medium. Under a certain pressure, when the raw liquid flows through the membrane surface, the many tiny micropores densely distributed on the surface of the ultrafiltration membrane only allow water and small molecules to pass through and become permeate.

[0003] When the ultrafiltration drinking water purification device in the prior art is set as a multi-filtration structure, the filtration sequence is designed one level at a time according to the structure, and the flow sequence cannot be changed, which will reduce the use effect to a certain extent. Utility Model Content

[0004] The purpose of the utility model is to provide an improved ultrafiltration drinking water purification device to solve the above technical problems.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0006] An improved ultrafiltration drinking water purification device comprises a shell, a pre-filtration zone, and a post-filtration zone. The pre-filtration zone is arranged on one side of the shell, and a detachable PP cotton filter element and an activated carbon filter element are arranged in the pre-filtration zone. At least two ultrafiltration membrane filter element assemblies are arranged in the post-filtration zone. A plurality of water inlet pipes and water outlet pipes are arranged at the side ends of the ultrafiltration membrane filter element assemblies. A first unidirectional structure is arranged on the water inlet pipe, and the flow direction of the first unidirectional structure is from outside to inside. A second unidirectional structure is arranged on the water outlet pipe, and the flow direction of the second unidirectional structure is from inside to outside. An introduction pipe and a circulation pipe are arranged on the pre-filtration zone, and the water inlet pipe and the circulation pipe of any ultrafiltration membrane filter element assembly are connected.

[0007] The utility model performs pre-filtration by setting up a pre-filtration area, and can be quickly disassembled and replaced. The PP cotton filter element can filter coarse impurities, and the activated carbon filter element can adsorb and filter to remove certain odors. The cooperation effectively reduces the burden of the post-filtration area, ensures that the ultrafiltration membrane in the post-filtration area effectively filters fine impurities, and improves the filtering effect. The drinking water purification device can use a plurality of ultrafiltration membrane filter element components in combination, or can select any one of them for independent use. The water inlet pipe and the water outlet pipe on the ultrafiltration membrane filter element component are both provided with a one-way structure to ensure the flow direction of water during water purification.

[0008] A preferred technical solution: the outlet pipe of any ultrafiltration membrane filter element assembly is connected to the inlet pipe of another ultrafiltration membrane filter element assembly through a transfer assembly, and the transfer assembly is used to connect the independent ultrafiltration membrane filter element assemblies.

[0009] A better technical solution: The PP cotton filter element and the activated carbon filter element are installed in the pre-filter area through a mounting frame, and one end of the mounting frame limits the vertical displacement of the PP cotton filter element and the activated carbon filter element through a limit plate. The limit plate assists in installation and positioning, which facilitates quick installation.

[0010] A preferred technical solution: The adapter assembly includes a first tube body adapted to the water outlet pipe, a second tube body adapted to the water inlet pipe, and an adapter, and the first tube body is connected to the second tube body through the adapter.

[0011] A preferred technical solution: The ultrafiltration membrane filter element assembly includes an assembly shell, a transparent cover plate, and a top cover. The transparent cover plate is installed on the side of the assembly shell through a sealing strip, and the transparent cover plate is fixed on the assembly shell by screws, and the top cover is threadedly connected to the assembly shell. The transparent cover plate is convenient for observing whether there are too many impurities on the surface of the ultrafiltration membrane, and is convenient for quick judgment and then unscrewing the top cover for cleaning.

[0012] A preferred technical solution: a clamping plate is provided at the side end of the top cover, the clamping plate is hingedly mounted on the side end of the top cover through a mounting rod, and the outer side of the clamping plate is limited by a nut, which is threadedly connected to the mounting rod. The inner side of the clamping plate limits the displacement of the transparent cover plate, thereby ensuring that the transparent cover plate is fully mounted on the assembly shell.

[0013] A better technical solution: a frame plate is set in the post-filtration area, and a mounting port larger than the ultrafiltration membrane filter element assembly is set on the frame plate to facilitate the installation of the ultrafiltration membrane filter element assembly, and an openable top cover plate is set on the top of the shell to facilitate the later removal of the ultrafiltration membrane filter element assembly in the vertical direction.

[0014] A better technical solution: a buffer layer is set at the side end of the installation port, and the buffer layer is made of rubber material. When the ultrafiltration membrane filter element assembly is installed into the installation port, the ultrafiltration membrane filter element assembly is efficiently fixed to the frame plate by utilizing the certain deformation space of the rubber material itself.

[0015] The beneficial effects of the utility model are as follows:

[0016] The utility model performs pre-filtration by setting a pre-filtering area, and can be quickly disassembled and replaced. The pre-filtering area cooperates to effectively reduce the burden of the post-filtering area, ensuring that the ultrafiltration membrane in the post-filtering area effectively filters fine impurities without being affected by coarse impurities, thereby improving the filtering effect; the drinking water purification device can choose to use an ultrafiltration membrane filter element assembly, and the water inlet pipe and the water outlet pipe on the ultrafiltration membrane filter element assembly are both provided with a one-way structure to ensure the flow direction of water during water purification. The overall structure is simple and has high use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0019] Figure 3 for Figure 1 A partial enlarged view of point B in the middle.

[0020] Figure numerals: 1. Shell; 2. Pre-filter area; 3. Post-filter area; 4. PP cotton filter element; 5. Activated carbon filter element; 6. Ultrafiltration membrane filter element assembly; 7. Water inlet pipe; 8. Water outlet pipe; 9. First one-way structure; 10. Second one-way structure; 11. Inlet pipe; 12. Flow pipe; 13. Adapter assembly; 14. Mounting frame; 15. Limit plate; 16. First tube body; 17. Second tube body; 18. Adapter; 19. Assembly shell; 20. Transparent cover; 21. Top cover; 22. Sealing strip; 24. Card; 25. Mounting rod; 26. Nut; 27. Rack plate; 28. Mounting port; 29. ​​Buffer layer; 30. Blocking seat; 31. Blocking ball; 32. Inner spring; 33. Through-hole seat. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1

[0024] like Figures 1 to 3As shown, the present embodiment provides an improved ultrafiltration drinking water purification device, comprising a shell 1, a pre-filter area 2, and a post-filter area 3. The pre-filter area 2 is arranged on one side of the shell 1, and a detachable PP cotton filter element 4 and an activated carbon filter element 5 are arranged in the pre-filter area 2. At least two ultrafiltration membrane filter element assemblies 6 are arranged in the post-filter area 3. A plurality of water inlet pipes 7 and a water outlet pipe 8 are arranged at the side end of the ultrafiltration membrane filter element assembly 6. A first unidirectional structure 9 is arranged on the water inlet pipe 7, and the flow direction of the first unidirectional structure 9 is from outside to inside. A second unidirectional structure 10 is arranged on the water outlet pipe 8, and the flow direction of the second unidirectional structure 10 is from inside to outside. An inlet pipe 11 and a flow pipe 12 are arranged on the pre-filter area 2, and the water inlet pipe 7 of any ultrafiltration membrane filter element assembly 6 is connected with the flow pipe 12.

[0025] Furthermore, the outlet pipe 8 of any one ultrafiltration membrane filter element assembly 6 is connected to the inlet pipe 7 of another ultrafiltration membrane filter element assembly 6 through the adapter assembly 13, and the adapter assembly 13 is used to connect the ultrafiltration membrane filter element assemblies 6 that are independent of each other for use.

[0026] Furthermore, the PP cotton filter element 4 and the activated carbon filter element 5 are mounted on the pre-filter area 2 via a mounting frame 14, and one end of the mounting frame 14 limits the vertical displacement of the PP cotton filter element 4 and the activated carbon filter element 5 via a limiting plate 15. The limiting plate 15 assists in installation and positioning, facilitating rapid installation.

[0027] Furthermore, the adapter assembly 13 includes a first tube body 16 adapted to the water outlet pipe 8 , a second tube body 17 adapted to the water inlet pipe 7 , and an adapter 18 , and the first tube body 16 is connected to the second tube body 17 via the adapter 18 .

[0028] Furthermore, the ultrafiltration membrane filter element assembly 6 includes an assembly shell 19, a transparent cover plate 20, and a top cover 21. The transparent cover plate 20 is installed on the side of the assembly shell 19 through a sealing strip 22, and the transparent cover plate 20 is installed on the assembly shell 19 by screw locking, and the top cover 21 is threadedly connected to the assembly shell 19. The transparent cover plate 20 is convenient for observing whether there are too many impurities on the surface of the ultrafiltration membrane, and is convenient for quick judgment and then unscrewing the top cover 21 for cleaning.

[0029] Furthermore, a clamping plate 24 is provided at the side end of the top cover 21, and the clamping plate 24 is hingedly mounted on the side end of the top cover 21 through a mounting rod 25, and the outer side of the clamping plate 24 is limited by a nut 26, and the nut 26 is threadedly connected to the mounting rod 25. The inner side of the clamping plate 24 limits the displacement of the transparent cover plate 20, thereby ensuring that the transparent cover plate 20 is fully mounted on the assembly shell 19.

[0030] Furthermore, a frame plate 27 is provided in the post-filtration area 3, and a mounting port 28 larger than the ultrafiltration membrane filter element assembly 6 is provided on the frame plate 27 to facilitate the installation of the ultrafiltration membrane filter element assembly 6. An openable top cover 21 is provided at the top of the shell 1 to facilitate the removal of the ultrafiltration membrane filter element assembly 6 in the vertical direction at a later time.

[0031] Furthermore, a buffer layer 29 is provided at the side end of the mounting port 28. The buffer layer 29 is made of rubber material. When the ultrafiltration membrane filter element assembly 6 is installed into the mounting port 28, the ultrafiltration membrane filter element assembly 6 is efficiently fixed on the frame plate 27 by utilizing the certain deformation space of the rubber material itself.

[0032] by Figure 1 Taking the improved ultrafiltration drinking water purification device shown in as an example, water enters the pre-filtration area 2 from the inlet pipe 11, is transferred to the post-filtration area 3 through the flow pipe 12, enters the ultrafiltration membrane filter element assembly on the left through the water inlet pipe 7, flows out of the ultrafiltration membrane filter element assembly on the left from the outlet pipe position, flows to the ultrafiltration membrane filter element assembly 6 on the right through the adapter assembly 13, and finally outputs the purified water of the entire purification device through the outlet pipe 8 of the ultrafiltration membrane filter element assembly 6 on the right. Figure 1 The output end of the entire purification device is not shown.

[0033] The one-way structure in the utility model includes a blocking ball 31, a blocking seat 30, an inner spring 32, and a through-hole seat 33. One end of the inner spring 32 is connected to the blocking ball 31, and the other end is connected to the through-hole seat 33. The blocking seat 30 is provided with a hole adapted to the structure of the blocking ball 31. When the blocking ball 31 is pushed by water, the inner spring 32 is compressed. At this time, the hole opens, and the water flows to the through-hole seat 33 and continues to flow forward through the opening on the through-hole seat 33.

Claims

1. An improved ultrafiltration drinking water purification device, characterized in that: It includes a shell, a pre-filter area, and a post-filter area. The pre-filter area is arranged on one side of the shell. A detachable PP cotton filter element and an activated carbon filter element are arranged in the pre-filter area. At least two ultrafiltration membrane filter element assemblies are arranged in the post-filter area. A plurality of water inlet pipes and water outlet pipes are arranged at the side ends of the ultrafiltration membrane filter element assemblies. A first unidirectional structure is arranged on the water inlet pipe, and the flow direction of the first unidirectional structure is from outside to inside. A second unidirectional structure is arranged on the water outlet pipe, and the flow direction of the second unidirectional structure is from inside to outside. An inlet pipe and a flow pipe are arranged on the pre-filter area, and the water inlet pipe and the flow pipe of any one of the ultrafiltration membrane filter element assemblies are connected.

2. The improved ultrafiltration drinking water purification device according to claim 1, characterized in that: The water outlet pipe of any one of the ultrafiltration membrane filter element assemblies is connected to the water inlet pipe of another ultrafiltration membrane filter element assembly through a switching assembly.

3. The improved ultrafiltration drinking water purification device according to claim 1, characterized in that: The PP cotton filter element and the activated carbon filter element are mounted in the pre-filter area via a mounting frame, and one end of the mounting frame limits the vertical displacement distance of the PP cotton filter element and the activated carbon filter element via a limiting plate.

4. The improved ultrafiltration drinking water purification device according to claim 2, characterized in that: The adapter assembly includes a first tube body adapted to the water outlet pipe, a second tube body adapted to the water inlet pipe, and an adapter. The first tube body is connected to the second tube body through the adapter.

5. The improved ultrafiltration drinking water purification device according to claim 1, characterized in that: The ultrafiltration membrane filter element assembly comprises an assembly shell, a transparent cover plate and a top cover. The transparent cover plate is installed on the side of the assembly shell through a sealing strip, and the transparent cover plate is fixed on the assembly shell by screws. The top cover is threadedly connected to the assembly shell.

6. The improved ultrafiltration drinking water purification device according to claim 5, characterized in that: A clamping plate is arranged at the side end of the top cover, and the clamping plate is hingedly mounted on the side end of the top cover through a mounting rod, and the outer side of the clamping plate is limited by a nut, and the nut is threadedly connected with the mounting rod.

7. The improved ultrafiltration drinking water purification device according to claim 1, characterized in that: A frame plate is arranged in the post-filtration area, and a mounting opening larger than the ultrafiltration membrane filter element assembly is arranged on the frame plate.

8. The improved ultrafiltration drinking water purification device according to claim 7, characterized in that: A buffer layer is arranged at the side end of the installation opening.

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