Anti-clogging filter membrane module

Abstract

The utility model discloses a kind of anti-clogging filter membrane assemblies, it is related to water filtration technical field, including cylindrical filter membrane and cylindrical hard filter cartridge;The hard filter cartridge is located in filter membrane inside;Hard filter cartridge lower side and upper side are equipped with water inlet pipe and pollution collection box respectively, water inlet pipe is rotatably installed with the impeller rotating with water flow, hard filter cartridge inside is equipped with bracket, and bracket edge is equipped with the brush that is attached with hard filter cartridge inner wall;The impeller is connected with bracket through pivot;The utility model drives impeller rotation by water flow, impeller drives bracket and brush to clean the foreign matter of hard filter cartridge inside, can avoid foreign matter to be stuck on hard filter cartridge;Pollution collection box is set in hard filter cartridge lower side, can accommodate the foreign matter cleaned in large quantity, prolongs the cleaning cycle of hard filter cartridge.

Description

Technical Field

[0001] This utility model relates to the field of water filtration technology, and in particular to an anti-clogging filter membrane assembly. Background Technology

[0002] Filter membranes are used to block tiny particles in water, thus purifying it. When the water contains larger impurities or foreign objects, they adhere to the inlet surface of the filter membrane, causing localized blockage. This leads to a decrease in the membrane's flow rate. Due to the reduced flow rate, the time required to filter the same volume increases significantly, making the entire filtration process inefficient. Once the membrane is blocked, greater pressure is needed to overcome the resistance caused by the blockage, resulting in a significant increase in the pressure difference across the membrane. This, in turn, increases the system pressure and the energy consumption of the power equipment.

[0003] Patent CN219043238U discloses a filter membrane diversion support structure to prevent foreign object clogging. It uses a pre-positioned barrier screen upstream of the filter membrane to intercept larger impurities and prevent clogging. However, this structure has the following drawbacks: relying solely on water flow to clean impurities from the conical barrier screen makes it difficult to remove them when they become stuck; the space for accommodating impurities is limited, and a large amount of debris can obstruct the barrier screen, leading to frequent manual cleaning. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the prior art and provide an anti-clogging filter membrane assembly.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A clog-resistant filter membrane assembly includes a cylindrical filter membrane and a cylindrical rigid filter cartridge; the rigid filter cartridge is located inside the filter membrane; the lower and upper sides of the rigid filter cartridge are respectively provided with an inlet pipe and a sludge collection box; an impeller that rotates with the water flow is rotatably installed inside the inlet pipe; a support is provided inside the rigid filter cartridge; the edge of the support is provided with a brush that fits against the inner wall of the rigid filter cartridge; the impeller and the support are connected by a rotating shaft.

[0007] Furthermore, the rigid filter cartridge is provided with an end cap on its upper side. The end cap seals the filter membrane and the upper port of the rigid filter cartridge. The water inlet pipe is connected to the end cap and corresponds to the inner side of the rigid filter cartridge.

[0008] Furthermore, the sludge collection box seals the lower ports of the filter membrane and the rigid filter cartridge, and the sludge collection box has an opening corresponding to the inner side of the rigid filter cartridge; a cylinder frame is provided on the upper side of the edge of the sludge collection box, the cylinder frame is located outside the filter membrane, and the end cap is connected to the upper end of the cylinder frame by threads.

[0009] Furthermore, a bottom cover is threadedly connected to the lower side of the sludge collection box.

[0010] Furthermore, annular protrusions are provided on the lower side of the end cap and the upper side of the sludge collection box to limit the movement of the filter membrane and the rigid filter cartridge.

[0011] Furthermore, a circular frame is bolted to the lower center of the end cap, and a rotating shaft passes through the circular frame and is rotatably connected to it.

[0012] Furthermore, several vertical limiting plates are evenly distributed around the outer circumference of the rigid filter cartridge, and the limiting plates are located inside the filter membrane.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention uses water flow to drive the impeller to rotate, and the impeller drives the support and brush to clean foreign objects inside the hard filter cartridge, which can prevent foreign objects from getting stuck on the hard filter cartridge; a sludge collection box is set on the lower side of the hard filter cartridge, which can hold a large amount of cleaned foreign objects and extend the cleaning cycle of the hard filter cartridge. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the rigid filter cartridge structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the cleaning structure of this utility model.

[0019] Figure 5 This is a first-person exploded view of the support structure of this utility model.

[0020] Figure 6 This is a second-view exploded view of the support structure of this utility model.

[0021] Figure 7 This is a schematic diagram of the filter membrane structure of this utility model.

[0022] In the diagram: 1. Filter membrane; 2. Rigid filter cartridge; 3. Sludge collection box; 4. End cap; 5. Inlet pipe; 6. Shaft; 7. Impeller; 8. Support; 9. Brush; 10. Frame; 11. Bottom cover; 12. Limiting plate; 13. Circular frame; 14. Bolt; 15. Annular protrusion. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0024] Specific embodiments of the anti-clogging filter membrane assembly provided by this utility model:

[0025] Please see Figure 1-7 The anti-clogging filter membrane assembly includes a cylindrical filter membrane 1 and a cylindrical rigid filter cartridge 2. The rigid filter cartridge 2 is located inside the filter membrane 1, and there is a gap between the rigid filter cartridge 2 and the filter membrane 1. Water enters from the inside of the rigid filter cartridge 2 and then passes through the rigid filter cartridge 2 and the filter membrane 1 in sequence. The rigid filter cartridge 2 has filter holes, which can block impurities and foreign objects of normal size, preventing impurities and foreign objects from contacting the filter membrane 1 and causing the filter membrane 1 to clog quickly. The filter membrane 1 filters out small particles.

[0026] The rigid filter cartridge 2 is made of metal and can withstand friction cleaning without deformation. Several vertical limiting plates 12 are evenly distributed around the outer circumference of the rigid filter cartridge 2, and the limiting plates 12 are located inside the filter membrane 1.

[0027] The limiting plate 12 supports the inner side of the filter membrane 1 and can be used in conjunction with external backwashing equipment. When the filter membrane 1 is backwashed, the limiting plate 12 is evenly supported on the inner side of the filter membrane 1 to prevent the filter membrane 1 from being deformed or even damaged in a large area, thereby ensuring the structural stability of the filter membrane 1.

[0028] Both the filter membrane 1 and the rigid filter cartridge 2 are vertically arranged, with the same and corresponding heights.

[0029] The rigid filter cartridge 2 is provided with an inlet pipe 5 on its upper side. Specifically, the rigid filter cartridge 2 is provided with an end cap 4 on its upper side. The lower side of the end cap 4 is attached to the upper end of the filter membrane 1 and the rigid filter cartridge 2. A rubber sealing gasket is provided on the lower side of the end cap 4 to block the upper port of the filter membrane 1 and the rigid filter cartridge 2. The inlet pipe 5 is connected to the end cap 4 and corresponds to the inside of the rigid filter cartridge 2 to enable water to enter the inside of the rigid filter cartridge 2.

[0030] Two annular protrusions 15 are provided on the lower side of the end cap 4 to limit the position of the filter membrane 1 and the rigid filter cartridge 2. The annular protrusions 15 on the lower side of the end cap 4 stabilize the position of the filter membrane 1 and the rigid filter cartridge 2 and prevent the upper ends of the filter membrane 1 and the rigid filter cartridge 2 from being misaligned.

[0031] A sludge collection box 3 is provided on the upper side of the rigid filter cartridge 2. The sludge collection box 3 has a rubber sealing gasket layer on its upper side, which is attached to the lower end of the filter membrane 1 and the rigid filter cartridge 2 to block the lower port of the filter membrane 1 and the rigid filter cartridge 2. The sludge collection box 3 has an opening corresponding to the inner side of the rigid filter cartridge 2. Foreign objects inside the rigid filter cartridge 2 can fall into the sludge collection box 3 through the opening. The sludge collection box 3 can hold a large amount of impurities and foreign objects. The sludge collection box 3 realizes the collection of foreign objects, separates foreign objects from the rigid filter cartridge 2, reduces the impact on filtration, and will not block the rigid filter cartridge 2 after long-term use, which can extend the foreign object cleaning cycle.

[0032] The bottom cover 11 is connected to the bottom of the sludge collection box 3 by threads. The bottom cover 11 has a rubber sealing gasket layer on the inside to ensure the sealing effect during use. When the sludge collection box 3 is full, filtration stops and the bottom cover 11 is opened to clean foreign objects.

[0033] In some embodiments, the sludge collection box 3 is provided with a viewing window or is made of a transparent material to facilitate observation of the amount of foreign matter inside.

[0034] The upper side of the sludge collection box 3 is provided with annular protrusions 15 that limit the filter membrane 1 and the rigid filter cartridge 2. The upper side of the sludge collection box 3 is provided with two annular protrusions 15, which are used to limit the lower end of the filter membrane 1 and the lower end of the rigid filter cartridge 2 respectively, so as to prevent the lower end of the filter membrane 1 and the lower end of the rigid filter cartridge 2 from being misaligned.

[0035] The upper edge of the sludge collection box 3 is provided with a cylindrical frame 10. The frame 10 is located outside the filter membrane 1. The frame 10 can limit the outer side of the filter membrane 1 to prevent the filter membrane 1 from deforming.

[0036] The end cap 4 is threadedly connected to the upper end of the cylinder frame 10. The upper end of the cylinder frame 10 is provided with an annular plate, the outer side of which has external threads. The end cap 4 has internal threads that mate with it. The end cap 4 connects to the cylinder frame 10, clamping the filter membrane 1 and the rigid filter cartridge 2 between the end cap 4 and the sludge collection box 3, which is beneficial for sealing the upper and lower ports. After removing the end cap 4, the filter membrane 1 and the rigid filter cartridge 2 can be taken out, making it easy to replace the filter membrane 1.

[0037] An impeller 7, which rotates with the water flow, is rotatably installed inside the inlet pipe 5. A support 8 is provided inside the rigid filter cartridge 2. The support 8 has a rectangular frame structure, which is small in size to avoid excessive rotational resistance. A brush 9 is provided on the edge of the support 8 to fit against the inner wall of the rigid filter cartridge 2.

[0038] A rotating shaft 6 connects the impeller 7 to the support 8. A circular frame 13 is connected to the lower center of the end cover 4 by bolts 14. A rubber sealing gasket is provided on the upper side of the circular frame 13. The rotating shaft 6 passes through the middle of the circular frame 13 and is rotatably connected to the circular frame 13. The circular frame 13 supports the rotation of the rotating shaft 6 and restricts the axial movement of the rotating shaft 6. The edge of the circular frame 13 is connected to the end cover 4 by several bolts 14.

[0039] Water enters the inner side of the rigid filter cartridge 2 through the inlet pipe 5. The water flow drives the impeller 7 to rotate. The rotation of the impeller 7 causes the support 8 and the brush 9 to rotate through the rotating shaft 6. The brush 9 cleans the foreign objects adhering to the inner side of the rigid filter cartridge 2 and promotes the foreign objects to fall into the sludge collection box 3.

[0040] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A clog-resistant filter membrane assembly, comprising a cylindrical filter membrane (1) and a cylindrical rigid filter cartridge (2); characterized in that, The rigid filter cartridge (2) is located inside the filter membrane (1); the lower and upper sides of the rigid filter cartridge (2) are respectively provided with a water inlet pipe (5) and a dirt collection box (3), an impeller (7) that rotates with the water flow is rotatably installed inside the water inlet pipe (5), a support (8) is provided inside the rigid filter cartridge (2), and a brush (9) that fits against the inner wall of the rigid filter cartridge (2) is provided on the edge of the support (8); the impeller (7) and the support (8) are connected by a rotating shaft (6).

2. The anti-clogging filter membrane assembly according to claim 1, characterized in that, The rigid filter cartridge (2) is provided with an end cap (4) on its upper side. The end cap (4) seals the filter membrane (1) and the upper port of the rigid filter cartridge (2). The water inlet pipe (5) is connected to the end cap (4) and corresponds to the inner side of the rigid filter cartridge (2).

3. The anti-clogging filter membrane assembly according to claim 2, characterized in that, The sludge collection box (3) seals the lower ports of the filter membrane (1) and the rigid filter cartridge (2). The sludge collection box (3) has an opening corresponding to the inner side of the rigid filter cartridge (2). A cylinder frame (10) is provided on the upper side of the edge of the sludge collection box (3). The cylinder frame (10) is located outside the filter membrane (1). The end cap (4) is connected to the upper end of the cylinder frame (10) by a thread.

4. The anti-clogging filter membrane assembly according to claim 3, characterized in that, The bottom cover (11) is threadedly connected to the lower side of the sludge collection box (3).

5. The anti-clogging filter membrane assembly according to claim 3, characterized in that, Both the lower side of the end cap (4) and the upper side of the sludge collection box (3) are provided with annular protrusions (15) to limit the movement of the filter membrane (1) and the rigid filter cartridge (2).

6. The anti-clogging filter membrane assembly according to claim 2, characterized in that, The end cap (4) is connected to a circular frame (13) by bolts (14) on the lower side of the middle part. The rotating shaft (6) passes through the circular frame (13) and is rotatably connected to the circular frame (13).

7. The anti-clogging filter membrane assembly according to claim 1, characterized in that, The rigid filter cartridge (2) has several vertical limiting plates (12) evenly distributed around its outer circumference, and the limiting plates (12) are located inside the filter membrane (1).

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