A membrane series backflush water filtration device

Abstract

The utility model provides a membrane series connection backflush formula water filter device relates to water filtration field. This membrane series connection backflush formula water filter device, including the shell, the outside bottom of shell is provided with the water inlet, and the top center of shell is fixedly installed with the pump one of pumping water outward, and the outside ring of shell is provided with the temporary storage cavity of storing filtered water, and the output of pump one is connected and has the electromagnetic three way, and the water outlet end of electromagnetic three way is connected with temporary storage cavity and penetrates, the inside fixed mounting of shell has at least two groups of concentric inner support frame, and the outside of inner support frame is provided with the filter membrane, and the outside ring of filter membrane is sleeved with the outer support frame, this membrane series connection backflush formula water filter device, through setting up the inner support frame in the inside of filter membrane and setting up the outer support frame in the outside of filter membrane can limit filter membrane to can avoid the deformation of filter membrane in the process of back flushing.

Description

Technical Field

[0001] This utility model relates to the field of water filtration technology, specifically a membrane series backwash water filtration device. Background Technology

[0002] Multiple membrane modules are connected in series in a specific manner, allowing water to be filtered sequentially through each module. This process gradually removes pollutants of different particle sizes and properties, improving filtration efficiency and water quality. It also increases water flux to some extent, meeting the needs of large-scale water treatment.

[0003] The CN210710977U backwash water treatment device includes a main body and supporting legs. The supporting legs are fixedly connected to the bottom of the main body. A funnel area is installed at the bottom of the inner wall of the main body. A filter device is installed at the right end of the inner wall of the main body. A filter layer is installed inside the filter device. A water inlet is installed at the top of the filter device. An upward filtration chamber is installed at the left end of the filter device. Multiple evenly distributed ceramic membrane filter tubes are fixedly connected to the inner wall of the upward filtration chamber. A rotating filter plate is installed at the bottom of the upward filtration chamber. A rotating shaft seat is fixedly connected to the upper end face of the rotating filter plate. A motor is installed on the upper end face of the main body. The rotating shaft passes through the interior of the main body and is rotatably connected to the rotating shaft seat. This design solves the problems of uneven backwash filtration in existing technologies, which lead to an increase in suspended microparticles in the filter pipes over time, affecting the filtration effect and making cleaning inconvenient. Multiple layers of filter membranes with different filtration precisions are stacked concentrically. During the backwashing process, the filter membranes deform due to the lack of external support. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a membrane series backwash water filtration device, which solves the problem of membrane deformation due to lack of support during backwashing as mentioned in the background technology.

[0005] Technical solution

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a membrane series backwash water filtration device includes a shell, an inlet at the bottom outer side of the shell, a pump for pumping water outward fixedly installed at the center of the top of the shell, a temporary storage chamber for storing filtered water on the outer ring of the shell, an electromagnetic tee connected to and through the output end of the pump, one outlet end of the electromagnetic tee connected to and through the temporary storage chamber, at least two sets of concentric inner support frames fixedly installed inside the shell, a filter membrane on the outer side of the inner support frame, an outer support frame fitted around the outer ring of the filter membrane, a second pump fixedly installed at the top of the temporary storage chamber, the drain end of the second pump extending to the inner ring of the innermost inner support frame, and an openable drain outlet at the bottom of the shell.

[0007] Furthermore, the outer support frame is rotatably connected to the outer shell. The outer support frame includes an inner rotating mesh and an outer rotating mesh that can cover the gaps of the inner rotating mesh by rotation. A clamping plate pointing towards the inner rotating mesh is fixedly installed above the outer rotating mesh. A clamping post restricting the movement range of the clamping plate is provided on both sides of the clamping plate above the inner rotating mesh. A blade is fixedly installed above the outer surface of the outer rotating mesh. Two liquid inlet pipes pointing towards the blades from opposite sides are connected and pass through the outer surface of the outer shell. The two liquid inlet pipes are connected and pass through through a reversing valve. A reversing valve is provided at the outlet end of the second pump. One outlet end of the reversing valve is connected and pass through the inlet end of the reversing valve.

[0008] Furthermore, the outer ring of the inner rotating mesh is provided with an annular groove, and the inner ring of the outer rotating mesh is fixedly installed with an annular block that is snapped into the annular groove.

[0009] Furthermore, the drain outlet is located below the outer support frame, and a sealing plug is slidably connected inside the drain outlet. A sleeve is fixedly installed below the drain outlet, and the diameter of the sleeve is larger than the diameter of the sealing plug. A drain pipe is connected to and passes through the outer ring of the sleeve.

[0010] Furthermore, there are multiple sewage outlets arranged in a ring. The bottom end of the sealing plug is connected by a connecting plate. A sealing ring fitted on the outside of the connecting plate is fixedly installed at the bottom end of the outer shell. The sewage pipe is connected to the outside of the sealing ring. A control mechanism for controlling the up and down movement of the sealing ring is provided inside the sealing ring.

[0011] Furthermore, the outer shell is divided into a lower part at the bottom and an upper part ultrasonically welded to the lower part.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This membrane series backwash water filtration device can restrict the filter membrane by setting an inner support frame inside the filter membrane and an outer support frame outside the filter membrane, thereby preventing the filter membrane from deforming during the backwashing process.

[0014] 2. In this membrane series backwash water filtration device, when the gap between the outer rotating mesh and the inner rotating mesh overlaps, the outer support frame forms a relatively sealed space. At this time, backwashing is performed, and the impurities that are backwashed can be discharged through the drain port at the bottom, avoiding accumulation in the inner ring of the outer filter membrane.

[0015] 3. This membrane series backwash water filtration device has blades fixedly installed above the outer surface of the outer rotating mesh. The outer surface of the outer shell is connected to and penetrates two liquid inlet pipes that point to the blades from opposite sides. The two liquid inlet pipes are connected and penetrated through a reversing valve. The reversing valve switches the direction of the impact blades, thereby switching the forward and reverse rotation of the blades, which can change the state between the inner and outer rotating meshes. At the same time, when the outer rotating mesh is switched to overlap with the inner rotating mesh, the impact blades continue to pass through. Due to the restriction of the clamping plate and clamping column, the inner rotating mesh can be driven to scrape the deposits on the outer layer of the filter membrane. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a half-sectional view of the outer shell of this utility model;

[0018] Figure 3 This is a schematic diagram of the external support frame of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This is a schematic diagram of the connection of pump 2 in this utility model;

[0021] Figure 6 This is a schematic diagram of the sewage outlet connection of this utility model.

[0022] In the diagram: 1. Outer shell; 2. Inlet; 3. Pump 1; 4. Temporary storage chamber; 5. Electromagnetic tee; 6. Inner support frame; 7. Outer support frame; 8. Pump 2; 9. Drain outlet; 10. Filter membrane; 701. Inner rotating mesh; 702. Outer rotating mesh; 703. Clamping plate; 704. Clamping post; 705. Reversing valve; 706. Blade; 707. Inlet pipe; 708. Reversing valve 2; 709. Ring groove; 710. Ring block; 901. Sealing plug; 902. Sealing ring; 903. Drain pipe; 904. Connecting plate; 905. Control mechanism; 101. Lower part; 102. Upper part. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] See Figure 1-6A membrane series backwash water filtration device includes a housing 1, with an inlet 2 at the bottom outer side of the housing 1, and a pump 3 fixedly installed at the center of the top of the housing 1 for pumping water outwards. A temporary storage chamber 4 for storing filtered water is provided around the outer ring of the housing 1. An electromagnetic tee 5 is connected to and passes through the output end of the pump 3. One outlet end of the electromagnetic tee 5 is connected to and passes through the temporary storage chamber 4. At least two sets of concentric inner support frames 6 are fixedly installed inside the housing 1, and a filter membrane 10 is arranged on the outer side of the inner support frame 6. The filtration accuracy of the filter membrane 10 gradually increases from the outside to the inside. The outer ring of the filter membrane 10 is fitted with an outer support frame 7. A second pump 8 is fixedly installed at the top of the temporary storage chamber 4. The drain end of the second pump 8 extends to the inner ring of the innermost inner support frame 6. The bottom of the outer shell 1 is provided with an openable drain port 9. By setting the inner support frame 6 on the inside of the filter membrane 10 and the outer support frame 7 on the outside of the filter membrane 10, the filter membrane 10 can be restricted, thereby preventing the filter membrane 10 from deforming during the backflushing process.

[0025] The outer casing 1 is divided into a lower part 101 at the bottom and an upper part 102 ultrasonically welded to the lower part 101. This arrangement facilitates the installation of the internal structure.

[0026] The outer support frame 7 is rotatably connected to the outer shell 1. The outer support frame 7 includes an inner rotating mesh 701 and an outer rotating mesh 702 that can cover the gaps in the inner rotating mesh 701 by rotation. The inner rotating mesh 701 is divided into two symmetrical parts, which are ultrasonically welded together after being fitted onto the outer rotating mesh 702. The inner rotating mesh 701 is formed by spaced baffles, with the arc length between the baffles being less than the arc length of the baffles. The outer rotating mesh 702 is also formed by baffles, which cover the gaps in the inner rotating mesh 701. A clamping plate 703 pointing towards the inner rotating mesh 701 is fixedly installed above the outer rotating mesh 702. Above the rotating mesh 701, on both sides of the clamping plate 703, there are clamping posts 704 that limit the movement range of the clamping plate 703. When the clamping plate 703 contacts the two clamping posts 704, there are two states: the baffle of the outer rotating mesh 702 overlaps with the baffle of the inner rotating mesh 701, and the gap between the baffle of the outer rotating mesh 702 and the inner rotating mesh 701 overlaps. When the gap between the outer rotating mesh 702 and the inner rotating mesh overlaps, the outer support frame 7 forms a relatively sealed space. At this time, backflushing is performed, and the impurities under backflushing can be discharged through the drain port 9 at the bottom, avoiding accumulation in the inner ring of the outer filter membrane 10.

[0027] A blade 706 is fixedly installed above the outer surface of the outer rotating mesh 702. Two inlet pipes 707, pointing from opposite sides towards the blade 706, are connected and pass through the outer surface of the outer casing 1. The two inlet pipes 707 are connected and pass through a reversing valve 705. The reversing valve 705 switches the direction of the impact blade 706, thus switching the forward and reverse rotation of the blade 706, thereby changing the state between the inner rotating mesh 701 and the outer rotating mesh 702. Simultaneously, when the outer rotating mesh 702 is switched to overlap with the inner rotating mesh 701, the impact blade 706 continues. Due to the restraint of the clamping plate 703 and the clamping post 704, the inner rotating mesh 701 can scrape the deposits on the outer layer of the filter membrane 10. A reversing valve 708 is provided at the outlet end of the pump 2 8. One outlet end of the reversing valve 708 is connected and passes through the inlet end of the reversing valve 705.

[0028] The outer ring of the inner rotating mesh 701 has an annular groove 709, and the inner ring of the outer rotating mesh 702 has a ring block 710 that is engaged inside the annular groove 709. This arrangement can restrict the outer rotating mesh 702 from rotating along the inner rotating mesh 701.

[0029] The drain outlet 9 is located below the outer support frame 7. A sealing plug 901 is slidably connected inside the drain outlet 9. A sleeve is fixedly installed below the drain outlet 9. The diameter of the sleeve is larger than the diameter of the sealing plug 901. The outer ring of the sleeve is connected to and passes through a drain pipe 903. With this arrangement, the drain outlet 9 can be opened and closed by moving the sealing plug 901 up and down.

[0030] There are multiple sewage outlets 9, which are arranged in a ring. The bottom end of the sealing plug 901 is connected by a connecting plate 904. A sealing ring 902 is fixedly installed on the bottom end of the outer shell 1 and sleeved on the outside of the connecting plate 904. The sewage pipe 903 is connected to the outside of the sealing ring 902. The sealing ring 902 is equipped with a control mechanism 905 that controls the up and down movement of the sealing ring 902. The control mechanism 905 can be an electromagnet that works with a magnet installed on the bottom end of the connecting plate 904 to control the electromagnet to be energized and the direction of energization to switch the working state.

[0031] In use, the inner support frame 6 and the lower part 101 of the outer shell 1 are integrally formed, the filter membrane 10 is placed on the outer ring of the inner support frame 6, and the outer support frame 7 is sleeved on the outside of the filter membrane 10. The upper part 102 and the lower part 101 are ultrasonically welded, and then the corresponding pipes are connected.

[0032] When backwashing is required, the inlet direction of the liquid inlet pipe 707 is changed by controlling the reversing valve 708. The outer rotating mesh 702 and the inner rotating mesh 701 are sealed by blowing the blades 706. At this time, the water in the temporary storage chamber 4 is discharged from the inside of the filter membrane 10 to the outside by the pump 8 to backwash the filter membrane 10. The backwashed dirt is discharged directly through the drain port 9. After cleaning is completed, the reversing valve 708 is switched to change the direction of the liquid inlet pipe 707. Similarly, the outer rotating mesh 702 and the inner rotating mesh 701 are brought together, and the water can flow out. Similarly, the outer support frame 7 is switched until cleaning is completed.

[0033] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A membrane series backwash water filtration device, comprising a housing (1), characterized in that: The outer bottom of the outer shell (1) is provided with a water inlet (2), and a pump (3) for pumping water outward is fixedly installed at the top center of the outer shell (1). The outer ring of the outer shell (1) is provided with a temporary storage chamber (4) for storing filtered water. The output end of the pump (3) is connected to and passes through an electromagnetic tee (5). One water outlet end of the electromagnetic tee (5) is connected to and passes through the temporary storage chamber (4). At least two sets of concentric inner support frames (6) are fixedly installed inside the outer shell (1). A filter membrane (10) is provided on the outside of the inner support frame (6), and an outer support frame (7) is sleeved on the outer ring of the filter membrane (10). Pump 2 (8) is fixedly installed at the top of the temporary storage cavity (4). The drain end of pump 2 (8) extends to the inner ring of the innermost inner support frame (6). The bottom of the outer shell (1) is provided with an openable drain port (9).

2. The membrane series backwash water filtration device according to claim 1, characterized in that: The outer support frame (7) is rotatably connected to the outer shell (1). The outer support frame (7) includes an inner rotating mesh (701) and an outer rotating mesh (702) that can cover the gap of the inner rotating mesh (701) by rotation. A card plate (703) pointing to the inner rotating mesh (701) is fixedly installed above the outer rotating mesh (702). Card posts (704) that limit the movement range of the card plate (703) are provided on both sides of the card plate (703) above the inner rotating mesh (701). Blades (706) are fixedly installed on the outer surface of the outer rotating mesh (702). Two liquid inlet pipes (707) are connected and pass through the outer surface of the outer shell (1), which point to the blades (706) from opposite sides respectively. The two liquid inlet pipes (707) are connected and pass through through a reversing valve (705). A reversing valve (708) is provided at the outlet end of the pump (8). One outlet end of the reversing valve (708) is connected and passes through the inlet end of the reversing valve (705).

3. The membrane series backwash water filtration device according to claim 2, characterized in that: The outer ring of the inner rotating mesh (701) is provided with an annular groove (709), and the inner ring of the outer rotating mesh (702) is fixedly installed with an annular block (710) that is engaged inside the annular groove (709).

4. A membrane series backwash water filtration device according to any one of claims 1-3, characterized in that: The drain outlet (9) is located below the outer support frame (7). A sealing plug (901) is slidably connected inside the drain outlet (9). A sleeve is fixedly installed below the drain outlet (9). The diameter of the sleeve is larger than the diameter of the sealing plug (901). A drain pipe (903) is connected to and passes through the outer ring of the sleeve.

5. A membrane series backwash water filtration device according to claim 4, characterized in that: The number of the drain outlets (9) is multiple, and the multiple drain outlets (9) are distributed in a ring. The bottom end of the sealing plug (901) is connected by a connecting plate (904). The bottom end of the outer shell (1) is fixedly installed with a sealing ring (902) sleeved on the outside of the connecting plate (904). The drain pipe (903) is connected to the outside of the sealing ring (902). The inside of the sealing ring (902) is provided with a control mechanism (905) for controlling the up and down movement of the sealing ring (902).

6. The membrane series backwash water filtration device according to claim 1, characterized in that: The outer shell (1) is divided into a lower part (101) at the bottom end and an upper part (102) ultrasonically welded to the lower part (101).

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