A self-cleaning flat sheet membrane water purification apparatus

Abstract

The utility model provides a kind of self-cleaning flat sheet membrane water purification equipment, it is related to flat sheet membrane water purification field, the bottom of box is provided with flat sheet membrane support, flat sheet membrane is fixedly installed on flat sheet membrane support, the top of flat sheet membrane is provided with cleaning mechanism, and cleaning mechanism top is provided by spray pipe.Cleaning mechanism is composed of support, rotating brush, slide bar and lifting motor.Thread hole is opened on support, and thread is processed on slide bar, lifting motor is fixedly connected with slide bar, rotating brush is sleeved on support, and one end is fixedly connected with motor.The rotation of lifting motor makes support drive rotating brush reciprocatingly move up and down, while spray pipe sprays clean water on flat sheet membrane, and impurities are washed clean, compressed air is introduced into water outlet pipe to blow out impurities in membrane hole, to realize the self-cleaning of water purification equipment, save water resources and clean flat sheet membrane comprehensively.

Description

Technical Field

[0001] This utility model relates to the field of flat sheet membrane water purification, and in particular to a self-cleaning flat sheet membrane water purification device. Background Technology

[0002] Flat-sheet membrane water purification equipment is a high-efficiency device that uses flat-sheet filter membranes for water purification, and is mainly used in industrial and municipal wastewater treatment.

[0003] During long-term use, impurities easily accumulate on the surface and inside the pores of the flat sheet membrane in water purification equipment, thus requiring regular cleaning. Current technologies for cleaning flat sheet membranes consume large amounts of water, resulting in water waste. Furthermore, the cleaning ability of mechanical brushes is limited, making it difficult to thoroughly clean certain areas of the membrane and the inside of the pores. Utility Model Content

[0004] This invention addresses the problem that cleaning flat sheet membranes in the prior art requires a large amount of clean water and that some areas are difficult to clean thoroughly, by providing a self-cleaning flat sheet membrane water purification device.

[0005] The technical solution adopted in this utility model is:

[0006] A self-cleaning flat-sheet membrane water purification device, comprising:

[0007] The housing and a cleaning mechanism disposed inside the housing, the housing being used to discharge the impurities cleaned out by the cleaning mechanism;

[0008] The cleaning organization includes at least:

[0009] A support that can move up and down;

[0010] Rotary brush connected to the bracket.

[0011] Furthermore, the cleaning mechanism also includes:

[0012] A sliding rod, which is rotatably connected to the top of the bracket;

[0013] A lifting motor is provided, with its output end fixedly connected to the slide bar.

[0014] The slide bar is machined with external threads, and the bracket is machined with threaded holes.

[0015] Furthermore, the lifting motor is located on the outer side of the top of the housing.

[0016] Furthermore, the rotating brush is provided in several parts.

[0017] Furthermore, a flat film support is provided on the inner bottom side of the box body for fixing the flat film.

[0018] Furthermore, the flat membrane support is provided in several parts.

[0019] Furthermore, a drain pipe is provided at the bottom of the box;

[0020] A water inlet pipe is provided on one side of the box;

[0021] A water outlet pipe is provided on the other side of the box;

[0022] The water outlet pipe is connected to an air compression system.

[0023] Furthermore, a spray pipe is provided above the cleaning mechanism.

[0024] Furthermore, a hollow tube is connected to the bracket, and the rotating brush is sleeved on the hollow tube.

[0025] The beneficial effects of this utility model are:

[0026] The bottom of the unit houses a flat-sheet membrane support, on which the membrane is fixedly mounted. A cleaning mechanism is located above the membrane, and a spray pipe is positioned above the cleaning mechanism. The cleaning mechanism consists of a support, a rotating brush, a sliding rod, and a lifting motor. The support has threaded holes, and the sliding rod is also threaded. The lifting motor is fixedly connected to the sliding rod, and the rotating brush is fitted onto the support, with one end fixedly connected to the motor. The rotation of the lifting motor causes the support to move the rotating brush up and down repeatedly, while the spray pipe sprays clean water onto the membrane, washing away impurities. Compressed air is then introduced through the outlet pipe to blow out impurities from the membrane pores, achieving self-cleaning of the water purification equipment, saving water resources, and thoroughly cleaning the flat-sheet membrane. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a cross-sectional view of the water purification device in this utility model.

[0029] Figure 2 This is a schematic diagram of the cleaning mechanism in this utility model.

[0030] Figure 3 This is a schematic diagram of the support structure in this utility model.

[0031] Marked in the image:

[0032] 100. Flat sheet membrane water purification equipment; 101. Housing; 102. Cleaning mechanism; 103. Spray pipe; 104. Flat sheet membrane; 105. Outlet pipe; 106. Flat sheet membrane support; 107. Sewage pipe; 108. Inlet pipe;

[0033] 1021. Support frame; 1022. Rotating brush; 1023. Slide bar; 1024. Lifting motor;

[0034] 10211, Vertical plate; 10212, Hollow tube; 10213, Threaded hole. Detailed Implementation

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this invention.

[0037] The embodiments of the utility model will now be described in detail with reference to the accompanying drawings.

[0038] This embodiment provides a self-cleaning flat sheet membrane water purification device 100 to solve the problem that cleaning the flat sheet membrane 104 requires a large amount of clean water and that some areas are difficult to clean thoroughly, so as to save water resources and extend the cleaning cycle of the flat sheet membrane 104.

[0039] Figure 1This is a cross-sectional schematic diagram of a flat-sheet membrane water purification device 100. As shown in the diagram, the flat-sheet membrane water purification device 100 mainly includes a housing 101, a cleaning mechanism 102, a spray pipe 103, a flat-sheet membrane 104, an outlet pipe 105, a flat-sheet membrane support 106, a drain pipe 107, and an inlet pipe 108. The housing 101 has a rectangular box-shaped structure. A flat-sheet membrane support 106 is installed on the bottom surface of the housing to fix and support the flat-sheet membrane 104. Several flat-sheet membrane supports 106 are evenly spaced along the front-back direction of the housing 101. The flat-sheet membrane 104 is fixed above the flat-sheet membrane support 106 and is evenly distributed along the left-right direction of the housing 101. Membrane pores are opened on the surface of the flat-sheet membrane 104 to filter impurities and achieve water purification. A cleaning mechanism 102 is provided above the flat membrane 104. A spray pipe 103 extending in the left and right direction along the box body 101 is provided above the cleaning mechanism 102. Several spray holes are evenly distributed on the spray pipe 103. One end of the spray pipe 103 is fixedly connected to the side wall of the box body 101, and the other end passes through the other side wall of the box body 101.

[0040] Thus, the cleaning mechanism 102 reciprocates vertically to scrub the surface and pores of the flat sheet membrane 104, causing deposited impurities to fall off or loosen. Then, the spray pipe 103 is connected to an external water source and sprays clean water through the spray holes to rinse the surface of the flat sheet membrane 104. The loosened impurities are washed to the bottom of the housing 101 by the water flow. The flat sheet membrane supports 106 are spaced relatively far apart to accommodate the impurities washed down. Finally, the impurities are discharged from the housing through the drain pipe 107 installed at the bottom of the housing 101.

[0041] A water inlet pipe 108 is installed on the left side wall of the housing 101 near the top of the housing 101. A mounting flange is formed at the end of the water inlet pipe 108 away from the side wall of the housing 101, facilitating connection between the water inlet pipe 108 and an external water source. A water outlet pipe 105 is installed on the right side wall of the housing 101 near the bottom. A mounting flange is also formed at the end of the water outlet pipe 105 away from the side wall of the housing 101, facilitating connection between the water outlet pipe 105 and an air compression system. Compressed air is then blown in reverse through the water outlet pipe 105 to blow out impurities deposited in the membrane pores.

[0042] See the cleaning mechanism 102 of the water purification equipment. Figure 2 and Figure 3The cleaning mechanism 102 mainly consists of a support 1021, a rotating brush 1022, a slide rod 1023, and a lifting motor 1024. Two parallel vertical plates 10211 are provided at both ends of the support 1021. Hollow tubes 10212 are positioned between the two parallel vertical plates 10211 and are evenly spaced along the length of the vertical plates 10211. The hollow tubes 10212 are located on both sides of the flat membrane 104. Threaded holes 10213 are provided on the parallel vertical plates 10211. External threads are machined on the slide rod 1023, and the vertical movement of the support 1021 is achieved through the engagement of the slide rod 1023 with the threaded holes on the vertical plates 10211. The lifting motor 1024 is fixedly connected to the other end of the slide rod 1023 away from the support 1021. The lifting motor 1024 is installed on the outer side of the top of the housing 101, allowing the slide rod 1023 to penetrate through the top of the housing 101.

[0043] The rotating brush 1022 has a hollow structure, just like the hollow tube, to reduce the weight of the water purification equipment. Its outer surface is covered with flexible bristles. The inner diameter of the rotating brush 1022 is larger than the outer diameter of the hollow tube 10212. Thus, the rotating brush 1022 is fitted onto the hollow tube 10212 and can rotate around its axis. Both sides of the flat sheet membrane 104 are in contact with the rotating brush 1022. A motor (not shown in the figure) is installed inside the hollow tube 10212. The output end of the motor is fixedly connected to the rotating brush 1022. The output shaft of the motor drives the rotating brush 1022 to rotate on the hollow tube 10212, thus brushing the surface and pores of the flat sheet membrane 104.

[0044] When using the water purification equipment, first close the inlet pipe 108 to stop the water supply and drain the remaining water inside the tank 101 through the drain pipe 107. Then connect the outlet pipe 105 to the air compression system. Next, start the lifting motor 1024, which drives the slide rod 1023 to rotate. The slide rod 1023 is connected to the bracket 1021 by threads, allowing the bracket 1021 to move up and down inside the tank 101. At the same time, start the motor in the hollow tube 10212. The output shaft of the motor drives the rotating brush 1022 to rotate synchronously. Thus, the up and down movement of the bracket 1021 drives the rotating brush 1022 to brush the surfaces and membrane pores on both sides of the flat membrane 104. The brushing is repeated at least 3 times.

[0045] When the cleaning mechanism 102 cleans the flat sheet membrane 104 installed inside the housing 101, it activates the air compression system connected to the water outlet pipe 105, blowing compressed air back into the housing 101 through the water outlet pipe 105 for 30 to 90 seconds. Since the flat sheet membrane 104 has membrane pores, the compressed air can pass through it and blow out impurities deposited inside the pores, causing them to fall to the bottom of the housing 101. Then, the spray pipe 103 is opened, spraying clean water onto the flat sheet membrane 104 for 20 to 50 seconds. Simultaneously, the rotating brush 1022 continues to move up and down, scrubbing the surface and pores of the flat sheet membrane 104, thus achieving self-cleaning of the water purification equipment.

[0046] Finally, the impurities mixed with water cleaned from the surface and pores of the flat membrane 104 are discharged through the drain pipe 107 at the bottom of the tank 101. After the sewage is completely discharged, the drain pipe 107 is closed, the inlet pipe 108 is opened, and the compressed air system connected to the outlet pipe 105 is disconnected, so that the equipment can return to operation.

[0047] The above embodiments are merely a more detailed description of the present utility model. For those skilled in the art, modifications or equivalent substitutions can still be made to the technical solutions in the foregoing embodiments. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model patent.

Claims

1. A self-cleaning flat-sheet membrane water purification device (100), characterized in that, include: The housing (101) and the cleaning mechanism (102) disposed inside the housing (101), the housing (101) being used to discharge the impurities cleaned out by the cleaning mechanism (102); The cleaning mechanism (102) includes at least: A height-movable support (1021). Rotary brush (1022) is rotatably connected to the bracket (1021).

2. The flat-sheet membrane water purification device (100) according to claim 1, characterized in that, The cleaning mechanism (102) also includes: A slide bar (1023) is rotatably connected to the top of the bracket (1021); A lifting motor (1024) is fixedly connected to the slide bar (1023) at its output end; The slide bar (1023) is machined with external threads, and the bracket (1021) is machined with threaded holes (10213).

3. The flat-sheet membrane water purification device (100) according to claim 2, characterized in that: The lifting motor (1024) is located on the outer side of the top of the housing (101).

4. The flat-sheet membrane water purification device (100) according to claim 1, characterized in that: The rotating brush (1022) is provided in several parts.

5. The flat-sheet membrane water purification device (100) according to claim 1, characterized in that: A flat film support (106) is provided on the inner bottom of the box (101) for fixing the flat film (104).

6. The flat-sheet membrane water purification device (100) according to claim 5, characterized in that: The flat membrane support (106) is provided in several parts.

7. The flat-sheet membrane water purification device (100) according to claim 1, characterized in that: A drain pipe (107) is provided at the bottom of the box (101). A water inlet pipe (108) is provided on one side of the box (101); A water outlet pipe (105) is provided on the other side of the box (101); The water outlet pipe (105) is connected to an air compression system.

8. The flat-sheet membrane water purification device (100) according to claim 1, characterized in that: A spray pipe (103) is provided above the cleaning mechanism (102).

9. The flat-sheet membrane water purification device (100) according to claim 1, characterized in that: A hollow tube (10212) is connected to the bracket (1021), and the rotating brush (1022) is sleeved on the hollow tube (10212).

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