Automatic cleaning device for ultrafiltration membrane

Abstract

The utility model discloses an automatic cleaning device for an ultrafiltration membrane, belongs to the technical field of ultrafiltration membrane cleaning, and mainly solves the problems that a cleaning device in the prior art only uses a cleaning nozzle to clean the outer surface of a fixed ultrafiltration membrane, the cleaning effect is poor and not thorough, impurities are usually accumulated in the ultrafiltration membrane or holes, and the cleaning efficiency is high. The cleaning device comprises a supporting frame, the supporting frame is in an inverted U shape, a cleaning box is arranged at the top of the supporting frame, a plurality of ultrafiltration membrane filter elements are arranged in the cleaning box, a cleaning assembly is arranged in the cleaning box, a liquid medicine box is arranged on one side of the supporting frame, and a medicine adding hopper is arranged at the top of the liquid medicine box in a penetrating mode. A water storage barrel is arranged at the top of the cleaning box and is in a long strip shape, a plurality of flushing pipes are embedded into the bottom of the water storage barrel, and one end of each flushing pipe extends into the corresponding ultrafiltration membrane filter element.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrafiltration membrane cleaning, and more specifically, particularly relates to an automatic ultrafiltration membrane cleaning device. Background Technique

[0002] An ultrafiltration membrane is an artificial permeable membrane used in the ultrafiltration process. Ultrafiltration technology can intercept particles of colloidal size in water, while water and low-molecular-weight solutes are allowed to pass through the membrane. The mechanism of ultrafiltration refers to the comprehensive effect of mechanical sieving on the membrane surface, membrane pore blockage, and adsorption on the membrane surface and in the membrane pores, mainly by sieving. Since the ultrafiltration membrane is a porous material and removes impurities in water by physical interception, the ultrafiltration membrane needs to be cleaned regularly to ensure the throughput of the ultrafiltration membrane and extend the service life of the ultrafiltration membrane. Therefore, an automatic cleaning device is required to perform cleaning operations on the ultrafiltration membrane.

[0003] However, there are various types of cleaning devices in the prior art. For example, the utility model patent CN212142146U relates to an ultrafiltration membrane self-cleaning device. This utility model is provided with a circulating cleaning mechanism. The circulating cleaning mechanism includes a water pump. A plurality of cleaning nozzles are arranged in the cleaning main body, and the plurality of cleaning nozzles are all connected to the water pump through a water delivery pipe. The water in the cleaning main body is pumped out by the water pump and then conveyed to the cleaning nozzles through the water delivery pipe to spray and clean the ultrafiltration membrane. A purification mechanism is connected between the water pump and the cleaning main body through a connecting pipe. The purification mechanism includes a purification main body, and a first purification layer and a second purification layer are arranged in the purification main body. By arranging the first purification layer and the second purification layer, the water for circulating cleaning is purified.

[0004] Although this cleaning device can directly spray and clean the fixed ultrafiltration membrane filter element, this cleaning device only uses the cleaning nozzles to clean the outer surface of the fixed ultrafiltration membrane, and the cleaning effect is not good and not thorough enough. Impurities usually also accumulate inside or in the pores of the ultrafiltration membrane, and it is difficult for the device to remove them. To avoid this phenomenon, it is very necessary to design an automatic ultrafiltration membrane cleaning device. Content 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. Some simplifications or omissions may be made in this part, as well as in the abstract of the specification and the title of the utility model of this application, to avoid obscuring the purpose of this part, the abstract of the specification, and the title of the utility model. However, 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 an automatic ultrafiltration membrane cleaning device, which is achieved by the following specific technical means:

[0007] An automatic cleaning device for ultrafiltration membranes, comprising a support frame. The shape of the support frame is an inverted U shape. A cleaning tank is arranged at the top of the support frame. A plurality of ultrafiltration membrane filters are arranged inside the cleaning tank. A cleaning component is arranged inside the cleaning tank. A liquid medicine tank is arranged on one side of the support frame. A medicine adding hopper penetrates through the top of the liquid medicine tank. A water storage cylinder is arranged at the top of the cleaning tank, and the water storage cylinder is in a long strip shape. A plurality of flushing pipes are embedded at the bottom of the water storage cylinder, and one end of each flushing pipe extends into the corresponding ultrafiltration membrane filter.

[0008] Preferably, the cleaning component includes a water pump, a water delivery pipe, a shunt pipe and a cleaning nozzle. An installation support is arranged on the outer surface of the side of the support frame far away from the liquid medicine tank. The water pump is fixedly installed at the top of the installation support. The output end of the water pump is connected with the water delivery pipe. One end of the water delivery pipe is connected with two shunt pipes. One end of each of the two shunt pipes extends into the cleaning tank. A fixed outer shell is arranged at the top of the installation support.

[0009] Preferably, the two shunt pipes are fixed to the inner wall of the cleaning tank through fixing parts. A plurality of cleaning nozzles are equidistantly installed on the outer surfaces of the two shunt pipes. The plurality of cleaning nozzles can be divided into two groups, and the two groups of cleaning nozzles are symmetrically arranged on both sides of the ultrafiltration membrane filter respectively.

[0010] Preferably, a flushing pump is fixedly installed at the top of the liquid medicine tank, and the flushing pump is fixed on one side of the medicine adding hopper. The output end of the flushing pump is connected with an infusion pipe, and one end of the infusion pipe extends into the water storage cylinder.

[0011] Preferably, a partition board is fixedly connected inside the support frame. A plurality of electric push rods are fixedly installed on the upper surface of the partition board. One end of each electric push rod is fixedly connected with a fixing frame. The shape of the fixing frame is a U shape. A base is arranged at the top of the fixing frame. A drain pipe penetrates through the top of the base.

[0012] Preferably, a plurality of top seats are fixed on the inner top wall of the cleaning tank. Sealing gaskets are arranged on the surfaces of the base and the top seat close to each other. The ultrafiltration membrane filter is located between the base and the top seat. A plurality of blocking sleeves are fixedly connected to the inner bottom wall of the cleaning tank. The base is located inside the blocking sleeve and matches with the blocking sleeve.

[0013] Preferably, a waste water tank is arranged inside the support frame, and the waste water tank is located below the partition board. One end of each drain pipe extends into the waste water tank. A access door is arranged on the front of the cleaning tank through a hinge.

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

[0015] When installing multiple ultrafiltration membrane filters fixedly in a cleaning tank, water is pumped into a water delivery pipe by a water pump. Through the conveying action of a shunt pipe, the water is introduced into multiple cleaning nozzles. First, the outer surfaces of the ultrafiltration membrane filters are rinsed by two groups of cleaning nozzles arranged on both sides, preliminarily removing the impurities adhering to the outer surfaces of the filters and completing the first-stage cleaning operation. After the first-stage cleaning operation, effective medicaments are added to a liquid medicine tank through a medicine adding hopper. When the liquid medicine is prepared, the liquid medicine is pumped into an infusion pipe by a flushing pump. Through the conveying action of a water storage cylinder, the liquid medicine is discharged into multiple ultrafiltration membrane filters respectively, rinsing the inner surfaces of the ultrafiltration membrane filters, making the liquid medicine react fully with the impurities remaining or blocking on the inner surfaces, further cleaning the inner surfaces of the ultrafiltration membrane filters, and removing the remaining or blocking small particle impurities to complete the second-stage cleaning operation. Thus, by using the double-cleaning method, the cleaning effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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:

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

[0018] Figure 2 is a perspective structure schematic diagram of the present utility model;

[0019] Figure 3 is a structure schematic diagram of a cleaning assembly;

[0020] Figure 4 is a schematic side sectional view of the present utility model;

[0021] Figure 5 is a schematic diagram of a partial structure of the present utility model;

[0022] Figure 6 is an enlarged structure schematic diagram at A.

[0023] In the figures: 1, support frame; 2, cleaning tank; 3, ultrafiltration membrane filter; 4, water pump; 5, water delivery pipe; 6, shunt pipe; 7, cleaning nozzle; 8, mounting support; 9, fixed housing; 10, liquid medicine tank; 11, medicine adding hopper; 12, flushing pump; 13, infusion pipe; 14, water storage cylinder; 15, flushing pipe; 16, drain pipe; 17, partition board; 18, electric push rod; 19, fixing frame; 20, base; 21, blocking sleeve; 22, top seat; 23, sealing gasket; 24, waste water tank; 25, access door. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] 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.

[0025] 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.

[0026] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that may be included in at least one implementation manner of the present utility model. The "in one embodiment" that appears in different places in this specification does not all refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. The present utility model provides the following embodiments.

[0027] As Figure 1 、 Figure 2 and Figure 3 shown, it is a schematic structural diagram of the ultrafiltration membrane automatic cleaning device in this embodiment. The automatic cleaning device in this embodiment includes a support frame 1, the shape of the support frame 1 is an inverted U shape, a cleaning tank 2 is arranged at the top of the support frame 1, a plurality of ultrafiltration membrane filters 3 are arranged inside the cleaning tank 2, and an installation support 8 is arranged on the outer surface of one side of the support frame 1 away from the liquid medicine tank 10. A water pump 4 is fixedly installed on the top of the installation support 8. The output end of the water pump 4 is connected with a water delivery pipe 5. One end of the water delivery pipe 5 is connected with two shunt pipes 6. One end of each of the two shunt pipes 6 extends into the cleaning tank 2. A fixed housing 9 is arranged on the top of the installation support 8. The two shunt pipes 6 are fixed to the inner wall of the cleaning tank 2 through fixing parts. A plurality of cleaning nozzles 7 are equidistantly installed on the outer surfaces of the two shunt pipes 6. The plurality of cleaning nozzles 7 can be divided into two groups. The two groups of cleaning nozzles 7 are symmetrically arranged on both sides of the ultrafiltration membrane filter 3 respectively. When fixing and installing a plurality of ultrafiltration membrane filters 3 in the cleaning tank 2, first start the water pump 4, pump clear water into the water delivery pipe 5 through the water pump 4, and through the conveying action of the shunt pipes 6, introduce the clear water into a plurality of cleaning nozzles 7. First, wash the outer surface of the ultrafiltration membrane filter 3 through the two groups of cleaning nozzles 7 arranged on both sides, and initially remove the impurities adhered to the outer surface of the filter element, thus completing the first-stage cleaning operation.

[0028] It should be noted that the water pump 4, the water delivery pipe 5, the shunt pipes 6 and the cleaning nozzles 7 in this embodiment form a cleaning assembly, and the cleaning assembly is used to wash the outer surface of the ultrafiltration membrane filter 3 to complete one-stage cleaning.

[0029] In addition, as Figure 2As shown in the figure, in this embodiment, a liquid medicine tank 10 is provided on one side of the support frame 1. A medicine adding hopper 11 penetrates through the top of the liquid medicine tank 10. A water storage cylinder 14 is provided on the top of the cleaning tank 2, and the water storage cylinder 14 is in a long strip shape. A plurality of flushing pipes 15 are embedded at the bottom of the water storage cylinder 14. One end of the flushing pipe 15 extends into the corresponding ultrafiltration membrane filter element 3. A flushing pump 12 is fixedly installed on the top of the liquid medicine tank 10, and the flushing pump 12 is fixed on one side of the medicine adding hopper 11. The output end of the flushing pump 12 is connected with an infusion pipe 13, and one end of the infusion pipe 13 extends into the water storage cylinder 14. After the first-stage cleaning operation is completed, a medicine that can effectively clean the ultrafiltration membrane filter element 3 is added to the liquid medicine tank 10 through the medicine adding hopper 11. When the liquid medicine is prepared, the flushing pump 12 is started. The flushing pump 12 pumps the liquid medicine into the infusion pipe 13. Through the conveying action of the water storage cylinder 14, the liquid medicine is discharged from the flushing pipe 15, and the liquid medicine is discharged into a plurality of ultrafiltration membrane filter elements 3 respectively to flush the inner surface of the ultrafiltration membrane filter element 3, so that the liquid medicine fully reacts with the impurities remaining or blocking on the inner surface, thereby cleaning the impurities. The small-particle impurities are discharged from the drain pipe 16 along with the liquid medicine and are discharged from the drain pipe 16 into the waste water tank 24 to further clean the inner surface of the ultrafiltration membrane filter element 3 and remove the remaining or blocking small-particle impurities to complete the second-stage cleaning operation. Thus, by using the double cleaning method, the cleaning effect is better.

[0030] As Figure 4 and Figure 6 As shown in the figure, in this embodiment, a plurality of top seats 22 are fixed on the inner top wall of the cleaning tank 2. Sealing gaskets 23 are provided on the surfaces of the base 20 and the top seat 22 that are close to each other. The ultrafiltration membrane filter element 3 is located between the base 20 and the top seat 22. A plurality of blocking sleeves 21 are fixedly connected to the inner bottom wall of the cleaning tank 2, and the base 20 is located in the blocking sleeve 21 and is matched with the blocking sleeve 21;

[0031] As Figure 5 and Figure 6 As shown in the figure, in this embodiment, a partition 17 is fixedly connected inside the support frame 1. A plurality of electric push rods 18 are fixedly installed on the upper surface of the partition 17. One end of each electric push rod 18 is fixedly connected with a fixing frame 19. The fixing frame 19 is in a U shape. A base 20 is provided on the top of the fixing frame 19. A drain pipe 16 penetrates through the top of the base 20. During the process of fixedly installing a plurality of ultrafiltration membrane filter elements 3, the ultrafiltration membrane filter element 3 is placed between the base 20 and the top seat 22. The telescopic end of the electric push rod 18 drives the base 20 to rise, so that the flushing pipe 15 and the drain pipe 16 are respectively embedded into the ultrafiltration membrane filter element 3, and the ultrafiltration membrane filter element 3 is fixedly abutted by the base 20 and the top seat 22, thereby completing the installation and fixation of the ultrafiltration membrane filter element 3.

[0032] As Figure 1As shown, in this embodiment, a waste water tank 24 is provided inside the support frame 1, and the waste water tank 24 is located below the partition plate 17. One end of each liquid discharge pipe 16 extends into the waste water tank 24. A pick-and-place door 25 is provided on the front of the cleaning tank 2 through a hinge.

[0033] 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 principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic ultrafiltration membrane cleaning device, comprising a support frame (1), the support frame (1) is in an inverted U shape, a cleaning box (2) is arranged on the top of the support frame (1), and a plurality of ultrafiltration membrane filter elements (3) are arranged inside the cleaning box (2), characterized in that: A cleaning assembly is arranged inside the cleaning box (2), a liquid medicine box (10) is arranged on one side of the support frame (1), a medicine adding hopper (11) is arranged through the top of the liquid medicine box (10), a water storage cylinder (14) is arranged on the top of the cleaning box (2), and the water storage cylinder (14) is in the shape of a long strip, and a plurality of flushing pipes (15) are embedded in the bottom of the water storage cylinder (14), and one end of the flushing pipe (15) extends into the corresponding ultrafiltration membrane filter element (3).

2. The automatic ultrafiltration membrane cleaning device according to claim 1, characterized in that: The cleaning component comprises a water pump (4), a water delivery pipe (5), a shunt pipe (6) and a cleaning nozzle (7); a mounting bracket (8) is provided on the outer surface of a side of the support frame (1) away from the liquid medicine tank (10); a water pump (4) is fixedly mounted on the top of the mounting bracket (8); an output end of the water pump (4) is connected to the water delivery pipe (5); one end of the water delivery pipe (5) is connected to two shunt pipes (6); one end of the two shunt pipes (6) both extend into the cleaning tank (2); and a fixed housing (9) is provided on the top of the mounting bracket (8).

3. The automatic ultrafiltration membrane cleaning device according to claim 2, characterized in that: The two shunt pipes (6) are fixed to the inner wall of the cleaning box (2) by means of fixing parts. A plurality of cleaning nozzles (7) are equidistantly installed on the outer surfaces of the two shunt pipes (6). The plurality of cleaning nozzles (7) can be divided into two groups. The two groups of cleaning nozzles (7) are respectively located on both sides of the ultrafiltration membrane filter element (3) and are symmetrically arranged.

4. The automatic ultrafiltration membrane cleaning device according to claim 1, characterized in that: A flushing pump (12) is fixedly mounted on the top of the medicine liquid tank (10), and the flushing pump (12) is fixed to one side of the medicine adding hopper (11). The output end of the flushing pump (12) is connected to an infusion tube (13), and one end of the infusion tube (13) extends into the water storage cylinder (14).

5. The automatic ultrafiltration membrane cleaning device according to claim 1, characterized in that: A partition (17) is fixedly connected inside the support frame (1), a plurality of electric push rods (18) are fixedly mounted on the upper surface of the partition (17), one end of each electric push rod (18) is fixedly connected to a fixing frame (19), the fixing frame (19) is U-shaped, a base (20) is arranged on the top of the fixing frame (19), and a liquid discharge pipe (16) is arranged through the top of the base (20).

6. The automatic ultrafiltration membrane cleaning device according to claim 1, characterized in that: A plurality of top seats (22) are fixed to the inner top wall of the cleaning box (2); surfaces of the base (20) and the top seat (22) close to each other are provided with sealing gaskets (23); the ultrafiltration membrane filter element (3) is located between the base (20) and the top seat (22); a plurality of blocking sleeves (21) are fixedly connected to the inner bottom wall of the cleaning box (2); the base (20) is located in the blocking sleeve (21) and matches the blocking sleeve (21).

7. The automatic ultrafiltration membrane cleaning device according to claim 1, characterized in that: A waste water tank (24) is arranged inside the support frame (1), and the waste water tank (24) is located below the partition (17). One end of the drainage pipe (16) extends into the waste water tank (24). The front of the cleaning box (2) is provided with a loading and unloading door (25) through a hinge.

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