Ultrasonic reverse osmosis membrane cleaning device

Abstract

The ultrasonic reverse osmosis membrane cleaning device comprises a cleaning box, at least one sealing sleeve is arranged at the top of a first strip-shaped seat, an opening of the sealing sleeve faces a second strip-shaped seat, the end, away from the opening, of the sealing sleeve is connected with one end of a circulating device, and the other end of the circulating device is connected with the cleaning box. A sealing end cover corresponding to the sealing sleeve is arranged at the top of the second strip-shaped base, the end, away from the sealing sleeve, of the sealing end cover is rotationally installed on an adjusting screw rod, and a plurality of circulation openings are formed in the surface, on the peripheral side of the adjusting screw rod, of the sealing end cover. When the reverse osmosis membrane cleaning device is used, the circulating pump drives cleaning liquid in the filter to flow into the sealing sleeve, then the cleaning liquid in the sealing sleeve enters the reverse osmosis membrane from the end part of the reverse osmosis membrane under the action of certain pressure, so that the cleaning liquid is driven to enter the membrane for cleaning, and in the cleaning process, the cleaning liquid subjected to ultrasonic vibration can thoroughly clean the interior of the membrane; and the film is thoroughly cleaned.

Description

An ultrasonic reverse osmosis membrane cleaning device Technical Field

[0001] This utility model relates to the field of reverse osmosis membrane cleaning technology, specifically to an ultrasonic reverse osmosis membrane cleaning device. Background Technology

[0002] The working principle of reverse osmosis membranes is based on pressure difference driven membrane separation technology. Reverse osmosis membranes are selective permeable membranes with pore sizes as small as nanometers, which allow water molecules to pass through while blocking other substances such as minerals, organic matter, and microorganisms from passing through.

[0003] As reverse osmosis membranes operate for longer periods, their permeate and desalination rates decrease. Generally, the membrane module needs cleaning when the permeate rate decreases by 10% and the desalination rate by 5%. There are two cleaning methods: physical and chemical. The former involves flushing the membrane surface with a large volume of water to remove deposits, while the latter can clean the membrane more thoroughly. However, due to the long length of the reverse osmosis membrane, it is not convenient to fix it in place during cleaning.

[0004] For example, the ultrasonic reverse osmosis membrane cleaning device proposed in document number "CN214321148U" states in section

[0019] that "water and cleaning agent are injected into the cleaning tank, then the ultrasonic cleaner is turned on, and then the reverse osmosis membrane is fixed by the clamping mechanism." However, according to section

[0020] , "the clamping structure includes a first fixing plate, a second fixing plate, a lead screw, a top clamping plate, and a handle." During use, the reverse osmosis membrane is placed between the first fixing plate and the top clamping plate, and then the handle is turned to move the lead screw to move the top clamping plate to the left, thereby clamping the membrane between the top clamping plate and the first fixing plate. It should be noted that because the membrane contains a support tube, it can withstand axial force but not radial pressure, which would damage the membrane. Therefore, we propose an ultrasonic reverse osmosis membrane cleaning device. Summary of the Invention

[0005] This invention provides an ultrasonic reverse osmosis membrane cleaning device, which has the advantages of both circulating cleaning and ultrasonic cleaning, and solves the problems mentioned in the background art.

[0006] The technical solution of this utility model is implemented as follows: An ultrasonic reverse osmosis membrane cleaning device includes a cleaning tank. A first strip seat and a second strip seat are arranged in parallel inside the cleaning tank. At least one sealing sleeve is provided on the top of the first strip seat. The opening of the sealing sleeve faces the second strip seat. The end of the sealing sleeve away from its opening is connected to one end of a circulation device. The other end of the circulation device is connected to the cleaning tank. A sealing end cap corresponding to the sealing sleeve is provided on the top of the second strip seat. The end of the sealing end cap away from the sealing sleeve is rotatably mounted on an adjusting screw. Multiple flow ports are provided on the surface of the sealing end cap around the adjusting screw. The adjusting screw is threadedly connected to a first L-shaped frame. The first L-shaped frame is connected to the second strip seat. This application also includes an ultrasonic generating device installed on the cleaning tank.

[0007] Preferably, the sealing sleeve is located on the side of the second strip seat away from the sealing end cap, and the bottom of the sealing sleeve is connected to the second strip seat via the second L-shaped bracket.

[0008] Preferably, the top of the first strip seat and the second strip seat are provided with grooves for placing the reverse osmosis membrane.

[0009] Preferably, the first strip seat and the second strip seat are located inside the support frame, and the two ends of the first strip seat and the second strip seat are fixed to the support frame respectively. The bottom edge of the support frame is placed on multiple supports, and the supports are all fixedly installed on the inner wall of the cleaning tank.

[0010] Preferably, the sealing end cap has an annular groove on the side near the sealing sleeve.

[0011] Preferably, the circulation device includes a filter, the filter inlet is connected to the bottom side of the cleaning tank via a pipe, the filter outlet is connected to a circulation pump via a pipe, and the circulation pump is connected to a sealing sleeve via a pipe.

[0012] Preferably, the ultrasonic generator includes a transducer disposed at the bottom of the cleaning tank, and the transducer is electrically connected to the ultrasonic generator.

[0013] Preferably, the bottom edge of the cleaning tank is connected to the support frame by multiple legs, and the support frame is equipped with a mounting base, on which the ultrasonic generator, circulation pump and filter are all mounted.

[0014] Preferably, the mounting base is also equipped with a control cabinet, which contains a controller that is electrically connected to the ultrasonic generator and the circulating pump.

[0015] Preferably, at least one drain valve is provided on the bottom side of the cleaning tank.

[0016] Compared with the prior art, in use, the inlet end of the reverse osmosis membrane is placed inside the sealing sleeve, and the end of the reverse osmosis membrane away from the sealing sleeve is placed on the side of the sealing end cap. Then, the adjusting screw is rotated to move the sealing end cap towards the end of the membrane, so that the sealing end cap firmly presses the membrane into the sealing sleeve. At this time, the circulation pump can be started, which drives the cleaning solution in the filter to flow into the sealing sleeve. Then, the cleaning solution in the sealing sleeve enters from the end of the reverse osmosis membrane under a certain pressure, thereby driving the cleaning solution into the membrane for cleaning. Then, the wastewater will flow out from the outlet at the end of the reverse osmosis membrane. During the cleaning process, the ultrasonically vibrating cleaning solution can thoroughly clean the inside of the membrane, so that the membrane is thoroughly cleaned. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 is a structural schematic diagram of one side of this utility model.

[0019] Figure 2 is a structural schematic diagram of the other side of this utility model.

[0020] Figure 3 is a schematic diagram of the internal structure of the cleaning box of this utility model.

[0021] Figure 4 is a schematic diagram of the support frame of this utility model.

[0022] Figure 5 is a schematic diagram of the support frame of this utility model.

[0023] In the diagram: 1. Support leg; 2. Support base; 3. Support frame; 4. Cleaning tank; 5. Sealing sleeve; 6. Ultrasonic generator; 7. Circulating pump; 8. Control cabinet; 9. Bearing frame; 10. Mounting base; 11. Filter; 12. Sealing end cap; 13. First L-shaped frame; 14. Adjusting screw; 15. First strip seat; 16. Second strip seat; 17. Rotary wheel; 18. Flow port; 19. Annular groove; 20. Second L-shaped frame; 21. Flow meter. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Referring to Figures 1 to 5, this utility model provides a technical solution: an ultrasonic reverse osmosis membrane cleaning device, including a cleaning tank 4, which contains cleaning liquid or water (the cleaning liquid will be described in detail below). The bottom edge of the cleaning tank 4 is connected to the support frame 9 by multiple support legs 1. In order to strengthen the support strength of the support frame 9, a mounting seat 10 is provided inside the support frame 9. At least one drain valve (not shown in the figure) is provided on the bottom side of the cleaning tank 4.

[0026] A circulation device is provided above the support frame 9, that is, the circulation device includes a filter 11. The outlet of the filter 11 is connected to the circulation pump 7 through a pipe. The circulation pump 7 is a high-pressure pump. Both the circulation pump 7 and the filter 11 are mounted on the mounting base 10.

[0027] Meanwhile, an ultrasonic generator 6 is provided on the mounting base 10, wherein the transducer is electrically connected to the ultrasonic generator 6, and the number of transducers is at least one. The ultrasonic generator 6 and the transducer constitute an ultrasonic generating device. The ultrasonic generating device is set on the cleaning tank 4, specifically by installing the transducer at the bottom of the cleaning tank 4. Therefore, when the ultrasonic generating device is started, it can drive the cleaning fluid in the cleaning tank 4 to generate ultrasonic vibration.

[0028] As shown in Figure 1, a control cabinet 8 is also provided on the mounting base 10. The control cabinet 8 contains a controller, which is electrically connected to the ultrasonic generator 6 and the circulating pump 7. An operation screen and operation buttons are provided on the surface of the control cabinet 8, and the operation screen and operation buttons are connected to the controller.

[0029] Furthermore, a first strip seat 15 and a second strip seat 16 are arranged in parallel inside the cleaning tank 4. As shown in Figure 3, the first strip seat 15 and the second strip seat 16 are located inside the support frame 3, and the two ends of the first strip seat 15 and the second strip seat 16 are fixed to the support frame 3 respectively. The bottom edge of the support frame 3 is placed on multiple supports 2, and the supports 2 are all fixedly set on the inner wall of the cleaning tank 4. The support frame 3 can be taken out from the cleaning tank 4. When placing the support frame 3 inside the cleaning tank 4, it is only necessary to place the support frame 3 on the supports 2.

[0030] The top of the first strip seat 15 is provided with at least one sealing sleeve 5. When the number of sealing sleeves 5 is ≥2, they are arranged at intervals along the first strip seat 15. The opening of the sealing sleeve 5 faces the second strip seat 16. The top of the second strip seat 16 is provided with a sealing end cap 12 corresponding to the sealing sleeve 5. The sealing end cap 12 is coaxial with the sealing sleeve 5, and the size of both matches the size of the reverse osmosis membrane.

[0031] The end of the sealing end cap 12 away from the sealing sleeve 5 is rotatably mounted on the adjusting screw 14. Multiple flow ports 18 are provided on the surface of the sealing end cap 12 around the adjusting screw 14. The adjusting screw 14 is threadedly connected in the first L-shaped frame 13. The first L-shaped frame 13 is connected to the second strip seat 16. In order to facilitate the rotation of the adjusting screw 14, a rotating wheel 17 is provided at the end of the adjusting screw 14 away from the sealing end cap 12. Rotating the rotating wheel 17 can drive the adjusting screw 14 to rotate. The rotating adjusting screw 14 can move within the first L-shaped frame 13.

[0032] Based on the above embodiments, the ultrasonic reverse osmosis membrane cleaning device works as follows: the inlet end of the reverse osmosis membrane to be cleaned (as indicated by arrow A in Figures 1 and 2) is placed inside the sealing sleeve 5. The size of the inner cavity of the sealing sleeve 5 matches the inlet end. Since a sealing ring is provided at the inlet end of the reverse osmosis membrane, the sealing ring can seal the seal between the sealing sleeve 5 and the inlet end.

[0033] The end of the reverse osmosis membrane away from the sealing sleeve 5 is placed on the side of the sealing end cap 12. Then, the adjusting screw 14 is rotated to drive the sealing end cap 12 toward the end of the permeation membrane, so that the sealing end cap 12 firmly presses the permeation membrane against the sealing sleeve 5.

[0034] The cleaning solution in the cleaning tank 4 must completely cover the reverse osmosis membrane. It's also important to emphasize that the end of the sealing sleeve 5 furthest from its opening is connected to one end of the circulation device, meaning the circulation pump 7 is connected to the sealing sleeve 5 via a pipe; the other end of the circulation device is connected to the cleaning tank 4, meaning the inlet of the filter 11 is connected to the bottom side of the cleaning tank 4 via a pipe, allowing the cleaning solution in the cleaning tank 4 to flow into the filter 11. Therefore, when the circulation pump 7 starts, it drives the cleaning solution in the filter 11 into the sealing sleeve 5. Then, under a certain pressure, the cleaning solution in the sealing sleeve 5 enters from the end of the reverse osmosis membrane, thus driving the cleaning solution into the membrane for cleaning. Wastewater then flows out from the outlet 18 at the end of the reverse osmosis membrane. The water in the cleaning tank 4 is filtered and becomes clean by the filter 11. Therefore, the circulation pump 7 can always pump clean cleaning solution tightly into the reverse osmosis membrane for cleaning.

[0035] During the cleaning process, the transducer is constantly operating, allowing the ultrasonically vibrating cleaning fluid to thoroughly clean the inside of the membrane. The dirt will be completely carried out by the cleaning fluid flowing inside the membrane, making the membrane thoroughly clean.

[0036] Furthermore, the sealing sleeve 5 is located on the side of the second strip seat 16 away from the sealing end cap 12, and the bottom of the sealing sleeve 5 is connected to the second strip seat 16 via the second L-shaped bracket 20. A groove for placing the reverse osmosis membrane is provided at the top of the first strip seat 15 and the second strip seat 16. Therefore, when cleaning the membrane, it is only necessary to place the membrane in the groove for positioning, and then rotate the rotating wheel 17 to push the reverse osmosis membrane into the sealing sleeve 5 by the advancing sealing end cap 12.

[0037] As shown in Figure 5, an annular groove 19 is provided on the side of the sealing end cap 12 near the sealing sleeve 5, and the end of the reverse osmosis membrane away from the sealing sleeve 5 is positioned in the annular groove 19.

[0038] Based on the above embodiments, further optimization can be made. When the number of sealing sleeves 5 is ≥2, in order to better monitor the flow rate into the sealing sleeves 5, as shown in Figure 2, flow meters 21 are respectively installed on the pipes connected to the sealing sleeves 5. The flow meters 21 are electrically connected to the controller. In addition, valves are installed on the pipes to facilitate the opening and closing of the pipes and pressure sensors. The pressure sensors are used to monitor water pressure and are electrically connected to the controller.

[0039] Based on the above embodiments, further optimization is possible. Filter 11 is a security filter, and its quantity is at least one. When the quantity of filters 11 is ≥2, the filters 11 are connected in series. During the process from the cleaning tank 4 to the circulation pump 7, the filtration mesh of the filters 11 increases sequentially, allowing the water in the cleaning tank 4 to undergo coarse filtration, fine filtration and fine filtration processes, making the cleaning liquid cleaner. After the filters have been used for a certain period of time, the filter element needs to be replaced.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ultrasonic reverse osmosis membrane cleaning device, comprising a cleaning tank (4), characterized in that, The cleaning tank (4) is provided with a first strip seat (15) and a second strip seat (16) in parallel. The top of the first strip seat (15) is provided with at least one sealing sleeve (5), the opening of the sealing sleeve (5) faces the second strip seat (16), the end of the sealing sleeve (5) away from its opening is connected to one end of the circulation device, and the other end of the circulation device is connected to the cleaning tank (4). The top of the second strip seat (16) is provided with a sealing end cap (12) corresponding to the sealing sleeve (5), the end of the sealing end cap (12) away from the sealing sleeve (5) is rotatably mounted on the adjusting screw (14), and multiple flow ports (18) are provided on the surface of the sealing end cap (12) around the adjusting screw (14). The adjusting screw (14) is threadedly connected to the first L-shaped frame (13), and the first L-shaped frame (13) is connected to the second strip seat (16). The cleaning tank (4) also includes an ultrasonic generator.

2. The ultrasonic reverse osmosis membrane cleaning device as described in claim 1, characterized in that, The sealing sleeve (5) is located on the side of the second strip seat (16) away from the sealing end cap (12), and the bottom of the sealing sleeve (5) is connected to the second strip seat (16) through the second L-shaped bracket (20).

3. The ultrasonic reverse osmosis membrane cleaning device as described in claim 2, characterized in that, The top of the first strip seat (15) and the second strip seat (16) are provided with grooves for placing reverse osmosis membranes.

4. The ultrasonic reverse osmosis membrane cleaning device as described in claim 3, characterized in that, The first strip seat (15) and the second strip seat (16) are located inside the support frame (3). The two ends of the first strip seat (15) and the second strip seat (16) are fixed to the support frame (3) respectively. The bottom edge of the support frame (3) is placed on multiple supports (2), and the supports (2) are all fixedly set on the inner wall of the cleaning tank (4).

5. The ultrasonic reverse osmosis membrane cleaning device as described in claim 1, characterized in that, The sealing end cap (12) has an annular groove (19) on the side near the sealing sleeve (5).

6. The ultrasonic reverse osmosis membrane cleaning device according to any one of claims 1-5, characterized in that, The circulation device includes a filter (11), the inlet of which is connected to the bottom side of the cleaning tank (4) via a pipe, and the outlet of which is connected to the circulation pump (7) via a pipe. The circulation pump (7) is connected to the sealing sleeve (5) via a pipe.

7. The ultrasonic reverse osmosis membrane cleaning device as described in claim 6, characterized in that, The ultrasonic generator includes a transducer located at the bottom of the cleaning tank (4), and the transducer is electrically connected to the ultrasonic generator (6).

8. The ultrasonic reverse osmosis membrane cleaning device as described in claim 7, characterized in that, The bottom edge of the cleaning tank (4) is connected to the support frame (9) by multiple support legs (1). The support frame (9) is equipped with a mounting base (10). The ultrasonic generator (6), circulation pump (7) and filter (11) are all mounted on the mounting base (10).

9. The ultrasonic reverse osmosis membrane cleaning device as described in claim 8, characterized in that, The mounting base (10) is also equipped with a control cabinet (8), which contains a controller. The controller is electrically connected to the ultrasonic generator (6) and the circulating pump (7).

10. The ultrasonic reverse osmosis membrane cleaning device as described in claim 9, characterized in that, At least one drain valve is provided on the bottom side of the cleaning tank (4).

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