Reverse osmosis membrane cleaning system

Abstract

The utility model relates to a reverse osmosis membrane cleaning system, which belongs to the field of reverse osmosis membrane cleaning and comprises a mixing box and a cleaning box, the mixing box is communicated with the cleaning box, a water outlet at the bottom of the mixing box is connected with a water inlet at the top of the cleaning box, and the mixing box is used for mixing cleaning water and chemicals and then inputting the mixture into the cleaning box through a first water pump. The cleaning box is further connected with a water inlet of the reverse osmosis membrane through a cleaning pipeline, a second water pump is arranged on the cleaning pipeline, through the arranged mixing box, primary mixing of cleaning liquid medicine can be conducted, then the mixed liquid medicine is transferred into the cleaning box, the prepared cleaning liquid medicine is used for cleaning the reverse osmosis membrane in the cleaning box, and therefore the reverse osmosis membrane is cleaned more thoroughly. During operation of the system, a plurality of water pumps are used for conveying liquid, so that the problems of high manual participation degree and high labor intensity in the chemical cleaning process are solved.

Description

Technical Field

[0001] This utility model belongs to the field of reverse osmosis membrane cleaning, and specifically relates to a reverse osmosis membrane cleaning system. Background Technology

[0002] A reverse osmosis membrane is an artificial semi-permeable membrane with specific properties, mimicking a biological semi-permeable membrane. It is the core component of reverse osmosis technology. The principle of reverse osmosis is that, under pressure higher than the osmotic pressure of the solution, other substances cannot pass through the semi-permeable membrane, thus separating them from water.

[0003] In practical use, reverse osmosis membranes are subject to various contaminants, such as microorganisms, oxides, and corrosive substances. Regular cleaning can effectively prevent membrane fouling. If cleaning is not performed for a long time, the surface fouling of the membrane will become increasingly serious. When it reaches a certain point, the membrane needs to be replaced, which increases maintenance costs. Regular cleaning can prevent this from happening, save costs, and extend service life. In summary, cleaning reverse osmosis membranes is of great significance for maintaining water quality stability, increasing water production, and reducing maintenance costs.

[0004] After a reverse osmosis membrane system has been running for a certain period, fouling can occur on the membrane surface due to concentration polarization, clogging the membrane and causing a decrease in permeate flow, thus affecting the performance of the reverse osmosis membrane. In this case, cleaning the reverse osmosis membrane module is necessary to restore its performance. Reverse osmosis membranes can be contaminated by inorganic fouling, colloids, microorganisms, metal oxides, etc. These substances deposit on the membrane surface, causing a decrease in permeate flow and desalination rate. Therefore, chemical cleaning of the reverse osmosis membrane system is required to restore permeate flow and desalination performance. However, the chemical cleaning process for conventional reverse osmosis membrane systems involves a high degree of manual intervention and is labor-intensive. Utility Model Content

[0005] This invention addresses the problems in the prior art by providing a reverse osmosis membrane cleaning system, which solves the problems of high manual involvement and high labor intensity in the chemical cleaning process of conventional reverse osmosis membrane systems in the prior art.

[0006] The technical solution adopted in this utility model is as follows:

[0007] This application provides a reverse osmosis membrane cleaning system, including a mixing tank and a cleaning tank. The mixing tank and the cleaning tank are connected. The cleaning tank is connected to the reverse osmosis membrane inlet through a cleaning pipe, and the reverse osmosis membrane outlet is connected to the mixing tank.

[0008] The cleaning tank is equipped with a liquid equalization component, which includes a liquid equalization plate horizontally fixed to the inner wall of the cleaning tank and several liquid equalization pipes. Several liquid equalization holes are evenly distributed on the liquid equalization plate, and the number of liquid equalization pipes is the same as the number of liquid equalization holes and they are connected to each other in a one-to-one correspondence.

[0009] The cleaning tank is equipped with a stirring assembly, which includes a drive unit and a stirring unit. In this embodiment, the drive unit is a stirring motor, which is located on the bottom surface of the cleaning tank. The stirring unit includes a rotating shaft and a stirring component. The rotating shaft is connected to the output shaft of the stirring motor. The stirring component includes three stirring frames of different sizes, all of which are fixed on the rotating shaft.

[0010] As a preferred option, filters are also installed on the cleaning pipes.

[0011] As a preferred option, the filter is a particulate filter.

[0012] As a preferred embodiment, the mixing tank is connected to a reagent tank and a water tank, a third water pump is installed between the reagent tank and the mixing tank, and a fourth water pump is installed between the water tank and the mixing tank.

[0013] As a preferred option, flow meters are installed between the reagent tank and the mixing tank, and between the water tank and the mixing tank.

[0014] As a preferred option, a concentration sensor is installed inside the mixing tank to detect the concentration of the cleaning agent in the liquid within the mixing tank.

[0015] As a preferred option, the cleaning tank is equipped with a circulation pipe, with both ends of the circulation pipe located on the cleaning tank, and a fifth water pump is installed on the circulation pipe.

[0016] As a preferred embodiment, a mixing tank is used to mix cleaning water and chemicals and then pass them through a first water pump, while a second water pump is installed on the cleaning pipeline.

[0017] As can be seen from the above technical solution, this utility model has the following advantages: the mixing tank can be used to perform preliminary mixing of the cleaning solution, and then the mixed solution is transferred to the cleaning tank. The cleaning solution is used to clean the reverse osmosis membrane. The system uses several water pumps for liquid transportation during operation, which solves the problems of high manual participation and high labor intensity in the chemical cleaning process. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description 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.

[0019] Figure 1 This is a schematic diagram of the structure in a specific embodiment of the present utility model.

[0020] Figure 2 This is a cross-sectional view of the cleaning tank in a specific embodiment of this utility model.

[0021] The components include: 1. Mixing tank; 2. Cleaning tank; 3. First water pump; 4. Cleaning pipe; 5. Reverse osmosis membrane; 6. Particulate filter; 7. Chemical tank; 8. Water tank; 9. Third water pump; 10. Fourth water pump; 11. Flow meter; 12. Concentration sensor; 13. Circulation pipe; 14. Fifth water pump; 15. Second water pump; 16. Equalization plate; 17. Equalization hole; 18. Equalization pipe; 19. Stirring motor; 20. Rotating shaft; 21. Stirring frame. Detailed Implementation

[0022] Various embodiments of this disclosure will be described more fully in the following detailed description. This disclosure may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of this disclosure to the specific embodiments disclosed herein, but rather this disclosure should be understood to cover all adjustments, equivalents, and / or alternatives falling within the spirit and scope of the various embodiments of this disclosure.

[0023] Example:

[0024] like Figure 1 and Figure 2 As shown, this embodiment provides a cleaning system for a reverse osmosis membrane 5, including a mixing tank 1 and a cleaning tank 2. The mixing tank 1 and the cleaning tank 2 are connected, with the outlet at the bottom of the mixing tank 1 connected to the inlet at the top of the cleaning tank 2. The mixing tank 1 is used to mix cleaning water and chemicals, which are then pumped into the cleaning tank 2 by a first water pump 3. The cleaning tank 2 is also connected to the inlet of the reverse osmosis membrane 5 via a cleaning pipe 4. A second water pump 15 is installed on the cleaning pipe 4. When chemical cleaning of the reverse osmosis membrane 5 is required, the second water pump 15 is turned on, and the second water pump 15 pumps the cleaning solution. The cleaning solution is supplied to the inlet of the reverse osmosis membrane 5. The first and second outlets of the reverse osmosis membrane 5 are both connected to the mixing tank 1 to transfer the cleaned solution back to the mixing tank 1 for reuse. With this setup, the cleaning solution can be initially mixed through the mixing tank 1. The mixed solution is then transferred to the cleaning tank 2, where the prepared cleaning solution is used to clean the reverse osmosis membrane 5. The system uses several water pumps for liquid transport during operation, which solves the problems of high manual involvement and high labor intensity in the chemical cleaning process.

[0025] In this embodiment, a liquid equalization assembly is provided inside the cleaning tank 2. The liquid equalization assembly includes a liquid equalization plate 16 horizontally fixed to the inner wall of the cleaning tank 2 and a plurality of liquid equalization pipes 18. A plurality of liquid equalization holes 17 are evenly distributed on the liquid equalization plate 16. The number of liquid equalization pipes 18 is the same as the number of liquid equalization holes and they are connected in a one-to-one correspondence.

[0026] In this embodiment, the cleaning tank is also provided with a stirring assembly, which includes a driving unit and a stirring unit. In this embodiment, the driving unit is a stirring motor 19, which is located on the bottom surface of the cleaning tank 2. The stirring unit includes a rotating shaft 20 and a stirring component. The rotating shaft 20 is connected to the output shaft of the stirring motor 19. The stirring component includes three stirring frames 21 of different sizes, and all three stirring frames 21 are fixed on the rotating shaft 20.

[0027] A filter is also installed on the cleaning pipe 4. In this embodiment, the filter is a liquid particulate filter 6.

[0028] In this embodiment, the mixing tank 1 is connected to the reagent tank 7 and the water tank 8. A third water pump 9 is provided between the reagent tank 7 and the mixing tank 1, and a fourth water pump 10 is provided between the water tank 8 and the mixing tank 1.

[0029] In this embodiment, flow meters 11 are installed between the reagent tank 7 and the mixing tank 1, and between the water tank 8 and the mixing tank 1.

[0030] In this embodiment, a concentration sensor 12 is installed in the mixing tank 1. The concentration sensor 12 is used to detect the concentration of the cleaning agent in the liquid in the mixing tank 1. When the concentration sensor 12 detects that the concentration of the liquid is within a preset range, the first water pump 3 is turned on. Otherwise, the first water pump 3 is turned off. This setting can further ensure the concentration of the liquid in the cleaning tank 2 and improve the cleaning effect on the reverse osmosis membrane 5.

[0031] In this embodiment, a circulation pipe 13 is provided on the cleaning tank 2, with both ends of the circulation pipe 13 being provided on the cleaning tank 2, and a fifth water pump 14 is provided on the circulation pipe 13.

[0032] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] The foregoing has described specific embodiments of this specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than that shown in the embodiments and may still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require the specific or sequential order shown to achieve the desired result. In some embodiments, multitasking and parallel processing are possible or may be advantageous.

[0034] The terminology used in one or more embodiments of this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of one or more embodiments of this specification. The singular forms “a,” “described,” and “the” used in one or more embodiments of this specification and in the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0035] It should be understood that although the terms first, second, third, etc., may be used to describe various information in one or more embodiments of this specification, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of one or more embodiments of this specification, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "in response to a determination," or "when," or "in the event of a determination."

[0036] The above description is merely a preferred embodiment of one or more embodiments of this specification and is not intended to limit the scope of one or more embodiments of this specification. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification should be included within the scope of protection of one or more embodiments of this specification.

Claims

1. A cleaning system for a reverse osmosis membrane, characterized in that, It includes a mixing tank (1) and a cleaning tank (2). The mixing tank (1) is connected to the cleaning tank (2). The cleaning tank (2) is connected to the inlet of the reverse osmosis membrane (5) through a cleaning pipe (4). The outlet of the reverse osmosis membrane (5) is connected to the mixing tank (1). The cleaning tank (2) is equipped with a liquid equalization component. The liquid equalization component includes a liquid equalization plate (16) horizontally fixed to the inner wall of the cleaning tank (2) and several liquid equalization pipes (18). Several liquid equalization holes (17) are evenly distributed on the liquid equalization plate (16). The number of liquid equalization pipes (18) is the same as the number of liquid equalization holes and they are connected in a one-to-one correspondence. The cleaning tank (2) is equipped with a stirring assembly, which includes a drive unit and a stirring unit. The drive unit is a stirring motor (19), which is located on the bottom surface of the cleaning tank (2). The stirring unit includes a rotating shaft (20) and a stirring component. The rotating shaft (20) is connected to the output shaft of the stirring motor (19). The stirring component includes three stirring frames (21) of different sizes, which are all fixed on the rotating shaft (20).

2. The reverse osmosis membrane cleaning system according to claim 1, characterized in that, A filter is also installed on the cleaning pipe (4).

3. The reverse osmosis membrane cleaning system according to claim 2, characterized in that, The filter is a particulate filter (6).

4. The reverse osmosis membrane cleaning system according to claim 1, characterized in that, The mixing tank (1) is connected to the reagent tank (7) and the water tank (8). A third water pump (9) is installed between the reagent tank (7) and the mixing tank (1), and a fourth water pump (10) is installed between the water tank (8) and the mixing tank (1).

5. The reverse osmosis membrane cleaning system according to claim 4, characterized in that, A flow meter (11) is installed between the reagent tank (7) and the mixing tank (1), and between the water tank (8) and the mixing tank (1).

6. The reverse osmosis membrane cleaning system according to claim 1, characterized in that, A concentration sensor (12) is installed inside the mixing tank (1). The concentration sensor (12) is used to detect the concentration of the cleaning agent in the liquid inside the mixing tank (1).

7. The reverse osmosis membrane cleaning system according to claim 1, characterized in that, A circulation pipe (13) is provided on the cleaning tank (2), and both ends of the circulation pipe (13) are provided on the cleaning tank (2). A fifth water pump (14) is provided on the circulation pipe (13).

8. The reverse osmosis membrane cleaning system according to claim 1, characterized in that, The mixing tank (1) is used to mix the cleaning water and the agent and then pass them through the first water pump (3). The cleaning pipe (4) is equipped with a second water pump (15).

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