Immersed membrane cleaning device

Abstract

The utility model discloses an immersed membrane cleaning device which comprises an outer frame, a cleaning water tank is fixedly connected to the inner bottom wall of the outer frame, heaters are fixedly connected to the inner walls of the front face and the back face of the cleaning water tank, and an installation table is fixedly connected to the inner bottom wall of the outer frame. A first chemical cleaning water pump and a second chemical cleaning water pump are sequentially and fixedly connected to the upper surface of the mounting table from left to right, and a first liquid pumping pipe is fixedly connected to one end of the first chemical cleaning water pump. A cleaning water tank, a heater, a chemical storage tank, a dosing pump, a chemical cleaning water pump, a control valve, a PLC (programmable logic controller) and an electrical cabinet are arranged in the cleaning device, the cleaning device is formed by integrating all parts and can be prefabricated in a factory, when the cleaning device is put into use on site, the cleaning device can be put into use only by being connected with a pipeline, and the size of a film workshop can be reduced; no building needs to be built specially for equipment installation, and civil engineering cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, and in particular to a cleaning device for an immersion membrane. Background Technology

[0002] Submerged ultrafiltration membrane treatment technology has certain advantages in the field of water treatment. After a period of operation, chemical cleaning is required. The usual practice is to build chemical cleaning rooms, blower rooms and other buildings specifically for equipment installation during the construction process, which is relatively expensive and has a long construction period.

[0003] Therefore, based on the above problems, there is a need for an integrated cleaning device that uses factory prefabrication and pipe connection, eliminating the need to build a separate building for the installation of the equipment, and uses an immersion membrane. Utility Model Content

[0004] The main objective of this invention is to provide a cleaning device for immersion membranes, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A cleaning device for an immersion membrane includes an outer frame. A cleaning water tank is fixedly connected to the inner bottom wall of the outer frame. Heaters are fixedly connected to the inner walls of the front and back of the cleaning water tank. An installation platform is fixedly connected to the inner bottom wall of the outer frame. A first chemical cleaning water pump and a second chemical cleaning water pump are fixedly connected sequentially from left to right on the upper surface of the installation platform. A first liquid extraction pipe is fixedly connected to one end of the first chemical cleaning water pump, and a second liquid extraction pipe is fixedly connected to one end of the second chemical cleaning water pump. Chemical cleaning pipes are fixedly connected to the outlet ends of both the first and second chemical cleaning water pumps.

[0007] In order to achieve the effect of storing various chemicals, as a cleaning device for an immersion membrane of this utility model, the inner bottom wall of the outer frame is fixedly connected from left to right with a sodium hypochlorite storage tank, a hydrochloric acid storage tank, a citric acid storage tank, a sodium hydroxide storage tank and a sodium bisulfite storage tank.

[0008] In order to facilitate the replenishment of water in the cleaning tank, as a cleaning device for an immersion membrane according to this utility model, a water replenishment pneumatic butterfly valve is fixedly connected to one side of the cleaning tank, and a water replenishment inlet pipe is fixedly connected to one end of the water replenishment pneumatic butterfly valve.

[0009] In order to facilitate the emptying of the liquid in the cleaning tank, as a cleaning device for an immersion membrane according to this utility model, a first venting butterfly valve is fixedly connected to one side of the cleaning tank, and a first venting pipe is fixedly connected to one end of the first venting butterfly valve.

[0010] In order to achieve the effect of controlling the opening and closing of the pipeline, as a cleaning device for an immersion membrane of this utility model, the upper surface of the sodium hypochlorite storage tank, hydrochloric acid storage tank, citric acid storage tank, sodium hydroxide storage tank and sodium bisulfite storage tank are all fixedly connected with a top cover, and the upper surface of the top cover is fixedly connected with a pneumatic butterfly valve for the tank.

[0011] To facilitate the addition of corresponding chemicals to the storage tank, as a cleaning device for an immersion membrane according to this utility model, a dosing pump is fixedly connected to the upper surface of the top cover, a liquid delivery pipe is fixedly connected to one end of the dosing pump, and a liquid addition pipe is fixedly connected to the other end of the dosing pump.

[0012] In order to achieve the effect of venting the chemicals in the storage tank, as a cleaning device for an immersion membrane of this utility model, a second venting valve is fixedly connected to the bottom of the outer surface of the sodium hypochlorite storage tank, hydrochloric acid storage tank, citric acid storage tank, sodium hydroxide storage tank and sodium bisulfite storage tank, and a second venting pipe is fixedly connected to one end of the second venting valve.

[0013] To facilitate employee access to the outer frame, as a cleaning device for an immersion membrane according to this utility model, an electrical cabinet is fixedly connected to the inner bottom wall of the outer frame, a PLC is fixedly connected to one side of the electrical cabinet, and a front door is hinged to the front of the outer frame, with a handle groove on the front of the front door.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The cleaning device for this submersible membrane is configured with an outer frame, a cleaning water tank, a heater, an installation platform, a first chemical cleaning water pump, a first extraction pipe, a second chemical cleaning water pump, a second extraction pipe, and chemical cleaning pipelines. The outer frame is in the shape of a shipping container, and its interior is equipped with a cleaning water tank, a heater, a chemical storage tank, a chemical dosing pump, a chemical cleaning water pump, control valves, a PLC, and an electrical cabinet. Because this cleaning device is an integrated unit, it can be prefabricated in the factory. When put into use on site, it only needs to be connected to the pipeline. It can also reduce the size of the membrane workshop, eliminating the need to build a separate building for equipment installation and saving civil engineering costs.

[0016] 2. The cleaning device for the submerged membrane, through the setup of a cleaning water tank, heater, first chemical cleaning water pump, first extraction pipe, second chemical cleaning water pump, second extraction pipe, chemical cleaning pipeline, sodium hypochlorite storage tank, hydrochloric acid storage tank, citric acid storage tank, sodium hydroxide storage tank, and sodium bisulfite storage tank, firstly, sufficient submerged membrane permeate is stored in the cleaning water tank. The water is heated (to 35-40°C) by the heater. The first and second chemical cleaning water pumps are used to extract the liquid through the first and second extraction pipes. The submerged membrane permeate and various chemicals are mixed online through the chemical cleaning pipeline and then enter the selected membrane tank. After cleaning, the solution is discharged to the original wastewater neutralization tank of the water supply plant. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a cleaning device for an immersion membrane according to Embodiment 1 of this utility model;

[0018] Figure 2 This is a rear-view axonometric structural schematic diagram of a cleaning device for an immersion membrane according to Embodiment 1 of this utility model;

[0019] Figure 3 This is an isometric structural diagram of the removal of the outer frame in a cleaning device for an immersion membrane according to Embodiment 1 of this utility model;

[0020] Figure 4 This is an isometric structural diagram of the mounting platform in a cleaning device for an immersion membrane according to Embodiment 1 of this utility model.

[0021] Figure 5 This is an isometric structural diagram of the medicine storage tank in a cleaning device for an immersion membrane according to Embodiment 1 of this utility model.

[0022] In the diagram: 1. Outer frame; 2. Cleaning water tank; 3. Heater; 4. Mounting platform; 5. First chemical cleaning water pump; 6. First extraction pipe; 7. Second chemical cleaning water pump; 8. Second extraction pipe; 9. Chemical cleaning pipeline; 10. Sodium hypochlorite storage tank; 11. Hydrochloric acid storage tank; 12. Citric acid storage tank; 13. Sodium hydroxide storage tank; 14. Sodium bisulfite storage tank; 15. Water replenishment pneumatic butterfly valve; 16. Water replenishment inlet pipe; 17. First venting pneumatic butterfly valve; 18. First vent pipe; 19. Top cover; 20. Medicine tank pneumatic butterfly valve; 21. Dosing pump; 22. Liquid filling pipe; 23. Liquid delivery pipe; 24. Second venting pneumatic butterfly valve; 25. Second vent pipe; 26. Electrical cabinet; 27. PLC; 28. Front door; 29. ​​Handle slot. 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. Example

[0024] like Figure 1-5 As shown, a cleaning device for an immersion membrane includes an outer frame 1. A cleaning water tank 2 is fixedly connected to the inner bottom wall of the outer frame 1. Heaters 3 are fixedly connected to the inner walls of the front and back of the cleaning water tank 2. An installation platform 4 is fixedly connected to the inner bottom wall of the outer frame 1. A first chemical cleaning water pump 5 and a second chemical cleaning water pump 7 are fixedly connected from left to right on the upper surface of the installation platform 4. A first liquid extraction pipe 6 is fixedly connected to one end of the first chemical cleaning water pump 5, and a second liquid extraction pipe 8 is fixedly connected to one end of the second chemical cleaning water pump 7. Chemical cleaning pipes 9 are fixedly connected to the outlet ends of both the first chemical cleaning water pump 5 and the second chemical cleaning water pump 7.

[0025] In practical use, the system consists of an outer frame 1, a cleaning water tank 2, a heater 3, a mounting platform 4, a first chemical cleaning water pump 5, a first extraction pipe 6, a second chemical cleaning water pump 7, a second extraction pipe 8, and a chemical cleaning pipeline 9. The outer frame 1 has the shape of a container, and its interior is equipped with a cleaning water tank 2, a heater 3, a chemical storage tank, a chemical dosing pump 21, a chemical cleaning water pump, control valves, a PLC 27, and an electrical cabinet 26. Because this cleaning device is an integrated system of various components, it can be prefabricated in the factory. When put into use on site, it only needs to be connected to the pipeline to be put into use. It can also reduce the size of the membrane workshop and eliminate the need to build a building specifically for equipment installation, thus saving civil engineering costs.

[0026] In this embodiment, the inner bottom wall of the outer frame 1 is fixedly connected from left to right to a sodium hypochlorite storage tank 10, a hydrochloric acid storage tank 11, a citric acid storage tank 12, a sodium hydroxide storage tank 13, and a sodium bisulfite storage tank 14.

[0027] In practical use, various chemicals are stored by setting up sodium hypochlorite storage tank 10, hydrochloric acid storage tank 11, citric acid storage tank 12, sodium hydroxide storage tank 13 and sodium bisulfite storage tank 14.

[0028] In this embodiment, a water replenishment pneumatic butterfly valve 15 is fixedly connected to one side of the cleaning water tank 2, and a water replenishment inlet pipe 16 is fixedly connected to one end of the water replenishment pneumatic butterfly valve 15.

[0029] In practical use, the water inlet pipe 16 facilitates the replenishment of water into the cleaning water tank 2.

[0030] In this embodiment, a first venting butterfly valve 17 is fixedly connected to one side of the cleaning water tank 2, and a first venting pipe 18 is fixedly connected to one end of the first venting butterfly valve 17.

[0031] In practical use, the liquid in the cleaning water tank 2 can be easily emptied through the first vent pipe 18.

[0032] In this embodiment, the upper surfaces of the sodium hypochlorite storage tank 10, hydrochloric acid storage tank 11, citric acid storage tank 12, sodium hydroxide storage tank 13, and sodium bisulfite storage tank 14 are all fixedly connected with top covers 19, and the upper surface of the top cover 19 is fixedly connected with a pneumatic butterfly valve 20.

[0033] In practical use, the opening and closing of the pipeline is controlled by setting the pneumatic butterfly valve 20 of the medicine tank.

[0034] In this embodiment, a dosing pump 21 is fixedly connected to the upper surface of the top cover 19, a liquid delivery pipe 23 is fixedly connected to one end of the dosing pump 21, and a liquid addition pipe 22 is fixedly connected to the other end of the dosing pump 21.

[0035] In practical use, the dosing pump 21 allows for convenient addition of the corresponding chemicals to the storage tank.

[0036] In this embodiment, a second venting butterfly valve 24 is fixedly connected to the bottom of the outer surface of the sodium hypochlorite storage tank 10, hydrochloric acid storage tank 11, citric acid storage tank 12, sodium hydroxide storage tank 13, and sodium bisulfite storage tank 14, and a second venting pipe 25 is fixedly connected to one end of the second venting butterfly valve 24.

[0037] In practical use, the chemicals in the storage tank are vented through the second vent pipe 25.

[0038] In this embodiment, an electrical cabinet 26 is fixedly connected to the inner bottom wall of the outer frame 1, a PLC 27 is fixedly connected to one side of the electrical cabinet 26, and a front door 28 is hinged to the front of the outer frame 1. A handle groove 29 is provided on the front of the front door 28.

[0039] In practical use, the front door 28 allows employees to easily enter the outer frame 1.

[0040] Working principle: First, sufficient submerged membrane permeate is stored in the cleaning water tank 2. The water is heated by the heater 3 (the water temperature is heated to 35-40°C). The liquid is extracted by the first chemical cleaning water pump 5 and the second chemical cleaning water pump 7 through the first liquid extraction pipe 6 and the second liquid extraction pipe 8. The submerged membrane permeate and various chemicals are mixed online through the chemical cleaning pipeline 9 and then enter the selected membrane tank. After cleaning, the solution is discharged to the original wastewater neutralization tank of the water supply plant.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cleaning device for an immersion membrane, comprising an outer frame (1), characterized in that: A cleaning water tank (2) is fixedly connected to the inner bottom wall of the outer frame (1). A heater (3) is fixedly connected to the inner walls of the front and back sides of the cleaning water tank (2). An installation platform (4) is fixedly connected to the inner bottom wall of the outer frame (1). A first chemical cleaning water pump (5) and a second chemical cleaning water pump (7) are fixedly connected to the upper surface of the installation platform (4) from left to right. A first liquid extraction pipe (6) is fixedly connected to one end of the first chemical cleaning water pump (5). A second liquid extraction pipe (8) is fixedly connected to one end of the second chemical cleaning water pump (7). Chemical cleaning pipes (9) are fixedly connected to the outlet ends of the first chemical cleaning water pump (5) and the second chemical cleaning water pump (7).

2. The immersion membrane cleaning device according to claim 1, characterized in that: The inner bottom wall of the outer frame (1) is fixedly connected from left to right to a sodium hypochlorite storage tank (10), a hydrochloric acid storage tank (11), a citric acid storage tank (12), a sodium hydroxide storage tank (13), and a sodium bisulfite storage tank (14).

3. The immersion membrane cleaning device according to claim 1, characterized in that: A water replenishment pneumatic butterfly valve (15) is fixedly connected to one side of the cleaning water tank (2), and a water replenishment inlet pipe (16) is fixedly connected to one end of the water replenishment pneumatic butterfly valve (15).

4. The immersion membrane cleaning device according to claim 1, characterized in that: A first venting butterfly valve (17) is fixedly connected to one side of the cleaning water tank (2), and a first venting pipe (18) is fixedly connected to one end of the first venting butterfly valve (17).

5. The immersion membrane cleaning device according to claim 2, characterized in that: The upper surfaces of the sodium hypochlorite storage tank (10), hydrochloric acid storage tank (11), citric acid storage tank (12), sodium hydroxide storage tank (13) and sodium bisulfite storage tank (14) are all fixedly connected with top covers (19), and the upper surface of the top cover (19) is fixedly connected with a pneumatic butterfly valve (20).

6. The immersion membrane cleaning device according to claim 5, characterized in that: A dosing pump (21) is fixedly connected to the upper surface of the top cover (19). One end of the dosing pump (21) is fixedly connected to a liquid delivery pipe (23), and the other end of the dosing pump (21) is fixedly connected to a liquid delivery pipe (22).

7. The immersion membrane cleaning device according to claim 2, characterized in that: The bottom of the outer surface of the sodium hypochlorite storage tank (10), hydrochloric acid storage tank (11), citric acid storage tank (12), sodium hydroxide storage tank (13) and sodium bisulfite storage tank (14) are all fixedly connected with a second venting butterfly valve (24), and one end of the second venting butterfly valve (24) is fixedly connected with a second venting pipe (25).

8. The cleaning device for an immersion membrane according to claim 1, characterized in that: An electrical cabinet (26) is fixedly connected to the inner bottom wall of the outer frame (1), and a PLC (27) is fixedly connected to one side of the electrical cabinet (26). A front door (28) is hinged to the front of the outer frame (1) via a hinge, and a handle groove (29) is provided on the front of the front door (28).

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