Modular submerged ultrafiltration water purification device

Abstract

A kind of modular submerged ultrafiltration water purification equipment, including frame, the bottom of frame is equipped with water inlet drain pipe, water inlet drain pipe side is provided with membrane module, water inlet drain pipe is connected with membrane module, the water inlet drain pipe top is provided with water production pump, dosing system and aeration fan, the other side is provided with water outlet drain pipe, frequency conversion water supply unit, clean water tank and control box, the water inlet of water production pump is connected with membrane module, the water outlet of water production pump is connected with water outlet drain pipe, the water outlet drain pipe one end is water outlet, the other end is sewage discharge port, water outlet is connected with clean water tank, clean water tank is connected with frequency conversion water supply unit, the dosing system is provided with dosing tank, dosing tank is equipped with dosing pump, dosing pump is connected with membrane module, water outlet drain pipe and water inlet drain pipe respectively, the aeration fan is connected with membrane module.The whole equipment structure is compact, greatly reduce the floor space of equipment, convenient transportation, convenient installation, to reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, specifically to a modular submersible ultrafiltration water purification device. Background Technology

[0002] Traditional ultrafiltration equipment suffers from problems such as large footprint, difficult transportation, low automation, and poor membrane fouling control, making it particularly unsuitable for space-constrained environments such as scenic spots and small communities. Existing equipment mostly adopts a split design, resulting in complex piping and frequent maintenance, which affects the stability of the effluent. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a modular submersible ultrafiltration water purification device to address the shortcomings of the existing technology.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A modular submersible ultrafiltration water purification device includes a frame, with an inlet and outlet pipe installed at the bottom of the frame. A membrane module is installed on one side of the inlet and outlet pipe, and the inlet and outlet pipe is connected to the membrane module. A product water pump, a dosing system, and an aeration fan are installed above the inlet and outlet pipe. An outlet and outlet pipe, a variable frequency water supply unit, a clean water tank, and a control box are installed on the other side. The inlet of the product water pump is connected to the membrane module, and the outlet of the product water pump is connected to the outlet and outlet pipe. One end of the outlet and outlet pipe is the outlet, and the other end is the wastewater discharge outlet. The outlet is connected to the clean water tank, and the clean water tank is connected to the variable frequency water supply unit. A dosing tank is installed on the dosing system, and a dosing pump is installed on the dosing tank. The dosing pump is connected to the membrane module, the outlet and outlet pipe, and the inlet and outlet pipe, respectively. The aeration fan is connected to the membrane module.

[0005] Furthermore, the inlet and outlet of the water inlet and sewage outlet pipe are provided with an inlet and a outlet, a control valve one is installed on the inlet pipe, a control valve two is installed on the outlet pipe, and a control valve three is installed on the outlet pipe of the water inlet and sewage outlet pipe.

[0006] Furthermore, the dosing system includes a first dosing tank and a second dosing tank. A first dosing pump is installed on the first dosing tank and is connected to the membrane module. A second dosing pump and a third dosing pump are installed on the second dosing tank. The second dosing pump is connected to the inlet of the inlet and outlet pipe, and the third dosing pump is connected to the outlet of the outlet pipe.

[0007] Furthermore, the membrane module is provided with a connecting pipe that connects to the drain outlet of the inlet and outlet pipes, and a manhole is provided on the frame above the membrane module.

[0008] Furthermore, a level gauge is installed on the dosing tank.

[0009] Furthermore, a control valve four and a flow meter are installed on the outlet pipe of the sewage discharge pipe, and a control valve five is installed on the sewage discharge outlet pipe.

[0010] Furthermore, the variable frequency water supply unit includes a main inlet pipe, which is connected to the outlet of the clean water tank via a first connector. A water pump assembly is connected to the main inlet pipe via a second connector. A branch outlet pipe is connected to the outlet of the water pump assembly via a third connector. The main outlet pipe is connected to a branch pipe 1 and a branch pipe 2 at its tail end. A pressure tank is connected to branch pipe 1 via a fourth connector, and an electromagnetic flow meter is connected to branch pipe 2 via a fifth connector.

[0011] Furthermore, a control valve six is ​​installed on the first connector, a control valve seven is installed on the second connector, a check valve and a control valve eight are installed on the third connector, and a control valve nine is installed on the fourth connector.

[0012] Compared with existing technologies, the modular submersible ultrafiltration water purification equipment of this utility model has a compact structure, which greatly reduces the space occupied by the equipment, facilitates transportation and installation, and thus reduces production costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a perspective view of the present invention; Figure 3 This is a schematic diagram of the structure of the water inlet and sewage outlet pipe of this utility model; Figure 4 This is a schematic diagram of the dosing system of this utility model; Figure 5 This is a schematic diagram of the structure of the water outlet and sewage pipe of this utility model; Figure 6 This is a schematic diagram of the structure of the variable frequency water supply unit of this utility model; The components include: 1. Frame; 2. Inlet and outlet pipes; 3. Membrane module; 4. Manhole; 5. Product water pump; 6. Dosing system; 7. Aeration blower; 8. Outlet and outlet pipe; 9. Variable frequency water supply unit; 10. Clear water tank; 11. Control box; 201. Inlet; 202. Outlet; 203. Control valve one; 204. Control valve two; 205. Control valve three; 2011. Inlet connector; 2021. Outlet connector; 611. First dosing tank; 612. Second dosing tank; 613. First dosing pump; 614. First level gauge; 615. Second dosing pump; 616. Third dosing pump; 617. Second level gauge; 811. Outlet... 8111, Outlet connector, 812, Sewage discharge outlet, 813, Control valve four, 814, Flow meter, 815, Control valve five, 911, Main inlet pipe, 912, First flexible connector, 913, Second flexible connector, 914, Pump assembly, 915, Outlet branch pipe, 916, Third flexible connector, 917, Main outlet pipe, 918, Branch pipe one, 919, Branch pipe two, 920, Fourth flexible connector, 921, Pressure tank, 922, Fifth flexible connector, 923, Electromagnetic flow meter, 926, Control valve six, 925, Control valve seven, 926, Check valve, 927, Control valve eight, 928, Control valve nine. Detailed Implementation

[0014] The technical solutions in the embodiments of this utility model will be clearly and completely described below.

[0015] like Figures 1-6 As shown, a modular submersible ultrafiltration water purification device includes a frame 1, which is welded from SUS304 steel pipes. SUS304 stamped steel plates are welded around the perimeter of the frame 1 to enclose the internal equipment. An inlet and outlet pipe 2 is installed at the bottom of the frame 1. A membrane module 3 is installed on one side of the inlet and outlet pipe 2. A manhole 4 is provided on the frame 1 above the membrane module 3 for easy installation and maintenance of the membrane module 3. The inlet and outlet pipe 2 is connected to the membrane module 3. The inlet of the sewage pipe 2 is provided with an inlet 201 and a drain outlet 202. The inlet 201 is connected to an external water source and sent into the membrane module 3. The membrane module 3 is provided with a connecting pipe that is connected to the drain outlet 202 of the inlet and sewage pipe 2. The waste liquid generated after the membrane module 3 is aerated and backwashed is discharged from the drain outlet 202 of the inlet and sewage pipe 2. The drain outlet 202 of the inlet and sewage pipe 2 is provided with a drain outlet connector 2021. The bottom of the membrane module 3 is connected to the drain outlet connector 2021 through a pipeline.

[0016] A control valve 203 is installed on the inlet pipe 201, a control valve 204 is installed on the outlet pipe 202, and a control valve 205 is installed on the outlet pipe of the inlet and outlet pipe 2. In this embodiment, the control valves 203 and 204 are electric butterfly valves, which control the opening and closing of the inlet pipe 201 and the outlet pipe 202 respectively. The control valve 205 is a manual butterfly valve, which controls the opening and closing of the inlet and outlet pipe 2.

[0017] Above the inlet and outlet pipe 2, there is a product water pump 5, a dosing system 6, and an aeration blower 7. On the other side, there is an outlet pipe 8, a variable frequency water supply unit 9, a clean water tank 10, and a control box 11. The inlet of the product water pump 5 is connected to the membrane module 3, and the outlet of the product water pump 5 is connected to the outlet pipe 8. The product water pump 5 sends the water filtered by the membrane module 3 into the outlet pipe 8. One end of the outlet pipe 8 is an outlet 811, and the other end is a sewage discharge outlet 812. The outlet 811 is connected to the clean water tank 10, and the clean water tank 10 is connected to the variable frequency water supply unit 9.

[0018] The dosing system 6 is equipped with a dosing tank, which is equipped with a dosing pump and a level gauge. The dosing pump is connected to the membrane module 3, the outlet drain pipe 8 and the inlet drain pipe 2, respectively, to add chemicals to the inlet and outlet of the membrane module 3.

[0019] In this embodiment, the dosing system 6 includes a first dosing tank 611 and a second dosing tank 612. The first dosing tank 611 stores citric acid solution. A first dosing pump 613 and a first level gauge 614 are installed on the first dosing tank 611. The first dosing pump 613 is connected to the membrane module 3 and injects citric acid solution into the membrane module 3 every 15-30 days to clean the membrane surface online. At the same time, the first level gauge 614 monitors the liquid level in the first dosing tank 611. The second dosing tank 612 stores sodium hypochlorite solution. A second dosing pump 615, a third dosing pump 616, and a second level gauge 617 are installed on the second dosing tank 612. The second dosing pump 615 is connected to the inlet... The inlet 201 of the water drain pipe 2 is connected to the third dosing pump 616, which is connected to the outlet 811 of the outlet drain pipe 8. The inlet 201 of the water drain pipe 2 is equipped with an inlet connector 2011. The second dosing pump 615 is connected to the inlet connector 2011 through a pipeline to add 0.5-1 mg / L food-grade sodium hypochlorite solution at the inlet end to degrade organic matter and inhibit algae. The outlet 811 of the outlet drain pipe 8 is equipped with an outlet connector 8111. The third dosing pump 616 is connected to the outlet connector 8111 through a pipeline to add chemicals at the product water end to ensure residual chlorine in the effluent and inhibit secondary pollution. At the same time, the liquid level in the second dosing tank 612 is monitored by the second liquid level gauge 617.

[0020] The outlet 811 of the sewage discharge pipe 8 is equipped with a control valve 813 and a flow meter 814, and the sewage discharge outlet 812 is equipped with a control valve 815. In this embodiment, the control valves 813 and 815 are electric ball valves used to control the opening and closing of the outlet 811 and the sewage discharge outlet 812. The flow meter 814 is a rotor flow meter used to display the water volume.

[0021] The variable frequency water supply unit 9 includes an inlet main pipe 911, which is connected to the outlet of the clean water tank 10 via a first flexible connector 912. A water pump assembly 914 is connected to the inlet main pipe 911 via a second flexible connector 913. A water outlet branch pipe 915 is connected to the outlet of the water pump assembly 914. The water outlet branch pipe 915 is connected to the outlet main pipe 917 via a third flexible connector 916. The tail of the outlet main pipe 917 is connected to a first branch pipe 918 and a second branch pipe 919. The first branch pipe 918 is connected to a pressure tank 921 via a fourth flexible connector 920. The second branch pipe 919 is connected to an electromagnetic flow meter 923 via a fifth flexible connector 922. In this embodiment, the variable frequency water supply unit 9 is equipped with two water pump assemblies 914, one of which is a standby water pump. When water is discharged from the outlet main pipe 91, the water pressure is controlled by the pressure tank 921 to ensure stable water output.

[0022] The first flexible joint 912 is equipped with a control valve 924, the second flexible joint 913 is equipped with a control valve 925, the third flexible joint 916 is equipped with a check valve 926 and a control valve 927, and the fourth flexible joint 920 is equipped with a control valve 928. In this embodiment, the control valves 924, 925, 927 and 928 are all manual butterfly valves used to control the opening and closing of the pipeline.

[0023] The aeration blower 7 is connected to the membrane module 3, and the aeration blower 7 automatically backwashes the membrane module 3 at regular intervals.

[0024] During use, raw water enters through inlet 201, while the dosing system 6 adds chemicals. Under the suction of the product water pump 5, purified water is formed through the ultrafiltration membrane in the membrane module 3. The dosing system 6 continues to add chemicals to the outlet 811 for disinfection. The disinfected water enters the clear water tank 10. Under the suction of the pump assembly 914 of the variable frequency water supply unit 9, the clear water is sequentially delivered to the user through the main outlet pipe 917.

[0025] During membrane backwashing, shut off the external inlet pump and product water pump 5, close control valve 1 203 and control valve 2 204, start aeration fan 7 for aeration for about 1-2 minutes, then shut off aeration fan 7, open control valve 2 204 for sewage discharge for about 30 seconds, then turn on the external inlet pump, close control valve 2 204, open control valve 1 203, and when the water level reaches the high level, turn on product water pump 5 for normal water production.

[0026] During backwashing and chemical cleaning, it is generally turned on once every 15-30 days. The working principle is basically the same as membrane backwashing. The program is set, and the first dosing pump 613 of the dosing system 6 is started to inject a certain amount of food-grade citric acid solution and aerate for about 30 seconds. After stopping aeration, soak for 30-60 minutes, and intermittent aeration during this period to enhance the cleaning effect. Then, control valve 204 is opened to discharge sewage for about 30 seconds. Then, the external water inlet pump is turned on, control valve 204 is closed, control valve 1 is opened, and when the water level reaches the high level, the aeration fan 7 is turned on to perform physical flushing to remove chemical residue. The product water pump 5 is turned on, the outlet 811 is closed, and the sewage discharge port 812 is opened to discharge sewage. After that, the equipment operates normally.

[0027] During restorative chemical washing, the working principle is the same as that of backwashing with added chemicals. The difference is that restorative chemical washing is generally done every 3-6 months, and the soaking time is 2-4 hours, which will not be elaborated here.

[0028] This utility model is not limited to the embodiments described. Those skilled in the art can still make some modifications or changes without departing from the spirit and scope of this utility model. Therefore, the scope of protection of this utility model shall be determined by the scope defined in the claims.

Claims

1. A modular submersible ultrafiltration water purification device, characterized in that: The system includes a frame, with an inlet and outlet pipe installed at the bottom. A membrane module is installed on one side of the inlet and outlet pipe, and the inlet and outlet pipe is connected to the membrane module. A product water pump, a chemical dosing system, and an aeration fan are installed above the inlet and outlet pipe. An outlet and outlet pipe, a variable frequency water supply unit, a clean water tank, and a control box are installed on the other side. The inlet of the product water pump is connected to the membrane module, and the outlet of the product water pump is connected to the outlet and outlet pipe. One end of the outlet and outlet pipe is the outlet, and the other end is the wastewater discharge outlet. The outlet is connected to the clean water tank, and the clean water tank is connected to the variable frequency water supply unit. The chemical dosing system has a chemical dosing tank, and a chemical dosing pump is installed on the chemical dosing tank. The chemical dosing pump is connected to the membrane module, the outlet and outlet pipes, and the inlet and outlet pipes, respectively. The aeration fan is connected to the membrane module.

2. The modular submersible ultrafiltration water purification device according to claim 1, characterized in that: The inlet and outlet of the water inlet and sewage outlet pipe are provided with an inlet and a outlet. A control valve one is installed on the inlet pipe, a control valve two is installed on the outlet pipe, and a control valve three is installed on the outlet pipe.

3. The modular submersible ultrafiltration water purification device according to claim 2, characterized in that: The dosing system includes a first dosing tank and a second dosing tank. A first dosing pump is installed on the first dosing tank and is connected to the membrane module. A second dosing pump and a third dosing pump are installed on the second dosing tank. The second dosing pump is connected to the inlet of the inlet and outlet pipe, and the third dosing pump is connected to the outlet of the outlet pipe.

4. The modular submersible ultrafiltration water purification device according to claim 2, characterized in that: The membrane module is provided with a connecting pipe that connects to the drain outlet of the inlet and outlet pipes, and a manhole is provided on the frame above the membrane module.

5. A modular submersible ultrafiltration water purification device according to claim 1, characterized in that: The dosing tank is equipped with a level gauge.

6. A modular submersible ultrafiltration water purification device according to claim 1, characterized in that: The outlet pipe of the sewage discharge pipe is equipped with a control valve four and a flow meter, and the sewage discharge outlet pipe is equipped with a control valve five.

7. The modular submersible ultrafiltration water purification device according to claim 1, characterized in that: The variable frequency water supply unit includes a main inlet pipe, which is connected to the outlet of the clean water tank via a first connector. A water pump assembly is connected to the main inlet pipe via a second connector. A branch outlet pipe is connected to the outlet of the water pump assembly via a third connector. The main outlet pipe is connected to a branch pipe 1 and a branch pipe 2 at the end of the main outlet pipe. A pressure tank is connected to the branch pipe 1 via a fourth connector, and an electromagnetic flow meter is connected to the branch pipe 2 via a fifth connector.

8. A modular submersible ultrafiltration water purification device according to claim 7, characterized in that: The first connector is equipped with control valve six, the second connector is equipped with control valve seven, the third connector is equipped with check valve and control valve eight, and the fourth connector is equipped with control valve nine.

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