Integrated pressure type immersion ultrafiltration membrane water purification equipment

Abstract

The utility model discloses integrated pressure type water purification equipment with an immersed ultrafiltration membrane, and belongs to the technical field of water purification equipment. The integrated pressure type immersion ultrafiltration membrane water purification equipment comprises a tank body, a sodium hypochlorite generator and a backwashing water tank, an ultrafiltration membrane assembly is arranged in the middle in the tank body, a high-pressure water inlet structure is arranged on the lower portion of the tank body, a water drainage structure is arranged on the upper portion of the tank body, and the ultrafiltration membrane assembly comprises a hollow fiber membrane and a mounting plate. The mounting plate is fixedly arranged on the inner wall of the tank body, and the hollow fiber membrane is fixedly mounted on the mounting plate; according to the utility model, the high-pressure water inlet structure is arranged at the lower part of the tank body, so that water can flow from bottom to top after entering the tank body, the water is pressurized, and the flux of the water passing through the ultrafiltration membrane assembly is improved, thereby solving the problem of general working efficiency when immersed ultrafiltration equipment is used in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification equipment, in particular to an integrated pressure-type immersed ultrafiltration membrane water purification equipment. Background Art

[0002] Ultrafiltration is a membrane separation technology that can purify and separate solutions. The ultrafiltration membrane system is a solution separation device that uses ultrafiltration membrane fibers as filtration media and the pressure difference on both sides of the membrane as the driving force. The ultrafiltration membrane only allows solvents (such as water molecules), inorganic salts and small molecular organic matter in the solution to pass through, while intercepting macromolecular substances such as suspended matter, colloids, proteins and microorganisms in the solution, thereby achieving the purpose of purification or separation.

[0003] When purifying water, immersed ultrafiltration equipment is often used to purify and filter water. Immersed ultrafiltration is a new technology process that uses membrane components to replace the secondary sedimentation tank in the traditional process for solid and liquid phase separation. The immersed ultrafiltration water purification equipment in the prior art generally directly places a curtain-type hollow fiber membrane in a water tank or pool for water purification. When water passes through the hollow fiber membrane, it only relies on the natural pressure of the water, and its working efficiency is limited, so it needs to be improved. Utility Model Content

[0004] The utility model aims to solve the problem of general working efficiency of immersed ultrafiltration equipment in the prior art, and proposes an integrated pressure immersed ultrafiltration membrane water purification equipment.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The integrated pressure-type immersed ultrafiltration membrane water purification equipment comprises a tank body, a sodium hypochlorite generator and a backwash water tank, wherein an ultrafiltration membrane assembly is arranged in the middle of the tank body, a high-pressure water inlet structure is arranged at the lower part of the tank body, and a drainage structure is arranged at the upper part.

[0007] Preferably, the ultrafiltration membrane assembly comprises a hollow fiber membrane and a mounting plate, wherein the mounting plate is fixedly arranged on the inner wall of the tank body, and the hollow fiber membrane is fixedly mounted on the mounting plate.

[0008] Preferably, the high-pressure water inlet structure includes a high-pressure water pump and a liquid inlet pipe, one end of the liquid inlet pipe is connected to the lower part of the tank body, and the other end is connected to the water source to be treated through the high-pressure water pump.

[0009] Preferably, the drainage structure includes a water production pipe, one end of which is connected to the upper part of the tank body, and the other end of which is connected to the clean water collection box.

[0010] Preferably, the outlet end of the backwash pipe of the backwash water tank is connected to the pipe body of the water production pipe and is provided with two valves. The backwash pipe draws water from the backwash water tank through a water pump.

[0011] Preferably, the outlet pipe of the sodium hypochlorite generator is connected to the pipe body of the water production pipe and is equipped with a valve.

[0012] Preferably, a sewage pipe is provided at the bottom of the tank body.

[0013] Compared with the prior art, the utility model provides an integrated pressure-type immersed ultrafiltration membrane water purification device, which has the following beneficial effects.

[0014] 1. The utility model provides a high-pressure water inlet structure at the lower part of the tank body, so that water can flow from bottom to top after entering the tank body, and pressurize the water to increase the flux of water passing through the ultrafiltration membrane assembly, thereby solving the problem of general working efficiency of the submerged ultrafiltration equipment in the prior art.

[0015] Other advantages, objectives and features of the present invention will be described in the following description to some extent; and will be apparent to those skilled in the art based on the following examination and study to some extent; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model.

[0019] In the figure:

[0020] 1. Tank body; 2. Sodium hypochlorite generator; 3. Backwash water tank; 4. Liquid inlet pipe; 5. Water production pipe; 6. Sewage pipe; 7. Mounting plate; 8. Hollow fiber membrane. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-3The integrated pressure-type immersed ultrafiltration membrane water purification equipment comprises a tank body 1, a sodium hypochlorite generator 2 and a backwash water tank 3. An ultrafiltration membrane assembly is arranged in the middle of the tank body 1, a high-pressure water inlet structure is arranged at the lower part of the tank body 1, and a drainage structure is arranged at the upper part.

[0023] In a specific embodiment of the utility model, water is pressurized when entering the tank body 1, so that the water in the tank body 1 has a higher pressure, so that the water flux can be increased to a certain extent when passing through the ultrafiltration membrane assembly compared with the existing method, and the filtered clean water is discharged from the upper drainage structure.

[0024] The ultrafiltration membrane assembly includes a hollow fiber membrane 8 and a mounting plate 7. The mounting plate 7 is fixedly arranged on the inner wall of the tank body 1. The hollow fiber membrane 8 is fixedly mounted on the mounting plate 7. The hollow fiber membrane 8 is columnar, and its top is fixedly connected to the mounting plate 7. The top of the hollow fiber membrane 8 is a clean water outlet. The outer annular surface of the mounting plate 7 is the same as the inner diameter of the tank body 1. The mounting plate 7 divides the tank body 1 into two upper and lower spaces. The upper space is a clean water area, and the lower space is a water area to be purified.

[0025] In this embodiment, fifteen hollow fiber membranes 8 are provided and evenly distributed on the mounting plate 7 .

[0026] The high-pressure water inlet structure includes a high-pressure water pump and a liquid inlet pipe 4, one end of the liquid inlet pipe 4 is connected to the lower part of the tank body 1, and the other end is connected to the water source to be treated through the high-pressure water pump. When in use, the high-pressure water pump is used to pump the water to be treated to the lower water area to be purified in the tank body 1. After being pressurized, the water penetrates into the interior from the outer surface of the hollow fiber membrane 8, and the impurities are isolated on the outside of the membrane by the hollow fiber membrane 8. Then, the water entering the hollow fiber membrane 8 flows into the upper water purification area from the top outlet of the hollow fiber membrane 8, and then is discharged. Since the water pressure in the water area to be purified is relatively high, the water can pass through the hollow fiber membrane 8 faster.

[0027] The drainage structure includes a water production pipe 5, one end of which is connected to the upper part of the tank body 1, and the other end is connected to the clean water collection box. The water filtered by the hollow fiber membrane 8 is discharged from the water production pipe 5 into the clean water collection box.

[0028] The outlet end of the backwash pipe of the backwash water tank 3 is connected to the pipe body of the water production pipe 5 and is equipped with two valves, that is, a valve is set on the backwash pipe, and a valve is set on the water production pipe 5 near the connection between the two, and the valve on the water production pipe 5 is at the rear section of the connection, that is, closing the valve on the water production pipe 5 can allow the water in the backwash pipe to enter the tank body 1. The backwash pipe draws water from the backwash water tank 3 through a water pump. When filtering water and producing water, the valve on the backwash pipe is closed and the valve on the water production pipe 5 is opened, so that the produced water can enter the clean water collection tank; during backwashing, the valve on the water production pipe 5 is closed, and the valve on the backwash pipe is opened. The water in the backwash water tank 3 is drawn by the water pump, and enters the upper part of the tank body 1 from the water production pipe 5 to backwash the hollow fiber membrane 8, so that the impurities adhering to the outer surface of the hollow fiber membrane 8 are washed away and fall into the bottom of the tank body 1.

[0029] The outlet pipe of the sodium hypochlorite generator 2 is connected to the pipe body of the water production pipe 5 and is equipped with a valve installed on the outlet pipe. When the purified water enters the clean water collection box from the water production pipe 5, the sodium hypochlorite generator 2 disinfects the water in the water production pipe 5.

[0030] A sewage pipe 6 is arranged at the bottom of the tank body 1 , and a valve is also arranged on the sewage pipe 6 for controlling the opening and closing of the sewage pipe 6 . Impurities and waste water generated by backwashing are discharged through the sewage pipe 6 .

[0031] Workflow: Use a high-pressure water pump to deliver the water to be treated to the water area to be treated of the tank body 1 through the liquid inlet pipe 4, and use the high-pressure water pump to generate high pressure in the water area to be treated, accelerate the water to penetrate into the hollow fiber membrane 8, and use the hollow fiber membrane 8 to achieve the effect of filtering water. The purified water flows out from the top outlet of the hollow fiber membrane 8, enters the clean water area, and then is discharged from the water production pipe 5. During the discharge process, the sodium hypochlorite generator 2 is used to disinfect the water in the water production pipe 5, and finally the water enters the clean water collection box. During backwashing, close the valve on the water production pipe 5, close the liquid inlet pipe 4, open the valve on the backwash pipe, use a water pump to pump the water in the backwash water tank 3 into the tank body 1 to flush the hollow fiber membrane 8, and flush the impurities adhering to the hollow fiber membrane 8. The impurities and waste water after flushing fall into the bottom of the tank body 1 and are discharged through the sewage pipe 6.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0034] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. Integrated pressure immersed ultrafiltration membrane water purification equipment, characterized in that: It comprises a tank body (1), a sodium hypochlorite generator (2) and a backwash water tank (3); an ultrafiltration membrane assembly is arranged in the middle of the tank body (1); a high-pressure water inlet structure is arranged at the bottom of the tank body (1), and a drainage structure is arranged at the top.

2. The integrated pressure-type immersed ultrafiltration membrane water purification equipment according to claim 1 is characterized in that: The ultrafiltration membrane assembly comprises a hollow fiber membrane (8) and a mounting plate (7); the mounting plate (7) is fixedly arranged on the inner wall of the tank body (1); and the hollow fiber membrane (8) is fixedly mounted on the mounting plate (7).

3. The integrated pressure-type immersed ultrafiltration membrane water purification equipment according to claim 1 is characterized in that: The high-pressure water inlet structure comprises a high-pressure water pump and a liquid inlet pipe (4); one end of the liquid inlet pipe (4) is connected to the lower part of the tank body (1), and the other end is connected to a water source to be treated via the high-pressure water pump.

4. The integrated pressure immersed ultrafiltration membrane water purification equipment according to claim 1 is characterized in that: The drainage structure comprises a water production pipe (5), one end of the water production pipe (5) is connected to the upper part of the tank body (1), and the other end is connected to the clean water collection box.

5. The integrated pressure immersed ultrafiltration membrane water purification equipment according to claim 4 is characterized in that: The outlet end of the backwash pipe of the backwash water tank (3) is connected to the pipe body of the water production pipe (5) and is provided with two valves. The backwash pipe draws water from the backwash water tank (3) through a water pump.

6. The integrated pressure immersed ultrafiltration membrane water purification equipment according to claim 4, characterized in that: The outlet pipe of the sodium hypochlorite generator (2) is connected to the pipe body of the water production pipe (5) and is provided with a valve.

7. The integrated pressure-type immersed ultrafiltration membrane water purification equipment according to claim 4, characterized in that: A sewage discharge pipe (6) is provided at the bottom of the tank body (1).

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