Sewage treatment ultrafiltration membrane

Abstract

The utility model provides a sewage treatment ultrafiltration membrane which comprises a pressurizing tank body and a cylindrical ultrafiltration membrane with a sealed lower end and an open upper end, the cylindrical ultrafiltration membrane is arranged in the pressurizing tank body and is connected with the pressurizing tank body through a fixed rotating part, the fixed rotating part is communicated with a water inlet pipe, and the water inlet pipe is communicated with a water outlet pipe. The side end face of the pressurizing tank body is communicated with a backwashing mechanism, the lower end of the side end face of the pressurizing tank body is communicated with a water outlet pipe and is arranged at the lower end of the cylindrical ultrafiltration membrane, and through the backwashing mechanism, the cylindrical ultrafiltration membrane can be cleaned conveniently, the flow speed can be increased conveniently, and the filtering efficiency can be improved conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage filtration, in particular to an ultrafiltration membrane for sewage treatment. Background Art

[0002] In the process of sewage treatment, ultrafiltration membrane is needed to filter the sewage;

[0003] 1. When the ultrafiltration membrane is in use, water is introduced from its side end, so that the side surface of the ultrafiltration membrane filters the sewage. However, during the filtration process, its surface is easily blocked by dirt, and the device needs to be disassembled and cleaned;

[0004] Second, because the mesh on the ultrafiltration membrane is small, it will affect the flow rate of water, reducing the flow rate and thus reducing the filtration efficiency; Utility Model Content

[0005] The utility model aims to solve the problems of the ultrafiltration membrane in the prior art that it is difficult to clean and has low filtration efficiency, and proposes an ultrafiltration membrane for sewage treatment.

[0006] The utility model provides a sewage treatment ultrafiltration membrane, comprising a booster tank body, a cylindrical ultrafiltration membrane with a lower end sealed and an upper end open, the cylindrical ultrafiltration membrane being arranged in the booster tank body, the cylindrical ultrafiltration membrane being connected to the booster tank body through a fixed rotating part, the fixed rotating part being connected to a water inlet pipe, the side end surface of the booster tank body being connected to a backwash mechanism, the lower end of the side end surface of the booster tank body being connected to a water outlet pipe, and being arranged at the lower end of the cylindrical ultrafiltration membrane.

[0007] According to a further improvement of the present invention, a drainage cavity is formed between the pressurized tank body and the cylindrical ultrafiltration membrane.

[0008] A further improvement scheme of the present invention is that the fixed rotating part includes a fixed collar plate 1, a fixed collar plate 2, and a fixed plate. The fixed collar plate 1 is fixedly sleeved on the surface of the pressurized tank body, the fixed collar plate 2 is connected to the upper end of the fixed collar plate 1 by bolts, and the fixed plate is sealingly rotatably connected to the inside of the fixed collar plate 2.

[0009] According to a further improvement of the present invention, the water inlet pipe seal rotates through the fixed plate and extends into the cylindrical ultrafiltration membrane, and the cylindrical ultrafiltration membrane is fixedly connected to the fixed plate.

[0010] A further improvement of the present invention is that the backwash mechanism includes a U-shaped connecting pipe and a drainage pipe. Both ends of the U-shaped connecting pipe are connected to the drainage cavity. Both ends of the drainage pipe are connected to the U-shaped connecting pipe and the drainage cavity respectively, and its lower end is arranged at the lower end of the cylindrical ultrafiltration membrane.

[0011] According to a further improvement of the present invention, the lower end of the pressurized tank body is connected to an air intake pipe, the side end of the pressurized tank body is connected to an exhaust pipe, and both the air intake pipe and the exhaust pipe are connected to the drainage cavity.

[0012] An annular filter membrane is fixedly connected to the outer side of the cylindrical ultrafiltration membrane.

[0013] Beneficial effects of the utility model: The utility model provides a sewage treatment ultrafiltration membrane:

[0014] The backwash mechanism is convenient for cleaning the cylindrical ultrafiltration membrane, increasing the flow rate and improving the filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 The utility model is a structure of a sewage treatment ultrafiltration membrane Figure 1 .

[0017] Figure 2 This is a top sectional view of a pressurized tank body and a cylindrical ultrafiltration membrane for sewage treatment according to the utility model.

[0018] Figure 3 The utility model is a structure of a sewage treatment ultrafiltration membrane Figure 2 .

[0019] Figure 4 This is a cross-sectional view of an ultrafiltration membrane for sewage treatment according to the utility model.

[0020] In the attached figure: 1. Pressurized tank body; 2. Cylindrical ultrafiltration membrane; 3. Fixed rotating part; 4. Water inlet pipe; 5. Backwash mechanism; 6. Water outlet pipe; 7. Drainage chamber; 8. Fixed collar plate 1; 9. Fixed collar plate 2; 10. Fixed plate; 11. U-shaped connecting pipe; 12. Drainage pipe; 13. Air inlet pipe; 14. Exhaust pipe; 15. Annular filter membrane. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present invention, the present application will be described more comprehensively with reference to the relevant drawings below; the drawings show preferred embodiments of the present invention, but the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0022] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are for illustrative purposes only and do not represent the only implementation method.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains; the terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention; the term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] according to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The sewage treatment ultrafiltration membrane shown in the figure includes a pressurized tank body 1, a cylindrical ultrafiltration membrane 2 with a lower end blocked and an upper end open, the cylindrical ultrafiltration membrane 2 is arranged in the pressurized tank body 1, and a drainage cavity 7 is formed between the pressurized tank body 1 and the cylindrical ultrafiltration membrane 2.

[0025] The cylindrical ultrafiltration membrane 2 is connected to the pressurized tank body 1 through a fixed rotating part 3, and the fixed rotating part 3 is connected to the water inlet pipe 4. The fixed rotating part 3 includes a fixed collar plate 8, a fixed collar plate 2 9, and a fixed plate 10. The fixed collar plate 18 is fixedly sleeved on the surface of the pressurized tank body 1, and the fixed collar plate 2 9 is connected to the upper end of the fixed collar plate 1 8 by bolts. The fixed plate 10 is sealingly rotatably connected to the inside of the fixed collar plate 2 9. The water inlet pipe 4 is sealingly rotatably passed through the fixed plate 10 and extends into the cylindrical ultrafiltration membrane 2. The cylindrical ultrafiltration membrane 2 is fixedly connected to the fixed plate 10.

[0026] A backwash mechanism 5 is connected to the side end face of the booster tank body 1, and a water outlet pipe 6 is connected to the lower end of the side end face of the booster tank body 1, and is arranged at the lower end of the cylindrical ultrafiltration membrane 2. The backwash mechanism 5 includes a U-shaped connecting pipe 11 and a drain pipe 12. Both ends of the U-shaped connecting pipe 11 are connected to the drainage chamber 7, and both ends of the drain pipe 12 are respectively connected to the U-shaped connecting pipe 11 and the drainage chamber 7, and the lower end thereof is arranged at the lower end of the cylindrical ultrafiltration membrane 2. The lower end of the booster tank body 1 is connected to an air inlet pipe 13, and the side end of the booster tank body 1 is connected to an exhaust pipe 14. Both the air inlet pipe 13 and the exhaust pipe 14 are connected to the drainage chamber 7. An annular filter membrane 15 is fixedly connected to the outside of the cylindrical ultrafiltration membrane 2, and the lower part of the U-shaped connecting pipe 11 is arranged below the annular filter membrane 15.

[0027] Principle of this utility model:

[0028] When in use, sewage enters the cylindrical ultrafiltration membrane 2 through the water inlet pipe 4, and the water filtered by the cylindrical ultrafiltration membrane 2 enters the drainage chamber 7. Part of the water passes through the annular filter membrane 15 and enters the drainage chamber 7 below the annular filter membrane 15, and is discharged through the outlet pipe 6.

[0029] The other part of the water enters the drainage cavity 7 below the annular filter membrane 15 through the drainage pipe 12 and the U-shaped connecting pipe 11, and is discharged through the outlet pipe 6;

[0030] Gas is added through the air inlet pipe 13, and the gas enters the pressurized tank body 1. Part of the gas is sprayed toward the cylindrical ultrafiltration membrane 2 through the U-shaped connecting pipe 11 and the drain pipe 12 to clean the dirt embedded in the mesh of the cylindrical ultrafiltration membrane 2. When the gas is sprayed, the fixed plate 10 is rotated to drive the cylindrical ultrafiltration membrane 2 to rotate, which can clean the cylindrical ultrafiltration membrane 2 and reduce blockage. The gas can be discharged from the exhaust pipe 14.

[0031] The novel device and its embodiments are described in this disclosure. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this disclosure and, without departing from the purpose of the present invention, designs a structure and embodiment similar to this technical solution without creatively designing, they shall fall within the scope of protection of the present invention.

Claims

1. A sewage treatment ultrafiltration membrane, comprising a pressurized tank (1), and a cylindrical ultrafiltration membrane (2) with a sealed lower end and an open upper end, characterized in that: The cylindrical ultrafiltration membrane (2) is arranged in the boosting tank body (1), and the cylindrical ultrafiltration membrane (2) is connected to the boosting tank body (1) through a fixed rotating part (3). The fixed rotating part (3) is connected to a water inlet pipe (4), and the side end surface of the boosting tank body (1) is connected to a backwashing mechanism (5). The lower end of the side end surface of the boosting tank body (1) is connected to a water outlet pipe (6) and is arranged at the lower end of the cylindrical ultrafiltration membrane (2).

2. The ultrafiltration membrane for sewage treatment according to claim 1, characterized in that: A drainage cavity (7) is formed between the pressurized tank body (1) and the cylindrical ultrafiltration membrane (2).

3. The ultrafiltration membrane for sewage treatment according to claim 2, characterized in that: The fixed rotating member (3) includes a fixed collar plate 1 (8), a fixed collar plate 2 (9), and a fixed plate (10). The fixed collar plate 1 (8) is fixedly sleeved on the surface of the booster tank (1). The fixed collar plate 2 (9) is connected to the upper end of the fixed collar plate 1 (8) by bolts. The fixed plate (10) is sealingly rotatably connected to the inside of the fixed collar plate 2 (9).

4. The ultrafiltration membrane for sewage treatment according to claim 3, characterized in that: The water inlet pipe (4) is sealed and rotated to pass through the fixed plate (10) and extend into the cylindrical ultrafiltration membrane (2). The cylindrical ultrafiltration membrane (2) is fixedly connected to the fixed plate (10).

5. The ultrafiltration membrane for sewage treatment according to claim 4, characterized in that: The backwash mechanism (5) comprises a U-shaped connecting pipe (11) and a drainage pipe (12). Both ends of the U-shaped connecting pipe (11) are connected to the drainage chamber (7). Both ends of the drainage pipe (12) are connected to the U-shaped connecting pipe (11) and the drainage chamber (7), respectively, and the lower end of the drainage pipe (12) is arranged at the lower end of the cylindrical ultrafiltration membrane (2).

6. The ultrafiltration membrane for sewage treatment according to claim 5, characterized in that: The lower end of the pressurized tank body (1) is connected to an air intake pipe (13), and the side end of the pressurized tank body (1) is connected to an exhaust pipe (14). Both the air intake pipe (13) and the exhaust pipe (14) are connected to the drainage chamber (7).

7. The ultrafiltration membrane for sewage treatment according to claim 6, characterized in that: An annular filter membrane (15) is fixedly connected to the outside of the cylindrical ultrafiltration membrane (2).

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