Ultrafiltration anti-scaling device

Abstract

The utility model discloses an ultrafiltration anti-scaling device which comprises an ultrafiltration anti-scaling component, the ultrafiltration anti-scaling assembly comprises a box body, a water inlet pipe connected with the box body, an ultrafiltration membrane connecting pipe arranged in the box body and connected with the ultrafiltration membrane, an air inlet pipe connected with the ultrafiltration membrane connecting pipe, an air compressor connected with the air inlet pipe, and a water outlet pipe connected with the ultrafiltration membrane connecting pipe; and a valve body assembly. Through mutual cooperation of the ultrafiltration anti-scaling assembly and the valve body assembly, stable operation in a small-water-volume scene is realized through linkage of liquid level control and an air compressor during use, high-pressure gas directly acts on membrane holes in a washing mode, pollutants are thoroughly removed, the service life of a membrane is prolonged, the use of chemical agents is reduced, the operation cost is reduced, and the service life of the membrane is prolonged. The device is suitable for drinking water treatment and solves the problems that when water inlet pressure and water quantity are insufficient, an ultrafiltration system cannot operate normally, and pollutants in membrane holes cannot be effectively removed in an existing cleaning mode, so that scaling and efficiency reduction are caused.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, specifically to an ultrafiltration anti-scaling device. Background Technology

[0002] Conventional ultrafiltration systems rely on natural pressure when the influent pressure is stable. When the pressure is insufficient, a booster pump is needed to supplement the influent. However, this method requires a high volume of raw water, and the booster function cannot be activated when the water volume is insufficient. Furthermore, existing ultrafiltration membrane cleaning methods mainly include water flushing, chemical cleaning, and aeration. Water flushing and aeration can only remove contaminants on the membrane surface and cannot treat scale clogging the membrane pores. While chemical cleaning is effective, it consumes a large amount of chemicals, posing environmental and cost issues, especially in the water treatment field. Over long-term operation, membrane pore clogging leads to increased transmembrane pressure differential and decreased permeate efficiency, severely affecting system stability. The booster influent depends on the raw water volume, making it unusable in low-volume scenarios. Membrane cleaning methods cannot completely remove contaminants from the membrane pores, leading to scaling. Chemical cleaning is costly and unsuitable for drinking water treatment. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide an ultrafiltration anti-scaling device. Through the cooperation of the ultrafiltration anti-scaling component and the valve body component, stable operation in low-water-volume scenarios can be achieved by linking the liquid level control with the air compressor during use. In the cleaning mode, high-pressure gas directly acts on the membrane pores to thoroughly remove contaminants, extend membrane life, reduce the use of chemical agents, and lower operating costs. It is suitable for drinking water treatment to solve the problems of insufficient inlet water pressure and volume, which prevent the ultrafiltration system from operating normally and the inability of existing cleaning methods to effectively remove contaminants inside the membrane pores, leading to scaling and reduced efficiency.

[0004] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: an ultrafiltration anti-scaling device, comprising:

[0005] An ultrafiltration anti-scaling component includes a housing, an inlet pipe connected to the housing, an ultrafiltration membrane connecting pipe disposed in the housing and connected to an ultrafiltration membrane, an air inlet pipe connected to the ultrafiltration membrane connecting pipe, an air compressor connected to the air inlet pipe, an outlet pipe connected to the ultrafiltration membrane connecting pipe, and an vent pipe connected to the bottom surface of the housing.

[0006] The valve body assembly includes an inlet control valve disposed on the inlet pipe, an outlet control valve disposed on the outlet pipe, an outlet control valve disposed on the outlet pipe, an air intake booster control valve disposed on the air intake pipe, and an air intake backwash control valve disposed on the air intake pipe.

[0007] In a preferred embodiment of the ultrafiltration anti-scaling device described in this utility model, the ultrafiltration membrane connecting pipe is connected to the air inlet pipe and the water outlet pipe respectively via a tee.

[0008] As a preferred embodiment of the ultrafiltration anti-scaling device described in this utility model, a level gauge is provided in the upper part of the inner chamber of the housing.

[0009] In a preferred embodiment of the ultrafiltration anti-fouling device of this utility model, a membrane frame is provided inside the housing, and the ultrafiltration membrane inside the housing is supported by the membrane frame.

[0010] In a preferred embodiment of the ultrafiltration anti-scaling device described in this utility model, the level gauge is used to monitor the upper and lower liquid levels.

[0011] Compared with the prior art, the advantages of this utility model are:

[0012] By coordinating the ultrafiltration anti-scaling components and valve body components, stable operation in low-volume scenarios is achieved through liquid level control and air compressor linkage. In the cleaning mode, high-pressure gas directly acts on the membrane pores to thoroughly remove contaminants, extend membrane life, reduce the use of chemical agents, and lower operating costs. It is suitable for drinking water treatment to solve the problems of ultrafiltration systems failing to operate normally when inlet water pressure and volume are insufficient, and the inability of existing cleaning methods to effectively remove contaminants inside the membrane pores, leading to scaling and reduced efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. 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. Among them:

[0014] Figure 1 This is a structural diagram of the present invention.

[0015] In the diagram: 1. Water inlet pipe; 2. Air inlet pipe; 3. Ultrafiltration membrane connecting pipe; 4. Water outlet pipe; 5. Drain pipe; 6. Level gauge; 7. Housing; 8. Membrane frame; 9. Air compressor; a. Water inlet control valve; b. Air inlet booster control valve; c. Air inlet backwash control valve; d. Water outlet control valve; e. Drain control valve. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0020] This invention provides an ultrafiltration anti-scaling device. Through the cooperation of the ultrafiltration anti-scaling component and the valve body component, stable operation in low-volume scenarios is achieved by linking the liquid level control with the air compressor during use. In the cleaning mode, high-pressure gas directly acts on the membrane pores to thoroughly remove contaminants, extend membrane life, reduce the use of chemical agents, and lower operating costs. It is suitable for drinking water treatment to solve the problems of ultrafiltration systems failing to operate normally when the inlet water pressure and volume are insufficient, and the inability of existing cleaning methods to effectively remove contaminants inside the membrane pores, leading to scaling and reduced efficiency.

[0021] Figure 1 The diagram shown is an overall structural schematic of one embodiment of an ultrafiltration anti-fouling device according to this utility model. Please refer to [link / reference]. Figure 1 The main structure of this embodiment includes: an ultrafiltration anti-fouling component and a valve body component.

[0022] The ultrafiltration anti-scaling component is used in conjunction with the valve body assembly. Specifically, the ultrafiltration anti-scaling component includes a housing 7, an inlet pipe 1 connected to the housing 7, an ultrafiltration membrane connecting pipe 3 located inside the housing 7 and connected to the ultrafiltration membrane, an air inlet pipe 2 connected to the ultrafiltration membrane connecting pipe 3, an air compressor 9 connected to the air inlet pipe 2, an outlet pipe 4 connected to the ultrafiltration membrane connecting pipe 3, and an vent pipe 5 connected to the bottom of the housing 7; the valve body assembly includes an inlet control valve a located on the inlet pipe 1, an outlet control valve d located on the outlet pipe 4, a vent control valve e located on the vent pipe 5, an air intake booster control valve b located on the air intake pipe 2, and an air intake backwash control valve c.

[0023] A level gauge 6 is installed in the upper part of the interior of the housing 7; a membrane frame 8 is installed inside the housing 7, and the ultrafiltration membrane inside the housing 7 is supported by the membrane frame 8.

[0024] In practical use, under water production mode, the air inlet booster control valve b, air inlet backwash control valve c, and vent control valve e are closed, while the water inlet control valve a and water outlet control valve d are opened. When the water pressure is stable and normal, raw water enters the tank 7 from the water inlet pipe 1. As the pressure inside the tank 7 increases, the water enters the ultrafiltration membrane and is discharged from the water outlet pipe 4. When the water pressure and volume are insufficient, raw water enters the tank 7 from the water inlet pipe 1. When the level gauge 6 detects that the liquid level has reached the upper level, the water inlet control valve a is closed, and the air compressor 9 and air inlet booster control valve b are opened. When the pressure inside the tank 7 increases, the water enters the ultrafiltration membrane and is discharged from the water outlet pipe 4. When the level gauge 6 detects that the water level has reached the minimum level, the air compressor 9 and air inlet booster control valve b are closed, and at the same time, the water inlet control valve a is opened. Raw water continues to enter the tank 7 from the water inlet pipe 1 for the next cycle.

[0025] When the transmembrane pressure difference increases and the water production efficiency decreases, the backwash mode is activated. The inlet water control valve a, the air inlet booster control valve b, and the outlet water control valve d are closed, while the air inlet backwash control valve c and the vent control valve e are opened. At the same time, the air compressor 9 is turned on, and gas enters the interior of the ultrafiltration membrane. High-pressure air is injected into the membrane using the air compressor 9. The impact force generated by the "burst point" inside the membrane removes pollutants, preventing long-term accumulation of pollutants inside the membrane pores that could lead to scaling. The pollutants are then discharged from the bottom vent pipe 5.

[0026] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An ultrafiltration anti-fouling device, characterized in that, The application relates to an anti-fouling ultrafiltration assembly, which comprises a box (7), a water inlet pipe (1) connected with the box (7), an ultrafiltration membrane connecting pipe (3) arranged in the box (7) and connected with an ultrafiltration membrane, an air inlet pipe (2) connected with the ultrafiltration membrane connecting pipe (3), an air compressor (9) connected with the air inlet pipe (2), a water outlet pipe (4) connected with the ultrafiltration membrane connecting pipe (3), and a discharge pipe (5) connected with the bottom surface of the box (7). The valve body assembly comprises a water inlet control valve (a) arranged on the water inlet pipe (1), a water outlet control valve (d) arranged on the water outlet pipe (4), a discharge control valve (e) arranged on the discharge pipe (5), an air inlet pressurization control valve (b) and an air inlet backwashing control valve (c) arranged on the air inlet pipe (2). The ultrafiltration membrane connecting pipe (3) is connected with the air inlet pipe (2) and the water outlet pipe (4) through a tee joint.

2. An ultrafiltration anti-fouling device according to claim 1, characterized in that The upper half of the inside of the box (7) is provided with a liquid level meter (6).

3. An ultrafiltration anti-fouling device according to claim 2, wherein The box (7) is provided with a membrane rack (8), and the ultrafiltration membrane in the box (7) is supported by the membrane rack (8).

4. An ultrafiltration anti-fouling device according to claim 3, wherein The liquid level meter (6) is used for monitoring the upper liquid level and the lower liquid level of the liquid level.

5. An ultrafiltration anti-fouling device according to claim 4, wherein ​

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