In-situ cleaning of ultrafiltration membrane modules for wastewater treatment

Abstract

The utility model discloses a kind of in-situ cleaning ultrafiltration membrane components for sewage treatment, comprising: main unit, main unit is used to filter and treat sewage;Agitation unit, agitation unit is set on main unit, agitation unit is used to disperse sewage, cleaning assembly, cleaning assembly is set on agitation unit, cleaning assembly is used to in-situ cleaning of main unit.The utility model satisfies sewage basic filtration by main unit, the impurities and pollutants that can be dispersed in the agglomeration of agitation unit in sewage, avoid its direct accumulation and block the filter structure of main unit, effectively improve filtration efficiency and water production flux stability, cleaning assembly relies on agitation unit, can directly in-situ cleaning of main unit, without disassembling core filter component, greatly shorten downtime maintenance time influence, and timely remove membrane pollution, prolong the service life of main unit, guarantee the efficient operation of sewage treatment.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment, and in particular to an in-situ cleaning ultrafiltration membrane module for wastewater treatment. Background Technology

[0002] With the acceleration of industrial production and urbanization, the amount of wastewater discharged continues to grow. Its sources cover industrial manufacturing, daily life, agricultural production and other fields. It has a complex composition and contains a large number of pollutants such as suspended solids, organic matter, heavy metal ions and microorganisms.

[0003] If discharged directly without effective treatment, it will seriously pollute surface water bodies, groundwater sources and soil, disrupt the ecological balance, and threaten human drinking water safety and health. Therefore, wastewater treatment has become a key link in ensuring the recycling of water resources and the safety of the ecological environment, and it is necessary to achieve pollutant removal and water quality compliance through systematic treatment processes.

[0004] In the advanced stage of wastewater treatment, ultrafiltration membrane modules have become the core equipment for improving effluent quality due to their ability to efficiently remove minute pollutants. However, during long-term operation, pollutants are prone to adhering to the membrane surface or clogging the membrane pores, leading to a decrease in membrane flux, an increase in operating energy consumption, and even a shortening of the membrane module's service life. Traditional cleaning methods require disassembling the membrane module, which is not only time-consuming and labor-intensive, increasing operation and maintenance costs, but also interrupts the wastewater treatment process and affects treatment efficiency. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the problems existing in the current in-situ cleaning ultrafiltration membrane module for wastewater treatment, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide an in-situ cleaning ultrafiltration membrane module for wastewater treatment, which solves the problem that "during long-term operation of ultrafiltration membrane modules, pollutants are easily attached to the membrane surface or block the membrane pores, resulting in a decrease in membrane flux, an increase in operating energy consumption, and even a shortening of the membrane module's service life. Traditional cleaning methods require disassembling the membrane module, which is not only time-consuming and labor-intensive, but also increases operation and maintenance costs and interrupts the wastewater treatment process, affecting treatment efficiency."

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: including:

[0009] Main unit, the main unit being used for wastewater filtration treatment;

[0010] An agitation unit is installed on the main unit and is used to disperse sewage. A cleaning component is installed on the agitation unit and is used to clean the main unit in situ.

[0011] As a preferred embodiment of the in-situ cleaning ultrafiltration membrane assembly for wastewater treatment described in this utility model, the main unit includes a filter membrane shell, with an inlet pipe and an outlet pipe fixedly connected to both ends of the filter membrane shell, the inlet pipe and the outlet pipe being arranged vertically, and a filter cartridge being fixedly connected to the outlet pipe, the filter cartridge being located at the internal center of the filter membrane shell.

[0012] As a preferred embodiment of the in-situ cleaning ultrafiltration membrane assembly for wastewater treatment described in this utility model, the agitation unit includes a rotating rod that is rotatably connected to the top surface of the filter cartridge, with its bottom end extending to one side of the interior of the filter cartridge. A stabilizing block is fixedly installed at the bottom end of the rotating rod, and a fan blade is fixedly installed on the rotating rod, with the fan blade being adapted to the inlet pipe.

[0013] As a preferred embodiment of the in-situ cleaning ultrafiltration membrane assembly for wastewater treatment described in this utility model, the cleaning assembly includes multiple crossbars, all of which are fixedly installed on a rotating rod. Two wiping strips are fixedly installed on the multiple crossbars. The two wiping strips are movably attached to the inner wall of the filter cartridge. Multiple conical protrusions are fixedly installed on each of the two wiping strips, and the multiple conical protrusions are distributed vertically at equal intervals.

[0014] In a preferred embodiment of the in-situ cleaning ultrafiltration membrane assembly for wastewater treatment described in this utility model, the plurality of conical protrusions are adapted to the filter pores of the filter cartridge, and the plurality of conical protrusions are made of elastic material.

[0015] In a preferred embodiment of the in-situ cleaning ultrafiltration membrane assembly for wastewater treatment described in this utility model, a drain pipe is fixedly connected to the outer shell of the filter membrane, and a valve is provided on the drain pipe.

[0016] In a preferred embodiment of the in-situ cleaning ultrafiltration membrane assembly for wastewater treatment described in this utility model, two support rings are fixedly installed on the filter cartridge, and both support rings are fixedly installed to the inner wall of the filter membrane shell.

[0017] As a preferred embodiment of the in-situ cleaning ultrafiltration membrane assembly for wastewater treatment described in this utility model, wherein: flow ports are provided on both of the support rings, and the edges of the multiple flow ports are all set with bevels.

[0018] The beneficial effects of this utility model are:

[0019] The main unit satisfies basic wastewater filtration, while the agitation unit breaks up aggregated impurities and pollutants in the wastewater, preventing them from directly clogging the filter structure of the main unit. This effectively improves filtration efficiency and the stability of permeate flow. The cleaning component, relying on the agitation unit, can directly clean the main unit in situ without disassembling the core filter components, significantly reducing downtime for maintenance and promptly removing membrane fouling, extending the service life of the main unit, and ensuring the efficient operation of wastewater treatment. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. 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:

[0021] Figure 1 This is a frontal overall structural diagram of an in-situ cleaning ultrafiltration membrane module for wastewater treatment proposed in this utility model;

[0022] Figure 2 This is an exploded structural diagram of an in-situ cleaning ultrafiltration membrane module for wastewater treatment proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the filter membrane shell proposed in this utility model;

[0024] Figure 4 for Figure 3 A magnified structural diagram of region A.

[0025] In the picture:

[0026] 100. Main body unit; 101. Filter membrane housing; 102. Inlet pipe; 103. Outlet pipe; 104. Filter cartridge; 1011. Sewage pipe; 1041. Support ring; 1042. Flow port;

[0027] 200. Stirring unit; 201. Rotating rod; 202. Stabilizing block; 203. Fan blade;

[0028] 300. Cleaning component; 301. Crossbar; 302. Wiping strip; 303. Conical protrusion. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0032] 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.

[0033] Example 1

[0034] Reference Figures 1 to 4 This is the first embodiment of the present utility model, which provides the following achievable effects:

[0035] Main unit 100, the main unit 100 is used for wastewater filtration treatment;

[0036] A stirring unit 200 is installed on the main body unit 100 and is used to disperse sewage. A cleaning component 300 is installed on the stirring unit 200 and is used to clean the main body unit 100 in situ.

[0037] During use, the main unit 100 meets the basic filtration requirements of sewage. The agitation unit 200 can break up the aggregated impurities and pollutants in the sewage, preventing them from directly accumulating and clogging the filtration structure of the main unit 100, effectively improving filtration efficiency and the stability of water production flux. The cleaning component 300, relying on the agitation unit 200, can directly clean the main unit 100 in situ without disassembling the core filter components, greatly reducing downtime for maintenance, and promptly removing membrane fouling, extending the service life of the main unit 100, and ensuring the efficient operation of sewage treatment.

[0038] Example 2

[0039] Reference Figures 1 to 4 This is the second embodiment of the present invention, which differs from the previous embodiment in that:

[0040] The main unit 100 includes a filter membrane housing 101. The two ends of the filter membrane housing 101 are respectively fixedly connected to an inlet pipe 102 and an outlet pipe 103. The inlet pipe 102 and the outlet pipe 103 are respectively arranged vertically, and a filter cylinder 104 is fixedly connected to the outlet pipe 103. The filter cylinder 104 is located at the center of the filter membrane housing 101.

[0041] The filter membrane housing 101 provides a stable and sealed space for wastewater filtration. The inlet pipe 102 and outlet pipe 103 are distributed vertically, which can guide the wastewater to form an orderly water flow and ensure that the wastewater flows fully through the filter cartridge 104. The filter cartridge 104 is located in the center of the filter membrane housing 101, allowing the filtered clean water to quickly flow into the outlet pipe 103, reducing residue and effectively ensuring the filtration effect and water production stability.

[0042] Specifically, the agitation unit 200 includes a rotating rod 201, which is rotatably connected to the top surface of the filter cylinder 104. Its bottom end extends to one side of the interior of the filter cylinder 104. A stabilizing block 202 is fixedly installed at the bottom end of the rotating rod 201. A fan blade 203 is fixedly installed on the rotating rod 201, and the fan blade 203 is adapted to the water inlet pipe 102.

[0043] The fan blade 203 is adapted to the water inlet pipe 102. The fan blade 203 can be driven to rotate by the flow of water to disperse the water flow, promote the uniform contact of sewage with the filter cartridge 104, reduce local siltation, and improve filtration efficiency. The stabilizing block 202 can stabilize the bottom of the rotating rod 201, prevent shaking during rotation, and ensure rotational stability.

[0044] Specifically, the cleaning component 300 includes multiple crossbars 301, all of which are fixedly mounted on the rotating rod 201. Two wiping strips 302 are fixedly mounted on the multiple crossbars 301. Both wiping strips 302 are movably attached to the inner wall of the filter cartridge 104. Multiple conical protrusions 303 are fixedly mounted on each of the two wiping strips 302. The multiple conical protrusions 303 are distributed vertically at equal intervals.

[0045] During use, relying on the rotation power of the rotating rod 201, it can achieve in-situ cleaning without additional energy consumption, which is energy-saving and convenient. The crossbar 301 drives the wiping strip 302 to fit against the inner wall of the filter cartridge 104, avoiding clogging of the filter cartridge 104 and achieving in-situ cleaning. In addition, the vertically and equally spaced conical protrusions 303 can accurately unclog the multiple filter holes of the filter cartridge 104, effectively ensuring the filtration flux of the filter cartridge 104, extending its service life, and improving the efficiency of cleaning and filtration synergy.

[0046] Example 3

[0047] Reference Figures 2 to 4 This is the third embodiment of the present invention, which differs from the previous embodiment in that:

[0048] Multiple conical protrusions 303 are adapted to the filter holes of the filter cartridge 104, and multiple conical protrusions 303 are made of elastic material.

[0049] The conical protrusion 303 is adapted to the filter holes of the filter cartridge 104, which can accurately and deeply unclog blockages. The elastic material can not only fit tightly for cleaning, but also avoid damage to the filter cartridge 104, ensuring the permeability of the filter holes and the integrity of the filter cartridge 104, thus improving the cleaning effect. The elastic material is specifically a polyurethane elastomer, which is wear-resistant, acid and alkali resistant, and has long-lasting elasticity. It can withstand the scouring of particles in sewage and is a mature technology.

[0050] Specifically, a drain pipe 1011 is fixedly connected to the filter membrane housing 101, and a valve is installed on the drain pipe 1011.

[0051] The drain pipe 1011 can promptly discharge impurities accumulated inside the filter membrane housing 101. With the valve, the timing of the drain can be flexibly controlled. It can be cleaned without disassembly and repair, avoiding the accumulation and blockage of impurities and ensuring the stable operation of the filtration system.

[0052] Specifically, two support rings 1041 are fixedly installed on the filter cartridge 104, and both support rings 1041 are fixedly installed to the inner wall of the filter membrane housing 101.

[0053] The support ring 1041 can further stabilize the filter cartridge 104 inside the filter membrane housing 101, prevent the filter cartridge 104 from shaking or shifting, ensure that the filter cartridge 104 is always centered, and improve the overall structural stability.

[0054] Specifically, each of the two support rings 1041 has a flow port 1042, and the edges of the multiple flow ports 1042 are all set with a slope.

[0055] During use, the flow port 1042 ensures smooth flow of wastewater between the filter membrane housing 101 and the filter cartridge 104. The beveled edge reduces water flow resistance, prevents impurities from accumulating at the port, and guides wastewater to flow evenly towards the filter cartridge 104.

[0056] During use, wastewater enters the filter membrane housing 101 through the inlet pipe 102. Because the inlet pipe 102 is compatible with the fan blades 203, the water flow impacts the fan blades 203, causing the rotating rod 201 to rotate. The water flow is dispersed by the fan blades 203, promoting uniform contact of the wastewater with the filter cartridge 104 and reducing localized siltation. The stabilizing block 202 ensures the stable rotation of the rotating rod 201. The wastewater diffuses along the inclined flow port 1042 of the support ring 1041 within the filter membrane housing 101, flowing evenly towards the outer wall of the filter cartridge 104. The wastewater is filtered through multiple filter holes in the filter cartridge 104, allowing clean water to enter the filter cartridge 104 and finally discharge from the outlet pipe 103. As the rotating rod 201 rotates... The crossbar 301 synchronously drives the two wiping strips 302 to rotate against the inner wall of the filter cartridge 104. The conical protrusions 303 of the elastic material move with the wiping strips 302 and can be inserted into the filter holes of the filter cartridge 104. This can not only scrape off the pollutants attached to the inner wall, but also unclog the filter holes, realizing synchronous in-situ cleaning during filtration. The cleaned impurities and sewage are discharged through the drain pipe 1011. The support ring 1041 not only fixes the position of the filter cartridge 104, but also guides the water flow distribution through the flow port 1042 to improve the filtration efficiency. In addition, all components of this device are coated with waterproof coating to effectively avoid the corrosion and pollution of components by sewage. This is an existing mature technology, which will not be described in detail in this article.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An in-situ cleaning ultrafiltration membrane module for wastewater treatment, characterized in that: include: A main body unit (100) is used for wastewater filtration treatment; A stirring unit (200) is disposed on the main body unit (100) and is used to disperse sewage. A cleaning component (300) is disposed on the stirring unit (200) and is used to clean the main body unit (100) in situ.

2. The in-situ cleaning ultrafiltration membrane module for wastewater treatment according to claim 1, characterized in that: The main unit (100) includes a filter membrane shell (101), with an inlet pipe (102) and an outlet pipe (103) fixedly connected to both ends of the filter membrane shell (101). The inlet pipe (102) and the outlet pipe (103) are respectively arranged vertically, and a filter cylinder (104) is fixedly connected to the outlet pipe (103). The filter cylinder (104) is located at the center of the filter membrane shell (101).

3. The in-situ cleaning ultrafiltration membrane module for wastewater treatment according to claim 2, characterized in that: The stirring unit (200) includes a rotating rod (201), which is rotatably connected to the top surface of the filter cylinder (104). Its bottom end extends to one side of the interior of the filter cylinder (104). A stabilizing block (202) is fixedly installed at the bottom end of the rotating rod (201). A fan blade (203) is fixedly installed on the rotating rod (201), and the fan blade (203) is adapted to the water inlet pipe (102).

4. The in-situ cleaning ultrafiltration membrane module for wastewater treatment according to claim 3, characterized in that: The cleaning assembly (300) includes multiple crossbars (301), all of which are fixedly mounted on the rotating rod (201). Two wiping strips (302) are fixedly mounted on the multiple crossbars (301). The two wiping strips (302) are movably attached to the inner wall of the filter cartridge (104). Multiple conical protrusions (303) are fixedly mounted on the two wiping strips (302). The multiple conical protrusions (303) are distributed vertically at equal intervals.

5. The in-situ cleaning ultrafiltration membrane module for wastewater treatment according to claim 4, characterized in that: The multiple conical protrusions (303) are adapted to the filter holes of the filter cartridge (104), and the multiple conical protrusions (303) are made of elastic material.

6. The in-situ cleaning ultrafiltration membrane module for wastewater treatment according to claim 5, characterized in that: A drain pipe (1011) is fixedly connected to the filter membrane housing (101), and a valve is installed on the drain pipe (1011).

7. The in-situ cleaning ultrafiltration membrane module for wastewater treatment according to claim 6, characterized in that: Two support rings (1041) are fixedly installed on the filter cartridge (104), and both support rings (1041) are fixedly installed on the inner wall of the filter membrane shell (101).

8. The in-situ cleaning ultrafiltration membrane module for wastewater treatment according to claim 7, characterized in that: Both of the support rings (1041) are provided with flow ports (1042), and the edges of the multiple flow ports (1042) are all set with bevels.

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