Membrane pollution detection device special for seawater detection

By optimizing the seawater flow path through dynamic adjustment components and pressure sensors, the problem of contamination caused by dead corners inside the membrane module was solved, improving the filtration efficiency of seawater detection and the service life of the device, while reducing maintenance costs.

CN224152474UActive Publication Date: 2026-04-21NANJING BEST MECHANICAL & ELECTRICAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING BEST MECHANICAL & ELECTRICAL TECHNOLOGY CO LTD
Filing Date
2025-05-12
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In seawater testing, dead zones exist in the flow channels inside the membrane module, causing suspended particles, microorganisms, and organic matter to deposit on the membrane surface, forming a fouling layer. This affects the accuracy of the test results and the long-term operation of the device, and increases the difficulty of cleaning and operating costs.

Method used

A membrane fouling detection device including a dynamic adjustment component and a pressure sensor was designed. Through the linkage of a rotating shaft, a connecting shaft, a dynamic baffle, and a swing plate, the flow velocity and direction in the flow channel are automatically adjusted. Combined with a propeller blade and a porous distributor, the flow path is optimized, and pressure changes are monitored in real time to ensure the uniformity and stability of seawater flow.

Benefits of technology

It significantly improves filtration efficiency, extends the service life of membrane modules, reduces maintenance costs, and ensures the reliability and stability of seawater testing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a special membrane pollution detection device for seawater detection, which belongs to the technical field of seawater quality detection and comprises a bearing mechanism, a shell, a water inlet component arranged at the top of the shell, a water outlet pipe fixedly mounted at the bottom of the shell and a membrane component arranged in an inner cavity of the shell. And a shunting mechanism. Through the linkage design of the rotating shaft, the connecting shaft, the dynamic baffle, the groove and the swing plate of the dynamic adjusting assembly, the flow speed and the flow direction in the flow channel can be automatically adjusted according to the actual flowing situation of seawater, formation of a local retention area is reduced, the seawater flowing path is optimized, and the seawater flowing efficiency is improved. The second pressure sensor monitors the pressure change in the flow channel in real time, provides data support for dynamic adjustment, ensures the uniformity and stability of seawater flow, effectively solves the problem of membrane pollution caused by non-uniform flow in a traditional device, remarkably improves the filtering efficiency, prolongs the service life of a membrane assembly, and reduces the maintenance cost at the same time.
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Description

Technical Field

[0001] This utility model belongs to the technical field of seawater quality testing, specifically relating to a membrane fouling detection device for seawater testing. Background Technology

[0002] In the field of seawater testing, membrane technology is widely used due to its high-efficiency separation characteristics. However, complex components in seawater, such as suspended particles, microorganisms, organic matter, and inorganic salts, can easily form a fouling layer on the membrane surface, leading to a decline in membrane performance and affecting the accuracy of test results and the long-term operation of the device. Therefore, membrane fouling detection devices are used to monitor the formation and development of membrane fouling in real time, providing a scientific basis for the maintenance and optimization of the membrane system, thereby improving the reliability and stability of seawater testing.

[0003] Currently, dead zones or uneven transitions exist in the flow channels inside membrane modules, causing local stagnation areas to form during seawater flow. This allows pollutants such as suspended particles, microorganisms, and organic matter to deposit and gradually accumulate in these areas. This deposition not only exacerbates fouling on the membrane surface and reduces membrane flux and filtration efficiency, but also affects the accuracy of test results, while increasing cleaning difficulty and operating costs. Utility Model Content

[0004] The purpose of this invention is to provide a membrane fouling detection device specifically for seawater testing, aiming to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A membrane fouling detection device specifically designed for seawater testing includes,

[0007] The support mechanism includes a housing, a water inlet assembly disposed on the top of the housing, a water outlet pipe fixedly installed on the bottom of the housing, and a membrane assembly disposed in the inner cavity of the housing;

[0008] The diversion mechanism includes a positioning plate, a fixed column fixedly installed on the top of the positioning plate, a vertical rod rotatably installed on the top of the fixed column, a sleeve fixedly sleeved on the outside of the vertical rod, a connecting block fixedly installed on the outside of the sleeve, a dynamic adjustment component disposed on the outside of the connecting block, and a second pressure sensor fixedly installed on the bottom of the positioning plate.

[0009] As a preferred embodiment of this utility model, the supporting mechanism further includes a side tube fixedly installed on the outside of the outer shell, and a plug movably engaged in the inner cavity of the side tube.

[0010] As a preferred embodiment of the present invention, the membrane assembly includes a membrane tube fixedly installed in the inner cavity of the outer shell, a filter plate fixedly installed on the top of the membrane tube, a propeller blade rotatably installed on the top of the filter plate, and a rotating rod fixedly installed on the top of the propeller blade.

[0011] As a preferred embodiment of the present invention, the membrane assembly further includes a first pressure sensor fixedly installed at the bottom of the filter plate, a rectangular channel formed on the inner wall of the membrane tube, a porous distributor fixedly installed in the center of the inner cavity of the filter plate, and a spiral flow channel formed in a ring at the bottom of the porous distributor.

[0012] As a preferred embodiment of the present invention, the dynamic adjustment component includes a rotating shaft rotatably mounted on the outside of the connecting block, a connecting shaft fixedly mounted on the outside of the rotating shaft, and a dynamic baffle fixedly mounted on the end of the connecting shaft.

[0013] As a preferred embodiment of the present invention, the dynamic adjustment component further includes a groove formed on the outer side of the dynamic baffle, and a swing plate rotatably installed in the inner cavity of the groove.

[0014] As a preferred embodiment of the present invention, the water inlet assembly includes a water inlet channel pipe fixedly installed on the top of the outer shell, a limiting ring fixedly installed on the top of the water inlet channel pipe, and a limiting groove formed on the top of the limiting ring.

[0015] As a preferred embodiment of this utility model, the water inlet assembly further includes a rotating rod rotatably mounted at the center of the top of the limiting ring, a limiting block fixedly mounted on the outside of the rotating rod, and a blade fixedly mounted on the outside of the rotating rod.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: through the linkage design of the rotating shaft, connecting shaft, dynamic baffle, groove and swing plate of the dynamic adjustment component, the flow velocity and direction in the flow channel can be automatically adjusted according to the actual situation of seawater flow, reducing the formation of local stagnation areas and optimizing the seawater flow path. The second pressure sensor monitors the pressure changes in the flow channel in real time, providing data support for dynamic adjustment, ensuring the uniformity and stability of seawater flow, effectively solving the membrane fouling problem caused by uneven flow in traditional devices, significantly improving filtration efficiency, extending the service life of membrane modules, and reducing maintenance costs. Attached Figure Description

[0017] 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:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partial cross-sectional view of the outer shell structure of this utility model;

[0020] Figure 3 This is a partial cross-sectional view of the membrane tube structure of this utility model;

[0021] Figure 4 This is a partial cross-sectional view of the filter plate structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the diversion mechanism and dynamic adjustment component of this utility model;

[0023] Figure 6 This is a schematic diagram of the water inlet component structure of this utility model.

[0024] In the diagram: 100, bearing mechanism; 101, outer casing; 102, water inlet assembly; 102a, water inlet channel pipe; 102b, limiting ring; 102c, limiting groove; 102d, rotating rod; 102e, limiting block; 102f, blade; 103, water outlet pipe; 104, membrane module; 104a, membrane tube; 104b, filter plate; 104c, propeller blade; 104d, rotating rod; 104e, first pressure sensor; 104f, rectangular... 104g, Porous distributor; 104h, Spiral flow channel; 105, Side pipe; 106, Plug; 200, Diverting mechanism; 201, Positioning plate; 202, Fixed column; 203, Vertical rod; 204, Sleeve; 205, Connecting block; 206, Dynamic adjustment component; 206a, Rotating shaft; 206b, Connecting shaft; 206c, Dynamic baffle; 206d, Groove; 206e, Swing plate; 207, Second pressure sensor. Detailed Implementation

[0025] 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.

[0026] 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.

[0027] 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.

[0028] Example

[0029] Reference Figures 1-6 This is an embodiment of the present invention, which provides a membrane fouling detection device specifically for seawater testing, comprising:

[0030] The support mechanism 100 includes a housing 101, a water inlet assembly 102 disposed on the top of the housing 101, a water outlet pipe 103 fixedly installed on the bottom of the housing 101, and a membrane assembly 104 disposed in the inner cavity of the housing 101.

[0031] The diversion mechanism 200 includes a positioning plate 201, a fixed column 202 fixedly installed on the top of the positioning plate 201, a vertical rod 203 rotatably installed on the top of the fixed column 202, a sleeve 204 fixedly sleeved on the outside of the vertical rod 203, a connecting block 205 fixedly installed on the outside of the sleeve 204, a dynamic adjustment component 206 disposed on the outside of the connecting block 205, and a second pressure sensor 207 fixedly installed on the bottom of the positioning plate 201.

[0032] The positioning plate 201 and the fixed column 202 provide stable support, while the vertical rod 203 and the sleeve 204 ensure the flexibility of the structure. The diversion mechanism 200 can automatically adjust the flow rate and direction according to the seawater flow, reduce dead corners in the flow channel, and avoid the formation of local stagnation areas. The second pressure sensor 207 monitors the pressure changes in the flow channel in real time, providing data support for dynamic adjustment, thereby significantly improving the uniformity of seawater flow and filtration efficiency, reducing the risk of membrane fouling, and extending the service life of the device.

[0033] Specifically, the load-bearing mechanism 100 also includes a side tube 105 fixedly installed on the outside of the housing 101, and a plug 106 movably locked in the inner cavity of the side tube 105.

[0034] The design of the side tube 105 and the plug 106 facilitates the maintenance and cleaning of the device, further improving its practicality and service life. The installation position of the side tube 105 ensures that the cleaning fluid can evenly cover all areas of the membrane module 104, improving the cleaning effect. The movable locking design of the plug 106 facilitates quick disassembly and installation, reducing maintenance time and costs.

[0035] Furthermore, the membrane assembly 104 includes a membrane tube 104a fixedly installed in the inner cavity of the housing 101, a filter plate 104b fixedly installed on the top of the membrane tube 104a, a propeller blade 104c rotatably installed on the top of the filter plate 104b, and a rotating rod 104d fixedly installed on the top of the propeller blade 104c. The membrane assembly 104 also includes a first pressure sensor 104e fixedly installed on the bottom of the filter plate 104b, a rectangular channel 104f opened on the inner wall of the membrane tube 104a, a porous distributor 104g fixedly installed in the center of the inner cavity of the filter plate 104b, and a spiral flow channel 104h opened in an annular shape on the bottom of the porous distributor 104g.

[0036] The rotating design of the propeller blade 104c and the rotating rod 104d drives the seawater flow through mechanical power, reducing the formation of dead zones and improving filtration efficiency. The installation of the first pressure sensor 104e monitors the pressure changes inside the membrane module 104 in real time, providing reliable data support for the operation of the device. The design of the rectangular channel 104f and the porous distributor 104g further optimizes the flow path of the seawater and reduces the formation of local stagnation areas. The annular design of the spiral channel 104h increases the contact time between the seawater and the membrane surface, significantly improving the filtration effect.

[0037] Preferably, the dynamic adjustment component 206 includes a rotating shaft 206a rotatably mounted on the outside of the connecting block 205, a connecting shaft 206b fixedly mounted on the outside of the rotating shaft 206a, and a dynamic baffle 206c fixedly mounted on the end of the connecting shaft 206b. The dynamic adjustment component 206 also includes a groove 206d formed on the outside of the dynamic baffle 206c, and a swing plate 206e rotatably mounted in the inner cavity of the groove 206d.

[0038] The dynamic adjustment component 206 achieves automatic adjustment of flow velocity and direction within the flow channel through the linkage of the rotating shaft 206a, connecting shaft 206b, and dynamic baffle 206c. The design of the groove 206d and the swing plate 206e further enhances the adjustment capability of the dynamic baffle 206c, ensuring uniform distribution of seawater within the flow channel. The dynamic adjustment component 206 not only improves the filtration efficiency of the device but also significantly reduces membrane fouling and extends the service life of the membrane module 104.

[0039] Furthermore, the water inlet assembly 102 includes a water inlet pipe 102a fixedly installed on the top of the housing 101, a limiting ring 102b fixedly installed on the top of the water inlet pipe 102a, and a limiting groove 102c opened on the top of the limiting ring 102b. The water inlet assembly 102 also includes a rotating rod 102d rotatably installed at the center of the top of the limiting ring 102b, a limiting block 102e fixedly installed on the outside of the rotating rod 102d, and a blade 102f fixedly installed on the outside of the rotating rod 102d.

[0040] The water inlet assembly 102 can drive the blades 102f to rotate through the water flow via the rotating rod 102d, thereby achieving uniform distribution of seawater. The rotation design of the rotating rod 102d and the blades 102f automatically drives the rotation through the seawater flow, reducing the formation of external dead corners and improving filtration efficiency.

[0041] It should be noted that the specific models of the first pressure sensor 104e and the second pressure sensor 207 are: Honeywell MPR Series MPR-001BPA00001UA. These sensors can be used in the device to monitor pressure changes within the membrane module 104 and the shunt mechanism 200 in real time, providing reliable data support for dynamic adjustment and filtration efficiency optimization. Their corrosion resistance and high precision make them ideal for membrane fouling detection devices used in seawater testing.

[0042] In use, seawater enters the outer shell 101 through the water inlet assembly 102. The rotating rod 102d and blade 102f in the water inlet assembly rotate under the drive of the water flow to achieve uniform distribution of seawater.

[0043] Subsequently, seawater flows into the diversion mechanism 200, and the dynamic adjustment component 206 automatically adjusts the angle of the dynamic baffle 206c according to the flow conditions to optimize the flow rate and direction and reduce dead zones in the flow channel.

[0044] Next, seawater enters the membrane module 104, where propeller blades 104c and rotor 104d drive the seawater flow. Rectangular channel 104f, porous distributor 104g, and spiral flow channel 104h further optimize the flow path and improve filtration efficiency.

[0045] The filtered seawater is discharged through the outlet pipe 103. At the same time, the first pressure sensor 104e and the second pressure sensor 207 monitor the pressure changes in real time, providing data support for the operation of the device, ensuring the uniformity and stability of the seawater flow, and ultimately achieving efficient filtration and membrane fouling detection.

[0046] In summary, through the coordinated work of the bearing mechanism 100 and the diversion mechanism 200, precise control and efficient filtration of seawater flow are achieved; the water inlet assembly 102 and the membrane assembly 104 together form the main frame of the device. The water inlet assembly 102, through the design of the rotating rod 102d and the blades 102f, achieves uniform distribution of seawater and reduces the situation of excessively high or low local flow velocities.

[0047] The membrane module 104, through the optimized design of propeller blade 104c, rotor 104d, rectangular channel 104f, porous distributor 104g and spiral flow channel 104h, significantly improves filtration efficiency and reduces membrane fouling.

[0048] The diversion mechanism 200 achieves dynamic adjustment of flow velocity and direction within the flow channel through the linkage of positioning plate 201, fixed column 202, vertical rod 203, sleeve 204, connecting block 205 and dynamic adjustment component 206, further optimizing the seawater flow path and reducing the formation of dead zones.

[0049] The real-time monitoring function of the second pressure sensor 207 and the first pressure sensor 104e provides reliable data support for the operation of the device, ensuring the stability and efficiency of the device. The overall device design is reasonable and the functions are complete, which significantly improves the accuracy of seawater detection and the efficiency of membrane fouling detection, and extends the service life of the device.

[0050] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0051] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0052] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine task in design, manufacturing, and production without requiring extensive experimentation.

[0053] 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. A membrane fouling detection device dedicated to seawater detection, characterized in that: include, The support mechanism (100) includes a housing (101), a water inlet assembly (102) disposed on the top of the housing (101), a water outlet pipe (103) fixedly installed on the bottom of the housing (101), and a membrane assembly (104) disposed in the inner cavity of the housing (101); The diversion mechanism (200) includes a positioning plate (201), a fixed column (202) fixedly installed on the top of the positioning plate (201), a vertical rod (203) rotatably installed on the top of the fixed column (202), a sleeve (204) fixedly sleeved on the outside of the vertical rod (203), a connecting block (205) fixedly installed on the outside of the sleeve (204), a dynamic adjustment component (206) disposed on the outside of the connecting block (205), and a second pressure sensor (207) fixedly installed on the bottom of the positioning plate (201).

2. The membrane fouling detection device dedicated to seawater detection according to claim 1, characterized in that: The support mechanism (100) also includes a side tube (105) fixedly installed on the outside of the housing (101) and a plug (106) movably engaged in the inner cavity of the side tube (105).

3. The membrane fouling detection device dedicated to seawater detection according to claim 2, characterized in that: The membrane assembly (104) includes a membrane tube (104a) fixedly installed in the inner cavity of the housing (101), a filter plate (104b) fixedly installed on the top of the membrane tube (104a), a propeller blade (104c) rotatably installed on the top of the filter plate (104b), and a rotating rod (104d) fixedly installed on the top of the propeller blade (104c).

4. The membrane fouling detection device dedicated to seawater detection according to claim 3, characterized in that: The membrane assembly (104) further includes a first pressure sensor (104e) fixedly installed at the bottom of the filter plate (104b), a rectangular channel (104f) formed on the inner wall of the membrane tube (104a), a porous distributor (104g) fixedly installed in the center of the inner cavity of the filter plate (104b), and a spiral flow channel (104h) formed in a ring at the bottom of the porous distributor (104g).

5. The membrane fouling detection device dedicated to seawater detection according to claim 4, characterized in that: The dynamic adjustment component (206) includes a rotating shaft (206a) rotatably mounted on the outside of the connecting block (205), a connecting shaft (206b) fixedly mounted on the outside of the rotating shaft (206a), and a dynamic baffle (206c) fixedly mounted on the end of the connecting shaft (206b).

6. The membrane fouling detection device dedicated to seawater detection according to claim 5, characterized in that: The dynamic adjustment component (206) further includes a groove (206d) formed on the outside of the dynamic baffle (206c) and a swing plate (206e) rotatably installed in the inner cavity of the groove (206d).

7. The membrane fouling detection device dedicated to seawater detection according to claim 6, characterized in that: The water inlet assembly (102) includes a water inlet tube (102a) fixedly installed on the top of the housing (101), a limiting ring (102b) fixedly installed on the top of the water inlet tube (102a), and a limiting groove (102c) formed on the top of the limiting ring (102b).

8. The membrane fouling detection device dedicated to seawater detection according to claim 7, characterized in that: The water inlet assembly (102) also includes a rotating rod (102d) rotatably mounted at the top center of the limiting ring (102b), a limiting block (102e) fixedly mounted on the outside of the rotating rod (102d), and a blade (102f) fixedly mounted on the outside of the rotating rod (102d).