Membrane element contrast experiment device

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By designing a membrane component comparison experimental device, using the membrane bracket and aeration box to ensure the testing of the membrane component under the same conditions, the inaccuracy and incomparability of the membrane component performance test results in the prior art are solved, and the accuracy and comparability of the test results are improved.

CN222641706UActive Publication Date: 2025-03-21SHANGHAI SNAP MEMBRANE SEPARATION TECH CO LTD

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Patent Information

Application Number: CN202421902986.7
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-08-07
Publication Date: 2025-03-21
Estimated Expiration: 2034-08-07

AI Technical Summary

Technical Problem

In the prior art, the performance test results of membrane elements are greatly affected by the test equipment and the environment, resulting in insufficient accuracy and comparability of the results.

Method used

A membrane element comparison experimental device is designed to achieve equally spaced settings of membrane element samples through membrane brackets. The aeration box provides the same aeration environment to ensure the performance test of different membrane elements under the same conditions.

Benefits of technology

It improves the accuracy and comparability of the performance test results of membrane components, ensuring the scientificity and reliability of the selection of membrane components.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a membrane element contrast experiment device which comprises a membrane support suitable for supporting and fixing a plurality of membrane element samples; the aeration box body is suitable for aerating a membrane element sample fixed on the membrane bracket; wherein the membrane bracket comprises two bracket units which are symmetrically arranged, each bracket unit comprises a side fixing frame and a bottom support, and a plurality of fixing units for fixing membrane element samples are arranged between the two side fixing frames; the fixing unit comprises a fixing screw rod, a plurality of movable fixing blocks and a plurality of locking nuts, the locking nuts are suitable for locking the positions of the movable fixing blocks so as to clamp the membrane element samples, and the membrane element samples are arranged at equal intervals; the aeration box body comprises an aeration frame, an aeration pipeline and a perforated aerator, the aeration pipeline and the perforated aerator are arranged in the aeration frame, the aeration pipeline is connected with an air inlet pipe, the perforated aerator is communicated with the aeration pipeline, and the perforated aerator and the membrane element sample are arranged in parallel. By adopting the contrast experiment device, the same test condition is provided for different membrane elements, and the accuracy of performance test results is improved.

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Description

Technical Field

[0001] The utility model belongs to the technical field of membrane bioreactors, and in particular relates to a membrane element comparison experimental device. Background Art

[0002] The submerged membrane bioreactor (MBR) is an organic combination of membrane separation technology and biotechnology. It uses ultrafiltration or microfiltration membrane separation technology to replace the secondary sedimentation tank and conventional filtration unit of the traditional activated sludge method, so that the hydraulic retention time (HRT) and sludge age (STR) are completely separated. This is an efficient and economical sewage resource technology with efficient solid-liquid separation capabilities. Not only is the effluent water quality good, the suspended solids and turbidity are close to zero, but it can also intercept biological pollutants such as Escherichia coli. And because the effluent water quality is significantly better than the traditional sewage treatment process, the treated water can be directly reused, and it has a wide range of application prospects.

[0003] The flat membrane module is the core component of the submerged membrane bioreactor, and its reliable stability directly determines the application effect of the membrane bioreactor. The membrane element is the water-producing component of the flat membrane module and an important component of the flat membrane module. The performance of the membrane element directly determines the performance of the flat membrane module; different brands of membrane elements are provided with performance parameters when they leave the factory. The performance parameters are obtained by the manufacturer through sampling in the laboratory. Different test equipment and test environment will cause deviations in performance parameters.

[0004] Therefore, it is necessary to provide a membrane element comparison test system to realize the performance test of different membrane elements under the same conditions, so as to improve the accuracy of the performance test results and facilitate the selection of membrane elements. The membrane element comparison experimental device is an important part of the membrane element comparison test system. Utility Model Content

[0005] The utility model provides a membrane element comparison experimental device, wherein a membrane support realizes equal spacing arrangement of membrane element samples, an aeration box provides the same aeration environment for the membrane element samples, and provides the same test conditions for different membrane elements, so as to improve the accuracy of performance test results.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A membrane element comparison experimental device, comprising:

[0008] A membrane support, suitable for supporting and fixing a plurality of membrane element samples;

[0009] an aeration box, arranged below the membrane support, suitable for aerating the membrane element sample fixed on the membrane support;

[0010] Wherein, the membrane support comprises two symmetrically arranged support units, the support unit comprises a side fixing frame and a bottom support, the side fixing frames of the two support units are arranged opposite to each other, and a plurality of fixing units for fixing the membrane element samples are arranged between the two side fixing frames; the fixing unit comprises a fixing screw, a plurality of movable fixing blocks and a plurality of locking nuts, the movable fixing block is inserted on the fixing screw, the locking nut is inserted on the fixing screw, and the locking nut is suitable for locking the position of the movable fixing block to clamp the membrane element samples and arrange the membrane element samples at equal intervals;

[0011] Optionally, the aeration box includes an aeration frame and an aeration pipeline and a perforated aerator arranged in the aeration frame, the aeration pipeline is connected to an air inlet pipe, the perforated aerator is connected to the aeration pipeline, and the perforated aerator is arranged in parallel with the membrane element sample.

[0012] Optionally, a plurality of the fixing units are respectively disposed at two ends of the side fixing frame and are spaced apart along a height direction of the side fixing frame.

[0013] Optionally, both ends of the fixing screw respectively pass through the two side fixing frames, the movable fixing block and the locking nut are located between the two side fixing frames, and the movable fixing block is suitable for arranging multiple membrane element samples at equal intervals along the length direction of the fixing screw.

[0014] Optionally, the aeration pipeline includes an aeration inlet pipe and an aeration circulation pipe, the aeration inlet pipe and the aeration circulation pipe are longitudinally arranged at both ends of the aeration frame respectively, the perforated aerator is transversely arranged to connect the aeration inlet pipe and the aeration circulation pipe, and the air inlet pipe is connected to the aeration inlet pipe.

[0015] Optionally, there are multiple perforated aerators, and the multiple perforated aerators are arranged in parallel.

[0016] Optionally, the perforated aerator is a tubular structure, and a plurality of aeration ports are arranged at intervals along the axial direction on one side of the outer wall of the perforated aerator, and the aeration ports are arranged facing the direction of the membrane element sample.

[0017] Optionally, the center height of the aeration pipeline is greater than the center height of the perforated aerator.

[0018] Optionally, the aeration inlet pipe is connected to a mud discharge pipe, the outlet of the mud discharge pipe is lower than the center height of the aeration inlet pipe, and the difference between the outlet height of the mud discharge pipe and the center height of the aeration inlet pipe is 80mm-120mm.

[0019] Optionally, the plurality of membrane element samples include at least two different membrane elements, and the two different membrane elements are of the same number and are arranged alternately on the membrane support.

[0020] Optionally, the side fixing frame and the bottom support are arranged in an L shape, and a frame diagonal support is arranged between the side fixing frame and the bottom support.

[0021] Compared with the prior art, the technical solution of the utility model has beneficial effects.

[0022] For example, in the membrane element comparison experimental device provided by the present invention, the membrane support realizes the equal spacing arrangement of the membrane element samples, and the aeration box provides the same aeration environment for the membrane element samples, providing the same test conditions for different membrane element samples, so as to improve the accuracy of the performance test results.

[0023] For another example, in the membrane element comparison experimental device provided by the present invention, a plurality of perforated aerators of the aeration box are arranged parallel to the membrane element, which is beneficial to sufficient and uniform aeration of the membrane element samples and improves the test efficiency.

[0024] For another example, in the membrane element comparison experimental device provided by the utility model, the center position of the perforated aeration tube is lower than the center position of the aeration pipeline, ensuring the uniformity of air pressure at each point on the perforated aerator, so as to provide the same aeration environment for the membrane element samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a membrane element comparison experimental device in an embodiment of the utility model;

[0026] Figure 2 It is a side view of a membrane element comparison experimental device in an embodiment of the utility model;

[0027] Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0028] Description of reference numerals:

[0029] 1. membrane support; 11. support unit; 111. side fixing frame; 112. bottom support; 113. frame diagonal support; 12. fixing unit; 121. fixing screw; 122. movable fixing block;

[0030] 2. Aeration box; 21. Aeration frame; 22. Aeration pipeline; 221. Aeration air inlet pipe; 222. Aeration circulation pipe; 23. Perforated aerator; 24. Air inlet pipe; 25. Mud discharge pipe;

[0031] 3. Membrane element sample; 31. First membrane element; 32. Second membrane element. DETAILED DESCRIPTION

[0032] In the prior art, membrane elements of different brands are provided with performance parameters when they leave the factory. The performance parameters are obtained by the manufacturer through sampling and testing in the laboratory. Different testing equipment and testing environment may cause deviations in the performance parameters.

[0033] In order to solve the above technical problems, the utility model provides a comparative experimental device for checking membrane elements. The experimental device provides the same test conditions for different membrane elements to improve the accuracy of performance test results.

[0034] In order to make the purpose, features and beneficial effects of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It is understood that the specific embodiments described below are only used to explain the present invention, rather than to limit the present invention. In addition, the same or similar reference numerals may be used in the figures to refer to the same or similar elements in different embodiments, and the description of the same or similar elements in different embodiments and the description of the prior art elements, features, effects, etc. may be omitted.

[0035] Figure 1 It is a structural schematic diagram of a membrane element comparison experimental device in an embodiment of the utility model; Figure 2 It is a side view of a membrane element comparison experimental device in an embodiment of the utility model; Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0036] Reference Figure 1-Figure 3 , an embodiment of the utility model provides a membrane element comparison experimental device.

[0037] Specifically, the experimental device includes:

[0038] A membrane support 1, suitable for supporting and fixing a plurality of membrane element samples 3;

[0039] The aeration box 2 is arranged below the membrane support 1 and is suitable for aerating the membrane element sample 3 fixed on the membrane support 1;

[0040] Wherein, the membrane support 1 includes two symmetrically arranged support units 11, the support unit 11 includes a side fixing frame 111 and a bottom support 112, the side fixing frames 111 of the two support units 11 are arranged opposite to each other, and a plurality of fixing units 12 for fixing the membrane element samples 3 are arranged between the two side fixing frames 111; the fixing unit 12 includes a fixing screw 121, a plurality of movable fixing blocks 122 and a plurality of locking nuts (not shown), the movable fixing block 122 is penetrated on the fixing screw 121, the locking nut is penetrated on the fixing screw 121, and the locking nut is suitable for locking the position of the movable fixing block 122 to clamp the membrane element samples 3, and to arrange the membrane element samples 3 at equal intervals;

[0041] The aeration box 2 includes an aeration frame 21 and an aeration pipeline 22 and a perforated aerator 23 arranged in the aeration frame 21 . The aeration pipeline 22 is connected to an air inlet pipe 24 . The perforated aerator 23 is connected to the aeration pipeline 22 . The perforated aerator 23 is arranged in parallel with the membrane element sample 3 .

[0042] In some embodiments, a plurality of fixing units 12 are respectively disposed at both ends of the side fixing frame 111 and are spaced apart along the height direction of the side fixing frame 111 to achieve multi-point firm fixation of the membrane element sample 3 .

[0043] In some embodiments, both ends of the fixing screw 121 pass through the two side fixing frames 111 respectively, and the movable fixing block 122 and the locking nut are located between the two side fixing frames 111. The movable fixing block 122 is suitable for arranging multiple membrane element samples 3 at equal intervals along the length direction of the fixing screw 121, so as to achieve equal-interval fixation of multiple membrane element samples 3 and make the environment of each membrane element sample 3 consistent.

[0044] In some embodiments, the side fixing frame 111 and the bottom support 112 are arranged in an L shape, and a frame diagonal support 113 is arranged between the side fixing frame 111 and the bottom support 112 to improve the supporting performance of the bracket unit 11 .

[0045] In some embodiments, the aeration pipeline 22 includes an aeration inlet pipe 221 and an aeration circulation pipe 222, which are longitudinally arranged at both ends of the aeration frame 21 respectively, and the perforated aerator 23 is transversely arranged to connect the aeration inlet pipe 221 and the aeration circulation pipe 222, and the air inlet pipe 24 is connected to the aeration inlet pipe 221.

[0046] In some embodiments, there are multiple perforated aerators 23, and the multiple perforated aerators 23 are arranged in parallel, which is conducive to sufficient and uniform aeration of the membrane element sample 3 and improves the test efficiency. The number of perforated aerators 23 is adjusted according to the number of membrane element samples 3 actually compared. Usually, two brands of three membrane elements are used for comparative experiments, and four perforated aerators with an inner diameter of 15 mm are required, and the spacing between them is between 60 mm and 120 mm.

[0047] In some embodiments, the perforated aerator 23 is a tubular structure, and a plurality of aeration ports are axially spaced apart on one side of the outer wall of the perforated aerator 23. The aeration ports are arranged facing the membrane element sample 3, which is beneficial to sufficient and uniform aeration of the membrane element sample 3 and improves the test efficiency.

[0048] In some embodiments, the center height of the aeration pipeline 22 is greater than the center height of the perforated aerator 23 , so as to ensure the uniformity of air pressure at each point on the perforated aerator 23 , thereby facilitating providing the same aeration environment to the membrane element samples 3 .

[0049] In some embodiments, the aeration inlet pipe 221 is connected to the mud discharge pipe 25, the outlet of the mud discharge pipe 25 is lower than the center height of the aeration inlet pipe 221, and the difference between the outlet height of the mud discharge pipe 25 and the center height of the aeration inlet pipe 221 is 80mm-120mm, ensuring that most of the gas volume will not overflow from the mud discharge pipe 25 during aeration, while stabilizing the air pressure and gas volume of the aeration pipeline 22.

[0050] In some embodiments, the multiple membrane element samples 3 include at least two different membrane elements. The number of membrane element samples 3 can be determined according to actual needs. Usually, three pieces of two different membrane elements are used for comparative experiments, including a first membrane element 31 and a second membrane element 32. The first membrane element 31 and the second membrane element 32 are the same in number and are arranged alternately on the membrane support 1, thereby ensuring that different membrane elements are subjected to comparative experiments under the same conditions and ensuring the consistency of the experimental data.

[0051] In summary, in the membrane element comparison experimental device provided by the utility model, the membrane support 1 realizes the equal spacing arrangement of the membrane element samples 3, and the aeration box 2 provides the same aeration environment for the membrane element samples 3, and provides the same test conditions for different membrane elements, so as to improve the accuracy of the performance test results.

[0052] Furthermore, in the membrane element comparison experimental device provided by the present invention, the multiple perforated aerators 23 of the aeration box 2 are arranged parallel to the membrane element sample 3, which is conducive to sufficient and uniform aeration of the membrane element sample 3 and improves the test efficiency.

[0053] Furthermore, in the membrane element comparison experimental device provided by the utility model, the center position of the perforated aeration tube 23 is lower than the center position of the aeration pipeline 22, ensuring the uniformity of the air pressure at each point on the perforated aerator 23, so as to provide the same aeration environment for the membrane element samples 3.

[0054] Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the present disclosure, even when only a single embodiment is described with respect to specific features. The feature examples provided in the present disclosure are intended to be illustrative rather than limiting, unless otherwise stated. In specific implementations, the technical features of one or more dependent claims may be combined with the technical features of the independent claim, based on actual needs and where technically feasible, and may be derived from the technical features of the corresponding independent claim in any appropriate manner rather than simply through the specific combination listed in the claims.

[0055] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.

Claims

1. A membrane element comparison experimental device, characterized in that: include: A membrane support, suitable for supporting and fixing a plurality of membrane element samples; an aeration box, arranged below the membrane support, suitable for aerating the membrane element sample fixed on the membrane support; Wherein, the membrane support comprises two symmetrically arranged support units, the support unit comprises a side fixing frame and a bottom support, the side fixing frames of the two support units are arranged opposite to each other, and a plurality of fixing units for fixing the membrane element samples are arranged between the two side fixing frames; the fixing unit comprises a fixing screw, a plurality of movable fixing blocks and a plurality of locking nuts, the movable fixing block is inserted on the fixing screw, the locking nut is inserted on the fixing screw, and the locking nut is suitable for locking the position of the movable fixing block to clamp the membrane element samples and arrange the membrane element samples at equal intervals; The aeration box comprises an aeration frame, an aeration pipeline and a perforated aerator arranged in the aeration frame, the aeration pipeline is connected to an air inlet pipe, the perforated aerator is connected to the aeration pipeline, and the perforated aerator is arranged in parallel with the membrane element sample.

2. The membrane element comparison experimental device according to claim 1 is characterized in that: The plurality of fixing units are respectively arranged at two ends of the side fixing frame and are spaced apart along a height direction of the side fixing frame.

3. The membrane element comparison experimental device according to claim 1 is characterized in that: Both ends of the fixing screw respectively pass through the two side fixing frames, the movable fixing block and the locking nut are located between the two side fixing frames, and the movable fixing block is suitable for arranging multiple membrane element samples at equal intervals along the length direction of the fixing screw.

4. The membrane element comparison experimental device according to claim 1 is characterized in that: The aeration pipeline includes an aeration inlet pipe and an aeration circulation pipe, the aeration inlet pipe and the aeration circulation pipe are respectively arranged longitudinally at both ends of the aeration frame, the perforated aerator is arranged transversely to connect the aeration inlet pipe and the aeration circulation pipe, and the air inlet pipe is connected to the aeration inlet pipe.

5. The membrane element comparison experimental device according to claim 1 is characterized in that: There are multiple perforated aerators, and the multiple perforated aerators are arranged in parallel.

6. The membrane element comparison experimental device according to claim 1 is characterized in that: The perforated aerator is in a tubular structure, and a plurality of aeration ports are arranged at intervals along the axial direction on one side of the outer wall of the perforated aerator, and the aeration ports are arranged facing the direction of the membrane element sample.

7. The membrane element comparison experimental device according to claim 1 is characterized in that: The center height of the aeration pipeline is greater than the center height of the perforated aerator.

8. The membrane element comparison experimental device according to claim 4 is characterized in that: The aeration air inlet pipe is connected to a mud discharge pipe, the outlet of the mud discharge pipe is lower than the center height of the aeration air inlet pipe, and the difference between the outlet height of the mud discharge pipe and the center height of the aeration air inlet pipe is 80mm-120mm.

9. The membrane element comparison experimental device according to claim 1, characterized in that: The plurality of membrane element samples include at least two different membrane elements, and the two different membrane elements are of the same number and are arranged alternately on the membrane support.

10. The membrane element comparison experimental device according to claim 1, characterized in that: The side fixing frame and the bottom support are arranged in an L shape, and a frame diagonal support is arranged between the side fixing frame and the bottom support.