Bio-based succinic acid membrane separation device

Abstract

The utility model discloses a kind of bio-based succinic acid membrane separation devices, including multiple membrane separation units arranged along longitudinal direction, the top of the uppermost layer membrane separation unit is connected with cross type liquid collecting pipe, and membrane separation unit includes two H type liquid collecting pipes symmetrically arranged, multiple flat sheet membranes are installed between two H type liquid collecting pipes, H type liquid collecting pipe includes horizontal pipe, the bottom of horizontal pipe is connected with two longitudinal pipes vertically arranged, the top of horizontal pipe is connected with two cannula vertically arranged, and the center line of cannula and longitudinal pipe is arranged in line with each other. The membrane separation device provided by the utility model can conveniently assemble and disassemble flat sheet membranes and membrane separation units, flexibly increase or reduce the number of units, optimize separation efficiency, and facilitate accurate positioning of faulty units.

Description

Technical Field

[0001] This utility model relates to a bio-based succinic acid membrane separation device, belonging to the field of membrane separation technology. Background Technology

[0002] Succinic acid, widely found in organisms, is an important dicarboxylic acid and a key metabolite in the microbial tricarboxylic acid cycle and glycolysis pathway. Its synthesis has been achieved through traditional chemical synthesis methods and novel bio-fermentation methods. Bio-fermentation, with its inexpensive raw materials and ability to fix carbon dioxide, has become a hot topic in organic acid research in recent years.

[0003] Currently, ceramic membrane separation devices are used in the pretreatment stage of the bio-based succinic acid separation and purification process. The physical sieving effect of the ceramic membrane is used to remove bacteria, macromolecular impurities and suspended particles from the fermentation broth, creating favorable conditions for subsequent more refined separation steps (such as nanofiltration, electrodialysis, reverse osmosis or crystallization).

[0004] To improve separation efficiency, ceramic membrane separation devices typically consist of multiple membrane separation units, each containing multiple flat sheet membranes. The assembly and disassembly of these flat sheet membranes, as well as the connection between adjacent membrane separation units, generally rely on bolts, making the process rather cumbersome.

[0005] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0006] This invention addresses the shortcomings of the prior art by providing a bio-based succinic acid membrane separation device, which facilitates the assembly and disassembly of flat sheet membranes and membrane separation units, allows for flexible increases or decreases in the number of units, optimizes separation efficiency, and facilitates precise location of faulty units.

[0007] To solve the above technical problems, the present invention adopts the following technical solution:

[0008] The bio-based succinic acid membrane separation device includes multiple membrane separation units arranged longitudinally. The top of the uppermost membrane separation unit is connected to a cross-shaped collection tube. Each membrane separation unit includes two symmetrically arranged H-shaped collection tubes, with multiple flat membranes installed between the two H-shaped collection tubes. Each H-shaped collection tube includes a transverse tube, with two longitudinal tubes perpendicular to it connected to the bottom of the transverse tube, and two insertion tubes perpendicular to it connected to the top of the transverse tube. The center lines of the insertion tubes and the longitudinal tubes are collinear.

[0009] Furthermore, the transverse tube is connected to the inner cavity of the longitudinal tube; the insertion tube is connected to the inner cavity of the transverse tube.

[0010] Furthermore, a liquid outlet connector is provided at each of the two ends of the flat membrane along its length.

[0011] Furthermore, the side wall of the transverse tube is provided with a row of equally spaced interfaces for inserting the liquid outlet connector.

[0012] Furthermore, the flat sheet membrane is an immersed ceramic flat sheet membrane.

[0013] Furthermore, the cannula can be inserted longitudinally into the bottom of the upper longitudinal tube, and two O-rings are embedded in the cannula.

[0014] Furthermore, the bottom end of the longitudinal tube of the lowest membrane separation unit is sealed by a plug plate.

[0015] Furthermore, the cross-shaped liquid collection tube is formed by vertically splicing two straight tubes, with the inner cavities of the two straight tubes connected. An outlet port is provided above the middle position of the cross-shaped liquid collection tube.

[0016] Furthermore, the bottom of the cross-shaped collection tube is provided with a socket for tube insertion.

[0017] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0018] The flat sheet membrane and the H-type collection tube are connected by a plug-in connection, which facilitates the easy installation and removal of the membrane separation unit. The flat sheet membrane is easy to maintain and quick to replace.

[0019] Adjacent membrane separation units are assembled in series along the longitudinal direction using a plug-in connection. The number of units connected in series in the longitudinal direction can be flexibly increased or decreased according to filtration requirements to optimize separation efficiency or throughput, and it is also convenient to accurately locate faulty units.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of a flat sheet membrane;

[0024] Figure 4 This is a schematic diagram of the H-type liquid collection tube;

[0025] Figure 5 This is a schematic diagram of a cross-shaped liquid collection tube.

[0026] In the diagram, 1-flat membrane, 11-liquid outlet connector; 2-H-type collection tube, 21-horizontal tube, 22-interface, 23-vertical tube, 24-insertion tube, 25-O-ring; 3-cross-shaped collection tube, 31-socket, 32-liquid outlet port; 4-blocking plate. Detailed Implementation

[0027] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0028] like Figures 1-5 As shown in the figure, this utility model provides a bio-based succinic acid membrane separation device, which includes multiple membrane separation units arranged in a longitudinal direction. The top of the uppermost membrane separation unit is connected to a cross-shaped liquid collection tube 3, which collects and outputs the fermentation broth clarified by the multiple membrane separation units.

[0029] The membrane separation unit includes two symmetrically arranged H-shaped liquid collection tubes 2, and multiple flat membranes 1 are installed between the two H-shaped liquid collection tubes 2.

[0030] A liquid outlet connector 11 is provided at each of the two ends along the length of the flat membrane 1.

[0031] The flat sheet membrane 1 is an immersion ceramic flat sheet membrane (ceramic flat sheet membrane is existing technology). The ceramic flat sheet membrane is a membrane with a uniformly distributed hollow water channel structure inside. The membrane is subjected to external pressure and internal suction. The fermentation broth is filtered and permeated into the internal hollow water channel through the densely distributed micropores on the ceramic membrane wall. The clarified fermentation broth flows out from the outlet connectors 11 at both ends of the membrane. The bacteria, macromolecular impurities and suspended particles in the fermentation broth are trapped on the outside of the membrane.

[0032] The H-shaped liquid collection tube 2 includes a horizontal tube 21, the bottom of which is connected to two vertical tubes 23 arranged perpendicularly thereto, and the inner cavities of the horizontal tube 21 and the vertical tubes 23 are connected in communication; the top of the horizontal tube 21 is connected to two insertion tubes 24 arranged perpendicularly thereto, and the insertion tubes 24 are connected in communication with the inner cavities of the horizontal tube 21.

[0033] The insertion tube 24 and the longitudinal tube 23 are arranged collinearly.

[0034] The side wall of the transverse tube 21 is provided with a row of equally spaced interfaces 22, which are used for the insertion of the liquid outlet connector 11. The plug-in connection facilitates the quick assembly and disassembly of the flat membrane 1 and the H-shaped liquid collection tube 2, that is, facilitates the quick assembly and disassembly of the membrane separation unit.

[0035] The insertion tube 24 can be inserted longitudinally into the bottom of the upper longitudinal tube 23 to achieve communication between adjacent membrane separation units.

[0036] Two O-rings 25 are embedded on the insertion tube 24 to ensure a good seal at the insertion point.

[0037] The bottom end of the longitudinal tube 23 of the lowest membrane separation unit is sealed by a plug plate 4.

[0038] The cross-shaped liquid collection tube 3 is formed by vertically splicing two straight tubes, with the inner cavities of the two straight tubes connected. A liquid outlet port 32 is located above the middle position of the cross-shaped liquid collection tube 3, and a socket 31 for inserting the insertion tube 24 is located at the bottom of the cross-shaped liquid collection tube 3. The socket 31 is used for inserting the insertion tube 24 of the uppermost membrane separation unit.

[0039] The specific working principle of this utility model is as follows:

[0040] This utility model is an immersion filtration and separation structure. When in use, the clean fermentation liquid filtered by the flat membrane 1 enters the H-shaped collection tube 2 from the liquid outlet 11. The clean fermentation liquid flows from bottom to top inside the H-shaped collection tube 2 and finally collects into the cross-shaped collection tube 3 and is discharged from the liquid outlet 32.

[0041] The flat sheet membrane 1 and the H-type collection tube 2 are connected by a plug-in connection, which facilitates the easy assembly and disassembly of the membrane separation unit. The flat sheet membrane 1 is easy to maintain and quick to replace.

[0042] Adjacent membrane separation units are assembled in series along the longitudinal direction (water flow direction) using a plug-in connection. The number of units connected in series longitudinally can be flexibly increased or decreased according to filtration needs to optimize separation efficiency or flux, and it is also convenient to accurately locate faulty units.

[0043] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A bio-based succinic acid membrane separation device, characterized in that: It includes multiple membrane separation units arranged longitudinally, with the top of the uppermost membrane separation unit connected to a cross-shaped collection tube (3); the membrane separation unit includes two symmetrically arranged H-shaped collection tubes (2), and multiple flat membranes (1) are installed between the two H-shaped collection tubes (2); the H-shaped collection tube (2) includes a transverse tube (21), the bottom of the transverse tube (21) is connected to two longitudinal tubes (23) arranged perpendicular to it, and the top of the transverse tube (21) is connected to two insertion tubes (24) arranged perpendicular to it, with the center lines of the insertion tubes (24) and the longitudinal tubes (23) arranged collinearly.

2. The bio-based succinic acid membrane separation device as described in claim 1, characterized in that: The transverse tube (21) is connected to the inner cavity of the longitudinal tube (23); the insertion tube (24) is connected to the inner cavity of the transverse tube (21).

3. The bio-based succinic acid membrane separation device as described in claim 1, characterized in that: The flat membrane (1) has a liquid outlet connector (11) at each of its two ends along the length direction.

4. The bio-based succinic acid membrane separation device as described in claim 3, characterized in that: The transverse tube (21) has a row of equally spaced interfaces (22) on its side wall, which are used for inserting the liquid outlet connector (11).

5. The bio-based succinic acid membrane separation device as described in claim 1, characterized in that: The flat sheet membrane (1) is an immersed ceramic flat sheet membrane.

6. The bio-based succinic acid membrane separation device as described in claim 1, characterized in that: The cannula (24) can be inserted longitudinally into the bottom of the upper longitudinal tube (23), and two O-rings (25) are embedded on the cannula (24).

7. The bio-based succinic acid membrane separation device as described in claim 1, characterized in that: The bottom end of the longitudinal tube (23) of the lowest membrane separation unit is sealed by a plug plate (4).

8. The bio-based succinic acid membrane separation device as described in claim 1, characterized in that: The cross-shaped liquid collection tube (3) is formed by two straight tubes vertically spliced ​​together. The inner cavities of the two straight tubes are connected. An outlet port (32) is provided above the middle position of the cross-shaped liquid collection tube (3).

9. The bio-based succinic acid membrane separation device as described in claim 8, characterized in that: The bottom of the cross-shaped collecting tube (3) is provided with a socket (31) for inserting the tube (24).

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