Rhamnose refining device

Abstract

The rhamnose refining device comprises an integrated bottom frame and an integrated top frame which is symmetrically arranged right above the integrated bottom frame, a plurality of filter cartridge fixing plates A are arranged in a framework of the integrated bottom frame at equal intervals, and a plurality of filter cartridge fixing plates B are arranged in a framework of the integrated top frame at equal intervals. The rhamnose refining device disclosed by the utility model has the beneficial effects that a connecting type pressurizing powerful filtering device is additionally arranged at the front ends, close to the tops, of the plurality of membrane filtering cylinders of the rhamnose refining device, and the rhamnose refining device is mainly used for filtering impurities of a rhamnose solution passing through the rhamnose refining device through nanofiltration membranes in the plurality of membrane filtering cylinders, so that the purity of the rhamnose solution is improved; and the newly added pressurizing powerful filtering device can regularly pressurize the interiors of a plurality of membrane filtering cartridges through a pressurizing pump in a pressurizing pump box, so that the flow velocity of a rhamnose solution in the membrane filtering cartridges can be remarkably improved, and the overall filtering efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of rhamnose refining, in particular to a rhamnose refining device. Background Art

[0002] Rhamnose is an important natural sugar compound that is widely found in many plants and has good biological activity and health benefits. In the fields of biomedicine, food and cosmetics, rhamnose is increasingly attracting attention, and its purification and refining process has become a key link in research and industrial application. Traditional purification methods mostly use chemical precipitation, centrifugation and evaporation. Although they can remove impurities to a certain extent, they are often accompanied by disadvantages such as high energy consumption, long time and large losses. Therefore, it is particularly important to develop an efficient, green and economical rhamnose purification device;

[0003] Membrane filtration technology, particularly nanofiltration, has become an increasingly important means of filtering and purifying liquid materials due to its high selectivity, low energy consumption, and simple operation. Membrane filtration not only effectively removes suspended matter and impurities from solutions but also maintains the integrity of the target product. Consequently, a membrane filtration purification device specifically designed for rhamnose solutions has emerged. This device utilizes multiple membrane filter cartridges in parallel to achieve efficient filtration of large flow rates of rhamnose solutions, optimizing filtration performance and quality. This technology utilizes an integrated bottom and top frame structure, with the membrane filter cartridges and inlet and outlet pipes strategically arranged. This allows the rhamnose solution to be evenly distributed through the well-designed flow path, ensuring that each membrane filter cartridge is fully functional. Furthermore, the design of the bottom and top sealing caps effectively prevents liquid leakage, ensuring the system's tightness and safety. This novel rhamnose refining device not only improves filtration efficiency and shortens refining time, but also facilitates subsequent purification processes.

[0004] However, when the rhamnose refining device is refining rhamnose, it is particularly important to filter and purify the rhamnose solution through a membrane filtration device. When using a membrane filter cartridge to filter and purify the rhamnose solution, the rhamnose solution needs to be transported to the membrane filter cartridge. The membrane filter cartridge will filter the impurities of the rhamnose solution through the internal nanofiltration membrane to achieve the purpose of purification. After the nanofiltration membrane inside the membrane filter cartridge has been used for a period of time, because the nanofiltration membrane filters a lot of impurities, many impurities will remain in the membrane filter cartridge, which will cause excessive impurities and affect the filtering and purification effect of the nanofiltration membrane on the rhamnose solution. At the same time, it will also cause the purity of the rhamnose solution after filtration and purification to be relatively low, which will affect the subsequent refining effect of rhamnose. Utility Model Content

[0005] The main purpose of the utility model is to propose a rhamnose refining device, which aims to solve the problem that after the nanofiltration membrane inside the membrane filter cartridge has been used for a period of time, many impurities will remain in the membrane filter cartridge because the nanofiltration membrane filters a large number of impurities. This will cause excessive impurities and affect the filtration and purification effect of the nanofiltration membrane on the rhamnose solution, and will also cause the purity of the rhamnose solution after filtration and purification to be relatively low.

[0006] In order to solve the above problems, the utility model proposes a rhamnose refining device, including an integrated bottom frame and an integrated top frame symmetrically arranged directly above the integrated bottom frame, a plurality of filter cartridge fixing plates A are equidistantly arranged inside the integrated bottom frame, a plurality of filter cartridge fixing plates B are equidistantly arranged inside the integrated top frame, the plurality of filter cartridge fixing plates A correspond one to one with the plurality of filter cartridge fixing plates B, and a membrane filter cartridge is connected between the corresponding filter cartridge fixing plates A and the filter cartridge fixing plates B, and a boosting and high-efficiency filtration device is connected to the upper front end of the center of the plurality of membrane filter cartridges.

[0007] In one embodiment, the boosting and efficient filtration device includes a one-way valve tube, a boosting tube, a sealing connection sleeve and a boosting pump box. A one-way valve tube is provided on the upper side of the front center of each of the multiple membrane filter cartridges, and the one-way valve tube is close to the top of the membrane filter cartridge. A boosting tube is provided on the front side of each of the multiple one-way valve tubes, and a plurality of sealing connection sleeves are provided at the rear end of the boosting tube. The plurality of sealing connection sleeves correspond one-to-one to the plurality of one-way valve tubes, and the sealing connection sleeve is sleeved on the outside of the front end of the one-way valve tube. A boosting pump box is provided at the top right end of the integrated top frame.

[0008] In one embodiment, the one-way valve tube allows gas to enter the interior of the membrane filter cartridge, but the gas and liquid inside the membrane filter cartridge cannot enter the one-way valve tube. The left end of the booster tube is sealed, and the connection between the one-way valve tube and the sealing connecting sleeve is also encrypted with sealant.

[0009] In one embodiment, the boosting and high-efficiency filtering device also includes an air outlet, an air inlet and an air filter. The air outlet is provided at the top front end of the boosting pump box, the air inlet is provided at the rear side of the right end center of the boosting pump box, and the air filter is provided at the right end of the air inlet.

[0010] In one embodiment, a booster pump is fixed inside the booster pump box through a fixing frame, the outlet pipe of the booster pump is connected to the air outlet, the inlet pipe of the booster pump is connected to the air inlet, and the right end of the booster pipe is sealed and sleeved on the outside of the air outlet.

[0011] In one embodiment, supporting connecting columns are connected between the four corners of the integrated bottom frame and the integrated top frame, and supporting pillars are provided at the four corners of the bottom end of the integrated bottom frame. The bottom ends of the two supporting pillars at the bottom of the left end of the integrated bottom frame and the bottom ends of the two supporting pillars at the bottom of the right end are provided with supporting frames.

[0012] In one embodiment, filter cartridge sleeve holes are provided inside the filter cartridge fixing plate A and the filter cartridge fixing plate B, and the filter cartridge fixing plate A and the filter cartridge fixing plate B are both sleeved on the outside of the membrane filter cartridge through the filter cartridge sleeve holes, and the filter cartridge fixing plate A and the filter cartridge fixing plate B are fixedly connected to the membrane filter cartridge by screws.

[0013] In one embodiment, the bottom ends of the multiple membrane filter cartridges are sealed with filter cartridge bottom sealing covers, the bottom ends of the multiple filter cartridge bottom sealing covers are provided with liquid outlets, the lower sides of the multiple filter cartridge bottom sealing covers are provided with liquid main pipes, the tops of the liquid main pipes are provided with multiple liquid outlet branch pipes, and the multiple liquid outlet branch pipes are sealed and connected to the multiple liquid outlets respectively.

[0014] In one embodiment, the top ends of the plurality of membrane filter cartridges are sealed with filter cartridge top sealing covers, the top ends of the plurality of filter cartridge top sealing covers are provided with liquid inlets, the upper sides of the plurality of filter cartridge top sealing covers are provided with liquid inlet main pipes, the bottom ends of the liquid inlet main pipes are provided with multiple liquid inlet branch pipes, and the multiple liquid inlet branch pipes are sealed with multiple liquid inlets respectively.

[0015] In one embodiment, the right end of the liquid outlet main pipe and the left end of the liquid inlet main pipe are both sealed, and the left side of the liquid outlet main pipe and the right end of the liquid inlet main pipe are both provided with external flanges. The liquid inlet main pipe is connected to the rhamnose solution supply pipe to be filtered through the external flange and screws, and the liquid outlet main pipe is connected to the filtered rhamnose collection pipe through the external flange and screws.

[0016] Beneficial effects: The technical solution of the present invention is to add a connected pressurized and efficient filtering device near the top front end of multiple membrane filter cartridges of the rhamnose refining device. The rhamnose refining device mainly filters impurities from the rhamnose solution passing through the nanofiltration membrane inside the multiple membrane filter cartridges to purify the purity of the rhamnose solution, which is crucial for refining rhamnose. The newly added pressurized and efficient filtering device can regularly pressurize the inside of the multiple membrane filter cartridges through the booster pump inside the booster pump box, which can significantly increase the flow rate of the rhamnose solution inside the membrane filter cartridge, thereby effectively increasing the overall filtration efficiency. The higher flow rate makes the filtration process of the rhamnose solution faster, which can save operation time and improve production efficiency. In addition, pressurizing the membrane filter cartridge by the pressurized and efficient filtering device can create higher fluid dynamics on the liquid inlet side of the membrane and reduce the concentration phenomenon on the membrane surface, which helps to reduce membrane pollution and extend the service life of the membrane, so as to increase the filtration and purification effect and efficiency of the rhamnose solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the frontal three-dimensional structure of a rhamnose refining device of the utility model;

[0019] Figure 2 This is a front view schematic diagram of the planar structure of a rhamnose refining device of the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the pressurized and efficient filtering device of the present invention;

[0021] Figure 4 It is a front view planar structural diagram of the pressurized and efficient filtering device of the present invention.

[0022] The following are the descriptions of the reference numerals:

[0023] 1. Install the base frame; 2. Install the support pillars; 3. Integrated bottom frame; 4. Filter cartridge fixing plate A; 5. Sealing cover at the bottom of the filter cartridge; 6. Liquid outlet branch pipe; 7. Liquid outlet main pipe; 8. Support connecting column; 9. Membrane filter cartridge; 10. Integrated top frame; 11. Sealing cover at the top of the filter cartridge; 12. Liquid inlet branch pipe; 13. Filter cartridge fixing plate B; 14. Liquid inlet main pipe; 15. Pressurized high-efficiency filtration device; 16. One-way valve pipe; 17. Boosting pipe; 18. Sealing connecting sleeve; 19. Boosting pump box; 20. Air outlet; 21. Air inlet; 22. Air filter. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0026] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] The utility model provides Figure 1-4 The rhamnose refining device shown in the figure includes an integrated bottom frame 3 and an integrated top frame 10 symmetrically arranged just above the integrated bottom frame 3. A plurality of filter cartridge fixing plates A4 are equidistantly arranged inside the integrated bottom frame 3, and a plurality of filter cartridge fixing plates B13 are equidistantly arranged inside the integrated top frame 10. The plurality of filter cartridge fixing plates A4 correspond to the plurality of filter cartridge fixing plates B13 one by one, and a membrane filter cartridge 9 is connected between the corresponding filter cartridge fixing plates A4 and the filter cartridge fixing plates B13. Support connecting columns 8 are connected between the four corners of the integrated bottom frame 3 and the integrated top frame 10. Support pillars 2 are provided at the four corners of the bottom end of the integrated bottom frame 3. The bottom ends of the two support pillars 2 at the bottom of the left end of the integrated bottom frame 3 and the bottom ends of the two support pillars 2 at the bottom of the right end are provided with a mounting base 1. The filter cartridge fixing plate A4 is a plurality of filter cartridge fixing plates B13. The filter cartridge fixing plates A4 are a plurality of filter cartridge fixing plates B13. The membrane filter cartridge 9 is connected between the corresponding filter cartridge fixing plates A4 and the filter cartridge fixing plates B13. Support connecting columns 8 are connected between the four corners of the integrated bottom frame 3 and the integrated top frame 10. Support pillars 2 are provided at the four corners of the bottom end of the integrated bottom frame 3. The bottom ends of the two support pillars 2 at the bottom of the left end and the two support pillars 2 at the bottom of the right end are provided with a mounting base 1. 4 and the filter cartridge fixing plate B13 are both provided with filter cartridge sleeve holes, and the filter cartridge fixing plate A4 and the filter cartridge fixing plate B13 are both sleeved on the outside of the membrane filter cartridge 9 through the filter cartridge sleeve holes, and the filter cartridge fixing plate A4 and the filter cartridge fixing plate B13 are both fixedly connected to the membrane filter cartridge 9 by screws. When the rhamnose refining device is used to filter and purify the rhamnose solution, the rhamnose refining device first needs to be placed on the workshop floor through the placement support 2 at the bottom end of the integrated bottom frame 3 and the placement base frame 1, and then the liquid inlet main pipe 14 needs to be connected to the rhamnose solution supply pipe through the external flange and screws, and then the liquid outlet main pipe 7 needs to be connected to the filtered and purified rhamnose solution collection pipe through the external flange and screws, and then the rhamnose refining device can be started normally for filtering and purifying the rhamnose solution.

[0029] like Figure 1 and Figure 2As shown, the bottom ends of the multiple membrane filter cartridges 9 are sealed with filter cartridge bottom sealing covers 5, the bottom ends of the multiple filter cartridge bottom sealing covers 5 are provided with liquid outlets, the lower sides of the multiple filter cartridge bottom sealing covers 5 are provided with liquid outlet main pipes 7, the top of the liquid outlet main pipe 7 is provided with multiple liquid outlet branch pipes 6, and the multiple liquid outlet branch pipes 6 are respectively sealed with the multiple liquid outlets, the top ends of the multiple membrane filter cartridges 9 are sealed with filter cartridge top sealing covers 11, the tops of the multiple filter cartridge top sealing covers 11 are provided with liquid inlets, the upper sides of the multiple filter cartridge top sealing covers 11 are provided with liquid inlet main pipes 14, the bottom ends of the liquid inlet main pipe 14 are provided with multiple liquid inlet branch pipes 12, and the multiple liquid inlet branch pipes 12 are respectively sealed with the multiple liquid inlets, the right end of the liquid outlet main pipe 7 and the left end of the liquid inlet main pipe 14 are both sealed, and the left side of the liquid outlet main pipe 7 and the right end of the liquid inlet main pipe 14 are both provided There is an external flange, and the liquid inlet main pipe 14 is connected to the rhamnose solution supply pipe to be filtered through the external flange and screws, and the liquid outlet main pipe 7 is connected to the filtered rhamnose collection pipe through the external flange and screws. After the rhamnose refining device is put into use, the rhamnose solution supply pipe will transport the rhamnose solution to be filtered and purified to the liquid inlet main pipe 14, and then the liquid inlet main pipe 14 will evenly transport the rhamnose solution through multiple liquid inlet branch pipes 12 to multiple membrane filter cartridges 9, and the membrane filter cartridges 9 will filter out impurities and suspended matter in the rhamnose solution through the internal nanofiltration membrane, and the rhamnose solution with impurities filtered out will be smoothly transported to the liquid outlet main pipe 7 through multiple liquid outlet branch pipes 6, and then the liquid outlet main pipe 7 will transport the filtered and purified rhamnose solution to the collection pipe to facilitate the next step of refining processing of rhamnose.

[0030] like Figure 1 、 Figure 3 and Figure 4As shown, a boosting and effective filtering device 15 is connected to the front end of the upper center of multiple membrane filter cartridges 9. The boosting and effective filtering device 15 includes a one-way valve tube 16, a boosting tube 17, a sealing connection sleeve 18 and a boosting pump box 19. A one-way valve tube 16 is provided on the upper side of the front center of multiple membrane filter cartridges 9, and the one-way valve tube 16 is close to the top of the membrane filter cartridge 9. A boosting tube 17 is provided on the front side of multiple one-way valve tubes 16, and a plurality of sealing connection sleeves 18 are provided at the rear end of the boosting tube 17. The multiple sealing connection sleeves 18 correspond one-to-one to the multiple one-way valve tubes 16. The sealing connection sleeves 18 are sleeved on the outside of the front end of the one-way valve tube 16. A boosting pump box 19 is provided at the top right end of the integrated top frame 10. The one-way valve tube 16 can be used to allow gas to enter the membrane Inside the filter cartridge 9, the gas and liquid inside the membrane filter cartridge 9 cannot enter the one-way valve tube 16. The left end of the boosting tube 17 is sealed, and the connection between the one-way valve tube 16 and the sealing connecting sleeve 18 is also encrypted with sealant. The encryption treatment can avoid gas leakage during pressurization. During pressurization, the boosting pump will transport the air to the reverse valve tube through the boosting tube 17, and then pressurize the interior of multiple membrane filter cartridges 9 through the one-way valve tube 16 to achieve the effect of enhanced filtration. Because of the design of the reverse valve tube, the air inside the membrane filter cartridge 9 and the rhamnose solution can be prevented from leaking into the boosting tube 17, ensuring that the membrane filter cartridge 9 can filter and purify the rhamnose solution normally and smoothly.

[0031] like Figure 1 、 Figure 3 and Figure 4 As shown, the pressurized high-efficiency filtering device 15 also includes an air outlet 20, an air inlet 21 and an air filter 22. The air outlet 20 is provided on the top front end of the booster pump box 19, and the air inlet 21 is provided on the rear side of the right end center of the booster pump box 19. The air filter 22 is provided on the right end of the air inlet 21. The booster pump is fixed inside the booster pump box 19 through a fixing frame, the air outlet pipe of the booster pump is connected to the air outlet 20, and the air inlet pipe of the booster pump is connected to the air inlet 21. The right end of the booster pipe 17 is sealed and sleeved on the outside of the air outlet 20. Multiple membrane filter cartridges 9 are synchronously pressurized through multiple reverse valve pipes to ensure uniform flow of liquid in each cartridge. , making the treatment effect more consistent during the filtration process, pressurized filtration can remove impurities more efficiently, achieve higher purity of rhamnose solution, and improve product quality, and the application of the one-way valve can effectively prevent backflow, ensuring that the liquid can only flow into the membrane filter cartridge 9 after pressurization, protecting the overall safety of the system, and the air filter 22 at the air inlet 21 of the pressure pump box can ensure the cleanliness of the air entering the pump, avoiding pollution caused by the air intake in the system, and increasing the reliability of the overall system. This can not only improve the filtration efficiency, but also reduce membrane pollution, reduce the cleaning frequency and maintenance costs, and save water resources and chemical consumption.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A rhamnose refining device, comprising an integrated bottom frame (3) and an integrated top frame (10) symmetrically arranged directly above the integrated bottom frame (3), wherein a plurality of filter cartridge fixing plates A (4) are equidistantly arranged inside the integrated bottom frame (3), and a plurality of filter cartridge fixing plates B (13) are equidistantly arranged inside the integrated top frame (10), characterized in that: The plurality of filter cartridge fixing plates A (4) and the plurality of filter cartridge fixing plates B (13) correspond one to one, and a membrane filter cartridge (9) is connected between the corresponding filter cartridge fixing plates A (4) and the filter cartridge fixing plates B (13), and a pressurized high-efficiency filter device (15) is connected to the front end of the upper side of the center of the plurality of membrane filter cartridges (9).

2. A rhamnose refining device according to claim 1, characterized in that, The pressurized high-efficiency filtration device (15) includes a one-way valve tube (16), a boosting tube (17), a sealing connection sleeve (18) and a boosting pump box (19). A one-way valve tube (16) is provided on the upper side of the front center of the plurality of membrane filter cartridges (9), and the one-way valve tube (16) is close to the top of the membrane filter cartridge (9). A boosting tube (17) is provided on the front side of the plurality of one-way valve tubes (16). A plurality of sealing connection sleeves (18) are provided at the rear end of the boosting tube (17). The plurality of sealing connection sleeves (18) correspond to the plurality of one-way valve tubes (16) one-to-one. The sealing connection sleeve (18) is sleeved on the outside of the front end of the one-way valve tube (16). A boosting pump box (19) is provided at the top right end of the integrated top frame (10).

3. A rhamnose refining device according to claim 2, characterized in that, The one-way valve tube (16) allows gas to enter the interior of the membrane filter cartridge (9), while gas and liquid inside the membrane filter cartridge (9) cannot enter the one-way valve tube (16). The left end of the booster tube (17) is sealed, and the connection between the one-way valve tube (16) and the sealing connection sleeve (18) is also encrypted with sealant.

4. A rhamnose refining device according to claim 3, characterized in that: The boosting and high-efficiency filtering device (15) further comprises an air outlet (20), an air inlet (21) and an air filter (22); the air outlet (20) is provided at the top of the front end of the boosting pump box (19); the air inlet (21) is provided at the rear side of the center of the right end of the boosting pump box (19); and the air filter (22) is provided at the right end of the air inlet (21).

5. A rhamnose refining device according to claim 4, characterized in that: A booster pump is fixed inside the booster pump box (19) via a fixing frame, an air outlet pipe of the booster pump is connected to the air outlet (20), an air inlet pipe of the booster pump is connected to the air inlet (21), and the right end of the booster pipe (17) is sealed and sleeved outside the air outlet (20).

6. The rhamnose refining device according to claim 1, characterized in that: Support connection columns (8) are connected between the four corners of the integrated bottom frame (3) and the integrated top frame (10), and placement pillars (2) are provided at the four corners of the bottom end of the integrated bottom frame (3). The bottom ends of the two placement pillars (2) at the bottom of the left end of the integrated bottom frame (3) and the bottom ends of the two placement pillars (2) at the bottom of the right end are provided with placement base frames (1).

7. The rhamnose refining device according to claim 1, characterized in that: The filter cartridge fixing plate A (4) and the filter cartridge fixing plate B (13) are both provided with filter cartridge sleeve holes inside, and the filter cartridge fixing plate A (4) and the filter cartridge fixing plate B (13) are both sleeved on the outside of the membrane filter cartridge (9) through the filter cartridge sleeve holes, and the filter cartridge fixing plate A (4) and the filter cartridge fixing plate B (13) are both fixedly connected to the membrane filter cartridge (9) by screws.

8. The rhamnose refining device according to claim 7, characterized in that: The bottom ends of the plurality of membrane filter cartridges (9) are all sealedly sleeved with filter cartridge bottom sealing covers (5), the bottom ends of the plurality of filter cartridge bottom sealing covers (5) are all provided with liquid outlets, the lower sides of the plurality of filter cartridge bottom sealing covers (5) are provided with liquid outlet main pipes (7), the top ends of the liquid outlet main pipes (7) are provided with a plurality of liquid outlet branch pipes (6), and the plurality of liquid outlet branch pipes (6) are respectively sealedly connected to the plurality of liquid outlets.

9. The rhamnose refining device according to claim 8, characterized in that: The top ends of the plurality of membrane filter cartridges (9) are all sealed with filter cartridge top sealing covers (11), the top ends of the plurality of filter cartridge top sealing covers (11) are all provided with liquid inlets, the upper sides of the plurality of filter cartridge top sealing covers (11) are provided with liquid inlet main pipes (14), the bottom ends of the liquid inlet main pipes (14) are provided with a plurality of liquid inlet branch pipes (12), and the plurality of liquid inlet branch pipes (12) are respectively sealed with the plurality of liquid inlets.

10. The rhamnose refining device according to claim 9, characterized in that: The right end of the liquid outlet main pipe (7) and the left end of the liquid inlet main pipe (14) are both sealed, and the left end of the liquid outlet main pipe (7) and the right end of the liquid inlet main pipe (14) are both provided with external flanges. The liquid inlet main pipe (14) is connected to the supply pipe of the rhamnose solution to be filtered through the external flange and screws, and the liquid outlet main pipe (7) is connected to the filtered rhamnose collection pipe through the external flange and screws.

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