A membrane filtration dialysate water recycling system for L-hydroxyproline production

Abstract

The utility model belongs to amino acid production equipment technical field relates to a kind of L-hydroxyproline production with membrane filtration dialysis water recycling system, including raw material tank, still including the circulation pipeline consisting of circulating water tank, heat exchanger, membrane filtration equipment, water pump and pipeline, the raw material tank is connected with the input end of membrane filtration equipment by the pipeline with water pump, dialysis water of the membrane filtration equipment, part of material liquid enters next process, part turns to circulating water tank, and is used as membrane filtration water when next production time.This system can recycle L-hydroxyproline membrane filtration dialysis water, can greatly improve the recovery rate of product, reduce the use amount of water resources;Improve the comprehensive yield of L-hydroxyproline, reduce production cost;The system structure is compact, easy to operate, with good market application prospect.

Description

Technical Field

[0001] This utility model belongs to the technical field of amino acid production equipment, and relates to a membrane filtration dialysis water recycling system for L-hydroxyproline production. Background Technology

[0002] L-Hydroxyproline, with the molecular formula C5H9NO3 and a molecular weight of 131.10, is a white, flaky crystal or powder. It is relatively stable at room temperature and pressure, slightly soluble in ethanol, and insoluble in ether. It is a non-essential amino acid, primarily found in animal collagen, where it strengthens the elasticity and resilience of connective tissue. Recent studies have found that L-hydroxyproline plays a crucial role in maintaining the cellular structure and function of plant, animal, and human cells. Due to its unique chemical and physiological structure, L-hydroxyproline has been widely used in medicine, chemical engineering, cosmetics, and disease diagnosis. There are three methods for producing L-hydroxyproline: biological tissue extraction, chemical synthesis, and microbial fermentation. Microbial fermentation is the primary method for L-hydroxyproline production, but it still faces challenges such as high content of impurities, low purity, low yield, high cost, significant environmental pollution from emissions, and difficulty in treating wastewater and waste residue.

[0003] Membrane filtration possesses advantages such as high temperature resistance, good chemical stability, and resistance to microbial attack, making it widely applicable in chemical, biological, and food industries. Using membrane filtration to remove bacterial cells and other macromolecular impurities from fermentation broth can simplify production processes and improve product quality, but it also has drawbacks such as high dialysis water consumption and low product yield. Utility Model Content

[0004] The purpose of this invention is to provide a membrane filtration dialysis water recycling system for L-hydroxyproline production.

[0005] To solve the above-mentioned technical problems, this utility model provides a membrane filtration dialysis water recycling system for L-hydroxyproline production, including a raw material tank and a circulation pipeline consisting of a circulating water tank, a heat exchanger, a membrane filtration device, a water pump, and pipes. The raw material tank is connected to the input end of the membrane filtration device through a pipe with a water pump. Part of the dialysis water from the membrane filtration device enters the next process with the feed liquid, and part of it is transferred to the circulating water tank for use as membrane filtration water in the next production.

[0006] In the above technical solution, the raw material tank is provided with a material inlet and a material outlet; the circulating water tank is provided with a pure water inlet, a circulating water inlet and a circulating water outlet; the heat exchanger is provided with a circulating water heat exchange inlet and a circulating water heat exchange outlet, a hot water inlet and a hot water outlet; and the membrane filtration device is provided with a feed inlet and a discharge outlet.

[0007] In the above technical solution, the outlet of the membrane filtration device is connected to the circulating water inlet of the circulating water tank through a pipe; the circulating water outlet of the circulating water tank is connected to the circulating water heat exchange inlet of the heat exchanger through a pipe; and the circulating water heat exchange outlet of the heat exchanger is connected to the inlet of the membrane filtration device through a pipe.

[0008] In the above technical solution, the material outlet of the raw material tank is connected to the feed inlet of the membrane filtration equipment via a pipeline, and the pipeline is equipped with a first water pump and a first solenoid valve; the discharge outlet of the membrane filtration equipment is connected to the circulating water inlet of the circulating water tank via a pipeline, and the pipeline is equipped with a flow meter and a second solenoid valve; the circulating water outlet of the circulating water tank is connected to the circulating water heat exchange inlet of the heat exchanger via a pipeline, and the pipeline is equipped with a second water pump; the circulating water heat exchange outlet of the heat exchanger is connected to the feed inlet of the membrane filtration equipment via a pipeline, and the pipeline is equipped with a first solenoid valve.

[0009] In the above technical solution, the heat exchanger is a plate heat exchanger with a heating temperature of 50°C.

[0010] In the above technical solution, the pipe connected to the outlet of the membrane filtration equipment is equipped with a second solenoid valve and a flow meter. The second solenoid valve and the flow meter are both electrically connected to the control cabinet. The control cabinet controls the opening and closing state of the second solenoid valve according to the flow rate measured by the flow meter.

[0011] In the above technical solution, the membrane filtration device includes a filter housing and an input filtration module and an output filtration module arranged opposite to each other, wherein:

[0012] The filter housing has module mounting ports on its opposite side walls;

[0013] The input filtering module includes an input cover sealed on a module mounting port on one side, an input cavity disposed inside the input cover, and a plurality of hollow filter rods disposed on one side of the input cover. The hollow filter rods are evenly distributed with filter holes, and the inner hole of the hollow filter rod is connected to the input cavity through the input hole.

[0014] The output filter module includes an output cover sealed on the module mounting port on the other side, an output cavity disposed inside the output cover, a number of hollow filter sleeves disposed on one side of the output cover and correspondingly fitted onto the outside of the hollow filter rod, and a number of hollow filter cylinders disposed on one side of the output cover. The hollow filter sleeves and hollow filter cylinders are evenly distributed with filter holes, and the inner hole of the hollow filter cylinder is connected to the output cavity through the output hole.

[0015] In the above technical solution, an observation window is provided on one side of the filter box, an inlet communicating with the input cavity is provided on the input cover, and an outlet communicating with the output cavity is provided on the output cover.

[0016] In the above technical solution, the hollow filter rods are fixed in an array on one side of the input cover, the hollow filter sleeves are fixed in an array on one side of the output cover, and the hollow filter cylinders are fixed in an array on one side of the output cover.

[0017] In the above technical solution, the outer side of the hollow filter sleeve and the hollow filter cylinder is wrapped with a filter membrane.

[0018] In the above technical solution, a plurality of sealing ring grooves and a plurality of supporting ring grooves are provided on one side of the input cover. The sealing ring grooves are coaxial with the hollow filter rod and surround the hollow filter rod. When the input filter module and the output filter module are sealed and installed on the filter box, the free ends of the hollow filter sleeves are inserted into the sealing ring grooves one by one, and the free ends of the hollow filter cylinders are inserted into the supporting ring grooves one by one.

[0019] The advantages and positive effects of this invention are as follows: the system of this invention can recycle the dialysis water from L-hydroxyproline membrane filtration, which can greatly improve the product recovery rate and reduce the amount of water used; it can improve the overall yield of L-hydroxyproline and reduce production costs; the system has a compact structure, is easy to operate, and has good market application prospects. Attached Figure Description

[0020] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that these drawings are designed for illustrative purposes only and are not intended to limit the scope of this utility model. In addition, unless otherwise specified, these drawings are intended only to conceptually illustrate the structural construction described herein and are not necessarily drawn to scale.

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

[0022] Figure 2 This is a schematic diagram of the membrane filtration device in Example 2;

[0023] Figure 3 The explosion of the membrane filtration equipment in Example 2 Figure 1 ;

[0024] Figure 4 The explosion of the membrane filtration equipment in Example 2 Figure 2 ;

[0025] Figure 5 This is a schematic diagram of a half-section of the membrane filtration device in Example 2. Figure 1 ;

[0026] Figure 6 This is a schematic diagram of a half-section of the membrane filtration device in Example 2. Figure 2 ;

[0027] Figure 7 yes Figure 6 The main view;

[0028] Figure 8 yes Figure 6 Exploded view;

[0029] Figure 9 yes Figure 8 The main view;

[0030] Figure 10 This is a schematic diagram of a half-section of the membrane filtration device in Example 2. Figure 3 ;

[0031] Figure 11 yes Figure 10 The main view;

[0032] Figure 12 yes Figure 10 Exploded view;

[0033] Figure 13 yes Figure 12 The main view;

[0034] In the diagram: 1-Raw material tank; 2-Circulating water tank; 3-Heat exchanger; 4-Membrane filtration equipment; 401-Filter housing; 402-Module mounting port; 403-Input cover; 404-Input cavity; 405-Hollow filter rod; 406-Input hole; 407-Output cover; 408-Output cavity; 409-Hollow filter sleeve; 4010-Hollow filter cylinder; 4011-Output hole; 4012-Observation window; 4013-Feed inlet; 40 14-Discharge port; 4015-Sealing ring groove; 4016-Supporting ring groove; 5-First water pump; 6-Second water pump; 7-First solenoid valve; 8-Flow meter; 9-Second solenoid valve; 10-Material inlet; 11-Material outlet; 12-Pure water inlet; 13-Hot water outlet; 14-Circulating water inlet; 15-Circulating water outlet; 16-Circulating water heat exchanger inlet; 17-Circulating water heat exchanger outlet; 18-Hot water inlet; 19-Control cabinet. Detailed Implementation

[0035] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in these embodiments.

[0036] Please see Figure 1It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to provide a clear understanding of the invention. They are not intended to limit the implementation of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size are not intended to implicate the invention. The following embodiments are provided to better understand this invention, but are not intended to limit it.

[0037] A membrane filtration dialysis water recycling system for L-hydroxyproline production includes a raw material tank 1 and a circulation pipeline consisting of a circulating water tank 2, a heat exchanger 3, a membrane filtration device 4, a water pump, and pipes. The raw material tank 1 is connected to the input end of the membrane filtration device 4 through a pipe with a water pump. Part of the dialysis water from the membrane filtration device 4 enters the next process with the feed liquid, and part is transferred to the circulating water tank 2 for use as membrane filtration water in the next production.

[0038] Furthermore, in this embodiment, the raw material tank 1 is provided with a material inlet 10 and a material outlet 11; the circulating water tank 2 is provided with a pure water inlet 12, a circulating water inlet 14 and a circulating water outlet 15; the heat exchanger 3 is provided with a circulating water heat exchange inlet 16 and a circulating water heat exchange outlet 17, a hot water inlet 18 and a hot water outlet 13; and the membrane filtration device 4 is provided with a feed inlet and a discharge outlet.

[0039] Furthermore, in this embodiment, the material outlet 11 of the raw material tank 1 is connected to the inlet of the membrane filtration device 4 via a pipe, and the pipe is equipped with a first water pump 5 and a first solenoid valve 7; the outlet of the membrane filtration device 4 is connected to the circulating water inlet 14 of the circulating water tank 2 via a pipe, and the pipe is equipped with a flow meter 8 and a second solenoid valve 9; the circulating water outlet 15 of the circulating water tank 2 is connected to the circulating water heat exchange inlet 16 of the heat exchanger 3 via a pipe, and the pipe is equipped with a second water pump 6; the circulating water heat exchange outlet 17 of the heat exchanger 3 is connected to the inlet of the membrane filtration device 4 via a pipe, and the pipe is equipped with a first solenoid valve 7.

[0040] Furthermore, in this embodiment, the heat exchanger 3 can be considered as a plate heat exchanger with a heating temperature of 50°C.

[0041] Furthermore, in this embodiment, the pipe connected to the outlet of the membrane filtration device 4 is equipped with a second solenoid valve 9 and a flow meter 8. Both the second solenoid valve 9 and the flow meter 8 are electrically connected to the control cabinet 19. The control cabinet 19 controls the opening and closing state of the second solenoid valve 9 according to the flow rate measured by the flow meter 8.

[0042] In this embodiment, a membrane filtration dialysis water recycling system for L-hydroxyproline production includes a membrane filtration device 4, a raw material tank 1, a heat exchanger 3, a circulating water tank 2, a flow meter, a solenoid valve, and a water pump. The outlet of the membrane filtration device 4 is connected to the circulating water inlet 14 of the circulating water tank 2 via a pipe; the circulating water outlet 15 of the circulating water tank 2 is connected to the circulating water heat exchange inlet 16 of the heat exchanger 3 via a pipe; and the circulating water heat exchange outlet 17 of the heat exchanger 3 is connected to the feed inlet of the membrane filtration device 4 via a pipe. This system can recycle L-hydroxyproline membrane filtration dialysis water, significantly improving product recovery rate and reducing water consumption; it also increases the overall yield of L-hydroxyproline and reduces production costs. The system is compact, easy to operate, and has good market application prospects. Example 2

[0043] Embodiment 2 of this utility model is a further improvement on Embodiment 1 in order to fully leverage the technical advantages of the present invention. The following is an illustrative example.

[0044] For example: Figure 2-13 As shown, the membrane filtration device 4 includes a filter housing 401 and an input filtration module and an output filtration module arranged opposite to each other, wherein:

[0045] The filter housing 401 has a module mounting port 402 on its opposite side wall;

[0046] The input filtering module includes an input cover 403 sealed and installed on a module mounting port 402 on one side, an input cavity 404 disposed inside the input cover 403, and a plurality of hollow filter rods 405 disposed on one side of the input cover 403. The hollow filter rods 405 are evenly distributed with filter holes, and the inner hole of the hollow filter rod 405 is connected to the input cavity 404 through an input hole 406.

[0047] The output filter module includes an output cover 407 sealed and installed on the module mounting port 402 on the other side, an output cavity 408 disposed inside the output cover 407, a plurality of hollow filter sleeves 409 disposed on one side of the output cover 407 and correspondingly fitted onto the outside of the hollow filter rod 405, and a plurality of hollow filter cylinders 4010 disposed on one side of the output cover 407. The hollow filter sleeves 409 and the hollow filter cylinders 4010 are evenly distributed with filter holes, and the inner hole of the hollow filter cylinder 4010 is connected to the output cavity 408 through an output hole 4011.

[0048] Furthermore, in this embodiment, an observation window 4012 may be provided on one side of the filter housing 401 for observing the condition inside the membrane filtration device.

[0049] Furthermore, in this embodiment, the input cover 403 may be provided with a feed port 4013 communicating with the input cavity 404, and the output cover 407 may be provided with a discharge port 4014 communicating with the output cavity 408.

[0050] Furthermore, in this embodiment, the hollow filter rods 405 are fixed in an array on one side of the input cover 403, the hollow filter sleeves 409 are fixed in an array on one side of the output cover 407, and the hollow filter cylinders 4010 are fixed in an array on one side of the output cover 407.

[0051] Furthermore, in this embodiment, the hollow filter sleeve 409 and the hollow filter cylinder 4010 are wrapped with a filter membrane. The filter membrane is used to filter impurities, and the filtration effect can be guaranteed simply by replacing and cleaning the filter membrane periodically.

[0052] Furthermore, in this embodiment, the aperture of the filter hole of the hollow filter rod 405 is greater than that of the filter hole of the hollow filter sleeve 409, which is greater than that of the filter hole of the hollow filter cylinder 4010. The filter hole diameter gradually decreases to achieve multi-stage filtration. The L-hydroxyproline membrane filtered through the step-by-step filtration can be recycled.

[0053] Furthermore, in this embodiment, one side of the input cover 403 is provided with a plurality of sealing ring grooves 4015 and a plurality of supporting ring grooves 4016. The sealing ring grooves 4015 are coaxial with the hollow filter rod 405 and surround the hollow filter rod 405. When the input filter module and the output filter module are sealed and installed on the filter box 401, the free ends of the hollow filter sleeves 409 are inserted into the sealing ring grooves 4015 one by one, so that the free ends of the hollow filter sleeves 409 are closed and supported. The free ends of the hollow filter cylinders 4010 are inserted into the supporting ring grooves 4016 one by one, so that the free ends of the hollow filter cylinders 4010 are closed and supported.

[0054] like Figure 7 , 9 As shown in Figures 11 and 13, the direction of water flow into the membrane filtration device 4 is indicated by the arrows in the figure. Specifically, the flow direction is: inlet 4013 → input chamber 404 → input hole 406 → filter hole of hollow filter rod 405 → filter hole of hollow filter sleeve 409 → filter hole of hollow filter cylinder 4010 → output hole 4011 → output chamber 408 → outlet 4014. The water flowing through this membrane filtration device 4 will undergo multi-stage filtration. The L-hydroxyproline membrane filtration dialysis water after staged filtration can be recycled.

[0055] The above embodiments have provided a detailed description of the present invention, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made in accordance with the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A membrane filtration dialysis water recycling system for L-hydroxyproline production, characterized in that: The system includes a raw material tank (1) and a circulating pipeline consisting of a circulating water tank (2), a heat exchanger (3), a membrane filtration device (4), a water pump, and pipes. The raw material tank (1) is connected to the input end of the membrane filtration device (4) through a pipe with a water pump. Part of the dialysis water from the membrane filtration device (4) enters the next process with the feed liquid, and part of it is transferred to the circulating water tank (2) to be used as membrane filtration water for the next production.

2. The membrane filtration dialysis water recycling system for L-hydroxyproline production according to claim 1, characterized in that: The raw material tank (1) is provided with a material inlet (10) and a material outlet (11); the circulating water tank (2) is provided with a pure water inlet (12), a circulating water inlet (14) and a circulating water outlet (15); the heat exchanger (3) is provided with a circulating water heat exchange inlet (16) and a circulating water heat exchange outlet (17), a hot water inlet (18) and a hot water outlet (13); the membrane filtration device (4) is provided with a feed inlet and a discharge outlet.

3. The membrane filtration dialysis water recycling system for L-hydroxyproline production according to claim 2, characterized in that: The outlet of the membrane filtration device (4) is connected to the circulating water inlet (14) of the circulating water tank (2) through a pipe; the circulating water outlet (15) of the circulating water tank (2) is connected to the circulating water heat exchange inlet (16) of the heat exchanger (3) through a pipe; and the circulating water heat exchange outlet (17) of the heat exchanger (3) is connected to the feed inlet of the membrane filtration device (4) through a pipe.

4. The membrane filtration dialysis water recycling system for L-hydroxyproline production according to claim 2, characterized in that: The material outlet (11) of the raw material tank (1) is connected to the feed inlet of the membrane filtration device (4) through a pipe. The pipe is equipped with a first water pump (5) and a first solenoid valve (7). The discharge outlet of the membrane filtration device (4) is connected to the circulating water inlet (14) of the circulating water tank (2) through a pipe. The pipe is equipped with a flow meter (8) and a second solenoid valve (9). The circulating water outlet (15) of the circulating water tank (2) is connected to the circulating water heat exchange inlet (16) of the heat exchanger (3) through a pipe. The pipe is equipped with a second water pump (6). The circulating water heat exchange outlet (17) of the heat exchanger (3) is connected to the feed inlet of the membrane filtration device (4) through a pipe. The pipe is equipped with a first solenoid valve (7).

5. The membrane filtration dialysis water recycling system for L-hydroxyproline production according to claim 1, characterized in that: The heat exchanger (3) is a plate heat exchanger with a heating temperature of 50°C.

6. The membrane filtration dialysis water recycling system for L-hydroxyproline production according to claim 1, characterized in that: The pipe connected to the outlet of the membrane filtration device (4) is equipped with a second electromagnetic valve (9) and a flow meter (8). The second electromagnetic valve (9) and the flow meter (8) are both electrically connected to the control cabinet (19). The control cabinet (19) controls the opening and closing state of the second electromagnetic valve (9) according to the flow rate measured by the flow meter (8).

7. The membrane filtration dialysis water recycling system for L-hydroxyproline production according to claim 1, characterized in that: The membrane filtration device (4) includes a filter housing (401) and an input filtration module and an output filtration module arranged opposite to each other, wherein: The filter housing (401) has a module mounting port (402) on its opposite side wall. The input filter module includes an input cover (403) sealed on a module mounting port (402) on one side, an input cavity (404) disposed inside the input cover (403), and a plurality of hollow filter rods (405) disposed on one side of the input cover (403). The hollow filter rods (405) are evenly distributed with filter holes, and the inner hole of the hollow filter rods (405) is connected to the input cavity (404) through the input hole (406). The output filter module includes an output cover (407) sealed on the module mounting port (402) on the other side, an output cavity (408) disposed inside the output cover (407), a number of hollow filter sleeves (409) disposed on one side of the output cover (407) and correspondingly fitted onto the outside of the hollow filter rod (405), and a number of hollow filter cylinders (4010) disposed on one side of the output cover (407). The hollow filter sleeves (409) and the hollow filter cylinders (4010) are evenly distributed with filter holes. The inner hole of the hollow filter cylinder (4010) is connected to the output cavity (408) through the output hole (4011).

8. A membrane filtration dialysis water recycling system for L-hydroxyproline production according to claim 7, characterized in that: The filter box (401) has an observation window (4012) on one side, the input cover (403) has a feed port (4013) communicating with the input cavity (404), and the output cover (407) has a discharge port (4014) communicating with the output cavity (408).

9. A membrane filtration dialysis water recycling system for L-hydroxyproline production according to claim 8, characterized in that: The hollow filter rods (405) are fixed in an array on one side of the input cover (403), the hollow filter sleeves (409) are fixed in an array on one side of the output cover (407), and the hollow filter cylinders (4010) are fixed in an array on one side of the output cover (407).

10. A membrane filtration dialysis water recycling system for L-hydroxyproline production according to claim 9, characterized in that: The hollow filter sleeve (409) and the hollow filter cylinder (4010) are wrapped with filter membranes on their outer sides.

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