Organic membrane separation experiment machine

Abstract

The utility model belongs to the organic membrane separation technical field especially for an organic membrane separation experiment machine, including base, the upper surface one side fixed connection of base has control box, the upper surface other side fixed connection of base has material jar, the surface both sides fixed connection of base have membrane piece one and membrane piece two respectively. The utility model discloses through the setting of membrane piece one and membrane piece two, through opening membrane piece one liquid pipe on the outlet valve and membrane piece one liquid pipe on the feed valve, closing the outlet valve on membrane piece two connecting pipe no.

Description

Technical Field

[0001] This utility model relates to the field of organic membrane separation technology, specifically to an organic membrane separation experimental machine. Background Technology

[0002] Membrane separation technology, as a highly efficient and energy-saving separation technology, has been widely used in biopharmaceutical, food industry, chemical and other fields. In the research and development stage, it is usually necessary to use experimental-scale membrane separation equipment to evaluate and optimize the separation effect of different types of membranes (such as microfiltration, ultrafiltration, nanofiltration and reverse osmosis membranes) in specific feed systems.

[0003] In most existing laboratory membrane separation devices, only one membrane module mounting position is provided. When researchers need to test two or more membranes with different molecular weight cutoffs or materials, they must stop the machine, depressurize, disassemble the pipeline, replace the membrane module, and then reassemble and start it up. This process is not only time-consuming and labor-intensive, but also increases the risk of system contamination, seriously affecting experimental efficiency. Furthermore, during the experiment, pressure and temperature are key parameters affecting membrane performance and lifespan. Traditional small-scale experimental equipment usually relies on manual adjustment and monitoring by operators, lacking automated safety protection mechanisms. Once the operator is negligent, it may cause the system to overpressure or overtemperature, which may cause irreversible damage to expensive membrane elements, or even damage core components such as pumps, or even cause safety accidents. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an organic membrane separation experimental machine. This solves the problem that most current laboratory membrane separation devices only have one membrane module mounting position. When researchers need to test two or more membranes with different molecular weight cutoffs or materials, they must stop the machine, depressurize, disassemble the pipeline, replace the membrane module, and then reassemble and restart it. This process is not only time-consuming and labor-intensive but also increases the risk of system contamination, severely impacting experimental efficiency. Furthermore, during the experiment, pressure and temperature are key parameters affecting membrane performance and lifespan. Traditional small-scale experimental equipment typically relies on manual adjustment and monitoring by operators, lacking automated safety protection mechanisms. Operator negligence can lead to system overpressure or overtemperature, causing irreversible damage to expensive membrane elements, or even damaging core components such as the pump, and potentially triggering a safety accident.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an organic membrane separation experimental machine, comprising a base, a control box fixedly connected to one side of the upper surface of the base, a material tank fixedly connected to the other side of the upper surface of the base, a membrane element one and a membrane element two fixedly connected to both sides of the surface of the base respectively, a concentrated liquid outlet one provided on the upper part of one side of the membrane element one, a concentrated liquid inlet one provided on the lower part of one side of the membrane element one, a concentrated liquid outlet two provided on the upper part of one side of the membrane element two, a concentrated liquid inlet two provided on the upper part of one side of the membrane element two, and a liquid outlet pipe fixedly connected to the concentrated liquid outlet one. One end of the liquid outlet pipe is fixedly connected to the upper surface of the material tank. A connecting pipe is fixedly connected to the second concentrated liquid outlet. One end of the connecting pipe is fixedly connected to one side of the liquid outlet pipe. A discharge valve is installed on one side of the upper surface of both the liquid outlet pipe and the connecting pipe. A pressure regulating valve is installed on the other side of the upper surface of the liquid outlet pipe. A liquid inlet pipe is fixedly connected to both the first and second concentrated liquid inlets. A feed valve is provided on one side of the outer wall of each liquid inlet pipe. A connecting pipe is fixedly connected to one end of each of the two liquid inlets. A discharge pipe is fixedly connected to the lower surface of the material tank. A discharge valve is provided on the outer wall of the discharge pipe.

[0006] As a preferred embodiment of this utility model, a filter is provided on one side of the discharge pipe, a material pump is fixedly connected to one end of the discharge pipe, and one end of the connecting pipe is connected to the material pump.

[0007] As a preferred embodiment of this utility model, a pressure sensor is provided on the outer wall of the connecting pipe II, and a temperature sensor is provided on the outer wall of the discharge pipe.

[0008] As a preferred embodiment of this utility model, the surface of the control box is provided with a power switch and control instruments.

[0009] As a preferred embodiment of this utility model, one end of each of the first and second membrane components is provided with an end cap 1, and the other end of each of the first and second membrane components is provided with an end cap 2. An end cap sealing ring is provided on the adjacent surfaces of the end cap 1 and the end cap 2. A membrane core is provided inside each of the first and second membrane components, and an O-ring is provided on one end of each membrane core. A permeate collection port is provided on the surface of each end cap 2. The end cap 1 and the end cap 2 are connected to the membrane components by bolts.

[0010] As a preferred embodiment of this utility model, a water outlet is provided on the lower part of one side of the material tank, and a water inlet is provided on the upper part of one side of the material tank.

[0011] Compared with the prior art, this utility model provides an organic membrane separation experimental machine, which has the following beneficial effects: 1. This organic membrane separation experimental machine, through the setting of membrane module one and membrane module two, allows material to enter membrane module one through the discharge valve on the outlet pipe and the feed valve on the inlet pipe of membrane module one, while simultaneously closing the discharge valve on the connecting pipe one and the feed valve on the inlet pipe of membrane module two. Inside membrane module one, the liquid undergoes cross-flow filtration on the membrane surface, and small molecules and solvents permeate through the membrane to become permeate. When it is necessary to change to a different type of membrane for the experiment, the discharge valve on the outlet pipe and the feed valve on the inlet pipe of membrane module one are closed, while the discharge valve on the connecting pipe one and the feed valve on the inlet pipe of membrane module two are opened at the same time, and the fluid path is switched to membrane module two, realizing a separation operation similar to that of membrane module one. This enables the rapid switching of different membrane modules for experiments on the same equipment, reducing the risk of cross-contamination.

[0012] 2. This organic membrane separation experimental machine can monitor the pressure and temperature of the circulating liquid in real time by installing pressure and temperature sensors on the connecting pipe 2, and transmit the signals to the control box. In case of abnormal conditions such as overpressure or overtemperature, the controller 8 will immediately execute the command to cut off the power supply of the material pump and stop the equipment from running, effectively preventing damage to the membrane elements and equipment caused by misoperation. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a side view of the present invention; Figure 3 This is a diagram of the unfolded membrane component of this utility model; Figure 4 This is a flowchart illustrating the process of this utility model.

[0014] In the diagram: 1. Base; 2. Control box; 201. Power switch; 202. Control instrument; 3. Material tank; 4. Membrane element one; 5. Membrane element two; A01. End cap one; A02. End cap two; A03. End cap sealing ring; A04. Membrane core; A05. O-ring seal; A06. Permeate collection port; A07. Bolt; 6. Concentrate outlet one; 7. Concentrate inlet one; 8. Concentrate outlet two; 9. Concentrate inlet two; 10. Discharge pipe; 11. Connecting pipe one; 12. Discharge valve; 13. Pressure regulating valve; 14. Inlet pipe; 15. Feed valve; 16. Connecting pipe two; 17. Discharge pipe; 18. Discharge valve; 19. Material pump; 20. Pressure sensor; 21. Temperature sensor; 22. Filter; 23. Water outlet; 24. Water inlet. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example 1 Please see Figure 1-4 In this embodiment: an organic membrane separation experimental machine includes a base 1. A control box 2 is fixedly connected to one side of the upper surface of the base 1, and a material tank 3 is fixedly connected to the other side of the upper surface of the base 1. A first membrane element 4 and a second membrane element 5 are fixedly connected to both sides of the surface of the base 1, respectively. A concentrated liquid outlet 6 is provided on the upper part of one side of the first membrane element 4, and a concentrated liquid inlet 7 is provided on the lower part of one side of the first membrane element 4. A second concentrated liquid outlet 8 is provided on the upper part of one side of the second membrane element 5, and a second concentrated liquid inlet 9 is provided on the upper part of one side of the second membrane element 5. A liquid outlet pipe 10 is fixedly connected to the concentrated liquid outlet 6, and one end of the liquid outlet pipe 10 is fixedly connected to the material tank 3. On the upper surface of the material tank 3, a connecting pipe 11 is fixedly connected to the concentrated liquid outlet 2 8. One end of the connecting pipe 11 is fixedly connected to one side of the liquid outlet pipe 10. A discharge valve 12 is installed on one side of the upper surface of both the liquid outlet pipe 10 and the connecting pipe 11. A pressure regulating valve 13 is installed on the other side of the upper surface of the liquid outlet pipe 10. A liquid inlet pipe 14 is fixedly connected to both the concentrated liquid inlet 1 7 and the concentrated liquid inlet 2 9. A feed valve 15 is provided on one side of the outer wall of the liquid inlet pipe 14. A connecting pipe 2 16 is fixedly connected to one end of both liquid inlet pipes 14. A discharge pipe 17 is fixedly connected to the lower surface of the material tank 3. A discharge valve 18 is provided on the outer wall of the discharge pipe 17. In this embodiment, when using membrane element 4, by opening the discharge valve 12 on the outlet pipe 10 of membrane element 4 and the feed valve 15 on the inlet pipe 14 of membrane element 4, and simultaneously closing the discharge valve 12 on the connecting pipe 11 of membrane element 5 and the feed valve 15 on the inlet pipe 14 of membrane element 5, the material enters membrane element 4 through the discharge valve 12. Inside membrane element 4, the liquid undergoes cross-flow filtration on the membrane surface. Small molecules and solvents permeate through the membrane to become permeate. From the permeate outlet, large molecules are retained. The substance forms a concentrated liquid, which returns to the material tank 3 via the inlet pipe 14 and the connecting pipe 2 14. The whole process forms a cycle of concentration. When it is necessary to change to a different type of membrane for the experiment, the discharge valve 12 on the outlet pipe 10 of membrane component 1 4 and the feed valve 15 on the inlet pipe 14 of membrane component 1 4 are closed. At the same time, the discharge valve 12 on the connecting pipe 11 of membrane component 2 5 and the feed valve 15 on the inlet pipe 14 of membrane component 2 5 are opened. The fluid path is then switched to membrane component 2 5 to achieve a separation operation similar to that of membrane component 1 4. The entire switching process does not require stopping the machine or disassembling any pipeline components, which is extremely convenient.

[0017] Furthermore, a filter 22 is provided on one side of the discharge pipe 17, a material pump 19 is fixedly connected to one end of the discharge pipe 17, and one end of the connecting pipe 16 is connected to the material pump 19; a pressure sensor 20 is provided on the outer wall of the connecting pipe 16, and a temperature sensor 21 is provided on the outer wall of the discharge pipe 17; a power switch 201 and a control instrument 202 are provided on the surface of the control box 2. The feed liquid enters the feed pump 19 from the bottom of the feed tank 3 through a pipeline. After being pressurized, it flows to two inlet pipes 14 controlled by two feed valves 15. A pressure sensor 6 and a temperature sensor 7 are installed on the pipeline after the outlet of the feed pump 19. These two sensors monitor the pressure and temperature of the circulating feed liquid in real time and transmit the signals to the control box 2. The control box 2 has a preset safety threshold. If the system pressure exceeds the preset safety threshold for any reason during the experiment, the control box 2 will immediately execute the command to cut off the power supply to the feed pump 19 and stop the equipment from running, thereby avoiding permanent damage to the membrane element and the pump.

[0018] Preferably, one end of membrane element 4 and membrane element 5 is provided with end cap 1 A01, and the other end of membrane element 4 and membrane element 5 is provided with end cap 2 A02. The adjacent surfaces of end cap 1 A01 and end cap 2 A02 are provided with end cap sealing rings A03. Membrane cores A04 are provided inside membrane element 4 and membrane element 5. One end of membrane core A04 is provided with O-ring sealing rings A05. The surface of end cap 2 A02 is provided with permeate collection port A06. End cap 1 A01 and end cap 2 A02 are connected to the membrane element by bolts A07. A water outlet 23 is provided on the lower part of one side of material tank 3, and a water inlet 24 is provided on the upper part of one side of material tank 3.

[0019] The working principle and usage process of this utility model: The feed liquid enters the feed pump 19 from the bottom of the feed tank 3 through the pipeline. After being pressurized, it flows to the two inlet pipes 14 controlled by two feed valves 15. When membrane element 4 is needed, the discharge valve 12 on the outlet pipe 10 of membrane element 4 and the feed valve 15 on the inlet pipe 14 of membrane element 4 are opened. At the same time, the discharge valve 12 on the connecting pipe 11 of membrane element 2 5 and the feed valve 15 on the inlet pipe 14 of membrane element 2 5 are closed, allowing the material to enter membrane element 4 through the discharge valve 12. Inside membrane element 4, the feed liquid undergoes cross-flow filtration on the membrane surface, resulting in small particles. Substances and solvents permeate through the membrane to form permeate. From the permeate outlet, the retained macromolecules form concentrate, which returns to the material tank 3 via inlet pipe 14 and connecting pipe 2 14. This entire process forms a cyclic concentration. When it is necessary to change to a different type of membrane for the experiment, the discharge valve 12 on the outlet pipe 10 of membrane element 1 4 and the feed valve 15 on the inlet pipe 14 of membrane element 1 4 are closed. Simultaneously, the discharge valve 12 on the connecting pipe 11 of membrane element 2 5 and the feed valve 15 on the inlet pipe 14 of membrane element 2 5 are opened. The fluid path is then switched to membrane element 2 5, achieving a separation operation similar to that of membrane element 1 4. The entire switching process requires no shutdown or disassembly of any pipeline components, making it extremely convenient. Pressure sensor 6 and temperature sensor 7 are installed on the pipeline after the outlet of material pump 19. These two sensors monitor the pressure and temperature of the circulating liquid in real time and transmit the signals to control box 2. Control box 2 has a preset safety threshold. If the system pressure exceeds the preset safety threshold for any reason during the experiment, control box 2 will immediately execute the command to cut off the power to material pump 19, causing the equipment to stop running, thereby avoiding permanent damage to the membrane element and pump.

[0020] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An organic membrane separation experimental machine, comprising a base (1), characterized in that: A control box (2) is fixedly connected to one side of the upper surface of the base (1), and a material tank (3) is fixedly connected to the other side of the upper surface of the base (1). A membrane element one (4) and a membrane element two (5) are fixedly connected to both sides of the surface of the base (1). A concentrated liquid outlet one (6) is provided on the upper part of one side of the membrane element one (4), and a concentrated liquid inlet one (7) is provided on the lower part of one side of the membrane element one (4). A concentrated liquid outlet two (8) is provided on the upper part of one side of the membrane element two (5), and a concentrated liquid inlet two (9) is provided on the upper part of one side of the membrane element two (5). A liquid outlet pipe (10) is fixedly connected to the concentrated liquid outlet one (6), and one end of the liquid outlet pipe (10) is fixedly connected to the upper surface of the material tank (3). The concentrated liquid outlet two (6) 8) A connecting pipe 1 (11) is fixedly connected to the upper part. One end of the connecting pipe 1 (11) is fixedly connected to one side of the liquid outlet pipe (10). A discharge valve (12) is installed on one side of the upper surface of the liquid outlet pipe (10) and the connecting pipe 1 (11). A pressure regulating valve (13) is installed on the other side of the upper surface of the liquid outlet pipe (10). A liquid inlet pipe (14) is fixedly connected to both the first liquid inlet (7) and the second liquid inlet (9). A feed valve (15) is provided on one side of the outer wall of the liquid inlet pipe (14). A connecting pipe 2 (16) is fixedly connected to one end of the two liquid inlet pipes (14). A discharge pipe (17) is fixedly connected to the lower surface of the material tank (3). A discharge valve (18) is provided on the outer wall of the discharge pipe (17).

2. The organic membrane separation experimental machine according to claim 1, characterized in that: A filter (22) is provided on one side of the discharge pipe (17), and a material pump (19) is fixedly connected to one end of the discharge pipe (17). One end of the connecting pipe (16) is connected to the material pump (19).

3. An organic membrane separation experimental machine according to claim 2, characterized in that: A pressure sensor (20) is provided on the outer wall of the connecting pipe (16), and a temperature sensor (21) is provided on the outer wall of the discharge pipe (17).

4. An organic membrane separation experimental machine according to claim 1, characterized in that: The surface of the control box (2) is provided with a power switch (201) and a control instrument (202).

5. An organic membrane separation experimental apparatus according to claim 1, characterized in that: One end of each of the membrane element 1 (4) and membrane element 2 (5) is provided with end cap 1 (A01), and the other end of each of the membrane element 1 (4) and membrane element 2 (5) is provided with end cap 2 (A02). The adjacent surfaces of end cap 1 (A01) and end cap 2 (A02) are provided with end cap sealing rings (A03). The interior of each of the membrane element 1 (4) and membrane element 2 (5) is provided with membrane core (A04). One end of each membrane core (A04) is provided with an O-ring sealing ring (A05). The surface of end cap 2 (A02) is provided with a permeate collection port (A06). End cap 1 (A01) and end cap 2 (A02) are connected to the membrane element by bolts (A07).

6. An organic membrane separation experimental machine according to claim 1, characterized in that: The material tank (3) has an outlet (23) on the lower side and an inlet (24) on the upper side.

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