A super high penetration method

By passing the same ion concentration solution on both sides of the semipermeable membrane and applying pressure, combined with the countercurrent design, the problem of the decrease in the penetration flux of the existing semipermeable membrane is solved, and an efficient ultra-high permeability effect is achieved, breaking through the traditional concentration limit.

CN119746633APending Publication Date: 2025-04-04SICHUAN JUDA INNOVATION ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510036912.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2025-04-04

AI Technical Summary

Technical Problem

During the infiltration process, the existing semipermeable membranes reduce the permeability flux due to the decrease in concentration difference, and reverse diffusion will further reduce the concentration difference and reduce the permeability efficiency.

Method used

Using the ultra-high permeability method, by passing the same ion concentration solution on both sides of the semi-permeable membrane and applying pressure on one side, the countercurrent design maintains a large concentration difference and enhances the permeability flux.

Benefits of technology

It has achieved a breakthrough in the concentration limit of traditional reverse osmosis technology, improved the permeability flux, and was able to effectively treat high-concentration solutions, breaking through the physical limit of traditional physical membrane concentration.

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Abstract

The present invention belongs to the field of ultra-high permeability, specifically a kind of ultra-high permeability method, including a permeation tube body and a semipermeable membrane body, the present invention is through ultra-high permeability technology, the solution of the same ion concentration is passed to both sides of the semipermeable membrane, and the permeation phenomenon will not occur on both sides, and a certain pressure is applied on one side of the semipermeable membrane, and the solvent in the solution on the side where the pressure is applied will permeate to the other side. The greater the pressure applied, the greater the permeation flux. The limit for chloride ion concentration is about 40000mg / L, and this limit can be broken through by using this technology, if a chloride ion solution of 40000mg / L is passed on both sides of the semipermeable membrane, and then pressure is applied on one side of the semipermeable membrane, the concentration limit of reverse osmosis technology can be broken through, so that the solution on both sides of the semipermeable membrane has a concentration difference, and the concentration on the side where the pressure is applied will be higher and higher. The solution on the other side will gradually decrease, so that the physical limit of traditional physical membrane concentration will be broken through.
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Description

Technical Field

[0001] The invention belongs to the field of ultra-high permeability, in particular to an ultra-high permeability method. Background Art

[0002] A semipermeable membrane is a thin membrane that only allows certain molecules or ions to diffuse in and out, and is selective for the passage of different particles. It allows some molecules or ions to pass through, while restricting the passage of other molecules or ions. An ideal semipermeable membrane allows solvent (such as water) molecules to pass freely, while solute molecules (such as salts, sugars, etc.) cannot pass through; when there is a difference in ion concentration between the solutions on both sides of the semipermeable membrane, the solution with a lower ion concentration will penetrate into the solution with a higher ion concentration, and this phenomenon is called the osmosis phenomenon.

[0003] During the osmosis process, as the solvent moves from the low-concentration side to the high-concentration side, the concentration difference on both sides of the semipermeable membrane will gradually decrease. According to the calculation formula of the osmotic flux (the osmotic flux is proportional to the concentration difference), this decrease in concentration difference will lead to a decrease in the osmotic flux. For example, in a simple salt solution concentration experiment using a semipermeable membrane, at the beginning, the concentration difference between the pure water side and the salt solution side is large, and the solvent (water) will quickly penetrate from the pure water side to the salt solution side. However, as the osmosis proceeds, the concentration on the salt solution side decreases due to the addition of the solvent, and the concentration on the pure water side increases due to the reduction of the solvent. The concentration difference on both sides decreases, and the osmotic flux will decrease accordingly;

[0004] When the concentration difference between the two sides of the semipermeable membrane is large, in addition to the solvent permeating to the high-concentration side, the solute may also diffuse in the opposite direction from the high-concentration side to the low-concentration side. As time goes by, this reverse diffusion will further reduce the concentration difference between the two sides, resulting in a decrease in the permeation flux. For example, in some semipermeable membranes that have a certain permeability to small molecule solutes, the solute molecules may diffuse to the low-concentration side driven by the concentration difference, reducing the concentration difference originally used to drive the solvent permeation and reducing the permeation flux.

[0005] To this end, the present invention provides an ultra-high permeability method. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: an ultra-high permeability method described in the present invention includes a permeation tube body and a semipermeable membrane body, the semipermeable membrane body is arranged in the middle position inside the permeation tube body, a high-pressure liquid inlet pipe is arranged on the right side of the rear end of the permeation tube body, a high-pressure liquid outlet pipe is arranged on the left side of the rear end of the permeation tube body, a low-pressure liquid outlet pipe is arranged on the right side of the front end of the permeation tube body, and a low-pressure liquid inlet pipe is arranged on the left side of the front end of the permeation tube body.

[0008] The steps of the ultra-high permeability method include:

[0009] S1. Solution preparation: prepare two solutions with certain ion concentrations, which are respectively used as high-concentration solution and low-concentration solution; ensure that the concentration of the solution is accurate and the solution is pure to avoid impurities affecting the super-osmosis process;

[0010] S2. Equipment inspection: Check the super osmosis equipment, including the integrity and installation of the semipermeable membrane, to ensure that the countercurrent channel is not blocked, the inlet and outlet valves can operate normally, and the pressure monitoring and control devices operate normally;

[0011] S3, solution injection, inject the high concentration solution from the high pressure liquid inlet pipe into one side of the permeation tube body, and inject the low concentration solution from the low pressure liquid inlet pipe into the other side of the permeation tube body, ensuring that the injection process is smooth and the solution volume meets the equipment requirements;

[0012] S4, countercurrent setting, according to the countercurrent design, set the flow direction of the high concentration solution and the low concentration solution so that they flow in opposite directions in the permeation tube body; by adjusting the inlet and outlet valves and the flow rate control device, ensure that the solution forms a stable countercurrent state in the permeation tube body;

[0013] S5. Apply pressure. Use a booster device (such as a booster pump) to apply a certain pressure on the high-concentration solution side. The applied pressure should be adjusted according to the required permeation flux and solution concentration difference, and the pressure should be sufficient to drive the super-osmosis process.

[0014] S6, superosmotic process, as pressure is applied, the solvent molecules in the high-concentration solution begin to penetrate through the semipermeable membrane body to the low-concentration solution side under pressure; due to the countercurrent design, the high-concentration solution and the low-concentration solution always maintain a large concentration difference during the flow process, which helps to maintain a high permeation flux;

[0015] S7, continuously monitor the pressure, solution concentration, osmotic flux and other parameters on both sides of the semipermeable membrane; obtain data in real time through pressure sensors and concentration detection devices, and adjust the applied pressure and solution flow rate in a timely manner according to these data to ensure that the super osmotic process is carried out stably and efficiently;

[0016] S8, solution collection, collecting the high-concentration solution with higher concentration after super osmosis treatment from the high-pressure liquid outlet pipe, and collecting the low-concentration solution with reduced concentration from the low-pressure liquid inlet pipe.

[0017] The beneficial effects of the present invention are as follows:

[0018] A kind of ultra-high permeability method of the present invention, by ultra-high permeability technology, the solution of the same ion concentration is passed to both sides of the semipermeable membrane, and the permeation phenomenon will not occur on both sides. A certain pressure is applied on one side of the semipermeable membrane, and the solvent in the solution on the side where the pressure is applied will permeate to the other side. The greater the pressure applied, the greater the permeation flux. According to calculation: the size of the permeation flux depends on the ion concentration difference on both sides of the semipermeable membrane. When the pressure applied on one side is equal to the osmotic pressure of the ion concentration difference, the permeation stops. The limit for chloride ion concentration is approximately 40000mg / L, and this limit can be broken through by using this technology. If the chloride ion solution of 40000mg / L is passed on both sides of the semipermeable membrane, and then pressure is applied on one side of the semipermeable membrane, the concentration limit of reverse osmosis technology can be broken through, so that the solution on both sides of the semipermeable membrane appears concentration difference, and the concentration on the side where the pressure is applied will be higher and higher. The solution on the other side will gradually decrease, so that the physical limit of traditional physical membrane concentration will be broken through. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is the overall structural diagram of the present invention;

[0021] Figure 2 It is a cross-sectional view of the overall structure of the present invention.

[0022] In the figure: 1. Permeation tube body; 2. High-pressure liquid inlet tube; 3. High-pressure liquid outlet tube; 4. Low-pressure liquid outlet tube; 5. Low-pressure liquid inlet tube; 6. Semipermeable membrane body. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0024] like Figure 1 and Figure 2 As shown, an ultra-high permeability method of an embodiment of the present invention includes a permeation tube body 1 and a semipermeable membrane body 6, wherein the semipermeable membrane body 6 is arranged in the middle position inside the permeation tube body 1, a high-pressure liquid inlet pipe 2 is arranged on the right side of the rear end of the permeation tube body 1, a high-pressure liquid outlet pipe 3 is arranged on the left side of the rear end of the permeation tube body 1, a low-pressure liquid outlet pipe 4 is arranged on the right side of the front end of the permeation tube body 1, and a low-pressure liquid inlet pipe 5 is arranged on the left side of the front end of the permeation tube body 1.

[0025] The steps of the ultra-high permeability method include:

[0026] S1. Solution preparation: prepare two solutions with certain ion concentrations, which are respectively used as high-concentration solution and low-concentration solution; ensure that the concentration of the solution is accurate and the solution is pure to avoid impurities affecting the super-osmosis process;

[0027] S2. Equipment inspection: Check the super osmosis equipment, including the integrity and installation of the semipermeable membrane, to ensure that the countercurrent channel is not blocked, the inlet and outlet valves can operate normally, and the pressure monitoring and control devices operate normally;

[0028] S3, solution injection, injecting high-concentration solution from the high-pressure liquid inlet pipe 2 into one side of the permeation tube body 1, and injecting low-concentration solution from the low-pressure liquid inlet pipe 5 into the other side of the permeation tube body 1, ensuring that the injection process is smooth and the solution amount meets the equipment requirements;

[0029] S4, countercurrent setting, according to the countercurrent design, setting the flow directions of the high-concentration solution and the low-concentration solution so that they flow in opposite directions in the permeation tube body 1; by adjusting the inlet and outlet valves and the flow rate control device, ensuring that the solution forms a stable countercurrent state in the permeation tube body 1;

[0030] S5. Apply pressure. Use a booster device such as a booster pump to apply a certain pressure on the high-concentration solution side. The applied pressure should be adjusted according to the required permeation flux and solution concentration difference, and the pressure should be sufficient to drive the super-osmosis process.

[0031] S6, super osmosis process, as pressure is applied, the solvent molecules in the high concentration solution begin to penetrate through the semipermeable membrane body 6 to the low concentration solution side under pressure driving; due to the countercurrent design, the high concentration solution and the low concentration solution always maintain a large concentration difference during the flow process, which helps to maintain a high permeation flux;

[0032] S7, continuously monitor the pressure, solution concentration, osmotic flux and other parameters on both sides of the semipermeable membrane; obtain data in real time through pressure sensors and concentration detection devices, and adjust the applied pressure and solution flow rate in a timely manner according to these data to ensure that the super osmotic process is carried out stably and efficiently;

[0033] S8, solution collection, collecting the high-concentration solution with a higher concentration after super-osmosis treatment from the high-pressure liquid outlet pipe 3, and collecting the low-concentration solution with a reduced concentration from the low-pressure liquid inlet pipe 5.

[0034] Using ultra-high permeability technology, solutions with the same ion concentration are passed through both sides of the semipermeable membrane. No permeation will occur on both sides. However, as long as a certain pressure is applied on one side of the semipermeable membrane, the solvent in the solution on the side where the pressure is applied will permeate to the other side. The greater the pressure applied, the greater the permeation flux. According to calculations: the size of the permeation flux depends on the difference in ion concentration on both sides of the semipermeable membrane. When the pressure applied on one side is equal to the osmotic pressure of the ion concentration difference, the permeation stops.

[0035] The limit of chloride ion concentration of existing reverse osmosis technology is about 40,000 mg / L, but this technology can break through this limit. If 40,000 mg / L chloride ion solution is passed through both sides of the semipermeable membrane, and pressure is applied on one side of the semipermeable membrane, the concentration limit of reverse osmosis technology can be broken through, so that there is a concentration difference between the solutions on both sides of the semipermeable membrane, and the concentration on the side where pressure is applied will become higher and higher. The solution on the other side will gradually decrease, thus breaking through the physical limit of traditional physical membrane concentration.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An ultra-high permeability device, comprising a permeation tube body (1) and a semi-permeable membrane body (6), characterized in that: A semipermeable membrane body (6) is arranged in the middle of the permeation tube body (1), a high-pressure liquid inlet pipe (2) is arranged on the right side of the rear end of the permeation tube body (1), a high-pressure liquid outlet pipe (3) is arranged on the left side of the rear end of the permeation tube body (1), a low-pressure liquid outlet pipe (4) is arranged on the right side of the front end of the permeation tube body (1), and a low-pressure liquid inlet pipe (5) is arranged on the left side of the front end of the permeation tube body (1).

2. The ultra-high permeability method according to claim 1, characterized in that: The steps of the ultra-high permeability method include: S1. Solution preparation: prepare two solutions with certain ion concentrations, which are respectively used as high-concentration solution and low-concentration solution; ensure that the concentration of the solution is accurate and the solution is pure to avoid impurities affecting the super-osmosis process; S2. Equipment inspection: Check the super osmosis equipment, including the integrity and installation of the semipermeable membrane, to ensure that the countercurrent channel is not blocked, the inlet and outlet valves can operate normally, and the pressure monitoring and control devices operate normally; S3, solution injection, injecting a high-concentration solution from the high-pressure liquid inlet pipe (2) into one side of the permeation tube body (1), and injecting a low-concentration solution from the low-pressure liquid inlet pipe (5) into the other side of the permeation tube body (1), ensuring that the injection process is smooth and the solution amount meets the equipment requirements; S4, countercurrent setting, according to the countercurrent design, setting the flow directions of the high-concentration solution and the low-concentration solution so that they flow in opposite directions in the permeation tube body (1); by adjusting the inlet and outlet valves and the flow rate control device, ensuring that the solutions form a stable countercurrent state in the permeation tube body (1); S5. Apply pressure. Use a booster device (such as a booster pump) to apply a certain pressure on the high-concentration solution side. The applied pressure should be adjusted according to the required permeation flux and solution concentration difference, and the pressure should be sufficient to drive the super-osmosis process. S6, superosmotic process, as pressure is applied, the solvent molecules in the high-concentration solution begin to penetrate through the semipermeable membrane body (6) to the low-concentration solution side under pressure-driven; due to the countercurrent design, the high-concentration solution and the low-concentration solution always maintain a large concentration difference during the flow process, which helps to maintain a high permeation flux; S7, continuously monitor the pressure, solution concentration, osmotic flux and other parameters on both sides of the semipermeable membrane; obtain data in real time through pressure sensors and concentration detection devices, and adjust the applied pressure and solution flow rate in a timely manner according to these data to ensure that the super osmotic process is carried out stably and efficiently; S8, solution collection, collecting the high-concentration solution with a higher concentration after super-osmosis treatment from the high-pressure liquid outlet pipe (3), and collecting the low-concentration solution with a reduced concentration from the low-pressure liquid inlet pipe (5).