Hydrogen-rich water preparation system with hollow fiber membrane modules

Abstract

The present application discloses a hydrogen-rich water preparation system with a hollow fiber membrane assembly, which includes a hydrogen supply system, a water supply system and a hollow fiber membrane assembly; the hollow fiber membrane assembly includes a shell, an end cover, a packaging layer, a fiber bundle, a diverter layer and a pressure relief assembly, the end cover is sealed at the end of the shell, the packaging layer is sealed in the end cover to form a shell cavity and a first flow cavity, the end of the fiber bundle is fixed to the packaging layer and is connected to the first flow cavity, the water supply system is connected to the first flow cavity, the diverter layer is arranged between the shell, the end cover and the packaging layer to form a second flow cavity, and the second flow cavity is respectively connected to the shell cavity and the hydrogen supply system; a pressure relief hole is opened in the packaging layer, and the pressure relief assembly is arranged in the pressure relief hole. The pressure relief assembly can relieve the pressure in the second flow cavity to the first flow cavity, thereby reducing the pressure difference between the inside and outside of the fiber bundle. The present application can quickly adjust the pressure inside and outside the fiber bundle to reduce the risk of the fiber bundle being flattened.

Description

Technical Field

[0001] The present application relates to the field of hydrogen-rich water preparation, and in particular to a hydrogen-rich water preparation system with a hollow fiber membrane component. Background Art

[0002] Hydrogen-rich water, a type of water containing large amounts of hydrogen in small molecular clusters, is believed to have numerous health benefits and is gaining popularity as a new health beverage. Currently, a variety of hydrogen-rich water generation devices are available on the market. These devices typically use methods such as electrolysis or metal reactions to generate hydrogen, which is then dissolved in water to create hydrogen-rich water.

[0003] The principle behind the hydrogen-rich water production device is as follows: a large number of hollow fiber filaments are arranged in parallel into bundles, each of which is a slender tubular structure (outer diameter approximately 0.5-2 mm, inner diameter approximately 0.3-1.5 mm). The fiber bundle is enclosed in a pressure-resistant shell and secured at both ends with epoxy resin or adhesive, forming independent flow paths for the "tube side" (fiber lumen) and the "shell side" (fiber outer lumen). Driven by pressure, hydrogen diffuses from the hollow fiber lumen (tube side) through the micropores of the membrane wall and into the water in the shell side, or hydrogen enters the tube side from the shell side. The high specific surface area of the membrane (up to 1000-3000 m² / m³) significantly increases the gas-liquid contact area, accelerating hydrogen dissolution. The microporous structure disperses the hydrogen into nano-sized bubbles or molecular dissolution, preventing the formation of macroscopic bubbles and thus achieving supersaturated dissolution.

[0004] However, in the actual production of hydrogen-rich water, the pressure differential between the inside and outside of the fiber bundle membrane is difficult to control, which can easily lead to excessive pressure on the outside of the fiber bundle, causing the fiber bundle membrane to flatten. Once flattened, the fiber bundle membrane is permanently damaged, increasing its cost of use. Current solutions use pressure sensors to intelligently control the pressure outside the fiber bundle. However, even if the controller can issue control commands in a timely manner, the actuators (such as valves and pumps) still need a certain amount of time to adjust the pressure. This can lead to control lag and prevent the pressure inside and outside the fiber bundle from being quickly stabilized. Summary of the Invention

[0005] In order to be able to quickly adjust the pressure inside and outside the fiber bundle to reduce the risk of the fiber bundle being flattened, the present application provides a hydrogen-rich water preparation system with a hollow fiber membrane component.

[0006] The present application provides a hydrogen-rich water preparation system with a hollow fiber membrane module, which adopts the following technical solutions:

[0007] A hydrogen-rich water preparation system with a hollow fiber membrane module, comprising:

[0008] A hydrogen supply system, used for supplying hydrogen;

[0009] Water supply system for supplying water;

[0010] A hollow fiber membrane module comprises a shell, an end cap, a packaging layer, a fiber bundle, a diverter layer, and a pressure relief assembly, wherein the end cap is sealed and fixed to the end of the shell, the packaging layer is sealed and fixed to the inside of the shell to separate the shell into a shell cavity and a first flow cavity, the end of the fiber bundle is fixed to the packaging layer and communicates with the first flow cavity, the water supply system is communicated with the first flow cavity, the diverter layer is disposed between the shell and the packaging layer to form a second flow cavity therebetween, and the second flow cavity is respectively communicated with the shell cavity and the hydrogen supply system;

[0011] Among them, a pressure relief hole connecting the first circulation cavity and the second circulation cavity is opened in the packaging layer, and the pressure relief component is arranged in the pressure relief hole. The pressure relief component can relieve the pressure in the second circulation cavity into the first circulation cavity, thereby reducing the pressure difference between the inside and outside of the fiber bundle.

[0012] By adopting this technical solution, the hollow fiber membrane module can effectively control internal pressure during the hydrogen and water mixing process, preventing fiber bundle rupture or damage caused by excessive pressure, thereby improving the safety and stability of the system. Furthermore, the design of the pressure relief assembly ensures that the high pressure within the second flow chamber is quickly and evenly transferred to the first flow chamber, further reducing the pressure difference between the inside and outside of the fiber bundle and extending its service life. Furthermore, this design simplifies the system structure and reduces maintenance costs.

[0013] Optionally, the pressure relief component includes:

[0014] a buffer ball, blocking the opening of the pressure relief hole on a side away from the second flow chamber;

[0015] an elastic body, one end of which is connected to the buffer ball, and the other end of which is connected to the inner wall of the pressure relief hole, wherein the elastic body has elastic potential energy capable of pulling the buffer ball toward the opening of the pressure relief hole;

[0016] a buffer membrane, sealed and fixed to the peripheral side of the opening of the pressure relief hole away from the second flow cavity;

[0017] When the second flow cavity is depressurized, the buffer ball moves away from the pressure relief hole opening, and the buffer membrane expands toward the outside of the pressure relief hole opening. When the second flow cavity is not depressurized, the buffer membrane and the buffer ball jointly seal the pressure relief hole opening.

[0018] By adopting the above technical solution, under the dual buffering action of the buffer membrane and the buffer ball, when the pressure in the second flow cavity suddenly changes, it can be effectively relieved, and during the pressure relief process, the buffer membrane expands outward, increasing the pressure in the first flow cavity, and then increasing the pressure inside the fiber bundle. Under this action, the pressure difference between the inside and outside of the fiber bundle is reduced, which can effectively reduce the occurrence of the fiber bundle being flattened and extend the service life of the fiber bundle.

[0019] Optionally, the pressure relief hole opening is configured as an expanded pressure relief hole, the buffer ball is sealed in the expanded pressure relief hole, and the airflow rushing out of the expanded pressure relief hole can rush toward the buffer membrane in an outward expansion manner.

[0020] By adopting the above technical solution, the pressure relief hole opening is set as an expanded pressure relief hole, so that the buffer ball can more effectively block the pressure relief hole. At the same time, the airflow rushing out from the expanded pressure relief hole can rush toward the buffer membrane in an outward expansion manner, thereby enhancing the response speed and reliability of the buffer membrane, thereby quickly releasing the high-pressure gas in the second flow cavity and protecting the hollow fiber membrane assembly from the influence of excessive pressure.

[0021] Optionally, a buffer cavity with a certain air pressure is formed between the inner side of the buffer film, the side wall of the packaging layer and the buffer ball, so that the buffer cavity can be used to release excess pressure in the first flow cavity.

[0022] By adopting the above technical solution, when the pressure in the first flow cavity suddenly increases, the buffer membrane is deformed and the buffer cavity can be compressed, so that the buffer cavity can solve the problem of sudden increase in pressure in the first flow cavity to a certain extent, further stabilize the pressure in the first flow cavity, and thereby improve the pressure stability inside the fiber bundle.

[0023] Optionally, the pressure relief components are arranged in multiple groups along the circumference of the packaging layer, and the fiber bundles are located inside the multiple groups of pressure relief components.

[0024] By adopting the above technical solution, multiple groups of pressure relief components are arranged along the circumference of the packaging layer, which can effectively disperse and balance the pressure distribution inside and outside the fiber bundle, avoiding structural damage caused by excessive local pressure. At the same time, the design of multiple groups of pressure relief components enables the system to effectively regulate pressure at multiple locations, improving the stability and reliability of the system. The fiber bundle is located on the inside of multiple groups of pressure relief components, which further ensures that the fiber bundle maintains a uniform pressure environment throughout the entire working process, thereby improving the working efficiency and service life of the hollow fiber membrane component. In addition, since the outermost fiber bundle in the fiber bundle is closest to the pressure relief component, and the outermost fiber bundle in the fiber bundle is also closest to the second flow cavity, the pressure released from the second flow cavity can be quickly fed back to the outermost fiber bundle in the fiber bundle, so that the outermost fiber bundle can quickly replenish pressure, reducing the time for the large pressure difference between the inside and outside of the fiber bundle, and further improving the stability of the fiber bundle.

[0025] Optionally, the hydrogen supply system includes a hydrogen source, a hydrogen supply pipeline and a pressure sensor, the hydrogen source is connected to the hydrogen supply pipeline, the other end of the hydrogen supply pipeline is connected to the second flow cavity, the pressure sensor is arranged on the hydrogen supply pipeline for monitoring the pressure in the second flow cavity, and the pressure sensor is electrically connected to the hydrogen source.

[0026] By adopting the above technical solution, precise control and safe operation of the hydrogen supply system are achieved. Specifically, the pressure sensor monitors pressure changes within the second circulation chamber in real time and feeds the signal back to the hydrogen source, ensuring the stability and safety of the hydrogen supply. Combined with the pressure relief assembly of this application, it can effectively prevent fiber bundle damage caused by excessive pressure. At the same time, this design improves the system's degree of automation, reduces the need for human intervention, and enhances operational convenience and reliability.

[0027] Optionally, the hydrogen source includes a deionized water source, a clean water tank, and an electrolyzer. The deionized water source is connected to the clean water tank, the clean water tank is connected to the electrolyzer, and the electrolyzer is connected to the hydrogen supply pipeline.

[0028] By adopting this technical solution, pure water provided by a deionized water source is electrolyzed to generate high-purity hydrogen, ensuring the purity and stability of the hydrogen, and improving the quality and safety of hydrogen-rich water. This structural design also makes the entire system more reliable, with low maintenance costs, and suitable for large-scale applications.

[0029] Optionally, the water supply system includes a water source, a filter and a water supply pipeline, the water source is connected to the filter, the filter is connected to the water supply pipeline, a one-way valve and a pipeline pump are provided on the water supply pipeline, and the water supply pipeline is connected to the first circulation cavity.

[0030] By adopting the above technical solution, the water supply system can effectively filter and stabilize the water supply, ensure the purity of the water entering the first flow cavity, and prevent impurities from clogging the fiber bundle. At the same time, the setting of the one-way valve and pipeline pump ensures the unidirectional fluidity and stability of the water flow, thereby improving the reliability and safety of the system.

[0031] Optionally, the diverter layer is an aerogel elastomer, so that the hydrogen is diverted by the aerogel elastomer and transported from the shell to the fiber bundle in a circumferential direction.

[0032] By adopting this technical solution, the aerogel elastomer, acting as a diversion layer, not only effectively and evenly distributes hydrogen, ensuring a more uniform distribution throughout the shell, but also, due to its elasticity, provides a certain degree of pressure relief, reducing the risk of fiber bundle damage caused by localized high pressure and improving the stability and safety of the system. Furthermore, the aerogel material's inherent low density and high elasticity can further enhance the system's overall performance and service life.

[0033] Optionally, the buffer membrane is a rubber membrane or a polyurethane membrane.

[0034] By adopting the above technical solution, the rubber membrane or polyurethane membrane is used as the buffer membrane material, which has good elasticity and durability, and can maintain stable sealing performance and deformation recovery ability under repeated pressure changes, ensuring the effective operation of the pressure relief component.

[0035] In summary, this application includes at least one of the following beneficial technical effects:

[0036] The design of the pressure relief assembly ensures that the high pressure in the second flow chamber can be quickly and evenly transferred to the first flow chamber, further reducing the pressure difference between the inside and outside of the fiber bundle and extending the service life of the fiber bundle. In addition, this design simplifies the system structure and reduces maintenance costs.

[0037] Under the dual buffering effect of the buffer membrane and the buffer ball, when the pressure in the second flow cavity suddenly changes, it can be effectively relieved. During the pressure relief process, the buffer membrane expands outward, increasing the pressure in the first flow cavity, and then increasing the pressure inside the fiber bundle. Under this action, the pressure difference between the inside and outside of the fiber bundle is reduced, which can effectively reduce the occurrence of the fiber bundle being flattened and extend the service life of the fiber bundle.

[0038] When the pressure in the first flow cavity suddenly increases, the buffer membrane is deformed and the buffer cavity can be compressed, so that the buffer cavity can solve the problem of the sudden increase in pressure in the first flow cavity to a certain extent, further stabilize the pressure in the first flow cavity, and thus improve the pressure stability inside the fiber bundle. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a diagram of the hydrogen-rich water preparation system according to an embodiment of the present application.

[0040] Figure 2 This is a schematic diagram of the internal structure of the hollow fiber membrane module mainly shown in this application.

[0041] Figure 3 yes Figure 2 Enlarged schematic diagram of part A.

[0042] Description of reference numerals:

[0043] 1. Hydrogen supply system; 11. Deionized water source; 12. Water purification tank; 13. Electrolyzer; 14. Hydrogen supply pipeline; 15. Pressure sensor; 16. Wastewater pipeline; 17. Return pipeline; 2. Water supply system; 21. Water source; 22. Filter; 23. Water supply pipeline; 24. One-way valve; 25. Pipeline pump; 3. Hollow fiber membrane assembly; 31. Shell; 32. End cover; 33. Encapsulation layer; 331. Pressure relief hole; 34. Fiber bundle; 35. Diverter layer; 36. Pressure relief assembly; 361. Buffer ball; 362. Elastomer; 363. Buffer membrane; 41. Shell cavity; 42. First flow cavity; 43. Second flow cavity; 44. Buffer cavity. DETAILED DESCRIPTION

[0044] The following will be combined with the Figure 1-3 The technical solutions in the embodiments of the present invention are clearly and completely described. The described embodiments are only possible technical implementations of the present invention and do not constitute a complete set of implementations. Those skilled in the art can combine the embodiments of the present invention to derive other embodiments without inventive work, and such embodiments are also within the scope of protection of the present invention.

[0045] The inventors of this application have discovered that conventional hydrogen-rich water production systems suffer from pressure imbalance between the inside and outside of the fiber bundle, which can easily cause the fiber bundle to flatten, affecting the lifespan and reliability of the equipment. To this end, this application primarily utilizes the following hydrogen-rich water production system with a hollow fiber membrane assembly, effectively resolving the pressure imbalance between the inside and outside of the fiber bundle and improving the reliability and lifespan of the equipment. This application is further described below.

[0046] The hydrogen-rich water preparation system with a hollow fiber membrane module provided in the embodiment of the present application is described in detail. Figure 1 , including a hydrogen supply system 1, a water supply system 2, and a hollow fiber membrane module 3. The hydrogen supply system 1 and the water supply system 2 are respectively connected to the hollow fiber membrane module 3. The hydrogen supply system 1 supplies hydrogen, and the water supply system 2 supplies water. The hydrogen and water are mixed in the hollow fiber membrane module 3, and hydrogen-rich water is produced and output through the hollow fiber membrane module 3. The hydrogen concentration in the hydrogen-rich water is as high as 2.0 ppm.

[0047] Reference Figure 2 and Figure 3 The hollow fiber membrane module 3 includes a housing 31, end caps 32, an encapsulation layer 33, a fiber bundle 34, a diverter layer 35, and a pressure relief assembly 36. Specifically, the housing 31 is a pressure-resistant container for accommodating the various components of the entire system. The end caps 32 are sealed and fixed to both ends of the housing 31 to provide a seal. Optionally, the end caps 32 and the housing 31 can be detachably connected to facilitate subsequent disassembly and maintenance.

[0048] The encapsulation layer 33 is sealed and fixed to the inner side of the shell 31, dividing the shell 31 into a shell cavity 41 and a first flow cavity 42. Optionally, the encapsulation layer 33 is an epoxy resin layer. The fiber bundle 34 is composed of a large number of hollow fiber filaments, which are arranged in parallel into a bundle. Each fiber filament is a slender tubular structure. The end of the fiber bundle 34 is fixed to the encapsulation layer 33 and communicates with the first flow cavity 42. The water supply system 2 is connected to the first flow cavity 42 to provide clean water. The water flows into the first flow cavity 42 and is diverted from the first flow cavity 42 to the fiber bundle 34, flowing from the inside of the fiber bundle 34. The diverter layer 35 is arranged between the shell 31 and the encapsulation layer 33 to form a second flow cavity 43. The second flow cavity 43 is respectively connected to the shell cavity 41 and the hydrogen supply system 1. Hydrogen flows into the second flow cavity 43 and flows into the shell cavity 41 through the diverter layer 35. It then enters the inner side of the fiber bundle 34 through the fiber bundle membrane of the shell cavity 41, contacts the water, and achieves supersaturated dissolution.

[0049] In a preferred embodiment, the diverter layer 35 is an aerogel elastomer, so that the hydrogen is diverted by the aerogel elastomer and transported circumferentially from the shell 31 to the fiber bundle 34. The aerogel elastomer as the diverter layer 35 not only effectively and evenly distributes the hydrogen, ensuring a more uniform distribution of hydrogen throughout the shell 31, but also, due to its elasticity, can provide a certain degree of pressure relief, reducing the risk of damage to the fiber bundle 34 caused by local high pressure.

[0050] The packaging layer 33 includes a pressure relief hole 331 connecting the first circulation cavity 42 and the second circulation cavity 43. The pressure relief assembly 36 is located within the pressure relief hole 331 and can release the pressure in the second circulation cavity 43 into the first circulation cavity 42, thereby reducing the pressure difference between the inside and outside of the fiber bundle 34. This design effectively prevents the fiber bundle 34 from being flattened due to excessive pressure outside the fiber bundle 34, thereby extending the service life of the equipment and reducing maintenance costs.

[0051] Specifically, the pressure relief assembly 36 includes a buffer ball 361, an elastomer 362 and a buffer membrane 363. The buffer ball 361 blocks the opening of the pressure relief hole 331 on the side away from the second flow chamber 43. Its diameter is slightly smaller than the diameter of the opening of the pressure relief hole 331 to ensure that it can move smoothly when needed. One end of the elastomer 362 is connected to the buffer ball 361, and the other end is connected to the inner wall of the pressure relief hole 331. The elastomer 362 has elastic potential energy to pull the buffer ball 361 toward the opening of the pressure relief hole 331. Optionally, the elastomer 362 is a telescopic spring.

[0052] The buffer membrane 363 is sealed and fixed around the opening of the pressure relief hole 331 on the side away from the second circulation chamber 43. When the second circulation chamber 43 releases pressure, the buffer ball 361 moves away from the opening of the pressure relief hole 331, and the buffer membrane 363 expands toward the outside of the opening of the pressure relief hole 331. When the second circulation chamber 43 is not releasing pressure, the buffer membrane 363 and the buffer ball 361 jointly seal the opening of the pressure relief hole 331. Optionally, the buffer membrane 363 can be made of a rubber membrane or a polyurethane membrane. Both materials have excellent flexibility and sealing properties, can maintain a stable sealing effect under high-pressure conditions, and ensure the normal operation of the pressure relief assembly 36.

[0053] In a preferred embodiment, in order to further optimize the pressure relief effect, the opening of the pressure relief hole 331 is set as an expanded pressure relief hole, so that the airflow rushing out from the expanded pressure relief hole can open the buffer ball 361 in an outward expansion manner and rush towards the buffer membrane 363, thereby increasing the pressure relief efficiency.

[0054] In another preferred embodiment, a buffer chamber 44 with a certain air pressure is formed between the inner side of the buffer membrane 363, the sidewall of the encapsulation layer 33, and the buffer ball 361. The buffer chamber 44 can be used to relieve excess pressure in the first circulation chamber 42, further improving the stability of the system. Specifically, when the airflow in the second circulation chamber 43 breaks through the buffer ball 361 and rushes towards the buffer membrane 363, when the pressure is restored, the elastic body 362 first pulls back the buffer ball 361 and blocks the opening of the pressure relief hole 331. At this time, the buffer chamber 44 has a certain air pressure, which can cause the buffer membrane 363 to retract and deform. Therefore, when the pressure in the first circulation chamber 42 suddenly increases, the buffer chamber 44 can stabilize the pressure in the first circulation chamber 42 to a certain extent, thereby improving the pressure stability inside the fiber bundle 34.

[0055] In a preferred embodiment, multiple groups of pressure relief assemblies 36 are arranged along the circumference of the packaging layer 33, and the fiber bundles 34 are located inside the multiple groups of pressure relief assemblies 36. This layout ensures that the pressure relief points are evenly distributed throughout the membrane module, improving the overall pressure relief effect. Specifically, because the outermost fiber bundle 34 among the fiber bundles 34 is closest to the pressure relief assembly 36 and also closest to the second flow cavity 43, the pressure released from the second flow cavity 43 can be quickly fed back to the outermost fiber bundle 34 among the fiber bundles 34, allowing the outermost fiber bundle 34 to quickly replenish pressure, reducing the duration of the large pressure difference between the inside and outside of the fiber bundle 34, and further improving the stability of the fiber bundle 34.

[0056] In other embodiments, multiple pressure relief components 36 are provided and distributed at multiple locations of the packaging layer 33, but with a smaller volume and a larger number. This approach can achieve uniform pressure relief over a larger range, further improving the stability and safety of the system.

[0057] Reference Figure 1 and Figure 2 Optionally, the hydrogen supply system 1 includes a hydrogen source, a hydrogen supply line 14 and a pressure sensor 15. Preferably, the hydrogen source includes a deionized water source 11, a clean water tank 12 and an electrolyzer 13, the deionized water source 11 is connected to the clean water tank 12, the clean water tank 12 is connected to the electrolyzer 13, and the hydrogen produced by the electrolyzer 13 is transported to the second flow chamber 43 through the hydrogen supply line 14. This method can ensure the quality and purity of hydrogen and improve the effect of preparing hydrogen-rich water. Among them, the clean water tank 12 is also connected to a wastewater line 16, and the wastewater produced by the clean water tank 12 is discharged through the wastewater line 16; at the same time, a reflux line 17 can also be connected between the clean water tank 12 and the electrolyzer 13, and the reflux line 17 is used to discharge the deionized water that has not been electrolyzed in the electrolyzer 13 back to the clean water tank 12, and the clean water tank 12 is used to filter the deionized water again and then transport it to the electrolyzer 13 for electrolysis.

[0058] Among them, the pressure sensor 15 is arranged on the hydrogen supply pipeline 14 to monitor the pressure in the second circulation chamber 43 and is electrically connected to the hydrogen source. When it is detected that the pressure in the second circulation chamber 43 is too high, the gas supply can be adjusted by adjusting the working state of the hydrogen source to achieve dynamic balance. Optionally, a flow control valve can be added to the hydrogen supply pipeline 14 to adjust the inflow speed of hydrogen according to actual conditions and further optimize the dissolution process of hydrogen. The flow control valve works in conjunction with the pressure sensor 15 to achieve precise management of hydrogen pressure and flow through closed-loop control.

[0059] Optionally, the water supply system 2 includes a water source 21, a filter 22, and a water supply line 23. The water source 21 is connected to the filter 22, which is in turn connected to the water supply line 23. The water supply line 23 is provided with a one-way valve 24 and a pipeline pump 25. The water supply line 23 is in communication with the first flow chamber 42. The filter 22 removes impurities from the water source 21, ensuring water purity and improving the quality of the final product. The one-way valve 24 and pipeline pump 25 ensure unidirectional fluidity and stability of the water flow, thereby improving the reliability and safety of the system.

[0060] Taking into account the possibility of water flow fluctuations in actual applications, this embodiment can add a pressure stabilizer to the water supply pipeline 23 to stabilize the water supply pressure, ensure a smooth water flow, and avoid problems such as uneven hydrogen dissolution caused by unstable water flow.

[0061] Among them, the structures at both ends of the hollow fiber membrane assembly 3 are the same. In this embodiment, the first flow cavity 42 on one side is used as the water inlet side, the second flow cavity 43 is used as the hydrogen inlet side, and the first flow cavity 42 away from the water inlet side is used as the water outlet side; in other embodiments, water or ventilation can also be reversed. After the hollow fiber membrane assembly 3 has been used for a period of time, the flow direction can be changed to play a certain cleaning and unblocking role on the hollow fiber membrane assembly 3.

[0062] The operating principle of this embodiment is as follows: By providing a pressure relief assembly 36, the problem of pressure imbalance between the inside and outside of the fiber bundle 34 during the traditional hydrogen-rich water production process is resolved, the risk of the fiber bundle 34 being crushed is avoided, and the reliability and lifespan of the equipment are improved. Furthermore, through the rational design of the hydrogen supply system 1 and the water supply system 2, high-quality input of hydrogen and water is ensured, improving the production efficiency and product quality of hydrogen-rich water. The entire system has a compact structure and is easy to operate, making it suitable for a variety of applications in household, medical, and industrial settings.

[0063] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A hydrogen-rich water preparation system with a hollow fiber membrane module, characterized in that: include: A hydrogen supply system (1) for supplying hydrogen; a water supply system (2) for supplying water; A hollow fiber membrane assembly (3) comprising a shell (31), an end cap (32), an encapsulation layer (33), a fiber bundle (34), a diverter layer (35), and a pressure relief assembly (36), wherein the end cap (32) is sealed and fixed to the end of the shell (31), the encapsulation layer (33) is sealed and fixed to the inner side of the shell (31) to separate the shell (31) into a shell cavity (41) and a first flow cavity (42), the end of the fiber bundle (34) is fixed to the encapsulation layer (33) and communicates with the first flow cavity (42), the water supply system (2) is communicated with the first flow cavity (42), the diverter layer (35) is arranged between the shell (31) and the encapsulation layer (33) to form a second flow cavity (43) therebetween, and the second flow cavity (43) is respectively communicated with the shell cavity (41) and the hydrogen supply system (1); The packaging layer (33) is provided with a pressure relief hole (331) communicating with the first circulation cavity (42) and the second circulation cavity (43); the pressure relief component (36) is provided in the pressure relief hole (331); the pressure relief component (36) can relieve the pressure in the second circulation cavity (43) into the first circulation cavity (42), thereby reducing the pressure difference between the inside and outside of the fiber bundle (34); The pressure relief assembly (36) comprises: A buffer ball (361) blocks the opening of the pressure relief hole (331) on a side away from the second flow cavity (43); an elastic body (362), one end of which is connected to the buffer ball (361), and the other end of which is connected to the inner wall of the pressure relief hole (331), wherein the elastic body (362) has elastic potential energy capable of pulling the buffer ball (361) toward the opening of the pressure relief hole (331); A buffer membrane (363) is sealed and fixed to the peripheral side of the opening of the pressure relief hole (331) on the side away from the second circulation chamber (43); wherein, when the second circulation chamber (43) releases pressure, the buffer ball (361) moves in a direction away from the opening of the pressure relief hole (331), and the buffer membrane (363) expands toward the outside of the opening of the pressure relief hole (331); when the second circulation chamber (43) does not release pressure, the buffer membrane (363) and the buffer ball (361) jointly seal the opening of the pressure relief hole (331); The pressure relief components (36) are arranged in multiple groups along the circumference of the packaging layer (33), and the fiber bundles (34) are located inside the multiple groups of pressure relief components (36); The diversion layer (35) is an aerogel elastomer, so that the hydrogen is diverted by the aerogel elastomer and transported circumferentially from the shell (31) to the fiber bundle (34).

2. The hydrogen-rich water preparation system with a hollow fiber membrane module according to claim 1, characterized in that: The opening of the pressure relief hole (331) is configured as an expanded pressure relief hole, and the buffer ball (361) is sealed in the expanded pressure relief hole. The airflow rushing out of the expanded pressure relief hole can rush toward the buffer membrane (363) in an outward expansion manner.

3. The hydrogen-rich water preparation system with a hollow fiber membrane module according to claim 1, characterized in that: A buffer cavity (44) with a certain air pressure is formed between the inner side of the buffer film (363), the side wall of the packaging layer (33), and the buffer ball (361), so that the buffer cavity (44) can be used to release excess pressure in the first flow cavity (42).

4. The hydrogen-rich water preparation system with a hollow fiber membrane module according to claim 1, characterized in that: The hydrogen supply system (1) includes a hydrogen source, a hydrogen supply pipeline (14) and a pressure sensor (15), wherein the hydrogen source is connected to the hydrogen supply pipeline (14), the other end of the hydrogen supply pipeline (14) is connected to the second circulation cavity (43), and the pressure sensor (15) is arranged on the hydrogen supply pipeline (14) for monitoring the pressure in the second circulation cavity (43), and the pressure sensor (15) is electrically connected to the hydrogen source.

5. The hydrogen-rich water preparation system with a hollow fiber membrane module according to claim 4, characterized in that: The hydrogen source comprises a deionized water source (11), a clean water tank (12), and an electrolytic cell (13); the deionized water source (11) is connected to the clean water tank (12); the clean water tank (12) is connected to the electrolytic cell (13); and the electrolytic cell (13) is connected to a hydrogen supply pipeline (14).

6. The hydrogen-rich water preparation system with a hollow fiber membrane module according to claim 1, characterized in that: The water supply system (2) comprises a water source (21), a filter (22) and a water supply pipeline (23); the water source (21) is connected to the filter (22); the filter (22) is connected to the water supply pipeline (23); a one-way valve (24) and a pipeline pump (25) are provided on the water supply pipeline (23); and the water supply pipeline (23) is in communication with the first circulation chamber (42).

7. The hydrogen-rich water preparation system with a hollow fiber membrane module according to claim 1, characterized in that: The buffer film (363) is a rubber film.

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