Preparation method of hydrogen-rich water

Abstract

The invention discloses a preparation method of hydrogen-rich water. The method comprises the steps that S1, a water source enters the water tank; s2, hydrogen-rich water is prepared through an electrolysis hydrogen production method or / and a soaking hydrogen production method; s3, hydrogen-rich water mixing; s4, discharging water; in the step S2, a water source in the water tank is introduced into an electrolytic hydrogen production assembly and a soaking hydrogen production assembly, and the water source introduced into the electrolytic hydrogen production assembly is filtered through an activated carbon filter, an RO membrane filter, an ultrafiltration membrane and an ion hydrogen mixer. According to the preparation method provided by the scheme, the system can automatically and flexibly switch or simultaneously start an electrolytic hydrogen production process and a soaking hydrogen production process according to different water source characteristics and actual requirements of users, so that different scenes and requirements are met; in addition, the water source adaptability is high, the electrolysis hydrogen production process can be completed without forcibly adding pure water, and the operation is more convenient.

Description

Technical Field

[0001] This solution relates to the technical field of hydrogen-rich water preparation, and particularly relates to a method for preparing hydrogen-rich water. Background Art

[0002] At present, hydrogen-rich water, that is, water containing a certain concentration of hydrogen, has potential application value in the fields of medical care, drinking water, etc., and its health effects have received extensive attention. Common hydrogen production methods mainly include hydrogen production by electrolyzing water and hydrogen production by soaking in certain chemical substances. Hydrogen production by electrolyzing water is to decompose water into hydrogen and oxygen using electrical energy. This method has a relatively fast hydrogen production rate and high purity, but hydrogen is easily lost. Soaking hydrogen production usually uses metal hydrides or other hydrogen-producing materials to react with water to produce hydrogen. This method is relatively simple to operate, and hydrogen loss is slow, but the hydrogen production amount and rate are limited by the material characteristics.

[0003] A single hydrogen production method is difficult to meet the requirements for hydrogen production amount, purity, energy consumption, etc. in different scenarios. For example, in some industrial scenarios where high purity of hydrogen is required and a large amount of hydrogen needs to be obtained quickly, although hydrogen production by electrolyzing water can meet the purity requirements, it has high energy consumption and high cost. In some civilian scenarios that are sensitive to cost, with relatively stable hydrogen demand but not high production requirements, although soaking hydrogen production has low cost, it is difficult to quickly provide a large amount of hydrogen.

[0004] Therefore, a preparation method that can combine multiple hydrogen production processes is needed to flexibly adjust the hydrogen production method according to different requirements. Summary of the Invention

[0005] This solution provides a method for preparing hydrogen-rich water to solve the above problems.

[0006] To achieve the above object, the technical solution adopted in this solution is: A method for preparing hydrogen-rich water, comprising the following steps:

[0007] S1. Water source enters the water tank;

[0008] S2. Hydrogen-rich water is prepared by the electrolytic hydrogen production method or / and the soaking hydrogen production method;

[0009] S3. Hydrogen-rich water is mixed;

[0010] S4. Water is discharged;

[0011] The water source in the water tank is respectively introduced into the electrolytic hydrogen production component and the soaking hydrogen production component, and the water source introduced into the electrolytic hydrogen production component is filtered through an activated carbon filter, an RO membrane filter, an ultrafiltration membrane, and an ion hydrogen mixer.

[0012] Further, the water filtered by the activated carbon filter is introduced into the RO membrane filter along one path, and after filtration, it enters the electrolytic water machine; the other path is sequentially introduced into the ultrafiltration membrane filtration system and the hydrogen mixer for filtration, and the filtered water flows into the hydrogen-mixed membrane.

[0013] Further, during the filtration processes of the RO membrane filter and the ultrafiltration membrane, waste water with impurities is generated, and it flows back to the water tank through the waste water pipe in parallel.

[0014] Further, the hydrogen-mixed membrane is connected to the electrolytic water machine through a gas path. Inside the electrolytic water machine, water is decomposed into hydrogen and oxygen. Oxygen is discharged from the oxygen discharge port, and hydrogen enters the hydrogen-mixed membrane through the hydrogen inlet pipe.

[0015] Further, the water and hydrogen inside the hydrogen-mixed membrane are in full contact, and hydrogen-rich water is formed through the electrolytic hydrogen production method and introduced into the nanofiltration membrane.

[0016] Further, the nanofiltration membrane is connected to the immersion hydrogen production component, and hydrogen-rich water formed through the immersion hydrogen production method is also introduced into the nanofiltration membrane.

[0017] Further, the nanofiltration membrane is an inorganic ceramic-based nanofiltration membrane.

[0018] In summary, the present solution has the following advantages:

[0019] For the preparation method provided by the present solution, according to different water source characteristics and actual user needs, the system can automatically and flexibly switch or simultaneously start the electrolytic hydrogen production and immersion hydrogen production processes to meet different scenarios and requirements;

[0020] In addition, it has strong adaptability to water sources. It can complete the electrolytic hydrogen production process without forcibly adding pure water, which is more convenient;

[0021] Finally, during the filtration processes of the RO membrane filter and the ultrafiltration membrane, the waste water with impurities generated flows in parallel through the waste water pipe and then flows back into the water tank. Part of the water and tap water are introduced into the activated carbon filter and the immersion hydrogen production structure through a booster pump, and the impurities settle downward, reducing sewage discharge and being more environmentally friendly. Description of the Drawings

[0022] Figure 1 is the flow chart of the hydrogen-rich water preparation method;

[0023] Figure 2 is the schematic diagram of the hydrogen-rich water preparation method in Embodiment 1;

[0024] Figure 3 is the schematic diagram of the hydrogen-rich water preparation method in Embodiment 2;

[0025] Wherein:

[0026] 1. Water tank; 11. First water tank; 12. Second water tank;

[0027] 2. Activated carbon filter;

[0028] 3. RO membrane filter;

[0029] 4. Electrolyzed water machine;

[0030] 5. Ultrafiltration membrane;

[0031] 6. Ion hydrogen mixer;

[0032] 7. Hydrogen mixing membrane;

[0033] 8. Immersion hydrogen production component;

[0034] 9. Nanofiltration membrane. Detailed implementation manners

[0035] The following further describes the solution in conjunction with the accompanying drawings and embodiments:

[0036] Embodiment 1:

[0037] A method for preparing hydrogen-rich water, as Figure 1 and Figure 2 shown, includes the following steps:

[0038] S1. The water source enters the water tank

[0039] The water source in the water tank 1 is respectively introduced into the electrolytic hydrogen production component and the immersion hydrogen production structure. In this embodiment, the water source is tap water. Specifically, the tap water enters the water tank 1 and is respectively introduced into the activated carbon filter 2 and the immersion hydrogen production structure through a booster pump;

[0040] S2. Hydrogen-rich water is made by the electrolytic hydrogen production method or / and the immersion hydrogen production method

[0041] In the structural setting of this solution, the electrolytic hydrogen production process can be independently realized, the immersion hydrogen production process can also be independently realized, and the dual processes of electrolytic hydrogen production and immersion hydrogen production can be synchronized to produce hydrogen, and hydrogen-rich water produced by the two hydrogen production processes can be made.

[0042] In the process of hydrogen production by electrolysis, the purity requirement of water is relatively high, and pure water quality needs to be used. In this solution, before the electrolytic hydrogen production process, the water quality is pretreated. The water source enters the water tank 1, and the water diverted to the electrolytic hydrogen production process is filtered through the pretreatment unit. The pretreatment unit includes an activated carbon filter 2, an RO membrane filter 3, an ultrafiltration membrane 5, and an ion hydrogen mixer 6. The pretreatment unit has strong adaptability to water sources. Whether it is mineral water, natural spring water, or tap water, it can be adjusted through the pretreatment unit. Of course, the pretreatment of water can also be carried out with ultrasonic filtering materials, such as ultrasonic filter cotton; this is a filtering material pressed from fiber materials through ultrasonic technology, with high filtering accuracy and good air permeability, which can effectively intercept particulate matter and impurities in the liquid and ensure the filtering effect.

[0043] In the activated carbon filter 2, through the activated carbon layer, a large number of pores in the activated carbon remove organic matter, residual chlorine, some heavy metal ions, and some odor-producing substances in tap water through physical adsorption and chemical adsorption. After passing through the activated carbon filter 2, the tap water flows forward in two paths. One path is introduced into the RO membrane filter 3 for later electrolytic hydrogen production, and the other path is introduced into the ultrafiltration membrane 5 filtration system for making pure water.

[0044] Among them, the working principle of the RO membrane filter 3 is based on reverse osmosis technology. Using the semi-permeability of the RO membrane, only water molecules are allowed to pass through, while other harmful substances are intercepted, realizing the separation of water and impurities in tap water. The separated water is introduced into the electrolyzer 4.

[0045] After the water is introduced from the activated carbon filter 2 into the ultrafiltration membrane 5 filtration system, under pressure, macromolecular impurities such as organic matter and colloid in the water are blocked on one side of the ultrafiltration membrane 5. The water filtered through the ultrafiltration membrane 5 is introduced into the ion hydrogen mixer 6. In the ion hydrogen mixer 6, ion hydrogen is generated through a special electrolysis method, making it fully mixed and react with water to achieve the purpose of purifying water quality. The treated water flows into the hydrogen mixing membrane 7.

[0046] During the filtration processes of the RO membrane filter 3 and the ultrafiltration membrane 5, wastewater with impurities will be generated. The separated wastewater flows through the wastewater pipe and then flows back into the water tank 1. Part of the water and tap water are introduced into the activated carbon filter 2 and the hydrogen production structure by a booster pump, and the impurities settle downward, trying to avoid discharging sewage as much as possible.

[0047] The electrolyzed water machine 4 is equipped with a positive electrode and a negative electrode. When a DC voltage is applied across the electrodes, the water undergoes an electrolysis reaction. At the positive electrode, water molecules lose electrons and undergo an oxidation reaction. At the negative electrode, hydrogen ions in the water gain electrons and undergo a reduction reaction. That is, under the action of an electric field, water is decomposed into hydrogen and oxygen. The generated oxygen is discharged from the oxygen outlet, and the generated hydrogen enters the hydrogen mixing membrane 7 through the hydrogen inlet pipe and comes into full contact with the water in the hydrogen mixing membrane 7. As hydrogen is continuously generated, its concentration in the water gradually increases. When the equilibrium state is reached, hydrogen-rich water is formed.

[0048] After the hydrogen production component 8 for soaking comes into contact with water, a chemical reaction is immediately triggered. The metal elements in the material combine tightly with the hydroxide ions in the water, thereby releasing hydrogen. Specifically, a filter element containing a magnesium reactant is connected to the reaction vessel, 1 liter of tap water is added to the reaction vessel, the stirring system is turned on, and during the reaction process, the hydrogen concentration monitoring system monitors the hydrogen concentration in real time. Finally, hydrogen-rich water is obtained and flows into the nano-filtration membrane 9 from the hydrogen production component 8 for soaking.

[0049] S3. Hydrogen-rich water mixing

[0050] In winter, users have a need to drink hot hydrogen-rich water. However, when heating hydrogen-rich water, the thermal motion of hydrogen molecules in the water intensifies, making it easier for them to escape from the water into the air, resulting in a decrease in the hydrogen content in the hydrogen-rich water. In the design of this solution, after the hydrogen-rich water is prepared, a nano-filtration device is introduced. After the hydrogen-rich water passes through the filtration, the hydrogen content has a long retention time and will not be lost at temperatures not exceeding 80°C.

[0051] The nano-filtration membrane 9 with high temperature resistance is selected in this embodiment, and an inorganic ceramic-based nano-filtration membrane 9 is used. It has good thermal stability and can operate stably at 80 - 120°C. The pore size of the nano-filtration membrane 9 is in the nano-scale range, generally between 1 - 100 nanometers. By selecting a nano-filtration membrane 9 with a suitable pore size, it can play a certain role in intercepting hydrogen molecules and prevent hydrogen from escaping, thereby improving the stability of hydrogen-rich water. At the same time, in a high-temperature environment, by utilizing the change in the solubility of hydrogen in water at different temperatures and combining with the filtration function of the nano-filtration membrane 9, the hydrogen concentration and quality of hydrogen-rich water are further optimized.

[0052] Through an intelligent central control system, key parameters such as water quality, hydrogen production amount, and hydrogen concentration are monitored in real time and data analysis is carried out. According to different water source characteristics and the actual needs of users, the system can automatically and flexibly switch or simultaneously start the electrolysis hydrogen production and soaking hydrogen production processes.

[0053] Specifically, when facing a water source with good water quality and a high requirement for hydrogen purity, the electrolysis hydrogen production process is preferentially started; while when dealing with a situation where the water quality is relatively complex and cost control is crucial, the soaking hydrogen production process or a mode of both working together can be selected to achieve the best hydrogen production effect.

[0054] S4. Water outlet

[0055] According to the user's selection, water flows out from the cold water outlet or the hot water outlet. The hot water outlet includes a heating element and a thermosensitive device. After the hot water is heated, the temperature does not exceed 80°C, which can meet the user's drinking needs and also maintain the hydrogen content.

[0056] Embodiment 2:

[0057] A method for preparing hydrogen-rich water, which is different from Embodiment 1 in that, as Figure 1 and Figure 3 shown, two water tanks are provided. Among them, the first water tank 11 is connected to the activated carbon filter 2, and the second water tank 12 is connected to the hydrogen production structure by soaking. The waste water separated during the filtration of the RO membrane filter 3 and the ultrafiltration membrane 5 flows in parallel through the waste water pipe and enters the second water tank 12 from the waste water discharge port. The waste water pipe is arranged at the bottom of the second water tank 12. After the waste water flows into the second water tank 12, part of the water and tap water flow into the hydrogen production structure by soaking through the second water inlet, and the impurities precipitate downward, trying to avoid discharging sewage.

[0058] In summary, for the preparation method provided by this application, according to different water source characteristics and the actual needs of users, the system can automatically and flexibly switch or simultaneously start the electrolytic hydrogen production and hydrogen production by soaking processes to meet different scenarios and needs;

[0059] In addition, it has strong adaptability to water sources and can complete the electrolytic hydrogen production process without forcibly adding pure water, which is more convenient;

[0060] Finally, the waste water with impurities generated during the filtration of the RO membrane filter and the ultrafiltration membrane flows in parallel through the waste water pipe and then returns to the water tank. Part of the water and tap water are introduced into the activated carbon filter 2 and the hydrogen production structure by soaking through a booster pump, and the impurities precipitate downward, reducing sewage discharge and being more environmentally friendly.

[0061] The above embodiments are only for explaining the technical concept and features of this solution, and the purpose is to enable those who are familiar with this technology to understand the content of this solution and implement it accordingly, and it cannot be used to limit the protection scope of this solution. Any equivalent transformation or modification made according to the spirit and essence of this solution should be covered within the protection scope of this solution.

[0062] In the description of this solution, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components.

[0063] For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances in this solution.

[0064] It should be understood that the above embodiments are merely exemplary and not restrictive. Without departing from the basic principles of this solution, various obvious or equivalent modifications or substitutions that those skilled in the art can make to the above details will all be included within the protection scope of this solution.

Claims

1. A method for preparing hydrogen-rich water, characterized in that, The following steps are involved: S1, water source enters the water tank; S2. Hydrogen-rich water is produced by electrolysis and / or immersion hydrogen production; S3, hydrogen-rich water mixing; S4, water discharge; In step S2, the water source in the water tank is introduced into the electrolytic hydrogen production component and the immersion hydrogen production component respectively, and the water source introduced into the electrolytic hydrogen production component is filtered through an activated carbon filter, an RO membrane filter, an ultrafiltration membrane, and an ion hydrogen mixer.

2. The method for preparing hydrogen-rich water according to claim 1, wherein: The water filtered by the activated carbon filter is introduced into the RO membrane filter on one side and then enters the electrolyzer after filtration; the other side is introduced into the ultrafiltration membrane filtration system and the hydrogen mixer in sequence for filtration, and the filtered water flows into the hydrogen mixing membrane.

3. The method for preparing hydrogen-rich water according to claim 2, wherein: Wastewater containing impurities is generated during the filtration process of the RO membrane filter and the ultrafiltration membrane, and flows back to the water tank through the wastewater pipe.

4. The method for preparing hydrogen-rich water according to claim 2, wherein: The hydrogen mixed membrane gas path is connected to the water electrolyzer. In the water electrolyzer, water is decomposed into hydrogen and oxygen. Oxygen is discharged from the oxygen outlet, and hydrogen enters the hydrogen mixed membrane from the hydrogen inlet pipe.

5. The method for preparing hydrogen-rich water according to claim 4, wherein: The water and hydrogen in the hydrogen mixed membrane are fully in contact, and hydrogen-rich water is formed by electrolytic hydrogen production and introduced into the nanofiltration membrane.

6. The method for preparing hydrogen-rich water according to claim 5, wherein: The nanofiltration membrane is connected to the immersion hydrogen production component, and the hydrogen-rich water generated by the immersion hydrogen production method is also introduced into the nanofiltration membrane.

7. The method for preparing hydrogen-rich water according to claim 6, characterized in that: The nanofiltration membrane is an inorganic ceramic-based nanofiltration membrane.

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