A high-pressure electrolysis ultra-high concentration hydrogen water machine

By designing a high-voltage electrolytic ultra-high concentration hydrogen water machine, using a partition to separate oxygen and hydrogen, and pressurization and cooling treatment through high-pressure oxygen supply and hydrogen supply structures, combined with the multiple impact mixing technology of high-pressure nozzles, the problem of hydrogen solubility in high-temperature solid oxide electrolytic water technology is solved, achieving efficient preparation of high-concentration hydrogen-rich water and oxygen-rich water, and effectively utilizing by-product oxygen.

CN119569187BActive Publication Date: 2025-05-06ZHEJIANG UNIV OF TECH
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Patent Information

Application Number
CN202510132043.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-02-06
Publication Date
2025-05-06
Estimated Expiration
2045-02-06

AI Technical Summary

Technical Problem

When preparing hydrogen, the existing high-temperature solid oxide electrolytic technology (SOEC) affects the solubility of hydrogen in water due to high temperatures, and the by-product oxygen cannot be effectively utilized.

Method used

A high-voltage electrolytic ultra-high concentration hydrogen water machine is designed to guide oxygen and hydrogen separately through the partition in the electrolytic box, and the gas is pressurized and cooled by using the high-pressure oxygen supply structure and the high-pressure hydrogen supply structure. Finally, the dissolved water is mixed multiple times through a high-pressure nozzle in the dissolution box to improve the solubility of hydrogen and oxygen.

Benefits of technology

It effectively improves the solubility of hydrogen and oxygen in water, ensures high purity of hydrogen-rich water and oxygen-rich water, and utilizes by-product oxygen, which increases economic benefits.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a high-pressure electrolysis ultra-high concentration hydrogen water machine, belonging to the technical field of water treatment equipment, the high-pressure electrolysis ultra-high concentration hydrogen water machine, including a frame, and also including an electrolysis box for preparing hydrogen using an electrolyte, the electrolysis box including a hollow main body, a cathode sheet that directly contacts the electrolyte to produce hydrogen, an anode sheet that produces oxygen, and a solid oxide electrolyte located between the cathode sheet and the anode sheet, and a partition separating oxygen and hydrogen is installed on the top of the cathode sheet and the anode sheet. The present invention sets a partition in the electrolysis box to separate the anode sheet and the cathode sheet in different spaces, and then separately draws out the prepared oxygen and hydrogen, avoiding oxygen mixing into hydrogen and affecting its dissolution in water, ensuring the effective content of hydrogen in the prepared hydrogen-rich water, and can also use the separately collected oxygen to prepare oxygen-rich water, directly utilize the byproduct oxygen, and increase economic benefits.
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Description

Technical Field

[0001] The invention belongs to the technical field of water treatment equipment, and in particular relates to a high-pressure electrolysis ultra-high concentration hydrogen water machine. Background Art

[0002] Hydrogen-rich water, also known as "hydrogen water", refers to drinking water containing trace amounts of hydrogen molecules. Most hydrogen-rich water machines use electrolysis to produce hydrogen-rich water, but only 1.83 ml of hydrogen can be dissolved in every 100 ml of water.

[0003] Hydrogen is currently prepared using high-temperature solid oxide electrolysis technology (SOEC). SOEC technology is known for its high efficiency and low energy consumption. Its operating temperature is as high as 650-900°C. The efficiency of the SOEC electrolysis cell is close to 100%, and the system energy consumption is minimal. The prepared hydrogen is then pressurized and mixed with water to increase the hydrogen content in the water to obtain hydrogen-rich water. However, due to the high temperature of the electrolysis environment, the temperature of the prepared hydrogen is also high. When it is dissolved by high-pressure impact with water, heat is also generated due to the flushing friction, and the high temperature will have an adverse effect on the amount of hydrogen dissolved in water. In view of this, a high-pressure electrolysis ultra-high concentration hydrogen water machine is provided. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a high-pressure electrolysis ultra-high concentration hydrogen water machine.

[0005] The technical solution adopted to solve the above technical problems is:

[0006] A high-pressure electrolysis ultra-high concentration hydrogen water machine, comprising a frame, and also comprising an electrolysis box for preparing hydrogen using an electrolyte, wherein the electrolysis box comprises a hollow main body, a cathode sheet for directly contacting the electrolyte to produce hydrogen, an anode sheet for producing oxygen, and a solid oxide electrolyte located between the cathode sheet and the anode sheet, wherein a partition is installed on the top of the cathode sheet and the anode sheet to separate oxygen and hydrogen;

[0007] A raw material pump that provides high-voltage electrolyte to the electrolytic box;

[0008] A high-pressure oxygen supply structure for pressurizing the generated oxygen;

[0009] A high-pressure hydrogen supply structure for pressurizing the generated hydrogen;

[0010] An intercooler connected in series in the high-pressure oxygen supply structure and the high-pressure hydrogen supply structure for cooling the gas;

[0011] A dissolving box for contacting the cooled and pressurized oxygen and hydrogen with dissolved water respectively, the dissolving box comprising a box body, a gas passage cavity provided in the middle of the box body, and a fan provided at the top opening of the gas passage cavity, the box body being provided with two mixing cavities adjacent to the gas passage cavity, the high-pressure oxygen supply structure and the high-pressure hydrogen supply structure allowing the high-pressure oxygen and high-pressure hydrogen to be counter-mixed with dissolved water in the two mixing cavities respectively;

[0012] A water supply pipe for providing dissolved water to the dissolving tank;

[0013] Lead the dissolved water out of the return pipe of the dissolution tank.

[0014] When in use, high-pressure electrolyte is provided to the electrolytic box through the raw material pump. Under high-temperature environment, hydrogen generated by the cathode plate is pressurized and input into one of the mixing chambers of the dissolution box through the high-pressure hydrogen supply structure. Oxygen generated by the anode plate is pressurized and input into another mixing chamber of the dissolution box through the high-pressure oxygen supply structure. The intercooler cools the gas during pressurized transportation. The water supply pipe provides continuous dissolved water for the dissolution box. The gas and dissolved water are mixed and counteracted. There is a continuous airflow in the gas cavity to continuously cool the mixing cavity, reduce the adverse effects of high temperature on solubility, and obtain high-concentration hydrogen-rich water and oxygen-rich water. The by-product oxygen obtained from hydrogen production is also effectively utilized and finally drawn out through the return pipe for separate storage.

[0015] Furthermore, the cathode sheet and the anode sheet adopt a plate-like structure with a U-shaped cross-section, and a flow channel connected to the high-pressure hydrogen supply structure is formed between the main body, the partition and the outer wall of the cathode sheet, and a collecting space connected to the high-pressure oxygen supply structure is formed between the main body, the partition and the inner wall of the anode sheet.

[0016] Through the above technical solution, in order to separately lead out the generated hydrogen and oxygen, a U-shaped cathode sheet is arranged in the main body below the partition, and the formed flow channel is used for high-temperature electrolyte and the generated hydrogen to flow through. The U-shaped anode sheet is arranged in the main body above the partition, and a separate collection space is formed above the flow channel. A notch is formed at the top opening of the anode sheet corresponding to the partition, so that the oxygen generated at the anode sheet can flow into the collection space.

[0017] Furthermore, a cathode sheet and an anode sheet form a group and multiple groups are provided, the straight end face of the cathode sheet is fixedly connected to the vertical inner wall of the main body, a gap is left between the curved end face of the cathode sheet and the vertical inner wall of the main body, an inlet hole is opened at one end of the main body corresponding to the flow channel, and an outlet hole is opened at the other end of the main body corresponding to the flow channel.

[0018] Through the above technical scheme, in order to improve the utilization rate of the electrolyte, multiple groups of cathode plates and anode plates are arranged in a staggered manner front and back in the main body to form a serpentine flow channel with a large effective surface area, which can improve the contact effect with the electrolyte. The inlet hole can provide electrolyte for electrolytic hydrogen production. Before power is turned on, distilled water flows into the inlet hole and is discharged from the outlet hole, so that internal cleaning can be carried out to ensure the cleanliness of the internal space of the main body.

[0019] Furthermore, the radius of the curved end face of the cathode sheet is smaller than the radius of the curved end face of the anode sheet, the center of the curved end face of the anode sheet and the center of the curved end face of the cathode sheet coincide with each other, and the solid oxide electrolyte is filled in the gap between the anode sheet and the cathode sheet.

[0020] Through the above technical scheme, in order to ensure that the electrons are evenly distributed on the cathode sheet, the distance between the cathode sheet and the anode sheet remains consistent, the thickness of the solid oxide electrolyte is uniform, and the distance of the electron transfer path is highly consistent, so that the electrons will not be concentrated and can be evenly dispersed to the entire cathode sheet, thereby ensuring the surface utilization of the cathode sheet.

[0021] Furthermore, the high-pressure oxygen supply structure is structurally identical to the high-pressure hydrogen supply structure, the high-pressure hydrogen supply structure includes an inlet pipe and an outlet pipe, the intercooler includes a plate heat exchanger, the heat medium inlet and the heat medium outlet of the plate heat exchanger are respectively equipped with an inlet pipe and an outlet pipe, and a heat exchange tube is installed between the refrigerant inlet and the refrigerant outlet of the plate heat exchanger.

[0022] Through the above technical solution, the high-pressure oxygen supply structure and the high-pressure hydrogen supply structure are two sets of devices with the same structure, which only differ in the gases transported. The oxygen and hydrogen drawn out from the flow channel and the collecting space can flow through the plate heat exchanger and the refrigerant for efficient cooling, thereby avoiding the high temperature of the gas affecting its solubility in water.

[0023] Furthermore, the box body is provided with a receiving cavity cooperating with the heat exchange tube adjacent to the air passage cavity, and the outer wall of the heat exchange tube within the receiving cavity is provided with fins, and the fins extend into the air passage cavity.

[0024] Through the above technical scheme, in order to provide a stable refrigerant for the plate heat exchanger, the accommodating cavity is a sealed space adjacent to the air cavity, the heat exchange tube is coiled in the accommodating cavity, and the fins are installed to extend into the air cavity. The heat in the refrigerant is transferred to the air passing through the air cavity, and the airflow in the air cavity is shared with the mixing cavity for cooling, and no other external heat dissipation equipment is required.

[0025] Furthermore, the high-pressure hydrogen supply structure also includes a boost pump, the inlet of the boost pump is conductively connected to the outlet pipe, the outlet of the boost pump is connected to a distribution pipe, a purifier is installed in series between the boost pump and the distribution pipe, and the distribution pipe is installed with high-pressure nozzle 1, high-pressure nozzle 2 and high-pressure nozzle 3 in parallel.

[0026] Through the above technical scheme, in order to ensure that the gas is fully dissolved in water, the gas is pressurized before entering the box, and the high-pressure nozzles one, two and three spray the high-pressure gas into the air cavity in a zone, so that it is fully in contact with the dissolved water, and the impurities entrained are reduced through the purifier to prevent solid impurities from reducing the solubility of the gas in water. The box plate is a metal thin plate with high thermal conductivity, which can dissipate the heat generated by the high-speed collision of gas and liquid in the air cavity in time, ensuring that the mixing cavity is in a low-temperature state suitable for dissolution.

[0027] Furthermore, the high-pressure nozzle one and the high-pressure nozzle two are stacked up and down in the mixing chamber, the water supply pipe is provided with a horizontal branch pipe above the high-pressure nozzle one, a dispersion plate is provided between the water supply pipe and the high-pressure nozzle one, a guide plate is installed between the high-pressure nozzle one and the high-pressure nozzle two, a reversing block is installed below the high-pressure nozzle two, and the reversing block is provided with an inclined surface near the outlet of the high-pressure nozzle two.

[0028] Through the above technical scheme, high-pressure nozzle one and high-pressure nozzle two are arranged up and down, and in the process of dissolved water entering from the top flowing downward, the gas is blown into the dissolved water in batches for dissolution, and under the guidance of the dispersion plate, the dissolved water entering in a columnar shape is dispersed to the entire mixing chamber and flows downward, and is dispersed, offset and mixed with the high-pressure gas sprayed from multiple nozzles of the high-pressure nozzle one, and the water flow passing through the position of the high-pressure nozzle one is gathered by the guide plate to the position of the high-pressure nozzle two, and the high-pressure gas sprayed from multiple nozzles of the high-pressure nozzle two is dispersed, offset and mixed again, and multiple dispersion and gathering can increase the surface area of ​​hydrogen in contact with water, thereby improving the solubility.

[0029] Furthermore, the bottom end of the dispersion plate is fixedly connected to the guide plate, and the dispersion plate and the guide plate form a water storage space above the high-pressure nozzle. The dispersion plate is provided with a plurality of openings arranged equidistantly at an outlet of the high-pressure nozzle, and a slit is formed between the bottom end of the guide plate and the inner wall of the box body, and the reversing block is fixed on the inner wall of the box body below the slit.

[0030] Through the above technical scheme, the dissolved water entering is gathered in the water storage space and sprayed out through the openings, thereby increasing the impact flow rate between the dissolved water and the gas. The impact breaks the dissolved water into water mist with smaller particles, which helps hydrogen to diffuse into the dissolved water faster. The slits make the dissolved water that has been dispersed and converged again dispersed here again, and come into uniform contact with the high-pressure gas at the second position of the high-pressure nozzle again and be broken by the impact. Multiple impacts increase the solubility of the gas in the dissolved water.

[0031] Furthermore, the high-pressure nozzle three is located below the high-pressure nozzle two, and the return pipe is provided with a vertical branch pipe with an opening located above the high-pressure nozzle three, and the top of the vertical branch pipe is arranged below the bottom surface of the reversing block.

[0032] Through the above technical solution, the vertical branch pipe is set higher than the high-pressure nozzle three, so that the dissolved water gathers at the position of the high-pressure nozzle three, and the high-pressure nozzle three sprays gas vertically downward to form an impact airflow below the liquid surface of the dissolved water. Before the dissolved water flows into the return pipe, it continues to contact with the gas, thereby ensuring the contact time between the gas and the dissolved water.

[0033] The beneficial effects of the present invention are as follows:

[0034] (1) The present invention adopts the design of the electrolytic box and arranges a partition in the electrolytic box to separate the anode plate and the cathode plate into different spaces, thereby leading out the prepared oxygen and hydrogen separately, avoiding the mixing of oxygen into hydrogen and affecting the dissolution of hydrogen in water, thereby ensuring the effective content of hydrogen in the prepared hydrogen-rich water, and further utilizing the separately collected oxygen to prepare oxygen-rich water, thereby directly utilizing the byproduct oxygen and increasing economic benefits;

[0035] (2) The present invention pressurizes the drawn hydrogen and oxygen by setting up a high-pressure oxygen supply structure and a high-pressure hydrogen supply structure, and uses an intercooler to cool the gaseous hydrogen and oxygen. The cooled hydrogen and oxygen can also be purified to ensure that the hydrogen and oxygen are in a clean and low-temperature state before dissolution, thereby avoiding the adverse effect of the initial temperature of hydrogen and oxygen being too high on the dissolution;

[0036] (3) The present invention optimizes the dissolution box so that oxygen and hydrogen are dissolved into water in two mixing chambers respectively without interfering with each other. When the dissolved water flows through the mixing chamber from top to bottom, it is impacted and dispersed by the high-pressure gas multiple times and then converged again. The gas is efficiently dissolved in the dissolved water by increasing the contact area and prolonging the contact time. A gas cavity is provided to dissipate the heat generated by the high-speed impact, thereby producing high-purity hydrogen-rich water and oxygen-rich water. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a first perspective structural diagram of the present invention;

[0038] Figure 2 It is a second viewing angle structural diagram of the present invention;

[0039] Figure 3 It is a schematic diagram of the internal structure of the electrolytic box of the present invention;

[0040] Figure 4 The structure diagram of the high pressure hydrogen supply structure and the intercooler of the present invention is shown in FIG. Figure 1 ;

[0041] Figure 5 The structure diagram of the high pressure hydrogen supply structure and the intercooler of the present invention is shown in FIG. Figure 2 ;

[0042] Figure 6 is a schematic cross-sectional view of a dissolution box of the present invention;

[0043] Figure 7 It is a schematic diagram of the structure of the water supply pipe and the water return pipe of the present invention;

[0044] Figure 8 It is a schematic diagram of the positions of the high-pressure oxygen supply structure, the high-pressure hydrogen supply structure and the mixing box of the present invention;

[0045] Fig. 9 It is a schematic diagram of the position between the high-pressure hydrogen supply structure and the mixing box of the present invention.

[0046] Reference numerals: 1, frame; 2, electrolytic box; 21, main body; 22, cathode plate; 23, anode plate; 24, solid oxide electrolyte; 25, partition; 26, inlet hole; 27, flow channel; 28, collecting space; 29, outlet hole; 3, high-pressure oxygen supply structure; 4, intercooler; 41, plate heat exchanger; 42, heat exchange tube; 43, fin; 5, high-pressure hydrogen supply structure; 51, inlet pipe; 52, outlet pipe; 53 , booster pump; 54, purifier; 55, distribution pipe; 56, high-pressure nozzle one; 57, high-pressure nozzle two; 58, high-pressure nozzle three; 6, dissolving box; 61, box body; 62, air passage chamber; 63, fan; 64, containing chamber; 65, mixing chamber; 66, dispersion plate; 67, guide plate; 68, reversing block; 69, inclined plane; 7, water supply pipe; 71, horizontal branch pipe; 8, return pipe; 81, vertical branch pipe; 9, raw material pump. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0048] like Figure 1-Figure 9 As shown, this embodiment provides a high-voltage electrolysis ultra-high concentration hydrogen water machine, including a frame 1, the frame 1 is a metal frame, providing a mounting position, for preparing hydrogen, using an electrolyte to prepare hydrogen, referring to Figure 2 , the raw material pump 9 provides high-voltage electrolyte to the electrolytic box 2, and the raw material pump 9 can use a metering pump to ensure that the amount of electrolyte is controllable;

[0049] Reference Figure 3 The electrolytic box 2 includes a hollow main body 21, in which a cathode sheet 22 for generating hydrogen in direct contact with an electrolyte and an anode sheet 23 for generating oxygen are installed. At the same time, a solid oxide electrolyte 24 between the cathode sheet 22 and the anode sheet 23 can generate hydrogen and oxygen in a high temperature environment after power is supplied;

[0050] Reference Figure 1 , the high-pressure hydrogen supply structure 5 pressurizes the generated hydrogen to form high-pressure hydrogen;

[0051] To ensure the effective utilization of by-product (oxygen), refer to Figure 3 , a separator 25 is installed on the top of the cathode sheet 22 and the anode sheet 23 to separate oxygen and hydrogen, so that hydrogen and oxygen can be led out separately to avoid oxygen mixing into hydrogen and affecting the purity of hydrogen. Impurities in water, such as other gases or dissolved salts, may affect the solubility of hydrogen, so avoiding the introduction of oxygen into dissolved water can avoid affecting the solubility of hydrogen in dissolved water;

[0052] Reference Figure 2 , the high-pressure oxygen supply structure 3 pressurizes the generated oxygen to form high-pressure oxygen;

[0053] To avoid the effect of high temperature on solubility, refer to Figure 4 and Figure 5 The intercooler 4 is connected in series to the high-pressure oxygen supply structure 3 and the high-pressure hydrogen supply structure 5 to cool the gas to prevent excessive temperature from affecting the solubility of the gas in the dissolved water;

[0054] Reference Figure 7 , the water supply pipe 7 provides dissolved water to the dissolving box 6, the dissolved water and the high-pressure gas are offset in the dissolving box 6, and the gas can be dissolved into the dissolved water to form hydrogen-rich water and oxygen-rich water;

[0055] The dissolving box 6 contacts the cooled and pressurized oxygen and hydrogen with the dissolved water respectively. Figure 8 and Fig. 9 The dissolving box 6 includes a box body 61, an air passage cavity 62 which is arranged in the middle of the box body 61, and a fan 63 which is arranged at the top opening of the air passage cavity 62. Two mixing cavities 65 are arranged in the box body 61 adjacent to the air passage cavity 62. The high-pressure oxygen supply structure 3 and the high-pressure hydrogen supply structure 5 allow the high-pressure oxygen and the high-pressure hydrogen to be mixed with the dissolved water in the two mixing cavities 65 respectively. During the counter-dissolving process, the fan 63 works in the air passage cavity 62 to generate a continuous airflow, which blows through the mixing cavity 65 from top to bottom to effectively cool down the air, thereby preventing the heat generated by the high-speed counter-attack of gas and liquid from affecting the solubility of the gas in the dissolved water.

[0056] The return pipe 8 leads the dissolved water out of the dissolution tank 6 and is packaged separately according to the classification of hydrogen-rich water and oxygen-rich water.

[0057] In a further embodiment, a specific configuration is provided to separately lead out the generated hydrogen and oxygen, referring to Figure 3The cathode sheet 22 and the anode sheet 23 adopt a plate structure with a U-shaped cross-section. The U-shaped cathode sheet 22 is arranged in the main body 21 below the partition 25. A flow channel 27 is formed between the main body 21, the partition 25 and the outer wall of the cathode sheet 22 for high-temperature electrolyte and generated hydrogen to flow through. The flow channel 27 is connected to the high-pressure hydrogen supply structure 5, and the hydrogen can be led out separately. A collecting space 28 is formed between the main body 21, the partition 25 and the inner wall of the anode sheet 23. The U-shaped anode sheet 23 is arranged in the main body 21 above the partition 25. The collecting space 28 is above the flow channel 27. The partition 25 forms a notch corresponding to the top opening of the anode sheet 23, so that the oxygen generated at the anode sheet 23 flows into the collecting space 28, and the oxygen is separately led out by the high-pressure oxygen supply structure 3.

[0058] In a further embodiment, in order to improve the utilization rate of the electrolyte, refer to Figure 3 A cathode sheet 22 and an anode sheet 23 form a group, and multiple groups are provided. The multiple groups of cathode sheets 22 and anode sheets 23 are arranged in a front-to-back staggered manner in the main body 21. Specifically, the straight end surface of the cathode sheet 22 is fixedly connected to the vertical inner wall of the main body 21, and a gap is left between the curved end surface of the cathode sheet 22 and the vertical inner wall of the main body 21, that is, a single-channel serpentine flow channel 27 is formed. With this position arrangement, the effective surface area of ​​the cathode sheet 22 is large, which can improve the contact effect with the electrolyte.

[0059] In a further embodiment, the cathode sheet 22 and the anode sheet 23 in the above embodiment are designed to be coaxially sleeved into a ring shape, the anode sheet 23 is located on the inner side of the cathode sheet 22, the circumferential outer wall of the cathode sheet 22 can contact the electrolyte, the holes in the anode sheet 23 can allow the generated oxygen to flow upward, and gaps are left between adjacent cathode sheets 22, that is, a multi-channel flow channel 27 is formed, which can ensure that the electrolyte can flow in a dispersed manner and simultaneously perform electrolysis to produce hydrogen.

[0060] In a further embodiment, an inlet hole 26 is opened at one end of the main body 21 corresponding to the flow channel 27, and an outlet hole 29 is opened at the other end of the main body 21 corresponding to the flow channel 27. The inlet hole 26 can provide electrolyte for electrolytic hydrogen production. Before power is turned on, distilled water flows into the inlet hole 26 to fill the flow channel 27, and the distilled water is discharged from the outlet hole 29 for internal cleaning to ensure the cleanliness of the internal space of the main body 21.

[0061] In a further embodiment, to ensure that the electrons are evenly distributed on the cathode plate 22, refer to Figure 3The radius of the curved end face of the cathode sheet 22 is smaller than the radius of the curved end face of the anode sheet 23, the center of the curved end face of the anode sheet 23 coincides with the center of the curved end face of the cathode sheet 22, the spacing between the cathode sheet 22 and the anode sheet 23 remains consistent, the solid oxide electrolyte 24 is filled in the gap between the anode sheet 23 and the cathode sheet 22, the thickness of the solid oxide electrolyte 24 is uniform, and the distance consistency of the electron transfer path is high, so that the electrons will not be concentrated, and can be evenly dispersed to the entire cathode sheet 22, thereby ensuring the surface utilization of the cathode sheet 22.

[0062] In a further embodiment, referring to Figure 1 , Figure 4 and Figure 5 The high-pressure oxygen supply structure 3 is identical to the high-pressure hydrogen supply structure 5 in structure, and differs only in the gases transported, namely, oxygen and hydrogen drawn out from the flow channel 27 and the collecting space 28, wherein the high-pressure hydrogen supply structure 5 comprises an inlet pipe 51 and an outlet pipe 52 for gas to pass through, the intercooler 4 comprises a plate heat exchanger 41, the heat medium inlet and the heat medium outlet of the plate heat exchanger 41 are respectively provided with an inlet pipe 51 and an outlet pipe 52, a heat exchange tube 42 is provided between the refrigerant inlet and the refrigerant outlet of the plate heat exchanger 41, the prepared hydrogen and oxygen can flow through the plate heat exchanger 41 and be efficiently cooled with the refrigerant, thereby avoiding the high temperature of the gas affecting its solubility in water.

[0063] In a further embodiment, the intercooler 4 in the above embodiment can be replaced by a pipe with a metal sheet on the circumferential outer wall, and a fan can be used for independent cooling.

[0064] In a further embodiment, the intercooler 4 in the above embodiment can be replaced by a hollow metal plate, and the metal plate is immersed in a cold water pool with flowing cold water, so that low-energy cooling can be performed.

[0065] In a further embodiment, in order to provide a temperature-stable refrigerant to the plate heat exchanger 41, a specific configuration is provided, referring to Figure 5 and Figure 6 A receiving chamber 64 cooperating with the heat exchange tube 42 is provided in the box body 61 adjacent to the air cavity 62. The receiving chamber 64 is a sealed space adjacent to the air cavity 62. The heat exchange tube 42 is coiled in the receiving chamber 64. Fins 43 are installed on the outer wall of the heat exchange tube 42 within the range of the receiving chamber 64. The fins 43 penetrate the box plate of the box body 61 and extend into the air cavity 62. The heat in the refrigerant is transferred to the air passing through the air cavity 62, and the airflow in the air cavity 62 is shared with the mixing chamber 65 for cooling, and no other external heat dissipation equipment is required.

[0066] In a further embodiment, to ensure that the gas is fully dissolved in water, refer to Figure 4 and Figure 5The high-pressure hydrogen supply structure 5 also includes a booster pump 53, which boosts the gas before the gas enters the box body 61. The inlet of the booster pump 53 is connected to the outlet pipe 52, and the outlet of the booster pump 53 is connected to a distribution pipe 55. The distribution pipe 55 is equipped with a high-pressure nozzle 1 56, a high-pressure nozzle 2 57 and a high-pressure nozzle 3 58 in parallel. The high-pressure nozzle 1 56, the high-pressure nozzle 2 57 and the high-pressure nozzle 3 58 divide the high-pressure gas into the gas cavity 62 for full contact with the dissolved water. The box plate of the box body 61 is a metal sheet with high thermal conductivity, which can dissipate the heat generated by the high-speed collision of gas and liquid in the gas cavity 62 in time, ensuring that the mixing cavity 65 is in a low-temperature state suitable for dissolution.

[0067] In a further embodiment, referring to Figure 5 A purifier 54 is installed in series between the boost pump 53 and the distribution pipe 55. The purifier 54 can reduce the impurities contained and separate the residual electrolyte from the gas for recycling, thereby preventing solid impurities from reducing the solubility of the gas in water.

[0068] In a further embodiment, referring to Figure 8 The high-pressure nozzle 1 56 and the high-pressure nozzle 2 57 are stacked up and down in the mixing chamber 65. The high-pressure nozzle 1 56 and the high-pressure nozzle 2 57 are arranged up and down. Among them, the water supply pipe 7 is located above the high-pressure nozzle 1 56 and is provided with a horizontal branch pipe 71. In the process of the dissolved water entering from the top flowing downward, the gas is blown into the dissolved water in batches for dissolution. At the same time, a dispersion plate 66 is provided between the water supply pipe 7 and the high-pressure nozzle 1 56. Under the guidance of the dispersion plate 66, the columnar dissolved water entering is dispersed to the entire mixing chamber 65 and flows downward, and the multiple nozzles of the high-pressure nozzle 1 56 are connected. The ejected high-pressure gas is dispersed, counter-mixed, and a guide plate 67 is installed between the high-pressure nozzle 1 56 and the high-pressure nozzle 2 57. A reversing block 68 is installed below the high-pressure nozzle 2 57. The reversing block 68 is provided with a slope 69 near the outlet of the high-pressure nozzle 2 57. The water flow passing through the position of the high-pressure nozzle 1 56 is collected by the guide plate 67 to the position of the high-pressure nozzle 2 57. The high-pressure gas ejected from multiple nozzles of the high-pressure nozzle 2 57 is dispersed, counter-mixed again. Multiple dispersion and collection can increase the surface area of ​​hydrogen in contact with water, thereby improving the solubility.

[0069] In a further embodiment, referring to Fig. 9The bottom end of the dispersion plate 66 is fixedly connected to the guide plate 67, and the dispersion plate 66 and the guide plate 67 form a water storage space above the high-pressure nozzle 56. The dissolved water entering is gathered in the water storage space and sprayed out through the openings. The dispersion plate 66 is provided with a plurality of openings arranged equidistantly at the outlet of the high-pressure nozzle 56 to increase the impact flow rate between the dissolved water and the gas. The impact breaks the dissolved water into water mist with smaller particles, which helps hydrogen to diffuse into the dissolved water faster. A slit is formed between the bottom end of the guide plate 67 and the inner wall of the box 61. The slit allows the dissolved water that is dispersed and converged again to be dispersed again here. The reversing block 68 is fixed to the inner wall of the box 61 below the slit. The dissolved water dispersed into lines is evenly contacted with the high-pressure gas at the position of the high-pressure nozzle 57 again and is impacted and broken. Multiple impacts increase the solubility of the gas in the dissolved water.

[0070] In a further embodiment, the high-pressure nozzle three 58 is located below the high-pressure nozzle two 57, and the vertical branch pipe 81 is arranged higher than the high-pressure nozzle three 58, so that the dissolved water gathers at the position of the high-pressure nozzle three 58. The return pipe 8 is provided with a vertical branch pipe 81 with an opening located above the high-pressure nozzle three 58, and the top of the vertical branch pipe 81 is arranged lower than the bottom surface of the reversing block 68. The high-pressure nozzle three 58 sprays gas vertically downward to form an impact airflow below the liquid level of the dissolved water. Before the dissolved water flows into the return pipe 8, it continues to contact with the gas, thereby ensuring the contact time between the gas and the dissolved water, further improving the solubility of the gas in the dissolved water, and obtaining high-concentration hydrogen water or oxygen water.

[0071] The working principle of this embodiment is as follows:

[0072] When in use, the raw material pump 9 provides high-pressure electrolyte to the electrolytic box 2, which contacts the surface of the cathode sheet 22 under a high-temperature environment. The cathode sheet 22 is staggered in the main body 21 to form a flow channel 27. The effective contact area between the electrolyte and the cathode sheet 22 is large, and the hydrogen production efficiency is high. The cathode sheet 22 generates hydrogen and is collected separately. It is pressurized and input into one of the mixing chambers 65 of the dissolution box 6 through the high-pressure hydrogen supply structure 5. Similarly, the anode sheet 23 generates oxygen and is collected separately. It is pressurized and input into another mixing chamber 65 of the dissolution box 6 through the high-pressure oxygen supply structure 3. The intercooler 4 cools the gas during pressurized transportation.

[0073] The water supply pipe 7 provides continuous dissolved water for the dissolution box 6, and the dissolved water enters the mixing chamber 65 from top to bottom. The high-pressure nozzle 1 56, the high-pressure nozzle 2 57 and the high-pressure nozzle 3 58 spray high-pressure gas into the mixing chamber 65 in three areas of high, medium and low. The high-pressure gas and dissolved water are impacted and mixed many times, and the dissolved water is impacted and broken into water mist and converged and concentrated. This is repeated many times in the process of flowing from top to bottom. Before the dissolved water flows out of the mixing chamber 65, the high-pressure nozzle 3 58 continuously blows high-pressure airflow into the dissolved water, so that the gas has sufficient time to contact the dissolved water. There is a continuous airflow in the air chamber 62 to continuously cool the mixing chamber 65, reduce the adverse effects of high temperature on solubility, and obtain high-concentration hydrogen-rich water and oxygen-rich water. The by-product oxygen obtained by hydrogen production is also effectively utilized and finally led out through the return pipe 8 for separate storage.

[0074] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention.

Claims

1. A high-pressure electrolysis ultra-high concentration hydrogen water machine, comprising a frame (1), characterized in that: Also includes; An electrolytic box (2) for preparing hydrogen using an electrolyte, the electrolytic box (2) comprising a hollow main body (21), a cathode sheet (22) for producing hydrogen in direct contact with the electrolyte, an anode sheet (23) for producing oxygen, and a solid oxide electrolyte (24) located between the cathode sheet (22) and the anode sheet (23), wherein a separator (25) for separating oxygen and hydrogen is installed on the top of the cathode sheet (22) and the anode sheet (23); A raw material pump (9) for supplying high-pressure electrolyte to the electrolytic box (2); A high-pressure oxygen supply structure (3) for pressurizing the generated oxygen; A high-pressure hydrogen supply structure (5) for pressurizing the generated hydrogen gas; An intercooler (4) connected in series between the high-pressure oxygen supply structure (3) and the high-pressure hydrogen supply structure (5) for cooling the gas; A dissolving box (6) for bringing the cooled and pressurized oxygen and hydrogen into contact with dissolved water respectively, the dissolving box (6) comprising a box body (61), an air passage cavity (62) arranged in the middle of the box body (61), and a fan (63) arranged at the top opening of the air passage cavity (62), the box body (61) being provided with two mixing cavities (65) adjacent to the air passage cavity (62), the high-pressure oxygen supply structure (3) and the high-pressure hydrogen supply structure (5) allowing the high-pressure oxygen and high-pressure hydrogen to be counter-mixed with the dissolved water in the two mixing cavities (65); A water supply pipe (7) for providing dissolved water to the dissolving tank (6); A return pipe (8) for leading the dissolved water out of the dissolution tank (6); The high-pressure oxygen supply structure (3) is structurally identical to the high-pressure hydrogen supply structure (5), the high-pressure hydrogen supply structure (5) comprising an inlet pipe (51) and an outlet pipe (52), the intercooler (4) comprising a plate heat exchanger (41), the heat medium inlet and the heat medium outlet of the plate heat exchanger (41) being respectively provided with an inlet pipe (51) and an outlet pipe (52), and a heat exchange pipe (42) being provided between a refrigerant inlet and a refrigerant outlet of the plate heat exchanger (41); The box body (61) is provided with a receiving cavity (64) cooperating with the heat exchange tube (42) in close proximity to the air passage cavity (62); fins (43) are installed on the outer wall of the heat exchange tube (42) within the range of the receiving cavity (64); and the fins (43) extend into the air passage cavity (62).

2. The high-pressure electrolysis ultra-high concentration hydrogen water machine according to claim 1, characterized in that: The cathode sheet (22) and the anode sheet (23) are plate-shaped structures with a U-shaped cross section. A flow channel (27) communicating with a high-pressure hydrogen supply structure (5) is formed between the main body (21), the partition (25) and the outer wall of the cathode sheet (22). A collecting space (28) communicating with a high-pressure oxygen supply structure (3) is formed between the main body (21), the partition (25) and the inner wall of the anode sheet (23).

3. The high-pressure electrolysis ultra-high concentration hydrogen water machine according to claim 2, characterized in that: A cathode sheet (22) and an anode sheet (23) form a group and a plurality of groups are provided. The straight end surface of the cathode sheet (22) is fixedly connected to the vertical inner wall of the main body (21). A gap is left between the curved end surface of the cathode sheet (22) and the vertical inner wall of the main body (21). An inlet hole (26) is provided at one end of the main body (21) corresponding to the flow channel (27), and an outlet hole (29) is provided at the other end of the main body (21) corresponding to the flow channel (27).

4. The high-pressure electrolysis ultra-high concentration hydrogen water machine according to claim 2, characterized in that: The radius of the curved end face of the cathode sheet (22) is smaller than the radius of the curved end face of the anode sheet (23), the center of the curved end face of the anode sheet (23) and the center of the curved end face of the cathode sheet (22) coincide with each other, and the solid oxide electrolyte (24) is filled in the gap between the anode sheet (23) and the cathode sheet (22).

5. The high-pressure electrolysis ultra-high concentration hydrogen water machine according to claim 1, characterized in that: The high-pressure hydrogen supply structure (5) further comprises a booster pump (53), the inlet of the booster pump (53) being conductively connected to the outlet pipe (52), the outlet of the booster pump (53) being connected to a distribution pipe (55), a purifier (54) being installed in series between the booster pump (53) and the distribution pipe (55), and the distribution pipe (55) being installed in parallel with a high-pressure nozzle 1 (56), a high-pressure nozzle 2 (57) and a high-pressure nozzle 3 (58).

6. The high-pressure electrolysis ultra-high concentration hydrogen water machine according to claim 5, characterized in that: The high-pressure nozzle one (56) and the high-pressure nozzle two (57) are stacked up and down in the mixing chamber (65); the water supply pipe (7) is provided with a transverse branch pipe (71) above the high-pressure nozzle one (56); a dispersion plate (66) is provided between the water supply pipe (7) and the high-pressure nozzle one (56); a guide plate (67) is installed between the high-pressure nozzle one (56) and the high-pressure nozzle two (57); a reversing block (68) is installed below the high-pressure nozzle two (57); and a slope (69) is provided on the reversing block (68) near the outlet of the high-pressure nozzle two (57).

7. The high-pressure electrolysis ultra-high concentration hydrogen water machine according to claim 6, characterized in that: The bottom end of the dispersion plate (66) is fixedly connected to the guide plate (67), and the dispersion plate (66) and the guide plate (67) form a water storage space above the high-pressure nozzle (56). The dispersion plate (66) is provided with a plurality of openings arranged at equal intervals at an outlet of the high-pressure nozzle (56). A slit is formed between the bottom end of the guide plate (67) and the inner wall of the box (61), and the reversing block (68) is fixed to the inner wall of the box (61) below the slit.

8. The high-pressure electrolysis ultra-high concentration hydrogen water machine according to claim 6, characterized in that: The high-pressure nozzle pipe three (58) is located below the high-pressure nozzle pipe two (57), and the return pipe (8) is provided with a vertical branch pipe (81) whose opening is located above the high-pressure nozzle pipe three (58), and the top of the vertical branch pipe (81) is arranged below the bottom surface of the reversing block (68).

Citation Information

Patent Citations

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