Hydrogen production and dissolution system and method

Abstract

Disclosed in the present invention are a hydrogen production and dissolution system and method. The hydrogen production and dissolution system comprises a power supply assembly, an electrolysis assembly, a treatment assembly, a reaction assembly, and a safety assembly. The treatment assembly comprises a gas-liquid separator, and the gas-liquid separator is communicated with an electrolyzer; the reaction assembly comprises a pressure booster and reaction tanks, the pressure booster has one end communicated with the gas-liquid separator and the other end communicated with the reaction tanks, the pressure booster pressurizes the reaction tanks, and an ultrasonic generator is provided in each reaction tank; and the safety assembly comprises leakage sensors, and each leakage sensor is arranged on a side of a corresponding reaction tank. The hydrogen production and dissolution method is used for controlling the hydrogen production and dissolution system. The present invention can directly dissolve the produced hydrogen in water, thereby reducing potential safety hazards while eliminating the need for storage and transportation devices.

Description

Hydrogen production and hydrogen dissolving system and method TECHNICAL FIELD

[0001] The present application relates to the technical field of hydrogen production and hydrogen dissolving method, and particularly relates to a hydrogen production and hydrogen dissolving system and method. BACKGROUND

[0002] Hydrogen energy is a clean, efficient and renewable energy, and dissolving hydrogen gas into water to form hydrogen-rich water is an application technology under development. Hydrogen water formed by dissolving hydrogen gas in water not only has unique health and wellness effects, but also has great application potential in water purification and wastewater treatment. Traditional hydrogen production technologies mainly include water electrolysis and fossil fuel hydrogen production methods. In actual operation, water electrolysis is more common. Traditional water electrolysis usually relies on core equipment such as electrolytic cells and collection tanks. The electrolytic cell is responsible for decomposing water into hydrogen and oxygen, and the collection tank is used to store the generated hydrogen. However, when hydrogen is needed, it needs to be transported or delivered, and then dissolved in water through specific dissolving equipment or technology. This process faces some challenges. On the one hand, traditional production technology needs to transport or deliver hydrogen from the electrolytic cell to the dissolving equipment, which involves multiple links and equipment, increasing the complexity of operation and possibly causing loss of hydrogen during transportation. On the other hand, hydrogen is an extremely easy-to-leak and explosive gas, and its storage and transfer process poses potential safety hazards. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a hydrogen production and hydrogen dissolving system that can directly dissolve hydrogen gas with water, saving storage and transportation equipment while reducing safety hazards.

[0004] To solve the above technical problems, the present application provides a hydrogen production and hydrogen dissolving system, comprising a power supply assembly, an electrolysis assembly, a processing assembly, a reaction assembly and a safety assembly, the power supply assembly is electrically connected with an external power source, the electrolysis assembly comprises a water tank, an electrolyzer and a pump, the water tank is in communication with the pump, the pump is in communication with the electrolyzer, and the electrolyzer is electrically connected with the power supply assembly.

[0005] The processing assembly comprises a gas-liquid separator, the gas-liquid separator is in communication with the electrolyzer, the reaction assembly comprises a booster and a reaction tank, one end of the booster is in communication with the gas-liquid separator, the other end of the booster is in communication with the reaction tank, the booster pressurizes the reaction tank, the reaction tank is provided with an ultrasonic generator, and the safety assembly comprises a leakage sensor, the leakage sensor is arranged on the side of the reaction tank.

[0006] As an improvement of the above scheme, the electrolysis assembly further comprises a water chilling unit, the pump is arranged below the water tank, the input end of the pump is communicated with the water tank, the output end of the pump is communicated with the inlet of the water chilling unit, and the outlet of the water chilling unit is communicated with the electrolyzer.

[0007] As an improvement of the above scheme, the electrolyzer comprises a water inlet, a hydrogen outlet, an oxygen outlet, a negative electrode connecting port and a positive electrode connecting port, the water inlet is communicated with the external water chilling unit, the hydrogen outlet is communicated with the gas-liquid separator, the oxygen outlet is communicated with the water tank, and the negative electrode connecting port and the positive electrode connecting port are respectively connected with the electrodes of the power supply assembly.

[0008] As an improvement of the above scheme, the processing assembly further comprises a purifier, a cooling bin and a precision filter, the gas-liquid separator comprises a hydrogen outlet, the hydrogen outlet is communicated with the inlet end of the purifier, the purifier is communicated with an external heat source, one end of the cooling bin is communicated with the outlet end of the purifier, the other end of the cooling bin is communicated with the pressure booster, the cooling bin is communicated with an external cooling device, and the precision filter is arranged between the gas-liquid separator and the purifier and between the purifier and the cooling bin.

[0009] As an improvement of the above scheme, the gas-liquid separator is communicated with an external cooling device, and the gas-liquid separator further comprises a liquid outlet, the liquid outlet is communicated with the bottom of the water tank.

[0010] As an improvement of the above scheme, the number of the reaction tanks is multiple and the reaction tanks are arranged in an inclined manner, the included angle between the center line of the reaction tank and the horizontal plane ranges from 40° to 50°, and an electromagnetic valve is arranged between the pressure booster and each reaction tank.

[0011] The application further provides a hydrogen production and dissolution method applied to the hydrogen production and dissolution system.

[0012] a) Real-time detection of the water level and water temperature of the water tank, when the water level of the water tank rises to a preset water level value and the water temperature reaches a preset water temperature value, the pump is started;

[0013] b) Starting the electrolyzer to electrolyze water, real-time detection of the flow rate of hydrogen, when the flow rate of hydrogen reaches a preset hydrogen flow rate value, the pressure booster is started to pressurize the reaction tank;

[0014] c) Real-time detection of the pressure in the reaction tank, when the pressure in the tank reaches a preset reaction pressure value, the ultrasonic generator is started to pressurize the reaction tank and start timing, when the time reaches a preset reaction time value, the ultrasonic generator and the pressure booster are turned off and the reaction tank is depressurized.

[0015] As the improvement of the above-mentioned scheme, further comprising the following steps:

[0016] The temperature of the water in the water tank is controlled by using a water chilling unit, so that the water temperature reaches the water temperature preset value and is kept within the water temperature preset range.

[0017] After the electrolyzer is started to produce hydrogen by electrolysis of water, the hydrogen is first subjected to gas-liquid separation by a gas-liquid separator, the liquid level in the gas-liquid separator is detected in real time, and after the liquid level reaches the preset value, the liquid in the gas-liquid separator is introduced into the water tank.

[0018] The hydrogen gas from the gas-liquid separator is first introduced into the purifier for purification, in which process, the purifier is heated by using an external heat source, and after being heated to the purification set temperature, the hydrogen gas is kept at the set temperature, and then the purified hydrogen gas is introduced into the cooling bin, and the external cooling device cools the hydrogen gas through the cooling bin, and after the hydrogen gas temperature is reduced to the cooling preset temperature, the hydrogen gas is introduced into the reaction tank.

[0019] As the improvement of the above-mentioned scheme, further comprising the following steps:

[0020] The booster is in communication with a plurality of reaction tanks, and the plurality of reaction tanks are alternately subjected to pressurization, pressure maintenance and pressure relief:

[0021] When the previous reaction tank completes pressurization, pressure maintenance and pressure relief in sequence, the next reaction tank is started to be subjected to pressurization, pressure maintenance and pressure relief in sequence.

[0022] Before the current reaction tank completes pressurization, pressure maintenance and pressure relief, the electromagnetic valves corresponding to other reaction tanks are closed, and after the current reaction tank completes pressurization, pressure maintenance and pressure relief, the electromagnetic valve corresponding to the reaction tank is closed, and the electromagnetic valve corresponding to the next reaction tank is opened.

[0023] As the improvement of the above-mentioned scheme, the water temperature preset value is between 20℃ and 28℃, the reaction pressure preset value and the reaction time preset value of each reaction tank can be individually set, and the reaction pressure preset value is between 1.5MPa and 2.5MPa.

[0024] The implementation of the present application has the following beneficial effects:

[0025] The hydrogen production and dissolution system is provided with a power component, an electrolysis component, a treatment component, a reaction component and a safety component, wherein the electrolysis component comprises a water tank, an electrolyzer and a pump, the pump passes water in the water tank into the electrolyzer, the electrolyzer electrolyzes the water, the treatment component comprises a gas-liquid separator, the gas-liquid separator is communicated with the electrolyzer, the reaction component comprises a booster and a reaction tank, the booster pressurizes the reaction tank, the reaction tank is provided with an ultrasonic generator, the ultrasonic generator can excite ultrasonic waves, hydrogen generated in the electrolyzer is passed into the gas-liquid separator for gas-liquid separation, pure hydrogen can directly pass through the booster into the reaction tank, the booster can pressurize the reaction tank to form a high-pressure container, under the ultrasonic wave vibration generated by the ultrasonic generator, hydrogen is quickly dissolved in water in the high-pressure container, therefore, in the application, the generated hydrogen can be directly dissolved in water, storage equipment and transportation equipment are saved, hydrogen leakage in the storage and transportation process is avoided, safety hazards can be reduced, and the safety component comprises a leakage sensor, the leakage sensor is arranged on the side of the reaction tank, the system can be continuously monitored, and the safety is higher. BRIEF DESCRIPTION OF DRAWINGS

[0026] Fig. 1 is a flow schematic diagram of the hydrogen production and dissolution system;

[0027] Fig. 2 is a structural schematic diagram of the electrolyzer;

[0028] Fig. 3 is an installation structural schematic diagram of the reaction tank;

[0029] Fig. 4 is a flow schematic diagram of the hydrogen production and dissolution method;

[0030] Fig. 5 is a flow schematic diagram of water temperature control and hydrogen treatment. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings. It is hereby declared that the up, down, left, right, front, back, inner and outer directions appearing or about to appear in the present application in the text are based on the drawings of the present application, and are not specific limitations on the present application.

[0032] Referring to Fig. 1, the embodiment of the present application discloses a hydrogen production and hydrogen dissolving system, comprising a power supply assembly 1, an electrolysis assembly 3, a processing assembly 4, a reaction assembly 5 and a safety assembly 2, the power supply assembly 1 is electrically connected with an external power supply to supply power to the electrolysis assembly 3, the processing assembly 4, the reaction assembly 5 and the safety assembly 2, the electrolysis assembly 3 comprises a water tank 31, an electrolyzer 32 and a pump 33, the water tank 31 is internally provided with water for electrolysis and can be replenished from an external water source, the water tank 31 is communicated with the pump 33, the pump 33 is communicated with the electrolyzer 32, the pump 33 can pump the water in the water tank 31 into the electrolyzer 32, the electrolyzer 32 is electrically connected with the power supply assembly 1, the electrolyzer 32 electrolyzes the pumped water to generate hydrogen and oxygen. The pump 33 is preferably a water pump.

[0033] The processing assembly 4 is used for processing the generated hydrogen to obtain hydrogen with higher purity and suitable for dissolving, the processing assembly 4 comprises a gas-liquid separator 41, the gas-liquid separator 41 is communicated with the electrolyzer 32, since the generated hydrogen is attached with a small amount of liquid, in order to purify the hydrogen, the generated hydrogen enters the gas-liquid separator 41, the liquid is condensed and discharged in the gas-liquid separator 41, and the remaining hydrogen passes into the reaction assembly 5, the reaction assembly 5 comprises a booster 51 and a reaction tank 52, one end of the booster 51 is communicated with the gas-liquid separator 41, the other end of the booster 51 is communicated with the reaction tank 52, the hydrogen discharged from the gas-liquid separator 41 enters the reaction tank 52 through the booster 51, the reaction tank 52 is internally provided with pure water, the booster 51 pressurizes the reaction tank 52 to form a high-pressure container, the reaction tank 52 is provided with an ultrasonic generator 521, the ultrasonic generator 521 can promote the dissolution and diffusion of hydrogen molecules by generating high-frequency vibration waves, thereby accelerating the hydrogen to dissolve in water to form hydrogen-rich water, in this process, the hydrogen generated by electrolysis does not need to be stored, and a conveying device does not need to be built between the storage container and the reaction container, and the hydrogen dissolving reaction can be directly performed on the hydrogen generated by electrolysis, so that the storage device and the conveying device can be saved. In addition, the safety assembly 2 comprises a leakage sensor 21, the leakage sensor 21 is arranged on the side of the reaction tank 52, the leakage sensor 21 can detect the surrounding area of the reaction tank 52, once the hydrogen leakage is detected, the system will be shut down to prevent accidents from happening, thereby further improving the safety.

[0034] The beneficial effects of the embodiment of the present application are as follows:

[0035] The hydrogen production and dissolution system of the embodiment of the present application is provided with a power supply assembly 1, an electrolysis assembly 3, a processing assembly 4, a reaction assembly 5 and a safety assembly 2, wherein the electrolysis assembly 3 comprises a water tank 31, an electrolyzer 32 and a pump 33, the pump 33 passes water in the water tank 31 into the electrolyzer 32, the electrolyzer 32 electrolyzes the water, the processing assembly 4 comprises a gas-liquid separator 41, the gas-liquid separator 41 communicates with the electrolyzer 32, the reaction assembly 5 comprises a booster 51 and a reaction tank 52, the booster 51 boosts the reaction tank 52, the reaction tank 52 is provided with an ultrasonic generator 521, the ultrasonic generator 521 can excite ultrasonic waves, the hydrogen gas generated in the electrolyzer 32 is passed into the gas-liquid separator 41 for gas-liquid separation, the pure hydrogen gas can directly pass through the booster 51 into the reaction tank 52, the booster 51 can boost the reaction tank 52 to form a high-pressure container, under the ultrasonic wave vibration generated by the ultrasonic generator 521, the hydrogen gas is quickly dissolved in water in the high-pressure container, therefore, in the present application, the produced hydrogen gas can be directly dissolved in water, saving storage equipment and transportation equipment, avoiding hydrogen leakage in the process of storage and re-transportation, reducing safety hazards, and the safety assembly 2 comprises a leakage sensor 21, the leakage sensor 21 is arranged on the side of the reaction tank 52, can continuously monitor the system, and is safer.

[0036] Specifically, the electrolysis assembly 3 further comprises a water chiller 34, the pump 33 is arranged below the water tank 31, the input end of the pump 33 communicates with the water tank 31, the output end of the pump 33 communicates with the water chiller 34, and the water chiller 34 communicates with the electrolyzer 32. The water in the water tank 31 enters the input end of the pump 33 through gravity and negative pressure, the pump 33 passes the water into the water chiller 34, the water chiller 34 controls the temperature of the water, and the water is passed into the electrolyzer 32 after reaching the set temperature, preventing the water temperature from being too high, avoiding affecting the electrolysis efficiency and damaging the electrolyzer 32.

[0037] Referring to Fig. 2, the electrolyzer 32 comprises a water inlet 321, a hydrogen outlet 322, an oxygen outlet 323, a negative electrode connection port 324 and a positive electrode connection port 325. The water inlet 321 is connected to an external water chiller. The hydrogen outlet 322 is connected to the gas-liquid separator 41. The oxygen outlet 323 is connected to the water tank 31. The negative electrode connection port 324 and the positive electrode connection port 325 are respectively connected to the electrodes of the power supply assembly 7. The hydrogen generated in the electrolyzer 32 enters the gas-liquid separator 41 through the hydrogen outlet 322 for treatment. The oxygen and excess water vapor generated are returned to the water tank 31 through the oxygen outlet 323. The oxygen is discharged in the water tank 31, and the excess water vapor can be recycled in the water tank 31. The oxygen and hydrogen are discharged separately, which can reduce the safety risk as much as possible.

[0038] In order to further process the hydrogen and improve the hydrogen dissolution efficiency, the processing assembly 4 further comprises a purifier 42 for further purifying the hydrogen. The gas-liquid separator 41 comprises a hydrogen outlet 411 connected to the inlet end of the purifier 42. The purifier 42 is connected to an external heat source to achieve preliminary filtration. The dried hydrogen enters the purifier 42. The external heat source heats the hydrogen in the purifier 42. By using the difference in diffusion rate, adsorption characteristics and other differences between hydrogen and other substances, the impurities such as water vapor, oxygen, carbon dioxide and chlorine in the hydrogen are removed to further purify the hydrogen. The purified hydrogen can improve the purity of hydrogen dissolution, thereby improving the efficiency of hydrogen dissolution.

[0039] In order to cool the purified hydrogen for subsequent hydrogen dissolution operation, the processing assembly 4 further comprises a cooling bin 43. One end of the cooling bin 43 is connected to the outlet end of the purifier 42. The other end of the cooling bin 43 is connected to the pressure booster 51. The cooling bin 43 is connected to an external cooling device. The purified hydrogen enters the cooling bin 43. The high-temperature purified hydrogen is cooled by the external cooling device. After cooling, the hydrogen is introduced into the pressure booster 51 and then into the reaction tank 52 for hydrogen dissolution.

[0040] The processing assembly 4 further comprises a precision filter 44 arranged between the gas-liquid separator 41 and the purifier 42 and between the purifier 42 and the cooling bin 43. Generally, hydrogen produced by electrolysis of water can contain some impurities or particles, which can affect the purity and stability of hydrogen and even cause damage to the equipment. The precision filter 44 can effectively retain the impurities and particles inside the filter by the microporous or filter medium designed by the filter, so that the hydrogen after the filter treatment is more pure, which can protect the purifier 42 and the cooling bin 43, and at the same time help to improve the purity of hydrogen.

[0041] The gas-liquid separator 41 is in communication with an external cooling device. The gas-liquid separator 41 further comprises a liquid outlet 412 in communication with the bottom of the water tank 31. The external cooling device can condense the liquid in the hydrogen and discharge it back to the water tank 31 from the liquid outlet 412.

[0042] The reaction tank 52 is inclined and arranged in multiple numbers. By the inclined arrangement, the overall height of the reaction tank 52 can be reduced, and the opening of the reaction tank 52 can be conveniently filled and operated. Moreover, by the inclined arrangement, the horizontal cross-sectional area of the reaction tank 52 at a certain height is greater than the diameter at the height, so the area for hydrogen and water reaction and dissolution is larger than that of the vertical arrangement, which can further improve the hydrogen dissolution efficiency. At the same time, since the ultrasonic generator 53 at the bottom can reduce the aggregation of the bottom bubbles, the bottom bubbles will float up. Since the wall surface of the reaction tank 52 is inclined, the bubbles will gradually approach the inclined side wall in the floating process, so as to force the bubbles to move to the wall surface of the reaction tank 52, prevent the bubbles from affecting the reaction in the middle, and thus improve the hydrogen dissolution efficiency.

[0043] Specifically, referring to FIG. 3, the angle a between the center line of the reaction tank 52 and the horizontal plane is in the range of 40°-50°. An electromagnetic valve 58 is arranged between the booster 51 and each reaction tank 52, and the electromagnetic valve 58 is used to control whether each reaction tank 52 performs hydrogen dissolution.

[0044] Referring to FIG. 4, the embodiment of the present application further discloses a hydrogen production and hydrogen dissolution method applied to the hydrogen production and hydrogen dissolution system as described above. The method comprises the following steps:

[0045] S01, real-time detection of the water level and water temperature of the water tank 31, when the water level of the water tank 31 rises to a water level preset value and the water temperature reaches a water temperature preset value, the pump 33 is started.

[0046] S02, starting electrolyzer 32 to electrolyze water, real-time detection of hydrogen flow, after hydrogen flow reaches hydrogen flow preset value, starting booster 51 to boost reaction tank 52;

[0047] S03, real-time detection of pressure in the reaction tank 52, when the pressure in the tank reaches the reaction pressure preset value, start the ultrasonic generator 521 to the reaction tank 52 for pressure holding and start timing, when the time reaches the reaction time preset value, close the ultrasonic generator 521 and the booster 51 and depressurize the reaction tank 52.

[0048] Before electrolysis, it is necessary to ensure the smooth circulation of water, to avoid dry burning phenomenon of the electrolyzer 32. Therefore, before the electrolyzer 32 starts, the pump 33 needs to be started, so that the water circulates between the water tank 31, the electrolyzer 32 and the gas-liquid separator 41. In order to improve the electrolysis efficiency, the water in the water tank 31 needs to be treated, specifically the water temperature needs to be controlled, the water temperature is controlled by the water chiller 34, when the water temperature reaches the water temperature preset value, and the water level of the water tank 31 rises to the water level preset value, the pump 33 can be started. The water temperature preset value and the water level preset value can be set in advance.

[0049] After starting the electrolyzer 32 to electrolyze water, it needs a period of time, the rate and flow of hydrogen production will gradually stabilize, in this process, hydrogen is continuously sent into the reaction tank 52, after a period of time when the hydrogen flow reaches the hydrogen flow preset value, the reaction tank 52 is filled with enough hydrogen, at this time, the booster 51 is started to boost the reaction tank 52, so that the reaction tank 52 forms a high-pressure container.

[0050] When the pressure in the reaction tank 52 reaches the reaction pressure preset value, the pressure holding state is started and timing is started, the ultrasonic generator 521 is started at this time, the ultrasonic generator 521 generates ultrasonic high-frequency vibration, hydrogen is dissolved in water under the action of high-pressure environment and high-frequency vibration. After a period of time, the cumulative time reaches the reaction time preset value, the hydrogen dissolving operation is completed, at this time, the ultrasonic generator 521 and the booster 51 are closed and the reaction tank 52 is depressurized, the hydrogen is discharged to ensure the safety of the system.

[0051] The above process does not need to store hydrogen, nor needs to build a conveying device between the storage container and the reaction container, and can directly dissolve hydrogen generated by electrolysis, so as to save storage equipment and transportation equipment, and reduce the safety hidden danger of hydrogen in the process of storage and retransportation.

[0052] Further, referring to FIG. 5, the following steps are further included:

[0053] S11, using the water chiller unit 34 to control the temperature of the water in the water tank 31, so that the water temperature reaches the water temperature preset value and remains within the water temperature preset range.

[0054] S21, after starting the electrolyzer 32 to produce hydrogen by electrolysis of water, the hydrogen first passes through the gas-liquid separator 41 for gas-liquid separation, and the liquid level in the gas-liquid separator 41 is detected in real time. When the liquid level reaches the preset value, the liquid in the gas-liquid separator 41 is introduced into the water tank 31.

[0055] S31, the hydrogen gas from the gas-liquid separator 41 first enters the purifier 42 for purification. In the purification process, an external heat source is used to heat the purifier 42, and after heating to the purification set temperature, the hydrogen gas is cooled in the cooling bin 43. After cooling to the cooling preset temperature, the hydrogen gas is introduced into the booster 51.

[0056] S11 is the process of treating the water in the water tank 31. The water temperature preset value is within the water temperature preset range. In the embodiment of the present application, the water temperature preset value can be selected within the range of 20-28℃. The water temperature preset range is 2℃ before and after the water temperature preset value. The water chiller unit 34 controls the water temperature within the range of 18-30℃ to improve the efficiency of electrolysis.

[0057] The gas-liquid separator 41 is connected with an external cooling device, which can cool the separation part of the gas-liquid separator 41, so that all the liquid in the mixed gas is condensed, and the condensed liquid returns to the water tank 31, thereby forming a cycle.

[0058] In order to further filter and purify the hydrogen gas, the hydrogen gas from the gas-liquid separator 41 first enters the purifier 42 for purification. The purifier 42 is filled with specific adsorbents, which have the ability to selectively adsorb impurities in hydrogen gas. When hydrogen gas containing impurities enters the purifier 42, under certain pressure, the adsorbent will adsorb the impurity molecules in the hydrogen gas, such as water, oxygen and other gas components, while the hydrogen molecules will pass through the adsorption layer due to their small molecular size and weak interaction with the adsorbent, thereby realizing the purification of hydrogen. Heating the purifier 42 can improve the efficiency of adsorbing impurities, thereby improving the efficiency of purification. In this process, the hydrogen gas is heated. In order to control the temperature of the hydrogen gas within a preferable range before dissolution, the cooling bin 43 can cool the hydrogen gas to the cooling preset temperature, and then introduce the hydrogen gas into the reaction tank 52 for reaction.

[0059] Further comprising the following steps:

[0060] The booster 51 is communicated with a plurality of reaction tanks 52, and the plurality of reaction tanks 52 are sequentially subjected to pressure boosting, pressure maintaining and pressure releasing. Specifically, when the previous reaction tank 52 sequentially completes pressure boosting, pressure maintaining and pressure releasing, the next reaction tank 52 sequentially starts pressure boosting, pressure maintaining and pressure releasing; before the current reaction tank 52 completes pressure boosting, pressure maintaining and pressure releasing, the electromagnetic valves 53 corresponding to other reaction tanks 52 are closed; after the current reaction tank 52 completes pressure boosting, pressure maintaining and pressure releasing, the electromagnetic valve 53 corresponding to the reaction tank 52 is closed, and the electromagnetic valve 53 corresponding to the next reaction tank 52 is opened.

[0061] The sequential pressure boosting of the plurality of reaction tanks 52 can ensure the safety of the operation process. Since the materials, structures and sealing properties of each reaction tank 52 can be different, and the pressure inside the reaction tank 52 can rapidly increase due to pressure boosting, if all the reaction tanks 52 are simultaneously subjected to pressure boosting, once an abnormal situation occurs, such as leakage or rupture of a certain reaction tank 52, a chain reaction can be triggered, increasing the risk of accidents. Sequential pressure boosting can timely discover and handle potential safety hazards, and ensure the safe and stable operation of each reaction tank 52. In addition, sequential pressure boosting is beneficial to the accurate control of the hydrogen dissolution process in each reaction tank 52. The volumes, shapes and internal hydrogen and water mixing conditions of different reaction tanks 52 can be different, which can affect the hydrogen dissolution efficiency. Through sequential pressure boosting, the pressure boosting rate and pressure level can be adjusted according to the actual situation of each reaction tank 52, and the reaction pressure preset value and reaction time preset value of each reaction tank 52 can be individually set, so that hydrogen can be fully dissolved in each reaction tank 52, thereby improving the hydrogen dissolution efficiency and hydrogen utilization rate. In the embodiment of the present application, the reaction pressure preset value is between 1.5 MPa and 2.5 MPa, and the reaction pressure preset value of each reaction tank 52 can be set according to different dissolution requirements.

[0062] Before the current reaction tank 52 completes pressure boosting, pressure maintaining and pressure releasing, the electromagnetic valves 53 corresponding to other reaction tanks 52 are closed, so as to avoid hydrogen entering other reaction tanks 52; after the current reaction tank 52 completes pressure boosting, pressure maintaining and pressure releasing, the electromagnetic valve 53 corresponding to the reaction tank 52 is closed, and the electromagnetic valve 53 corresponding to the next reaction tank 52 is opened, so as to prevent the pressure releasing operation of the previous reaction tank 52 from affecting the next reaction tank 52. Therefore, the pressure releasing operation of the previous reaction tank 52 and the pressure boosting operation of the next reaction tank 52 can be simultaneously performed, thereby improving the overall operation efficiency.

[0063] The above is the preferred embodiment of the present application, it should be pointed out that, for those skilled in the art, without departing from the principles of the present application, can also make several improvements and refinements, these improvements and refinements are also considered to be within the scope of the present application.

Claims

1. A hydrogen production and storage system, comprising: The application relates to a hydrogen-oxygen electrolysis device, which comprises a power supply assembly, an electrolysis assembly, a processing assembly, a reaction assembly and a safety assembly; the power supply assembly is electrically connected with an external power supply; the electrolysis assembly comprises a water tank, an electrolyzer and a pump; the water tank is communicated with the pump; the pump is communicated with the electrolyzer; the electrolyzer is electrically connected with the power supply assembly. The processing assembly comprises a gas-liquid separator which is communicated with the electrolyzer; the reaction assembly comprises a booster and a reaction tank; one end of the booster is communicated with the gas-liquid separator; the other end of the booster is communicated with the reaction tank; the booster pressurizes the reaction tank; the reaction tank is provided with an ultrasonic generator; the safety assembly comprises a leakage sensor which is arranged on the side of the reaction tank.

2. The hydrogen generation and storage system of claim 1, wherein, The electrolysis assembly further comprises a water chiller unit; the pump is arranged below the water tank; the input end of the pump is communicated with the water tank; the output end of the pump is communicated with the inlet of the water chiller unit; the outlet of the water chiller unit is communicated with the electrolyzer.

3. The hydrogen generation and storage system of claim 1, wherein, The electrolyzer comprises a water inlet, a hydrogen outlet, an oxygen outlet, a negative electrode connecting port and a positive electrode connecting port; the water inlet is communicated with an external water chiller unit; the hydrogen outlet is communicated with the gas-liquid separator; the oxygen outlet is communicated with the water tank; the negative electrode connecting port and the positive electrode connecting port are respectively connected with electrodes of the power supply assembly.

4. The hydrogen generation and storage system of claim 1, wherein, The processing assembly further comprises a purifier, a cooling bin and a precision filter; the gas-liquid separator comprises a hydrogen outlet which is communicated with the inlet end of the purifier; the purifier is communicated with an external heat source; one end of the cooling bin is communicated with the outlet end of the purifier; the other end of the cooling bin is communicated with the booster; the cooling bin is communicated with an external cooling device; the precision filter is arranged between the gas-liquid separator and the purifier and between the purifier and the cooling bin.

5. The hydrogen generation and storage system of claim 1, wherein, The gas-liquid separator is communicated with an external cooling device; the gas-liquid separator further comprises a liquid outlet which is communicated with the bottom of the water tank.

6. The hydrogen generation and storage system of claim 1, wherein, The reaction tank is in a plurality of and is arranged in an inclined mode; the included angle between the center line of the reaction tank and a horizontal plane ranges from 40 DEG to 50 DEG; an electromagnetic valve is arranged between the booster and each reaction tank.

7. A method for producing and dissolving hydrogen, applied to the hydrogen production and dissolution system according to any one of claims 1 to 6, characterized in that, The application further comprises the following steps: a) detecting the water level and the water temperature of the water tank in real time; when the water level of the water tank rises to a preset water level value and the water temperature reaches a preset water temperature value, the pump is started; b) starting the electrolyzer to electrolyze water; detecting the hydrogen flow in real time; when the hydrogen flow reaches a preset hydrogen flow value, the booster is started to pressurize the reaction tank; c) detecting the pressure in the reaction tank in real time; when the pressure in the tank reaches a preset reaction pressure value, the ultrasonic generator is started to keep the pressure of the reaction tank and start timing; when the time reaches a preset reaction time value, the ultrasonic generator and the booster are turned off and the reaction tank is depressurized.

8. The hydrogen generation and storage system of claim 1, wherein, The application further comprises the following steps: controlling the temperature of the water in the water tank by using the water chiller unit so that the water temperature reaches a preset water temperature value and is kept in a preset water temperature range. After the electrolyzer generates hydrogen by electrolysis of water, the hydrogen is first separated by a gas-liquid separator, the liquid level in the gas-liquid separator is detected in real time, and when the liquid level reaches a preset value, the liquid in the gas-liquid separator is introduced into the water tank; The hydrogen gas from the gas-liquid separator is first introduced into the purifier for purification, in the purification process, an external heat source is used to heat the purifier, and after heating to a predetermined temperature, the hydrogen gas is introduced into the cooling bin, and an external cooling device cools the hydrogen gas through the cooling bin, and when the hydrogen gas temperature reaches a predetermined cooling temperature, the hydrogen gas is introduced into the reaction tank.

9. The hydrogen generation and storage system of claim 1, wherein, Further comprising the following steps: The booster is in communication with a plurality of reaction tanks, and the plurality of reaction tanks are alternately pressurized, pressure maintained, and depressurized: When the previous reaction tank completes pressurization, pressure maintenance, and depressurization in turn, the next reaction tank starts pressurization, pressure maintenance, and depressurization in turn; Before the current reaction tank completes pressurization, pressure maintenance, and depressurization, the electromagnetic valves corresponding to other reaction tanks are closed; after the current reaction tank completes pressurization, pressure maintenance, and depressurization, the electromagnetic valve corresponding to the reaction tank is closed, and the electromagnetic valve corresponding to the next reaction tank is opened.

10. The hydrogen generation and storage system of claim 9, wherein, The water temperature preset value is between 20℃ and 28℃, the reaction pressure preset value and the reaction time preset value of each reaction tank can be individually set, and the reaction pressure preset value is between 1.5MPa and 2.5MPa.

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