System and method for generating nanobubble hydrogen liquid

Abstract

The present application relates to a kind of system and method for generating nano hydrogen bubble liquid, belong to the technical field of gas bubble size less than 1 micrometer obtained by introducing gas into liquid medium in the dissolving method or device of mixing gas and liquid.The system and method are particularly provided with explosion reaction cavity in closed liquid storage tank, hydrogen and oxygen are mixed according to appropriate proportion and concentration and then passed into explosion reaction cavity, explosion is formed in explosion reaction cavity by electric spark needle, shock wave and high temperature and high pressure are generated after explosion, hydrogen is mixed with water and collision is generated on conical impactor, and finally nano hydrogen bubble liquid is formed.

Description

Technical Field

[0001] This invention relates to a system and method for generating hydrogen nanobubble water by utilizing the hydrogen-oxygen explosion reaction and the combination of hydrogen with water. It belongs to the technical field of introducing gas into a liquid medium to obtain bubbles with a size of less than 1 micrometer in the dissolution method or device of mixing gas and liquid (B01F23 / 2375). Background Technology

[0002] Traditional methods for generating nano-hydrogen bubble water mainly rely on mechanical force or energy input, using techniques such as high-pressure dissolution, mechanical shearing, or ultrasonic cavitation to generate nano-hydrogen bubbles in water, thus forming nano-hydrogen bubble water. However, for specific applications, such as hydrogen energy storage and conversion, there is still a lack of an efficient nano-hydrogen bubble water generation technology. Summary of the Invention

[0003] The technical problem to be solved by this invention is: how to efficiently obtain nano-hydrogen bubble liquid.

[0004] The technical solution proposed by this invention to solve the above-mentioned technical problems is as follows: A system for generating nano-hydrogen bubble liquid, comprising a pressure-resistant storage tank, a gas source control unit, and a control module. The gas source control unit includes a hydrogen source, an oxygen source, a hydrogen regulating valve, an oxygen regulating valve, a hydrogen concentration tester, and a check valve. The pressure-resistant storage tank is equipped with an explosion reaction chamber and a conical impactor. The liquid in the pressure-resistant storage tank covers the top of the explosion reaction chamber but does not fill the entire volume of the pressure-resistant storage tank. The explosion reaction chamber is fixed by a bracket fixed to the top wall of the pressure-resistant storage tank and is located in the middle of the pressure-resistant storage tank. The bottom of the explosion reaction chamber is open, while the other facing sides are closed. The conical impactor is fixed to the bottom of the pressure-resistant storage tank and is located directly below the explosion reaction chamber. The conical impact surface of the conical impactor faces the bottom of the explosion reaction chamber. The hydrogen source outlet is equipped with a hydrogen one-way switch valve, and the oxygen source outlet is equipped with an oxygen one-way switch valve. The hydrogen one-way switch valve is connected to the hydrogen regulating valve through a hydrogen pipeline, and the oxygen one-way switch valve is connected to the oxygen regulating valve through an oxygen pipeline. A hydrogen flow meter is installed on the hydrogen pipeline, and an oxygen flow meter is installed on the oxygen pipeline. The outlets of the hydrogen and oxygen sources are respectively connected to the inlet of a hydrogen concentration tester through hydrogen and oxygen pipelines. The outlet of the hydrogen concentration tester is connected to the inlet of a check valve. The outlet of the check valve is connected to the interface at the top of the explosion reaction chamber through a sealed gas mixing pipeline that passes through the pressure-resistant liquid storage tank. An electric spark needle is installed in the explosion reaction chamber. The control module is connected to the electric spark needle through a wire that passes through the pressure-resistant liquid storage tank. An electronic flow meter and an electronic switch valve are installed on the gas mixing pipeline, and the electronic flow meter and electronic switch valve are electrically connected to the control module.

[0005] Furthermore, before using the system, the hydrogen regulating valve and the oxygen regulating valve are continuously adjusted so that the hydrogen concentration in the hydrogen-oxygen mixture measured by the hydrogen concentration tester reaches 66.7-75%, while the molar volume ratio of hydrogen to oxygen is greater than 2.

[0006] Furthermore, when the system is in use, the hydrogen regulating valve and the oxygen regulating valve are opened, and the hydrogen-oxygen mixture is discharged into the explosion reaction chamber from the interface at the top of the explosion reaction chamber, forcing the liquid in the explosion reaction chamber to be discharged through the bottom opening of the explosion reaction chamber. The hydrogen-oxygen mixture fills and is sealed in the explosion reaction chamber. The control module controls the electric spark needle in the explosion reaction chamber to ignite and form an explosion in the explosion reaction chamber.

[0007] Furthermore, the interface at the top of the explosion reaction chamber is equipped with a one-way valve, and the inlet of the one-way valve is connected to the gas mixing pipeline.

[0008] Furthermore, the side wall of the pressure-resistant liquid storage tank is provided with a jacketed cavity and a circulation inlet and a circulation outlet communicating with the jacketed cavity. Cooling liquid is provided in the jacketed cavity, and the circulation inlet and circulation outlet are respectively connected to the outlet and inlet of the circulation pump through circulation pipelines.

[0009] The second technical solution proposed by this invention to solve the above-mentioned technical problem is: a method for generating nano-hydrogen bubble liquid using a system for generating nano-hydrogen bubble liquid according to technical solution one, comprising the following steps: 1) Add water Open the valve and add water to the pressure-resistant storage tank through the filling pipe. Stop adding water when the level gauge shows the specified level. 2) Hydrogen-oxygen mixing debugging Open the hydrogen one-way valve and the hydrogen regulating valve, and simultaneously open the oxygen one-way valve and the oxygen regulating valve. Continuously adjust the hydrogen regulating valve and the oxygen regulating valve, while observing the hydrogen concentration value of the hydrogen concentration tester and the flow rate values ​​of the hydrogen flow meter and the oxygen flow meter, until the ratio of hydrogen outflow rate to oxygen outflow rate is greater than 2 and the hydrogen concentration in the hydrogen-oxygen mixture reaches 66.7-75%. 3) Introduce a hydrogen-oxygen mixture into the explosion reaction chamber. The control module controls the opening of the electronic switch valve, allowing the hydrogen-oxygen mixture to be introduced into the explosion reaction chamber through the mixing pipe. The flow rate of the hydrogen-oxygen mixture is controlled according to the signal fed back to the control module by the electronic flow meter. The hydrogen-oxygen mixture introduced into the explosion reaction chamber first uses pressure to discharge the water in the explosion reaction chamber to the bottom opening of the explosion reaction chamber, so that a closed cavity is formed in the explosion reaction chamber. The hydrogen-oxygen mixture is filled and sealed in the explosion reaction chamber 14. 4) Explosion The control module controls the spark needle inside the explosion reaction chamber to ignite and cause an explosion inside the explosion reaction chamber.

[0010] Furthermore, the explosion in step 4) can be repeated multiple times.

[0011] The principle and beneficial effects of this invention are as follows: A hydrogen-oxygen mixture, under gas source pressure, is discharged into the explosion reaction chamber within a sealed liquid storage tank at an appropriate ratio (2:1) and concentration requirement (hydrogen concentration 66.7-75%). First, the liquid within the explosion reaction chamber is forced out from the bottom, allowing the chamber to be filled with the hydrogen-oxygen mixture. Since the hydrogen concentration in the mixture is within the explosive limit range, an explosion can occur within the chamber when the spark needle inside is ignited. After the explosion: First, in the initial stage of the explosion (microsecond timescale), a large amount of energy is released in an extremely short time, forming high-temperature, high-pressure bubbles (because there is more hydrogen than oxygen, the excess hydrogen forms hydrogen bubbles in the liquid after the explosion), with temperatures instantly reaching 1000°C. Subsequently, during the expansion of the hydrogen bubbles, due to the Rayleigh-Taylor instability, the gas-liquid interface becomes unstable under the combined influence of inertial force and surface tension, causing the original large bubble to split into clusters of small bubbles ranging in size from micrometers to nanometers. Simultaneously, the shock wave from the explosion rapidly propagates onto the conical impactor, causing collisions that instantly shatter the gas and water, forming a mixture of micro- and nano-sized hydrogen bubbles. The shock wave also induces intense turbulence, and the shear forces generated by this turbulence further tear the bubbles apart, ultimately forming nanoscale hydrogen bubbles. The high-pressure environment generated at the moment of the explosion significantly increases the solubility of hydrogen in water, a process that follows Henry's Law. When the pressure drops sharply to normal after the explosion, hydrogen begins to precipitate due to its supersaturated state. However, due to limited diffusion, this supersaturated hydrogen cannot escape quickly and ultimately exists in the water as stable nano-sized hydrogen bubbles. The dynamic characteristics of the entire process allow a large number of hydrogen-containing nano-sized hydrogen bubbles to form and be maintained in the water after the explosion.

[0012] In summary, this invention provides an innovative system and method for generating nano-hydrogen bubble liquid. This system and method enable the efficient preparation of nano-hydrogen bubble liquid, providing strong technical support for its widespread application. Furthermore, this method can also incorporate other gases without affecting any gases under explosive conditions, generating nano-bubble liquids with added gases. Attached Figure Description

[0013] The system and method for generating nano-hydrogen bubble liquid according to the present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the structure of a system for generating nano-hydrogen bubble liquid according to an embodiment; Figure 2 yes Figure 1 A schematic diagram of the structure of the gas source section separated from the gas; Figure 3 The particle size distribution curve of the nano-hydrogen bubble water generated in Example 1 was analyzed by a particle tracer. Figure 4 This is the particle size distribution curve of the nano-hydrogen bubble water generated in Example 2, analyzed by a particle tracer. Figure 5 The particle size distribution curve of the nano-hydrogen bubble water generated in Example 3 was analyzed by a particle tracer. Figure 6 The particle size distribution curve of the nano-hydrogen bubble water generated in Example 4 was analyzed by a particle tracer. Detailed Implementation Example 1

[0015] This embodiment provides a system for generating nano-hydrogen bubble liquid, such as... Figure 1 As shown, it includes a pressure-resistant liquid storage tank 22, a gas source control unit 1, and a control module 21. Figure 2 As shown, the gas source control unit 1 includes a hydrogen source 23, an oxygen source 24, a hydrogen regulating valve 26, an oxygen regulating valve 27, a hydrogen concentration meter 28, and a check valve 29. The outlet of the hydrogen source 23 is equipped with a hydrogen one-way valve 25, and the outlet of the oxygen source 24 is equipped with an oxygen one-way valve 30. The hydrogen one-way valve 25 and the hydrogen regulating valve 26 are connected via a hydrogen pipeline 4-1, and the oxygen one-way valve 30 and the oxygen regulating valve 27 are connected via an oxygen pipeline 4-2. A hydrogen flow meter 9-1 is installed on the hydrogen pipeline 4-1, and an oxygen flow meter 9-2 is installed on the oxygen pipeline 4-2. The outlets of the hydrogen source 23 and the oxygen source 24 are connected to the inlet of the hydrogen concentration meter 28 via hydrogen flow meters 9-1 and 9-2, hydrogen pipeline 4-1 and oxygen pipeline 4-2, hydrogen regulating valve 26, and oxygen regulating valve 27, respectively. The outlet of the hydrogen concentration meter 28 is connected to the inlet of the check valve 29. The hydrogen regulating valve 26, oxygen regulating valve 27, hydrogen concentration tester 28, and check valve 29 all require explosion-proof certification. In this embodiment, both the hydrogen source 23 and the oxygen source 24 are stored in high-pressure gas cylinders.

[0016] like Figure 1As shown, the pressure-resistant liquid storage tank 22 is equipped with an explosion reaction chamber 14 and a conical impactor 17. The liquid in the pressure-resistant liquid storage tank 22 covers the top of the explosion reaction chamber 14 but does not fill the entire volume of the pressure-resistant liquid storage tank 22 (i.e., a small amount of empty space is left in the pressure-resistant liquid storage tank 22). The explosion reaction chamber 14 is fixed by a fixing bracket 10 fixed to the top wall of the pressure-resistant liquid storage tank 22 and is located in the middle of the pressure-resistant liquid storage tank 22. The bottom of the explosion reaction chamber 14 is open on the downward side while the other sides are closed. The conical impactor 17 is fixed to the bottom of the pressure-resistant liquid storage tank 22 and is located directly below the explosion reaction chamber 14. The conical impact surface of the conical impactor 17 faces the downward opening of the explosion reaction chamber 14. The outlet of the check valve 28 is connected to the interface at the top of the explosion reaction chamber 14 through the gas mixing pipeline 40 that is sealed and inserted into the pressure-resistant liquid storage tank 22. The explosion reaction chamber 14 is equipped with an electric spark needle 20. The control module 21 is connected to the electric spark needle 20 through the wire inserted into the pressure-resistant liquid storage tank 22.

[0017] In this embodiment, the explosion reaction chamber 14 is cylindrical. An exhaust valve 8 is located at the top of the pressure-resistant liquid storage tank 22, which is also equipped with a liquid filling pipe 11 that extends from the top of the tank into its interior. A one-way valve 12 is located at the interface at the top of the explosion reaction chamber 14, with its inlet connected to a gas mixing pipeline 40. An electronic flow meter 2 and an electronic switching valve 3 are mounted on the gas mixing pipeline 40, and these two devices are electrically connected to the control module 21.

[0018] In this embodiment, a level gauge 6 is provided on the inner wall of the pressure-resistant liquid storage tank 22. The side wall of the pressure-resistant liquid storage tank 22 forms a jacketed cavity 5 and a circulation inlet 16 and a circulation outlet 7 connecting the jacketed cavity 5. Cooling liquid is provided in the jacketed cavity 5. The circulation inlet 16 and the circulation outlet 7 are connected to the outlet and inlet of the circulation pump respectively through circulation pipelines (not shown in the figure). The spark plug uses model CMR6H, manufactured by Japan Special Ceramics Co., Ltd., with a waterproof rating of IP68 (for long-term underwater use) and a pressure resistance of 100MPa (iridium center electrode + platinum ground electrode).

[0019] The specific process of generating nano-hydrogen bubble water using the system for generating nano-hydrogen bubble liquid in this embodiment is as follows: 1. Add water Open valve 8 and add water 15 to pressure-resistant storage tank 22 through liquid addition pipe 11. Stop adding water when level gauge 6 displays the specified level.

[0020] 2. Hydrogen-oxygen mixing adjustment Open the hydrogen one-way valve 25 and the hydrogen regulating valve 26, and simultaneously open the oxygen one-way valve 30 and the oxygen regulating valve 27. Continuously adjust the hydrogen regulating valve 26 and the oxygen regulating valve 27, while observing the hydrogen concentration value of the hydrogen concentration tester 28 and the flow values ​​of the hydrogen flow meter 9-1 and the oxygen flow meter 9-2, until the ratio of hydrogen outflow to oxygen outflow is greater than 2 and the hydrogen concentration in the hydrogen-oxygen mixture reaches 66.7-75%.

[0021] 3. Introduce a hydrogen-oxygen mixture into the explosion reaction chamber. The control module 21 controls the opening of the electronic switch valve 3, allowing the hydrogen-oxygen mixture to be introduced into the explosion reaction chamber 14 through the mixing pipe 40. Based on the signal fed back to the control module 21 by the electronic flow meter 2, the flow rate of the hydrogen-oxygen mixture is controlled. The hydrogen-oxygen mixture introduced into the explosion reaction chamber 14 first uses pressure to discharge the water in the explosion reaction chamber 14 to the bottom opening of the explosion reaction chamber 14, so that a closed cavity is formed inside the explosion reaction chamber 14. The hydrogen-oxygen mixture is then filled in and sealed inside the explosion reaction chamber 14 at this time. 4. Explosion The control module 21 controls the spark needle 20 inside the explosion reaction chamber 14 to ignite and cause an explosion within the chamber. At the moment of explosion, the one-way valve 12 prevents the explosion energy from returning to the mixing pipeline 40. Hydrogen and oxygen in the explosion reaction chamber 14 react instantly (2H₂ + O₂ = H₂O) to generate water, releasing a large amount of heat energy. The remaining unreacted hydrogen and the resulting water vapor expand rapidly. During the expansion of the hydrogen bubbles, the gas-liquid interface becomes unstable under the combined influence of inertial force and surface tension, causing the original large bubbles to split into clusters of small bubbles ranging in size from micrometers to nanometers. The high pressure generated by the explosion mixes the gas and water and is rapidly conducted to the conical impactor 17, where they collide to form micro / nano bubble water. After the explosion, the hydrogen and oxygen gas in the explosion reaction chamber 14 react to form water, creating a negative pressure within the chamber. Under this negative pressure, the water re-enters the chamber, resulting in an exchange and mixing of water inside and outside the chamber, thus forming micro / nano bubble water throughout the entire pressure-resistant storage tank 22.

[0022] Explosions can be repeatedly generated within the explosion reaction chamber 14. In this embodiment, 20 explosions were repeatedly conducted, gradually forming abundant nano-sized bubble water within the pressure-resistant storage tank 22. Gases escaping from the bubble water within the pressure-resistant storage tank 22 can be discharged through the exhaust valve 8.

[0023] In this embodiment, circulating cold water is introduced into the interlayer cavity 5 on the side wall of the pressure-resistant liquid storage tank 22 to absorb and utilize the heat energy generated by the explosion.

[0024] The underwater explosion theoretical calculation of the explosion reaction chamber 14 in this embodiment is as follows.

[0025] In this embodiment, the pressure-resistant storage tank 22 holds 1 ton of water. The explosion reaction chamber 14 is made of low-carbon steel, with a volume of 5L, an internal radius of 10cm, and an internal height of 15.9cm. The lower end of the explosion reaction chamber 14 is located 0.5m below the water surface. The hydrogen and oxygen concentrations are set as follows: 75% hydrogen and 25% oxygen. The single-pass flow rate of the hydrogen-oxygen mixture is 4L. The thickness and material of the mixed gas pipeline and the water tank wall are the same as those of the explosion reaction chamber 14. The steel used is low-carbon steel (yield strength ≈ 250 MPa), with a safety factor of 6 (referencing static conservative design), and an allowable stress of approximately 42 MPa.

[0026] The single-pass flow rate of the hydrogen-oxygen mixture is 4L. Because the designed hydrogen-oxygen ratio is greater than 2:1, there will be residual hydrogen after the explosion. Therefore, the explosive equivalent of the hydrogen-oxygen explosion is less than the theoretical explosive equivalent of 8.1 grams of TNT for a complete hydrogen-oxygen reaction. The theoretical explosive equivalent of 8.1 grams of TNT is calculated based on a 2:1 hydrogen-oxygen gas ratio and a complete reaction, with each mole of H2 releasing 285.8 kJ of energy.

[0027] The theoretical explosive equivalent of 8.1 grams of TNT at standard energy states (STP, 0°C, 1 atm) for 4 liters of H2 / O2 (2:1) gas mixture is calculated as follows: 1 mol of gas has a volume ≈ 22.4 L. The molar amount of hydrogen in 4 L of mixed gas is approximately (4 / 22.4) × 2 / 3 ≈ 0.119 mol, and the energy produced is approximately 0.119 mol H2 × 285.8 kJ / mol ≈ 34.0 kJ. 1 gram of TNT ≈ 4.184 kJ, The energy of 4 liters of H2 / O2 (2:1) mixture is approximately 34.0 kJ / 4.184 kJ, which is equivalent to 8.1 grams of TNT.

[0028] The theoretical explosive yield of a 4L hydrogen-oxygen mixture in a complete reaction is 8.1 grams of TNT. However, in the actual designed explosion process, excess hydrogen causes incomplete combustion, resulting in an explosive yield less than the theoretical yield of a complete explosion. The wall thickness t of the explosion reaction chamber 14, calculated based on the theoretical explosive yield, is as follows: Formula for calculating the pressure of a shock wave from an explosion in water: P = K(W1 / 3 / r) × α, P: Design pressure of underwater explosion shock wave (MPa). W: Explosion equivalent (usually expressed as TNT equivalent, 1kgTNT≈4.184*106J). r: Distance from the explosion center (m) K,α: empirical constants (for TNT, K≈52.4×10⁶, α≈1.13); The explosive yield is 0.0081 kg TNT, and the radius of the explosion is 0.5 m (the explosion reaction chamber is 14 meters underwater). P=52.4×106(0.0081 1 / 3 / 0.5)×1.13≈18.92*106pa=18.92Mpa; According to the formula for the wall thickness of a cylindrical pressure shell: t = P × Di / (2σ × Φ - P) + C, Di: inner diameter (diameter) mm, σ: Allowable stress of the material (MPa, refer to standard) Φ: Weld coefficient (0.6~1.0, 1.0 for no weld), C: Corrosion allowance (mm), the corrosion allowance for low carbon steel is 1mm based on a 10-year design (0.1mm for one-year corrosion allowance in water). Therefore, t = 18.92 * (100 * 2) / (2 * 42 * 1 - 18.92) + 1 ≈ 59.2 mm = 5.92 cm.

[0029] Therefore, the explosion reaction chamber 14 in this embodiment is made of low carbon steel with a thickness of 59.2 mm (5.92 cm) (excluding the interlayer cavity 5, at least the thickness of the single inner wall of the explosion reaction chamber 14). Example 2

[0030] The system in this embodiment is basically the same as that in embodiment 1, except that: 1) the pressure-resistant storage tank 22 in this embodiment has a water volume of 3 tons; 2) the explosion reaction chamber is made of high-strength steel Q345R, with a volume of 10L, an internal radius of 15cm, an internal height of 14.15cm, and the lower end of the explosion reaction chamber 14 is located 1m below the water surface; 3) the hydrogen and oxygen concentrations are set as follows: hydrogen 68%, oxygen 32%, and the single hydrogen and oxygen injection volume is 8L; 4) in this embodiment, 35 explosions were repeatedly carried out in the explosion reaction chamber 14.

[0031] The underwater explosion design theoretical calculation of the explosion reaction chamber 14 in this embodiment is the same as that in Embodiment 1, and the calculation process will not be repeated.

[0032] The corrosion allowance for high-strength steel Q345R is designed to be 1 mm over 10 years (0.1 mm for one year in water). The high-strength steel Q345R has a yield strength ≈ 345 MPa, a safety factor of 4 (referencing industrial explosion-proof application requirements), and an allowable stress of 86 MPa. A single hydrogen-oxygen injection of 8 L produces an explosive kinetic energy equivalent less than the theoretical explosive equivalent of 16.2 grams of TNT.

[0033] In this embodiment, the wall thickness of the explosion reaction chamber 14 is approximately 22.4 mm = 2.24 cm. Therefore, in this embodiment, the explosion reaction chamber 14 is made of high-strength steel Q345R with a thickness of 22.4 mm (2.24 cm) (excluding the interlayer cavity 5, at least the thickness of the single-layer inner wall of the explosion reaction chamber 14).

[0034] The method in this embodiment is the same as that in Embodiment 1, and will not be described again. Example 3

[0035] The system in this embodiment is basically the same as that in embodiment 1, except that: 1) the pressure-resistant storage tank 22 in this embodiment has a water volume of 8 tons; 2) the explosion reaction chamber is made of titanium alloy (Ti-6Al-4V), with a volume of 15L, an internal radius of 20cm, an internal height of 11.94cm, and the lower end of the explosion reaction chamber 14 is located 1m below the water surface; 3) the hydrogen and oxygen concentrations are set as follows: hydrogen 71%, oxygen 29%, and the single hydrogen and oxygen injection volume is 12L; 4) in this embodiment, 40 explosions were repeatedly performed in the explosion reaction chamber 14.

[0036] The underwater explosion design theoretical calculation of the explosion reaction chamber 14 in this embodiment is the same as that in Embodiment 1, and the calculation process will not be repeated.

[0037] Titanium alloy (Ti-6Al-4V) (yield strength ≈ 830 MPa, belonging to high-strength materials), with a safety factor of 5 (referencing industrial explosion-proof application requirements), and an allowable stress of 166 MPa. The corrosion allowance for titanium alloy (Ti-6Al-4V) is 1 mm for a 10-year design period (0.1 mm for a one-year corrosion allowance in water). A single hydrogen-oxygen injection of 12L produces an explosive kinetic energy equivalent less than the theoretical explosive equivalent of 24.3 grams of TNT.

[0038] In this embodiment, the wall thickness of the explosion reaction chamber 14 is approximately 8.20 mm. Therefore, the explosion reaction chamber 14 is made of titanium alloy (Ti-6Al-4V) with a thickness of 8.20 mm (excluding the interlayer cavity 5, at least the thickness of the single inner wall of the explosion reaction chamber 14).

[0039] The method in this embodiment is the same as that in Embodiment 1, and will not be described again. Example 4

[0040] The system in this embodiment is basically the same as that in embodiment 1, except that: 1) the pressure-resistant storage tank 22 in this embodiment has a water volume of 10 tons; 2) the explosion reaction chamber is made of maraging steel (18Ni-300), with a volume of 25L, an internal radius of 25cm, an internal height of 12.74cm, and the lower end of the explosion reaction chamber 14 is located 3m below the water surface; 3) the hydrogen and oxygen concentrations are set as follows: hydrogen 73%, oxygen 27%, and the single hydrogen and oxygen injection volume is 20L; 4) in this embodiment, 50 explosions were repeatedly performed in the explosion reaction chamber 14.

[0041] The underwater explosion design theoretical calculation of the explosion reaction chamber 14 in this embodiment is the same as that in Embodiment 1, and the calculation process will not be repeated.

[0042] The corrosion allowance for maraging steel (18Ni-300) is 1 mm for 10 years (0.1 mm for one year of corrosion allowance in water). The maraging steel (18Ni-300) has a yield strength of ≈2000 MPa and is a high-strength composite material. The safety factor is 5 (refer to the requirements for industrial explosion-proof applications). The allowable stress is 400 MPa.

[0043] A single injection of 20L of hydrogen and oxygen produces an explosive kinetic energy equivalent to less than the theoretical explosive equivalent of 40.5 grams of TNT.

[0044] In this embodiment, the wall thickness of the explosion reaction chamber 14 is approximately 3.65 mm. Therefore, in this embodiment, the explosion reaction chamber 14 is made of 3.65mm thick (excluding the interlayer cavity 5, at least the thickness of the single-layer inner wall of the explosion reaction chamber 14) martensitic aging steel (18Ni-300).

[0045] The method in this embodiment is the same as that in Embodiment 1, and will not be described again.

[0046] The particle size distribution curves of the water samples prepared in the above four embodiments, analyzed by a particle tracer (Malvin Panaco Ltd., model Nanosight Pro), are shown below. Figure 3-6 As shown, according to Figure 3-6 The spectral data obtained are shown in Table 1 below.

[0047] Table 1 Average particle size (nm) 121.4 128.0 121.3 124.9 Number of hydrogen bubbles (bubbles / ml of water) <![CDATA[7.99*10 7 ]]> <![CDATA[1.54*10 8 ]]> <![CDATA[3.70*10 8 ]]> <![CDATA[3.76*10 8 ]]> As can be seen from Table 1, the number of bubbles is directly proportional to the number of explosions.

[0048] The above description is only a preferred embodiment of the present invention, but the present invention is not limited thereto. As in the above four embodiments, the pressure-resistant liquid storage tank 2 is filled with water, but obviously other liquids can also be filled in. All equivalent substitutions or equivalent changes made to the concept and technical solution of the present invention should be covered within the protection scope of the present invention.

Claims

1. A method for generating nano-hydrogen bubble liquid, characterized in that: A system for generating nano-hydrogen bubble liquid is disclosed. The system includes a pressure-resistant storage tank, a gas source control unit, and a control module. The gas source control unit includes a hydrogen source, an oxygen source, a hydrogen regulating valve, an oxygen regulating valve, a hydrogen concentration meter, and a check valve. The pressure-resistant storage tank contains an explosion reaction chamber and a conical impactor. The liquid in the pressure-resistant storage tank covers the top of the explosion reaction chamber but does not fill the entire volume of the tank. The explosion reaction chamber is fixed to the top wall of the pressure-resistant storage tank by a bracket and is located in the center of the tank. The bottom of the explosion reaction chamber is open, while the other sides are closed. The conical impactor is fixed to the bottom of the pressure-resistant storage tank and located directly below the explosion reaction chamber. The conical impact surface of the impactor faces the bottom opening of the explosion reaction chamber. The hydrogen source outlet is equipped with a hydrogen one-way switch valve, and the oxygen source outlet is equipped with an oxygen one-way switch valve. The hydrogen one-way switch valves are connected to a hydrogen regulating valve via a hydrogen pipeline, and the oxygen one-way switch valves are connected to an oxygen regulating valve via an oxygen pipeline. A hydrogen flow meter is installed on the hydrogen pipeline, and an oxygen flow meter is installed on the oxygen pipeline. The outlets of the hydrogen and oxygen sources are respectively connected to the inlet of a hydrogen concentration tester via hydrogen and oxygen pipelines. The outlet of the hydrogen concentration tester is connected to the inlet of a check valve. The outlet of the check valve is connected to an interface at the top of the explosion reaction chamber via a sealed mixing pipeline that passes through a pressure-resistant liquid storage tank. An electric spark needle is installed inside the explosion reaction chamber. The control module is connected to the electric spark needle via a wire that passes through the pressure-resistant liquid storage tank. An electronic flow meter and an electronic switch valve are installed on the mixing pipeline, and the electronic flow meter and electronic switch valve are electrically connected to the control module. Before the system is used... The hydrogen and oxygen regulating valves are continuously adjusted to ensure that the hydrogen concentration in the hydrogen-oxygen mixture measured by the hydrogen concentration tester reaches 66.7-75%, while simultaneously ensuring that the molar volume ratio of hydrogen to oxygen is greater than 2. When the system is in use, the hydrogen and oxygen regulating valves are opened, allowing the hydrogen-oxygen mixture to be discharged into the explosion reaction chamber from the interface at the top, forcing the liquid inside the chamber to be discharged through the bottom opening. The hydrogen-oxygen mixture fills and seals the explosion reaction chamber. The control module controls the electric spark needle inside the explosion reaction chamber to ignite and create an explosion within the chamber.

2. The method for generating nano-hydrogen bubble liquid according to claim 1, characterized in that: The interface at the top of the explosion reaction chamber is equipped with a one-way valve, and the inlet of the one-way valve is connected to the gas mixing pipeline.

3. The method for generating nano-hydrogen bubble liquid according to claim 1, characterized in that: The pressure-resistant liquid storage tank has a jacketed cavity on its side wall and a circulation inlet and a circulation outlet that connect the jacketed cavity. Cooling liquid is provided in the jacketed cavity. The circulation inlet and circulation outlet are connected to the outlet and inlet of the circulation pump respectively through circulation pipelines.

4. The method for generating nano-hydrogen bubble liquid according to claim 1, characterized in that: The method includes the following steps: 1) Add water Add water to the pressure-resistant storage tank, and stop adding water when the level gauge shows the specified level; 2) Hydrogen-oxygen mixing debugging Open the hydrogen one-way valve and the hydrogen regulating valve, and simultaneously open the oxygen one-way valve and the oxygen regulating valve. Continuously adjust the hydrogen regulating valve and the oxygen regulating valve, while observing the hydrogen concentration value of the hydrogen concentration tester and the flow rate values ​​of the hydrogen flow meter and the oxygen flow meter, until the ratio of hydrogen outflow rate to oxygen outflow rate is greater than 2 and the hydrogen concentration in the hydrogen-oxygen mixture reaches 66.7-75%. 3) Introduce a hydrogen-oxygen mixture into the explosion reaction chamber. The control module controls the opening of the electronic switch valve, allowing the hydrogen-oxygen mixture to be introduced into the explosion reaction chamber through the mixing pipe. The flow rate of the hydrogen-oxygen mixture is controlled according to the signal fed back to the control module by the electronic flow meter. The hydrogen-oxygen mixture introduced into the explosion reaction chamber first uses pressure to discharge the water in the explosion reaction chamber to the bottom opening of the explosion reaction chamber, so that a closed cavity is formed in the explosion reaction chamber. The hydrogen-oxygen mixture is filled and sealed in the explosion reaction chamber. 4) Explosion The control module controls the spark needle inside the explosion reaction chamber to ignite and cause an explosion inside the explosion reaction chamber.

5. The method for generating nano-hydrogen bubble liquid according to claim 4, characterized in that: The explosion in step 4) is repeated multiple times.

Images