An ultrasonic hydrogen mixing and dissolving device

Abstract

This invention provides an ultrasonic hydrogen mixing and dissolving device. The tank contains a closed space for hydrogen mixing and dissolving. An inlet pipe is connected to the top of the tank and feeds a measured amount of drinking water into the closed space. An inlet pipe is connected to the bottom of the tank and feeds a measured amount of hydrogen gas into the closed space. An outlet pipe is connected to the bottom of the tank and is equipped with an outlet valve, allowing high-concentration hydrogen-rich water to be discharged from the closed space after hydrogen mixing and dissolving. A circulation and fusion unit is located within the closed space and includes an ultrasonic mixer, configured to drive the drinking water and hydrogen gas to circulate and mix within the closed space, and to perform ultrasonic treatment during the circulation. A central control unit controls the circulation drive unit to drive the drinking water and hydrogen gas to circulate and mix within the closed space; and controls the ultrasonic treatment unit to perform ultrasonic treatment on the drinking water and hydrogen gas passing through the flow channel, effectively enhancing the mixing rate and uniformity of hydrogen gas in the drinking water.

Description

Technical Field

[0001] This invention relates to the field of hydrogen mixing and dissolving equipment technology, and in particular provides an ultrasonic hydrogen mixing and dissolving device. Background Technology

[0002] Ultrasound is a high-frequency electromagnetic wave with a short wavelength. By focusing underwater acoustic energy, ultrasound can generate oscillations of a certain intensity in a liquid, creating alternating high and low pressure cycles. During the low-pressure cycle, ultrasound generates microvacuum bubbles in the liquid. During the high-pressure cycle, these microvacuum bubbles violently rupture, and the implosion of these cavitation bubbles induces strong hydrodynamic shear forces. These shear forces ensure thorough mixing of reactants and shorten fusion time. The reaction process offers advantages such as being pollution-free, energy-efficient, and highly efficient in stirring, and is widely used in chemistry, biology, and medicine.

[0003] Currently, ultrasonic technology has been used in some preliminary explorations of hydrogen mixing and dissolving in liquids. The common practice is to install an ultrasonic mixer on the inner wall of the tank, deliver the liquid and hydrogen into the tank, and then turn on the ultrasonic mixer to apply ultrasonic treatment to the still liquid to improve the mixing of the liquid and hydrogen.

[0004] Practice has shown that while this method achieves a certain hydrogen dissolution effect, it has some technical problems that need to be solved. For example, when storing a large volume of static liquid in a large tank, the mixing depth of the ultrasonic mixer alone is inconsistent. Due to the propagation mechanism of sound waves, different components in the mixture absorb and reflect sound waves to different degrees, resulting in different mixing degrees and uneven mixing. Furthermore, the contact area between hydrogen gas floating on the liquid surface and the liquid is small, the mixing time is long, and the ultrasonic power required is large, resulting in high power consumption and increased energy consumption for mixing. Summary of the Invention

[0005] Based on this, the present invention provides an ultrasonic hydrogen mixing and dissolving device to achieve the mixing and flow of drinking water and hydrogen in a closed container, and to perform ultrasonic treatment during the mixing and flow process to effectively enhance the mixing rate and uniformity of hydrogen in drinking water, improve the mixing efficiency, reduce process energy consumption, and is suitable for large-capacity applications.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: an ultrasonic hydrogen mixing and dissolving device, comprising a tank, an inlet pipe, an inlet pipe, an outlet pipe, a circulation and fusion unit, and a central control unit. The tank is provided with a closed space for hydrogen mixing and dissolving; the inlet pipe is connected to the top of the tank and is equipped with an inlet valve to input a fixed amount of drinking water into the closed space; the inlet pipe is connected to the bottom of the tank and is equipped with an inlet valve to input a fixed amount of hydrogen gas into the closed space; the outlet pipe is connected to the bottom of the tank and is equipped with an outlet valve to output high-concentration hydrogen-rich water after hydrogen mixing and dissolving from the closed space; the circulation and fusion unit is disposed within the closed space and includes an ultrasonic mixer, configured to drive the drinking water and hydrogen gas in the closed space to circulate and mix, and to perform ultrasonic treatment within the circulation channel; the central control unit is connected to the inlet valve, the inlet valve, the outlet valve, and the circulation and fusion unit for control.

[0007] Furthermore, the circulating fusion unit includes a closed space divided into a bottom space and a top space, located in the middle of the tank in the height direction. The circulating fusion unit includes a composite rotor and a composite stator that cooperate with each other. The high-concentration hydrogen-rich water is driven to circulate between the bottom space and the top space by rotating the composite rotor around the vertical central axis. The rotating composite rotor is arranged in the center of the tank and occupies a large cross-sectional area of ​​the tank, which is conducive to achieving uniform mixing of hydrogen and drinking water in the top space and the bottom space, rather than only a portion participating in the mixing.

[0008] Furthermore, the composite stator includes a central cavity at the bottom center position between the top plate and the bottom plate, and a tangential flow channel at the top periphery. The outer end of the tangential flow channel extends downward and has an external liquid outlet facing the central axis, and an inner liquid outlet at the inner end. The composite rotor includes a central shaft and an impeller. The impeller is connected near the middle of the central shaft. The central shaft has a vertically penetrating axial flow channel. The composite rotor rotates with the composite stator. The impeller is located in the central cavity and its outer edge is arranged opposite to the external liquid outlet of the tangential flow channel, realizing active circulation flow between the top and bottom spaces.

[0009] Furthermore, the top guide shroud is connected to the top of the central shaft. The top guide shroud is connected to the axial flow channel and is provided with a concave shroud plate with a high center and low outer periphery. The array of concave shroud plates is arranged with upper through holes. The central shaft is located below the impeller and is provided with a lower through hole that is connected to the axial flow channel. The concave structure can improve the hydrogen collection effect and reduce the outward escape of hydrogen along the edge of the shroud plate.

[0010] Furthermore, a bottom pipe extending downwards is provided at the center of the bottom of the tank, and the lower end of the central shaft extends into the bottom pipe. A vertical ultrasonic mixer is provided in the axial flow channel. The vibration generating end of the vertical ultrasonic mixer is located on the bottom sealing plate of the bottom pipe, and the vibrator extends into the axial flow channel and is higher than the lower through hole, so that all the high-concentration hydrogen-rich water flowing through the axial flow channel passes through the vibrator and is thus subjected to ultrasonic treatment, thereby improving the fusion rate.

[0011] Furthermore, the tangential flow channels include at least two arranged in a circular array on the outer periphery of the central cavity, with each external liquid outlet arranged on the outer circumference of the central cavity.

[0012] Furthermore, the drive motor is connected to the connecting seat at the center of the upper end of the composite rotor via a rotating rod. A pressure sensor is installed on the rotating rod, and the central control unit is electrically connected to the pressure sensor and is configured to control the cyclic fusion unit according to the detection value of the pressure sensor.

[0013] Furthermore, the front end of the air intake pipe extends into the bottom pipe and is connected to an air intake nozzle that extends into the axial flow channel. The air intake pipe is equipped with a one-way valve that restricts the gas from flowing into the air intake nozzle in one direction. A pressure sensor for monitoring air pressure is installed on the top of the tank. The central control unit is connected to the pressure sensor and the return air pump signal and is configured to control the start and stop of the return air pump based on the gas pressure at the top of the enclosed space detected by the pressure sensor.

[0014] Furthermore, a return air pipe is provided between the top space and the bottom space of the tank. One end of the return air pipe is connected to the top of the tank and the other end is connected to the air inlet nozzle. A return air pump is provided on the return air pipe to drive the gas to flow to the air inlet nozzle. A liquid level sensor is provided on the outside of the tank to detect the liquid level. The central control unit is connected to the liquid level sensor and the return air pump and is configured to control the operation of the circulation fusion unit according to the liquid level height detected by the liquid level sensor.

[0015] Compared to existing techniques that use ultrasonic mixers on tank walls to dissolve hydrogen under static liquid conditions, the ultrasonic hydrogen mixing and dissolving device provided by this invention has the following main advantages:

[0016] 1. The central control unit controls the delivery of a fixed amount of drinking water and hydrogen into the enclosed space through the liquid inlet pipe and the gas inlet pipe. It also controls the circulation and fusion unit to drive the drinking water and hydrogen to circulate and mix in the enclosed space. An ultrasonic mixer is arranged in the circulation channel to perform ultrasonic treatment on the high-concentration hydrogen-rich water in the relatively narrow circulation channel. This not only increases the contact area between hydrogen and drinking water, but also increases the relative contact area with the ultrasonic mixer, improving the uniformity of contact between drinking water and ultrasonic waves. This can effectively improve the degree and uniformity of hydrogen fusion in drinking water, shorten the fusion time, improve the fusion efficiency and reduce the process energy consumption, making it suitable for large-volume mixing operations.

[0017] 2. The circulating fusion unit is equipped with a composite rotor and a composite stator, dividing the enclosed space into a top space and a bottom space. The impeller rotates with the composite rotor and generates centrifugal force on the high-concentration hydrogen-rich water, pushing the high-concentration hydrogen-rich water in the bottom space through the tangential flow channel into the top space, and then returning from the top space to the bottom space through the axial flow channel. By arranging vertical ultrasonic mixers in the axial flow channel of the composite rotor, ultrasonic treatment is performed in the circulation, achieving overall uniform mixing of the high-concentration hydrogen-rich water, which is beneficial to improving the uniformity of fusion.

[0018] 3. A top guide shroud connected to the axial flow channel is installed at the upper end of the composite rotor. The concave shroud at the bottom of the top guide shroud is set with the middle higher and the surrounding area lower, and is arranged vertically opposite to the outer liquid outlet of the tangential flow channel. Most of the hydrogen in the high-concentration hydrogen-rich water discharged from the tangential flow channel of the composite stator is directly introduced into the top guide shroud through the upper through hole of the concave shroud by buoyancy, and re-enters the circulation flow to continuously mix with the high-concentration hydrogen-rich water. This avoids the problem of a large amount of hydrogen floating to the liquid surface and being unable to participate in the circulation flow again, thereby improving the fusion efficiency.

[0019] 4. A return gas pipe is installed between the top and bottom spaces of the tank. The upper end of the return gas pipe is connected to the top of the tank, and the lower end is connected to the air inlet nozzle at the bottom of the tank. A return gas pump is installed on the return gas pipe. The amount of gas escaping into the upper space is detected by monitoring the pressure or liquid level in the upper space of the tank. When the amount of hydrogen in the upper space exceeds the set range, the gas pump is activated to return the hydrogen to the bottom space, so that the hydrogen can be recycled and fused again through the recycling and fusion unit. This replenishes the escaping hydrogen to the recycling and fusion unit, solving the problem of hydrogen escaping and being unable to participate in the recycling and fusion process, and effectively improving the incorporation degree of hydrogen in drinking water. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the ultrasonic hydrogen mixing and dissolving device provided.

[0022] Figure 2 This is an axial cross-sectional view of an embodiment of the ultrasonic hydrogen mixing and dissolving device provided.

[0023] Figure 3 This is a schematic diagram of the hydrogen mixing and dissolving state of the provided ultrasonic hydrogen mixing and dissolving device.

[0024] Figure 4 This is a three-dimensional structural diagram of the provided composite rotor;

[0025] Figure 5 This is a three-dimensional structural diagram of the provided composite rotor with some parts removed.

[0026] Figure 6 The provided axial sectional view of the composite rotor;

[0027] Figure 7 A three-dimensional structural diagram of the composite stator with the portion removed;

[0028] Figure 8 It is along Figure 7 A cross-sectional view along line AA;

[0029] Figure 9 This is a schematic diagram showing the state of drinking water and hydrogen gas circulating and mixing between the composite rotor and the composite stator.

[0030] Explanation of reference numerals in the attached diagram:

[0031] 1-Tank body, 11-Bottom pipe, 12-Liquid level sensor, 13-Pressure sensor;

[0032] 21-Inlet pipe;

[0033] 31-Intake pipe, 32-Intake nozzle, 33-Return pipe, 34-Return pump;

[0034] 4-Discharge tube;

[0035] 5-Drive motor, 51-Rotor, 52-Pressure sensor;

[0036] 6-Composite rotor, 61-Central shaft, 62-Impeller, 63-Top guide shroud, 64-Upper through hole, 65-Lower through hole, 66-Connecting seat;

[0037] 7-Composite stator, 71-Top plate, 72-Bottom plate, 73-External liquid outlet, 74-Tangential flow channel, 75-Internal liquid outlet, 76-Central cavity;

[0038] 8-Vertical ultrasonic mixer.

[0039] It should be understood that the dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Furthermore, the same or similar reference numerals denote the same or similar components. Detailed Implementation

[0040] Currently, ultrasonic technology has been used in some preliminary explorations of hydrogen mixing and dissolving in liquids. A common practice is to install an ultrasonic mixer on the inner wall of a tank, deliver the liquid and hydrogen into the tank, and then activate the ultrasonic mixer to apply ultrasonic waves to the still liquid to improve mixing. However, through long-term practice, the inventors discovered that when storing a large volume of still liquid in a large tank, the mixing depth achieved by ultrasonic mixers alone is inconsistent. Due to the propagation mechanism of sound waves, different components in the mixture absorb and reflect sound waves to varying degrees, resulting in uneven mixing. Furthermore, the contact area between hydrogen gas floating on the liquid surface and the liquid is small, leading to a longer mixing time.

[0041] To address this issue, the inventors provide an ultrasonic hydrogen mixing and dissolving device. The tank contains a closed space for hydrogen mixing and dissolving. A circulating fusion unit, including an ultrasonic mixer, is located within this closed space and is configured to drive the circulating flow of drinking water and hydrogen within the closed space for mixing, and to perform ultrasonic treatment during the flow cycle. A central control unit controls the circulating drive unit to drive the circulating flow of drinking water and hydrogen within the closed space for mixing; and controls the ultrasonic treatment unit to perform ultrasonic treatment on the drinking water and hydrogen passing through the flow channel, thereby achieving the mixing and flow of drinking water and hydrogen within the closed container. The ultrasonic treatment during the mixing and flow process effectively enhances the fusion rate and uniformity of hydrogen in the drinking water, improves fusion efficiency, and reduces process energy consumption, making it suitable for large-capacity applications.

[0042] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the present disclosure or its application or use. The present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that the present disclosure will be thorough and complete, and will fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps and the composition of materials set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0043] Example 1:

[0044] like Figures 1 to 9 As shown, the ultrasonic hydrogen mixing and dissolving device provided by the present invention includes a tank 1, an inlet pipe 21, an air inlet pipe 31, an outlet pipe 4, and a circulation fusion unit. The tank 1 is provided with a closed space for hydrogen mixing and dissolving. The inlet pipe 21 is connected to the top of the tank 1 and is provided with an inlet valve to input a fixed amount of drinking water into the closed space. The air inlet pipe 31 is connected to the bottom of the tank 1 and is provided with an air inlet valve to input a fixed amount of hydrogen into the closed space. The outlet pipe 4 is connected to the bottom of the tank 1 and is provided with an outlet valve to output high-concentration hydrogen-rich water after hydrogen mixing and dissolving from the closed space. The circulation fusion unit is located in the closed space and includes an ultrasonic mixer, configured to drive the drinking water and hydrogen in the closed space to circulate and mix, and to perform ultrasonic treatment in the circulation channel. The central control unit is connected to the inlet valve, the air inlet valve, the outlet valve, and the circulation fusion unit for control.

[0045] During operation, the central control unit controls the delivery of a fixed amount of drinking water and hydrogen into the enclosed space through the liquid inlet pipe 21 and the air inlet pipe 31. It also controls the circulation and fusion unit to drive the drinking water and hydrogen to circulate and mix in the enclosed space. An ultrasonic mixer is arranged in the circulation channel to perform ultrasonic treatment on the high-concentration hydrogen-rich water passing through the relatively narrow circulation channel.

[0046] Based on the above embodiments, the provided ultrasonic hydrogen mixing and dissolving device not only increases the contact area between hydrogen and drinking water, but also increases the relative contact area with the ultrasonic mixer, thereby improving the uniformity of contact between drinking water and ultrasound. It can effectively improve the degree and uniformity of hydrogen fusion in drinking water, shorten the fusion time, improve the fusion efficiency and reduce process energy consumption, and is suitable for large-volume mixing operations.

[0047] It should be noted that in Embodiment 1 and the following embodiments, the central control unit can be an existing automated control device such as an industrial computer, a PLC programmable controller, or an artificial intelligence controller. The liquid inlet switch valve, air inlet switch valve, and liquid outlet switch valve used are all electrically controlled valves. Flow meters are respectively installed on the liquid inlet pipe 21, air inlet pipe 31, and liquid outlet pipe 4 so that the liquid inlet volume of the mixed drinking water, the hydrogen input volume, and the output volume of high-concentration hydrogen-rich water can be accurately controlled by the central control unit. The structural principle will not be described in detail here.

[0048] The ultrasonic mixer used utilizes the cavitation effect and other physical effects of ultrasound in high-concentration hydrogen-rich water to effectively agitate and flow the medium, disrupting its structure and pulverizing particles. This is mainly due to the changes in particle surface morphology caused by liquid-liquid collisions, microphase flow, and shock waves. The ultrasonic mixer used in this invention has an impact generating end and a vibrator. The impact generating end is used to generate high-frequency vibrations and transmit them to the vibrator. The vibrator is a component with a structure similar to a round bar. The ultrasonic mixer used is a commonly used industrial device, and its structural principle will not be described in detail.

[0049] Example 2:

[0050] like Figure 2 , Figure 3 and Figure 9 As shown, the circulation fusion unit includes a closed space divided into a bottom space and a top space, which is located in the middle of the height direction of the tank 1. The circulation fusion unit includes a composite rotor 6 and a composite stator 7 that cooperate with each other. The high-concentration hydrogen-rich water is driven to circulate between the bottom space and the top space by the rotation of the composite rotor 6 around the vertical central axis 61.

[0051] like Figure 6 , Figure 7 and Figure 8 As shown, the composite stator 7 includes a central cavity 76 located at the bottom center between the top plate 71 and the bottom plate 72, and a tangential flow channel 74 located on the top periphery. The outer end of the tangential flow channel 74 extends downward and has an outer liquid outlet 73 facing the central axis 61, and an inner liquid outlet 75 at its inner end. As shown in the figure, in a preferred embodiment, the tangential flow channel includes two channels arranged in a circular array outside the central cavity 76. The two tangential flow channels 74 are arranged on the outer edge of the circular central cavity, which can efficiently receive high-concentration hydrogen-rich water mixed with hydrogen gas sprayed from inside and outside the high-speed rotating impeller box in the central cavity. Then, the high-concentration hydrogen-rich water flows inward along the tangential flow channel 74 and enters the top space.

[0052] like Figure 4 , Figure 5 and Figure 6As shown, the composite rotor 6 includes a central shaft 61 and an impeller 62. The impeller 62 is connected near the middle of the central shaft 61. The central shaft 61 has a vertically penetrating axial flow channel. The composite rotor 6 is rotatably coupled with the composite stator 7. The impeller 62 is disposed within the central cavity 76, and its outer edge is arranged opposite to the outer liquid outlet 73 of the tangential flow channel 74. Under high-speed rotation, the impeller 62 is similar to the centrifugal wheel of a water pump, with the input end located at the intersection of the bottom of the impeller 62 and the central shaft, and the output end located at the outer edge of the impeller.

[0053] The circulating fusion unit is equipped with a composite rotor 6 and a composite stator 7, which divides the enclosed space into a top space and a bottom space. The impeller rotates with the composite rotor 6 and generates centrifugal force on the high-concentration hydrogen-rich water, pushing the high-concentration hydrogen-rich water in the bottom space through the tangential flow channel 74 into the top space, and then returning from the top space to the bottom space through the axial flow channel. The high-concentration hydrogen-rich water is subjected to ultrasonic treatment in the circulation through an ultrasonic mixer, which achieves overall uniform mixing of the high-concentration hydrogen-rich water and helps to improve the uniformity of fusion.

[0054] like Figure 1 , Figure 2 and Figure 3 As shown, a bottom pipe 11 extending downwards is provided at the center of the bottom of the tank 1. The lower end of the central shaft 61 extends into the bottom pipe 11. A vertical ultrasonic mixer 8 is provided in the axial flow channel. The vibration generating end of the vertical ultrasonic mixer 8 is provided on the bottom sealing plate of the bottom pipe 11, and the vibrator extends into the axial flow channel and is higher than the lower through hole 65, so that all the high-concentration hydrogen-rich water flowing in the vertical flow channel passes through the vibrator, thereby increasing the amount of high-concentration hydrogen-rich water treated by ultrasound and improving the degree of fusion.

[0055] like Figure 7 and Figure 8 As shown, the tangential flow channel 74 includes at least two channels arranged in a circumferential array on the outer periphery of the central cavity 76, and each external liquid outlet 73 is arranged on the outer circumference of the central cavity 76.

[0056] Based on the above embodiments, in the axial flow channel of the composite rotor 6, high-concentration hydrogen-rich water is located in front of the input end of the impeller 62 and is in a suction state with low pressure. The internal hydrogen bubbles are relatively large, making the longitudinal ultrasonic mixer with a low frequency and long wavelength more efficient. The vertical ultrasonic mixer 8 performs ultrasonic treatment on the high-concentration hydrogen-rich water in a low-pressure state during the circulation process. In the tangential flow channel 74 of the composite stator 7, high-concentration hydrogen-rich water is located behind the output end of the impeller 62 and is in a discharge state with high pressure. The internal hydrogen bubbles are relatively small, realizing differentiated treatment of high-concentration hydrogen-rich water, improving the coverage of ultrasonic treatment, and with different pressure environments, it is beneficial to improve the deep fusion degree of hydrogen in high-concentration hydrogen-rich water.

[0057] Example 3:

[0058] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 9 As shown, the composite rotor 6 is also provided with a top guide shroud 63, which is connected to the top of the central shaft 61. The top guide shroud 63 is connected to the axial flow channel and is provided with a concave shroud plate with a high middle bottom and a low outer periphery. The concave shroud plate array is provided with upper through holes 64, and the central shaft is located below the impeller 62 and is provided with a lower through hole 65 that is connected to the axial flow channel.

[0059] Based on the above embodiments, a top guide shroud 63 connected to the axial flow channel is provided at the 6th end of the composite rotor. The concave shroud plate at the bottom of the top guide shroud 63 is arranged with the middle being higher and the surrounding area being lower, and is arranged vertically opposite to the outer liquid outlet of the tangential flow channel 74. Most of the hydrogen gas in the high-concentration hydrogen-rich water discharged from the tangential flow channel of the composite stator is directly introduced into the top guide shroud through the upper through hole of the concave shroud plate due to buoyancy, and re-enters the circulation flow to continuously mix with drinking water. This avoids the problem of a large amount of hydrogen gas floating to the surface and being unable to participate in the circulation flow again, thereby improving the fusion efficiency.

[0060] like Figure 1 , Figure 2 As shown, a return air pipe 33 is also provided between the top of the tank body 1 and the air inlet nozzle 32. The upper end of the return air pipe 33 is connected to the top of the tank body 1, and the lower end is connected to the air inlet nozzle 32 at the bottom of the tank body 1. A return air pump 34 is provided on the return air pipe 33 to drive the gas to flow to the air inlet nozzle 32. A liquid level sensor 12 for detecting the liquid level is provided on the outside of the tank body 1. The central control unit is signal-connected to the liquid level sensor 12 and the return air pump 34, and is configured to control the operation of the circulation fusion unit according to the liquid level height detected by the liquid level sensor 12.

[0061] Based on this embodiment, a return gas pipe 33 is provided between the top and bottom spaces of the tank 1. The upper end of the return gas pipe 33 is connected to the top of the tank 1, and the lower end is connected to the air inlet nozzle 32 at the bottom of the tank 1. A return gas pump 34 is provided on the return gas pipe. The amount of gas escaping to the upper space is detected by monitoring the pressure or liquid level in the upper space of the tank. When the amount of hydrogen in the upper space exceeds the set range, the gas pump is turned on to return the hydrogen to the bottom space, so that the hydrogen can be recycled and fused again through the recycling and fusion unit. This replenishes the escaping hydrogen to the recycling and fusion unit, solving the problem of hydrogen escaping and being unable to participate in the recycling and fusion process, and effectively improving the fusion degree of hydrogen in high-concentration hydrogen-rich water.

[0062] Example 4:

[0063] like Figure 2 As shown, in some preferred embodiments, the drive motor 5 is connected to the connecting seat 66 at the upper center of the composite rotor 6 via a rotating rod 51. A pressure sensor 52 is provided on the rotating rod, and the central control unit is electrically connected to the pressure sensor 52 and is configured to control the cyclic fusion unit according to the detection value of the pressure sensor 52.

[0064] Based on the above embodiments, the buoyancy of the top guide shroud 63 is affected by the hydrogen content in the high-concentration hydrogen-rich water. When the hydrogen content in the high-concentration hydrogen-rich water is high, the buoyancy of the top guide shroud 63 is large, and conversely, when the hydrogen content in the high-concentration hydrogen-rich water is low, the buoyancy of the top guide shroud 63 is small. By setting a pressure sensor on the rotating rod 51, this buoyancy value can be changed. Under the condition that the hydrogen and drinking water filled into the closed space are constant, the amount of hydrogen fusion can be obtained, and the operation of the circulating fusion unit can be controlled accordingly to improve the control process accuracy of the fusion degree.

[0065] like Figure 3 As shown, the front end of the air inlet pipe 31 extends into the bottom pipe 11 and is connected to an air inlet nozzle 32 that extends into the axial flow channel. The air inlet pipe 31 is equipped with a one-way valve that restricts the gas from flowing into the air inlet nozzle 32 in one direction. A pressure sensor 13 for monitoring air pressure is installed on the top of the tank body 1. The central control unit is connected to the pressure sensor 13 and the return air pump 34 and is configured to control the start and stop of the return air pump 34 according to the gas pressure at the top of the enclosed space detected by the pressure sensor 13.

[0066] It should be noted that the pressure sensor 52, air pressure sensor 13 and liquid level sensor used in the above embodiments are all automated instruments that can convert measured values ​​into electrical signals, and all use common structures, so the structural principles will not be described in detail.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An ultrasonic hydrogen mixing and dissolving device, characterized in that, include: The tank (1) is equipped with a closed space for mixing and dissolving hydrogen; The inlet pipe (21) is connected to the top of the tank (1) and is equipped with an inlet switch valve to input a fixed amount of drinking water into the enclosed space; An inlet pipe (31) is connected to the bottom of the tank (1) and is equipped with an inlet switch valve to input a fixed amount of hydrogen into the enclosed space; The outlet pipe (4) is connected to the bottom of the tank (1) and is equipped with an outlet switch valve to output high-concentration hydrogen-rich water after hydrogen mixing and dissolving from the closed space. A circulating fusion unit, disposed within the enclosed space and including an ultrasonic mixer, is configured to drive the circulating flow of drinking water and hydrogen within the enclosed space for mixing and ultrasonic treatment within the circulating channel. as well as The central control unit is connected to the liquid inlet switch valve, the air inlet switch valve, the liquid outlet switch valve, and the circulation fusion unit for control. The circulation fusion unit includes a closed space divided into a bottom space and a top space, which is located in the middle of the height direction of the tank (1). The circulation fusion unit includes a composite rotor (6) and a composite stator (7) that cooperate with each other. The high-concentration hydrogen-rich water is driven to circulate between the bottom space and the top space by the composite rotor (6) rotating around the vertical central axis (61). The composite stator (7) includes a central cavity (76) at the bottom center position between the top plate (71) and the bottom plate (72), and a tangential flow channel (74) at the top periphery. The outer end of the tangential flow channel (74) extends downward and is provided with an external liquid outlet (73) arranged toward the central axis (61), and an inner liquid outlet (75) is provided at the inner end. The composite rotor (6) includes a central shaft (61) and an impeller (62). The impeller (62) is connected near the middle of the central shaft (61). The central shaft (61) is provided with a vertically penetrating axial flow channel. The composite rotor (6) is rotatably engaged with the composite stator (7). The impeller (62) is located in the central cavity (76) and its outer edge is arranged opposite to the outer liquid outlet (73) of the tangential flow channel (74).

2. The ultrasonic hydrogen mixing and dissolving device according to claim 1, characterized in that, The bottom center of the tank (1) is provided with a bottom tube (11) extending downwards. The lower end of the central shaft (61) extends into the bottom tube (11). A vertical ultrasonic mixer (8) is provided in the axial flow channel. The vibration generating end of the vertical ultrasonic mixer (8) is provided on the bottom sealing plate of the bottom tube (11), and the vibrator extends into the axial flow channel and is higher than the lower through hole (65).

3. The ultrasonic hydrogen mixing and dissolving device according to claim 2, characterized in that, The tangential flow channel (74) includes at least two channels arranged in a circumferential array on the outer periphery of the central cavity (76), and each external liquid outlet (73) is arranged on the outer circumference of the central cavity (76).

4. The ultrasonic hydrogen mixing and dissolving device according to claim 3, characterized in that, The top of the central shaft (61) is provided with a flow guide shroud (63), the top flow guide shroud (63) is connected to the axial flow channel and is provided with a concave shroud plate with a high middle bottom and a low outer periphery. The concave shroud plate array is provided with an upper through hole (64), and the central shaft (61) is located below the impeller (62) and is provided with a lower through hole (65) connected to the axial flow channel.

5. The ultrasonic hydrogen mixing and dissolving device according to claim 4, characterized in that, The drive motor (5) is connected to the connecting seat (66) at the center of the upper end of the composite rotor (6) via the rotating rod (51). A pressure sensor (52) is provided on the rotating rod. The central control unit is electrically connected to the pressure sensor (52) and is configured to control the cyclic fusion unit according to the detection value of the pressure sensor (52).

6. The ultrasonic hydrogen mixing and dissolving device according to claim 2, characterized in that, The front end of the air inlet pipe (31) extends into the bottom pipe (11) and is connected to an air inlet nozzle (32) extending into the axial flow channel. The air inlet pipe (31) is equipped with a one-way valve that restricts the gas from flowing into the air inlet nozzle (32) in one direction. A pressure sensor (13) for monitoring air pressure is installed on the top of the tank (1). The central control unit is connected to the pressure sensor (13) and the return air pump (34) and is configured to control the start and stop of the return air pump (34) according to the gas pressure at the top of the enclosed space detected by the pressure sensor (13).

7. The ultrasonic hydrogen mixing and dissolving device according to claim 6, characterized in that, A return air pipe (33) is provided between the top space and the bottom space of the tank (1). One end of the return air pipe (33) is connected to the top of the tank (1), and the other end is connected to the air inlet nozzle (32). A return air pump (34) is provided on the return air pipe (33) to drive the gas to flow to the air inlet nozzle (32). A liquid level sensor (12) for detecting the liquid level is provided on the outside of the tank (1). The central control unit is connected to the liquid level sensor (12) and the return air pump (34) and is configured to control the operation of the circulation fusion unit according to the liquid level height detected by the liquid level sensor (12).

Images