Solid-state hydrogen storage device for hydrogen health

Abstract

The present invention provides a solid-state hydrogen storage device for hydrogen health, comprising a protective box, a hydrogen storage tank, a flow meter and a breathing tube, wherein the hydrogen storage tank, the flow meter and the breathing tube are all arranged in the protective box; a hydrogen storage alloy is stored in the hydrogen storage tank, a pressure reducing valve is provided at the bottle mouth of the hydrogen storage tank, the air inlet of the flow meter is connected to the pressure reducing valve through a hydrogen transmission pipe, and the air outlet of the flow meter is connected to the breathing tube. The device controls the flow rate of hydrogen to 100-200mL / min and the pressure of hydrogen to within one atmosphere by adding a low-pressure secondary pressure reducing valve, thereby meeting the use requirements of a normal hydrogen health respirator. The flow rate of hydrogen can be intuitively displayed by the flow meter, the filter filters the hydrogen, the humidifier in the flow meter increases the moisture content of the hydrogen, and further filters impurities in the hydrogen. The device is easy to operate and the hydrogen absorption amount can be adjusted according to personal preference.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen health, and in particular to a solid-state hydrogen storage device for hydrogen health. Background Art

[0002] With the advancement of modern medical technology, more and more research has revealed that hydrogen can be used as a therapeutic gas, demonstrating its effectiveness in preventing and treating a variety of diseases. As the smallest and lightest known element, hydrogen has a strong reducing property and can act as a selective antioxidant, effectively scavenging excess and toxic free radicals in the body, such as hydroxyl radicals. Hydrogen can be directly inhaled and enters the bloodstream through breathing, circulating throughout the body, where it acts as a reducing agent against oxidative stress caused by harmful free radicals. Research has shown that the optimal hydrogen uptake concentration range for the human body is 2-6%, within which significant therapeutic effects are achieved. Most current devices achieve this by adjusting the hydrogen release rate. However, existing hydrogen respirators have some drawbacks in practical use. For one thing, they are bulky and difficult to carry around. Furthermore, current hydrogen therapy or respiration devices typically use a source pressure that is too high. For example, the hydrogen pressure used for diving breathing is often tens to several dozen atmospheres. Treatment devices require even lower hydrogen partial pressures.

[0003] Solid-state hydrogen storage technology uses hydrogen storage alloys to form hydrides with hydrogen. This technology boasts low storage pressure, high hydrogen storage capacity, simple dehydrogenation conditions, easy hydrogen control, and high safety. The equilibrium pressure between metal hydride formation and decomposition is appropriate, enabling hydrogen absorption and desorption at a stable, appropriate hydrogen pressure. This allows for rapid hydrogen absorption and desorption rates and a long cycle life. This technology perfectly meets the requirements of hydrogen health devices for low hydrogen source pressure, slow flow rate, and stable hydrogen supply.

[0004] Therefore, there is a need for a solid-state hydrogen storage device for health use that is easy to carry and can output hydrogen at a suitable pressure and flow rate. Summary of the Invention

[0005] The object of the present invention is to provide a solid-state hydrogen storage device for hydrogen health, which is easy to operate, can adjust the hydrogen absorption amount according to personal preference, and is easy to carry and use.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A solid-state hydrogen storage device for hydrogen health includes a protective box, a hydrogen storage tank, a flow meter and a breathing tube, wherein the hydrogen storage tank, the flow meter and the breathing tube are all arranged in the protective box; the hydrogen storage tank stores a hydrogen storage alloy, a pressure reducing valve is provided at the bottle mouth of the hydrogen storage tank, an air inlet of the flow meter is connected to the pressure reducing valve through a hydrogen transmission pipe, and an air outlet of the flow meter is connected to the breathing tube.

[0008] Furthermore, in the above-mentioned solid-state hydrogen storage device for hydrogen health, the protective box includes a box body and a box cover, the box body includes a accommodating box and a storage box, one side of the accommodating box is connected to one side of the storage box, the upper end of the accommodating box is provided with a first storage hole, and the bottle body of the hydrogen storage tank is located in the first storage hole; the upper end of the storage box is provided with a second storage hole, and the second storage hole is used to store the flow meter; the storage box is provided with a box door, and the internal space of the storage box is used to store the breathing tube; the box cover is covered on the box body, and the box cover and the box body are connected by a snap buckle; the outer surface of the box body is provided with a shoulder strap.

[0009] Furthermore, in the above-mentioned solid-state hydrogen storage device for hydrogen health, the hydrogen transmission pipe is a hose, and a valve is provided on the hydrogen transmission pipe. When the valve is opened, the hydrogen storage tank can transmit hydrogen to the breathing tube through the hydrogen transmission pipe.

[0010] Furthermore, in the above-mentioned solid-state hydrogen storage device for hydrogen health, a filter is provided on the hydrogen transmission pipe, and the filter is used to filter the hydrogen flowing through the hydrogen transmission pipe; preferably, the hydrogen transmission pipe is connected to the hydrogen storage tank through a sealed interface.

[0011] Furthermore, in the above-mentioned solid-state hydrogen storage device for hydrogen health, the flowmeter is a rotor flowmeter, which includes a shell, a float and a conical measuring chamber. The shell is a cylindrical structure with an opening at the bottom, and the upper end of the conical measuring chamber is located in the shell. The float is arranged in the conical measuring chamber. The float can move freely up and down along the center line of the conical measuring chamber. The flow rate of hydrogen can be determined by the height of the float. The air outlet of the flowmeter is provided on the shell, and the upper end of the conical measuring chamber is connected to the air outlet of the flowmeter; the breathing tube is a nasal breathing tube, and the air outlet is connected to the breathing tube.

[0012] Furthermore, in the above-mentioned solid-state hydrogen storage device for hydrogen health, the flow meter also includes a humidifier, the upper end of the humidifier is connected to the outer shell, the lower end of the conical measuring chamber extends to the bottom of the humidifier, and the upper end of the humidifier is provided with an air inlet of the flow meter. Pure water is stored in the humidifier, and the lower end of the conical measuring chamber is located below the liquid level of the pure water in the humidifier. The air inlet of the flow meter is connected to the hydrogen transmission pipe through a sealed interface. The humidifier can increase the moisture content of hydrogen, and the humidifier can filter impurities in the hydrogen.

[0013] Furthermore, in the above-mentioned solid-state hydrogen storage device for hydrogen health, a pressure gauge is provided at the bottle mouth of the hydrogen storage tank, and the pressure gauge can display the pressure of the hydrogen in the hydrogen storage tank.

[0014] Furthermore, in the above-mentioned solid-state hydrogen storage device for hydrogen health, the pressure reducing valve includes a valve body, a valve cover, an inflation joint, a valve stem nut assembly and an air outlet joint, wherein the valve body has an air inlet connected to the outside, the upper end of the valve body is connected to the lower end of the valve cover, the valve stem nut assembly and the air outlet joint are both connected to the valve cover, and the inflation joint is connected to the valve body; the pressure reducing valve limits the gas flow rate to 100mL~200mL per minute and the gas output pressure to below 0.1MPa.

[0015] Furthermore, in the above-mentioned solid-state hydrogen storage device for hydrogen health, an inflation port is further provided at the lower end of the valve body, one end of the inflation joint is placed in the valve body, and the other end of the inflation joint is located outside the valve body, and the inflation joint and the valve body are connected by a tapered thread; an inflation core is installed inside the inflation joint, and the inflation core limits the gas to flow only from the outside of the inflation joint to the inflation port; a first matching cavity is formed between the valve body and the inflation joint, and the inflation port is communicated with the first matching cavity; the inflation joint is axially provided with an inflation pipe, and the inflation joint The head is provided with a first groove, the inflation pipe is connected to the first groove, and the diameter of the first groove is larger than the aperture of the inflation pipe; the inflation core includes an air core seat and an air core rod, the air core seat is located in the first groove, one end of the air core rod is connected to the air core seat, and the other end of the air core rod is located in the inflation pipe, the inflation core can move along the axial direction of the inflation pipe, and the air core rod is provided with a first sealing ring, which can seal between the air core seat and the inflation joint; hydrogen can be replenished into the hydrogen storage tank through the inflation joint.

[0016] Furthermore, in the above-mentioned solid-state hydrogen storage device for hydrogen health, the air inlet is located at the lower end of the valve body, the air inlet is connected to the air outlet end of the hydrogen storage tank, the lower end of the valve body has a threaded structure connected to the hydrogen storage tank, the upper end of the valve body has a threaded structure connected to the valve cover, and the upper end of the threaded structure located at the lower end of the valve body is sleeved with a second sealing ring, and the second sealing ring is used to seal between the valve body and the hydrogen storage tank; the valve cover has a first threaded hole and a second threaded hole, the first threaded hole and the second threaded hole are relatively arranged on the side wall of the valve cover, the valve stem nut assembly is connected to the valve cover through the first threaded hole, and the air outlet joint is connected to the valve cover through the second threaded hole; the lower end of the valve cover has a threaded hole connected to the valve body Threaded structure, the valve cover and the valve body are connected by a thread; a set screw is provided on the side wall of the valve cover, and the set screw contacts the upper end of the valve body after passing through the valve cover, and tightening the set screw can fix the axial position between the valve cover and the valve body; the valve stem nut assembly includes a valve stem and a nut, one end of the valve stem is placed in the valve cover, and the other end of the valve stem is located outside the valve cover, and the nut fixes the valve stem to the valve cover; a first sealing gasket is embedded in one end of the valve stem, and a switch knob is installed at the other end of the valve stem, and the switch knob can drive the valve stem to rotate to adjust the relative position of the valve stem and the valve cover, and a second annular groove is provided on the outer periphery close to one end of the valve stem, and a third sealing ring is provided in the second groove;

[0017] A second mating cavity is formed between one end of the valve stem and the valve cover, a third mating cavity is formed between the air outlet connector and the valve cover, a first connecting channel is provided in the valve cover, the second mating cavity and the third mating cavity are communicated with each other through the first connecting channel, and the switch knob can drive the valve stem to move toward the outside of the valve cover to open the first connecting channel; and

[0018] The switch knob can drive the valve stem to move toward the inside of the valve cover and make the first sealing gasket fit tightly against the sealing surface of the first connecting channel, so as to close the first connecting channel;

[0019] The air outlet joint is connected to the valve cover by a threaded connection, one end of the air outlet joint is placed in the valve cover, and the other end of the air outlet joint is located outside the valve cover, the air outlet joint is provided with an air outlet hole, the air outlet hole is communicated with the third matching cavity, and the plugging screw blocks the air outlet hole when the air outlet joint is not in use; a piston is provided between the valve body and the valve cover, a second sealing gasket is embedded in the lower end of the piston, the interior of the piston is hollow, and the piston consists of an upper section and a lower section, both of the upper section and the lower section are cylindrical structures, the outer diameter of the upper section is larger than the outer diameter of the lower section, and the vertical cross-section of the inner hollow part of the upper section is an inverted frustum structure, the upper end of the upper section is the large end of the frustum, and the lower end of the upper section is the small end of the frustum;

[0020] A fourth mating cavity is formed between the lower end of the piston and the valve body, a second connecting channel is provided in the valve body, the fourth mating cavity is communicated with the air inlet through the second connecting channel, and a fifth mating cavity is formed between the upper end of the piston and the valve cover, the fifth mating cavity is communicated with the second mating cavity;

[0021] The axis of the valve cover and the axis of the valve body are located on the same straight line, and the piston can move along the axial direction of the valve cover; the piston moves in a direction close to the valve body to close the second connecting channel, and the piston moves in a direction away from the valve body to open the second connecting channel; a first accommodating groove is provided in the lower end of the valve cover, and a second accommodating groove is provided in the upper end of the valve body, the upper end of the piston is placed in the first accommodating groove, and the lower end of the piston is placed in the second accommodating groove; a spring is sleeved on the outer side of the upper part of the lower section of the piston, and one end of the spring is in contact with the lower outer surface of the upper section of the piston; a third accommodating groove is further provided on the periphery of the second accommodating groove, the bottom of the third accommodating groove is higher than the bottom of the second accommodating groove, and the other end of the spring is in contact with the bottom of the third accommodating groove;

[0022] The outer diameter of the upper section is equal to the inner diameter of the first accommodating groove, the outer wall of the upper section is provided with an annular third groove, and a fourth sealing ring is provided in the third groove. The outer diameter of the lower section is equal to the inner diameter of the second accommodating groove, the outer wall of the lower section is provided with an annular fourth groove, and a fifth sealing ring is provided in the fourth groove. A filter is attached to the upper end of the piston, and the filter is used to perform preliminary filtering of the discharged gas.

[0023] Analysis shows that the present invention discloses a solid-state hydrogen storage device for hydrogen health. The device controls the flow rate of hydrogen to 100-200mL / min and the pressure of hydrogen to within one atmosphere by adding a low-pressure two-stage pressure reducing valve, thereby meeting the normal use requirements of a hydrogen health respirator. The flow rate of hydrogen can be intuitively displayed by the flow meter, the filter filters the hydrogen, and the humidifier in the flow meter increases the moisture content of the hydrogen and further filters the impurities in the hydrogen to ensure that the hydrogen meets the breathing requirements. The device is easy to operate and the hydrogen absorption amount can be adjusted according to personal preference. The close fit between the box and the shoulder strap makes it convenient for users to carry and use the device at any time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. Among them:

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the present invention after the box cover is opened.

[0026] Figure 2 FIG. 1 is a schematic diagram of a three-dimensional structure of an embodiment of the present invention.

[0027] Figure 3 This is another schematic diagram of the three-dimensional structure of the box after the lid is opened according to one embodiment of the present invention.

[0028] Figure 4 This is an exploded view of the three-dimensional structure of a pressure reducing valve according to an embodiment of the present invention.

[0029] Figure 5 A schematic cross-sectional view of a pressure reducing valve according to an embodiment of the present invention.

[0030] Figure 6 for Figure 5 Schematic diagram of the right side cross-sectional structure.

[0031] Explanation of reference numerals: 1 pressure reducing valve; 10 valve body; 101 air inlet; 102 charging port; 103 second sealing ring; 104 first matching cavity; 105 fourth matching cavity; 106 second accommodating groove; 107 third accommodating groove; 11 charging connector; 111 charging core; 112 first sealing ring; 113 gas core seat; 114 gas core rod; 115 charging pipe; 116 first groove; 12 valve cover; 121 set screw; 122 second matching cavity; 123 third matching cavity; 124 first threaded hole; 125 second threaded hole; 126 first connecting channel; 127 first accommodating groove; 13 valve stem; 131 third sealing ring Sealing ring; 132 first sealing gasket; 14 nut; 15 switch knob; 16 air outlet connector; 161 plugging screw; 17 piston; 171 fourth sealing ring; 172 fifth sealing ring; 173 filter; 174 spring; 175 second connecting channel; 176 fifth matching chamber; 177 upper section; 178 lower section; 179 second sealing gasket; 2 hydrogen storage tank; 3 flow meter; 31 housing; 32 conical measuring chamber; 33 humidifier; 4 filter; 5 valve; 6 hydrogen delivery pipe; 61 sealing interface; 7 breathing tube; 8 protection box; 81 box body; 82 box cover; 83 storage box; 84 storage box; 85 shoulder strap; 9 pressure gauge. DETAILED DESCRIPTION

[0032] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. Each example is provided by way of explanation of the present invention and is not intended to limit the present invention. Indeed, it will be apparent to those skilled in the art that modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is intended that the present invention encompasses such modifications and variations as come within the scope of the appended claims and their equivalents.

[0033] In the description of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. The terms "connected", "connected", and "set" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components; they can be wired electrical connections, radio connections, or wireless communication signal connections. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0034] One or more examples of the present invention are shown in the accompanying drawings. The detailed description uses numerical and letter designations to refer to features in the drawings. Like or similar designations in the drawings and the description have been used to refer to like or similar parts of the present invention. As used herein, the terms "first," "second," and "third," etc. are used interchangeably to distinguish one component from another and are not intended to indicate the position or importance of an individual component.

[0035] like Figures 1 to 6 As shown, according to an embodiment of the present invention, a solid-state hydrogen storage device for hydrogen health is provided, such as Figure 1 and Figure 2 As shown, the device includes a protective box 8, a hydrogen storage tank 2, a flowmeter 3, and a breathing tube 7. The hydrogen storage tank 2, flowmeter 3, and breathing tube 7 are all located within the protective box 8. The hydrogen storage tank 2 contains a hydrogen storage alloy, and a pressure reducing valve 1 is provided at the mouth of the hydrogen storage tank 2. This pressure reducing valve 1 is a low-pressure, two-stage pressure reducing valve that adjusts the hydrogen delivery pressure of the device to ensure that the hydrogen delivery pressure is within an appropriate range. The air inlet of the flowmeter 3 is connected to the pressure reducing valve 1 via a hydrogen delivery tube 6, and the air outlet of the flowmeter 3 is connected to the breathing tube 7.

[0036] Further, if Figure 2 As shown, protective box 8 comprises a box body 81 and a box cover 82. Box body 81 comprises a receiving box 83 and a storage box 84. One side of receiving box 83 is connected to one side of storage box 84. A first storage hole is provided at the top end of receiving box 83, into which the body of hydrogen storage tank 2 is located. A second storage hole is provided at the top end of storage box 84, for storing flow meter 3. This arrangement allows for flexible storage of hydrogen storage tank 2 and flow meter 3, facilitating their later replacement. Storage box 84 is provided with a door, and the interior space of storage box 84 is used to store breathing tube 7. Box cover 82 covers box body 81, and box cover 82 and box body 81 are connected by a buckle. A shoulder strap 85 is provided on the outer surface of box body 81. The close fit between box body 81 and shoulder strap 85 makes it convenient for the user to carry and use the device at any time.

[0037] Furthermore, the hydrogen transmission pipe 6 is a hose, and a valve 5 is provided on the hydrogen transmission pipe 6. When the valve 5 is opened, the hydrogen storage tank 2 can transmit hydrogen to the breathing tube 7 through the hydrogen transmission pipe 6. The valve 5 can be used to control the flow rate of the hydrogen in the hydrogen transmission pipe 6.

[0038] Furthermore, a filter 4 is provided on the hydrogen transmission pipe 6, and the filter 4 is used to filter the hydrogen flowing through the hydrogen transmission pipe 6; preferably, the hydrogen transmission pipe 6 is connected to the hydrogen storage tank 2 through a sealing interface 61 to improve the safety of the device.

[0039] Further, if Figure 3As shown, the flowmeter 3 can be, but is not limited to, a rotor flowmeter 3. In one embodiment of the present invention, the flowmeter 3 is a rotor flowmeter, comprising a housing 31, a float, and a conical measuring chamber 32. The housing 31 is a cylindrical structure with an opening at the bottom. The upper end of the conical measuring chamber 32 is located within the housing 31. The float is disposed within the conical measuring chamber 32 and can freely move up and down along the centerline of the conical measuring chamber 32. The height of the float can be used to determine the flow rate of hydrogen. The housing 31 is provided with an outlet for the flowmeter 3, and the upper end of the conical measuring chamber 32 is connected to the outlet of the flowmeter 3. The breathing tube 7 is a nasal breathing tube, and the outlet of the flowmeter 3 is connected to the breathing tube 7. Preferably, the housing 31 is made of a transparent material and is provided with a scale.

[0040] Furthermore, the flowmeter 3 also includes a humidifier 33, the upper end of the humidifier 33 is connected to the lower end of the housing 31, the lower end of the conical measuring chamber 32 extends to the bottom of the humidifier 33, the upper end of the humidifier 33 is provided with an air inlet of the flowmeter 3, the humidifier 33 stores pure water, the lower end of the conical measuring chamber 32 is located below the liquid level of the pure water in the humidifier 33, the air inlet of the flowmeter 3 is connected to the hydrogen transmission pipe 6 via a sealing interface 61, and hydrogen enters the humidifier 33 through the air inlet of the flowmeter 3. The humidifier 33 can increase the moisture content of the hydrogen and further filter impurities in the hydrogen. When water needs to be added to the humidifier 33, the humidifier 33 is replenished with water through the air inlet of the flowmeter 3.

[0041] Furthermore, a pressure gauge 9 is installed at the mouth of the hydrogen storage tank 2 to display the hydrogen pressure within the tank. For ease of operation, the pressure gauge 9 is located on the same side of the hydrogen storage tank 2 as the valve 5 of the pressure reducing valve 1. The pressure gauge 9 indicates the pressure within the hydrogen storage tank 2. If the pressure is too low, refill the tank with hydrogen through the charging connector 11 of the pressure reducing valve 1, or replace the hydrogen storage tank 2.

[0042] Further, if Figures 4 to 6 As shown, the pressure reducing valve 1 includes a valve body 10, a valve cover 12, a charging connector 11, a valve stem nut assembly, and a gas outlet connector 16. The valve body 10 has an air inlet 101 that communicates with the outside. The upper end of the valve body 10 is connected to the lower end of the valve cover 12. The valve stem nut assembly and the gas outlet connector 16 are both connected to the valve cover 12. The charging connector 11 is connected to the valve body 10. The pressure reducing valve 1 limits the gas flow rate to 100-200 mL / min and the gas output pressure to below 0.1 MPa. The pressure reducing valve 1 can stabilize the output hydrogen pressure within 1 atmosphere and the flow rate within 100-200 mL / min.

[0043] Further, if Figure 6As shown, the lower end of the valve body 10 is also provided with an inflation port 102, one end of the inflation joint 11 is placed in the valve body 10, and the other end of the inflation joint 11 is located outside the valve body 10, and the inflation joint 11 and the valve body 10 are connected by a tapered thread; an inflation core 111 is installed inside the inflation joint 11, and the inflation core 111 limits the gas to flow only from the outside of the inflation joint 11 to the inflation port 102; a first matching cavity 104 is formed between the valve body 10 and the inflation joint 11, and the inflation port 102 is connected to the first matching cavity 104; the inflation joint 11 is axially provided with an inflation pipe 115, and the inflation joint 11 is provided with a first groove 116, and the inflation pipe The channel 115 is connected to the first groove 116, and the diameter of the first groove 116 is larger than the aperture of the inflation pipe 115; the inflation core 111 includes an air core seat 113 and an air core rod 114, the air core seat 113 is located in the first groove 116, one end of the air core rod 114 is connected to the air core seat 113, and the other end of the air core rod 114 is located in the inflation pipe 115, and the inflation core 111 can move axially along the inflation pipe 115, and the air core rod 114 is sleeved with a first sealing ring 112, which can seal between the air core seat 113 and the inflation connector 11; hydrogen can be added to the hydrogen storage tank 2 through the inflation connector 11. When no external hydrogen is input to the charging connector 11, the charging core 111 moves toward the other end of the charging connector 11 under the pressure of the hydrogen in the first mating cavity 104, causing the charging core seat 113 to press tightly against the charging connector 11, and the outflow of hydrogen is restricted by the sealing of the first sealing ring 112. When the pressure of the hydrogen input to the charging connector 11 exceeds the pressure of the hydrogen in the hydrogen storage tank 2, the charging core 111 moves toward the valve body 10, and hydrogen is input into the hydrogen storage tank 2 through the gap between the charging connector 11 and the charging core 111, thereby replenishing the hydrogen in the hydrogen storage tank 2.

[0044] Further, if Figure 5 As shown, the air inlet 101 is located at the lower end of the valve body 10, and the air inlet 101 is connected to the air outlet end of the hydrogen storage tank 2. The lower end of the valve body 10 has a threaded structure connected to the hydrogen storage tank 2, and the upper end of the valve body 10 has a threaded structure connected to the valve cover 12. The upper end of the threaded structure at the lower end of the valve body 10 is covered with a second sealing ring 103, and the second sealing ring 103 is used to seal between the valve body 10 and the hydrogen storage tank 2; Figure 4As shown, the valve cover 12 has a first threaded hole 124 and a second threaded hole 125, and the first threaded hole 124 and the second threaded hole 125 are relatively arranged on the side wall of the valve cover 12, and the valve stem nut assembly is connected to the valve cover 12 through the first threaded hole 124, and the air outlet joint 16 is connected to the valve cover 12 through the second threaded hole 125; the lower end of the valve cover 12 has a threaded structure connected to the valve body 10, and the valve cover 12 and the valve body 10 are threadedly connected; a set screw 121 is provided on the side wall of the valve cover 12, and the set screw 121 contacts the upper end of the valve body 10 after passing through the valve cover 12. Tightening the set screw 121 can fix the axial position between the valve cover 12 and the valve body 10. The setting of the set screw 121 can prevent the connection between the valve body 10 and the valve cover 12 from loosening; as shown Figure 4 and Figure 5 As shown, the valve stem nut assembly includes a valve stem 13 and a nut 14. One end of the valve stem 13 is placed in the valve cover 12, and the other end of the valve stem 13 is located outside the valve cover 12. The nut 14 fixes the valve stem 13 to the valve cover 12; a first sealing gasket 132 is embedded in one end of the valve stem 13, and a switch knob 15 is installed at the other end of the valve stem 13. The switch knob 15 can drive the valve stem 13 to rotate to adjust the relative position of the valve stem 13 and the valve cover 12. A second annular groove is provided on the outer periphery near one end of the valve stem 13, and a third sealing ring 131 is provided in the second groove; one end of the valve stem 13 is fixed to the valve cover 12. A second matching cavity 122 is formed between the valve cover 12 and the outlet connector 16, and a third matching cavity 123 is formed between the valve cover 12. A first connecting channel 126 is provided in the valve cover 12. The second matching cavity 122 and the third matching cavity 123 are connected through the first connecting channel 126. The switch knob 15 can drive the valve stem 13 to move toward the outside of the valve cover 12 to open the first connecting channel 126; and the switch knob 15 can drive the valve stem 13 to move toward the inside of the valve cover 12 and make the first sealing gasket 132 fit tightly with the sealing surface of the first connecting channel 126 to close the first connecting channel 126. By rotating the switch knob 15 to adjust the relative position of the valve stem 13 and the valve cover 12, and then adjust the size of the opening between the first sealing gasket 132 and the first connecting channel 126, the flow rate of the output hydrogen can be controlled, thereby realizing the pressure reducing function. The arrangement of the valve stem nut assembly achieves the effect of controlling the pressure while making the pressure reducing valve 1 novel, compact, and easy to operate.

[0045] The outlet connector 16 is connected to the valve cover 12 by a threaded connection. One end of the outlet connector 16 is placed in the valve cover 12, and the other end of the outlet connector 16 is located outside the valve cover 12. The outlet connector 16 is provided with an outlet hole, which is communicated with the third matching cavity 123. The plugging screw 161 blocks the outlet hole when the outlet connector 16 is not in use. A piston 17 is provided between the valve body 10 and the valve cover 12. The lower end of the piston 17 is embedded with a second sealing gasket 179. The interior of the piston 17 is hollow. Figure 6As shown, the piston 17 consists of an upper section 177 and a lower section 178, both of which are cylindrical structures. The outer diameter of the upper section 177 is larger than the outer diameter of the lower section 178, and the vertical cross-section of the internal hollow part of the upper section 177 is an inverted frustum structure, that is, the upper end of the upper section 177 is the large end of the frustum, and the lower end of the upper section 177 is the small end of the frustum; a fourth matching cavity 105 is formed between the lower end of the piston 17 and the valve body 10, and a second connecting channel 175 is provided in the valve body 10. The fourth matching cavity 105 is connected to the air inlet 101 through the second connecting channel 175, and the upper end of the piston 17 is connected to the valve cover 1 2, forming a fifth mating cavity 176, which is connected to the second mating cavity 122. The axis of the valve cover 12 and the axis of the valve body 10 are located on the same straight line, and the piston 17 can move along the axis of the valve cover 12. Movement of the piston 17 toward the valve body 10 closes the second connecting channel 175, while movement away from the valve body 10 opens the second connecting channel 175. The movement of the piston 17 can adjust the opening between the second sealing gasket 179 and the second connecting channel 175, thereby controlling the flow rate of the output hydrogen and achieving a pressure reduction function. Because the axis of the second connecting channel 175 is perpendicular to the axis of the first connecting channel 126, the hydrogen pressure is adjusted as the hydrogen flows through the first connecting channel 126 and the second connecting channel 175. A first accommodating groove 127 is provided in the lower end of the valve cover 12, and a second accommodating groove 106 is provided in the upper end of the valve body 10. The upper end of the piston 17 is placed in the first accommodating groove 127, and the lower end of the piston 17 is placed in the second accommodating groove 106; a spring 174 is sleeved on the outer side of the upper part of the lower section 178 of the piston 17, and one end of the spring 174 contacts the lower outer surface of the upper section 177 of the piston 17; a third accommodating groove 107 is also provided on the periphery of the second accommodating groove 106, and the bottom of the third accommodating groove 107 is higher than the bottom of the second accommodating groove 106, and the other end of the spring 174 contacts the bottom of the third accommodating groove 107. When the hydrogen pressure is too high, the gas pressure in the fifth mating cavity 176 exceeds the elastic force of the spring 174, causing the piston 17 to move downward along the axis of the valve cover 12, forcing the second sealing gasket 179 closer to the second connecting passage 175. This increases the volume of the gas in the fifth mating cavity 176 and hinders the output of hydrogen from the gas cylinder. When the hydrogen pressure is too low, the gas pressure in the fifth mating cavity 176 is less than the elastic force of the spring 174. The piston 17, under the action of the elastic force of the spring 174, moves upward along the axis of the valve cover 12, forcing the second sealing gasket 179 away from the second connecting passage 175. This reduces the volume of the gas in the fifth mating cavity 176 and increases the output of hydrogen from the gas cylinder.

[0046] The outer diameter of the upper section 177 is equal to the inner diameter of the first accommodating groove 127. The outer wall of the upper section 177 is provided with an annular third groove, and the fourth sealing ring 171 is provided in the third groove. The outer diameter of the lower section 178 is equal to the inner diameter of the second accommodating groove 106. The outer wall of the lower section 178 is provided with an annular fourth groove, and the fifth sealing ring 172 is provided in the fourth groove. A filter screen 173 is attached to the upper end of the piston 17, and the filter screen 173 is used to perform preliminary filtering of the discharged gas.

[0047] The device works as follows: When the user begins use, they open the lid 82 and turn on the switch knob 15 of the pressure reducing valve 1 to release the hydrogen from the hydrogen storage tank 2. The pressure gauge 9 reflects the hydrogen pressure in the hydrogen storage tank 2. If the pressure is too low, hydrogen is added to the hydrogen storage tank 2 through the charging connector 11 of the pressure reducing valve 1. After ensuring that there is sufficient hydrogen stored in the hydrogen storage tank 2, the valve 5 of the hydrogen transmission pipe 6 is opened. The hydrogen is filtered by the filter 4 and enters the air inlet of the flow meter 3 through the valve 5. After the hydrogen is increased in moisture content and further filtered for impurities by the humidifier 33, it enters the air outlet of the flow meter 3 and enters the breathing tube 7, which is directly delivered to the nasal cavity. The user can adjust the hydrogen flow rate by adjusting the valve 5 on the hydrogen transmission pipe 6. After use, the switch knob 15 of the pressure reducing valve 1 is closed, and then the valve 5 of the hydrogen transmission pipe 6 is closed. The breathing tube 7 is coiled and stored in the storage box 84.

[0048] The shoulder strap 85 is fixedly connected to the box body 81, and a box cover 82 is provided on the upper end of the protective box 8. The box cover 82 and the box body 81 are connected by a snap-fit connection to ensure that the two are tightly fixed. The cooperation between the box body 81 and the shoulder strap 85 makes it convenient to carry and use.

[0049] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0050] A solid-state hydrogen storage device for hydrogen health, which controls the flow rate of hydrogen to 100-200 mL / min and the pressure of hydrogen to within one atmosphere by adding a pressure reducing valve 1, thereby meeting the normal use requirements of a hydrogen health respirator. The flow rate of hydrogen can be intuitively displayed by a flow meter 3, and the filter 4 filters the hydrogen. The humidifier 33 in the flow meter 3 increases the moisture content of the hydrogen and further filters impurities in the hydrogen to ensure that the hydrogen meets breathing requirements. The device is easy to operate and the hydrogen absorption amount can be adjusted according to personal preference. The close fit between the box 81 and the shoulder strap 85 makes it convenient for users to carry and use the device at any time.

[0051] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A solid-state hydrogen storage device for hydrogen health, characterized in that: It includes a protective box, a hydrogen storage tank, a flow meter and a breathing tube, among which, The hydrogen storage tank, flow meter and breathing tube are all arranged in the protective box; The hydrogen storage tank stores hydrogen storage alloy, and a pressure reducing valve is provided at the bottle mouth of the hydrogen storage tank. The air inlet of the flow meter is connected to the pressure reducing valve through a hydrogen transmission pipe, and the air outlet of the flow meter is connected to the breathing tube. The pressure reducing valve comprises a valve body, a valve cover, an air charging connector, a valve stem nut assembly and an air outlet connector, wherein the valve body has an air inlet communicating with the outside, the upper end of the valve body is connected to the lower end of the valve cover, the valve stem nut assembly and the air outlet connector are both connected to the valve cover, and the air charging connector is connected to the valve body; The valve stem nut assembly includes a valve stem and a nut, one end of the valve stem is placed in the valve cover, the other end of the valve stem is located outside the valve cover, and the nut fixes the valve stem to the valve cover; A first sealing gasket is embedded in one end of the valve stem, and a switch knob is installed at the other end of the valve stem. The switch knob can drive the valve stem to rotate to adjust the relative position of the valve stem and the valve cover. A second annular groove is provided on the outer circumference near one end of the valve stem, and a third sealing ring is provided in the second groove. A second matching cavity is formed between one end of the valve stem and the valve cover, a third matching cavity is formed between the air outlet joint and the valve cover, a first connecting channel is provided in the valve cover, and the second matching cavity and the third matching cavity are communicated with each other through the first connecting channel. The switch knob can drive the valve stem to move toward the outside of the valve cover to open the first connecting channel; and The switch knob can drive the valve stem to move toward the inside of the valve cover and make the first sealing gasket fit tightly against the sealing surface of the first connecting channel, so as to close the first connecting channel; A piston is provided between the valve body and the valve cover, and a second sealing gasket is embedded in the lower end of the piston. The interior of the piston is hollow and consists of an upper section and a lower section. Both the upper section and the lower section are cylindrical structures. The outer diameter of the upper section is larger than the outer diameter of the lower section. The vertical cross-section of the hollow portion of the upper section is an inverted frustum structure, the upper end of the upper section is the large end of the frustum, and the lower end of the upper section is the small end of the frustum. A fourth mating cavity is formed between the lower end of the piston and the valve body, a second connecting channel is provided in the valve body, the fourth mating cavity is communicated with the air inlet through the second connecting channel, and a fifth mating cavity is formed between the upper end of the piston and the valve cover, the fifth mating cavity is communicated with the second mating cavity; The axis of the valve cover and the axis of the valve body are located on the same straight line, and the piston can move along the axis of the valve cover; The piston moves toward the valve body to close the second connecting channel, and the piston moves away from the valve body to open the second connecting channel.

2. The solid-state hydrogen storage device for hydrogen health according to claim 1, characterized in that: The protection box includes a box body and a box cover, the box body includes a holding box and a receiving box, one side of the holding box is connected to one side of the receiving box, a first storage hole is provided at the upper end of the holding box, and the bottle body of the hydrogen storage tank is located in the first storage hole; A second storage hole is provided at the upper end of the storage box, and the second storage hole is used to store the flow meter; The storage box is provided with a box door, and the internal space of the storage box is used to store the breathing tube; The box cover is covered on the box body, and the box cover and the box body are connected by a buckle.

3. The solid-state hydrogen storage device for hydrogen health according to claim 1, characterized in that: The hydrogen delivery pipe is a hose, and a valve is provided on the hydrogen delivery pipe. When the valve is opened, the hydrogen storage tank can deliver hydrogen to the breathing tube through the hydrogen delivery pipe.

4. The solid-state hydrogen storage device for hydrogen health according to claim 1, characterized in that: The hydrogen transmission pipe is provided with a filter, and the filter is used to filter the hydrogen flowing through the hydrogen transmission pipe.

5. The solid-state hydrogen storage device for hydrogen health according to claim 1, characterized in that: The hydrogen transmission pipe is connected to the hydrogen storage tank via a sealed interface.

6. The solid-state hydrogen storage device for hydrogen health according to claim 1, characterized in that: The flowmeter is a rotor flowmeter, comprising a housing, a float, and a conical measuring chamber. The housing is a cylindrical structure with an opening at the bottom. The upper end of the conical measuring chamber is located within the housing. The float is disposed within the conical measuring chamber and is capable of freely moving up and down along the centerline of the conical measuring chamber. The height of the float is used to determine the flow rate of hydrogen. The housing is provided with an air outlet for the flowmeter, and the upper end of the conical measuring chamber is connected to the air outlet of the flowmeter. The breathing tube is a nasal breathing tube, and the air outlet is connected to the breathing tube.

7. The solid-state hydrogen storage device for hydrogen health according to claim 6, characterized in that: The flowmeter also includes a humidifier, the upper end of the humidifier is connected to the housing, the lower end of the conical measuring chamber extends to the bottom of the humidifier, the upper end of the humidifier is provided with an air inlet of the flowmeter, pure water is stored in the humidifier, the lower end of the conical measuring chamber is located below the liquid level of the pure water in the humidifier, the air inlet of the flowmeter is connected to the hydrogen transmission pipe through a sealed interface, the humidifier can increase the moisture content of hydrogen, and the humidifier can filter impurities in the hydrogen.

8. The solid-state hydrogen storage device for hydrogen health according to claim 1, characterized in that: A pressure gauge is provided at the bottle mouth of the hydrogen storage tank, and the pressure gauge can display the pressure of the hydrogen in the hydrogen storage tank.

9. The solid-state hydrogen storage device for hydrogen health according to claim 1, characterized in that: The pressure reducing valve limits the gas flow rate to 100 mL to 200 mL per minute and the gas output pressure to below 0.1 MPa.

10. The solid-state hydrogen storage device for hydrogen health according to claim 9, characterized in that: An inflation port is also provided at the lower end of the valve body, one end of the inflation connector is placed within the valve body, and the other end of the inflation connector is located outside the valve body, and the inflation connector and the valve body are connected by a tapered thread; an inflation core is installed inside the inflation connector, and the inflation core limits the gas to flow only from the outside of the inflation connector to the inflation port; a first matching cavity is formed between the valve body and the inflation connector, and the inflation port is connected to the first matching cavity.

11. The solid-state hydrogen storage device for hydrogen health according to claim 10, characterized in that: The inflatable joint is provided with an inflatable pipe along the axial direction, and the inflatable joint is provided with a first groove, the inflatable pipe is connected to the first groove, and the diameter of the first groove is larger than the aperture of the inflatable pipe; the inflatable core includes an inflatable core seat and an inflatable core rod, the inflatable core seat is located in the first groove, one end of the inflatable core rod is connected to the inflatable core seat, and the other end of the inflatable core rod is located in the inflatable pipe, the inflatable core can move along the axial direction of the inflatable pipe, and the inflatable core rod is provided with a first sealing ring, which can seal between the inflatable core seat and the inflatable joint; The hydrogen storage tank can be replenished with hydrogen through the charging connector.

12. The solid-state hydrogen storage device for hydrogen health according to claim 9, characterized in that: The air inlet is located at the lower end of the valve body, and the air inlet is connected to the air outlet of the hydrogen storage tank. A second sealing ring is provided on the valve body, and the second sealing ring is used to seal between the valve body and the hydrogen storage tank.

13. The solid-state hydrogen storage device for hydrogen health according to claim 9, characterized in that: The valve cover has a first threaded hole and a second threaded hole, the first threaded hole and the second threaded hole are arranged opposite to each other on the side wall of the valve cover, the valve stem nut assembly is connected to the valve cover through the first threaded hole, and the air outlet joint is connected to the valve cover through the second threaded hole; The valve cover is connected to the valve body by threads; A set screw is provided on the side wall of the valve cover. The set screw passes through the valve cover and contacts the upper end of the valve body. Tightening the set screw can fix the axial position between the valve cover and the valve body.

14. The solid-state hydrogen storage device for hydrogen health according to claim 9, characterized in that: The gas outlet joint is connected to the valve cover by a threaded connection, one end of the gas outlet joint is placed inside the valve cover, and the other end of the gas outlet joint is located outside the valve cover. The air outlet connector is provided with an air outlet hole, which is communicated with the third matching cavity. The hole-blocking screw blocks the air outlet hole when the air outlet connector is not in use.

15. The solid-state hydrogen storage device for hydrogen health according to claim 1, characterized in that: A first accommodating groove is provided in the lower end of the valve cover, a second accommodating groove is provided in the upper end of the valve body, the upper end of the piston is placed in the first accommodating groove, and the lower end of the piston is placed in the second accommodating groove; A spring is sleeved on the outer side of the upper portion of the lower section of the piston, and one end of the spring is in contact with the lower outer surface of the upper section of the piston; A third accommodating groove is further provided on the periphery of the second accommodating groove, the bottom of the third accommodating groove being higher than the bottom of the second accommodating groove, and the other end of the spring contacts the bottom of the third accommodating groove; The outer diameter of the upper section is equal to the inner diameter of the first accommodating groove. The outer wall of the upper section is provided with an annular third groove, and a fourth sealing ring is provided in the third groove. The outer diameter of the lower section is equal to the inner diameter of the second accommodating groove. The outer wall of the lower section is provided with an annular fourth groove, and a fifth sealing ring is provided in the fourth groove. A filter is attached to the upper end of the piston, and the filter is used for preliminarily filtering the discharged gas.

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