A hydrogen storage cylinder with a pressure relief structure

Abstract

This utility model relates to the field of hydrogen energy storage cylinder technology, specifically a hydrogen energy storage cylinder with a pressure relief structure. It includes a cylinder body, a pressure relief assembly, and an energy recovery assembly. The energy recovery assembly includes a turbine tube, impeller blades, and a motor. A fixed shell is fixedly connected to the center of the turbine tube, and the lower surface of the fixed shell is fixedly connected to the motor. A drive shaft is rotatably connected inside the motor, passing through the fixed shell and extending to its upper surface. When the cylinder pressure is too high, the pressure relief assembly opens, allowing high-pressure hydrogen to enter the turbine tube, driving the impeller blades to rotate. The blades, through a pull rod and a fixed ring, drive the drive shaft to rotate, thus driving the motor to generate electricity and recover energy. Pulling the pull rod adjusts the blade angle, changing the hydrogen thrust effect and affecting the drive shaft speed and energy recovery efficiency. The pressure relief assembly can release excessive pressure in a timely manner, ensuring cylinder safety. Utilizing the pressure relief energy to generate electricity improves energy efficiency.

Description

Technical Field

[0001] This utility model relates to a hydrogen energy storage cylinder, and more particularly to a hydrogen energy storage cylinder with a pressure relief structure, belonging to the technical field of hydrogen energy storage cylinders. Background Technology

[0002] With the rapid development of hydrogen energy technology, hydrogen, as a clean and efficient energy source, is finding increasingly wide applications. However, ensuring safe and efficient utilization is a crucial issue during hydrogen storage.

[0003] In practical applications, hydrogen storage cylinders may face various situations that cause internal pressure to rise, such as changes in external temperature, excessively rapid hydrogen filling, or abnormal conditions during use. If the internal pressure cannot be controlled in a timely and effective manner, excessive pressure may cause the hydrogen storage cylinder to rupture or even explode, resulting in serious safety accidents and huge economic losses. Furthermore, the hydrogen gas released during depressurization contains considerable energy; if it is directly discharged without utilization, it will result in energy waste.

[0004] Therefore, there is an urgent need to improve a hydrogen energy storage cylinder with a pressure relief structure to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a hydrogen energy storage cylinder with a pressure relief structure. When the internal pressure of the cylinder is too high, the pressure relief component opens, and high-pressure hydrogen gas enters the turbine tube from the cylinder through the pressure relief component. The hydrogen gas entering the turbine tube drives the impeller blades to rotate. The rotation of the impeller blades drives the drive shaft to rotate through the pull rod and the fixing ring. The rotation of the drive shaft drives the internal components of the motor to generate electricity, realizing energy recovery. Pulling the pull rod can adjust the angle of the impeller blades, thereby changing the effect of the impeller blades receiving hydrogen thrust, further affecting the speed of the drive shaft and the energy recovery efficiency. By releasing the excessive pressure inside the cylinder in time through the pressure relief component, the danger caused by excessive pressure in the cylinder is effectively avoided, ensuring the safe use of the hydrogen energy storage cylinder. The hydrogen energy used in the pressure relief process drives the impeller blades and the motor to generate electricity, realizing energy recovery and utilization, and improving energy utilization efficiency. The design of adjusting the impeller blade angle with the pull rod allows the device to be flexibly adjusted according to different pressure conditions and energy recovery requirements.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] A hydrogen storage cylinder with a pressure relief structure includes a cylinder body, a pressure relief assembly, and an energy recovery assembly. The energy recovery assembly includes a turbine tube, impeller blades, and a motor. A fixed shell is fixedly connected to the center of the turbine tube. The lower bottom surface of the fixed shell is fixedly connected to the motor, and a drive shaft is rotatably connected inside the motor. The drive shaft passes through the fixed shell and extends to the upper surface of the fixed shell. A fixed ring is fixedly connected to the inner outer wall of the fixed shell. The lower end of the impeller blade is rotatably connected to the fixed ring, and a pull rod is rotatably connected to the upper end of the impeller blade. One end of the turbine tube is connected to the pressure relief assembly, and the other end of the pressure relief assembly is connected to the lower end of the cylinder body.

[0008] Preferably, a rotating ring is rotatably connected to the upper outer wall of the fixed ring, the lower bottom surface of the rotating ring is rotatably connected to the pull rod, and a connecting ring is fixedly connected to the upper surface of the rotating ring. One end of the connecting ring extends to the outer wall of the fixed shell, and the connecting ring is rotatably connected to the fixed shell.

[0009] Preferably, a support plate is fixedly connected to one end of the drive shaft extending outside the fixed housing, an electric telescopic rod is fixedly connected to the upper surface of the support plate, a connecting plate is hinged to the output end of the electric telescopic rod, and one end of the connecting plate is rotatably connected to the connecting ring.

[0010] Preferably, the fixed ring has an exhaust hole inside, one end of which extends to one side of the impeller blade, and the other end of which extends to the bottom surface of the fixed shell.

[0011] Preferably, the pressure relief assembly includes a pressure relief pipe, a pressure relief valve, and a connecting pipe. One end of the pressure relief pipe is connected to the lower end of the bottle body, and the other end of the pressure relief pipe is connected to one end of the pressure relief pipe. The two ends of the connecting pipe are respectively connected to the pressure relief valve and the turbine pipe.

[0012] Preferably, the pressure relief valve includes a housing and a valve core. A limiting tube is fixedly connected inside the housing. The valve core is located inside the limiting tube and is slidably connected to the limiting tube. A sealing plate is fixedly connected to the bottom surface of the limiting tube. The outer wall of the sealing plate is fixedly connected to the inner wall of the housing. A flow hole is formed on the side of the limiting tube near the connecting tube.

[0013] Preferably, a spring sheet is fixedly connected to the upper end of the valve core, the spring sheet is fixedly connected to the inside of the housing, a push plate is slidably connected to the inside of the housing, an anti-spring is provided between the push plate and the spring sheet, a push rod is rotatably connected to the upper surface of the push plate, one end of the push rod extends to the outside of the housing, and the push rod is threadedly connected to the housing.

[0014] This utility model has at least the following beneficial effects:

[0015] 1. When the internal pressure of the cylinder is too high, the pressure relief component opens, and high-pressure hydrogen gas enters the turbine tube from the cylinder through the pressure relief component. The hydrogen gas entering the turbine tube drives the impeller blades to rotate. The rotation of the impeller blades drives the drive shaft to rotate through the pull rod and the fixing ring. The rotation of the drive shaft drives the internal components of the motor to generate electricity, realizing energy recovery. Pulling the pull rod can adjust the angle of the impeller blades, thereby changing the effect of the impeller blades receiving hydrogen thrust, further affecting the speed of the drive shaft and the energy recovery efficiency. By releasing the excessive pressure inside the cylinder in time through the pressure relief component, the danger caused by excessive pressure in the cylinder is effectively avoided, ensuring the safe use of the hydrogen energy storage cylinder. The hydrogen energy used in the pressure relief process drives the impeller blades and the motor to generate electricity, realizing energy recovery and utilization, and improving energy utilization efficiency. The design of adjusting the impeller blade angle with the pull rod allows the device to be flexibly adjusted according to different pressure conditions and energy recovery requirements.

[0016] 2. When the pressure in the bottle increases, the gas acts on the valve core, causing it to overcome the elastic force of the contact spring and the spring plate, and move upward within the limiting tube. When the valve core moves upward, it causes the spring plate to deform and compresses the contact spring. After the valve core moves upward, the flow hole opens, allowing gas to pass through, thus opening the pressure relief valve. By adjusting the compression degree of the contact spring with the push rod, the opening pressure of the pressure relief valve can be precisely set to adapt to different working requirements. The sealing structure formed by the valve core and the sealing plate effectively prevents gas from passing through when the valve core is closed, ensuring the sealing performance of the pressure relief valve and guaranteeing system safety. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 A three-dimensional schematic diagram provided for this utility model;

[0019] Figure 2 Provided by this utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle;

[0020] Figure 3 Partial cross-sectional schematic diagram provided for this utility model Figure 1 ;

[0021] Figure 4 Provided by this utility model Figure 3 A magnified schematic diagram of the structure at point B in the middle;

[0022] Figure 5 Partial cross-sectional schematic diagram provided for this utility model Figure 2 ;

[0023] Figure 6 Provided by this utility model Figure 5 A magnified schematic diagram of the structure at point C;

[0024] Figure 7 This is a magnified structural diagram of some components provided by this utility model;

[0025] Figure 8 Provided by this utility model Figure 7 A magnified schematic diagram of the structure at point D.

[0026] In the diagram, 1. Bottle body; 2. Pressure relief assembly; 3. Energy recovery assembly; 4. Turbine tube; 5. Impeller blade; 6. Motor; 7. Fixed shell; 8. Drive shaft; 9. Fixed ring; 10. Tie rod; 21. Rotary ring; 22. Connecting ring; 31. Support plate; 32. Electric telescopic rod; 33. Connecting plate; 41. Exhaust port; 51. Pressure relief pipe; 52. Pressure relief valve; 53. Connecting pipe; 61. Outer shell; 62. Valve core; 63. Limiting pipe; 64. Sealing plate; 65. Flow hole; 71. Spring; 72. Push plate; 73. Contact spring; 74. Push rod. Detailed Implementation

[0027] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0028] like Figures 1-8As shown, this embodiment provides a hydrogen storage cylinder with a pressure relief structure, including a cylinder body 1, a pressure relief component 2, and an energy recovery component 3. The cylinder body 1 stores hydrogen gas. The pressure relief component 2 opens when the pressure in the cylinder body 1 is too high, releasing hydrogen gas, reducing the internal pressure, and ensuring safety. The energy recovery component 3 includes a turbine tube 4, impeller blades 5, and a motor 6. A fixed shell 7 is fixedly connected to the center of the turbine tube 4. The turbine tube 4 receives hydrogen gas from the pressure relief component 2. The hydrogen gas is guided by the turbine tube 4 to the interior of the fixed shell 7. The bottom surface of the fixed shell 7 is fixedly connected to the motor 6, and a drive shaft 8 is rotatably connected inside the motor 6. The drive shaft 8 rotates inside the motor 6 to generate electricity. The drive shaft 8 passes through the fixed shell 7 and extends to... On the upper surface of the fixed shell 7, the drive shaft 8 is located inside the outer wall of the fixed shell 7 and is fixedly connected to the fixed ring 9. The lower end of the impeller blade 5 is rotatably connected to the fixed ring 9, and the upper end of the impeller blade 5 is rotatably connected to the pull rod 10. One end of the turbine tube 4 is connected to the pressure relief assembly 2, and the other end of the pressure relief assembly 2 is connected to the lower end of the bottle body 1. The impeller blade 5 rotates under the push of hydrogen, converting the kinetic energy of hydrogen into mechanical energy, and drives the drive shaft 8 to rotate through the pull rod 10 and the fixed ring 9. While keeping the fixed ring 9 at different positions, the pull rod 10 is pulled to adjust the angle of the impeller blade 5. The angle adjustment changes the energy conversion efficiency, thereby affecting the rotation speed and energy transfer effect of the impeller blade 5 under the action of hydrogen.

[0029] Furthermore, such as Figures 1-8 As shown, a rotating ring 21 is rotatably connected to the upper outer wall of the fixed ring 9. The lower bottom surface of the rotating ring 21 is rotatably connected to the pull rod 10. By rotating the rotating ring 21, the pull rod 10 is moved, thereby changing the angle of the impeller blade 5. A connecting ring 22 is fixedly connected to the upper surface of the rotating ring 21. One end of the connecting ring 22 extends to the outer wall of the fixed shell 7, and the connecting ring 22 is rotatably connected to the fixed shell 7. The connecting ring 22 connects the rotating ring 21 to an external operating component so as to control the rotation of the rotating ring 21 from the outside.

[0030] Among them, such as Figures 1-8 As shown, a support plate 31 is fixedly connected to one end of the drive shaft 8 extending to the outside of the fixed housing 7. An electric telescopic rod 32 is fixedly connected to the upper surface of the support plate 31. The support plate 31 provides a position for the electric telescopic rod 32 to be installed and fixed. A connecting plate 33 is hinged to the output end of the electric telescopic rod 32. One end of the connecting plate 33 is rotatably connected to the connecting ring 22. The electric telescopic rod 32 receives a control signal to extend and retract, and generates thrust or pull through the extension and retraction movement. The movement of its output end drives the connecting plate 33 to move, and the connecting plate 33 drives the connecting ring 22 to rotate.

[0031] Among them, such as Figures 1-8As shown, the fixed ring 9 has an exhaust hole 41 inside. One end of the exhaust hole 41 extends to one side of the impeller blade 5, and the other end extends to the bottom surface of the fixed shell 7. During the rotation of the impeller blade 5, the gas is discharged in time through the exhaust hole 41, which helps to improve the working efficiency and stability of the impeller blade 5 and reduce the adverse effects on the energy recovery component 3 caused by gas accumulation or uneven pressure.

[0032] Among them, such as Figures 1-8 As shown, the pressure relief assembly 2 includes a pressure relief pipe 51, a pressure relief valve 52, and a connecting pipe 53. One end of the pressure relief pipe 51 is connected to the lower end of the bottle body 1, and the other end of the pressure relief pipe 51 is connected to one end of the pressure relief pipe 51. When the pressure in the bottle body 1 exceeds the threshold, the high-pressure gas flows through the pressure relief pipe 51 to the pressure relief valve 52. Whether to open the valve depends on the internal pressure of the bottle body 1. When the valve is opened, the gas is allowed to pass through the connecting pipe 53. The two ends of the connecting pipe 53 are connected to the pressure relief valve 52 and the turbine pipe 4, respectively. The connecting pipe 53 transmits the gas that has passed through the pressure relief valve 52 to the turbine pipe 4, providing a power source for the turbine pipe 4.

[0033] Among them, such as Figures 1-8 As shown, the pressure relief valve 52 includes a housing 61 and a valve core 62. The housing 61 provides space for the installation and protection of other components of the pressure relief valve 52, forming an integral structural frame. A limit tube 63 is fixedly connected inside the housing 61. The valve core 62 is located inside the limit tube 63 and is slidably connected to the limit tube 63. The limit tube 63 is relatively fixed, restricting the valve core 62 to slide only inside it. The valve core 62 controls the opening and closing of the pressure relief valve 52 by sliding within the limit tube 63. The pressure is regulated. A sealing plate 64 is fixedly connected to the bottom surface of the limiting tube 63. The outer wall of the sealing plate 64 is fixedly connected to the inner wall of the outer shell 61. A flow hole 65 is provided on the side of the limiting tube 63 near the connecting tube 53. The sealing plate 64 cooperates with the valve core 62 to form a sealing structure. When the valve core 62 is closed, it prevents gas from passing through and ensures the sealing of the pressure relief valve 52. When the valve core 62 moves upward and the pressure relief valve 52 is opened, it provides a passage for gas to pass through, allowing gas to flow from the limiting tube 63 to the connecting tube 53.

[0034] Furthermore, such as Figures 1-8As shown, a spring plate 71 is fixedly connected to the upper end of the valve core 62. The spring plate 71 is fixedly connected to the inside of the outer shell 61. The spring plate 71 deforms as the valve core 62 moves up and down. A push plate 72 is slidably connected inside the outer shell 61. An abutment spring 73 is provided between the push plate 72 and the spring plate 71. When the push plate 72 slides down, it compresses the abutment spring 73. The elastic force of the compressed spring presses the spring plate 71 down to produce deformation. A push rod 74 is rotatably connected to the upper surface of the push plate 72. One end of the push rod 74 extends to the outside of the outer shell 61 and is threadedly connected to the outer shell 61. By rotating the push rod 74, the compression degree of the internal spring can be adjusted, thereby setting the opening pressure of the pressure relief valve 52.

[0035] like Figures 1-8 As shown, the principle of a hydrogen storage cylinder with a pressure relief structure provided in this embodiment is as follows: The hydrogen storage cylinder normally stores hydrogen gas, the pressure relief valve 52 is in the closed state, the impeller blades 5 are stationary, and the electric telescopic rod 32, push rod 74 and other components are in the initial position. When the hydrogen pressure in the cylinder exceeds the set safety threshold, the high-pressure gas enters the pressure relief valve 52 from the lower end of the cylinder body 1 through the pressure relief pipe 51. The gas pressure acts on the valve core 62, causing it to overcome the resistance of the spring 71 and the contact spring 73 and move upward in the limiting tube 63. After the valve core 62 moves upward, the gas enters the connecting pipe 53 through the flow hole 65. The high-pressure gas coming out of the connecting pipe 53 enters the turbine pipe 4, driving the impeller blades 5 to rotate. The rotation of the impeller blades 5 drives the drive shaft 8 to rotate through the pull rod 10 and the fixed ring 9, generating electricity through the motor 6. The electric telescopic rod 32 receives the control signal and extends and retracts, driving the pull rod 10 through the connecting plate 33, the connecting ring 22 and the rotating ring 21, thereby adjusting the angle of the impeller blades 5. When the pressure inside the bottle drops below the set value, the valve core 62 resets under the action of the spring 71 and the abutment spring 73, and cooperates with the sealing plate 64 to close the pressure relief valve 52, stopping the pressure relief.

[0036] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0037] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0038] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A hydrogen energy storage cylinder with a pressure relief structure, comprising a cylinder body (1), a pressure relief assembly (2), and an energy recovery assembly (3), characterized in that: The energy recovery assembly (3) includes a turbine tube (4), impeller blades (5) and a motor (6). A fixed shell (7) is fixedly connected to the center of the turbine tube (4). The bottom surface of the fixed shell (7) is fixedly connected to the motor (6). A drive shaft (8) is rotatably connected inside the motor (6). The drive shaft (8) passes through the fixed shell (7) and extends to the upper surface of the fixed shell (7). A fixed ring (9) is fixedly connected to the inner outer wall of the fixed shell (7). The lower end of the impeller blade (5) is rotatably connected to the fixed ring (9). A pull rod (10) is rotatably connected to the upper end of the impeller blade (5). One end of the turbine tube (4) is connected to the pressure relief assembly (2). The other end of the pressure relief assembly (2) is connected to the lower end of the bottle body (1).

2. A hydrogen energy storage cylinder with a pressure relief structure according to claim 1, characterized in that: The upper outer wall of the fixed ring (9) is rotatably connected to a rotating ring (21). The bottom surface of the rotating ring (21) is rotatably connected to the pull rod (10). A connecting ring (22) is fixedly connected to the upper surface of the rotating ring (21). One end of the connecting ring (22) extends to the outer wall of the fixed shell (7). The connecting ring (22) is rotatably connected to the fixed shell (7).

3. A hydrogen energy storage cylinder with a pressure relief structure according to claim 2, characterized in that: The drive shaft (8) extends to one end of the fixed housing (7) and is fixedly connected to a support plate (31). An electric telescopic rod (32) is fixedly connected to the upper surface of the support plate (31). A connecting plate (33) is hinged to the output end of the electric telescopic rod (32). One end of the connecting plate (33) is rotatably connected to the connecting ring (22).

4. A hydrogen energy storage cylinder with a pressure relief structure according to claim 1, characterized in that: The fixed ring (9) has an exhaust hole (41) inside. One end of the exhaust hole (41) extends to one side of the impeller blade (5), and the other end of the exhaust hole (41) extends to the bottom surface of the fixed shell (7).

5. A hydrogen energy storage cylinder with a pressure relief structure according to claim 1, characterized in that: The pressure relief assembly (2) includes a pressure relief pipe (51), a pressure relief valve (52), and a connecting pipe (53). One end of the pressure relief pipe (51) is connected to the lower end of the bottle body (1), and the other end of the pressure relief pipe (51) is connected to one end of the pressure relief pipe (51). The two ends of the connecting pipe (53) are connected to the pressure relief valve (52) and the turbine pipe (4), respectively.

6. A hydrogen energy storage cylinder with a pressure relief structure according to claim 5, characterized in that: The pressure relief valve (52) includes a housing (61) and a valve core (62). A limiting tube (63) is fixedly connected inside the housing (61). The valve core (62) is located inside the limiting tube (63) and is slidably connected to the limiting tube (63). A sealing plate (64) is fixedly connected to the bottom surface of the limiting tube (63). The outer wall of the sealing plate (64) is fixedly connected to the inner wall of the housing (61). A flow hole (65) is formed on the side of the limiting tube (63) near the connecting tube (53).

7. A hydrogen energy storage cylinder with a pressure relief structure according to claim 6, characterized in that: A spring sheet (71) is fixedly connected to the upper end of the valve core (62). The spring sheet (71) is fixedly connected to the inside of the outer shell (61). A push plate (72) is slidably connected inside the outer shell (61). An abutment spring (73) is provided between the push plate (72) and the spring sheet (71). A push rod (74) is rotatably connected to the upper surface of the push plate (72). One end of the push rod (74) extends to the outside of the outer shell (61), and the push rod (74) is threadedly connected to the outer shell (61).

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