Rapid recovery extractor for hydrogen-rich gas
By combining components such as high-permeability membranes and planetary reduction gear sets, efficient hydrogen recovery in industrial applications has been achieved, solving the problems of hydrogen resource waste and environmental pollution, and improving hydrogen separation efficiency and recovery speed.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG WOHYDRIN BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-21
AI Technical Summary
In the industrial sector, the treatment of hydrogen-rich waste gases or byproducts leads to the waste of hydrogen resources and energy, and causes environmental pollution.
A rapid hydrogen recovery extractor is employed, utilizing components such as a high-permeability membrane and a planetary reduction gear set to achieve efficient hydrogen recovery through a pressurization and separation process. The extractor consists of a combination of components such as a support frame, extraction tank, arched frame, solenoid valve, and motor, forming an upper and lower chamber structure. It utilizes pressure difference and mechanical transmission to improve separation efficiency.
It improves the utilization rate of hydrogen resources, reduces environmental pollution, achieves efficient separation and recovery of hydrogen, and enhances the separation speed.
Smart Images

Figure CN224141840U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydrogen recovery technology, and in particular to a rapid hydrogen-rich gas recovery and extraction device. Background Technology
[0002] In the process of hydrogen-rich gas recovery and extraction, efficient and accurate separation and enrichment of hydrogen are crucial to ensuring high gas purity and stable equipment operation. In practical applications, recovery extractors typically require the following technologies:
[0003] 1. Separation mechanisms: such as membrane separation components, which allow hydrogen to pass through the membrane preferentially based on the difference in the dissolution and diffusion rates of each component of the mixed gas in the polymer membrane to achieve separation; and pressure swing adsorption devices, which use the different adsorption capacities of adsorbents for different gases under different pressures to separate hydrogen from other gases.
[0004] 2. Purification mechanism: such as chemical absorption tower, which removes impurities by chemically reacting with specific reagents; catalytic reaction device, which uses catalyst to convert impurities into easily separable substances, thereby improving the purity of hydrogen.
[0005] 3. Collection and transportation mechanisms: such as gas compressors, which pressurize, separate, and purify hydrogen-rich gas for storage and transportation, and pipeline transportation systems are responsible for safely and smoothly delivering the gas to storage containers or subsequent equipment.
[0006] In industrial sectors, such as the petrochemical industry, waste gases or byproducts containing hydrogen are generated. Currently, the treatment and utilization processes for these gases mostly adopt the following two methods: one is to introduce hydrogen-rich gas into the high-pressure gas pipeline network as fuel for combustion, and the other is to introduce hydrogen-rich gas into the low-pressure gas system for direct combustion and discharge via high-altitude flare. Such treatment methods not only cause a double waste of hydrogen resources and energy, but also cause great pollution to the environment. Utility Model Content
[0007] To address the shortcomings of existing technologies, this invention provides a rapid hydrogen-rich gas recovery and extraction device. This solves the problem that in industrial sectors, such as the petrochemical industry, hydrogen-containing waste gases or byproducts are generated. Currently, these gas treatment measures and utilization processes mostly employ two methods: one is to introduce the hydrogen-rich gas into a high-pressure gas pipeline network as fuel for combustion; the other is to introduce the hydrogen-rich gas into a low-pressure gas system for direct high-altitude flare combustion and discharge. Such treatment methods not only result in a double waste of hydrogen resources and energy but also cause significant environmental pollution.
[0008] To achieve the above objectives, this utility model provides the following technical solution:
[0009] A rapid hydrogen-rich gas recovery extractor includes a support frame, an extraction tank fixedly mounted on the support frame, an arched frame for pressure distribution fixedly mounted inside the extraction tank, high-permeability membranes for hydrogen separation evenly fixedly mounted on the arched frame, a solenoid valve fixedly mounted on the support frame, a pressurization pipe fixedly mounted at the top of the support frame, a pressure gauge fixedly mounted on the extraction tank, a valve housing mounted on the pressurization pipe, a valve core slidably mounted inside the valve housing, a first sealing sleeve fixedly mounted on the valve core, a spring mounted on the valve core, a piston slidably mounted inside the pressurization pipe, a second sealing sleeve fixedly mounted on the piston, and the arched frame and high-permeability membrane divide the interior of the support frame into upper and lower chambers.
[0010] Preferably, a motor is fixedly installed on the support frame.
[0011] Preferably, a planetary reduction gear set is fixedly installed on the support frame.
[0012] Preferably, a transmission disc is fixedly mounted on the output shaft of the planetary reduction gear set.
[0013] Preferably, a convex rod is slidably mounted on the transmission disc.
[0014] Preferably, a threaded rod is rotatably mounted on the transmission disc; the threaded rod and the lead rod are threadedly connected.
[0015] Preferably, a transmission rod is rotatably mounted on the protruding rod; the transmission rod and the piston are rotatably connected.
[0016] Preferably, a coupling is fixedly installed between the output shaft of the motor and the input shaft of the planetary reduction gear set.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] 1. The hydrogen-rich mixed gas enters the pressurization pipe through the valve shell, and then enters the upper chamber of the extraction tank through the valve shell at the bottom of the pressurization pipe. During this process, the gas is pushed open by the gas delivery mechanism, causing the valve core to slide to the side against the spring force. At this time, the gas can pass through. As the gas continues to enter the upper chamber of the extraction tank, the pressure will continuously increase. When the pressure in the upper chamber of the extraction tank is greater than the spring force, it will push the valve core upward, causing the valve core to reset and seal through the first sealing sleeve. At this time, the hydrogen in the mixed gas will pass through the high-permeability membrane into the lower chamber of the extraction tank, while the remaining gas will remain in the upper chamber of the extraction tank. During this process, the pressure shown on the pressure gauge will increase with the injection of the mixed gas and then decrease with the filtration and discharge of hydrogen. When the pressure shown on the pressure gauge tends to stabilize, it indicates that no more hydrogen is being discharged, and the filtration and extraction of hydrogen is completed, achieving the effect of improving resource utilization and reducing environmental pollution.
[0019] 2. The motor drives the input shaft of the planetary reduction gear set to rotate via a coupling. The planetary reduction gear set increases the torque output of the motor, which in turn drives the transmission disc to rotate. During rotation, the transmission disc drives the cam to move in a circular motion around its axis. The cam pulls the piston up and down via the transmission rod. When the piston slides down, it pushes the gas inside the pressurization tube towards the upper chamber of the extraction tank, further increasing the pressure inside the upper chamber. During this process, the external valve shell is closed, allowing gas to enter only the extraction tank. When the piston slides up, the valve shell at the bottom of the pressurization tube closes, while the external valve shell opens, allowing the mixed gas to enter. This greatly increases the pressure in the upper chamber of the extraction tank, creating a huge pressure difference across the high-permeability membrane. This not only improves the separation effect but also accelerates the separation speed, thus enhancing the extraction effect. Attached Figure Description
[0020] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0021] Figure 1 This is a structural diagram of the support frame of this utility model;
[0022] Figure 2 This is a structural diagram of the extraction tank of this utility model;
[0023] Figure 3 This is a cross-sectional structural diagram of the extraction tank of this utility model;
[0024] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;
[0025] Figure 5 This is a structural diagram of the planetary reduction gear set of this utility model;
[0026] Figure 6 This is a cross-sectional view of the pressurization pipe of this utility model.
[0027] Legend: 1. Support frame; 2. Extraction tank; 21. Arched frame; 22. High-permeability membrane; 3. Solenoid valve; 4. Pressurization pipe; 5. Pressure gauge; 6. Valve housing; 7. Valve core; 8. First sealing sleeve; 9. Spring; 11. Piston; 12. Second sealing sleeve; 13. Motor; 14. Planetary reduction gear set; 15. Transmission disc; 16. Protruding rod; 17. Threaded rod; 18. Transmission rod; 19. Coupling. Detailed Implementation
[0028] This application provides a rapid hydrogen-rich gas recovery and extraction device, effectively solving the problem of hydrogen-containing waste gas or byproducts generated in industrial fields such as the petrochemical industry. Currently, these gas treatment measures and utilization processes mostly adopt the following two methods: one is to let the hydrogen-rich gas enter the high-pressure gas pipeline network as fuel for combustion; the other is to let the hydrogen-rich gas enter the low-pressure gas system for direct high-altitude flare combustion and discharge. Such treatment methods not only cause a double waste of hydrogen resources and energy, but also cause great pollution to the environment. The hydrogen-rich mixed gas will enter the fuel system along the valve shell. The gas enters the upper chamber of the extraction tank through the pressure tube and then flows through the valve shell at the bottom of the pressure tube. During this process, the gas, driven by the gas delivery mechanism, pushes open the valve core, causing it to slide to the side against the spring force. Gas can then pass through. As more gas enters the upper chamber of the extraction tank, the pressure increases. When the pressure exceeds the spring force, the valve core is pushed upwards, resetting and sealing through the first sealing sleeve. At this point, hydrogen in the mixed gas passes through the high-permeability membrane into the lower chamber of the extraction tank, while the remaining gas remains in the upper chamber. The pressure gauge reading will increase as the mixed gas is injected, and then decrease as hydrogen is filtered out. When the pressure gauge reading stabilizes, it indicates that no more hydrogen is being released, completing the hydrogen filtration and extraction process. This achieves the effect of improving resource utilization and reducing environmental pollution. The motor will drive the input shaft of the planetary reduction gear set to rotate via the coupling. The planetary reduction gear set will increase the torque output of the motor. After the torque is increased, the planetary reduction gear set will drive the transmission disc to rotate. During the rotation of the transmission disc, it will drive the cam to make a circular motion around the axis of the transmission disc. The cam will pull through the transmission rod. As the piston slides up and down, it pushes the gas inside the pressurizing tube towards the upper chamber of the extraction tank, further increasing the pressure inside the upper chamber. During this process, the external valve is closed, allowing gas to enter only the extraction tank. When the piston slides up, the valve at the bottom of the pressurizing tube closes, while the external valve opens, allowing the mixed gas to enter. This significantly increases the pressure in the upper chamber of the extraction tank, creating a large pressure difference across the high-permeability membrane. This not only improves the separation effect but also accelerates the separation speed, thus enhancing the extraction effect. Example
[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the technical solution in this application effectively solves the problem that in industrial fields, such as the petrochemical industry, waste gas or byproducts containing hydrogen are generated. Currently, these gas treatment measures and utilization processes mostly adopt the following two methods: one is to let hydrogen-rich gas enter the high-pressure gas pipeline network as fuel for combustion; the other is to let hydrogen-rich gas enter the low-pressure gas system for direct high-altitude flare combustion and discharge. Such treatment methods not only cause a double waste of hydrogen resources and energy, but also cause great pollution to the environment. The overall idea is as follows:
[0030] To address the problems existing in the prior art, this utility model provides a rapid hydrogen-rich gas recovery extractor, including a support frame 1, an extraction tank 2 fixedly installed on the support frame 1, an arched frame 21 for pressure distribution fixedly installed inside the extraction tank 2, a high-permeability membrane 22 for hydrogen separation evenly fixedly installed on the arched frame 21, a solenoid valve 3 fixedly installed on the support frame 1, a pressurization pipe 4 for pressurization fixedly installed at the top of the support frame 1, and a pressure gauge 5 fixedly installed on the extraction tank 2.
[0031] A valve housing 6 is installed on the pressurizing pipe 4. A valve core 7 is slidably installed inside the valve housing 6. A first sealing sleeve 8 is fixedly installed on the valve core 7. A spring 9 is installed on the valve core 7. A piston 11 is slidably installed inside the pressurizing pipe 4. A second sealing sleeve 12 is fixedly installed on the piston 11. An arched frame 21 and a high-permeability membrane 22 divide the interior of the support frame 1 into upper and lower chambers. A motor 13 is fixedly installed on the support frame 1. A planetary reduction gear set 14 is fixedly installed on the support frame 1.
[0032] A transmission disc 15 is fixedly mounted on the output shaft of the planetary reduction gear set 14. A protruding rod 16 is slidably mounted on the transmission disc 15. A threaded rod 17 is rotatably mounted on the transmission disc 15. The threaded rod 17 and the protruding rod 16 are threadedly connected. A transmission rod 18 is rotatably mounted on the protruding rod 16. The transmission rod 18 is rotatably connected to the piston 11. A coupling 19 is fixedly mounted between the output shaft of the motor 13 and the input shaft of the planetary reduction gear set 14.
[0033] Support frame 1: Overall support and integration. As the main structure of the hydrogen-rich gas rapid recovery and extraction device, it provides the installation foundation for other components, integrates various functional components together, and makes the whole device form an organic whole to jointly complete the task of hydrogen-rich gas recovery and extraction.
[0034] Extraction tank 2: Chamber construction and gas processing, fixedly installed on support frame 1. The interior is divided into upper and lower chambers by arched frame 21 and high-permeability membrane 22. The upper chamber is used to receive and temporarily store hydrogen-rich mixed gas and perform hydrogen separation operation under pressure. The lower chamber is used to collect hydrogen separated through high-permeability membrane 22. At the same time, its bottom end is connected to the collection mechanism, which is responsible for transporting the separated hydrogen out.
[0035] Arched frame 21: Pressure homogenization, hemispherical in shape, fixed inside the extraction tank 2. Its function is to evenly distribute the pressure of the mixed gas entering the upper chamber of the extraction tank 2, while increasing the contact area between the high-permeability membrane 22 and the mixed gas. This helps to create a stable and uniform pressure environment for the high-permeability membrane 22, ensuring that the high-permeability membrane 22 can perform hydrogen separation more efficiently and stably, and avoiding the separation effect caused by excessively high or low local pressure.
[0036] High-permeability membrane 22: The core of hydrogen separation, uniformly fixed on the arched frame 21. Based on specific physical principles (based on the selective permeability of the membrane), it realizes the separation of hydrogen from other gases in the mixed gas, allowing hydrogen to pass through itself into the lower chamber of the extraction tank 2, while the remaining gas is trapped in the upper chamber. It is a key component for realizing the recovery and extraction of hydrogen-rich gas.
[0037] Solenoid valve 3: Non-hydrogen emission control, fixed on support frame 1, connected to discharge pipe. When hydrogen separation is completed and it is determined that no more hydrogen is being discharged (according to the pressure shown by pressure gauge 5, the pressure tends to stabilize), solenoid valve 3 is opened to discharge other gases remaining in the upper chamber of extraction tank 2, thus completing the entire gas separation process.
[0038] Pressurization tube 4: Gas pressurization, fixed at the top of the support frame 1, pressurizes the incoming hydrogen-rich mixed gas, increases the gas pressure, helps to push the mixed gas into the upper chamber of the extraction tank 2, and assists in establishing a pressure difference in the subsequent process to promote hydrogen separation. At the same time, it works with other internal components to control the flow of gas and pressure changes.
[0039] Valve housing 6: Gas guidance and flow switching. Installed on the pressurization pipe 4, it serves as a gas inlet channel, guiding the hydrogen-rich mixed gas from the external gas delivery mechanism into the pressurization pipe 4, and then into the upper chamber of the extraction tank 2. At the same time, it works with components such as piston 11 to realize the dynamic switching of the gas flow path. For example, when piston 11 slides down, the external valve housing 6 is closed, allowing gas to enter only the interior of the extraction tank 2; when piston 11 slides up, the external valve housing 6 is opened, allowing the mixed gas to enter the pressurization pipe 4, thereby controlling the rhythm and direction of gas entry.
[0040] Valve core 7: Gas flow control valve, which is slidably installed inside the valve body 6. It controls the flow of gas under the dual action of gas pressure and spring force 9. When the mixed gas enters under the push of the gas delivery mechanism, the valve core 7 slides to the side against the spring force 9, allowing the gas to pass through. When the pressure in the upper chamber of the extraction tank 2 increases to exceed the spring force 9, the valve core 7 returns to its original position and is sealed by the first sealing sleeve 8 to prevent the gas from continuing to enter, thus achieving precise control of the gas entering the upper chamber of the extraction tank 2.
[0041] First sealing sleeve 8: sealing guarantee, fixed on valve core 7. When valve core 7 is reset, the first sealing sleeve 8 plays a sealing role to prevent gas from continuing to flow in when it is not necessary to enter the upper chamber of extraction tank 2, ensuring that the gas separation process proceeds according to the predetermined process and avoiding gas leakage from affecting the separation effect.
[0042] Spring 9: A spring force control element, installed on valve core 7, providing spring force to valve core 7. Through interaction with gas pressure, it precisely controls the sliding and resetting actions of valve core 7, thereby controlling the timing and flow rate of gas entering the upper chamber of extraction tank 2. It is an important component for realizing automatic control of gas flow.
[0043] Piston 11: Slidingly installed inside the pressurizing tube 4, it slides up and down by the pull of the protruding rod 16 and the transmission rod 18. When sliding down, it pushes the gas inside the pressurizing tube 4 to the upper chamber of the extraction tank 2, further increasing the internal pressure of the upper chamber of the extraction tank 2. When sliding up, it cooperates with the opening and closing of the valve shell 6 to control the mixed gas to enter the pressurizing tube 4. By changing the gas pressure and flow between the pressurizing tube 4 and the upper chamber of the extraction tank 2, the separation effect of hydrogen is enhanced.
[0044] Second sealing sleeve 12: Used for sealing, filling the gap between the pressurization tube 4 and the piston 11 to prevent gas leakage when the piston 11 slides down.
[0045] Motor 13: Power source, fixed on support frame 1. After starting, it serves as the power source for the entire pressure enhancement system. It drives the input shaft of planetary reduction gear set 14 to rotate through coupling 19, providing initial power for a series of subsequent actions to increase pressure and enhance separation effect.
[0046] Planetary reduction gear set 14: Fixed on the support frame 1, its input shaft is connected to the motor 13 through the coupling 19. Its main function is to increase the torque output of the motor 13 and transmit the enhanced torque to the transmission plate 15, so that the subsequent components can obtain a stronger and more stable driving force to effectively increase the pressure of the upper chamber of the extraction tank 2.
[0047] Transmission disc 15: Fixed on the output shaft of planetary reduction gear set 14, it rotates under the drive of planetary reduction gear set 14. During the rotation, it drives the cam 16 to make circular motion around its own axis, realizing the conversion from rotational motion to circular motion, and providing the necessary motion form conversion for pulling the piston 11 to slide up and down.
[0048] The protruding rod 16 is slidably mounted on the transmission disc 15. When it makes a circular motion around the axis of the transmission disc 15, it pulls the piston 11 up and down through the transmission rod 18. This not only converts the circular motion of the transmission disc 15 into the vertical linear motion of the piston 11, but also allows for a certain degree of adjustment of the movement amplitude and position of the piston 11 by sliding on the transmission disc 15, thereby precisely controlling the pressure regulation of the gas in the pressurization pipe 4.
[0049] Threaded rod 17: Fine adjustment component: Rotatably mounted on transmission disc 15 and threadedly connected to protruding rod 16; Through threaded engagement, the position, movement amplitude and speed of protruding rod 16 in circumferential motion can be finely adjusted, thereby more accurately controlling the up and down sliding stroke, frequency and rhythm of piston 11, realizing precise control of gas pressure regulation, so as to meet the requirements of hydrogen separation effect under different working conditions.
[0050] Transmission rod 18: Rotatably mounted on the protruding rod 16 and rotatably connected to the piston 11, responsible for smoothly transmitting the movement of the protruding rod 16 to the piston 11, ensuring that the piston 11 can accurately follow the movement of the protruding rod 16 to slide up and down, ensuring the smooth realization of pressure regulation action, and is an important connecting component in the motion transmission process;
[0051] Coupling 19: It is fixedly installed between the output shaft of the motor 13 and the input shaft of the planetary reduction gear set 14. It is used to stably and accurately transmit the power output by the motor 13 to the planetary reduction gear set 14, ensuring the stability and synchronization of the power transmission process, so that the planetary reduction gear set 14 can rotate normally and increase the torque under the drive of the motor 13.
[0052] Working principle:
[0053] The first step involves connecting the external valve housing 6 to the gas delivery mechanism, connecting the pipe at the bottom of the extraction tank 2 to the collection mechanism, and connecting the solenoid valve 3 to the discharge pipe. During operation, a hydrogen-rich mixed gas will enter the pressurization pipe 4 along the valve housing 6, and then enter the upper chamber of the extraction tank 2 along the valve housing 6 at the bottom of the pressurization pipe 4. During this process, the gas, pushed by the gas delivery mechanism, will open the valve core 7, causing it to slide to the side against the spring force of the spring 9. At this point, the gas can pass through. As the gas continuously enters, the pressure in the upper chamber of the extraction tank 2 will continuously increase. When the pressure in the upper chamber of the extraction tank 2 exceeds the pressure of the spring 9... When the spring is applied, it will push the valve core 7 upward, causing the valve core 7 to reset and seal through the first sealing sleeve 8. At this time, the hydrogen in the mixed gas will pass through the high-permeability membrane 22 and enter the lower chamber of the extraction tank 2, while the remaining gas will remain in the upper chamber of the extraction tank 2. During this process, the pressure displayed by the pressure gauge 5 will increase as the mixed gas is injected and then decrease as the hydrogen is filtered and discharged. When the pressure displayed by the pressure gauge 5 tends to stabilize, it indicates that no more hydrogen is being discharged, and the solenoid valve 3 can be opened to allow other gases to be discharged, thus completing the filtration and extraction of hydrogen and achieving the effect of improving resource utilization and reducing environmental pollution.
[0054] In the second step, during use, motor 13 starts and drives the input shaft of planetary reduction gear set 14 to rotate via coupling 19. Planetary reduction gear set 14 increases the torque output of motor 13. After increasing the torque, planetary reduction gear set 14 drives transmission disc 15 to rotate. During the rotation of transmission disc 15, it drives cam 16 to move in a circular motion around the axis of transmission disc 15. Cam 16 pulls piston 11 up and down via transmission rod 18. When piston 11 slides down, it pushes the gas inside pressurization pipe 4 towards the lifting point. The upper chamber of extraction tank 2 is opened, further increasing the pressure inside the upper chamber of extraction tank 2. During this process, the external valve shell 6 will not be open, allowing gas to enter only the extraction tank 2. When the piston 11 slides upward, the valve shell 6 at the bottom of the pressurization tube 4 will close, and the external valve shell 6 will open, allowing the mixed gas to enter. This greatly increases the pressure in the upper chamber of extraction tank 2, creating a huge pressure difference across the high-permeability membrane 22. This not only improves the separation effect but also accelerates the separation speed, thus enhancing the extraction effect.
[0055] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A hydrogen-rich gas rapid recovery extractor comprising a support frame (1), characterized in that, The support frame (1) is fixedly installed with an extraction tank (2), the inside of the extraction tank (2) is fixedly installed with an arch-shaped frame (21) for pressure distribution, the arch-shaped frame (21) is uniformly fixedly installed with a high-transparency membrane (22) for separating hydrogen, the support frame (1) is fixedly installed with a solenoid valve (3), the top end of the support frame (1) is fixedly installed with a pressurizing pipe (4) for pressurization, the extraction tank (2) is fixedly installed with a pressure gauge (5), the pressurizing pipe (4) is installed with a valve housing (6), the inside of the valve housing (6) is slidingly installed with a valve core (7), the valve core (7) is fixedly installed with a first sealing sleeve (8), the valve core (7) is installed with a spring (9), the inside of the pressurizing pipe (4) is slidingly installed with a piston (11), the piston (11) is fixedly installed with a second sealing sleeve (12).
2. A hydrogen-rich gas rapid recovery extractor as claimed in claim 1, wherein, The support frame (1) is fixedly installed with a motor (13).
3. A hydrogen-rich gas rapid recovery extractor as claimed in claim 1, wherein, The support frame (1) is fixedly installed with a planetary reduction gear set (14).
4. A hydrogen-rich gas rapid recovery extractor as claimed in claim 3, wherein, The output shaft of the planetary reduction gear set (14) is fixedly installed with a transmission disc (15).
5. A hydrogen-rich gas rapid recovery extractor as claimed in claim 4, wherein, The transmission disc (15) is slidingly installed with a convex rod (16).
6. A hydrogen-rich gas rapid recovery extractor as claimed in claim 4, wherein, The transmission disc (15) is rotatably installed with a threaded rod (17). Wherein, the threaded rod (17) and the convex rod (16) are threadedly connected.
7. A hydrogen-rich gas rapid recovery extractor as claimed in claim 5, wherein, The convex rod (16) is rotatably installed with a transmission rod (18). Wherein, the transmission rod (18) and the piston (11) are rotatably connected.
8. A hydrogen-rich gas rapid recovery extractor as claimed in claim 2, wherein, The output shaft of the motor (13) and the input shaft of the planetary reduction gear set (14) are fixedly installed with a shaft coupling (19).