An integrated hydrogen fuel cell hydrogen storage and supply system

Abstract

The present invention relates to the technical field of hydrogen fuel cells, and in particular to an integrated hydrogen fuel cell hydrogen storage and supply system; comprising: a fixed conduction module, which is provided with an intake chamber for introducing low-pressure hydrogen, and the internal space of the intake chamber is divided into a first chamber and a second chamber by a partition; a movable conduction module, which is coaxially movably arranged at the outlet end of the fixed conduction module; an injection module, which is coaxially arranged at the inlet end of the fixed conduction module, and the injection module is provided with a nozzle capable of introducing high-pressure hydrogen and the nozzle is axially movable along the axis of the fixed conduction module; a pressure monitoring module, which is arranged at the air inlet end of the nozzle and is used to detect the injection pressure of the nozzle; the present invention can not only self-adjust the injection pressure according to different hydrogen transmission states, but also effectively remove water molecules in the injected hydrogen.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen fuel cells, and in particular to an integrated hydrogen fuel cell hydrogen storage and supply system. Background Art

[0002] With the rapid development of green energy technology, hydrogen fuel cells are gradually becoming an important source of power for new energy vehicles, portable power supplies, drones and other fields due to their advantages such as high energy density, clean emissions and long endurance. In particular, integrated hydrogen fuel cell systems, because they efficiently integrate hydrogen storage, hydrogen supply, control and energy conversion modules into one, not only significantly improve the volume utilization of the system, but also effectively reduce assembly complexity and energy loss in the transmission path, and gradually become an important direction for the miniaturization and modular design of hydrogen energy systems.

[0003] In an integrated hydrogen fuel cell system, the ejector, as a key hydrogen supply component, is mainly responsible for introducing the hydrogen released from the high-pressure hydrogen storage tank into the fuel cell stack and recovering the incompletely reacted hydrogen for reuse. However, in actual operation, due to energy-saving control, operating condition adjustment or insufficient hydrogen surplus, when the transmission equipment is in a low-pressure transmission state, the kinetic energy of the hydrogen generated by the injection module decreases significantly, resulting in insufficient negative pressure formed inside the suction structure, which in turn causes the suction force of the suction chamber to be low, and is unable to effectively inhale the external hydrogen to be recovered, seriously affecting the recovery efficiency and the closed-loop hydrogen supply capacity of the system.

[0004] This low-pressure transmission state typically occurs during the low-power operation phase of small fuel cell platforms such as drones and portable devices, or at the end of the hydrogen source pressure decay, when the system automatically enters low-power operation mode. In this state, the ejection capability of the nozzle is significantly weakened. If the suction chamber structure is not responsively adjusted, unreacted hydrogen can easily be trapped, discharged, or leaked, increasing fuel waste and posing a significant safety hazard.

[0005] In addition, unreacted hydrogen often contains a large number of water molecules. If it is directly introduced into the fuel cell without being effectively removed, it will affect the battery reaction efficiency, cause fluctuations in electrochemical performance, and even cause internal water accumulation and short circuit. Summary of the Invention

[0006] To address the above problems, an integrated hydrogen fuel cell hydrogen storage and supply system is provided, which proposes a system that can not only flexibly adjust the suction pressure in the suction chamber when hydrogen is conducted at low pressure, but also effectively remove water molecules in the hydrogen that has not fully reacted.

[0007] To solve the problems of the prior art, the present invention provides an integrated hydrogen fuel cell hydrogen storage and supply system, comprising: a fixed conduction module, which is provided with an intake chamber for introducing low-pressure hydrogen, and the internal space of the intake chamber is divided into a first chamber and a second chamber by a partition; a through hole is also coaxially opened on the partition; a movable conduction module, which is coaxially movably arranged at the outlet end of the fixed conduction module; a transmission channel for the outlet of mixed hydrogen is also opened in the movable conduction module; when the movable conduction module axially approaches the partition, the space in the second chamber decreases, and vice versa, it increases; an injection module, which is coaxially arranged at the inlet end of the fixed conduction module, the injection module is provided with a nozzle capable of conducting high-pressure hydrogen and the nozzle can move axially along the axis of the fixed conduction module; when the nozzle passes through the through hole and is placed in the first chamber, the hydrogen is in a high-pressure outlet state, and when the nozzle is placed in the second chamber, the hydrogen is in a low-pressure outlet state; a pressure monitoring module, which is arranged at the air inlet end of the nozzle and is used to detect the injection pressure of the nozzle.

[0008] Preferably, the movable conduction module further includes an injection pipe capable of spraying out the hydrogen mixture and an adjustment unit capable of adjusting the injection position of the injection pipe; the injection pipe is coaxially arranged at the outlet end of the fixed conduction module through the adjustment unit.

[0009] Preferably, the injection pipe is composed of a receiving pipe section, a mixing pipe section and a diffuser pipe section which are coaxially connected in sequence; an annular groove and a sealing ring embedded in the annular groove are coaxially opened on the outside of the receiving pipe section.

[0010] Preferably, the adjustment unit is provided with a guide rod capable of guiding the axial sliding of the spray pipe, a guide frame capable of guiding the directional movement of the guide rod, and a first linear drive capable of driving the guide rod to slide along the guide frame.

[0011] Preferably, the adjustment unit further includes a locking knob capable of locking the injection pipe and the fixed conduction module; the locking knob is radially threadedly arranged outside the fixed conduction module and passes through the fixed conduction module to abut against the outer wall of the injection pipe.

[0012] Preferably, the fixed conduction module also includes an air duct capable of conducting low-pressure hydrogen and a first joint and a second joint radially arranged outside the air duct for connecting to external low-pressure hydrogen; the air duct is a hollow cylindrical shell with open ends, and its internal space constitutes a transmission channel; the partition is coaxially fixed in the air duct and is arranged near the outlet end of the air duct; the first joint and the second joint are radially arranged on one side of the fixed conduction module and are respectively connected to the first chamber and the second chamber.

[0013] Preferably, solenoid valves are coaxially fixedly disposed in the first connector and the second connector, respectively.

[0014] Preferably, the fixed conduction module further includes a drying chamber capable of absorbing water molecules in hydrogen; the drying chamber is horizontally arranged under the fixed conduction module and is connected to the first connector and the second connector respectively.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention realizes how to freely conduct high-pressure or low-pressure hydrogen according to the conduction requirements through the coordination of the movable conduction module, the fixed conduction module and the injection module; and how to ensure that the suction chamber still has a high ejection capacity under the low-pressure conduction state; thus solving the technical problem of the traditional structure relying on the continuous high-pressure nozzle.

[0017] 2. The present invention adopts a drying chamber structure with a multi-stage moisture-absorbing sheet to efficiently adsorb moisture in recycled hydrogen, ensuring that the hydrogen has good purity before re-entering the battery reaction; improving the hydrogen purity and battery reaction efficiency, avoiding the impact of moisture on battery performance; and reducing performance degradation and safety hazards caused by residual moisture, meeting the system operation requirements of high safety and high energy efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of an integrated hydrogen fuel cell hydrogen storage and supply system.

[0019] Figure 2 This is a side view of an integrated hydrogen fuel cell hydrogen storage and supply system Figure 1 .

[0020] Figure 3 This is a side view of an integrated hydrogen fuel cell hydrogen storage and supply system Figure 2 .

[0021] Figure 4 yes Figure 3 Cross-sectional view at AA.

[0022] Figure 5 yes Figure 4 A partial enlarged view of point B.

[0023] Figure 6 yes Figure 4 A partial enlarged view of point C.

[0024] Figure 7 It is an exploded perspective diagram of an integrated hydrogen fuel cell hydrogen storage and supply system.

[0025] Figure 8It is a partially exploded three-dimensional diagram of the structure of an integrated hydrogen fuel cell hydrogen storage and supply system without the drying chamber.

[0026] Figure 9 It is a top view of an integrated hydrogen fuel cell hydrogen storage and supply system.

[0027] Figure 10 yes Figure 9 A three-dimensional cross-sectional view of the section at DD.

[0028] The numbers in the figure are:

[0029] 1-Fixed conduction module; 11-Transmission channel; 12-Air guide tube; 13-First connector; 14-Second connector; 15-Solenoid valve; 16-Drying chamber;

[0030] 2 - movable conduction module; 21 - first chamber; 22 - second chamber; 23 - partition; 24 - injection pipe; 241 - receiving pipe section; 242 - mixing pipe section; 243 - diffuser pipe section; 244 - sealing ring; 25 - adjustment unit; 251 - guide rod; 252 - guide frame; 253 - first linear actuator; 254 - locking knob;

[0031] 3-injection module; 31-spray head; 32-second linear drive;

[0032] 4-Pressure monitoring module. DETAILED DESCRIPTION

[0033] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] See also Figures 1 to 10As shown: An integrated hydrogen fuel cell hydrogen storage and supply system, comprising: a fixed conduction module 1, which is provided with an intake chamber for introducing low-pressure hydrogen, and the internal space of the intake chamber is divided into a first chamber 21 and a second chamber 22 by a partition 23; the partition 23 is also coaxially penetrated with a through hole; a movable conduction module 2, which is coaxially movably arranged at the outlet end of the fixed conduction module 1; the movable conduction module 2 is also provided with a transmission channel 11 for the mixed hydrogen to be discharged; when the movable conduction module 2 is axially close to the partition 23, the space in the second chamber 22 is decreases, and vice versa increases; an injection module 3 is coaxially arranged at the inlet end of the fixed conduction module 1, and the injection module 3 is provided with a nozzle 31 capable of conducting hydrogen at high pressure, and the nozzle 31 can move axially along the axis of the fixed conduction module 1; when the nozzle 31 is placed in the first chamber 21, the hydrogen is in a high-pressure conduction state, and when the nozzle 31 is placed in the second chamber 22 through the through hole, the hydrogen is in a low-pressure conduction state; a pressure monitoring module 4 is arranged at the air inlet end of the nozzle 31, and is used to detect the injection pressure of the nozzle 31.

[0035] When hydrogen needs to be injected, the injection module 3 is first driven to operate, so that the hydrogen is directed to be injected into the fixed conduction module 1 in a high-pressure form through the nozzle 31 to achieve initial high-pressure transmission. During this process, the high-speed and high-pressure hydrogen flow injected by the nozzle 31 forms an obvious negative pressure area and low pressure area in the fixed conduction module 1 downstream thereof, thereby triggering the suction effect, so that the unreacted hydrogen in the suction chamber is sucked in and guided into the diffusion path, mixed with the mainstream hydrogen flow, and the injection and recovery and reuse functions of hydrogen are realized.

[0036] In the initial transmission state, the nozzle 31 is disposed within the first chamber 21, and the inlet end of the movable conduction module 2 is closely attached to the partition 23, forming an initially closed structure to ensure that the ejection effect is concentrated within the first conduction path. When the system reaches a certain stage of operation, the injection pressure within the nozzle 31 is fed back to a low pressure state via the pressure detection module. To maintain the ejection effect, the movable conduction module 2 automatically slides axially away from the partition 23, exposing the second chamber 22. Simultaneously, the nozzle 31 passes through a through hole defined in the partition 23 and enters the second chamber 22. The diameter of the through hole is slightly larger than that of the nozzle 31, and a sealing ring is embedded in the inner wall of the through hole to ensure that the contact surface remains sealed after the nozzle 31 passes through. This structural change enables dynamic adjustment of the internal volume of the second chamber 22, thereby enhancing the suction capacity of the low-pressure zone. This ensures that even when the nozzle 31 output is at a low pressure, unreacted hydrogen in the suction chamber is effectively attracted and introduced into the main conduction path for mixing and transmission.

[0037] Furthermore, in order to adapt to the changes in the demand for suction negative pressure intensity under different working conditions, the system can continue to drive the movable conduction module 2 to move closer to or away from the partition 23 in the axial direction, thereby achieving fine adjustment of the internal area of ​​the second chamber 22. By dynamically adjusting the suction area in the second chamber 22, the injection intensity and mixing efficiency can be effectively optimized, thereby improving the system's adaptability under different working pressures.

[0038] The injection module 3 also includes a second linear drive 32 capable of driving the nozzle 31 to slide axially along the axis of the fixed conduction module 1. The second linear drive 32 in the figure is only for schematic purposes and is used to drive the nozzle 31 to adjust axially within the fixed conduction module 1.

[0039] Through the coordinated coordination of the pressure change of the nozzle 31 and the area adjustment of the first chamber 21 and the second chamber 22, a hydrogen injection effect with attraction ability under low pressure is achieved, breaking through the technical problem of the traditional injection structure's reliance on the nozzle 31 for continuous high pressure; the sliding design of the movable conduction module 2 makes the injection efficiency adjustable, enhancing the adaptability of the system under different reaction efficiencies and residual hydrogen concentrations; it achieves efficient recovery and reuse of unreacted hydrogen, reduces hydrogen loss, improves fuel utilization, and effectively reduces safety risks.

[0040] See also Figure 1 and Figure 2 As shown, the movable conduction module 2 further includes an injection pipe 24 capable of spraying out the hydrogen mixture and an adjustment unit 25 capable of adjusting the injection position of the injection pipe 24; the injection pipe 24 is coaxially arranged at the outlet end of the fixed conduction module 1 through the adjustment unit 25.

[0041] When hydrogen is in a transmission state, especially in a low-pressure transmission state, in order to ensure that the hydrogen that has not fully reacted can be continuously ejected and recovered, the relative position between the injection pipe 24 and the partition 23 in the injection channel needs to be flexibly adjusted to change the effective suction area in the second chamber 22 and optimize the low-pressure suction effect. At this time, the adjustment unit 25 is driven to operate so that the injection pipe 24 can be controllably displaced axially relative to the partition 23. When the operator or the system detection module determines that it is necessary to adjust to a specific suction area, the injection pipe 24 can be moved axially along the set trajectory by controlling the adjustment unit 25, and after the injection pipe 24 moves to the target position, it is precisely fixed at the preset position by the adjustment unit 25, thereby realizing adjustable control of the suction area, thereby meeting the hydrogen injection requirements under different working conditions.

[0042] By providing an adjustable injection pipe 24 position adjustment mechanism, the suction area in the second chamber 22 has dynamic adjustment capabilities, thereby improving the adaptive performance of the hydrogen injection process under low-pressure conditions; this structure enhances the injection efficiency of insufficiently reacted hydrogen under different working conditions, improves fuel utilization and ensures stable operation of the system.

[0043] See also Figure 7 As shown, the injection pipe 24 is composed of a receiving pipe section 241, a mixing pipe section 242 and a diffuser pipe section 243 which are coaxially connected in sequence; the receiving pipe section 241 is also coaxially provided with an annular groove and a sealing ring 244 embedded in the annular groove.

[0044] During the hydrogen transmission process, in order to improve the system's adaptability to transmission states under different working conditions, such as high-pressure transmission, low-pressure injection, etc., the injection position of the injection pipe 24 needs to be axially adjusted according to the real-time working conditions to achieve dynamic optimization of the injection position and the injection path. In order to ensure that the system sealing performance of the injection pipe 24 is not affected during the axial adjustment process, the sealing ring 244 embedded in the receiving pipe section 241 can continuously maintain a close fit between the injection pipe 24 and the inner wall of the transmission channel 11 during the movement of the injection pipe 24, thereby effectively preventing hydrogen leakage and ensuring that the pipeline system still maintains high sealing and operational safety under dynamic adjustment.

[0045] By providing an external embedded sealing ring 244 in the receiving pipe section 241, efficient sealing of the injection pipe 24 is achieved during dynamic axial adjustment, thereby improving the system's adaptability to hydrogen pressure fluctuations; effectively avoiding the risk of hydrogen leakage during the adjustment process, and enhancing system safety.

[0046] 7 : the adjustment unit 25 is provided with a guide rod 251 capable of guiding the axial sliding of the injection pipe 24 , a guide frame 252 capable of guiding the directional movement of the guide rod 251 , and a first linear drive 253 capable of driving the guide rod 251 to slide along the guide frame 252 .

[0047] The guide frame 252 is coaxially fixed outside the fixed conduction module 1; the guide rod 251 is fixed in a horizontal state outside the diffuser pipe section 243 through a fixed frame, and the rod section of the guide rod 251 is set through the guide frame 252 and slides with the guide frame 252; the axis of the guide rod 251 is set parallel to the axial direction of the injection pipe 24; the first linear drive 253 is fixed on one side of the guide frame 252 and the driving end is fixedly connected to the guide rod 251.

[0048] When it is necessary to drive the injection tube 24 to slide axially along the axis of the fixed conduction module 1, firstly, an external power supply is connected to drive the first linear driver 253 to operate. The first linear driver 253 is specifically an electric push rod. The output shaft of the first linear driver 253 extends to drive the guide rod 251 to slide along the guide direction of the guide frame 252, thereby achieving the effect of axially driving the injection tube 24 to slide in the second chamber 22 while synchronously adjusting the internal area of ​​the second chamber 22.

[0049] See also Figure 8 As shown: the adjustment unit 25 also includes a locking knob 254 capable of locking the injection pipe 24 and the fixed conduction module 1; the locking knob 254 is radially threadedly arranged outside the fixed conduction module 1 and passes through the fixed conduction module 1 to abut against the outer wall of the injection pipe 24.

[0050] When there is no need to adjust the injection position of the injection pipe 24 so that it is always in a fixed injection position, the staff only needs to turn the locking knob 254 to make it pass through the fixed conduction module 1 and radially approach the injection pipe 24; until it is fixedly abutted against the outer wall of the injection pipe 24; the effect of continuously limiting the injection position of the injection pipe 24 can be achieved.

[0051] See also Figure 5 and Figure 8 As shown: the fixed conduction module 1 also includes an air duct 12 capable of conducting low-pressure hydrogen and a first joint 13 and a second joint 14 radially arranged outside the air duct 12 for connecting external low-pressure hydrogen; the air duct 12 is a hollow cylindrical shell with open ends, and its internal space constitutes a transmission channel 11; the partition 23 is coaxially fixedly arranged in the air duct 12 and is arranged near the outlet end of the air duct 12; the first joint 13 and the second joint 14 are radially arranged on one side of the fixed conduction module 1 and are respectively connected to the first chamber 21 and the second chamber 22.

[0052] During the process of injecting high-pressure hydrogen into the movable conductive module 2 through the nozzle 31, the high-speed hydrogen flow produces a Venturi effect inside the air duct 12 (i.e., when the gas passes through a narrow section of the pipe, the cross-sectional area decreases, the flow rate increases, and the pressure decreases), thereby forming a significant negative pressure area inside the air duct 12. This negative pressure area can automatically suck the external low-pressure hydrogen at the first connector 13 or the second connector 14 connected to the air duct 12, so that the hydrogen originally in a low-pressure state is quickly sucked into the air duct 12, thereby realizing the automatic suction and recovery of the low-pressure hydrogen driven by the high-pressure hydrogen injection, and improving the efficiency of the injection system in recycling the remaining hydrogen resources.

[0053] See also Figure 6 As shown, a solenoid valve 15 is coaxially fixedly disposed in the first connector 13 and the second connector 14 .

[0054] By fixing independently controllable solenoid valve 15 components inside the first connector 13 and the second connector 14, the opening and closing states of each connector can be precisely controlled according to the system operating state; when the first chamber 21 is used to transmit hydrogen, the control system drives the solenoid valve 15 in the second connector 14 to remain in a closed state, thereby cutting off the gas channel of the second chamber 22 and its connected pipeline, effectively preventing hydrogen backflow, cross flow or leakage in non-working channels due to changes in internal system pressure.

[0055] See also Figure 6 and Figure 7 As shown, the fixed conduction module 1 further includes a drying chamber 16 capable of absorbing water molecules in hydrogen; the drying chamber 16 is horizontally arranged under the fixed conduction module 1 and is connected to the first joint 13 and the second joint 14 respectively.

[0056] The drying chamber 16 is specifically a hollow rectangular shell structure, in which multiple groups of moisture-absorbing sheets are arranged in sequence along the gas flow direction. The moisture-absorbing sheets are made of solid porous materials with strong moisture absorption properties, such as silica gel, molecular sieve or modified activated alumina material, which is used to efficiently absorb trace moisture in hydrogen.

[0057] When the unreacted hydrogen from the outside is conducted into the drying chamber 16 through the pipeline, the hydrogen gas flow passes through the desiccant sheet in turn, and in the process completes the physical adsorption and fixation of the entrained water molecules, thereby significantly reducing the moisture content. The desiccant sheet structure is designed to be replaceable or recyclable, ensuring the stability and economy of the system in long-term operation, thereby improving the purity of the hydrogen entering the fuel cell and improving the reaction efficiency.

[0058] By providing a moisture-absorbing sheet with high moisture absorption capacity, water molecules in incompletely reacted hydrogen can be efficiently removed, thereby improving hydrogen purity and reaction efficiency. The multi-stage adsorption design of the drying chamber 16 enhances the system's ability to handle wet hydrogen, ensuring that the hydrogen is in a dry state before entering the reaction chamber, avoiding battery performance degradation or abnormal reactions caused by moisture.

[0059] The present invention can not only self-regulate the injection pressure according to different hydrogen transmission states, but also effectively remove water molecules in the injected hydrogen.

[0060] The above embodiments merely represent one or more embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An integrated hydrogen fuel cell hydrogen storage and supply system, characterized in that: include: The fixed conduction module is provided with an intake chamber for introducing low-pressure hydrogen, and the internal space of the intake chamber is divided into a first chamber and a second chamber by a partition; the partition is also coaxially provided with a through hole; A movable conduction module is coaxially movably disposed at the outlet end of the fixed conduction module; a transmission channel for the mixed hydrogen gas is further provided in the movable conduction module; when the movable conduction module axially approaches the partition, the space in the second chamber decreases, and vice versa; an injection module coaxially disposed at the inlet end of the fixed conduction module, the injection module being provided with a nozzle capable of discharging hydrogen at high pressure, and the nozzle being axially movable along the axis of the fixed conduction module; when the nozzle is placed in the first chamber, the hydrogen is discharged at high pressure, and when the nozzle is placed through the through hole in the second chamber, the hydrogen is discharged at low pressure; A pressure monitoring module is provided at the air inlet end of the nozzle, and is used to detect the injection pressure of the nozzle; the movable conduction module also includes an injection pipe capable of injecting the hydrogen mixture and an adjustment unit capable of adjusting the injection position of the injection pipe; The injection pipe is coaxially arranged at the outlet end of the fixed conduction module through the adjustment unit; The fixed conduction module further includes an air pipe capable of conducting low-pressure hydrogen and a first connector and a second connector radially arranged outside the air pipe for receiving external low-pressure hydrogen; The air guide tube is a hollow cylindrical shell with open ends, and its internal space constitutes a transmission channel; The partition is coaxially fixedly arranged in the air duct and is arranged close to the outlet end of the air duct; The first connector and the second connector are radially disposed on one side of the fixed conductive module and are communicated with the first chamber and the second chamber respectively.

2. The integrated hydrogen fuel cell hydrogen storage and supply system according to claim 1, characterized in that: The injection pipe is composed of a receiving pipe section, a mixing pipe section and a diffuser pipe section which are coaxially connected in sequence; An annular groove and a sealing ring embedded in the annular groove are coaxially formed on the outside of the receiving pipe section.

3. The integrated hydrogen fuel cell hydrogen storage and supply system according to claim 1, characterized in that: The adjusting unit is provided with a guide rod capable of guiding the axial sliding of the spray pipe, a guide frame capable of guiding the directional movement of the guide rod, and a first linear drive capable of driving the guide rod to slide along the guide frame.

4. The integrated hydrogen fuel cell hydrogen storage and supply system according to claim 3, characterized in that: The adjustment unit further includes a locking knob capable of locking the injection pipe and the fixed conduction module; The locking knob is radially threadedly arranged outside the fixed conduction module and passes through the fixed conduction module to abut against the outer wall of the injection pipe.

5. The integrated hydrogen fuel cell hydrogen storage and supply system according to claim 1, characterized in that: Solenoid valves are coaxially fixedly disposed in the first connector and the second connector, respectively.

6. The integrated hydrogen fuel cell hydrogen storage and supply system according to claim 1, characterized in that: The fixed conduction module also includes a drying chamber capable of absorbing water molecules in hydrogen; The drying chamber is horizontally arranged below the fixed conduction module and is communicated with the first connector and the second connector respectively.

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