Hydrogen discharging device of electrolytic bath and working method of hydrogen discharging device

Abstract

The invention relates to the technical field of electrolysis equipment, and discloses an electrolytic bath hydrogen discharging device and a working method thereof.The electrolytic bath hydrogen discharging device comprises an operation table, an electrolysis box is arranged on one side of the upper surface of the operation table, a gas collecting hood is arranged in the electrolysis box, a gas collecting pipe is arranged at the top end of the gas collecting hood, and a second filter pipe is arranged at one end of the gas collecting pipe; first filter pipes are arranged at the two ends of the second filter pipe, a purity detector is arranged on the outer wall of the second filter pipe, and a plurality of first butterfly valves are arranged in the second filter pipe. Efficient hydrogen collection is achieved through the electrolytic cell hydrogen discharging device, hydrogen accumulation is reduced through the gas collecting hood and the gas collecting pipe, and normal operation of the electrolytic cell is guaranteed; filtering channels can be flexibly switched, the hydrogen flow can be accurately adjusted, various impurities are removed by means of multi-stage filtering and drying, high-purity dry hydrogen is obtained to meet the requirements of different application scenes, and the use efficiency of equipment is improved. The problem that the hydrogen purification purity does not reach the standard is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrolysis equipment, in particular to an electrolytic cell hydrogen discharge device and a working method thereof. Background Art

[0002] The use of hydrogen is becoming increasingly widespread in many industrial fields and emerging technological application scenarios. For example, in chemical synthesis, semiconductor manufacturing in the electronics industry, fuel cells and other fields, there are extremely strict requirements for the purity of hydrogen. However, traditional electrolyzer hydrogen discharge devices have many limitations in hydrogen purification. In the process of hydrogen filtration and purification, most traditional devices only use a single filtration method or a simple filtration combination, such as relying solely on physical barriers to remove large particles of impurities, which are not effective in removing common trace impurity gases in hydrogen (such as oxygen, chlorine, etc.) and water vapor. These impurity gases and water vapor will enter the subsequent use links along with the hydrogen, making it difficult for the final hydrogen purity to reach the high purity standards required for semiconductor manufacturing, such as 99.999% or above, or fuel cell applications. Moreover, traditional filtration devices are prone to clogging and decreased adsorption performance after long-term operation, and lack convenient and effective maintenance measures, which further leads to unstable hydrogen purification effects and the inability to continuously guarantee high-purity hydrogen output. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention provides an electrolytic cell hydrogen discharge device and a working method thereof, which solves the problem of substandard hydrogen purification purity.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a hydrogen discharge device for an electrolytic cell, comprising an operating table, an electrolytic box is provided on one side of the upper surface of the operating table, an air collecting hood is provided inside the electrolytic box, a gas collecting pipe is provided on the top of the gas collecting hood, one end of the gas collecting pipe is provided with a filter tube 2, both ends of the filter tube 2 are provided with filter tube 1, the outer wall of the filter tube 2 is provided with a purity detector, a plurality of butterfly valves 1 are provided inside the filter tube 2, the bottom end of the butterfly valve 1 passes through the filter tube 2 and is provided with a connecting rod 1, the outer wall of the connecting rod 1 is provided with a reversing mechanism, the outer wall of the filter tube 1 is provided with a filter tube 3, the inner wall of the filter tube 3 is provided with a plurality of butterfly valves 2, the top of the butterfly valve 2 is provided at the bottom end of the connecting rod 1, the interior of the filter tube 1 is provided with a separation membrane, the bottom end of the separation membrane is provided with a silica gel drying tube, and the bottom end of the silica gel drying tube is provided at the bottom end of the inner wall of the filter tube 1.

[0005] By adopting the above technical solution, the gas collection hood and the gas collection pipe can work together to efficiently collect hydrogen, reduce accumulation and ensure continuous operation of the electrolyzer, and have a multi-stage purification system composed of a butterfly valve, a separation membrane and a silicone drying tube, which can accurately adjust the flow rate and deeply purify the hydrogen. The filter channel switching and online maintenance can also be achieved through the reversing mechanism, reducing downtime and lowering operation and maintenance costs. At the same time, the purity detector can monitor the hydrogen quality in real time. In addition, the modular design facilitates upgrades and expansions, and can flexibly adapt to different application scenarios.

[0006] Preferably, the reversing mechanism includes a second fixed rod, one end of which is arranged on the outer wall of the first connecting rod, a handle is provided on the upper surface of one of the second fixed rods, a rotating shaft is provided at one end of the second fixed rod, and the outer wall of the rotating shaft is provided with the second connecting rod.

[0007] Preferably, an exhaust fan is provided on the upper surface of the operating table, a hydrogen delivery pipe 2 is fixedly provided at the input end of the exhaust fan, one end of the hydrogen delivery pipe 2 is provided on the outer wall of the filter tube 3, and a hydrogen delivery pipe 3 is fixedly provided at the output end of the exhaust fan, one end of the hydrogen delivery pipe 3 is provided with a gas heat exchange mechanism.

[0008] Preferably, the gas heat exchange mechanism includes a gas heat exchange tank, the bottom end of the outer wall of the gas heat exchange tank is arranged at one end of the hydrogen transmission pipe three, a cooling pipe is arranged inside the gas heat exchange tank, the top end of the cooling pipe is provided with a connecting pipe two, the bottom end of the cooling pipe is provided with a liquid transmission pipe, and the bottom end of the gas heat exchange tank is arranged on the upper surface of the operating table.

[0009] Preferably, a pump is provided on the upper surface of the operating table, a connecting pipe 1 is fixedly provided at the input end of the pump, a liquid storage box is provided at one end of the connecting pipe 1, and the bottom end of the liquid storage box is provided on the upper surface of the operating table.

[0010] Preferably, the output end of the pump is fixedly arranged at the bottom end of the cooling pipe, a hydrogen transmission pipe 1 is arranged at the top of the gas heat exchange tank, a hydrogen storage tank is arranged at one end of the hydrogen transmission pipe 1, and a flow sensor is arranged on the outer wall of the hydrogen transmission pipe 1.

[0011] Preferably, a plurality of legs are provided on the lower surface of the operating table, a fixing rod 1 is provided on one side of the legs, and a universal wheel is provided at the bottom end of the legs.

[0012] A method for operating an electrolytic cell hydrogen discharge device, used for the electrolytic cell hydrogen discharge device, comprises the following steps:

[0013] S1. Hydrogen collection: The electrolytic box generates hydrogen during operation. The hydrogen is collected by the gas collecting hood inside the electrolytic box and enters the filter tube 2 through the gas collecting pipe.

[0014] S2. Preliminary hydrogen filtration and purity testing: After hydrogen enters filter tube 2, the reversing mechanism operates butterfly valve 1 to adjust the hydrogen flow and perform preliminary impurity blocking. At the same time, the purity tester detects the hydrogen purity in real time.

[0015] S3. Hydrogen deep filtration and drying: Hydrogen flows from filter tube 2 into filter tube 1, is separated from impurities by a separation membrane, and then passes through a silica gel drying tube to absorb water vapor for drying;

[0016] S4. Hydrogen transportation: The filtered and dried hydrogen enters the hydrogen transmission pipe 2 through the filter pipe 3. The exhaust fan draws the hydrogen from the hydrogen transmission pipe 2 into the hydrogen transmission pipe 3 and transports it to the gas heat exchange tank;

[0017] S5. Gas heat exchange: The pump extracts coolant from the liquid storage box and pumps it into the cooling pipe through the connecting pipe 1 and the liquid infusion pipe. After the hydrogen enters the gas heat exchange tank, it exchanges heat with the coolant in the cooling pipe to cool down.

[0018] S6. Hydrogen storage: The cooled hydrogen enters the hydrogen storage tank through the hydrogen transmission pipe 1 for storage, and the flow sensor monitors the hydrogen flow in real time;

[0019] S7. Equipment movement and fixation: When the equipment needs to be moved, use the universal wheel to push the device, and fix the universal wheel with the wheel brake after reaching the position.

[0020] Working Principle: Hydrogen generated within the electrolytic cell naturally rises to the gas collection hood due to density differences. Using the principles of fluid mechanics, it is then introduced into filter tube two through the gas collection pipe. During the initial filtration phase, the operator rotates the reversing mechanism handle, which drives butterfly valve one through a four-bar mechanism consisting of fixed rod two, connecting rod one, a rotating shaft, and connecting rod two. This achieves flow regulation and physical interception of large impurities. Simultaneously, a purity detector monitors hydrogen purity in real time based on spectroscopy or electrochemistry. During the deep filtration phase, the separation membrane separates impurity gases based on the microporous screening effect and differences in the diffusion rate of gas molecules. The silica gel drying tube removes water vapor through physical adsorption of the porous material.

[0021] Hydrogen delivery is powered by an exhaust fan, overcoming pipeline resistance based on fluid pressure differentials. Hydrogen enters the gas-to-gas heat exchange tank via hydrogen delivery pipe 3. The gas-to-gas heat exchange mechanism uses a pump to circulate the coolant, which flows from the reservoir through connecting pipe 1 and the delivery pipe into the cooling pipe. Leveraging the high thermal conductivity of copper or stainless steel, heat transfer is achieved between the hydrogen and the coolant through heat conduction. The cooled hydrogen enters the hydrogen storage tank via hydrogen delivery pipe 1, where a flow sensor provides real-time flow data based on differential pressure or thermal measurement principles.

[0022] The equipment's movement and fixation are achieved through a mechanical structure, with universal wheels utilizing bearings for multi-directional rolling motion. The entire process utilizes the synergistic effects of physical mechanical transmission, fluid mechanics, heat exchange principles, and material adsorption properties to achieve efficient hydrogen collection, purification, cooling, and storage.

[0023] The present invention provides an electrolyzer hydrogen discharge device and a working method thereof, which have the following beneficial effects:

[0024] 1. This invention achieves efficient hydrogen collection through an electrolyzer hydrogen discharge device. A rationally designed gas collection hood and collection pipe reduce hydrogen accumulation, ensuring the normal operation of the electrolyzer. It can flexibly switch filtration channels, precisely adjust the hydrogen flow rate, and remove various impurities through multi-stage filtration and drying, producing high-purity, dry hydrogen to meet the requirements of different application scenarios. It also features easy maintenance, allowing the filter components to be disassembled and maintained without shutting down the machine, reducing costs, extending service life, and improving equipment efficiency. This solves the problem of substandard hydrogen purification purity and addresses the inconvenient maintenance of traditional filtration devices and the untimely hydrogen collection.

[0025] 2. The present invention provides stable hydrogen delivery power through the operation of the exhaust fan, ensuring that the hydrogen, after previous filtration and other treatments, can be continuously and stably delivered from the three filter tubes along the set path. This avoids unstable flow rate and uneven flow caused by factors such as natural diffusion during the hydrogen delivery process, ensuring the continuity of hydrogen flow throughout the hydrogen discharge device, allowing it to smoothly enter subsequent links. This solves the problem of hydrogen's difficulty in long-distance delivery due to its own pressure and natural diffusion.

[0026] 3. The present invention effectively controls the hydrogen temperature through the principles of coolant circulation and gas heat exchange, ensuring that hydrogen enters the hydrogen storage tank at an appropriate temperature, which is beneficial for storage and subsequent use. At the same time, the flow sensor can accurately and in real time monitor the hydrogen flow, making it easy to understand the operating status and troubleshoot potential problems, ensuring transportation stability and the normal operation of the device. This solves the problem that excessively high hydrogen temperature may cause hydrogen storage tank safety accidents and be detrimental to subsequent applications. It also solves the problem that the hydrogen flow is uncontrollable and difficult to monitor, affecting the operating efficiency of the device and the continuity of subsequent links.

[0027] 4. The present invention uses the support legs and universal wheels under the operating table to achieve convenient movement of the device, allowing for flexible adjustment of the position according to different needs and site layout. This solves the problem of inconvenient movement of the device and the difficulty and low efficiency of manual handling or lifting of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a front perspective diagram of a hydrogen discharge device for an electrolyzer proposed by the present invention;

[0029] Figure 2 This is a schematic diagram of the partial structure of the gas heat exchange tank of the electrolyzer hydrogen discharge device proposed by the present invention;

[0030] Figure 3 This is a partial structural diagram of the hydrogen storage tank of an electrolyzer hydrogen discharge device proposed by the present invention;

[0031] Figure 4 This is a schematic diagram of the partial structure of the electrolytic box of an electrolytic cell hydrogen discharge device proposed by the present invention;

[0032] Figure 5 This is a partial structural cross-sectional view of a filter tube of an electrolyzer hydrogen discharge device proposed by the present invention;

[0033] Figure 6 This is a schematic diagram of the partial structure of the cooling pipe of the electrolyzer hydrogen discharge device proposed by the present invention;

[0034] Figure 7 This is a flow chart of the working method of the electrolyzer hydrogen discharge device proposed by the present invention.

[0035] Among them, 1. operating table; 2. support legs; 3. universal wheels; 4. fixed rod 1; 5. hydrogen storage tank; 6. flow sensor; 7. hydrogen transmission pipe 1; 8. gas heat exchange tank; 9. pump; 10. connecting pipe 1; 11. liquid storage box; 12. connecting pipe 2; 13. electrolytic box; 14. filter tube 1; 15. hydrogen transmission pipe 2; 16. exhaust fan; 17. liquid transmission pipe; 18. purity tester; 19. gas collecting pipe; 20. gas collecting hood; 21. filter tube 2; 22. filter tube 3; 23. separation membrane; 24. silica gel drying tube; 25. butterfly valve 1; 26. butterfly valve 2; 27. connecting rod 1; 28. fixed rod 2; 29. rotating shaft; 30. connecting rod 2; 31. handle; 32. cooling pipe; 33. hydrogen transmission pipe 3. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] Please see the attached Figure 1 -Attached Figure 5The embodiment of the present invention provides an electrolytic cell hydrogen discharge device, comprising an operating table 1, an electrolytic box 13 is provided on one side of the upper surface of the operating table 1, a gas collecting cover 20 is provided inside the electrolytic box 13, a gas collecting pipe 19 is provided on the top of the gas collecting cover 20, a filter tube 21 is provided at one end of the gas collecting pipe 19, a filter tube 14 is provided at both ends of the filter tube 21, a purity detector 18 is provided on the outer wall of the filter tube 21, a plurality of butterfly valves 25 are provided inside the filter tube 21, a connecting rod 27 is provided at the bottom end of the butterfly valve 25 passing through the filter tube 21, a reversing mechanism is provided on the outer wall of the connecting rod 27, and a filter tube 14 is provided. A filter tube 3 22 is provided on the outer wall of the filter tube 3 22, and several butterfly valves 26 are provided on the inner wall of the filter tube 3 22. The top of the butterfly valve 26 is provided at the bottom end of the connecting rod 1 27. A separation membrane 23 is provided inside the filter tube 14, and a silica gel drying tube 24 is provided at the bottom end of the separation membrane 23. The bottom end of the silica gel drying tube 24 is provided at the bottom end of the inner wall of the filter tube 14. The reversing mechanism includes a fixed rod 28, one end of the fixed rod 28 is provided on the outer wall of the connecting rod 1 27, and a handle 31 is provided on the upper surface of one of the fixed rods 28. A rotating shaft 29 is provided at one end of the fixed rod 28, and a connecting rod 2 30 is provided on the outer wall of the rotating shaft 29.

[0038] Specifically, an electrochemical reaction occurs during the operation of the electrolytic cell to produce hydrogen. Since the density of hydrogen is less than that of the surrounding medium, it will naturally rise in the electrolytic box 13 due to the buoyancy. The gas collecting hood 20 is shaped and positioned in accordance with the principles of fluid mechanics to gather hydrogen with minimal resistance during its ascent. The opening of the gas collecting hood 20 faces the direction of hydrogen's ascent, allowing hydrogen to flow smoothly into it, and then through the connection channel between the top of the gas collecting hood 20 and the gas collecting pipe 19, the hydrogen is collected in the gas collecting pipe 19 for transmission.

[0039] The collected hydrogen enters the filter tube 21. The two butterfly valves 25 installed in the filter tube 21 work based on the principle of fluid control. The valve disc of the butterfly valve 25 is disc-shaped and can rotate around the axis of the valve body to control the opening and closing of the channel and the flow rate. In the initial state, one butterfly valve 25 is in the open state and the other is in the closed state. When the operator turns the handle 31, according to the principle of mechanical transmission, the handle 31 is connected to the fixed rod 28, driving the fixed rod 28 to rotate in a circle around the connecting rod 27. The fixed rod 28 is connected to the connecting rod 2 30 through the rotating shaft 29. This connection method constitutes a simple planar four-bar mechanism. When the fixed rod 28 rotates, the connecting rod 2 30 is driven to move through the rotating shaft 29, and then the valve disc of the butterfly valve 25 connected to the connecting rod 2 30 rotates around its own axis, realizing the synchronous rotation of the two butterfly valves 25 to switch the open and closed states.

[0040] Hydrogen entering from gas collecting pipe 19 is controlled by butterfly valve 25, which can only enter filter tube 14 on the corresponding side through the open butterfly valve 25. As butterfly valve 25 rotates to adjust the hydrogen flow, its valve surface and surrounding structure intercept and block larger particulate impurities carried in the hydrogen, such as tiny solid debris generated during the electrolysis process, achieving preliminary filtration.

[0041] Hydrogen entering filter tube 14 first contacts separation membrane 23. Separation membrane 23 is typically made of a material with exceptional selective permeability, such as a polymer, and has a nanoscale microporous structure. Based on the differences in gas molecule characteristics, such as size, shape, and polarity, it utilizes diffusion and screening principles to separate impurity gases.

[0042] Impurity gas molecules, such as chlorine, whose molecular diameter is larger than the pores of separation membrane 23, cannot pass through separation membrane 23 and are blocked on one side of separation membrane 23. Impurity gas molecules, such as oxygen, whose molecular diameter is smaller than the pores and has similar properties to hydrogen molecules, are separated based on their diffusion rates within the material of separation membrane 23. Hydrogen molecules have a relatively fast diffusion rate within separation membrane 23 and preferentially pass through membrane 23, thus achieving separation from the impurity gases.

[0043] The hydrogen then enters the silica gel drying tube 24. The silica gel filling the silica gel drying tube 24 is a porous solid material with numerous tiny pores, which provide a large specific surface area. According to the adsorption principle, as the hydrogen passes through the silica gel drying tube 24, water vapor molecules, due to their polarity and interaction with the silica gel surface, are adsorbed on the pores of the silica gel, thereby removing the water vapor from the hydrogen and achieving hydrogen drying.

[0044] The two butterfly valves 26 provided on the inner wall of the filter tube 3 22 have the same structure and working principle as the butterfly valve 1 25, and are uniformly controlled by the handle 31 through a mechanical connection. When the operator turns the handle 31, the butterfly valve 26 26 and the butterfly valve 1 25 rotate synchronously to switch the open and closed states. During the operation of the device, as the filtering components such as the separation membrane 23 and the silica gel drying tube 24 are gradually clogged with impurities or the adsorption capacity decreases over time, the filtering effect is affected. After filtering at one end for a certain period of time, the handle 31 is turned to switch the channel so that the end that was originally in the closed state is opened to continue filtering the hydrogen, while the end that was originally in the open state is closed. Since the closed end no longer has hydrogen passing through, it can be easily disassembled, and the internal components such as the separation membrane 23 and the silica gel drying tube 24 can be cleaned, replaced or regenerated to restore their filtering and drying performance, ensuring that the entire device can continuously and stably filter and dry the hydrogen efficiently. The hydrogen that has been deeply filtered and dried enters the subsequently connected hydrogen transmission pipe 2 15 from the opened butterfly valve 2 26 for the next step of transportation or processing.

[0045] The electrolyzer hydrogen exhaust device achieves efficient hydrogen collection. A rationally designed gas collection hood 20 and gas collection pipe 19 reduce hydrogen accumulation, ensuring the normal operation of the electrolyzer. Flexible switching of filtration channels allows precise regulation of hydrogen flow, while multi-stage filtration and drying remove various impurities to produce high-purity, dry hydrogen to meet the requirements of various application scenarios. The device also features easy maintenance, allowing filter components to be disassembled and maintained without shutting down the machine, reducing costs, extending service life, and improving equipment efficiency. This solves the problem of substandard hydrogen purification purity, as well as the inconvenient maintenance of traditional filtration devices and the untimely hydrogen collection.

[0046] Please see the attached Figure 2 -Attached Figure 3 An exhaust fan 16 is provided on the upper surface of the operating table 1, and a hydrogen delivery pipe 2 15 is fixedly provided at the input end of the exhaust fan 16, one end of the hydrogen delivery pipe 2 15 is provided on the outer wall of the filter tube 3 22, and a hydrogen delivery pipe 3 33 is fixedly provided at the output end of the exhaust fan 16, and a gas heat exchange mechanism is provided at one end of the hydrogen delivery pipe 3 33.

[0047] Specifically, the exhaust fan 16 works based on the pressure difference principle in fluid mechanics. When the exhaust fan 16 is started, the impeller inside it rotates at high speed, so that a low-pressure area is formed in the area near the input end of the exhaust fan 16, and a relatively high-pressure area is formed at the output end. One end of the hydrogen transmission pipe 2 15 is connected to the outer wall of the filter tube 3 22. After the hydrogen passes through the relevant filtering treatment in the filter tube 3 22, it is in a relatively normal pressure state. Under the suction effect of the low-pressure area at the input end of the exhaust fan 16, the hydrogen will flow along the hydrogen transmission pipe 2 15 to the input end of the exhaust fan 16. Subsequently, the hydrogen enters the interior of the exhaust fan 16, and as the impeller rotates, it is driven by the impeller to accelerate and change its flow direction, and is pushed from the low-pressure input end of the exhaust fan 16 to the high-pressure output end, and then continues to be transported to the subsequent links through the hydrogen transmission pipe 3 33 connected thereto.

[0048] The operation of exhaust fan 16 provides stable hydrogen transport power, ensuring that the hydrogen, after previously filtered and processed, can be continuously and stably transported out of filter tube 3 22 along the set path. This avoids unstable flow rate and uneven flow caused by factors such as natural diffusion during the hydrogen transportation process, ensuring the continuity of hydrogen flow throughout the hydrogen discharge device, allowing it to enter subsequent links smoothly. This solves the problem of hydrogen's difficulty in long-distance transportation due to its own pressure and natural diffusion.

[0049] Please see the attached Figure 1 -Attached Figure 3 , Attachment Figure 6 The gas heat exchange mechanism includes a gas heat exchange tank 8, the bottom end of the outer wall of the gas heat exchange tank 8 is arranged at one end of the hydrogen transmission pipe 33, a cooling pipe 32 is arranged inside the gas heat exchange tank 8, the top of the cooling pipe 32 is provided with a connecting pipe 2 12, the bottom end of the cooling pipe 32 is provided with a liquid transmission pipe 17, the bottom end of the gas heat exchange tank 8 is arranged on the upper surface of the operating table 1, the upper surface of the operating table 1 is provided with a pump 9, the input end of the pump 9 is fixedly provided with a connecting pipe 10, one end of the connecting pipe 10 is provided with a liquid storage box 11, the bottom end of the liquid storage box 11 is provided on the upper surface of the operating table 1, the output end of the pump 9 is fixedly provided at the bottom end of the cooling pipe 32, the top of the gas heat exchange tank 8 is provided with a hydrogen transmission pipe 7, one end of the hydrogen transmission pipe 7 is provided with a hydrogen storage tank 5, and the outer wall of the hydrogen transmission pipe 7 is provided with a flow sensor 6.

[0050] Specifically, pump 9 plays a key role in providing power. Its operation is based on the principle of fluid transportation. At the input end of pump 9, the negative pressure generated by the rotation of the impeller is used to draw the coolant in the liquid storage box 11 into the interior of pump 9 through connecting pipe 1 10. Then, driven by the impeller, the coolant is squeezed out from the output end of pump 9 and transported to the bottom end of cooling pipe 32. The coolant flows upward along cooling pipe 32 and passes through connecting pipe 2 12 after reaching the top, thus forming a complete coolant circulation path. During this process, the coolant continuously flows within cooling pipe 32, providing a continuous cold source for subsequent heat exchange.

[0051] The hydrogen entering the gas heat exchange tank 8 from hydrogen transfer pipe 33 carries a certain amount of heat. Inside the gas heat exchange tank 8, the hydrogen exchanges heat with the coolant flowing within the cooling tube 32. This process is based on the principle of heat conduction, transferring heat from the higher-temperature hydrogen to the lower-temperature coolant. Because the cooling tube 32 has excellent thermal conductivity, when the hydrogen contacts the outer wall of the cooling tube 32, heat is quickly transferred through the tube wall to the coolant flowing within, gradually cooling the hydrogen. The coolant absorbs the heat, then rises in temperature and continues to flow along the circulation path. After returning to the liquid storage box 11, it cools down again, preparing for the next round of heat exchange.

[0052] After cooling through the gas heat exchange tank 8, the hydrogen is transported to the hydrogen storage tank 5 through the hydrogen transmission pipe 7 at the top of the gas heat exchange tank 8. A flow sensor 6 is installed on the outer wall of the hydrogen transmission pipe 7. The flow sensor 6 operates based on different measurement principles. For example, a common differential pressure flow sensor 6 uses the pressure difference generated when the fluid passes through a throttling device to measure the flow rate, or a thermal flow sensor 6 detects the flow rate based on the relationship between heat transfer and fluid flow rate. The flow of hydrogen through the hydrogen transmission pipe 7 is monitored in real time, and the detected flow data is transmitted to the corresponding control system, if equipped, to facilitate the real-time monitoring of the hydrogen transmission status and the subsequent regulation of the operation of the entire device based on the flow data.

[0053] Through the principles of coolant circulation and gas heat exchange, hydrogen temperature is effectively controlled, ensuring that hydrogen enters hydrogen storage tank 5 at an appropriate temperature, facilitating storage and subsequent use. At the same time, flow sensor 6 accurately and in real time monitors hydrogen flow, making it easy to understand the operating status and troubleshoot potential problems, ensuring stable delivery and normal operation of the device. This solves the problem that excessively high hydrogen temperature could cause safety accidents in hydrogen storage tank 5 and hinder subsequent use. It also addresses the problem of uncontrollable and difficult to monitor hydrogen flow, which affects the operating efficiency of the device and the continuity of subsequent links.

[0054] Please see the attached Figure 1 The lower surface of the operating table 1 is provided with a plurality of legs 2, one side of the legs 2 is provided with a fixing rod 4, and the bottom end of the legs 2 is provided with a universal wheel 3.

[0055] Specifically, the operating platform 1 relies on a number of legs 2 to achieve overall support. The legs 2 bear the weight of the operating platform 1 and the numerous components mounted thereon, such as the electrolytic box 13, exhaust fan 16, gas heat exchange mechanism, and pump 9, in the vertical direction. Through reasonable structural design and material selection, the legs 2 are generally made of metal materials with a certain strength and rigidity, such as steel or aluminum alloy, to ensure stable weight bearing and evenly distribute this weight to the ground, ensuring that the entire device can be placed stably. Universal wheels 3 are provided at the bottom ends of the legs 2. The internal structure of the universal wheels 3 includes a rotatable wheel body, bearings, and a mounting bracket for connecting the legs 2. The bearings enable the wheel body to rotate relatively flexibly around the axis, and the mounting bracket is firmly connected to the legs 2. In this way, when an external force is applied to the device, the wheel body of the universal wheel 3 can roll on the ground. Due to its universal rotation characteristics, it can flexibly change the rolling direction according to the direction of the external force, thereby achieving the movement of the entire device on a plane.

[0056] The support legs 2 and universal wheels 3 under the operating table make the device easy to move and adjust its position according to different needs and site layout. This solves the problem of inconvenient device movement and the difficulty and low efficiency of manual handling or lifting equipment.

[0057] Please see the attached Figure 6 A method for operating an electrolyzer hydrogen discharge device, for use in an electrolyzer hydrogen discharge device, comprises the following steps:

[0058] S1. Hydrogen collection: The electrolytic box 13 generates hydrogen during operation. The hydrogen is collected by the gas collecting hood 20 inside the electrolytic box 13 and enters the filter tube 2 21 through the gas collecting pipe 19.

[0059] S2. Preliminary hydrogen filtration and purity testing: After the hydrogen enters the filter tube 21, the butterfly valve 1 25 is operated by the reversing mechanism to adjust the hydrogen flow and perform preliminary impurity blocking. Simultaneously, the purity detector 18 detects the hydrogen purity in real time.

[0060] S3. Hydrogen deep filtration and drying: Hydrogen flows from filter tube 2 21 into filter tube 1 14, is separated from impurities by separation membrane 23, and then passes through silica gel drying tube 24 to absorb water vapor for drying;

[0061] S4. Hydrogen delivery: The filtered and dried hydrogen enters the second hydrogen delivery pipe 15 through the filter pipe 3 22. The exhaust fan 16 draws the hydrogen from the second hydrogen delivery pipe 15 into the third hydrogen delivery pipe 33 and delivers it to the gas heat exchange tank 8.

[0062] S5, gas heat exchange: Pump 9 draws coolant from liquid storage box 11, pumps it into cooling pipe 32 through connecting pipe 10 and liquid infusion pipe 17, and hydrogen enters gas heat exchange tank 8 and exchanges heat with the coolant in cooling pipe 32 to reduce temperature;

[0063] S6. Hydrogen storage: The cooled hydrogen enters the hydrogen storage tank 5 through the hydrogen transmission pipe 7 for storage, and the flow sensor 6 monitors the hydrogen flow in real time;

[0064] S7. Moving and fixing the equipment: When the equipment needs to be moved, the universal wheel 3 is used to push the device, and after reaching the position, the universal wheel 3 is fixed by the fixing rod 4.

[0065] Specifically, the working method of the electrolyzer hydrogen discharge device covers multiple steps. First, the hydrogen generated by electrolysis is collected by using the gas collecting hood 20, and transported in sequence through the pipeline. The flow is adjusted and preliminarily filtered by the reversing mechanism and the butterfly valve. The separation membrane 23 and the silica gel drying tube 24 are used to deeply filter and dry the hydrogen. Then, the exhaust fan 16 provides power to transport the hydrogen to the gas heat exchange tank 8. The pump 9 drives the coolant circulation to achieve gas heat exchange and cooling. The cooled hydrogen flows into the hydrogen storage tank 5 for storage and the flow rate is monitored by the flow sensor 6. Finally, the equipment is moved with the help of the universal wheel 3. Each link operates in coordination according to the corresponding physical, chemical and mechanical principles.

[0066] Through orderly processing of hydrogen from collection to storage, it enables efficient collection, precise flow regulation, deep purification, stable transportation, effective cooling, and safe storage. It also offers the advantages of convenient mobility and reliable fixed equipment, ensuring stable and flexible operation of the entire hydrogen removal system and laying a solid foundation for the subsequent rational utilization of hydrogen. This solves a number of issues, including hydrogen accumulation caused by untimely collection, difficult flow control, substandard purity, insufficient transportation power, excessive temperatures, inconvenient storage monitoring, and difficulties in moving and fixing equipment.

[0067] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A hydrogen discharge device for an electrolyzer, comprising an operating table (1), characterized in that: An electrolytic box (13) is provided on one side of the upper surface of the operating table (1), a gas collecting hood (20) is provided inside the electrolytic box (13), a gas collecting pipe (19) is provided at the top of the gas collecting hood (20), a filter tube 2 (21) is provided at one end of the gas collecting pipe (19), a filter tube 1 (14) is provided at both ends of the filter tube 2 (21), a purity detector (18) is provided on the outer wall of the filter tube 2 (21), a plurality of butterfly valves (25) are provided inside the filter tube 2 (21), and the bottom end of the butterfly valve (25) passes through the filter tube 2 ( 21) is provided with a connecting rod 1 (27), the outer wall of the connecting rod 1 (27) is provided with a reversing mechanism, the outer wall of the filter tube 1 (14) is provided with a filter tube 3 (22), the inner wall of the filter tube 3 (22) is provided with a plurality of butterfly valves 2 (26), the top end of the butterfly valve 2 (26) is provided at the bottom end of the connecting rod 1 (27), the interior of the filter tube 1 (14) is provided with a separation membrane (23), the bottom end of the separation membrane (23) is provided with a silica gel drying tube (24), and the bottom end of the silica gel drying tube (24) is provided at the bottom end of the inner wall of the filter tube 1 (14).

2. The electrolytic cell hydrogen discharge device according to claim 1, characterized in that: The reversing mechanism comprises a second fixing rod (28), one end of which is arranged on the outer wall of the first connecting rod (27), a handle (31) is arranged on the upper surface of one of the second fixing rods (28), a rotating shaft (29) is arranged on one end of the second fixing rod (28), and a second connecting rod (30) is arranged on the outer wall of the rotating shaft (29).

3. The electrolytic cell hydrogen discharge device according to claim 1, characterized in that: An exhaust fan (16) is provided on the upper surface of the operating table (1), a second hydrogen delivery pipe (15) is fixedly provided at the input end of the exhaust fan (16), one end of the second hydrogen delivery pipe (15) is provided on the outer wall of the third filter pipe (22), and a third hydrogen delivery pipe (33) is fixedly provided at the output end of the exhaust fan (16), one end of the third hydrogen delivery pipe (33) is provided with a gas heat exchange mechanism.

4. The electrolytic cell hydrogen discharge device according to claim 3, characterized in that: The gas heat exchange mechanism includes a gas heat exchange tank (8), the bottom end of the outer wall of the gas heat exchange tank (8) is arranged at one end of the hydrogen transmission pipe three (33), a cooling pipe (32) is arranged inside the gas heat exchange tank (8), the top end of the cooling pipe (32) is provided with a connecting pipe two (12), the bottom end of the cooling pipe (32) is provided with a liquid transmission pipe (17), and the bottom end of the gas heat exchange tank (8) is arranged on the upper surface of the operating table (1).

5. The electrolytic cell hydrogen discharge device according to claim 4, characterized in that: A pump (9) is provided on the upper surface of the operating table (1), a connecting pipe (10) is fixedly provided at the input end of the pump (9), a liquid storage box (11) is provided at one end of the connecting pipe (10), and the bottom end of the liquid storage box (11) is provided on the upper surface of the operating table (1).

6. The electrolytic cell hydrogen discharge device according to claim 5, characterized in that: The output end of the pump (9) is fixedly arranged at the bottom end of the cooling pipe (32), the top end of the gas heat exchange tank (8) is provided with a hydrogen transmission pipe (7), one end of the hydrogen transmission pipe (7) is provided with a hydrogen storage tank (5), and the outer wall of the hydrogen transmission pipe (7) is provided with a flow sensor (6).

7. The electrolytic cell hydrogen discharge device according to claim 1, characterized in that: The lower surface of the operating table (1) is provided with a plurality of legs (2), one side of the legs (2) is provided with a fixing rod (4), and the bottom end of the legs (2) is provided with a universal wheel (3).

8. A working method of an electrolyzer hydrogen discharge device, characterized in that: The electrolytic cell hydrogen discharge device according to any one of claims 1 to 7 comprises the following steps: S1. Hydrogen collection: The electrolytic box (13) generates hydrogen when in operation. The hydrogen is collected by the gas collecting hood (20) in the electrolytic box (13) and enters the filter tube 2 (21) through the gas collecting pipe (19); S2. Preliminary filtration and purity detection of hydrogen: After the hydrogen enters the second filter tube (21), the butterfly valve (25) is operated by the reversing mechanism to adjust the hydrogen flow rate and perform preliminary impurity blocking. At the same time, the purity detector (18) detects the hydrogen purity in real time; S3, hydrogen deep filtration and drying: hydrogen flows from filter tube 2 (21) into filter tube 1 (14), is separated from impurity gases by the separation membrane (23), and then passes through the silica gel drying tube (24) to adsorb water vapor for drying; S4, hydrogen transportation: The filtered and dried hydrogen enters the hydrogen transportation pipe 2 (15) through the filter pipe 3 (22), and the exhaust fan (16) draws the hydrogen from the hydrogen transportation pipe 2 (15) into the hydrogen transportation pipe 3 (33) and transports it to the gas heat exchange tank (8); S5, gas heat exchange: the pump (9) extracts the coolant from the liquid storage box (11), and pumps it into the cooling pipe (32) through the connecting pipe (10) and the liquid delivery pipe (17). The hydrogen enters the gas heat exchange tank (8) and exchanges heat with the coolant in the cooling pipe (32) to reduce the temperature; S6. Hydrogen storage: The cooled hydrogen enters the hydrogen storage tank (5) through the hydrogen transmission pipe (7) for storage, and the flow sensor (6) monitors the hydrogen flow in real time; S7. Moving and fixing the equipment: When the equipment needs to be moved, the universal wheel (3) is used to push the device. After reaching the position, the universal wheel (3) is fixed by fixing rod (4).

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