Electrolytic hydrogen generation system

Abstract

The embodiment of the application discloses an electrolytic hydrogen production system, and relates to the technical field of new energy equipment, wherein the electrolytic hydrogen production system comprises a preparation device, a cyclone separator and a gas-liquid separator, the cyclone separator is internally provided with a cyclone cavity, and is provided with an input port, a gas-phase output port and a liquid-phase output port which are communicated with the cyclone cavity, the gas-phase output port is located above the liquid-phase output port, the input port is arranged on the side wall of the cyclone separator and is arranged between the gas-phase output port and the liquid-phase output port, and the input port is connected with the preparation device in a pipeline mode; the gas-liquid separator is provided with a gas-phase inlet and a liquid-phase inlet, the gas output port is connected with the gas-phase inlet in a pipeline mode, the liquid output port is connected with the liquid-phase inlet in a pipeline mode, and the top of the gas-liquid separator is provided with an exhaust port. The technical scheme provided by the embodiment of the application aims to enhance the gas-liquid separation efficiency of the electrolytic hydrogen production system and improve the practicability and system reliability of the electrolytic hydrogen production system.

Description

Technical Field

[0001] The embodiments in this application relate to the field of new energy equipment technology, and in particular to an electrolytic hydrogen production system. Background Technology

[0002] In related technologies, most electrolytic hydrogen production systems use gas-liquid separators to separate the gas produced by the preparation device, so as to reduce impurities such as alkali and water in the prepared gas and ensure reliable gas output of the electrolytic hydrogen production system.

[0003] However, most gas-liquid separators in current electrolytic hydrogen production systems suffer from low efficiency and lagging monitoring, which leads to certain safety risks and reduces the practicality and reliability of these systems. Summary of the Invention

[0004] This application proposes several embodiments under Subject 1, Subject 2, and Subject 3, aiming to enhance the gas-liquid separation efficiency of the electrolytic hydrogen production system and improve its practicality and system reliability.

[0005] An embodiment of this application proposes an electrolytic hydrogen production system including a preparation device, a cyclone separator, and a gas-liquid separator. The cyclone separator has a cyclone chamber and is provided with an inlet, a gas phase outlet, and a liquid phase outlet communicating with the cyclone chamber. The gas phase outlet is located above the liquid phase outlet. The inlet is located on the side wall of the cyclone separator and is located between the gas phase outlet and the liquid phase outlet. The inlet is connected to the preparation device pipeline. The gas-liquid separator has a gas phase inlet and a liquid phase inlet. The gas outlet is connected to the gas phase inlet pipeline, and the liquid outlet is connected to the liquid phase inlet pipeline. The top of the gas-liquid separator is provided with an exhaust port.

[0006] In one embodiment, the electrolytic hydrogen production system includes a liquid phase delivery pipeline connected to the liquid phase outlet and the liquid phase inlet, and a first circulation pump is provided on the liquid phase delivery pipeline.

[0007] In one embodiment, the liquid phase delivery pipeline is further provided with a filter device, which is located between the liquid phase outlet and the first circulating pump. And / or, the liquid phase delivery pipeline is further provided with a check valve, which is located between the first circulating pump and the liquid phase inlet.

[0008] In one embodiment, the cyclone separator includes a separation mesh disposed inside the cyclone separator and above the inlet. The separation mesh divides the cyclone cavity into a first chamber and a second chamber. The gas phase outlet is connected to the first chamber, and the liquid phase outlet is connected to the second chamber.

[0009] In one embodiment, the cyclone separator further includes a liquid level detection device connected to the cyclone separator and used to detect the liquid level within the cyclone separator.

[0010] In one embodiment, the cyclone separator further includes a magnetic suction device disposed on the side wall of the cyclone separator, and the liquid phase outlet is located above the magnetic suction device.

[0011] In one embodiment, the magnetic attraction device includes magnetic poles and a magnetic control system, wherein the magnetic poles are connected to the sidewall of the cyclone separator, and the magnetic control system is electrically connected to the magnetic poles.

[0012] In one embodiment, at least a portion of the structure of the cyclone separator is made of a light-transmitting material.

[0013] In one embodiment, the bottom of the cyclone separator is further provided with a purification port that communicates with the cyclone chamber, and the electrolytic hydrogen production system further includes a collection tank, which is connected to the purification port pipe.

[0014] In one embodiment, the cyclone separator further includes a first cleaning port communicating with the cyclone chamber. The first cleaning port is located on the side wall of the cyclone separator and is used to allow cleaning liquid to be input into the cyclone chamber. And / or, the cyclone separator further includes a second cleaning port communicating with the cyclone chamber. The second cleaning port is disposed opposite to the impurity removal port and is used to allow a cleaning airflow to be input into the cyclone chamber.

[0015] In one embodiment, the gas-liquid separator further includes a drain port, and the electrolytic hydrogen production system further includes a circulation pipeline connected to the drain port and the preparation device.

[0016] In one embodiment, the electrolytic hydrogen production system further includes a cooling device disposed on the circulation pipeline. And / or, the electrolytic hydrogen production system further includes a second circulation pump disposed on the circulation pipeline.

[0017] In one embodiment, the preparation apparatus includes at least one electrolytic cell, and the circulation pipeline includes at least one connecting branch pipe, one of the connecting branch pipes being connected to one of the electrolytic cells.

[0018] In the various embodiments provided in this application, a cyclone separator is used to separate the gas-liquid mixture generated by the preparation device into gas and liquid phases. The separated gas is then transported through a pipeline from the gas phase inlet of the gas-liquid separator to the gas phase space of the gas-liquid separator for further separation and processing. Similarly, the separated liquid is transported through a pipeline from the liquid phase inlet of the gas-liquid separator to the liquid phase space of the gas-liquid separator for further separation and processing. This allows the gas-liquid mixture generated by the preparation device to be separated before being transported to the gas-liquid separator for processing. This effectively reduces the gas inlet rate of the gas-liquid separator, avoids data monitoring lag in the electrolysis hydrogen production system, enables more timely and accurate system control of the electrolysis hydrogen production system, and significantly improves the separation efficiency of the gas-liquid separator. This allows the gas-liquid separator to be designed with a smaller size, facilitating the layout and installation of the electrolysis hydrogen production system and effectively improving the practicality and structural reliability of the electrolysis hydrogen production system. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments or prior art of this application, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the electrolytic hydrogen production system provided in this application;

[0021] Figure 2 This is a schematic diagram of another embodiment of the electrolytic hydrogen production system provided in this application;

[0022] Figure 3 A schematic diagram of the structure of a cyclone separator in an embodiment of the electrolytic hydrogen production system provided in this application;

[0023] Figure 4 A schematic diagram of another embodiment of the cyclone separator for the electrolytic hydrogen production system provided in this application.

[0024] Explanation of icon numbers:

[0025] 100. Electrolytic hydrogen production system; 10. Preparation apparatus; 11. Electrolytic cell; 30. Cyclone separator; 30a. Inlet; 30b. Gas phase outlet; 30c. Liquid phase outlet; 30d. Impurity removal port; 30e. First cleaning port; 30f. Second cleaning port; 31. Separating wire mesh; 33. Liquid level detection device; 35. Magnetic suction device; 351. Magnetic pole; 353. Magnetic control system; 40. Collection tank; 50. Gas-liquid separator; 51. Gas phase inlet; 53. Liquid phase inlet; 55. Exhaust port; 57. Liquid outlet; 70. Liquid phase conveying pipeline; 71. First circulating pump; 73. Filter device; 75. Check valve; 90. Circulation pipeline; 91. Cooling device; 93. Second circulating pump; 95. Connecting branch pipe. Detailed Implementation

[0026] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of several embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] It should be noted that if directional indications (such as up, down, left, right, front, back, etc.) are involved in multiple embodiments of this application, the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] Furthermore, if multiple embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0029] In related technologies, most electrolytic hydrogen production systems employ gas-liquid separators to separate the gas produced by the preparation device, thereby reducing impurities such as alkali and water in the produced gas and ensuring reliable gas output from the electrolytic hydrogen production system. However, current gas-liquid separators in electrolytic hydrogen production systems often suffer from low efficiency and monitoring lag, leading to certain safety risks and reducing the practicality and reliability of the electrolytic hydrogen production system.

[0030] Understandably, most electrolytic hydrogen production systems employ a configuration where multiple electrolyzers share a single gas-liquid separator. These multiple electrolyzers require a shared pipeline connection to the separator, necessitating large-diameter pipelines to transport the gas-liquid mixture from each cell to the separator for separation. Furthermore, a large-sized separator is required to handle the high gas production volume, making equipment transportation and installation difficult. Larger diameter pipelines also increase the flow path of the gas-liquid mixture, leading to lower separation efficiency and potential monitoring delays in the separator and subsequent equipment. This negatively impacts signal control and stable operation, posing certain safety risks to the electrolytic hydrogen production system. To address these issues, this application proposes an electrolytic hydrogen production system 100.

[0031] Please see Figures 1 to 4 In one embodiment of this application, the electrolytic hydrogen production system 100 includes a preparation device 10, a cyclone separator 30, and a gas-liquid separator 50. The cyclone separator 30 has a cyclone chamber and an inlet 30a, a gas phase outlet 30b, and a liquid phase outlet 30c that connect the cyclone chamber. The gas phase outlet 30b is located above the liquid phase outlet 30c. The inlet 30a is located on the side wall of the cyclone separator 30 and is located between the gas phase outlet 30b and the liquid phase outlet 30c. The inlet 30a is connected to the preparation device 10 via a pipe. The gas-liquid separator 50 has a gas phase inlet 51 and a liquid phase inlet 53. The gas outlet is connected to the gas phase inlet 51 via a pipe, and the liquid outlet is connected to the liquid phase inlet 53 via a pipe. The top of the gas-liquid separator 50 has an exhaust port 55.

[0032] In this application, the preparation apparatus 10 may include at least one electrolytic cell 11, which can be used to electrolyze the electrolyte to generate hydrogen and oxygen, thereby achieving stable operation of the electrolytic hydrogen production system 100. The electrolytic cell 11 used in the preparation apparatus 10 may include, but is not limited to, an alkaline electrolytic cell 11, a PEM electrolytic cell 11, etc. The electrolytic hydrogen production system 100 can adjust the output pipeline and subsequent equipment according to the production characteristics of different electrolytic cells 11, so that the electrolytic hydrogen production system 100 can achieve a more reasonable system configuration.

[0033] The cyclone separator 30 can form a cyclone cavity with a certain separation space. By setting a gas phase outlet 30b at the top of the cyclone separator 30, a liquid phase outlet 30c at the bottom of the cyclone separator 30, and an inlet 30a on the side of the cyclone separator 30, with the inlet 30a positioned between the gas phase outlet 30b and the liquid phase outlet 30c, the inlet 30a can be arranged laterally. By using the inlet 30a to introduce gas into the cyclone cavity, the gas-liquid mixture can enter the cyclone separator 30 tangentially along the inner wall of the cyclone cavity. This allows the gas-liquid mixture to undergo centrifugal motion close to the inner wall of the cyclone cavity after entering the cavity, so that the liquid droplets in the gas-liquid mixture can fall to the bottom of the cyclone cavity, while the gas in the gas-liquid mixture can rise to the top of the cyclone cavity. This allows the gas-liquid mixture to achieve a certain gas-liquid separation effect within the cyclone separator 30. At this point, the separated gas can be positioned at the upper part of the cyclone chamber, while the separated liquid is positioned at the bottom of the cyclone chamber. By connecting the gas phase outlet 30b of the cyclone separator 30 to the gas phase inlet 51 of the gas-liquid separator 50 through a pipe, and by connecting the liquid phase outlet 30c of the cyclone separator 30 to the liquid phase inlet 53 of the gas-liquid separator 50 through a pipe, the gas separated in the cyclone chamber can be transported to the gas phase inlet 51 through the gas phase outlet 30b, and the liquid separated in the cyclone chamber can be transported to the liquid phase inlet 53 through the liquid phase outlet 30c.

[0034] The gas-liquid separator 50 can connect the gas phase inlet 51 to the gas phase space inside the gas-liquid separator 50, and the liquid phase inlet 53 to the liquid phase space inside the gas-liquid separator 50. This allows gas containing a small amount of liquid droplets to enter the gas phase space of the gas-liquid separator 50 for further separation and processing, and liquid containing a small amount of bubbles to enter the liquid phase space of the gas-liquid separator 50 for further separation and processing. This allows the gas-liquid mixture generated by the preparation device 10 to be separated by the cyclone separator 30, and then the gas-liquid separator 50 to further separate the gas and liquid phases. This helps to improve the separation efficiency of the gas-liquid separator 50, and allows the gas-liquid separator 50 to meet the preparation requirements of the preparation device 10 with a smaller structural size, which is convenient for the layout of the electrolytic hydrogen production system 100. By using a cyclone separator 30 to separate the gas and liquid phases of the gas-liquid mixture produced by the preparation device 10, and then sending the gas and liquid phases separately to the gas-liquid separator 50 for further separation, the gas inlet rate of the gas-liquid separator 50 can be improved. This allows the instruments in the gas-liquid separator 50 and subsequent equipment of the electrolytic hydrogen production system 100 to obtain monitoring data more timely and accurately, effectively reducing the monitoring lag of the electrolytic hydrogen production system 100, improving the timeliness and accuracy of the control of the electrolytic hydrogen production system 100, and ensuring the safe and stable operation of the electrolytic hydrogen production system 100.

[0035] In one embodiment of this application, a cyclone separator 30 is used to perform gas-liquid phase separation on the gas-liquid mixture generated by the preparation device 10. The separated gas is then transported through a pipeline from the gas phase inlet 51 of the gas-liquid separator 50 to the gas phase space of the gas-liquid separator 50 for further separation and processing. Similarly, the separated liquid is transported through a pipeline from the liquid phase inlet 53 of the gas-liquid separator 50 to the liquid phase space of the gas-liquid separator 50 for further separation and processing. This allows the gas-liquid mixture generated by the preparation device 10 to be separated before being transported to the gas-liquid separator 50 for processing. This effectively reduces the gas inlet rate of the gas-liquid separator 50, avoids data monitoring lag in the instruments of the electrolytic hydrogen production system 100, enables more timely and accurate system control of the electrolytic hydrogen production system 100, and significantly improves the separation efficiency of the gas-liquid separator 50. This allows the gas-liquid separator 50 to be designed with a smaller size, facilitating the layout and installation of the electrolytic hydrogen production system 100, and effectively improving the practicality and structural reliability of the electrolytic hydrogen production system 100.

[0036] In some embodiments, when the preparation device 10 uses an alkaline electrolytic cell 11 for electrolysis, a cyclone separator 30 and a gas-liquid separator 50 can be configured on the side of the preparation device 10 that produces hydrogen. At the same time, a cyclone separator 30 and a gas-liquid separator 50 can also be configured on the side of the preparation device 10 that produces oxygen. This allows the electrolytic hydrogen production system 100 to perform better gas-liquid separation on both the hydrogen and oxygen produced by the preparation device 10, ensuring stable production operation of the electrolytic hydrogen production system 100 and purified output of the produced gases. In other embodiments, when the preparation device 10 uses a PEM electrolyzer 11 for electrolysis, since the oxygen produced by the preparation device 10 has a high water content while the hydrogen produced has a relatively low water content, the oxygen-producing side of the preparation device 10 can be equipped with a cyclone separator 30 and a gas-liquid separator 50, while the hydrogen-producing side can be equipped with a gas-liquid separator 50. This allows for a more rational system configuration of the electrolytic hydrogen production system 100, improving its economic efficiency. Of course, this application is not limited to this; in other embodiments, the electrolytic hydrogen production system 100 can be configured with a cyclone separator 30 and a gas-liquid separator 50 according to the gas conditions produced by the preparation device 10 to achieve better gas-liquid separation.

[0037] See Figure 1 and Figure 2 In one embodiment of this application, the electrolytic hydrogen production system 100 includes a liquid phase transport pipeline 70, which connects the liquid phase output port 30c and the liquid phase inlet 53, and a first circulation pump 71 is provided on the liquid phase transport pipeline 70.

[0038] In this embodiment, the electrolytic hydrogen production system 100 can connect the liquid phase outlet 30c of the hydrocyclone 30 and the liquid phase inlet 53 of the gas-liquid separator 50 via a liquid phase transport pipe 70. This allows the liquid separated in the hydrocyclone 30 to be transported to the gas-liquid separator 50 via the liquid phase transport pipe 70. At this time, by installing a first circulation pump 71 on the liquid phase transport pipe 70, the first circulation pump 71 can draw liquid from the hydrocyclone 30, allowing the liquid to flow into the gas-liquid separator 50 more quickly. This improves the transport efficiency of the separated liquid from the hydrocyclone 30 to the gas-liquid separator 50, further enhancing the gas-liquid separation efficiency of the electrolytic hydrogen production system 100. This further improves the practicality and structural reliability of the electrolytic hydrogen production system 100.

[0039] In one embodiment of this application, a filter device 73 is further provided on the liquid phase transport pipeline 70, and the filter device 73 is located between the liquid phase outlet 30c and the first circulation pump 71.

[0040] In this embodiment, a filter device 73 is installed on the liquid phase conveying pipeline 70. This filter device 73 can filter the liquid flowing in the liquid phase conveying pipeline 70, effectively isolating electrolytic impurities mixed in the liquid. The filter device 73 may include, but is not limited to, filter screens, filter elements, filter cotton, etc. By installing the filter device 73 between the liquid phase output port 30c and the first circulation pump 71, the filter device 73 can filter the separated liquid output from the hydrocyclone separator 30 before it flows through the first circulation pump 71 into the gas-liquid separator 50. This helps to prevent impurities carried in the liquid flow from clogging the channels in the first circulation pump 71, which could lead to a certain probability of the first circulation pump 71 malfunctioning. At the same time, it can effectively prevent impurities from accumulating in the gas-liquid separator 50, affecting the separation effect of the gas-liquid separator 50, reducing the cleaning frequency of the gas-liquid separator 50, and better extending the service life of multiple components in the electrolytic hydrogen production system 100. This ensures the stable and reliable operation of the electrolytic hydrogen production system 100, further improving the practicality and reliability of the electrolytic hydrogen production system 100.

[0041] In one embodiment of this application, a check valve 75 is also provided on the liquid phase delivery pipeline 70, and the check valve 75 is located between the first circulation pump 71 and the liquid phase inlet 53.

[0042] In this embodiment, by installing a check valve 75 on the liquid phase conveying pipeline 70, unidirectional liquid flow can be achieved through the check valve 75. This helps prevent the liquid in the gas-liquid separator 50 from flowing back into the cyclone separator 30 through the liquid phase conveying pipeline 70, ensuring the stable and reliable operation of the electrolytic hydrogen production system 100. At this time, under the action of the check valve 75, the waste liquid generated after static separation in the gas-liquid separator 50 can be stably stored in the gas-liquid separator 50, or the waste liquid can be stably discharged and collected from the drain port 57 of the gas-liquid separator 50, preventing the waste liquid from flowing back into the liquid phase conveying pipeline 70 or the cyclone separator 30, thus hindering the subsequent delivery and separation of production gas. This allows the electrolytic hydrogen production system 100 to operate more continuously, achieving better system control and further improving the practicality and reliability of the electrolytic hydrogen production system 100.

[0043] Furthermore, in some embodiments, the liquid phase conveying pipeline 70 can be sequentially equipped with a filter device and a check valve 75 along the liquid flow direction. This facilitates the use of the filter device to filter and intercept impurities in the liquid flow, and the check valve 75 restricts the unidirectional liquid flow of the liquid phase conveying pipeline 70, preventing backflow and giving a certain probability of flushing the impurities intercepted by the filter device back into the hydrocyclone separator 30. This ensures the stable operation of the electrolytic hydrogen production system 100 and further improves the practicality and reliability of the electrolytic hydrogen production system 100.

[0044] See Figures 1 to 4 In one embodiment of this application, the cyclone separator 30 includes a separation mesh 31, which is disposed inside the cyclone separator 30 and above the inlet 30a. The separation mesh 31 divides the cyclone cavity into a first chamber and a second chamber. The gas phase outlet 30b is connected to the first chamber, and the liquid phase outlet 30c is connected to the second chamber.

[0045] In this embodiment, a separation mesh 31 can be provided in the cyclone separator 30 within the cyclone cavity. The separation mesh 31 can be a mesh structure installed and connected within the cyclone cavity; or the separation mesh 31 can be a filter cartridge structure, with one end of the separation mesh 31 having a rim connected to the inner wall of the cyclone cavity. This allows the separation mesh 31 to divide the cyclone cavity into a first chamber and a second chamber. Under the separating effect of the separation mesh 31, the gas-liquid separator 50 can first enter the second chamber and perform a certain amount of gas-liquid separation using centrifugal motion. The separated gas must pass through the separation mesh 31 when flowing from the second chamber toward the first chamber, allowing the separation mesh 31 to further capture and intercept liquid droplets carried in the gas. This results in lower impurity levels in the gas entering the first chamber after passing through the separation mesh 31, achieving a better gas-liquid separation effect for the cyclone separator 30. By connecting the gas phase outlet 30b to the first chamber, the gas with better separation effect can be better delivered to the gas-liquid separator 50 for further static separation, thereby improving the separation efficiency of the gas-liquid separator 50 and ensuring the stable operation of the electrolytic hydrogen production system 100.

[0046] The separation wire mesh 31 is used to separate the first chamber and the second chamber. When the droplets captured on the separation wire mesh 31 reach a certain saturation level, they fall into the second chamber. This allows the liquid after cyclone separation to be collected more fully in the second chamber, ensuring a more complete and reliable separation effect for the gas being produced. This further improves the practicality and reliability of the electrolytic hydrogen production system 100.

[0047] See Figures 1 to 4 In one embodiment of this application, the cyclone separator 30 further includes a liquid level detection device 33, which is connected to the cyclone separator 30 and used to detect the liquid level in the cyclone separator 30.

[0048] In this embodiment, a liquid level detection device 33 may be provided in the hydrocyclone separator 30. The liquid level detection device 33 may be a liquid level sensor located between the inlet 30a and the liquid phase outlet 30c. When the liquid level in the hydrocyclone chamber rises to a certain height, the liquid level detection device 33 is triggered to respond, so that the electrolytic hydrogen production system 100 can trigger a certain regulation program to regulate the preparation device 10 or the pipeline connecting the preparation device 10 and the hydrocyclone separator 30, so as to prevent the liquid in the hydrocyclone separator 30 from flowing into the preparation device 10 through the inlet 30a, and ensure the stable operation of the electrolytic hydrogen production system 100. In addition, the liquid level detection device 33 can also be equipped with a liquid level sensor at the position of the lower liquid level in the swirling cavity, so that the liquid level detection device 33 can trigger a response when the liquid level in the swirling cavity is low. This is beneficial for the control of the pipeline connecting the liquid phase output port 30c and the liquid phase inlet 53, preventing the pipeline from emptying and potentially causing air to enter the gas-liquid separator 50. This ensures the stable separation operation of the gas-liquid separator 50 and further improves the practicality and structural reliability of the electrolytic hydrogen production system 100.

[0049] Among them, the liquid level detection device 33 can be set up with a liquid level sensor or with an optical detection principle. This application does not limit the type of liquid level detection device 33, as long as it can detect the liquid level in the vortex cavity.

[0050] See Figure 2 and Figure 4 In one embodiment of this application, the cyclone separator 30 further includes a magnetic attraction device 35, which is disposed on the side wall of the cyclone separator 30, and the liquid phase outlet 30c is located above the magnetic attraction device 35.

[0051] In this embodiment, when the preparation device 10 performs electrolysis to produce hydrogen and oxygen, impurities such as nickel powder in the electrolyte are easily transported to the gas-liquid separator 50 along with the prepared gas. This leads to the deposition of a certain amount of flocculent impurities in the gas-liquid separator 50 after a certain period of operation, affecting the continuous operation of the gas-liquid separator 50. Therefore, by setting a magnetic suction device 35 on the side wall of the cyclone separator 30 and placing the magnetic suction device 35 near the bottom of the cyclone separator 30, a certain magnetic field can be generated in the cyclone separator 30 using the magnetic suction device 35. This allows impurities such as nickel powder carried in the liquid separated and falling into the cyclone cavity to be adsorbed onto the inner wall of the cyclone cavity by the magnetic field of the magnetic suction device 35. This effectively reduces the impurities carried in the liquid flow flowing out through the liquid phase outlet 30c, thereby significantly reducing the deposited impurities in the gas-liquid separator 50, reducing the cleaning frequency of the gas-liquid separator 50, and enabling the electrolytic hydrogen production system 100 to achieve better continuous operation. This further improves the practicality and structural reliability of the electrolytic hydrogen production system 100.

[0052] The magnetic attraction device 35 can be an electromagnetic device, and the start and stop of the magnetic attraction device 35 can be achieved by controlling the on and off of the current supplied to the magnetic attraction device 35; or the magnetic attraction device 35 can use a drive mechanism to drive the permanent magnet to approach or move away from the cyclone separator 30, so as to achieve the adsorption and release of impurities in the cyclone cavity by the magnetic attraction device 35; the magnetic attraction device 35 can also be set in various structural forms. This application does not limit the structural form of the magnetic attraction device 35, as long as it can achieve the adsorption and release of impurities carried in the liquid in the cyclone cavity. Therefore, when the hydrocyclone separator 30 is operating, the electrolytic hydrogen production system 100 can control the magnetic adsorption device 35 to adsorb liquid impurities in the cyclone cavity, causing the impurities to accumulate on the inner wall of the cyclone cavity. Then, when the electrolytic hydrogen production system 100 is in standby or shutdown state, the magnetic adsorption device 35 can be controlled to turn off the magnetic field effect on the cyclone separator 30. At this time, the impurities attached to the inner wall of the cyclone cavity will lose the magnetic field effect and fall to the bottom of the cyclone cavity, which is convenient for cleaning the impurities in the cyclone separator 30, ensuring the continuous operation of the cyclone separator 30, and further improving the practicality and reliability of the electrolytic hydrogen production system 100.

[0053] See Figure 2 and Figure 4 In one embodiment of this application, the magnetic attraction device 35 includes a magnetic pole 351 and a magnetic control system 353. The magnetic pole 351 is connected to the side wall of the cyclone separator 30, and the magnetic control system 353 is electrically connected to the magnetic pole 351.

[0054] In this embodiment, the magnetic attraction device 35 can be mounted on the side wall of the cyclone separator 30 using magnetic poles 351, and electrically connected to the magnetic poles 351 using a magnetic control system 353. This allows the magnetic attraction device 35 to generate and eliminate the magnetic field by controlling the operation of the magnetic control system 353, thus achieving more stable and reliable operation control of the electrolytic hydrogen production system 100. The magnetic poles 351 can be, but are not limited to, coils, energized iron cores, etc. The magnetic control system 353 can supply or de-energize the magnetic poles 351, so that when energized, the magnetic poles 351 can generate a certain magnetic field acting on the cyclone cavity, and when de-energized, the magnetic field generated by the magnetic poles 351 can be stably eliminated. This ensures that impurities in the cyclone cavity lose the effect of the magnetic field and fall and accumulate at the bottom of the cyclone cavity, facilitating the removal of impurities from the liquid flow and the discharge and cleaning of impurities. This achieves more convenient automated control of the electrolytic hydrogen production system 100, further improving the practicality and reliability of the electrolytic hydrogen production system 100.

[0055] In one embodiment of this application, at least a portion of the structure of the cyclone separator 30 is made of a light-transmitting material.

[0056] In this application, the cyclone separator 30 is made of a light-transmitting material, which can include, but is not limited to, glass, acrylic, etc., allowing for a more direct observation of the environment inside the cyclone cavity and facilitating a better understanding of the operating conditions of the cyclone separator 30. The cyclone separator 30 can be entirely made of a light-transmitting material to facilitate better observation of the conditions inside the cyclone cavity; alternatively, the cyclone separator 30 can be constructed using a combination of light-transmitting material and materials such as metal or ceramic. In this case, the portion of the structure using the light-transmitting material can be the bottom structure of the cyclone separator 30, allowing the separated liquid to fall into the light-transmitting structure of the cyclone separator 30, facilitating better observation of the liquid conditions inside the cyclone separator 30. Furthermore, by utilizing a hydrocyclone separator 30 with at least a portion of its structure made of a light-transmitting material, the liquid level and impurities within the hydrocyclone separator 30 can be more easily observed from the outside of the separator. This facilitates a better understanding of the operating conditions of the electrolytic hydrogen production system 100, enabling more stable system control. Simultaneously, the light-transmitting material of the hydrocyclone separator 30 allows for better observation of deposited impurities within the cyclone chamber, facilitating the removal or cleaning of impurities. This effectively prevents impurities from clogging the liquid phase outlet 30c of the hydrocyclone separator 30, preventing impurities from being transported to other components with the separated liquid, ensuring the stable operation of the electrolytic hydrogen production system 100, and further improving its practicality and structural reliability.

[0057] Furthermore, when the cyclone separator 30 is equipped with a magnetic adsorption device 35 to adsorb impurities in the separated liquid onto the inner wall of the cyclone cavity, by using a light-transmitting material for the cyclone separator 30, the amount of impurities adsorbed onto the inner wall of the cyclone cavity by the magnetic adsorption device 35 can be observed more intuitively. This is beneficial for better cleaning of the cyclone separator 30 based on the observation results, and for achieving more stable and reliable system control of the electrolysis hydrogen production system 100.

[0058] See Figure 2 and Figure 4 In one embodiment of this application, the bottom of the cyclone separator 30 is further provided with a purification port 30d that communicates with the cyclone chamber, and the electrolytic hydrogen production system 100 further includes a collection tank 40, which is connected to the purification port 30d by a pipe.

[0059] In this embodiment, the hydrocyclone separator 30 allows the separated liquid to settle at the bottom of the hydrocyclone chamber for a certain period of time before being discharged through the liquid phase outlet 30c, so that impurities in the liquid can be deposited at the bottom of the hydrocyclone separator 30. Alternatively, a magnetic adsorption device 35 can be used to adsorb impurities in the liquid onto the inner wall of the hydrocyclone chamber, and the magnetic adsorption device 35 can be demagnetized when the electrolytic hydrogen production system 100 is in standby or stopped, causing the impurities to settle at the bottom of the hydrocyclone chamber. By setting a removal port 30d at the bottom of the hydrocyclone separator 30, impurities deposited at the bottom of the hydrocyclone chamber can be transported through the removal port 30d to the collection tank 40 via a pipeline, thereby cleaning the impurities in the hydrocyclone separator 30, ensuring more reliable continuous operation of the hydrocyclone separator 30, and further improving the practicality and reliability of the electrolytic hydrogen production system 100.

[0060] See Figure 2 and Figure 4 In one embodiment of this application, the cyclone separator 30 is further provided with a first cleaning port 30e communicating with the cyclone cavity. The first cleaning port 30e is provided on the side wall of the cyclone separator 30 for allowing cleaning liquid to be input into the cyclone cavity.

[0061] In this embodiment, by providing a first cleaning port 30e on the side wall of the hydrocyclone 30, a liquid delivery mechanism for conveying clean water or clean water containing cleaning components can be provided in the electrolytic hydrogen production system 100. The liquid delivery mechanism is connected to the first cleaning port 30e, so that when the electrolytic hydrogen production system 100 is in standby or shutdown state, a certain amount of cleaning liquid can be introduced into the hydrocyclone cavity through the first cleaning port 30e. This is beneficial for the impurities deposited at the bottom of the hydrocyclone cavity to be better discharged from the impurity removal port 30d under the action of the cleaning liquid, thereby achieving a better cleaning and impurity removal effect of the hydrocyclone 30, ensuring better continuous operation of the hydrocyclone 30, and further improving the practicality and reliability of the electrolytic hydrogen production system 100.

[0062] See Figure 2 and Figure 4 In one embodiment of this application, the cyclone separator 30 is further provided with a second cleaning port 30f communicating with the cyclone cavity. The second cleaning port 30f is disposed opposite to the impurity removal port 30d, so as to allow clean airflow to be input into the cyclone cavity.

[0063] In this embodiment, the cyclone separator 30 may also be provided with a second cleaning port 30f opposite to the impurity removal port 30d. The second cleaning port 30f can be connected to the air blowing mechanism pipe, so that a certain amount of clean airflow can be introduced into the cyclone cavity through the second cleaning port 30f. When the electrolysis hydrogen production system 100 is in standby or shutdown state, the clean airflow can flow towards the impurity removal port 30d to drive the impurities at the bottom of the cyclone cavity to be discharged from the impurity removal port 30d, thereby achieving a better cleaning and impurity removal effect in the cyclone separator 30, ensuring the continuous operation of the cyclone separator 30, and further improving the practicality and reliability of the electrolysis hydrogen production system 100.

[0064] In addition, in some embodiments, the cyclone separator 30 may be provided with a first cleaning port 30e and a second cleaning port 30f at the same time. The cleaning liquid and the cleaning gas flow can be alternately introduced into the cyclone cavity from the first cleaning port 30e and the second cleaning port 30f respectively for cleaning, so that the cyclone separator 30 can achieve a better cleaning and impurity removal effect, ensure the continuous separation operation of the cyclone separator 30, and further improve the practicality and reliability of the electrolysis hydrogen production system 100.

[0065] See Figures 1 to 4 In one embodiment of this application, the gas-liquid separator 50 also has a drain port 57, and the electrolytic hydrogen production system 100 also includes a circulation pipe 90, which connects the drain port 57 and the preparation device 10.

[0066] In this embodiment, after the liquid separated by the cyclone separator 30 enters the liquid phase space of the gas-liquid separator 50, it can be left to stand in the liquid phase space for separation, so that the bubbles in the liquid move upward and release gas in the upper part of the gas-liquid separator 50, and output through the exhaust port 55 at the top of the gas-liquid separator 50, so as to achieve full separation and discharge of the gas-liquid mixture and ensure the stable operation of the electrolysis hydrogen production system 100. At this time, the liquid phase space of the gas-liquid separator 50 can store the liquid produced after separation. This liquid usually contains a certain amount of unelectrolyzed electrolyte. By setting a drain port 57 on the gas-liquid separator 50 and connecting the drain port 57 and the preparation device 10 through a circulation pipe 90, the liquid in the gas-liquid separator 50 can be returned to the preparation device 10 through the circulation pipe 90. This allows the residual electrolyte in the liquid to be fully electrolyzed in the preparation device 10, effectively reducing the waste of electrolyte discharge. This enables the electrolytic hydrogen production system 100 to achieve more complete and reliable electrolysis operations, further improving the practicality and reliability of the electrolytic hydrogen production system 100.

[0067] See Figures 1 to 4 In one embodiment of this application, the electrolytic hydrogen production system 100 further includes a cooling device 91, which is disposed on the circulation pipeline 90.

[0068] In this embodiment, since the liquid separated by the gas-liquid separator 50 still has a certain temperature, a cooling device 91 is installed on the circulation pipe 90 to cool the liquid transported on the circulation pipe 90. This allows the circulation pipe 90 to transport the liquid at a lower temperature to the preparation device 10 for full electrolysis, reducing the temperature impact on the preparation device 10, ensuring the stable operation of the preparation device 10, and further improving the practicality and reliability of the electrolysis hydrogen production system 100.

[0069] See Figures 1 to 4 In one embodiment of this application, the electrolytic hydrogen production system 100 further includes a second circulation pump 93, which is disposed on the circulation pipeline 90.

[0070] In this embodiment, by installing a second circulation pump 93 on the circulation pipeline 90, the flow rate of the liquid in the circulation pipeline 90 can be regulated by the second circulation pump 93, so that the liquid in the gas-liquid separator 50 can be more stably delivered to the preparation device 10. This is beneficial to better maintain the relative stability of the gas phase space and the liquid phase space in the gas-liquid separator 50, and to achieve a more stable and reliable separation operation of the gas-liquid separator 50. At the same time, the second circulation pump 93 can be controlled according to the operating conditions of the preparation device 10, so that the electrolytic hydrogen production system 100 can achieve more stable system control, ensure the continuous and reliable operation of the electrolytic hydrogen production system 100, and further improve the practicality and reliability of the electrolytic hydrogen production system 100.

[0071] See Figures 1 to 4 In one embodiment of this application, the preparation apparatus 10 includes at least one electrolytic cell 11, and the circulation pipe 90 includes at least one connecting branch pipe 95, with one connecting branch pipe 95 connected to one electrolytic cell 11.

[0072] In this embodiment, the preparation apparatus 10 can perform electrolysis using only one electrolytic cell 11. In this case, a connecting branch pipe 95 can be provided on the circulation pipe 90 to connect to the electrolytic cell 11, so that the liquid discharged from the gas-liquid separator 50 can be stably returned to the electrolytic cell 11 for further electrolysis. Alternatively, the preparation apparatus 10 can have multiple electrolytic cells 11. In this case, multiple connecting branch pipes 95 can be provided on the circulation pipe 90 to connect to multiple electrolytic cells 11 respectively, so that the liquid in the gas-liquid separator 50 can be diverted and returned to multiple electrolytic cells 11, achieving more stable operation of the electrolytic hydrogen production system 100. At this time, control valves, second circulation pumps 93, and other components can be installed on each connecting branch pipe 95. This is beneficial for regulating the liquid flow rate on each connecting branch pipe 95 using control valves, and for ensuring stable liquid flow on each connecting branch pipe 95 using the second circulation pump 93. This ensures stable liquid flow from the circulation pipeline 90 to each electrolytic cell 11, enabling the electrolytic hydrogen production system 100 to achieve more stable and reliable system control, and further improving the practicality and structural reliability of the electrolytic hydrogen production system 100.

[0073] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. An electrolytic hydrogen production system, characterized in that, include: Preparation apparatus; A hydrocyclone separator, wherein the hydrocyclone separator has a hydrocyclone chamber and an inlet, a gas phase outlet and a liquid phase outlet connected to the hydrocyclone chamber. The gas phase outlet is located above the liquid phase outlet. The inlet is located on the side wall of the hydrocyclone separator and between the gas phase outlet and the liquid phase outlet. The inlet is connected to the pipeline of the preparation device. A gas-liquid separator is provided with a gas phase inlet and a liquid phase inlet. The gas outlet is connected to the gas phase inlet pipe, and the liquid outlet is connected to the liquid phase inlet pipe. An exhaust port is provided at the top of the gas-liquid separator.

2. The electrolytic hydrogen production system as described in claim 1, characterized in that, The electrolytic hydrogen production system includes a liquid phase delivery pipeline, which connects the liquid phase outlet and the liquid phase inlet, and a first circulation pump is provided on the liquid phase delivery pipeline.

3. The electrolytic hydrogen production system as described in claim 2, characterized in that, The liquid phase transport pipeline is also equipped with a filter device, which is located between the liquid phase outlet and the first circulation pump. And / or, the liquid phase delivery pipeline is also provided with a check valve, which is located between the first circulation pump and the liquid phase inlet.

4. The electrolytic hydrogen production system as described in claim 1, characterized in that, The cyclone separator includes a separation wire mesh disposed inside the cyclone separator and above the inlet. The separation wire mesh divides the cyclone chamber into a first chamber and a second chamber. The gas phase outlet is connected to the first chamber, and the liquid phase outlet is connected to the second chamber.

5. The electrolytic hydrogen production system as described in claim 1, characterized in that, The cyclone separator also includes a liquid level detection device, which is connected to the cyclone separator and used to detect the liquid level inside the cyclone separator.

6. The electrolytic hydrogen production system as described in claim 1, characterized in that, The cyclone separator also includes a magnetic suction device, which is located on the side wall of the cyclone separator, and the liquid phase outlet is located above the magnetic suction device.

7. The electrolytic hydrogen production system as described in claim 6, characterized in that, The magnetic attraction device includes magnetic poles and a magnetic control system. The magnetic poles are connected to the side wall of the cyclone separator, and the magnetic control system is electrically connected to the magnetic poles.

8. The electrolytic hydrogen production system as described in claim 1, characterized in that, At least a portion of the structure of the cyclone separator is made of a light-transmitting material.

9. The electrolytic hydrogen production system according to any one of claims 1 to 8, characterized in that, The bottom of the cyclone separator is also provided with a purification port that connects to the cyclone chamber. The electrolytic hydrogen production system also includes a collection tank, which is connected to the purification port pipe.

10. The electrolytic hydrogen production system as described in claim 9, characterized in that, The cyclone separator is further provided with a first cleaning port that communicates with the cyclone chamber. The first cleaning port is located on the side wall of the cyclone separator and is used to allow cleaning liquid to be input into the cyclone chamber. And / or, the cyclone separator is further provided with a second cleaning port communicating with the cyclone cavity, the second cleaning port being disposed opposite to the impurity removal port, for allowing clean airflow to be input into the cyclone cavity.

11. The electrolytic hydrogen production system according to any one of claims 1 to 8, characterized in that, The gas-liquid separator also has a drain port, and the electrolytic hydrogen production system also includes a circulation pipeline, which connects the drain port and the preparation device.

12. The electrolytic hydrogen production system as described in claim 11, characterized in that, The electrolytic hydrogen production system also includes a cooling device, which is located on the circulation pipeline; And / or, the electrolytic hydrogen production system further includes a second circulation pump, which is located on the circulation pipeline.

13. The electrolytic hydrogen production system as described in claim 11, characterized in that, The preparation apparatus includes at least one electrolytic cell, and the circulation pipeline includes at least one connecting branch pipe, with one connecting branch pipe connected to one of the electrolytic cells.

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