Gas-liquid separation mechanism and hydrogen production equipment

Abstract

The application discloses a gas-liquid separation mechanism and a hydrogen production device. The gas-liquid separation mechanism comprises a gas-liquid separator and a liquefaction assembly. The gas-liquid separator comprises at least two groups, each gas-liquid separator comprises a cavity, an input channel and an exhaust channel, the input channel and the exhaust channel of each gas-liquid separator are in communication with the cavity, and the exhaust channel of at least one group of gas-liquid separators is in communication with the input channel of at least another group of gas-liquid separators to form a liquefaction channel. The liquefaction assembly is arranged in the liquefaction channel, and the liquefaction assembly is used at least for converting at least part of the gas in the liquefaction channel into liquid. The application solves the problem that the prior art cannot remove gaseous water in hydrogen, and the water content in hydrogen is still high.

Description

Technical Field

[0001] This application relates to the field of hydrogen production technology, and more specifically, to a gas-liquid separation mechanism and hydrogen production equipment. Background Technology

[0002] The hydrogen production process via water electrolysis includes a hydrogen purification process at the downstream end to reduce the liquid and gaseous moisture content in the hydrogen. In existing technologies, a gas-liquid separator is used at the downstream end of the water electrolysis process to separate the hydrogen and water mixture under gravity. However, the gas-liquid separator in this technology cannot remove the gaseous moisture from the hydrogen, resulting in a still relatively high water content in the hydrogen. Utility Model Content

[0003] The main objective of this application is to provide a gas-liquid separation mechanism and a hydrogen production device to solve the problem that the existing technology cannot remove gaseous moisture from hydrogen, and the water content in hydrogen is still relatively high.

[0004] According to one aspect of this application, a gas-liquid separation mechanism is provided, comprising:

[0005] A gas-liquid separator, comprising at least two sets, each gas-liquid separator including a cavity, an input channel and an exhaust channel, the input channel and the exhaust channel of each gas-liquid separator being interconnected with the cavity, and the exhaust channel of at least one set of gas-liquid separators being interconnected with the input channel of at least another set of gas-liquid separators to form a liquefaction channel;

[0006] A liquefaction component disposed in the liquefaction channel, the liquefaction component being used to convert at least a portion of the gas within the liquefaction channel into a liquid.

[0007] Further, the liquefaction component includes:

[0008] A heat exchanger is provided with a liquefaction channel and a refrigerant channel. The first port of the liquefaction channel is interconnected with the exhaust channel of at least one set of gas-liquid separators, and the second port of the liquefaction channel opposite to the first port is interconnected with the input channel of at least another set of gas-liquid separators.

[0009] The refrigerant channel is provided with a refrigerant medium, which absorbs heat from the liquefaction channel to convert at least a portion of the gas in the liquefaction channel into liquid.

[0010] Furthermore, each of the aforementioned gas-liquid separators includes:

[0011] The housing includes a cavity, an input channel, an exhaust channel, and a drain channel. The drain channel communicates with the cavity. The exhaust channel is located at the top of the cavity, and the drain channel is located at the bottom of the cavity. The input channel is located near the exhaust channel. The housing also includes a liquid level detection component, which is used to detect at least the liquid level position of the liquid in the cavity.

[0012] An adjusting component is disposed in the drainage channel, and the adjusting component has a first state of closing the drainage channel and a second state of opening the drainage channel.

[0013] The gas-liquid separation mechanism further includes a controller. The liquid level detection component and the adjustment component are both electrically connected to the controller. The controller controls the adjustment component to switch between the first state and the second state according to the signal transmitted by the liquid level detection component.

[0014] Furthermore, the liquid level detection component includes a first liquid level gauge, a second liquid level gauge, and a third liquid level element. From the top end of the cavity to the bottom end of the cavity, the first liquid level gauge, the second liquid level gauge, and the third liquid level element are sequentially spaced apart on the housing and electrically connected to the controller respectively.

[0015] Furthermore, the cavity includes a vertical chamber and a horizontal chamber, which are interconnected. The outer shell includes a first shell portion and a second shell portion. The vertical chamber is disposed within the first shell portion, and the horizontal chamber is disposed within the second shell portion. The first shell portion and the second shell portion are interconnected and enclose the cavity. The top end of the vertical chamber is connected to the exhaust channel, and the bottom end of the horizontal chamber is connected to the drain channel. The first level gauge and the second level gauge are connected to the first shell portion, and the third level element is connected to the second shell portion.

[0016] After receiving signals from the second level gauge and the third level element, the controller controls the regulating component to switch between the first state and the second state.

[0017] Furthermore, the adjusting component includes:

[0018] A first solenoid valve is disposed in the drain channel and electrically connected to the controller. The controller controls the first solenoid valve to switch between the first state and the second state through a signal transmitted by the liquid level detection component.

[0019] The second solenoid valve is disposed in the drainage channel and between the first solenoid valve and the cavity. The second solenoid valve is electrically connected to the controller. The controller controls the second solenoid valve to switch between the first state and the second state through the signal transmitted by the liquid level detection component.

[0020] Furthermore, each of the gas-liquid separators also includes a one-way valve, which is disposed in the drain channel and located between the regulating component and the cavity, and the flow direction of the one-way valve is from the cavity toward the regulating component.

[0021] Furthermore, the gas-liquid separator includes two sets. The exhaust channel of the first set of gas-liquid separators is interconnected with the input channel of the second set of gas-liquid separators. A pressure valve is provided on the exhaust channel of the second set of gas-liquid separators. The pressure valve is used to detect the gas pressure in the exhaust channel. When the gas pressure is not greater than a predetermined value, the pressure valve closes the exhaust channel.

[0022] Furthermore, the first group of gas-liquid separators also includes a maintenance channel, which is connected to the cavity and located near the exhaust channel, and a maintenance valve is provided on the maintenance channel.

[0023] On the other hand, this application also provides a hydrogen production device, which includes the gas-liquid separation mechanism described above.

[0024] In this application, the cavity of the gas-liquid separator contains a gas-liquid mixture of hydrogen and water. This mixture can be separated into hydrogen and water under external force, and the hydrogen and gaseous water can be output through the exhaust channel of the gas-liquid separator. By setting up multiple sets of gas-liquid separators, which are interconnected to form a liquefaction channel, and installing liquefaction components on the liquefaction channel, the liquefaction components can convert gaseous water in the hydrogen into liquid, greatly reducing the water content in the hydrogen and improving its purity. Multiple sets of gas-liquid separators can achieve multi-stage separation of hydrogen and water, gradually reducing the water content in the hydrogen. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0026] Figure 1 This is a schematic diagram (a) of the gas-liquid separation mechanism disclosed in this application.

[0027] Figure 2 This is a schematic diagram of the structure of the outer shell disclosed in this application;

[0028] Figure 3 This is a schematic diagram (II) of the gas-liquid separation mechanism disclosed in this application.

[0029] The above figures include the following reference numerals:

[0030] 10. Gas-liquid separator; 12. Input channel; 13. Exhaust channel; 131. Inspection channel; 132. Inspection valve; 14. Housing; 141. First housing section; 142. Second housing section; 15. Adjustment component; 151. First solenoid valve; 152. Second solenoid valve; 16. Drainage channel; 17. Liquid level detection component; 171. First liquid level gauge; 172. Second liquid level gauge; 173. Third liquid level component; 18. Check valve; 19. Pressure valve; 20. Liquefaction assembly; 21. Heat exchanger; 211. First port; 212. Second port; 213. Third port; 214. Fourth port. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0034] like Figures 1 to 3As shown, this application provides a gas-liquid separation mechanism. The gas-liquid separation mechanism includes a gas-liquid separator 10 and a liquefaction component 20. The gas-liquid separator 10 includes at least two sets. Each gas-liquid separator 10 includes a cavity, an input channel 12, and an exhaust channel 13. The input channel 12 and exhaust channel 13 of each gas-liquid separator 10 are interconnected with the cavity. The exhaust channel 13 of at least one set of gas-liquid separators 10 is interconnected with the input channel 12 of at least another set of gas-liquid separators 10 to form a liquefaction channel. The liquefaction component 20 is disposed in the liquefaction channel, and the liquefaction component 20 is used to convert at least a portion of the gas within the liquefaction channel into liquid.

[0035] In this embodiment, during the electrolysis of water to produce hydrogen, some water is converted from liquid water to gaseous water under high temperature. This gaseous water mixes with the hydrogen. After the gas-liquid mixture of hydrogen, gaseous water, and liquid water enters the cavity of the gas-liquid separator 10, the hydrogen and gaseous water can flow through the exhaust channel 13 to the input channel 12 of another gas-liquid separator 10. The exhaust channel 13 and the input channel 12 of the other gas-liquid separator 10 form a liquefaction channel, and a liquefaction component 20 is provided on the liquefaction channel. The liquefaction component 20 can convert the gaseous water in the liquefaction channel into liquid water. Hydrogen and liquid water flow into the cavity of the other gas-liquid separator 10 through the liquefaction channel, and hydrogen flows out from the exhaust channel 13 of the other gas-liquid separator 10. By setting up multiple sets of gas-liquid separators 10, which are interconnected to form a liquefaction channel, and installing liquefaction components 20 on the liquefaction channel, the liquefaction components 20 can convert gaseous water in hydrogen into liquid, greatly reducing the water content in hydrogen and improving its purity. Multiple sets of gas-liquid separators 10 can achieve multi-stage separation of hydrogen and water, gradually reducing the water content in the hydrogen.

[0036] In one embodiment, the liquefaction assembly 20 includes a heat exchanger 21. The heat exchanger 21 contains a liquefaction channel and a refrigerant channel. A first port 211 of the liquefaction channel is connected to the exhaust channel 13 of at least one set of gas-liquid separators 10, and a second port 212 of the liquefaction channel, opposite to the first port 211, is connected to the input channel 12 of at least another set of gas-liquid separators 10. A refrigerant medium is disposed within the refrigerant channel, absorbing heat from the liquefaction channel to convert at least a portion of the gas within the liquefaction channel into liquid. During the flow of hydrogen and gaseous water from the first port 211 into the liquefaction channel and to the second port 212 of the heat exchanger 21, the refrigerant medium in the refrigerant channel absorbs heat from the gas within the liquefaction channel, causing the gaseous water to liquefy into liquid water upon cooling. The heat exchanger 21 effectively removes gaseous water from the hydrogen, further reducing the water content in the hydrogen, increasing the purity of the hydrogen, and meeting higher standards of application.

[0037] The liquefaction channel is connected to the liquefaction flow channel, allowing gas to pass smoothly through and liquefy gaseous water during the flow process. This improves the efficiency of the entire gas-liquid separation process and enables faster hydrogen purification. By controlling the working state of the refrigerant in the refrigerant flow channel (such as the refrigerant flow rate and temperature), the cooling degree of the gas in the liquefaction channel can be flexibly adjusted, thereby controlling the amount of gaseous water liquefied to meet the requirements of hydrogen water content under different operating conditions, exhibiting strong adaptability and adjustability. Utilizing the refrigerant in the refrigerant flow channel to absorb heat to liquefy gaseous water has good energy utilization efficiency and helps reduce energy consumption in the gas-liquid separation process. At the same time, the heat exchanger 21 can also cool the hydrogen, which helps maintain the hydrogen in a stable state and is more conducive to hydrogen collection and storage.

[0038] Specifically, from the bottom to the top of the cavity, the heat exchanger 21 is positioned above the gas-liquid separator 10, with the first port 211 positioned above the second port 212. The refrigerant flow channel includes a third port 213 and a fourth port 214 positioned opposite each other, with the third port 213 positioned below the fourth port 214. The refrigerant enters the refrigerant flow channel through the third port 213 and flows out through the fourth port 214. The heat exchanger 21 can be a plate heat exchanger 21. The plate heat exchanger 21 has multiple corrugated metal plates inside, allowing hydrogen and gaseous water to exchange heat fully with the refrigerant through the metal plates, liquefying the gaseous water into liquid water. The metal plates increase the turbulence of the fluid, reduce thermal resistance, and improve the heat transfer coefficient, enabling more efficient transfer of heat from the gas in the liquefaction channel to the refrigerant in the refrigerant flow channel, thus liquefying the gaseous water more quickly. Heat exchanger 21 is positioned above gas-liquid separator 10, allowing the gas, after initial separation by gas-liquid separator 10, to naturally enter the liquefaction channel of heat exchanger 21 during its ascent. Within the liquefaction channel, gaseous water is liquefied into liquid water. Due to gravity, the liquid flows downwards more easily, facilitating the return of the separated liquid to gas-liquid separator 10 or subsequent collection devices, thus improving the effect and efficiency of gas-liquid separation. The first port 211 is positioned above the second port 212, allowing the gas to flow downwards within the liquefaction channel, forming a counter-current heat exchange with the cold medium in the cold medium channel. This counter-current heat exchange maintains a larger temperature difference during the heat exchange process, improving heat exchange efficiency and promoting more complete liquefaction of gaseous water. Simultaneously, the downward flow of liquid water under gravity also helps the liquefied small water droplets coalesce into larger droplets, further promoting hydrogen and water separation.

[0039] In one embodiment, each gas-liquid separator 10 includes a housing 14 and an adjusting component 15. The housing 14 is provided with a cavity, an input channel 12, an exhaust channel 13, and a drain channel 16. The drain channel 16 communicates with the cavity. The exhaust channel 13 is located at the top of the cavity, the drain channel 16 is located at the bottom of the cavity, and the input channel 12 is located near the exhaust channel 13. A liquid level detection component 17 is also provided on the housing 14, which is used at least to detect the liquid level in the cavity. The adjusting component 15 is disposed in the drain channel 16. The adjusting component 15 has a first state of closing the drain channel 16 and a second state of opening the drain channel 16. The gas-liquid separation mechanism also includes a controller. Both the liquid level detection component 17 and the adjusting component 15 are electrically connected to the controller. The controller controls the adjusting component 15 to switch between the first state and the second state according to the signal transmitted by the liquid level detection component 17. The exhaust channel 13 is located at the top of the cavity, the drain channel 16 is located at the bottom of the cavity, and the input channel 12 is positioned close to the exhaust channel 13. This arrangement facilitates the natural separation of gas and liquid under gravity. The liquid level detection component 17 can detect the liquid level in the cavity. When the liquid level reaches a certain height, the liquid level detection component 17 transmits a signal to the controller. The controller controls the regulating component 15 to close or open the drain channel 16 based on the received signal, thereby achieving precise control of the draining process. This effectively prevents excessive liquid from entering the exhaust channel 13 and also prevents insufficient liquid from causing hydrogen to flow into the drain channel 16. The electrical connection between the liquid level detection component 17, the regulating component 15, and the controller enables automated operation of the gas-liquid separation mechanism, eliminating the need for frequent manual monitoring and operation. This reduces labor costs and the possibility of human error, improving the stability and reliability of the gas-liquid separation mechanism.

[0040] The regulating component 15 includes a first solenoid valve 151 and a second solenoid valve 152. The first solenoid valve 151 is located in the drain channel 16 and electrically connected to the controller. The controller controls the first solenoid valve 151 to switch between a first state and a second state via a signal transmitted from the liquid level detection component 17. The second solenoid valve 152 is located in the drain channel 16 and between the first solenoid valve 151 and the cavity. The second solenoid valve 152 is electrically connected to the controller, and the controller controls the second solenoid valve 152 to switch between the first state and the second state via a signal transmitted from the liquid level detection component 17. With the first solenoid valve 151 and the second solenoid valve 152 installed on the drain channel 16, if one solenoid valve malfunctions (e.g., fails to close or open normally), the other solenoid valve can still operate normally, maintaining the seal of the drain channel 16 or performing the draining function. This redundant design improves the fault tolerance of the gas-liquid separation mechanism, reduces the risk of failure of the gas-liquid separation mechanism due to the failure of a single solenoid valve, reduces equipment downtime, and improves the reliability and stability of hydrogen production. Furthermore, when drainage is not required, both the first solenoid valve 151 and the second solenoid valve 152 are in their first state (closing the drainage channel 16), forming a double seal. This significantly improves the sealing performance of the drainage channel 16, effectively preventing gas leakage and ensuring the stability of the internal pressure and the purity of hydrogen within the gas-liquid separation mechanism, thus enhancing the safety of equipment operation. The two solenoid valves can be used in different combinations depending on the liquid level. For example, when the liquid level reaches a certain height, the controller can first open the second solenoid valve 152 to drain a portion of the liquid. Once the liquid level drops to a certain level, the first solenoid valve 151 can then be opened to further drain the liquid or maintain the open state of the drainage channel 16. This precise control method allows for more flexible control of the drainage speed and volume, preventing excessively fast or slow drainage from affecting the gas-liquid separation effect.

[0041] Furthermore, the liquid level detection component 17 includes a first liquid level gauge 171, a second liquid level gauge 172, and a third liquid level element 173. From the top to the bottom of the cavity, the first liquid level gauge 171, the second liquid level gauge 172, and the third liquid level element 173 are sequentially spaced on the housing 14 and electrically connected to the controller. Each of the first liquid level gauge 171, the second liquid level gauge 172, and the third liquid level element 173 can detect the position of the liquid level within the cavity. When the first liquid level gauge 171, the second liquid level gauge 172, and the third liquid level element 173 come into contact with the liquid surface, they can each send a signal to the controller. The controller can obtain the position of the liquid level relative to the housing 14 and can control the regulating component 15 based on the liquid level information.

[0042] Furthermore, the cavity includes a vertical chamber and a horizontal chamber. The vertical chamber and the horizontal chamber are interconnected. The outer shell 14 includes a first shell portion 141 and a second shell portion 142. The first shell portion 141 contains a vertical chamber, and the second shell portion 142 contains a horizontal chamber. The first shell portion 141 and the second shell portion 142 are interconnected and enclose to form a cavity. The top of the vertical chamber is connected to the exhaust channel 13, and the bottom of the horizontal chamber is connected to the drain channel. The first level gauge 171 and the second level gauge 172 are connected to the first shell portion 141, and the third level element 173 is connected to the second shell portion 142. After receiving the signals transmitted by the second level gauge 172 and the third level element, the controller controls the regulating component 15 to switch between the first state and the second state. The horizontal chamber in the second shell portion 142 can quickly accumulate liquid, ensuring that there is liquid at the bottom of the cavity, forming a liquid seal on the drain channel 16, preventing hydrogen from flowing out of the drain channel 16. The second housing portion 142 can also reduce the vertical volume of the outer casing 14, reducing the space occupied by the gas-liquid separation mechanism in the vertical space. During the liquid level rise, when the liquid level rises to contact the third liquid level element, the third liquid level element can send a signal to the controller. The controller controls the regulating component 15 to close the drain channel 16, and the liquid continues to accumulate in the cavity to prevent hydrogen from leaking from the drain channel 16. When the liquid level rises to contact the second liquid level gauge 172, the second liquid level gauge 172 can send a signal to the controller. When the liquid level reaches between the second liquid level gauge 172 and the third liquid level element, the controller controls the regulating component 15 to open, and the liquid can be discharged from the drain channel 16. If the liquid level rises to contact the first liquid level gauge 171, the first liquid level gauge 171 can send a signal to the controller. At this time, the liquid level is too high, and the controller controls the regulating component 15 to open, so that the liquid can be discharged more quickly, causing the liquid level to drop and preventing the liquid from entering the exhaust channel 13.

[0043] In one embodiment, each gas-liquid separator 10 further includes a one-way valve 18. The one-way valve 18 is disposed in the drain channel and located between the regulating component 15 and the cavity, with the flow direction of the one-way valve 18 from the cavity towards the regulating component 15. The one-way valve 18 ensures that liquid can only flow from the cavity to the regulating component 15 and cannot flow in the reverse direction. When the regulating component 15 closes the drain channel 16, the one-way valve 18 prevents liquid already discharged into the drain channel 16 from flowing back into the cavity. This helps maintain the gas-liquid separation effect, preventing separated liquid from mixing with the gas again and ensuring the purity of hydrogen. During the gas-liquid separation process, the pressure inside the gas-liquid separator 10 will fluctuate. The one-way valve 18 prevents liquid backflow, avoiding abnormal pressure changes inside the gas-liquid separator 10 due to liquid backflow, and helps maintain stable system pressure.

[0044] In one embodiment, the gas-liquid separator 10 includes two sets. The exhaust channel 13 of the first set of gas-liquid separators 10 is interconnected with the input channel 12 of the second set of gas-liquid separators 10. A pressure valve 19 is provided on the exhaust channel 13 of the second set of gas-liquid separators 10. The pressure valve 19 is used to detect the gas pressure in the exhaust channel 13. When the gas pressure is not greater than a predetermined value, the pressure valve 19 closes the exhaust channel 13. The input channel 12 of the first set of gas-liquid separators 10 introduces a gas-liquid mixture of hydrogen, gaseous water, and liquid water into the cavity. Under the action of gravity, the hydrogen and gaseous water enter the liquefaction channel, causing the gaseous water to liquefy into liquid water. The hydrogen and liquid water enter the cavity of the second set of gas-liquid separators 10 from the input channel 12. The liquefied liquid water is discharged from the drain channel 16, and the hydrogen enters the exhaust channel 13 of the second set of gas-liquid separators 10. When the gas pressure in the exhaust channel 13 of the second gas-liquid separator 10 reaches a predetermined value, the pressure valve 19 opens to discharge hydrogen, ensuring that there is sufficient pressure inside the second gas-liquid separator 10 for gas-liquid separation, and that the liquid has sufficient power to flow smoothly out of the drain channel 16, further improving the efficiency of gas-liquid separation and ensuring that the hydrogen has high purity.

[0045] Furthermore, the first gas-liquid separator 10 also includes a maintenance channel 131. The maintenance channel 131 is connected to the cavity and located near the exhaust channel 13, and a maintenance valve 132 is installed on the maintenance channel 131. When the pressure is abnormal, or when the internal components of the gas-liquid separation mechanism malfunction or require cleaning and maintenance, hydrogen can be quickly discharged through the maintenance channel 131 by opening the maintenance valve 132, facilitating maintenance of the gas-liquid separation mechanism by personnel and effectively preventing safety problems caused by the instability of hydrogen.

[0046] On the other hand, this application also provides a hydrogen production device, which includes the aforementioned gas-liquid separation mechanism. Therefore, this hydrogen production device includes all the technical effects of the aforementioned gas-liquid separation mechanism. Since the technical effects of the gas-liquid separation mechanism have already been described in detail above, they will not be repeated here.

[0047] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0048] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0049] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A gas-liquid separation mechanism, characterized in that, include: A gas-liquid separator (10) is provided, comprising at least two sets of gas-liquid separators (10). Each gas-liquid separator (10) includes a cavity, an input channel (12), and an exhaust channel (13). The input channel (12) and the exhaust channel (13) of each gas-liquid separator (10) are interconnected with the cavity. The exhaust channel (13) of at least one set of gas-liquid separators (10) is interconnected with the input channel (12) of at least another set of gas-liquid separators (10) to form a liquefaction channel. A liquefaction component (20) is disposed in the liquefaction channel, the liquefaction component (20) being used to convert at least a portion of the gas in the liquefaction channel into a liquid.

2. The gas-liquid separation mechanism according to claim 1, characterized in that, The liquefaction component (20) includes: The heat exchanger (21) is provided with a liquefaction channel and a refrigerant channel. The first port (211) of the liquefaction channel is connected to the exhaust channel (13) of at least one set of gas-liquid separators (10). The second port (212) of the liquefaction channel opposite to the first port (211) is connected to the input channel (12) of at least another set of gas-liquid separators (10). The refrigerant channel is provided with a refrigerant medium, which absorbs heat from the liquefaction channel to convert at least a portion of the gas in the liquefaction channel into liquid.

3. The gas-liquid separation mechanism according to claim 1, characterized in that, Each of the gas-liquid separators (10) includes: The outer casing (14) is provided with the cavity, the input channel (12), the exhaust channel (13) and the drain channel (16). The drain channel (16) is connected to the cavity. The exhaust channel (13) is located at the top of the cavity. The drain channel (16) is located at the bottom of the cavity. The input channel (12) is located close to the exhaust channel (13). The outer casing (14) is also provided with a liquid level detection component (17). The liquid level detection component (17) is used at least to detect the liquid level position of the liquid in the cavity. An adjusting component (15) is disposed on the drain channel (16). The adjusting component (15) has a first state of closing the drain channel (16) and a second state of opening the drain channel (16). The gas-liquid separation mechanism further includes a controller. The liquid level detection component (17) and the adjustment component (15) are both electrically connected to the controller. The controller controls the adjustment component (15) to switch between the first state and the second state according to the signal transmitted by the liquid level detection component (17).

4. The gas-liquid separation mechanism according to claim 3, characterized in that, The liquid level detection component (17) includes a first liquid level gauge (171), a second liquid level gauge (172), and a third liquid level element (173). From the top end of the cavity to the bottom end of the cavity, the first liquid level gauge (171), the second liquid level gauge (172), and the third liquid level element (173) are sequentially spaced on the housing (14) and electrically connected to the controller respectively.

5. The gas-liquid separation mechanism according to claim 4, characterized in that, The cavity includes a vertical chamber and a horizontal chamber, which are interconnected. The outer shell (14) includes a first shell part (141) and a second shell part (142). The vertical chamber is disposed in the first shell part (141), and the horizontal chamber is disposed in the second shell part (142). The first shell part (141) and the second shell part (142) are interconnected and enclose the cavity. The top of the vertical chamber is connected to the exhaust channel (13), and the bottom of the horizontal chamber is connected to the drain channel (16). The first level gauge (171) and the second level gauge (172) are connected to the first shell part (141), and the third level element (173) is connected to the second shell part (142). After receiving signals from the second level gauge (172) and the third level element, the controller controls the regulating component (15) to switch between the first state and the second state.

6. The gas-liquid separation mechanism according to any one of claims 3 to 5, characterized in that, The adjusting component (15) includes: The first solenoid valve (151) is disposed in the drain channel (16) and electrically connected to the controller. The controller controls the first solenoid valve (151) to switch between the first state and the second state through the signal transmitted by the liquid level detection component (17). The second solenoid valve (152) is disposed in the drain channel (16) and between the first solenoid valve (151) and the cavity. The second solenoid valve (152) is electrically connected to the controller. The controller controls the second solenoid valve (152) to switch between the first state and the second state through the signal transmitted by the liquid level detection component (17).

7. The gas-liquid separation mechanism according to any one of claims 3 to 5, characterized in that, Each of the gas-liquid separators (10) further includes a one-way valve (18), which is disposed in the drain channel and located between the regulating component (15) and the cavity. The flow direction of the one-way valve (18) is from the cavity toward the regulating component (15).

8. The gas-liquid separation mechanism according to any one of claims 1 to 5, characterized in that, The gas-liquid separator (10) includes two sets. The exhaust channel (13) of the first set of gas-liquid separators (10) is connected to the input channel (12) of the second set of gas-liquid separators (10). A pressure valve (19) is provided on the exhaust channel (13) of the second set of gas-liquid separators (10). The pressure valve (19) is used to detect the gas pressure in the exhaust channel (13). When the gas pressure is not greater than a predetermined value, the pressure valve (19) closes the exhaust channel (13).

9. The gas-liquid separation mechanism according to claim 8, characterized in that, The first gas-liquid separator (10) further includes a maintenance channel (131), which is connected to the cavity and located near the exhaust channel (13). A maintenance valve (132) is provided on the maintenance channel (131).

10. A hydrogen production device, characterized in that, The hydrogen production equipment includes the gas-liquid separation mechanism as described in any one of claims 1 to 9.

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