Purification device and electrolytic hydrogen production system

By installing a gas distributor in the purification chamber and utilizing the design of the guide tube and distribution coil, the swirling motion of the gas-liquid mixture is achieved, solving the problem of poor gas-liquid separation and washing effect in existing purification devices, and improving the purification effect and reliability of the electrolytic hydrogen production system.

CN224056986UActive Publication Date: 2026-03-31SUNGROW HYDROGEN SCI &TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing purification devices have long gas evolution times in electrolytic hydrogen production systems, violent internal liquid movement, and severe alkali entrainment, resulting in poor gas-liquid separation and washing effects, which reduces the practicality and reliability of the purification device.

Method used

A gas distributor is installed in the purification chamber. The gas-liquid mixture is guided to the jet orifice by the guide tube and the distribution coil. The gas-liquid mixture is made to swirl in the purification chamber through the jet orifice. The centrifugal rotation and squeezing action of the swirling solution reduces the formation of alkaline water mist, promotes bubble floating and gas-liquid separation, and improves the washing effect.

Benefits of technology

By effectively utilizing the kinetic energy of the gas-liquid mixture, the violent agitation of the solution is reduced, the uniform mixing and separation efficiency of the gas-liquid mixture is improved, and the practicality and reliability of the purification device are enhanced.

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Abstract

The embodiment of the utility model discloses a purification device and an electrolytic hydrogen production system, and relates to the technical field of new energy equipment, the purification device comprises a shell and a gas distributor, the shell is internally provided with a purification cavity, and the shell is provided with a gas inlet hole and a gas outlet hole which are communicated with the purification cavity; the gas distributor is arranged in the purification cavity and comprises a flow guide pipe and a distribution coil pipe, one end of the flow guide pipe is communicated with the gas inlet hole, the other end of the flow guide pipe is connected with the distribution coil pipe, the distribution coil pipe is provided with jet flow holes, and the inner diameter of the flow guide pipe is gradually reduced in the flow direction of a flow field. According to the technical scheme provided by the embodiment of the invention, the gas-liquid separation and washing effects of the purification device are improved, and the practicability and the structural reliability of the purification device are improved.
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Description

Technical Field

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

[0002] In related technologies, electrolytic hydrogen production systems can typically utilize purification devices to perform gas-liquid separation and washing on the gas-liquid mixture generated by the preparation device, ensuring the purity of the hydrogen output from the electrolytic hydrogen production system.

[0003] However, most existing purification devices suffer from problems such as long gas evolution time, violent internal liquid movement, and severe alkali entrainment, resulting in poor gas-liquid separation and washing effects, which reduces the practicality and reliability of the purification device. Utility Model Content

[0004] Several embodiments in this application propose a purification device and an electrolytic hydrogen production system, aiming to improve the gas-liquid separation and washing effect of the purification device, and enhance the practicality and structural reliability of the purification device.

[0005] One embodiment of this application proposes a purification device including a housing and a gas distributor. The housing has a purification chamber and an air inlet and an exhaust outlet communicating with the purification chamber. The gas distributor is disposed in the purification chamber and includes a guide tube and a distribution coil. One end of the guide tube is connected to the air inlet, and the other end of the guide tube is connected to the distribution coil. The distribution coil has jet holes, and the inner diameter of the guide tube gradually decreases along the flow direction.

[0006] In one embodiment, the jet orifice includes a plurality of first jet orifices, which are arranged around the outer peripheral surface of the distribution coil and spaced apart along the flow direction within the distribution coil.

[0007] In one embodiment, the extension direction of the first jet hole is set at an angle to the flow direction of the flow field in the distribution coil.

[0008] In one embodiment, the jet orifice includes a plurality of second jet orifices, which are disposed on the side of the distribution coil opposite to the guide pipe and are arranged at intervals along the flow direction within the distribution coil.

[0009] In one embodiment, the extension direction of the second jet hole is set at an angle to the flow direction of the flow field in the distribution coil.

[0010] In one embodiment, the distribution coil includes at least two ring tubes, which are connected end to end and stacked sequentially, with each ring tube having a jet hole on its periphery.

[0011] In one embodiment, the outer diameters of at least two of the ring tubes are arranged to increase sequentially along the stacking direction.

[0012] In one embodiment, the housing is further provided with an overflow hole communicating with the purification chamber, the overflow hole being located above the distribution coil.

[0013] In one embodiment, the housing includes a cylindrical body and a cap, the cap being fastened to the cylindrical body and forming the purification chamber together with the cylindrical body, the exhaust port being located on the cap, and the air inlet being located on the cylindrical body.

[0014] An embodiment of this application also proposes an electrolytic hydrogen production system, characterized in that the electrolytic hydrogen production system includes a preparation device and a purification device, wherein the purification device is the purification device described above, and the preparation device is connected to the purification device.

[0015] In several embodiments provided in this application, a gas distributor is installed inside the purification chamber. The gas distributor's guide tube guides the input gas-liquid mixture into the distribution coil. The gradually narrowing guide tube accelerates and converges the gas-liquid mixture, effectively utilizing its kinetic energy. As the gas-liquid mixture flows within the distribution coil, it is jetted through the jet holes toward the inner wall of the purification chamber into the washing solution. This causes the gas-liquid mixture to centrifugally rotate the solution within the purification chamber, utilizing its kinetic energy, reducing violent turbulence, and minimizing the formation of alkaline water mist. This allows for more uniform mixing of the gas-liquid mixture and the washing solution, improving the washing effect. Simultaneously, the swirling solution better compresses and breaks bubbles within the solution, promoting faster surface precipitation and achieving more efficient gas-liquid separation. This significantly improves the practicality and reliability of the purification device. Attached Figure Description

[0016] 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.

[0017] Figure 1 A cross-sectional view of an embodiment of the purification apparatus provided in this application;

[0018] Figure 2 for Figure 1 A cross-sectional view of an embodiment of a gas distributor for a purification device;

[0019] Figure 3 for Figure 2 Cross-sectional view at point AA;

[0020] Figure 4 for Figure 2 Cross-sectional view at point BB;

[0021] Figure 5 for Figure 4 A magnified view of a section at point C.

[0022] Explanation of icon numbers:

[0023] 100. Purification device; 10. Shell; 11. Purification chamber; 111. Air inlet; 113. Air outlet; 115. Overflow outlet; 117. Liquid drain outlet; 13. Cylinder; 15. Cover; 30. Gas distributor; 31. Guide tube; 33. Distribution coil; 331. Jet orifice; 3311. First jet orifice; 3313. Second jet orifice; 333. Ring tube. Detailed Implementation

[0024] 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.

[0025] It should be noted that if multiple embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators 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 indicators will also change accordingly.

[0026] 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.

[0027] In related technologies, electrolytic hydrogen production systems typically utilize purification devices to purify the gas-liquid mixture generated by the preparation device through gas-liquid separation and washing, ensuring the purity of the hydrogen output from the electrolytic hydrogen production system. However, most existing purification devices suffer from problems such as long gas evolution times, violent internal liquid movement, and severe alkali entrainment, resulting in poor gas-liquid separation and washing effects, thus reducing the practicality and reliability of the purification device.

[0028] It should be noted that most current purification devices utilize only natural gravity separation to separate gas-liquid mixtures. This method is prone to the aggregation of small bubbles during separation, and the time for gas to emerge from the liquid surface is relatively long. Furthermore, the kinetic energy of the gas-liquid mixture causes violent agitation when the washing solution is introduced, hindering the reduction of the washing solution's temperature and resulting in poor washing effectiveness. The agitation also easily leads to the formation of water mist from some of the alkaline solution, resulting in significant alkaline entrainment in the purified output gas and affecting the yield of the output gas from the electrolytic hydrogen production system. To address these issues, this application proposes a purification device.

[0029] Please see Figure 1 In one embodiment of this application, the purification device 100 includes a housing 10 and a gas distributor 30. The housing 10 is provided with a purification chamber 11 and an air inlet 111 and an exhaust port communicating with the purification chamber 11. The gas distributor 30 is disposed in the purification chamber 11 and includes a guide tube 31 and a distribution coil 33. One end of the guide tube 31 is connected to the air inlet 111, and the other end of the guide tube 31 is connected to the distribution coil 33. The distribution coil 33 is provided with a jet hole 331.

[0030] In this application, the housing 10 may be, but is not limited to, a container with a certain sealing effect such as a tank or bottle. The input gas-liquid mixture can be separated and washed in the purification chamber 11 formed inside the housing 10, so that the separated gas is output from the exhaust port of the housing 10 and the separated liquid is retained in the purification chamber 11, thereby achieving a better purification effect of the purification device 100.

[0031] The purification device 100 can contain a certain amount of washing solution at the bottom of the purification chamber 11, so that the gas-liquid mixture is fed into the washing solution to remove impurities such as alkali, and the gas is released into the purification chamber 11 through the solution to achieve gas-liquid separation of the gas-liquid mixture. By installing a gas distributor 30 inside the purification chamber 11, the distribution coil 33 of the gas distributor 30 can be placed in the washing solution at the bottom of the purification chamber 11. The air inlet 111 is connected by a guide pipe 31, and the guide pipe 31 is connected to the distribution coil 33. The gas-liquid mixture can be transported from the air inlet 111 to the distribution coil 33 through the guide pipe 31. Under the guiding effect of the distribution coil 33, the movement trend of the gas-liquid mixture can be guided, so that the gas-liquid mixture has a swirling movement trend. The gas-liquid mixture can be jetted into the washing solution through the jet hole 331 in the distribution coil 33 towards the inner wall of the shell 10. Then, under the action of the jet of the gas-liquid mixture, the solution in the purification chamber 11 can be driven to centrifugally rotate. The kinetic energy of the gas-liquid mixture can be converted into the kinetic energy of the swirling solution through the jet action, effectively reducing the violent turbulence of the solution and reducing the formation of alkaline water mist in the purification chamber 11. At the same time, the gas-liquid mixture and the washing solution can be better mixed evenly, achieving a better washing effect on the gas-liquid mixture.

[0032] The jet orifice 331 can be arranged in multiple holes around the periphery of the distribution coil 33 to allow the gas-liquid mixture to diffuse and jet into the solution, thereby stabilizing the gas-liquid mixture and driving the solution to centrifugal rotation. Alternatively, the jet orifice 331 can be located at the end of the distribution coil 33, using the distribution coil 33 to guide the gas-liquid mixture, allowing it to be jetted into the solution in a swirling flow within the distribution coil 33, thus better utilizing the kinetic energy of the gas-liquid mixture to drive the solution to centrifugal rotation. Of course, there are many other ways to arrange the jet orifice 331 within the distribution coil 33, and this application does not limit this to any particular arrangement, as long as the jet orifice 331 can be used to jet the gas-liquid mixture into the solution.

[0033] Under the centrifugal swirling motion of the solution in the purification chamber 11, the small bubbles formed by the gas in the gas-liquid mixture can move towards the inner wall of the shell 10 due to centrifugal force, so that the small bubbles can aggregate into large bubbles and float to the surface of the liquid better; and the swirling solution can generate an inward squeezing force, which is conducive to the bursting of bubbles in the solution, and can also drive the bubbles to float, accelerate the gas precipitation to the surface of the liquid, effectively improve the gas-liquid separation rate of the gas-liquid mixture, and achieve a better gas-liquid separation effect.

[0034] In one embodiment of this application, a gas distributor 30 is installed in the purification chamber 11. The gas distributor 30 guides the input gas-liquid mixture to the distribution coil 33 through the guide tube 31. The gradually narrowing guide tube accelerates the gas-liquid mixture, effectively utilizing its kinetic energy. As the gas-liquid mixture flows in the distribution coil 33, it is jetted into the washing solution through the jet hole 331 towards the inner wall of the purification chamber 11. This causes the gas-liquid mixture to centrifugally rotate the solution in the purification chamber 11, utilizing its kinetic energy, reducing violent turbulence, and decreasing the formation of alkaline water mist. This allows for more uniform mixing of the gas-liquid mixture and washing solution, improving the washing effect. Simultaneously, the swirling solution can better compress and break bubbles in the solution, promoting faster surface precipitation and achieving more efficient gas-liquid separation. This effectively improves the practicality and reliability of the purification device 100.

[0035] See Figure 1 In one embodiment of this application, the inner diameter of the guide pipe 31 is set to gradually decrease along the flow direction of the flow field.

[0036] In this embodiment, the guide pipe 31 can be configured as a tapered inner pipe with a wider top and a narrower bottom, so that the inner diameter of the guide pipe 31 gradually decreases along the flow direction of the gas-liquid mixture. This flow direction can be referenced... Figure 1 The direction indicated by the dotted arrow inside the guide tube 31 is conducive to connecting the larger inner diameter tube end to the air inlet 111, ensuring that a large flow of gas-liquid mixture is input into the gas distributor 30. As the gas-liquid mixture flows through the guide tube 31 to the distribution coil 33, the guide tube 31, with its gradually decreasing inner diameter, can guide and accelerate the gas-liquid mixture, effectively increasing the flow velocity of the gas-liquid mixture in the distribution coil 33. This allows the gas-liquid mixture to be better jetted into the solution, driving the solution to centrifugal rotation, achieving better washing and gas-liquid separation effects in the purification device 100, and further improving the practicality and reliability of the purification device 100.

[0037] See Figure 2 and Figure 4 In one embodiment of this application, the jet hole 331 includes a plurality of first jet holes 3311, which are arranged around the outer peripheral surface of the distribution coil 33 and are spaced apart along the flow direction of the flow field in the distribution coil 33.

[0038] In this embodiment, the jet orifice 331 may include a plurality of first jet orifices 3311 surrounding the outer circumferential surface of the distribution coil 33, and the plurality of first jet orifices 3311 are arranged at intervals along the flow direction within the distribution coil 33. Under the action of the plurality of first jet orifices 3311, the gas-liquid mixture can be diffused and jetted outward from the outer circumferential surface of the distribution coil 33, so that the gas-liquid mixture can be more fully jetted into the solution within the purification chamber 11. This facilitates a more balanced centrifugal rotation of the solution, better reduces the violent movement of the solution, and achieves a more uniform mixing and washing effect between the gas-liquid mixture and the washing solution. At the same time, the arrangement of a plurality of first jet orifices 3311 surrounding the outer circumferential surface of the distribution coil 33 also helps to make the kinetic energy distribution of the gas-liquid mixture on the distribution coil 33 more uniform, reduces stress concentration on the distribution coil 33, and better improves the service life of the gas distributor 30.

[0039] See Figure 4 and Figure 5 In one embodiment of this application, the extension direction of the first jet hole 3311 is set at an angle to the flow direction of the flow field in the distribution coil 33.

[0040] In this embodiment, the extension direction of the first jet hole 3311 is also the flow direction of the gas-liquid mixture when it passes through the first jet hole 3311, so that the gas-liquid mixture can be jetted into the solution along the extension direction of the first jet hole 3311, thus enabling the first jet hole 3311 to play a certain guiding effect. By setting the extension direction of the first jet hole 3311 at an angle to the smooth flow direction in the distribution coil 33, the first jet hole 3311 can be set as an inclined hole, so that when the gas-liquid mixture is jetted outward through the first jet hole 3311, it can flow obliquely toward the inner wall of the purification chamber 11, thereby allowing the gas-liquid mixture to flow more smoothly around the inner wall of the purification chamber 11, better utilizing the kinetic energy of the gas-liquid mixture to drive the centrifugal rotation of the solution, effectively reducing the kinetic energy loss of the gas-liquid mixture, and further improving the practicality and structural reliability of the purification device 100.

[0041] The angle between the extension direction of the first jet hole 3311 and the flow direction of the flow field in the distribution coil 33 can be less than 90°. For example, it can be 75°, 70°, 65°, 60°, 45°, 30°, etc. Using this angle setting can make the gas-liquid mixture flow more smoothly into the first jet hole 3311 when it flows in the distribution coil 33, better reduce the kinetic energy loss of the gas-liquid mixture, ensure that the gas-liquid mixture can better drive the solution to centrifugal rotation, and achieve better gas-liquid separation and washing effects.

[0042] See Figure 3 and Figure 4In one embodiment of this application, the jet hole 331 includes a plurality of second jet holes 3313, which are disposed on the side of the distribution coil 33 opposite to the guide pipe 31 and are arranged at intervals along the flow direction of the flow field in the distribution coil 33.

[0043] In this embodiment, the jet orifice 331 may include a plurality of second jet orifices 3313. The second jet orifices 3313 may be arranged on the side surface of the distribution coil 33 opposite to the guide pipe 31, so that the plurality of second jet orifices 3313 are arranged sequentially along the flow direction in the distribution coil 33. The plurality of second jet orifices 3313 can be used to uniformly jet the gas-liquid mixture toward the inner wall of the purification chamber 11 into the solution, so that the gas-liquid mixture can be fully mixed with the solution in the purification chamber 11, and the kinetic energy of the gas-liquid mixture can be better applied to the solution to drive the solution to centrifugal rotation, effectively reducing the violent movement of the solution, and achieving better gas-liquid separation and washing effects of the gas-liquid mixture.

[0044] By arranging multiple second jet holes 3313 on the side of the distribution coil 33 opposite to the guide pipe 31, the movement trend of the gas-liquid mixture in the gas distributor 30 can be better utilized to make the gas-liquid mixture enter the solution through the second jet holes 3313. This helps to better reduce the kinetic energy loss of the gas-liquid mixture, make full use of the kinetic energy of the gas-liquid mixture to drive the centrifugal rotation of the solution, and further improve the practicality and structural reliability of the purification device 100.

[0045] See Figure 3 In one embodiment of this application, the extension direction of the second jet hole 3313 is set at an angle to the flow direction of the flow field in the distribution coil 33.

[0046] In this embodiment, the extension direction of the second jet orifice 3313 can be the flow direction of the gas-liquid mixture through the second jet orifice 3313, so that the second jet orifice 3313 can play a certain guiding role in the jet direction of the gas-liquid mixture entering the solution, allowing the gas-liquid mixture to better drive the solution to centrifugal rotation. By setting the extension direction of the second jet orifice 3313 at an angle to the flow direction of the flow field in the distribution coil 33, the second jet orifice 3313 can be set on one side of the distribution coil 33 in an oblique manner, which is beneficial for the gas-liquid mixture to enter the solution at a certain inclined angle when passing through the second jet orifice 3313, so that the solution can be better driven to centrifugal rotation under the jet action of the gas-liquid mixture, promoting the uniform mixing of the gas-liquid mixture and the solution and the precipitation of gas, thereby achieving better gas-liquid separation and washing effects of the purification device 100.

[0047] The angle between the extension direction of the second jet hole 3313 and the flow direction of the flow field in the distribution coil 33 can be less than 90°. For example, it can be 75°, 70°, 65°, 60°, 45°, 30°, etc. Using this angle setting can make the gas-liquid mixture flow more smoothly into the second jet hole 3313 when it flows in the distribution coil 33, better reduce the kinetic energy loss of the gas-liquid mixture, ensure that the gas-liquid mixture can better drive the solution to centrifugal rotation, and achieve better gas-liquid separation and washing effects.

[0048] In addition, in some embodiments, the distribution coil 33 may be provided with a plurality of first jet holes 3311 and a plurality of second jet holes 3313. By having the plurality of first jet holes 3311 surround the outer circumferential surface of the distribution coil 33 and the plurality of second jet holes 3313 arranged on the side of the distribution coil 33 opposite to the guide pipe 31, the area of ​​the distribution coil 33 for jetting the gas-liquid mixture can be increased, so that the gas-liquid mixture can be more fully jetted into the solution in the purification chamber 11, achieving a more uniform mixing effect between the gas-liquid mixture and the washing solution. At the same time, the rotation speed of the gas-liquid mixture driving the solution to centrifuge can be increased, so that the gas can be released from the liquid surface more quickly, further improving the washing effect and gas-liquid separation efficiency, and achieving better gas purification operation of the purification device 100.

[0049] See Figure 1 and Figure 2 In one embodiment of this application, the distribution coil 33 includes at least two ring tubes 333, which are connected end to end and stacked in sequence, and each ring tube 333 is provided with a jet hole 331 on its periphery.

[0050] In this embodiment, the distribution coil 33 may include at least two ring tubes 333, which can be connected end to end and stacked sequentially. One of the ring tubes 333 can be connected to the guide tube 31, and the outermost ring tube 333 can be connected to the guide tube 31, so that the distribution coil 33 forms a multi-layer coil structure similar to a serpentine coil. This is beneficial to increase the guiding space of the distribution coil 33 for the gas-liquid mixture. At this time, jet holes 331 can be provided on the periphery of each ring tube 333. Through multiple ring tubes 333, the distribution coil 33 has a larger jet area, which is beneficial to make the gas-liquid mixture more uniformly jetted into the solution, ensuring that the kinetic energy of the gas-liquid mixture can be applied to the entire solution, better driving the centrifugal rotation of the solution, and improving the washing effect and gas-liquid separation effect of the purification device 100.

[0051] Under the action of the multi-layer ring tube 333, the distribution coil 33 can better correspond to the depth setting of the solution, so that the solution close to the bottom wall of the purification chamber 11 can also be stably subjected to the kinetic energy of the gas-liquid mixture, so that the gas-liquid mixture can be more fully mixed with the solution, and the solution can achieve faster centrifugal rotation, effectively reducing the violent turbulence of the solution, achieving a more stable and reliable gas-liquid separation effect, and further improving the structural stability and reliability of the purification device 100.

[0052] See Figure 1 and Figure 2 In one embodiment of this application, the outer diameters of at least two ring tubes 333 are arranged to increase sequentially along the stacking direction.

[0053] In this embodiment, by sequentially increasing the outer diameter of at least two annular tubes 333 along the stacking direction, the outer diameter of the annular tube 333 near the liquid surface can be smaller than the outer diameter of the annular tube 333 near the bottom wall of the purification chamber 11. This allows the gas-liquid mixture jetting at the bottom of the solution to better adhere to the inner wall of the purification chamber 11, enabling the solution to centrifugally rotate and form a more stable vortex. This allows the gas-liquid mixture to mix more evenly with the solution, while also allowing the centrifugally rotating solution to flow inward more effectively, promoting the flow and bursting of bubbles in the solution, and accelerating the gas precipitation from the liquid surface. This further improves the washing effect and gas-liquid separation effect of the purification device 100.

[0054] See Figure 1 In one embodiment of this application, the housing 10 is further provided with an overflow hole 115 communicating with the purification chamber 11, and the overflow hole 115 is located above the distribution coil 33.

[0055] In this embodiment, by providing an overflow hole 115 above the distribution coil 33, the overflow hole 115 can be positioned higher than the solution level in the purification chamber 11 on the housing 10. The overflow hole 115 can maintain the liquid level in the housing 10 at a certain height, which is beneficial when the solution is centrifugally rotated by the kinetic energy of the gas-liquid mixture. The solution that has swirled to the position of the overflow hole 115 can be discharged through the overflow hole 115, avoiding the solution from overflowing through the exhaust hole 113 due to excessive swirling height. This ensures the purity of the purified output gas of the purification device 100 and achieves a more stable and reliable gas-liquid separation effect of the purification device 100.

[0056] Reference Figure 1 In some embodiments, the bottom of the housing 10 may also be provided with a drain hole 117 that communicates with the purification chamber 11. The washing solution for processing a certain amount of gas-liquid mixture in the purification chamber 11 can be discharged through the drain hole 117, which is beneficial to better realize the continuous operation of the purification device 100 and further improve the practicality and reliability of the purification device 100.

[0057] Furthermore, the housing 10 can be formed by combining the cylinder 13 and the cover 15. This modular design facilitates maintenance and repair of the housing 10, and also allows for easier installation and maintenance of the gas distributor 30 within the housing 10, further improving the ease of assembly and disassembly and practicality of the purification device 100. The exhaust port 113 can be located on the cover 15, and the inlet port 111 can be located on the cylinder 13, facilitating the placement of the purification device 100 within an electrolytic hydrogen production system.

[0058] This application also proposes an electrolytic hydrogen production system, which includes a preparation device and a purification device 100. The specific structure of the purification device 100 is as described in the above embodiments. Since the electrolytic hydrogen production system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0059] The electrolytic hydrogen production system can connect the output end of the preparation device to the air inlet 111 of the purification device 100, so that the gas-liquid mixture generated by the preparation device can be stably transported to the purification device 100 for purification. At the exhaust port 113 of the purification device 100, a device for further gas processing of the electrolytic hydrogen production system can be connected to enable the electrolytic hydrogen production system to output gas with better purity, thus meeting the preparation requirements of the electrolytic hydrogen production system.

[0060] 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. A purification device, characterized in that, The application relates to an electrolytic hydrogen production system. The shell is internally provided with a purification cavity, and is provided with an air inlet hole and an air outlet hole communicating with the purification cavity. The gas distributor is arranged in the purification cavity and comprises a flow guide pipe and a distribution disc pipe.

2. The purification device of claim 1, wherein, The first jet holes are arranged on the outer circumferential surface of the distribution disc pipe and are arranged in a spaced manner along the flow direction of the flow field in the distribution disc pipe.

3. The purification device of claim 2, wherein, The first jet holes are arranged at an angle with the flow direction of the flow field in the distribution disc pipe.

4. The purification device of claim 1, wherein, The second jet holes are arranged on the side of the distribution disc pipe opposite to the flow guide pipe and are arranged in a spaced manner along the flow direction of the flow field in the distribution disc pipe.

5. The purification device of claim 4, wherein, The second jet holes are arranged at an angle with the flow direction of the flow field in the distribution disc pipe.

6. The purification device of any one of claims 1 to 5, wherein, The distribution disc pipe comprises at least two ring pipes which are connected in a head-to-tail mode and are arranged in a stacked mode.

7. The purification device of claim 6, wherein, The outer diameters of the at least two ring pipes are arranged in a gradually increasing mode along the stacking direction.

8. The purification device of any one of claims 1 to 5, wherein, The shell is further provided with an overflow hole communicating with the purification cavity, and the overflow hole is arranged above the distribution disc pipe.

9. The purification device of any one of claims 1 to 5, wherein, The shell comprises a barrel and a cover, the cover is buckled to the barrel, and the barrel and the cover form the purification cavity.

10. An electrolytic hydrogen production system, characterized by, The electrolytic hydrogen production system comprises a preparation device and a purification device, and the purification device is the purification device as claimed in any one of claims 1 to 9. The preparation device is connected with the purification device.