Hydrogen production system

By introducing a pollution collection structure and a turbulence generator into the hydrogen production system, the problem of clogging of the filter device caused by impurity accumulation was solved, the electrolysis efficiency and water purity were improved, and the system's adaptability to the volatility of renewable energy was enhanced.

CN223386241UActive Publication Date: 2025-09-26SUNGROW HYDROGEN SCI &TECH CO LTD
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Patent Information

Application Number
CN202422602323.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-25
Publication Date
2025-09-26
Estimated Expiration
2034-10-25

AI Technical Summary

Technical Problem

In existing hydrogen production systems, impurities accumulate before pure water enters the electrolytic cell, causing clogging of the filtration device and affecting the electrolysis efficiency. In addition, the ion exchange resin is easily damaged, and impurities enter the electrolytic cell and damage the cell body.

Method used

The liquid inlet pipe adopts a sewage collection structure, including positive and negative plates arranged opposite to each other, which carry positive and negative charges and adsorb anionic and cationic impurities in the water. The serrated structure and turbulence generator are used to improve the impurity adsorption effect. Combined with the ion exchange device and gas-liquid separator, the water purity and flow rate are enhanced.

Benefits of technology

Effectively reduce the risk of impurity blockage, improve electrolysis efficiency and water purity, reduce the risk of impurities entering the electrolytic cell, and enhance adaptability to the volatility of renewable energy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hydrogen production system, and relates to the technical field of hydrogen production, and the hydrogen production system comprises an electrolytic bath, a liquid inlet pipe and a power supply; the electrolytic bath is provided with a liquid inlet; one end of the liquid inlet pipe is communicated with the liquid inlet, and the other end is communicated with a water supply source; the liquid inlet pipe comprises a dirt collecting part, and the dirt collecting part comprises a positive plate and a negative plate which are oppositely arranged; the positive electrode of the power supply is electrically connected with the positive plate, and the negative electrode of the power supply is electrically connected with the negative plate. According to the technical scheme, the problem that many impurities are accumulated at the front end of the electrolytic bath can be solved.
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Description

Technical Field

[0001] The present application relates to the field of hydrogen production technology, and in particular to a hydrogen production system. Background Art

[0002] In some hydrogen production systems, pure water is heated before entering the electrolyzer and ion exchange resin is used to adsorb ions on the circulating water during the circulation process to improve the purity of the electrolyzed water. A filtration device is then connected to the back end for filtration. However, the filtration device often becomes clogged, resulting in a slowdown in water flow and reduced electrolysis efficiency. Utility Model Content

[0003] The main purpose of this application is to propose a hydrogen production system, which aims to improve the problem of a large amount of impurities accumulated at the front end of the electrolyzer.

[0004] To achieve the above-mentioned purpose, the hydrogen production system proposed in the present application includes an electrolytic cell, a liquid inlet pipe and a power supply; the electrolytic cell has a liquid inlet; one end of the liquid inlet pipe is connected to the liquid inlet, and the other end is connected to a water supply source; the liquid inlet pipe includes a sewage collection portion, and the sewage collection portion includes a positive plate and a negative plate arranged opposite to each other; the positive electrode of the power supply is electrically connected to the positive plate, and the negative electrode of the power supply is electrically connected to the negative plate.

[0005] In one embodiment, a wall surface of the positive electrode plate facing the negative electrode plate is provided with a serrated structure; and / or a wall surface of the negative electrode plate facing the positive electrode plate is provided with a serrated structure.

[0006] In one embodiment, the liquid inlet pipe has an inlet end and an outlet end, the direction from the inlet end to the outlet end is the water flow direction, the sawtooth structure is inclined, and the inclined direction of the sawtooth structure is opposite to the water flow direction.

[0007] In one embodiment, the dirt collecting portion further includes a side wall, and the side wall, the positive electrode plate, and the negative electrode plate together enclose a tubular body; the side wall has a first end and a second end that are relatively arranged, and one end of at least one of the positive electrode plate and the negative electrode plate is hinged to the first end, and the other end is detachably connected to the second end.

[0008] In one embodiment, the hydrogen production system further includes a turbulence generator, which is disposed at a front end of the pollution collecting portion or inside the pollution collecting portion.

[0009] In one embodiment, the spoiler generator comprises:

[0010] a body having a tapered front end; and

[0011] The fan blades are arranged on the main body.

[0012] In one embodiment, the liquid inlet pipe further includes a first connecting pipe, which is connected to the front end of the sewage collecting portion, and the inner diameter of at least a portion of the first connecting pipe gradually increases along the water flow direction.

[0013] In one embodiment, a filter is further provided at the front end of the sewage collecting portion and / or the rear end of the sewage collecting portion.

[0014] In one embodiment, the hydrogen production system further includes an ion exchange device, and the ion exchange device is provided on a pipeline between the water supply source and the sewage collecting part.

[0015] In one embodiment, the hydrogen production system further includes a gas-liquid separator having a mixture inlet and a liquid discharge port. The electrolyzer further includes a gas outlet. The mixture inlet is connected to the gas outlet, and the liquid discharge port is connected to the liquid inlet pipe and is provided at the front end of the sewage collecting portion.

[0016] The technical solution of the present application connects one end of the liquid inlet pipe to the liquid inlet of the electrolytic cell and the other end to the water supply source, so that water from the water supply source can enter the electrolytic cell through the liquid inlet pipe. By making the liquid inlet pipe include a sewage collecting part, the sewage collecting part includes a positive plate and a negative plate arranged opposite to each other, the positive plate is electrically connected to the positive electrode of the power supply, and the negative plate is electrically connected to the negative plate of the power supply, so that the positive plate and the negative plate arranged opposite to each other in the sewage collecting part are respectively positively charged and negatively charged, thereby being able to adsorb anionic impurities and cationic impurities in the water passing therethrough, thereby improving the problem of a large amount of impurities accumulating at the front end of the electrolytic cell, reducing the risk of impurities clogging the filter screen at the front end of the liquid inlet of the electrolytic cell, and preventing impurities from entering the electrolytic cell and affecting the electrolysis efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 This is a structural diagram of an embodiment of a hydrogen production system provided in this application;

[0019] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0020] Figure 3 A schematic diagram of the three-dimensional structure of an embodiment of a spoiler in a hydrogen production system provided by the present application;

[0021] Figure 4A side view of an embodiment of a spoiler in a hydrogen production system provided by the present application;

[0022] Figure 5 This is a structural schematic diagram of another embodiment of the hydrogen production system provided in this application.

[0023] Description of Figure Numbers:

[0024] 100, electrolytic cell; 110, liquid inlet; 120, gas outlet;

[0025] 200, liquid inlet pipe; 210, sewage collecting portion; 211, positive electrode plate; 212, negative electrode plate; 210a, sawtooth structure; 220, first connecting pipe; 230, filter;

[0026] 300, power supply;

[0027] 400, turbulence generator; 410, body; 420, fan blade;

[0028] 500. Ion exchange device;

[0029] 600, gas-liquid separator; 610, mixture inlet; 620, liquid discharge port.

[0030] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0032] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0034] Among them, the use of clean electricity to electrolyze water to produce hydrogen is a key link in this technology. Current renewable energy mainly refers to energy in the form of solar energy, wind energy, etc. Although this type of energy has the advantage of being environmentally friendly, its disadvantages are also obvious. The volatility and instability of its energy are important factors restricting energy utilization. Hydrogen production by electrolysis of water is a process in which a stable direct current is passed into the electrolyzer to produce hydrogen after the electrolysis reaction of water occurs inside the electrolyzer. Currently, the mainstream electrolyzers are divided into alkaline water electrolyzers and proton exchange electrolyzers (PEM electrolyzers). Through actual industrial application, PEM electrolyzers are more adaptable to the volatility of renewable energy. The PEM electrolysis water hydrogen production system also uses pure water as the raw material for the electrolysis water reaction, but it has higher requirements for pure water. In the PEM electrolysis water hydrogen production system, the pure water needs to be heated before entering the electrolyzer and treated with anion and cation exchange resins. The applicant has found that the anion and cation exchange resins currently used on the market use high-molecular synthetic polymers with stable chemical properties, but their hardness characteristics are relatively low, and the ion exchange resins are easily damaged under the action of water pressure. The damaged colloid will flow into the pipeline with the pure water. When using a traditional mesh filter, the colloid will adhere to the surface of the filter. On the one hand, the accumulation of impurities will cause the filter to be blocked and cause pressure drop. On the other hand, some tiny particles will pass through the filter and enter the electrolytic cell, causing damage to the cell body.

[0035] In order to improve the problem of a large amount of impurities accumulating at the front end of the electrolyzer, the present application proposes a hydrogen production system.

[0036] like Figure 1As shown, in one embodiment of the present application, the hydrogen production system includes an electrolytic cell 100, a liquid inlet pipe 200 and a power supply 300; the electrolytic cell 100 has a liquid inlet 110; one end of the liquid inlet pipe 200 is connected to the liquid inlet 110, and the other end is connected to a water supply source; the liquid inlet pipe 200 includes a sewage collecting portion 210, and the sewage collecting portion 210 includes a positive plate 211 and a negative plate 212 arranged opposite to each other; the positive electrode of the power supply 300 is electrically connected to the positive plate 211, and the negative electrode of the power supply 300 is electrically connected to the negative plate 212.

[0037] The electrolyzer 100 needs to be injected with electrolyte through the liquid inlet 110 before electrolysis. In the present application, the electrolyte can be pure water. By connecting one end of the liquid inlet pipe 200 to the liquid inlet 110 and the other end to the water supply source, the effect of injecting water from the water supply source into the electrolyzer 100 can be achieved. Specifically, the water supply source can be a water source that supplies pure water, specifically a water source that has passed through a filter device. Alternatively, in other examples, the hydrogen production system also includes a gas-liquid separator 600, the gas-liquid separator 600 has a mixture inlet 610 and a liquid discharge port 620, the electrolyzer 100 also includes an air outlet 120, the mixture inlet 610 is connected to the air outlet 120, the liquid discharge port 620 is also connected to the liquid inlet pipe 200, and is provided at the front end of the sewage collecting portion 210. With such an arrangement, the gas-liquid separator 600 can also be used as the source of electrolyzed water in the electrolyzer 100. It is understood that when water passes through a filter device, if the filter device includes an ion exchange device 500, the ion exchange resin may be damaged under the action of water pressure, thereby mixing some anions and / or cations into the water before entering the electrolytic cell 100. By providing the liquid inlet pipe 200 with a sewage collection portion 210, which includes a positive plate 211 and a negative plate 212 arranged opposite each other, with the positive plate 211 electrically connected to the positive terminal of the power supply 300 and the negative plate 212 electrically connected to the negative terminal of the power supply 300, the positive plate 211 of the sewage collection portion 210 can be positively charged, thereby adsorbing anions in the water; while the negative plate 212 of the sewage collection plate can be negatively charged, thereby adsorbing cations in the water. This arrangement can filter out some anions and / or cations that enter the water due to damaged ion exchange resin, thereby reducing the risk of anions and / or cations entering the electrolytic cell 100 and affecting the purity of the electrolyzed water, thereby affecting the electrolysis efficiency. Alternatively, such a configuration can also reduce the risk of anions and / or cations clogging the filter at the front end of the electrolytic cell 100. Furthermore, for better protection, a protective resistor can be connected in series in the circuit between the power supply 300 and the sewage collecting portion 210.

[0038] Specifically, the entire wall of the liquid inlet pipe 200 can form the sewage collecting portion 210, or part of the wall of the liquid inlet pipe 200 can form the sewage collecting portion 210. When part of the wall of the liquid inlet pipe 200 forms the sewage collecting portion 210, the liquid inlet pipe 200 may include a first connecting pipe 220 and the sewage collecting portion 210 connected end to end. The sewage collecting portion 210 is a tubular body connected to one end of the first connecting pipe 220. For example, the sewage collecting portion 210 may be a cylindrical tubular body or a square tubular body. When the sewage collecting portion 210 is a cylindrical tubular body, the positive electrode plate 211 and the negative electrode plate 212 may both be arc-shaped, and the positive electrode plate 211 and the negative electrode plate 212 may be connected by a flange. When the sewage collecting portion 210 is a square tubular body, the positive electrode plate 211 and the negative electrode plate 212 may both be U-shaped structures, and the positive electrode plate 211 and the negative electrode plate 212 may be connected by bolt connection, snap connection, etc. Alternatively, when the sewage collecting portion 210 is a square tubular body, the positive plate 211 and the negative plate 212 are both flat plates, and two oppositely arranged side plates are connected between the positive plate 211 and the negative plate 212. The two oppositely arranged side plates, the positive plate 211 and the negative plate 212 side plates can be made of conductive materials or non-conductive materials.

[0039] The technical solution of the present application connects one end of the liquid inlet pipe 200 to the liquid inlet 110 of the electrolytic cell 100 and the other end to the water supply source, so that water from the water supply source can enter the electrolytic cell 100 through the liquid inlet pipe 200. By making the liquid inlet pipe 200 include a sewage collecting part 210, the sewage collecting part 210 includes a positive plate 211 and a negative plate 212 arranged opposite to each other, the positive plate 211 is electrically connected to the positive electrode of the power supply 300, and the negative plate 212 is electrically connected to the negative plate 212 of the power supply 300, so that the positive plate 211 and the negative plate 212 arranged opposite to each other in the sewage collecting part 210 are respectively positively charged and negatively charged, thereby being able to adsorb anionic impurities and cationic impurities in the water passing therethrough, thereby improving the problem of a large amount of impurities accumulating at the front end of the electrolytic cell 100, reducing the risk of impurities clogging the filter screen at the front end of the liquid inlet 110 of the electrolytic cell 100, and reducing the risk of anions and / or cations entering the electrolytic cell 100 and affecting the purity of the electrolyzed water, thereby affecting the electrolysis efficiency.

[0040] Please refer to Figure 1 and Figure 2 In some embodiments of the present application, a sawtooth structure 210 a is provided on the wall of the positive electrode plate 211 facing the negative electrode plate 212 ; and / or a sawtooth structure 210 a is provided on the wall of the negative electrode plate 212 facing the positive electrode plate 211 .

[0041] By providing the sawtooth structure 210a on the wall of the positive plate 211 facing the negative plate 212, the surface area of ​​the inner wall of the positive plate 211 is larger and has space to accommodate impurities, so that more anionic impurities can be adsorbed, thereby improving the adsorption effect of the positive plate 211.

[0042] By providing the sawtooth structure 210a on the wall of the negative plate 212 facing the positive plate 211, the surface area of ​​the inner wall of the negative plate 212 is larger and has space to accommodate impurities, so that more cationic impurities can be adsorbed, thereby improving the adsorption effect of the negative plate 212.

[0043] Please refer to Figure 1 and Figure 2 Furthermore, the liquid inlet pipe 200 has an inlet end and an outlet end, the direction from the inlet end to the outlet end is the water flow direction, the sawtooth structure 210a is tilted, and the tilt direction of the sawtooth structure 210a is back to the water flow direction.

[0044] By setting the inclined direction of the sawtooth 210a to face away from the direction of the water flow, the surface of the sawtooth structure 210a can stop the impurities in the water flow when the water flows through the sawtooth structure 210a, thereby improving the stability of the impurities adsorbed on the sawtooth structure 210a and reducing the risk of impurities falling off the sewage collecting part 210 under the impact of the water flow.

[0045] like Figure 1 As shown, in some embodiments of the present application, the sewage collecting portion 210 further includes a side wall, and the side wall, the positive electrode plate 211, and the negative electrode plate 212 together enclose a tubular body; the side wall has a first end and a second end that are relatively arranged, and one end of at least one of the positive electrode plate 211 and the negative electrode plate 212 is hinged to the first end, and the other end is detachably connected to the second end.

[0046] Specifically, one end of the positive plate 211 is hinged to the first end, and the other end is detachably connected to the second end, and the negative plate 212 is fixedly connected to the side wall; or one end of the negative plate 212 is hinged to the first end, and the other end of the negative plate 212 is detachably connected to the second end, and the positive plate 211 is fixedly connected to the side wall; or one end of the positive plate 211 is hinged to the first end, and the other end is detachably connected to the second end, and one end of the negative plate 212 is hinged to the first end, and the other end of the negative plate 212 is detachably connected to the second end. It should be noted that when the positive plate 211 is connected to the side wall, whether it is hinged or detachably connected, it is necessary to ensure that the two have good sealing after connection. Similarly, when the negative plate 212 is connected to the side wall, whether it is hinged or detachably connected, it is necessary to ensure that the two have good sealing after connection.

[0047] By hingedly connecting one end of at least one of the positive plate 211 and the negative plate 212 to the first end and detachably connecting the other end to the second end, one end of at least one of the positive plate 211 and the negative plate 212 can be removed relative to the side wall and rotated relative to each other, thereby making it easier to expose the surface of at least one of the positive plate 211 and the negative plate 212 that contacts the water flow, thereby facilitating cleaning of the surface.

[0048] like Figure 1 As shown, in some embodiments of the present application, the hydrogen production system further includes a turbulence generator 400 , which is disposed at the front end of the pollution collecting portion 210 or inside the pollution collecting portion 210 .

[0049] By providing the turbulence generator 400, the turbulence generator 400 can break up the small charged particles that have aggregated in the water. By arranging the turbulence generator 400 at the front end of the dirt collecting portion 210 or within the dirt collecting portion 210, it is convenient for the turbulence generator 400 to break up the small charged particles that have aggregated, and the dirt collecting portion 210 can more effectively absorb more of the broken up small charged particles, thereby improving the efficiency of adsorbing impurities.

[0050] Please refer to Figure 1 、 Figure 3 and Figure 4 In one example, the spoiler generator 400 includes a body 410 and blades 420 , wherein the front end of the body 410 is tapered; the blades 420 are disposed on the body 410 .

[0051] By providing the body 410, a mounting or connection foundation is provided for the fan blades 420, and a rotation foundation can also be provided for the rotation of the fan blades 420. By providing the fan blades 420, the fan blades 420 can be made to stir the water flow during rotation, thereby achieving the effect of breaking up the charged particles agglomerated in the water flow. Specifically, the fan blades 420 can be arranged at an angle relative to the direction of the water flow, and can then automatically rotate due to the impact of the water flow. Alternatively, a motor can also be provided, and the motor is in transmission connection with the body 410 to drive the body 410 to rotate, thereby achieving the effect of driving the fan blades 420 to rotate to break up the charged particles agglomerated in the water flow.

[0052] By setting the end of the main body 410 close to the drain port 620 in a conical shape, on the one hand, the water flow can be guided to flow around the side wall of the main body 410 to reduce the resistance of the water flow; on the other hand, the fan blades 420 can be made to rotate more smoothly.

[0053] like Figure 1As shown, in some embodiments of the present application, the liquid inlet pipe 200 further includes a first connecting pipe 220, which is connected to the front end of the sewage collecting portion 210, and the inner diameter of at least part of the first connecting pipe 220 gradually increases along the water flow direction.

[0054] By providing a first connecting tube 220 at the front end of the sewage collecting part 210, and the inner diameter of at least part of the first connecting tube 220 gradually increases in the reverse direction of the water flow, on the one hand, the flow rate of the fluid in the liquid inlet pipe 200 can be reduced, and the residence time of the fluid here can be increased, thereby improving the effectiveness of the sewage collecting part 210 in adsorbing impurities; on the other hand, the adsorption area of ​​the impurities can be increased, thereby improving the adsorption effect.

[0055] like Figure 1 As shown, in some embodiments of the present application, a filter 230 is further provided at the front end of the dirt collecting portion 210 and / or the rear end of the dirt collecting portion 210 .

[0056] Specifically, the filter 230 can be provided at the front end of the waste collecting section 210, and the filter 230 can filter large particles of impurities, thereby achieving a coarse filtration effect. Alternatively, the filter 230 can also be provided at the rear end of the waste collecting section 210, so that after the waste collecting section 210 adsorbs small particles of charged particles, large particles of uncharged impurities can be further filtered through the filter 230. Alternatively, filters 230 are provided at both the front end and the rear end of the waste collecting section 210, thereby achieving a multiple filtration effect on impurities. Furthermore, when filters 230 are provided at both the front end and the rear end of the waste collecting section 210, the mesh number of the filter 230 at the front end can be different from the mesh number of the filter 230 at the rear end, thereby filtering impurity particles of different sizes. By placing the filter 230 at the rear end of the waste collection section 210, water flows more smoothly through the filter 230 after the waste collection plate absorbs a certain amount of impurities, thereby reducing the risk of clogging of the filter 230 located at the rear end of the waste collection plate. The filter 230 can be a Y-type filter 230 or a basket filter 230, without specific limitations. It should be noted that these filters 230 are well known to those skilled in the art and will not be described in detail.

[0057] like Figure 1 As shown, in an embodiment of the present application, the hydrogen production system further includes an ion exchange device 500 , which is disposed on a pipeline between the water supply source and the sewage collecting portion 210 .

[0058] By setting an ion exchange device 500 on the pipeline between the water supply source and the sewage collecting part 210, the water of the water supply source can be subjected to ion exchange treatment, thereby achieving the effect of injecting higher purity water into the liquid inlet 110 of the electrolytic cell 100, thereby achieving higher adaptability to the volatility of renewable energy.

[0059] like Figure 5 As shown, in some embodiments of the present application, the hydrogen production system also includes a gas-liquid separator 600, the gas-liquid separator 600 has a mixture inlet 610 and a liquid discharge port 620, the electrolyzer 100 also includes a gas outlet 120, the mixture inlet 610 is connected to the gas outlet 120, the liquid discharge port 620 is connected to the liquid inlet pipe 200, and is arranged at the front end of the sewage collecting part 210.

[0060] By connecting the gas outlet 120 of the electrolytic cell 100 to the mixture inlet 610 of the gas-liquid separator 600, the gas-liquid mixture discharged from the electrolytic cell 100 can enter the gas-liquid separator 600 for gas-liquid separation. The separated liquid is discharged through the drain port 620. It is understood that the purity of the water mixed in the gas after electrolysis may be low or may also contain some charged impurities. By connecting the mixture drain port 620 to the liquid inlet pipe 200 and arranging it at the front end of the sewage collection unit 210, the sewage collection unit 210 can also adsorb charged impurities in the liquid discharged from the gas-liquid separator 600, thereby improving the purity of the water flowing back into the electrolytic cell 100, further reducing the risk of impurities clogging the filter screen at the front end of the liquid inlet 110, and reducing the risk of anions and / or cations entering the electrolytic cell 100 and affecting the purity of the electrolyzed water, thereby affecting the electrolysis efficiency.

[0061] The above description is merely an exemplary embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structural transformation made using the contents of the present application specification and drawings under the technical concept of the present application, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. A hydrogen production system, characterized in that: include: an electrolytic cell having a liquid inlet; a liquid inlet pipe, one end of which is connected to the liquid inlet and the other end of which is connected to a water supply source; the liquid inlet pipe includes a sewage collecting portion, and the sewage collecting portion includes a positive electrode plate and a negative electrode plate arranged opposite to each other; and a power supply, wherein the positive electrode of the power supply is electrically connected to the positive plate, and the negative electrode of the power supply is electrically connected to the negative plate; The dirt collecting portion also includes a side wall, and the side wall, the positive electrode plate and the negative electrode plate together enclose a tubular body; the side wall has a first end and a second end arranged opposite to each other, and one end of at least one of the positive electrode plate and the negative electrode plate is hinged to the first end, and the other end is detachably connected to the second end.

2. The hydrogen production system according to claim 1, characterized in that: The wall surface of the positive electrode plate facing the negative electrode plate is provided with a serrated structure; and / or the wall surface of the negative electrode plate facing the positive electrode plate is provided with a serrated structure.

3. The hydrogen production system according to claim 2, characterized in that: The liquid inlet pipe has an inlet end and an outlet end, the direction from the inlet end to the outlet end is the water flow direction, the sawtooth structure is arranged obliquely, and the inclination direction of the sawtooth structure is opposite to the water flow direction.

4. The hydrogen production system according to claim 1, wherein: The hydrogen production system further includes a turbulence generator, which is arranged at the front end of the pollution collecting portion or inside the pollution collecting portion.

5. The hydrogen production system according to claim 4, characterized in that: The spoiler generator comprises: a body having a tapered front end; and The fan blades are arranged on the main body.

6. The hydrogen production system according to claim 1, wherein: The liquid inlet pipe further includes a first connecting pipe connected to the front end of the sewage collecting portion, and the inner diameter of at least a portion of the first connecting pipe gradually increases along the water flow direction.

7. The hydrogen production system according to claim 1, wherein: A filter is further provided at the front end of the dirt collecting portion and / or the rear end of the dirt collecting portion.

8. The hydrogen production system according to any one of claims 1 to 7, characterized in that: The hydrogen production system further includes an ion exchange device, which is arranged on a pipeline between the water supply source and the sewage collecting part.

9. The hydrogen production system according to any one of claims 1 to 7, characterized in that: The hydrogen production system also includes a gas-liquid separator having a mixture inlet and a liquid discharge port. The electrolyzer also includes a gas outlet. The mixture inlet is connected to the gas outlet. The liquid discharge port is connected to the liquid inlet pipe and is arranged at the front end of the sewage collecting part.