Organic matter oxidative coupling hydrogen production electrolytic cell

Abstract

The invention belongs to the field of hydrogen production through water electrolysis, and discloses an organic matter oxidative coupling hydrogen production electrolytic bath which comprises a frame assembly, a hydrogen production assembly is locked and connected in the frame assembly, and external electrolyte is introduced into the hydrogen production assembly through the frame assembly for electrolytic hydrogen production; the hydrogen production assembly comprises a middle polar plate arranged on the frame assembly, the two sides of the middle polar plate abut against and are attached to a plurality of left polar plates and right polar plates which are symmetrically arranged respectively, and an electrolysis cavity used for electrolysis hydrogen production is formed between every two adjacent polar plates; an electrolyte inlet is formed in the bottom end of the side wall of the outer frame and communicates with an inner cavity of the electrolysis cavity. An outlet assembly used for discharging electrolysis products is arranged at the top end of the frame assembly and communicates with the top end of the electrolysis cavity. The device is compact in structure, reasonable in design, convenient to use and low in processing and maintenance cost, can provide effective equipment support for organic matter oxidation coupling hydrogen production, is beneficial to improving the hydrogen production efficiency and the product discharge efficiency, and guarantees stable operation of the electrolytic bath.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen production by electrolysis of water, and in particular to an organic matter oxidation coupled hydrogen production electrolyzer. Background Art

[0002] Organic oxidation coupled hydrogen production technology is a new type of electrolysis hydrogen production technology. Compared with traditional water electrolysis hydrogen production equipment, it has lower cell pressure and energy consumption, which improves economic benefits. In addition, the reaction does not produce oxygen, which effectively avoids the risk of explosion of hydrogen-oxygen mixture in traditional water electrolysis equipment and improves safety performance.

[0003] In this technology, the electrolytic cell, as a core component, has an important impact on the effect of the entire electro-oxidation coupled hydrogen production system. Patent CN220502760U discloses an electrocatalytic device for treating organic matter in wastewater, including a cell body, a water inlet and a water outlet provided on the cell body, a flow channel connected to the water inlet and the water outlet in the cell body, and a plurality of electrode plates installed in the flow channel. These electrode plates are connected to an external power supply, and the distance between the anode plate and the cathode plate is controlled by an operating component to achieve electro-oxidation treatment of different organic matter. Patent CN206015107U discloses a special electrolysis device for oxidizing organic matter, including an electrolytic cell, a controller, a zinc electrode and a copper electrode. There is a cover plate on the top of the electrolytic cell, and a zinc electrode and a copper electrode are respectively inserted on the cover plate. The electrolytic cell is filled with electrolyte, and the zinc electrode and the copper electrode extend into the electrolyte. They are connected by wires, and the wires are connected to the controller. There is a display on the front wall of the controller. However, the above electrolytic cells have problems such as high energy consumption, large equipment size, high processing and maintenance costs, complex structure, limited electrolyte use, and long startup time, which cannot meet current needs.

[0004] Therefore, the present application designs an organic oxidation coupled hydrogen production electrolyzer to solve the above technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an organic oxidation coupled hydrogen production electrolyzer to solve the problems existing in the prior art.

[0006] To achieve the above-mentioned object, the present invention provides the following solution: The present invention provides an organic oxidation coupled hydrogen production electrolyzer, comprising a frame assembly as an outer frame of the equipment, a hydrogen production assembly being locked and connected inside the frame assembly, and external electrolyte is passed through the frame assembly into the hydrogen production assembly for electrolytic hydrogen production;

[0007] The hydrogen production assembly includes an intermediate electrode plate arranged on a frame assembly, with a plurality of symmetrically arranged left and right electrode plates respectively abutting against each other on both sides of the intermediate electrode plate, and an electrolysis chamber for electrolytic hydrogen production is formed between adjacent electrode plates;

[0008] The bottom end of the side wall of the outer frame is provided with an electrolyte inlet, and the electrolyte inlet is communicated with the inner cavity of the electrolysis chamber; the top end of the frame assembly is provided with an outlet assembly for discharging electrolysis products, and the outlet assembly is communicated with the top end of the electrolysis chamber.

[0009] Preferably, the intermediate electrode plate includes an intermediate electrode frame arranged in a ring shape, and a main electrode plate is embedded in the intermediate electrode frame. The main electrode plate divides the inner cavity of the intermediate electrode frame into independent first left and right chambers. The electrolyte inlet is respectively communicated with the first left and right chambers, and the outlet assembly is communicated with the first left and right chambers.

[0010] Preferably, a plurality of first liquid inlet holes are penetrated and opened at the bottom end of the intermediate electrode frame. The first liquid inlet holes are correspondingly arranged and communicated with the electrolyte inlet; a plurality of first liquid inlet channels are penetrated and opened at the top end of the first liquid inlet holes, and the first liquid inlet channels are respectively communicated with the first left and right chambers.

[0011] Preferably, a plurality of first liquid outlet holes and second liquid outlet holes are penetrated and opened at the top end of the intermediate electrode frame. The first liquid outlet holes are correspondingly arranged and communicated with the outlet assembly; the second liquid outlet holes are correspondingly arranged and communicated with the outlet assembly. The bottom end of the second liquid outlet hole is provided with a second liquid outlet channel penetrated, and the second liquid outlet channel is communicated with the first left and right chambers.

[0012] Preferably, the left electrode plate includes a left electrode frame corresponding to the intermediate electrode frame, and the main electrode plate is embedded in the middle of the inner cavity of the left electrode frame. The main electrode plate divides the inner cavity of the left electrode frame into a second left chamber and a second right chamber. The second left chamber and the second right chamber are respectively communicated with the electrolyte inlet and the liquid outlet assembly.

[0013] Preferably, a plurality of second liquid inlet holes are penetrated and opened at the bottom end of the left electrode frame, and a plurality of third liquid outlet holes and fourth liquid outlet holes are penetrated and opened at the top end of the left electrode frame. The second liquid inlet holes are communicated with the bottom ends of the second left and right chambers through a plurality of second liquid inlet channels. The third liquid outlet holes are communicated with the second right chamber through a third liquid outlet channel, and the fourth liquid outlet holes are communicated with the second left chamber through a fourth liquid outlet channel.

[0014] Preferably, the right electrode plate includes a right electrode frame corresponding to the intermediate electrode frame, and the main electrode plate is embedded in the middle of the inner cavity of the right electrode frame. The main electrode plate divides the inner cavity of the right electrode frame into a third left chamber and a third right chamber. The third left chamber and the third right chamber are respectively communicated with the electrolyte inlet and the liquid outlet assembly.

[0015] Preferably, a plurality of third liquid inlet holes are formed through the bottom end of the right pole frame, and a plurality of fifth liquid outlet holes and sixth liquid outlet holes are formed through the top end of the third liquid inlet holes. The third liquid inlet holes are communicated with the bottom ends of the third left chamber and the third right chamber through a plurality of third liquid inlet channels. The fifth liquid outlet holes are communicated with the third left chamber through fifth liquid outlet channels. The sixth liquid outlet holes are communicated with the third right chamber through sixth liquid outlet channels.

[0016] Preferably, the frame assembly includes end pressing plates arranged correspondingly, and the main pole plates are respectively embedded and installed on the opposite surfaces of the end pressing plates. A fourth left chamber is formed on the left end pressing plate, and a fourth right chamber is formed on the right end pressing plate. The fourth left chamber and the fourth right chamber are respectively communicated with the electrolyte inlet and the outlet assembly.

[0017] Preferably, the frame assembly includes an insulating sleeve arranged between the two end pressing plates. The two ends of the insulating sleeve are locked together with the intermediate pole plate, a plurality of the left pole plates and a plurality of the right pole plates through a plurality of locking assemblies. The electrolyte inlet is arranged on any one of the end pressing plates, and the two ends of the outlet assembly are respectively arranged on the two end pressing plates.

[0018] Compared with the prior art, the present invention has the following advantages and technical effects: The present invention discloses an electrolytic cell for producing hydrogen by oxidative coupling of organic substances, which is mainly composed of a frame assembly and a hydrogen production assembly. Through reasonable structural design, the function of electrolytic hydrogen production is realized, and it has important application value in the field of hydrogen production; the electrolytic cell uses the frame assembly as an outer frame to provide support and protection for the whole device; a hydrogen production assembly is arranged inside the frame assembly, and the frame assembly provides support and installation space for the hydrogen production assembly, enabling the hydrogen production assembly to work stably; an electrolyte inlet is provided at the bottom end of the side wall of the outer frame, which is communicated with the electrolytic cavity and is used to introduce the electrolyte, so that the electrolyte can smoothly enter the electrolytic cavity for electrolytic hydrogen production, ensuring the smooth progress of the electrolysis process. The outlet assembly at the top end of the frame assembly is connected to the top end of the electrolytic cavity and is used to discharge electrolytic products; the smooth flow of the electrolyte and the effective discharge of electrolytic products are realized, which is beneficial to the continuous and stable operation of the electrolytic cell and improves production efficiency; the hydrogen production assembly includes an intermediate electrode plate, and a number of left electrode plates and right electrode plates are symmetrically arranged on both sides thereof. An electrolytic cavity is formed between adjacent electrode plates, which is the core area for electrolytic hydrogen production. The electrolyte enters the electrolytic cavity from the inlet at the bottom end of the side wall of the frame assembly, which is beneficial to improving the efficiency of oxidative coupling of organic substances to produce hydrogen; electrolytic products such as gases can be smoothly discharged through the outlet assembly at the top end, ensuring the continuity and stability of the electrolysis process and improving the hydrogen production efficiency. By setting multiple electrode plates and forming multiple electrolytic cavities, the electrolysis reaction can be fully participated in, the contact area of the electrolysis reaction is increased, and more organic substances can undergo oxidative coupling reactions under the action of an electric field to produce hydrogen. Compared with the design of a single electrolytic cavity, the hydrogen production output can be significantly increased; the symmetrically arranged electrode plate structure helps to form a uniform electric field distribution in the electrolytic cavity, making the oxidative coupling reaction of organic substances more uniform and reducing the problem of reduced efficiency caused by uneven local reactions, further improving the stability and reliability of the hydrogen production effect.

[0019] The structure of the present invention is compact, the design is reasonable, it is convenient to use, and the processing and maintenance costs are low. It can provide effective equipment support for the oxidative coupling of organic substances to produce hydrogen, help improve the hydrogen production efficiency and the product discharge efficiency, and ensure the stable operation of the electrolytic cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application. In the drawings:

[0021] Figure 1 is a schematic structural diagram of the electrolytic cell for producing hydrogen by oxidative coupling of organic substances of the present invention;

[0022] Figure 2 is a schematic structural diagram of the first liquid inlet hole of the present invention;

[0023] Figure 3 is a schematic structural diagram of the first liquid outlet hole of the present invention;

[0024] Figure 4 Schematic diagram of the second liquid outlet hole structure of the present invention;

[0025] Figure 5 Schematic diagram of the second liquid inlet hole structure of the present invention;

[0026] Figure 6 Schematic diagram of the third liquid outlet hole structure of the present invention;

[0027] Figure 7 Schematic diagram of the fourth liquid outlet hole structure of the present invention;

[0028] Figure 8 Schematic diagram of the third liquid inlet hole structure of the present invention;

[0029] Figure 9 Schematic diagram of the fifth liquid outlet hole structure of the present invention;

[0030] Figure 10 Schematic diagram of the sixth liquid outlet hole structure of the present invention;

[0031] Figure 11 Front view of the left end pressing plate of the present invention;

[0032] Figure 12 Front view of the left end pressing plate of the present invention;

[0033] Figure 13 Schematic diagram of the fourth left chamber of the present invention;

[0034] Figure 14 Schematic diagram of the fourth right chamber of the present invention;

[0035] Figure 15 Schematic diagram of the auxiliary pole network of the present invention;

[0036] Figure 16 Schematic diagram of the large bolt of the present invention;

[0037] Figure 17 Schematic diagram of the large nut of the present invention;

[0038] Figure 18 Schematic diagram of the pressing piece of the present invention;

[0039] In the figure: 1. end pressing plate; 2. insulating sleeve; 3. left electrode plate; 4. sealing gasket; 5. intermediate electrode plate; 6. right electrode plate; 7. disc spring assembly; 8. large bolt; 9. large nut; 10. cathode outlet; 11. anode outlet; 12. electrolyte inlet; 13. terminal board; 14. intermediate electrode frame; 15. first left chamber; 16. first right chamber; 17. first liquid inlet hole; 18. first liquid inlet channel; 19. first liquid outlet hole; 20. second liquid outlet hole; 21. second liquid outlet channel; 22. left electrode frame; 23. second left chamber; 24. second right chamber; 25. second liquid inlet hole; 26. third liquid outlet hole; 27. fourth liquid outlet hole; 28. second liquid inlet channel; 29. third liquid outlet channel; 30. fourth liquid outlet channel; 31. right electrode frame; 32. third left chamber; 33. third right chamber; 34. third liquid inlet hole; 35. fifth liquid outlet hole; 36. sixth liquid outlet hole; 37. third liquid inlet channel; 38. fifth liquid outlet channel; 39. sixth liquid outlet channel; 40. fourth left chamber; 41. fourth right chamber; 42. fourth liquid inlet channel; 43. seventh liquid outlet channel; 44. auxiliary electrode mesh; 45. pressing piece; 46. main electrode plate; 47. fourth liquid inlet hole; 48. seventh liquid outlet hole; 49. eighth liquid outlet hole; 50. eighth liquid outlet channel. Detailed implementation manners

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0042] Referring to Figures 1 - 18 As shown, this embodiment provides an electrolytic cell for producing hydrogen by oxidative coupling of organic substances, including a frame assembly as the outer frame of the device. A hydrogen production assembly is tightly connected inside the frame assembly, and the external electrolyte is introduced into the hydrogen production assembly through the frame assembly for electrolytic hydrogen production.

[0043] The hydrogen production assembly includes an intermediate electrode plate 5 arranged on the frame assembly. A plurality of symmetrically arranged left electrode plates 3 and right electrode plates 6 are respectively abutted and attached to both sides of the intermediate electrode plate 5. An electrolytic chamber for electrolytic hydrogen production is formed between adjacent electrode plates.

[0044] An electrolyte inlet 12 is provided at the bottom end of the side wall of the outer frame, and the electrolyte inlet 12 is communicated with the inner cavity of the electrolytic chamber. An outlet assembly for discharging electrolytic products is provided at the top end of the frame assembly, and the outlet assembly is communicated with the top end of the electrolytic chamber.

[0045] The present invention discloses an electrolytic cell for producing hydrogen by oxidative coupling of organic substances, which is mainly composed of a frame assembly and a hydrogen production assembly. The electrolytic hydrogen production function is realized through reasonable structural design, and it has important application value in the field of hydrogen production. The electrolytic cell uses the frame assembly as the outer frame to provide support and protection for the whole device. The hydrogen production assembly is arranged inside the frame assembly, and the frame assembly provides support and installation space for the hydrogen production assembly, enabling the hydrogen production assembly to work stably. An electrolyte inlet 12 is provided at the bottom end of the side wall of the outer frame and is communicated with the electrolytic cavity for introducing the electrolyte, so that the electrolyte can smoothly enter the electrolytic cavity for electrolytic hydrogen production, ensuring the smooth progress of the electrolysis process. The outlet assembly at the top end of the frame assembly is connected to the top end of the electrolytic cavity for discharging electrolysis products. The smooth circulation of the electrolyte and the effective discharge of electrolysis products are realized, which is beneficial to the continuous and stable operation of the electrolytic cell and improves the production efficiency. The hydrogen production assembly includes an intermediate electrode plate 5, and a number of left electrode plates 3 and right electrode plates 6 are symmetrically arranged on both sides thereof. An electrolytic cavity is formed between adjacent electrode plates, which is the core area for electrolytic hydrogen production. The electrolyte enters the electrolytic cavity from the inlet at the bottom end of the side wall of the frame assembly, which is beneficial to improving the efficiency of oxidative coupling of organic substances to produce hydrogen. The products such as gases generated by electrolysis can be smoothly discharged through the outlet assembly at the top end, ensuring the continuity and stability of the electrolysis process and improving the hydrogen production efficiency. By arranging multiple electrode plates to form multiple electrolytic cavities, it can fully participate in the electrolysis reaction, increase the contact area of the electrolysis reaction, and enable more organic substances to undergo oxidative coupling reactions to produce hydrogen under the action of an electric field. Compared with the design of a single electrolytic cavity, the hydrogen production output can be significantly increased. The symmetrically arranged electrode plate structure helps to form a uniform electric field distribution in the electrolytic cavity, making the oxidative coupling reaction of organic substances more uniform and reducing the problem of reduced efficiency caused by uneven local reactions, further improving the stability and reliability of the hydrogen production effect. The structure of the present invention is compact, reasonably designed, easy to use, and has low processing and maintenance costs. It can provide effective equipment support for the oxidative coupling of organic substances to produce hydrogen, help improve the hydrogen production efficiency and the product discharge efficiency, and ensure the stable operation of the electrolytic cell.

[0046] Further optimization solution: The intermediate electrode plate 5 includes an intermediate electrode frame 14 arranged in a ring shape. A main electrode plate 46 is embedded and installed in the intermediate electrode frame 14. The main electrode plate 46 divides the inner cavity of the intermediate electrode frame 14 into independent first left chambers 15 and first right chambers 16. The electrolyte inlet 12 is respectively communicated with the first left chamber 15 and the first right chamber 16, and the outlet assembly is communicated with the first left chamber 15 and the first right chamber 16. The intermediate electrode plate 5 is refined and consists of the intermediate electrode frame 14 and the main electrode plate 46. The main electrode plate 46 divides the inner cavity of the intermediate electrode frame 14 into the first left chamber 15 and the first right chamber 16, and both the electrolyte inlet 12 and the outlet assembly are communicated with these two chambers. During operation, the electrolyte flows into the first left chamber 15 and the first right chamber 16 respectively from the electrolyte inlet 12, participates in the electrolysis reaction, and the reaction products are discharged from the outlet assembly through channels communicated with the first left chamber 15 and the first right chamber 16, so that the electrolyte is evenly distributed in the chambers on both sides of the intermediate electrode plate 5, which is beneficial to improving the efficiency and uniformity of the electrolysis reaction and increasing the hydrogen production output.

[0047] In an embodiment of the present application, a ring-shaped connecting tongue is arranged in the middle of the inner cavity of the intermediate electrode frame 14, and the outer edge of the main electrode plate 46 is welded to the inner cavity of the connecting tongue. The welding technology is used to ensure the firm and reliable connection between the main electrode plate 46 and other components, and special surface treatment methods are adopted to further improve the corrosion resistance of carbon steel, ensuring the connection strength and connection tightness.

[0048] In an embodiment of the present application, a number of protrusions are respectively arranged in an array on both sides of the main electrode plate 46, and the protrusions on both sides are arranged in a staggered manner, increasing the contact area with the electrolyte, accelerating the efficiency of electrolytic hydrogen production, and increasing the hydrogen production amount at the same time.

[0049] In an embodiment of the present application, the main electrode plate 46 adopts a papillary plate design, and the protruding method is to protrude on both sides. On the one hand, it can increase the specific surface area of the electrode, make the contact area between the electrode and the electrolyte larger, and is conducive to the full progress of the electrochemical reaction and improving the electrolysis efficiency; on the other hand, when assembling the electrolytic cell of the present application, the protruding structure helps to form an electrolyte channel, ensuring the uniform flow of the electrolyte in the cell.

[0050] In an embodiment of the present application, the material of the main electrode plate 46 is selected as carbon steel, and the processing process includes multiple links such as stamping, welding, and surface treatment; in the stamping link, a high-precision mold is used to stamp the circular thin steel plate to ensure the dimensional accuracy and surface quality of the main electrode plate 46. The diameter is precisely controlled at 475 mm, the thickness is 2 mm, and the protruding height is 6.25 mm.

[0051] In an embodiment of the present application, the installation method is selected as a detachable type according to the actual use scenario, which is convenient for operation during maintenance or replacement of components.

[0052] For a further optimized solution, a number of first liquid inlet holes 17 are formed through the bottom end of the middle pole frame 14. The first liquid inlet holes 17 are correspondingly arranged and communicated with the electrolyte inlet 12. At the top end of the first liquid inlet holes 17, a number of first liquid inlet channels 18 are formed through. The first liquid inlet channels 18 are respectively communicated with the first left chamber 15 and the first right chamber 16. The bottom end of the middle pole frame 14 is provided with the first liquid inlet holes 17 communicated with the electrolyte inlet 12, and the top end is provided with the first liquid inlet channels 18 communicated with the first left chamber 15 and the first right chamber 16. The electrolyte enters the first liquid inlet holes 17 through the electrolyte inlet 12, and then flows into the first left chamber 15 and the first right chamber 16 through the first liquid inlet channels 18, and then participates in the electrolysis reaction, ensuring that the electrolyte can smoothly and evenly enter the chambers on both sides of the middle pole plate 5, providing sufficient reactants for the electrolysis reaction, and helping to improve the hydrogen production efficiency.

[0053] In an embodiment of the present application, a number of connecting plates corresponding to the frame assembly are arranged on the outer wall of the middle pole frame 14 to connect the middle pole frame 14 and the frame assembly together, realizing the positioning and fixation of the middle pole plate 5.

[0054] For a further optimized solution, a number of first liquid outlet holes 19 and second liquid outlet holes 20 are formed through the top end of the middle pole frame 14. The first liquid outlet holes 19 are correspondingly arranged and communicated with the outlet assembly. The second liquid outlet holes 20 are correspondingly arranged and communicated with the outlet assembly. The bottom end of the second liquid outlet holes 20 is provided with a second liquid outlet channel 21 formed through. The second liquid outlet channel 21 is communicated with the first left chamber 15 and the first right chamber 16. The first liquid outlet holes 19 and the second liquid outlet holes 20 at the top end of the middle pole frame 14 are communicated with the outlet assembly, and the second liquid outlet holes 20 are communicated with the first left chamber 15 and the first right chamber 16 through the second liquid outlet channel 21. During operation, the products generated by electrolysis flow in the chamber and are discharged to the outlet assembly through the second liquid outlet channel 21 and the second liquid outlet holes 20, which is beneficial to the rapid discharge of the electrolysis products, avoiding the accumulation of products in the chamber and affecting the progress of the reaction, and further ensuring the high efficiency and stability of the electrolytic hydrogen production process.

[0055] Further optimized solution: The left electrode plate 3 includes a left electrode frame 22 corresponding to the middle electrode frame 14. The main electrode plate 46 is embedded and installed in the middle of the inner cavity of the left electrode frame 22. The main electrode plate 46 divides the inner cavity of the left electrode frame 22 into a second left chamber 23 and a second right chamber 24. The second left chamber 23 and the second right chamber 24 are respectively communicated with the electrolyte inlet 12 and the liquid outlet assembly. The left electrode plate 3 is composed of the left electrode frame 22 and the main electrode plate 46. The main electrode plate 46 divides the inner cavity of the left electrode frame 22 into a second left chamber 23 and a second right chamber 24, and these two chambers are respectively communicated with the electrolyte inlet 12 and the liquid outlet assembly. During operation, the electrolyte flows into the second left chamber 23 and the second right chamber 24 through the electrolyte inlet 12, participates in the electrolysis reaction, and the reaction products flow to the liquid outlet assembly through the channels communicated with the chambers and are discharged, increasing the area of the electrolysis reaction, enabling more organic substances to participate in the reaction, and improving the hydrogen production yield. At the same time, the independent chamber design helps to optimize the flow paths of the electrolyte and the products, improving the electrolysis efficiency.

[0056] Further optimized solution: A number of second liquid inlet holes 25 are penetrated and opened at the bottom end of the left electrode frame 22, and a number of third liquid outlet holes 26 and fourth liquid outlet holes 27 are penetrated and opened at the top end of the left electrode frame 22. The second liquid inlet holes 25 are communicated with the bottoms of the second left chamber 23 and the second right chamber 24 through a number of second liquid inlet channels 28. The third liquid outlet holes 26 are communicated with the second right chamber 24 through a third liquid outlet channel 29. The fourth liquid outlet holes 27 are communicated with the second left chamber 23 through a fourth liquid outlet channel 30. The second liquid inlet holes 25 at the bottom end of the left electrode frame 22 are communicated with the second left chamber 23 and the second right chamber 24 through the second liquid inlet channels 28. The second left chamber 23 at the top end is communicated with the outlet assembly through the third liquid outlet channel 29, and the second right chamber 24 is communicated with the outlet assembly through the fourth liquid outlet channel 30. During operation, the electrolyte enters the second left chamber 23 and the second right chamber 24 from the second liquid inlet holes 25 through the second liquid inlet channels 28, and the reaction products are respectively discharged through the third liquid outlet holes 26 and the fourth liquid outlet holes 27 through their respective channels, ensuring the full utilization of the electrolyte in the area of the left electrode plate 3 and the smooth discharge of the products, and further improving the efficiency and stability of electrolytic hydrogen production.

[0057] For a further optimized solution, the right electrode plate 6 includes a right electrode frame 31 correspondingly arranged with the middle electrode frame 14. The main electrode plate 46 is embedded in the middle of the inner cavity of the right electrode frame 31. The main electrode plate 46 divides the inner cavity of the right electrode frame 31 into a third left chamber 32 and a third right chamber 33. The third left chamber 32 and the third right chamber 33 are respectively communicated with the electrolyte inlet 12 and the liquid outlet assembly. The right electrode plate 6 is composed of the right electrode frame 31 and the embedded main electrode plate 46. The main electrode plate 46 divides the inner cavity of the right electrode frame 31 into a third left chamber 32 and a third right chamber 33, and these two chambers are respectively communicated with the electrolyte inlet 12 and the liquid outlet assembly. During operation, the electrolyte flows into the third left chamber 32 and the third right chamber 33 through the electrolyte inlet 12 to participate in the reaction, and the products flow through the channels connected to the chambers to the liquid outlet assembly for discharge, echoing the structure of the left electrode plate 3, further expanding the electrolysis reaction area and increasing the hydrogen production. It optimizes the flow of the electrolyte and the products in the area of the right electrode plate 6 and enhances the overall performance of the electrolytic hydrogen production process.

[0058] For a further optimized solution, a number of third liquid inlet holes 34 are penetrated and opened at the bottom end of the right electrode frame 31. A number of fifth liquid outlet holes 35 and sixth liquid outlet holes 36 are penetrated and opened at the top end of the third liquid inlet holes 34. The third liquid inlet holes 34 are communicated with the bottoms of the third left chamber 32 and the third right chamber 33 through a number of third liquid inlet channels 37. The fifth liquid outlet holes 35 are communicated with the third left chamber 32 through a fifth liquid outlet channel 38. The sixth liquid outlet holes 36 are communicated with the third right chamber 33 through a sixth liquid outlet channel 39. The third liquid inlet holes 34 at the bottom end of the right electrode frame 31 are communicated with the chambers through the third liquid inlet channels 37. The fifth liquid outlet holes 35 at the top end are communicated with the third left chamber 32 through the fifth liquid outlet channel 38. The sixth liquid outlet holes 36 are communicated with the third right chamber 33 through the sixth liquid outlet channel 39. During operation, the electrolyte enters the chambers from the third liquid inlet holes 34 through the third liquid inlet channels 37, and the reaction products are discharged through the fifth liquid outlet holes 35 and the sixth liquid outlet holes 36 through their respective channels, ensuring the full utilization of the electrolyte in the area of the right electrode plate 6 and the smooth discharge of the products, which helps to improve the hydrogen production efficiency and stability of the entire electrolytic cell.

[0059] In an embodiment of the present application, the number of the middle electrode plates 5 is one group, while a number of groups of the left electrode plates 3 and the right electrode plates 6 are respectively arranged, and are respectively abutted against the left and right sides of the middle electrode plate 5 in sequence to form a number of electrolytic chambers for electrolysis work.

[0060] In an embodiment of the present application, an annular sealing gasket 4 is arranged between adjacent electrode plates and is pressed tightly when the device is locked by the frame assembly, so that the adjacent electrode plates are hermetically connected, improving the sealing performance of the connection and ensuring the sealing of the electrolytic chamber.

[0061] Further optimized solution: The frame assembly includes end pressing plates 1 arranged correspondingly. The main electrode plates 46 are respectively embedded and installed on the opposite surfaces of the end pressing plates 1. A fourth left chamber 40 is formed on the left end pressing plate 1, and a fourth right chamber 41 is formed on the right end pressing plate 1. The fourth left chamber 40 and the fourth right chamber 41 are respectively communicated with the electrolyte inlet 12 and the outlet assembly. The frame assembly is composed of the correspondingly arranged end pressing plates 1. The main electrode plates 46 are embedded on the opposite surfaces of the end pressing plates 1. A fourth left chamber 40 and a fourth right chamber 41 are formed on the end pressing plates 1, and these two chambers are respectively communicated with the electrolyte inlet 12 and the outlet assembly. During operation, the electrolyte flows into the fourth left chamber 40 and the fourth right chamber 41 through the electrolyte inlet 12, and the products after the reaction are discharged from these two chambers through the outlet assembly; this further improves the flow path of the electrolyte and the discharge channel of the products, helps to improve the overall sealing performance and stability of the electrolytic cell, and ensures the efficient progress of the electrolytic hydrogen production process.

[0062] In an embodiment of the present application, a plurality of fourth liquid inlet holes 47, a plurality of seventh liquid outlet holes 48 and a plurality of eighth liquid outlet holes 49 are penetrated and opened on the end pressing plate 1. The fourth liquid inlet holes 47 are respectively communicated with the fourth left chamber 40 and the fourth right chamber 41 through the fourth liquid inlet channels 42; the seventh liquid outlet holes 48 are communicated with the fourth left chamber 40 through the seventh liquid outlet channels 43, and the eighth liquid outlet holes 49 are communicated with the fourth right chamber 41 through the eighth liquid outlet channels 50.

[0063] Further optimized solution: The frame assembly includes an insulating sleeve 2 arranged between the two end pressing plates 1. The two ends of the insulating sleeve 2 respectively lock the intermediate electrode plates 5, a plurality of left electrode plates 3 and a plurality of right electrode plates 6 together through a plurality of locking components. The electrolyte inlet 12 is arranged on any one of the end pressing plates 1, and the two ends of the outlet assembly are respectively arranged on the two end pressing plates 1. When the insulating sleeve 2 is arranged between the two end pressing plates 1, the intermediate electrode plates 5, the left and right electrode plates 6 are fixed together through the locking components, the electrolyte inlet 12 is arranged on one end pressing plate 1, and the two ends of the outlet assembly are respectively located on the two end pressing plates 1. During installation, the two ends of the insulating sleeve 2 respectively pass through the end pressing plates 1, and at the same time, its middle part passes through the connecting plate, then the left electrode plates 3 and the right electrode plates 6 are respectively arranged side by side on both sides of the intermediate electrode plate 5, and then locked through the locking components to form a whole. After all components are installed in place, the electrolyte flows in from the inlet of one end pressing plate 1, and after reacting in the chambers between the electrode plates, the products are discharged from the outlet assembly on the two end pressing plates 1, ensuring the relative positions of the electrode plates are stable, preventing the occurrence of electric leakage, and improving the safety and stability of the electrolytic cell; the layout of the inlet and outlet assemblies optimizes the flow of the electrolyte and the products, which is beneficial to improving the hydrogen production efficiency.

[0064] In an embodiment of the present application, a wiring board 13 is arranged on the end pressing plate 1 for electrolytic hydrogen production of the electrolyte.

[0065] In one embodiment of the present application, the locking assembly includes a large bolt 8 with threads at both ends. Both ends of the large bolt 8 pass through the end pressing plate 1 and are installed with disc spring assemblies 7, and then are locked by a large nut 9, which is convenient for connection.

[0066] In one embodiment of the present application, a secondary grid 44 is provided on the end pressing plate 1, and the large bolt 8 passes through the secondary grid 44 for pressing.

[0067] In one embodiment of the present application, an arc-shaped pressing plate is provided between two adjacent large bolts 8. The two ends of the pressing plate are provided with concave arcs and abut against the large bolts 8, which is convenient for pressing and fixing the secondary grid 44.

[0068] In one embodiment of the present application, the numbers of the first liquid inlet hole 17, the second liquid inlet hole 25, and the third liquid inlet hole 34 are each selected to be two. The first liquid inlet hole 17, the second liquid inlet hole 25, and the third liquid inlet hole 34 are connected together to form two sets of flow channels for the electrolyte. After the two sets of flow channels merge at the end, they are connected to the electrolyte inlet 12.

[0069] In one embodiment of the present application, there are two sets each of the first liquid outlet hole 19, the second liquid outlet hole 20, the third liquid outlet hole 26, the fourth liquid outlet hole 27, the fifth liquid outlet hole 35, the sixth liquid outlet hole 36, the seventh liquid outlet hole 48, and the eighth liquid outlet hole 49. And the first liquid outlet hole 19, the third liquid outlet hole 26, the fifth liquid outlet hole 35, and the seventh liquid outlet hole 48 are aligned to form two sets of first product discharge channels, and the second liquid outlet hole 20, the fourth liquid outlet hole 27, the sixth liquid outlet hole 36, and the eighth liquid outlet hole 49 are aligned to form two sets of second product discharge channels.

[0070] In one embodiment of the present application, the outlet assembly includes a cathode outlet 10 and an anode outlet 11. The cathode outlet 10 and the anode outlet 11 are respectively arranged on two end pressing plates 1, and the anode product and the cathode product are discharged respectively.

[0071] In one embodiment of the present application, the inlet ends of the two sets of liquid inlet channels are fused together and connected to the electrolyte inlet 12.

[0072] In one embodiment of the present application, the two sets of first product discharge channels are merged into one set at one end, and the two sets of second product discharge channels are merged into one set, and are respectively connected to the anode outlet 11 and the cathode outlet 10.

[0073] In one embodiment of the present application, the material of each pole frame is selected as stainless steel, and the dimensions of each part of its width are strictly executed according to the design requirements; the total flow area of the liquid inlet holes and the liquid outlet holes on the pole frame is calculated based on that the hourly circulation volume of the electrolyte in the electrolytic cell is not less than three times the volume of the hydrogen production electrolytic cell, and combined with the flow rate of the electrolyte in the pipeline, the flow requirements of the electrolyte and the gas are met, ensuring the smooth progress of the electrolysis reaction.

[0074] In an embodiment of the present application, the end pressing plate 1 is made of high-strength titanium alloy material to cope with possible chemical corrosion and mechanical wear during the electrolysis process; the structural design is customized according to the electrolytic cell specifications and internal layout. The grooves on the pressing plate fit precisely with the edges of the leftmost left electrode plate 3 and the rightmost right electrode plate 6, preventing electrolyte leakage. By adjusting the clamping size, precise installation can be quickly achieved, demonstrating good compatibility and adaptability.

[0075] In an embodiment of the present application, the surface treatment of the end pressing plate 1 adopts a double-layer process of galvanizing and spraying. The galvanized layer isolates moisture and corrosive gases, delaying corrosion; the sprayed coating enhances the anti-corrosion ability and improves the surface hardness. Through long-term operation observation, this treatment significantly improves the corrosion resistance and mechanical properties of the pressing plate, providing a reliable guarantee for the stable operation of the electrolytic cell.

[0076] In an embodiment of the present application, the overall shape of the end pressing plate 1 is hexagonal, and a plurality of connection holes corresponding to the large bolts 8 are distributed around the perimeter for fixing to other components through connecting parts such as the large bolts 8.

[0077] In an embodiment of the present application, the large bolts 8 and large nuts 9 are non-standard components. Since they are subjected to large forces during the assembly process of the electrolytic cell, the large bolts 8 and large nuts 9 must be subjected to conditioning treatment to improve their strength, and at the same time, blackening treatment is carried out to prevent corrosion.

[0078] In an embodiment of the present application, in order to avoid seizure due to deformation after assembly, the processing materials of the large bolts 8 and large nuts 9 are different. The large bolts 8 are made of 40Cr material, and the large nuts 9 are made of 45Cr material. The specific specifications are strictly in accordance with the design requirements. For example, the large bolts 8 are made of 40Cr material, with a diameter of 48 mm, a total length of 1730 mm, a thread length of 22 mm, a thread diameter of 30 mm, a thread pitch of 5 mm, and a thread pitch angle of 45°; the large nuts 9 are made of 45Cr material, with a specification of M48, a thread pitch of 5 mm, a diameter of 75 mm, a height of 60 mm, and a hexagon across flats length of 86.6 mm.

[0079] In an embodiment of the present application, the designs of the pressing sheet 45 and the auxiliary electrode grid 44 also fully consider the working environment and performance requirements. The shape and size of the pressing sheet 45 are optimized to evenly transmit the fastening force; the auxiliary electrode grid 44 is composed of multiple small segments and is connected to the main body of the electrolytic cell through the large bolts 8 and large nuts 9. Its design takes into account multiple factors such as conductivity, corrosion resistance, and mechanical strength, ensuring the stable operation of the electrolytic cell.

[0080] In an example of the present application, there are two types of pressing sheets 45, and one large one is used in combination with two small ones.

[0081] Specific implementation scheme:

[0082] The end pressing plates 1 are located at both ends of the electrolytic cell, cooperate with the disc spring assemblies 7 through the large bolts 8 and large nuts 9, apply pressure to the internal components such as the electrode plates, ensure the structural stability and sealing performance of the electrolytic cell, and prevent the leakage of the electrolyte; the insulating sleeves 2 are sleeved on the large bolts 8 to isolate the conductive large bolts 8 from other metal components, play an insulating role, avoid the conduction of current in non-reaction areas, and ensure the normal progress of the electrolytic reaction between the electrode plates.

[0083] The left electrode plate 3 serves as the anode of the electrolytic reaction, providing a place for the electro-oxidation reaction of organic substances. In the electrolytic cell for electro-oxidation coupling hydrogen production, the middle electrode plate 5 can play roles such as separating the reaction areas and conducting current. The right electrode plate 6 serves as the cathode of the electrolytic reaction, providing a place for the hydrogen evolution reaction.

[0084] The sealing gaskets 4 are placed between the electrode plates and on the contact surfaces of the electrode plates and components such as the end pressing plates 1, and achieve sealing through the pressure applied by the end pressing plates 1.

[0085] The disc spring assemblies 7 are composed of disc springs, installed between the end pressing plates 1 and the electrode plates. The large bolts 8 pass through components such as the end pressing plates 1 and the insulating sleeves 2, cooperate with the large nuts 9 to be tightened, fasten all components of the electrolytic cell together, make the whole electrolytic cell into a whole, and bear the internal pressure and external acting forces.

[0086] The cathode outlet 10 is used to discharge the hydrogen generated by the reduction reaction at the cathode. The design takes into account the smooth discharge of the gas and the prevention of the back-drawing of external air. The anode outlet 11 discharges the high-value electro-oxidation products generated by the oxidation reaction at the anode. The electrolyte inlet 12 introduces the configured electrolyte into the interior of the electrolytic cell to ensure the continuous progress of the electrolytic reaction.

[0087] The terminal board 13 is connected to the end pressing plate 1 and is used to connect the external power supply to provide electrical energy for the electrolytic reaction.

[0088] The electrolytic cell for electro-oxidation coupling hydrogen production of organic substances is in an overall cuboid shape. The end pressing plates 1 at both ends fasten the internal components such as the electrode plates and the sealing gaskets 4 together through the large bolts 8, large nuts 9 and disc spring assemblies 7. The insulating sleeves 2 ensure the insulation of the large bolts 8. The electrolyte flows into the electrolytic cell from the electrolyte inlet 12, and the electro-oxidation coupling hydrogen production reaction occurs between the electrode plates. The gases and oxidation products generated by the reaction are discharged from the cathode outlet 10 and the anode outlet 11 respectively. The terminal board 13 connects the external power supply to provide the required electrical energy for the electrolytic reaction. All components work together to realize the process of electro-oxidation coupling hydrogen production of organic substances.

[0089] Through the above optimized design of the electrolytic cell structure, the present invention effectively solves many problems existing in the existing electrolytic cells, and has significant practical value and popularization prospects. In the future development of the hydrogen energy industry, it is expected to provide innovative and efficient solutions for large-scale hydrogen production and the production of high-value chemicals.

[0090] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0091] The embodiments described above are only for describing the preferred mode of the present invention, rather than limiting the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solution of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An electrolytic cell for producing hydrogen by oxidative coupling of organic compounds, characterized in that: It includes a frame component that serves as the outer frame of the device. A hydrogen production component is tightly connected within the frame component, and external electrolyte passes through the frame component into the hydrogen production component for electrolytic hydrogen production. The hydrogen production component includes an intermediate electrode plate (5) disposed on the frame component. A number of symmetrically arranged left electrode plates (3) and right electrode plates (6) are respectively abutted and attached to both sides of the intermediate electrode plate (5). An electrolysis chamber for electrolytic hydrogen production is formed between adjacent electrode plates. An electrolyte inlet (12) is provided at the bottom end of the side wall of the outer frame, and the electrolyte inlet (12) communicates with the inner cavity of the electrolysis chamber. An outlet component for discharging electrolysis products is provided at the top end of the frame component, and the outlet component communicates with the top end of the electrolysis chamber.

2. The organic matter oxidation-coupled hydrogen production electrolytic cell according to claim 1, wherein: The intermediate electrode plate (5) includes an annular intermediate electrode frame (14). A main electrode plate (46) is embedded in the intermediate electrode frame (14). The main electrode plate (46) divides the inner cavity of the intermediate electrode frame (14) into independent first left chambers (15) and first right chambers (16). The electrolyte inlet (12) communicates with the first left chamber (15) and the first right chamber (16) respectively, and the outlet component communicates with the first left chamber (15) and the first right chamber (16).

3. The organic matter oxidation-coupled hydrogen production electrolytic cell according to claim 2, wherein: A number of first liquid inlet holes (17) are penetrated and opened at the bottom end of the intermediate electrode frame (14). The first liquid inlet holes (17) are correspondingly arranged and communicated with the electrolyte inlet (12). A number of first liquid inlet channels (18) are penetrated and opened at the top end of the first liquid inlet holes (17). The first liquid inlet channels (18) communicate with the first left chamber (15) and the first right chamber (16) respectively.

4. The organic matter oxidation-coupled hydrogen production electrolytic cell according to claim 3, wherein: A number of first liquid outlet holes (19) and second liquid outlet holes (20) are penetrated and opened at the top end of the intermediate electrode frame (14). The first liquid outlet holes (19) are correspondingly arranged and communicated with the outlet component. The second liquid outlet holes (20) are correspondingly arranged and communicated with the outlet component. The bottom end of the second liquid outlet holes (20) is provided with a second liquid outlet channel (21) penetrated and opened, and the second liquid outlet channel (21) communicates with the first left chamber (15) and the first right chamber (16).

5. The organic matter oxidation-coupled hydrogen production electrolytic cell according to claim 4, characterized in that: The left electrode plate (3) includes a left electrode frame (22) correspondingly arranged with the intermediate electrode frame (14). The main electrode plate (46) is embedded in the middle of the inner cavity of the left electrode frame (22). The main electrode plate (46) divides the inner cavity of the left electrode frame (22) into a second left chamber (23) and a second right chamber (24). The second left chamber (23) and the second right chamber (24) communicate with the electrolyte inlet (12) and the outlet component respectively.

6. The organic matter oxidation-coupled hydrogen production electrolytic cell according to claim 5, wherein: A plurality of second liquid inlet holes (25) are formed through the bottom end of the left pole frame (22). A plurality of third liquid outlet holes (26) and fourth liquid outlet holes (27) are formed through the top end of the left pole frame (22). The second liquid inlet holes (25) are communicated with the bottoms of the second left chamber (23) and the second right chamber (24) through a plurality of second liquid inlet channels (28). The third liquid outlet holes (26) are communicated with the second right chamber (24) through a third liquid outlet channel (29). The fourth liquid outlet holes (27) are communicated with the second left chamber (23) through a fourth liquid outlet channel (30).

7. The organic matter oxidation-coupled hydrogen production electrolytic cell according to claim 4, wherein: The right pole plate (6) includes a right pole frame (31) corresponding to the middle pole frame (14). The main pole plate (46) is embedded in the middle of the inner cavity of the right pole frame (31). The main pole plate (46) divides the inner cavity of the right pole frame (31) into a third left chamber (32) and a third right chamber (33). The third left chamber (32) and the third right chamber (33) are respectively communicated with the electrolyte inlet (12) and the liquid outlet assembly.

8. The organic matter oxidation-coupled hydrogen production electrolytic cell according to claim 7, characterized in that: A plurality of third liquid inlet holes (34) are formed through the bottom end of the right pole frame (31). A plurality of fifth liquid outlet holes (35) and sixth liquid outlet holes (36) are formed through the top end of the third liquid inlet holes (34). The third liquid inlet holes (34) are communicated with the bottoms of the third left chamber (32) and the third right chamber (33) through a plurality of third liquid inlet channels (37). The fifth liquid outlet holes (35) are communicated with the third left chamber (32) through a fifth liquid outlet channel (38). The sixth liquid outlet holes (36) are communicated with the third right chamber (33) through a sixth liquid outlet channel (39).

9. The organic matter oxidation-coupled hydrogen production electrolytic cell according to claim 2, wherein: The frame assembly includes end pressing plates (1) arranged correspondingly. The main pole plates (46) are respectively embedded on the opposite surfaces of the end pressing plates (1). A fourth left chamber (40) is formed on the left end pressing plate (1), and a fourth right chamber (41) is formed on the right end pressing plate (1). The fourth left chamber (40) and the fourth right chamber (41) are respectively communicated with the electrolyte inlet (12) and the outlet assembly.

10. The organic matter oxidation-coupled hydrogen production electrolytic cell according to claim 9, wherein: The frame assembly includes an insulating sleeve (2) arranged between the two end pressing plates (1). The two ends of the insulating sleeve (2) lock the middle pole plate (5), a plurality of the left pole plates (3) and a plurality of the right pole plates (6) together through a plurality of locking assemblies. The electrolyte inlet (12) is arranged on any one of the end pressing plates (1). The two ends of the outlet assembly are respectively arranged on the two end pressing plates (1).

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