Two-plate three-cavity non-pressure type cooling electrolytic bath and electrolysis method

Abstract

The two-plate three-cavity non-pressure type cooling electrolytic bath comprises a plurality of electrolytic assemblies and diaphragms arranged among the electrolytic assemblies, each electrolytic assembly comprises an electrode frame, a first electrode plate, a second electrode plate, a positive electrode and a negative electrode, the first electrode plate, the second electrode plate, the positive electrode and the negative electrode are arranged on the electrode frame, and each electrolytic assembly further comprises a heat exchange plate. The heat exchange plate is arranged on the electrode frame, the first electrode plate and the second electrode plate are arranged on the two sides of the heat exchange plate respectively, a water inlet and a water outlet are formed in the electrode frame, the heat exchange plate, the first electrode plate and the second electrode plate form a heat exchange cavity, and the two ends of the heat exchange cavity are communicated with the water inlet and the water outlet respectively. The electrolytic bath has the advantages that cooling water flows in the heat exchange cavity to cause heat exchange and cooling between the first electrode plate and the second electrode plate, so that the first electrode plate and the second electrode plate are uniformly heated, the electrolytic efficiency is improved, and the risk of breakage of a sealing part caused by deformation of each part of the electrolytic bath due to non-uniform heating is reduced; and the leakage risk of the groove body is reduced.

Description

Technical Field

[0001] This invention relates to the field of electrolysis technology, specifically to a two-plate, three-cavity pressureless cooled electrolytic cell and an electrolysis method. Background Art

[0002] The existing electrolytic cell mainly has two cavities: the anode cavity formed by the first electrode plate and the positive electrode, and the cathode cavity formed by the second electrode plate and the negative electrode. Currently, it has been found that the temperature difference between the top and bottom of the cell is too large during operation. The large temperature difference can easily lead to uneven internal reaction. In addition, the uneven temperature difference can easily lead to uneven heating of various components of the electrolytic cell, which can easily cause the risk of cell leakage, reduce electrolysis efficiency and increase electrolysis cost.

[0003] Therefore, it is necessary to provide a two-plate, three-cavity pressureless cooling electrolytic cell and an electrolysis method. Summary of the Invention

[0004] The present invention provides a two-plate, three-cavity pressureless cooling electrolytic cell and electrolysis method, which effectively solves the problem of uneven heating of various components of the electrolytic cell in the existing electrolysis process.

[0005] The technical solution adopted in this invention is:

[0006] A two-plate, three-cavity pressureless cooling electrolytic cell includes several electrolytic components and a diaphragm disposed between the electrolytic components. Each electrolytic component includes an electrode frame, a first electrode plate, a second electrode plate, a positive electrode, and a negative electrode disposed on the electrode frame. The electrolytic component also includes a heat exchange plate disposed on the electrode frame. The first electrode plate and the second electrode plate are respectively disposed on both sides of the heat exchange plate. The electrode frame is provided with an inlet and an outlet. The heat exchange plate, the first electrode plate, and the second electrode plate form a heat exchange cavity. The two ends of the heat exchange cavity are respectively connected to the inlet and the outlet.

[0007] Furthermore, the pole frame is provided with a first through hole and a second through hole, the water inlet is located on the side wall of the first through hole, and the water outlet is located on the side wall of the second through hole.

[0008] Furthermore, the heat exchange chamber includes several equidistantly arranged transverse through holes, a first vertical through hole connecting one end of an adjacent transverse through hole, and a second vertical through hole connecting the other end of an adjacent transverse through hole. The water inlet and water outlet are respectively connected to the outermost transverse through hole.

[0009] Furthermore, the electrode frame is annular, and the heat exchange plate, the first electrode plate, and the second electrode plate are all circular, with the edge of the heat exchange plate fixedly connected to the inner wall of the electrode frame.

[0010] Furthermore, the two outermost electrolysis components are respectively provided with a No. 1 pressure plate and a No. 2 pressure plate. The No. 1 pressure plate includes a No. 1 disc and two No. 1 supports that are fixedly connected to the No. 1 disc and are symmetrical. The No. 2 pressure plate includes a No. 2 disc and two No. 2 supports that are fixedly connected to the No. 2 disc and are symmetrical. The No. 1 disc is provided with an inlet hole that communicates with the water inlet and an outlet hole that communicates with the water outlet.

[0011] Furthermore, the first disc is provided with a plurality of first mounting holes in its circumference, and the second disc is provided with second mounting holes in its circumference that correspond one-to-one with the first mounting holes.

[0012] Furthermore, the No. 1 support is provided with a No. 3 mounting hole, and the No. 2 support is provided with a No. 4 mounting hole.

[0013] Furthermore, the electrode frame is also provided with through holes No. 3, No. 4 and No. 5. The electrode frame, the first electrode plate and the positive electrode form cavity No. 1, and the electrode frame, the second electrode plate and the negative electrode form cavity No. 2. The side wall of through hole No. 4 is provided with an oxygen end liquid outlet that communicates with cavity No. 1. The side wall of through hole No. 5 is provided with a hydrogen end liquid outlet that communicates with cavity No. 2. Both cavity No. 1 and cavity No. 2 are provided with inlets that communicate with through hole No. 3. The pressure plate No. 1 is provided with an outlet No. 1 that communicates with the oxygen end liquid outlet, an outlet No. 2 that communicates with the hydrogen end liquid outlet and an inlet that communicates with the inlet.

[0014] Furthermore, the electrode frame is provided with a first step for limiting the first electrode plate, a second step for limiting the second electrode plate, and a third step for limiting the diaphragm.

[0015] The electrolysis method of the electrolytic cell adopts the two-plate three-cavity pressureless cooling electrolytic cell. During the electrolysis process, cooling water enters the heat exchange cavity from the inlet. During the flow in the heat exchange cavity, it dissipates heat and cools the first electrode plate and the second electrode plate, and exchanges heat, thereby reducing the temperature difference between the first electrode plate and the second electrode plate and reducing the temperature of the first electrode plate and the second electrode plate. Then it flows out from the outlet.

[0016] Beneficial effects of the invention:

[0017] 1. By adding a heat exchange cavity between the heat exchange plate, the first electrode plate, and the second electrode plate, a cooling water flow is formed. The cooling water flows in the heat exchange cavity, causing heat exchange and cooling between the first electrode plate and the second electrode plate. This achieves uniform heating of the first electrode plate and the second electrode plate, improves electrolysis efficiency, reduces the risk of deformation of various components of the electrolytic cell due to uneven heating, which may lead to seal breakage, and reduces the risk of cell leakage.

[0018] 2. The heat exchange chamber uses multiple transverse through holes, a first vertical through hole, and a second vertical through hole connected end to end. This slows down the flow rate as much as possible, increases the flow time, and increases the contact area between the cooling water and the first and second electrode plates, which can effectively improve the heat exchange effect of the first and second electrode plates.

[0019] 3. The structural design and specific implementation of the No. 1 and No. 2 pressure plates can ensure the compression of each electrolysis component and facilitate the flow of cooling water.

[0020] 4. The pole frame is set as annular and the heat exchange plate is set as circular, which facilitates the assembly of the pole frame and the heat exchange plate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the electrolysis assembly of a two-plate, three-cavity pressureless cooling electrolytic cell provided in an embodiment of this application.

[0022] Figure 2 A cross-sectional view of the electrolysis assembly of a two-plate, three-chamber pressureless cooled electrolytic cell provided in an embodiment of this application.

[0023] Figure 3 This is a schematic diagram of the electrode frame and heat exchange plate of a two-plate, three-cavity pressureless cooling electrolytic cell provided in an embodiment of this application.

[0024] Figure 4 An exploded view of a two-plate, three-chamber pressureless cooling electrolytic cell provided for an embodiment of this application.

[0025] The diagram is labeled as follows: 1. Electrolysis assembly; 2. Diaphragm; 11. Electrode frame; 12. First electrode plate; 13. Second electrode plate; 14. Positive electrode; 15. Negative electrode; 16. Heat exchange plate; 100. Inlet; 200. Outlet; 300. Heat exchange chamber; 1101. Through hole No. 1; 1102. Through hole No. 2; 301. Horizontal through hole; 302. Vertical through hole No. 1; 303. Vertical through hole No. 2; 3. Pressure plate No. 1; 4. Pressure plate No. 2; 31. 31. Disc No. 1; 32. Support No. 1; 41. Disc No. 2; 42. Support No. 2; 310. Mounting Hole No. 1; 410. Mounting Hole No. 2; 320. Mounting Hole No. 3; 420. Mounting Hole No. 4; 1103. Through Hole No. 3; 1104. Through Hole No. 4; 1105. Through Hole No. 5; 3001. Liquid Outlet No. 1; 3002. Liquid Outlet No. 2; 3003. Inlet; 111. Step No. 1; 112. Step No. 2; 113. Step No. 3. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] like Figure 1 , Figure 2 and Figure 4 As shown, the first embodiment provided in this application is a two-plate, three-cavity pressureless cooling electrolytic cell. Its structure includes several electrolytic components 1 and a diaphragm 2 disposed between the electrolytic components 1. The electrolytic components 1 include an electrode frame 11, a first electrode plate 12, a second electrode plate 13, a positive electrode 14, and a negative electrode 15 disposed on the electrode frame 11. The electrolytic components 1 also include a heat exchange plate 16 disposed on the electrode frame 11. The first electrode plate 12 and the second electrode plate 13 are respectively disposed on both sides of the heat exchange plate 16. The electrode frame 11 is provided with an inlet 100 and an outlet 200. The heat exchange plate 16, the first electrode plate 12, and the second electrode plate 13 form a heat exchange cavity 300. The two ends of the heat exchange cavity 300 are respectively connected to the inlet 100 and the outlet 200.

[0028] In actual use, during the electrolysis process, under normal pressure, cooling water enters the heat exchange chamber 300 from the inlet 100. During the flow in the heat exchange chamber 300, it dissipates heat and cools the first electrode plate 12 and the second electrode plate 13, and then flows out from the outlet 200.

[0029] In the above design, a heat exchange chamber 300 can be formed by heat exchange plate 16, first electrode plate 12 and second electrode plate 13. The flow of cooling water in the heat exchange chamber 300 reduces the temperature difference between the first electrode plate 12 and the second electrode plate 13, thereby reducing the temperature of the first electrode plate 12 and the second electrode plate 13, improving the uniformity of the electrolysis reaction and reducing the risk of tank leakage.

[0030] Specifically: such as Figure 2 As shown, the pole frame 11 is provided with a first through hole 1101 and a second through hole 1102. The water inlet 100 is provided on the side wall of the first through hole 1101, and the water outlet 200 is provided on the side wall of the second through hole 1102.

[0031] In actual use, cooling water enters the inlet 100 through the first through hole 1101, flows out through the outlet 200, and then enters the external return flow device through the second through hole 1102.

[0032] In the above design, the structural design and specific implementation of the first through hole 1101 and the second through hole 1102 facilitate the manufacturing of the pole frame 11 and its connection with external devices.

[0033] Specifically: such as Figure 2 and Figure 3As shown, the heat exchange chamber 300 includes several equidistantly arranged transverse through holes 301, a first vertical through hole 302 connecting one end of an adjacent transverse through hole 301, and a second vertical through hole 303 connecting the other end of an adjacent transverse through hole 301. The inlet 100 and the outlet 200 are respectively connected to the outermost transverse through hole 301.

[0034] In actual use, cooling water flows from the inlet 100 into the horizontal through-hole 301 on one side, and then passes through the other two vertical through-holes 303 and the horizontal through-hole 301 in sequence. Finally, it flows out from the outlet 200.

[0035] In the above design, the structural design and specific implementation of the heat exchange chamber 300 can effectively increase the flow range of cooling water, improve the heat exchange of the first electrode plate 12 and the second electrode plate 13, and reduce the temperature difference between the first electrode plate 12 and the second electrode plate 13.

[0036] Specifically: such as Figure 4 As shown, the pole frame 11 is annular, and the heat exchange plate 16, the first electrode plate 12 and the second electrode plate 13 are all circular. The edge of the heat exchange plate 16 is fixedly connected to the inner wall of the pole frame 11.

[0037] In the above design, the structural design and specific implementation of the electrode frame 11, heat exchange plate 16, first electrode plate 12, and second electrode plate 13 can effectively realize the assembly of the electrolysis component 1.

[0038] Specifically: such as Figure 4 As shown, the two outermost electrolysis components 1 are respectively provided with a first pressure plate 3 and a second pressure plate 4. The first pressure plate 3 includes a first disc 31 and two first supports 32 that are fixedly connected to the first disc 31 and are symmetrical. The second pressure plate 4 includes a second disc 41 and two second supports 42 that are fixedly connected to the second disc 41 and are symmetrical. The first disc 31 corresponds to the second disc 41, and the first support 32 corresponds to the second support 42. The first disc 31 is provided with an inlet hole that communicates with the inlet 100 and an outlet hole that communicates with the outlet 200.

[0039] In actual use, the No. 1 pressure plate 3 and the No. 2 pressure plate 4 are connected by external fasteners to secure several electrolysis components 1. The No. 1 support 32 and the No. 2 support 42 are used to fix the No. 1 pressure plate 3 and the No. 2 pressure plate 4. Cooling water is sent into the inlet 100 through the water inlet hole, and the cooling water flows out from the outlet 200 and then into the outlet hole.

[0040] In the above design, the structural design and specific implementation of the No. 1 pressure plate 3 and the No. 2 pressure plate 4 can ensure the compression of each electrolysis component 1 and facilitate the flow of cooling water.

[0041] Specifically: such as Figure 4 As shown, the first disk 31 is provided with a plurality of first mounting holes 310 in the circumference, and the second disk 41 is provided with second mounting holes 410 in the circumference that correspond one-to-one with the first mounting holes 310.

[0042] In actual use, the first disc 31 and the second disc 41 are fixed by external fasteners passing through the first mounting hole 310 and the second mounting hole 410.

[0043] In the above design, the structural design and specific implementation of disk 31 and disk 41 can effectively achieve the connection with external fasteners.

[0044] Specifically: such as Figure 4 As shown, the first support 32 is provided with the third mounting hole 320, and the second support 42 is provided with the fourth mounting hole 420.

[0045] In actual use, the first support 32 is fixed to the external device by passing an external bolt through the third mounting hole 320, and the second support 42 is fixed to the external device by passing an external bolt through the fourth mounting hole 420.

[0046] In the above design, the structural design and specific implementation of mounting holes 320 and 420 can effectively realize the fixation of pressure plate 3 and pressure plate 4 on the external device.

[0047] Specifically: such as Figure 1 , Figure 3 and Figure 4 As shown, the electrode frame 11 is also provided with a third through hole 1103, a fourth through hole 1104, and a fifth through hole 1105. The electrode frame 11, the first electrode plate 12, and the positive electrode 14 form a first cavity, and the electrode frame 11, the second electrode plate 13, and the negative electrode 15 form a second cavity. The side wall of the fourth through hole 1104 is provided with an oxygen end liquid outlet that communicates with the first cavity, and the side wall of the fifth through hole 1105 is provided with a hydrogen end liquid outlet that communicates with the second cavity. Both the first and second cavities are provided with inlets that communicate with the third through hole 1103. The first pressure plate 3 is provided with a first liquid outlet 3001 that communicates with the oxygen end liquid outlet, a second liquid outlet 3002 that communicates with the hydrogen end liquid outlet, and an inlet 3003 that communicates with the inlet.

[0048] In actual use, the electrolyte flows into chamber 1 and chamber 2 from the inlet, and after electrolysis, it flows out from chamber 1.

[0049] In the above design, the structural design of the pole frame 11 facilitates the diversion of liquid after electrolysis.

[0050] Specifically: such as Figure 1As shown, the electrode frame 11 is provided with a first step 111 for limiting the first electrode plate 12, a second step 112 for limiting the second electrode plate 13, and a third step 113 for limiting the diaphragm 2.

[0051] In the above design, the design of step 111 facilitates the precise positioning and installation of the first electrode plate 12 and the electrode frame 11, the design of step 112 facilitates the precise installation and positioning of the second electrode plate 13 and the electrode frame 11, and the design of step 113 facilitates the precise installation and positioning of the diaphragm 2 and the electrode frame 11.

[0052] The second embodiment provided in this application is an electrolysis method for an electrolytic cell. The two-plate, three-cavity pressureless cooling electrolytic cell is used. During the electrolysis process, cooling water enters the heat exchange chamber 300 from the inlet 100. During the flow in the heat exchange chamber 300, it dissipates heat and cools the first electrode plate 12 and the second electrode plate 13, and exchanges heat, thereby reducing the temperature difference between the first electrode plate 12 and the second electrode plate 13 and reducing the temperature of the first electrode plate 12 and the second electrode plate 13. Then, it flows out from the outlet 200.

[0053] The above design enables heat exchange between the first electrode plate 12 and the second electrode plate 13 during the electrolysis process.

[0054] In further detail, it should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A two-plate, three-cavity pressureless cooling electrolytic cell, comprising a plurality of electrolytic components (1) and a diaphragm (2) disposed between the electrolytic components (1), wherein the electrolytic component (1) comprises an electrode frame (11), a first electrode plate (12), a second electrode plate (13), a positive electrode (14), and a negative electrode (15) disposed on the electrode frame (11), characterized in that: The electrolysis assembly (1) further includes a heat exchange plate (16), which is disposed on the electrode frame (11). The first electrode plate (12) and the second electrode plate (13) are respectively disposed on both sides of the heat exchange plate (16). The electrode frame (11) is provided with an inlet (100) and an outlet (200). The heat exchange plate (16), the first electrode plate (12) and the second electrode plate (13) form a heat exchange cavity (300). The two ends of the heat exchange cavity (300) are respectively connected to the inlet (100) and the outlet (200).

2. The two-plate, three-cavity pressureless cooling electrolytic cell according to claim 1, characterized in that: The pole frame (11) is provided with a first through hole (1101) and a second through hole (1102). The water inlet (100) is provided on the side wall of the first through hole (1101), and the water outlet (200) is provided on the side wall of the second through hole (1102).

3. The two-plate, three-cavity pressureless cooling electrolytic cell according to claim 1, characterized in that: The heat exchange chamber (300) includes several equidistantly arranged transverse through holes (301), a first vertical through hole (302) connecting one end of an adjacent transverse through hole (301), and a second vertical through hole (303) connecting the other end of an adjacent transverse through hole (301). The inlet (100) and outlet (200) are respectively connected to the outermost transverse through hole (301).

4. The two-plate, three-cavity pressureless cooling electrolytic cell according to claim 1, characterized in that: The pole frame (11) is annular, and the heat exchange plate (16), the first electrode plate (12) and the second electrode plate (13) are all circular. The edge of the heat exchange plate (16) is fixedly connected to the inner wall of the pole frame (11).

5. The two-plate, three-cavity pressureless cooling electrolytic cell according to claim 1, characterized in that: The two outermost electrolysis components (1) are respectively provided with a No. 1 pressure plate (3) and a No. 2 pressure plate (4). The No. 1 pressure plate (3) includes a No. 1 disc (31) and two No. 1 supports (32) that are fixedly connected to the No. 1 disc (31) and are symmetrical. The No. 2 pressure plate (4) includes a No. 2 disc (41) and two No. 2 supports (42) that are fixedly connected to the No. 2 disc (41). The No. 1 disc (31) corresponds to the No. 2 disc (41), and the No. 1 support (32) corresponds to the No. 2 support (42). The No. 1 disc (31) is provided with an inlet hole that communicates with the inlet (100) and an outlet hole that communicates with the outlet (200).

6. The two-plate, three-cavity pressureless cooling electrolytic cell according to claim 5, characterized in that: The first disk (31) is provided with a plurality of first mounting holes (310) in the circumferential direction, and the second disk (41) is provided with second mounting holes (410) in the circumferential direction that correspond one-to-one with the first mounting holes (310).

7. The two-plate, three-cavity pressureless cooling electrolytic cell according to claim 5, characterized in that: The first support (32) is provided with a third mounting hole (320), and the second support (42) is provided with a fourth mounting hole (420).

8. The two-plate, three-cavity pressureless cooling electrolytic cell according to claim 5, characterized in that: The electrode frame (11) is also provided with a third through hole (1103), a fourth through hole (1104), and a fifth through hole (1105). The electrode frame (11), the first electrode plate (12), and the positive electrode (14) form a first cavity, and the electrode frame (11), the second electrode plate (13), and the negative electrode (15) form a second cavity. The side wall of the fourth through hole (1104) is provided with an oxygen end that is connected to the first cavity. The side wall of the No. 5 through hole (1105) is provided with a hydrogen end liquid outlet that is connected to the No. 2 cavity. Both the No. 1 cavity and the No. 2 cavity are provided with liquid inlets that are connected to the No. 3 through hole (1103). The No. 1 pressure plate (3) is provided with a No. 1 liquid outlet (3001) that is connected to the oxygen end liquid outlet, a No. 2 liquid outlet (3002) that is connected to the hydrogen end liquid outlet, and an inlet (3003) that is connected to the liquid inlet.

9. The two-plate, three-cavity pressureless cooling electrolytic cell according to claim 1, characterized in that: The electrode frame (11) is provided with a first step (111) for limiting the first electrode plate (12), a second step (112) for limiting the second electrode plate (13), and a third step (113) for limiting the diaphragm (2).

10. An electrolysis method for an electrolytic cell, employing the two-plate, three-cavity pressureless cooling electrolytic cell as described in any one of claims 1 to 10, characterized in that: During the electrolysis process, cooling water enters the heat exchange chamber (300) from the inlet (100). During the flow in the heat exchange chamber (300), it dissipates heat and cools the first electrode plate (12) and the second electrode plate (13), thereby reducing the temperature difference between the first electrode plate (12) and the second electrode plate (13) and lowering the temperature of the first electrode plate (12) and the second electrode plate (13). Then, it flows out from the outlet (200).

Images