Electrolytic bath structure

Abstract

An electrolytic bath structure comprises a plurality of pole frames clamped between two end pressing plates, and a hole channel formed by overlapping inner holes of the plurality of pole frames is divided into a plurality of electrolytic chambers by a plurality of pole plates and a plurality of diaphragms which are distributed in a staggered manner, and is characterized in that the pole frames are plastic pole frames; the plurality of polar plates and the plurality of diaphragms are respectively clamped between two different adjacent polar frames, and the bottoms of the polar frames, the polar plates and the diaphragms are respectively provided with two liquid inlet through holes which are respectively used for forming an anode electrolysis chamber liquid inlet channel and a cathode electrolysis chamber liquid inlet channel; and two air outlet through holes for forming an air outlet channel of the anode electrolysis chamber and an air outlet channel of the cathode electrolysis chamber are formed in the tops of the anode electrolysis chamber and the cathode electrolysis chamber respectively. The plastic electrode frames are adopted, machining is convenient, the electrode plates are not welded to the electrode frames but clamped between the two electrode frames, production efficiency is improved, the thickness of the electrode frames can be made to be thin and can be half of that of an original metal electrode frame, meanwhile, due to the fact that welding is not needed, the electrode plates are not prone to deformation, and the yield of products is improved.

Description

Technical Field

[0001] This utility model belongs to the field of electrolytic cell technology, and in particular relates to an electrolytic cell structure. Background Technology

[0002] An electrolytic cell is a device used to carry out electrolytic reactions and is widely used in various fields.

[0003] In the prior art, the electrolytic cell includes multiple metal electrode frames sandwiched between two end plates, such as Figure 5 As shown, the channels formed by the superimposed inner holes of multiple electrode frames 1 are divided into multiple electrolysis chambers by multiple electrode plates 2 and multiple diaphragms 3 distributed in an alternating manner. The electrode plates 2 are welded into the inner holes of the metal electrode frames 1, and the diaphragms 3 are sandwiched between two adjacent metal electrode frames 1. The metal electrode frames 1 are machined, which has low processing efficiency. In order to weld the electrode plates 2, the metal electrode frames 1 are relatively thick, which increases the cost. The inner holes of the metal electrode frames 1 are welded to the periphery of the electrode plates 2. Due to the long weld seam, the welding time is long. In addition, because the electrode plates 2 are relatively thin, they are easy to deform during welding. Utility Model Content

[0004] Based on this, an electrolytic cell structure is provided to address the aforementioned technical problems.

[0005] The technical solution adopted in this utility model is as follows:

[0006] An electrolytic cell structure includes multiple electrode frames sandwiched between two end plates. The channels formed by the overlapping inner holes of the multiple electrode frames are divided into multiple electrolytic chambers by multiple electrode plates and multiple diaphragms distributed in an alternating manner. The electrode frames are plastic, and the multiple electrode plates and multiple diaphragms are respectively sandwiched between different adjacent electrode frames. The bottom of each electrode frame, electrode plate, and diaphragm has two liquid inlet holes for forming a liquid inlet channel for the anode electrolytic chamber and a liquid inlet channel for the cathode electrolytic chamber, respectively. The top of each electrode frame, electrode plate, and diaphragm has two gas outlet holes for forming a gas outlet channel for the anode electrolytic chamber and a gas outlet channel for the cathode electrolytic chamber, respectively.

[0007] This invention uses a plastic electrode frame, which is easy to process. The electrode plate is not welded to the electrode frame, but is sandwiched between two electrode frames. This not only improves production efficiency, but also allows the electrode frame to be made thinner, which can be half the thickness of the original metal electrode frame. At the same time, since welding is not required, the electrode plate is not easily deformed, thus improving the product yield. Attached Figure Description

[0008] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0009] Figure 1 A schematic diagram of an electrolytic cell structure provided in an embodiment of this utility model;

[0010] Figure 2 A schematic diagram showing the distribution of the electrode frame, electrode plates, and diaphragm in an electrolytic cell structure provided by an embodiment of this utility model;

[0011] Figure 3 A schematic diagram of two opposing electrode frames on opposite sides of an electrolytic cell structure provided in an embodiment of this utility model;

[0012] Figure 4 An exploded view of an electrolytic cell structure provided in this embodiment of the present invention, showing multiple electrode frames sandwiched between two end plates;

[0013] Figure 5 This is a schematic diagram showing the distribution of the electrode frame, electrode plates, and diaphragm in an existing electrolytic cell. Detailed Implementation

[0014] The embodiments of this utility model will be described below with reference to the accompanying drawings. It should be noted that the embodiments described in this specification are not exhaustive and do not represent the only embodiments of this utility model. The following corresponding embodiments are only for clearly illustrating the utility model content of this patent and are not intended to limit its implementation. For those skilled in the art, different variations and modifications can be made based on the described embodiments. Any obvious variations or modifications that fall within the technical concept and utility model content of this utility model are also within the protection scope of this utility model.

[0015] like Figure 1 and Figure 2 As shown, this application provides an electrolytic cell structure, including a cell body 110, multiple electrode frames 120, multiple electrode plates 130, and multiple diaphragms 140.

[0016] Multiple pole frames 120 are sandwiched between two end plates 111 of the groove 110. Multiple pole plates 130 and multiple diaphragms 140 are staggered and sandwiched between different adjacent pole frames 120, so that the inner holes 121 of the multiple pole frames 120 (see...) Figure 3 The superimposed channels are divided into multiple electrolysis chambers, see [link / reference]. Figure 2 Nickel mesh is provided on both sides of the diaphragm 140, and the nickel mesh is held and fixed by the nipple structure on the two side plates 130.

[0017] Figure 4 An exploded view of multiple pole frames 120 sandwiched between two end plates 111 is shown. For ease of viewing, only two pole frames 120 are shown in the figure.

[0018] In this embodiment, the electrode frame 120 is a plastic electrode frame. Multiple electrode frames 120 are processed using only one injection mold. Two electrode frames 120 can be stacked face-to-face, thus dividing the multiple electrode frames 120 into multiple electrode frame pairs. Each electrode frame pair has two electrode frames arranged face-to-face. The diaphragm 140 is sandwiched between two face-to-face electrode frames, while the electrode plate 130 is sandwiched between two face-to-face electrode frames. (See also...) Figure 2 .

[0019] like Figure 3 As shown, the electrode frame 120 has two liquid inlet holes 122 and two gas outlet holes 123. The two liquid inlet holes 122 are located at the lower left and lower right corners of the electrode frame 120, respectively. One is used to form a liquid inlet channel for the anode electrolysis chamber with the corresponding through holes on the electrode plate 130 and the diaphragm 140, so as to introduce liquid into the anode electrolysis chamber. The other is used to form a liquid inlet channel for the cathode electrolysis chamber with the corresponding through holes on the electrode plate 130 and the diaphragm 140, so as to introduce liquid into the cathode electrolysis chamber. The two gas outlet holes 123 are located at the upper left and upper right corners of the electrode frame 120, respectively. One is used to form a gas outlet channel for the anode electrolysis chamber with the corresponding through holes on the electrode plate 130 and the diaphragm 140, so as to output oxygen generated in the anode electrolysis chamber. The other is used to form a gas outlet channel for the cathode electrolysis chamber with the corresponding through holes on the electrode plate 130 and the diaphragm 140, so as to output hydrogen generated in the cathode electrolysis chamber.

[0020] The vertical center line of the rectangular inner hole 121 coincides with the vertical center line of the pole frame 120, and the two liquid inlet holes 122 and the two air outlet holes 123 are arranged symmetrically along the aforementioned vertical center line.

[0021] The front side of the electrode frame 120 has a first groove, in which an integrally formed first sealing ring 124, a second sealing ring 125, and a third sealing ring 126 are disposed. The first sealing ring 124 surrounds the inner hole 121 and two liquid inlet holes 122 and two gas outlet holes 123. The second sealing ring 125 and the third sealing ring 126 surround one liquid inlet hole 122 and one gas outlet hole 123, respectively. The first sealing ring 124 is used to seal the electrolysis chamber between the electrode frame 120 and the electrode plate 130. The second sealing ring 125 and the third sealing ring 126 are used to prevent liquid and gas from crossing between the anode electrolysis chamber and the cathode electrolysis chamber.

[0022] The reverse side of the electrode frame 120 has a second groove along the edge of the inner hole 121 of the electrode frame. A fourth sealing ring 127 is provided in the second groove, which surrounds only the inner hole 121, to press the diaphragm 140 on one side to prevent gas leakage between the anode electrolysis chamber and the cathode electrolysis chamber. The vertical center line of the fourth sealing ring 127 coincides with the vertical center line of the electrode frame 120.

[0023] The reverse side of the electrode frame 120 is also fixed with a fifth sealing ring (not shown in the figure) surrounding the edge of one of the liquid inlet holes 122 and a sixth sealing ring 128 surrounding the edge of one of the gas outlet holes 123. The fifth sealing ring and the sixth sealing ring 128 are also used to prevent liquid and gas from crossing between the anode electrolysis chamber and the cathode electrolysis chamber, respectively.

[0024] In this embodiment, all the sealing rings are made of EPDM material, which is less expensive than the PTFE sealing gaskets used in the prior art and has less permanent compression deformation. Therefore, the electrolytic cell does not need to be tightened periodically during the later maintenance of the electrolytic cell.

[0025] The four corners of the front and back sides of the pole frame 120 have pins 129a and pin holes 129b for connecting with the pole plate 130 and connecting the pole frames 120. The two upper corners of the back side of the pole frame 120 are respectively provided with pins 129a and pin holes 129b, and the two are symmetrically arranged along the vertical center line of the pole frame 120. Similarly, the two lower corners of the back side of the pole frame 120 are respectively provided with pins 129a and pin holes 129b, and the two are symmetrically arranged along the vertical center line of the pole frame 120, so that when the two pole frames 120 are connected back to back, the pins 129a and pin holes 129b can be exactly opposite each other.

[0026] As can be seen from the above, the electrolytic cell structure provided in this application uses a plastic electrode frame, which is easy to process. The electrode plate is not welded to the electrode frame, but is sandwiched between two electrode frames. This not only improves production efficiency, but also allows the electrode frame to be made thinner, which can be half the thickness of the original metal electrode frame. At the same time, since welding is not required, the electrode plate is not easily deformed, thus improving the product yield.

[0027] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. An electrolytic cell structure, comprising multiple electrode frames sandwiched between two end plates, wherein the channels formed by the overlapping inner holes of the multiple electrode frames are divided into multiple electrolytic chambers by multiple electrode plates and multiple diaphragms arranged in an alternating manner, characterized in that, The electrode frame is a plastic electrode frame. The multiple electrode plates and multiple diaphragms are respectively sandwiched between different adjacent electrode frames. The bottom of the electrode frame, electrode plates and diaphragms each have two liquid inlet holes for forming the liquid inlet channel of the anode electrolysis chamber and the liquid inlet channel of the cathode electrolysis chamber, respectively. The top of each electrode frame each has two gas outlet holes for forming the gas outlet channel of the anode electrolysis chamber and the gas outlet channel of the cathode electrolysis chamber, respectively.

2. The electrolytic cell structure according to claim 1, characterized in that, The vertical center line of the inner hole of the electrode frame coincides with the vertical center line of the electrode frame. The two liquid inlet holes are arranged symmetrically on the left and right along the vertical center line. The two air outlet holes are arranged symmetrically on the left and right along the vertical center line. The electrode plate is sandwiched between two adjacent electrode frames facing each other on the front side. The diaphragm is sandwiched between two adjacent electrode frames facing each other on the back side.

3. The electrolytic cell structure according to claim 2, characterized in that, The electrode frame and the electrode plate have an inner hole surrounding the electrode frame and a first sealing ring for the two liquid inlet holes and the two air outlet holes.

4. The electrolytic cell structure according to claim 3, characterized in that, The electrode frame and the electrode plate also have a second sealing ring surrounding the edge of one of the liquid inlet holes and a third sealing ring surrounding the edge of one of the air outlet holes.

5. The electrolytic cell structure according to claim 4, characterized in that, The first sealing ring, the second sealing ring, and the third sealing ring are integrally formed and connected.

6. The electrolytic cell structure according to claim 5, characterized in that, The front side of the pole frame has a first groove corresponding to the first sealing ring, the second sealing ring and the third sealing ring, and the first sealing ring, the second sealing ring and the third sealing ring are disposed in the first groove.

7. The electrolytic cell structure according to claim 3, characterized in that, Between two adjacent pole frames containing the diaphragm, there is a fourth sealing ring that presses against the diaphragm on one side and only surrounds the inner hole of the pole frame, the vertical center line of the fourth sealing ring coinciding with the vertical center line of the pole frame.

8. The electrolytic cell structure according to claim 7, characterized in that, The diaphragm is further provided with a fifth sealing ring around the edge of one of the liquid inlet holes and a sixth sealing ring around the edge of one of the air outlet holes between two adjacent pole frames.

9. An electrolytic cell structure according to claim 8, characterized in that, The reverse side of the pole frame has a second groove corresponding to the fourth sealing ring, the fourth sealing ring is disposed in the second groove, and the fifth sealing ring and the sixth sealing ring are respectively fixed to the reverse side of the pole frame.

10. An electrolytic cell structure according to any one of claims 3-9, characterized in that, All sealing rings are EPDM sealing rings.

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