TWI748842B - Electrolysis tank with double spaces - Google Patents

Abstract

The present invention relates to an electrolysis tank with double spaces, comprises: a tank, a diaphragm unit, a fixing mechanism, a first sealing material and a second sealing material. A separate wall is provided inside the tanks for dividing the inner space of the tank into a single anode space and a single cathode space. The diaphragm unit separates the material that inside the anode space and the cathode space, and the fixing mechanism is assembled in the periphery of the diaphragm unit. Wherein, the first sealing material is connected between the separate wall and the fixing apparatus, the second sealing material is connected between the fixing apparatus, diaphragm and the separate wall. A plurality of sealing means of the present invention is applied between the diaphragm unit, the fixing mechanism and the separate wall, so the gaps between the members of the electrolysis tank will be sealed for preventing the anode electrolyte and the cathode electrolyte contact each other directly.

Description

Two tank electrolyzer

The present invention relates to an electrolytic cell with only two independent spaces to reduce the volume, in particular to an electrolytic cell using a plurality of sealing means to fix the diaphragm unit.

Generally, the electrolysis device is designed in a reaction tank with a partition structure to separate a plurality of independent spaces to form an anode chamber and a cathode chamber. Each independent space has an electrode plate and an electrode solution, and the partition structure can be ion exchange. It is provided by sandwiching a porous separator between the membrane or the frame.

The spacer structure in the reaction tank can provide cations and anions to move freely through multiple independent spaces, but it will inhibit the passage of molecules in the independent spaces and prevent the flow of molecules.

However, the spacer structure provides long-term use of cations and anions. Because the pores are blocked or old, the probability of cation and anion communication is reduced, resulting in poor reaction results. In addition, the spacer structure will also be affected by the molecules trying to pass through the spacer structure. The strong impact force generated by the block is notched or displaced, which makes it impossible to separate two independent spaces. To give play to the effect of the spacing structure, there is a need for improvement.

The main purpose of the present invention is to provide an electrolytic cell that is divided into two independent spaces by a barrier wall and a diaphragm unit to reduce the actual occupied volume of the entire cell body, and the inner wall of the electrolytic cell is provided with a plurality of seals between the fixing device and the diaphragm unit The material is used to close the gap between the components, so that the electrolyte can only circulate with each other from the diaphragm unit between the two independent spaces.

The secondary purpose of the present invention is to use a locking shutter on the top of the electrolytic cell to combine the sheet-shaped plug-in cathode and anode electrodes to increase the contact area between the electrodes and the electrolyte and increase the chance of reaction to improve the efficiency of electrolysis.

In order to achieve the foregoing objectives, the two-cell electrolytic cell of the present invention is mainly composed of a tank body, a diaphragm unit, a fixing device, a first sealing material and a second sealing material. The tank body is provided with a barrier wall to separate the inside. A single anode space and a single cathode space are formed. The barrier wall is provided with an opening that communicates the anode space and the cathode space with each other, and the above-mentioned diaphragm unit can separate the anode space and the internal products of the cathode space. The fixing device is assembled on the periphery of the diaphragm unit, so that the diaphragm unit forms a covered peripheral area and an uncovered central area, and the fixing device is connected with the barrier wall of the tank, so that the diaphragm unit is positioned at On the side of the opening, the first sealing material is connected between the barrier wall and the fixing device, and the second sealing material is connected between the fixing device, the diaphragm unit and the barrier wall.

In a preferred implementation, the above-mentioned fixing device includes a covering frame, a sandwich frame between the covering frame and the barrier wall, and a plurality of locking members, and the covering frame is provided with a first opening that is the same as the outline of the central area And a plurality of first lock holes, the interlayer frame is provided with a second through opening larger than the outline of the central area and a plurality of second lock holes, and the lock members pass through the first lock holes and the second lock holes to communicate with each other The barrier wall is connected.

The first sealing material is connected to an outer side surface of the interlayer frame and a surface of the barrier wall, so that an adjacent surface of the interlayer frame directly contacts the surface of the barrier wall.

However, the size of the above-mentioned diaphragm unit is larger than the first port, and the second sealing material is filled between the fixing device, the diaphragm unit and the barrier wall, and the sandwich frame and the diaphragm unit are connected by the second sealing material. And the three barriers.

In this embodiment, the above-mentioned two-cell electrolytic cell further includes a third sealing material, and the third sealing material is filled in the first key hole, the second key hole, and a third key hole of the barrier wall , The cover frame, the interlayer frame, the fasteners and the barrier wall are connected by the third sealing material.

In addition, an outer flange extends horizontally from the top of the tank body, and an inner flange extends horizontally outward on opposite sides of the top of the barrier wall, and a plurality of shutters are assembled above the outer flange and the inner flange. , So that the anode space and the cathode space are covered.

Furthermore, one of the above-mentioned iso-shields is provided with an anode slot for inserting an anode electrode, so that one part of the anode electrode enters the anode space, and the other part is located outside the tank to connect to an external power source , The other of the shields is provided with a cathode slot for inserting a cathode electrode, so that one part of the cathode electrode enters the cathode space, and the other part is located outside the tank to connect to the external power source. Both the anode electrode and the cathode electrode are composed of two metal flat plates sandwiching a mesh plate, and the mesh plate is entirely located inside the anode space or the cathode space.

The feature of the present invention is to set a fixing device between the barrier wall and the diaphragm unit, and then use a sealing material to fill the gap between the barrier wall and the diaphragm unit, and use multiple sealing barriers to separate the tank body into two independent spaces , To reduce when the electrolysis reaction is not started, because the two independent spaces can circulate and cannot function, the two-cell electrolytic cell can firmly lock the barrier wall and the diaphragm unit to form two independent spaces.

In order to facilitate a deeper, clear and detailed knowledge and understanding of the structure, use and characteristics of the present invention, a preferred embodiment is given, and the detailed description is as follows in conjunction with the drawings:

Please refer to Figures 1 to 2, the two-cell electrolytic cell 1 of the present invention is mainly composed of a cell body 10, a diaphragm unit 20, a fixing device 30, a first sealing material 40 and a second sealing material 50 , A barrier wall 11 is provided inside the tank body 10 to separate an anode space 12 and a cathode space 13 into two independent spaces of the same volume, and an opening 14 is provided in the center of the barrier wall 11, the opening 14 A passage connecting the anode space 12 and the cathode space 13 is formed.

Please refer to FIGS. 1 to 2 again, around the top 15 of the tank body 10 there is an outer flange 16 extending in the horizontal direction away from the tank body 10 around the top 15 of the tank body 10, and there are two opposite sides at the top 111 of the barrier wall 11 The opposite sides are respectively close to the horizontal direction of the tank body 10 to form an inner flange 17, and a plurality of shields 18 are arranged above the outer flange 16 and the inner flange 17 to cover the top 15 of the tank body 10. The plurality of fixing members 187 are penetrated into the outer flange 16, the inner flange 17, and the plurality of holes 19 on the shield plate 18 to penetrate and lock, so that the anode space 12 and the cathode space 13 are shielded. Covered by a plate 18, the tank body 10 can be insulated from the outside to form a closed space.

Please refer to FIGS. 1 to 2 again, one of the shutters 18 covering the anode space 12 is provided with an anode slot 181 to provide an anode electrode 182 for insertion and positioning, and the anode electrode 182 consists of a plurality of A metal plate 183 and a mesh plate 184 are formed. A part of the anode electrode 182 is formed by sandwiching the mesh plate 184 between the metal plates 183 to set the anode space 12 inside the tank body 10 and the tank body 10 A liquid 101 inside is contacted and reacted. The other part of the anode electrode 182 is composed of the metal plates 183 and is arranged outside the tank 10 to connect to an external power source 102 (see FIG. 8) to form a conductive path, so that the The anode electrode 182 electrolyzes the above-mentioned liquid 101 to generate an oxidation-reduction reaction. However, one of the shutters 18 covering the cathode space 13 is provided with a cathode slot 185 to provide a cathode electrode 186 for inserting and positioning, so that A part of the cathode electrode 186 is composed of the metal plates 183 sandwiching the mesh plate 184 so that the cathode space 13 provided in the tank body 10 reacts with the liquid 101 in the tank body 10, and the cathode electrode 186 The other part is composed of the metal plates 183 and is arranged outside the tank body 10 to connect the external power source 102 (see FIG. 8) to form a conductive path. In other words, the mesh plate 184 is arranged in the tank body 10 The anode space 12 and the cathode space 13.

Please refer to FIGS. 3-6. In one embodiment, the diaphragm unit 20 is disposed between the fixing device 30 and the barrier wall 11, so that the products generated in the anode space 12 and the cathode space 13 Can form different products without being mixed. Further, the diaphragm unit 20 has a peripheral area 21 covered by the fixing device 30 and the barrier wall 11 and a central area not covered by the fixing device 30 and the barrier wall 11 22. The size of the diaphragm unit 20 is larger than the opening 14 of the barrier wall 11.

Please refer to Figures 5 to 6, the fixing device 30 has a cover frame 32, a sandwich frame 33 and a plurality of locking members 31, the cover frame 32 and the barrier wall 11 sandwiched between the sandwich frame 33 and the diaphragm Unit 20. Further, the peripheral area 21 of the diaphragm unit 20 is connected in parallel to an inner side surface 331 of the interlayer frame 33, and the interlayer frame 33 vertically connects the covering frame 32 and the barrier wall 11, so that the covering frame 32 and the barrier wall 11 The barrier wall 11 has a space protruding from the same length of the interlayer frame 33 to accommodate the diaphragm unit 20. The covering frame 32 is larger in size than the opening 14 of the barrier wall 11 and has a central area 22 at the center that is the same as the central area 22 A contoured first opening 321. A plurality of first locking holes 322 are arranged at the same distance on the peripheral edge of the cover frame 32 to provide the locking members 31 to pass through. The size of the interlayer frame 33 is larger than the opening of the barrier wall 11 14 and there is a second opening 332 at the center that is larger than the outline of the central area 22, and a plurality of second keyholes 333 of the same size as the first keyholes 322 are distributed at the same distance on the peripheral edge of the sandwich frame 33 To provide the locking members 31 to be inserted through, the plurality of locking members 31 can be inserted into the first lock hole 322, the second lock hole 333, and the plurality of third lock holes 112 on the barrier wall 11 in order to connect and lock. The locking members 31 are composed of a plurality of screws 311 and nuts 312, and further the screws 311 have a first end 311a larger than the first locking hole 322 on the cover frame 32, and at the first end 311a There is a second end 311b on the opposite side of the second end 312a. The second end 312a is smaller than the first lock hole 322, the second lock hole 333 and the third lock hole 112 and penetrates the cover frame 32, the interlayer frame 33 and the The barrier wall 11 is connected. However, the nut 312 is provided on the side of the barrier wall 11 away from the sandwich frame 33. The second end 311b of the screw 311 has a screw pattern 311c that can be connected to a screw in the nut 312 The grooves 312a are occluded with each other to be bolted and fixed on two opposite sides of the barrier wall 11.

2 and 6, the first sealing material 40 is disposed along an outer side surface 334 of the sandwich frame 33 and gradually expands to a surface 113 connected to the barrier wall 11 to form a triangular shape, so that the barrier wall 11 The surface 113 can be vertically connected to an adjacent surface 335 of the interlayer frame 33, so that the interlayer frame 33 is disposed between the barrier wall 11 and the covering frame 32.

Please continue to refer to FIGS. 2 and 6, the second sealing material 50 is disposed on the peripheral area 21 of the diaphragm unit 20 and is parallel to the inner side surface 331 of the sandwich frame 33 and the surface 113 perpendicular to the barrier wall 11, so that the second sealing material 50 Two sealing materials 50 are filled in the second through opening 332 to connect the covering frame 32, the interlayer frame 33 and the barrier wall 11.

Please refer to Figures 2, 6 and 7, the gap between the hole 19 and the locking member 31 is filled with a third sealing material 60, and between the first locking holes 322 and the locking member 31 All the gaps between the second locking holes 333 and the locking member 31 and between the third locking holes 112 and the locking member 31 are filled with the third sealing material 60, the third sealing material 60 Fill the first lock hole 322 of the cover frame 32, the second lock hole 333 of the interlayer frame 33 and the third lock hole 112 of the barrier wall 11 in sequence, so that the diaphragm unit 20 can be stably fixed in the The barrier walls 11 are connected between the screw 311, the cover frame 32, the sandwich frame 33, the barrier wall 11 and the nut 312 in sequence.

Please refer to FIG. 2 to FIG. 4 and FIG. 8, a first side surface 103 of the tank body 10 and a second side surface 104 opposite to the first side surface 103 are provided with a plurality of circular holes 105 which can be connected to form a plurality of The upper discharge pipe 103a, the output pipe 104a, and the lower discharge pipe 103b. The upper discharge pipe 103a can communicate with the external space to allow the excess liquid 101 to output the tank body 10, and the lower discharge pipes 103b can communicate with the external space to make the required liquid 101 Into the tank body 10, in a preferred embodiment, the first side surface 103 is provided with two upper discharge pipes 103a and two lower discharge pipes 103b. Further, when the height of the liquid 101 in the tank body 10 is greater than that of the upper discharge pipe At the height of 103a, part of the above-mentioned liquid 101 will be discharged through the two upper discharge pipes 103a to prevent the above-mentioned liquid 101 from overflowing out of the tank body 10. The two lower discharge pipes 103b are connected to a switching unit 103c so that the switching unit 103c can enter the anode space 12 and the cathode space 13 through the two lower discharge pipes 103b, and the switching unit 103c can be connected to an aqueous solution storage tank at the same time. 103d and a brine storage tank 103e. The aqueous solution storage tank 103d and the brine storage tank 103e adjust the brine concentration required for the reaction of the two-cell electrolytic cell 1 through the switching unit 103c. One of the upper discharge pipes 103a and one of them Both lower discharge pipes 103b are connected to the anode space 12, and the other upper discharge pipe 103a and the other lower discharge pipe 103b are both connected to the cathode space 13. The second side surface 104 is provided with two output pipes 104a, The two output pipes 104a are connected with a gas-liquid connection to a gas-liquid mixing mechanism 104b, so that the product produced by the two-cell electrolytic cell 1 can act in the gas-liquid mixing mechanism 104b to form an oxidation system composite gaseous aqueous solution. The tube 104a is connected to the anode space 12 and the cathode space 13 respectively.

In this preferred embodiment, the two upper discharge pipes 103a, the two lower discharge pipes 103b, and the output pipe 104a are all provided with electric control valves 103f to limit the amount of the liquid 101 flowing out. However, in the interior of the tank 10 Install a liquid level sensor 70 and a temperature sensor 80, wherein the liquid level sensor 70 can sense the level of the liquid 101 in the tank 10, and the temperature sensor 80 can The temperature of the liquid 101 in the tank body 10 is sensed.

In a preferred embodiment, the third sealing material 60 can be removed to move the screws 311 out of the first locking holes 322, the second locking holes 333, and the third locking holes 112, and then the second sealing material 50 can be removed Between the diaphragm unit 20, the interlayer frame 33 and the barrier wall 11, and finally remove the first sealing material 40 between the interlayer frame 33 and the barrier wall 11, the covering frame 32, the interlayer frame 33 and the barrier wall 11 can be removed. The frame 33 is separated from the barrier wall 11, the diaphragm unit 20 clamped between the barrier walls 11 is taken out, and the diaphragm unit 20 is removed for arbitrary replacement.

The above-mentioned embodiments are only for convenience to illustrate the present invention and are not intended to limit them. Without departing from the scope of the present invention, those skilled in the industry who are familiar with the scope of the invention’s patent application and the description of the invention make various simple modifications and modifications should still be included. In the scope of the following patent applications.

1: Two-tank electrolyzer 10: tank 101: Liquid 102: External power supply 103: first side 103a: Upper discharge pipe 103b: Lower discharge pipe 103c: switching unit 103d: Aqueous solution storage tank 103e: brine storage tank 103f: Electric control valve 104: second side 104a: output tube 104b: Gas-liquid mixing mechanism 105: round hole 11: Barrier 111: top 112: third keyhole 113: Surface 12: Anode space 13: Cathode space 14: opening 15: top 16: outer flange 17: inner flange 18: Shutter 181: Anode Slot 182: Anode electrode 183: metal plate 184: Mesh plate 185: Cathode Slot 186: Cathode electrode 187: fixed parts 19: Hole 20: Diaphragm unit 21: Peripheral area 22: Central area 30: Fixing device 31: Lock firmware 311: Screw 311a: first end 311b: second end 311c: screw pattern 312: Nut 312a: screw pattern 32: cover frame 321: first port 322: first keyhole 33: mezzanine box 331: inside 332: second port 333: second keyhole 334: Outer Side 335: Adjacent face 40: The first sealing material 50: second sealing material 60: third sealing material 70: Liquid level sensor 80: temperature sensor

Figure 1 is a three-dimensional view of the two-cell electrolytic cell of the present invention; Figure 2 is a cross-sectional view of the use of the two-cell electrolytic cell of the present invention; Figure 3 is a cross-sectional view of line AA in Figure 1; Figure 4 is a cross-sectional view of line BB in Figure 1; Fig. 5 is an exploded schematic diagram of the assembling and fixing device inside the electrolytic cell; Figure 6 is an enlarged cross-sectional view of the fixing device combined with a plurality of sealing materials fixed in the electrolytic cell; Figure 7 is an enlarged cross-sectional view of the shutter installed on the top of the electrolytic cell; and Fig. 8 is a system block diagram of the two-cell electrolyzer of the present invention applied to the oxidation system compound gas electrolysis.

1: Two-tank electrolyzer

10: tank

104: second side

104a: output tube

105: round hole

15: top

18: Shutter

181: Anode Slot

185: Cathode Slot

187: fixed parts

Claims (6)

A two-cell electrolytic cell, comprising: a cell body provided with a barrier wall to separate the inside into a single anode space and a single cathode space, the barrier wall is provided with an opening to communicate the anode space and the cathode space with each other; and a diaphragm unit , Can separate the anode space and the internal products of the cathode space; a fixing device assembled on the periphery of the diaphragm unit, so that the diaphragm unit forms a covered peripheral area and an uncovered central area, the The fixing device has an outer side surface, an inner side surface, and an adjacent surface, and is connected with the barrier wall of the tank body, so that the diaphragm unit is positioned on one side of the opening, and the adjacent surface directly contacts the barrier wall. A surface; a first sealing material connected between the surface of the barrier wall and the outer side surface of the fixing device; and a second sealing material connected to the inner side surface of the fixing device, the diaphragm unit and the barrier Between the three of the surface of the wall. For example, the two-cell electrolytic cell described in item 1 of the scope of patent application, wherein the fixing device includes a covering frame, a sandwich frame between the covering frame and the barrier wall, and a plurality of locking members, and the covering frame is provided with an identical A first opening and a plurality of first keyholes in the outline of the central area, the sandwich frame is provided with a second opening larger than the outline of the central area and a plurality of second keyholes, and the locking members pass through the first A key hole and a second key hole are connected with the barrier wall. For example, the two-cell electrolytic cell described in item 2 of the scope of patent application, wherein the size of the diaphragm unit is larger than the first port, and the second sealing material is filled between the fixing device, the diaphragm unit and the barrier wall , The sandwich frame, the diaphragm unit and the barrier wall are connected by the second sealing material. As described in item 2 of the scope of patent application, the two-cell electrolytic cell further comprises a third sealing material, and the third sealing material is filled in the first keyhole and the second keyhole And in a third key hole of the barrier wall, the cover frame, the interlayer frame, the locking members and the barrier wall are connected by the third sealing material. For example, the two-cell electrolytic cell described in item 1 of the scope of patent application, wherein an outer flange is horizontally extended from the top of the tank body, and an inner flange is horizontally extended from the opposite sides of the top of the barrier wall, respectively, A plurality of shutters are assembled above the outer flange and the inner flange so that the anode space and the cathode space are covered. For example, the two-cell electrolytic cell described in item 5 of the scope of patent application, wherein one of the shutters is provided with an anode slot for inserting an anode electrode, so that a part of the anode electrode enters the anode space, The other part is located outside the tank to connect to an external power source. The other of the shields is provided with a cathode slot for a cathode electrode to insert, so that one part of the cathode electrode enters the cathode space, and the other Part of the anode electrode and the cathode electrode are located outside the tank to connect to the external power source. The anode electrode and the cathode electrode are both composed of two metal plates to clamp a mesh plate, and the mesh plate is entirely located inside the anode space or the cathode space.

Images