Stackable electrolytic cell with voltage detection plate

Abstract

The utility model relates to the technical field of water electrolysis hydrogen production, in particular to a stackable electrolytic bath with a voltage detection plate. The electrolytic tank unit comprises an electrode frame, a membrane electrode and a middle electrode plate, an inner frame is arranged in the center of the electrode frame in a hollowed-out mode, the two ends of the inner frame are each provided with a flow guide structure and a hydrogen through opening, and a micropore titanium plate and a titanium mesh are arranged in the inner frame from top to bottom; the upper electrode frame is provided with an anode sealing edge along the inner frame, the lower electrode frame is provided with a cathode sealing edge along the inner frame, the back surface of the upper electrode frame is attached to one side of the membrane electrode, the other side of the membrane electrode is attached to the back surface of the lower electrode frame, one surface of the electrode frame is attached to the middle electrode plate, and the middle electrode plate is provided with a water outlet, a water inlet and a hydrogen port. Compared with the prior art, superposition of a plurality of electrolytic tank units is achieved, the requirements for different oxyhydrogen gas flows are met, electrolysis voltage detection is achieved, the multiple units can be detected respectively, and the technological requirements for assembly and the like are lowered.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrolytic water hydrogen production technical field, concretely speaking, it is a kind of stackable electrolytic cell with voltage detection plate. BACKGROUND

[0002] Hydrogen-oxygen gas has good treatment or auxiliary treatment effect on human health, various diseases, and can be taken into human body by inhaling hydrogen-oxygen gas or drinking hydrogen-oxygen water. The way of generating hydrogen-oxygen gas usually adopts PEM electrolytic cell to generate hydrogen-oxygen gas, that is, PEM electrolytic cell generates hydrogen at the positive electrode and generates oxygen at the negative electrode. High-purity hydrogen can be obtained through this technical route, but if the voltage of single electrolytic cell exceeds a certain value, usually about 2.5V, ozone will be generated; if not controlled, the human body will intake ozone while taking in hydrogen and oxygen, and excessive intake of ozone will have a great impact on human health.

[0003] The purity of hydrogen generated by PEM electrolytic cell is extremely high, and the electrolytic voltage is not sensitive, but the generated oxygen is easily affected by the electrolytic voltage. Then how to solve the demand for different hydrogen-oxygen gas flow and how to obtain the electrolytic voltage of electrolytic cell in real time. UTILITY MODEL CONTENT

[0004] To solve the problems in the above background technology, the utility model provides a stackable electrolytic cell with voltage detection plate, which comprises electrolytic cell lower part, a plurality of single electrolytic cell units, electrolytic cell upper part and fastening screw group, the electrolytic cell lower part is sequentially composed of bottom plate, negative electrode plate and negative electrode spacing plate from bottom to top, and the electrolytic cell lower part is provided with mounting hole, the electrolytic cell unit comprises pole frame, membrane electrode and intermediate electrode plate, the pole frame is provided with inner frame in the center, and the inner frame is provided with flow guide structure and hydrogen gas port at both ends, and microporous titanium plate and titanium mesh are arranged in the inner frame from top to bottom, the pole frame comprises upper pole frame and lower pole frame, the upper pole frame is provided with anode sealing edge along the inner frame, the lower pole frame is provided with cathode sealing edge along the inner frame, the back surface of the upper pole frame is attached to one side of the membrane electrode, the other side of the membrane electrode is attached to the back surface of the lower pole frame, one side of the pole frame is attached to the intermediate electrode plate, and the intermediate electrode plate is provided with water outlet, water inlet and hydrogen gas port, and the electrolytic cell unit is provided with mounting hole, the electrolytic cell upper part is sequentially composed of water inlet and outlet end plate, positive electrode spacing plate and positive electrode plate from top to bottom, and the electrolytic cell upper part is provided with water inlet, water outlet, hydrogen outlet and mounting hole, and the fastening screw group is sequentially fixedly connected from bottom to top by penetrating the mounting hole electrolytic cell lower part, a plurality of electrolytic cell units and electrolytic cell upper part.

[0005] The electrolytic cell unit is composed of upper pole frame, titanium mesh, microporous titanium plate anode sealing edge and one side of membrane electrode to form anode chamber, and lower pole frame, microporous titanium plate, titanium mesh, cathode sealing edge and the other side of membrane electrode to form cathode chamber.

[0006] The water inlet, water outlet, flow guide structure of the pole frame of the intermediate electrode plate and the water inlet and water outlet positions of the upper part of the electrolytic cell correspond.

[0007] The hydrogen gas passage of the intermediate electrode plate, the hydrogen gas passage of the pole frame and the hydrogen outlet position of the upper part of the electrolytic cell correspond.

[0008] The flow guide structure comprises a water-repellent channel and a water passage, the water-repellent channel is a platform arranged in a concave-convex staggered manner, the water-repellent channel is provided with the water passage on one side, and the water passage is consistent with the width of the water-repellent channel.

[0009] The negative electrode plate, the intermediate electrode plate and the positive electrode plate are provided with protrusions on one side, and the protrusions are provided with wire holes.

[0010] The electrolytic cell is provided with a voltage detection plate on one side, the voltage detection plate is provided with a plurality of wire channels, the number of the wire channels corresponds to the number of the electrolytic cell units, the wire channels are provided with one end of a connecting wire, and the other end of the connecting wire is connected to the wire holes of the negative electrode plate, the intermediate electrode plate and the positive electrode plate.

[0011] Compared with the prior art, the utility model realizes the superposition of multiple electrolytic cell units, meets the demand of different hydrogen and oxygen gas flow, realizes electrolytic voltage detection, can detect multiple units respectively, reduces the types of materials, reduces the process requirements such as assembly, and has good economic value. DRAWINGS

[0012] Figure 1 It is a single-layer electrolytic cell sectional view;

[0013] Figure 2 It is a single-layer electrolytic cell explosion view;

[0014] Figure 3 It is a multi-layer electrolytic cell explosion view;

[0015] Figure 4 It is a multi-layer electrolytic cell structure schematic view;

[0016] Referring to Figure 1 , 1, electrolytic cell lower part, 2, electrolytic cell unit, 3, electrolytic cell upper part, 4, fastening screw group, 5, water inlet and outlet end plate, 6, positive electrode spacing plate, 7, positive electrode plate, 8, upper pole frame, 9, microporous titanium plate, 10, titanium mesh, 11, membrane electrode, 12, lower pole frame, 13, intermediate electrode plate, 14, negative electrode plate, 15, negative electrode spacing plate, 16, bottom plate, 17, inner frame, 18, flow guide structure, 19, hydrogen gas passage, 20, wire hole, 21, mounting hole, 22, water outlet, 23, hydrogen outlet, 24, water inlet, 25, voltage detection plate, 26, wire channel. DETAILED DESCRIPTION

[0017] The utility model makes further illustration according to the drawings.

[0018] As Figures 1 to 4 A stackable electrolytic cell with voltage detection plate, comprising electrolytic cell lower part 1, several single electrolytic cell units 2 electrolytic cell upper part 3 and fastening screw group 4, electrolytic cell lower part 1 is sequentially arranged from bottom to top by bottom plate 16, negative electrode plate 14 and negative electrode spacer 15 and is formed, electrolytic cell lower part 1 is equipped with mounting hole, electrolytic cell unit 2 includes pole frame, membrane electrode 11 and intermediate electrode plate 13, pole frame center hollow is equipped with inner frame 17, and each is equipped with flow guide structure 18 and hydrogen gas pass 19 at the both ends of inner frame 17, and micro-porous titanium plate 9 and titanium mesh 10 are arranged in inner frame 17 from top to bottom, and pole frame includes upper pole frame 8 and lower pole frame 12, and upper pole frame 8 is equipped with anode sealing edge along inner frame 17, and lower pole frame 12 is equipped with cathode sealing edge along inner frame 17, and upper pole frame 8 back surface is pasted with one side of membrane electrode 11, and the other side of membrane electrode 11 is pasted with the back surface of lower pole frame 12, and one side of pole frame is pasted with intermediate electrode plate 13, and intermediate electrode plate 13 is equipped with water outlet, water inlet and hydrogen gas pass, and electrolytic cell unit 2 is equipped with mounting hole, and electrolytic cell upper part 3 is sequentially arranged from top to bottom by inlet and outlet water end plate 5, positive electrode spacer 6, positive electrode plate 7 and is formed, and electrolytic cell upper part 3 is equipped with water inlet 24, water outlet 22, hydrogen outlet 23 and mounting hole, and fastening screw group 4 passes through mounting hole and sequentially fixes and connects electrolytic cell lower part 1, several electrolytic cell units 2, electrolytic cell upper part 3 from bottom to top.

[0019] Anode chamber is formed by upper pole frame 8, titanium mesh 10, micro-porous titanium plate 9 anode sealing edge and one side of membrane electrode 11 in electrolytic cell unit 2, and cathode chamber is formed by lower pole frame 12, micro-porous titanium plate 9, titanium mesh 10, cathode sealing edge and the other side of membrane electrode 11.

[0020] The position of water inlet, water outlet of intermediate electrode plate 13, flow guide structure 18 of pole frame and inlet and outlet water of electrolytic cell upper part 3 corresponds, and water can circulate in electrolytic cell.

[0021] Flow guide structure 18 includes hydrophobic channel and water channel, and hydrophobic channel is arranged in concave and convex staggered platform, and one side of hydrophobic channel is equipped with water channel, and the width of water channel is consistent with hydrophobic channel.

[0022] Negative electrode plate 14, intermediate electrode plate 13 and positive electrode plate 7 one side are equipped with protrusion, and protrusion is equipped with wiring hole 20 in, and is used for voltage detection wiring.

[0023] The electrolytic cell is provided with a voltage detection plate 25 on one side, and the voltage detection plate 25 is provided with a plurality of wire connection channels 26, the number of the wire connection channels 26 corresponding to the number of the electrolytic cell units 2, and the wire connection channels 26 are provided with one end of a connecting wire, and the other end of the connecting wire is connected to the wire connection holes 20 of the negative electrode plate 14, the intermediate electrode plate 13 and the positive electrode plate 7.

[0024] The wire connection holes of the negative electrode plate 14 are used for connecting the negative pole of the power supply, and the wire connection holes of the positive electrode plate 7 are used for connecting the positive pole of the power supply; the intermediate electrode plate 13 is provided with wire connection holes for connecting the voltage detection plate 25, and the connecting wires are connected to the voltage detection plate 25 in sequence from the negative pole to the positive pole.

[0025] The microporous titanium plate 9 is preferably made of 20-mesh titanium powder, and the titanium mesh 10 with a network structure is used, which has a certain space for water storage, expands the contact surface, and has conductivity. The microporous titanium plate 9, the titanium mesh 10 and the positive electrode plate 7 are made of pure titanium material, which reduces the corrosion of metal materials, improves the service life and economy, and the positive electrode spacer 6 is made of insulating material to avoid short circuit.

[0026] A plurality of electrolytic cell units 2 are connected to form a stackable electrolytic cell, which can be expanded, and the number of single electrolytic cell units 2 can be set according to the required hydrogen and oxygen flow.

[0027] In use, pure water or double-distilled water is pumped into the water inlet 24, passes through the water holes of the positive electrode spacer 6 and the water inlets of the positive electrode plate 7, and enters the anode chamber of the electrolytic cell through the flow guide structure 18 of the positive electrode frame. The current is guided to the membrane electrode 11, and the water is decomposed into H+ and O-2 under the joint action of the direct current and the catalyst; H+ cannot exist alone and quickly forms hydrogen gas under the action of the direct current negative electrode; similarly, O-2 cannot pass through the proton membrane and cannot exist alone, and quickly generates oxygen gas.

[0028] The voltage detection plate 25 detects the voltage difference between the negative pole and the positive pole; the voltage detection plate 25 detects these voltage values and outputs to an external circuit, and then judges whether the voltage value of the corresponding electrolytic cell unit 2 is out of standard. The number of the wire connection channels 26 of the voltage detection plate 25 is expanded to correspond to the voltage detection of the increased electrolytic cell units 2.

Claims

1. A superimposable electrolytic cell with voltage detection plate, comprising an electrolytic cell lower part (1), a plurality of single electrolytic cell units (2), an electrolytic cell upper part (3) and a fastening screw set (4), characterized in that: The lower part (1) of the electrolytic cell is composed of a bottom plate (16), a negative electrode plate (14) and a negative interval plate (15) arranged in order from bottom to top, and the lower part (1) of the electrolytic cell is provided with a mounting hole; the electrolytic cell unit (2) comprises a pole frame, a membrane electrode (11) and an intermediate electrode plate (13), the pole frame is provided with an inner frame (17) in the center, the two ends of the inner frame (17) are respectively provided with a flow guide structure (18) and a hydrogen gas passage (19), and the inner frame (17) is provided with a microporous titanium plate (9) and a titanium mesh (10) from top to bottom; the pole frame comprises an upper pole frame (8) and a lower pole frame (12), the upper pole frame (8) is provided with an anode sealing edge along the inner frame (17), the lower pole frame (12) is provided with a cathode sealing edge along the inner frame (17), the back of the upper pole frame (8) is attached to one side of the membrane electrode (11), the other side of the membrane electrode (11) is attached to the back of the lower pole frame (12), one side of the pole frame is attached to the intermediate electrode plate (13), the intermediate electrode plate (13) is provided with a water outlet, a water inlet and a hydrogen gas passage, the electrolytic cell unit (2) is provided with a mounting hole; the upper part (3) of the electrolytic cell is composed of an inlet and outlet water end plate (5), a positive interval plate (6) and a positive electrode plate (7) arranged in order from top to bottom, and the upper part (3) of the electrolytic cell is provided with a water inlet (24), a water outlet (22), a hydrogen outlet (23) and a mounting hole; the fastening screw group (4) passes through the mounting hole to sequentially fix and connect the lower part (1) of the electrolytic cell, the electrolytic cell unit (2) and the upper part (3) of the electrolytic cell from bottom to top.

2. The superimposable electrolytic cell with voltage detection plate according to claim 1, characterized in that: The electrolytic cell unit (2) comprises an anode chamber composed of the upper pole frame (8), the titanium mesh (10), the microporous titanium plate (9) and one side of the membrane electrode (11), and a cathode chamber composed of the lower pole frame (12), the microporous titanium plate (9), the titanium mesh (10), the cathode sealing edge and the other side of the membrane electrode (11).

3. The stackable electrolytic cell with voltage detection plate of claim 1, wherein: The water inlet and the water outlet of the intermediate electrode plate (13), the flow guide structure (18) of the pole frame and the water inlet and the water outlet of the upper part (3) of the electrolytic cell correspond in position.

4. The stackable electrolytic cell with voltage detection plate of claim 1, wherein: The hydrogen gas passage of the intermediate electrode plate (13), the hydrogen gas passage of the pole frame and the hydrogen outlet of the upper part (3) of the electrolytic cell correspond in position.

5. The superimposable electrolytic cell with voltage detection plate according to claim 1, characterized in that: The flow guide structure (18) comprises a water-repellent channel and a water passage, the water-repellent channel is a platform arranged in staggered concave-convex, the water-repellent channel is provided with the water passage on one side, and the water passage has the same width as the water-repellent channel.

6. The superimposable electrolytic cell with voltage detection plate according to claim 1, characterized in that: The negative electrode plate (14), the intermediate electrode plate (13) and the positive electrode plate (7) are provided with protrusions on one side, and the protrusions are provided with wire holes (20) therein.

7. The stackable electrolytic cell with voltage detection plate according to any one of claims 1-6, characterized in that: One side of the electrolytic cell is provided with a voltage detection plate (25), the voltage detection plate (25) is provided with a plurality of wire channels (26), the number of the wire channels (26) corresponds to the number of the electrolytic cell units (2), the wire channels (26) are provided with one end of a connecting wire, and the other end of the connecting wire is connected to the wire holes (20) of the negative electrode plate (14), the intermediate electrode plate (13) and the positive electrode plate (7).

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