Electrolytic hydrogen production machine with temperature adjusting function

Abstract

The utility model discloses an electrolytic hydrogen production machine with a temperature regulation function, which relates to the technical field of alkaline electrolytic baths and particularly comprises an electrolytic bath body, end covers are mounted at two ends of the electrolytic bath body, a first air circulation port is arranged in the middle of the electrolytic bath body, and second air circulation ports corresponding to the first air circulation port are arranged on the end covers. A mounting pipe is arranged in one second air circulation opening and connected with a draught fan through a pipeline, and the draught fan blows outside cold air into the first air circulation opening through the mounting pipe. When the cooling device is used, outside air is fed into the mounting pipe by the fan, the air in the mounting pipe is quickly blown into the first air circulation opening, and heat is blown out from the inside of the electrolytic bath body from the other second air circulation opening, so that the inside of the electrolytic bath body is cooled.

Description

Technical Field

[0001] The utility model relates to the technical field of alkaline electrolyzers, and specifically relates to an electrolytic hydrogen production machine with a temperature regulation function. Background Technique

[0002] The alkaline water electrolyzer is one of the important ways to produce hydrogen. In industry, the electrolyte of the alkaline water electrolyzer usually uses KOH solution (NaOH and NaCl solutions can also be used as electrolytes), and its working temperature is generally between 70 - 80 °C. Because heat is continuously generated during the electrolysis process, in order to prevent the temperature from being too high, heat dissipation is continuously carried out for the electrolyzer.

[0003] The traditional alkaline water electrolyzer dissipates heat through external blowing and water circulation, but this heat dissipation method has limited effects. During the long-term electrolysis process, a large amount of heat still accumulates inside the electrolyzer and cannot be dissipated. For this reason, we propose an electrolytic hydrogen production machine with a temperature regulation function, which has the function of exhausting heat from the inside to the outside to solve the above problems. Content of the Utility Model

[0004] Aiming at the deficiency that the existing electrolyzer can only dissipate heat externally with limited heat dissipation effect, the utility model provides an electrolytic hydrogen production machine with a temperature regulation function, which has the advantage of blowing air from its inside to the outside and can blow air inside the electrolyzer to cool down, solving the problems raised in the above background technique.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0006] Design an electrolytic hydrogen production machine with a temperature regulation function, including an electrolyzer cell body. End caps are installed at both ends of the electrolyzer cell body. A first air circulation port is provided in the middle of the electrolyzer cell body, and a second air circulation port corresponding to the first air circulation port is provided on the end cap;

[0007] An installation pipe is provided in one of the second air circulation ports. The installation pipe is connected to a blower through a pipeline, and the blower blows cold air from the outside into the first air circulation port through the installation pipe.

[0008] Optionally, the electrolyzer cell body is composed of several electrolysis units. Each electrolysis unit includes a backing plate. Annular water troughs are provided in the middle of both sides of the backing plate. An anode plate is provided on one side of the backing plate, an exchange diaphragm is provided on the other side of the anode plate, and a cathode plate is provided on the other side of the exchange diaphragm;

[0009] The first air circulation port is arranged in the middle of the backing plate, the anode plate, the exchange diaphragm, and the cathode plate;

[0010] The top of the backing plate is provided with symmetric first circulation ports and second circulation ports, the bottom of the backing plate is provided with a water inlet circulation port, the second circulation port is communicated with the annular water tank through a first through groove, the first circulation port is communicated with the annular water tank through a second through groove, and the second through groove and the first through groove are arranged oppositely on the surface of the backing plate; both ends of each water inlet circulation port are respectively communicated with the annular water tank through a third through groove;

[0011] Through holes corresponding to the first circulation port, the second circulation port, and the water inlet circulation port are also provided on the anode plate, the exchange diaphragm, and the cathode plate, so that when multiple electrolysis units are combined, the first circulation port is connected to the through hole, the water inlet circulation port is connected to the through hole, and the second circulation port is connected to the through hole respectively to form a tubular channel.

[0012] Optionally, a plurality of first connecting screws are penetrated through the outer edge of the annular water tank, a plurality of second connecting screws are penetrated through the inner edge of the annular water tank, both ends of the second connecting screw and the first connecting screw respectively penetrate through the end cover, and both ends of the second connecting screw and the first connecting screw are respectively fastened by nuts;

[0013] Two support legs are symmetrically provided at the bottom of each end cover, a first water outlet joint and a second water outlet joint are provided at the top side of each end cover, the first water outlet joint is communicated with the first circulation port, and the second water outlet joint is communicated with the second circulation port;

[0014] A water connection joint is provided at the bottom side of each end cover, and the water connection joint is communicated with the water inlet circulation port.

[0015] Optionally, one end of the installation pipe close to the end cover is provided with an installation flange, the end of the installation pipe is inserted into the second air circulation port, and the holes on the installation flange are respectively connected to the ends of the second connecting screws.

[0016] Optionally, reinforcing seats protruding outwards are provided at the edges of the end covers, the reinforcing seats on both sides are connected by a reinforcing rod, both ends of the reinforcing rod are placed inside the reinforcing seats, and fastening nuts are provided at both ends of the reinforcing rod.

[0017] Optionally, sealing gaskets are provided between the backing plate, the anode plate, the exchange diaphragm, and the cathode plate, and sealing gaskets are also provided between adjacent two electrolysis units.

[0018] Optionally, an insulating gasket is provided between the end cover and the tank body.

[0019] Compared with the prior art, when the utility model is in use, the fan sends the outside air into the installation pipe, the air in the installation pipe is quickly blown into the first air circulation port, and the heat is blown out from the other second air circulation port inside the electrolysis tank body, so that the inside of the electrolysis tank body is cooled. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Structural schematic diagram of the electrolysis unit of the present utility modelFigure 1 .

[0021] Figure 2 This is a schematic diagram of the structure of the electrolysis unit of the present utility model Figure 2 .

[0022] Figure 3 This is a cross-sectional view of the present utility model

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the present utility model

[0024] Figure 5 This is a side view of the present utility model

[0025] In the figure: 1, backing plate; 2, first flow port; 3, anode plate; 4, exchange diaphragm; 5, cathode plate; 6, mounting flange; 7, first through groove; 8, annular water tank; 9, first air flow port; 10, third through groove; 11, water inlet flow port; 12, second through groove; 13, second flow port; 14, through hole; 15, water connection joint; 16, end cover; 17, insulating pad; 18, first water outlet joint; 19, second water outlet joint; 20, reinforcing rod; 21, reinforcing seat; 22, second air flow port; 23, first connecting screw; 24, fan; 25, second connecting screw; 26, support leg; 27, mounting pipe Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model

[0027] Please refer to Figures 1 to 5 , the present utility model provides a technical solution: an electrolytic hydrogen production machine with a temperature adjustment function, including an electrolytic cell tank body, as Figure 3 and Figure 4 shown, the electrolytic cell tank body is composed of a plurality of electrolysis units. Each electrolysis unit includes a backing plate 1. Annular water tanks 8 are provided in the middle of both sides of the backing plate 1. An anode plate 3 is provided on one side of the backing plate 1. An exchange diaphragm 4 is provided on the other side of the anode plate 3. A cathode plate 5 is provided on the other side of the exchange diaphragm 4. In actual use, multiple dry electrolysis units can be stacked together

[0028] As Figure 1 and Figure 2As shown in the figure, symmetric first flow ports 2 and second flow ports 13 are provided at the top of the backing plate 1, and a water inlet flow port 11 is provided at the bottom of the backing plate 1. The second flow port 13 communicates with the annular water tank 8 through the first through groove 7, and the first flow port 2 communicates with the annular water tank 8 through the second through groove 12. The second through groove 12 and the first through groove 7 are arranged oppositely on the surface of the backing plate 1, that is, the second through groove 12 and the first through groove 7 are on two different planes of the backing plate 1. For example, Figure 1 and Figure 2 as shown, and both ends of each water inlet flow port 11 communicate with the annular water tank 8 through the third through groove 10 respectively;

[0029] Through holes 14 corresponding to the first flow port 2, the second flow port 13, and the water inlet flow port 11 are further provided on the anode plate 3, the exchange diaphragm 4, and the cathode plate 5 respectively. When multiple electrolysis units are combined, the first flow port 2, the water inlet flow port 11, and the second flow port 13 are respectively connected to the through holes 14 to form a tubular channel for water flow. The middle parts of the backing plate 1, the anode plate 3, the exchange diaphragm 4, and the cathode plate 5 are all provided with first air flow ports 9, and the first air flow ports 9 form an exhaust channel after combination.

[0030] For example, Figure 4 as shown, end caps 16 are installed at both ends of the electrolytic cell tank body. Two support legs 26 are symmetrically provided at the bottom of each end cap 16. The support legs 26 can be fastened to the base or the ground by bolts to fix the electrolytic cell. For example, Figure 3 as shown, a structure for strengthening the electrolytic cell tank body is further provided on the end cap. The strengthening structure includes multiple first connecting screws 23 penetrating through the outer edge of the annular water tank 8, and multiple second connecting screws 25 penetrating through the inner edge of the annular water tank 8. Both ends of the second connecting screw 25 and the first connecting screw 23 penetrate through the end cap 16 respectively, and both ends of the second connecting screw 25 and the first connecting screw 23 are fastened by nuts. After being locked by the nuts, the connection between multiple electrolytic cell tank bodies is made closer to prevent water leakage due to gaps between the electrolytic cell tank bodies;

[0031] A first water outlet joint 18 and a second water outlet joint 19 are provided on the top side of each end cap 16. The first water outlet joint 18 communicates with the first flow port 2, and the second water outlet joint 19 communicates with the second flow port 13. A water connection joint 15 is provided at the bottom side of each end cap 16, and the water connection joint 15 communicates with the water inlet flow port 11;

[0032] The specific working mode of the electrolytic cell tank body is that the water inlet flow port 11 is connected to a water supply device through a pipeline, and external water is injected into the water inlet flow port 11 with a certain pressure. For example, Figure 3 as shown, water flows in the water inlet flow port 11 and flows into the annular water tanks 8 on both sides of the backing plate 1 through each third through groove 10 (the specific water flow direction is asFigure 3 As shown by the arrows, anode plates 3, exchange diaphragms 4, and cathode plates 5 are provided between two adjacent annular water tanks 8. Therefore, the water flowing through the annular water tank 8 will come into contact with the anode plate 3 and the cathode plate 5. Oxygen will be generated on the anode plate 3, and hydrogen will be generated on the cathode plate 5.

[0033] Subsequently, as the water continues to flow, hydrogen and water will enter the first through groove 7 and then into the second flow port 13. Finally, hydrogen and water will flow out from the second water outlet joint 19, while oxygen and water will flow from the second through groove 12 to the first flow port 2, and finally oxygen and water will be discharged from the first water outlet joint 18. Connect the first water outlet joint 18 and the second water outlet joint 19 to the gas-liquid separator through pipes respectively, and hydrogen and oxygen can be collected separately.

[0034] As Figure 4 shown, the most important part of this solution is that a second air flow port 22 corresponding to the first air flow port 9 is provided on the end cover 16. An installation pipe 27 is provided in one of the second air flow ports 22. The installation pipe 27 is connected to the fan 24 through a pipe; an installation flange 6 is provided at one end of the installation pipe 27 close to the end cover 16. The end of the installation pipe 27 is inserted into the second air flow port 22, and the holes on the installation flange 6 are all connected to the ends of the second connecting screws 25. In this way, the installation pipe 27 can be fixed on the end cover 16, and the installation flange 6 and the second connecting screws 25 are fastened by nuts;

[0035] Specifically, the fan 24 blows the outside cold air into the first air flow port 9 through the installation pipe 27. The rapidly flowing air blows the heat inside the electrolytic cell to the outside, thereby injecting cold air into the electrolytic cell to cool the entire electrolytic cell and realizing the regulation of the temperature of the electrolytic cell.

[0036] Furthermore, reinforcing seats 21 protruding outward are provided at the edges of the end cover 16. The reinforcing seats 21 on both sides are connected by a reinforcing rod 20. Both ends of the reinforcing rod 20 are placed inside the reinforcing seats 21, and fastening nuts are provided at both ends of the reinforcing rod 20. Through the support of multiple reinforcing rods 20, it is possible to prevent the electrolytic cell tank body with a relatively large length from sinking and bending, and endow the electrolytic cell tank body with better anti-bending ability.

[0037] Furthermore, sealing gaskets are provided between the backing plate 1, the anode plate 3, the exchange diaphragm 4, and the cathode plate 5. Sealing gaskets are also provided between two adjacent electrolysis units to achieve better sealing performance. An insulating gasket 17 is provided between the end cover 16 and the tank body to prevent the end cover 16 from being charged.

[0038] In summary, when the utility model is in use, the electrolysis unit combinations are assembled and then installed between the end caps 16. The inner edges of each electrolysis unit are supported by multiple second connecting screws 25, and the outer edges are supported by the first connecting screws 23. Moreover, the end of each connecting screw is fastened by a nut, enabling the electrolytic cell body to have better sealing performance and support effect;

[0039] After the electrolytic cell body works, its internal temperature is too high. The fan 24 sends the outside air into the installation pipe 27. The air in the installation pipe 27 quickly blows into the first air circulation port 9 and blows out the heat from the electrolytic cell body through the other second air circulation port 22, cooling the inside of the electrolytic cell body.

[0040] Based on the above embodiments, further optimization can be made. During actual operation, a temperature sensor can be installed in the first air circulation port 9. The temperature sensor is connected to the controller through a wire, and the controller and the fan are connected through a wire. In this way, when the temperature in the electrolytic cell body rises to a preset value, the controller starts the fan to blow and dissipate heat, thus achieving the function of cooling.

[0041] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, 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. Therefore, it should not be construed as a limitation to the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. Moreover, the terms "include", "comprise" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An electrolytic hydrogen generator with a temperature regulating function, comprising an electrolytic cell body, with end covers (16) installed at both ends of the electrolytic cell body, characterized in that: A first air circulation opening (9) is provided in the middle of the electrolytic cell body, and a second air circulation opening (22) corresponding to the first air circulation opening (9) is provided on the end cover (16); A mounting pipe (27) is provided in one of the second air circulation ports (22); the mounting pipe (27) is connected to the fan (24) via a pipeline; the fan (24) blows external cold air into the first air circulation port (9) through the mounting pipe (27).

2. The electrolytic hydrogen generator with temperature regulation function according to claim 1, characterized in that: The electrolytic cell body comprises a plurality of electrolytic units, each of which comprises a backing plate (1), an annular water tank (8) is provided in the middle of both sides of the backing plate (1), an anode plate (3) is provided on one side of the backing plate (1), an exchange membrane (4) is provided on the other side of the anode plate (3), and a cathode plate (5) is provided on the other side of the exchange membrane (4); The first air circulation port (9) is arranged in the middle of the backing plate (1), the anode plate (3), the exchange membrane (4), and the cathode plate (5); The top of the pad (1) is provided with a symmetrical first circulation port (2) and a second circulation port (13); the bottom of the pad (1) is provided with a water inlet circulation port (11); the second circulation port (13) is connected to the annular water groove (8) through a first through groove (7); the first circulation port (2) is connected to the annular water groove (8) through a second through groove (12); the second through groove (12) and the first through groove (7) are arranged opposite to each other on the surface of the pad (1); both ends of each water inlet circulation port (11) are connected to the annular water groove (8) through a third through groove (10); Through holes (14) corresponding to the first flow opening (2), the second flow opening (13) and the water inlet flow opening (11) are also provided on the anode plate (3), the exchange membrane (4) and the cathode plate (5), so that when a plurality of electrolytic units are combined, the first flow opening (2) and the through hole (14), the water inlet flow opening (11) and the through hole (14), and the second flow opening (13) and the through hole (14) are respectively connected to form a tubular channel.

3. The electrolytic hydrogen generator with temperature regulation function according to claim 2, characterized in that: A plurality of first connecting screws (23) are provided through the outer edge of the annular water trough (8), and a plurality of second connecting screws (25) are provided through the inner edge of the annular water trough (8), and both ends of the second connecting screws (25) and the first connecting screws (23) are respectively passed through the end cover (16), and both ends of the second connecting screws (25) and the first connecting screws (23) are respectively fastened by nuts; Two supporting legs (26) are symmetrically provided at the bottom of each end cover (16), and a first water outlet joint (18) and a second water outlet joint (19) are provided at the top side of each end cover (16), the first water outlet joint (18) being in communication with the first circulation port (2), and the second water outlet joint (19) being in communication with the second circulation port (13); A water connection joint (15) is provided at the bottom of the side surface of each end cover (16), and the water connection joint (15) is in communication with the water inlet flow port (11).

4. The electrolytic hydrogen generator with temperature regulation function according to claim 3, characterized in that: A mounting flange (6) is provided at one end of the mounting tube (27) close to the end cover (16), the end of the mounting tube (27) is inserted into the second air flow port (22), and the holes on the mounting flange (6) are all connected to the ends of the second connecting screw rod (25).

5. The electrolytic hydrogen generator with temperature regulation function according to claim 4, characterized in that: The edges of the end covers (16) are each provided with a reinforcement seat (21) extending outward, the reinforcement seats (21) on both sides are connected via a reinforcement rod (20), both ends of the reinforcement rod (20) are placed in the reinforcement seat (21), and both ends of the reinforcement rod (20) are provided with a fastening nut.

6. The electrolytic hydrogen generator with temperature regulation function according to claim 2, characterized in that: Sealing gaskets are provided between the backing plate (1), the anode plate (3), the exchange membrane (4), and the cathode plate (5), and sealing gaskets are also provided between two adjacent electrolysis units.

7. The electrolytic hydrogen generator with temperature regulation function according to claim 1 or 5, characterized in that: An insulating pad (17) is provided between the end cover (16) and the slot body.

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