Hydrogen-oxygen separation equipment for hydrogen production
By using the design of electrolyte circulation and bellows combined with the heat dissipation module in the hydrogen-oxygen separation equipment for hydrogen production, the problem of electrolyte temperature rise is solved, efficient heat dissipation and low-cost hydrogen production process are achieved, and the stability of the equipment is improved. and energy utilization.
Patent Information
- Application Number
- CN202421053108.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-15
AI Technical Summary
The heat generated by existing hydrogen-oxygen separation equipment for hydrogen production is difficult to effectively dissipate heat during the electrolysis process, resulting in a rise in the temperature of the electrolyte, which may cause oxidation and corrosion of the equipment. The traditional heat dissipation system is high in cost and low energy utilization.
A hydrogen-oxygen separation device including an electrolytic cell and a rectifier cabinet was designed. By setting up a partition inside the electrolytic cell to form oxygen and hydrogen channels, and a cooling pipe and a bellows were built into the rectifier cabinet, which was circulated by electrolyte for heat dissipation, combined with a heat dissipation module. and the deflector form a continuous "V" type heat dissipation channel to improve heat dissipation efficiency.
The uniform cooling of the electrolyte is achieved, cost reduction, energy utilization is improved, and the stable operation of the hydrogen production process and the purity of the hydrogen gas are ensured.
Smart Images
Figure CN222226590U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of hydrogen production, and particularly relates to hydrogen-oxygen separation equipment for hydrogen production. Background Art
[0002] Hydrogen-oxygen separation equipment for hydrogen production is a device specifically used to decompose water into hydrogen and oxygen. Its core working principle is based on the principle of water electrolysis. This device usually consists of two electrodes and an electrolyte. When the electrodes are powered, they attract ions in water molecules, decompose them into hydrogen ions and oxygen ions, and then collect these ions separately. Hydrogen ions react with the electrode at the negative electrode to form hydrogen, while oxygen ions react with the electrode at the positive electrode to form oxygen;
[0003] Heat is generated during the hydrogen production process. If it is not discharged in time, it will affect the operation of the equipment. The most important thing is to ensure the temperature of the electrolyte and the rectifier cabinet. The rise in electrolyte temperature may lead to increased oxidation and corrosion of the electrolysis equipment, and even cause production safety accidents. It is necessary to cool it down to ensure the stable operation of the hydrogen production process. The rectifier cabinet, as a heat-generating component, also needs to be cooled to ensure the normal operation of the equipment and the purity of the hydrogen.
[0004] The above two types of heat dissipation are generally traditionally performed through independent heat dissipation systems, and the heat dissipation methods include water cooling and air cooling. Since an independent heat dissipation system is required, the cost is high and energy cannot be fully utilized.
[0005] In order to solve the above problems, the present application proposes a hydrogen-oxygen separation device for hydrogen production. Utility Model Content
[0006] The purpose of the utility model is to provide a hydrogen-oxygen separation device for hydrogen production, which solves the problems raised in the above-mentioned background technology.
[0007] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:
[0008] The utility model discloses a hydrogen-oxygen separation device for hydrogen production, comprising an electrolyzer and a rectifier cabinet, wherein an oxygen channel, a hydrogen channel and a filling port are respectively formed in the electrolyzer through a partition, a cooling pipeline is arranged inside the rectifier cabinet, and a cooling pipe inlet and a cooling pipe outlet are respectively arranged at both ends of the pipeline, and a first bellows and a second bellows are also included, a heat dissipation module is arranged on the same side of the first bellows and the second bellows, a heat dissipation channel is also arranged inside the first bellows and the second bellows, a flow divider is arranged at both ends of the heat dissipation channel, the heat dissipation channel is a continuous "V"-shaped structure, the heat dissipation channel is arranged in a plurality of ways, the heat dissipation channel is also connected to a water outlet pipe and a cooling pipe inlet, and a cooling pipe outlet and a reflux pipe respectively, a water outlet pipe is arranged at the bottom of one side of the electrolyzer, and two reflux pipes are arranged at the upper end of the same side.
[0009] Furthermore, there are two heat dissipation channels arranged in parallel, the two heat dissipation channels are respectively connected to the two ports on one side of the diverter, and a heat dissipation channel is formed between the two heat dissipation channels.
[0010] Furthermore, the heat dissipation channel is fixedly provided with fins distributed in parallel on the outside, and the first and second bellows are fixedly provided with guide plates that match the local contour of the heat dissipation channel, and a guide angle is formed at one end of the guide plate close to the heat dissipation module.
[0011] Furthermore, an air flow channel for heat dissipation is formed between the guide plate and the heat dissipation channel.
[0012] Furthermore, the reflux pipe extends to the other side in the electrolytic cell, and the port is diagonally distributed with respect to the inlet of the water outlet pipe.
[0013] Furthermore, a group of heat dissipation channels are provided in the No. 1 wind box, and the No. 2 wind box is provided with a heat dissipation channel whose number is greater than that inside the No. 1 wind box. The cooling pipe outlet is connected to a shunt pipe at one end away from the rectifier cabinet, and the shunt pipe is simultaneously connected to the shunts at one end of several heat dissipation channels.
[0014] Furthermore, the side surface of the heat dissipation channel faces the heat dissipation module.
[0015] The utility model has the following beneficial effects:
[0016] The utility model utilizes the electrolyte inside the electrolytic cell to cool the rectifier cabinet, and does not need to use external cooling water circulation, which reduces the cost to a high degree. In addition, the circulating electrolyte can be fully mixed inside the electrolytic cell to ensure the uniformity of the electrolyte temperature.
[0017] The utility model arranges heat dissipation channels and fins before the electrolyte enters the rectifier cabinet and before it circulates back to the electrolytic cell, and at the same time arranges a heat dissipation module for heat dissipation. The reaction process of the electrolyte in the electrolytic cell will generate heat. The electrolyte is cooled by the heat dissipation component inside the No. 1 bellows during entering the rectifier cabinet, and then the cooled coolant enters the rectifier cabinet to dissipate heat. The temperature of the electrolyte is increased after passing through the rectifier cabinet, and the electrolyte is divided into two paths and passes through the heat dissipation module. At this time, the upper heat dissipation module cools the electrolyte passing through, and finally the cooled electrolyte returns to the electrolytic cell, thereby improving energy utilization and reducing costs.
[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0020] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;
[0021] Figure 2 for Figure 1 Schematic diagram of the structure from above;
[0022] Figure 3 for Figure 1 A schematic diagram of the structure viewed from the rear;
[0023] Figure 4 This is a schematic diagram of the partial decomposition of the internal structure of the stroke box of the utility model;
[0024] Figure 5 It is a half-section structural schematic diagram of the heat dissipation channel and its connecting parts in the utility model;
[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0026] In the figure: 1. electrolyzer; 2. oxygen channel; 3. hydrogen channel; 4. filling port; 5. rectifier cabinet; 6. cooling pipe inlet; 7. cooling pipe outlet; 8. No. 1 bellows; 9. No. 2 bellows; 10. heat dissipation module; 11. heat dissipation channel; 12. diverter; 13. heat dissipation flow channel; 14. fin; 15. guide plate; 16. guide angle; 17. water outlet pipe; 18. reflux pipe; 19. diverter pipe. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
[0029] See also Figure 1-5 As shown, the utility model is a hydrogen-oxygen separation device for hydrogen production, including an electrolyzer 1 and a rectifier cabinet 5, wherein an oxygen channel 2, a hydrogen channel 3 and a filling port 4 are respectively formed in the electrolyzer 1 through a partition, a cooling pipe is arranged inside the rectifier cabinet 5, and a cooling pipe inlet 6 and a cooling pipe outlet 7 are arranged at both ends of the pipe, and further comprising a No. 1 wind box 8 and a No. 2 wind box 9, a heat dissipation module 10 is arranged on the same side of the No. 1 wind box 8 and the No. 2 wind box 9, a heat dissipation channel 11 is also arranged inside the No. 1 wind box 8 and the No. 2 wind box 9, and a flow divider 12 is arranged at both ends of the heat dissipation channel 11, The heat dissipation channel 11 is a continuous "V"-shaped structure. The "V" shape can increase the channel length and the contact area between the channel and the outside within a certain distance, providing better conditions for heat dissipation. The heat dissipation channel 11 is set in multiple ways. The heat dissipation channel 11 is also connected to the water outlet pipe 17 and the cooling pipe inlet 6 and the cooling pipe outlet 7 and the reflux pipe 18 respectively. A water outlet pipe 17 is set at the bottom of one side of the electrolytic cell 1, and two reflux pipes 18 are set at the upper end of the same side. A circulating pump can be set at any position in the circulating channel interconnected between the electrolytic cell 1, the No. 1 bellows 8, the rectifier cabinet 5, and the No. 2 bellows 9.
[0030] Among them, there are two heat dissipation channels 11 arranged in parallel, the two heat dissipation channels 11 are respectively connected to the two ports on one side of the diverter 12, and a heat dissipation channel 13 is formed between the two heat dissipation channels 11. In this embodiment, the heat dissipation channel 11 is set to increase the contact area between the electrolyte and the heat dissipation channel 11, thereby ensuring the heat dissipation effect.
[0031] Among them, the outside of the heat dissipation channel 11 is also fixed with fins 14 distributed in parallel, and the inside of the No. 1 bellows 8 and the No. 2 bellows 9 is fixed with a guide plate 15 that matches the local contour of the heat dissipation channel 11. The guide plate 15 is formed with a guide angle 16 at one end close to the heat dissipation module 10. In this embodiment, the fins 14 increase the absorption of heat and also accelerate the dissipation of heat.
[0032] An air flow channel for heat dissipation is formed between the guide plate 15 and the heat dissipation channel 11. In this embodiment, the guide plate 15 promotes the air flow to flow along the outside of the heat dissipation channel 11, so that the air flow is fully contacted with the heat dissipation channel 11, thereby achieving a better heat dissipation effect.
[0033] Among them, the reflux pipe 18 extends to the other side in the electrolytic cell 1, and the port is diagonally distributed with the inlet of the water outlet pipe 17. In this embodiment, the diagonal distribution plays a role in mixing and stirring the electrolyzed water inside the electrolytic cell 1, thereby ensuring the electrolysis effect.
[0034] Among them, a group of heat dissipation channels 11 are provided in the No. 1 bellows 8, and the No. 2 bellows 9 is provided with heat dissipation channels 11 greater in number than those inside the No. 1 bellows 8. The cooling pipe outlet 7 is connected to a shunt pipe 19 at one end away from the rectifier cabinet 5. The shunt pipe 19 is simultaneously connected to the shunts 12 at one end of several heat dissipation channels 11. In this embodiment, multiple heat dissipation channels 11 are arranged inside the No. 2 bellows 9 to further disperse the refluxed electrolyte, and then pass through the heat dissipation channels 11 to enhance the heat dissipation effect of the electrolyte, thereby adjusting the temperature of the electrolyte refluxed to the electrolytic cell 1.
[0035] Among them, the side of the heat dissipation channel 11 is facing the heat dissipation module 10. In this embodiment, the heat dissipation module 10 is blowing against the side of the heat dissipation channel 11. This position distribution can make the airflow blown out of the heat dissipation module 10 fully contact with the heat dissipation channel 11 and the surface of the fin 14, thereby ensuring the heat dissipation effect. In order to further improve the heat dissipation effect, a refrigeration module can also be set inside the heat dissipation module 10.
[0036] It can be understood that, first, the electrolyte is used to dissipate heat inside the rectifier cabinet 5 to improve the utilization rate of the electrolyte. Secondly, heat dissipation bellows are respectively arranged on the electrolyte channels to achieve cooling of the electrolyte in a circulating state, thereby ensuring the temperature of the electrolyte inside the electrolytic cell 1 and the heat dissipation effect inside the rectifier cabinet 5, which has the advantages of low cost and high utilization rate.
[0037] A specific application of this embodiment is: the water outlet pipe 17 is connected to the diverter 12 at one end inside the first wind box 8, and the diverter 12 at the other end is connected to the cooling pipe inlet 6. A cooling pipeline is arranged inside the rectifier cabinet 5, and a water pump is arranged on the cooling pipeline to increase the circulation power of the electrolyte. The two ends of the pipeline are respectively connected to the cooling pipe inlet 6 and the cooling pipe outlet 7. The cooling pipe outlet 7 is connected to the two diverters 12 inside the second wind box 9 through the diverter pipe 19, and the other end of the diverter 12 is connected to the return pipe 18;
[0038] Electrolyte is added into the electrolytic cell 1 through the filling port 4. Electrode plates respectively located in the oxygen channel 2 and the hydrogen channel 3 are installed inside the electrolytic cell 1. The plates are energized to generate hydrogen and oxygen, which are collected through the oxygen channel 2 and the hydrogen channel 3. The water temperature will rise during the electrolysis process, and the water pump used for circulation will work. The water pump drives the electrolyte in the electrolytic cell 1 to enter the diverter 12 through the outlet pipe 17. The diverter 12 divides the electrolyzed water evenly and enters the heat dissipation channel 11. The heat of the electrolyzed water will be absorbed by the heat dissipation channel 11 and the fins 14. The heat dissipation module 10 is in working state during this process. The airflow generated by the heat dissipation module 10 will transfer the heat absorbed by the heat dissipation channel 11 and the fins 14 from the end of the first bellows 8. The electrolyzed water after being cooled enters the cooling pipe inlet 6 through the diverter 12, and enters the heat dissipation pipe inside the rectifier cabinet 5 through the cooling pipe inlet 6. At this time, the electrolyte absorbs the heat generated inside the rectifier cabinet 5, and then the electrolyzed water flows out through the cooling pipe outlet 7, and branches through the diverter 19. The electrolyzed water branched by the diverter 19 enters the diverter 12 and is branched again. The electrolyzed water enters the heat dissipation channel 11, and the heat dissipation channel 11 and the fins 14 absorb the heat of the electrolyzed water. The heat dissipation module 10 in the working state takes away the heat absorbed by the heat dissipation channel 11 and the fins 14 from the end of the No. 2 bellows 9. Finally, the electrolyzed water after being cooled returns to the electrolytic cell 1 through the diverter 12 and the reflux pipe 18.
[0039] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0040] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A hydrogen-oxygen separation device for hydrogen production, comprising an electrolyzer (1) and a rectifier cabinet (5), wherein the electrolyzer (1) is provided with an oxygen channel (2), a hydrogen channel (3) and a filling port (4) through a partition, and a cooling pipe is provided inside the rectifier cabinet (5), and a cooling pipe inlet (6) and a cooling pipe outlet (7) are provided at both ends of the pipe, characterized in that: The electrolytic cell (1) further comprises a first bellows (8) and a second bellows (9), wherein a heat dissipation module (10) is provided on the same side of the first bellows (8) and the second bellows (9), and a heat dissipation channel (11) is provided inside the first bellows (8) and the second bellows (9), and a flow divider (12) is provided at both ends of the heat dissipation channel (11), and the heat dissipation channel (11) is a continuous "V"-shaped structure, and the heat dissipation channel (11) is provided in multiple configurations, and the heat dissipation channel (11) is also connected to a water outlet pipe (17) and a cooling pipe inlet (6) as well as a cooling pipe outlet (7) and a return pipe (18), respectively; a water outlet pipe (17) is provided at the bottom of one side of the electrolytic cell (1), and two return pipes (18) are provided at the upper end of the same side.
2. A hydrogen-oxygen separation device for hydrogen production according to claim 1, characterized in that: The two heat dissipation channels (11) are arranged in parallel, the two heat dissipation channels (11) are respectively connected to two ports on one side of the diverter (12), and a heat dissipation flow channel (13) is formed between the two heat dissipation channels (11).
3. The hydrogen-oxygen separation device for hydrogen production according to claim 1, characterized in that: The heat dissipation channel (11) is also fixedly provided with fins (14) distributed in parallel on the outside, and the first bellows (8) and the second bellows (9) are fixedly provided with guide plates (15) that match the local contour of the heat dissipation channel (11) on the inside, and the guide plates (15) are formed with guide angles (16) at one end close to the heat dissipation module (10).
4. A hydrogen-oxygen separation device for hydrogen production according to claim 3, characterized in that: An air flow channel for heat dissipation is formed between the guide plate (15) and the heat dissipation channel (11).
5. The hydrogen-oxygen separation device for hydrogen production according to claim 1, characterized in that: The reflux pipe (18) extends to the other side of the electrolytic cell (1), and its port is diagonally distributed with respect to the inlet of the water outlet pipe (17).
6. The hydrogen-oxygen separation device for hydrogen production according to claim 1, characterized in that: The first wind box (8) is provided with a group of heat dissipation channels (11), the second wind box (9) is provided with a heat dissipation channel (11) greater in number than the heat dissipation channels inside the first wind box (8), and the cooling pipe outlet (7) is connected to a shunt pipe (19) at one end away from the rectifier cabinet (5), and the shunt pipe (19) is simultaneously connected to the shunts (12) at one end of several heat dissipation channels (11).
7. A hydrogen-oxygen separation device for hydrogen production according to claim 6, characterized in that: The side surface of the heat dissipation channel (11) faces the heat dissipation module (10).