Hydrogen production system with multiple electrolytic baths
By using a multi-electrolyzer design and sensor monitoring, the diversion and safety issues of single-electrolyzer hydrogen production systems have been resolved, achieving efficient and safe multi-purpose hydrogen supply and improving the system's capacity and flexibility.
Patent Information
- Application Number
- CN202423158730.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing single-electrolyzer hydrogen production systems cannot effectively divert and independently control hydrogen, resulting in high costs, wasted capacity, large footprint, and insufficient safety when multiple hydrogen-using ends are used.
The design employs multiple electrolyzers, each equipped with two hydrogen outlets and a circulation unit. The hydrogen outlets are equipped with hydrogen pressure sensors and electromagnetic safety valves, as well as water supply units, hydrogen production tanks, liquid level and temperature sensors, enabling independent control and safety monitoring.
It improves safety and flexibility, expands production capacity, ensures the continuity and reliability of hydrogen supply, reduces equipment footprint and cost, and enhances system redundancy and automation.
Smart Images
Figure CN223852798U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hydrogen production technical field especially is related to a kind of multi-electrolytic cell hydrogen production system. BACKGROUND
[0002] Automatic hydrogen production and filling equipment, in short, is a system integrated with advanced technology, and its main function is to automatically decompose water molecules into hydrogen and oxygen, and further process for subsequent use. This kind of equipment usually relies on electrolysis method to realize the electrolysis of water, that is, to convert electrical energy into chemical energy, thereby generating hydrogen and oxygen. The application prospect of automatic hydrogen production and filling equipment is particularly broad. Hydrogen, as a clean and harmless energy source, is considered as one of the important substitutes for future energy. In addition, in the medical field, automatic hydrogen production and filling equipment also has important applications. In addition to the medical and energy fields, automatic hydrogen production and filling equipment also has wide application potential in the fields of aviation, automobiles, buildings, etc.
[0003] Ordinary hydrogen production system has only one electrolytic cell, and for multiple hydrogen-using ends, a single electrolytic cell cannot effectively distribute and independently control the hydrogen output, and the hydrogen consumption of a single hydrogen-using end is relatively small. If multiple devices are used to produce hydrogen, it will increase a lot of cost and waste of production capacity, and the occupied area is also relatively large. SUMMARY
[0004] To solve the above problems, the utility model adopts multiple electrolytic cell design, each electrolytic cell is equipped with two hydrogen outlets and a circulation unit, and a hydrogen outlet pressure sensor and an electromagnetic safety valve are arranged on the hydrogen outlet. The safety is improved, and the multiple electrolytic cell hydrogen production system solves the problem of multiple hydrogen use required by users.
[0005] The technical scheme adopted by the utility model is: a multiple electrolytic cell hydrogen production system, comprising a water supply unit, a hydrogen production water tank and multiple electrolytic cells, the water supply unit is connected with the hydrogen production water tank, the hydrogen production water tank is provided with a tapping pipeline, the hydrogen production water tank is connected with the multiple electrolytic cells through the tapping pipeline, each electrolytic cell is provided with two hydrogen outlet units and a circulation unit, and the electrolytic cell is connected with the hydrogen production water tank through the circulation unit; the hydrogen outlet unit comprises a hydrogen outlet, a hydrogen outlet pressure sensor and an electromagnetic safety valve are arranged on the hydrogen outlet, and the hydrogen outlet pressure sensor is used to detect the hydrogen pressure of the hydrogen outlet.
[0006] Further improvement of the above scheme is that the water supply unit is a pure water machine, the water supply unit is connected with the hydrogen production water tank through a pipeline, and an electromagnetic valve is arranged on the pipeline.
[0007] Further improvement of the above scheme is that the hydrogen production water tank is provided with a liquid level sensor and a temperature sensor, the liquid level sensor is used to sense the water capacity in the hydrogen production water tank, and the temperature sensor is used to sense the temperature in the hydrogen production water tank.
[0008] Further improvement of the above scheme is that the hydrogen production water tank is provided with an oxygen exhaust port, and an oxygen exhaust fan is arranged on the oxygen exhaust port.
[0009] Further improvement of the above scheme is that the hydrogen production water tank is provided with a water circulation module for water circulation in the hydrogen production water tank.
[0010] Further improvement of the above scheme is that a plurality of water pumps are arranged on the branch pipeline, and the plurality of water pumps are respectively connected to the plurality of electrolytic cells to deliver water in the hydrogen production water tank to the electrolytic cells.
[0011] Further improvement of the above scheme is that one end of the branch pipeline is connected with a drain pipe.
[0012] Further improvement of the above scheme is that a check valve is arranged on the hydrogen outlet.
[0013] Further improvement of the above scheme is that the electrolytic cell is provided with a flow detection element.
[0014] Further improvement of the above scheme is that the hydrogen outlet is connected with an emptying pipeline, and the emptying pipeline is provided with a one-way valve and a safety valve.
[0015] The utility model has the beneficial effects that:
[0016] Compared with the existing hydrogen production system, the utility model adopts the design of multiple electrolytic cells, each electrolytic cell is independently provided with two hydrogen outlets and a circulation unit, a hydrogen outlet pressure sensor and an electromagnetic safety valve are arranged on the hydrogen outlet. The safety is improved, and the problem that the user needs to use hydrogen gas in multiple ways is solved. During use, when the equipment needs hydrogen gas, one or more of the multiple hydrogen outlets can be selected for gas supply. The hydrogen outlet pressure sensor is independently arranged on each hydrogen outlet to detect the pressure condition of the hydrogen outlet, so as to prevent the pressure from being too high due to blockage. The electromagnetic safety valve is configured to open for exhaust when the pressure is too high, thereby improving the safety.
[0017] The utility model discloses a plurality of electrolytic cell is designed, and the production capacity scale of electrolytic water hydrogen production is effectively enlarged. Every electrolytic cell is equipped with two hydrogen outlet units, and this not only improves the hydrogen production of unit time, but also enhances the flexibility and redundancy of system, guarantees the continuous stable operation of system, and ensures the continuity and reliability of hydrogen supply even when part of electrolytic cell maintenance or failure. Every hydrogen outlet unit is configured with hydrogen outlet pressure sensor, and can monitor the pressure change of hydrogen outlet in real time, provides key data support for system operation. Not only help to optimize electrolytic condition and improve hydrogen purity, more importantly, it constitutes the basis of hydrogen leakage early warning system, and once detects abnormal pressure rise, can immediately trigger electromagnetic safety valve, effectively prevents potential safety risk, and guarantees the safety of production environment and personnel. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is the connection schematic drawing of the multiple electrolytic cell hydrogen production system of the utility model;
[0019] Figure 2 It is Figure 1 It is the connection schematic drawing of the water supply unit of the multiple electrolytic cell hydrogen production system in the utility model;
[0020] Figure 3 It is Figure 1 It is the schematic diagram of the tapping pipeline and electrolytic cell of the multiple electrolytic cell hydrogen production system in the utility model;
[0021] Figure 4 It is Figure 1 It is the schematic diagram of the electrolytic cell of the multiple electrolytic cell hydrogen production system in the utility model.
[0022] The utility model discloses a plurality of electrolytic cell is designed, and the production capacity scale of electrolytic water hydrogen production is effectively enlarged. Every electrolytic cell is equipped with two hydrogen outlet units, and this not only improves the hydrogen production of unit time, but also enhances the flexibility and redundancy of system, guarantees the continuous stable operation of system, and ensures the continuity and reliability of hydrogen supply even when part of electrolytic cell maintenance or failure. Every hydrogen outlet unit is configured with hydrogen outlet pressure sensor, and can monitor the pressure change of hydrogen outlet in real time, provides key data support for system operation. Not only help to optimize electrolytic condition and improve hydrogen purity, more importantly, it constitutes the basis of hydrogen leakage early warning system, and once detects abnormal pressure rise, can immediately trigger electromagnetic safety valve, effectively prevents potential safety risk, and guarantees the safety of production environment and personnel. DETAILED DESCRIPTION
[0023] In order to facilitate understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the utility model are given in the drawings. However, the utility model can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive.
[0024] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can also be present.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an" and "the" include plural referents unless the context clearly dictates otherwise. Figures 1-4 As shown in the embodiment of the present application, a multi-electrolytic cell hydrogen production system is involved, which comprises a water supply unit 1, a hydrogen production water tank 2 and multiple electrolytic cells 3. The water supply unit 1 is connected to the hydrogen production water tank 2. The hydrogen production water tank 2 is provided with a tapping pipeline 4. The hydrogen production water tank 2 is connected to the multiple electrolytic cells 3 through the tapping pipeline 4. Each electrolytic cell 3 is provided with two hydrogen outlet units 31 and a circulation unit 32. The electrolytic cell 3 is connected to the hydrogen production water tank 2 through the circulation unit 32. The hydrogen outlet unit 31 comprises a hydrogen outlet 311. The hydrogen outlet 311 is provided with a hydrogen outlet pressure sensor 312 and an electromagnetic safety valve 313. The hydrogen outlet pressure sensor 312 is used to detect the hydrogen pressure of the hydrogen outlet 311. In this embodiment, multiple electrolytic cells 3 are designed. Each electrolytic cell 3 is independently provided with two hydrogen outlets 311 and a circulation unit 32. The hydrogen outlet 311 is provided with a hydrogen outlet pressure sensor 312 and an electromagnetic safety valve 313. The safety is improved. The problem that the user needs to use hydrogen in multiple ways is solved. During use, when the equipment needs hydrogen, one or more of the multiple hydrogen outlets 311 can be selected for gas supply. Each hydrogen outlet 311 is independently provided with a hydrogen outlet pressure sensor 312 to detect the pressure condition of the hydrogen outlet 311 to prevent pressure from being too high due to blockage. The electromagnetic safety valve 313 is configured to open for exhaust when the pressure is too high, thereby improving the safety.
[0026] The present application effectively expands the production capacity of electrolytic water hydrogen production by designing multiple electrolytic cells 3. Each electrolytic cell 3 is provided with two hydrogen outlet units 31, which not only improves the hydrogen production per unit time, but also enhances the flexibility and redundancy of the system. Even when part of the electrolytic cells 3 are maintained or malfunction, the system can still operate continuously and stably to ensure the continuity and reliability of hydrogen supply. Each hydrogen outlet unit 31 is provided with a hydrogen outlet pressure sensor 312, which can monitor the pressure change of the hydrogen outlet in real time and provide key data support for system operation. It not only helps to optimize the electrolysis conditions and improve the purity of hydrogen, but more importantly, it forms the basis of the hydrogen leakage early warning system. Once an abnormal pressure rise is detected, the electromagnetic safety valve 313 can be triggered immediately to effectively prevent potential safety risks and ensure the safety of the production environment and personnel.
[0027] The water supply unit 1 is a pure water machine connected to the hydrogen production water tank 2 through a pipeline with an electromagnetic valve. In this embodiment, the pure water machine as the water supply unit 1 can effectively remove impurities and ions in water, providing high-quality pure water for the electrolytic cell 3. This is crucial for improving electrolytic efficiency and prolonging the service life of the electrolytic cell 3.
[0028] The hydrogen production water tank 2 is provided with a liquid level sensor 21 for sensing the water capacity in the hydrogen production water tank 2 and a temperature sensor 22 for sensing the temperature in the hydrogen production water tank 2. In this embodiment, the liquid level sensor 21 can monitor the water capacity in the hydrogen production water tank 2 in real time and accurately. This function is crucial for a multi-electrolytic cell 3 hydrogen production system, as water is the raw material in the electrolysis process, and its stability of supply directly affects the yield and quality of hydrogen. Through the monitoring of the liquid level sensor 21, it can ensure that the water quantity in the water tank always remains within the appropriate range, thereby avoiding the decline of electrolytic efficiency or equipment damage due to insufficient or excessive water. Secondly, the temperature sensor 22 can accurately sense the temperature in the hydrogen production water tank 2. In the process of electrolytic water hydrogen production, temperature is an important factor affecting electrolytic efficiency and hydrogen purity. Through real-time monitoring of the temperature sensor 22, the temperature in the water tank can be adjusted in time to keep it within the optimal working range, thereby improving the electrolytic efficiency and the purity of hydrogen. In addition, the use of liquid level sensor 21 and temperature sensor 22 also improves the automation level and safety of the multi-electrolytic cell 3 hydrogen production system. The sensors can transmit data to the control system in real time, enabling the system to automatically adjust the working state according to real-time data, thereby reducing manual intervention and errors.
[0029] The hydrogen production water tank 2 is provided with an oxygen exhaust port 23 with an oxygen extraction fan 231. In this embodiment, through the cooperation of the oxygen exhaust port 23 and the oxygen extraction fan 231, the excess oxygen generated during the hydrogen production process is effectively removed, ensuring the purity and efficiency of hydrogen production. In the process of electrolytic water hydrogen production, oxygen is a byproduct, and if not removed in time, it may affect the quality and production efficiency of hydrogen. The role of the oxygen extraction fan 231 is to accelerate the removal of oxygen and improve the overall performance of the system. Secondly, the oxygen extraction fan 231 also helps to maintain the balance of gas concentration in the system and ensure the safety of the working environment.
[0030] The hydrogen production water tank 2 is provided with a water circulation module 24 for water circulation in the hydrogen production water tank 2. In the embodiment, the water circulation module 24 can ensure continuous water flow in the hydrogen production water tank 2, thereby effectively improving the electrolysis efficiency. In the multi-electrolytic cell 3 hydrogen production system, the performance of the electrolytic cell 3 depends largely on the temperature and flow state of the water, and the water circulation module 24 provides a more stable and efficient reaction environment for the electrolysis process by keeping the water temperature constant and uniformly distributing the water.
[0031] A plurality of water pumps 41 are arranged on the tapping pipe 4, and the plurality of water pumps 41 are connected to the plurality of electrolytic cells 3, respectively, for conveying water in the hydrogen production water tank 2 to the electrolytic cells 3. One end of the tapping pipe 4 is connected to a drain pipe. In the embodiment, efficient distribution and conveying of the water source in the hydrogen production water tank 2 are achieved. Through the cooperative work of the plurality of water pumps 41, it can be ensured that each electrolytic cell 3 can obtain stable and sufficient water flow, thereby improving the hydrogen production efficiency of the whole system. The arrangement of the drain pipe helps to timely remove waste water in the system, keeps the electrolytic cell 3 and the pipe clean, and avoids equipment failure and efficiency reduction caused by scale, impurities, etc.
[0032] A check valve (not shown in the figure) is arranged on the hydrogen outlet 311. The hydrogen outlet 311 is connected to an emptying pipe 314, which is provided with a one-way valve 315 and a safety valve 316. In the embodiment, the check valve can effectively prevent the backflow of hydrogen in the system, ensure the one-way flow of hydrogen, and thus maintain the stability and safety of the system. The emptying pipe 314 connected to the hydrogen outlet 311 and the one-way valve 315 and the safety valve 316 arranged thereon further enhance the reliability of the system. The one-way valve 315 ensures the one-way flow of hydrogen in the emptying pipe 314, avoiding potential risks caused by hydrogen backflow. The safety valve 316 serves as a key protection device of the system, which can automatically release excess hydrogen when the system pressure is too high, preventing equipment damage or safety accidents caused by excessive pressure.
[0033] The electrolytic cell 3 is provided with a flow detection element 33. In the embodiment, by monitoring the electrolyte flow of each electrolytic cell 3 in real time, the system can accurately control the distribution and circulation of the electrolyte, and ensure that the electrolysis reaction in each electrolytic cell 3 is carried out under optimal conditions.
[0034] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.
Claims
1. A multi-electrolyzer hydrogen production system, characterized by: Including water supply unit, hydrogen water tank and multiple electrolytic cells, the water supply unit is connected with hydrogen water tank, the hydrogen water tank is provided with tapping pipeline, the hydrogen water tank is connected with multiple electrolytic cells through tapping pipeline, each electrolytic cell is provided with circulating unit and two hydrogen outlet units, the electrolytic cell is connected with hydrogen water tank through circulating unit;The hydrogen outlet unit includes hydrogen outlet, the hydrogen outlet is provided with hydrogen pressure sensor and electromagnetic safety valve, the hydrogen pressure sensor is used to detect the hydrogen pressure of hydrogen outlet.
2. The multi-electrolyzer hydrogen production system of claim 1, wherein: The water supply unit is a pure water machine, and the water supply unit is connected with the hydrogen water tank through a pipeline, and an electromagnetic valve is arranged on the pipeline.
3. The multi-electrolyzer hydrogen production system of claim 1, wherein: The hydrogen water tank is provided with a liquid level sensor and a temperature sensor, the liquid level sensor is used to sense the water capacity in the hydrogen water tank, and the temperature sensor is used to sense the temperature in the hydrogen water tank.
4. The multi-electrolyzer hydrogen production system of claim 1, wherein: The hydrogen water tank is provided with an oxygen exhaust port, and an oxygen exhaust fan is arranged on the oxygen exhaust port.
5. The multi-electrolyzer hydrogen production system of claim 1, wherein: The hydrogen water tank is provided with a water circulation module, which is used for water circulation in the hydrogen water tank.
6. The multi-electrolyzer hydrogen production system of claim 1, wherein: Multiple water pumps are arranged on the tapping pipeline, and the multiple water pumps are connected with the multiple electrolytic cells respectively, so as to deliver water in the hydrogen water tank to the electrolytic cells.
7. The multi-electrolyzer hydrogen production system of claim 1, wherein: One end of the tapping pipeline is connected with a drain pipe.
8. The multi-electrolyzer hydrogen production system of claim 1, wherein: A check valve is arranged on the hydrogen outlet.
9. The multi-electrolyzer hydrogen production system of claim 1, wherein: The electrolytic cell is provided with a flow detection element.
10. The multi-electrolyzer hydrogen production system of claim 1, wherein: The hydrogen outlet is connected with an emptying pipeline, and the emptying pipeline is provided with a one-way valve and a safety valve.