Hydrogen production and storage integrated device
By designing an integrated hydrogen production and hydrogen storage device including an electrolytic box, a hydrogen storage box, a liquid storage box, an air-cooled radiator and a water pump, the complex and uneven structure of the electrolyte is solved, and the stability of the electrolyte temperature and the improvement of hydrogen production efficiency are achieved.
Patent Information
- Application Number
- CN202421507210.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-06-28
AI Technical Summary
In existing hydrogen production equipment, the real-time cooling structure of the electrolyte is complex, resulting in a decrease in electrolytic benefits and the uneven electrolyte solution affects the hydrogen production efficiency.
A hydrogen production and hydrogen storage integrated device is designed, including an electrolytic box, a hydrogen storage box, a liquid storage box, an air-cooled radiator and a water pump. By monitoring the temperature of the electrolyte, the air-cooled radiator and a water pump are used to achieve real-time cooling of the electrolyte, and the uniformity and temperature stability of the electrolyte are ensured through the stirring component and the electric heater.
The structure of the electrolytic box is simplified, the efficiency reduction caused by the increase in the electrolyte temperature is avoided, the uniformity and temperature stability of the electrolyte are ensured, and the hydrogen production efficiency is improved.
Smart Images
Figure CN222684784U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydrogen production equipment, in particular to an integrated hydrogen production and storage device. Background Art
[0002] Hydrogen energy has the advantages of being clean, renewable and pollution-free. Traditional hydrogen production and storage need to be completed by separate equipment. When water electrolysis is used to produce hydrogen, the core of hydrogen production is the electrolysis box. Since the electrodes themselves release heat during the hydrolysis process, the temperature of the electrolyte rises above the normal electrolysis temperature. Failure to cool down in time will lead to reduced efficiency of electrolysis. The existing cooling method uses heat exchange tubes in the electrolysis box. The heat exchange tubes occupy a large amount of electrolysis space, resulting in a complex structure of the electrolysis box. Moreover, the electrolysis reaction will cause uneven electrolyte production, affecting the normal electrolysis process and hydrogen production efficiency, and the electrolyte needs to be replaced frequently. Therefore, an integrated hydrogen production and storage device is designed to solve the above problems. Utility Model Content
[0003] The utility model aims to overcome the shortcomings of the above-mentioned prior art and provide an integrated hydrogen production and storage device to solve the problem of complex structure of real-time cooling of electrolyte in the existing hydrogen production equipment.
[0004] The technical solution adopted by the utility model to solve its technical problems is:
[0005] A hydrogen production and storage integrated device comprises an electrolytic box and a hydrogen storage box, wherein the top hydrogen discharge pipe of the electrolytic box is connected to the hydrogen storage box, and further comprises a liquid storage box, an air-cooled radiator and a water pump, wherein the liquid discharge port of the electrolytic box is sequentially connected to the water pump and the air-cooled radiator; the outlet of the air-cooled radiator is connected to the top water inlet of the liquid storage box, and the bottom water outlet of the liquid storage box is sequentially connected to a solenoid valve and the liquid inlet of the electrolytic box; a temperature sensor for monitoring the temperature of the electrolyte is arranged in the electrolytic box.
[0006] Furthermore, it also includes a drying box; the bottom inlet of the drying box is connected to the hydrogen exhaust pipe, and the top outlet of the drying box is connected to the hydrogen storage box.
[0007] Furthermore, a waste liquid discharge bypass is provided at the water outlet of the water pump; the bypass is provided with a second solenoid valve, which is electrically connected to the controller; and the liquid storage tank is provided with a liquid filling port.
[0008] Furthermore, an electric heater and a temperature sensor are arranged in the liquid storage tank.
[0009] Furthermore, it also includes a stirring assembly, which includes a stirring shaft, a stirring rod, and fan blades; both ends of the stirring shaft are rotatably connected to the middle part of the liquid storage tank; the fan blades are connected around the upper part of the stirring shaft; the stirring rod is connected around the lower part of the stirring shaft; the liquid filling port of the liquid storage tank is connected to a liquid filling pipe; the water inlet of the liquid storage tank is connected to a water inlet pipe; the outlets of the liquid filling pipe and the water inlet pipe are both facing the fan blades.
[0010] Furthermore, the liquid adding pipe and the water inlet pipe are symmetrically arranged around the center of the stirring shaft.
[0011] The utility model has the following beneficial effects:
[0012] 1. The utility model provides an integrated hydrogen production and storage device, including an electrolytic box, a hydrogen storage box, a liquid storage box, an air-cooled radiator, and a water pump. The hydrogen in the electrolytic box enters the hydrogen storage box from the hydrogen exhaust pipe; a temperature sensor for monitoring the temperature of the electrolyte is provided in the electrolytic box. When the real-time temperature of the electrolyte in the electrolytic box exceeds the specified value, the electrolyte in the electrolytic box is transported by the water pump into the air-cooled radiator for cooling, and then enters the liquid storage box; and then returns to the electrolytic box through the water outlet of the liquid storage box; the electrolyte temperature inside the electrolytic box is balanced to ensure that the temperature of the electrolyte is maintained within the specified value range, maintain the high efficiency of hydrogen production by electrolysis, and the cooling of the electrolyte does not occupy the space of the electrolytic box, simplifying the structure of the electrolytic box.
[0013] 2. The device also includes a drying box; the inlet and outlet of the drying box are connected between the hydrogen exhaust pipe and the hydrogen storage box; the produced hydrogen is dried by relying on the desiccant filled inside to improve the quality of the hydrogen in the hydrogen storage box.
[0014] 3. A waste liquid discharge bypass is set at the outlet of the water pump to discharge the uneven electrolyte in the electrolytic box through the second solenoid valve; the external new electrolyte enters the liquid storage tank from the liquid filling port and is finally added into the electrolytic box to ensure that the electrolytic box works under stable conditions and improve the efficiency of electrolysis.
[0015] 4. An electric heater is installed in the liquid storage tank to preheat the electrolyte in the liquid storage tank to ensure that the temperature of the electrolyte entering the electrolytic box meets the electrolysis requirements.
[0016] 5. The device is also provided with a stirring assembly, which includes a stirring shaft, a stirring rod, and fan blades; the stirring assembly does not require electric drive, and by aligning the water inlet and the liquid filling port on the liquid storage tank toward the fan blades, the fan blades rotate by relying on the impact of the electrolyte, thereby driving the stirring rod to complete the uniform mixing of the electrolyte in the electrolytic box and the external electrolyte, which is conducive to the uniform heating of the electrolyte. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The utility model is further described below in conjunction with the accompanying drawings:
[0018] Figure 1 It is the front view of the utility model;
[0019] Figure 2 It is a top view of the utility model;
[0020] Figure 3 for Figure 1 A partial enlarged view of the AA area in the middle.
[0021] In the figure, 1. electrolytic box; 11. hydrogen exhaust pipe; 2. hydrogen storage box; 3. liquid storage box; 31. electric heater; 32. liquid adding pipe; 33. water inlet pipe; 4. air-cooled radiator; 5. water pump; 6. solenoid valve 1; 7. drying box; 8. solenoid valve 2; 9. stirring assembly; 91. stirring shaft; 92. stirring rod; 93. fan blade. DETAILED DESCRIPTION
[0022] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments.
[0023] like Figure 1-Figure 3 As shown, the utility model provides an integrated hydrogen production and storage device, including an electrolytic box 1 and a hydrogen storage box 2. A hydrogen discharge pipe 11, an oxygen discharge pipe, a positive electrode line and a negative electrode line connected to the electrodes are arranged on the top of the electrolytic box 1; the hydrogen discharge pipe 11 on the top of the electrolytic box 1 is connected to the hydrogen storage box 2, and preferably, a one-way valve is arranged at the air inlet of the hydrogen storage box 2. The device also includes a liquid storage box 3, an air-cooled radiator 4, and a water pump 5. The liquid discharge port of the electrolytic box 1 is sequentially connected to the water pump 5 and the air-cooled radiator 4; the outlet of the air-cooled radiator 4 is connected to the top water inlet of the liquid storage box 3, and the bottom water outlet of the liquid storage box 3 is sequentially connected to the solenoid valve 16 and the liquid inlet of the electrolytic box 1; the liquid in the liquid storage box 3 can enter the electrolytic box 1 through the solenoid valve 16 by pumping or gravity.
[0024] A temperature sensor for monitoring the temperature of the electrolyte is provided in the electrolytic box 1. The temperature sensor is used to feed back the real-time temperature of the electrolyte in the electrolytic box 1 to the controller, and the controller controls the start and stop of the water pump 5 and the air-cooled radiator 4.
[0025] When the real-time temperature of the electrolyte exceeds the specified value, the water pump 5 is started to pump the over-temperature electrolyte into the air-cooled radiator 4, and the electrolyte flows through the air-cooled pipe to cool down and then enters the liquid storage tank 3; at the same time, the controller controls the solenoid valve 6 to open, so that the liquid storage tank 3 is connected with the electrolytic tank 1, and the cooled electrolyte re-enters the electrolytic tank 1 to balance the internal temperature of the electrolytic tank 1, ensuring that the temperature of the electrolyte is maintained within the specified value range, thereby maintaining the high efficiency of hydrogen production by electrolysis.
[0026] like Figure 2As shown, the device also includes a drying box 7; the bottom inlet of the drying box 7 is connected to the hydrogen exhaust pipe 11, and the top outlet of the drying box 7 is connected to the hydrogen storage box 2; specifically, in this embodiment, the drying box 7 is installed on the top side of the electrolytic box 1; the drying box 7 adopts the existing hydrogen drying structure, and the drying box 7 is filled with a desiccant; the hydrogen produced by electrolyzing water is dried by the desiccant to improve the quality of the hydrogen in the hydrogen storage box 2.
[0027] Due to the chemical changes of the electrolyte during the electrolysis reaction, the electrolyte becomes uneven, affecting the quality and efficiency of the electrolysis. In order to discharge the uneven electrolyte in time; Figure 2 As shown, a waste liquid discharge bypass is arranged at the water outlet of the water pump 5; the bypass is provided with an electromagnetic valve 2 8, and the electromagnetic valve 2 8 is electrically connected to the controller; after the electromagnetic valve 2 8 is controlled to be opened, the water pump 5 discharges part of the electrolyte in the electrolytic box 1 from the bypass, and the electrolyte no longer enters the liquid storage tank 3 and the electrolytic box 1 for circulation, thereby playing the role of regularly discharging the electrolyte.
[0028] The liquid storage tank 3 is provided with a liquid filling port; new external electrolyte enters the liquid storage tank 3 from the liquid filling port, and the electrolyte in the electrolytic box 1 mixes with the new electrolyte and then flows into the electrolytic box 1; the liquid filling port is provided with an electromagnetic valve for controlling on and off, and the amount of newly added electrolyte is controlled by the controller to maintain the balance in the electrolytic box 1.
[0029] like Figure 3 As shown, an electric heater 31 and a temperature sensor are arranged in the liquid storage tank 3. The electric heater 31 adopts the existing heating rod form, and the electric heater 31 and the temperature sensor are electrically connected through the controller.
[0030] When a large amount of electrolyte is discharged and a large amount of new electrolyte is added from the liquid filling port, the electrolyte temperature in the liquid storage tank 3 will be lower than the specified value; the temperature of the electrolyte in the liquid storage tank 3 is monitored by a temperature sensor, and the electrolyte that is about to enter the electrolytic box 1 is heated by the electric heater 31 to avoid the electrolyte temperature entering the electrolytic box 1 being too low, which affects the electrolysis efficiency.
[0031] like Figure 3 As shown, the device also includes a stirring component 9, which includes a stirring shaft 91, a stirring rod 92, and a fan blade 93; both ends of the stirring shaft 91 are rotatably connected to the middle of the liquid storage tank 3; the fan blade 93 is connected around the upper part of the stirring shaft 91; the stirring rod 92 is connected around the lower part of the stirring shaft 91; the liquid filling port of the liquid storage tank 3 is connected to the liquid filling pipe 32; the water inlet of the liquid storage tank 3 is connected to the water inlet pipe 33; the outlets of the liquid filling pipe 32 and the water inlet pipe 33 are both facing the fan blade 93.
[0032] The stirring assembly 9 of the device does not require external electric drive, and only relies on the electrolyte input from the liquid adding pipe 32 and the water inlet pipe 33 to impact the fan blades 93, so that the fan blades 93 and the stirring rod 92 rotate, which not only mixes the new and old electrolytes evenly, and the uniform electrolyte is beneficial to improving the efficiency of electrolysis; and the stirring effect causes the electrolyte to flow through the electric heater 31, so that the electrolyte in the liquid storage tank 3 is evenly heated.
[0033] like Figure 3 As shown, the liquid adding pipe 32 and the water inlet pipe 33 are symmetrically arranged around the center of the stirring shaft 91; the outlets of the liquid adding pipe 32 and the water inlet pipe 33 simultaneously guide the new and old electrolytes toward the fan blades 93, and rely on the flow of fluids in two directions to make the fan blades 93 drive the stirring rod 92 to rotate quickly, thereby improving the stirring effect.
[0034] In the description of the present invention, terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "vertical", and "horizontal" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are merely relational words for the convenience of describing the present invention, and do not necessarily require the present invention to be constructed or operated in a specific direction. They do not specifically refer to any component or element, and cannot be understood as limitations on the present invention.
[0035] The terms "connected" and "connection" in the present invention should be understood in a broad sense. For example, it can be a connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0036] The embodiments of the utility model are only a part of the embodiments, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. This specification is described in accordance with the implementation mode, only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. An integrated hydrogen production and storage device, comprising an electrolytic box (1) and a hydrogen storage box (2), wherein a top hydrogen discharge pipe (11) of the electrolytic box (1) is connected to the hydrogen storage box (2), characterized in that: It also includes a liquid storage tank (3), an air-cooled radiator (4), and a water pump (5); the discharge port of the electrolytic tank (1) is connected to the water pump (5) and the air-cooled radiator (4) in sequence; the outlet of the air-cooled radiator (4) is connected to the top water inlet of the liquid storage tank (3), and the bottom water outlet of the liquid storage tank (3) is connected to the solenoid valve (6) and the liquid inlet of the electrolytic tank (1) in sequence; and a temperature sensor for monitoring the temperature of the electrolyte is arranged in the electrolytic tank (1).
2. The integrated hydrogen production and storage device according to claim 1, characterized in that: It also includes a drying box (7); the bottom inlet of the drying box (7) is connected to the hydrogen exhaust pipe (11), and the top outlet of the drying box (7) is connected to the hydrogen storage box (2).
3. The integrated hydrogen production and storage device according to claim 1, characterized in that: The water outlet of the water pump (5) is provided with a waste liquid discharge bypass; the bypass is provided with a second solenoid valve (8), and the second solenoid valve (8) is electrically connected to the controller; the liquid storage tank (3) is provided with a liquid filling port.
4. The integrated hydrogen production and storage device according to claim 3, characterized in that: An electric heater (31) and a temperature sensor are arranged in the liquid storage tank (3).
5. The integrated hydrogen production and storage device according to claim 1, characterized in that: The invention also comprises a stirring assembly (9), wherein the stirring assembly (9) comprises a stirring shaft (91), a stirring rod (92), and a fan blade (93); the two ends of the stirring shaft (91) are rotatably connected to the middle part of the liquid storage tank (3); the fan blade (93) is connected around the upper part of the stirring shaft (91); the stirring rod (92) is connected around the lower part of the stirring shaft (91); the liquid filling port of the liquid storage tank (3) is connected to a liquid filling pipe (32); the water inlet of the liquid storage tank (3) is connected to a water inlet pipe (33); and the outlets of the liquid filling pipe (32) and the water inlet pipe (33) are both oriented toward the fan blade (93).
6. The integrated hydrogen production and storage device according to claim 5, characterized in that: The liquid adding pipe (32) and the water inlet pipe (33) are symmetrically arranged around the center of the stirring shaft (91).