Electrolyte super-long time sealing, staying and automatic activation device

Abstract

This invention discloses an ultra-long-term sealed storage and automatic activation device for electrolytes, comprising an electrolyte tank with a reservoir for sealed storage of electrolytes inside the tank. An automatic activation device is mounted on the electrolyte tank, located on one side of the reservoir. The automatic activation device includes a housing with a cutting groove on the side adjacent to the reservoir. A hollow portion inside the housing is used to install a piercing device. The cutting groove and the piercing device are at a certain distance. The piercing device is used to pass through the cutting groove and puncture the reservoir only during movement. The piercing device is connected to a power unit, which is connected to the starting battery of the aluminum-air power plant and drives the piercing device. The outlet is connected to the inlet of the circulating pump of the aluminum-air power plant, and the inlet is connected to the return port of the aluminum-air power plant stack. This invention achieves ultra-long-term sealed storage and automatic activation of electrolytes in aluminum-air power plants, ensuring that backup emergency power plants can generate electricity normally at critical moments, and the device is convenient and quick to operate.

Description

Technical Field

[0001] This invention belongs to the technical field of aluminum-air batteries, specifically relating to a device for ultra-long-term sealed storage and automatic activation of electrolyte. Background Technology

[0002] An aluminum-air battery consists of a stack and an electrolyte tank. The electrolyte is drawn from the tank and transferred to the reactor in the stack to generate electricity. The electrolyte is stored in the tank when not in use. Because aluminum-air batteries are typically used as emergency backup power stations, they are often left idle for extended periods. Prolonged exposure of the electrolyte to air can cause it to react with certain gases, leading to a decrease in conductivity or even failure. This results in a reduction in the power output of the emergency backup battery or a complete loss of power generation.

[0003] Chinese invention patent CN106898845A discloses a metal / air battery system, which includes a liquid storage unit with a separator inside. When the separator is closed, the liquid storage unit is divided into two independent sealed cavities. One sealed cavity is used to store a solid electrolyte or a supersaturated electrolyte solution, and the other sealed cavity is used to store an unsaturated electrolyte solution or water. When the separator is opened, the two independent cavities inside the liquid storage unit are connected, enabling the automatic preparation of the electrolyte solution required for the metal / air battery reaction. This invention also provides a method to accelerate the dissolution of the solid electrolyte by shaking a circular telescopic column. However, when the liquid storage unit of this invention is bladder-shaped, it is impossible to separate the liquid storage unit into two independent cavities using a separator. In practical use, the sealed storage described in the invention cannot be achieved. Furthermore, connecting the bladder-shaped liquid storage unit using a serrated separator greatly increases the risk of rupturing the liquid storage unit and causing electrolyte leakage. Additionally, the activation achieved by the separator and the circular telescopic column requires manual opening of the separator or shaking of the telescopic column, making rapid automatic activation impossible.

[0004] Chinese utility model patent CN202855852U discloses an activation device for a reserve battery. High-pressure gas enters the activation device, pushing an elastic pusher diaphragm to bulge and puncture the electro-hydraulic separator, allowing communication between the electrolyte reservoir (separated by the separator) and the battery casing. The electrolyte in the reservoir, under its own weight, rapidly flows into the battery casing through the inlet of the inlet pipe, activating the plates and enabling the battery to start operating quickly. However, analysis reveals that during operation, the electrolyte in the reservoir at the top is hindered by the high-pressure gas below, preventing it from flowing smoothly and quickly into the battery casing under its own weight. This affects the efficiency of automatic battery activation and fails to guarantee the power generation startup efficiency of the backup emergency power station.

[0005] Therefore, how to ensure that the electrolyte used for power generation in an aluminum-air power plant does not come into prolonged contact with air during long-term storage, thus preventing a decrease in its conductivity or failure, while ensuring that the backup emergency power plant can generate electricity normally at critical moments, has become a technical problem that urgently needs to be solved and a key focus of continuous research for those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide an electrolyte long-term sealed storage and automatic activation device to achieve long-term storage and rapid automatic activation of electrolytes.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An electrolyte long-term sealed storage and automatic activation device includes an electrolyte tank with an outlet and an inlet at the bottom, both equipped with valves. A reservoir is located inside the electrolyte tank for sealed storage of electrolyte. An automatic activation device is mounted on the electrolyte tank, located on one side of the reservoir. The automatic activation device includes a housing with a cutting groove on the side adjacent to the reservoir. A hollow portion inside the housing is used to install a piercing device. The cutting groove and the piercing device are at a certain distance. The piercing device is used to pass through the cutting groove and puncture the reservoir only during movement. The piercing device is connected to a power unit, which is connected to the starting battery of the aluminum-air power plant and drives the piercing device. The outlet is connected to the inlet of the circulating pump of the aluminum-air power plant, and the inlet is connected to the return port of the aluminum-air power plant stack.

[0009] This invention achieves ultra-long-term sealed storage of electrolyte through the separation design of electrolyte and solvent. The automatic activation device enables one-button control of the aluminum air power station and automatic activation of electrolyte, which improves activation efficiency and is convenient and fast. The knife groove is set to isolate the puncture device from the storage bladder to prevent the device from activating when not in operation.

[0010] Preferably, the piercing device includes a transmission mechanism and a piercing mechanism. The transmission mechanism includes a first rotating shaft and a second rotating shaft arranged in parallel. The power device is connected to the first rotating shaft, and the piercing mechanism is mounted on the second rotating shaft. The first rotating shaft and the second rotating shaft are connected in a transmission manner.

[0011] Preferably, a drive sprocket is mounted on the first rotating shaft, and a driven sprocket is mounted on the second rotating shaft. A transmission chain is wound around the drive sprocket and the driven sprocket, and the drive sprocket drives the driven sprocket to rotate synchronously via the transmission chain. This chain-driven transmission structure saves space, enables the driving of the piercing mechanism, and facilitates installation.

[0012] Preferably, the puncture mechanism includes a knife holder and blades mounted at both ends of the knife holder. A through hole is provided on the second rotating shaft, through which the knife holder passes and is tightly fitted. There are at least two puncture mechanisms, evenly distributed on the second rotating shaft. Puncture of the reservoir is achieved through the blades and knife holder; the structure is simple, easy to install, and cost-effective.

[0013] Preferably, the electrolyte tank has a filling port at the top, and the opening of the reservoir is connected to the filling port of the electrolyte tank and is covered with a sealing cap. The filling port facilitates the addition of electrolyte or electrolyte solution to the reservoir to adjust the electrolyte concentration.

[0014] Since different aluminum air power plants have different specific structures, the power unit is installed on a mounting plate outside the electrolyte tank. A protective cover is fixed to the outside of the mounting plate so that the position of the power unit can be adjusted according to the specific structure of the aluminum air power plant, and the position of the protective cover will also change accordingly.

[0015] Preferably, the electrolyte tank includes a lower tank body and an upper cover, the upper cover including a fastening structure for sealing and fastening with the lower tank body. The split design of the electrolyte tank facilitates the installation of an automatic activation device and the replacement of the storage tank, saving costs.

[0016] Preferably, one side of the housing is fixedly connected to the electrolyte tank via a connecting plate, and the connecting plate and the knife groove are located on different sides of the housing. The housing has an open design on one side to save costs and facilitate inspection and replacement of the puncture mechanism. Attached Figure Description

[0017] The following is a detailed description of the electrolyte ultra-long-term sealed storage and automatic activation device according to the present invention, with reference to the accompanying drawings:

[0018] Figure 1 This is the front view of the present invention;

[0019] Figure 2 yes Figure 1 Sectional view along line AA in the middle;

[0020] Figure 3 yes Figure 1 BB-direction sectional view in the middle;

[0021] Figure 4 This is a front view of the automatic activation device of the present invention;

[0022] Figure 5 This is a cross-sectional view of the automatic activation device of the present invention along the CC direction;

[0023] Figure 6 This is a schematic cross-sectional view of the automatic activation device of the present invention along the DD direction;

[0024] Figure 7This is a side perspective view of the automatic activation device of the present invention;

[0025] Figure 8 This is a schematic diagram of the puncture mechanism of the present invention.

[0026] The markings in the diagram are: 1-Electrolyte tank, 2-Reservoir, 3-Automatic activation device, 4-Adding port, 5-Outlet port, 6-Inlet port, 301-Housing shell, 302-First rotating shaft, 303-Second rotating shaft, 304-Drive chain, 305-Piercing mechanism, 306-Knife groove, 307-Protective cover, 308-Mounting plate, 309-Power unit, 310-Knife holder, 311-Knife head, 312-Connecting plate, 313-Drive sprocket, 314-Driven sprocket, 315-First power transition shaft, 316-Coupling, 317-Second power transition shaft. Detailed Implementation

[0027] like Figure 1-3 As shown, the present invention provides an electrolyte long-term sealed storage and automatic activation device, including an electrolyte tank 1. The bottom of the electrolyte tank 1 has an outlet 5 and an inlet 6, both of which are equipped with valves. The electrolyte tank 1 contains a reservoir 2 for sealed storage of electrolyte. An automatic activation device 3 is installed on the electrolyte tank 1, located on one side of the reservoir. The automatic activation device 3 includes a housing 301. A knife groove 306 is opened on the side of the housing 301 adjacent to the reservoir 2. The hollow part inside the housing 301 is used to install a piercing device. The knife groove 306 is at a certain distance from the piercing device. The piercing device is used to pass through the knife groove 306 and puncture the reservoir 2 only when in motion. The piercing device is connected to a power device 309. The power device 309 is used to connect to the starting battery of the aluminum-air power station and drive the piercing device to move. The outlet 5 is used to connect to the inlet of the circulating pump of the aluminum-air power station, and the inlet 6 is used to connect to the return port of the aluminum-air power station stack.

[0028] In this embodiment, the main body of the automatic activation device 3 is installed inside the electrolyte tank 1. During installation, a certain amount of solvent is pre-filled in the electrolyte tank 1, and the corresponding proportion of electrolyte is loaded into the reservoir 2 and then sealed. The reservoir 2 is placed inside the electrolyte tank 1 near the pass-through groove 306 of the automatic activation device 2. Because the electrolyte is heavy, it will not easily change position after being placed at the bottom of the electrolyte tank 1. In addition, the reservoir 2 is made of inert material, so long-term storage of the electrolyte will not cause it to react with the electrolyte or solvent, nor will it interfere with electrolyte formation. During operation, before electrolyte circulation, the power unit 309 is started via the control panel of the aluminum-air power station. After startup, the power unit 309 drives the transmission mechanism to rotate, which in turn drives the puncture mechanism 305. During rotation, the puncture mechanism 305 passes through the cutting groove 306 and cuts the reservoir 2. After the circulation pump is activated, the solvent continuously flushes the electrolyte in the reservoir 2. The puncture mechanism 305 acts as a stirrer, causing the electrolyte, which was originally completely isolated from air, to dissolve with the solvent after the reservoir is punctured, gradually forming a uniform electrolyte. The electrolyte is pumped out from the outlet 5 into the fuel cell reactor and then re-enters the electrolyte tank 1 through the inlet 6, thus forming a circulation that meets the electrolyte circulation requirements during aluminum-air power supply operation. The entire process is automatically activated without manual intervention, avoiding problems such as performance degradation due to long-term electrolyte exposure.

[0029] This invention achieves ultra-long-term sealed storage of the electrolyte through the separation design of the electrolyte and solvent. The electrolyte and solvent are mixed through a puncture device. The electrolyte is fully dissolved and pumped into the reactor stack using the circulation pump of the aluminum-air power plant. The puncture device and the storage tank are isolated by the knife groove to prevent the device from being activated in a non-operating state. The automatic activation device enables one-button control of the aluminum-air power plant and automatic activation of the electrolyte, which improves the activation efficiency and is convenient and fast.

[0030] In this embodiment, as Figure 4-7 As shown, the puncture device includes a transmission mechanism and a puncture mechanism 305. The transmission mechanism includes a first rotating shaft 302 and a second rotating shaft 303 arranged in parallel. A power device 309 is connected to the first rotating shaft 302. The puncture mechanism 305 is mounted on the second rotating shaft 303. The first rotating shaft 302 and the second rotating shaft 303 are connected in a transmission manner.

[0031] A drive sprocket 313 is mounted on the first rotating shaft 302, and a driven sprocket 314 is mounted on the second rotating shaft 303. A transmission chain 304 is wound around the drive sprocket 313 and the driven sprocket 314, and the drive sprocket 313 drives the driven sprocket 314 to rotate synchronously through the transmission chain 304. Figure 6As shown, a first power transition shaft 315 and a second power transition shaft 317 are arranged parallel to the first rotating shaft 302. Sprockets for tensioning the transmission chain 304 are mounted on the first power transition shaft 315 and the second power transition shaft 317. They are connected by a chain drive structure, thus saving space, driving the piercing mechanism 305, and facilitating installation. The first rotating shaft 302 and the second rotating shaft 303 can also be connected by a conveyor belt.

[0032] In this embodiment, as Figure 8 As shown, the puncture mechanism 305 includes a knife holder 310 and knife heads 311 mounted at both ends of the knife holder 310. A through hole is provided on the second rotating shaft 303, through which the knife holder 310 passes and is tightly fitted. There are at least two puncture mechanisms 305, evenly distributed on the second rotating shaft 303. Puncture of the reservoir is achieved through the knife heads and knife holder. The structure is simple and easy to install, saving costs. The through holes are preferably machined using electroporation and wire cutting processes to ensure accuracy and prevent the puncture mechanisms 305 from falling off. The number of puncture mechanisms 305 affects the electrolyte preparation speed.

[0033] In this embodiment, as Figure 1-3 As shown, the electrolyte tank 1 has a filling port 4 at the top, and the opening of the reservoir 2 is connected to the filling port 4 of the electrolyte tank 1 and is equipped with a sealing cap. By providing the filling port, it is convenient to add electrolyte or electrolyte solution into the reservoir to adjust the electrolyte concentration.

[0034] In this embodiment, as Figure 4-6 As shown, the power unit 309 is mounted on a mounting plate 308 located outside the electrolyte tank 1, and a protective cover 307 is fixedly installed on the outside of the mounting plate 308. Due to the different specific structures of different aluminum-air power plants, the position of the power unit is adjusted according to the specific structure of the aluminum-air power plant, and the position of the protective cover is also changed accordingly.

[0035] In this embodiment, the electrolyte tank 1 includes a lower tank body and an upper cover. The upper cover includes a fastening structure for sealing and fastening with the lower tank body. The split design of the electrolyte tank 1 facilitates the installation of the automatic activation device 3 and the replacement of the storage tank 2, saving costs.

[0036] In this embodiment, as Figure 4 As shown, one side of the housing 301 is fixedly connected to the electrolyte tank 1 via a connecting plate 312. The connecting plate 312 and the knife groove 306 are located on different sides of the housing 301. The housing has an open design on one side to save costs and facilitate inspection and replacement of the puncture device.

[0037] This invention solves the problem of decreased conductivity of electrolyte in aluminum air power plants under long-term storage conditions, enabling long-term storage and rapid automatic activation of the electrolyte, while improving the automatic activation efficiency of the activation device, simplifying the device structure, and saving costs.

[0038] Another implementation involves installing the automatic activation device 3 above the electrolyte tank 1, with the knife groove close to the upper wall of the electrolyte tank 1. This will not be described in detail with illustrations.

[0039] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. An electrolyte long-term sealed storage and automatic activation device, comprising an electrolyte tank (1), wherein the bottom of the electrolyte tank (1) is provided with an outlet (5) and an inlet (6), both the outlet (5) and the inlet (6) are equipped with valves, characterized in that, The electrolyte tank (1) is used to pre-fill the solvent. The electrolyte tank (1) is provided with a reservoir (2). The reservoir (2) is used to seal and store the electrolyte. The electrolyte tank (1) is equipped with an automatic activation device (3). The automatic activation device (3) is located on one side of the reservoir (2). The automatic activation device (3) includes a shell (301). A knife groove (306) is opened on the side of the shell (301) adjacent to the reservoir (2). The hollow part inside the shell (301) is used to install a piercing device. The knife groove (306) is a certain distance from the piercing device. The piercing device is used to pass through the knife groove (306) and pierce the reservoir (2) only in motion, and is used to stir the electrolyte. The piercing device is connected to a power device (309). The power device (309) is used to connect to aluminum The air power station's own starting battery drives the piercing device to move. The liquid outlet (5) is used to connect to the inlet of the circulating pump of the aluminum air power supply. The liquid inlet (6) is used to connect to the return liquid outlet of the aluminum air power supply stack. The piercing device includes a transmission mechanism and a piercing mechanism (305). The transmission mechanism includes a first rotating shaft (302) and a second rotating shaft (303) arranged in parallel. The power device (309) is connected to the first rotating shaft (302). The piercing mechanism (305) is installed on the second rotating shaft (303). The first rotating shaft (302) and the second rotating shaft (303) are connected in a transmission manner. The piercing mechanism (305) includes a knife holder (310) and a knife head (311) installed at both ends of the knife holder (310). There are at least two piercing mechanisms (305), which are evenly distributed on the second rotating shaft (303).

2. The electrolyte ultra-long-term sealed storage and automatic activation device according to claim 1, characterized in that, A drive sprocket (313) is mounted on the first rotating shaft (302), and a driven sprocket (314) is mounted on the second rotating shaft (303). A transmission chain (304) is wound around the drive sprocket (313) and the driven sprocket (314). The drive sprocket (313) drives the driven sprocket (314) to rotate synchronously through the transmission chain (304).

3. The electrolyte ultra-long-term sealed storage and automatic activation device according to claim 1, characterized in that, The second rotating shaft (303) has a through hole, and the tool holder (310) passes through the through hole and is tightly fitted to the through hole.

4. The electrolyte ultra-long-term sealed storage and automatic activation device according to claim 1, characterized in that, The electrolyte tank (1) has a liquid filling port (4) at the top. The opening of the reservoir (2) is connected to the liquid filling port (4) of the electrolyte tank (1) and is provided with a sealing cover.

5. The electrolyte ultra-long-term sealed storage and automatic activation device according to claim 1, characterized in that, The power unit (309) is installed on the mounting plate (308) outside the electrolyte tank (1), and a protective cover (307) is fixedly provided on the outside of the mounting plate (308).

6. The electrolyte ultra-long-term sealed storage and automatic activation device according to claim 1, characterized in that, The electrolyte tank (1) includes a lower tank body and an upper cover, the upper cover including a fastening structure for sealing and fastening with the lower tank body.

7. The electrolyte ultra-long-term sealed storage and automatic activation device according to claim 1, characterized in that, One side of the housing (301) is fixedly connected to the electrolyte tank (1) via a connecting plate (312), and the connecting plate (312) and the knife groove (306) are located on different sides of the housing (301).

8. The electrolyte ultra-long-term sealed storage and automatic activation device according to claim 1, characterized in that, The automatic activation device (3) is installed above the electrolyte tank (1), and the knife groove is adjacent to the upper wall of the electrolyte tank (1).

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