A circulating power storage system for electrolysis / electroplating

Abstract

The application discloses a circulating power storage system for electrolysis / electroplating, which comprises a first storage system, a second storage system and an electrolysis / electroplating tank; the first storage system is electrically connected with the second storage system through a first charging circuit, so that the second storage system is charged by the first storage system when the second storage system is in a state of emptying electric energy; the second storage system is electrically connected with the first storage system through a second charging circuit, so that the first storage system is charged by the second storage system when the first storage system is in a state of emptying electric energy; the first storage system and the second storage system are communicated and interlocked through an industrial bus, so that only one of the first storage system and the second storage system can release electric energy at the same time; and the electrolysis / electroplating tank is connected in series on the first charging circuit and the second charging circuit. The circulating power storage system greatly improves the use efficiency of electric energy and greatly reduces the energy consumption cost of the electrolysis and electroplating industry.

Description

Technical Field

[0001] This invention relates to a circulating power storage system for electrolysis / electroplating, belonging to the field of energy storage technology. Background Technology

[0002] Currently, both electroplating (applying a layer of metal, including but not limited to copper, aluminum, and other metals, to a conductor using electrolysis) and electrolysis (the process of passing current through an electrolyte solution or molten electrolyte, causing oxidation-reduction reactions at the cathode and anode, including but not limited to aluminum electrolysis, hydrogen electrolysis, and other electrolytic processes) are energy-intensive industries. Even small electroplating plants incur monthly electricity costs of hundreds of thousands or even millions of yuan. This is because both electroplating and electrolysis industries rely on direct current voltage to drive metal ions to move directionally to the negative electrode, where they absorb electrons and are reduced to metal atoms to form a coating or metal substrate, creating conditions for high current consumption.

[0003] On the other hand, current electroplating and electrolysis industries mostly rely on primary energy consumption methods. The power grid generates DC output through transformers and voltage regulators / current limiters. Driven by an electric field, the metal ions in the plating layer absorb electrons and adhere to the plated parts. The amount of ion conversion in the plating layer is directly proportional to the current flow, resulting in high energy consumption in electroplating and electrolysis. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a circulating power storage system for electrolysis / electroplating to reduce the power consumption during the electroplating and electrolysis process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A circulating power storage system for electrolysis / electroplating includes a first energy storage system, a second energy storage system, and an electrolysis / electroplating tank; wherein,

[0007] The first energy storage system is electrically connected to the second energy storage system through a first charging circuit, so that when the second energy storage system is depleted of electrical energy, the first energy storage system can charge the second energy storage system.

[0008] The second energy storage system is electrically connected to the first energy storage system through a second charging circuit, so that when the first energy storage system is depleted of electrical energy, the second energy storage system can charge the first energy storage system.

[0009] The first energy storage system and the second energy storage system are interlocked via industrial bus communication so that only one of the first energy storage system and the second energy storage system can release electrical energy at any given time.

[0010] The electrolysis / electroplating tank is connected in series with the first charging circuit and the second charging circuit.

[0011] Preferably, the first energy storage system includes: a first PCS energy storage power supply, a first DC voltage regulator and current limiter, and a first DC unidirectional rectifier bridge; the second energy storage system includes: a second PCS energy storage power supply, a second DC voltage regulator and current limiter, and a second DC unidirectional rectifier bridge;

[0012] The first PCS energy storage power supply is connected to the first DC voltage regulator and current limiter, and the second PCS energy storage power supply is connected to the second DC voltage regulator and current limiter; the first DC voltage regulator and current limiter are connected in series with the first DC unidirectional rectifier bridge and the electrolysis / electroplating tank, and are electrically connected to the second DC voltage regulator and current limiter to form the first charging circuit; the second DC voltage regulator and current limiter are connected in series with the second DC unidirectional rectifier bridge and the electrolysis / electroplating tank, and are electrically connected to the first DC voltage regulator and current limiter to form the second charging circuit.

[0013] Preferably, the circulating power storage system further includes a charging system, which is connected to the first energy storage system and / or the second energy storage system to replenish the first energy storage system and / or the second energy storage system with electrical energy.

[0014] Preferably, the charging system includes at least a transformer and a charger. The input end of the charger is connected to the power grid through the transformer, and the output end of the charger is connected to the first energy storage system and / or the second energy storage system to replenish electrical energy to the first energy storage system and / or the second energy storage system.

[0015] Preferably, the electrolytic / electroplating tank includes multiple plating components connected in parallel.

[0016] Preferably, the voltage of the first energy storage system and / or the second energy storage system is continuously adjustable within a first range, and the current of the first energy storage system and / or the second energy storage system is continuously adjustable within a second range.

[0017] Preferably, the first range is 0 to 100V and the second range is 0 to 50000A.

[0018] Preferably, the current flow direction of the first DC unidirectional rectifier bridge is opposite to that of the second DC unidirectional rectifier bridge.

[0019] Preferably, the cyclic power storage system further includes a circuit control system, which is electrically connected to the first energy storage system and the second energy storage system to control the first energy storage system or the second energy storage system to charge or discharge.

[0020] Preferably, the voltage stability range of the first DC voltage regulator and the second DC voltage regulator is 0 to 500V.

[0021] Compared with existing technologies, the circulating power storage system provided by this invention pre-stores a certain amount of electrical energy in the first and second energy storage systems. Internal energy transfer occurs through these two energy storage systems. During this transfer, an electrolysis / electroplating tank is connected in series with the energy transfer circuit to perform the electroplating or electrolytic refining process. This reduces energy loss, requiring only the replenishment of energy consumed during the internal energy transfer process (i.e., heat loss and charging / discharging efficiency losses). Consequently, it significantly improves energy efficiency and drastically reduces energy costs in the electrolysis and electroplating industries by up to 85%, enabling the completion of traditional electrolysis and electroplating operations with only 15% of the original energy. Attached Figure Description

[0022] Figure 1 This is a schematic diagram illustrating the working principle of a circulating power storage system for electrolysis / electroplating, provided by an embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram illustrating the working principle of the first energy storage system charging the second energy storage system through the first charging circuit in an embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram illustrating the working principle of the second energy storage system charging the first energy storage system through the second charging circuit in an embodiment of the present invention.

[0025] Figure 4 This is a circuit control system architecture diagram of a circulating power storage system for electrolysis / electroplating, as described in an embodiment of the present invention. Detailed Implementation

[0026] The technical content of the present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0027] This invention utilizes energy storage technology to change the one-time energy consumption mode of existing electroplating (which uses the principle of electrolysis to lay a layer of metal on a conductor, including but not limited to various metals such as copper and aluminum) and electrolysis (which uses current to pass through an electrolyte solution or molten electrolyte to cause oxidation-reduction reactions at the cathode and anode, including but not limited to various electrolysis processes such as electrolytic aluminum and electrolytic hydrogen production) production technologies into a reusable mode, thereby achieving the goal of reducing energy consumption.

[0028] The following is a detailed description of the cyclic power storage system provided in the embodiments of the present invention:

[0029] Please refer to Figure 1As shown, an embodiment of the present invention provides a circulating power storage system for electrolysis / electroplating, which includes at least: a first energy storage system 10, a second energy storage system 20, and an electrolysis / electroplating tank 30.

[0030] Reference Figure 2 As shown, the first energy storage system 10 is connected via a first charging circuit (i.e., Figure 2 The route shown by the single arrow in the diagram is electrically connected to the second energy storage system 20. When the second energy storage system 20 is depleted of electrical energy, the first energy storage system 10 can charge the second energy storage system 20, thereby replenishing the second energy storage system 20 with electrical energy. During the replenishment process, a current will be generated in the first charging circuit accordingly.

[0031] Similarly, refer to Figure 3 As shown, the second energy storage system 20 is connected via a second charging circuit (i.e., Figure 3 The route indicated by the double arrows is electrically connected to the first energy storage system 10. When the first energy storage system 10 is depleted of electrical energy, the second energy storage system 20 can charge the first energy storage system 10, thereby replenishing the first energy storage system 10 with electrical energy. During the replenishment process, a current will also be generated in the second charging circuit accordingly.

[0032] The first energy storage system 10 and the second energy storage system 20 are interlocked via an industrial bus communication system, ensuring that only one of them can release electrical energy at any given time. Specifically, when the first energy storage system 10 charges the second energy storage system 20, it is in a state of releasing electrical energy, while the second energy storage system 20 is in a state of charging, until the first energy storage system 10 is completely depleted. Then, the second energy storage system 20 transitions from a charging state to a state of releasing electrical energy, and the first energy storage system 10 transitions from a state of releasing electrical energy to a state of charging, meaning the second energy storage system 20 begins charging the first energy storage system 10, until the second energy storage system 20 is completely depleted. This cycle repeats, allowing energy transfer between the first and second energy storage systems.

[0033] The electrolysis / electroplating tank 30 is connected in series with the first and second charging circuits, so that the current in the first and second charging circuits can be used for electrolysis / electroplating during the energy transfer process. The electrolysis / electroplating tank 30 includes multiple plating elements 31 connected in parallel, which helps to improve the efficiency of electrolysis / electroplating. The specific number of plating elements 31 is not limited here.

[0034] In one embodiment of the invention, internal energy transfer is performed through two sets of energy storage systems, generating current during the energy transfer process. This current can then be used for electrolysis / electroplating operations. It is important to understand that the energy consumption for internal energy transfer through the two sets of energy storage systems consists of heat loss and charging efficiency loss. The electrolysis and electroplating processes are merely energy conduction processes. Therefore, maintaining the operating condition of the circulating power storage system only requires replenishing the energy consumed by the two sets of energy storage systems during internal energy transfer (i.e., heat loss and charging / discharging efficiency loss). Compared to traditional electroplating and electrolysis production, this significantly improves the efficiency of electrical energy use, thereby drastically reducing energy costs in the electrolysis and electroplating industries by up to 85%. The original electrolysis and electroplating work can be completed using only 15% of the original energy.

[0035] In the above embodiments, the first energy storage system 10 includes: a first PCS (power conversion system) energy storage power supply 11, a first DC voltage regulator and current limiter 12, and a first DC unidirectional rectifier bridge 13; the second energy storage system 20 includes: a second PCS energy storage power supply 21, a second DC voltage regulator and current limiter 22, and a second DC unidirectional rectifier bridge 23. Both the first PCS energy storage power supply 11 and the second PCS energy storage power supply 21 can be equivalent to an inverter plus a rechargeable battery structure, used to store or release electrical energy. The first DC voltage regulator and current limiter 12 and the second DC voltage regulator and current limiter 22 are mainly used to adjust the DC voltage. Because the output voltage of the first PCS energy storage power supply 11 and the second PCS energy storage power supply 21 is relatively high, approximately 500–900V, it is necessary to use the first DC voltage regulator and current limiter 12 and the second DC voltage regulator and current limiter 22 to stabilize the voltage within a specific range, for example: 0–500V. The first DC unidirectional rectifier bridge 13 and the second DC unidirectional rectifier bridge 23 are used to ensure that the current can only flow in one direction, which can be equivalent to the function of a diode. They are used to ensure the DC unidirectional output working conditions in the electrolysis / electroplating tank 30. At the same time, in this embodiment of the invention, the current flow direction of the first DC unidirectional rectifier bridge 13 is opposite to the current flow direction of the second DC unidirectional rectifier bridge 23.

[0036] In specific connection, the first PCS energy storage power supply 11 is connected to the first DC voltage regulator and current limiter 12, and the second PCS energy storage power supply 21 is connected to the second DC voltage regulator and current limiter 22; the first DC voltage regulator and current limiter 12 is connected in series with the first DC unidirectional rectifier bridge 13 and the electrolysis / electroplating tank 30, and is electrically connected to the second DC voltage regulator and current limiter 22 to form the first charging circuit (refer to...). Figure 2 (As indicated by the single arrow in the diagram). Similarly, the second DC voltage regulator and current limiter 22 is connected in series with the second DC unidirectional rectifier bridge 23 and the electrolysis / electroplating tank 30, and is electrically connected to the first DC voltage regulator and current limiter 12 to form a second charging circuit (see reference). Figure 3 (As indicated by the double arrow in the middle).

[0037] In the above embodiments, the voltage of the first energy storage system 10 and / or the second energy storage system 20 is continuously adjustable within a first range, specifically, the voltage adjustment range is 0 to 100V; the current of the first energy storage system 10 and / or the second energy storage system 20 is continuously adjustable within a second range, specifically, the current adjustment range is 0 to 50000A. Therefore, appropriate voltage and current can be selected for electrolysis / electroplating operations depending on the electrolysis / electroplating tank 30, thereby improving the applicability of the entire circulating power energy storage system.

[0038] In the above embodiments, the cyclic power storage system further includes a charging system 40. Specifically, the charging system includes at least a transformer 41 and a charger 42. The input terminal of the charger 42 is connected to the power grid 50 through the transformer 41, and the output terminal of the charger 42 is connected to the first energy storage system 10 and / or the second energy storage system 20 to replenish the first energy storage system 10 and / or the second energy storage system 20 with electrical energy. In specific use, high-voltage electricity is provided by the power grid 50, stepped down by the transformer 41, and then transmitted to the charger 42. The charger 42 then replenishes the first energy storage system 10 and / or the second energy storage system 20 with electrical energy. The charger 42 can replenish electrical energy for only one energy storage system or simultaneously for both energy storage systems, depending on actual needs. Thus, by continuously replenishing electrical energy, the entire cyclic power storage system can operate continuously to achieve continuous production. It is understood that the charging system 40 in this embodiment of the invention is only one implementation method. In other embodiments, the specific structure of the charging system 40 can be adapted as needed, and no specific limitation is made here.

[0039] like Figure 4 As shown, in the above embodiment, the cyclic power storage system also includes a circuit control system 60, which is electrically connected to the first energy storage system 10 and the second energy storage system 20. The control system can precisely control the first energy storage system 10 or the second energy storage system 20 to charge or discharge, ensuring the smooth operation of the entire system.

[0040] In summary, this embodiment of the invention pre-stores a certain amount of electrical energy in the first energy storage system 10 and the second energy storage system 20. Internal energy transfer is performed through the two energy storage systems. During the energy transfer process, the electrolysis / electroplating tank 30 is connected in series in the energy transfer circuit to realize the electroplating process or the electrolytic refining process. This reduces energy loss, requiring only the replenishment of energy consumed by the two energy storage systems during internal energy transfer (i.e., heat loss and energy loss due to charging and discharging efficiency). Consequently, the efficiency of electrical energy utilization is significantly improved, and the energy consumption cost in the electrolysis and electroplating industries is significantly reduced, by up to 85%. The original electrolysis and electroplating work can be completed using only 15% of the original energy.

[0041] The above provides a detailed description of the circulating power storage system for electrolysis / electroplating provided by this invention. Any obvious modifications made by those skilled in the art without departing from the essence of this invention will constitute an infringement of the patent rights of this invention and will incur corresponding legal liability.

Claims

1. A circulating power storage system for electrolysis / electroplating, characterized in that... include: First energy storage system, second energy storage system, and electrolytic / electroplating tank; The first energy storage system includes: a first PCS energy storage power supply, a first DC voltage regulator and current limiter, and a first DC unidirectional rectifier bridge; the second energy storage system includes: a second PCS energy storage power supply, a second DC voltage regulator and current limiter, and a second DC unidirectional rectifier bridge; The first PCS energy storage power supply is connected to the first DC voltage regulator and current limiter, and the second PCS energy storage power supply is connected to the second DC voltage regulator and current limiter; the first DC voltage regulator and current limiter are connected in series with the first DC unidirectional rectifier bridge and the electrolysis / electroplating tank, and are electrically connected to the second DC voltage regulator and current limiter to form a first charging circuit; the first energy storage system is electrically connected to the second energy storage system through the first charging circuit, so that when the second energy storage system is depleted, the first energy storage system can charge the second energy storage system. The second DC voltage regulator and current limiter are connected in series with the second DC unidirectional rectifier bridge and the electrolysis / electroplating tank, and are electrically connected to the first DC voltage regulator and current limiter to form a second charging circuit; the second energy storage system is electrically connected to the first energy storage system through the second charging circuit so that when the first energy storage system is depleted, the second energy storage system can charge the first energy storage system. The first energy storage system and the second energy storage system are interlocked via industrial bus communication so that only one of the first energy storage system and the second energy storage system can release electrical energy at any given time. The electrolytic / electroplating tank is connected in series with the first charging circuit and the second charging circuit; The circulating power storage system further includes a charging system, which is connected to the first energy storage system and / or the second energy storage system to replenish the first energy storage system and / or the second energy storage system with electrical energy.

2. The circulating power storage system as described in claim 1, characterized in that, The charging system includes at least a transformer and a charger. The input terminal of the charger is connected to the power grid through the transformer, and the output terminal of the charger is connected to the first energy storage system and / or the second energy storage system to replenish electrical energy to the first energy storage system and / or the second energy storage system.

3. The circulating power storage system as described in claim 2, characterized in that, The electrolytic / electroplating tank includes multiple plating components connected in parallel.

4. The circulating power storage system as described in claim 1, characterized in that, The voltage of the first energy storage system and / or the second energy storage system is continuously adjustable within a first range, and the current of the first energy storage system and / or the second energy storage system is continuously adjustable within a second range.

5. The circulating power storage system as described in claim 1, characterized in that, The current flow direction of the first DC unidirectional rectifier bridge is opposite to that of the second DC unidirectional rectifier bridge.

6. The circulating power storage system as described in claim 1, characterized in that... It also includes a circuit control system, which is electrically connected to the first energy storage system and the second energy storage system to control the first energy storage system or the second energy storage system to charge or discharge.

Images