Self-circulation type energy storage electroplating machine

Abstract

The application discloses a self-circulation energy storage electroplating machine, which is characterized in that the self-circulation energy storage electroplating machine comprises a first battery pack, a second battery pack, a bidirectional voltage reduction charging circuit, a full-bridge rectifier circuit and an electrolytic electroplating tank; the battery models and specifications in the first battery pack and the second battery pack are the same; the electrolytic electroplating tank is connected to the positive connection line of the two battery packs in the same specification battery pack charging condition; through the charging mode of one battery pack to another battery pack, the charging current generated drives the plating layer charge in the electrolytic tank connected to the positive connection line of the two battery packs to move to the negative plating part to form a plating layer.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electrolytic plating, and particularly relates to a self-circulation type energy storage plating machine. BACKGROUND

[0002] At present, the electrolysis and electroplating industries are energy-consuming industries. Small electroplating plants need hundreds of thousands or even millions of electricity expenses every month, and large similar enterprises need hundreds of millions of electricity expenses every year. The reason is that electrolysis and electroplating are both processes of driving metal ions to move directionally to the negative electrode under the current, and the metal ions are reduced into metal atoms to form a plating layer or a metal body after absorbing electrons. The amount of electric charge of metal ions is proportional to the current, and the larger the amount of electric charge, the larger the amount of current required. Large current energy consumption conditions are required, such as the working current of some electroplating equipment is 50,000 A.

[0003] The causes of energy consumption in the electrolysis and electroplating industries at present are as follows:

[0004] 1. Large current energy consumption conditions require matching large power transformers, such as 2500kVA transformers, 3 to 5 units, and the no-load loss of a single machine is 10%-15%, and the no-load ratio is too large and cannot be avoided.

[0005] 2. The working voltage in the electrolysis process is very low, such as the working voltage of electrolytic lead is only 1.7V, and the working current is 500A. The transformer under such conditions is close to short-circuit working conditions, and the heat loss is too large. The no-load power is close to 30%

[0006] 3. Too many impurities in the electrolyte cause efficiency to decrease, and energy consumption loss to be too large.

[0007] In order to improve the energy consumption problem of the electrolysis and electroplating industries at present, a new type of electroplating device is urgently needed. SUMMARY

[0008] The purpose of the present application is to overcome the problems of the prior art, and to provide a self-circulation type energy storage plating machine. The same specification battery pack is used to form a mutual charging condition, and the electrolytic plating tank is connected to the positive connection line of the two groups of batteries. The charging current generated by charging one group of batteries to another group of batteries drives the plating layer charge in the electrolytic tank connected to the positive connection line of the two groups of batteries to move to the negative electrode to form a plating layer.

[0009] The purpose of the present application is achieved by the following technical solutions:

[0010] The application discloses a self-circulation energy storage electroplating machine, which comprises a first battery pack, a second battery pack, a bidirectional voltage reduction charging circuit, a full-bridge rectifier circuit and an electrolytic electroplating tank.

[0011] According to a preferred embodiment, the first battery pack and the second battery pack are of the same type and specification.

[0012] According to a preferred embodiment, the first battery pack comprises A1 batteries and A2 batteries, and the second battery pack comprises B1 batteries and B2 batteries.

[0013] According to a preferred embodiment, when the first battery pack charges the second battery pack, the A1 batteries and the A2 batteries in the first battery pack are connected in series to the bidirectional voltage reduction charging circuit, and the B1 batteries or the B2 batteries in the second battery pack are connected to the bidirectional voltage reduction charging circuit.

[0014] According to one preferred embodiment, when the second battery pack charges the first battery pack, the A1 battery or the A2 battery in the first battery pack is connected in series to the bidirectional step-down charging circuit; the B1 battery and the B2 battery in the second battery pack are connected in series to the bidirectional step-down charging circuit.

[0015] According to one preferred embodiment, the self-circulation energy storage electroplating machine further comprises a charger configured as a backup power source when the first battery pack charges the second battery pack or when the second battery pack charges the first battery pack.

[0016] According to one preferred embodiment, the input voltage of the charger is 380V industrial voltage, and the output voltage of the charger matches the voltage of the first battery pack or the second battery pack as the charging power source.

[0017] The aforementioned main scheme of the present application and each further selected scheme can be freely combined to form multiple schemes, all of which are the schemes that can be adopted and claimed by the present application. Those skilled in the art can understand that there are multiple combinations according to the prior art and common knowledge after understanding the schemes of the present application, all of which are the technical schemes claimed by the present application, and are not listed here.

[0018] Advantages of the present application: the self-circulation energy storage electroplating machine of the present application uses the same specification battery pack to charge each other, the ion transfer amount in the discharged battery is the same as the ion transfer amount in the charged battery; the plating layer ions in the electrolytic plating tank are also the same; it is beneficial to the energy conversion condition between the batteries, can improve the efficiency of electrical energy use, at the same time reduce the power demand condition of the equipment, reduce the no-load loss of the transformer. Using 4 groups of the same specification battery pack to form the mutual charging condition, the electrolytic plating tank is connected to the positive connection line of the two groups of batteries; through the charging method of one group of battery to another group of battery, the charging current generated drives the plating layer charge in the electrolytic tank connected to the positive connection line of the two groups of batteries to move to the negative part to form a plating layer.

[0019] The self-circulation energy storage electroplating machine of the present application changes the one-time performance consumption working mode in the existing electrolytic plating production technology into the mode of storing electrical energy in the energy storage device and using it multiple times, greatly reduces the energy consumption of electrolytic plating production, and meets the social needs of energy saving and carbon emission reduction. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the assembly drawing of the self-circulation energy storage electroplating machine of the present application;

[0021] Figure 2 is the bidirectional step-down charging circuit diagram of the self-circulation energy storage electroplating machine of the present application;

[0022] Figure 3 is the self-circulation energy storage electroplating machine based on the bidirectional step-down charging circuit in the embodiment of the present application; Figure 1Figure 2 is a circuit diagram of the first battery pack charging the B1 battery in the second battery pack according to the embodiment of the present application;

[0023] Figure 4 Figure 3 is a circuit diagram of the first battery pack charging the B2 battery in the second battery pack according to the embodiment of the present application; Figure 1

[0024] Figure 5 Figure 4 is a circuit diagram of the second battery pack charging the A1 battery in the first battery pack according to the embodiment of the present application; Figure 1

[0025] Figure 6 Figure 5 is a circuit diagram of the second battery pack charging the A2 battery in the first battery pack according to the embodiment of the present application; Figure 1

[0026] Wherein, 15 - charger, 16 - first MOS tube, 17 - inductor, 18 - second MOS tube, 19 - first diode, 20 - second diode, 21 - first thyristor, 22 - second thyristor, 23 - third thyristor, 24 - fourth thyristor, 25 - negative plate, 26 - positive plate, 27 - A1 battery, 28 - A2 battery, 29 - B1 battery, 30 - B2 battery, 31 - first connection contactor K1, 32 - second connection contactor K2, 33 - third connection contactor K3, 34 - fourth connection contactor K4, 35 - fifth connection contactor, 36 - sixth connection contactor, 37 - terminal. DETAILED DESCRIPTION

[0027] It should be noted that similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0029] ​​​In addition, the terms "horizontal", "vertical", "overhang" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0030] In the description of the present application, it should be further pointed out that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] Embodiment 1:

[0032] Reference Figures 1 to 6 As shown in the figure, the present application discloses a self-circulation energy storage electroplating machine. The self-circulation energy storage electroplating machine comprises a first battery pack, a second battery pack, a bidirectional step-down charging circuit, a full-bridge rectifier circuit and an electrolytic electroplating tank. The first battery pack and the second battery pack are used to realize mutual circulation storage of electric energy. The bidirectional step-down charging circuit is used to realize charging of the first battery pack to the second battery pack, or charging of the second battery pack to the first battery pack. The full-bridge rectifier circuit is used to ensure that the current direction in the electrolytic electroplating tank does not change under forward current conditions and under reverse current conditions. The electrolytic electroplating tank is used to realize electroplating operation.

[0033] The self-circulation energy storage electroplating machine of the present application further comprises a charger 15, which is configured as a backup charging power supply when the first battery pack charges the second battery pack or the second battery pack charges the first battery pack.

[0034] Specifically, the input voltage of the charger 15 is 380V industrial voltage, and the output voltage of the charger 15 matches the voltage of the first battery pack or the second battery pack as a charging power supply.

[0035] Preferably, the battery models and specifications in the first battery pack and the second battery pack are the same. Specifically, in the present embodiment, the first battery pack comprises A1 battery 27 and A2 battery 28, and the second battery pack comprises B1 battery 29 and B2 battery 30. The specifications and models of the A1 battery 27, the A2 battery 28, the B1 battery 29 and the B2 battery 30 are the same.

[0036] In the drawings, BAT-A1, BAT-A2, BAT-B1 and BAT-B2 are four groups of energy storage batteries with the same specifications, which are divided into two groups, namely, a first battery group and a second battery group. The first battery group is also referred to as group A, which is combined by BAT-A1 and BAT-A2. The second battery group is also referred to as group B, which is combined by BAT-B1 and BAT-B2. Lithium ion batteries are used as the matching condition in this embodiment.

[0037] Preferably, with reference to Figure 2 As shown in the figure, the bidirectional voltage reduction charging circuit includes a terminal C, a terminal D, a terminal E and a terminal F.

[0038] The first MOS tube 16, the inductor 17 and the second MOS tube 18 are connected in series between the terminal C and the terminal F. The terminal E or the terminal F is connected to the source of the first MOS tube 16 and the inductor 17 through the first diode 19. The terminal E or the terminal F is connected to the source of the second MOS tube 18 and the inductor 17 through the second diode 20. The first MOS tube 16 and the second MOS tube 18 are connected to the control circuit respectively. The control circuit is used to realize the driving control of the first MOS tube 16 and the second MOS tube 18.

[0039] Further, the first MOS tube 16 and the second MOS tube 18 are respectively connected in parallel with the first unidirectional discharge diode and the second unidirectional discharge diode. The source of the first MOS tube 16 is connected to the positive electrode of the first unidirectional discharge diode. The drain of the first MOS tube 16 is connected to the negative electrode of the first unidirectional discharge diode. The source of the second MOS tube 18 is connected to the positive electrode of the second unidirectional discharge diode. The drain of the second MOS tube 18 is connected to the negative electrode of the first unidirectional discharge diode.

[0040] The first MOS tube 16, i.e., Q3 in the figure, is a large power type, which realizes the channel enhancement type field effect management and is used for charge driving. The second MOS tube 18, i.e., Q4 in the figure, is a large power type, which realizes the channel enhancement type field effect management and is used for charge driving. The inductor 17, i.e., L in the figure, is an inductor, which realizes the power and device setting power matching and is used for limiting the transmission current flow value.

[0041] The first diode 19, i.e., D1 in the figure, is a large power diode, which is used for releasing the induced electric energy in the inductor 17. The second diode 20, i.e., D2 in the figure, is a large power diode, which is used for releasing the induced electric energy in the inductor 17.

[0042] Preferably, the full-bridge rectifier circuit includes a first thyristor 21, a second thyristor 22, a third thyristor 23 and a fourth thyristor 24.

[0043] The anode of the first thyristor 21 is connected with the cathode of the second thyristor 22. The anode of the third thyristor 23 is connected with the cathode of the fourth thyristor 24.

[0044] The cathodes of the first and third thyristors 21 and 23 are connected with a plurality of positive plates 26 in parallel in the electrolytic plating tank respectively, and the anodes of the second and fourth thyristors 22 and 24 are connected with a plurality of negative plates in parallel in the electrolytic plating tank respectively.

[0045] That is, D3, D4, D5 and D6 in the figure are full-bridge rectifier circuits of four thyristor groups, which are used to ensure that the current direction in the electrolytic plating tank does not change under the conditions of forward current and reverse current.

[0046] Preferably, the positive pole of the first battery group is connected with the terminal C of the bidirectional step-down charging circuit, and the negative pole of the first battery group is connected with the terminal E of the bidirectional step-down charging circuit. The negative pole of the second battery group is connected with the terminal F of the bidirectional step-down charging circuit, and the positive pole of the second battery group is connected with the circuit between the third thyristor 23 and the fourth thyristor 24. The terminal D of the bidirectional step-down charging circuit is connected with the circuit between the first thyristor 21 and the second thyristor 22.

[0047] The self-circulation type energy storage plating machine includes two working modes.

[0048] 1: When the first battery group charges the second battery group, as shown in Figure 3 and Figure 4 The A1 battery 27 and the A2 battery 28 in the first battery group are connected in series with the bidirectional step-down charging circuit. The B1 battery 29 or the B2 battery 30 in the second battery group is connected with the bidirectional step-down charging circuit. The first battery group charges a certain battery in the second battery group through the bidirectional step-down charging circuit. The insufficient electric energy is supplemented from the charger connected with the power grid; this step-down charging mode can protect the work of each transferred electric charge. Thus, the generated charging current drives the plating layer charge in the electrolytic tank connected with the positive pole of the two groups of batteries to move to the negative pole plating piece to form a plating layer, and the plating work is completed.

[0049] 2: When the second battery group charges the first battery group, as shown in Figure 5 and Figure 6The A1 battery 27 or the A2 battery 28 in the first battery group is connected in series to the bidirectional voltage reduction charging circuit; the B1 battery 29 and the B2 battery 30 in the second battery group are connected in series to the bidirectional voltage reduction charging circuit. The second battery group charges a certain battery in the first battery group through the bidirectional voltage reduction charging circuit. The insufficient electric energy is supplemented from the charger connected with the power grid; the voltage reduction charging mode can protect the electric charge of each transfer. Therefore, the generated charging current drives the plating layer charge in the electrolytic cell connected in series to the positive connection line of the two battery groups to move to the negative plating piece to form a plating layer, and the electroplating work is completed.

[0050] That is, the self-circulation energy storage electroplating machine uses the same specification battery group to charge each other, and the ion transfer amount in the discharged battery and the ion transfer amount in the charged battery are the same; the plating layer ions in the electrolytic plating cell connected in series are also the same; the energy conversion conditions between the batteries are beneficial, the electric energy use efficiency can be improved, the power demand conditions of the equipment are reduced, and the transformer reactive power loss is reduced. Four groups of the same specification battery groups are used to charge each other, and the electrolytic plating cell is connected in series to the positive connection line of the two battery groups; through the charging mode of one group of batteries to another group of batteries, the generated charging current drives the plating layer charge in the electrolytic cell connected in series to the positive connection line of the two battery groups to move to the negative plating piece to form a plating layer.

[0051] The self-circulation energy storage electroplating machine changes the one-time performance consumption working mode in the existing electrolytic plating production technology into the electric energy storage in the energy storage device and multiple utilization mode, greatly reduces the electrolytic plating production energy consumption, and meets the social needs of energy saving and carbon emission reduction.

[0052] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A self-circulating energy storage electroplating machine, characterized in that: The self-circulating energy storage electroplating machine includes a first battery pack, a second battery pack, a bidirectional step-down charging circuit, a full-bridge rectifier circuit and an electrolytic plating tank; The bidirectional step-down charging circuit comprises: a wiring terminal C, a wiring terminal D, a wiring terminal E and a wiring terminal F, wherein a first MOS transistor (16), an inductor (17) and a second MOS transistor (18) are sequentially connected in series between the wiring terminal C and the wiring terminal F, the wiring terminal E or the wiring terminal F is connected between the source of the first MOS transistor (16) and the inductor (17) via a first diode (19), the wiring terminal E or the wiring terminal F is connected between the inductor (17) and the source of the second MOS transistor via a second diode (20), and the first MOS transistor (16) and the second MOS transistor (18) are respectively connected to a control circuit; The first MOS tube (16) and the second MOS tube (18) are further connected in parallel with a first unidirectional discharge diode and a second unidirectional discharge diode, respectively, wherein the source of the first MOS tube (16) is connected to the positive electrode of the first unidirectional discharge diode, the drain of the first MOS tube (16) is connected to the negative electrode of the first unidirectional discharge diode, the source of the second MOS tube (18) is connected to the positive electrode of the second unidirectional discharge diode, and the drain of the second MOS tube (18) is connected to the negative electrode of the first unidirectional discharge diode. The full-bridge rectifier circuit comprises a first thyristor (21), a second thyristor (22), a third thyristor (23) and a fourth thyristor (24), wherein the anode of the first thyristor (21) is connected to the cathode of the second thyristor (22); the anode of the third thyristor (23) is connected to the cathode of the fourth thyristor (24); and the cathodes of the first thyristor (21) and the third thyristor (23) are respectively connected to a plurality of parallel positive plates (26) in the electrolytic plating tank, and the anodes of the second thyristor (22) and the fourth thyristor (24) are respectively connected to a plurality of parallel negative plates (26) in the electrolytic plating tank; The positive electrode of the first battery pack is connected to the connection terminal C of the bidirectional buck charging circuit, the negative electrode of the first battery pack is connected to the connection terminal E of the bidirectional buck charging circuit, the negative electrode of the second battery pack is connected to the connection terminal F of the bidirectional buck charging circuit, the positive electrode of the second battery pack is connected to the line between the third thyristor (23) and the fourth thyristor (24), and the connection terminal D of the bidirectional buck charging circuit is connected to the line between the first thyristor (21) and the second thyristor (22); The battery models and specifications of the first battery group and the second battery group are the same; the first battery group includes an A1 battery (27) and an A2 battery (28), and the second battery group includes a B1 battery (29) and a B2 battery (30); When the first battery group charges the second battery group, the A1 battery (27) and the A2 battery (28) in the first battery group are connected in series to the bidirectional step-down charging circuit; the B1 battery (29) or the B2 battery (30) in the second battery group is connected to the bidirectional step-down charging circuit; the first battery group charges the batteries in the second battery group via the bidirectional step-down charging circuit, and insufficient electric energy is supplemented by a charger connected to the power grid; thereby, the generated charging current drives the plating charge in the electrolytic cell on the positive electrode connecting line of the two battery groups to move to the negative electrode plating piece to form a plating layer, completing the electroplating operation; When the second battery group charges the first battery group, the A1 battery (27) or the A2 battery (28) in the first battery group is connected in series to the bidirectional step-down charging circuit; the B1 battery (29) and the B2 battery (30) in the second battery group are connected in series to the bidirectional step-down charging circuit; the second battery group charges the batteries in the first battery group via the bidirectional step-down charging circuit, and insufficient electric energy is supplemented by a charger connected to the power grid; thereby, the generated charging current drives the plating charge in the electrolytic cell on the positive electrode connecting line connected in series with the two battery groups to move to the negative electrode plating piece to form a plating layer, completing the electroplating operation.

2. The self-circulating energy storage electroplating machine according to claim 1, characterized in that: The self-circulating energy storage electroplating machine further comprises a charger (15), The charger (15) is configured as a backup charging power source when the first battery pack charges the second battery pack or when the second battery pack charges the first battery pack.

3. The self-circulating energy storage electroplating machine according to claim 2, characterized in that: The input voltage of the charger (15) is 380V industrial voltage, and the output voltage of the charger (15) matches the voltage of the first battery pack or the second battery pack serving as a charging power source.

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