Electrolysis device, electrolysis system, and electrolysis method in which energy is supplied by AC induction

Abstract

An embodiment of the present invention provides an electrolysis device, an electrolysis system, and an electrolysis method in which energy is supplied by AC induction. The electrolysis device includes at least one set of a magnetic circuit and an electrolytic cell, the magnetic circuit including a magnetic core wound with an electromagnetic coil, the magnetic core being provided outside the electrolytic cell, the magnetic circuit using an AC power source to generate a rotating magnetic field surrounding the electrolytic cell, the rotating magnetic field acting on an electrolyte in the electrolytic cell to generate an induced DC current, and electrolyze the electrolyte. The electrolysis device omits the AC / DC conversion process by directly generating an induced DC current in the electrolytic cell using an AC current, thereby reducing energy loss due to energy conversion.

Description

Detailed Description of the Invention

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims the benefit of Chinese Patent Application No. 202111267982.7, filed on October 29, 2021, the contents of which are incorporated herein by reference.

[0002] [Technical field] The present invention relates to the field of electrochemistry, and in particular to an electrolysis device, an electrolysis system and an electrolysis method powered by alternating current induction.

[0003] [Background technology] Electrolysis is a process in which an electric current flows through an electrolyte solution or molten electrolyte (collectively referred to as "electrolyte"), which undergoes oxidation-reduction reactions at the cathode and anode to prepare the desired product. Electrolysis is widely used in industries such as chlor-alkali industry, metal smelting, and electrochemical energy storage, and hydrogen production from renewable energy power generation - water electrolysis will be the main hydrogen energy source in the future.

[0004] In the prior art, the power source used for electrolysis was a low-voltage, high-current DC power source, but the use of a high-current DC power source generates large resistance losses and magnetic fields. Existing power grids are generally AC power grids, which provide three-phase sinusoidal AC current (without considering harmonic pollution, etc.). When using AC power, the electrolysis device needs to step down and rectify the high-voltage AC power source to DC current using a transformer and rectifier before it is used for electrolysis. Therefore, existing electrolysis technologies have the disadvantages of increasing the equipment cost of the rectifier and causing excessive energy loss during the energy conversion process.

[0005] Summary of the Invention [Problem to be solved by the invention] An object of the embodiments of the present invention is to provide an electrolysis device, an electrolysis system, and an electrolysis method in which energy is supplied by AC induction, in which an AC power source forms a magnetic field using an electromagnetic coil and a magnetic core, and generates an induced current in an electrolytic cell, thereby eliminating the AC / DC conversion process and reducing energy loss due to energy conversion.

[0006] [Means for solving the problems] In order to achieve the above object, an embodiment of the present invention comprises: 1. An electrolysis device powered by AC induction, comprising: At least one magnetic circuit and an electrolytic cell; the magnetic circuit includes a magnetic core around which an electromagnetic coil is wound, the magnetic core being provided outside the electrolytic cell; The magnetic circuit is used to generate a rotating magnetic field surrounding the electrolytic cell using an AC power source, and the rotating magnetic field acts on the electrolyte in the electrolytic cell to generate an induced DC current and electrolyze the electrolyte.

[0007] Optionally, a pole shoe pair is connected to the upper and lower ends of the magnetic core to match the electrolytic cell; The relative movement between the magnetic field between the pole shoe pair and the electrolyte in the electrolytic cell cuts the magnetic field lines, and the direction of the magnetic field lines is not parallel to the tangent direction of the movement of the rotating magnetic field, and neither the direction of the magnetic field lines nor the tangent direction of the movement of the rotating magnetic field are perpendicular to the plane of the separator of the electrolytic cell.

[0008] Optionally, the AC power source is a polyphase sinusoidal AC current, and the magnetic circuit includes m*n pairs of magnetic cores, where m is the number of phases of the AC power source and n is an integer less than or equal to 1.

[0009] Optionally, the AC power source is a three-phase sinusoidal AC current, the magnetic circuit includes 3n pairs of magnetic cores, phase lines of the three-phase sinusoidal AC current are connected to one end of an electromagnetic coil, and the connection method of the electromagnetic coil is star connection or delta connection.

[0010] Optionally, the electrolytic cell is a ring cell; The electrolytic cell includes an electrolytic cell separator, a discharge line for electrolysis products, and a refill line for electrolyte, and the electrolytic cell separator is used to partition the electrolyte into catholyte and anolyte.

[0011] Optionally, the catholyte and anolyte are provided with a cathode plate and an anode plate, respectively, with a short circuit between the cathode plate and the anode plate.

[0012] Optionally, said electrolytic cell comprises a plurality of sub-cavities independent of one another, said plurality of sub-cavities being arranged in an annular shape.

[0013] Optionally, any of said sub-cavities are provided with an electrolytic cell separator, a cathode plate, and an anode plate.

[0014] Optionally, the control unit includes a monitoring assembly and a processing unit, wherein the monitoring assembly is used for monitoring an electrolysis rate of an electrolyte, and the processing unit is used for controlling a current of the electromagnetic coil according to the electrolysis rate of an electrolyte, adjusting a magnetic inductance of the rotating magnetic field by controlling the current of the electromagnetic coil, controlling a frequency of the current of the electromagnetic coil according to the electrolysis rate of an electrolyte, and controlling a rotation speed of the rotating magnetic field.

[0015] In another aspect, the present invention provides an AC induction-powered electrolysis system comprising an AC power source and an AC induction-powered electrolysis apparatus as described above.

[0016] In another aspect, the present invention provides a method for producing a composition comprising: It uses an electrolysis system powered by the AC induction mentioned above. The present invention provides an electrolysis method in which energy is supplied by AC induction, the method including the steps of connecting the AC power supply and the magnetic circuit, generating a rotating magnetic field surrounding the electrolytic cell by the magnetic circuit, and causing the rotating magnetic field to act on an electrolyte in the electrolytic cell to generate an induced direct current and electrolyze the electrolyte.

[0017] [Effects of the Invention] The electrolysis device of the present invention, in which energy is supplied by AC induction, includes at least one magnetic circuit and an electrolytic cell, the magnetic circuit including a magnetic core wound with an electromagnetic coil, the magnetic core being provided outside the electrolytic cell, the magnetic circuit using an AC power source to generate a rotating magnetic field surrounding the electrolytic cell, the rotating magnetic field acting on an electrolyte in the electrolytic cell to generate an induced DC current and electrolyze the electrolyte. The electrolysis device directly generates an induced DC current in the electrolytic cell by an AC current, and directly performs the electrolysis process, thereby reducing energy loss due to AC-DC rectification.

[0018] Other features and advantages of the embodiments of the present invention will be described in detail in the specific embodiment section below.

[0019] BRIEF DESCRIPTION OF THE DRAWINGS The drawings are intended to provide a further understanding of the embodiments of the invention, constitute a part of the specification, and, together with the following detailed description, are used to explain the embodiments of the invention but are not intended to limit the embodiments of the invention. FIG. 1 is a structural schematic diagram of an electrolysis device in accordance with the present invention, in which energy is supplied by AC induction.

[0020] FIG. 2 is a schematic diagram of a single-sided profile induced electromotive force of an AC induction-energized electrolysis device according to the present invention.

[0021] FIG. 3 is a schematic plan view of the induced electromotive force in an electrolytic cell of an electrolysis device to which energy is supplied by AC induction according to the present invention.

[0022] FIG. 4 is a schematic diagram of a connection between a three-phase AC power source and a star-connected electromagnetic coil according to the present invention.

[0023] FIG. 5 is a schematic diagram of the layout of multiple sub-cavities of an electrolysis device energized by AC induction according to the present invention.

[0024] FIG. 6 is a schematic diagram showing a single-phase AC power supply according to the present invention when it is connected to a star-connected electromagnetic coil subjected to capacitive phase splitting.

[0025] [Mode for carrying out the invention] Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. Note that the specific embodiments described in this specification are for explaining and interpreting the examples of the present invention, and are not intended to limit the examples of the present invention.

[0026] In conventional technology, the operating principle of an electrolytic cell is generally to use an AC power source and a rectifier to supply DC to two electrode plates in the electrolytic cell, generating a potential and current between the electrolytes on both sides of the electrolytic cell separator to drive the movement of ions and electrolyze the electrolyte. However, in conventional technology, the structure of the electrolytic device is complex and consumes a lot of energy.

[0027] In order to solve the above problems, the present invention proposes an electrolysis device in which energy is supplied by AC induction. FIG. 1 is a structural schematic diagram of the electrolysis device in which energy is supplied by AC induction of the present invention. As shown in FIG. 1, the electrolysis device in which energy is supplied by AC induction includes at least one set of magnetic circuit and an electrolysis cell, and the magnetic circuit is preferably a magnetic core magnetic circuit 11. The magnetic circuit includes a magnetic core 102 wound with an electromagnetic coil 101, and the magnetic core 102 is provided outside the electrolysis cell, and the preferred electrolysis cell is a ring-shaped electrolysis cell 13. In use, the electromagnetic coil 101 is connected to an AC power source, and the magnetic circuit uses the AC power source to generate a rotating magnetic field surrounding the electrolysis cell, and the rotating magnetic field acts on the electrolyte in the electrolysis cell to generate an induced DC current and electrolyze the electrolyte. The electrolysis device of the present invention does not require a DC power source, and directly uses the AC power source 13 to generate an induced DC potential and current in the electrolyte in the electrolysis cell, thereby electrolyzing the electrolyte.

[0028] The electrolytic cell is an annular electrolytic cell 12, which includes an electrolytic cell separator 121, a discharge line for electrolytic products, and a refill line for electrolyte, and the electrolytic cell separator 121 is used to separate the electrolyte into a cathode electrolyte and an anode electrolyte, and the cathode electrolyte and the anode electrolyte are provided with a cathode plate 122 and an anode plate 123, respectively, and the circuit between the cathode plate 122 and the anode plate 123 is short-circuited. Specifically, electrolyte is injected into the annular electrolytic cell 12. The annular electrolytic cell 12 includes an electrolytic cell separator 121, a discharge line for electrolytic products (not shown), and a refill line for electrolyte (not shown), and preferably the electrolytic cell separator is used to separate the annular electrolytic cell into an anode chamber in an inner ring and a cathode chamber in an outer ring.

[0029] The magnetic circuit 11 includes a plurality of magnetic cores 102 wound with electromagnetic coils 101, the magnetic cores 102 are provided outside the annular electrolytic cell 12, and a pole shoe pair (i.e., a first pole shoe 112 and a second pole shoe 113) that is compatible with the annular electrolytic cell 12 is connected to the upper and lower ends of the magnetic cores 102.

[0030] A pole shoe pair that fits the electrolytic cell is connected to the upper and lower ends of the magnetic core, and the AC power supply 13 is connected to the electromagnetic coil 101 and is used to generate a rotatable magnetic field between the pole shoe pair, which generates an induced DC current between the electrolyte on both sides of the electrolytic cell separator 121. Specifically, the magnetic field lines are cut by the relative movement between the magnetic field between the pole shoe pair and the electrolyte in the electrolytic cell, and the direction of the magnetic field lines is not parallel to the tangent direction of the movement of the rotating magnetic field, and neither the direction of the magnetic field lines nor the tangent direction of the movement of the rotating magnetic field are perpendicular to the plane of the separator of the electrolytic cell.

[0031] The magnetic circuit includes m*n pairs of magnetic cores, where m is the number of phases of the AC current, and n is an integer equal to or less than 1. Preferably, as shown in Fig. 4, the AC power source is a three-phase AC current, the magnetic circuit includes 3n pairs of magnetic cores, a phase line of the three-way AC power source is connected to one end of an electromagnetic coil, and the connection method of the electromagnetic coil is star connection or delta connection.

[0032] Specifically, referring to the principle of forming a rotating magnetic field (also called a rotating magnetic field) of a motor, a plurality of magnetic cores 102 wound with an electromagnetic coil 101 are provided outside the annular electrolytic cell 12, and when an AC power source 13 is turned on, a magnetic field (i.e., a rotating magnetic field) that rotates continuously with a circular trajectory is generated by the pole shoe pairs provided at the upper and lower ends of the annular electrolytic cell 12. Although the electrolyte in the annular electrolytic cell 12 itself is stationary, the magnetic field in which it exists is rotating, so that the continuously rotating magnetic field causes the electrolyte in the annular electrolytic cell 12 to move relative to the magnetic field between the pole shoe pairs, cutting the magnetic field lines. Thus, an induced direct current is generated in the electrolyte, and the electrolyte is electrolyzed. According to a preferred embodiment, the magnetic field lines are cut by the relative movement between the magnetic field between the pole shoe pairs and the electrolyte in the electrolytic cell, and the magnetic field lines and the tangent direction of the movement of the rotating magnetic field are perpendicular to each other, and both the magnetic field lines and the tangent of the movement of the rotating magnetic field are parallel to the electrolytic cell separator, thereby maximizing the induced electromotive force. To ensure the formation of an induced current, the cathode and anode of the electrolytic cell are short-circuited outside the magnetic field.

[0033] In practical use, as shown in FIG. 2, the cross section of the annular electrolytic cell 12 may be rectangular, or the cross section of the annular electrolytic cell 12 may be annular, and the electrolyte in the annular electrolytic cell 12 may be electrolytic water or ionic liquid electrolyte. The electrolyte in the annular electrolytic cell 12 is divided into a cathode chamber and an anode chamber by the electrolytic cell separator 121. The electrolytic cell separator 121 is arranged to match the pole shoe pair of the magnetic core magnetic circuit 11, that is, after the electrolytic cell separator 121 divides the annular electrolytic cell 12 into an anode chamber and a cathode chamber, one or more pairs of opposing pole shoes are located on the anode chamber side and the cathode chamber side, respectively, so that the magnetic field magnetic field lines between the pole shoe pair are cut by the electrolyte in the annular electrolytic cell 12 when the magnetic field rotates along the pole shoe pair.

[0034] Specifically, as shown in FIG. 3, when the magnetic field rotates along the pole shoe pair, the electrolyte in the annular electrolytic cell 12 moves with respect to the magnetic field (magnetic inductance B) between the pole shoe pair. If the movement is assumed to be perpendicular to the magnetic field lines and has a relative speed v, then since the electrolyte is conductive, an induced DC electric field E i occurs.

[0035]

number

[0036] Induction electric field E i As a result of this action, cations in the electrolyte move to the cathode and anions move to the anode, resulting in a current density J as follows:

[0037]

number

[0038] The electrolyte in the ring-shaped electrolytic cell 12 undergoes electrolytic reactions at the cathode and anode, respectively. The anode and cathode communicate with each other through the lead wires of an external circuit to form a current circuit, thereby avoiding voltage rise due to charge accumulation. Compared with the external DC power source in the prior art, the electric field in the embodiment of the present invention is induced in the electrolyte, while in the prior art, the electric field is applied externally by a DC power source.

[0039] In addition, in order to control the flow rate of the electrolyte replenisher, in the embodiment of the present invention, a pipeline booster pump is further provided in the electrolyte replenisher pipeline. As shown in Fig. 5, in the embodiment of the present invention, the cavity of the annular electrolytic cell 12 may be divided into a plurality of sub-cavities 201 independent of each other, and an electrolytic cell separator 121, a cathode plate 122, and an anode plate 123 are provided in each of the sub-cavities 201, so that each sub-cavity can function as an independent sub-electrolytic cell. Note that, in the embodiment of the present invention, the number and size of the sub-cavities are not particularly limited here, since they can be set by those skilled in the art according to need.

[0040] Furthermore, the embodiment of the present invention may further include a control unit, which includes a monitoring assembly (detecting electrolysis current shown by ammeter A in the figure) and a processing unit, where the monitoring assembly is used to monitor the electrolysis reaction rate of the electrolyte, and the processing unit is used to generate a control command according to the electrolysis reaction rate, and the control command is used to control the magnetic inductance and / or rotation speed of the electromagnetic coil and the rotating magnetic field, thereby controlling the induced DC potential and / or the induced DC current in the annular electrolytic cell, and ultimately achieving the purpose of controlling the electrolysis reaction rate.

[0041] In an embodiment of the present invention, the electrolyte in the annular electrolytic cell 12 may be electrolytic water. In this case, the electrolysis device according to an embodiment of the present invention is applicable to hydrogen production using renewable energy, i.e., hydrogen production using electrolytic water is directly realized by the AC current of an alternator driven by a prime mover such as a wind turbine.

[0042] Example 1 In an embodiment of the present invention, when the AC power supply 13 is a three-phase AC current, the structure of the magnetic core magnetic circuit 11 is as follows: There are 3n pairs of magnetic cores 102 around which the electromagnetic coils 101 are wound (i.e., the number of magnetic core pairs is a multiple of 3, e.g., 6, 12, or 18), and each pair of magnetic cores 102 is concentrically arranged in the annular electrolytic cell 12, and the three electromagnetic coils 101 respectively connected to the three phases of the AC power supply 13 each occupy an electrical angle of 2 / 3π.

[0043] Specifically, taking n=1 as an example, the number of magnetic cores 102 is three pairs, six in total, and the six magnetic cores 102 are provided at equal intervals around the circumference of the annular electrolytic cell 12, and three of the six electromagnetic coils 101 function as power supply interfaces every other one, that is, the three electromagnetic coils 101 are respectively connected to three phases of the AC power supply 13. Of the pole shoe pair (i.e., the first pole shoe 112 and the second pole shoe 113) that matches the annular electrolytic cell 12, the first pole shoe 112 is located above the annular electrolytic cell 12, and the second pole shoe 113 is located below the annular electrolytic cell 12. When the electromagnetic coil 101 is connected to a three-phase alternating current, a circular, rotatable magnetic field is generated between the pole shoes (i.e., at the location of the annular electrolytic cell 12), which rotates relative to the stationary annular electrolytic cell 12, causing the electrolyte to passively cut the magnetic field lines and generating an electric potential and current between the electrolyte on either side of the electrolyte cell separator, electrolyzing the electrolyte.

[0044] A ring-shaped rotating magnetic field is formed by the three-phase AC power supply and the three-phase coil, and the three-phase electromagnetic coil and magnetic core each occupy an electrical angle of 2 / 3π. This rotating magnetic field is converted into an inward rotating magnetic field by the iron core, with the magnetic field lines flowing from the inside to the outside. The magnetic inductance is B = E / (4.44fNS), where f is the power supply frequency, E is the electromotive force of the coil, S is the cross-sectional area of ​​the wound conductor (e.g., the iron core), and N is the number of turns.

[0045] The principle of the embodiment of the present invention is similar to that of a three-phase motor, in which the electromagnetic field generated by connecting the electromagnetic coil and the magnetic core to a three-phase symmetrical power supply in a reverse phase sequence rotates counterclockwise, and the equation for the linear velocity v is as follows:

[0046]

number

[0047] Here, f is the power supply frequency, r is the radius of the coil, p is the number of pole pairs in the coil (magnetic poles), and n is the rotation speed.

[0048] In an embodiment of the present invention, the electrolytic cell separator 121 may be configured to separate the electrolytic cell into an anode chamber on the inner peripheral wall side of the annular electrolytic cell 12 and a cathode chamber on the outer peripheral wall side of the annular electrolytic cell 12 (see FIG. 1 ). Alternatively, the electrolytic cell may be divided into a cathode chamber on the inner peripheral wall side of the annular electrolytic cell 12 and an anode chamber on the outer peripheral wall side of the annular electrolytic cell 12 according to the rotation direction of the magnetic core magnetic circuit 11. In the latter case, in order for the pole shoe pair to fit the electrolytic cell separator 121, the structure of the magnetic core magnetic circuit 11 may be as follows:

[0049] The upper and lower ends of the magnetic core 102 are provided with one or more pairs of pole shoes (i.e., a first pole shoe 112 and a second pole shoe 113), respectively, and the annular electrolytic cell 12 is located between the pole shoe pairs. Preferably, the outer edge of the pole shoe pair fits the outer edge of the annular electrolytic cell 12.

[0050] The magnetic field B applied by the magnetic core magnetic circuit 11 is perpendicular to the electrolytic cell, and its rotation rotates the magnetic field. The magnetic inductance of the magnetic core magnetic circuit 11 in the electrolytic cell is B, and the linear rotational speed is v. Since the electrolyte is relatively stationary and the magnetic field is relatively moving, the direction of v in the formula for the induced electric field is opposite to the direction of the magnetic field movement. Taking FIG. 3 as an example, the induced electric field direction is from the inner ring to the outer ring, so that the inner wall side of the annular electrolytic cell 12 is the anode chamber of the electrolytic cell, and the outer wall side is the cathode chamber of the electrolytic cell. In other words, for the annular electrolytic cell 12, as shown in FIG. 2, an anode reaction occurs inside and a cathode reaction occurs outside.

[0051] It should be noted that the specific implementation methods and technical effects of the electrolytic device powered by AC induction in the embodiments of the present invention may refer to the corresponding electrolytic device powered by AC induction in the embodiments, which will not be described in detail here.

[0052] In addition, the AC power source can be a multi-phase power source with a multiple of three, or a single-phase AC power source can be used to form a multi-phase power source through a power electronics converter and cooperate with a multi-phase electromagnetic coil to form a rotating magnetic field. Alternatively, if a single-phase power source is made into a two-phase power source by inductance phase splitting, the rotating magnetic field formed by the electromagnetic coil will be elliptical, so the shape of the electrolytic cell must be optimized through calculations.

[0053] Example 2 Based on the first embodiment, preferably, in the embodiment of the present invention, as shown in FIG. 6, when the AC power source 13 is a single-phase AC current, the AC power source 13 may further include a phase splitter (specifically, it may be a capacitive phase splitter, an inductance phase splitter, or a phase splitter with a converter, etc.) for generating a second phase, in which case, the structure of the excitable magnetic circuit 11 is as follows:

[0054] There are 2n pairs of magnetic cores 102 around which electromagnetic coils 101 are wound, and each pair of magnetic cores 102 is arranged concentrically with the annular electrolytic cell 12. The two electromagnetic coils 101, each connected to two phases of the AC power supply 13, each occupy an electrical angle of π, and a roughly circular rotating magnetic field is formed.

[0055] Specifically, taking n=1 as an example, in this case, there are two pairs of magnetic cores 102, a total of four, and the four magnetic cores 102 are provided at equal intervals on the circumference outside the annular electrolytic cell 12, and two of the four electromagnetic coils 101 function as power supply interfaces every other one, that is, two electromagnetic coils 101 are each connected to two phases of the AC power supply 13. Of the pole shoe pair (i.e., the first pole shoe 112 and the second pole shoe 113) that matches the annular electrolytic cell 12, the first pole shoe 112 is located above the annular electrolytic cell 12, and the second pole shoe 113 is located below the annular electrolytic cell 12. When the electromagnetic coil 101 is connected to a two-phase alternating current, a circular, rotatable magnetic field is generated between the pole shoes (i.e., at the location of the annular electrolytic cell 12), which rotates relative to the stationary annular electrolytic cell 12, causing the electrolyte to passively cut the magnetic field lines and generating an electric potential and current between the electrolyte on either side of the electrolyte cell separator, electrolyzing the electrolyte.

[0056] Similar to a single-phase alternator that can configure a split-phase power supply, a second phase is generated by a split-phase element (e.g., a split-phase capacitor, a split-phase resistor, a split-phase inductance or a converter, in the embodiment of the present invention, a split-phase capacitor is taken as an example), and then two phases of the single-phase AC power supply are connected to two electromagnetic coils so as to be capable of supplying power to form a link-shaped rotating magnetic field, and the two-phase electromagnetic coils and the magnetic cores each occupy an electrical angle of π (i.e., four magnetic cores form a square, the diagonals of the square are perpendicular to each other, and the two electromagnetic coils connected by one diagonal are connected to the two phases of the single-phase AC power supply.) This rotating magnetic field is transformed into an inward rotating magnetic field by the iron core, and the magnetic field line direction is from the inside to the outside, and the magnetic inductance is B=E / (4.44fNS), where f is the power supply frequency, E is the electromotive force of the coil, S is the cross-sectional area of ​​the wound conductor (e.g., the iron core), and N is the number of turns.

[0057] The split-phase power supply connects the electromagnetic coil and the magnetic core in a reverse phase sequence, i.e., the capacitive split-phase coil is arranged in the counterclockwise direction of the main coil, and the resulting electromagnetic field rotates counterclockwise, and the equation for the velocity v is as follows:

[0058]

number

[0059] Here, f is the power supply frequency, r is the radius of the coil, p is the number of pole pairs in the coil, and n is the number of rotations.

[0060] In addition, in the embodiment of the present invention, when a single-phase power supply is used, it is necessary to calculate the number of turns of the phase splitter and the two electromagnetic coils in order to form a circular magnetic field (i.e., a rotating magnetic field) that is closer to a perfect circle. The theoretical induced electromotive force is: E=Blv=2V In the experimental apparatus, the magnetic inductance is B, the coil ampere-turns is An, the length of the electrolytic cell is l, the diameter of the electrolytic cell is d, the rotation speed is v, and the number of pole pairs is p.

[0061] B=μIn=0.1T l=πd=0.2m v=pfl =100m / s p=10 As can be seen, the experimental data is the same as the theoretical calculations.

[0062] It should be noted that the specific implementation methods and technical effects of the electrolysis device directly supplied with energy by AC in the embodiments of the present invention may refer to the corresponding electrolysis device directly supplied with energy by AC in Example 1, which will not be described in detail here.

[0063] The AC induction powered electrolysis device and electrolysis system according to the present invention can be applied to various industries that utilize electrolysis, including but not limited to electrolytic aluminum, electrolytic salt water, electrolytic water, etc.

[0064] The present invention also provides an electrolysis device that is supplied with energy by AC induction, the electrolysis device comprising an AC power source, a magnetic core magnetic circuit, and an annular electrolytic cell, the annular electrolytic cell being filled with an electrolyte, the annular electrolytic cell comprising an electrolytic cell separator, an electrolytic product discharge line, and an electrolyte refill line, the electrolytic cell separator being used to separate the electrolyte into a cathode chamber and an anode chamber, the cathode chamber and the anode chamber being respectively provided with a cathode plate and an anode plate, and the circuit between the cathode plate and the anode plate is short-circuited. The magnetic core magnetic circuit comprises a plurality of magnetic cores wound with electromagnetic coils, the magnetic cores being provided outside the annular electrolytic cell, and a pole shoe pair that fits the annular electrolytic cell is connected to the upper and lower ends of the magnetic cores. The AC power source is connected to the electromagnetic coils and used to generate a rotatable magnetic field between the pole shoe pair, and the rotatable magnetic field generates an induced DC current between the electrolyte on both sides of the electrolytic cell separator.

[0065] Preferably, when the AC power source is a three-phase AC current, the structure of the magnetic core magnetic circuit is as follows: the magnetic cores wound with the electromagnetic coils are 3n pairs, the magnetic cores of each pair are arranged concentrically with the annular electrolytic bath, and the three electromagnetic coils respectively connected to the three phases of the AC power source occupy 2 / 3π electrical angle. Preferably, when the AC power source is a single-phase sinusoidal AC current, the AC power source further includes a phase splitter capacitor for generating a second phase, and the structure of the magnetic core magnetic circuit is as follows: the magnetic cores wound with the electromagnetic coils are 2n pairs, the magnetic cores of each pair are arranged concentrically with the annular electrolytic bath, and the two electromagnetic coils respectively connected to the two phases of the AC power source occupy π electrical angle.

[0066] Preferably, the electrolytic cell separator is used to divide the annular electrolytic cell into an anode chamber in an inner ring and a cathode chamber in an outer ring. Preferably, the electrolyte refill line further includes a line booster pump. Preferably, the cavity of the annular electrolytic cell includes a plurality of sub-cavities independent of each other, and each of the sub-cavities is provided with an electrolytic cell separator, a cathode plate, and an anode plate. Preferably, the electrolyte includes water or an ionic liquid electrolyte.

[0067] Preferably, the system further comprises a control unit, the control unit comprising a monitoring assembly and a processing unit, the monitoring assembly being used for monitoring an electrolytic reaction rate of an electrolyte, the processing unit being used for generating a control command according to the electrolytic reaction rate, the control command being used for controlling an induced DC potential and / or an induced DC current in the annular electrolytic cell by controlling the magnetic inductance and / or the rotation speed of the electromagnetic coil and the magnetic core. In another aspect of the present invention, there is also provided an AC induction powered electrolysis system comprising a prime mover and the AC induction powered electrolysis device.

[0068] The present invention also provides an electrolysis method in which energy is supplied by AC induction, which utilizes an electrolysis system in which energy is supplied by AC induction, and includes the steps of connecting the AC power source to the magnetic circuit and generating a rotating magnetic field surrounding the electrolytic cell by the magnetic circuit, and causing the rotating magnetic field to act on an electrolyte in the electrolytic cell to generate an induced direct current and electrolyze the electrolyte.

[0069] It should be noted that the specific implementation methods and technical effects of the electrolysis system and electrolysis method powered by AC induction in the embodiments of the present invention may refer to the corresponding AC induction powered electrolysis device in Example 1, which will not be described in detail here.

[0070] Although any embodiment of the present invention has been described in detail above with reference to the drawings, the present invention is not limited to the specific details of the above embodiment, and various simple modifications of the technical solutions of the present invention within the scope of the technical ideas of the present invention are possible within the scope of protection of the present invention.

[0071] It should be noted that the specific technical features described in the above specific embodiments may be combined in any suitable manner if not contradictory, and in order to avoid unnecessary duplication, the embodiments of the present invention will not specifically describe various possible combination methods.

[0072] It should be noted that the terms "comprise," "include," or any other variation thereof are intended to encompass a non-exclusive inclusion, such that a process, method, article, or apparatus that includes a set of elements includes not only those elements, but also other elements not expressly listed or that are inherent to such process, method, article, or apparatus. Absent further limitations, an element qualified by the phrase "comprises" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0073] The above is merely an embodiment of the present application, and is not intended to limit the present application. Those skilled in the art may have various modifications and changes to the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of the claims of the present application.

[0074] [Explanation of symbols] 11 Magnetic core magnetic circuit 12 Ring electrolytic cell 13 3-phase AC power supply 101 Electromagnetic coil 102 Magnetic Core 112 No. 1 Pole Shoe 113 2nd Pole Shoe 121 Electrolytic cell separator 122 Cathode plate 123 Anode plate 201 Sub-cavity [Brief description of the drawings]

[0075] [Figure 1] FIG. 1 is a structural schematic diagram of an electrolysis device powered by AC induction according to the present invention; [Diagram 2] FIG. 2 is a schematic diagram of a single-sided profile induced electromotive force of an AC induction-energized electrolysis device according to the present invention; [Diagram 3] FIG. 2 is a schematic plan view of the induced electromotive force in an electrolytic cell of an electrolytic device supplied with energy by AC induction according to the present invention. [Figure 4] 1 is a schematic diagram of a connection between a three-phase AC power source and a star-connected electromagnetic coil according to the present invention. FIG. [Diagram 5] FIG. 2 is a schematic diagram of the layout of several sub-cavities of an electrolysis device energized by AC induction according to the present invention; [Figure 6] FIG. 2 is a schematic diagram of a single-phase AC power supply according to the present invention when it is connected to a star-connected electromagnetic coil with capacitive phase splitting.

Claims

1. 1. An electrolysis device powered by AC induction, comprising: At least one magnetic circuit and an electrolytic cell; the magnetic circuit includes a magnetic core around which an electromagnetic coil is wound, the magnetic core being provided outside the electrolytic cell; The electrolysis device according to claim 1, wherein the magnetic circuit is used to generate a rotating magnetic field surrounding the electrolytic cell by utilizing an AC power source, and the rotating magnetic field acts on an electrolyte in the electrolytic cell to generate an induced DC current and electrolyze the electrolyte.

2. A pole shoe pair that fits the electrolytic cell is connected to the upper and lower ends of the magnetic core, 2. The electrolytic apparatus according to claim 1, characterized in that the magnetic field lines are cut by the relative movement between the magnetic field between the pole shoe pair and the electrolyte in the electrolytic cell, the direction of the magnetic field lines is not parallel to the tangential direction of the movement of the rotating magnetic field, and neither the direction of the magnetic field lines nor the tangential direction of the movement of the rotating magnetic field is perpendicular to the plane of the separator of the electrolytic cell.

3. 2. The electrolysis apparatus according to claim 1, wherein the AC power supply is a polyphase sinusoidal AC current, the magnetic circuit includes m*n pairs of magnetic cores, m being the number of phases of the AC power supply, and n being an integer equal to or less than 1.

4. 2. The electrolysis apparatus according to claim 1, wherein the AC power supply is a three-phase sinusoidal AC power supply, the magnetic circuit includes 3n pairs of magnetic cores, phase lines of the three-phase sinusoidal AC power supply are connected to one end of an electromagnetic coil, and a connection method of the electromagnetic coil is a star connection or a delta connection method.

5. The electrolytic cell is a ring-shaped electrolytic cell, 2. The electrolysis apparatus according to claim 1, wherein the electrolysis cell includes an electrolysis cell separator, a discharge line for the electrolysis product, and a refill line for the electrolyte, the electrolysis cell separator being used to separate the electrolyte into a catholyte and an anolyte.

6. The catholyte and the anolyte are provided with a cathode plate and an anode plate, respectively; 6. The electrolytic device according to claim 5, wherein the circuit between the cathode plate and the anode plate is short-circuited.

7. 6. The electrolysis apparatus according to claim 5, wherein the electrolysis cell includes a plurality of sub-cavities independent of one another, the plurality of sub-cavities being arranged in an annular shape.

8. 8. The electrolysis apparatus of claim 7, wherein each of said sub-cavities is provided with an electrolytic cell separator, a cathode plate and an anode plate.

9. The electrolysis apparatus further comprises a control unit; The control unit includes a monitoring assembly and a processing unit; the monitoring assembly is used to monitor an electrolysis rate of the electrolyte; 2. The electrolysis apparatus according to claim 1, wherein the processing unit is used to control a current of the electromagnetic coil according to an electrolysis speed of an electrolyte, adjust a magnetic inductance of the rotating magnetic field by controlling the current of the electromagnetic coil, control a frequency of the current of the electromagnetic coil according to an electrolysis speed of an electrolyte, and control a rotation speed of the rotating magnetic field.

10. 1. An electrolysis system powered by AC induction, comprising:

10. An electrolysis system comprising an AC power source and an AC induction-energized electrolysis device according to any one of claims 1 to 9.

11. 1. A method of electrolysis in which energy is supplied by AC induction, comprising: Utilizing an AC induction-energized electrolysis system as claimed in claim 10, a step of connecting the AC power supply to the magnetic circuit, generating a rotating magnetic field surrounding the electrolytic cell by the magnetic circuit, and causing the rotating magnetic field to act on an electrolyte in the electrolytic cell to generate an induced direct current and electrolyze the electrolyte.

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