Renewable energy consumption device based on carbon-free solid waste-free aluminum electrolytic cell and working method

Abstract

The application belongs to the technical field of electrolytic cells, and relates to a renewable energy consumption device based on a carbon-free solid waste-free aluminum electrolytic cell and a working method thereof. The device comprises a heat preservation door, a hinge, an air cylinder, a disc-shaped pipe, a heat exchange device, an external heat preservation layer and a carbon-free electrolytic cell. The heat preservation door is arranged above the opening of the carbon-free electrolytic cell, is connected with the air cylinder through the hinge, and is opened or closed through the air cylinder. The disc-shaped pipe is spirally arranged around the side wall of the carbon-free electrolytic cell. The external heat preservation layer is arranged outside the disc-shaped pipe. The disc-shaped pipe is wrapped from the bottom end to the top end of the side wall of the carbon-free electrolytic cell, and the two ends of the disc-shaped pipe are arranged at the bottom and the top of the side wall of the electrolytic cell respectively. The two ends of the disc-shaped pipe are communicated with the heat exchange device, and the cooling and heat preservation of the carbon-free electrolytic cell are realized through the heat exchange device. The application can ensure that the carbon-free electrolytic cell normally works for 24 hours, and can also control the energy-saving regulation and control of the heat exchange device, is safe and environmentally friendly, and has a good application prospect.

Description

Technical Field

[0001] This invention belongs to the field of electrolytic cell technology, and specifically relates to a device and working method for the consumption of renewable energy based on a carbon-free and solid waste-free aluminum electrolytic cell. Background Technology

[0002] Aluminum possesses excellent recyclability and lightweight, energy-saving properties. Furthermore, the industrially-advancing inert electrode technology holds promise for replacing traditional Hall-Herout aluminum electrolysis technology, which uses consumable carbon anodes. This would completely eliminate the harmful and direct greenhouse gas emissions associated with the aluminum electrolysis process, making aluminum a green metal that can mitigate the impacts of climate change and improve the human environment. Aluminum can also serve as a secondary energy source, transmitting energy to automobiles, ships, isolated islands, and communication base stations via aluminum fuel cells. On the other hand, aluminum smelting, or aluminum electrolysis, is a major electricity consumer, absorbing large amounts of electrical energy. Specially designed inert electrode aluminum electrolysis cells can regulate electricity consumption over a wide range, effectively absorbing intermittent renewable energy sources. This makes it particularly suitable for regions rich in wind and solar energy but lacking in hydropower resources, such as the "Three Norths" region of China. This allows for the production of electrolytic aluminum using renewable energy and with minimal or no coal-fired power.

[0003] The current Hall-Herout aluminum electrolysis cell uses consumable carbon anodes, which not only consume a large amount of carbon materials, mainly high-quality petroleum coke, and emit large amounts of greenhouse gases such as CO2, strong greenhouse gases such as fluorocarbons (CF4, C2F6), and SO2, but also requires constant replacement of prebaked anode carbon blocks during the current aluminum electrolysis process. This leads to unstable electrolysis production, increased labor intensity, personal risks to workers exposed to high-temperature molten metal, and fugitive emissions of fluorides. The production process of prebaked carbon anodes also emits carcinogenic aromatic compounds (PAHs), SO2, and dust, all of which are major sources of PM2.5. In addition, the use of carbon anodes is also the main reason for the high energy consumption and high cost of the current aluminum electrolysis process. The theoretical minimum energy consumption of the current Hall-Herout aluminum electrolysis cell is 6160 kWh / ton of aluminum, while the actual energy consumption is between 13000-14500 kWh / ton of aluminum, with an electrical efficiency of only 42-48%, and energy loss in the form of heat exceeding 52%.

[0004] The use of non-carbon anodes, or inert anodes, to achieve a new process for the co-production of oxygen and primary aluminum through electrolysis can solve the aforementioned emission and pollution problems, and can improve production efficiency, reduce land area, and lower production costs, thus becoming a focus of attention and research hotspot in the international aluminum and materials industries. The use of non-carbon anodes in the co-production of oxygen and aluminum through electrolysis has the following advantages: (1) The electrodes are almost not consumed during the electrolysis process, and the material consumption is less than one percent of that of carbon anodes. There is no need for an auxiliary carbon processing plant and carbon anode assembly plant, which reduces production costs and eliminates the environmental impact and pollution caused by the production and use of carbon anodes; (2) The electrodes are not consumed, the electrode distance is stable, and it is easy to control. The frequency of anode replacement is reduced by more than ten times, and the labor intensity and occupational risks are greatly reduced; (3) A higher unit volume current can be used to increase the capacity of the electrolytic cell; (4) The anode product is oxygen, which avoids environmental pollution, and oxygen can also be used as a by-product.

[0005] While solar and wind energy are abundant enough to fully meet human needs, and solar photovoltaic power plants and wind farms are increasingly common, both are intermittent renewable energy sources. During peak electricity consumption periods, solar and wind power cannot provide electricity; conversely, during off-peak periods, while they can provide sufficient power, there are often few users, forcing people to forgo some or most of their solar and wind power. Therefore, there is an urgent need for renewable energy absorption facilities or large-scale electricity consumers to absorb this intermittent renewable energy. Summary of the Invention

[0006] In view of the problems existing in the prior art, the present invention aims to solve one of the problems mentioned above. The present invention proposes an inert electrode alumina co-production electrolytic cell with special insulation design and regulation to absorb the electricity generated by intermittent renewable energy sources, especially solar and wind power, while making the aluminum production process cleaner and more environmentally friendly, making aluminum a greener metal.

[0007] The carbon-free electrolytic cell mentioned in this invention employs a vertically arranged inert anode and inert cathode, which are staggered and parallel to each other. The horizontal distance between corresponding parts of the cathode and anode is called the electrode spacing, and the electrode spacing of the same electrolytic cell must be kept constant. The electrolytic cell can be either a heat-dissipating or heat-insulating type, and can be flexibly adjusted and switched; that is, this oxygen-aluminum co-production electrolytic cell has a power regulation capability of 0-100%.

[0008] To achieve the above objectives, the present invention first provides a renewable energy consumption device based on a carbon-free and solid waste-free aluminum electrolytic cell. The device includes an insulated door, hinges, a cylinder, a disc tube, a heat exchange device, an external insulation layer, and a carbon-free electrolytic cell.

[0009] The carbon-free electrolytic cell has an insulated door above its opening. The top insulated door is connected to a cylinder via a hinge, and the cylinder is used to open or close the insulated door.

[0010] The disc-shaped tube is spirally wrapped around the side wall of the carbon-free electrolytic cell; an external heat insulation layer is provided on the outside of the disc-shaped tube; when the disc-shaped tube is spirally wrapped around the carbon-free electrolytic cell, one side of it is in contact with the carbon-free electrolytic cell, and the other side is not in contact with the side wall of the carbon-free electrolytic cell; the side that is not in contact is referred to as the outside of the disc-shaped tube.

[0011] The disc-shaped tube extends from the bottom to the top of the side wall of the carbon-free electrolytic cell, with its two ends located at the bottom and top of the side wall of the electrolytic cell, respectively. Both ends of the disc-shaped tube are connected to a heat exchange device, which enables the cooling and heat preservation of the carbon-free electrolytic cell.

[0012] Specifically, the hinge includes hinge one, hinge two, hinge three, and hinge four; the cylinder includes cylinder one and cylinder two; and the heat-insulating door is composed of heat-insulating door one and heat-insulating door two.

[0013] Specifically, the first and second heat-insulating doors are connected by a hinge three; the first and second cylinders are connected by a hinge two, and the other end of the first cylinder is connected to the first heat-insulating door via a hinge one; the other end of the second cylinder is connected to the second heat-insulating door via a hinge four.

[0014] Specifically, the spiral winding refers to the spiral winding from the bottom to the top of the carbon-free electrolytic cell, for a total of n turns, where n is a positive integer.

[0015] Heat exchanger 1:

[0016] The heat exchange device is composed of a normal temperature tube 1, a normal temperature liquid tank, a high temperature tube 1, a high temperature liquid tank, a liquid tank insulation layer, a high temperature tube 2, a one-way valve 1, a hydraulic pump 1, a one-way valve 2, a normal temperature tube 2, a one-way valve 3, a hydraulic pump 2, a one-way valve 4, a normal temperature tube 3, and a high temperature tube 3.

[0017] The outer wall of the high-temperature liquid tank is wrapped with a liquid tank insulation layer; the upper port of the disc tube is connected to the normal temperature tube three, and the bottom port is connected to the high temperature tube three;

[0018] The first ambient temperature pipe is connected to the upper end of the ambient temperature liquid tank; the bottom of the ambient temperature liquid tank is also connected to the second ambient temperature pipe; the other end of the second ambient temperature pipe is connected to the first ambient temperature pipe, and the connection point is denoted as point P; a one-way valve four is provided on the first ambient temperature pipe, and is located between point P and the ambient temperature liquid tank; along the direction from point P to the bottom of the ambient temperature liquid tank, a hydraulic pump two and a one-way valve three are sequentially provided on the second ambient temperature pipe; the other end of the third ambient temperature pipe is connected to the first ambient temperature pipe and the second ambient temperature pipe at point P, that is, point P is the connection point of the first ambient temperature pipe, the second ambient temperature pipe and the third ambient temperature pipe;

[0019] The other end of the high-temperature pipe one is connected to the upper end of the high-temperature liquid tank; the bottom of the high-temperature liquid tank is also connected to the high-temperature pipe two; the other end of the high-temperature pipe two is connected to the high-temperature pipe one, and the connection point is denoted as point I; a one-way valve two is provided on the high-temperature pipe one, and is located between point I and the high-temperature pipe one; along the direction from point I to the bottom of the high-temperature liquid tank, a hydraulic pump one and a one-way valve one are sequentially provided on the high-temperature pipe two; the other end of the high-temperature pipe three is connected to the high-temperature pipe one and the high-temperature pipe two and is connected to point I, that is, point I is the connection point of the high-temperature pipe one, the high-temperature pipe two and the high-temperature pipe three.

[0020] Specifically, the heat exchange device also includes a liquid pipe insulation layer; the outer walls of high-temperature pipe one, high-temperature pipe two, and high-temperature pipe three are all wrapped with a liquid pipe insulation layer.

[0021] Heat exchanger two:

[0022] The heat exchange device consists of insulation pipe one, heat exchanger, insulation pipe two, one-way valve five, hydraulic pump three, and pressure gauge;

[0023] The heat exchanger consists of a spiral coil, a heat storage material, and an insulation tank. The heat storage material is located inside the insulation tank, forming a closed space. The insulation tank also contains a spiral coil, which is surrounded by the heat storage material. The two ends of the spiral coil penetrate the top and bottom of the insulation tank, and are referred to as end A and end B, respectively.

[0024] The upper end of the coiled tube is connected to the first insulation tube, and the other end of the first insulation tube is connected to the upper A end of the spiral coil.

[0025] The bottom end of the coiled tube is connected to the second insulation tube; the other end of the second insulation tube is connected to the lower B end of the spiral coil; and along the direction from the second insulation tube to the bottom of the heat exchanger, a pressure gauge, a third hydraulic pump and a fifth check valve are sequentially installed on the second insulation tube.

[0026] Specifically, the heat storage material is a phase change heat storage material or a thermochemical heat storage material; specifically, it includes calcium chloride hexahydrate, sodium acetate trihydrate, or organic alcohols.

[0027] The working method of the renewable energy consumption device based on a carbon-free and solid waste-free aluminum electrolysis cell is as follows:

[0028] S1: In the mode where there is no power input, the carbon-free electrolytic cell starts passive heat preservation. The heat preservation door is closed by the operation of the cylinder. At this time, the flue gas and heat inside the carbon-free electrolytic cell cannot be dissipated, thus achieving the effect of passive heat preservation.

[0029] S2: Under normal operating conditions, the carbon-free electrolyzer loses too much residual heat and it is not utilized. At this time, the residual heat is stored by active cooling. The room temperature solution is introduced through one end of the disc tube by the heat exchange device, flows around the carbon-free electrolyzer, and is finally output from the other end of the disc tube. The room temperature solution carries away the heat dissipated by the carbon-free electrolyzer, thus achieving active cooling.

[0030] S3: When the room temperature solution becomes a hot solution after circulation or when there is no power input to the carbon-free electrolytic cell, the hot solution stored in the renewable energy consumption device of the carbon-free and solid waste-free aluminum electrolytic cell is used to conduct heat to the carbon-free electrolytic cell through flow to keep the thermal balance of the carbon-free electrolytic cell stable. At this time, active heat preservation is activated. First, the heat preservation door is closed by the operation of the cylinder. Then, the hot solution output by the heat exchange device is input through one end of the disc tube. The hot solution flows around the carbon-free electrolytic cell through the disc tube and is finally output from the other end of the disc tube. The hot solution will transfer heat to the carbon-free electrolytic cell during the flow process to achieve the heat preservation effect.

[0031] S4: During active cooling, the room temperature solution flows around the carbon-free electrolytic cell through the disc tube, utilizing the heat dissipated by the carbon-free electrolytic cell to become a hot solution, which is then stored in the heat exchange device. Simultaneously, when heat preservation is required, the hot solution flows around the carbon-free electrolytic cell through the disc tube, becoming a room temperature solution. This constitutes a renewable energy consumption device based on a carbon-free and solid waste-free aluminum electrolytic cell, achieving both cooling and heat preservation of the carbon-free electrolytic cell.

[0032] Specifically, the solution can be selected as heat-conducting oil, liquid metal or non-metal heat-conducting liquid.

[0033] Based on the working method of heat exchanger one:

[0034] S1: Under normal operation of the carbon-free electrolytic cell, excessive residual heat is lost. At this time, the residual heat storage mode is activated by active cooling. The active cooling mode is activated by opening hydraulic pump two to provide pressure to ambient temperature tube two and ambient temperature tube three. One-way valve four itself has a certain pressure. At this time, the solution in the ambient temperature tank will flow from ambient temperature tube two into ambient temperature tube three, and then into the disc tube.

[0035] After the solution flows around the carbon-free electrolytic cell through the disc tube, it flows into the high-temperature tube three from the other end of the disc tube. Since the one-way valve one will prevent the solution from flowing into the high-temperature liquid tank from the high-temperature tube two, the solution can only pass through the one-way valve two and enter the high-temperature liquid tank from the high-temperature tube one. At the same time, the hydraulic pump one is always in the closed state, and the solution in the high-temperature liquid tank will not flow out from the high-temperature tube two below.

[0036] S2: When the room temperature solution becomes a hot solution or when there is no power input to the carbon-free electrolytic cell, the hot solution is used to keep the carbon-free electrolytic cell warm and keep the thermal balance of the carbon-free electrolytic cell stable. At this time, the active heat preservation is started: the hydraulic pump is turned on to provide pressure to the high temperature pipe three. The one-way valve two itself has a certain pressure. At this time, the solution in the high temperature tank will flow from the high temperature pipe two into the high temperature pipe three, and then flow into the disc tube.

[0037] After the solution flows around the carbon-free electrolytic cell through the disc tube, it enters the ambient temperature tube three from the other end of the disc tube. The one-way valve three prevents the solution from flowing into the ambient temperature liquid tank from the lower ambient temperature tube two. The solution can only enter the ambient temperature liquid tank from the ambient temperature tube one through the one-way valve four. At the same time, the hydraulic pump two is always in the closed state, and the solution in the ambient temperature tube two will not flow into the ambient temperature tube three.

[0038] Based on the working method of heat exchanger two:

[0039] S1: When the carbon-free electrolytic cell is working normally, the heat storage mode is activated; hydraulic pump three is turned on, and check valve five ensures that the solution in insulation tube two flows in one direction only, and can only flow towards the disc tube from the bottom layer to the top layer. Even if hydraulic pump three is turned off, the solution in insulation tube two cannot flow back into the heat exchanger.

[0040] Meanwhile, both insulation pipe one and insulation pipe two are wrapped with insulation material to prevent heat loss during solution flow. When the carbon-free electrolyzer is working normally, the solution flows through the coiled tubes and carries away the residual heat of the carbon-free electrolyzer, eventually flowing into the insulation tank. The spiral coils in the insulation tank exchange heat with the heat storage material, thereby achieving the function of heat storage. The insulation tank ensures that the heat of the heat storage material is not dissipated, thus achieving the purpose of storing heat in the heat storage material.

[0041] S2: When there is no power input to the carbon-free electrolytic cell, the heat preservation and regulation mode is activated. The heat energy in the heat storage material is transferred to the spiral coil, which in turn heats the solution in the pipeline. At this time, the hydraulic pump is turned on, and the solution flows through the coil to the carbon-free electrolytic cell for heating and heat preservation, so as to maintain the thermal balance of the carbon-free electrolytic cell.

[0042] During normal operation, the waste heat of the carbon-free electrolyzer is carried away by the room-temperature solution and becomes a hot solution, which is then transferred to the heat storage material in the insulation tank for storage. When the carbon-free electrolyzer needs to be kept warm, the heat energy stored in the insulation tank can also be used to heat the solution in the spiral coil, and then the heat is transferred to the carbon-free electrolyzer through the coil tube, thus forming a renewable energy consumption device.

[0043] The beneficial effects of this invention are:

[0044] The renewable energy consumption device based on a carbon-free and solid waste-free aluminum electrolytic cell provided by this invention can ensure the normal operation of the carbon-free electrolytic cell 24 hours a day, and can also control the heat exchange device for energy-saving regulation; it mainly has the following modes:

[0045] (1) Passive insulation: When there is no power input, the insulation door is closed by the operation of the cylinder. At this time, the flue gas and heat inside the carbonless electrolysis cell cannot be dissipated, thus achieving the effect of passive insulation. It can maintain no power input for up to 3 hours a day or reduce the power input by up to 30%. That is to say, 30% renewable energy power regulation can be carried out, and the remaining power consumption uses 70% coal power, that is, the power consumption is maintained at 70% basic coal power + 30% renewable energy power.

[0046] (2) Active cooling: The room temperature solution is input through one end of the coiled tube by the heat exchange device, flows around the electrolytic cell, and finally outputs from the other end of the coiled tube; the room temperature solution carries away the heat of the carbon-free electrolytic cell, thus achieving active cooling. The flow rate of the solution can be controlled by the opening of the valve to accelerate or reduce the heat dissipation of the electrolytic cell and adjust the thermal balance of the electrolytic cell. This can increase the power regulation capacity to 50%, that is, the power supply can maintain 50% basic coal power + 50% renewable energy power.

[0047] (3) Active heat preservation: When there is no power input to the carbonless electrolytic cell, the hot solution in the renewable energy consumption device of the carbonless and solid waste-free aluminum electrolytic cell is used to keep the carbonless electrolytic cell warm. It can be shut down for 5-7 hours a day to achieve 80% power regulation capacity, that is, the power consumption maintains 20% basic coal power + 80% renewable energy power. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the renewable energy consumption device based on a carbon-free and solid waste-free aluminum electrolytic cell in Example 1, where (A) is a schematic diagram during cooling; and (B) is a schematic diagram during heat preservation.

[0049] Figure 2 This is a schematic diagram of the disc tube structure and flow direction in Example 1, where H represents the waste heat of the carbon-free electrolytic cell;

[0050] Figure 3 This is a schematic diagram of the top insulation door structure, where (A) is a schematic diagram of the insulation door being open; and (B) is a schematic diagram of the insulation door being closed.

[0051] Figure 4 This is a schematic diagram of the renewable energy consumption device based on a carbon-free and solid waste-free aluminum electrolytic cell in Example 2, where (A) is a schematic diagram during cooling; and (B) is a schematic diagram during heat preservation.

[0052] Figure 5The diagram shows the structure of a heat exchanger, where (a) is a schematic diagram of the heat exchanger releasing heat and (b) is a schematic diagram of the heat exchanger absorbing heat.

[0053] Attached reference numerals: 1-Insulated door one, 2-Hinge one, 3-Cylinder one, 4-Hinge two, 5-Cylinder two, 6-Hinge three, 7-Hinge four, 8-Insulated door two, 9-Coiled tube, 10-Heat exchange device, 11-Ambient temperature tube one, 12-Ambient temperature liquid tank, 13-Liquid tube insulation layer, 14-High temperature tube one, 15-High temperature liquid tank, 16-Liquid tank insulation layer, 17-High temperature tube two, 18-Check valve one, 19-Hydraulic pump one. 20-Check valve two, 21-Ambient temperature pipe two, 22-Check valve three, 23-Hydraulic pump two, 24-Check valve four, 25-Ambient temperature pipe three, 26-High temperature pipe three, 27-External insulation layer, 28-Carbon-free electrolytic cell, 29-Insulation pipe one, 30-Heat exchanger, 31-Insulation pipe two, 32-Check valve five, 33-Hydraulic pump three, 34-Pressure gauge, 35-Spiral coil, 36-Heat storage material, 37-Insulation tank. Detailed Implementation

[0054] The present invention will be described in detail below with reference to examples, but the present invention is not limited to these embodiments.

[0055] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0056] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0057] Example 1:

[0058] like Figure 1 The diagram shows a schematic of an intermittent renewable energy consumption device. The device includes an insulated door 1, a hinge 2, a cylinder 3, a hinge 4, a cylinder 5, a hinge 3, a hinge 4, a hinge 5, an insulated door 6, a hinge 4, an insulated door 7, an insulated door 8, a disc tube 9, a normal temperature tube 11, a normal temperature liquid tank 12, a liquid pipe insulation layer 13, a high temperature tube 14, a high temperature liquid tank 15, a liquid tank insulation layer 16, a high temperature tube 2 17, a one-way valve 18, a hydraulic pump 19, a one-way valve 20, a normal temperature tube 21, a one-way valve 3 22, a hydraulic pump 23, a one-way valve 4 24, a normal temperature tube 3 25, a high temperature tube 3 26, an external insulation layer 27, and a carbon-free electrolytic cell 28.

[0059] The carbon-free electrolytic cell 28 is provided with a pneumatically controlled heat preservation door above the opening. The heat preservation door 1 and the heat preservation door 2 are connected by the hinge 3 6. The cylinder 1 3 and the cylinder 2 5 are connected by the hinge 2 4. The other end of the cylinder 1 3 is connected to the heat preservation door 1 through the hinge 1 2. The other end of the cylinder 2 5 is connected to the heat preservation door 2 8 through the hinge 4 7.

[0060] The outer side of the disc tube 9 is provided with an external heat insulation layer 27 (when the disc tube 9 spirally surrounds the carbon-free electrolytic cell 28, one side of it contacts the carbon-free electrolytic cell 28, and the other side does not contact the side wall of the carbon-free electrolytic cell 28; the side that does not contact is referred to as the outer side of the disc tube 9); the disc tube 9 spirally surrounds the side wall of the carbon-free electrolytic cell 28; the spiral surrounding specifically means that it surrounds the carbon-free electrolytic cell 28 from the bottom end to the top end in sequence, for a total of 10 turns;

[0061] The disc tube 9 extends from the bottom end of the side wall of the carbon-free electrolytic cell 28 around the top end, with its two ends respectively located at the bottom and top of the side wall of the electrolytic cell.

[0062] The upper port of the disc-shaped tube 9 is connected to the normal temperature tube 25, and the bottom port is connected to the high temperature tube 26.

[0063] The ambient temperature pipe 11 is connected to the upper end of the ambient temperature liquid tank 12; the bottom of the ambient temperature liquid tank 12 is also connected to the ambient temperature pipe 21; the other end of the ambient temperature pipe 21 is connected to the ambient temperature pipe 11, and the connection point is denoted as point P; a one-way valve 24 is provided on the ambient temperature pipe 11, and is located between point P and the ambient temperature liquid tank 12; along the direction from point P to the bottom of the ambient temperature liquid tank 12, a hydraulic pump 23 and a one-way valve 22 are sequentially provided on the ambient temperature pipe 21; the other end of the ambient temperature pipe 25 is connected to the ambient temperature pipe 11 and the ambient temperature pipe 21 at point P, that is, point P is the connection point of the ambient temperature pipe 11, the ambient temperature pipe 21 and the ambient temperature pipe 25;

[0064] The other end of the high-temperature pipe 14 is connected to the upper end of the high-temperature liquid tank 15; the bottom of the high-temperature liquid tank 15 is also connected to the high-temperature pipe 17; the other end of the high-temperature pipe 17 is connected to the high-temperature pipe 14, and the connection point is denoted as point I; a one-way valve 20 is provided on the high-temperature pipe 14, and is located between point I and the high-temperature pipe 14; along the direction from point I to the bottom of the high-temperature liquid tank 15, a hydraulic pump 19 and a one-way valve 18 are sequentially provided on the high-temperature pipe 17; the other end of the high-temperature pipe 26 is connected to the high-temperature pipe 14 and the high-temperature pipe 27 and is connected to point I, that is, point I is the connection point of the high-temperature pipe 14, the high-temperature pipe 27 and the high-temperature pipe 26.

[0065] The outer walls of the high-temperature tube 14, high-temperature tube 27 and high-temperature tube 3 26 are all wrapped with a liquid tube insulation layer 13; the outer wall of the high-temperature liquid tank 15 is wrapped with a liquid tank insulation layer 16.

[0066] The specific working method is as follows (the solution in both the ambient temperature liquid tank and the high temperature liquid tank is heat transfer oil):

[0067] S1: In the absence of electrical power input, the carbon-free electrolytic cell 28 activates passive heat preservation. Figure 3 The top insulated door shown operates independently, extended by a piston rod in a cylinder, which then pushes the insulated door closed via a hinge. Figure 3 As shown in Figure (B), the flue gas inside the carbon-free electrolytic cell 28 is shut off and the heat cannot be dissipated, thus achieving a passive heat preservation effect;

[0068] S2: Under normal operation, the carbon-free electrolytic cell 28 loses excessive residual heat, so it uses active cooling to store the residual heat. At this time, active cooling is activated; the ambient temperature liquid tank 12 contains ambient temperature oil, while the high-temperature liquid tank 15 is empty. Figure 1 As shown in Figure (A): The carbon-free electrolytic cell 28 is in the cooling process. The hydraulic pump 23 is turned on to provide pressure to the ambient temperature tube 21 and the ambient temperature tube 3 25. The one-way valve 4 24 itself has a certain pressure. At this time, the oil in the ambient temperature liquid tank 12 will flow from the ambient temperature tube 21 into the ambient temperature tube 3 25, and then into the disc tube 9.

[0069] In such Figure 2 As shown in Figure (A), room temperature oil flows in from room temperature pipe 25, circles the carbon-free electrolytic cell 28, and then flows into the next layer, which is as follows. Figure 2 As shown in Figure (B), after circling the carbon-free electrolytic cell 28 once more, it enters as shown in Figure (B). Figure 2 The number of layers shown in Figure (C) is such that even numbers in each layer are as follows: Figure 2 As shown in Figure (B), odd numbers are all as follows Figure 2 As shown in Figure (C), finally from Figure 2 The lowest layer flows out as shown in (D) (when n=11, i.e., an odd number), from... Figure 2(As shown in the middle (E), the oil flows out from the bottom layer). Because the disc tube 9 surrounds the entire carbon-free electrolysis cell 28, the heat emitted by the carbon-free electrolysis cell 28 will carry away each time the oil passes through, achieving the effect of turning room temperature oil into hot oil. Finally, it enters the high temperature tube 26 from the bottom layer.

[0070] Meanwhile, because the liquid pipe insulation layer 13 surrounds and wraps the entire high-temperature pipe, it plays a role in heat preservation. Therefore, the heat loss during the flow of hot oil is negligible. Since the one-way valve 18 prevents oil from flowing from the high-temperature pipe 17 into the high-temperature liquid tank 15, the hot oil can only pass through the one-way valve 20 and enter the high-temperature liquid tank 15 from the high-temperature pipe 14. The liquid tank insulation layer 16 can keep the high-temperature liquid tank 15 warm. The hydraulic pump 19 is always in the closed state during this process, which can prevent the oil in the high-temperature liquid tank 15 from flowing out from the lower high-temperature pipe 17. During this process, the flow rate can be adjusted to control the heat dissipation of the carbon-free electrolytic cell 28. This completes the storage of the waste heat dissipated by the normal operation of the carbon-free electrolytic cell 28. Through the circulation of oil, the hot oil is finally stored in the high-temperature liquid tank 15.

[0071] S3: When the room temperature oil becomes hot oil or when there is no power input to the carbon-free electrolysis cell 28, the hot oil is used to keep the carbon-free electrolysis cell 28 warm, so that the thermal balance of the carbon-free electrolysis cell 28 remains stable. At this time, active heat preservation is started; firstly, the heat preservation door is in the closed state. Figure 3 (B) As shown in the figure, the hydraulic pump 19 is turned on to provide pressure to the high temperature pipe 26. The one-way valve 20 itself has a certain pressure. At this time, the oil in the high temperature tank 15 will flow from the high temperature pipe 27 into the high temperature pipe 26, and then flow into the bottom layer of the disc pipe 9.

[0072] In the coiled tube 9, because the oil pipe surrounds the entire carbon-free electrolytic cell 28, when the hot oil flows in the coiled tube 9, it will transfer the heat in the hot oil to the carbon-free electrolytic cell 28, so that the carbon-free electrolytic cell 28 plays a heat preservation role. When the hot oil passes through the coiled tube 9, the temperature will drop, and finally enter the ambient temperature tube 25 from the top layer.

[0073] Because the ambient temperature pipe provides no insulation throughout the process, heat loss is significant during oil flow. Since check valve 3 22 prevents oil from flowing from the lower ambient temperature pipe 2 21 into the ambient temperature liquid tank 12, the oil can only pass through check valve 4 24 and enter the ambient temperature liquid tank 12 from the ambient temperature pipe 1 11. The ambient temperature liquid tank 12 provides no insulation, and the oil inside eventually reaches ambient temperature. Hydraulic pump 2 23 remains closed throughout this process, preventing oil from flowing from ambient temperature pipe 2 21 into ambient temperature pipe 3 25. This ensures that the heat energy stored in the high-temperature liquid tank 15 continuously provides energy for the thermal balance of the carbon-free electrolytic cell 28.

[0074] Example 2:

[0075] like Figure 4 The diagram shows the structure of an intermittent renewable energy consumption device. The device includes an insulated door 1, a hinge 2, a cylinder 3, a hinge 4, a cylinder 5, a hinge 3, a hinge 4, a hinge 5, an insulated door 2, a disc tube 9, an insulated pipe 29, a heat exchanger 30, an insulated pipe 2 31, a one-way valve 5 32, a hydraulic pump 3 33, a pressure gauge 34, an external insulation layer 27, and a carbon-free electrolytic cell 28.

[0076] The carbon-free electrolytic cell 28 is provided with a pneumatically controlled heat preservation door above the opening. The heat preservation door 1 and the heat preservation door 2 are connected by the hinge 3 6. The cylinder 1 3 and the cylinder 2 5 are connected by the hinge 2 4. The other end of the cylinder 1 3 is connected to the heat preservation door 1 through the hinge 1 2. The other end of the cylinder 2 5 is connected to the heat preservation door 2 8 through the hinge 4 7.

[0077] The outer side of the disc tube 9 is provided with an external heat insulation layer 27 (when the disc tube 9 spirally surrounds the carbon-free electrolytic cell 28, one side of it contacts the carbon-free electrolytic cell 28, and the other side does not contact the side wall of the carbon-free electrolytic cell 28; the side that does not contact is referred to as the outer side of the disc tube 9); the disc tube 9 spirally surrounds the side wall of the carbon-free electrolytic cell 28; the spiral surrounding specifically means that it surrounds the carbon-free electrolytic cell 28 from the bottom end to the top end in sequence, for a total of 10 turns;

[0078] The disc tube 9 extends from the bottom end of the side wall of the carbon-free electrolytic cell 28 around the top end, with its two ends respectively located at the bottom and top of the side wall of the electrolytic cell.

[0079] The heat exchanger 30 is composed of a spiral coil 35, a heat storage material 36, and an insulation tank 37. The heat storage material 36 is enclosed in the insulation tank 37, and the insulation tank 37 also contains a spiral coil 35. The spiral coil 35 is surrounded by the heat storage material 36. The two ends of the spiral coil 35 penetrate the top and bottom of the outer shell and are referred to as end A and end B, respectively.

[0080] The upper end of the disc tube 9 is connected to the insulation tube 29, and the other end of the insulation tube 29 is connected to the upper A end of the spiral coil 35.

[0081] The bottom port of the coiled tube 9 is connected to the second insulation tube 31; the other end of the second insulation tube 31 is connected to the lower B end of the spiral coil 35; and along the direction from the second insulation tube 31 to the bottom of the heat exchanger 30, a pressure gauge 34, a hydraulic pump 33, and a one-way valve 32 are sequentially provided on the second insulation tube 31; specifically, the heat storage material 36 is calcium chloride hexahydrate.

[0082] The specific working method is as follows:

[0083] Special heat storage material is used in heat exchanger 30, and the solution in the spiral coil 35 inside the insulation tank 37 is heat transfer oil; regardless of the cooling stage or the flow direction of the insulation oil, it is constant, and the oil flows in a closed loop throughout the system.

[0084] S1: When the carbon-free electrolyzer 28 is operating normally, the heat storage mode is activated, such as... Figure 4 As shown in Figure (A), when hydraulic pump 33 is open, check valve 532 ensures that the oil in insulation pipe 231 flows in one direction only, and can only flow towards the disc tube 9 from the bottom to the top. Even if hydraulic pump 33 is closed, the oil in insulation pipe 231 cannot flow back into the heat exchanger.

[0085] Meanwhile, both the first insulation pipe 29 and the second insulation pipe 31 are wrapped with insulation material to prevent heat loss during the oil flow process. When the carbon-free electrolysis cell 28 is working normally, the oil flows through the coiled pipe 9 and carries away the residual heat of the carbon-free electrolysis cell 28, eventually flowing into the insulation tank 37.

[0086] In such Figure 5 As shown in Figure (b), the spiral coil 35 in the heat storage tank 37 exchanges heat with the heat storage material 36, thereby achieving the function of heat storage. The heat storage tank 37 ensures that the heat inside the heat storage material 36 is not dissipated; thus achieving the desired effect. Figure 5 The heat shown in Figure (b) is stored in the heat storage material;

[0087] S2: When there is no power input to the carbon-free electrolysis cell 28, the heat preservation and regulation mode is activated, such as... Figure 5 As shown in Figure (a), the heat energy in the heat storage material 36 is transferred to the spiral coil 35, which in turn heats the oil in the spiral coil. At this time, the hydraulic pump 33 is turned on, and the hot oil flows through the coil tube 9 to the carbon-free electrolytic cell 28 for heating and heat preservation, so as to maintain the thermal balance of the carbon-free electrolytic cell 28.

[0088] The waste heat of the carbon-free electrolyzer 28 during normal operation is carried away by the room temperature oil and turned into hot oil, which is then transferred to the heat storage material 36 in the heat storage tank 37 for storage. When the carbon-free electrolyzer 28 needs to be kept warm, the heat energy stored in the heat storage tank 37 can also be used to heat the oil in the spiral coil 35, and then the heat is transferred to the carbon-free electrolyzer 28 through the coil tube 9, thus forming a renewable energy consumption device.

[0089] Note: The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Therefore, although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A renewable energy consumption device based on a carbon-free and solid waste-free aluminum electrolytic cell, characterized in that, The device includes an insulated door, hinges, cylinders, a disc tube (9), a heat exchange device (10), an external insulation layer (27), and a carbon-free electrolytic cell (28). The carbon-free electrolytic cell (28) is provided with a heat-insulating door above the opening. The heat-insulating door is connected to a cylinder by a hinge, and the opening or closing of the heat-insulating door is achieved by the cylinder. The disc tube (9) is spirally wrapped around the side wall of the carbon-free electrolytic cell (28); an external heat insulation layer (27) is provided on the outside of the disc tube (9); when the disc tube (9) is spirally wrapped around the carbon-free electrolytic cell (28), one side of it is in contact with the carbon-free electrolytic cell (28), and the other side is not in contact with the side wall of the carbon-free electrolytic cell (28). The side that is not in contact is called the outside of the disc tube (9). The disc tube (9) extends from the bottom to the top of the side wall of the carbon-free electrolytic cell (28), with its two ends located at the bottom and top of the side wall of the electrolytic cell, respectively. Both ends of the disc tube (9) are connected to the heat exchange device (10), through which the cooling and heat preservation of the carbon-free electrolytic cell (28) are achieved. The heat exchange device (10) consists of a normal temperature tube (11), a normal temperature liquid tank (12), a high temperature tube (14), a high temperature liquid tank (15), a liquid tank insulation layer (16), a high temperature tube (17), a one-way valve (18), a hydraulic pump (19), a one-way valve (20), a normal temperature tube (21), a one-way valve (22), a hydraulic pump (23), a one-way valve (24), a normal temperature tube (25), and a high temperature tube (26). The outer wall of the high-temperature liquid tank (15) is wrapped with a liquid tank insulation layer (16); the upper port of the disc tube (9) is connected to the normal temperature tube three (25), and the bottom port is connected to the high temperature tube three (26). The first room temperature pipe (11) is connected to the upper end of the room temperature liquid tank (12); the bottom of the room temperature liquid tank (12) is also connected to the second room temperature pipe (21); the other end of the second room temperature pipe (21) is connected to the first room temperature pipe (11), and the connection point is marked as point P; a one-way valve four (24) is provided on the first room temperature pipe (11), and it is located between point P and the room temperature liquid tank (12); along the direction from point P to the bottom of the room temperature liquid tank (12), a hydraulic pump two (23) and a one-way valve three (22) are sequentially provided on the second room temperature pipe (21); the other end of the third room temperature pipe (25) is connected to the first room temperature pipe (11) and the second room temperature pipe (21) at point P, that is, point P is the connection point of the first room temperature pipe (11), the second room temperature pipe (21) and the third room temperature pipe (25); The other end of the high-temperature pipe one (14) is connected to the upper end of the high-temperature liquid tank (15); the bottom of the high-temperature liquid tank (15) is also connected to the high-temperature pipe two (17); the other end of the high-temperature pipe two (17) is connected to the high-temperature pipe one (14), and the connection point is recorded as point I; a one-way valve two (20) is provided on the high-temperature pipe one (14), and is located between point I and the high-temperature pipe one (14); along the direction from point I to the bottom of the high-temperature liquid tank (15), a hydraulic pump one (19) and a one-way valve one (18) are sequentially provided on the high-temperature pipe two (17); the other end of the high-temperature pipe three (26) is connected to the high-temperature pipe one (14) and the high-temperature pipe two (17) and is connected to point I, that is, point I is the connection point of the high-temperature pipe one (14), the high-temperature pipe two (17) and the high-temperature pipe three (26).

2. The renewable energy consumption device based on a carbon-free and solid waste-free aluminum electrolytic cell according to claim 1, characterized in that, The hinges include hinge one (2), hinge two (4), hinge three (6) and hinge four (7); the cylinders include cylinder one (3) and cylinder two (5); the heat-insulating door is composed of heat-insulating door one (1) and heat-insulating door two (8); The first heat-insulating door (1) and the second heat-insulating door (8) are connected by the third hinge (6); the first cylinder (3) and the second cylinder (5) are connected by the second hinge (4); the other end of the first cylinder (3) is connected to the first heat-insulating door (1) by the first hinge (2); the other end of the second cylinder (5) is connected to the second heat-insulating door (8) by the fourth hinge (7).

3. The renewable energy consumption device based on a carbon-free and solid waste-free aluminum electrolytic cell according to claim 1, characterized in that, The spiral winding specifically refers to the spiral winding from the bottom end to the top end of the carbon-free electrolytic cell (28), for a total of n turns, where n is a positive integer.

4. The renewable energy consumption device based on a carbon-free and solid waste-free aluminum electrolytic cell according to claim 1, characterized in that, The heat exchange device (10) also includes a liquid pipe insulation layer (13); the outer walls of the high temperature pipe one (14), high temperature pipe two (17) and high temperature pipe three (26) are all wrapped with a liquid pipe insulation layer (13).

5. The renewable energy consumption device based on a carbon-free and solid waste-free aluminum electrolytic cell according to claim 1, characterized in that, The heat exchange device (10) is also provided in another configuration, namely, it consists of a heat insulation pipe (29), a heat exchanger (30), a heat insulation pipe (31), a check valve (32), a hydraulic pump (33), and a pressure gauge (34); The heat exchanger (30) is composed of a spiral coil (35), a heat storage material (36), and an insulation tank (37). The heat storage material (36) is located inside the insulation tank (37) to form a closed space. The insulation tank (37) also contains a spiral coil (35), and the spiral coil (35) is surrounded by the heat storage material (36) on the outside. The two ends of the spiral coil (35) penetrate the top and bottom of the insulation tank (37), and are respectively referred to as end A and end B. The upper port of the coiled tube (9) is connected to the insulation tube (29), and the other end of the insulation tube (29) is connected to the upper A end of the coil (35). The bottom port of the coiled tube (9) is connected to the second insulation tube (31); the other end of the second insulation tube (31) is connected to the lower B end of the spiral coil (35); and along the direction from the second insulation tube (31) to the bottom of the heat exchanger (30), a pressure gauge (34), a hydraulic pump (33) and a one-way valve (32) are sequentially provided on the second insulation tube (31).

6. The renewable energy consumption device based on a carbon-free and solid waste-free aluminum electrolytic cell according to claim 5, characterized in that, The heat storage material (36) is a phase change heat storage material or a thermochemical heat storage material; specifically, it includes calcium chloride hexahydrate, sodium acetate trihydrate or organic alcohol.

7. The operating method of the renewable energy consumption device based on a carbon-free and solid waste-free aluminum electrolytic cell according to any one of claims 1 to 6, characterized in that, The specific steps are as follows: S1: In the mode where there is no power input, the carbonless electrolytic cell (28) starts passive heat preservation. The heat preservation door is closed by the operation of the cylinder. At this time, the flue gas and heat inside the carbonless electrolytic cell (28) cannot be dissipated, thereby achieving the effect of passive heat preservation. S2: Under normal operating conditions, the carbon-free electrolytic cell (28) loses too much residual heat and is not utilized. At this time, active cooling is used to store the residual heat. The room temperature solution is input through one end of the disc tube (9) via the heat exchange device (10), flows around the carbon-free electrolytic cell (28), and finally outputs from the other end of the disc tube (9). The room temperature solution carries away the heat of the carbon-free electrolytic cell (28), thus achieving active cooling. S3: When the room temperature solution becomes a hot solution after circulation or when there is no power input to the carbonless electrolytic cell (28), the hot solution stored in the renewable energy consumption device of the carbonless and solid waste-free aluminum electrolytic cell is used to conduct heat to the carbonless electrolytic cell (28) through flow to keep the heat balance of the carbonless electrolytic cell (28) stable; at this time, active heat preservation is started. First, the heat preservation door is closed by the operation of the cylinder. Then, the heat exchange device (10) outputs hot solution through one end of the disc tube (9). The hot solution flows around the carbonless electrolytic cell (28) through the disc tube (9) and finally outputs from the other end of the disc tube (9). The hot solution will transfer heat to the carbon-free electrolytic cell (28) during the flow process, thus achieving the effect of heat preservation; S4: During active cooling, the room temperature solution flows around the carbon-free electrolytic cell (28) through the disc tube (9), and can be turned into a hot solution by utilizing the heat dissipated by the carbon-free electrolytic cell (28), and stored in the heat exchange device (10); at the same time, when heat preservation is required, the hot solution flows around the carbon-free electrolytic cell (28) through the disc tube (9) and becomes a room temperature solution. In this way, a renewable energy consumption device based on a carbon-free and solid waste-free aluminum electrolytic cell is formed, realizing the cooling and heat preservation of the carbon-free electrolytic cell (28); the solution is heat-conducting oil, liquid metal or non-metal heat-conducting liquid.

8. The working method according to claim 7, characterized in that, The heat exchange device (10) is composed of a normal temperature tube (11), a normal temperature liquid tank (12), a high temperature tube (14), a high temperature liquid tank (15), a liquid tank insulation layer (16), a high temperature tube (17), a one-way valve (18), a hydraulic pump (19), a one-way valve (20), a normal temperature tube (21), a one-way valve (22), a hydraulic pump (23), a one-way valve (24), a normal temperature tube (25), and a high temperature tube (26); its working method is as follows: S1: Under normal operation of the carbon-free electrolytic cell (28), excessive residual heat is lost. At this time, the residual heat storage mode is carried out by active cooling, that is, the active cooling mode is started: the hydraulic pump two (23) is turned on to provide pressure to the ambient temperature pipe two (21) and ambient temperature pipe three (25). The one-way valve four (24) itself has a certain pressure. At this time, the solution in the ambient temperature liquid tank (12) will flow from the ambient temperature pipe two (21) into the ambient temperature pipe three (25), and then into the disc tube (9); After the solution flows around the carbon-free electrolytic cell (28) through the disc tube (9), it flows into the high-temperature tube three (26) from the other end of the disc tube (9). Since the one-way valve one (18) will prevent the solution from flowing into the high-temperature liquid tank (15) from the high-temperature tube two (17), the solution can only pass through the one-way valve two (20) and enter the high-temperature liquid tank (15) from the high-temperature tube one (14). At the same time, the hydraulic pump one (19) is always in the closed state, and the solution in the high-temperature liquid tank (15) will not flow out from the high-temperature tube two (17) below. S2: When the room temperature solution becomes a hot solution or when there is no power input to the carbonless electrolysis cell (28), the hot solution is used to keep the carbonless electrolysis cell (28) warm, so that the thermal balance of the carbonless electrolysis cell (28) remains stable. At this time, the active heat preservation is started: the hydraulic pump one (19) is opened to provide pressure to the high temperature tube three (26). The one-way valve two (20) itself has a certain pressure. At this time, the solution in the high temperature tank (15) will flow from the high temperature tube two (17) into the high temperature tube three (26), and then flow into the disc tube (9); After the solution flows around the carbon-free electrolytic cell (28) through the disc tube (9), the solution enters the ambient temperature tube three (25) from the other end of the disc tube (9). The one-way valve three (22) will prevent the solution from flowing into the ambient temperature liquid tank (12) from the ambient temperature tube two (21) below. The solution can only pass through the one-way valve four (24) and enter the ambient temperature liquid tank (12) from the ambient temperature tube one (11). At the same time, the hydraulic pump two (23) is always in the closed state, and the solution in the ambient temperature tube two (21) will not flow into the ambient temperature tube three (25).

9. The working method according to claim 7, characterized in that, When the heat exchange device (10) is composed of insulation pipe one (29), heat exchanger (30), insulation pipe two (31), one-way valve five (32), hydraulic pump three (33) and pressure gauge (34), its working method is as follows: S1: When the carbon-free electrolytic cell (28) is working normally, the heat storage mode is activated; the hydraulic pump three (33) is turned on, and the one-way valve five (32) ensures that the solution in the insulation tube two (31) flows in one direction only, and can only flow from the bottom layer to the top layer in the disc tube (9). Even if the hydraulic pump three (33) is closed, the solution in the insulation tube two (31) cannot flow back into the heat exchanger (30); Meanwhile, both the first insulation pipe (29) and the second insulation pipe (31) are wrapped with insulation material to prevent heat loss during the flow of the solution. When the carbon-free electrolytic cell (28) is working normally, the solution will carry away the residual heat of the carbon-free electrolytic cell (28) as it flows through the coiled tube (9), and eventually flow into the insulation tank (37). The spiral coil (35) in the insulation tank (37) will exchange heat with the heat storage material (36), thereby achieving the function of heat storage. The insulation tank (37) ensures that the heat of the heat storage material (36) will not be dissipated. The purpose of storing heat in the heat storage material (36) is achieved. S2: When there is no power input to the carbonless electrolytic cell (28), the heat preservation and regulation mode is activated. The heat energy in the heat storage material (36) will be transferred to the spiral coil (35), thereby heating the solution in the pipeline. At this time, the hydraulic pump three (33) is turned on, and the solution flows through the coil tube (9) to the carbonless electrolytic cell (28) for heating and heat preservation, so as to maintain the thermal balance of the carbonless electrolytic cell (28). The residual heat of the carbon-free electrolyzer (28) during normal operation is carried away by the room temperature solution and becomes a hot solution, which is then transferred to the heat storage material (36) in the heat storage tank (37) for storage. When the carbon-free electrolyzer (28) needs to be kept warm, the heat energy stored in the heat storage tank (37) can also be transferred to the carbon-free electrolyzer (28) by heating the solution in the spiral coil (35) and then transferring the heat through the coil tube (9), thus forming a renewable energy consumption device.

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