Thermal regeneration electrochemical refrigerator capable of continuously refrigerating and using method thereof

Abstract

The invention discloses a thermal regeneration electrochemical refrigerator capable of continuously refrigerating and a using method thereof. The thermal regeneration electrochemical refrigerator mainly comprises a battery movable disc, a lubricating heat conduction module, a transmission system, a supporting component and a charging and discharging device. The two battery movable discs are respectively arranged on two end surfaces of the lubricating heat-conducting module and can rotate in opposite directions relative to the lubricating heat-conducting module; the supporting component and the transmission system achieve rotation of the movable disc. And the charge-discharge device realizes heat absorption and release of the battery. The invention solves the problems that the electrochemical refrigeration technology at the present stage is inconvenient for continuous refrigeration and the refrigeration efficiency and the temperature span are limited due to cold and heat offset: by rotating the battery movable disc, the four steps of the TRER are simultaneously carried out in space, and the continuous output of the refrigerating capacity is realized; through superposition, rotation of the battery movable disc in the opposite direction and self-backheating through the temperature difference, the refrigerating capacity output can be increased, and the refrigerating efficiency and the refrigerating temperature span are improved. In addition, the device has the advantages of flexible design, compact structure, simplicity and convenience in heat regeneration, low mechanical noise and environmental friendliness.

Description

Technical Field

[0001] The present invention relates to the field of electrochemical refrigeration, and in particular to a thermal regeneration electrochemical refrigerator for sustainable refrigeration and a method for using the same. Background Art

[0002] In the context of the urgent need to address the energy crisis and environmental pollution, traditional refrigeration technology represented by cumbersome and bulky vapor compression refrigeration devices needs to find new development and solutions due to its characteristics of consuming non-renewable energy and emitting greenhouse gases.

[0003] As an alternative technical solution, environmentally friendly electrochemical refrigeration technology with simple structural components has excellent research prospects. Among them, the thermally regenerative electrochemical refrigerator (TRER) technology that combines electrochemical and thermodynamic cycles has the potential for various applications such as high refrigeration efficiency, less mechanical vibration, low working noise, eco-friendliness, and no emission of CFC gas.

[0004] TRER technology is aimed at secondary batteries with temperature coefficients. It realizes cooling based on thermodynamic reverse cycle and the endothermic effect generated by entropy increase in electrochemical reaction process. Therefore, the battery sequentially performs four processes: absorbing heat at the cooling end, moving to the room temperature end (battery heating up), releasing heat at the room temperature end, and moving to the cooling end (battery cooling), thereby realizing cooling for low temperature environment.

[0005] However, the current solid or solid / liquid two-phase TRER technology requires the above four thermodynamic processes to be carried out step by step in time, which makes it complicated to use and not convenient for continuous refrigeration. In addition, due to the existence of a cooling process that consumes a large amount of refrigeration, the battery refrigeration output is reduced, which greatly limits the refrigeration performance and refrigeration temperature range, thus hindering the practical application of this technology.

[0006] The present invention aims to improve the current structure of TRER technology to solve the current problems of discontinuous refrigeration and limited refrigeration efficiency, thereby promoting the further development of TRER technology. Summary of the invention

[0007] In order to solve the problems that the current solid or solid / liquid two-phase thermal regeneration electrochemical refrigeration technology (TRER) is difficult to continuously refrigerate, and the refrigeration efficiency and temperature span are low, the present invention provides a thermal regeneration electrochemical refrigerator with sustainable refrigeration and a method of using the same, including a battery moving disk, a lubricating heat-conducting module, a transmission system, a supporting member, and a charging and discharging device, wherein the battery moving disk is arranged on both end surfaces of the lubricating heat-conducting module and can rotate in opposite directions relative to the module, the battery moving disk has a micro-cell for built-in batteries, the batteries are fixed in the micro-cell of the moving disk by means of applying thermal conductive glue, etc., the batteries in the battery moving disk are in close contact with the lubricating heat-conducting spacer ring of the lubricating heat-conducting module; the transmission system is used to rotate the battery moving disk; the supporting member is used to fix the lubricating heat-conducting module and the transmission system, and limit the battery moving disk; the charging and discharging device performs charging and discharging operations on the battery, thereby completing heat absorption and release.

[0008] The battery moving disk includes a coaxially connected hollow shaft, a connecting disk, and a plurality of micro-cells along the circumferential direction; the center of the connecting disk is connected to the hollow shaft, and a plurality of micro-cells are evenly distributed on the outer circumference of the connecting disk. A lead hole is opened on one axial side surface of the connecting disk corresponding to each micro-cell, and the other axial side surface of the connecting disk corresponding to each micro-cell and the outer circumference of the connecting disk are open; a plurality of batteries are respectively arranged in the corresponding micro-cells.

[0009] Furthermore, the battery may have a negative temperature coefficient, which releases heat when discharged at high temperatures and absorbs heat when charged at low temperatures. The battery may also have a positive temperature coefficient, which releases heat when charged at high temperatures and absorbs heat when discharged at low temperatures.

[0010] Furthermore, the rotating space of the battery moving disk can be divided into a high-temperature heat release groove, a heat recovery zone and a low-temperature heat absorption groove.

[0011] Furthermore, for practical refrigeration applications, the high-temperature heat release groove is the area where the battery in the microcell releases heat to high temperature, which is the room temperature end, and the low-temperature heat absorption groove is the area where the battery in the microcell absorbs heat to low temperature, which is the refrigeration end.

[0012] Furthermore, the high-temperature heat release groove and the low-temperature heat absorption groove are unrelated to the rotation of the battery moving disk, and are artificially selected areas with fixed absolute positions; the high-temperature heat release groove and the low-temperature heat absorption groove are 180° symmetrical, usually corresponding to the heat release and heat absorption areas of the battery in a single microcell, corresponding to the battery charging and discharging process, and other areas are heat recovery areas.

[0013] Furthermore, the batteries in the battery dynamic disk are connected to the charging and discharging device via wires to realize the charging and discharging process, so that an electrochemical reaction occurs at the cooling end to absorb heat and an electrochemical reaction occurs at the room temperature end to release heat, thereby realizing a cooling effect; during the charging and discharging process, the dynamic disk is stationary, and after the battery charging and discharging is completed, the first and second battery dynamic disks each rotate one microcell position; the batteries in the microcells of the heat recovery zone are self-heated under the action of the temperature difference.

[0014] The lubricating heat-conducting module is integrated with a lubricating heat-conducting isolating ring, a heat-insulating isolating ring and a heat-insulating layer. The heat-insulating layer is symmetrical up and down based on the isolating ring.

[0015] The transmission system consists of a motor, a pulley and a transmission belt. The motor has a rotating shaft; the small pulley is installed on the rotating shaft of the motor; one end of the transmission belt is connected to the small pulley, and the other end is connected to the large pulley on the hollow shaft of the battery moving disk.

[0016] The support member is composed of a support plate, a support shaft, a bearing, and a base. The support plate is fixed to the base by means of screws or the like; the support shaft is fixedly connected to the support plate; and the support shaft is connected to the battery moving disk via a bearing. The battery moving disks on both end surfaces of the lubricating heat-conducting module are respectively the first battery moving disk and the second battery moving disk. The rotating shaft of the motor is connected to the large pulley on the hollow shaft of the battery moving disk by a transmission belt via a small pulley. The support shaft vertically penetrates the support plate, the first battery moving disk, the lubricating heat-conducting module, and the second battery moving disk. The support shaft is connected to the hollow shaft of the battery moving disk by a bearing. The lubricating heat-conducting module is fixed to the base by means of screws or the like through an external insulation layer. The motor on the side of the first battery moving disk drives the first battery moving disk to move in a clockwise (counterclockwise) direction, and the motor on the side of the second battery moving disk drives the second battery moving disk to move in a counterclockwise (clockwise) direction, so that the batteries in the one-to-one corresponding micro-cells of the first battery moving disk and the second battery moving disk can be self-heated by temperature difference transmission through the lubricating heat-conducting isolation ring of the lubricating heat-conducting module, thereby realizing self-heating.

[0017] Compared with the existing TRER technology which only uses a single battery for electrochemical refrigeration but cannot continuously output refrigeration capacity and has low refrigeration efficiency, the beneficial technical effects of the present invention are embodied in the following aspects:

[0018] 1. The existing TRER technology uses the battery to absorb heat at the cooling end, heat up, release heat at the room temperature end, and cool down in steps in time to complete a cycle, and only realizes cooling output in the cooling end heat absorption step; while the present invention designs the battery to be distributed in a circular manner and to move in a rotating manner. After the batteries at the cooling end and the room temperature end complete the forward and reverse electrochemical reactions, the transmission system rotates the battery moving disk to allow the next pair of batteries to enter the cooling end and the room temperature end, ensuring that there are always batteries at the cooling end and performing the electrochemical forward reaction of entropy increase and heat absorption, thereby ensuring the continuous output of cooling capacity and realizing continuous cooling.

[0019] Therefore, the present invention expands the four time-step processes of TRER technology to the spatial dimension, that is, by rotating the moving disk carrying the batteries, the four steps of heat absorption at the cooling end, heating, heat release at the room temperature end, and cooling are carried out simultaneously in different areas, thereby realizing continuous cooling output of solid-state or solid / liquid two-phase thermal regeneration electrochemical refrigeration (TRER) technology.

[0020] Theoretically, under the premise of not changing any conditions, the present invention can always maintain the refrigeration output without interruption.

[0021] 2. In the refrigeration cycle achieved by the existing TRER technology, there is a battery cooling process, and a large amount of refrigeration capacity is consumed, which reduces the battery refrigeration output, thereby limiting the refrigeration performance and refrigeration temperature span; while the present invention designs the superposition and reverse rotation of two battery dynamic disks, which can spatially superimpose the heating / cooling process of the first battery dynamic disk and the cooling / heating process of the second battery dynamic disk, and can use the temperature difference between the batteries in the two battery dynamic disks to achieve "countercurrent heat recovery", thereby improving the heat recovery efficiency of the device, reducing the consumption of cold, and thus improving the refrigeration performance and refrigeration temperature span of the device.

[0022] In the present invention, the more micro-cells are divided, the higher the heat recovery efficiency and the larger the refrigeration temperature span. Ideally, the heat recovery efficiency can approach or reach 100%; for example, when the number of micro-cells on one side between the refrigeration end and the room temperature end is 4, the heat recovery efficiency can reach 80%. At this time, compared with no heat recovery, when the temperature difference is 10°C, the refrigeration coefficient can be increased by 20, the refrigeration efficiency can be increased by 60%, and the maximum refrigeration temperature span can be increased by 50°C.

[0023] 3. The designed rotary heat recovery structure has the advantages of flexible design, compact structure, simple heat recovery and environmental friendliness. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of the first battery dynamic disk of the present invention.

[0025] Figure 2 It is a schematic structural diagram of the second battery dynamic disk of the present invention.

[0026] Figure 3 It is a schematic structural diagram of the built-in battery of the present invention.

[0027] Figure 4 It is a schematic diagram of superimposing the battery dynamic disk of the present invention.

[0028] Figure 5 It is a schematic diagram of the overall structure of the transmission of the present invention.

[0029] Serial numbers in the above figure: first battery moving disk 1, battery groups 1-1 to 1-36 in the first moving disk, second battery moving disk 2, battery groups 2-1 to 2-36 in the second moving disk, lubricating heat conductive module 3, lubricating heat conductive isolation ring 3-1, thermal insulation isolation ring 3-2, thermal insulation layer 3-3, battery 4, battery positive electrode 4-1, battery separator 4-2, battery negative electrode 4-3, battery positive electrode collector 4-4, battery negative electrode collector 4-5, first support plate 5, first motor 6, support shaft 7, first small pulley 8, first transmission belt 9, first large pulley 10, base 11, second support plate 12, second motor 13, second small pulley 14, second transmission belt 15, second large pulley 16, high temperature heat release groove 17, low temperature heat absorption groove 18, charging and discharging device 19, wire 20. DETAILED DESCRIPTION

[0030] In order to make the technical solution of the embodiment of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] This embodiment provides a thermal regeneration electrochemical refrigerator for sustainable refrigeration and a method of using the same. Figure 1 to Figure 5 :

[0032] refer to Figure 1 , Figure 2 :

[0033] The battery moving disk is composed of a number of micro-cells. The first battery moving disk 1 is composed of 1-1 to 1-36 micro-cells, and the second battery moving disk is composed of 2-1 to 2-36 micro-cells. A battery 4 is placed in each micro-cell. This embodiment is described with 36 micro-cells. In actual applications, the number of micro-cells is flexibly selected according to needs. Take the micro-cells in the first battery moving disk 1 for description. Its outer shell includes the left side wall of the outer shell, the right side wall of the outer shell, the inner wall of the outer shell, and the upper wall of the outer shell, but does not include the lower wall and the outer wall. There are two small holes in the upper wall of the outer shell. The micro-cell is designed without a lower wall to recover heat through the lubricating heat-conducting isolation ring 3-1 of the lubricating heat-conducting module 3. The micro-cell has no outer wall to ensure that the battery 4 can smoothly exchange heat when it rotates to the high-temperature heat release groove 17 and the low-temperature heat absorption groove 18. The position of the battery 4 is fixed by means such as gluing between the inner wall, left wall, and right wall of the micro-cell and the battery 4.

[0034] refer to Figure 3 :

[0035] The battery 4 is composed of a battery positive electrode 4-1, a battery separator 4-2, a battery negative electrode 4-3, a battery positive electrode current collector 4-4, and a battery negative electrode current collector 4-5; the positive and negative electrode current collectors of the battery 4 are directly opposite to and penetrate the small holes on the upper wall of the microcell, and the battery 4 can be connected to the charging and discharging device 19 via an external wire 20 through the small holes to realize charging and discharging, thereby completing heat absorption and release.

[0036] refer to Figure 4 :

[0037] The bottom side of the first battery movable disk 1 is pressed against one side of the lubricating heat conductive spacer 3-1 in the lubricating heat conductive module 3 with lubricating thermal paste; the other side of the lubricating heat conductive spacer 3-1 in the lubricating heat conductive module 3 is pressed against the upper side of the second battery movable disk 2 with lubricating thermal paste. During the stacking and rotation process, the first battery movable disk 1 and the second battery movable disk 2 always maintain a one-to-one correspondence of the micro-cells in space. The first battery movable disk 1 and the second battery movable disk 2 rotate in opposite directions and at the same speed; the single rotation amount of the first battery movable disk 1 and the second battery movable disk 2 is one micro-cell. The lubricating heat conductive module 3 is composed of a lubricating heat conductive spacer 3-1, a thermal insulation spacer 3-2 and a thermal insulation layer 3-3. The thermal insulation layer 3-3 of the lubricating heat conductive module 3 is symmetrical up and down based on the lubricating heat conductive isolation ring 3-1 and the thermal insulation isolation ring 3-2; the thermal insulation layer 3-3 surrounds the first battery movable disk 1 and the second battery movable disk 2, but does not include the high-temperature heat release groove 17 and the low-temperature heat absorption groove 18; the thermal insulation layer 3-3 is symmetrical left and right based on the high-temperature heat release groove 17 and the low-temperature heat absorption groove 18; a partial air gap is left between the thermal insulation layer 3-3 and the outer sides of the two battery movable disks to facilitate the rotation of the movable disks.

[0038] refer to Figure 5 :

[0039] The high-temperature heat release groove 17 corresponds to the target area where the battery 4 in each microcell periodically releases heat during the rotation process, corresponding to the room temperature end in the refrigeration application; the low-temperature heat absorption groove 18 corresponds to the target area where the battery in each microcell periodically absorbs heat during the rotation process, corresponding to the refrigeration end in the refrigeration application; the area actually surrounded by the thermal insulation layer 3-3 corresponds to the area where the battery 4 in each microcell has temperature difference self-heating during the rotation process, that is, the reheating zone. The first reheating zone is the upper half area from the low-temperature heat absorption groove 18 to the high-temperature heat release groove 17; the second reheating zone is the lower half area from the low-temperature heat absorption groove 18 to the high-temperature heat release groove 17. Charging and discharging devices such as wires are arranged near the high-temperature heat release groove 17 and the low-temperature heat absorption groove 18; when the first battery moving disk 1 and the second battery moving disk 2 rotate, the battery 4 in the microcell located in the high-temperature heat release groove 17 and the low-temperature heat absorption groove 18 realizes charging and discharging through the small holes on the upper side of the microcell to realize the positive and negative current collectors connected to the charging and discharging device 19 via the wire 20 to achieve refrigeration.

[0040] refer to Figure 5 :

[0041] A heat regeneration electrochemical refrigerator for sustainable refrigeration mainly includes a first battery moving disk 1, a second battery moving disk 2 and a battery 4 related to electrochemical refrigeration, and an efficient heat recovery transmission component for realizing continuous refrigeration, including: a lubricating heat conduction module 3, a support shaft 7, a base 11, a support plate, a motor, a pulley, and a transmission belt. The specific connection between the transmission structures is: the support shaft 7 vertically penetrates the first support plate 5, the first battery moving disk 1, the lubricating heat conduction module 3, the second battery moving disk 2, and the second support plate 12. The support shaft 7 is fixedly connected to the support plate. The support shaft 7 is connected to the hollow shaft of the battery moving disk by a bearing. The lubricating heat conduction module 3 is fixed to the base 11 through the insulation layer 3-1 by means of screws or the like. The first support plate 5 and the second support plate 12 are fixed to the base 11 by means of screws or the like. A motor is fixed to each support plate by means of screws or the like. The structure of the motor has a rotating shaft. The rotating shaft of the motor is fixed with a small pulley, and is connected to the large pulley on the hollow shaft of the battery moving disk by a transmission belt to realize transmission.

[0042] The working principle of the present invention is described in detail as follows:

[0043] The electrochemical reaction of a secondary battery with a temperature coefficient during the charge and discharge process will produce entropy changes, accompanied by endothermic and exothermic effects, and can exchange heat with the outside world. Among them, the entropy increase process of the battery produces an endothermic effect, and the entropy reduction process produces an exothermic effect. If an electrochemical reaction is an entropy increase reaction in the forward direction, the reverse direction is an entropy reduction reaction. For the convenience of description, the entropy increase reaction of the battery is defined as the electrochemical forward reaction, and the entropy reduction reaction of the battery is defined as the electrochemical reverse reaction. Therefore, the purpose of refrigeration can be achieved by using the electric energy brought by the charging and discharging device to drive the battery to perform an electrochemical forward reaction at the cooling end, and the entropy increase absorbs heat from the cooling end. In order to achieve cyclic refrigeration, this refrigeration method should comply with the basic thermodynamic laws of refrigeration, and its thermodynamic process should include four processes: heat absorption at the cooling end, temperature rise, heat release at the room temperature end, and cooling; that is, the core principle of cyclic refrigeration is to transfer heat from the cooling end to the room temperature end in some way, so as to achieve the effect of lowering the temperature of the cooling end or keeping it low. Therefore, the battery is connected to the charging and discharging device via a wire at the cooling end to perform an electrochemical forward reaction, and the entropy increases and absorbs heat from the cooling end. After the process is completed, the battery in the open circuit state should be moved to the room temperature end to raise its temperature to room temperature. Then the transmission battery is connected to the charging and discharging device via a wire at the room temperature end to perform an electrochemical reverse reaction, and the entropy decreases and releases heat to the room temperature end; after the process is completed, the battery in the open circuit state is moved to the cooling end, and the battery returns to its initial state, thus completing a refrigeration cycle. In summary, the core of using this battery for refrigeration is: the electric energy brought by the charging and discharging device under different temperature environments drives the forward and reverse electrochemical reactions of the battery to produce an endothermic effect, thereby transferring heat from the cooling end to the room temperature end to achieve the purpose of refrigeration.

[0044] Based on the cooling principle of a single battery, the present invention designs a battery dynamic disk structure with reverse rotation to improve the battery cooling performance and cooling temperature range, and can achieve continuous cooling output of the battery. The coefficient of performance (COP) for measuring the battery cooling performance = actual cooling capacity / electrical energy, that is, In the formula, ∫T L The term dS is the theoretical cooling capacity of the battery at the low temperature end, (1-η HX )C p ΔT is the cooling capacity required for battery cooling after heat recovery, I 2 R L t is the cooling capacity caused by the internal resistance of the battery, W is the consumed electrical energy; Refrigeration efficiency = Refrigeration coefficient / Refrigeration coefficient of Carnot cycle, that is, Refrigeration temperature range Among them, T L is the temperature of the cooling end, S is the entropy, η HX is the heat recovery efficiency, C p is the battery heat capacity, ΔT is the temperature span, I is the current, R L is the internal resistance of the battery at low temperature, t is the time, W is the consumed power, T a is the ambient temperature, and ΔS is the entropy change during the electrochemical forward reaction driven by electric energy or the electrochemical reverse reaction driven by electric energy. Therefore, according to the calculation formulas of the refrigeration coefficient, refrigeration efficiency, and refrigeration temperature span, the improvement of the heat recovery efficiency can reduce the cooling capacity still required for battery cooling after heat recovery, thereby improving the refrigeration coefficient, refrigeration efficiency, and refrigeration temperature span.

[0045] In short, the counter-rotating battery disk structure can improve the heat recovery efficiency in the above formula, thereby optimizing the battery's cooling performance and cooling temperature range. The specific principle is: refer to Figure 5, a single-layer battery dynamic disk is composed of several batteries, and the number of batteries in the left and right layers is the same. One battery in each of the left and right layers at the cooling end and the room temperature end is connected to the charging and discharging device through a wire to carry out the electrochemical reaction process, which is 180° centrally symmetrical in space; the other batteries are "heat recovery units" that form a heat recovery zone, that is, connected between the cooling end and the room temperature end, and "countercurrent heat recovery" is carried out through the reverse rotation of the battery dynamic disk. This mechanical rotation "countercurrent heat recovery" method is similar to the traditional reverse flow heat recovery method of hot and cold fluids, but because the battery is solid / liquid, a simple fluid direct heat recovery structure cannot be used. Therefore, a mechanical left and right layer rotation structure and a battery "heat recovery unit" are designed to achieve heat recovery of solid / liquid substances. The traditional fluid heat recovery method has an infinite number of "heat recovery units" because the temperature is continuous, which is infinite heat recovery; for this structure, each "heat recovery unit" is the temperature of each battery, so the number of its "heat recovery units" is the number of batteries connecting the cooling end and the room temperature end, that is, step heat recovery. If there are n "heat recovery units", the heat recovery efficiency is n / (n+1). Because there are two semicircular battery "heat recovery unit" groups between the cooling end and the room temperature end in the rotating structure, there are two heat recovery zones, so two "countercurrent heat recovery" processes occur. In addition, a single battery needs to go through four processes of the refrigeration cycle in time, but this structure can ensure that there is always one battery on the left and right layers of the cooling end to carry out the electrochemical entropy increase and heat absorption reaction process, thereby achieving continuous cooling output.

[0046] The working process of the present invention is described in detail as follows:

[0047] refer to Figure 4 and Figure 5 In the first battery dynamic disk 1 and the second battery dynamic disk 2, the batteries in the low-temperature heat absorption groove 18 and the high-temperature heat release groove 17 are connected to the charging and discharging device via the wire 20 to realize charging and discharging accompanied by heat absorption and release, and the remaining batteries are in an open circuit state for heat recovery; after the charging and discharging is completed, the first motor 6 drives the first battery dynamic disk 1 to rotate one micro-element clockwise through the first transmission belt 9, and at the same time, the second motor 13 drives the second battery dynamic disk 2 to rotate one micro-element counterclockwise through the second transmission belt 15, so that the next batch of batteries enter the low-temperature heat absorption groove 18 and the high-temperature heat release groove 17 for charging and discharging, and the remaining batteries continue to recover heat; by rotating the battery dynamic disk with the motor, continuous charging and discharging and heat absorption and release can be realized at the room temperature end and the cooling end.

[0048] Taking the microelement batteries 1-1 and 1-19 on the first battery dynamic disk 1 and 2-1 and 2-19 on the second battery dynamic disk as examples, the process is specifically described, and the battery with a negative temperature coefficient is used for demonstration:

[0049] (1) Batteries 1-1 and 2-1 enter the room temperature end area to discharge and release heat to the environment; at the same time, batteries 1-19,

[0050] 2-19 enters the cooling end and is charged by the charging and discharging device, absorbing heat from the environment for cooling. At this time, the one-to-one corresponding microcells between batteries 1-2 to 1-18 and batteries 2-2 to 2-18, and between batteries 1-20 to 1-36 and batteries 2-20 to 2-36 are at the same temperature, without heat recovery;

[0051] (2) After the charge and discharge are completed, the first battery moving disk 1 rotates one microcell clockwise, and the second battery moving disk 2 rotates one microcell in the opposite direction. Batteries 1-36 and 2-2 enter the room temperature end and discharge and release heat through the charge and discharge device. Batteries 1-18 and 2-20 enter the cooling end and charge and absorb heat. At this time, batteries 1-1 and 2-1 are in a high temperature state, and batteries 1-19 and 2-19 are in a low temperature state. Battery 1-1 provides heat to 2-3, battery 1-19 provides coldness to 2-21, battery 2-1 provides heat to 1-35, and battery 2-19 provides coldness to 1-17, realizing independent heat recovery in the two heat recovery zones;

[0052] (3) After the charge and discharge are completed, the two battery disks rotate one micro-element in the original direction, so that battery 1-35 and battery 2-3 enter the room temperature end to discharge and release heat, and battery 1-17 and battery 2-21 enter the cooling end to charge and absorb heat. At this time, battery 1-1 gives heat to 2-5, battery 1-36 gives heat to 2-4, battery 1-19 gives coldness to 2-23, and battery 1-18 gives coldness to 2-22, realizing independent heat recovery.

[0053] (4) Similarly, after rotating grid by grid, each battery in the moving disk will realize independent charging, discharging and heat recovery without interfering with each other, thus completing the four-step thermodynamic process of TRER in the time dimension and realizing these four thermodynamic steps simultaneously in the space dimension, achieving the effect of continuous cooling; in addition, through multiple self-heating of the batteries in the micro-cells, the cooling efficiency can be improved by reducing the consumption of cold energy.

[0054] Below, specific embodiments are given to illustrate:

[0055] Example

[0056] (1) Air conditioning

[0057] Air conditioning refers to equipment that uses artificial means to adjust and control the temperature and other parameters of the ambient air in a building or structure. In other words, it can move indoor heat to the outside through refrigeration technology to achieve the purpose of local space cooling. In actual use, in order to meet human comfort, it is generally allowed to control the indoor temperature between 16 and 32 degrees Celsius. The reference applicable area of ​​air conditioning is generally 12-18m 2, the required cooling capacity is 115-145W. The cooling end of the proposed high-efficiency electrochemical refrigeration device is connected to the indoor environment, and the room temperature end is connected to the outdoor environment. The device performs an electrochemical forward reaction in the battery indoors of the building, increasing entropy and absorbing heat, and performs an electrochemical reverse reaction in the battery in the outdoor environment, decreasing entropy and releasing heat. When the electrochemical reaction is completed, the transmission system continues to rotate the two battery disks in opposite directions, thereby continuously moving the indoor heat to the outdoors, achieving the purpose of cooling the indoor space and realizing continuous cooling. The specific working process is:

[0058] 1)Reference Figure 4 and Figure 5 At the initial moment, the batteries in the microcells facing the high-temperature heat release groove 17 and the low-temperature heat absorption groove 18 in the building undergo electrochemical reverse entropy reduction and forward entropy increase reactions driven by electric energy, thereby completing the process of releasing heat to the outdoor environment and absorbing heat from the indoor environment to achieve cooling; during the electrochemical reaction of the battery, the battery dynamic disk remains stationary.

[0059] 2)Reference Figure 4 and Figure 5 , when the batteries facing the high-temperature heat release groove 17 and the low-temperature heat absorption groove 18 have finished the electrochemical reaction, the first battery moving disk is driven by the first transmission system to rotate in the clockwise direction of the right-viewing angle of the device; the second battery moving disk is driven by the second transmission system to rotate in the counterclockwise direction of the right-viewing angle of the device; the rotation amount of the two battery moving disks is one micro-grid; the two batteries on each battery moving disk that are 180° symmetrical with the hollow axis as the symmetry center are a pair of batteries; after rotation, the next pair of batteries on the two battery moving disks enter the high-temperature heat release groove 17 and the low-temperature heat absorption groove 18 respectively, and are connected to the charging and discharging device through wires to perform electrochemical reverse reaction outdoors to reduce entropy and release heat, and to perform electrochemical forward reaction indoors to increase entropy and absorb heat. When the electrochemical reaction is completed, the transmission system continues to rotate the two battery moving disks in the opposite direction to ensure that there are always batteries at the indoor refrigeration end and perform electrochemical forward reaction with entropy increase and heat absorption, thereby ensuring the continuous output of cooling capacity and achieving continuous cooling.

[0060] 3)Reference Figure 5, the upper half area from the high-temperature heat release groove 17 to the low-temperature heat absorption groove 18 is the first heat recovery zone, and the lower half area is the second heat recovery zone. In step 2, the first battery moving disk and the second battery moving disk rotate one microcell grid in opposite directions at the same speed. Among them, the first battery moving disk rotates clockwise at the right viewing angle, then the first battery moving disk in the first heat recovery zone is the trend of the battery rotating from indoors to outdoors, and heat is required for heating, and the first battery moving disk in the second heat recovery zone is the trend of the battery rotating from outdoors to indoors, and cold is required for cooling; the second battery moving disk rotates counterclockwise at the right viewing angle, then the second battery moving disk in the first heat recovery zone is the trend of the battery rotating from outdoors to indoors, and cold is required for cooling, and the second battery moving disk in the second heat recovery zone is the trend of the battery rotating from indoors to outdoors, and heat is required for heating. Therefore, during the rotation of the battery movable disk, a heat recovery process occurs in the first heat recovery zone, in which the batteries of the second battery movable disk transfer heat to the batteries of the adjacent first battery movable disk. In the second heat recovery zone, a heat recovery process occurs in which the batteries of the first battery movable disk transfer heat to the batteries of the adjacent second battery movable disk. The heat transfer is achieved through the lubricating heat-conducting isolation ring 3-1.

[0061] After the above working process, when the outdoor ambient temperature is 30°C, the indoor temperature of the building drops to 20°C, and the heat recovery efficiency of the device is 80% (when the number of "heat recovery units" connecting indoor and outdoor is 4). According to theoretical calculations, the cooling capacity of the device is 35kJ / kg, the coefficient of refrigeration (COP) can reach 25, and the cooling efficiency is 78%. Compared with the performance of a single battery without heat recovery, the rotary heat recovery structure device designed in the present invention can significantly improve the COP, cooling efficiency, cooling temperature span and other performance of the battery. For example, when the temperature difference is 10°C, the cooling coefficient can be increased by 20, the cooling efficiency can be increased by 60%, and the cooling temperature span can be increased by 50°C.

[0062] (2) Refrigerator or cold storage

[0063] The refrigerator or cold storage can be used for low-temperature storage of production and living items. The refrigeration end of the proposed high-efficiency electrochemical refrigeration device is connected to the refrigerator cavity or cold storage, and the room temperature end is connected to the external environment. The specific working process is similar to that of embodiment (1). When the ambient temperature is 30°C and the required temperature in the refrigerator cold storage room or cold storage is 5°C, the refrigeration coefficient (COP) of the device reaches 6 and the refrigeration efficiency is 54%.

[0064] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principles of the present invention shall be equivalent replacement methods and shall be included in the protection scope of the present invention.

Claims

1. A thermal regeneration electrochemical refrigerator with sustainable refrigeration, characterized in that: It includes a battery dynamic disk, a lubrication and heat conduction module, a transmission system and a supporting structure, and a charging and discharging device. The battery dynamic disk contains a battery. The charging and discharging device can adjust the heat amount of the battery. The charging and discharging device can control the charge and discharge of the battery via wires. The battery can realize rotational heat recovery based on other components, thereby achieving a continuous cooling effect.

2. A thermal regeneration electrochemical refrigerator for sustainable refrigeration according to claim 1, characterized in that: The battery moving disk is provided with two groups with the same structure. A plurality of micro-grids are provided along the circumferential direction of the battery moving disk. Batteries are provided in the micro-grids. The rotating space of the battery moving disk is divided into a high-temperature heat release groove, a heat recovery zone and a low-temperature heat absorption groove in coordination with the micro-grids. The high-temperature heat release groove and the low-temperature heat absorption groove are symmetrically arranged at 180°.

3. The thermal regeneration electrochemical refrigerator with sustainable refrigeration according to claim 1, characterized in that: The battery dynamic disk includes a coaxially connected hollow shaft and a connecting disk, the center of the connecting disk is connected to the hollow shaft, the micro-cells are arranged along the outer circumference of the connecting disk, and a lead hole is provided on one axial side surface of the connecting disk to match each micro-cell, and the other side surface corresponding to each micro-cell and the outer circumference of the connecting disk are both open.

4. The thermal regeneration electrochemical refrigerator for sustainable refrigeration according to claim 2, characterized in that: The battery is a secondary battery with a temperature coefficient; The battery comprises a positive electrode, a negative electrode, a battery separator, a positive electrode current collector and a negative electrode current collector.

5. The thermal regeneration electrochemical refrigerator with sustainable refrigeration according to claim 1, characterized in that: The lubricating heat-conducting module comprises a lubricating heat-conducting spacer ring, a heat-insulating spacer ring and a heat-insulating layer which are integrally arranged.

6. The thermal regeneration electrochemical refrigerator with sustainable refrigeration according to claim 1, characterized in that: The transmission system is provided with two groups with the same structure, and the two groups of transmission systems are respectively arranged at the two ends of the support shaft; The transmission system includes a motor and a belt transmission system. The motor shaft of the motor is parallel to the supporting shaft. The belt transmission system includes a small pulley, a large pulley and a transmission belt. The small pulley is fixed on the motor shaft, and the large pulley is fixed on the hollow shaft of the battery dynamic disk on the same side. The transmission belt is straddled on the small pulley and the large pulley, and the rotating shaft of the motor is connected to the large pulley through the small pulley with the transmission belt.

7. The thermal regeneration electrochemical refrigerator for sustainable refrigeration according to claim 1, characterized in that: The support member includes a support shaft, a pair of support plates and a base; the two ends of the support shaft are respectively fixedly connected to the corresponding support plates, the lower ends of the pair of support plates are fixedly arranged on the base, and the support shaft passes through the hollow shaft and the heat preservation ring; The support shaft and the hollow shaft are connected by a bearing.

8. A thermal regeneration electrochemical refrigerator for sustainable refrigeration according to claims 1-7, characterized in that: The two groups of battery moving disks are respectively arranged on both sides of the heat-insulating spacer ring of the lubricating heat-conducting module, and the supporting member passes through the battery moving disk and the heat-insulating spacer ring and is connected with the transmission system.

9. The method for using a thermal regeneration electrochemical refrigerator for sustainable refrigeration according to any one of claims 1 to 8, characterized in that: It includes two counter-rotating battery moving disks, and in the microcell corresponding to the low-temperature heat absorption tank space, the battery is cooled when the charging / discharging operation is performed through the charging and discharging device.

10. The method for using a thermal regeneration electrochemical refrigerator for sustainable refrigeration according to claim 9, characterized in that: The reheating zone includes a first reheating zone from the low-temperature heat absorbing groove to the upper half of the high-temperature heat releasing groove, and a second reheating zone from the low-temperature heat absorbing groove to the lower half of the high-temperature heat releasing groove; The device includes a low-temperature end heat absorption, temperature rise, high-temperature end heat release and cooling process, wherein: The batteries in the low-temperature heat absorption tank and the high-temperature heat release tank are charged and discharged respectively, and the remaining batteries are in an open circuit state for heat recovery; After the battery in the corresponding microcell is charged and discharged, the two battery moving disks rotate one microcell clockwise and counterclockwise respectively through the transmission system, so that the next batch of batteries enter the low-temperature heat absorption tank and the high-temperature heat release tank for charging and discharging, and the remaining batteries continue to recover heat, finally achieving continuous cooling output; The heat is recovered between the batteries that have completed charging and discharging on the two battery dynamic disks and the batteries that are about to enter the cooling end and the room temperature end through lubricating heat-conducting isolation rings.

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