A kind of electrolyte purification device and purification method

Abstract

The present application provides an electrolyte purification device, wherein a solid impurity purification component is installed in a solid impurity purification barrel and is used to purify solid impurities in the electrolyte. Multiple anode electrodes and multiple cathode electrodes are installed in the impurity ion purification barrel and are electrically connected to a DC power supply through wires. A delivery pump is installed between the solid impurity purification barrel and the impurity ion purification barrel, and is configured to pump the electrolyte in the solid impurity purification barrel into the impurity ion purification barrel. The present application also provides an electrolyte purification method, comprising the following steps: primary purification, separating solid impurities through a solid impurity purification mechanism; secondary purification, separating impurity ions through an impurity ion purification mechanism. The electrolyte purification device provided in the present application, with the cooperation of the solid impurity purification component and the impurity ion purification mechanism, can greatly improve the purity of the vanadium electrolyte, and has a good purification effect, thereby helping to improve the stability and electrochemical properties of the vanadium electrolyte.

Description

Technical Field

[0001] The present application relates to the technical field of electrolyte treatment equipment, and in particular to an electrolyte purification device and a purification method thereof. Background Art

[0002] Vanadium battery is an energy storage device based on the redox reaction of vanadium ions, with the characteristics of high energy density, long life, high safety, etc. Vanadium battery has broad application prospects in the field of large-scale energy storage, especially in the smooth output of renewable energy, peak load regulation and frequency regulation of power grid, etc.

[0003] Vanadium electrolyte is the energy storage active material and energy conversion core of vanadium battery. During the production process, there are a large number of solid impurities and impurity ions in vanadium electrolyte. Due to the presence of impurities, it is easy to affect the stability and electrochemical properties of vanadium electrolyte, and it is also easy to affect the operating cost and service life of vanadium electrolyte. Therefore, the concentration and purity of vanadium electrolyte have a significant impact on the performance of vanadium battery. Among the many impurity ions, iron ion is one of the most common and high-content impurity ions in vanadium electrolyte raw materials. During the operation of vanadium battery, it will catalyze electrode reaction, resulting in self-discharge and energy loss. In the related art, chemical precipitation, solvent extraction or ion exchange is usually used to remove iron ions. When using the above methods to remove iron ions in vanadium electrolyte, there are problems such as large consumption of reagents, difficult removal of precipitates, and serious secondary pollution, and it will affect the purity of vanadium electrolyte. Therefore, it is necessary to find a clean and efficient purification device or purification method that is more in line with the characteristics of vanadium electrolyte. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide an electrolyte purification device and a purification method thereof to solve the technical problem that the purification in the prior art is not clean and efficient enough.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide an electrolyte purification device, comprising:

[0006] A solid impurity purification mechanism, the solid impurity purification mechanism comprises a solid impurity purification barrel and a solid impurity purification component, the solid impurity purification component is installed in the solid impurity purification barrel and is used to purify solid impurities in the electrolyte;

[0007] An impurity ion purification mechanism, the impurity ion purification mechanism comprises an impurity ion purification barrel, a plurality of anode electrodes, a plurality of cathode electrodes and a DC power supply, the plurality of anode electrodes and the plurality of cathode electrodes are both installed in the impurity ion purification barrel and electrically connected to the DC power supply through wires;

[0008] A delivery pump, which is installed between the solid impurity purification barrel and the impurity ion purification barrel and is configured to pump the electrolyte in the solid impurity purification barrel into the impurity ion purification barrel;

[0009] The number of anode electrodes is equal to the number of cathode electrodes.

[0010] Optionally, the impurity ion purification mechanism further includes a plurality of vibration components, each of which is installed in the impurity ion purification barrel and is configured to drive the plurality of anode electrodes and the plurality of cathode electrodes to vibrate;

[0011] The number of vibration components is equal to the sum of the number of anode electrodes and the number of cathode electrodes.

[0012] Optionally, the vibration assembly includes a mounting bracket, a vibrator, a transmission bracket, a protective bracket and a corrugated tube, the mounting bracket is mounted on the impurity ion purification barrel, the vibrator is mounted on the mounting bracket, the transmission bracket is mounted on the output end of the vibrator and is configured to drive the anode electrode or the cathode electrode to vibrate, the protective bracket is mounted on the anode electrode or the cathode electrode and is sleeved on the anode electrode or the cathode electrode, and the corrugated tube is installed between the impurity ion purification barrel and the protective bracket.

[0013] Optionally, the protective bracket includes a protective flange, multiple first protective plates and a second protective plate. The protective flange is sleeved on the outer periphery of the anode electrode or the cathode electrode. The multiple first protective plates are all connected to the protective flange and are located on the side of the protective flange facing away from the transmission bracket and are arranged at intervals. The second protective plate is connected to one end of the multiple first protective plates away from the protective flange.

[0014] Optionally, the impurity ion purification barrel includes a second barrel body, a central column, a dragon sheet and a dragon channel. The central column is connected to the second barrel body, the dragon sheet is connected between the second barrel body and the central column, and is enclosed with the second barrel body and the central column to form a dragon channel.

[0015] Optionally, the solid impurity purification barrel comprises a first barrel body, a first barrel cover and a mounting boss, the first barrel cover is detachably mounted on the first barrel body, and the mounting boss is connected to the inner wall of the first barrel body; the solid impurity purification assembly comprises a first filter plate, a plurality of first through holes, an adjusting member, a second filter plate and a plurality of second through holes, the first filter plate is mounted on the mounting boss, the plurality of first through holes are all opened in the first filter plate, the adjusting member is mounted on the first barrel cover, the second filter plate is mounted on the adjusting member and moves with the adjusting member, the plurality of second through holes are all opened in the second filter plate, and are staggered with the plurality of first through holes;

[0016] The solid impurity purification component has a filtering state in which the second filter plate is attached to the surface of the first filter plate, and also has a cleaning state in which the second filter plate is separated from the first filter plate.

[0017] Optionally, the solid impurity purification barrel also includes multiple limit rods, which are all connected to the mounting boss and pass through the first filter plate and the second filter plate; the adjusting member includes an adjusting seat, an adjusting handwheel, an adjusting screw, an adjusting sleeve and multiple connecting rods, the adjusting seat is installed on the first barrel cover, the adjusting handwheel is rotatably installed on the adjusting seat, the adjusting screw is installed on the adjusting handwheel, the adjusting sleeve is sleeved on the adjusting screw and threadedly connected to the adjusting screw, and the multiple connecting rods are connected between the second filter plate and the adjusting sleeve.

[0018] Optionally, the solid impurity purification component also includes a plurality of sealing rings, which are all installed on the side of the first filter plate facing the second filter plate, and are respectively arranged around the periphery of the plurality of first through holes, and are arranged one-to-one with the plurality of first through holes.

[0019] Optionally, the solid impurity purification barrel includes a first barrel body, a first barrel cover, a first input pipe, a second input pipe, a first output pipe and a second output pipe, the first barrel cover is detachably mounted on the first barrel body, the first input pipe and the second input pipe are both mounted on the first barrel cover, and the first output pipe is mounted between the delivery pump and the first barrel body; the impurity ion purification barrel includes a second barrel body, a second barrel cover, a third input pipe and a third output pipe, the second barrel cover is detachably mounted on the second barrel body, the third input pipe is mounted between the delivery pump and the second barrel body, and the third output pipe is mounted on the second barrel body.

[0020] The present application also provides a purification method of an electrolyte purification device, comprising the following steps:

[0021] The solid impurities are separated by a solid impurity purification mechanism in a primary purification process;

[0022] Secondary purification, separating the impurity ions through the impurity ion purification mechanism.

[0023] The beneficial effects of the electrolyte purification device provided in this application are:

[0024] The electrolyte purification device provided by the present application has a solid impurity purification component that can separate solid impurities from the vanadium electrolyte, and an impurity ion purification mechanism that can separate impurity ions from the vanadium electrolyte. With the cooperation of the solid impurity purification component and the impurity ion purification mechanism, the purity of the vanadium electrolyte can be greatly improved, and the purification effect is good, thereby helping to improve the stability and electrochemical performance of the vanadium electrolyte. Compared with related technologies, no reagents need to be added, and no secondary pollution will be caused. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0026] Figure 1 A three-dimensional diagram of an electrolyte purification device provided in an embodiment of the present application;

[0027] Figure 2 An internal stereogram of an impurity ion purification mechanism of an electrolyte purification device provided in an embodiment of the present application;

[0028] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0029] Figure 4 for Figure 2 A partial enlarged view of point B in the middle;

[0030] Figure 5 An internal stereogram of a solid impurity purification mechanism of an electrolyte purification device provided in an embodiment of the present application;

[0031] Figure 6 for Figure 5 A partial enlarged view of point C in the middle;

[0032] Figure 7 A flow chart of a method for purifying an electrolyte provided in an embodiment of the present application.

[0033] Among them, the reference numerals in the figure are:

[0034] 1. Solid impurity purification mechanism; 11. Solid impurity purification barrel; 111. First barrel body; 112. First barrel cover; 113. First input pipe; 114. Second input pipe; 115. First output pipe; 116. Second output pipe; 117. Mounting boss; 118. Limit rod; 12. Solid impurity purification assembly; 121. First filter plate; 122. First through hole; 123. Adjustment member; 1231. Adjustment seat; 1232. Adjustment hand wheel; 1233. Adjustment screw rod; 1234. Adjustment sleeve; 1235. Connecting rod; 124. Second filter plate; 125. Second through hole; 126. Sealing ring;

[0035] 2. Impurity ion purification mechanism; 21. Impurity ion purification barrel; 211. Second barrel body; 212. Second barrel cover; 213. Third input pipe; 214. Third output pipe; 215. Center column; 216. Jiaolong sheet; 217. Jiaolong channel; 22. Anode electrode; 23. Cathode electrode; 24. Vibration assembly; 241. Mounting bracket; 242. Vibrator; 243. Transmission bracket; 244. Protection bracket; 2441. Protection flange; 2442. First protection plate; 2443. Second protection plate; 245. Corrugated tube;

[0036] 3. Delivery pump. DETAILED DESCRIPTION

[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0038] It should be noted that when a component is referred to as being "mounted on", "fixed on" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] like Figures 1 to 6 As shown, the present application provides an electrolyte purification device, including a solid impurity purification mechanism 1, an impurity ion purification mechanism 2 and a delivery pump 3. The solid impurity purification mechanism 1 includes a solid impurity purification barrel 11 and a solid impurity purification assembly 12, the solid impurity purification assembly 12 is installed in the solid impurity purification barrel 11, and is used to purify solid impurities in the electrolyte. The impurity ion purification mechanism 2 includes an impurity ion purification barrel 21, a plurality of anode electrodes 22, a plurality of cathode electrodes 23 and a DC power supply (not shown in the figure), and the plurality of anode electrodes 22 and the plurality of cathode electrodes 23 are all installed in the impurity ion purification barrel 21 and are electrically connected to the DC power supply through wires. The delivery pump 3 is installed between the solid impurity purification barrel 11 and the impurity ion purification barrel 21, and is configured to pump the electrolyte in the solid impurity purification barrel 11 into the impurity ion purification barrel 21. Among them, the number of anode electrodes 22 and the number of cathode electrodes 23 are equal.

[0041] In this embodiment, the impurity ions are set as iron ions for illustration. Of course, in other embodiments, the impurity ions can also be set as copper ions or other ions for illustration, which is not limited here.

[0042] The electrolyte purification device provided by the present application, the solid impurity purification component 12 can separate solid impurities from the vanadium electrolyte, and the impurity ion purification mechanism 2 can separate impurity ions from the vanadium electrolyte. With the cooperation of the solid impurity purification component 12 and the impurity ion purification mechanism 2, the purity of the vanadium electrolyte can be greatly improved, and the purification effect is good, which helps to improve the stability and electrochemical performance of the vanadium electrolyte. Compared with the related art, no reagent needs to be added, and no secondary pollution will be caused.

[0043] Optionally, the anode electrode 22 is configured as a resin / activated carbon composite electrode.

[0044] Such a configuration, utilizing the characteristics of the resin, such as stable electrochemical properties and large specific surface area, as well as the characteristics of the activated carbon, such as large specific surface area, stable electrochemical properties and strong adsorption capacity, helps to improve the stability of the electrochemical properties of the anode electrode 22, and also helps to improve the adsorption performance of the positive electrode, thereby helping to improve the adsorption performance of the anode electrode 22 for impurity ions, and helping to improve the purification effect of the two pairs of impurity ion purification mechanisms.

[0045] In one embodiment of the present application, see Figures 1 to 6 The impurity ion purification mechanism 2 further includes a plurality of vibration components 24 , which are all installed in the impurity ion purification barrel 21 and are configured to drive the plurality of anode electrodes 22 and the plurality of cathode electrodes 23 to vibrate.

[0046] The number of the vibration components 24 is equal to the sum of the number of the anode electrodes 22 and the number of the cathode electrodes 23 .

[0047] With such arrangement, the anode electrode 22 and the cathode electrode 23 can be vibrated under the action of the vibration component 24 .

[0048] By vibrating the anode electrode 22 and the cathode electrode 23, the vibrating electrodes can promote the electrolyte to flow on the electrode surface, improve the mass transfer efficiency of the reactants in the electrolyte, and reduce the concentration polarization phenomenon of the electrolyte near the electrode surface, so that the reactants are more evenly distributed.

[0049] By vibrating the anode electrode 22 and the cathode electrode 23, the vibration can increase the effective contact area between the electrode and the electrolyte, thereby increasing the reaction rate, and helping to accelerate the mass transfer process in the electrolyte, so that the reactants can reach the electrode surface faster.

[0050] By vibrating the anode electrode 22 and the cathode electrode 23, the accumulation of deposits on the electrode surface can be reduced, the electrode surface can be prevented from being covered, and the activity of the electrode can be maintained. For porous electrodes or composite material electrodes, vibration can prevent particles in the electrolyte from clogging the pores and maintain the permeability of the electrode.

[0051] By vibrating the anode electrode 22 and the cathode electrode 23, the electrolyte can be distributed more evenly on the electrode surface, reducing the phenomenon of local oversaturation or over-dilution. The uniform distribution of the electrolyte helps to improve the electrolysis efficiency and reduce ineffective reactions.

[0052] By vibrating the anode electrode 22 and the cathode electrode 23, the local concentration difference near the electrode surface can be reduced and the overall uniformity of the electrolyte can be improved. Reducing concentration polarization helps to improve current efficiency and reduce energy loss.

[0053] By vibrating the anode electrode 22 and the cathode electrode 23, the vibration can reduce the wear of the electrode surface and extend the service life of the electrode. The mechanical strength of the electrode can be enhanced, making it more durable during use.

[0054] By vibrating the anode electrode 22 and the cathode electrode 23, the vibration helps the electrochemical reaction to proceed more evenly on the electrode surface, reducing local overheating or overcooling. The uniform reaction helps to improve the quality consistency of the electrolysis product.

[0055] By vibrating the anode electrode 22 and the cathode electrode 23, the vibration helps the electrolyte to be evenly distributed on the electrode surface, thereby improving the heat dissipation performance of the electrode. The uniform heat dissipation helps to control the temperature rise on the electrode surface and avoid overheating.

[0056] In one embodiment of the present application, please refer to Figures 1 to 6 The vibration assembly 24 includes a mounting bracket 241, a vibrator 242, a transmission bracket 243, a protection bracket 244 and a corrugated tube 245. The mounting bracket 241 is mounted on the impurity ion purification barrel 21, the vibrator 242 is mounted on the mounting bracket 241, the transmission bracket 243 is mounted on the output end of the vibrator 242, and is configured to drive the anode electrode 22 or the cathode electrode 23 to vibrate, the protection bracket 244 is mounted on the anode electrode 22 or the cathode electrode 23, and is sleeved on the anode electrode 22 or the cathode electrode 23, and the corrugated tube 245 is installed between the impurity ion purification barrel 21 and the protection bracket 244.

[0057] In this way, the mounting bracket 241 can provide a support point for the vibrator 242, so that the vibrator 242 can be stably installed outside the impurity ion purification barrel 21, which helps to improve the structural stability between the vibrator 242 and the impurity ion purification barrel 21. The transmission bracket 243 can transmit the vibration force of the vibrator 242 to the anode electrode 22 or the cathode electrode 23. The protective bracket 244 is used to prevent the anode electrode 22 or the cathode electrode 23 from directly contacting the dragon sheet 216 when the vibrator 242 drives the anode electrode 22 or the cathode electrode 23 to vibrate, thereby effectively protecting the anode electrode 22 or the cathode electrode 23, which helps to extend the service life of the anode electrode 22 or the cathode electrode 23. The corrugated tube 245 is installed between the electrode and the impurity ion purification barrel 21. The contraction performance of the corrugated tube 245 is utilized to ensure that the anode electrode 22 or the cathode electrode 23 vibrates normally, and the anode electrode 22 or the cathode electrode 23 can be separated from the external environment, thereby preventing impurities in the external environment from entering the impurity ion purification barrel 21 and affecting the purification effect of the device.

[0058] Optionally, the electrode rods of the anode electrode 22 and the cathode electrode 23 are both configured as spiral structures.

[0059] In this way, the electrode rod of the anode electrode 22 or the cathode electrode 23 is set as a spiral structure, which can increase the contact area between the electrode and the electrolyte, thereby improving the efficiency of the electrochemical reaction and facilitating the reaction rate. The spiral structure helps to improve the flow state of the electrolyte on the electrode surface and improve the mass transfer efficiency; it also helps to evenly distribute the electrolyte, reduce concentration polarization, and improve the electrolysis efficiency. The spiral structure has better mechanical strength than the traditional planar electrode and can withstand higher mechanical stress. The spiral structure helps to disperse external forces and reduce deformation or damage of the electrode during use. The spiral structure can shorten the path length of ions in the electrolyte from one electrode to another, thereby reducing the resistance inside the electrode. Reducing internal resistance helps to improve current efficiency and reduce energy loss.

[0060] In one embodiment of the present application, see Figures 1 to 6 The protection bracket 244 includes a protection flange 2441, multiple first protection plates 2442 and a second protection plate 2443. The protection flange 2441 is sleeved on the outer periphery of the anode electrode 22 or the cathode electrode 23. The multiple first protection plates 2442 are all connected to the protection flange 2441 and are located on the side of the protection flange 2441 facing away from the transmission bracket 243, and are arranged at intervals. The second protection plate 2443 is connected to one end of the multiple first protection plates 2442 away from the protection flange 2441.

[0061] In this way, a protective space can be enclosed by the protective flange 2441, the plurality of first protective plates 2442 and the second protective plates 2443. The protective space can surround the electrode rod of the anode electrode 22 or the cathode electrode 23, and during the vibration process, the electrode rod of the anode electrode 22 or the cathode electrode 23 is prevented from directly contacting the dragon sheet 216, so that the anode electrode 22 or the cathode electrode 23 can be effectively protected.

[0062] In one embodiment of the present application, see Figures 1 to 6 The impurity ion purification barrel 21 includes a second barrel body 211, a central column 215, a dragon piece 216 and a dragon channel 217. The central column 215 is connected to the second barrel body 211, the dragon piece 216 is connected between the second barrel body 211 and the central column 215, and is enclosed with the second barrel body 211 and the central column 215 to form a dragon channel 217.

[0063] With such arrangement, the Jiaolong channel 217 formed by the second barrel body 211, the central column 215 and the Jiaolong sheet 216 can greatly increase the flow path of the vanadium electrolyte, help increase the contact area between the vanadium electrolyte and the electrode, thereby helping to improve the electrolysis efficiency and the electrochemical reaction rate, and further help to improve the purification efficiency of the device.

[0064] In one embodiment of the present application, please refer to Figures 1 to 6 The solid impurity purification barrel 11 includes a first barrel body 111, a first barrel cover 112 and a mounting boss 117. The first barrel cover 112 is detachably mounted on the first barrel body 111, and the mounting boss 117 is connected to the inner wall of the first barrel body 111. The solid impurity purification assembly 12 includes a first filter plate 121, a plurality of first through holes 122, an adjusting member 123, a second filter plate 124 and a plurality of second through holes 125. The first filter plate 121 is mounted on the mounting boss 117, and the plurality of first through holes 122 are all provided on the first filter plate 121. The adjusting member 123 is mounted on the first barrel cover 112, and the second filter plate 124 is mounted on the adjusting member 123 and moves with the adjusting member 123. The plurality of second through holes 125 are all provided on the second filter plate 124 and are staggered with the plurality of first through holes 122.

[0065] The solid impurity purification component 12 has a filtering state in which the second filter plate 124 is attached to the surface of the first filter plate 121 , and also has a cleaning state in which the second filter plate 124 and the first filter plate 121 are separated.

[0066] With such arrangement, the solid impurity purification assembly 12 can be switched between the filtering state and the cleaning state through the adjusting member 123, which is convenient to adjust and helps to improve the convenience of use. In the filtering state, under the joint action of the first filter plate 121 and the second filter plate 124, the solid impurities can be separated from the vanadium electrolyte, the purification effect is good, and the solid impurities can be prevented from affecting the purification effect of the device on the impurity ions. In the cleaning state, under the action of the plurality of first through holes 122 and the plurality of second through holes 125, the solid impurities accumulated on the surface of the first filter plate 121 and the second filter plate 124 can be flushed out, and the solid impurities are prevented from clogging the mesh on the first filter plate 121 and the second filter plate 124, resulting in a poor separation effect. Compared with the related art, there is no need to open the solid impurity purification barrel 11 to clean the first filter plate 121 and the second filter plate 124, which is convenient to clean and helps to improve the convenience of use. The mounting boss 117 is used to facilitate the installation of the first filter plate 121. The first barrel body 111 and the first barrel cover 112 are designed to be detachably connected, which facilitates the replacement of the first filter plate 121 and the second filter plate 124 and helps to improve the convenience of use.

[0067] In one embodiment of the present application, see Figures 1 to 6 The solid impurity purification barrel 11 further includes a plurality of limit rods 118, which are all connected to the mounting boss 117 and are inserted through the first filter plate 121 and the second filter plate 124. The adjusting member 123 includes an adjusting seat 1231, an adjusting hand wheel 1232, an adjusting screw rod 1233, an adjusting sleeve 1234 and a plurality of connecting rods 1235. The adjusting seat 1231 is mounted on the first barrel cover 112, the adjusting hand wheel 1232 is rotatably mounted on the adjusting seat 1231, the adjusting screw rod 1233 is mounted on the adjusting hand wheel 1232, the adjusting sleeve 1234 is sleeved on the adjusting screw rod 1233 and is screwed to the adjusting screw rod 1233, and the plurality of connecting rods 1235 are all connected between the second filter plate 124 and the adjusting sleeve 1234.

[0068] In this way, a plurality of limiting rods 118 are used to limit the second filter plate 124. When the adjusting screw 1233 is rotated, the second filter plate 124 is prevented from rotating with the adjusting screw 1233, so that the second filter plate 124 can only move relative to the first filter plate 121, so that the solid impurity purification component 12 can normally switch between the filtering state and the cleaning state. The adjusting seat 1231, the adjusting hand wheel 1232, the adjusting screw 1233, the adjusting sleeve 1234 and the plurality of connecting rods 1235 are used, and the second filter plate 124 can move relative to the first filter plate 121 by rotating the adjusting hand wheel 1232, so that the solid impurity purification component 12 can normally switch between the filtering state and the cleaning state.

[0069] In one embodiment of the present application, see Figures 1 to 6The solid impurity purification component 12 also includes a plurality of sealing rings 126 , which are all installed on the side of the first filter plate 121 facing the second filter plate 124 , and are respectively arranged around the outer periphery of the plurality of first through holes 122 , and are arranged one-to-one with the plurality of first through holes 122 .

[0070] With such arrangement and the use of multiple sealing rings 126, in the filtering state, the first filter plate 121 and the second filter plate 124 can be closely fitted to prevent solid impurities from flowing through the first through hole 122 and causing a deterioration in the purification effect.

[0071] In one embodiment of the present application, please refer to Figures 1 to 6 The solid impurity purification barrel 11 includes a first barrel body 111, a first barrel cover 112, a first input pipe 113, a second input pipe 114, a first output pipe 115 and a second output pipe 116. The first barrel cover 112 is detachably mounted on the first barrel body 111. The first input pipe 113 and the second input pipe 114 are both mounted on the first barrel cover 112. The first output pipe 115 is mounted between the delivery pump 3 and the first barrel body 111. The impurity ion purification barrel 21 includes a second barrel body 211, a second barrel cover 212, a third input pipe 213 and a third output pipe 214. The second barrel cover 212 is detachably mounted on the second barrel body 211. The third input pipe 213 is mounted between the delivery pump 3 and the second barrel body 211. The third output pipe 214 is mounted on the second barrel body 211.

[0072] With such arrangement, the vanadium electrolyte can flow through the solid impurity purification assembly 12, the anode electrode 22 and the cathode electrode 23 in sequence through the first input pipe 113, the first output pipe 115, the third input pipe 213 and the third output pipe 214, and the purification effect is good. The cleaning liquid can flow through the first filter plate 121 and the second filter plate 124 in sequence through the second input pipe 114 and the second output pipe 116, and the solid impurities can be cleared out.

[0073] The working principle of the embodiment of the present application is as follows: the second filter plate 124 of the electrolyte purification device is in the filtering state, and the second filter plate 124 is closely attached to the first filter plate 121, and the second input pipe 114 and the second output pipe 116 are in the closed state. The vanadium electrolyte is injected into the first barrel 111 through the first input pipe 113. After the vanadium electrolyte enters the first barrel 111, the solid impurities can be separated from the vanadium electrolyte under the action of the second filter plate 124 and the first filter plate 121. After the solid impurities are separated, the delivery pump 3 pumps the vanadium electrolyte to the dragon channel 217 through the third input pipe 213. Start the DC power supply and provide the same constant voltage to each pair of parallel electrodes (a pair of parallel electrodes includes an anode electrode 22 and a cathode electrode 23). Under the action of the DC power supply, the iron ions migrate to the anode electrode 22 and are adsorbed by the anode electrode 22, so that the impurity ions can be separated from the vanadium electrolyte. When using electrodes to separate impurity ions, the staff starts the vibrator 242, and the vibrator 242 drives the transmission bracket 243 to vibrate. Under the action of the transmission bracket 243, the anode electrode 22 or the cathode electrode 23 vibrates following the transmission bracket 243. After the impurity ions are separated, the vanadium electrolyte is finally output from the third output pipe 214. After the adsorption performance of the anode electrode 22 reaches the limit, a desorbent is pumped into the impurity ion purification barrel 21 for desorption, and the desorbed anode electrode 22 is reversely connected to the DC power supply, and deionized water is pumped in to obtain a regenerated anode electrode 22.

[0074] When the electrolyte purification device switches from the filtering state to the cleaning state, the first input pipe 113 and the first output pipe 115 are in the closed state. The staff rotates the adjustment hand wheel 1232. With the cooperation of the adjustment seat 1231, the adjustment screw 1233 can only rotate relative to the adjustment seat 1231, that is, the adjustment screw 1233 cannot move relative to the adjustment seat 1231. Since the adjustment sleeve 1234 is clamped to the multiple limit rods 118 through multiple connecting rods 1235 and the second filter plate 124, and the adjustment screw 1233 and the second filter plate 124 are arranged at intervals, the adjustment screw 1233 can drive the adjustment sleeve 1234 to move relative to the first filter plate 121. The adjustment sleeve 1234 drives the second filter plate 124 to gradually move away from the first filter plate 121 through the multiple connecting rods 1235 until the second filter plate 124 and the first filter plate 121 are completely separated. In the cleaning state, the cleaning liquid is injected into the first barrel 111 from the second input pipe 114. After the cleaning liquid is injected into the first barrel 111, the cleaning liquid can flush the solid impurities on the surface of the second filter plate 124 from the multiple second through holes 125 to the surface of the first filter plate 121. After the cleaning liquid reaches between the first filter plate 121 and the second filter plate 124, the cleaning liquid can flush the solid impurities between the first filter plate 121 and the second filter plate 124 out from the multiple first through holes 122. After the cleaning liquid flushes the solid impurities out from the first through holes 122, the cleaning liquid drives the solid impurities to be finally output from the second output pipe 116, thereby achieving the purpose of cleaning the solid impurities accumulated on the surfaces of the first filter plate 121 and the second filter plate 124. The staff can control the solid impurity purification mechanism 1 to switch between the filtering state and the cleaning state by controlling the rotation direction of the adjustment hand wheel 1232.

[0075] like Figure 1 and Figure 7 As shown, the present application also provides a purification method of an electrolyte purification device, comprising the following steps:

[0076] Step S1: primary purification, separating solid impurities through solid impurity purification mechanism 1.

[0077] Step S2: Secondary purification, separating the impurity ions through the impurity ion purification mechanism 2.

[0078] The electrolyte purification method provided by the present application separates solid impurities in the vanadium electrolyte by primary purification, and separates impurity ions in the vanadium electrolyte by secondary purification, and has a good purification effect. The primary purification can prevent the solid impurities in the vanadium electrolyte from affecting the purification effect of the secondary purification.

[0079] One or more embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of the present application should be included in the protection scope of the present application.

Claims

1. An electrolyte purification device, characterized in that: include: A solid impurity purification mechanism (1), the solid impurity purification mechanism (1) comprising a solid impurity purification barrel (11) and a solid impurity purification assembly (12), the solid impurity purification assembly (12) being installed in the solid impurity purification barrel (11) and used to purify solid impurities in an electrolyte; the solid impurity purification assembly (12) comprising a first filter plate (121), a plurality of first through holes (122), an adjusting member (123), a second filter plate (124) and a plurality of second through holes (125), the first filter plate (121) being installed in the solid impurity purification barrel (11), the plurality of first through holes (122) being all provided on the first filter plate (121), the adjusting member (123) being installed on the solid impurity purification barrel (11), the second filter plate (124) being installed on the adjusting member (123) and moving with the adjusting member (123), the plurality of second through holes (125) being all provided on the second filter plate (124) and being arranged alternately with the plurality of first through holes (122); The adjusting member (123) comprises an adjusting seat (1231), an adjusting hand wheel (1232), an adjusting screw rod (1233), an adjusting sleeve (1234) and a plurality of connecting rods (1235); the adjusting seat (1231) is mounted on the solid impurity purification barrel (11); the adjusting hand wheel (1232) is rotatably mounted on the adjusting seat (1231); the adjusting screw rod (1233) is mounted on the adjusting hand wheel (1232); the adjusting sleeve (1234) is sleeved on the adjusting screw rod (1233) and is threadedly connected to the adjusting screw rod (1233); and the plurality of connecting rods (1235) are all connected between the second filter plate (124) and the adjusting sleeve (1234); An impurity ion purification mechanism (2), the impurity ion purification mechanism (2) comprising an impurity ion purification barrel (21), a plurality of anode electrodes (22), a plurality of cathode electrodes (23), a direct current power supply and a plurality of vibration components (24), the plurality of anode electrodes (22) and the plurality of cathode electrodes (23) being mounted on the impurity ion purification barrel (21) and electrically connected to the direct current power supply via wires, the plurality of vibration components (24) being mounted on the impurity ion purification barrel (21) and being configured to drive the plurality of anode electrodes (22) and the plurality of cathode electrodes (23) to vibrate; The vibration assembly (24) comprises a mounting bracket (241), a vibrator (242), a transmission bracket (243), a protection bracket (244) and a corrugated tube (245); the mounting bracket (241) is mounted on the impurity ion purification barrel (21); the vibrator (242) is mounted on the mounting bracket (241); the transmission bracket (243) is mounted on the output end of the vibrator (242) and is configured to drive the anode electrode (22) or the cathode electrode (23) to vibrate; the protection bracket (244) is mounted on the anode electrode (22) or the cathode electrode (23) and is sleeved on the anode electrode (22) or the cathode electrode (23); and the corrugated tube (245) is mounted between the impurity ion purification barrel (21) and the protection bracket (244); A delivery pump (3), the delivery pump (3) is installed between the solid impurity purification barrel (11) and the impurity ion purification barrel (21), and is configured to pump the electrolyte in the solid impurity purification barrel (11) into the impurity ion purification barrel (21); The number of anode electrodes (22) and the number of cathode electrodes (23) are equal.

2. The electrolyte purification device according to claim 1, characterized in that: The protection bracket (244) comprises a protection flange (2441), a plurality of first protection plates (2442) and a second protection plate (2443); the protection flange (2441) is sleeved on the outer periphery of the anode electrode (22) or the cathode electrode (23); the plurality of first protection plates (2442) are all connected to the protection flange (2441) and are located on a side of the protection flange (2441) facing away from the transmission bracket (243) and are arranged at intervals; the second protection plate (2443) is connected to one end of the plurality of first protection plates (2442) away from the protection flange (2441).

3. The electrolyte purification device according to claim 1, characterized in that: The impurity ion purification barrel (21) comprises a second barrel body (211), a central column (215), a dragon sheet (216) and a dragon channel (217); the central column (215) is connected to the inside of the second barrel body (211); the dragon sheet (216) is connected between the second barrel body (211) and the central column (215), and is enclosed with the second barrel body (211) and the central column (215) to form the dragon channel (217).

4. The electrolyte purification device according to claim 1, characterized in that: The solid impurity purification barrel (11) comprises a first barrel body (111), a first barrel cover (112) and a mounting boss (117), wherein the first barrel cover (112) is detachably mounted on the first barrel body (111), and the mounting boss (117) is connected to the inner wall of the first barrel body (111); wherein the solid impurity purification component (12) has a filtering state in which the second filter plate (124) is attached to the surface of the first filter plate (121), and also has a cleaning state in which the second filter plate (124) and the first filter plate (121) are separated.

5. The electrolyte purification device according to claim 4, characterized in that: The solid impurity purification barrel (11) further comprises a plurality of limit rods (118), wherein the plurality of limit rods (118) are all connected to the mounting boss (117) and are penetrated through the first filter plate (121) and the second filter plate (124).

6. The electrolyte purification device according to claim 5, characterized in that: The solid impurity purification component (12) further comprises a plurality of sealing rings (126), each of which is mounted on a side of the first filter plate (121) facing the second filter plate (124), and is respectively arranged around the outer periphery of the plurality of first through holes (122), and is arranged in a one-to-one correspondence with the plurality of first through holes (122).

7. The electrolyte purification device according to claim 1, characterized in that: The solid impurity purification barrel (11) comprises a first barrel body (111), a first barrel cover (112), a first input pipe (113), a second input pipe (114), a first output pipe (115) and a second output pipe (116); the first barrel cover (112) is detachably mounted on the first barrel body (111); the first input pipe (113) and the second input pipe (114) are both mounted on the first barrel cover (112); and the first output pipe (115) is mounted between the delivery pump (3) and the first barrel body (111); the impurity ion purification barrel (21) comprises a second barrel body (211), a second barrel cover (212), a third input pipe (213) and a third output pipe (214); the second barrel cover (212) is detachably mounted on the second barrel body (211); the third input pipe (213) is mounted between the delivery pump (3) and the second barrel body (211); and the third output pipe (214) is mounted on the second barrel body (211).

8. A purification method for an electrolyte purification device according to any one of claims 1 to 7, characterized in that: The following steps are involved: Primary purification, separating solid impurities through a solid impurity purification mechanism (1); Secondary purification: separating the impurity ions through the impurity ion purification mechanism (2).

Images