CN119230880B - A kind of electrolyte purification device and purification method - Google Patents

Abstract

The application provides a purifying device for electrolyte, wherein a solid impurity purifying component is arranged in a solid impurity purifying barrel and is used for purifying solid impurities in the electrolyte. The anode electrodes and the cathode electrodes are arranged on the impurity ion purifying barrel and are electrically connected with a direct current power supply through wires. The transfer pump is mounted between the solid impurity purification barrel and the impurity ion purification barrel and is configured to pump electrolyte in the solid impurity purification barrel into the impurity ion purification barrel. The application also provides an electrolyte purifying method which comprises the steps of primary purification, solid impurity separation by a solid impurity purifying mechanism, and secondary purification, wherein impurity ions are separated by an impurity ion purifying mechanism. According to the purifying device for the electrolyte, provided by the application, under the cooperation of the solid impurity purifying component and the impurity ion purifying mechanism, the purity of the vanadium electrolyte can be greatly improved, and the purifying effect is good, so that the stability and the electrochemical performance of the vanadium electrolyte can be improved.

Description

Electrolyte purifying device and purifying method thereof

Technical Field

The application relates to the technical field of electrolyte treatment equipment, in particular to a purifying device and a purifying method of electrolyte.

Background

The vanadium battery is an energy storage device based on oxidation-reduction reaction of vanadium ions, and has the characteristics of high energy density, long service life, high safety and the like. The vanadium battery has wide application prospect in the field of large-scale energy storage, and particularly plays an important role in the aspects of smooth output of renewable energy sources, peak regulation and frequency modulation of a power grid and the like.

The vanadium electrolyte is an energy storage active material and an energy conversion core of the vanadium battery. During the production process, a large amount of solid impurities and impurity ions exist in the vanadium electrolyte. Due to the existence of impurities, the stability and electrochemical performance of the vanadium electrolyte are easily affected, and the operation cost and the service life of the vanadium electrolyte are also easily affected. The concentration and purity of the vanadium electrolyte thus have a significant impact on the performance of the vanadium battery. Among the numerous impurity ions, iron ion is one of the most common impurity ions in the vanadium electrolyte raw material and has a high content, and the electrode reaction is catalyzed in the operation process of the vanadium battery, so that self-discharge and energy loss are caused. In the related art, iron ions are generally removed by chemical precipitation, solvent extraction, or ion exchange. When the method is used for removing iron ions in the vanadium electrolyte, the problems of high medicament consumption, difficult removal of precipitates, serious secondary pollution and the like exist, and the purity of the vanadium electrolyte is influenced. Therefore, there is a need to find a purification device or purification method that is clean and efficient and that is more compatible with the characteristics of the vanadium electrolyte.

Disclosure of Invention

The embodiment of the application aims to provide a purifying device and a purifying method for electrolyte, which are used for solving the technical problems of insufficient cleaning and high efficiency of purification in the prior art.

In order to achieve the above purpose, the application adopts the technical scheme that the purifying device for the electrolyte comprises:

the solid impurity purifying mechanism comprises a solid impurity purifying barrel and a solid impurity purifying component, and the solid impurity purifying component is arranged in the solid impurity purifying barrel and is used for purifying solid impurities in the electrolyte;

The impurity ion purifying mechanism comprises an impurity ion purifying barrel, a plurality of anode electrodes, a plurality of cathode electrodes and a direct current power supply, wherein the anode electrodes and the cathode electrodes are arranged on the impurity ion purifying barrel and are electrically connected with the direct current power supply through wires;

A transfer pump installed between the solid impurity purification barrel and the impurity ion purification barrel and configured to pump an electrolyte in the solid impurity purification barrel into the impurity ion purification barrel;

Wherein the number of anode electrodes is equal to the number of cathode electrodes.

Optionally, the impurity ion purifying mechanism further comprises a plurality of vibration assemblies, wherein the plurality of vibration assemblies are all installed on the impurity ion purifying barrel and are configured to drive the plurality of anode electrodes and the plurality of cathode electrodes to vibrate;

Wherein the number of vibrating assemblies is equal to the sum of the number of anode electrodes and the number of cathode electrodes.

Optionally, the vibration assembly includes a mounting bracket, a vibrator, a transmission bracket, a protection bracket and a corrugated pipe, 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 an output end of the vibrator and is configured to drive the anode electrode or the cathode electrode to vibrate, the protection 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 pipe is mounted between the impurity ion purification barrel and the protection bracket.

Optionally, the protection support includes flange, the first protection plate of polylith and second protection plate, and flange cover locates the periphery of positive electrode or negative electrode, and the first protection plate of polylith is all connected in flange to be located flange one side that is away from the transmission support, and the interval sets up, and the second protection plate is connected in the first protection plate of polylith and is kept away from flange's one end.

Optionally, the impurity ion purifying barrel comprises a second barrel body, a center column, a dragon piece and a dragon channel, wherein the center column is connected in the second barrel body, the dragon piece is connected between the second barrel body and the center column, and the dragon piece and the second barrel body and the center column enclose to form the dragon channel.

The solid impurity purifying component comprises a first filter plate, a plurality of first through holes, an adjusting piece, a second filter plate and a plurality of second through holes, wherein the first filter plate is arranged on the installation boss, the plurality of first through holes are all formed in the first filter plate, the adjusting piece is arranged on the first barrel cover, the second filter plate is arranged on the adjusting piece and moves along with the adjusting piece, and the plurality of second through holes are all formed in the second filter plate and are staggered with the plurality of first through holes;

the solid impurity purifying component has a filtering state that the second filter plate is attached to the surface of the first filter plate, and also has a cleaning state that the second filter plate is separated from the first filter plate.

Optionally, the solid impurity purifying barrel further comprises a plurality of limiting rods which are connected to the mounting bosses and penetrate through the first filter plate and the second filter plate, the adjusting piece comprises an adjusting seat, an adjusting hand wheel, an adjusting screw rod, an adjusting sleeve and a plurality of connecting rods, the adjusting seat is mounted on the first barrel cover, the adjusting hand wheel is rotatably mounted on the adjusting seat, the adjusting screw rod is mounted on the adjusting hand wheel, the adjusting sleeve is sleeved on the adjusting screw rod and is in threaded connection with the adjusting screw rod, and the plurality of connecting rods are connected between the second filter plate and the adjusting sleeve.

Optionally, the solid impurity purifying component further comprises a plurality of sealing rings, wherein the sealing rings are all installed on one side of the first filter plate facing the second filter plate, and respectively enclose the periphery of the plurality of first through holes and are arranged in one-to-one correspondence with the plurality of first through holes.

Optionally, the solid impurity purifying barrel comprises 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, wherein the first barrel cover is detachably arranged on the first barrel body, the first input pipe and the second input pipe are both arranged on the first barrel cover, the first output pipe is arranged between the conveying pump and the first barrel body, the impurity ion purifying barrel comprises a second barrel body, a second barrel cover, a third input pipe and a third output pipe, the second barrel cover is detachably arranged on the second barrel body, the third input pipe is arranged between the conveying pump and the second barrel body, and the third output pipe is arranged on the second barrel body.

The application also provides a purifying method of the purifying device of the electrolyte, which comprises the following steps:

Primary purification, wherein solid impurities are separated by a solid impurity purification mechanism;

and (3) secondary purification, wherein impurity ions are separated by an impurity ion purification mechanism.

The electrolyte purifying device provided by the application has the beneficial effects that:

According to the purifying device for the electrolyte, provided by the application, the solid impurities can be separated from the vanadium electrolyte by the solid impurity purifying component, and the impurity ions can be separated from the vanadium electrolyte by the impurity ion purifying mechanism. Under 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, so that the stability and the electrochemical performance of the vanadium electrolyte can be improved. Compared with the related art, no medicament is needed to be added, and secondary pollution is avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of an apparatus for purifying an electrolyte provided in an embodiment of the present application;

fig. 2 is an internal perspective view of an impurity ion purification mechanism of the purification apparatus for an electrolytic solution according to the embodiment of the present application;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a partial enlarged view at B in FIG. 2;

FIG. 5 is an internal perspective view of a solid impurity purifying mechanism of the purifying apparatus for an electrolytic solution according to the embodiment of the present application;

FIG. 6 is an enlarged view of a portion of FIG. 5 at C;

fig. 7 is a flowchart of a method for purifying an electrolyte according to an embodiment of the present application.

Wherein, each reference sign in the figure:

1. A solid impurity purifying mechanism; 11, a solid impurity purifying barrel, 111, a first barrel body, 112, a first barrel cover, 113, a first input pipe, 114, a second input pipe, 115, a first output pipe, 116, a second output pipe, 117, a mounting boss, 118, a limiting rod, 12, a solid impurity purifying component, 121, a first filter plate, 122, a first through hole, 123, an adjusting piece, 1231, an adjusting seat, 1232, an adjusting hand wheel, 1233, an adjusting screw rod, 1234, an adjusting sleeve, 1235, a connecting rod, 124, a second filter plate, 125, a second through hole, 126 and a sealing ring;

2. Impurity ion purifying mechanism; 21, an impurity ion purifying barrel, 211, a second barrel body, 212, a second barrel cover, 213, a third input pipe, 214, a third output pipe, 215, a central column, 216, a dragon piece, 217, a dragon channel, 22, an anode electrode, 23, a cathode electrode, 24, a vibration component, 241, a mounting bracket, 242, a vibrator, 243, a transmission bracket, 244, a protection bracket, 2441, a protection flange, 2442, a first protection plate, 2443, a second protection plate, 245 and a corrugated pipe;

3. And a transfer pump.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

It will be understood that when an element is referred to as being "mounted," "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

As shown in fig. 1 to 6, the present application provides a purifying apparatus for an electrolytic solution, comprising a solid impurity purifying mechanism 1, an impurity ion purifying mechanism 2, and a transfer pump 3. The solid impurity purifying mechanism 1 includes a solid impurity purifying cartridge 11 and a solid impurity purifying unit 12, and the solid impurity purifying unit 12 is installed in the solid impurity purifying cartridge 11 and serves to purify solid impurities in an electrolyte. The impurity ion purifying mechanism 2 includes an impurity ion purifying cartridge 21, a plurality of anode electrodes 22, a plurality of cathode electrodes 23, and a direct current power supply (not shown in the drawings), and the plurality of anode electrodes 22 and the plurality of cathode electrodes 23 are each mounted to the impurity ion purifying cartridge 21 and electrically connected to the direct current power supply through wires. The transfer 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. Wherein the number of anode electrodes 22 and the number of cathode electrodes 23 are equal.

In this embodiment, the case where the impurity ions are set as iron ions will be described. Of course, in other embodiments, the impurity ions may be other ions such as copper ions, which are not limited only.

According to the electrolyte purifying device provided by the application, the solid impurity purifying component 12 can separate solid impurities from the vanadium electrolyte, and the impurity ion purifying mechanism 2 can separate impurity ions from the vanadium electrolyte. Under the cooperation of the solid impurity purification assembly 12 and the impurity ion purification mechanism 2, the purity of the vanadium electrolyte can be greatly improved, and the purification effect is good, so that the stability and the electrochemical performance of the vanadium electrolyte can be improved. Compared with the related art, no medicament is needed to be added, and secondary pollution is avoided.

Alternatively, the anode electrode 22 is provided as a resin/activated carbon composite electrode.

By means of the arrangement, the stability of the electrochemical performance of the anode electrode 22 and the adsorption performance of the positive electrode are improved by utilizing the characteristics of stable electrochemical performance and large specific surface area of the resin and the characteristics of large specific surface area, stable electrochemical performance and strong adsorption capacity of the activated carbon, so that the adsorption performance of the anode electrode 22 on impurity ions is improved, and the purification effect of the impurity ion purification mechanism 2 is improved.

In one embodiment of the present application, referring to fig. 1 to 6, the impurity ion purification mechanism 2 further includes a plurality of vibration assemblies 24, and the plurality of vibration assemblies 24 are each mounted to the impurity ion purification cartridge 21 and configured to drive the plurality of anode electrodes 22 and the plurality of cathode electrodes 23 to vibrate.

Wherein the number of vibration assemblies 24 is equal to the sum of the number of anode electrodes 22 and the number of cathode electrodes 23.

So configured, the anode electrode 22 and the cathode electrode 23 can be vibrated by the vibration assembly 24.

By vibrating the anode electrode 22 and the cathode electrode 23, the vibrating electrode can promote the electrolyte to flow on the surface of the electrode, and the mass transfer efficiency of the reaction substances in the electrolyte is improved. And concentration polarization phenomenon of the electrolyte near the surface of the electrode can be reduced, so that the reactant is more uniformly distributed.

By vibrating the anode electrode 22 and the cathode electrode 23, the vibration can increase the effective contact area of the electrodes with the electrolyte, thereby improving the reaction rate. Helps to accelerate the mass transfer process in the electrolyte and makes the reactant reach the electrode surface faster.

By vibrating the anode electrode 22 and the cathode electrode 23, accumulation of deposit on the electrode surface can be reduced, the electrode surface is prevented from being covered, and the activity of the electrode is maintained. For porous electrodes or composite electrodes, vibration can prevent particles in the electrolyte from blocking pores, maintaining the permeability of the electrode.

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

By vibrating the anode electrode 22 and the cathode electrode 23, local concentration 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.

By vibrating the anode electrode 22 and the cathode electrode 23, the vibration can reduce the abrasion of the electrode surface and prolong the service life of the electrode. The mechanical strength of the electrode can be enhanced, so that the electrode is more firm and durable in use.

By vibrating the anode electrode 22 and the cathode electrode 23, the vibration helps the electrochemical reaction to proceed more uniformly on the electrode surface, reducing localized overheating or overcooling. The uniform reaction is helpful for improving the quality consistency of electrolytic products.

By vibrating the anode electrode 22 and the cathode electrode 23, the vibration contributes to uniform distribution of the electrolyte on the electrode surface, thereby improving the heat dissipation performance of the electrode. The uniform heat dissipation helps to control the temperature rise of the electrode surface and avoid overheating.

In one embodiment of the present application, referring to fig. 1 to 6 together, the vibration assembly 24 includes a mounting bracket 241, a vibrator 242, a driving bracket 243, a protecting bracket 244 and a bellows 245, the mounting bracket 241 is mounted on the impurity ion purification cartridge 21, the vibrator 242 is mounted on the mounting bracket 241, the driving bracket 243 is mounted on an output end of the vibrator 242 and configured to drive the anode electrode 22 or the cathode electrode 23 to vibrate, the protecting 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 bellows 245 is mounted between the impurity ion purification cartridge 21 and the protecting bracket 244.

So set up, adopt installing support 241, can provide the supporting point for vibrator 242 can install outside impurity ion purification bucket 21 steadily, helps improving the structural stability between vibrator 242 and the impurity ion purification bucket 21. With the driving bracket 243, the vibration force of the vibrator 242 can be transmitted to the anode electrode 22 or the cathode electrode 23. When the vibrator 242 drives the anode electrode 22 or the cathode electrode 23 to vibrate, the protection support 244 is adopted to prevent the anode electrode 22 or the cathode electrode 23 from directly contacting with the dragon chip 216, so that the anode electrode 22 or the cathode electrode 23 is effectively protected, and the service life of the anode electrode 22 or the cathode electrode 23 is prolonged. The corrugated pipe 245 is installed between the electrode and the impurity ion purifying barrel 21, and under the condition that the anode electrode 22 or the cathode electrode 23 is guaranteed to vibrate normally by utilizing the shrinkage performance of the corrugated pipe 245, the anode electrode 22 or the cathode electrode 23 can be separated from the external environment, so that impurities in the external environment are prevented from entering the impurity ion purifying barrel 21 to influence the purifying effect of the device.

Alternatively, the electrode rods of the anode electrode 22 and the cathode electrode 23 are each provided in a spiral structure.

By arranging the electrode rods of the anode electrode 22 or the cathode electrode 23 in a spiral structure, the contact area between the electrode and the electrolyte can be increased, so that the efficiency of electrochemical reaction is improved, and the reaction rate is improved. The spiral structure is beneficial to improving the flowing state of the electrolyte on the surface of the electrode and improving the mass transfer efficiency, and is also beneficial to uniformly distributing the electrolyte, reducing the concentration polarization phenomenon and improving the electrolysis efficiency. Compared with the traditional plane electrode, the spiral structure has better mechanical strength and can bear higher mechanical stress. The spiral structure helps to disperse external force and reduce deformation or damage of the electrode in the use process. The spiral structure can shorten the path length of ions in the electrolyte from one electrode to the other electrode, so that the resistance inside the electrode is reduced, the reduction of the internal resistance is beneficial to improving the current efficiency and reducing the energy loss.

In one embodiment of the present application, referring to fig. 1 to 6, the protection support 244 includes 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 periphery of the anode electrode 22 or the cathode electrode 23, the plurality of first protection plates 2442 are connected to the protection flange 2441, and are located at a side of the protection flange 2441 facing away from the transmission support 243, and the second protection plates 2443 are disposed at intervals, and are connected to one ends of the plurality of first protection plates 2442 facing away from the protection flange 2441.

By this arrangement, the protection flange 2441, the plurality of first protection plates 2442, and the plurality of second protection plates 2443 can enclose a protection space. The protection space can surround the electrode rod of the anode electrode 22 or the cathode electrode 23, and during vibration, the electrode rod of the anode electrode 22 or the cathode electrode 23 is prevented from directly contacting the dragon chip 216, so that the anode electrode 22 or the cathode electrode 23 can be effectively protected.

In one embodiment of the present application, referring to fig. 1 to 6, the impurity ion purifying cartridge 21 includes a second cartridge body 211, a central column 215, a dragon chip 216 and a dragon channel 217, wherein the central column 215 is connected to the second cartridge body 211, the dragon chip 216 is connected between the second cartridge body 211 and the central column 215, and the dragon channel 217 is formed by enclosing the second cartridge body 211 and the central column 215.

So set up, through the flood dragon passageway 217 that second staving 211, center post 215 and flood dragon piece 216 enclose formation, can greatly increased vanadium electrolyte's flow path, help increasing the area of contact between vanadium electrolyte and the electrode to help improving electrolysis efficiency and electrochemical reaction rate, and then help improving the purification efficiency of the device.

In one embodiment of the present application, referring to fig. 1 to 6 together, the solid impurity purifying cartridge 11 includes a first cartridge body 111, a first cartridge cover 112, and a mounting boss 117, the first cartridge cover 112 being detachably mounted to the first cartridge body 111, the mounting boss 117 being coupled to an inner wall of the first cartridge body 111. The solid impurity purifying component 12 comprises a first filter plate 121, a plurality of first through holes 122, an adjusting piece 123, a second filter plate 124 and a plurality of second through holes 125, wherein the first filter plate 121 is arranged on the installation boss 117, the plurality of first through holes 122 are all formed in the first filter plate 121, the adjusting piece 123 is arranged on the first barrel cover 112, the second filter plate 124 is arranged on the adjusting piece 123 and moves along with the adjusting piece 123, and the plurality of second through holes 125 are all formed in the second filter plate 124 and are staggered with the plurality of first through holes 122.

The solid impurity purifying unit 12 has a filtering state in which the second filter sheet 124 is attached to the surface of the first filter sheet 121, and a cleaning state in which the second filter sheet 124 is spaced apart from the first filter sheet 121.

So set up, through regulating part 123 for solid impurity purification subassembly 12 can switch between filtration state and clean state, and it is convenient to adjust, helps improving the convenience of use. Under the combined 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 effect of the device on purifying impurity ions can be prevented from being influenced by the solid impurities. In the clean state, the solid impurities deposited on the surfaces of the first filter sheet 121 and the second filter sheet 124 can be washed out by the action of the plurality of first through holes 122 and the plurality of second through holes 125, and the separation effect is prevented from being deteriorated due to the clogging of the meshes of the first filter sheet 121 and the second filter sheet 124 by the solid impurities. Compared with the related art, the first filter plate 121 and the second filter plate 124 are cleaned without opening the solid impurity purifying cartridge 11, which is convenient for cleaning and contributes to improving the convenience of use. The mounting boss 117 is employed to facilitate mounting of the first filter plate 121. The first barrel 111 and the first barrel cover 112 are detachably connected, so that the first filter plate 121 and the second filter plate 124 can be replaced conveniently, and convenience in use is improved.

In one embodiment of the present application, referring to fig. 1 to 6, the solid impurity purifying cartridge 11 further includes a plurality of limit rods 118, and the plurality of limit rods 118 are connected to the mounting bosses 117 and pass 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 in threaded connection with the adjusting screw rod 1233, and the plurality of connecting rods 1235 are connected between the second filter plate 124 and the adjusting sleeve 1234.

Thus, the second filter plate 124 can be limited by the plurality of limiting rods 118. Upon rotation of the adjustment screw 1233, the second filter plate 124 is prevented from following the rotation of the adjustment screw 1233 such that the second filter plate 124 can only move relative to the first filter plate 121, thereby enabling the solid impurity purification assembly 12 to normally switch between a filtered state and a cleaned state. The adjusting seat 1231, the adjusting hand wheel 1232, the adjusting screw rod 1233, the adjusting sleeve 1234 and the plurality of connecting rods 1235 are adopted, 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 purifying assembly 12 can be normally switched between the filtering state and the cleaning state.

In an embodiment of the present application, referring to fig. 1 to 6, the solid impurity purifying assembly 12 further includes a plurality of sealing rings 126, wherein the plurality of sealing rings 126 are respectively installed on a side of the first filter plate 121 facing the second filter plate 124, and are respectively disposed around the peripheries of the plurality of first through holes 122, and are disposed in one-to-one correspondence with the plurality of first through holes 122.

So set up, adopt a plurality of sealing washer 126, under filtration state, can make first filter plate 121 and second filter plate 124 closely laminate, prevent that solid impurity from flowing through from first through-hole 122 department and leading to purification effect to worsen.

In one embodiment of the present application, referring to fig. 1 to 6, the solid impurity purifying cartridge 11 includes a first cartridge body 111, a first cartridge 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 cartridge cover 112 is detachably mounted to the first cartridge body 111, the first input pipe 113 and the second input pipe 114 are both mounted to the first cartridge cover 112, and the first output pipe 115 is mounted between the transfer pump 3 and the first cartridge body 111. The impurity ion purifying cartridge 21 includes a second cartridge body 211, a second cartridge cover 212, a third input pipe 213 and a third output pipe 214, the second cartridge cover 212 is detachably mounted to the second cartridge body 211, the third input pipe 213 is mounted between the transfer pump 3 and the second cartridge body 211, and the third output pipe 214 is mounted to the second cartridge body 211.

So set up, through first input tube 113, first output tube 115, third input tube 213 and third output tube 214, can make vanadium electrolyte flow through solid impurity purification subassembly 12, anode electrode 22 and cathode electrode 23 in proper order, purification effect is good. Through the second inlet pipe 114 and the second outlet pipe 116, the cleaning liquid can flow through the first filter sheet 121 and the second filter sheet 124 in this order, and the solid impurities can be removed.

The working principle of the embodiment of the application is that the second filter plate 124 is closely attached to the first filter plate 121 in the filtering state of the purifying device of the electrolyte, 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 tub 111 through the first input pipe 113. After the vanadium electrolyte enters the first barrel 111, 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 separating the solid impurities, the transfer pump 3 pumps the vanadium electrolyte through the third input tube 213 to the dragon channel 217. The dc power supply is activated to supply the same constant voltage to each pair of parallel electrodes (a pair of parallel electrodes comprising an anode electrode 22 and a cathode electrode 23). Under the action of a direct current power supply, iron ions migrate to the anode electrode 22 and are adsorbed by the anode electrode 22, so that impurity ions can be separated from the vanadium electrolyte. When the foreign ions are separated using the electrode, the worker activates the vibrator 242, and the vibrator 242 drives the driving bracket 243 to vibrate. Under the action of the driving support 243, the anode electrode 22 or the cathode electrode 23 vibrates following the driving support 243. After the impurity ions are separated, the vanadium electrolyte is finally outputted from the third output pipe 214. After the adsorption performance of the anode electrode 22 reaches the limit, desorbing the impurity ion purifying barrel 21 by pumping a desorbing agent, reversely connecting the desorbed anode electrode 22 with a direct current power supply, and pumping deionized water to obtain the regenerated anode electrode 22.

When the purifying apparatus of the electrolytic solution is switched 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 operator rotates the adjustment hand wheel 1232. Under the cooperation of the adjusting seat 1231, the adjusting screw rod 1233 can only rotate relative to the adjusting seat 1231, that is, the adjusting screw rod 1233 cannot move relative to the adjusting seat 1231. Because the adjusting sleeve 1234 is clamped to the plurality of limiting rods 118 through the plurality of connecting rods 1235 and the second filter plate 124, and the adjusting screw rod 1233 and the second filter plate 124 are arranged at intervals, the adjusting screw rod 1233 can drive the adjusting sleeve 1234 to move relative to the first filter plate 121. The adjustment sleeve 1234 drives the second filter plate 124 gradually away from the first filter plate 121 via the plurality of 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 tub 111 from the second input pipe 114. After the cleaning liquid is injected into the first tub 111, the cleaning liquid can flush the solid impurities on the surface of the second filter plate 124 from the plurality of second through holes 125 to the surface of the first filter plate 121. After reaching between the first filter plate 121 and the second filter plate 124, the cleaning liquid can flush out solid impurities between the first filter plate 121 and the second filter plate 124 from the plurality of first through holes 122. After the cleaning liquid washes out the solid impurities from the first through holes 122, the cleaning liquid drives the solid impurities to be finally output from the second output pipe 116, so that the purpose of cleaning the solid impurities accumulated on the surfaces of the first filter plate 121 and the second filter plate 124 can be achieved. The worker can control the solid impurity purifying mechanism 1 to switch between the filtering state and the cleaning state by controlling the rotation direction of the regulating handwheel 1232.

As shown in fig. 1 and 7, the present application also provides a purifying method of a purifying apparatus of an electrolyte, comprising the steps of:

Step S1, once purification, separating solid impurities by a solid impurity purification mechanism 1.

And S2, secondary purification, namely separating impurity ions by an impurity ion purification mechanism 2.

According to the electrolyte purifying method provided by the application, solid impurities in the vanadium electrolyte are separated through primary purification, and impurity ions in the vanadium electrolyte are separated through secondary purification, so that the purifying effect is good. By the primary purification, the solid impurities in the vanadium electrolyte can be prevented from affecting the purification effect of the secondary purification.

One or more embodiments of the present application are intended to embrace all such alternatives, modifications and variations as fall within the broad scope of the present application. Accordingly, any omissions, modifications, equivalents, improvements and others which are within the spirit and principles of the one or more embodiments of the application are intended to be included within the scope of the application.

Claims (8)

1. An apparatus for purifying an electrolyte, comprising:

The solid impurity purifying mechanism (1), the solid impurity purifying mechanism (1) comprises a solid impurity purifying barrel (11) and a solid impurity purifying component (12), the solid impurity purifying component (12) is arranged in the solid impurity purifying barrel (11) and is used for purifying solid impurities in electrolyte, the solid impurity purifying component (12) comprises a first filter plate (121), a plurality of first through holes (122), an adjusting piece (123), a second filter plate (124) and a plurality of second through holes (125), the first filter plate (121) is arranged in the solid impurity purifying barrel (11), the plurality of first through holes (122) are all arranged in the first filter plate (121), the adjusting piece (123) is arranged in the solid impurity purifying barrel (11), the second filter plate (124) is arranged in the adjusting piece (123) and moves along with the adjusting piece (123), and the plurality of second through holes (125) are all arranged in the second filter plate (124) and are staggered with the plurality of first through holes (122);

The adjusting piece (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), wherein the adjusting seat (1231) is arranged on the solid impurity purifying barrel (11), the adjusting hand wheel (1232) is rotatably arranged on the adjusting seat (1231), the adjusting screw rod (1233) is arranged on the adjusting hand wheel (1232), the adjusting sleeve (1234) is sleeved on the adjusting screw rod (1233) and is in threaded connection with the adjusting screw rod (1233), and the plurality of connecting rods (1235) are connected between the second filter plate (124) and the adjusting sleeve (1234);

The impurity ion purifying mechanism (2), the impurity ion purifying mechanism (2) comprises an impurity ion purifying 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), wherein the plurality of anode electrodes (22) and the plurality of cathode electrodes (23) are all arranged on the impurity ion purifying barrel (21) and are electrically connected with the direct current power supply through wires, and the plurality of vibration components (24) are all arranged on the impurity ion purifying barrel (21) and are configured to drive the plurality of anode electrodes (22) and the plurality of cathode electrodes (23) to vibrate;

The vibrating assembly (24) comprises a mounting bracket (241), a vibrator (242), a transmission bracket (243), a protection bracket (244) and a corrugated pipe (245), wherein 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 at 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 pipe (245) is mounted between the impurity ion purification barrel (21) and the protection bracket (244);

A transfer pump (3), the transfer pump (3) being installed between the solid impurity purification barrel (11) and the impurity ion purification barrel (21) and configured to pump electrolyte in the solid impurity purification barrel (11) into the impurity ion purification barrel (21);

Wherein the number of anode electrodes (22) and the number of cathode electrodes (23) are equal.

2. The electrolyte purifying device according to claim 1, wherein the protective bracket (244) comprises a protective flange (2441), a plurality of first protective plates (2442) and a second protective plate (2443), the protective flange (2441) is sleeved on the periphery of the anode electrode (22) or the cathode electrode (23), the plurality of first protective plates (2442) are connected to the protective flange (2441) and are positioned on one side of the protective flange (2441) facing away from the transmission bracket (243) and are arranged at intervals, and the second protective plate (2443) is connected to one end of the plurality of first protective plates (2442) away from the protective flange (2441).

3. The device for purifying an electrolyte according to claim 1, wherein the impurity ion purifying barrel (21) comprises a second barrel body (211), a central column (215), a dragon chip (216) and a dragon channel (217), wherein the central column (215) is connected in the second barrel body (211), the dragon chip (216) is connected between the second barrel body (211) and the central column (215), and the dragon channel (217) is formed by enclosing the dragon chip (216) with the second barrel body (211) and the central column (215).

4. The apparatus according to claim 1, wherein the solid impurity purifying cartridge (11) comprises a first cartridge body (111), a first cartridge cover (112) and a mounting boss (117), the first cartridge cover (112) is detachably mounted to the first cartridge body (111), the mounting boss (117) is connected to an inner wall of the first cartridge body (111), and wherein the solid impurity purifying module (12) has a filtering state in which the second filter sheet (124) is attached to a surface of the first filter sheet (121), and a cleaning state in which the second filter sheet (124) is separated from the first filter sheet (121).

5. The electrolytic solution purifying apparatus according to claim 4, wherein the solid impurity purifying cartridge (11) further comprises a plurality of stopper rods (118), and the plurality of stopper rods (118) are connected to the mounting boss (117) and pass through the first filter plate (121) and the second filter plate (124).

6. The apparatus for purifying an electrolyte according to claim 5, wherein the solid impurity purifying assembly (12) further comprises a plurality of sealing rings (126), and the plurality of sealing rings (126) are mounted on a side of the first filter plate (121) facing the second filter plate (124), respectively surround the peripheries of the plurality of first through holes (122), and are disposed in one-to-one correspondence with the plurality of first through holes (122).

7. The purifying apparatus for an electrolytic solution according to claim 1, wherein the solid impurity purifying tank (11) comprises a first tank body (111), a first tank 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 tank cover (112) is detachably mounted on the first tank body (111), the first input pipe (113) and the second input pipe (114) are both mounted on the first tank cover (112), the first output pipe (115) is mounted between the transfer pump (3) and the first tank body (111), the impurity ion purifying tank (21) comprises a second tank body (211), a second tank cover (212), a third input pipe (213) and a third output pipe (214), the second tank cover (212) is detachably mounted on the second tank body (211), the third input pipe (213) is mounted between the transfer pump (3) and the second tank body (211), and the third output pipe (214) is mounted on the second tank body (211).

8. A purification method of the purification apparatus for an electrolytic solution according to any one of claims 1 to 7, comprising the steps of:

Primary purification, separating solid impurities by a solid impurity purification mechanism (1);

And (3) secondary purification, wherein impurity ions are separated by an impurity ion purification mechanism (2).