CN119518054A - Energy storage power stations, their applications and liquid flow energy storage tanks - Google Patents

Abstract

The invention provides an energy storage power station, application of the energy storage power station and a liquid flow energy storage tank. The liquid flow energy storage tank comprises a frame, a liquid storage tank, a liquid inlet pipe and a liquid outlet pipe. The liquid storage tank is fixed in the frame, and the top and the bottom of frame all are provided with the corner fittings to can fix on the transport vechicle, and can mutually fix and pile up, make things convenient for the transportation and the installation of liquid flow energy storage tank case. The liquid storage tank is used for containing electrolyte, the electrolyte can be transported along with the liquid flow energy storage tank, and the electrolyte does not need to be transported independently. The electrolyte does not need to be transported for many times, the leakage probability of the electrolyte is effectively reduced, and the safety is high. And simultaneously reduces the pollution to the environment. The liquid flow energy storage tank boxes can be mutually stacked through corner fittings, so that the occupied area of the energy storage power station is reduced. The structure of the energy storage power station can be used for adding the liquid flow energy storage tank box and stacking the liquid flow energy storage tank box, so that the expansion of the energy storage capacity of the energy storage power station is realized, the construction efficiency of the energy storage power station is improved, the cost is reduced, and the convenient transportation and installation of the large liquid flow energy storage power station are realized.

Description

Energy storage power station, application of energy storage power station and liquid flow energy storage tank

Technical Field

The invention relates to the technical field of liquid flow energy storage, in particular to an energy storage power station, application of the energy storage power station and a liquid flow energy storage tank.

Background

Flow batteries (Flow batteries) are electrochemical energy storage devices whose principle of operation is based on redox reactions in two electrolyte solutions. Unlike conventional batteries, flow batteries store energy in a liquid electrolyte in an external reservoir, rather than on a solid electrode inside the battery.

The current mode is that the ton barrel is adopted to transport electrolyte to a set point of a liquid flow energy storage power station, a magnetic pump is adopted to pump the electrolyte to a PPH storage tank, the energy storage power station is used at a certain destination, when the energy storage power station needs to be used at the destination, the magnetic pump is required to pump the electrolyte to the ton barrel, the truck is adopted to transport the ton barrel away, the operation is complex, and the space utilization rate during transportation and storage is limited by the shape of the ton barrel. In addition, the ton barrel is composed of an inner plastic container (inner container) and an outer metal frame, and may be subjected to physical damage such as abrasion, scratch or impact during transportation and storage, thereby causing leakage of electrolyte and environmental pollution.

Disclosure of Invention

The invention aims to provide a liquid flow energy storage tank box which is convenient to transport and install and reduces the probability of environmental pollution.

In order to solve the technical problems, the invention adopts the following technical scheme:

According to one aspect of the application, a liquid flow energy storage tank is provided and comprises a frame, a liquid storage tank, a liquid inlet pipe and a liquid outlet pipe. The top and the bottom of the frame are respectively provided with a corner fitting, the liquid storage tank is used for containing electrolyte, the liquid storage tank is fixed in the frame, the liquid inlet pipe is communicated with the upper part of the liquid storage tank so as to be detachably connected with the liquid inlet pipe through a pipeline, and the liquid outlet pipe is communicated with the lower part of the liquid storage tank so as to be detachably connected with the liquid outlet pipe through a pipeline.

In some embodiments of the application, the liquid storage tank is provided with a plurality of liquid inlet pipes and a plurality of liquid outlet pipes, the liquid inlet pipes are arranged at intervals, and the liquid outlet pipes are arranged at intervals.

In some embodiments of the application, the liquid inlet pipe comprises a main liquid inlet pipe and a branch liquid inlet pipe, wherein an inlet of the main liquid inlet pipe extends out of the liquid storage tank, the branch liquid inlet pipe is connected with an outlet of the main liquid inlet pipe, and a plurality of outlets are formed in the branch liquid inlet pipe.

In some embodiments of the present application, the liquid inlet pipe further comprises a plurality of liquid inlet branch pipes, wherein the liquid inlet branch pipes are arranged at intervals along the length direction of the branched liquid inlet pipe, and one ends of the liquid inlet branch pipes are connected to the branched liquid inlet pipe.

In some embodiments of the present application, the liquid outlet pipe includes a main liquid outlet pipe and a branch liquid outlet pipe, an outlet of the main liquid outlet pipe extends out of the liquid storage tank, the branch liquid outlet pipe is connected to an inlet of the main liquid outlet pipe, and the branch liquid outlet pipe is formed with a plurality of inlets.

In some embodiments of the present application, the liquid outlet pipe further includes a plurality of liquid outlet pipes, wherein the plurality of liquid outlet pipes are arranged at intervals along the length direction of the branched liquid outlet pipe, and one ends of the plurality of liquid outlet pipes are connected to the branched liquid outlet pipe.

In some embodiments of the application, a temperature control unit is arranged on the liquid storage tank and is used for detecting and controlling the temperature of electrolyte in the liquid storage tank.

In some embodiments of the present application, the outer part Zhou Jun of the liquid storage tank is attached to and fixed with a heat exchanging member, and the heat exchanging member extends in a longitudinal direction.

In some embodiments of the application, the heat exchange member is a tubular structure having heat exchange channels formed therein for the flow of a heat exchange medium.

In some embodiments of the application, a liquid collecting tank is arranged at the bottom of the liquid storage tank, the liquid collecting tank is arranged at the outer side of the liquid storage tank, and an alarm device is arranged in the liquid collecting tank.

In some embodiments of the present application, a flow equalizing plate is disposed in the liquid storage tank, the flow equalizing plate is vertically disposed in the liquid storage tank, and a plurality of through flow equalizing holes are formed on the flow equalizing plate.

In some embodiments of the present application, the outer peripheral edge of the flow equalizing plate is fixed on the inner peripheral wall of the liquid storage tank, and the outer peripheral edge of the flow equalizing plate is provided with a through liquid passing groove.

In some embodiments of the present application, a liquid outlet is formed on the liquid collecting tank, and a liquid outlet pipe is arranged at the liquid outlet for discharging the liquid collecting liquid in the liquid collecting tank.

In some embodiments of the application, the shape of the liquid passing groove is one or a combination of any of arc, circle and polygon.

In some embodiments of the present application, the flow equalization plates are arranged in a plurality along a longitudinal direction at intervals.

In some embodiments of the present application, a plurality of partition boards are further disposed in the liquid storage tank, and the plurality of partition boards are disposed at intervals along a longitudinal direction so as to divide the cavity in the liquid storage tank into a plurality of compartments, and each compartment is provided with a liquid inlet pipe and a liquid outlet pipe.

According to another aspect of the application, the energy storage power station comprises a pile unit, a pipeline unit, an electric control unit, a magnetic pump and the liquid flow energy storage tank box, wherein a plurality of frames are arranged, each liquid storage tank comprises an anode liquid storage tank and a cathode liquid storage tank, anode electrolyte is contained in each anode liquid storage tank, each anode liquid storage tank is arranged in one or more frames, cathode electrolyte is contained in each cathode liquid storage tank, each cathode liquid storage tank is arranged in one or more frames, the pile unit is connected with the pipeline unit, the pile unit is connected with the anode liquid storage tanks and the cathode liquid storage tanks through the pipeline unit, the pipeline unit is detachably connected with the anode liquid storage tanks and the cathode liquid storage tanks, the magnetic pump is arranged in the pipeline unit, and the magnetic pump is arranged corresponding to the anode liquid storage tanks and the cathode liquid storage tanks, so that the electrolyte can be driven to flow between the pile unit and the pile unit, and the pile unit can be driven to flow between the anode liquid storage tanks and the pile unit.

According to the technical scheme, the invention has at least the following advantages and positive effects:

In the invention, the liquid storage tank is fixed in the frame, and the top and the bottom of the frame are respectively provided with the corner fittings so as to be fixed on the transport vehicle and mutually fixed and stacked, thereby being convenient for the transportation and the installation of the liquid flow energy storage tank. The liquid flow energy storage tank boxes can be mutually stacked through the corner fittings, so that the occupied area of the liquid flow energy storage tank boxes is reduced.

The liquid storage tank is used for containing electrolyte, the electrolyte can be transported along with the liquid flow energy storage tank, and the electrolyte does not need to be transported independently. The electrolyte does not need to be transported for many times, the leakage probability of the electrolyte is effectively reduced, and the safety is high. Simultaneously, the pollution to the environment is effectively reduced. The liquid flow energy storage tank boxes can be mutually stacked through the corner fittings, the occupied area of the energy storage power station is reduced, the structure of the energy storage power station can be realized by adding the liquid flow energy storage tank boxes and stacking the liquid flow energy storage tank boxes, the expansion of the energy storage capacity of the energy storage power station is realized, the construction efficiency of the energy storage power station is improved, the cost is reduced, and the convenient transportation and the installation of the large liquid flow energy storage power station are realized.

Other features and advantages of the application will be apparent from the following detailed description, or may be learned by the practice of the application.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

FIG. 1 is a schematic structural diagram of a first embodiment of an energy storage power station of the present invention.

Fig. 2 is a schematic stacking view of the structure of fig. 1.

Fig. 3 is a schematic diagram of the structure of the liquid flow energy storage tank of the present invention.

Fig. 4 is a schematic view of the structure of fig. 3 from another perspective.

Fig. 5 is a schematic structural diagram of the flow equalization plate of the present invention.

Fig. 6 is a schematic view of the structure of the first embodiment of the liquid storage tank of the present invention.

Fig. 7 is a schematic view showing the flow of an electrolyte in use in the first embodiment of the liquid storage tank of the present invention.

Fig. 8 is a schematic view of the structure of a second embodiment of the liquid storage tank of the present invention.

Fig. 9 is a schematic view showing the flow of an electrolyte in use in the second embodiment of the liquid storage tank of the present invention.

Fig. 10 is a schematic view of the structure of a third embodiment of the liquid storage tank of the present invention.

FIG. 11 is a schematic view showing the flow of an electrolyte in use in a third embodiment of the liquid storage tank of the present invention.

Fig. 12 is a schematic view of a fourth embodiment of the liquid storage tank of the present invention.

Fig. 13 is a schematic view showing the flow of an electrolyte in use in a fourth embodiment of the liquid storage tank of the present invention.

Fig. 14 is a schematic view of the structure of a fifth embodiment of the liquid storage tank of the present invention.

Fig. 15 is a schematic view showing the flow of an electrolyte in use in a fifth embodiment of the liquid storage tank of the present invention.

Fig. 16 is a schematic view of a sixth embodiment of the liquid storage tank of the present invention.

FIG. 17 is a schematic view showing the flow of an electrolyte in use in a sixth embodiment of the liquid storage tank of the present invention.

FIG. 18 is a schematic structural view of a second embodiment of an energy storage power station of the present invention.

Fig. 19 is a schematic stacking view of the structure of fig. 18.

FIG. 20 is a schematic structural view of a third embodiment of an energy storage power station of the present invention.

FIG. 21 is a schematic structural view of a fourth embodiment of an energy storage power station of the present invention.

The reference numerals are as follows, 100, frame, 110, first frame, 120, second frame, 130, third frame, 200, liquid storage tank, 201, positive liquid storage tank, 202, negative liquid storage tank, 210, overflow box, 220, manhole, 230, liquid inlet, 240, gas charging inlet, 250, safety valve, 260, liquid level meter, 270, heat exchanging piece, 280, liquid collecting tank, 290, flow equalizing plate, 291, flow equalizing hole, 292, liquid passing tank, 310, liquid inlet pipe, 311, main liquid inlet pipe, 312, branch liquid inlet pipe, 313, liquid inlet branch pipe, 320, liquid outlet pipe, 321, main liquid outlet pipe, 322, branch liquid outlet pipe, 323, liquid outlet pipe, 400, galvanic pile unit, 500, pipeline unit, 600, magnetic pump, 700 and battery management system.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein, but rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the application may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.

The application will be described in further detail with reference to the drawings and the specific examples. It should be noted that the technical features of the embodiments of the present application described below may be combined with each other as long as they do not collide with each other. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.

For convenience of description and understanding, the tank length direction is taken as a longitudinal direction, and the horizontal and vertical directions are taken as transverse directions.

FIG. 1 is a schematic structural diagram of a first embodiment of an energy storage power station of the present invention. Fig. 2 is a schematic stacking view of the structure of fig. 1. Fig. 3 is a schematic diagram of the structure of the liquid flow energy storage tank of the present invention. Fig. 4 is a schematic view of the structure of fig. 3 from another perspective.

Referring to fig. 1 to 4, an energy storage power station is provided in this embodiment, which includes a liquid flow energy storage tank, a pile unit 400, a pipeline unit 500, an electric control unit, and a magnetic pump 600. Electrolyte is contained in the liquid flow energy storage tank, the pipeline unit 500 is connected with the liquid flow energy storage tank and the electric pile unit 400, and the magnetic pump 600 is connected in series in the pipeline unit 500 so as to drive the electrolyte in the liquid flow energy storage tank to move into the electric pile unit 400 along the pipeline unit 500, and electron exchange occurs in the electric pile unit 400 to generate electric energy. The electric pile unit and the magnetic pump are respectively and electrically connected with the electric control unit.

The liquid flow tank includes a frame 100 and a liquid storage tank 200 disposed within the frame 100.

The frame 100 is provided in plurality, and the top and bottom of the frame 100 are provided with corner pieces to be able to be fixed on a transport vehicle and to be able to be fixed and stacked on each other, thereby facilitating the transportation and installation of the frame 100. The frame 100 is fixed to the transport vehicle or the semitrailer by corner pieces to facilitate transportation. The frames 100 can be stacked and can be limited and fixed by corner fittings so that the flow energy storage tank boxes can be stacked with each other, thereby enabling the installation of the energy storage power station to occupy a smaller area.

The number of frames 100 is plural, and the outer frame of the frame 100 has a rectangular parallelepiped or square structure. The frame 100 is a structure formed by connecting a plurality of cross members and longitudinal members.

The frame 100 can be sized differently to accommodate different sized shipments. Such as 10-gauge, 20-gauge, 40-gauge, etc.

The liquid storage tank 200 is used for containing electrolyte, and the liquid storage tank 200 is fixed in the frame 100. The housing of the liquid storage tank 200 is a structure made of a metal material so as to be capable of being used for a long time and prolong the service life of the liquid storage tank 200.

In this embodiment, the reservoir is a metal outer shell and a plastic inner liner (the inner liner may be polyethylene, polytetrafluoroethylene, etc.).

In one embodiment, the liquid storage tank is a metal shell, and the interior of the metal shell is brushed with an anti-corrosive paint.

In some embodiments, the shell of the liquid storage tank is a carbon steel tank body, and the metal shell is externally painted with anti-corrosion paint. In some embodiments, a heat insulating layer such as rock wool is also arranged outside the shell of the liquid storage tank.

In some embodiments, the plastic layer is disposed outside the housing of the liquid storage tank or the housing of the liquid storage tank is made of glass fiber reinforced plastic.

In other embodiments, the housing of the fluid reservoir is constructed of a high strength material such as a metallic material or a carbon fiber material. In this embodiment, the reservoir 200 includes a positive reservoir 201 and a negative reservoir 202. The positive electrode liquid storage tank 201 contains positive electrode electrolyte, and the negative electrode liquid storage tank 202 contains negative electrode electrolyte.

The electrolyte is contained in the liquid storage tank 200 so as to be transported together with the liquid storage tank 200, and the electrolyte does not need to be transported separately.

The flow battery can be any one of an all-vanadium flow battery, a zinc-bromine flow battery, a zinc-iron flow battery, an iron-chromium flow battery and an organic flow battery.

In some embodiments, the electrolyte of the all-vanadium flow battery uses vanadium ions (v2+ and v3+) as the active material. The electrolyte of the zinc-bromine flow battery uses zinc and bromine as active materials. The electrolyte of the iron-chromium flow battery uses iron and chromium as active materials.

The upper end of each liquid storage tank 200 is provided with an overflow box 210, and the overflow box 210 is provided with a manhole 220 penetrating into the tank. The manhole 220 is covered with a cover plate.

The overflow box 210 is further provided with a liquid inlet 230, and the pipe unit 500 is connected to the liquid inlet 230. A liquid outlet (not shown) is further formed in the bottom of the liquid storage tank 200, and the liquid outlet is connected to the liquid inlet 230 of the liquid storage tank 200 of the same type or the galvanic pile unit 400 through a pipeline. The liquid inlets 230 and the liquid outlets of the plurality of liquid storage tanks 200 are sequentially connected through pipelines, and then other liquid inlets 230 and liquid outlets of the liquid storage tanks 200 are connected to the galvanic pile unit 400 through pipelines, so that a circulation channel for flowing electrolyte is formed between the liquid storage tanks 200 and the galvanic pile unit 400.

The overflow box 210 is also provided with an inflation port 240 for flushing inert gas, such as nitrogen, into the tank. The overflow box 210 is also provided with a relief valve 250 and a level gauge 260, the level gauge 260 extending into the reservoir 200.

In this embodiment, the liquid storage tank 200 is further provided with a temperature control unit for detecting or controlling the temperature of the electrolyte in the liquid storage tank 200.

In some embodiments, the outer periphery of the liquid storage tank 200 is further provided with a heat exchanging member 270, and the heat exchanging member 270 is attached to the outer periphery of the liquid storage tank 200, and the heat exchanging member is used for absorbing heat and dissipating heat. The heat exchange piece is of a stainless steel, steel plate and other structures. The heat exchange member 270 can also be part of a temperature control unit.

The heat exchanging member 270 extends in the longitudinal direction. The heat exchanging member 270 extends longitudinally in the liquid storage tank 200 not only to increase the heat exchanging area, but also to enhance the structural strength of the liquid storage tank 200.

The liquid storage tank 200 is used as a tank structure, the outer wall of the liquid storage tank 200 can be used for heating and cooling, and the underground water or water in a reservoir can be used for cooling, so that the use of a heat exchanger and an air conditioner is reduced, the energy consumption is reduced, and the system operation efficiency is improved.

The heat exchange piece is of a tubular structure with a heat exchange channel formed inside, and the heat exchange channel is used for circulation of heat exchange media. The heat exchange channel in the heat exchange piece can be communicated with groundwater or water in a reservoir for cooling. Corresponding to cold weather or cold areas, the heat exchange channel in the heat exchange piece can be communicated with hot water or steam for heating so as to heat the electrolyte in the liquid storage tank.

In the related art, the temperature in the liquid storage tank 200 is higher and lower than the preset temperature range, which may cause precipitation of solids in the liquid storage tank 200, affecting the quality of the electrolyte.

According to the application, the tank has a temperature control function through the arrangement of the temperature control unit. The temperature control function is set so as to control the temperature of the electrolyte of the liquid storage tank 200 during transportation and use of the tank, so that the temperature of the electrolyte is kept within a preset temperature range during transportation and use, and the liquid flow energy storage tank forms a tank structure integrating temperature control and transportation.

In this embodiment, a liquid sump 280 is disposed at the bottom of the outer side of the liquid storage tank 200, and the liquid sump 280 is used for collecting the leaked and permeated electrolyte in the liquid storage tank 200. The bottoms of the positive liquid storage tank 201 and the negative liquid storage tank 202 are respectively provided with a liquid accumulation tank 280, and the liquid accumulation tanks 280 are positioned in the enclosing range of the frame 100. An alarm device is arranged in the liquid accumulation tank to alarm the liquid leakage.

The liquid collecting tank is provided with a liquid outlet, and a liquid outlet pipe is arranged at the liquid outlet for discharging the liquid collecting liquid in the liquid collecting tank.

In one embodiment, each reservoir is provided with a drain tube for separately draining the liquid product in the corresponding reservoir.

In another embodiment, the energy storage power station comprises a plurality of liquid storage tanks, each liquid storage tank is respectively provided with a liquid discharge pipe, and outlets of the liquid storage tanks are connected so as to be capable of discharging accumulated liquid from the same position or to the same position.

In this embodiment, a reinforcing rib is further disposed in the liquid storage tank 200. Reinforcing ribs are arranged in the positive electrode liquid storage tank 201 and the negative electrode liquid storage tank 202.

In one embodiment, the reinforcing bars can also be disposed outside of the reservoir 200.

Fig. 5 is a schematic structural diagram of the flow equalization plate 290 of the present invention.

Referring to fig. 1 to 5, in the present embodiment, a flow equalizing plate 290 is disposed in the liquid storage tank 200, the flow equalizing plate 290 is vertically disposed in the liquid storage tank 200, and a plurality of through flow equalizing holes 291 are formed in the flow equalizing plate 290. The flow equalizing plate 290 can divide the space in the liquid storage tank 200, and flow equalizing holes 291 on the flow equalizing plate 290 are used for circulation of electrolyte. The flow equalization plates 290 are provided to function as a wave guard and promote uniform flow of electrolyte.

The flow equalizing plates 290 are provided at intervals in the longitudinal direction to divide the space in the liquid storage tank 200 into a plurality of chambers.

In this embodiment, the outer peripheral edge of the flow equalizing plate 290 is fixed on the inner peripheral wall of the liquid storage tank 200, and the outer periphery of the flow equalizing plate 290 is fixed on the inner peripheral wall of the liquid storage tank 200 by welding or the like.

The flow equalizing plate 290 has a through-going liquid passage 292 formed in the outer peripheral edge thereof. The liquid passing groove 292 is used for flowing the electrolyte, and the caliber of the liquid passing groove 292 is larger than that of the flow equalizing hole 291.

In one embodiment, the shape of the liquid passing trough 292 may be arcuate.

In one embodiment, the shape of the liquid passing trough 292 may be circular.

In one embodiment, the shape of the liquid passing trough 292 may be polygonal.

In some embodiments, the shape of the liquid passing trough 292 is a combination of any of an arc, a circle, and a polygon.

Fig. 6 is a schematic diagram of a first embodiment of a fluid reservoir 200 according to the present invention. Fig. 7 is a schematic view showing the flow of the electrolyte in use in the first embodiment of the liquid storage tank 200 of the present invention.

Referring to fig. 1 to 7, the liquid storage tank 200 further includes a liquid inlet pipe 310 and a liquid outlet pipe 320, the liquid inlet pipe 310 communicating with an upper portion of the liquid storage tank 200 so as to be detachably connected to the liquid inlet pipe 310 through a pipe. The liquid outlet pipe 320 communicates with the lower portion of the liquid storage tank 200 so as to be detachably connected to the liquid outlet pipe 320 through a pipe.

The liquid storage tank 200 is arranged in the frame 100, the liquid inlet pipe 310 and the liquid outlet pipe 320 are respectively connected in a separable way through pipelines, and electrolyte is contained in the liquid storage tank 200. The top and bottom of the frame 100 are provided with corner fittings to facilitate transport of the liquid flow tank and stacking of the liquid flow tank after transport to a destination. The liquid inlet pipe 310 and the liquid outlet pipe 320 are connected to the pipe unit 500 through pipes, respectively.

The shell of the liquid storage tank 200 is of a structure made of metal materials so as to be capable of being used for a long time, and the electrolyte can be transported along with the liquid storage tank 200, so that the electrolyte does not need to be transported independently, and the use of the liquid flow energy storage tank is facilitated.

The liquid inlet pipe 310 is arranged at the top of the liquid storage tank 200, and the liquid outlet pipe 320 is arranged at the bottom of the liquid storage tank 200 so as to feed liquid at the top and discharge liquid at the bottom of the liquid storage tank 200.

In one embodiment, the inlet tube 310 may be disposed at one end of the reservoir 200 in the longitudinal direction, and the inlet tube 310 may be disposed near one end of the reservoir 200 in the longitudinal direction.

In one embodiment, the inlet tube 310 may be disposed in the middle of the longitudinal direction of the reservoir 200.

In another embodiment, the liquid inlet pipe 310 is disposed at one end of the liquid storage tank 200 in the longitudinal direction, and the liquid outlet pipe 320 is disposed at the other end of the liquid storage tank 200 in the longitudinal direction.

In another embodiment, the outlet tube 320 is disposed in the middle of the longitudinal direction of the fluid reservoir 200.

Referring to fig. 6 and 7, in one embodiment, a liquid inlet tube 310 is disposed at the top of the liquid storage tank 200, and the liquid inlet tube 310 is disposed at one end of the liquid storage tank 200 in the longitudinal direction. The liquid outlet pipe 320 is arranged at the bottom of the liquid storage tank 200, and the liquid outlet pipe 320 is positioned at the other longitudinal end of the liquid storage tank 200. The position between the liquid inlet pipe 310 and the liquid outlet pipe 320 is set so that the electrolyte can move from one end of the top longitudinal direction of the liquid storage tank 200 toward the other end of the bottom longitudinal direction of the liquid storage tank, so that the electrolyte can sufficiently flow in the liquid storage tank 200.

Fig. 8 is a schematic diagram of a second embodiment of a fluid reservoir 200 according to the present invention. Fig. 9 is a schematic view showing the flow of an electrolyte in use in a second embodiment of the liquid storage tank 200 of the present invention.

Referring to fig. 8 and 9, in the present embodiment, a liquid inlet pipe 310 is disposed at the top of the liquid storage tank 200, and the liquid inlet pipe 310 is located at the middle of the liquid storage tank 200 in the longitudinal direction. The liquid outlet pipe 320 is disposed at the bottom of the liquid storage tank 200, and the liquid outlet pipe 320 is disposed at one end of the liquid storage tank 200 in the longitudinal direction. The position between the inlet pipe 310 and the outlet pipe 320 is set so that the electrolyte can move from the middle of the top longitudinal direction of the reservoir 200 toward one end of the bottom longitudinal direction of the reservoir.

In this embodiment, the liquid inlet pipe 310 is disposed in a middle portion of the liquid storage tank 200 in a longitudinal direction, the liquid inlet pipe 310 includes a main liquid inlet pipe 311 and a branch liquid inlet pipe 312, an inlet of the main liquid inlet pipe 311 extends out of the liquid storage tank 200, the branch liquid inlet pipe 312 is connected to an outlet of the main liquid inlet pipe 311, and a plurality of outlets are formed in the branch liquid inlet pipe 312. The multiple outlets of the feed pipe 312 are branched so that the electrolyte can enter the liquid storage tank 200 from the multiple outlets of the feed pipe 310, thereby making the flow of the electrolyte in the liquid storage tank 200 more uniform.

The outlet of the branch liquid inlet pipe can be provided with a structure such as a shower head or a nozzle, so that the electrolyte is uniformly sprayed out, and the flow of the electrolyte in the liquid storage tank is more uniform.

The multiple outlets of the branch inlet 312 are spaced to allow electrolyte to enter the reservoir 200 from different locations, thereby providing a more uniform flow of electrolyte within the reservoir 200.

In this embodiment, the branch liquid inlet pipe 312 extends along a straight line, and the outlets of the branch liquid inlet pipe 312 are formed at two ends of the branch liquid inlet pipe 312. The branch inlet 312 extends longitudinally or transversely.

In one embodiment, two outlets are formed in the branch inlet 312.

In one embodiment, a plurality of through holes are formed in the side wall of the branched liquid inlet pipe 312 for the outflow of the electrolyte.

Fig. 10 is a schematic diagram of a third embodiment of a fluid reservoir 200 according to the present invention. Fig. 11 is a schematic view showing the flow of an electrolyte in use in a third embodiment of the liquid storage tank 200 of the present invention.

Referring to fig. 10 and 11, in the present embodiment, a liquid inlet pipe 310 is disposed at the top of the liquid storage tank 200, and the liquid inlet pipe 310 is located at the middle of the liquid storage tank 200 in the longitudinal direction. The liquid outlet pipe 320 is disposed at the bottom of the liquid storage tank 200, and the liquid outlet pipe 320 is disposed at the middle of the liquid storage tank 200 in the longitudinal direction. The position between the liquid inlet pipe 310 and the liquid outlet pipe 320 is set so that the electrolyte can move from the middle part of the top longitudinal direction of the liquid storage tank 200 to the middle part of the bottom longitudinal direction of the liquid storage tank, and the electrolyte at the two ends of the liquid storage tank 200 is driven to move to the middle part of the bottom.

In this embodiment, the structure of the liquid inlet pipe 310 refers to the structure of the liquid inlet pipe 310 in the second embodiment of the liquid storage tank 200.

In this embodiment, the liquid outlet pipe 320 is disposed at a middle lower portion of the liquid storage tank 200 in a longitudinal direction, the liquid outlet pipe 320 includes a main liquid outlet pipe 321 and a branch liquid outlet pipe 322, an outlet of the main liquid outlet pipe 321 extends out of the liquid storage tank 200, the branch liquid outlet pipe 322 is connected to an inlet of the main liquid outlet pipe 321, and the branch liquid outlet pipe 322 is formed with a plurality of inlets. The multiple inlets of the outlet pipe 322 are branched so that the electrolyte can enter the outlet pipe 320 from the multiple inlets of the outlet pipe 320, thereby making the flow of the electrolyte in the liquid storage tank 200 more uniform.

The multiple inlets of the branch outlet pipe 322 are spaced apart to allow electrolyte to enter the outlet pipe 320 from different locations, thereby making the flow of electrolyte in the reservoir 200 more uniform.

In this embodiment, the branch outlet pipe 322 extends along a straight line, and the outlets of the branch outlet pipe 322 are formed at two ends of the branch inlet pipe 312. The branch outlet pipe 322 extends in the longitudinal direction or in the transverse direction.

In one embodiment, the side wall of the branch outlet pipe 322 is provided with a plurality of through holes for the inflow of the electrolyte.

In one embodiment, two inlets are formed in the branch inlet 312.

Fig. 12 is a schematic diagram of a fourth embodiment of a fluid reservoir 200 of the present invention. Fig. 13 is a schematic view showing the flow of an electrolyte in use in a fourth embodiment of the liquid storage tank 200 of the present invention.

Referring to fig. 12 and 13, in this embodiment, a liquid inlet pipe 310 is disposed at the top of the liquid storage tank 200, and the liquid inlet pipe 310 is located at the middle of the liquid storage tank 200 in the longitudinal direction. The liquid outlet pipe 320 is disposed at the bottom of the liquid storage tank 200, and the liquid outlet pipe 320 is disposed at the middle of the liquid storage tank 200 in the longitudinal direction. The position between the liquid inlet pipe 310 and the liquid outlet pipe 320 is set so that the electrolyte can move from the middle part of the top longitudinal direction of the liquid storage tank 200 to the middle part of the bottom longitudinal direction of the liquid storage tank, and the electrolyte at the two ends of the liquid storage tank 200 is driven to move to the middle part of the bottom.

In this embodiment, the structure of the liquid inlet pipe 310 refers to the structure of the liquid inlet pipe 310 in the third embodiment of the liquid storage tank 200. The difference is that in this embodiment, four outlets are provided on the branched liquid inlet pipe 312, and the four outlets of the branched liquid inlet pipe 312 are provided around the main liquid inlet pipe 311.

The branched liquid inlet pipes 312 are provided in two, and the two branched liquid inlet pipes 312 extend in the lateral and longitudinal directions, respectively, and the two branched liquid inlet pipes 312 intersect, so that the liquid inlet pipe 310 is formed with four outlets.

In this embodiment, the structure of the liquid outlet pipe 320 refers to the structure of the liquid outlet pipe 320 in the third embodiment of the liquid storage tank 200. The difference is that in this embodiment, four inlets are provided on the outlet pipe 320. The structure of the liquid outlet pipe 320 refers to the structure and position of the liquid inlet pipe 310 in this embodiment.

Fig. 14 is a schematic view of a fifth embodiment of a fluid reservoir 200 according to the present invention. Fig. 15 is a schematic view showing the flow of an electrolyte in use in a fifth embodiment of the liquid storage tank 200 of the present invention.

Referring to fig. 14 and 15, in this embodiment, a liquid inlet pipe 310 is disposed at the top of the liquid storage tank 200, and the liquid inlet pipe 310 is located at the middle of the liquid storage tank 200 in the longitudinal direction. The liquid outlet pipe 320 is disposed at the bottom of the liquid storage tank 200, and the liquid outlet pipe 320 is disposed at one end of the liquid storage tank 200 in the longitudinal direction. The position between the inlet pipe 310 and the outlet pipe 320 is set so that the electrolyte can move from the middle of the top longitudinal direction of the reservoir 200 toward one end of the bottom longitudinal direction of the reservoir.

In this embodiment, the liquid inlet pipe 310 is disposed in a middle portion of the liquid storage tank 200 in a longitudinal direction, the liquid inlet pipe 310 includes a main liquid inlet pipe 311 and a branch liquid inlet pipe 312, an inlet of the main liquid inlet pipe 311 extends out of the liquid storage tank 200, the branch liquid inlet pipe 312 is connected to an outlet of the main liquid inlet pipe 311, and a plurality of outlets are formed in the branch liquid inlet pipe 312. The multiple outlets of the feed pipe 312 are branched so that the electrolyte can enter the liquid storage tank 200 from the multiple outlets of the feed pipe 310, thereby making the flow of the electrolyte in the liquid storage tank 200 more uniform.

Further, the liquid inlet pipe 310 further comprises a plurality of liquid inlet branch pipes 313, the plurality of liquid inlet branch pipes 313 are arranged at intervals along the length direction of the branched liquid inlet pipe 312, one ends of the plurality of liquid inlet branch pipes 313 are connected to the branched liquid inlet pipe 312, and the outlets of the liquid inlet pipe 310 are increased through the arrangement of the liquid inlet branch pipes 313, so that the flow of the electrolyte in the liquid storage tank 200 is more uniform.

In this embodiment, the branched liquid inlet pipe 312 extends in the longitudinal direction, two ends of the branched liquid inlet pipe 312 in the longitudinal direction are respectively close to the end portions of the liquid storage tank 200, and the liquid inlet branch pipes 313 are arranged on the branched liquid inlet pipe 312 at intervals in the longitudinal direction.

In some embodiments, the branched inlet 312 extends in a lateral direction and the plurality of inlet branches 313 are spaced apart in the lateral direction.

Fig. 16 is a schematic view of a sixth embodiment of a liquid storage tank 200 according to the present invention. Fig. 17 is a schematic view showing the flow of an electrolyte in use in a sixth embodiment of the liquid storage tank 200 of the present invention.

Referring to fig. 16 and 17, in the present embodiment, a liquid inlet pipe 310 is disposed at the top of the liquid storage tank 200, and the liquid inlet pipe 310 is located at the middle of the liquid storage tank 200 in the longitudinal direction. The liquid outlet pipe 320 is disposed at the bottom of the liquid storage tank 200, and the liquid outlet pipe 320 is disposed at the middle of the liquid storage tank 200 in the longitudinal direction. The position between the liquid inlet pipe 310 and the liquid outlet pipe 320 is set so that the electrolyte can move from the middle part of the top longitudinal direction of the liquid storage tank 200 to the middle part of the bottom longitudinal direction of the liquid storage tank, and the electrolyte at the two ends of the liquid storage tank 200 is driven to move to the middle part of the bottom.

In the present embodiment, the liquid inlet pipe 310 refers to the structure of the liquid inlet pipe 310 in the fifth embodiment.

In this embodiment, the liquid outlet pipe 320 is disposed in a middle portion of the liquid storage tank 200 in a longitudinal direction, the liquid outlet pipe 320 includes a main liquid outlet pipe 321 and a branch liquid outlet pipe 322, an outlet of the main liquid outlet pipe 321 extends out of the liquid storage tank 200, the branch liquid outlet pipe 322 is connected to an inlet of the main liquid outlet pipe 321, and the branch liquid inlet pipe 312 is formed with a plurality of inlets. The multiple inlets of the liquid inlet pipe 312 are branched so that the electrolyte can enter the liquid outlet pipe 320 from the multiple inlets of the liquid outlet pipe 320, thereby making the flow of the electrolyte in the liquid storage tank 200 more uniform.

Further, the liquid outlet pipe 320 further comprises a plurality of liquid outlet branch pipes 323, wherein the plurality of liquid outlet branch pipes 323 are arranged at intervals along the length direction of the branched liquid outlet pipe 322, and one end of each liquid outlet branch pipe 323 is connected to the branched liquid outlet pipe 322, so that the inlet of the liquid outlet pipe 320 is increased through the arrangement of the liquid outlet branch pipe 323, and the flow of the electrolyte in the liquid storage tank 200 is more uniform.

In this embodiment, the branch liquid outlet pipe 322 extends in the longitudinal direction, two ends of the branch liquid outlet pipe 322 in the longitudinal direction are respectively close to the end portions of the liquid storage tank 200, and the liquid outlet branch pipes 323 are arranged on the branch liquid outlet pipe 322 at intervals in the longitudinal direction.

In some embodiments, the branched outlet pipe 322 extends in a lateral direction, and the plurality of outlet pipes 323 are arranged at intervals in the lateral direction.

In one embodiment, the flow equalizing plate 290 is disposed in the liquid storage tank 200, so that the space in the liquid storage tank 200 is divided into a plurality of chambers, and the liquid storage branch pipes are respectively disposed in one chamber, so that the flow of the electrolyte in the liquid storage tank 200 is more uniform.

Based on the structure, the liquid storage tank is also internally provided with a plurality of partition boards which are longitudinally arranged at intervals so as to divide the cavity in the liquid storage tank into a plurality of compartments, and each compartment is internally provided with a liquid inlet pipe and a liquid outlet pipe respectively.

Referring again to fig. 1-5, the energy storage power station further includes a galvanic pile unit 400. The pipe unit 500 is connected to the stack unit 400, and the pipe unit 500 includes a plurality of pipes or tubes. The pile unit 400 is connected to the positive electrode reservoir 201 and the negative electrode reservoir 202 through pipe units 500, respectively. The positive electrode liquid storage tank 201, the negative electrode liquid storage tank 202 and the galvanic pile unit 400 constitute a main structure of the flow battery. The positive electrode electrolyte and the negative electrode electrolyte exchange electrons in the cell stack unit 400, thereby forming a current in the cell stack unit 400.

The positive electrode reservoir 201, the negative electrode reservoir 202, and the cell stack unit 400 are respectively disposed in different frames 100. The top and bottom of the frame 100 are provided with corner pieces to be able to be fixed on a transport vehicle and to be able to be fixed and stacked on each other. Thereby facilitating the transportation and installation of the individual units in the energy storage power station and enabling the individual units of the energy storage power station to be stacked upon each other when in use, so as to occupy less space.

In this embodiment, the frame 100 includes a plurality of frames 100 of the same size, and the positive electrode reservoir 201, one negative electrode reservoir 202, and the stack unit 400 are each disposed in one frame 100. The battery management system 700 and the stack unit 400 are disposed in the same frame 100 and are disposed at an upper and lower interval. A plurality of frames 100 of the same size can be stacked on one another and transported separately. The transportation and the installation of the energy storage power station are convenient, and all units of the energy storage power station can be stacked to occupy smaller space.

The pipe unit 500 is detachably connected to the positive and negative electrode tanks 201 and 202, thereby facilitating the installation of the energy storage power station for quick installation after the energy storage power station is moved to the installation position.

The energy storage power station further comprises a magnetic pump 600, wherein the magnetic pump 600 is arranged in the pipeline unit 500, and the magnetic pump 600 is respectively arranged corresponding to the positive electrode liquid storage tank 201 and the negative electrode liquid storage tank 202 so as to drive positive electrode electrolyte to flow between the positive electrode liquid storage tank 201 and the galvanic pile unit 400 and drive negative electrode electrolyte to flow between the negative electrode liquid storage tank 202 and the galvanic pile unit 400.

The energy storage power station further comprises a battery management system 700, and the battery management system 700 and the electric pile unit 400 are arranged in the same frame 100 and are arranged at intervals. The Battery management system 700 includes a BMS (Battery MANAGEMENT SYSTEM) and an EMS (ENERGY MANAGEMENT SYSTEM ).

FIG. 18 is a schematic structural view of a second embodiment of an energy storage power station of the present invention. Fig. 19 is a schematic stacking view of the structure of fig. 18.

Referring to fig. 18 and 19, the positive electrode tank 201 and the negative electrode tank 202 are provided in two, respectively, the two positive electrode tanks 201 are provided in different frames 100, and the two negative electrode tanks 202 are provided in different frames 100. The liquid storage tanks 200 containing the same electrolyte are connected through pipelines.

The plurality of frames 100 includes a first frame 110, a second frame 120, and a third frame 130, both the second frame 120 and the third frame 130 can be fixed to the first frame 110, and the stack unit 400 is disposed in the third frame 130.

In this embodiment, two first frames 110 are provided, the two first frames 110 are mutually attached in the longitudinal direction, one positive electrode liquid storage tank 201 and one negative electrode liquid storage tank 202 are respectively provided in the two first frames 110, and the third frame 130 is clamped between the two second frames 120 in the longitudinal direction.

The two second frames 120 are used to mount one positive electrode reservoir 201 and one negative electrode reservoir 202, respectively, and the total length of the two second frames 120 and the third frame 130 in the longitudinal direction is equal to the total length of the two first frames 110 in the longitudinal direction. Therefore, on the basis of ensuring that the energy storage power station occupies the minimum area on the horizontal plane, the structure formed by the energy storage power station has the maximum volume, so that the positive electrode liquid storage tank 201 and the negative electrode liquid storage tank 202 with the maximum volumes can be accommodated, and the energy storage power station has larger energy storage capacity.

In this embodiment, two first frames 110, two second frames 120, and one third frame 130 form a frame structure of a group of energy storage power stations. Two second frames 120 and one third frame 130 are each fixed to two first frames 110. The two second frames 120 are located at both sides of the third frame 130 in the longitudinal direction, respectively. The two ends of the longitudinal side of the third frame 130 are fixedly connected to one first frame 110, respectively, and can also play a limiting role on the two first frames 110.

The first frame 110, the two second frames 120, and one third frame 130 are connected by corner pieces when stacked. Corner pieces are provided at corresponding positions on the first frame 110 for connecting the second frame 120 and the third frame 130. A cross bar extending in a lateral direction is further provided at an upper end of the first frame 110, and is used to support the second and third frames 120 and 130.

The two first frames 110, the two second frames 120, and the one third frame 130 constitute a frame structure of a set of energy storage power stations. Multiple sets of energy storage power stations can be stacked on top of each other.

FIG. 20 is a schematic structural view of a third embodiment of an energy storage power station of the present invention.

Referring to fig. 20 in combination with fig. 1 to 19, in the present embodiment, the energy storage power station refers to the structure of the energy storage power station in the second embodiment. The difference is that:

In this embodiment, the frame 100 includes two frames 100 of the same size that can be stacked up and down, one frame 100 is provided with a positive tank 201 and a negative tank 202 at intervals in the longitudinal direction, and the other frame 100 is provided with a positive tank 201, a negative tank 202 and a galvanic pile unit 400. The battery management system 700 and the stack unit 400 are disposed in the same frame 100 and are disposed at an upper and lower interval.

In one embodiment, a positive reservoir 201 and a negative reservoir 202 are disposed in a reservoir 200 and separated by a separator.

FIG. 21 is a schematic structural view of a fourth embodiment of an energy storage power station of the present invention.

Referring to fig. 21 in combination with fig. 1 to 20, in the present embodiment, the energy storage power station includes a liquid flow energy storage tank, a pile unit 400, a pipeline unit 500, an electric control unit, and a magnetic pump 600.

The liquid flow tank in this embodiment can refer to any of the liquid flow tank described above. For example, a plurality of frames are provided, one tank is provided in one frame, or a plurality of tanks are provided in one frame.

In this embodiment, a plurality of pile units are provided, and the pile units are respectively provided in different frames. The plurality of frames provided with the stack units can be stacked on each other.

It should be noted that in some embodiments, the liquid storage tank is provided with a plurality of liquid inlet pipes and a plurality of liquid outlet pipes, the liquid inlet pipes are arranged at intervals, and the liquid outlet pipes are arranged at intervals, so that the flow of the electrolyte in the liquid storage tank is more uniform.

The application also provides an application of the energy storage power station:

And transporting all frames of the energy storage power station to a destination, so that the liquid storage tank containing the electrolyte is integrally transported to the destination along with the frames.

Electrolyte is contained in the liquid flow energy storage tank, and can be transported along with the liquid flow energy storage tank. The electrolyte does not need to be transported separately. And the flow energy storage tank provided with electrolyte can be transported separately with the frame to enable direct replacement or addition of the corresponding flow energy storage tank at the energy storage station.

The liquid storage tanks, the galvanic pile units and the magnetic pumps can move together with the corresponding frames, so that the whole energy storage power station can be transported together and installed together for use at a destination.

The frames transported to the destination are stacked and secured by corner fittings. The pipe units are connected between the corresponding liquid storage tanks and the pile units so that positive electrolyte can flow between the positive liquid storage tanks and the pile units and negative electrolyte can flow between the negative liquid storage tanks and the pile units, and accordingly current can be formed in the pile units.

In the present invention, the frames 100 can be transported separately and can be stacked together by corner pieces for use after being transported to a destination. The frames 100 of the energy storage power stations are stacked for use such that the energy storage power stations occupy a smaller area. The pipe units 500 are detachably connected so that the positive and negative tank 201 and 202 within the frame 100 can be detached from the pipe units 500 during transportation to facilitate transportation, and can be connected through the pipe units 500 after transportation.

The energy storage power station is arranged by the frame 100 such that the energy storage power station is arranged as a plurality of individual modules. The arrangement of a plurality of independent modules is convenient for transportation and stacking installation, so that the use of the liquid flow energy storage power station is facilitated, and the application scene of the energy storage power station is expanded.

The positive electrolyte and the negative electrolyte are respectively placed in different liquid storage tanks 200, and the liquid flow energy storage tank is used as a tank structure, so that the liquid flow energy storage tank is long in service life and convenient to use, the liquid flow energy storage tank and the electrolyte can be leased for use, and the initial construction cost of a user is reduced.

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.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediate medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances. In the description of the present specification, reference to the terms "some embodiments," "exemplary," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present application have been shown and described, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made in the above embodiments by those skilled in the art within the scope of the application, which is therefore intended to be covered by the appended claims and their equivalents.

Claims (18)

1. A liquid flow energy storage tank comprising:

The top and the bottom of the frame are provided with corner fittings;

the liquid storage tank is used for containing electrolyte and is fixed in the frame;

The liquid storage tank comprises a liquid inlet pipe and a liquid outlet pipe, wherein the liquid inlet pipe is communicated with the upper part of the liquid storage tank so as to be detachably connected with the liquid inlet pipe through a pipeline, and the liquid outlet pipe is communicated with the lower part of the liquid storage tank so as to be detachably connected with the liquid outlet pipe through a pipeline.

2. The liquid flow energy storage tank as claimed in claim 1, wherein the liquid storage tank is provided with a plurality of liquid inlet pipes and a plurality of liquid outlet pipes, the liquid inlet pipes are arranged at intervals, and the liquid outlet pipes are arranged at intervals.

3. The liquid flow energy storage tank as claimed in claim 1, wherein the liquid inlet pipe comprises a main liquid inlet pipe and a branch liquid inlet pipe, the inlet of the main liquid inlet pipe extends out of the liquid storage tank, the branch liquid inlet pipe is connected with the outlet of the main liquid inlet pipe, and a plurality of outlets are formed on the branch liquid inlet pipe.

4. The tank of claim 3, wherein the feed pipe further comprises a plurality of feed branches, the feed branches are arranged at intervals along the length direction of the branch feed pipe, and one ends of the feed branches are connected to the branch feed pipe.

5. The tank of any one of claims 1 to 4, wherein the outlet pipe comprises a main outlet pipe and a branch outlet pipe, the outlet of the main outlet pipe extends out of the liquid storage tank, the branch outlet pipe is connected with the inlet of the main outlet pipe, and the branch outlet pipe is provided with a plurality of inlets.

6. The tank of claim 5, wherein the outlet pipe further comprises a plurality of outlet pipes, the plurality of outlet pipes being spaced apart along the length of the branched outlet pipe, one end of the plurality of outlet pipes being connected to the branched outlet pipe.

7. The liquid flow energy storage tank as claimed in claim 1, wherein a temperature control unit is arranged on the liquid storage tank for detecting and controlling the temperature of the electrolyte in the liquid storage tank.

8. The liquid flow energy storage tank as claimed in claim 1, wherein the outer Zhou Jun of the liquid storage tank is attached to and fixed with a heat exchange member, the heat exchange member extends longitudinally, the heat exchange member has a tubular structure with a heat exchange channel formed therein, and the heat exchange channel is used for circulation of a heat exchange medium.

9. The liquid flow energy storage tank according to claim 1, wherein a liquid accumulation tank is arranged at the bottom of the liquid storage tank, the liquid accumulation tank is arranged at the outer side of the liquid storage tank, and an alarm device is arranged in the liquid accumulation tank.

10. The liquid flow energy storage tank as claimed in claim 9, wherein a liquid outlet is formed on the liquid accumulation tank, and a liquid outlet pipe is arranged at the liquid outlet for discharging the liquid accumulation in the liquid accumulation tank.

11. The liquid flow energy storage tank as claimed in claim 1, wherein a flow equalizing plate is arranged in the liquid storage tank, the flow equalizing plate is vertically arranged in the liquid storage tank, and a plurality of through flow equalizing holes are formed in the flow equalizing plate.

12. The liquid flow energy storage tank as claimed in claim 11, wherein the outer peripheral edge of the flow equalizing plate is fixed on the inner peripheral wall of the liquid storage tank, and the outer peripheral edge of the flow equalizing plate is provided with a through liquid passing groove.

13. The liquid flow energy storage tank of claim 12, wherein the shape of the liquid passing trough is one or a combination of any of an arc, a circle and a polygon.

14. The tank of claim 11 wherein said flow equalization plates are longitudinally spaced apart.

15. The liquid flow energy storage tank as claimed in claim 1, wherein a plurality of partition boards are further arranged in the liquid storage tank, the partition boards are longitudinally arranged at intervals to divide the cavity in the liquid storage tank into a plurality of compartments, and a liquid inlet pipe and a liquid outlet pipe are respectively arranged in each compartment.

16. The liquid flow energy storage tank of claim 1, wherein the housing of the liquid storage tank is a structure made of a metal material or a carbon fiber material.

17. An energy storage power station is characterized by comprising a pile unit, a pipeline unit, an electric control unit, a magnetic pump and the liquid flow energy storage tank box as claimed in any one of claims 1 to 16, wherein a plurality of frames are arranged;

the liquid storage tank comprises an anode liquid storage tank and a cathode liquid storage tank, wherein the anode liquid storage tank is filled with anode electrolyte, the anode liquid storage tank is arranged in one or more frames, the cathode liquid storage tank is filled with cathode electrolyte, and the cathode liquid storage tank is arranged in one or more frames;

The electric pile unit is arranged in one or more frames, and is connected with a pipeline unit, and the electric pile unit is respectively connected with the positive electrode liquid storage tank and the negative electrode liquid storage tank through the pipeline unit;

The magnetic pump is arranged in the pipeline unit, the magnetic pump and the pile unit are arranged in the same frame, and the magnetic pump is respectively arranged corresponding to the positive electrode liquid storage tank and the negative electrode liquid storage tank so as to drive positive electrode electrolyte to flow between the positive electrode liquid storage tank and the pile unit and drive negative electrode electrolyte to flow between the negative electrode liquid storage tank and the pile unit.

18. An application of an energy storage power station is characterized in that,

Providing the energy storage power station of claim 17;

the positive electrode electrolyte is contained in the positive electrode liquid storage tank, and the negative electrode electrolyte is contained in the negative electrode liquid storage tank;

Transporting all the frames of the energy storage power station to a destination, so that the liquid storage tank containing electrolyte is integrally transported to the destination along with the frames;

Stacking the frames transported to a destination and secured by the corner pieces;

the pipe unit is connected between the corresponding liquid storage tank and the pile unit so that positive electrolyte can flow between the positive liquid storage tank and the pile unit and negative electrolyte can flow between the negative liquid storage tank and the pile unit, and thus current can be formed in the pile unit.