Feeding mechanism for flow battery electrolyte production
Through the alternating work of hydraulic bolus injection and push feeder, the corrosion problem of pumps and pipelines in the liquid flow battery electrolyte production equipment is solved, the continuous supply of electrolyte and the reduction of residues is achieved, and the corrosion resistance and operation simplicity of the equipment is improved.
Patent Information
- Application Number
- CN202422646371.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-10-31
AI Technical Summary
In the existing liquid flow battery electrolyte production equipment, the conveying method of pump and pipelines is prone to corrosion in the equipment and it is difficult to effectively avoid the residue of raw liquid.
The hydraulic bolus injection method is adopted to load the electrolyte through the push feeder and the piston structure, and the alternate work of the push feeder and the storage sleeve is used to combine the interference coordination of the piston to achieve continuous supply of the electrolyte and reduce residue.
The continuous supply of electrolyte is realized, the equipment structure is simplified, and the cleaning is facilitated, reducing equipment corrosion and stock solution residue.
Smart Images
Figure CN223225782U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrolyte production, in particular to a feeding mechanism for the production of electrolyte for a flow battery. Background Art
[0002] In the application process of modern new energy equipment, liquid flow batteries are widely used in fields such as reserve power supply of power plants due to their advantages such as energy storage capacity and high efficiency. The conversion and energy storage between electrical energy and chemical energy are realized through the valence change of active substances. The medium involved in the valence change reaction of active substances in liquid flow batteries is the electrolyte.
[0003] Therefore, in the production process of modern liquid flow batteries, the most important thing is the preparation of electrolyte. The main processes used in the current electrolyte preparation include the preparation of reducing solution and multiple reduction reactions. Since there are many ions in the electrolyte, the safety and corrosion resistance of the equipment are necessary factors to consider in the production equipment. The current electrolyte production equipment mainly uses pumps and pipelines to transport the solutions used for the positive and negative electrodes. However, this transportation method is prone to residual raw liquid in the pump or pipeline due to the complex internal structure of the pump, causing corrosion of the equipment. In view of this, in-depth research on the above problems has led to the emergence of this case. Utility Model Content
[0004] In view of the deficiencies of the prior art, the utility model provides a feeding mechanism for the production of electrolyte for flow batteries, which solves the problems of the prior art.
[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a feeding mechanism for liquid flow battery electrolyte production, comprising an electrolytic cell, the electrolytic cell being a hollow kettle body, a sealing cover being provided on the top of the electrolytic cell, a liquid inlet pipe being provided on the sealing cover, a support frame being provided on one side of the electrolytic cell, a liquid storage tank being provided on the support frame, and an isolation feeding structure being connected to one side of the liquid storage tank;
[0006] The end of the liquid inlet pipe is provided with a connecting joint, and the connecting joint is connected to the feeding pipe and communicates with the isolation feeding structure;
[0007] The isolated feeding structure includes at least one pair of containing sleeves, the pair of containing sleeves are arranged in parallel, one end of the pair of containing sleeves is connected to a push feeder, and the feeding pipe is provided with a feeding joint corresponding to the containing sleeve, the feeding joint is connected to the containing sleeve and is provided with a one-way flap valve;
[0008] The liquid storage tank is connected to a delivery pipe, the delivery pipe is communicated with the containing sleeve, and a master control valve is provided on the delivery pipe;
[0009] The pushing feeder adopts a piston structure, and the feeding joint and the conveying pipe are connected to the end portion on the same side of the containing sleeve.
[0010] Preferably, the pushing feeder is composed of a fixing base connected to the containing sleeve, a propulsion cylinder installed on the fixing base, and a propulsion piston installed at the telescopic end of the propulsion cylinder.
[0011] Preferably, one end of the containing sleeve is provided with a threaded seat connected to the push feeder, and the other end of the containing sleeve is provided with a sealing end cover.
[0012] Preferably, the propulsion piston is a partially conical structure, and a sealing strip extends outward from the end of the propulsion piston to have an interference fit with the inner wall of the containing sleeve.
[0013] Preferably, the sealing end cover of the containing sleeve is connected to the feeding joint and the conveying pipe respectively.
[0014] Beneficial effects
[0015] The utility model provides a feeding mechanism for producing electrolytes for flow batteries. The mechanism has the following beneficial effects: The mechanism has a simple structure and no complex cavity structure. It specifically employs an alternating hydraulic push-injection method for feeding, with the original liquid being pushed and fed between the electrolyte storage tank and the electrolytic cell via a push feeder. This pipe-pushing method is simple in structure and easy to control, with the alternating operation of at least two push pipes ensuring continuous feeding. Furthermore, this pipe-pushing method is simple in structure and easy to clean, and the interference fit of the push piston reduces residue and prevents equipment corrosion. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a first three-dimensional structural schematic diagram of a feeding mechanism for producing electrolyte for a flow battery according to the present invention.
[0017] Figure 2 This is a second three-dimensional structural schematic diagram of a feeding mechanism for producing electrolyte for a flow battery according to the present invention.
[0018] Figure 3 This is a partial cross-sectional structural schematic diagram of a feeding mechanism for producing electrolyte for a flow battery according to the present invention.
[0019] In the figure: 1. electrolytic cell; 2. sealing cover; 3. liquid inlet pipe; 4. support frame; 5. liquid storage tank; 6. isolation feeding structure; 7. connecting joint; 8. feeding pipe; 61. filling sleeve; 62. pushing feeder; 63. feeding joint; 64. conveying pipe; 65. main control valve; 66. sealing end cover; 621. fixing seat; 622. propulsion cylinder; 623. propulsion piston. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0021] See also Figure 1-3 The utility model provides an implementation scheme: In the production process of modern liquid flow batteries, electrolyte is the most important working medium. When the electrolyte is produced, the reaction preparation is mostly carried out in the electrolytic cell 1. Therefore, during the electrolyte preparation process, the raw liquid needs to be introduced into the electrolytic cell 1. The raw liquid is mostly pumped into the electrolytic cell 1 by pumping. However, due to the complex structure of the pump casing, it is very easy for the raw liquid to remain, causing complexity to the pump casing and pipelines.
[0022] In response to the above problems, the present application discloses a feeding mechanism for the production of liquid flow battery electrolyte, specifically an electrolytic cell 1 as the preparation body of the electrode liquid, and the electrolytic cell 1 is a cavity kettle body for containing the raw liquid, and a sealing cover 2 is provided on the top of the electrolytic cell 1, and a liquid inlet pipe 3 is provided on the sealing cover 2. On the one hand, the sealing cover 2 plays a sealing role for the electrolytic cell 1, and on the other hand, the liquid inlet pipe 3 on the electrolytic cell 1 plays a role in feeding the electrolytic cell 1. A support frame 4 is provided on one side of the electrolytic cell 1, and a liquid storage tank 5 is provided on the support frame 4. An isolation feeding structure 6 is connected to one side of the liquid storage tank 5. The electrolyte raw liquid can be drawn from the liquid storage tank 5 through the isolation feeding structure 6, and then the raw liquid is passed into the electrolytic cell 1 through the liquid inlet pipe 3;
[0023] In order to more easily supply liquid to the electrolytic cell 1 during the electrolyte production process, a connecting joint 7 is provided at the end of the liquid inlet pipe 3. The connecting joint 7 is connected to a feeding pipe 8 that is in communication with the isolated feeding structure 6. The electrode liquid is supplied from the feeding pipe 8 to the electrolytic cell 1 through the isolated feeding structure 6. The connecting joint 7 is convenient for connection with the feeding pipe 8. At the same time, an auxiliary control valve is provided on the connecting joint 7 for controlling the switching of the feeding;
[0024] According to the instruction manual Figure 1-3It can be seen that the above-mentioned isolated feeding structure 6 includes at least one pair of containing sleeves 61, which are arranged in parallel. One end of the pair of containing sleeves 61 is connected to a push feeder 62, and the electrolyte is pressure-controlled on the pair of containing sleeves 61 through the push feeder 62. Through the alternating pressure changes of the pair of containing sleeves 61, a feeding joint 63 is provided on the feeding pipe 8 corresponding to the containing sleeves 61. The feeding joint 63 is connected to the containing sleeves 61 and is provided with a one-way flap valve. A delivery pipe 64 is connected to the liquid storage tank 5, and the delivery pipe 64 is in communication with the containing sleeves 61. The delivery pipe 64 is provided with a master control valve 65.
[0025] In the specific implementation process, the delivery pipe 64 is assembled at the bottom of the liquid storage tank 5. The liquid pressure in the liquid storage tank 5 is used to pass the raw liquid into the delivery pipe 64. By controlling the switch of the main control valve 65, the delivery pipe 64 is used to pass the raw electrolyte into the pair of receiving sleeves. The push feeder 62 is used to control the alternating operation of the receiving sleeve 61. The push feeder 62 is used to push the raw electrolyte from the receiving sleeve 61, and then pushed into the feeding pipe 8 through the feeding joint. From the feeding pipe 8, it is passed into the liquid inlet pipe 3 to realize the feeding of the raw electrolyte.
[0026] Furthermore, in order to make the feeding continuous, the above-mentioned pushing feeder 62 adopts a piston structure, the feeding connector 63 and the conveying pipe 64 are connected to the end of the same side of the containing sleeve 61, the containing sleeve 61 cooperates with the piston of the pushing feeder 62, and the pushing feeder 62 adopts an alternating working mode, so that a pair of containing barrels alternately feed the material continuously to the feeding pipe 8, and when the containing barrel on one side is working, the containing barrel on the other side is in a feeding state, which is convenient to control and simple in structure.
[0027] As a preferred solution, further, the pushing feeder 62 is composed of a fixed base 621 connected to the containing sleeve 61, a propulsion cylinder 622 installed on the fixed base 621, and a propulsion piston 623 installed at the telescopic end of the propulsion cylinder 622. The pushing feeder 62 is fixedly installed by the fixed base 621, and the propulsion piston 623 is controlled by the propulsion cylinder 622 so that the propulsion piston 623 can be extended and retracted in the containing barrel, thereby utilizing the negative pressure generated by the piston movement to complete the loading. After the loading is completed, the propulsion piston 623 is pushed in the opposite direction by the reverse push of the propulsion cylinder 622 to pass the material from the feeding connector 63 into the feeding pipe.
[0028] As a preferred solution, further, one end of the containing sleeve 61 is provided with a threaded seat connected to the pushing feeder 62, and the other end of the containing sleeve 61 is provided with a sealing end cover 66, which can be connected to the pushing feeder 62 through the threaded seat. The pushing feeder 62 can be disassembled and assembled by utilizing the threaded connection effect of the threaded seat, which facilitates the maintenance of the equipment, and the containing sleeve 61 can be further opened through the sealing end cover 66 at the other end of the containing sleeve for easy maintenance.
[0029] As a preferred solution, further, the propulsion piston 623 is a partially conical structure, and the end of the propulsion piston 623 extends outward to form a sealing strip that has an interference fit with the inner wall of the containing sleeve 61. The interference fit between the propulsion piston 623 and the containing sleeve 61 can effectively avoid the residue of the electrolyte concentrate and improve the sealing performance.
[0030] As a preferred solution, further, the sealing end cover 66 containing the sleeve 61 is connected to the feeding joint 63 and the delivery pipe 64 respectively, so as to facilitate the installation and replacement control of one side of the feeding pipe and the other side of the delivery pipe 64.
[0031] From the above, it can be seen that the feeding mechanism for the production of the flow battery electrolyte has a simple structure without a complex structure cavity, and specifically adopts an alternating hydraulic push injection method for feeding, and the raw liquid is pushed and fed between the electrolyte storage tank and the electrolytic cell 1 by pushing the feeder 62. On the one hand, this tube push method has a simple structure and is easy to control. The alternating work of at least two push tubes ensures the continuity of feeding. On the other hand, this tube push method has a simple structure and is easy to clean. By setting the interference fit of the push piston 623, the residue is reduced and the corrosion of the equipment is avoided.
[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A feeding mechanism for producing electrolyte of a flow battery, comprising an electrolytic cell (1), wherein the electrolytic cell (1) is a hollow kettle body, a sealing cover (2) is provided on the top of the electrolytic cell (1), and a liquid inlet pipe (3) is provided on the sealing cover (2), characterized in that: A support frame (4) is provided on one side of the electrolytic cell (1), a liquid storage tank (5) is provided on the support frame (4), and an isolation feeding structure (6) is connected to one side of the liquid storage tank (5); The end of the liquid inlet pipe (3) is provided with a connecting joint (7), and the connecting joint (7) is connected to a feeding pipe (8) and communicates with the isolation feeding structure (6); The isolated feeding structure (6) comprises at least one pair of containing sleeves (61), the pair of containing sleeves (61) are arranged in parallel, one end of the pair of containing sleeves (61) is connected to a pushing feeder (62), and a feeding joint (63) is provided on the feeding pipe (8) corresponding to the containing sleeves (61), and the feeding joint (63) is connected to the containing sleeves (61) and is provided with a one-way flap valve; The liquid storage tank (5) is connected to a delivery pipe (64), the delivery pipe (64) is in communication with the containing sleeve (61), and a master control valve (65) is provided on the delivery pipe (64); The pushing feeder (62) adopts a piston structure, and the feeding joint (63) and the conveying pipe (64) are connected to the end portion on the same side of the containing sleeve (61).
2. A feeding mechanism for producing electrolyte for flow batteries according to claim 1, characterized in that: The pushing feeder (62) is composed of a fixing base (621) connected to the containing sleeve (61), a propulsion cylinder (622) installed on the fixing base (621), and a propulsion piston (623) installed at the telescopic end of the propulsion cylinder (622).
3. The feeding mechanism for producing electrolyte of a flow battery according to claim 1, characterized in that: One end of the containing sleeve (61) is provided with a threaded seat connected to the pushing feeder (62), and the other end of the containing sleeve (61) is provided with a blocking end cover (66).
4. The feeding mechanism for producing electrolyte for flow battery according to claim 2, characterized in that: The propulsion piston (623) is a partially conical structure, and a sealing strip extends outward from the end of the propulsion piston (623) to form an interference fit with the inner wall of the containing sleeve (61).
5. The feeding mechanism for producing electrolyte for flow battery according to claim 4, characterized in that: The sealing end cover (66) of the containing sleeve (61) is connected to the feeding joint (63) and the conveying pipe (64) respectively.