Safe filtering device for lithium battery electrolyte

Abstract

The utility model discloses a safe filtering device for lithium battery electrolyte, which comprises a liquid storage tank, a fixed pipe fixedly penetrates through one side of the top of the liquid storage tank, and an electric lifting piston is mounted on the fixed pipe; a shell fixedly penetrates through the air outlet end of the fixed pipe, and an adsorption filtering assembly is inserted into the top of the shell in a sealing manner; a collecting pipe fixedly penetrates through the outer wall of one side of the shell, an air pumping and discharging assembly fixedly penetrates through the air pumping end of the collecting pipe, a connecting pipe fixedly penetrates through the air outlet end of the air pumping and discharging assembly, and the connecting pipe is fixedly installed on the outer wall, located on one side of the fixing pipe, of the shell and fixedly penetrates through the shell. According to the utility model, when the adsorption plate is replaced, the device seals the air inlet end of the fixed pipe through the electric lifting piston, so that waste gas leakage is prevented. Meanwhile, the exhaust gas in the shell is pumped into the gas cylinder for temporary storage through the gas pumping and discharging assembly, so that the exhaust gas is prevented from being directly discharged into the external environment in the adsorption plate replacement process, and the operation safety is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter technology field especially relates to a lithium battery electrolyte safety filter device. BACKGROUND

[0002] Lithium battery electrolyte is one of the core components of lithium ion battery, and is called the "blood" of the battery. Its main function is to transfer lithium ions between the positive and negative electrodes while ensuring electronic insulation, thus enabling the normal charging and discharging process of the battery. The properties of the electrolyte directly affect the key indicators of the battery, such as energy density, cycle life, and safety performance.

[0003] Liquid electrolyte is the most common type, composed of lithium salt, organic solvent and additives, with high ionic conductivity.

[0004] Currently, during the charging and discharging process, the organic solvent and lithium salt in the electrolyte will undergo a chemical reaction, producing gas. Common gases include H2, CO2, CH4, and CO, etc. During actual operation, attention should be paid to the treatment and safety protection measures for these gases.

[0005] The prior art with publication number CN220609741U discloses a lithium battery electrolyte gas charging and discharging device, which includes a main structure assembly, a purification assembly, a storage tank, an exhaust pipe, a purification bin connected to the side wall of the exhaust pipe, an installation slot opened in the front side wall of the purification bin, an adsorption plate set inside the installation slot, a sealing plate connected to the front side wall of the adsorption plate, a placement slot opened on the upper surface of the purification bin, a rotary motor set on the upper surface of the placement slot, a rotary shaft connected to the lower surface of the rotary motor, and a rotary fan set on the outer surface of the rotary shaft.

[0006] The device can purify the discharged gas and ensure the safety of the exhaust.

[0007] During the replacement of the adsorption plate, due to the lack of a closing device in the exhaust pipe, when the adsorption plate is removed, the exhaust pipe is completely open to the outside space, causing the harmful gas discharged to be directly emitted into the air without any treatment. This design defect not only causes environmental pollution, but also poses a threat to the health and safety of the operator. Therefore, improvements are proposed. UTILITY MODEL CONTENTS

[0008] The utility model discloses a lithium battery electrolyte safety filter device to solve the shortcomings in the prior art.

[0009] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a lithium battery electrolyte safety filter device, comprising a storage tank, a fixed pipe is fixed through one side of the top of the storage tank, and an electric lifting piston is installed in the fixed pipe;

[0010] The gas outlet end of the fixed pipe is fixedly penetrated by a shell, and the top of the shell is sealingly plugged with an adsorption filter assembly;

[0011] One side outer wall of the shell is fixedly penetrated by a collecting pipe, the gas extraction end of the collecting pipe is fixedly penetrated by an exhaust gas extraction assembly, the gas outlet end of the exhaust gas extraction assembly is fixedly penetrated by a connecting pipe, and the connecting pipe is fixedly installed on the one side outer wall of the shell and fixedly penetrated by the shell;

[0012] The gas outlet end of the shell is fixedly penetrated by an exhaust pipe.

[0013] Further, the electric lifting piston comprises a first electric push rod, and the first electric push rod is fixedly installed at the top of the fixed pipe, the movable end of the first electric push rod extends to the inside through the top of the fixed pipe, and a first piston is fixedly connected to the movable end, and the first piston is sealingly attached to the inner wall of the fixed pipe, and when the first piston is at the gas inlet end of the fixed pipe, the purpose of closing the fixed pipe can be achieved.

[0014] Further, the adsorption filter assembly comprises a top cover, and the top cover is fixedly installed at the top of the shell by bolts, the bottom of the top cover is uniformly fixedly connected with a plurality of mounting frames, and the mounting frames are sealingly plugged with the shell, the inside of each of the mounting frames is fixedly connected with an adsorption plate, and the modular design facilitates the replacement of multiple adsorption plates at the same time.

[0015] Further, the plurality of adsorption plates and the mounting frames cooperate to divide the inside of the shell into a plurality of independent chambers, except for the single chamber located on one side of the exhaust pipe, the remaining chambers are all in communication with the collecting pipe.

[0016] Further, the exhaust gas extraction assembly comprises a gas cylinder, and the gas cylinder is fixedly installed at the top of the liquid storage tank, one end of the gas cylinder fixedly penetrated by a first electromagnetic valve and a second electromagnetic valve, and the other interface of the first electromagnetic valve fixedly penetrated by the connecting pipe, and the other interface of the second electromagnetic valve fixedly penetrated by the collecting pipe, the first electromagnetic valve can control whether the connecting pipe is in communication with the gas cylinder, and the second electromagnetic valve can control whether the collecting pipe is in communication with the gas cylinder.

[0017] Further, the other end of the gas cylinder is fixedly installed with a second electric push rod, the movable end of the second electric push rod extends to the inside through the outer wall of the gas cylinder, and a second piston is fixedly connected to the movable end, and the second piston is sealingly attached to the inner wall of the gas cylinder, a plurality of gas holes are formed in the gas cylinder at one end of the second electric push rod and penetrate into the inside, and the gas holes can reduce the moving resistance of the second piston.

[0018] Further, one side of the top of the liquid storage tank is fixedly penetrated by a gas supplement pipe, and the gas supplement pipe and the exhaust pipe cooperate to be used for supplementing and exhausting the lithium battery electrolyte.

[0019] The utility model discloses a beneficial effect:

[0020] The utility model discloses in using, this lithium cell electrolyte safety filter device, when replacing adsorption board, the device passes through electric lift piston and seals the air inlet end of fixed pipe, prevents waste gas leakage.

[0021] The utility model discloses in using, this lithium cell electrolyte safety filter device, after adsorption board replacement, the device passes through air cylinder and re -entering the waste gas of temporary storage in the shell and carries out secondary filtration, ensures that waste gas will not be directly discharged without treatment, further improve environmental protection performance. DRAWINGS

[0022] In order to more clearly illustrate the technical scheme of the utility model, the following will be to the specific implementation mode description needed to use the drawing briefly introduces, obviously, the following description in the drawing is only some embodiments of the utility model, for the person skilled in the art comes, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0023] Fig. 1 The utility model discloses a perspective view;

[0024] Fig. 2 The utility model discloses a top view;

[0025] Fig. 3 The utility model discloses a shell side view section view;

[0026] Fig. 4 The utility model discloses air cylinder internal structure partial display;

[0027] The drawing mark is as follows:

[0028] 1, liquid storage tank;2, air supplement pipe;3, second electric push rod;4, air hole;5, air cylinder;6, top cap;7, collecting pipe;8, exhaust pipe;9, second electromagnetic valve;10, first electric push rod;11, first electromagnetic valve;12, connecting pipe;13, shell;14, first piston;15, fixed pipe;16, mounting frame;17, adsorption board;18, second piston. Specific implementation mode

[0029] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0030] As shown in Figs. 1 to 4 The present application relates to a lithium battery electrolyte safety filtering device, which comprises a liquid storage tank 1, a fixed pipe 15 is fixedly penetrated through one side of the top of the liquid storage tank 1, an electric lifting piston is installed on the fixed pipe 15, the electric lifting piston comprises a first electric push rod 10, the first electric push rod 10 is fixedly installed on the top of the fixed pipe 15, the movable end of the first electric push rod 10 extends to the inside through the top of the fixed pipe 15, and a first piston 14 is fixedly connected to the movable end of the first electric push rod 10, the first piston 14 is sealingly attached to the inner wall of the fixed pipe 15, the first electric push rod 10 is fixedly installed on the top of the fixed pipe 15 by means of bolts, which facilitates disassembly and assembly, and a sealing sleeve is sealingly and slidably sleeved on the outer surface of the movable rod of the first electric push rod 10, the sealing sleeve is fixedly connected to the fixed pipe 15, and the sealing property of the connection between the movable end of the first electric push rod 10 and the fixed pipe 15 is ensured.

[0031] A housing 13 is fixedly penetrated through the gas outlet end of the fixed pipe 15, an adsorption and filtration assembly is sealingly inserted into the top of the housing 13, the adsorption and filtration assembly comprises a top cover 6, the top cover 6 is fixedly installed on the top of the housing 13 by means of bolts, a plurality of installation frames 16 are uniformly fixedly connected to the bottom of the top cover 6, the installation frames 16 are sealingly inserted between the housing 13, adsorption plates 17 are fixedly connected to the inside of the plurality of installation frames 16, the plurality of adsorption plates 17 and the installation frames 16 cooperate to divide the inside of the housing 13 into a plurality of independent chambers, except for a single chamber located on one side of the exhaust pipe 8, the remaining chambers are in communication with the collecting pipe 7, a plurality of insertion slots are formed in the top of the housing 13 and penetrate into the inside, the insertion slots are matched with the installation frames 16, which facilitates the insertion of the installation frames 16, and back-shaped sealing gaskets are fixedly installed on the outer walls of the two sides of the installation frames 16, the back-shaped sealing gaskets abut against the inner walls of the insertion slots, and the sealing property between the installation frames 16 and the housing 13 is ensured.

[0032] The side outer wall of the shell 13 is fixedly penetrated by a collecting pipe 7, the suction end of the collecting pipe 7 is fixedly penetrated by a gas suction and discharge assembly, the gas outlet end of the gas suction and discharge assembly is fixedly penetrated by a connecting pipe 12, the connecting pipe 12 is fixedly installed on the outer wall of the shell 13 on the side of the fixed pipe 15, and is fixedly penetrated by the shell 13, the gas suction and discharge assembly comprises a gas cylinder 5, the gas cylinder 5 is fixedly installed on the top of the liquid storage tank 1, the gas cylinder 5 is fixedly penetrated by a first electromagnetic valve 11 and a second electromagnetic valve 9 at one end of the collecting pipe 7, the other interface of the first electromagnetic valve 11 is fixedly penetrated by the connecting pipe 12, and the other interface of the second electromagnetic valve 9 is fixedly penetrated by the collecting pipe 7, the core working principle of the first electromagnetic valve 11 and the second electromagnetic valve 9 is based on electromagnetic induction phenomenon, the movement of the valve core is controlled through the magnetic field action of the electromagnet, so that the on-off of the fluid is realized, the other end of the gas cylinder 5 is fixedly installed with a second electric push rod 3, the second electric push rod 3 and the gas cylinder 5 are fixedly connected by bolts, which is convenient for disassembly and assembly, the movable end of the second electric push rod 3 extends to the inside through the outer wall of the gas cylinder 5, and is fixedly connected with a second piston 18, the second piston 18 is sealingly attached to the inner wall of the gas cylinder 5, the second piston 18 has the effects of gas suction or gas discharge when moving in the gas cylinder 5, a plurality of gas holes 4 are formed in the gas cylinder 5 at one end of the second electric push rod 3 and penetrate into the inside, the arrangement of the gas holes 4 can make the inside and outside of the shell 13 communicate, and the moving resistance of the second piston 18 is reduced.

[0033] The gas outlet end of the shell 13 is fixedly penetrated by an exhaust pipe 8.

[0034] The top of the liquid storage tank 1 is fixedly penetrated by a gas supplement pipe 2.

[0035] Working principle: in the daily exhaust process, the gas is discharged into the shell 13 through the fixed pipe 15, then filtered by the plurality of adsorption plates 17, and then discharged through the exhaust pipe 8 (if necessary, an existing fan can be installed at the gas outlet end of the exhaust pipe 8 to guide the flow);

[0036] When the plurality of adsorption plates 17 need to be replaced, the first electric push rod 10 operates, the first piston 14 is pushed down to close the air inlet end of the fixed pipe 15, then the second electromagnetic valve 9 is opened to communicate the manifold 7 with the air cylinder 5, then the second electric push rod 3 operates, the second electric push rod 3 drives the second piston 18 to move away from the manifold 7, the second piston 18 moves while cooperating with the air cylinder 5 to generate an air extraction effect, most of the exhaust gas produced in the shell 13 and the fixed pipe 15 is extracted into the air cylinder 5 through the manifold 7, then the second electromagnetic valve 9 is closed, then the bolts are unscrewed by external tools to release the fixation of the top cover 6 and the shell 13, then the plurality of mounting frames 16 are extracted through the top cover 6, so that the adsorption plates 17 are extracted, then the new adsorption plates 17 and the mounting frames 16 are inserted into the shell 13, then the top cover 6 is fixed by the external tools and the bolts, then the first electromagnetic valve 11 is opened to communicate the connecting pipe 12 with the air cylinder 5, the second electric push rod 3 drives the second piston 18 to reset and move, the second piston 18 pushes the exhaust gas extracted in the air cylinder 5 into the shell 13, after completion, the first electromagnetic valve 11 is closed, and the first electric push rod 10 operates to drive the first piston 14 to rise to open the fixed pipe 15.

[0037] It should be noted that in actual use, a prior art controller can be added, which is electrically connected between the first electric push rod 10, the second electric push rod 3, the first electromagnetic valve 11 and the second electromagnetic valve 9, so as to control the overall operation. The specific data analysis and processing related to the control function are methods that can be realized by those skilled in the art based on common knowledge, and these method contents are not within the scope of the present scheme. The above description only illustrates the beneficial effects that can be achieved by improving the hardware structure based on common knowledge.

[0038] The preferred embodiments disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details, nor limit the present application to the specific implementation. Obviously, many modifications and changes can be made according to the content of the present application. The present application selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can well understand and utilize the present application. The present application is limited by the claims and their entire scope and equivalents.

Claims

1. A lithium battery electrolyte safety filtering device, comprising a liquid storage tank (1), characterized in that: The top side of the liquid storage tank (1) is fixedly penetrated by a fixed pipe (15), and the fixed pipe (15) is provided with an electric lifting piston; The gas outlet end of the fixed pipe (15) is fixedly penetrated by a shell (13), and the top of the shell (13) is sealingly inserted with an adsorption filter assembly; One side outer wall of the shell (13) is fixedly penetrated by a collecting pipe (7), the gas suction end of the collecting pipe (7) is fixedly penetrated by a gas extraction assembly, the gas outlet end of the gas extraction assembly is fixedly penetrated by a connecting pipe (12), and the connecting pipe (12) is fixedly installed on the outer wall of the shell (13) on the side of the fixed pipe (15) and fixedly penetrated by the shell (13); The gas outlet end of the shell (13) is fixedly penetrated by an exhaust pipe (8).

2. The lithium battery electrolyte safety filtration device of claim 1, wherein: The electric lifting piston comprises a first electric push rod (10), and the first electric push rod (10) is fixedly installed on the top of the fixed pipe (15); the movable end of the first electric push rod (10) extends to the inside through the top of the fixed pipe (15) and is fixedly connected with a first piston (14); and the first piston (14) is sealingly attached to the inner wall of the fixed pipe (15).

3. The lithium battery electrolyte safety filtration device of claim 1, wherein: The adsorption filter assembly comprises a top cover (6), and the top cover (6) is fixedly installed on the top of the shell (13) by bolts; the bottom of the top cover (6) is uniformly fixedly connected with a plurality of mounting frames (16), and the mounting frames (16) are sealingly inserted with the shell (13); and the inside of each of the mounting frames (16) is fixedly connected with an adsorption plate (17).

4. The lithium battery electrolyte safety filtration device of claim 3, wherein: The plurality of adsorption plates (17) cooperate with the mounting frames (16) to divide the inside of the shell (13) into a plurality of independent chambers, except for a single chamber on the side of the exhaust pipe (8), and the remaining chambers are in communication with the collecting pipe (7).

5. The lithium battery electrolyte safety filtration device of claim 1, wherein: The gas extraction assembly comprises a gas cylinder (5), and the gas cylinder (5) is fixedly installed on the top of the liquid storage tank (1); one end of the gas cylinder (5) is fixedly penetrated by a first electromagnetic valve (11) and a second electromagnetic valve (9); the other interface of the first electromagnetic valve (11) is fixedly penetrated by the connecting pipe (12); and the other interface of the second electromagnetic valve (9) is fixedly penetrated by the collecting pipe (7).

6. The lithium battery electrolyte safety filtration device of claim 5, wherein: The other end of the gas cylinder (5) is fixedly installed with a second electric push rod (3); the movable end of the second electric push rod (3) extends to the inside through the outer wall of the gas cylinder (5) and is fixedly connected with a second piston (18); the second piston (18) is sealingly attached to the inner wall of the gas cylinder (5); and a plurality of gas holes (4) are formed in the gas cylinder (5) on the end of the second electric push rod (3) and penetrate to the inside.

7. The lithium battery electrolyte safety filtration device of claim 1, wherein: The top side of the liquid storage tank (1) is fixedly penetrated by a gas supplement pipe (2).

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