Battery formation pipeline cleaning device

Abstract

The utility model discloses a battery formation pipeline cleaning device which comprises a tool, the tool comprises a frame, a connecting pipe used for being connected with a cleaning fluid supply system is arranged on one side of the frame, at least one cleaning tank is installed in the frame, a plurality of suction nozzle pressing heads are arranged on the top surface of the frame, and the suction nozzle pressing heads are connected with the cleaning fluid supply system. The suction nozzle pressing head is connected with the cleaning tank through a connecting pipe, and the cleaning tank is connected with the connecting pipe. According to the battery formation pipeline cleaning device, the plurality of suction nozzle pressure heads are arranged, the suction nozzle pressure heads are connected with the cleaning tank in the frame through the connecting pipe, the cleaning tank is connected with the connecting pipe, so that the cleaning agent is introduced, and after the plurality of suction nozzle pressure heads are aligned and connected with the suction nozzles on the formation equipment, the cleaning agent can be cleaned. The formation pipeline of the formation equipment can be effectively cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of battery formation negative pressure pipeline cleaning, in particular to a battery formation pipeline cleaning device. Background Art

[0002] The cell formation process is an important step in the production of lithium batteries, and its purpose is to activate the battery. The formation is usually carried out in a negative pressure formation device. When the battery is formed, gas will be generated inside, and the formation equipment will extract the gas by pumping negative pressure. As the gas is discharged, part of the electrolyte in the battery also enters the negative pressure pipeline of the formation equipment. After many times, crystals are formed in the pipeline, blocking the pipeline and affecting the quality of the battery. For this reason, the negative pressure pipeline in the formation equipment needs to be cleaned regularly with a cleaning agent. However, the internal space of the formation equipment is limited. When cleaning the negative pressure pipeline, the formation equipment must be partially disassembled and cleaned manually, which is inefficient. In addition, the manual participation process is complicated, and the pipeline needs to be repeatedly connected, which is prone to errors and has low reliability. Not only that, the pipeline disassembly process also involves high-altitude operations, which poses a safety hazard.

[0003] CN2022102263383 discloses a cleaning system for a negative pressure pipeline of a lithium battery, including a positive pressure cleaning passage, including a first pair of interfaces, a pneumatic adjustment member, a positive pressure solenoid valve, a solvent container, an inlet and outlet liquid solenoid valve, and a third pair of interfaces connected in sequence through a pipeline; a negative pressure liquid extraction passage, including a second pair of interfaces and a negative pressure solenoid valve connected in sequence through a pipeline; and a sewage discharge gas passage, including a first air pipe, an air blowing solenoid valve, and a second air pipe connected in sequence, the air inlet end of the first air pipe is connected to the pneumatic adjustment member and the positive pressure solenoid valve, and the air outlet end of the second air pipe is connected to the inlet and outlet liquid solenoid valve and the third pair of interfaces. The method of use includes the following steps: using a positive pressure path to perform positive pressure cleaning on the negative pressure pipeline of the equipment to be cleaned; using a negative pressure path to perform negative pressure liquid extraction on the negative pressure pipeline; using an air path to remove residual substances in the negative pressure pipeline. In the above-mentioned technology, there are still certain problems in the cleaning of the negative pressure formation pipeline: first, the supporting pipeline of the technology does not have a pressurization speed-increasing function, and the efficiency is relatively low. Secondly, the valve used in this technology is a solenoid valve, which is prone to leakage and damage under repeated flushing of electrolyte. Utility Model Content

[0004] The utility model aims to overcome the shortcomings and defects of the prior art and to provide a battery formation pipeline cleaning device which has a simple structure and is convenient to operate.

[0005] A battery formation pipeline cleaning device comprises a tool, wherein the tool comprises a frame, a connecting pipe for connecting to a cleaning liquid supply system is arranged on one side of the frame, at least one cleaning tank is installed inside the frame, a plurality of suction nozzles are arranged on the top surface of the frame, the suction nozzles are connected to the cleaning tank via a connecting pipe, and the cleaning tank is connected to the connecting pipe.

[0006] Wherein, the frame is a rectangular frame.

[0007] The cleaning liquid supply system includes a cleaning agent container and a pressurized delivery pipeline for pressurizing the cleaning agent and delivering it to the connecting pipe.

[0008] Among them, the pressurized delivery pipeline includes a compressed air main pipeline and a cleaning agent pipeline, the compressed air main pipeline forms two branches downstream, the first branch is arranged with a fourth normally open air-controlled valve and is connected to the air inlet of the cleaning agent container, and the second branch is connected to a normally closed air-controlled valve, the cleaning agent pipeline includes a liquid outlet pipeline, the liquid outlet pipeline is connected to the liquid pipe connected to the connecting pipe through the first normally open air-controlled valve, and the air outlet side of the normally closed air-controlled valve is connected to the liquid outlet pipe section of the liquid outlet side of the first normally open air-controlled valve.

[0009] The second branch of the compressed air main line is connected to the air inlet of the boost button valve through a branch line, and the air outlet of the boost button valve is connected to the normally closed air control valve through an air path.

[0010] Wherein, an air pressure regulating valve is arranged on the compressed air main line.

[0011] Among them, the battery formation pipeline cleaning device is provided with a vacuum pipeline, the vacuum pipeline is connected to the first branch through a third normally open air-controlled valve, and a vacuum air-pressure valve is also provided on the vacuum pipeline; the cleaning agent pipeline includes a liquid return pipeline, and the liquid return pipeline is connected to the liquid pipe through a second normally open air-controlled valve.

[0012] Among them, the battery formation pipeline cleaning device includes a compressed air control pipeline, and each branch control pipeline of the compressed air control pipeline is connected to the first air control valve, the second air control valve, the third air control valve and the fourth air control valve, and is used to control the opening or closing of the first air control valve, the second air control valve, the third air control valve and the fourth air control valve by passing or shutting off the compressed air.

[0013] Wherein, a manual valve is provided on the compressed air control pipeline for controlling the opening or closing of the first air control valve, the second air control valve, the third air control valve and the fourth air control valve to control the entry or shutoff of compressed air.

[0014] The compressed air control pipeline is connected to the main pipe section before the compressed air main pipe forms two branches.

[0015] The battery formation pipeline cleaning device of the utility model is provided with a plurality of suction nozzle pressure heads, the suction nozzle pressure heads are connected to the cleaning tank in the frame through a connecting pipe, the cleaning tank is connected to the connecting pipe to introduce a cleaning agent, and after the plurality of suction nozzle pressure heads are aligned with and connected to the suction nozzles on the formation equipment, the formation pipeline of the formation equipment can be effectively cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of the battery formation pipeline cleaning device of the utility model.

[0017] Figure 2 The utility model is a schematic diagram of the flow of cleaning agent when the battery formation pipeline cleaning device is working under positive pressure.

[0018] Figure 3 The figure is a schematic diagram of the mixed liquid flow when the battery formation pipeline cleaning device of the utility model works under negative pressure.

[0019] Figure 4 The utility model is an axonometric view of the tooling of the battery formation pipeline cleaning device.

[0020] Figure 5 The utility model is a cross-sectional view of the tooling of the battery formation pipeline cleaning device.

[0021] Figure 6 The utility model is a top view of the tooling of the battery formation pipeline cleaning device.

[0022] Figure 7 The utility model is a front view of the tooling of the battery formation pipeline cleaning device.

[0023] Figure 8 The utility model is a schematic diagram of the combination of the suction nozzle pressure head and the suction nozzle of the battery formation pipeline cleaning device.

[0024] Fig. 9 The utility model is a schematic diagram of the connection operation between the suction nozzle pressure head and the suction nozzle of the battery formation pipeline cleaning device. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] like Figures 1 to 9As shown, a battery formation pipeline cleaning device according to an embodiment of the utility model includes a tool 11, which includes a frame 111, a connecting pipe 113 for connecting to a cleaning liquid supply system is arranged on one side of the frame, at least one cleaning tank 115 is installed inside the frame, and a plurality of suction nozzle pressure heads 112 are arranged on the top surface of the frame, the suction nozzle pressure heads 112 are connected to the cleaning tank 115 via a connecting pipe 114, and the cleaning tank 115 is connected to the connecting pipe 113.

[0027] In the above-mentioned embodiment, the nozzle pressure head 112 is used to connect and press the nozzle 100 on the negative pressure forming device, and the frame 112 is used to press ... 1 The connecting pipe 113 is used to connect to the cleaning agent source through a pipeline. The connecting pipe 114 connecting the nozzle head 112 and the cleaning tank 115 is preferably a hose, which connects the nozzle head 112 and the cleaning tank 115 together so that the cleaning agent can enter the nozzle head 112 from the cleaning agent source. The cleaning tank is used to temporarily store the cleaning agent and\or the mixture of electrolyte and cleaning agent.

[0028] In one embodiment, the nozzle pressure head 112 can be set to a structure that can be raised and lowered by a cylinder. After the nozzle pressure head of the cleaning tool is aligned with the nozzle on the formation device, the nozzle pressure head can be raised under the action of the cylinder, so that the nozzle on the formation device is tightly combined with the nozzle pressure head, and no leakage occurs. Of course, other methods or structures can also be used to make the nozzle on the formation device tightly combined with the nozzle pressure head, not limited to structures such as cylinders.

[0029] Preferably, the frame 111 is a rectangular frame, but it may be other shapes, and is not limited thereto.

[0030] In one embodiment, the cleaning liquid supply system includes a cleaning agent container 10 and a pressurized delivery pipeline that pressurizes the cleaning agent and delivers it to the connecting pipe. Through the pressurized delivery pipeline, the cleaning agent enters the nozzle pressure head 112 from the cleaning agent container 10 and then enters the nozzle to clean the pipeline of the chemical formation equipment.

[0031] In a preferred embodiment, the pressurized delivery pipeline includes a compressed air main pipeline and a cleaning agent pipeline. The compressed air main pipeline forms two branches downstream. The first branch 20 is provided with a fourth normally open air-controlled valve 4 and is connected to the air inlet of the cleaning agent container 10. The second branch 21 is connected to a normally closed air-controlled valve 5. The cleaning agent pipeline includes a liquid outlet pipeline 40. The liquid outlet pipeline is connected to a liquid pipe 50 connected to the connecting pipe through a first normally open air-controlled valve 1. The air outlet side of the normally closed air-controlled valve 5 is connected to the liquid outlet pipe section of the liquid outlet side of the first normally open air-controlled valve 1. See Figure 1 shown.

[0032] Among them, the second branch 21 of the compressed air main line is connected to an inlet of a boost button valve 9 through a branch road, the air outlet of the boost button valve is connected to the air inlet side of the normally closed air control valve 5 through a control air circuit, and the boost button of the boost button valve can open the normally closed air control valve 5 when manually pressed.

[0033] Wherein, an air pressure regulating valve 6 is provided on the compressed air main line, and the air pressure regulating valve is connected to the air to control the entry of compressed air and adjust the entry rate of compressed air.

[0034] Furthermore, the battery formation pipeline cleaning device is also provided with a vacuum pipeline 30, which is connected to the first branch 20 through a third normally open gas-controlled valve 3, and a vacuum pressure-reducing valve 7 is also provided on the vacuum pipeline; the cleaning agent pipeline includes a liquid return pipeline 41, which is connected to the liquid pipe 50 through a second normally open gas-controlled valve 2. The vacuum pressure-reducing valve 7 is used to connect to the vacuum pump station, and can be vacuumed after opening. Through the vacuum pipeline, after positive pressure cleaning, the mixed liquid of the cleaning agent and the electrolyte can be pumped back to the cleaning agent container 10 by negative pressure for storage.

[0035] Furthermore, the battery formation pipeline cleaning device includes a compressed air control pipeline, and each branch control pipeline of the compressed air control pipeline is connected to the first air control valve, the second air control valve, the third air control valve and the fourth air control valve, and is used to control the opening or closing of the first air control valve, the second air control valve, the third air control valve and the fourth air control valve by passing or shutting off the compressed air.

[0036] Wherein, a manual valve 8 is provided on the compressed air control pipeline, which is used to control the opening or closing of the first air-controlled valve, the second air-controlled valve, the third air-controlled valve and the fourth air-controlled valve, and control the entry or shutoff of compressed air. The manual valve 8 has three gears, the middle gear is the normal gear when idle and not in use, and can be manually moved to the negative pressure gear and the positive pressure gear. When the manual valve 8 is moved to the positive pressure gear, the second normally open air-controlled valve 2 and the third normally open air-controlled valve 3 will be closed. When it is moved to the negative pressure gear, the first normally open air-controlled valve 1 and the fourth normally open air-controlled valve 4 will be closed.

[0037] Among them, the compressed air control pipeline is connected to the main section 23 before the compressed air main pipeline forms two branches to introduce the required compressed air, so as to control the closing or opening of the first air-controlled valve, the second air-controlled valve, the third air-controlled valve and the fourth air-controlled valve through the introduced compressed air.

[0038] It should be noted that in this application, the connecting pipes used can be made of materials resistant to electrolyte corrosion to extend the service life, and the type can be selected according to the flow rate and flow velocity. If some stubborn electrolyte crystals need to be cleaned, an insulated pipe can be used, the cleaning agent container can be a container with a heating function, and the heated cleaning agent can be provided. The gas-controlled valve used can be a corresponding insulated gas-controlled valve.

[0039] Below, with Figure 1 The implementation process of the complete gas-controlled chemical formation pipeline cleaning device shown is described as follows:

[0040] Step 1: Align the nozzle pressure head of the cleaning tool with the nozzle on the formation equipment and press it tightly to ensure that there is no leakage. Connect the connecting pipe on the cleaning tool tightly with the second normally open air control valve through a liquid pipe, and connect another pipe on the second normally open air control valve to the cleaning agent container; connect the pressure regulating valve to the compressed air source, and connect the vacuum pressure regulating valve to the vacuum pump to complete the pipeline connection work.

[0041] Step 2: Use the positive pressure path to perform positive pressure cleaning on the pipelines of the equipment to be cleaned.

[0042] The manual valve is turned to the positive pressure position, and the third normally open air control valve 3 and the second normally open air control valve 2 are cut off. Compressed air enters from the pressure regulating valve, passes through the fourth normally open air control valve 4 and enters the cleaning agent container 10, and presses out the cleaning agent in the cleaning agent container 10. The cleaning agent enters the tooling through the first normally open air control valve 1, and flows through the connecting pipe 113, the cleaning tank 115, the suction nozzle pressure head 112 and the hose 114 of the cleaning tank 115, the suction nozzle pressure head 112 in sequence, and finally enters the pipeline to be cleaned through the suction nozzle 100.

[0043] Step 3: During the cleaning process of step 2, press the boost button of the boost button valve, and the normally closed air control valve 5 is opened. At this time, the fourth normally open air control valve 4 and the normally closed air control valve 5 are both in the open state, and the double flow channel increases the air flow rate and pressure, so that the cleaning agent enters the formation equipment pipeline faster, improving the cleaning efficiency and cleaning more thoroughly.

[0044] Step 4: Use negative pressure path cleaning agent to perform negative pressure extraction.

[0045] The manual valve is turned to the negative pressure position, and the fourth normally open air control valve 4 and the first normally open air control valve 1 are cut off. The normally closed air control valve 5 is in a cut-off state (the negative pressure state does not involve the acceleration stage). The vacuum pump is in an open state at this time, and the negative pressure causes the cleaning agent mixture in the formation equipment to pass through the suction nozzle 100, the suction nozzle pressure head 112, the connection pipe 114 between the suction nozzle pressure head and the cleaning tank, the cleaning tank 115, and the connecting pipe 113 in sequence, and finally enter the cleaning agent container 10.

[0046] Steps 2 to 4 can be repeated until the electrolyte in the pipeline is cleaned.

[0047] Step 5: After cleaning is completed, separate the nozzle pressure head 112 from the nozzle 100; separate the pipeline to complete the disassembly.

[0048] The complete gas-controlled formation pipeline cleaning device of the utility model is equipped with a boost button valve for pressure adjustment; at the same time, it has a pressurization speed increasing function, which can effectively increase the cleaning efficiency; the principle is simple, the layout is reasonable, the operation is convenient, and the effect is remarkable. It can effectively clear and clean the formation negative pressure pipeline blocked by electrolyte crystallization without disassembling the negative pressure module, thus saving manpower and improving work efficiency.

[0049] The complete gas-controlled chemical formation pipeline cleaning device of the utility model uses a full gas-controlled valve pipeline. The entire pipeline adopts a gas-controlled valve, which does not affect the circulation of the electrolyte and is not easy to be damaged. It has a long service life and is a pressurized and adjustable gas-controlled chemical formation pipeline cleaning system. It uses compressed air as a power source, is simple to operate, responds quickly, has strong safety, is less affected by electrolyte corrosion, and has a long service life.

[0050] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model.

[0051] Therefore, no matter from which point of view, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0052] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Battery formation pipeline cleaning device, characterized in that: The utility model comprises a tool, which comprises a frame, a connecting pipe for connecting to a cleaning liquid supply system is arranged on one side of the frame, at least one cleaning tank is installed inside the frame, a plurality of suction nozzles are arranged on the top surface of the frame, the suction nozzles are connected to the cleaning tank via a connecting pipe, and the cleaning tank is connected to the connecting pipe.

2. The battery formation pipeline cleaning device according to claim 1, characterized in that: The frame is a rectangular frame.

3. The battery formation pipeline cleaning device according to claim 1, characterized in that: The cleaning liquid supply system comprises a cleaning agent container and a pressurized delivery pipeline for pressurizing the cleaning agent and delivering it to the connecting pipe.

4. The battery formation pipeline cleaning device according to claim 3 is characterized in that: The pressurized delivery pipeline includes a compressed air main pipeline and a cleaning agent pipeline. The compressed air main pipeline forms two branches downstream. The first branch is arranged with a fourth normally open air-controlled valve and is connected to the air inlet of the cleaning agent container. The second branch is connected to a normally closed air-controlled valve. The cleaning agent pipeline includes a liquid outlet pipeline. The liquid outlet pipeline is connected to the liquid pipe connected to the connecting pipe through the first normally open air-controlled valve. The air outlet side of the normally closed air-controlled valve is connected to the liquid outlet pipe section of the liquid outlet side of the first normally open air-controlled valve.

5. The battery formation pipeline cleaning device according to claim 4, characterized in that: The second branch of the compressed air main line is connected to the air inlet of the boost button valve through a branch line, and the air outlet of the boost button valve is connected to the normally closed air control valve through an air path.

6. The battery formation pipeline cleaning device according to claim 4, characterized in that: An air pressure regulating valve is arranged on the compressed air main line.

7. The battery formation pipeline cleaning device according to claim 5, characterized in that: A vacuum pipeline is provided, which is connected to the first branch through a third normally open air-controlled valve, and a vacuum air-pressure valve is also provided on the vacuum pipeline; the cleaning agent pipeline includes a liquid return pipeline, which is connected to the liquid pipe through a second normally open air-controlled valve.

8. The battery formation pipeline cleaning device according to claim 7, characterized in that: It includes a compressed air control pipeline, each branch control pipeline of which is connected to the first air control valve, the second air control valve, the third air control valve and the fourth air control valve, and is used to control the opening or closing of the first air control valve, the second air control valve, the third air control valve and the fourth air control valve by passing or shutting off the compressed air.

9. The battery formation pipeline cleaning device according to claim 8, characterized in that: The compressed air control pipeline is provided with a manual valve for controlling the opening or closing of the first air control valve, the second air control valve, the third air control valve and the fourth air control valve to control the introduction or closing of compressed air.

10. The battery formation pipeline cleaning device according to claim 8, characterized in that: The compressed air control pipeline is connected to the main pipe section of the compressed air main pipe before forming two branches.

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