A device for recovering electrolyte from a pipe

Abstract

The utility model discloses an electrolyte's device in recovery pipeline field of electrolyte recovery technology, including the recovery pipeline for conveying electrolyte, and the pipe cleaner that can move in recovery pipeline, be equipped with the ball sender for sending pipe cleaner and the ball receiver for receiving pipe cleaner in recovery pipeline to and be equipped with the drive assembly for promoting pipe cleaner along recovery pipeline movement, the utility model solves the problem of residual liquid accumulation and pipe wall pollution that electrolyte conveying pipeline exists for a long time, and the device introduces the movable pipe cleaner in the pipeline system, under the promotion of nitrogen, and pipe cleaner can effectively promote the residual electrolyte in the pipeline to the recovery system, realizes the efficient recycling of electrolyte, reduces the resource waste, improves production efficiency, compared with traditional static pipeline cleaning mode, greatly promotes the pipeline cleaning efficiency and electrolyte recovery rate, reduces the risk of toxic and harmful medium leakage, energy -conserving environmental protection.

Description

Technical Field

[0001] This utility model relates to a device for recovering electrolyte in pipelines, belonging to the field of electrolyte recovery technology. Background Technology

[0002] In the industrial process of lithium battery manufacturing, electrolyte is a crucial medium. Between each batch of battery production, a certain amount of electrolyte often remains in the piping system before the electrolyte injection system. If this electrolyte cannot be effectively recovered, it will not only waste resources but also increase production costs and even pollute the environment. Therefore, developing a device that can effectively recover electrolyte from the piping system has significant practical value. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device for recovering electrolyte in pipelines, which aims to solve the problem of electrolyte residue in pipeline systems, reduce production costs, and protect the environment.

[0004] To achieve the above objectives, this utility model employs the following technical solution: An apparatus for recovering electrolyte in a pipeline includes a recovery pipeline for conveying the electrolyte and a pig capable of moving within the recovery pipeline; the recovery pipeline is provided with a pig launcher for sending the pig and a pig receiver for receiving the pig, as well as a drive assembly for propelling the pig along the recovery pipeline.

[0005] In the above technical solution, the physical cleaning of the electrolyte recovery process is achieved through the mechanical movement of the pig in the pipeline, which effectively removes the deposits and residual liquid on the pipe wall and has higher cleaning efficiency than the traditional flushing method. The collaborative design of the drive component and the pig launcher and receiver forms a closed-loop recovery system, which can not only ensure the directional delivery of electrolyte but also realize the recycling of the pig, significantly improving the automation level of pipeline maintenance.

[0006] Furthermore, the ball launcher is located on the recovery pipe near the electrolyte output device, and the ball receiver is located on the recovery pipe near the electrolyte collection device.

[0007] In the above technical solution, the ball launcher and ball receiver are respectively configured at the electrolyte delivery end and the collection end, which can form a unidirectional pigging path that conforms to the hydrodynamic characteristics. This can effectively avoid cross-contamination caused by electrolyte backflow, improve pigging efficiency, and reduce equipment energy consumption, making it particularly suitable for long-distance pipeline systems.

[0008] Furthermore, both the launcher and the receiver include a full-bore valve body, with a pig inlet and outlet on the side of the valve body; the launcher has a grid plate on the reverse side of the end from which the pig is launched, and the receiver has a grid plate on the reverse side of the end from which the pig is received.

[0009] In the above technical solution, the pig launcher is responsible for sending the pig into the recovery pipeline, while the pig receiver is used to receive the pig after it has completed its task; the full-bore valve body design maintains the consistency of the pipeline inner diameter, eliminates electrolyte turbulence and residue caused by the diameter change section, and improves the smoothness of the pig's passage; the grid plate prevents the pig from continuing to move, which can both ensure the accurate positioning of the pig and prevent electrolyte backflow.

[0010] Furthermore, the recovery pipeline is also equipped with an electrolyte valve assembly for switching the pipeline on and off, which is connected to the electrolyte output device and the electrolyte collection device respectively; depending on actual needs, the electrolyte valve assembly can be a valve assembly with safety shut-off, check valve, pressure detection and temperature detection functions.

[0011] In the above technical solution, the electrolyte valve assembly can quickly cut off the recovery pipeline and has a check function, which can effectively prevent electrolyte backflow; the integrated multi-functional valve assembly realizes three-in-one safety monitoring of pressure, temperature and flow direction, and can also prevent accidents such as pipeline rupture.

[0012] Furthermore, the driving component is a nitrogen valve assembly, which is located on the side of the ball launcher near the electrolyte output device and on the side of the ball receiver near the electrolyte collection device. Depending on actual needs, the nitrogen valve assembly can be a valve assembly with safety shut-off, check valve, pressure regulation and pressure detection functions.

[0013] In the above technical solution, the use of nitrogen valve group to drive the pig to move along the recovery pipeline avoids the risk of oxidation reaction and has good compression performance, which is particularly suitable for handling flammable and explosive electrolytes; the linkage design of pressure regulation and safety cut-off ensures that the pig moves at a constant speed and prevents the unblocking failure caused by sudden pressure changes, while the chemical inertness of nitrogen ensures the stability of electrolyte composition.

[0014] Furthermore, both the outlet end of the ball launcher and the inlet end of the ball receiver are equipped with ball passage indicators for indicating whether the pig leaves the ball launcher or enters the ball receiver; the ball passage indicator is a mechanical ball passage indicator or a magnetic ball passage indicator.

[0015] In the above technical solutions, the pigging indicators at both ends form a full-area monitoring of the pigging process, providing real-time feedback on the pig's operating status to help accurately determine the location of pipeline blockages and record data; the mechanical pigging indicator is equipped with a mechanical impact rod that extends into the recovery pipeline, which can be triggered when any type of pig passes through, transmitting the pig's passage status; the magnetic pigging indicator is suitable for pigs with magnetic force, and can record the pig's passage status when the pig passes through.

[0016] Furthermore, the pig includes a flexible frame and pig heads connected to both ends of the flexible frame. The pig heads are concave or convex disc-shaped. The flexible frame embeds a magnetic sensor and a position chip. It is made of a pollution-free, wear-resistant flexible material (such as PTFE).

[0017] In the above technical solution, the flexible skeleton design enables the pig to adapt to pipeline deformation, and the disc-shaped pig head forms a two-way sealing structure while reducing movement resistance; the embedded integration of the magnetic sensor and the positioning chip enables the visualization and monitoring of the pig's movement trajectory, providing dynamic data support for pipeline health assessment, without affecting the mechanical strength of the pig.

[0018] Furthermore, the joints of the recycling pipes use long-radius elbows with a bending radius of 2D to 5D, where D is the pipe radius.

[0019] In the above technical solution, the long radius elbow can adapt to different pigs, making it easier for the pig to pass through smoothly and reducing pipe wall wear; it can also effectively prevent electrolyte deposition.

[0020] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: The device for recovering electrolyte in pipelines provided by this utility model solves the long-standing problems of residual liquid accumulation and pipe wall contamination in electrolyte transportation pipelines. By introducing a movable pig into the pipeline system, the pig can effectively push the residual electrolyte in the pipeline to the recovery system under the impetus of nitrogen, realizing the efficient recycling of electrolyte, reducing resource waste, and improving production efficiency. Compared with traditional static pipeline cleaning methods, it greatly improves pipeline cleaning efficiency and electrolyte recovery rate, reduces the risk of leakage of toxic and harmful media, and is energy-saving and environmentally friendly. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a device for recovering electrolyte in a pipeline, provided in an embodiment. Figure 2 This is a schematic diagram of the ball-serving device described in the embodiment; Figure 3 This is an isometric view of the pig described in Example 1; Figure 4 This is a cross-sectional view of the pig described in Example 2.

[0022] In the diagram: 1-Electrolyte storage tank; 2-Electrolyte valve assembly; 3-Nitrogen valve assembly; 4-Pig launcher; 41-Valve body; 42-Pig inlet and outlet; 5-Pig passage indicator; 6-Recovery pipeline; 7-Pig receiver; 8-Electrolyte collector; 9-Pig; 91-Pig head; 92-Flexible frame; 93-Inner tank. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be construed as limiting the scope of protection of the present invention.

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example 1: like Figure 1 As shown, this embodiment provides a device for recovering electrolyte in a pipeline, including a recovery pipeline 6 for conveying electrolyte. One end of the recovery pipeline 6 is connected to an electrolyte storage tank 1 (electrolyte output device), and the other end is connected to an electrolyte collector 9 (electrolyte collection device). An electrolyte valve group 2, a nitrogen valve group 3, a ball launcher 4, a ball passing indicator 5, a ball collector 7, a nitrogen valve group 3, and an electrolyte valve group 2 are sequentially arranged on the recovery pipeline from the electrolyte storage tank 1 to the electrolyte collector 9.

[0027] In this embodiment, the electrolyte valve group 2 is connected to the electrolyte storage tank 1 and the electrolyte collection tank 2 respectively, and is used to switch the main recovery pipeline 6 on and off. In some specific applications, depending on the requirements, it can have functions such as safety cut-off, check valve, pressure detection and temperature detection, which can effectively prevent electrolyte backflow and improve safety.

[0028] In this embodiment, the ball launcher 4 and the ball receiver 7 are used to send and receive the pig 9, which can move within the recovery pipe 6; as Figure 2 As shown, the ball launcher 4 includes a full-bore valve body 41, with a pig inlet / outlet 42 on the side of the valve body 41, and a grid plate on the reverse end of the valve body 41 at the end that launches the pig 9; the ball receiver 7 has a similar structure to the ball launcher 4, except that the grid plate of the ball receiver 7 is located on the reverse end of the valve body 41 at the end that receives the pig 9.

[0029] In this embodiment, the nitrogen valve group 3 is located before the ball launcher 4 and after the ball receiver 7, and is used to push the pig 9 to move along the recovery pipeline 6. In some specific applications, depending on the requirements, it can have functions such as safety shut-off, check valve, pressure regulation, and pressure detection to improve safety.

[0030] The pig passage indicator 5 is used to indicate whether the pig 9 leaves the pig launcher 4 or enters the pig receiver 7. In this embodiment, a mechanical pig passage indicator is used, which is equipped with a mechanical impact rod that extends into the recovery pipe 6. When the pig passes through, it can trigger the mechanical impact rod to transmit the passage status of the pig 9.

[0031] The pig 9 is used to propel the electrolyte in the recovery pipeline 6 in the desired direction. In this embodiment, the pig 9 is made of non-polluting, wear-resistant flexible material PTFE, such as... Figure 3 As shown, it includes a flexible skeleton 92 and a cleaning head 91 connected to both ends of the flexible skeleton 92. The cleaning head 91 is a convex disc shape.

[0032] In this embodiment, the joint of the recovery pipe 6 uses a long-radius elbow with a bending radius of 5D, where D is the pipe radius. The long-radius elbow can accommodate different pigs, facilitating smooth passage of the pig and reducing pipe wall wear; it also effectively prevents electrolyte deposition.

[0033] Working principle: When it is necessary to recover the electrolyte remaining in the recovery pipeline 6, firstly, disconnect the connection with the electrolyte supply system, close the pig launcher 4, and at this time, the pipe diameter of the pig launcher 4 faces the side. Open the side pig inlet / outlet 42, insert the pig 9, close the side pig inlet / outlet 42, and turn the pig launcher 4 to the open position; open the nitrogen valve group 3 on the left, and the nitrogen will push the pig 9 along the recovery pipeline 6. It will move close to the inner wall of the recovery pipeline 6, pushing the electrolyte forward; the pig 9 passes the pig passage indicator 5. When the indicator is activated, the mechanical strike bar will trigger an indicator signal, marking the passage of the pig 9. When the pig 9 reaches the ball receiver 7, the electrolyte has been completely pushed into the electrolyte collector 9. At the same time, the grid in the ball receiver 7 will prevent the pig from moving further and close the nitrogen valve group 3 on the left. At this time, the pig can be taken out from the ball receiver 7, thus completing the electrolyte recovery. Alternatively, the nitrogen valve group 8 on the right can be opened, and the pig 9 will return to the ball launcher 4 along the recovery pipeline 6, pushing the electrolyte in the recovery pipeline 6 back to the supply end, thus also realizing the recovery of electrolyte.

[0034] Example 2: This embodiment provides a device for recovering electrolyte from a pipeline. Based on Embodiment 1, some components are modified or replaced, as follows: In this embodiment, the pig passage indicator 5 is a magnetic pig passage indicator, which is suitable for the pig 9 with magnetic force. When the pig 9 passes through, the passage status of the pig 9 can be recorded.

[0035] In this embodiment, the joint of the recycling pipe 6 adopts a long radius elbow with a bending radius of 2D, where D is the pipe radius.

[0036] In this embodiment, the pig 9 is as follows: Figure 4 As shown, its cleaning head 91 is a concave disc shape, and its flexible skeleton 92 has an inner groove 93. The inner groove 93 contains magnetic sensors and position chips, which can realize the visual monitoring of the cleaning machine's movement trajectory.

[0037] The other structures and working processes in this embodiment are the same as in Embodiment 1. For details not described in this embodiment, please refer to Embodiment 1, and they will not be repeated here.

[0038] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A device for recovering electrolyte from a pipeline, characterized in that, This includes recovery pipelines for conveying electrolyte and pigs capable of moving within the recovery pipelines; The recovery pipeline is equipped with a pig launcher for sending out pigs and a pig receiver for receiving pigs, as well as a drive assembly for moving the pigs along the recovery pipeline. Both the launcher and the receiver include a full-bore valve body, and the side of the valve body is provided with a pig inlet and outlet; the launcher is provided with a grid plate at the reverse end of the valve body where the pig is launched, and the receiver is provided with a grid plate at the reverse end of the valve body where the pig is received. The driving component is a nitrogen valve group, which is located on the side of the ball launcher near the electrolyte output device and on the side of the ball receiver near the electrolyte collection device. The pigging device includes a flexible frame and pigging heads connected to both ends of the flexible frame. The pigging heads are concave or convex disc-shaped. The flexible frame has embedded magnetic sensors and position chips.

2. The apparatus for recovering electrolyte in a pipeline according to claim 1, characterized in that, The ball launcher is located on the recovery pipe near the electrolyte output device, and the ball receiver is located on the recovery pipe near the electrolyte collection device.

3. The apparatus for recovering electrolyte in a pipeline according to claim 1, characterized in that, The recovery pipeline is also equipped with an electrolyte valve group for switching the pipeline on and off, which is connected to the electrolyte output device and the electrolyte collection device respectively.

4. The apparatus for recovering electrolyte in a pipeline according to claim 1, characterized in that, Both the outlet end of the ball launcher and the inlet end of the ball receiver are equipped with ball-passing indicators to indicate whether the pig leaves the ball launcher or enters the ball receiver; the ball-passing indicators are mechanical ball-passing indicators or magnetic ball-passing indicators.

5. The apparatus for recovering electrolyte in a pipeline according to claim 1, characterized in that, The joints of the recycling pipeline use long-radius elbows with a bending radius of 2D to 5D, where D is the pipeline radius.

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