A kind of unloading end for electrolyte automatic unloading

Abstract

The utility model discloses a kind of for electrolyte automatic unloading with unloading car end, including conveying pipe, valve and joint pipe, conveying pipe is equipped with purging interface near valve, the pipe wall of joint pipe is equipped with two quick couplings, purging interface and purging interface are connected with same through three-way valve, three-way valve is connected with nitrogen source, conveying pipe end inner wall is embedded with oxygen sensor, joint pipe inner wall is equipped with humidity sensor, oxygen sensor and humidity sensor are all connected to DCS control system, by purging interface in conveying pipe additional, with joint pipe quick coupling linkage, effectively expand nitrogen purging range, cover full pipeline corner. Through oxygen / humidity sensor feedback data, so that nitrogen flow and purging direction can be intelligently detected and controlled. By adopting double-channel quick coupling, heating module and reverse purging branch, effectively improve system reliability.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, and in particular to an unloading end for automatic electrolyte unloading. Background Technology

[0002] Because electrolytes are sensitive to moisture, they deteriorate rapidly upon contact with water and produce harmful hydrofluoric acid. Furthermore, due to their flammable and explosive properties, electrolytes cannot be exposed to oxygen. Therefore, ensuring the quality of electrolytes depends on proper storage and use. Consequently, lithium-ion battery electrolytes are generally transported in specially designed stainless steel tank trucks.

[0003] Utility model CN220245553U discloses an unloading end for unloading electrolyte raw materials, including a conveying pipe, a valve, and a connector pipe. One end of the connector pipe is connected to the electrolyte raw material unloading end, and the other end of the connector pipe is connected to one end of the conveying pipe via the valve. The other end of the conveying pipe is connected to the electrolyte raw material collection end. The connector pipe has two quick-connectors on its wall that communicate with its interior. These two quick-connectors are used to connect to a nitrogen source device, enabling the nitrogen source device to deliver positive pressure nitrogen gas into the connector pipe to purge contaminants and replace air. This unloading end connects to the electrolyte raw material unloading end via the connector pipe for unloading. The connector pipe, through the two quick-connectors, can connect to a nitrogen source device for nitrogen purging, ensuring the cleanliness of the connector pipe's interior and preventing electrolyte contamination. Simultaneously, the nitrogen gas replaces the air inside the pipe, preventing moisture and oxygen from damaging the electrolyte and ensuring its quality.

[0004] The two quick connectors on the connector tube of the device disclosed in the above-mentioned utility model can only cover the purging area of ​​the connector tube. When the valve is closed, air or contaminants may remain inside the delivery tube, which cannot be completely replaced by the existing design. If the delivery tube is sealed for a long time, moisture or impurities may accumulate in the dead corners inside, affecting the quality of the electrolyte. Utility Model Content

[0005] The purpose of this invention is to provide an unloading end for automatic electrolyte unloading, so as to solve the problem of limited coverage area of ​​quick connectors mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an unloading end for automatic electrolyte unloading, comprising a delivery pipe, a valve, and a connector pipe. The delivery pipe is provided with a purging port near the valve. The connector pipe is provided with two quick connectors on its wall. The purging port and the purging port are connected to the same three-way valve. A nitrogen source is connected to the three-way valve. An oxygen sensor is embedded in the inner wall of the end of the delivery pipe. A humidity sensor is provided in the inner wall of the connector pipe. Both the oxygen sensor and the humidity sensor are connected to the DCS control system.

[0007] Preferably, the delivery pipe includes a detachable rigid pipe section and a flexible pipe section, with a purge port pre-installed on the outer wall of the rigid pipe section, and the flexible pipe section connected to both ends by flanges.

[0008] Preferably, a proportional regulating valve is provided on the nitrogen source outlet main pipeline, and the proportional regulating valve receives a signal from the DCS system to dynamically adjust the nitrogen flow rate.

[0009] Preferably, the end of the conveying pipe is provided with a reverse purging branch, which is connected to a nitrogen source backup pipeline through a one-way valve for discharging residual electrolyte in the reverse direction after unloading.

[0010] Preferably, the outlet pipeline of the nitrogen source is connected in series with a nitrogen heating module, and the temperature control range of the heating module is 40-60℃.

[0011] Preferably, a pressure sensor for pressure monitoring is provided at the flange connecting the valve and the delivery pipe to monitor the sealing performance and trigger an alarm.

[0012] Preferably, the purge interface and quick connector are of the same standard as the ISO 16016 quick-change connector.

[0013] The beneficial effects of this utility model are: This invention effectively expands the nitrogen purging range and covers all dead zones in the pipeline by adding a purging interface to the delivery pipe and linking it with the quick-connect fitting. Data feedback from oxygen / humidity sensors allows for intelligent detection and control of nitrogen flow rate and purging direction. The use of a dual-channel quick-connect fitting, heating module, and reverse purging branch effectively improves system reliability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram illustrating the usage process of an unloading end for automatic electrolyte unloading proposed in this utility model; Figure 2 This is a three-dimensional structural diagram of an unloading end for automatic electrolyte unloading proposed in this utility model; Figure 3 This is a schematic diagram of the planar structure of an unloading end for automatic electrolyte unloading proposed in this utility model.

[0015] In the diagram: 1. Delivery pipe; 2. Valve; 3. Connector pipe; 4. Purge port; 5. Quick connector; 6. Three-way valve; 7. Nitrogen source; 8. Oxygen sensor; 9. Humidity sensor; 10. Proportional regulating valve; 11. Rigid pipe section; 12. Flexible pipe section; 13. Reverse purging branch; 14. Heating module; 15. Pressure sensor. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figure 1-3 An unloading end for automatic electrolyte unloading includes a delivery pipe 1, a valve 2, and a connector pipe 3. The delivery pipe 1 is provided with a purge port 4 near the valve 2. The pipe wall of the connector pipe 3 is provided with two quick connectors 5. The purge port 4 and the purge port 5 are connected to the same three-way valve 6. The three-way valve 6 is connected to a nitrogen source 7. An oxygen sensor 8 is embedded in the inner wall of the end of the delivery pipe 1. A humidity sensor 9 is provided in the inner wall of the connector pipe 3. Both the oxygen sensor 8 and the humidity sensor 9 are connected to the DCS control system.

[0018] The device connects to a nitrogen source 7 via a three-way valve 6, extending the purging range from the connector pipe 3 to the inside of the delivery pipe 1, effectively eliminating residual contamination near the valve 2.

[0019] By placing the quick connector 5 on the wall of the connector pipe 3 and sharing the nitrogen source 7 with the purging interface 4, synchronous cleaning of the connector area is achieved.

[0020] By using oxygen sensor 8 and humidity sensor 9, oxygen and humidity data can be transmitted to the DCS system, enabling real-time detection of oxygen concentration and humidity. Through feedback from these dual sensors, the DCS system automatically determines whether the purging process has met standards, thereby ensuring that the pipeline environment meets the requirements for electrolyte delivery.

[0021] Specifically, in this embodiment, the delivery pipe 1 includes a detachable rigid pipe section 11 and a flexible pipe section 12. The outer wall of the rigid pipe section 11 has a pre-reserved purge port 4, and both ends are connected to the flexible pipe section 12 through flanges.

[0022] The rigid pipe section 11 is made of 316L stainless steel and accounts for 1 / 3 of the total length of the delivery pipe 1. It is connected to the flexible hose section 12 by flanges at both ends. This provides a stable purging channel and avoids uneven airflow caused by hose bending; the detachable design facilitates segmented cleaning or replacement.

[0023] Specifically, in this embodiment, a proportional regulating valve 10 is provided on the main outlet pipeline of nitrogen source 7. The proportional regulating valve 10 receives signals from the DCS system to dynamically adjust the nitrogen flow rate.

[0024] The proportional control valve 10 is configured to receive signals from the DCS system and dynamically adjust the nitrogen flow rate. When the sensor detects excessive pollution in a certain area, it automatically increases the flow rate of that branch, thereby improving purging efficiency.

[0025] Specifically, in this embodiment, the end of the conveying pipe 1 is provided with a reverse purging branch 13. The reverse purging branch 13 is connected to the nitrogen source backup pipeline through a one-way valve and is used to discharge the residual electrolyte in the reverse direction after unloading.

[0026] The reverse purging branch 13 is opened after unloading, allowing nitrogen to be injected in reverse, pushing the residual electrolyte back to the connector pipe 3 for discharge, thereby preventing drying and scaling.

[0027] Specifically, in this embodiment, a nitrogen heating module 14 is connected in series with the outlet pipe of the nitrogen source 7. The temperature control range of the heating module 14 is 40-60℃. By heating the nitrogen, it is possible to effectively prevent the condensation and introduction of moisture when the low-temperature nitrogen comes into contact with the pipe.

[0028] Specifically, in this embodiment, a pressure sensor 15 is installed at the flange connecting valve 2 and delivery pipe 1 to monitor the sealing performance and trigger an alarm. This ensures that when valve 2 is closed after purging, the pressure sensor 15 can monitor the pipeline pressure; if the pressure drops, a DCS alarm is triggered, indicating a sealing failure.

[0029] Specifically, in this embodiment, the purge interface 4 and quick connector 5 are standardized as ISO 16016 quick-change connectors. The use of quick-change connectors ensures compatibility between each interface and the nitrogen source 7, thereby reducing maintenance costs.

[0030] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An unloading end for automatic electrolyte unloading, comprising a conveying pipe (1), a valve (2), and a connector pipe (3), characterized in that: The delivery pipe (1) is provided with a purge port (4) near the valve (2). The pipe wall of the connector pipe (3) is provided with two quick connectors (5). The purge port (4) and the purge port (4) are connected to the same three-way valve (6). The three-way valve (6) is connected to a nitrogen source (7). An oxygen sensor (8) is embedded in the inner wall of the end of the delivery pipe (1). A humidity sensor (9) is provided in the inner wall of the connector pipe (3). Both the oxygen sensor (8) and the humidity sensor (9) are connected to the DCS control system.

2. The unloading end for automatic electrolyte unloading according to claim 1, characterized in that: The delivery pipe (1) includes a detachable rigid pipe section (11) and a flexible pipe section (12). The outer wall of the rigid pipe section (11) has a pre-reserved purging port (4), and the two ends are connected to the flexible pipe section (12) through flanges.

3. The unloading end for automatic electrolyte unloading according to claim 2, characterized in that: The nitrogen source (7) outlet main pipeline is equipped with a proportional regulating valve (10), which receives signals from the DCS system to dynamically adjust the nitrogen flow rate.

4. The unloading end for automatic electrolyte unloading according to claim 3, characterized in that: The end of the conveying pipe (1) is provided with a reverse purging branch (13), which is connected to the nitrogen source backup pipeline through a one-way valve for discharging residual electrolyte in the reverse direction after unloading.

5. A truck unloading end for automatic electrolyte unloading according to claim 1 or 4, characterized in that: The outlet pipeline of the nitrogen source (7) is connected in series with a nitrogen heating module (14), and the temperature control range of the heating module (14) is 40-60℃.

6. The unloading end for automatic electrolyte unloading according to claim 5, characterized in that: A pressure sensor (15) for pressure monitoring is provided at the connection flange between the valve (2) and the delivery pipe (1) to monitor the sealing performance and trigger an alarm.

7. The unloading end head for automatic discharge of electrolyte according to any one of claims 1-6, characterized in that: The interface specifications of the purge interface (4) and quick connector (5) are uniformly ISO 16016 standard quick-change connectors.

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