A storage device for potassium hydroxide

Abstract

The utility model discloses a kind of storage device of potassium hydroxide, including storage container, KOH input port, inert gas input port, circulating pump system, observation port, sealing unit, cooling unit and control module are equipped on storage container;The control module is connected with metal ion concentration sensor, temperature sensor, flow sensor and pH monitor;The control module is used to collect the above sensor data, controls circulating pump system and cooling unit operating state, adjusts soft water supply flow, and triggers early warning when parameter is abnormal, simultaneously, operating data is uploaded to remote platform.

Description

Technical Field

[0001] This invention relates to a potassium hydroxide storage device. Background Technology

[0002] Potassium hydroxide (KOH), a strongly alkaline chemical, is widely used in industries such as batteries, electroplating, chemical synthesis, and decarbonization. Due to its extremely strong hygroscopic and corrosive properties, high requirements are placed on equipment sealing, environmental stability, and operational safety during storage and use. Existing KOH storage devices are mostly simple sealed containers, lacking comprehensive real-time monitoring, temperature control management, and intelligent operation and maintenance capabilities. This leads to risks such as seal aging, temperature fluctuations, corrosion and scale buildup, and leakage during long-term operation, thereby affecting system safety and operational efficiency.

[0003] Some traditional equipment lacks sensor systems, making it impossible to acquire the physical or chemical state parameters of KOH liquid in a timely manner. This often hinders timely detection and intervention in case of parameter anomalies or system malfunctions. Furthermore, liquid temperature control largely relies on passive cooling methods, resulting in low temperature control accuracy and a tendency for overcooling or overheating. In addition, maintenance largely depends on periodic manual inspections, lacking a proactive assessment mechanism for the lifespan or clogging trends of sealing components. This not only increases the maintenance burden but also reduces the operational reliability of the equipment. Utility model content:

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a potassium hydroxide storage device.

[0005] A potassium hydroxide storage device includes a storage container, which is equipped with a KOH inlet, an inert gas inlet, a circulating pump system, an observation port, a sealing unit, a cooling unit, and a control module. The control module is connected to a metal ion concentration sensor, a temperature sensor, a flow sensor, and a pH monitor. The control module is used to collect data from the above sensors, control the operation of the circulating pump system and the cooling unit, adjust the soft water supply flow rate, trigger an early warning when parameters are abnormal, and upload the operating data to a remote platform.

[0006] Furthermore, the control module includes a PLC or an industrial control motherboard, which has a local processing unit and a communication interface, and supports data uploading, remote monitoring and control.

[0007] Furthermore, the control module is equipped with a closed-loop temperature control program, which is used to adjust the chilled water flow rate of the heat exchange plate according to the temperature sensor data to maintain the KOH temperature stability.

[0008] Furthermore, the control module has the functions of historical data recording and trend analysis, and determines whether there is a sealing leak based on the collected ion concentration data and triggers an alarm.

[0009] Furthermore, the control module is further configured with a predictive maintenance algorithm to assess the lifespan of sealing components or pipeline blockage trends and generate maintenance recommendations.

[0010] Furthermore, the control module has a user interface for displaying graphical curves of operating parameters, alarm status, and log records, and supports users to manually adjust operating parameters.

[0011] Furthermore, the control module is equipped with a multi-level permission management mechanism to control access permissions and prevent accidental operations.

[0012] Furthermore, the control module is installed in the electrical control cabinet above or to the side of the circulating pump system. The electrical control cabinet is located in a non-corrosive area and is equipped with a ventilation and filtration device.

[0013] Furthermore, the cooling unit includes a liquid cooling pipe, and both the inlet and outlet of the liquid cooling pipe are equipped with heat exchange fin isolation structures.

[0014] Furthermore, the observation port is equipped with a cover, and a sealing unit is located at the junction of the observation port and the cover.

[0015] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0016] In terms of safety, the system effectively prevents KOH from contacting moisture or carbon dioxide in the air by configuring an inert gas inlet and a sealed structure, reducing the risk of moisture absorption and carbonation. Simultaneously, the control module integrates ion concentration monitoring and trend analysis algorithms, enabling real-time detection of seal leaks and timely response through an alarm mechanism, further enhancing the reliability of system operation. Furthermore, a multi-level access control mechanism prevents unauthorized operations and ensures operational safety.

[0017] In terms of intelligent control, the device builds a control system through a PLC or industrial control motherboard, which has local processing capabilities and remote communication interfaces. It can not only independently complete data acquisition and processing, but also realize remote monitoring and control. The integration of closed-loop temperature control program and predictive maintenance algorithm enables the system to automatically adjust temperature control and maintenance strategies according to real-time data, so as to achieve intelligent operation and efficient response.

[0018] The device also boasts significant advantages in ease of operation. The control module is equipped with a graphical user interface that displays real-time operating curves for temperature, pH, flow rate, etc., and allows users to manually adjust operating parameters, making operation simple and intuitive. The electrical control cabinet is rationally designed, located in a non-corrosive area, and equipped with ventilation and filtration devices, providing a good operating environment for the control module and facilitating routine maintenance.

[0019] Data-driven management is another highlight of this device. The system supports historical data recording and trend analysis, providing data support for maintenance strategy optimization, fault prediction, and operational condition retrospection. At the same time, all data can be uploaded to a remote platform to achieve multi-terminal collaborative management, improving system visualization and controllability.

[0020] In terms of temperature control efficiency, an isolation structure between the liquid cooling pipes and heat exchange fins is adopted to effectively achieve heat exchange between KOH and the cooling medium while preventing cross-contamination. The closed-loop temperature control program in the control module can automatically adjust the chilled water flow rate to ensure stable operation of KOH within the set temperature range, improve cooling response speed and temperature control accuracy, and ensure process continuity and stability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a storage device;

[0022] Figure 2 This is the logic block diagram of the control module;

[0023] In the diagram, 1 is the storage container, 2 is the KOH inlet, 3 is the observation port, 4 is the inert gas inlet, 5 is the inlet, and 6 is the outlet. Detailed Implementation

[0024] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0025] A potassium hydroxide storage device includes a storage container 1, which is equipped with a KOH inlet 2, an inert gas inlet 4, a circulating pump system, an observation port 3, a sealing unit, a cooling unit, and a control module. The control module is connected to a metal ion concentration sensor, a temperature sensor, a flow sensor, and a pH monitor. The control module is used to collect data from the above sensors, control the operation of the circulating pump system and the cooling unit, adjust the soft water supply flow rate, trigger an early warning when parameters are abnormal, and upload the operating data to a remote platform.

[0026] This implementation integrates a PLC or industrial control motherboard into the control module, providing it with sufficient computing and logic processing capabilities to process data from sensors in real time and control the operation of various actuators. The local processing unit can directly perform temperature regulation, flow control, and alarm response based on the acquired parameters without external intervention, improving system response speed. Communication interfaces such as Ethernet or serial buses are used to upload data to a remote monitoring platform, allowing users to remotely view the operating status and execute control commands. Beneficial effects: It achieves local intelligent control and remote interactive management of the potassium hydroxide storage device, improving system reliability, intelligence level, and operational flexibility.

[0027] In one possible implementation, the control module is configured with a closed-loop temperature control program to adjust the chilled water flow rate in the heat exchanger based on temperature sensor data to maintain a stable KOH temperature. Working principle: This implementation reads real-time data from the temperature sensor and compares it with the set temperature. If a deviation is detected, the control module automatically adjusts the chilled water flow rate in the heat exchanger according to a preset PID algorithm or other closed-loop control logic, thereby achieving dynamic and stable control of the liquid temperature inside the storage container 1. Beneficial effects: This temperature control strategy can significantly improve the system's temperature control accuracy, avoid affecting the properties of KOH or the system's operational stability due to temperature fluctuations, and improve safety and operational efficiency.

[0028] In one possible implementation, the control module has historical data recording and trend analysis functions, and determines whether there is a sealing leak based on the collected ion concentration data and triggers an alarm. Working principle: In this implementation, the control module has a built-in storage unit for periodically storing various sensor data, including metal ion concentration. The system can call up historical data for comparative analysis. If a continuous upward trend in ion concentration is detected, exceeding the set leakage judgment threshold, it is determined that the sealing performance has deteriorated or a leakage problem exists, and an alarm mechanism is immediately triggered. Beneficial effects: Judging the leakage status through data trends can identify potential risks at an early stage, avoid liquid leakage causing equipment corrosion or safety accidents, and improve equipment operational reliability.

[0029] In one possible implementation, the control module is further configured with a predictive maintenance algorithm to assess the lifespan of sealing components or pipeline blockage trends and generate maintenance recommendations. Working principle: This implementation utilizes the algorithm model in the control module, combined with operational data collected by sensors (such as pump running time, temperature fluctuation amplitude, flow rate decay, etc.), to analyze the aging rate of seals and changes in flow resistance within the pipeline, automatically determining the health status of system components. When the estimated lifespan is nearing its end or a significant blockage trend is observed, the system generates maintenance recommendations and notifies maintenance personnel via an interface or remote platform. Beneficial effects: Equipment maintenance can be scheduled in advance, reducing unplanned downtime, improving system availability and operational efficiency, and extending the overall lifespan of equipment.

[0030] In one possible implementation, the control module has a user interface for displaying graphical curves of operating parameters, alarm status, and log records, and supports manual adjustment of operating parameters by the user. Working principle: This user interface is a graphical display terminal that can display real-time curves of parameter changes such as temperature, pH, and flow rate, record alarm time, type, and response status, and support users to modify operating settings such as target temperature and upper flow rate limits via touch or buttons. Adjusted parameters are fed back to the control logic in real time to take effect. Beneficial effects: It improves the system's human-machine interaction capabilities, facilitates on-site personnel in monitoring status and adjusting operating parameters, and enhances operational intuitiveness and flexibility.

[0031] In one possible implementation, the control module is equipped with a multi-level access control mechanism to control access permissions and prevent accidental operations. Working principle: In this implementation, the user interface and control module program are set with different permission levels, such as administrator, maintenance personnel, and observers. Different levels can access different functional areas; for example, only administrators can modify alarm thresholds, while ordinary users can only view real-time data. Access control is implemented based on password verification or IC card identification. Beneficial effects: Effectively prevents system risks caused by unauthorized operations and accidental operations, improving the security and standardization of equipment operation.

[0032] In one possible implementation, the control module is installed in an electrical control cabinet above or to the side of the circulating pump system. This cabinet is located in a non-corrosive area and is equipped with a ventilation and filtration system. Working principle: Encapsulating the control module in a separate electrical control cabinet, positioned above or to the side of the equipment away from corrosion sources, ensures that the control components are not directly exposed to alkaline vapors or high humidity environments, extending the lifespan of electronic components. The ventilation and filtration system ensures a suitable temperature inside the cabinet and prevents dust from entering. Beneficial effects: Improves the stability of the control module's operating environment, reduces the failure rate, and enhances the overall reliability and ease of maintenance of the system.

[0033] In one possible implementation, the cooling unit includes a liquid-cooled pipe, with both the inlet 5 and outlet 6 of which are equipped with heat exchange fin isolation structures. Working principle: The liquid-cooled pipe in the cooling unit is a closed-loop structure, with heat exchange fin assemblies connected to its inlet and outlet 6 respectively. This isolates KOH from direct contact with chilled water, ensuring heat exchange efficiency while preventing cross-contamination of the liquids. The heat exchange fins are made of a metal material with good thermal conductivity and are fixed to the cooling chamber by welding or clamping. Beneficial effects: The heat exchange structure design improves heat transfer efficiency, ensures that the KOH liquid maintains within the set temperature range, and guarantees process stability and operational safety.

[0034] In one possible implementation, the observation port 3 is equipped with a cap, and a sealing unit is disposed at the junction of the observation port 3 and the cap. Working principle: This embodiment, by installing an openable and closable cap at the observation port 3 of the storage container 1, and providing a corrosion-resistant sealing gasket or sealing ring at the interface between the cap and the container, combined with a bolt or snap-fit ​​clamping structure, ensures that the observation port 3 is completely sealed when the cap is closed, preventing external moisture from entering or KOH from evaporating and leaking. Beneficial effects: This structural design ensures both the operator's visibility of the container's interior and improves the overall sealing performance, ensuring long-term stable storage of materials. The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A storage device for potassium hydroxide, characterized in that, The system includes a storage container equipped with a KOH inlet, an inert gas inlet, a circulating pump system, an observation port, a sealing unit, a cooling unit, and a control module. The control module is connected to a metal ion concentration sensor, a temperature sensor, a flow sensor, and a pH monitor. The control module is used to collect data from the above sensors, control the operation of the circulating pump system and the cooling unit, adjust the soft water supply flow rate, trigger an early warning when parameters are abnormal, and upload the operating data to a remote platform.

2. The apparatus according to claim 1, characterized in that, The control module includes a PLC or industrial control motherboard, with a local processing unit and communication interface, supporting data upload, remote monitoring and control.

3. The apparatus according to claim 1, characterized in that, The control module is equipped with a closed-loop temperature control program, which is used to adjust the chilled water flow rate of the heat exchange plate according to the temperature sensor data to maintain the KOH temperature stability.

4. The apparatus according to claim 1, characterized in that, The control module has the functions of historical data recording and trend analysis, and determines whether there is a sealing leak based on the collected ion concentration data and triggers an alarm.

5. The apparatus according to claim 1, characterized in that, The control module is further configured with a predictive maintenance algorithm to assess the lifespan of sealing components or the trend of pipe blockage and generate maintenance recommendations.

6. The apparatus according to claim 1, characterized in that, The control module has a user interface for displaying graphical curves of operating parameters, alarm status, and log records, and supports users to manually adjust operating parameters.

7. The apparatus according to claim 1, characterized in that, The control module is equipped with a multi-level permission management mechanism to control access permissions and prevent accidental operations.

8. The apparatus according to claim 1, characterized in that, The control module is installed in the electrical control cabinet above or to the side of the circulating pump system. The electrical control cabinet is located in a non-corrosive area and is equipped with a ventilation and filtration device.

9. The apparatus according to claim 1, characterized in that, The cooling unit includes a liquid cooling pipe, and both the inlet and outlet of the liquid cooling pipe are equipped with heat exchange fin isolation structures.

10. The apparatus according to claim 1, characterized in that, The observation port is equipped with a cover, and the sealing unit is located at the junction of the observation port and the cover.

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