A method for automatic switching control of multiple gas cylinders in a laboratory for NMP regeneration system
By employing an automatic switching method with at least two gas cylinder groups and a PLC controller in the NMP regeneration system testing laboratory, the problem of short usage time for a single gas cylinder was solved, achieving stable and automated management of gas supply and ensuring continuous operation and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGDONG BAIHONG YUNENG NEW MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2026-05-15
- Publication Date
- 2026-07-17
AI Technical Summary
In the testing laboratory of NMP regeneration system, the small gas storage capacity and short usage time of a single gas cylinder necessitate frequent cylinder replacements, leading to equipment downtime and safety hazards. Existing technologies cannot achieve stable and automated management of gas supply.
At least two gas cylinder groups are used. Each gas cylinder group is connected to a shut-off valve and a pressure detection switch valve through a metal hose. The PLC controller monitors the gas delivery pressure in real time and automatically switches the gas cylinder group when it is lower than the preset threshold, so as to achieve seamless switching and automated management of gas source.
By using an automatic switching control method for multiple gas cylinders, the continuous and stable operation of the testing equipment is ensured, the risk of unplanned equipment downtime is reduced, real-time digital monitoring and predictive maintenance of gas supply are realized, and the reliability and safety of gas supply are improved.
Smart Images
Figure CN122407965A_ABST