Views: 0 Author: Site Editor Publish Time: 2026-06-12 Origin: Site
NMP plate-fin heat recovery is primarily used in lithium battery coating processes. Through a high-efficiency plate-fin heat exchanger, it exchanges heat energy between high-temperature NMP exhaust gas and cooled, low-temperature gas, saving up to 30% or more in drying energy consumption and significantly reducing the overall heating and cooling load of the plant.
Operating Principle and Advantages
Gas-to-Gas Heat Exchange: Utilizing the compactness and extremely high heat exchange area of the plate-fin structure, the high-temperature exhaust gas (approximately 100°C-150°C) discharged from the coating machine exchanges heat with the condensed, low-temperature gas.
High Heat Exchange Efficiency: Heat exchange efficiency can reach 90%-95%.
Energy Saving and Consumption Reduction: The recovered heat energy can be used to preheat fresh air or heat circulating air, achieving secondary heat utilization.
Features of the NMP Solvent Recovery System
High Boiling Point: NMP has a high boiling point of 202°C, making it easy to separate from the air through cooling and condensation.
Multi-stage condensation: The system typically employs multi-stage heat exchange, including pre-coolers and aftercoolers, combined with NMP exhaust heat recovery technology to ensure overall emissions meet standards while achieving a solvent recovery rate of nearly 90%-95%.
Safety and environmental protection: Through a highly efficient and energy-saving heat exchange process, not only can the solvent be concentrated, collected, and reused, but the energy consumption of the equipment can also be reduced.
