Printing & Packaging Workshop Waste Heat Utilization and Temperature/Humidity Control

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Project Background

Multiple ovens in the gravure-printing workshop exhaust at about 90°C, making the workshop hot and stuffy in summer.

Challenges

Waste heat is lost to exhaust; summer heat gain is significant and the work environment poor.

Solution

Rotary Heat ExchangerRecovers oven exhaust energy for workshop make-up-air preheating, and combined withDesiccant Rotor Dehumidifierhumidity control.

Results

Workshop temperature dropped about 4℃; AHU load reduced by 12%。

印刷包装余热与温湿度

印刷包装车间纸张对温湿度敏感，且烘干排放余热。通过转轮热回收回收排风能量、稳定车间温湿度，可减少纸张变形与静电，同时降低空调与烘干能耗，提升成品率与舒适度。

静电与变形控制

稳定温湿度可显著降低纸张静电与套印误差，热回收节能的同时间接提升成品率与设备稳定性。

静电与变形控制

稳定温湿度可显著降低纸张静电与套印误差，热回收节能的同时间接提升成品率与设备稳定性，是印刷车间性价比高的改造项，投资回收期通常较短。

印刷车间可先对高价值产线试点，再逐步推广到全厂；以成品率与能耗的双重改善作为推广依据，更易获得管理层支持。

建议先在高价值产线试点，以成品率提升与能耗下降的双重改善作为全厂推广的依据，更容易获得管理层支持与预算批复，平滑推进改造。