基于梯度除湿策略的双级串联干燥剂涂层换热器深度除湿系统研究

打开文本图片集

中图分类号：TU834.9 文献标志码：A 文章编号：1673-3851（2026）05-0290-08

Reference Format： HU Peng，ZHENG Xu，YI Zhixiang，et al. Research on a deep dehumidification system based on a gradient dehumidification strategyanda two-stage series desiccnt-coated heat exchangerJ].Journal of Zhejiang Sci-Tech University，2026，55（3）：290-297.

Research on a deep dehumidification system based on a gradient dehumidification strategy and a two-stage series desiccant-coated heat exchanger

HU Peng ，ZHENG Xu，YI Zhixiang，WANG Weining （School of Civil Engineering and Architecture， Zhejiang Sci-Tech University， Hangzhou 3lO0l8，China）

Abstract： To address the urgent need for deep dehumidification in scenarios such as precision optical manufacturing，this study employs a gradient dehumidification strategy to develop an energy-eficient deep dehumidification system based on a two-stage series desiccant-coated heat exchanger. The system integrates two types of composite adsorbents with complementary properties. Through the construction of an experimental platform，the effects of inlet air temperature and relative humidity on system performance were systematically investigated，and a comparative analysis with a single-stage system was conducted under standard operating conditions. The experimental results demonstrate that the system exhibits significant advantages in terms of dehumidification depth and energy eficiency. Under the standard condition of 30∘C inlet temperature and 60% relative humidity， its average dehumidification amount and thermal coefficient of performance reached 12.36g/kg and O.62，respectively，representing improvements of 72.1% and 14.8% compared to the single-stage system. System performance improved with increasing inlet temperature and humidity，achieving a maximum average dehumidification amount of 16.53g/kg at 80% relative humidity. Furthermore， the system can effectively utilize low-temperature heat sources around 50∘C to achieve deep dehumidification capability， processing air to below 10% relative humidity. This study provides a novel system solution and technical reference for achieving high-efficiency deep dehumidification using low-temperature heat sources.

Key words： two-stage series system； deep dehumidification; composite adsorbent； desiccant-coatedheat exchanger； low-temperature regeneration

0引言

全球能源需求持续增长与环境保护、化石资源不可再生之间的矛盾日益突出，在此背景下，建筑节能已成为推动可持续发展与实现“双碳”目标的关键环节。（剩余10907字）