大型地下工程用除湿型水环热泵机组研制
Development of dehumidification water loop heat pump units for large underground spaces
摘要：
提出了一种新型除湿水环热泵机组，能除湿、准确控温和制热，可满足地下工程部分负荷和满负荷的不同需求，并通过水环实现工程内热量转移。通过PLC控制压缩机荷载和制冷剂三通比例调节，消除了调温盲区，送风的温湿度精度提高；通过双流向设计，热泵工况时增加冷凝面积等技术，机组运行性能得到显著提高。在测试平台上对机组性能进行了测试。
Abstract：
Presents a new type of dehumidification water loop heat pump unit with the function of dehumidification, precise temperature adjustment and heating, capable of meeting different demands of partial and full load conditions of underground spaces, and transferring heat inside the space by the water loop. Applies PLC system to control compressor loading and three-way proportional control valve to adjust refrigerant rate so as to control temperature appropriately and improve control precision of temperature and humidity, and improves the unit performances markedly by techniques of dual flow direction design and condensation area increasing. Tests performance of the unit on the test bed.
Keywords:underground structure, dehumidification, water loop heat pump, development, test