CAJ | 학술논문

为降低干燥过程的能耗,基于空心桨叶干燥机建立了一套机械蒸汽再压缩式热泵干燥系统,采用罗茨压缩机驱动,对污泥间歇干燥过程的恒速段进行实验研究,实验结果表明:在恒速段,降低干燥压力、适当减小压缩比、选择合适的转轴频率均有利用提高系统的运行效率;在实验条件范围内,MVR热泵干燥系统的COP为3. 9~5. 0,SMER为5. 2~7. 7.
위강저간조과정적능모,기우공심장협간조궤건립료일투궤계증기재압축식열빙간조계통,채용라자압축궤구동,대오니간헐간조과정적항속단진행실험연구,실험결과표명:재항속단,강저간조압력、괄당감소압축비、선택합괄적전축빈솔균유이용제고계통적운행효솔;재실험조건범위내,MVR열빙간조계통적COP위3. 9~5. 0,SMER위5. 2~7. 7.
To reduce energy consumption of drying process, Mechanical Vapor Recompression heat pump drying system was established which based on the hollow blade dryer. The system was drived by roots compressor, and constant rate of batch drying sludge was carried out. The experimental results showed that reducing drying pressure, decreasing compression ratio and the best shaft frequency could improve the efficiency of the system in constant rate stage. In the experimental range ,the COP of MVR heat pump drying system was 3. 9~5. 0, the SMER was 5. 2~7. 7.