[1]王旭,任晓芬,李广焕,等.吸收式热泵在污泥低温干化工艺中的应用[J].中国给水排水,2023,39(8):133-139.
　WANGXu,RENXiao-fen,LIGuang-huan,et al.Application of Absorption Heat Pump in Sludge Low?temperature Drying Process[J].China Water & Wastewater,2023,39(8):133-139.
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吸收式热泵在污泥低温干化工艺中的应用

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第39卷 期数: 2023年第8期 页码: 133-139 栏目: 出版日期: 2023-04-17
Title:
Application of Absorption Heat Pump in Sludge Low?temperature Drying Process
作者:
王旭1， 任晓芬1,2， 李广焕3， 黄冠英3， 郭艳平4， 秦显强1
（1.河北工程大学 能源与环境工程学院，河北 邯郸 056038；2.石家庄铁道大学 机械工程学院，河北 石家庄 050043；3.广东吉康环境系统科技有限公司，广东 佛山 528216；4.广东省固体废弃物资源化与重金属污染控制工程技术研究中心 广东环境保护工程职业学院，广东 佛山 528216）
Author(s):
WANG　Xu1， REN　Xiao-fen1，2， LI　Guang-huan3， HUANG　Guan-ying3， GUO　Yan-ping4， QIN　Xian-qiang1
（1. School of Energy and Environmental Engineering， Hebei University of Engineering， Handan 056038， China； 2. School of Mechanical Engineering， Shijiazhuang Tiedao University， Shijiazhuang 050043， China； 3. Guangdong Jikang Environment System Technology Co. Ltd.， Foshan 528216， China； 4. Guangdong Province Solid Waste Recycling and Heavy Metal Pollution Control Engineering Technology Research Center， Guangdong Polytechnic of Environmental Protection Engineering， Foshan 528216， China）
关键词:
吸收式热泵;  污泥;  低温干化
Keywords:
absorption heat pump;  sludge;  low-temperature drying
摘要:
以某处理规模为100 t/d的污泥低温干化项目为研究对象，介绍了吸收式热泵在污泥低温干化工艺中的应用。结合系统原理和现场运行工艺，探讨了该系统的热平衡模型，计算了各环节的能量分布，分析了系统的性能和经济性。结果表明，相较于传统的蒸汽圆盘式干化技术和蒸汽辅助热风带式干化技术，采用吸收式热泵结合的蒸汽污泥低温干化技术，系统单位能耗除水量可达10.9 kg水/kg标煤，分别为两种传统蒸汽干化技术的1.23倍和1.44倍。在除水量一定时，系统的标煤消耗量和CO2排放量较两种传统的蒸汽污泥干化技术分别降低18.6%和30.5%，环保效益显著。该项目实施后，单位污泥干化成本为153.3元/t，较两种传统的蒸汽污泥干化技术分别降低21.7%和31.3%，污泥减重率达77.34%，节约处理费用26.3%，经济效益明显。该项目的实施和运行对于可提供低价蒸汽（燃煤电厂或垃圾焚烧发电厂）的大型污泥低温干化项目设计与建设具有参考意义。
Abstract:
The application of absorption heat pump (AHP) in a 100 t/d sludge low-temperature drying project is introduced. The heat balance model of the system is discussed, the energy distribution of each link of the operating process is calculated, and the system’s performance and economy are compared and analyzed combining the system theory and process operation. The results show that the specific water extraction rate of the system can remove up to 10.9 kg water for every 1 kg standard coal consumption, which is 1.23 times and 1.44 times of the traditional steam disc drying technology and steam-assisted hot airbanddrying technology. The standard coal consumption and CO2 emissions are 18.6% and 30.5% respectively lower than the two conventional steam sludge drying technologies, which shows significant environmental benefits. It also shows significant economic benefits that the unit sludge treatment cost after the implementation of the project is 153.3 yuan/t, which is 21.7% and 31.3% lower than the two conventional steam sludge drying technologies,and the sludge weight reduction rate can reach 77.34%, which saves 26.3% of processing cost. The implementation and operation of this project can provide reference for the design and construction of large sludge drying projects that can provide low-cost steam (coal-fired power plants or waste-to-energy plants).

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更新日期/Last Update: 2023-04-17