欢迎访问过程工程学报, 今天是

过程工程学报 ›› 2017, Vol. 17 ›› Issue (5): 1091-1096.DOI: 10.12034/j.issn.1009-606X.217175CSTR: 32067.14.jproeng.217175

• 环境与能源 • 上一篇    下一篇

工业低温烟气废热回收与梯级利用技术的研究与应用

郭乃理1*， 杨春生1， 肖 鹏1,2， 黄建琼1,2， 李 貌1， 隋良红2， 李兴贵2     

  1. 1. 中国测试技术研究院，四川 成都 610021; 2. 中测测试科技有限公司，四川 成都 610021
  • 收稿日期:2017-03-13 修回日期:2017-05-31 出版日期:2017-10-20 发布日期:2017-10-10
  • 通讯作者: 郭乃理 naili2005@163.com
  • 基金资助:
    四川省科技支撑计划项目;四川省科技支撑计划项目;四川省科技服务业示范项目

Research and Application of Waste Heat Recovery and Cascade Utilization for Low-grade Flue Gas in Industrial Field

Naili GUO1*,  Chunsheng YANG1,  Peng XIAO1, 2,  Jianqiong HUANG1, 2,  Mao LI1,  Lianghong SUI2,  Xinggui LI2     

  1. 1. National Institute of Measurement and Testing Technology, Chengdu, Sichuan 610021, China; 2. Zhongce Measurement and Testing Technology Co., Ltd., Chengdu, Sichuan 610021, China
  • Received:2017-03-13 Revised:2017-05-31 Online:2017-10-20 Published:2017-10-10

PDF

摘要： 从工业企业的实际需求出发，根据热力学基本原理，运用现代传感器技术、自动测量与控制技术和高效的热交换技术，研发出一套综合高效的工业企业低温烟气废热回收和梯级利用系统，用于企业实际生产中. 该系统采用模块化设计，更好地适应了工业生产工况的不断变化，解决了工业中常见的低温(低于250℃)废热回收利用率不高的问题，实现了废热回收量和使用量的全自动动态调节，克服了同类系统用途单一、回收利用率低、自动化程度低、操作复杂且精度差等缺陷. 该系统不仅为该企业节约30万元/年以上的能源支出，还减少了废热自然排放造成的能源浪费与热污染，具有显著的社会和经济效益.

关键词: 低温废热, 废热回收, 梯级利用, 动态调控

Abstract: To satisfy the actual demands of industrial enterprises, a comprehensive and high-efficient system based on the principle of thermodynamics, and applicable to recovery and cascade utilization of waste heat for low-grade flue gas in industrial field, has been researched and developed within modern sensor technology, automatic measurement and control technology, and high-efficient heat exchange technology. It has been applied practical production in the industrial enterprise. Modular design has been adopted, which can better adapt to the highly-variable working conditions during the productive process and then achieve automatic dynamic control for the amount of recovery and utilization of waste heat. It has gotten rid of the low efficiency of recovery and utilization for low-grade waste heat below 250℃ in the industrial enterprises. Moreover, it overcame the defects of analogous system, such as narrow range of application, low efficiency of recovery and utilization, poor level of automation, and complexity and poor precision for operation. The practical application in the industrial enterprise has demonstrated that the system can only save the energy cost beyond 300000 ￥/a, but also decrease energy waste and thermal pollution caused by direct emission of waste heat. Therefore benefit society and economy were significantly.

Key words: Low-grade waste heat, Waste heat recovery, Cascade utilization, Dynamic control