大容量D型燃气锅炉自然循环水动力特性分析  

Hydrodynamic character analysis of natural circulation for D-type boilers

作　　者：姚寿广[1] 张灵龙 聂宇宏[1] 钱飞舟 胡法依 YAO Shouguang;ZHANG Linglong;NIE Yuhong;QIAN Feizhou;HU Fayi(School of Energy and Power Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China;Suzhou Hailu Heavy Industry Limited Liability Company,Zhangjiagang 215600,China)

机构地区：[1]江苏科技大学能源与动力工程学院,镇江212003 [2]苏州海陆重工股份有限公司,张家港215600

出　　处：《江苏科技大学学报（自然科学版）》2018年第4期491-496,共6页Journal of Jiangsu University of Science and Technology:Natural Science Edition

摘　　要：针对200 t/h大容量D型燃气锅炉水动力学特点,通过比较系统运行压差与各管排停滞压差来区分多排对流管束区域中上升管与下降管,获得了下降管数量随工况变化的规律.并根据确定的下降管数量进行了该型锅炉自然循环水动力学计算,进一步对该锅炉在不同工况下水动力学特性参数变化趋势进行了分析,为该型大容量D型燃气锅炉的设计与安全运行提供了理论依据.This paper aims at the hydrodynamic characteristics of 200 t/h large capacity D-type gas boiler.By comparing the differential pressure of the system operation and the stagnation pressure of each tube,the rising and falling pipes in the area of multiple rows of convection tubes were distinguished,and the rule of the number of falling pipe with the changing of working condition was obtained.The dynamic calculation of natural circulation water of the boiler was carried out according to the number of the down tubes,and the dynamic characteristic parameters of the boiler in different conditions were analyzed,which provides a theoretical basis for the design and safe operation of this type of large capacity D gas boiler.

关 键 词：D型锅炉 自然循环 水动力特性 可靠性 

分 类 号：TK229[动力工程及工程热物理—动力机械及工程]