摘要
介绍了红磷公司270 kt/a硫磺制酸装置余热梯级利用技术改造情况。空气风机驱动用汽轮机出口0.8 MPa、280℃蒸汽28t/h,需要通过减温减压器减温减压至0.5 MPa、220℃后并入低压管网供下游装置使用。余热梯级利用改造项目取消减温减压器,设置1台650 k W热功汽轮机和1台800kW异步发电机,发电后汽轮机出口0.5 MPa、220℃蒸汽直接并入低压管网。改造项目实施后吨酸电耗由原来的32kWh左右降至18kWh。
Technological transformation of waste heat cascade utilization of the 270 kt/a sulphur-burning sulphuric acid plant in Honglin Branch are introduced.Air blower drive steam turbine outlet 0. 8 MPa, 280 ℃ centigrade steam 28 t/h,it is necessary to reduce the temperature and pressure by reducing the temperature and pressure to 0. 5 MPa, 220 ℃ and put into the low pressure pipe network tor use downstream.The heat and vacuum reducer of the waste heat cascade utilization is cancelled, set 1 set of 650 kW steam turbine power and 1 set of 800 kW asynchronous motor, steam turbine outlet 0. 5 MPa,220 ℃ steam directly into low pressure pipe network al- ter power generation. At）er the implementation of the project,tons of acid power consumption from the original 32 kWh left to 18 kWh.
作者
李士德
LI Shide(Honglin Branch, Yunnan Yuntianhua Co., Ltd., Kaiyuan, Yunnan, 661699, China)
出处
《硫酸工业》
CAS
2018年第4期33-35,共3页
Sulphuric Acid Industry
关键词
硫磺制酸
余热回收利用
减温减压
汽轮机
异步电机
sulphur-burning sulphuric acid
waste heat recovery and utilization
temperature reduction and decompression
steamturbine
asynchronous motor
