Influencing Factors and Countermeasure on Steam Consumption of Thermal Deaerator
In order to meet the energy-saving and consumption reduction needs of purification companies,and improve the steam production efficiency of boilers,for excessive steam consumption in thermal deaerator,this article introduced the steam consumption formula of the thermal deaerator,and analyzed and discussed multiple factors such as inlet temperature,insulation state,and operation mode.At the same time,a method of enthalpy control mode based on the correlation between the steam flow and outlet flow of deaerator was proposed to achieve precise control of stream usage of deaerator,replacing the traditional deaerator constant pressure control mode.Based on the steam consumption formula of the deaerator,a mathematical model was established,and a PID control loop for steam flow was established.As a result,the steam control functions was implemented on the DCS system.The steam consumption of 100 tons of water was reduced by 1.69 t compared to the pre-implementation optimization and improvement plan,achieving the goal of precise control of stream usage.
deaeratorsteam consumptioninfluencing factorsimprovementcontrol model
万方数据
维普
