High Temperature Multiphase Flow Wind Tunnel Design And Configuration Software Platform Based Thermal Monitoring System Developed

The main contents of this paper have two parts. One is the design of laboratorial equipment of the high-temperature multiphase-flow wind tunnel, the other is the de ve 1 opment of thermal engineering monitoring and controlling system. The building of this wind tunnel in Institute of Thermal Power Engineering of Zhejiang University is a major item according to the school. To ensure the feasibility of laboratorial system a steady.dependable monitoring and controlling system is necessary. This paper based software of PC on KingView. Combining the project of Shanghai Taopu industrial estate sewage factory this paper has discussed the usage of KingView more. The emphasis of this paper is design and development of thermal engineering monitoring and controlling system.According to the small thermal system's request, the monitoring and controlling system adopts a total distributed control system(DCS) constituted by a Personal Computer (PC),a programmable logic controller(PLC) and thermal power engineering signal sensors,sender,controller, etc. The whole DCS is used to monitor data and perform automatic control, which ensures that thermal systems run safely and steadily.This paper has developed two systems of thermal engineering monitoring and controlling. The two systems are based on same basic theory, but they use different sets of PLC. The monitoring and controlling system of high-temperature multiphase-flow wind tunnel adopts SIMATIC S7 PLC, and its software is made with STEP 7; The system of Shanghai Taopu industrial estate sewage factory adopts MODICON Quantum PLC, and its software is made with LD editor in Concept. They both perform functions of collecting data and operating automatic control loops. Due to the advantage of universal configurative software, the software of PC is designed with KingView fulfilling the functions of system security management, data management, interface display, control adjustment, etc.The practice of this kind of monitoring and controlling system has proved the advantage of KingView which simplifies the developing process of PC software and fulfills the communication between PC and PLC easily. So PC and PLC can cooperate well to form a friendly interface, strong configuration, steady dependable run thermal engineering monitoring and controlling system.