Design And Implementation Of Gas Hot Water Boiler Liquid Level Control System

Along with the development of the western region was deepened, especially after "the central work in Xinjiang symposium", national energy development, infrastructure construction and other industries in Xinjiang investment increase, investment promotion and capital introduction will be more preferential policies, focus on environmental governance is an important link in attracting investment. For nearly three years in Urumqi conversion from coal to gas central heating system, under the promoting of how to embody the boiler energy saving, high efficiency, safety and environmental protection become a major issue. Specific industrial computer as the main development platform, industrial control configuration software as the main development tools for the original hot water boiler monitoring system software, failure rate is higher, the hardware running slow, affect production, through the control effect analysis, the traditional PID control algorithm is improved. And on the basis of consulting a large number of data, choose to use unconventional programming combined with supervisory control and data acquisition software control method, instead of mathematical model of the modeling method, the boiler liquid level real-time monitoring.Through Urumqi Tongda company, the field investigation, a summary to gas Gas boiler production requirements, after the analysis of coal gas boiler control system design requirements, the working process of the gas hot water boiler, the steam drum level control part of the corresponding research at the same time, the application of PID control in the steam drum level control and improvement. For controlled boiler liquid level simulation, from adjusting the boiler liquid level, in the full combustion and real-time detection temperature, achieve energy conservation and emissions reduction, improve the production. With reference to the requirements analysis of gas hot water boiler, technical specifications and engineering standards. To achieve some of its function, simulation Tongda company, the demand of monitoring implementation: gas hot water boiler liquid level monitor implementation of the regulation; Take the software program for real-time monitoring, through monitoring configuration software of the embedded implementation, in order to improve production efficiency and management level. Learned, from control the actual operation of the boiler control object is relatively complex, uncertain model parameters, to improve the control precision of the system. The experimental results show that the method in Urumqi tongda heating power the actual production control process is feasible and worth extending.