The Gas Boiler Heating Energy-saving Control System Design Based On Control Technology Process

With the rapid development of urban integration, Central heating will become an important support for the development of urban construction in the northern region of china. In the heating system, the most of are boiler room heating, the heat efficiency of boiler is low and the pollution to environment is relatively large, The boiler control level is low., To solve these problems, analyzed the various forms of computer control for industrial in the present. According to the characteristics of energy saving control of district heating, choose condensing gas fired boiler for environmental protection. The combination of various forms of industrial control computer control analysis, Choose the Multi-Boilers Control System for the control of this project.This project adopts SIEMENS PLC series boiler control system control and monitoring system, Automatic monitoring control system of multi station joint operation of boiler. According to the characteristics of the boiler heating site, reasonable installation of hardware, so that the wiring is convenient and safe. Design a reasonable wiring diagram, and the boiler site wiring to select three core cables, to ensure the stability of the system. The project provides a reference basis for future boiler control system. the main research work is as follows:(1) In the basic requirements of overall analysis of district heating, the overall design of the boiler control system, Introduces the general work process of boiler selection、system arrangement and control system of the boiler.(2) Analysis of boiler group control system design, computer monitoring and control system the control system design and control design of boiler machine, For the boiler water control loop, Combustion control system for detailed design, And after the transformation of the test data and the transformation of the former comparative analysis, The test results show that after the transformation of the boiler control system not only can complete the heating requirements, and can save energy more than 30%.(3) Analysis of the energy-saving design of the boiler control system, including condensation recovery technology, remote temperature measurement and compensation design and economy of the boiler combustion.