| Research on this subject based on Siemens s7-1200 controller, combined with HVAC engineering, computer technology, automation technology and communications technology to complete the water of the heat transfer station remote monitoring system using Siemens WinCC OA PC platform software implementation of all controlled heat transfer station system for data acquisition, archiving and analysis. Data in a single remote heat transfer station, while the station control, to achieve the heating network hydraulic conditions of real-time monitoring, and then by the site to complete accurate data waterline remote and heat distribution, saving valuable human resources, energy, reduce heat consumption, improve the economic efficiency of thermoelectric companies.Paper chooses Civil Affairs heat station station automation design and implementation of the system, the implementation is completed, the station will achieve primary network and the secondary network of temperature, pressure, flow, heat and other data of remote monitoring. While achieving a net flow of heat, a backwater temperature, secondary water temperature, secondary supply and return water temperature difference of PID control. Due to the large number of sites, a large amount of data communication control system, the control loops more, the stability of communication networks and remote control systems, reliability, efficiency high demands. In addition, the control system of Siemens Smart 700 touch screen interface for the field, which constitute the site independent monitoring system that can run and save run parameters in place in the case from the remote monitoring system.This design highlights include automatic control system architecture and program design; automatic control functions. And a heat transfer station operating data for the heating season last collection of the automatic control system is analyzed by the size of the heating heat consumption can be seen the effect of the automatic control system of energy saving. |
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