Automatic Control And Networked Measurement Of Heat Supply Network Energy Conservation System

This subject aims on the relevant problems arisen in the existing central heating system, through the study on the central heating and heat metering methods, a set of heat supply network energy conservation system has been designed. It mainly makes a detailed study on the networked measuring and control system in the heat supply network energy conservation system, by using the temperature area methods to make analysis and calculation on the actual heat consumption of each heat consumer, and it also makes supervision and management on the heat consumption of the buildings.MC9S08DZ60 chip is adopted by the room temperature controller as the main control chip, the temperature acquisition circuit, wireless communication circuit module, LCD circuit and keying circuit etc have been designed, which can set up the indoor temperature, measuring the actual indoor temperature, calculate the relative heat of the heat consumer and make wireless communication with the on-off actuator.The on-off actuator also adopts the MC9S08DZ60 chip as the main control chip,which mainly designs the electric valve drive circuit, wireless communication circuit module and RS-485 communication circuit, the wireless communication with the room temperature controller can be achieved, and after the comparison the actual temperature transferred by the room temperature controller with the setting temperature, the control on the on and off of the electric heating valve can be achieved, and the communication with the data concentrator can be achieved.The design of the data concentrator adopts the STM32F103 chip as the main control chip, the communication between the GPRS module and the monitoring and management center is achieved through the upper computer, the communication between the total heat meter and each on-off actuator is achieved by the RS-485. The data concentrator adopts the actual heat consumption uploaded by the total heat meter and the relative heat value uploaded by each on-off actuator, then through calculation,the actual heat consumption of each heat consumer can be obtained, and the relevant calculated data shall be stored in SD card and uploaded to the upper computer, and the demands of the upper computer can be feed backed to the temperature control order of each user end so as to be sent to the room temperature controller and the on-off actuator.The subject combines the actual condition of the current central heat supply,through the temperature area method, the actual heat consumed by each user shall be measured, and the energy conservation control of the central heat supply of each building shall be achieved, and the measurement and supervision of the heat supply condition of the heat consumer shall be achieved accurately and in real time. As the new energy conservation tool generated with the development of the society, heat supply network energy conservation system caters to the energy conservation policy implemented in our nation currently, and it can achieve better economic benefits and social benefits.