Research and application of PID constant pressure water supply for washing machine water efficiency detection equipment based on Siemens PLC

Based on GB 12021.4-2013 electric washing machine energy efficiency and water efficiency limit value and grade, it is required to measure the water consumption of the washing machine in the whole process of specific washing. In view of the above, this paper studies the application of PID constant pressure water supply technology in washing machine water efficiency detection equipment, and proposes a Siemens 200 smart based on the research and analysis of the needs and background of washing machine water efficiency detection, and combined with the problems existing in the current detection of washing machine water efficiency. The design of PID constant pressure water supply for washing machine water efficiency detection system in PLC proposes a method to use PID constant pressure water supply technology to improve the performance and accuracy of water efficiency detection equipment. It includes the design of system hardware, the design of control logic, the detailed analysis of the process and control requirements of the detection and control system, and the control and PID monitoring and self-adjustment of PLC are realized through the final online debugging. The use value of the detection system is large, and it has a good detection application prospect.