承压设备水压试验自动控制装置设计与实现

针对当前承压设备水压试验手动加压过程难以控制和采用肉眼直接观察压力表判断水压试验合格性存在误差的问题，提出一种承压设备水压试验自动控制装置设计方案，并实现了装置结构和控制系统。该自动控制装置结构设计包含工作台结构设计、加压管路设计、泄压管路设计和其他保护设计；以PLC、变频器和比例阀为硬件核心，结合模糊PID控制器实现对水压试验过程控制；利用开发的上位机软件实现水压试验设备的人机交互；进行水压试验自动控制装置性能测试。结果表明：该装置能较好地实现水压试验全过程控制和合格性判定，具有对试验过程录像、试验数据实时保存等功能，且可追溯水压试验过程。

Design and Realization of Automatic Control Device for Hydraulic Test of Pressure Equipment

In view of the difficulties in controlling the manual pressurization process of hydraulic pressure test of pressure equipment and the errors in judging the eligibility of hydraulic pressure test by direct observation of pressure gauge with naked eyes,a design scheme of automatic control device for hydraulic pressure test of pressure equipment was proposed,and the device structure and control system were realized.The structure design of the automatic control device included the work table structure design,pressure pipeline design,pressure relief pipeline design and other protection design; the PLC,frequency converter and proportional valve were used as the hardware core,the control of hydraulic test process was realized by combining with fuzzy PID controller; the human-computer interaction of hydraulic test equipment was realized; the performance test of the automatic control device for the hydraulic test was carried out.The results show that by using the device,the whole process control and qualification determination of the hydraulic test can be better realized,and the device has the functions of video recording and real-time saving of the test data,and the hydraulic test process can be traced.