超高压加工设备安全的冗余设计

Safety Redundancy Design for Ultra-high Pressure Machining Equipment

400MPa以上的超高压设备的不仅需要足够的强度设计,还要通过液压系统及电气控制系统的安全保护措施,保证设备运行的安全可靠性,特别是要保证加工食品的质量安全,因此设备及系统的冗余设计非常必要,本文介绍了超高压设备电气液压控制系统的双溢流安全阀、压力比对控制、位置控制及互锁、运动缓冲及泄压缓冲、能量回收等保证设备安全可靠的技术措施及程序设计。

The equipment above 400MPa not only needs to be designed with sufficient strength, but also needs to be protected by hydraulic systems and electrical control systems to ensure the safety and reliability of the equipment’s operation, especially to ensure the quality and safety of processed foods. So the redundant design of the equipment and the system is very necessary, This paper introduces the technical measures and program design of double overflow relief valve, pressure ratio control, position control and interlocking, movement buffer and discharge buffer, energy recovery, etc..