木糖醇生产中氢气压缩机循环变频恒压控制

氢气压缩机是木糖醇生产过程中的关键设备,其出口气体压力能否稳定关系到产品的质量。介绍了以变频器和PLC技术实现氢气压缩机出口气体压力稳定的控制系统,该系统取代原来调节副线的控制方法,同时解决了变频氢气压缩机与管路共振问题,具有无扰切换,自检、联锁保护措施。经运行证实,该系统控制可靠,节能降耗效果明显,提高了产品质量。

Pressure-preserving control of reciprocating compressor with transducer and PLC in the manufacture of xylosic alcohol

Reciprocating compressor is one of the most important equipmemt in xylosic alcohol manufancture process.The stablity of output gas pressure influences the quality of the product greatly.In this paper it mainly disscusses the control of output gas pressure with the technology of transducer and programmable logic controller,instead of bypass regulation.At the same time the problem of resonance between reciprocating compressor and pipeline can be solved.The whole system can realize switch with no interference, self-detection and interlocking protection.From the running of the system it can be seen that it has the charactor of control stablity,energy saving and the system improved the product quality greatly.