CAJ | 학술논문

整体式天然气压缩机在石油化工领域广泛应用，压缩机的正常工作对安全生产具有重要意义。为了有效诊断整体式压缩机气阀部件的故障，采用了 Daubechies 小波基函数对 ZTY470型整体式天然气压缩机气阀振动信号的分解重构原理，详细介绍了以振动信号的能量为故障特征的故障诊断过程。对气阀阀片断裂和弹簧断裂的故障振动信号进行了小波包分析，并与正常工作时的信号进行了对比。实验表明该方法能准确的进行故障诊断和故障定位，证明了对整体式天然气压缩机气阀故障诊断的有效性。
정체식천연기압축궤재석유화공영역엄범응용，압축궤적정상공작대안전생산구유중요의의。위료유효진단정체식압축궤기벌부건적고장，채용료 Daubechies 소파기함수대 ZTY470형정체식천연기압축궤기벌진동신호적분해중구원리，상세개소료이진동신호적능량위고장특정적고장진단과정。대기벌벌편단렬화탄황단렬적고장진동신호진행료소파포분석，병여정상공작시적신호진행료대비。실험표명해방법능준학적진행고장진단화고장정위，증명료대정체식천연기압축궤기벌고장진단적유효성。
The integral natural gas compressor is widely used in the petrochemical industry, the normal operation of the compressor has an important effect on safety production. In order to improve the integral compressor valve fault diagnosis problem, on the basis of decomposition and reconstruction prin-ciple of Daubechies wavelet function of ZTY470 type integral type natural gas compressor vibration sig-nals, introduces the fault diagnosis process to the energy of vibration signal as fault feature. The fault vi-bration signal of gas valve and spring fracture is analyzed with wavelet packets, and compared with the signal during the normal operation. Experiments show that this method can accurately carry out fault diag-nosis and fault location, proved the validity of integral type natural gas compressor valve fault diagnosis.