Improvement of the vibration of the reciprocating air compressor outlet pipeline Xue Fulian Shenyang Liaozhong County Chemical General Plant, Liaoning Liaozhong 0200 good effect. The 1刖5 reciprocating air compressor is the key equipment for the oxygen supply system. However, the vibration of the compressor outlet pipeline often leads to fatigue damage of the pipeline and the bracket, and even affects the safe production of the device. The main causes of pipeline vibration are the following aspects: 1 The resonance of the system is caused by unreasonable design or on-site piping. The stability of the piping structure is not good or the stability of the support point is poor. No vibration reduction measures were taken between the unit piping and the pipe rack. Affected by the vibration of the unit's body. In this paper, the reasons for the vibration of the reciprocating air compressor outlet pipeline are briefly. 2 Unit Overview Our factory uses the 51 1650 oil-free reciprocating air compressor produced by Shenyang Compressor Factory, which is mainly used for 150m3h oxygen production equipment of our factory. In it, it compresses the air from atmospheric pressure to 3.43, presses it, and sends it to the air separation tower to produce oxygen. The air compressor is a stage compression, and the pipe system is simple. Intercooling filter 3.1 Calculation stage outlet pipeline The gas column resonance tube long pipeline can be regarded as the closed end, and the other end is the beginning fex excitation main frequency excitation main frequency. Rock drilling machine pneumatic tools, 2010425 n simple harmonic order 4 = 1 called the main harmonic i per breath in the intake or exhaust number of gas velocity in the pipeline, 417.2ms step resonance tube length actual pipe length 91 is not in the range of the length of the resonance tube Inside. Thus, the vibration of the stage outlet line is not caused by resonance. 3.2 On-site observation of the vibration of the pipeline The cover of the trench was uncovered. As a result, it was found that there was only a rigid support on the longer outlet line, and the unit body did not vibrate. It can be concluded that the main cause of the vibration of the stage outlet pipeline is that the pipeline support and the fixed structure are unreasonable. 4 Improvement measures increase the number of support points, and support and fix the long straight pipe section and the pipeline bend. Increasing the vibration between the pipeline and the support. 5 Conclusion The vibration of the outlet pipe is mainly caused by the unreasonable support of the pipeline and the fixed structure. After taking corresponding improvement measures, Li Donglin, the air compressor-level export pipeline, was fundamentally eliminated. Chemical machinery. Beijing Chemical Industry Press, 19. Ma Min. Piston compressor airflow pulsation and pipeline vibration Xi'an Xi'an Jiaotong University Press, 2003. Zhang Chunxin. Compressor process calculation. Beijing Petroleum Industry Press, 1996. Rock drilling machine pneumatic tools, 20104
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