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| Analysis and Treatment for Abnormal Failure of Connecting Bolt on Compressor Unit |
| Received:February 02, 2021 Revised:March 17, 2021 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2021.07.014 |
| KeyWord:compressor unit bolt fracture nozzle failure treatment |
| Author | Institution |
| YU Gui-cheng |
Gas Storage Management Office of Southwest Oil and Gasfield Company-Chongqing Gas District, Chongqing , China |
| SONG Wei |
Chongqing University, Chongqing , China |
| LIANG Tian-you |
Chongqing University, Chongqing , China |
| TANG Ding |
Gas Storage Management Office of Southwest Oil and Gasfield Company-Chongqing Gas District, Chongqing , China |
| LI Ming |
Gas Storage Management Office of Southwest Oil and Gasfield Company-Chongqing Gas District, Chongqing , China |
| HAN Hua-ming |
Southwest Oil and Gasfield Company-Chongqing Gas District, Chongqing , China |
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| Abstract: |
| To solve the problem that the attachment bolts and nozzle of air intake buffer tanks may fail in the reciprocating compressors. According to the mechanical structure and production conditions of the compressor, through the test and analysis of air pulsation and mechanical vibration, combined with the simulation analysis, the air pulsation suppression measures and mechanical vibration control measures are proposed. The main reasons for the fracture of the connecting bolt and the failure of the nozzle of the primary air intake buffer tank are as follows:The rigidity of the support structure of the compressor unit is not enough, and the horizontal vibration of the air intake buffer tank and the cylinder is caused by the alternating air flow force in the cylinder. The control design of unit’s air pulsation is not reasonable, which leads that the unbalance force caused by pulse is too large. or the analysis of the failure causes, the rectification is proposed from the aspects of air flow pulsation control and mechanical vibration control. The analysis shows that the control scheme optimizes the stress state of the flange bolt on the nozzle, reduces the vibration intensity, and achieves the control purpose. |
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