Experimental investigation of pressure distribution between the piston rings and its formation in reciprocating compressors
Experimental investigation of pressure distribution between the piston rings and its formation in reciprocating compressors
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往复式压缩机活塞环间压力分布及其形成的实验研究
DOI：
10.1177/0954406212438151
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发表时间：
2012-02
影响因子：
2
通讯作者：
Peng Xueyuan
中科院分区：
文献类型：
--
作者：
Feng J ianmei;Ding Liqing;Yang Donghui;Peng Xueyuan
压力分布严重不均匀是往复式压缩机活塞环过早失效的根本原因。建立了试验平台，研究了动压分布及其形成过程，揭示了压力分布不均匀的根本原因。实验结果表明，在各种试验条件下，各环之间的压力分布都存在明显的不均匀性，第一环的压力差大于总压差的75%。进一步分析实验数据表明，当吸气压力不高于曲轴箱内压力时，第一个活塞环在一个周期内与活塞环槽的接触位置分别以63°和170°左右的角度切换两次，其余活塞环分别以90°和270°左右的角度切换接触位置。当吸入压力高于曲轴箱压力时，第一个环仍在一个周期内两次切换其接触位置，分别在曲柄角约47°和195°处，但其他环不再改变其位置。实验结果还表明，不同环上压差的形成不是同步的，这表明在压差达到临界值之前，环不能工作。
The severe non-uniformity of pressure distribution has been suggested as the essential reason for the premature failure of piston rings in reciprocating compressors. A test rig was built to investigate the dynamic pressure distribution and its formation process, so that the root cause of the non-uniform pressure distribution could be revealed. The experimental results showed that the pressure distribution between the rings was always significantly non-uniform under various test conditions and the first ring bore more than 75% of the total pressure difference. Further analysis of the experimental data indicated that when the suction pressure was not higher than that in the crank case, the first piston ring switched its contact position with the piston ring groove twice in one cycle, at the angles of around 63° and 170°, respectively, while the others switched contact positions at about 90° and 270°. If the suction pressure was higher than the pressure in the crank case, the first ring still switched its contact position twice in a cycle, at the crank angle of about 47° and 195°, respectively, but the other rings no longer changed their positions. The experimental results also demonstrated that the formation of pressure difference on different rings was not synchronous, which indicated that the rings could not work until their pressure difference reached a critical value.
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DOI：
--
发表时间：
1990
期刊：
--
影响因子：
--
作者：
V. I. Milovanano;V. A. Budanov
通讯作者：
V. I. Milovanano;V. A. Budanov
影响因子：
1.6
作者：
I. Cho;Il-Hyun Beak;Jae-Cheon Jo;Ju-mi Park;Seok-Hyung Oh;Jae-Youn Jung
通讯作者：
I. Cho;Il-Hyun Beak;Jae-Cheon Jo;Ju-mi Park;Seok-Hyung Oh;Jae-Youn Jung
影响因子：
5
作者：
C. Kowandy;C. Richard;Y. Chen
通讯作者：
C. Kowandy;C. Richard;Y. Chen
影响因子：
5
作者：
Staffan Johansson;C. Frennfelt;A. Killinger;P. Nilsson;R. Ohlsson;B. Rosén
通讯作者：
Staffan Johansson;C. Frennfelt;A. Killinger;P. Nilsson;R. Ohlsson;B. Rosén
DOI：
10.1177/0954406211403968
发表时间：
2011-09
期刊：
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
影响因子：
--
作者：
B. Yang;Y. Zhao
通讯作者：
B. Yang;Y. Zhao