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工艺气冷却器环焊缝开裂原因分析
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作者 戚政武 蔡勤 《化工机械》 CAS 2016年第2期239-243,共5页
采用了渗透检测、化学成分分析、硬度测试及金相分析等方法对工艺气冷却器的横向裂纹进行分析,结果表明,该裂纹呈脆性断裂,最前端尖细,边缘平直,呈人字形态发展,裂纹在扩展过程中呈单道发展,不时带有枝叉状的二次裂纹,是由多条短裂纹间... 采用了渗透检测、化学成分分析、硬度测试及金相分析等方法对工艺气冷却器的横向裂纹进行分析,结果表明,该裂纹呈脆性断裂,最前端尖细,边缘平直,呈人字形态发展,裂纹在扩展过程中呈单道发展,不时带有枝叉状的二次裂纹,是由多条短裂纹间断串联成长的裂纹。从裂纹的宏观、微观形态、产生环境、时机及走向等可以判断该横向裂纹是由氢引起的延迟裂纹,应力和扩散氢是促使裂纹产生的两个主要原因,并针对该诱因提出了预防措施。 展开更多
关键词 工艺气冷却器 横向裂纹扩散氢应力 延迟裂纹
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6万t/a WSA硫酸工程工艺冷却的焊接施工
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作者 张朝晖 邹卫清 《焊接技术》 2001年第z1期63-,共1页
关键词 工艺气冷却器 翅片管 焊接 质量 探伤 施工
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Analysis of Using the M-cycle Regenerative-Humidification Process on a Gas Turbine 被引量:1
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作者 Peter Jenkins Martin Cerza Mohammad A1 Saaid 《Journal of Energy and Power Engineering》 2014年第11期1824-1837,共14页
This investigation focused on the analysis of using the M-cycle (Maisotsenko cycle) to improve the efficiency of a gas turbine engine. By combining the M-cycle with an open Brayton cycle, a new cycle, is known as th... This investigation focused on the analysis of using the M-cycle (Maisotsenko cycle) to improve the efficiency of a gas turbine engine. By combining the M-cycle with an open Brayton cycle, a new cycle, is known as the MCTC (Maisotsenko combustion turbine cycle), was formed. The MCTC used an indirect evaporative air cooler as a saturator with a gas turbine engine. The saturator was applied on the side of the turbine exhaust (M-cycle#2) in the analysis. The analysis included calculations and the development of an EES (engineering equation solver) code to model the MCTC system performance. The resulting performance curves were graphed to show the effects of several parameters on the thermal efficiency and net power output of the gas turbine engine. The models were also compared with actual experimental test that results from a gas turbine engine. Conclusions and discussions of results are also given. 展开更多
关键词 Gas turbine Brayton cycle evaporative cooling.
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