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高压加热器换热管管口泄漏及氦质谱技术在检漏中的应用 被引量:4
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作者 张维科 李博 《热力发电》 CAS 北大核心 2010年第2期98-100,共3页
分析了在役U形管式高压加热器(高加)换热管管口容易泄漏的原因,并对管口泄漏检查常规方法的优缺点进行了评价。通过实例,介绍了氦质谱检漏技术在高加换热管管口泄漏检查上的应用。应用表明,氦质谱检漏技术能够很好地解决高加换热管管口... 分析了在役U形管式高压加热器(高加)换热管管口容易泄漏的原因,并对管口泄漏检查常规方法的优缺点进行了评价。通过实例,介绍了氦质谱检漏技术在高加换热管管口泄漏检查上的应用。应用表明,氦质谱检漏技术能够很好地解决高加换热管管口泄漏的查漏难题,具有快速、准确的特点,并且避免了对高加换热管的漏堵和误堵,可提高高加运行的安全性和可靠性。 展开更多
关键词 高压加热器 U型换热管 管口泄漏 氦质谱 检漏技术 远场涡流 探伤
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Evaluation of three-incision esophagectomy:Review of 1226 patients
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作者 Yusheng Shu Qianbing Miao Weiping Shi Hongcan Shi Shichun Lu Kang Wang 《The Chinese-German Journal of Clinical Oncology》 CAS 2010年第9期507-510,共4页
Objective:The aim of our study was to evaluate the clinical effect and the prospect of the three-incision (right thoracotomy, midline laparotomy and left cervical incisions) esophagectomy for the treatment of esophage... Objective:The aim of our study was to evaluate the clinical effect and the prospect of the three-incision (right thoracotomy, midline laparotomy and left cervical incisions) esophagectomy for the treatment of esophageal carcinoma.Meth-ods:We reviewed our experience with 1226 patients undergoing three-incision esophagectomy for middle and upper esopha-geal carcinoma.Results:Anastomotic leak rates were determined for the entire group.The overall leak rate was 8.5% (104 patients).Overall hospital mortality was 0.24% (3 patients).No patient died as a result of anastomotic leakage.Conclusion:The three-incision technique can radically remove carcinoma and perform a complete lymphadenectomy.Although the cervical anastomotic leak rate is slightly high, the management of this complication is relatively easy and the satisfactory results can be achieved. 展开更多
关键词 esophageal carcinoma three-incision esophagectomy cervical anastomosis
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