The pre-stressed technology has good prospect in development and application for it may greatly reduce the thermal stress of fixed tube-sheet exchanger.
预应力技术可以大大降低固定管板换热器的温差应力，因此有良好的应用前景。
Equipment safely is threatened with the thermal stress created by fixed-tube sheet exchanger for its structure. Causes of thermal stress have been analyzed and the countermeasures proposed.
由于结构原因固定管板式换热器所产生的温差应力对设备的安全构成很大威胁。介绍了温差应力产生的原因及降低温差应力的措施。
Practice proved that technical reconstruction can prevent effectively the crack of exchanger tube sheet, and prolonged the service life of exchanger.
实践证明，该技术改造能有效的防止换热器管板的开裂，延长了换热器的使用寿命。
In this paper, a few common joint ways of heat exchanger tube-to-tube sheet are analyzed and compared on manufacture, apply and repair.
文章对换热器中管子和管板的几种常用联接方式从制造、使用及维修的角度进行了分析、比较。
When plate heat exchangers work at the pressure of cold and hot medium, the exchanger thermal sheet spaces, the fixed active compressing plates produce deformation of bulging.
在受冷热介质压力作用的工作状态下，板式换热器换热板片、固定和活动压紧板间将产生鼓胀变形。
Finite element analysis is adopted to calculate secondary quench exchanger tube sheet of ethylene plant.
对乙烯装置第二急冷锅炉的管板进行了有限元分析。
The steam leakage was occurred on the welding zone of the tube sheet of the austenitic stainless steel heat exchanger.
在奥氏体不锈钢制再沸器的上管板与壳程筒体焊接的管板一侧发生蒸气泄漏。
The pretension of bolts directly affects the deformation form of the deformation of bulging, and the sealing condition between the exchanger thermal sheet Spaces.
而螺栓的预紧力直接影响这种鼓胀变形的形式和板片间的密封状态。
Abstruct: The connection mode and welding technological process between tube and tube sheet, tube sheet and shell of low temperature tubular heat exchanger are discussed.
探讨了低温管壳式换热器的管子与管板、管板与壳体的连接方式及焊接工艺。
Abstract: Thermal stress analyses of fixed tube-sheet heat exchanger are very complex and difficult.
摘要：固定管板式换热器的热应力分析具有相当的复杂性。
Abstract: Thermal stress analyses of fixed tube-sheet heat exchanger are very complex and difficult.
摘要：固定管板式换热器的热应力分析具有相当的复杂性。
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