1) high-low heat exchangers
高低压换热器
1.
By the use of gravity heat pipe to replace of high-low heat exchangers the concept,carried out a feasibility analysis.
针对目前矿井空调系统投资大、效率低的问题,提出用重力热管替代高低压换热器的思路,并进行了可行性分析。
3) tubeshell heat exchanger
管壳式高低压换热器
1.
This paper demonstrates the studying process,working principle,using condition,designing stardards,constructure characteristic and experiment information of the tubeshell heat exchanger used in mine aircondition system.
介绍了矿用管壳式高低压换热器的研制过程及设备的工作原理、使用条件、设计指标、结构特征、实验等情况。
4) high-pressure heat exchanger
高压换热器
1.
Ever since November, 2005, the high-pressure heat exchanger in No.
茂名分公司I套柴油加氢装置2005年11月份以来高压换热器管束因铵盐结晶造成换热效率下降,管程出口温度下降,反应系统压力降逐步上升,循环氢量明显下降,反应氢油比不足,循环氢压缩机喘振。
2.
(1) Washing the deposited oil in high-pressure heat exchanger pipeline with demineralized water is more effective than blowing it with hydrogen or steam.
介绍了燕山分公司炼油厂中压加氢裂化装置高压换热系统及加热炉改造时开停工步骤的优化措施:①用软化水冲洗高压换热器区管道设备内的存油比用氢气或蒸汽吹扫可以起到更好的效果;②针对装置自身的特点确定设备脱氢条件既能保证脱氢质量又能节约脱氢时间;③在催化剂不卸出的情况下,通过增设临时管线并将加热炉烘炉、高压换热系统和加热炉炉管烘干与反应系统气密一起进行可收到既保护催化剂又节约时间的效果。
3.
On the basis of technical revamping of China's first domestically manufactured hydrocracking unit to process high-sulfur feed, the corrosion mechanisms and corrosion rate of existing high-pressure heat exchanger in high-sulfur environment were studied and theoretical basis of continuous online service of the heat exchangers was presented.
结合首套国产化加氢裂化装置的高硫改造,探讨了现有高压换热器在高硫环境下的腐蚀机理与速率,提出了可以继续服役的理论依据,并介绍了高硫改造后的生产情况以及高压换热器的全面检验、器壁保护膜的分析研究等内容。
5) high pressure heat exchanger
高压换热器
1.
Analysis of the seals used in high pressure heat exchanger on hydrogenation plant;
加氢装置高压换热器密封的分析比较
2.
The high pressure heat exchangers in the 5 600 b/d hydrocraker in the refinery of PetroChina Daqing Petrochemical Co.
针对大庆石化分公司炼油厂260 kt/a加氢裂化装置高压换热器频繁内漏的状况,深入分析造成内漏的原因,主要有:(1)螺栓预紧力不够;(2)温度变化;(3)压力升降。
补充资料：冲击高电压测量(见高电压测量)
冲击高电压测量(见高电压测量)
measurement of high impulse voltages
ch。门引才g。。dion丫日cel}o口g冲击高电压测量(rneasurement ofhighimpulsevoltages)见高电压测量。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条