月刊
ISSN 1000-7229
CN 11-2583/TM
电力建设 ›› 2013, Vol. 34 ›› Issue (4): 71-73.
• 发电技术 • 上一篇 下一篇
冯灯乐,戴峰,金勇
出版日期:
作者简介:
FENG Dengle, DAI Feng,JIN Yong
Online:
摘要:
某大型火电机组的高压加热器(高加)正常疏水管路布置不合理,多次出现疏水管路振动,危及设备安全。根据高加正常疏水管路的实际布置位置进行了改造,机组启动初期利用静压差和凝汽器的真空排除正常疏水管路的积水,彻底消除了管道振动,杜绝因振动造成的设备损坏事故。新建机组可以按照无低点、无U型管的设计方案进行优化设计,可以从根本上消除因级间差压小造成的管道振动。
关键词: 高压加热器, 疏水管道振动, 改造技术
Abstract:
The arrangement of normal drain pipeline in high pressure (HP) heater in a large thermal power unit is unreasonable, which results the vibration of drain pipeline occurred repeatedly and endangers the safety of equipment. Some retrofits are carried out for the normal drain pipeline according to its arrangement in HP heater, such as excluding the water in normal drain pipe by using static pressure difference and condenser vacuum at the initial period of units’ start-up, which could completely eliminate the pipeline vibration, as well as prevent the equipment damage accident caused by vibration. New units could be optimized designed without low-point and U-tube, which could radically eliminate the pipeline vibration caused by small interstage differential pressure.
Key words: high pressure heater, vibration of drain pipeline, retrofit technology
冯灯乐,戴峰,金勇. 消除高压加热器正常疏水管道振动的改造技术[J]. 电力建设, 2013, 34(4): 71-73.
FENG Dengle, DAI Feng,JIN Yong. Retrofit of Vibration Elimination for Normal Drain Pipeline in HP Heater[J]. ELECTRIC POWER CONSTRUCTION, 2013, 34(4): 71-73.
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