水利水电科技进展
水利水電科技進展
수이수전과기진전
ADVANCES IN SCIENCE AND TECHNOLOGY OF WATER RESOURCES
2015年
3期
114-118
,共5页
海底输水管道%气阻%水击%空气罐
海底輸水管道%氣阻%水擊%空氣罐
해저수수관도%기조%수격%공기관
submarine pipeline%air lock%water hammer%air tank
针对海底输水管道工程中存在的对输水目标不利的驼峰气阻和水击问题，引入气泡理论和流态分析方法计算分析跨海输水管道中驼峰气阻的形成过程，采用特征线法建立输水管道中加压泵事故断电引发的水击计算模型，介绍了海底输水管道中的水击防护措施，指出空气罐在海底输水系统中有特殊的优势，和管道一体化后可实现海底封闭式供水，描述了空气罐的数学模型。认为海底管线布置应尽量保证地形平缓，应充分重视空气罐防护技术，它们是实现海底输水管道安全运行的关键。
針對海底輸水管道工程中存在的對輸水目標不利的駝峰氣阻和水擊問題，引入氣泡理論和流態分析方法計算分析跨海輸水管道中駝峰氣阻的形成過程，採用特徵線法建立輸水管道中加壓泵事故斷電引髮的水擊計算模型，介紹瞭海底輸水管道中的水擊防護措施，指齣空氣罐在海底輸水繫統中有特殊的優勢，和管道一體化後可實現海底封閉式供水，描述瞭空氣罐的數學模型。認為海底管線佈置應儘量保證地形平緩，應充分重視空氣罐防護技術，它們是實現海底輸水管道安全運行的關鍵。
침대해저수수관도공정중존재적대수수목표불리적타봉기조화수격문제，인입기포이론화류태분석방법계산분석과해수수관도중타봉기조적형성과정，채용특정선법건립수수관도중가압빙사고단전인발적수격계산모형，개소료해저수수관도중적수격방호조시，지출공기관재해저수수계통중유특수적우세，화관도일체화후가실현해저봉폐식공수，묘술료공기관적수학모형。인위해저관선포치응진량보증지형평완，응충분중시공기관방호기술，타문시실현해저수수관도안전운행적관건。
The existing problems of hump air lock and water hammer in the projects of submarine water supply pipeline are harmful to the water supply target. Therefore, bubble theory and flow method are used to analyze the cause of hump air lock. By using method of characteristics, we establish a water hammer model caused by pump power failure in water supply pipeline, and introduce the protective measures against water hammer in submarine water supply pipeline. In addition, we point out that the integration of air tank and pipeline is possible for the special advantage of air tank in submarine water supply system. Furthermore, we introduce the mathematical model of air tank. Likewise, we observe that it is mandatory to ensure the submarine pipeline layouts on smooth terrain and pay full attention to the air tank protect technology, which are the keys to achieve safe operation of submarine water supply pipeline.
