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研究生:黃銘崧
研究生(外文):Huang, Ming-Sung
論文名稱:應用BIM資料庫於隔離不全管路與T型管路之熱疲勞安全評估
論文名稱(外文):Applications of BIM Database On Thermal Fatigue Evaluation for Un-isolable and Mixing-Tee Pipeline
指導教授:范德威
指導教授(外文):Fan, Te-Wei
學位類別:碩士
校院名稱:中華大學
系所名稱:土木工程學系碩士班
學門:工程學門
學類:土木工程學類
論文種類:學術論文
論文出版年:2015
畢業學年度:103
語文別:中文
論文頁數:80
中文關鍵詞:熱疲勞管路隔離不全T型管建築資訊模型
外文關鍵詞:Thermal FatigueUn-isolable PipingMixing-TeeBIM
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國外近年因管路隔離不全,導致管路中冷、熱水混合造成熱疲勞現象甚而龜裂的事件頻傳,雖國內尚無類似洩漏案例,但因建廠之系統設計皆引進國外技術,為避免國內電廠管路發生類似之熱疲勞問題,因此需提前進行系統評估。
設計階段所未能考慮到之實際運轉問題,應進行檢測評估,甚而於評估後必要時以實施補強,在國外相同屬性的電廠曾發生多個管路閥門洩漏的案例,致使EPRI針對管路隔離不全導致冷熱水混合情形之提出特別評估,EPRI所發布之技術報告,針對電廠管路隔離不全與T型管路熱疲勞問題進行安全評估,除可評定管路之熱疲勞現況及應進行檢測之週期,另在電廠申請延役時提供管路安全評估的相應方案。
本文使用相關技術報告之篩選準則,同時應用MRP-170計算程式,輸入管幾何條件、溫度、壓力、流量,以計算管路發生溫度差及溫度歷程等造成熱疲勞之條件是否存在,再對可能產生熱疲勞的管路做疲勞因子計算,本研究中同時訪查電廠人員實際操作的經驗,補齊圖面未能提供之資料,並以設計參數和實際運轉參數進行比對,作為後續電廠運轉之評估依據。
因應建築資訊模型(Building Information Modeling, BIM)新技術的產生,應用其資料庫的特性,建立需關注範圍內之管路模型,可達到視覺化管理之功能,同時透過管路模型資料庫之建立,能提供使用者掌握管路設計與現況,以避免大量圖資蒐尋之困難,將模型與計算程式連結則可使資料庫之附加價值更趨完整,透過網路可將模型資訊分享給不同的專案擁有者,促使共享資訊與傳遞資訊之同步化。





Crack events caused by thermal fatigue due to leak in unisolable portions of stagnant systems, or cold and hot water mixing in piping were recorded worldwide during the past years. Although there were no domestic case been reported, It is needed to perform system evaluation in advance to prevent similar events due to the same system design.
Because of the difference of operating conditions from design conditions, the on-site checking and assessment should be performed to evaluate the necessaries for reinforcement. Some foreign power plants have been reported the pipeline valve leakage which invoked EPRI to propose evaluation guideline to assess the possible thermal fatigue caused by hot and cold water mixing in pipelines. The technical reports announced by EPRI are to perform the safety assessment for the issues of thermal fatigue cracks that may potentially occurred at locations in pipe lines due to swirl penetration or valve in-leakage in normally stagnant non-isolable piping systems.
This paper presents the applications of screening criteria and computing process from MRP-170, by inputting pipe geometries, temperature, pressure, and flow rate to calculate the existence of thermal fatigue conditions like temperature differences and their operating history in pipe lines. Then the cumulated fatigue factors of possible thermal fatigue locations were calculated. To replenish the data that could not be shown in drawing and to compare the design and operating parameters, this research also collects actual operating parameters and experience by visit to the power plant personnel. Suggestions were proposed as the basis of future assessment for plant operation.
New technologies from building information modeling (BIM) was applied in this research to establish the piping models and their database. To provide functions for management of piping design and usage condition, the visual management is achieved to prevent difficulties from data and drawing surveying. The BIM model and related calculation program linking enable the value-added of the database, and also simplify the information sharing and synchronization of data transfer between project owners through the Internet.

摘 要 i
ABSTRACT ii
致謝 iii
目錄 iv
表 目 錄 vi
圖 目 錄 vii
第一章 前言 1
1.1 研究背景與動機 1
1.2 研究目的 1
1.3研究範圍 2
1.4研究流程 2
1.5論文架構 3
第二章 文獻回顧 4
2.1電廠案例研究 4
2.1.1電廠隔離不全管路熱疲勞之案例 4
2.1.2電廠T型管路熱疲勞之案例 4
2.2 隔離不全管路熱疲勞篩選與評估方法 5
2.2.1管路篩選法則 5
2.2.2管路評估準則 6
2.3建築資訊模型Building Information Modeling (BIM) 11
第三章 電廠隔離不全管路熱疲勞篩選與評估 14
3.1電廠系統說明 14
3.1.1反應爐循環水系統 14
3.1.2注水系統 17
3.2分析條件說明 20
3.3管路篩選結果 20
3.4管路熱循環溫度歷程分析 35
3.4.1支管6”-RCIC-5A/55A 35
3.4.2支管10”-RHR-6V/56V 39
3.4.3支管12”-FW-22S/72S 42
3.4.4支管12”-FW-22V/72V 46
3.4.5支管10”-FW-22AR/72AR 49
3.5 DH 管路累積使用疲勞因子評估 52
3.5.1是否適用一般性評估流程檢查 52
第四章 電廠冷熱混合T型管熱疲勞篩選與評估 61
4.1冷熱混合T型管熱疲勞篩選評估準則 61
4.1.1餘熱移除系統T型管路熱疲勞評估 66
4.1.2瀘水淨化系統T型管路熱疲勞評估 67
4.1.3爐心隔離冷卻系統T型管路熱疲勞評估 68
4.2 T型管路實際運轉參數之有效時間計算 69
4.2.1RHR熱交換器進出口管路6K-6AN有效年限計算 69
4.2.2RHR熱交換器進出口管路6Q-6AP有效年限計算 70
4.2.3RWCU回到注水管路22R-2M 溫度歷程有效年限計算 70
4.2.4RWCU回到注水管路22R-2P溫度歷程 71
第五章 管路資料庫應用 72
5.1管路模型資料建立 72
5.2 模型展示與應用 73
第六章 結論與建議 76
6.1結論 76
6.2 未來研究方向 77
參考文獻 78

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