本文選題：高海拔 + 外絕緣　； 參考：《廣西大學》2014年碩士論文

【摘要】：青海鹽湖集團綜合利用項目二期供熱中心工程,是為中國最大的鉀肥生產基地供電的電廠,位于青海省格爾木市察爾汗鹽湖地區(qū),廠址海拔高、鹽污重,為保證電廠能長期在這種特殊環(huán)境中安全可靠地運行,必須對設備的外絕緣水平及防腐能力提出更高的要求。電氣設計目的和關鍵在于,對設備的外絕緣水平進行海拔修正,選擇出絕緣匹配的設備,設備和材料采取適合的抗腐蝕措施等。為達到該設計目的,調查了該地區(qū)電氣設備的運行情況及存在的問題,分析了多個現(xiàn)行規(guī)程規(guī)范的計算方法,用電氣設備的耐壓試驗數(shù)據(jù)進行驗證對比,參考成熟品牌電氣設備的技術參數(shù)和選型建議,結合技術及經濟因素進行計算分析和結果對比。經過驗證對比,選擇出合適的海拔修正系數(shù),確認各電壓等級的各類電氣設備的耐受電壓、電氣間隙、爬電距離及安全凈距等絕緣配合的參數(shù),提出設備耐污的要求,并采用可靠的電氣設備及材料的防腐保護措施,最終確認合理的電氣設備型式及電氣系統(tǒng)設計方案。該設計研究成果避免了工程運行過程中因絕緣水平不足或防腐措施不力而造成安全事故的情況,解決了因絕緣水平過高或防腐措施過度而增加投資及運行成本等問題,達到技術及經濟性能的最佳結合,并通過了實際運行的檢驗,可為同類工程的電氣設計提供參考。
[Abstract]:The second phase heating center project of Qinghai Salt Lake Group Comprehensive Utilization Project is a power plant that supplies power to China's largest potash production base. It is located in the Chaerhan Salt Lake area of Golmud City, Qinghai Province, with a high altitude and heavy salt pollution. In order to ensure that the power plant can operate safely and reliably in this special environment for a long time, higher requirements must be put forward for the external insulation level and anticorrosion ability of the equipment. The purpose and key of electrical design are to modify the level of external insulation of the equipment above sea level, to select the equipment with insulation matching, and to take appropriate anti-corrosion measures for the equipment and materials, etc. In order to achieve the purpose of the design, the operation situation and existing problems of electrical equipment in this area are investigated, and the calculation methods of several current specifications are analyzed and compared with the test data of electrical equipment withstand voltage. With reference to the technical parameters and selection suggestions of the mature brand electrical equipment, combined with the technical and economic factors, the calculation and analysis are carried out and the results are compared. After verification and comparison, the appropriate altitude correction coefficient is selected to confirm the insulation coordination parameters of all kinds of electrical equipment of each voltage grade, such as withstand voltage, electrical gap, creeping distance and safe net distance, and put forward the requirements of equipment for anti-fouling. And adopt reliable anticorrosion protection measures of electrical equipment and materials, and finally confirm the reasonable electrical equipment type and electrical system design plan. The design research results avoid the safety accidents caused by insufficient insulation level or poor anticorrosion measures in engineering operation, and solve the problems of increasing investment and operation cost due to high insulation level or excessive anticorrosion measures, etc. The best combination of technical and economic performance has been achieved, and the test of practical operation has been passed, which can provide reference for the electrical design of similar projects.
【學位授予單位】：廣西大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM502

【參考文獻】

相關期刊論文 前1條

1 宋兵;張曉鵬;陳剛;黃彥全;汪秋賓;;27.5kV電氣設備絕緣水平及高海拔修正系數(shù)選擇[J];建筑電氣;2013年04期

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本文編號：2031439