Page 92 - Vol.50

廠務季刊 Facility Journal 2023

發電機散熱水箱故障成因及抗腐蝕改善之探討
The brand-new proposal of power generator respond to power rationing

文││江茂宣│新竹廠務三部

摘要

摘要 近年來配合台電限電需求，廠區多次開啟發電機降載因應，發電機啟動頻
率較以往大幅增加，機組也陸續出現故障情形，其中以散熱水箱故障漏水
1. 前言
為最大宗。當散熱水箱發生故障，該發電機將無法正常開啟，直接影響廠
2. 文獻探討 區緊急電力供應容量。因此，找出水箱故障成因及如何強化改善，成為提
升發電機妥善率的一項重要課題。
2.1 發電機水箱故障漏水
成因分析 進一步分析水箱故障原因，發現為水箱銅管鰭片表面長期累積許多腐蝕物
質 ( 氯、硫等 )，由外而內侵蝕銅管鰭片造成管壁破損漏水。為強化水箱抗
2.2 廠區環境分析
腐蝕能力，延長使用年限，與發電機廠商安葆合作研究抗腐蝕對策，選定
2.3 金屬腐蝕原因探討 兼具抗腐蝕及散熱佳的石墨烯複合塗料，由第三方金屬中心依規範 (ASTM
B368-21) 進行加速腐蝕老化試驗，試驗結果可提升 50% 壽命。
2.4 金屬腐蝕防治方式
同時以熱傳模擬軟體進行水箱散熱能力的影響程度，確保石墨烯塗層不影
2.5 石墨烯在金屬防腐蝕 響水箱散熱效果，與水箱廠討論後，在水箱翻修過程，加入噴塗石墨烯塗
的應用 層工序，提供各廠水箱翻修更換時的改善參考。
3. 實驗方法 關鍵詞 : 發電機、散熱水箱、石墨烯、抗腐蝕塗層

3.1 抗腐蝕方案評估
In recent years, due to TPC power limits demand, TSMC supported
3.2 抗腐蝕能力驗證 TPC to reduce power consumption by turn on generators. The
frequency substantial increase over the past, which cause the
3.3 塗層對發電機水箱散熱
failures rate of generators increased. Especially the cooling water
影響評估 - 熱傳模擬 tank is the most serious. Once cooling water tank fails, the generator
cannot be turned on normally, which would reduce the emergency
4. 結果與分析
power supply capacity. Therefore, finding out the cause of the water
4.1 石墨烯塗層導入水箱 tank failure and how to strengthen and improve it has become an
important issue to improve the generator availability rate.
翻修工法
Further analysis of the water tank malfunction revealed that the
4.2 發電機加載實測
surface of the copper tube fins had accumulated a lot of corrosive
5. 結論 substances(chlorine, sulfur, etc.) over a long period of time, which
had corroded the copper tube fins from the outside in, causing the
參考文獻 tube wall to rupture and leak. To enhance the water tank�s anti-
corrosion ability and extend its service life, we collaborated with the
作者介紹
generator manufacturer to research anti-corrosion measures and
selected a graphene composite coating with good anti-corrosion and
heat dissipation properties. The coating was subjected to accelerated
corrosion aging tests by a third-party metal center in accordance
with the specification(ASTM B368-21), and the test results showed
a 50% increase in lifespan. At the same time, we used heat transfer
simulation software to evaluate the impact of the coating on the
water tank�s heat dissipation ability, and after discussions with the
water tank manufacturer, we added the spraying of the graphene
coating to the water tank refurbishment process to provide
improvement references for other tank refurbishments.
Keywords : Generators, Cooling water tank, Graphene, Anti-corrosion
coating

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