發(fā)電機氫氣純度偏低的治理和典型氫氣提純裝置的應(yīng)用
馮宇哲1,孫海軍2,柯元豐3, 鄭浩4,楊立川1
(1 國網(wǎng)浙江省電力有限公司電力科學(xué)研究院,浙江 杭州 310014;
2 浙江大唐烏沙山發(fā)電有限責(zé)任公司,浙江 寧波 318016;
3 大唐國際發(fā)電股份有限公司浙江分公司,浙江 杭州 315700;
4 浙江浙能嘉興發(fā)電有限公司,浙江 嘉興 314201)
摘 要:發(fā)電機氫氣純度偏低不僅將提高機組運維成本,造成經(jīng)濟損失,還會形成潛在的設(shè)備安全隱患。結(jié)合浙江省內(nèi)發(fā)電機組實際運行經(jīng)驗,從密封性、密封油和氫氣氣源多角度分析發(fā)電機氫氣純度偏低的常見原因,并分別介紹基于金屬氫化物提純和儲存雙重功能的氫氣綜合提純系統(tǒng)和基于薄膜蒸發(fā)原理的密封油提純裝置的工作原理、結(jié)構(gòu)組成、提純流程和應(yīng)用情況。兩種典型氫氣提純裝置應(yīng)用后,發(fā)電機氫氣純度均顯著上升,采用的氫氣純度偏低原因分析方法和提及的氫氣提純裝置對相關(guān)人員具有一定的借鑒作用。
關(guān)鍵詞:發(fā)電機;氫氣純度;提純裝置
中圖分類號:TM31 文獻標(biāo)識碼:B 文章編號:1007-3175(2021)07-0039-05
Improvement of Low Purity of Generator Hydrogen and
Application of Hydrogen Purification Device
FENG Yu-zhe1, SUN Hai-jun2, KE Yuan-feng3, ZHENG Hao4, YANG Li-chuan1
(1 Zhejiang Electric Power Research Institute, Hangzhou 310014, China;
2 Zhejiang Datang Wushashan Power Plant Co., Ltd, Ningbo 318016, China;
3 Zhejiang Branch of Datang International Power Generation Co., Ltd, Hangzhou 315700, China;
4 Zhejiang Zheneng Jiaxing Power Plant Co., Ltd, Jiaxing 314201, China)
Abstract: Low purity of generator hydrogen not only increases the operating costs of generation units, but also creates safety risks to the generator. According to the practical experiences of generator operation in Zhejiang, an integrated analysis on the common causes of low purity of generator hydrogen is presented from the perspective of sealing, sealing oil and hydrogen gas source. Two typical hydrogen purification devices, the comprehensive hydrogen purification system with both functions of purification and storage of metal hydride and the sealing oil purification device based on the thin film evaporation theory, are introduced in aspects of working principle, structure, purification process and application. As a result, the hydrogen purity of generators increases significantly by using that two devices. Lastly, this review could provide some references to relevant researchers.
Key words: generator; hydrogen purity; purification device
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