大功率晶閘管用水冷板的優(yōu)化設(shè)計
孫鳳玉
(上海軌道交通設(shè)備發(fā)展有限公司,上海 200245)
摘 要:大功率晶閘管是高壓直流輸電裝置的關(guān)鍵部件。根據(jù)大功率晶閘管的高散熱要求,設(shè)計一種帶有內(nèi)部強化換熱結(jié)構(gòu)的水冷板。采用數(shù)值模擬的方法分析了水冷板在不同流量、不同的熱源大小和不同的流體等參數(shù)下的熱性能,提出了在高發(fā)熱區(qū)域采用了強化換熱結(jié)構(gòu)的三維流動傳熱的水冷板,并對局部結(jié)構(gòu)進行優(yōu)化,使得晶閘管的溫度降低并且均勻,可確保晶閘管的運行安全和保障使用壽命。
關(guān)鍵詞:水冷板;晶閘管;數(shù)值模擬
中圖分類號:TN34 文獻標(biāo)識碼:B 文章編號:1007-3175(2020)10-0039-04
Optimization Design of Water Cold Plate for High Power Thyristor
SUN Feng-yu
(Shanghai Rail Traffic Equipment Development Co., Ltd, Shanghai 200245, China)
Abstract: High power thyristor is the central component of the HVDC convertor station. Base on the cooling requirements for utilization of high power thyristors, the water cold plate with enhanced heat transfer structure is designed. The thermal performance of water cold plate under different flow rate, different heat source size and different fluid are studied with numerical simulation. The three-dimensional flow heat transfer water-cooled plate with enhanced heat transfer structure is proposed in the high heating area. The local structure is optimized to make the temperature lower and uniform in the thyristor. The operation safely of thyristor is ensured and service life is guaranteed.
Key words: water cold plate; thyristor; numerical simulation
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