수산해양기술연구 (Journal of the Korean Society of Fisheries and Ocean Technology)
- 제35권2호
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- Pages.196-200
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- 1999
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- 2671-9940(pISSN)
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- 2671-9924(eISSN)
원통다관형 열교환기의 침식-부식 특성에 관한 연구 (I)
Study on the Characteristics of Erosion-Corrosion for Heat Exchanger of Shell and Tube Type(I)
초록
In the case that erosion and corrosion occurs in machinery and structure at the same time, the synergy effect by erosion-corrosion affects fatal effect to durability of machinery and structure. Therefore, in machinery and structure which use corrosion liquid, the study of the synergy effect of erosion-corrosion which affects metal material is requested. In this paper. the flow corrosion experiment about the effect of temperature change and liquid velocity change in sea water was carried out to study the characteristics of erosion-corrosion for tube material Cu heat exchanger The main results obtained are as follows. (1) Damage appearance of tube outside by erosion-corrosion becomes dull because electrode potentials of Cu tube is higher than electrode potential of STPG38 shell. (2) In the cooling system by sea water, the weight loss rate of Cu at tube outside liquid temperature of
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