养殖海水固体颗粒物含量分布及其对铜质板式换热器腐蚀影响分析  

Solid Particulate Content and Distribution in Marine Aquaculture Water and Influence on Corrosion of Copper Plate Heat Exchanger

作　　者：付玉彬[1] 李建海[1] 宰学荣[2] 

机构地区：[1]中国海洋大学材料科学与工程研究院 [2]中国海洋大学化学化工学院,山东青岛266100

出　　处：《材料开发与应用》2010年第1期45-50,共6页Development and Application of Materials

基　　金：美国国际铜专业协会的资助

摘　　要：铜质板式换热器是一种新型换热节能材料，在水产养殖、船舶运输、地热资源、化工等领域，具有广阔的应用前景。本文结合其在海水养殖领域的使用情况，对养殖海水固体颗粒物含量和分布进行了调查，并通过现场调查和模拟冲刷实验分析了固体颗粒物对铜质板式换热器的腐蚀影响。结果表明：养殖系统海水固体颗粒物含量很低，其中天然、砂滤和养殖池内3种海水颗粒物含量范围分别在1.3—2．7mg／L，0．04—0．4mg／L，0．02—0．26mg／L。天然海水含有大量不规则细小颗粒，池内海水含有大量片状颗粒物，砂滤海水的颗粒特征不明显。许多大颗粒是由纳米颗粒团聚堆积而成的。由于颗粒物含量低，海水流速小，冲刷力小，养殖海水固体颗粒物对铜质板式换热器腐蚀影响轻微。现场腐蚀调查和模拟冲刷实验结果也证明这一点。该研究结果可为铜质板式换热器在海水养殖领域的推广应用提供参考。Copper plate heat exchanger （CPHE） is a kind of novel material for heat exchange and saving energy, which can be widely utilized in the field of marine aquaculture, ship, geothermal, power and chemical industry. In order to understand the potential effect of solid particulate matter in marine aquaculture water on the corrosion of CPHE, the content and size distribution of solid particulate matter in water are investigated in the paper. Result indicates that the contents of solid particulate matter in natural water, water through sand filter tower, pool water for sea cucumber are in the range of 1.3 - 2.7 mg/L, 0. 04 - 0. 4 mg/L, and 0. 02 - 0. 26 mg/L respectively. The solid matter in natural water is of an unregular particulate shape; the pool water a sheet-like characteristic; and the water through sand filter tower unclearly particulate feature. The aize of most solid particles in seawater is in the range of 1 -5 um, which are formed by nano-sized particles. Due to the much lower particulate content, seawater velocity and their resulting lower erosion force, it can be concluded that the effect of the solid particulate matter on the corrosion of CPHE is very slight. The simulation erosion test and the practical investigation of CPHE support the conclusion. The result will be helpful to promote the CPHE application and spread in the marine aquaculture field.

关 键 词：养殖海水 固体颗粒物 铜质板式换热器 腐蚀分析 

分 类 号：S953.9[农业科学—水产养殖] TF066.2[农业科学—水产科学]