CN112547460A - 海上风力发电转轮除湿机和盐雾净化过滤机组的防腐工艺 - Google Patents

海上风力发电转轮除湿机和盐雾净化过滤机组的防腐工艺 Download PDF

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CN112547460A
CN112547460A CN202011355534.8A CN202011355534A CN112547460A CN 112547460 A CN112547460 A CN 112547460A CN 202011355534 A CN202011355534 A CN 202011355534A CN 112547460 A CN112547460 A CN 112547460A
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rinsing
base material
wind power
power generation
paint
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李后明
苏滨
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Shanghai Shiteng Electric Appliance Co ltd
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Abstract

本发明的技术方案是提供了一种海上风力发电转轮除湿机和盐雾净化过滤机组的防腐工艺，其特征在于，将基材经酸洗作钝化处理，使其表面形成一层钝化膜；将所得基材表面喷涂油漆；具体为：依次喷涂环氧富锌底漆、厚浆型环氧中间漆、聚氨酯面漆，或者依次喷涂环氧富锌底漆、聚氨酯面漆。本发明突破了常规材料的防腐限制，防腐等级可以做到C4‑H以上。本发明可使海上风力发电塔筒和机舱内的转轮除湿设备和盐雾过滤净化设备防腐能力提高50％以上，大大提高了机器的使用寿命并大幅度缩减机器的维修成本。

Description

海上风力发电转轮除湿机和盐雾净化过滤机组的防腐工艺
技术领域
本发明涉及一种海上风力发电转轮除湿机和盐雾净化过滤机组的防腐工艺，以实现海上风力发电内部除湿机和盐雾过滤净化机的材料达到防腐要求。
背景技术
对于海上特殊气候，海上风力发电转轮除湿机组和盐雾过滤净化机组的需要采用防腐防盐雾材料，以实现C4-VH以上防腐等级，主要是针对的防腐、维护有以下几方面：
1、海上海盐腐蚀严重，目前的工艺达不到设计要求的防腐等级；
2、海上维护不方便，机器一旦因腐蚀而导致的故障遇上涨潮等大自然气象会严重耽误抢修的时间；
3、随着海上风电项目的发展，产品不断升级，对防腐这一块的要求逐步提升，所以机器防腐必须要升级达到设计要求的防腐级别。
针对以上情况，目前市场上采用的防腐方式是直接用304不锈钢或是镀锌板喷涂，常规的304不锈钢防腐材料或是镀锌板板喷涂防腐材料，可以在陆地上很好的起到防腐作用，但是在海上防腐缺点就比较明显腐蚀比较快，机器防腐达不到设计要求的C4-VH防腐标准。
发明内容
本发明所要解决的技术问题是：风力发电领域转轮除湿机和盐雾过滤净化机组防腐不达标，使用寿命短，维护不方便及成本高的问题。
为了解决以上技术问题，本发明的技术方案是提供了一种海上风力发电转轮除湿机和盐雾净化过滤机组的防腐工艺，其特征在于，包括以下方法中的至少一中：
方法一：将基材经酸洗作钝化处理，使其表面形成一层钝化膜；
方法二：将基材表面喷涂油漆；具体为：依次喷涂环氧富锌底漆、厚浆型环氧中间漆、聚氨酯面漆，或者依次喷涂环氧富锌底漆、聚氨酯面漆。
优选地，所述方法一中的基材采用316L不锈钢。
优选地，所述方法一中酸洗依次包括前处理、漂洗、活化、漂洗、钝化、漂洗、中和、漂洗、烘干步骤；所述前处理是根据工件加工状况先去油、除腊、除锈、焊斑、氧化层，确保表面干净；所述活化是根据工件外观及前处理情况进行活化处理，316L不锈钢可直接进行钝化处理；所述钝化是将被处理工件需全部浸没在硝酸、重络酸钾、水配制而成的钝化液中，浸没时间为4h，温度范围为常温至60℃；所述中和是用碱水或氢氧化钠中和(如：工件结构复杂、有深孔、有盲孔等必需经中和处理)；所述漂洗选用自来水漂洗和/或用氯离子含量小于25PPM的清水浸泡漂洗4min；所述干燥控制温度为100℃。
本发明突破了常规材料的防腐限制，防腐等级可以做到C4-H以上。本发明可使海上风力发电塔筒和机舱内的转轮除湿设备和盐雾过滤净化设备防腐能力提高50％以上，大大提高了机器的使用寿命并大幅度缩减机器的维修成本。
具体实施方式
为使本发明更明显易懂，兹以优选实施例，作详细说明如下。
实施例1
热镀锌基体采用以下防腐工艺：
先将热镀锌基体去油清洗，然后烘干，送到喷房进行喷塑底漆和面漆喷涂，最后进行盐雾试验。
未经处理的热镀锌基体经过C4-VH/C5-H实验1440H后，有严重腐蚀，表面起泡。
实施例2
304不锈钢采用以下防腐工艺：
将304不锈钢基体先除油清洗，然后烘干，送入喷房做喷漆处理，先喷环氧富锌底漆，再喷聚氨酯面漆，最后做盐雾试验。
经过C4-VH/C5-H实验1440H后，表面没有腐蚀迹象，油漆层很好的保护了基体，基体和油漆层起到双层保护的作用。
未经处理的304不锈钢经过C4-VH/C5-H实验1440H后，表面很轻微的腐蚀色泽暗淡。
实施例3
热镀锌基体采用以下防腐工艺：
将热镀锌基体去油清洗，然后烘干，送入喷房做喷漆处理，热镀锌基板进行3遍喷漆处理，依次喷涂环氧富锌底漆、厚浆型环氧中间漆、聚氨酯面漆，最后进行盐雾试验。
经过C4-VH/C5-H实验1440H后，表面没有腐蚀迹象，色泽稍稍变暗，油漆层很好的保护了基体，基体和油漆层起到双层保护的作用，防腐效果远高于304不锈钢。
实施例4
316L不锈钢采用以下防腐工艺：
将316L不锈钢先除油清洗，然后烘干，接着将316L不锈钢进行酸洗钝化工艺处理，最后做盐雾腐蚀实验。
被处理工件需全部浸没在钝化液中(硝酸、重络酸钾、水以质量比3L：150g：0.3L混合)。浸没时间为4h，钝化使用温度为常温至60℃。
经过C4-VH/C5-H实验1440H后，表面没有腐蚀，钝化层色泽稍稍变暗，钝化层很好的保护了基体，钝化层和基材316L起到双重保护作用。

Claims (3)

1.一种海上风力发电转轮除湿机和盐雾净化过滤机组的防腐工艺，其特征在于，包括以下方法中的至少一中：
方法一：将基材经酸洗作钝化处理，使其表面形成一层钝化膜；
方法二：将基材表面喷涂油漆；具体为：依次喷涂环氧富锌底漆、厚浆型环氧中间漆、聚氨酯面漆，或者依次喷涂环氧富锌底漆、聚氨酯面漆。
2.如权利要求1所述的海上风力发电转轮除湿机和盐雾净化过滤机组的防腐工艺，其特征在于，所述方法一中的基材采用316L不锈钢。
3.如权利要求1所述的海上风力发电转轮除湿机和盐雾净化过滤机组的防腐工艺，其特征在于，所述方法一中酸洗依次包括前处理、漂洗、活化、漂洗、钝化、漂洗、中和、漂洗、烘干步骤；所述前处理是根据工件加工状况先去油、除腊、除锈、焊斑、氧化层，确保表面干净；所述活化是根据工件外观及前处理情况进行活化处理；所述钝化是将被处理工件需全部浸没在硝酸、重络酸钾、水配制而成的钝化液中，浸没时间为4h，温度范围为常温至60℃；所述中和是用碱水或氢氧化钠中和；所述漂洗选用自来水漂洗和/或用氯离子含量小于25PPM的清水浸泡漂洗4min；所述干燥控制温度为100℃。
CN202011355534.8A 2020-11-27 2020-11-27 海上风力发电转轮除湿机和盐雾净化过滤机组的防腐工艺 Pending CN112547460A (zh)

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CN110000073A (zh) * 2019-03-13 2019-07-12 青岛天能重工股份有限公司 一种塔筒表面防腐喷涂工艺
CN110592566A (zh) * 2019-09-03 2019-12-20 厦门建霖健康家居股份有限公司 一种不锈钢钝化剂及其钝化工艺

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