CN113198709A - 一种脱硫排线外管内涂gre的防腐方法 - Google Patents

一种脱硫排线外管内涂gre的防腐方法 Download PDF

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CN113198709A
CN113198709A CN202110410379.3A CN202110410379A CN113198709A CN 113198709 A CN113198709 A CN 113198709A CN 202110410379 A CN202110410379 A CN 202110410379A CN 113198709 A CN113198709 A CN 113198709A
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polishing
parts
coating
flat cable
gre
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曹七
陈宇天
陈真
杨陈
孙俊杰
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Jiangsu Lvke Ship Technology Co ltd
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    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
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    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284Application of adhesive
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    • B32LAYERED PRODUCTS
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
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    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/16Drying; Softening; Cleaning
    • B32B38/162Cleaning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
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    • F16L58/1072Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe the coating being a sprayed layer
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00Protection of pipes or pipe fittings against corrosion or incrustation
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    • F16L58/14Coatings characterised by the materials used by ceramic or vitreous materials
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    • B05D2202/10Metallic substrate based on Fe
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2254/00Tubes
    • B05D2254/02Applying the material on the exterior of the tube
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
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    • B32B2037/243Coating
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/0012Mechanical treatment, e.g. roughening, deforming, stretching
    • B32B2038/002Sandblasting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
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Abstract

本发明公开了一种脱硫排线外管内涂GRE的防腐方法,其特征在于,包括以下步骤:S1、打磨:采用现有的管道打磨设备对排线管进行均匀打磨;S2、喷砂:采用喷砂设备在排线管道内壁进行均匀的喷砂处理;S3、二次打磨整平:采用管道打磨设备对防腐蚀施工区域进行再次打磨整平工作;S4、清洁:用清洗剂对钢制管的内外进行全面清洗清洁;利用现有的打磨粘贴工艺来对排线管道进行玻璃纤维布的粘贴及GRE涂料的喷涂来对管道进行阻隔防腐,采用手工打磨工艺对连接法兰盘进行打磨密封,使得管道的密封性能及防腐蚀性能得到了明显提升,同时能够根据实际的使用情况灵活的调整玻璃纤维布的粘贴数量,可现场进行灵活操作,操作简单方便。

Description

一种脱硫排线外管内涂GRE的防腐方法
技术领域
本发明涉及排线管道防腐技术领域,尤其涉及一种脱硫排线外管内涂GRE的防腐方法。
背景技术
在目前船舶脱硫设备加装内,尾气经过洗涤塔化学反应之后的酸水,常规是经过GRE管道,再经过舷外阀,经排舷外管,排到海洋中。一般排舷外管子的材质有普通碳钢,以及双向不锈钢等。由于双向不锈钢材料非常昂贵,很多船东选用普通碳钢,普通碳钢需要解决管内侧防腐的难关,一般是采用耐酸性油漆、或是涂塑。然而这两种都有缺点,耐酸油漆可以在现场施工,但是防腐效果不好,很快就容易被酸水腐蚀,保质期寿命不到6个月。涂塑的工艺不能在现场完成,而且安装接触端,一旦在现场焊接会破坏涂塑层,影响使用寿命。内衬GRE可以解决以上两种技术难关。
发明内容
为解决背景技术中存在的技术问题,本发明提出一种脱硫排线外管内涂GRE的防腐方法,它是通过内侧粘贴玻璃纤维布来直接阻隔碳素钢与酸水接触,表面涂设GRE涂料在进行防腐,解决技术中防腐蚀效果差,防腐涂层寿命短的问题。
为此,本发明提供了一种脱硫排线外管内涂GRE的防腐方法,包括以下步骤:
S1、打磨:采用现有的管道打磨设备对排线管进行均匀打磨;
S2、喷砂:采用喷砂设备在排线管道内壁进行均匀的喷砂处理;
S3、二次打磨整平:采用管道打磨设备对防腐蚀施工区域进行再次打磨整平工作;
S4、清洁:用清洗剂对钢制管的内外进行全面清洗清洁;
S5、一次涂胶:在钢制管的内壁进行均匀的涂抹特质胶水;
S6、一次粘贴:将第一层玻璃纤维布平整的铺设在钢制管的内壁;
S7、二次涂胶:在第一层玻璃纤维布的表面均匀涂抹特质胶水;
S8、二次粘贴:将第二层玻璃纤维布均匀平整的铺设在第一层玻璃纤维布的表面;
S9、三次涂胶:在第二层玻璃纤维布的表面均匀涂抹特质胶水;
S10、三次粘贴:将第三次玻璃纤维布均匀平整的铺设在第二层玻璃纤维布的表面;
S11、干燥:将处理好的钢制管置于常温通风干燥的位置,干燥四小时及以上;
S12、法兰盘处理:对钢制法兰盘采用上述同样的方式进行玻璃纤维布粘贴:
S13、法兰盘打磨:采用手工的方式对法兰盘的连接面进行打磨整平;
S14、密封:在钢制法兰盘与管道的连接处套设上弹性密封垫;
S15、喷涂:在排线管道的外侧均匀的喷涂GRE涂层。
优选的,所述S1步骤中打磨时,焊接处应打磨至焊缝与法兰面或管内壁平齐,使焊缝饱满,且管端切割打磨至与焊缝平齐,打磨出圆角>R6。
优选的,所述S2步骤中打磨时,管道内部防腐蚀施工区域不得有任何焊瘤、焊渣、飞溅等点状、颗粒状、条状、块状明显突起物。
优选的,所述S15步骤中,GRE涂层的厚度在50-100毫米之间。
优选的,所述玻璃纤维布的层数可以根据客户的要求调节,但至少要两层,膜厚在2.5-3毫米之间。
优选的,所述特质胶水配方成分及重量份为:丙烯酸树脂40-58份、乳化剂8-10份、稳定剂5-8份、防霉剂12-16份、附着力促进剂5-7份、固化剂8-12份。
优选的,所述特质胶水配方成分及重量份具体为:丙烯酸树脂50份、乳化剂为10份,稳定剂8份、防霉剂15份、附着力促进剂为7份、固化剂10份。
本发明提出的本发明提出一种脱硫排线外管内涂GRE的防腐方法,是利用现有的打磨粘贴工艺来对排线管道进行玻璃纤维布的粘贴及GRE涂料的喷涂来对管道进行阻隔防腐,采用手工打磨工艺对连接法兰盘进行打磨密封,使得管道的密封性能及防腐蚀性能得到了明显提升,同时能够根据实际的使用情况灵活的调整玻璃纤维布的粘贴数量,可现场进行灵活操作,操作简单方便,使用特质胶水进行粘连,长期稳定可靠,不易出现松动脱落的现象,材料使用环保,不会产生有害物质。
附图说明
图1是本发明具体实施例的流程图。
具体实施方式
下面,通过具体实施例对本发明的技术方案进行详细说明。
实施例1:
参照图1,本发明提出了一种脱硫排线外管内涂GRE的防腐方法,包括以下步骤:S1、打磨:采用现有的管道打磨设备对排线管进行均匀打磨;
S2、喷砂:采用喷砂设备在排线管道内壁进行均匀的喷砂处理;
S3、二次打磨整平:采用管道打磨设备对防腐蚀施工区域进行再次打磨整平工作;
S4、清洁:用清洗剂对钢制管的内外进行全面清洗清洁;
S5、一次涂胶:在钢制管的内壁进行均匀的涂抹特质胶水;
S6、一次粘贴:将第一层玻璃纤维布平整的铺设在钢制管的内壁;
S7、二次涂胶:在第一层玻璃纤维布的表面均匀涂抹特质胶水;
S8、二次粘贴:将第二层玻璃纤维布均匀平整的铺设在第一层玻璃纤维布的表面;
S9、三次涂胶:在第二层玻璃纤维布的表面均匀涂抹特质胶水;
S10、三次粘贴:将第三次玻璃纤维布均匀平整的铺设在第二层玻璃纤维布的表面;
S11、干燥:将处理好的钢制管置于常温通风干燥的位置,干燥四小时及以上;
S12、法兰盘处理:对钢制法兰盘采用上述同样的方式进行玻璃纤维布粘贴:
S13、法兰盘打磨:采用手工的方式对法兰盘的连接面进行打磨整平;
S14、密封:在钢制法兰盘与管道的连接处套设上弹性密封垫;
S15、喷涂:在排线管道的外侧均匀的喷涂GRE涂层。
优选的,所述S1步骤中打磨时,焊接处应打磨至焊缝与法兰面或管内壁平齐,使焊缝饱满,且管端切割打磨至与焊缝平齐,打磨出圆角>R6。
优选的,所述S2步骤中打磨时,管道内部防腐蚀施工区域不得有任何焊瘤、焊渣、飞溅等点状、颗粒状、条状、块状明显突起物。
优选的,所述S15步骤中,GRE涂层的厚度在50-100毫米之间。
优选的,所述玻璃纤维布的层数可以根据客户的要求调节,但至少要两层,膜厚在2.5-3毫米之间。
优选的,所述特质胶水配方成分及重量份为:丙烯酸树脂40-58份、乳化剂8-10份、稳定剂5-8份、防霉剂12-16份、附着力促进剂5-7份、固化剂8-12份。
优选的,所述特质胶水配方成分及重量份具体为:丙烯酸树脂50份、乳化剂为10份,稳定剂8份、防霉剂15份、附着力促进剂为7份、固化剂10份。
实施例2:
与实施例1不同之处在于,
步骤S10中后继续涂抹特质胶水,粘贴一层玻璃纤维布;
步骤S11中常温条件下,通风干燥24小时。
本发明的特点在于,是利用现有的打磨粘贴工艺来对排线管道进行玻璃纤维布的粘贴及GRE涂料的喷涂来对管道进行阻隔防腐,采用手工打磨工艺对连接法兰盘进行打磨密封,使得管道的密封性能及防腐蚀性能得到了明显提升,同时能够根据实际的使用情况灵活的调整玻璃纤维布的粘贴数量,可现场进行灵活操作,操作简单方便,使用特质胶水进行粘连,长期稳定可靠,不易出现松动脱落的现象,材料使用环保,不会产生有害物质。
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。

Claims (7)

1.一种脱硫排线外管内涂GRE的防腐方法,其特征在于,包括以下步骤:
S1、打磨:采用现有的管道打磨设备对排线管进行均匀打磨;
S2、喷砂:采用喷砂设备在排线管道内壁进行均匀的喷砂处理;
S3、二次打磨整平:采用管道打磨设备对防腐蚀施工区域进行再次打磨整平工作;
S4、清洁:用清洗剂对钢制管的内外进行全面清洗清洁;
S5、一次涂胶:在钢制管的内壁进行均匀的涂抹特质胶水;
S6、一次粘贴:将第一层玻璃纤维布平整的铺设在钢制管的内壁;
S7、二次涂胶:在第一层玻璃纤维布的表面均匀涂抹特质胶水;
S8、二次粘贴:将第二层玻璃纤维布均匀平整的铺设在第一层玻璃纤维布的表面;
S9、三次涂胶:在第二层玻璃纤维布的表面均匀涂抹特质胶水;
S10、三次粘贴:将第三次玻璃纤维布均匀平整的铺设在第二层玻璃纤维布的表面;
S11、干燥:将处理好的钢制管置于常温通风干燥的位置,干燥四小时及以上;
S12、法兰盘处理:对钢制法兰盘采用上述同样的方式进行玻璃纤维布粘贴:
S13、法兰盘打磨:采用手工的方式对法兰盘的连接面进行打磨整平;
S14、密封:在钢制法兰盘与管道的连接处套设上弹性密封垫;
S15、喷涂:在排线管道的外侧均匀的喷涂GRE涂层。
2.如权利要求1所述的一种脱硫排线外管内涂GRE的防腐方法,其特征在于,所述S1步骤中打磨时,焊接处应打磨至焊缝与法兰面或管内壁平齐,使焊缝饱满,且管端切割打磨至与焊缝平齐,打磨出圆角>R6。
3.如权利要求1所述的一种脱硫排线外管内涂GRE的防腐方法,其特征在于,所述S2步骤中打磨时,管道内部防腐蚀施工区域不得有任何焊瘤、焊渣、飞溅等点状、颗粒状、条状、块状明显突起物。
4.如权利要求1所述的一种脱硫排线外管内涂GRE的防腐方法,其特征在于,所述S15步骤中,GRE涂层的厚度在50-100毫米之间。
5.如权利要求1所述的一种脱硫排线外管内涂GRE的防腐方法,其特征在于,所述玻璃纤维布的层数可以根据客户的要求调节,但至少要两层,膜厚在2.5-3毫米之间。
6.如权利要求1所述的一种脱硫排线外管内涂GRE的防腐方法,其特征在于,所述特质胶水配方成分及重量份为:丙烯酸树脂40-58份、乳化剂8-10份、稳定剂5-8份、防霉剂12-16份、附着力促进剂5-7份、固化剂8-12份。
7.如权利要求6所述的一种脱硫排线外管内涂GRE的防腐方法,其特征在于,所述特质胶水配方成分及重量份具体为:丙烯酸树脂50份、乳化剂为10份,稳定剂8份、防霉剂15份、附着力促进剂为7份、固化剂10份。
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