CN113798146A - 一种油田污水储罐的制造方法 - Google Patents

一种油田污水储罐的制造方法 Download PDF

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CN113798146A
CN113798146A CN202111251653.3A CN202111251653A CN113798146A CN 113798146 A CN113798146 A CN 113798146A CN 202111251653 A CN202111251653 A CN 202111251653A CN 113798146 A CN113798146 A CN 113798146A
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侯可勇
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Shengli Oilfield Fangyuan Anticorrosive Material Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00Processes for applying liquids or other fluent materials
    • B05D1/36Successively applying liquids or other fluent materials, e.g. without intermediate treatment
    • B05D1/38Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/002Pretreatement
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0218Pretreatment, e.g. heating the substrate
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254After-treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/12Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
    • 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
    • B05D7/50Multilayers
    • B05D7/56Three layers or more
    • B05D7/58No clear coat specified
    • B05D7/586No clear coat specified each layer being cured, at least partially, separately
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2350/00Pretreatment of the substrate
    • B05D2350/30Change of the surface
    • B05D2350/33Roughening

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Abstract

本申请属于防腐涂料的喷涂工艺技术领域,具体为一种油田污水储罐的制造方法,所述储罐包括罐底、罐身和罐顶,连接处设有法兰,(1)将罐身内壁和外壁进行除锈、清洗;(2)对内壁和外壁进行激光毛化处理,毛化点的形状为圆形,对外壁表面进行打磨处理,(3)将罐身预热至110℃,并快速浸润到基材润湿剂里,浸润时间为1‑2min,取出,并在50℃下干燥50min,静置5h;(3)将罐身加热至120℃,通过喷枪向内壁和外壁第一次喷涂防腐涂料的底漆;(4)将罐身加热至125℃,通过喷枪向内壁和外壁第二次喷涂防腐涂料的底漆;(5)将罐身加热至130℃,通过喷枪向内壁和外壁第三次喷涂防腐涂料的底漆;(6)罐身加热至135℃,通过喷枪向内壁和外壁第一次喷涂防腐涂料的面漆;(7)罐身加热至140℃,通过喷枪向内壁和外壁第二次喷涂防腐涂料的面漆;(8)罐身加热至145℃,通过喷枪向内壁和外壁第三次喷涂防腐涂料的面漆;(9)将罐底、罐身、罐顶安装在一起,检测是否合格。

Description

一种油田污水储罐的制造方法
技术领域
本申请属于防腐涂料的喷涂工艺技术领域,具体为一种油田污水储罐的制造方法。
背景技术
油田污水主要包括原油脱出水、钻井污水及站内其它类型的含有污水,需要对其进行净化处理。油水污水中含有大量的腐蚀性物质,容易对设备腐蚀穿孔,因此,对设备进行喷涂防腐涂料是防止防止油田污水腐蚀设备的常用方法。喷涂是过喷枪或碟式雾化器,借助于压力或离心力,分散成均匀而微细的雾滴,施涂于被涂物表面的涂装方法。可分为空气喷涂、无空气喷涂、静电喷涂以及上述基本喷涂形式的各种派生的方式,如大流量低压力雾化喷涂、热喷涂、自动喷涂、多组喷涂等。然而现有的喷涂时通过喷涂枪直接将喷涂也喷涂到设备上,会出现喷涂不均匀、不稳定的现象。
发明内容
为了解决现有技术的问题,本申请提供了一种油田污水储罐的制造方法,本申请是通过下述方案实现的:
一种油田污水储罐的制造方法,所述储罐包括罐底、罐身和罐顶,连接处设有法兰,(1)将罐身内壁和外壁进行除锈、清洗;(2)对内壁和外壁进行激光毛化处理,毛化点的形状为圆形,对外壁表面采用1000-1500#砂纸进行打磨处理,(3)将罐身预热至110℃,并快速浸润到基材润湿剂里,浸润时间为1-2min,取出,并在50℃下干燥50min,静置5h;(3)将罐身加热至120℃,通过喷枪向内壁和外壁第一次喷涂防腐涂料的底漆,后固化24h,固化温度为65℃;(4)将罐身加热至125℃,通过喷枪向内壁和外壁第二次喷涂防腐涂料的底漆,后固化19h,固化温度为55℃;(5)将罐身加热至130℃,通过喷枪向内壁和外壁第三次喷涂防腐涂料的底漆,后固化20h,固化温度为60℃;(6)罐身加热至135℃,通过喷枪向内壁和外壁第一次喷涂防腐涂料的面漆,后固化21h,固化温度为65℃;(7)罐身加热至140℃,通过喷枪向内壁和外壁第二次喷涂防腐涂料的面漆,后固化22h,固化温度为68℃;(8)罐身加热至145℃,通过喷枪向内壁和外壁第三次喷涂防腐涂料的面漆,后固化23h,固化温度为70℃,后自然冷却至室温;(9)对罐底和灌顶的处理与罐身相同,将罐底、罐身、罐顶安装在一起,检测是否合格。
优选的,所述步骤(1)所述的毛化点的直径为100-120um。
进一步的,所述步骤(3)所述的底漆的喷涂厚度为干膜50微米;所述步骤(4)所述的底漆的喷涂厚度为干膜52微米;所述步骤(5)所述的底漆的喷涂厚度为干膜56微米。
更进一步的,所述步骤(3)所述的喷枪的气压为0.4 MPa;所述步骤(4)所述的喷枪的气压为0.45 MPa;所述步骤(5)所述的喷枪的气压为0.5 MPa。
更进一步的,所述步骤(6)所述的面漆的喷涂厚度为干膜56微米;所述步骤(7)所述的面漆的喷涂厚度为干膜58微米;所述步骤(8)所述的面漆的喷涂厚度为干膜60微米。
更进一步的,所述步骤(6)所述的喷枪的气压为0.55 MPa;所述步骤(7)所述的喷枪的气压为0.60 MPa;所述步骤(8)所述的喷枪的气压为0.65 MPa。
有益效果:喷涂前对罐的内壁、外壁进行除锈和清洗,在经过激光毛化将罐的表面处理成粗糙度均匀、排列规则的表面,有助于防腐涂料的附着;每次喷涂的压力递升,使膜与膜之间的结合力更强。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚,下面将对本申请实施方式作进一步地详细描述。
实施例1
一种油田污水储罐的制造方法,所述储罐包括罐底、罐身和罐顶,连接处设有法兰,(1)将罐身内壁和外壁进行除锈、清洗;(2)对内壁和外壁进行激光毛化处理,毛化点的形状为圆形,对外壁表面采用1000-1500#砂纸进行打磨处理,(3)将罐身预热至110℃,并快速浸润到基材润湿剂里,浸润时间为1-2min,取出,并在50℃下干燥50min,静置5h;(3)将罐身加热至120℃,通过喷枪向内壁和外壁第一次喷涂防腐涂料的底漆,后固化24h,固化温度为65℃;(4)将罐身加热至125℃,通过喷枪向内壁和外壁第二次喷涂防腐涂料的底漆,后固化19h,固化温度为55℃;(5)将罐身加热至130℃,通过喷枪向内壁和外壁第三次喷涂防腐涂料的底漆,后固化20h,固化温度为60℃;(6)罐身加热至135℃,通过喷枪向内壁和外壁第一次喷涂防腐涂料的面漆,后固化21h,固化温度为65℃;(7)罐身加热至140℃,通过喷枪向内壁和外壁第二次喷涂防腐涂料的面漆,后固化22h,固化温度为68℃;(8)罐身加热至145℃,通过喷枪向内壁和外壁第三次喷涂防腐涂料的面漆,后固化23h,固化温度为70℃,后自然冷却至室温;(9)对罐底和灌顶的处理与罐身相同,将罐底、罐身、罐顶安装在一起,检测是否合格;
优选的,所述步骤(1)所述的毛化点的直径为100-120um;
进一步的,所述步骤(3)所述的底漆的喷涂厚度为干膜50微米;所述步骤(4)所述的底漆的喷涂厚度为干膜52微米;所述步骤(5)所述的底漆的喷涂厚度为干膜56微米;
更进一步的,所述步骤(3)所述的喷枪的气压为0.4 MPa;所述步骤(4)所述的喷枪的气压为0.45 MPa;所述步骤(5)所述的喷枪的气压为0.5 MPa;
更进一步的,所述步骤(6)所述的面漆的喷涂厚度为干膜56微米;所述步骤(7)所述的面漆的喷涂厚度为干膜58微米;所述步骤(8)所述的面漆的喷涂厚度为干膜60微米;
更进一步的,所述步骤(6)所述的喷枪的气压为0.55 MPa;所述步骤(7)所述的喷枪的气压为0.60 MPa;所述步骤(8)所述的喷枪的气压为0.65 MPa。
实施例2
除以下外均与实施例1相同;
所述步骤(3)、(4)、(5)、(6)、(7)、(8)的所述的喷枪的气压为0.55MPa。
实施例3
除以下外均与实施例1相同;
所述步骤(3)、(4)、(5)、(6)、(7)、(8)的固化温度为60℃。
实施例4
除以下外均与实施例1相同;
所述步骤(3)、(4)、(5)、(6)、(7)、(8)喷涂前罐身、罐顶、罐底的温度为130℃。
本申请所使用的基材润湿剂的产品型号为:Greesol H87。
耐碱试验
将实施例1、实施例2、实施例3、实施例4中装满pH为11的油田污水,并置于40℃的环境中放置;将实施例1、实施例2、实施例3、实施例4中装满pH为11的油田污水,并置于-30℃的环境中放置;具体情况如下:
40℃ -30℃
实施例1 1年内储罐未出现起泡、剥落、生锈、开裂的现象 1年内储罐未出现起泡、剥落、生锈、开裂的现象
实施例2 3月内储罐未出现起泡、剥落、生锈、开裂的现象 3月内储罐未出现起泡、剥落、生锈、开裂的现象
实施例3 3月内储罐未出现起泡、剥落、生锈、开裂的现象 3月内储罐未出现起泡、剥落、生锈、开裂的现象
实施例4 3月内储罐未出现起泡、剥落、生锈、开裂的现象 3月内储罐未出现起泡、剥落、生锈、开裂的现象
耐酸试验
将实施例1、实施例2、实施例3、实施例4中装满pH为2的油田污水,并置于40℃的环境中放置;将实施例1、实施例2、实施例3、实施例4中装满pH为2的油田污水,并置于-30℃的环境中放置;具体情况如下:
40℃ -30℃
实施例1 1年内储罐未出现起泡、剥落、生锈、开裂的现象 1年内储罐未出现起泡、剥落、生锈、开裂的现象
实施例2 3月内储罐未出现起泡、剥落、生锈、开裂的现象 3月内储罐未出现起泡、剥落、生锈、开裂的现象
实施例3 3月内储罐未出现起泡、剥落、生锈、开裂的现象 3月内储罐未出现起泡、剥落、生锈、开裂的现象
实施例4 3月内储罐未出现起泡、剥落、生锈、开裂的现象 3月内储罐未出现起泡、剥落、生锈、开裂的现象
由耐酸试验、耐碱试验可以看出,由本申请方法处理的储罐耐酸、耐碱,且在炎热的夏季或寒冷的冬天,也不会影响其效果。
最后说明的是,以上实施例仅用以说明本申请的技术方案而非限制,尽管参照较佳实施例对本申请进行了详细说明,本领域的普通技术人员应当理解,可以对本申请的技术方案进行修改或者等同替换,而不脱离本申请技术方案的宗旨和范围,其均应涵盖在本申请的权利要求范围当中。

Claims (6)

1.一种油田污水储罐的制造方法,所述储罐包括罐底、罐身和罐顶,连接处设有法兰,其特征在于,(1)将罐身内壁和外壁进行除锈、清洗;(2)对内壁和外壁进行激光毛化处理,毛化点的形状为圆形,对外壁表面采用1000-1500#砂纸进行打磨处理,(3)将罐身预热至110℃,并快速浸润到基材润湿剂里,浸润时间为1-2min,取出,并在50℃下干燥50min,静置5h;(3)将罐身加热至120℃,通过喷枪向内壁和外壁第一次喷涂防腐涂料的底漆,后固化24h,固化温度为65℃;(4)将罐身加热至125℃,通过喷枪向内壁和外壁第二次喷涂防腐涂料的底漆,后固化19h,固化温度为55℃;(5)将罐身加热至130℃,通过喷枪向内壁和外壁第三次喷涂防腐涂料的底漆,后固化20h,固化温度为60℃;(6)罐身加热至135℃,通过喷枪向内壁和外壁第一次喷涂防腐涂料的面漆,后固化21h,固化温度为65℃;(7)罐身加热至140℃,通过喷枪向内壁和外壁第二次喷涂防腐涂料的面漆,后固化22h,固化温度为68℃;(8)罐身加热至145℃,通过喷枪向内壁和外壁第三次喷涂防腐涂料的面漆,后固化23h,固化温度为70℃,后自然冷却至室温;(9)对罐底和灌顶的处理与罐身相同,将罐底、罐身、罐顶安装在一起,检测是否合格。
2.如权利要求1所述的一种油田污水储罐的制造方法,其特征在于,所述步骤(1)所述的毛化点的直径为100-120um。
3.如权利要求1所述的一种油田污水储罐的制造方法,其特征在于,所述步骤(3)所述的底漆的喷涂厚度为干膜50微米;所述步骤(4)所述的底漆的喷涂厚度为干膜52微米;所述步骤(5)所述的底漆的喷涂厚度为干膜56微米。
4.如权利要求1所述的一种油田污水储罐的制造方法,其特征在于,所述步骤(3)所述的喷枪的气压为0.4 MPa;所述步骤(4)所述的喷枪的气压为0.45 MPa;所述步骤(5)所述的喷枪的气压为0.5 MPa。
5.如权利要求1所述的一种油田污水储罐的制造方法,其特征在于,所述步骤(6)所述的面漆的喷涂厚度为干膜56微米;所述步骤(7)所述的面漆的喷涂厚度为干膜58微米;所述步骤(8)所述的面漆的喷涂厚度为干膜60微米。
6.如权利要求1所述的一种油田污水储罐的制造方法,其特征在于,所述步骤(6)所述的喷枪的气压为0.55 MPa;所述步骤(7)所述的喷枪的气压为0.60 MPa;所述步骤(8)所述的喷枪的气压为0.65 MPa。
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