CN113685622A - 一种抗腐蚀装置用传热不锈钢管 - Google Patents

一种抗腐蚀装置用传热不锈钢管 Download PDF

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CN113685622A
CN113685622A CN202110952051.4A CN202110952051A CN113685622A CN 113685622 A CN113685622 A CN 113685622A CN 202110952051 A CN202110952051 A CN 202110952051A CN 113685622 A CN113685622 A CN 113685622A
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郁宇新
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Wuxi Xinchang Steel Pipe Co ltd
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Abstract

本发明公开了一种抗腐蚀装置用传热不锈钢管,包括不锈钢管主体,所述不锈钢管主体包括内管、外管与橡胶管,所述内管安设在外管内部,所述橡胶管安设在外管外部,所述内管内壁涂敷有抗腐蚀层,所述内管与外管之间安设有若干隔热机构,所述外管与橡胶管之间开设有若干空腔;本发明通过将不锈钢管分为多层,并且在最内层侧壁设置了抗腐蚀层的方法,使得本发明中的不锈钢管更加具有抗腐蚀性,而且通过最外层橡胶管以及内部的隔热机构,也可以减少热量的流失,使得本发明中的不锈钢管的传热性能更好。

Description

一种抗腐蚀装置用传热不锈钢管
技术领域
本发明涉及管道设备技术领域,尤其涉及一种抗腐蚀装置用传热不锈钢管。
背景技术
不锈钢钢管是一种中空的长条圆形钢材,主要广泛用于石油、化工、医疗、食品、轻工、机械仪表等工业输送管道以及机械结构部件等。另外,在折弯、抗扭强度相同时,重量较轻,所以也广泛用于制造机械零件和工程结构。不锈钢管是一种经济的断面钢材,是钢铁工业中的一项重要产品,通常占全部钢材总量的8%—16%左右它在国民经济中的应用范围极为广泛。
不锈钢管被广泛地应用于化工产业,但是在输送一些具有腐蚀性的液体时,现有技术中的不锈钢管有时会被腐蚀,导致输送过程产生问题,而且在输送过程中的热量会大幅度流失,无形中破坏了后续的反应条件,使得企业的成本增加,为此,我们提出一种抗腐蚀装置用传热不锈钢管来解决上述问题。
发明内容
本发明的目的是为了解决现有技术中存在的缺点,如:现有技术中的不锈钢管抗腐蚀性能不足,而且在输送过程中热量会大幅度流失,而提出的一种抗腐蚀装置用传热不锈钢管。
为了实现上述目的,本发明采用了如下技术方案:
一种抗腐蚀装置用传热不锈钢管,包括不锈钢管主体,其特征在于,所述不锈钢管主体包括内管、外管与橡胶管,所述内管安设在外管内部,所述橡胶管安设在外管外部,所述内管内壁涂敷有抗腐蚀层,所述内管与外管之间安设有若干隔热机构,所述外管与橡胶管之间开设有若干空腔。
本发明进一步限定技术方案:
优选地,所述填料包括滑石粉、石墨、聚偏氟乙烯一种或多种混合物。
优选地,所述抗腐蚀层按质量份数计包括以下组分:氟碳树脂:30份、环氧树脂:50份、聚四氟乙烯树脂:15份、聚苯硫醚树脂:13份、玻璃纤维:5份、羟丙基甲基纤维素:11份、有机硅:3份、复合稀土:0.5份、乙烯基醚共聚物:6份、三氟氯乙烯:4份、空玻璃微珠:10份、三乙醇胺:3份、有机膨润土:10份、聚亚胺脂涂料:1份、填料:5份、三聚磷酸钠:2份、封闭剂:2份、γ-氨丙基三乙氧基硅烷:5份、偶联剂:2份、稳定剂:1份。
优选地,根据权利要求1所述的一种抗腐蚀装置用传热不锈钢管,其特征在于,所述抗腐蚀层按质量份数计包括以下组分:氟碳树脂:35份、环氧树脂:55份、聚四氟乙烯树脂:18份、聚苯硫醚树脂:17份、玻璃纤维:10份、羟丙基甲基纤维素:12份、有机硅:4份、复合稀土:1份、乙烯基醚共聚物:8份、三氟氯乙烯:6份、空玻璃微珠:13份、三乙醇胺:5份、有机膨润土:13份、聚亚胺脂涂料:2份、填料:9份、三聚磷酸钠:3份、封闭剂:2份、γ-氨丙基三乙氧基硅烷:6份、偶联剂:3份、稳定剂:2份。
优选地,所述抗腐蚀层呈斜纹状,均匀开设于内管侧壁的表面。
优选地,所述隔热机构包括隔断与填充料,所述隔断将内管与外管之间分割成若干个区域,所述填充料分别填充在隔断内。
优选地,所述内管的厚度为25-35mm,所述外管的厚度为25-35mm。
优选地,所述内管与外管均为316不锈钢。
优选地,所述填充料的材质为碳纤维颗粒,所述碳纤维颗粒的尺寸为3-6mm。
与现有技术相比,本发明的有益效果是:
1、本发明在最内层的内管侧壁设置抗腐蚀层,该抗腐蚀层中乙烯基醚共聚物和三氟氯乙烯作为溶剂与氟碳树脂可溶,三者具有良好的可溶性、超耐候性、极佳的耐盐雾性、优异的防腐蚀性和良好的耐玷污性,添加少量的聚亚胺脂涂料,能够提高整体的耐酸、耐碱性,也具有良好的耐高温性,也保证钢管良好的热传导性;环氧树脂与有机硅按质量比8:2,并且加入适量偶联剂在适宜的温度下反应若干小时得到改性环氧树脂,将得到改性环氧树脂、聚苯硫醚树脂与聚四氟乙烯树脂配合使用,能够提高涂层整体的耐热和防腐蚀性,同时也保证了钢管的热传导性;添加三乙醇胺,可作为活性剂,大大加速流程过程,提高物料的交联程度和密度,大幅提高了本发明的耐酸碱腐蚀性能;添加空玻璃微珠,可提高了附着力以及耐火性能;
2、本发明抗腐蚀层为斜纹状,液体在输送的过程中,不会过多地沾染到内管侧壁,使得内管可以长时间地工作,而且聚四氟乙烯还具有耐高温的特点,不用担心输送高温液体时,会有抗腐蚀层脱落的风险;
3、本发明设置在内管与外管之间的隔断与填充料,可以较好地防止内管中液体的热量流失,隔断将内管与外管之间的区域分割成若干个区域,相较于直接往内管与外管之间填充进填充料,可以使得填充料的分布更加均匀,填充料之间的距离更加紧密,从而使得隔热效果更好,同时在外管的外侧还设置有橡胶管,不仅更进一步防止热量流失,而且还可以防止工作人员被正在输送高温液体的不锈钢管烫伤,保护了工作人员的安全。
附图说明
图1为本发明提出的一种抗腐蚀装置用传热不锈钢管的结构示意图;
图2为不锈钢管的正视图。
图中:1内管、2抗腐蚀层、3外管、4橡胶管、5空腔、6隔断、7填充料。
具体实施方式
实施例1
参照图1-2,不锈钢管在经过剥皮、检验、加热、穿孔等步骤之后,采用先冷轧再冷拔的方法制备,在冷轧过程中,需要往尚未完全成型的不锈钢中添加镍和铬,并且镍和铬的比例为1.8:1,冷拔时需要使用60T的单链式冷拔机,然后再经过酸洗、酸洗钝化等步骤。
一种抗腐蚀装置用传热不锈钢管,包括不锈钢管主体,不锈钢管主体包括内管1、外管3与橡胶管4,内管1的厚度为25-35mm,外管3的厚度为25-35mm,内管1与外管3均为316不锈钢,316不锈钢性能优于310和304不锈钢,高温条件下,当硫酸的浓度低于15%和高于85%时,316不锈钢具有广泛的用途,耐腐蚀性能更强;
内管1安设在外管3内部,橡胶管4安设在外管3外部,内管1内壁涂敷有抗腐蚀层2,抗腐蚀层2呈斜纹状,均匀开设于内管1侧壁的表面,
抗腐蚀层按质量份数计包括以下组分:氟碳树脂:30份、环氧树脂:50份、聚四氟乙烯树脂:15份、聚苯硫醚树脂:13份、玻璃纤维:5份、羟丙基甲基纤维素:11份、有机硅:3份、复合稀土:0.5份、乙烯基醚共聚物:6份、三氟氯乙烯:4份、空玻璃微珠:10份、三乙醇胺:3份、有机膨润土:10份、聚亚胺脂涂料:1份、填料:5份、三聚磷酸钠:2份、封闭剂:2份、γ-氨丙基三乙氧基硅烷:5份、偶联剂:2份、稳定剂:1份;其中填料包括滑石粉、石墨、聚偏氟乙烯三种混合物;
抗腐蚀层2的不仅具有良好地抗酸抗碱性,可以保护内管1的安全,同时还具有良好的耐高温以及热传导的特性,可以满足输送高温液体的需求;
内管1与外管3之间安设有若干隔热机构,隔热机构包括隔断6与填充料7,隔断6将内管1与外管3之间分割成若干个区域,填充料7分别填充在隔断6内,填充料7的材质为碳纤维颗粒,碳纤维颗粒的尺寸为3-6mm,外管3与橡胶管4之间开设有若干空腔5,空腔5可以起到一定的隔热效果,使得本发明的隔热效果更好。
实施例2
本实施例与上述实施例主要区别在于:抗腐蚀层按质量份数计包括以下组分:氟碳树脂:35份、环氧树脂:55份、聚四氟乙烯树脂:18份、聚苯硫醚树脂:17份、玻璃纤维:10份、羟丙基甲基纤维素:12份、有机硅:4份、复合稀土:1份、乙烯基醚共聚物:8份、三氟氯乙烯:6份、空玻璃微珠:13份、三乙醇胺:5份、有机膨润土:13份、聚亚胺脂涂料:2份、填料:9份、三聚磷酸钠:3份、封闭剂:2份、γ-氨丙基三乙氧基硅烷:6份、偶联剂:3份、稳定剂:2份;其中填料包括滑石粉、石墨、聚偏氟乙烯三种混合物。
在本发明的描述中,需要理解的是,术语“同轴”、“底部”、“一端”、“顶部”、“中部”、“另一端”、“上”、“一侧”、“顶部”、“内”、“前部”、“中央”、“两端”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。
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 (9)

1.一种抗腐蚀装置用传热不锈钢管,包括不锈钢管主体,其特征在于,所述不锈钢管主体包括内管(1)、外管(3)与橡胶管(4),所述内管(1)安设在外管(3)内部,所述橡胶管(4)安设在外管(3)外部,所述内管(1)内壁涂敷有抗腐蚀层(2),所述内管(1)与外管(3)之间安设有若干隔热机构,所述外管(3)与橡胶管(4)之间开设有若干空腔(5);
所述抗腐蚀层按质量份数计包括以下组分:氟碳树脂:30-40份、环氧树脂:50-60份、聚四氟乙烯树脂:15-20份、聚苯硫醚树脂:13-22份、玻璃纤维:5-13份、羟丙基甲基纤维素:11-13份、有机硅:3-5份、复合稀土:0.5-1.5份、乙烯基醚共聚物:6-10份、三氟氯乙烯:4-9份、空玻璃微珠:10-15份、三乙醇胺:3-6份、有机膨润土:10-16份、聚亚胺脂涂料:1-3份、填料:5-12份、三聚磷酸钠:2-4份、封闭剂:2-3份、γ-氨丙基三乙氧基硅烷:5-7份、偶联剂:2-4份、稳定剂:1-3份。
2.根据权利要求1所述的一种抗腐蚀装置用传热不锈钢管,其特征在于,所述填料包括滑石粉、石墨、聚偏氟乙烯一种或多种混合物。
3.根据权利要求1所述的一种抗腐蚀装置用传热不锈钢管,其特征在于,所述抗腐蚀层按质量份数计包括以下组分:氟碳树脂:30份、环氧树脂:50份、聚四氟乙烯树脂:15份、聚苯硫醚树脂:13份、玻璃纤维:5份、羟丙基甲基纤维素:11份、有机硅:3份、复合稀土:0.5份、乙烯基醚共聚物:6份、三氟氯乙烯:4份、空玻璃微珠:10份、三乙醇胺:3份、有机膨润土:10份、聚亚胺脂涂料:1份、填料:5份、三聚磷酸钠:2份、封闭剂:2份、γ-氨丙基三乙氧基硅烷:5份、偶联剂:2份、稳定剂:1份。
4.根据权利要求1所述的一种抗腐蚀装置用传热不锈钢管,其特征在于,所述抗腐蚀层按质量份数计包括以下组分:氟碳树脂:35份、环氧树脂:55份、聚四氟乙烯树脂:18份、聚苯硫醚树脂:17份、玻璃纤维:10份、羟丙基甲基纤维素:12份、有机硅:4份、复合稀土:1份、乙烯基醚共聚物:8份、三氟氯乙烯:6份、空玻璃微珠:13份、三乙醇胺:5份、有机膨润土:13份、聚亚胺脂涂料:2份、填料:9份、三聚磷酸钠:3份、封闭剂:2份、γ-氨丙基三乙氧基硅烷:6份、偶联剂:3份、稳定剂:2份。
5.根据权利要求1所述的一种抗腐蚀装置用传热不锈钢管,其特征在于,所述抗腐蚀层(2)呈斜纹状,均匀开设于内管(1)侧壁的表面。
6.根据权利要求1所述的一种抗腐蚀装置用传热不锈钢管,其特征在于,所述隔热机构包括隔断(6)与填充料(7),所述隔断(6)将内管(1)与外管(3)之间分割成若干个区域,所述填充料(7)分别填充在隔断(6)内。
7.根据权利要求1所述的一种抗腐蚀装置用传热不锈钢管,其特征在于,所述内管(1)的厚度为25-35mm,所述外管(3)的厚度为25-35mm。
8.根据权利要求1所述的一种抗腐蚀装置用传热不锈钢管,其特征在于,所述内管(1)与外管(3)均为316不锈钢。
9.根据权利要求6所述的一种抗腐蚀装置用传热不锈钢管,其特征在于,所述填充料(7)的材质为碳纤维颗粒,所述碳纤维颗粒的尺寸为3-6mm。
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