CN113372985A - 一种导热油在线高温清洗剂及其制备方法和使用方法 - Google Patents
一种导热油在线高温清洗剂及其制备方法和使用方法 Download PDFInfo
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Abstract
本发明公开了一种导热油在线高温清洗剂,包括以下重量份数的原料:C13‑C15烷烃基础油20‑30份、C16‑C20芳烃基础油60‑75份、丁二酰亚胺类无灰分散剂2‑12份、表面活性剂4‑9份、缓蚀剂0.2‑0.8份、抗氧剂0.1‑1份;还公开了上述原料的制备方法和使用方法。本发明中以基础油为主料得到的清洗剂,能够清除导热油系统中的结构、炭化等污垢,还能够进入导热系统参与导热循环成为导热油的组分;而且整个过程不会有废水、废气的产生,安全环保。
Description
技术领域
本发明涉及清洗剂技术领域,更具体的说是涉及一种导热油在线高温清洗剂及其制备方法和使用方法。
背景技术
导热油作为传导热量的介质,具有热效率高、传热均匀;在较低的操作压力下能获得较高的温度;节约能源和水资源;输送方便、易于实现温度自动控制;运行设备投资小;有益环境保护等优点,因此在化学工业、制药工业、食品加工、酿造工业等诸多热交换装置及居室采暖设备中得到广泛应用。
导热油加热系统在长期使用过程中,由于导热油高温氧化及加热炉内过热会导致导热油一系列物理变化,如粘度、残炭、酸值等指标上升,导热油形成不溶物,这些不溶物沉积在系统内表面,甚至换热设备内壁出现结焦。导致系统阻力增大,设备器壁被腐蚀,传热效率降低。
导热油传热系统运行一段时间后,不得不停止运行,对导热油进行再生处理,并对系统设备进行清洗。耗资、费时、影响生产、污染环境;如果再生、清洗不及时且清洗不完全还可能导致换热设备器壁局部过热引发的燃烧、爆炸事故。
因此,如何提供一种高效、耐高温且清洁效果好的导热油在线高温清洗剂是本领域技术人员亟需解决的问题。
发明内容
有鉴于此,本发明提供了一种高效、耐高温且清洁效果的导热油在线高温清洗剂及其制备方法和使用方法。
为了实现上述目的,本发明采用如下技术方案:一种导热油在线高温清洗剂,包括以下重量份数的原料:C13-C15烷烃基础油20-30份、C16-C20芳烃基础油60-75份、丁二酰亚胺类无灰分散剂2-12份、表面活性剂4-9份、缓蚀剂0.2-0.8份、抗氧剂0.1-1份。
本发明的有益效果:本发明中以基础油为主料得到的清洗剂,能够清除导热油系统中的结构、炭化等污垢,还能够进入导热系统参与导热循环成为导热油的组分;而且整个过程不会有废水、废气的产生,安全环保。
优选地,所述C13-C15烷烃基础油和C16-C20芳烃基础油在100℃的黏度为3.2-5.5mm2/s。
采用上述技术方案的有益效果:超过5.5mm2/s将影响低温黏度特性,低于3.2mm2/s会影响油膜强度破坏摩擦特性,同时蒸发损失会增大;而在本发明中的黏度范围内不会影响整个体系的性能。
优选地,所述丁二酰亚胺类无灰分散剂为聚异丁烯丁二酰亚胺、硼化聚异丁烯双丁二酰亚胺和丁二烯亚胺中的一种或几种的组合。
采用上述技术方案的有益效果:采用上述原料能够达到结焦物达到溶解的效果。
优选地,所述表面活性剂为聚氧乙烯辛基苯酚醚、烷基酚聚氧乙烯醚、烷脂肪醇聚氧乙烯醚和脂肪醇聚氧乙烯醚中的一种或几种的组合。
采用上述技术方案的有益效果:采用上述原料能够在油垢表面进行吸附,使其润湿、膨胀,而后行积极渗透到油垢间隙,使油污物在有机清洗剂组合物的作用下逐渐卷缩成胶束,经泵连续循环冲刷,使得油垢逐渐脱离管壁。
优选地,所述缓蚀剂为邻苯硫脲、硫磷双辛基碱性锌盐和硅酸钠中的一种或几种的组合。
采用上述技术方案的有益效果:采用上述原料能够有效地抑制金属管路腐蚀。
优选地,所述抗氧剂为2-6-二叔丁基-4-甲基苯酚、1-苯基-α萘胺、二苯胺和3,5-二叔丁基-4-羟苯基中的一种或几种的组合。
本发明中公开了一种导热油在线高温清洗剂的制备方法,包括以下步骤:
(1)按照所述的导热油在线高温清洗剂的重量份数称取各原料,备用;
(2)将C13-C15烷烃基础油和C16-C20芳烃基础油混合,加热至55-65℃得到混合基础油;
(3)在混合基础油中添加丁二酰亚胺类无灰分散剂、表面活性剂、缓蚀剂及抗氧剂,搅拌均匀,得到所述的导热油在线高温清洗剂。
优选地,步骤(3)中,所述搅拌温度为60-70℃,时间为40-60min,速率为200-600r/min。
本发明中的制备方法简单,易操作,更加适用于大工业化生产。
本发明中还提供了一种导热油在线高温清洗剂的使用方法,将导热油在线高温清洗剂泵一次性泵入至导热油循环系统中,且其用量为导热油总重量的0.8-3%。
采用本发明中的清洗剂用量少,能够降低成本。
具体实施方式
下面将结合本发明实施例,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
实施例1
导热油在线高温清洗剂,包括以下原料:C13烷烃基础油20kg、C16芳烃基础油60kg、丁二酰亚胺类无灰分散剂(聚异丁烯基丁二酰亚胺)2kg、表面活性剂(聚氧乙烯辛基苯酚醚)4kg、缓蚀剂(硫磷双辛基碱性锌盐)0.2kg、抗氧剂(1-苯基-α萘胺0.06kg、二苯胺0.04kg)0.1kg。
上述导热油在线高温清洗剂的制备方法包括以下步骤:
(1)按照导热油在线高温清洗剂的重量称取各原料,备用;
(2)将C13烷烃基础油和C16芳烃基础油混合,加热至55℃得到混合基础油;
(3)在混合基础油中添加丁二酰亚胺类无灰分散剂、表面活性剂、缓蚀剂及抗氧剂,在60℃、200r/min的条件下搅拌40min,得到导热油在线高温清洗剂。
导热油在线高温清洗剂的使用方法:将导热油在线高温清洗剂泵一次性泵入至导热油循环系统中,且其用量为导热油总重量的2%。
实施例2
导热油在线高温清洗剂,包括以下原料:C15烷烃基础油30kg、C20芳烃基础油75kg、丁二酰亚胺类无灰分散剂(硼化聚异丁烯双丁二酰亚胺5kg、丁二烯亚胺7kg)12kg、表面活性剂(烷基酚聚氧乙烯醚4kg、烷脂肪醇氧乙烯醚5kg)9kg、缓蚀剂(邻苯硫脲0.3kg、硫磷双辛基碱性锌盐0.2kg和硅酸钠0.3kg)0.8kg、抗氧剂(2-6-二叔丁基-4-甲基苯酚0.5g、1-苯基-α萘胺0.5g)1kg。
上述导热油在线高温清洗剂的制备方法包括以下步骤:
(1)按照导热油在线高温清洗剂的重量称取各原料,备用;
(2)将C15烷烃基础油和C20芳烃基础油混合,加热至65℃得到混合基础油;
(3)在混合基础油中添加丁二酰亚胺类无灰分散剂、表面活性剂、缓蚀剂及抗氧剂,在70℃、600r/min的条件下搅拌60min,得到导热油在线高温清洗剂。
导热油在线高温清洗剂的使用方法:将导热油在线高温清洗剂泵一次性泵入至导热油循环系统中,且其用量为导热油总重量的2%。
实施例3
导热油在线高温清洗剂,包括以下原料:C14烷烃基础油25kg、C18芳烃基础油70kg、丁二酰亚胺类无灰分散剂(聚异丁烯基丁二酰亚胺5kg、硼化聚异丁烯双丁二酰亚胺2kg)7kg、表面活性剂(烷基酚聚氧乙烯醚3kg、烷脂肪醇氧乙烯醚4kg)7kg、缓蚀剂(硫磷双辛基碱性锌盐0.2kg、硅酸钠0.3kg)0.5kg、抗氧剂(二苯胺和3,5-二叔丁基-4-羟苯基)0.6kg。
上述导热油在线高温清洗剂的制备方法包括以下步骤:
(1)按照导热油在线高温清洗剂的重量称取各原料,备用;
(2)将C14烷烃基础油和C18芳烃基础油混合,加热至60℃得到混合基础油;
(3)在混合基础油中添加丁二酰亚胺类无灰分散剂、表面活性剂、缓蚀剂及抗氧剂,在65℃、400r/min的条件下搅拌50min,得到导热油在线高温清洗剂。
导热油在线高温清洗剂的使用方法:将导热油在线高温清洗剂泵一次性泵入至导热油循环系统中,且其用量为导热油总重量的2%。
对比例1
与实施例2的不同之处在于,将烷烃基础油和芳烃基础油换成煤油。
性能测试
采用实施例1-3及对比例1对于导热油循环系统循环使用2天和5天的清洗率如下表1:
2天清洗率(%) | 5天清洗率(%) | |
实施例1 | 89.9 | 98.5 |
实施例2 | 91.5 | 99 |
实施例3 | 90.2 | 98.2 |
对比例1 | 80.9 | 85.6 |
由上述表1中可以得出,本发明中的清洗剂清洗率最高可达99%,而且用量较少,安全环保,节约成本;相对于对比例来说具有显著的进步。
对所公开的实施例的上述说明,使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的,本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下,在其它实施例中实现。因此,本发明将不会被限制于本文所示的这些实施例,而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。
Claims (9)
1.一种导热油在线高温清洗剂,其特征在于,包括以下重量份数的原料:C13-C15烷烃基础油20-30份、C16-C20芳烃基础油60-75份、丁二酰亚胺类无灰分散剂2-12份、表面活性剂4-9份、缓蚀剂0.2-0.8份、抗氧剂0.1-1份。
2.根据权利要求1所述的一种导热油在线高温清洗剂,其特征在于,所述C13-C15烷烃基础油和C16-C20芳烃基础油在100℃的黏度为3.2-5.5mm2/s。
3.根据权利要求1所述的一种导热油在线高温清洗剂,其特征在于,所述丁二酰亚胺类无灰分散剂为聚异丁烯基丁二酰亚胺、硼化聚异丁烯双丁二酰亚胺和丁二烯亚胺中的一种或几种的组合。
4.根据权利要求1所述的一种导热油在线高温清洗剂,其特征在于,所述表面活性剂为聚氧乙烯辛基苯酚醚、烷基酚聚氧乙烯醚、烷脂肪醇氧乙烯醚、和脂肪醇氧乙烯醚中的一种或几种的组合。
5.根据权利要求1所述的一种导热油在线高温清洗剂,其特征在于,所述缓蚀剂为邻苯硫脲、硫磷双辛基碱性锌盐和硅酸钠中的一种或几种的组合。
6.根据权利要求1所述的一种导热油在线高温清洗剂,其特征在于,所述抗氧剂为2-6-二叔丁基-4-甲基苯酚、1-苯基-α萘胺、二苯胺和3,5-二叔丁基-4-羟苯基中的一种或几种的组合。
7.一种导热油在线高温清洗剂的制备方法,其特征在于,包括以下步骤:
(1)按照权利要求书1-6任一项所述的导热油在线高温清洗剂的重量份数称取各原料,备用;
(2)将C13-C15烷烃基础油和C16-C20芳烃基础油混合,加热至55-65℃得到混合基础油;
(3)在混合基础油中添加丁二酰亚胺类无灰分散剂、表面活性剂、缓蚀剂及抗氧剂,搅拌均匀,得到所述的导热油在线高温清洗剂。
8.根据权利要求7所述的一种导热油在线高温清洗剂的制备方法,其特征在于,步骤(3)中,所述搅拌温度为60-70℃,时间为40-60min,速率为200-600r/min。
9.一种导热油在线高温清洗剂的使用方法,其特征在于,将权利要求1-6任一项所述的导热油在线高温清洗剂或权利要求7所述的制备方法制得的导热油在线高温清洗剂泵一次性泵入至导热油循环系统中,且其用量为导热油总重量的0.8-3%。
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