CN111117737A - 一种抗燃且油溶性强的冷冻机油及其制备方法 - Google Patents

一种抗燃且油溶性强的冷冻机油及其制备方法 Download PDF

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CN111117737A
CN111117737A CN201911207947.9A CN201911207947A CN111117737A CN 111117737 A CN111117737 A CN 111117737A CN 201911207947 A CN201911207947 A CN 201911207947A CN 111117737 A CN111117737 A CN 111117737A
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陈星宇
朱建红
王洁颖
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Jiangsu Shuangjiang Energy Technology Co ltd
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Abstract

本发明公开了一种抗燃且油溶性强的冷冻机油及其制备方法，选用三次加氢及以上精制技术生产的环烷基基础油，具有稳定性强，饱和烃含量高等特点，有很强的抗氧化能力；环烷基基础油采用络合脱氮‑白土精制技术，对基础油作再进一步的精制处理，脱除硫、氮元素及不饱和杂环分子，并严格控制馏程指标，选取馏程在260‑360℃之间的馏分，初馏点与终馏点温度差不超过100℃，使本产品具有优秀的低温性能，且环烷基油具有良好的油泥溶解性能；由于矿物油的闪点不高，采用闪点高的四羟甲基甲烷酯进行基础油组合，得到油泥溶解性、低温性能、氧化安定性且抗燃性优异的冷冻机油。

Description

一种抗燃且油溶性强的冷冻机油及其制备方法
技术领域
本发明属于润滑油技术领域，具体涉及一种抗燃且油溶性强的冷冻机油及其制备方法。
背景技术
在蒸气压缩式制冷系统中，冷冻机油是压缩机内用的润滑油，起着润滑压缩机的各运动部件，密封以及降噪的作用。同时，冷冻机油还可用作传热介质来冷却压缩机，且部分随着制冷剂一起循环，影响蒸发器和冷凝器的换热性能。优选的冷冻机油可以提高压缩机的机械效率，减小运动部件的磨损，提高压缩机的制冷性能。
由于制冷设备的使用环境越来复杂，导致设备在复杂环境中运行时，冷冻机油经氧化容易产生油泥且阻塞内部管道，使得制冷设备能耗增加，甚至不能正常运行。在炎热的夏日，对于制冷设备的环境就更加苛刻。因此，冷冻机油的性能改善，尤其是油溶性以及抗燃性的改善，是提高制冷设备正常运行且降低能耗的方法之一。
发明内容
本发明所要解决的技术问题是提供了一种具有良好的氧化安定性能、安全性能、油泥溶解性能的抗燃且油溶性强的冷冻机油。
本发明专利的技术方案是这样实现的：
一种抗燃且油溶性强的冷冻机油，按照质量百分数计算，包括以下组分：
基础油96%-99.5%，该基础油由三次加氢环烷基基础油与四羟甲基甲烷酯组成；
润滑油添加剂0.5%-4%，该润滑油添加剂由酚类抗氧剂0.3%-2%、抗磨剂0.05%-0.5%、酸捕捉剂0.03%-0.7%、金属钝化剂0.1%-0.55%、消泡剂0.02%-0.25%。
优选地，所述三次加氢环烷基基础油与四羟甲基甲烷酯的质量比为60%-90%：40%-10%。选用三次加氢及以上精制技术生产的环烷基基础油，具有稳定性强，饱和烃含量高等特点，有很强的抗氧化能力；环烷基基础油采用络合脱氮-白土精制技术，对基础油作再进一步的精制处理，脱除硫、氮元素及不饱和杂环分子，并严格控制馏程指标，选取馏程在260-360℃之间的馏分，初馏点与终馏点温度差不超过100℃，使本产品具有优秀的低温性能，且环烷基油具有良好的油泥溶解性能；由于矿物油的闪点不高，采用闪点高的四羟甲基甲烷酯进行基础油组合，得到油泥溶解性、低温性能、氧化安定性且抗燃性优异的冷冻机油。
优选地，所述酚类抗氧剂为2,6-二叔丁基对甲酚。
优选地，所述抗磨剂为磷酸三苯酯、氯化磷酸酯的混合物。
优选地，所述酸捕捉剂为烷基缩水甘油醚型化合物。
优选地，所述金属钝化剂为苯并三唑衍生物与噻唑类衍生物的混合物。
优选地，所述消泡剂为聚醚改性有机硅。
本发明的抗燃且油溶性强的冷冻机油的制备方法：
按照比例称取上述组分，加热至50℃-85℃，搅拌混合1小时至3小时，后精滤得到成品。
本发明的抗燃且油溶性强的冷冻机油的开口闪点优异，开口闪点可达230℃；氧化安定性能良好，旋转氧弹（快速氧化法）可达600min以上，且油泥溶解性能优异。
具体实施方式
实施例1
一种抗燃且油溶性强的冷冻机油，按照质量百分数计算，包括以下组分：基础油为三次加氢环烷基基础油与四羟甲基甲烷酯的质量比为70：30；抗氧剂0.3%、抗磨剂0.05%、酸捕捉剂0.2%、金属钝化剂0.18%、消泡剂0.01%，其余量为基础油。
实施例2
一种抗燃且油溶性强的冷冻机油，按照质量百分数计算，包括以下组分：基础油为III类环烷基基础油与四羟甲基甲烷酯的质量比为80：20；抗氧剂0.5%、抗磨剂0.1%、酸捕捉剂0.25%、金属钝化剂0.1%、消泡剂0.012%，其余量为基础油。
实施例3
一种抗燃且油溶性强的冷冻机油，按照质量百分数计算，包括以下组分：基础油为III类环烷基基础油与四羟甲基甲烷酯的质量比为90：10；抗氧剂1.0%、抗磨剂0.12%、酸捕捉剂0.05%、金属钝化剂0.16%、消泡剂0.02%，其余量为基础油。
试验例
将实施例1-3得到的抗燃且油溶性强的冷冻机油进行相关指标检测，检测数据如下表：
表1：实施例1-3抗燃且油溶性强的冷冻机油检测数据表
检测项目 实例1 实例2 实例3 试验方法
40℃粘度，mm<sup>2</sup>/s 12.36 11.64 10.34 ASTMD7042
粘度指数 140 127 108 ASTMD2270
闪点（开口），℃ 245 237 232 GB/T3536
液相锈蚀（合成海水） 无锈 无锈 无锈 GB/T11143
倾点，℃ -45 -48 -50 GB/T3535
机械杂质 无 无 无 GB/T511
酸值，mgKOH/g 0.01 0.01 0.01 GB/T264
铜片腐蚀（100℃，3h） 1b 1b 1b GB/T5096
旋转氧弹，min 694 657 607 SH/T0193
本领域的技术人员容易理解，以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (8)

1.一种抗燃且油溶性强的冷冻机油，其特征在于：所述的抗燃且油溶性强的冷冻机油按照质量份包括以下组成：基础油96%-99.5%，该基础油由三次加氢环烷基基础油与四羟甲基甲烷酯组成；润滑油添加剂0.5%-4%，该润滑油添加剂由酚类抗氧剂0.3%-2%、抗磨剂0.05%-0.5%、酸捕捉剂0.03%-0.7%、金属钝化剂0.1%-0.55%、消泡剂0.02%-0.25%。
2.如权利要求1所述的抗燃且油溶性强的冷冻机油，其特征在于，所述三次加氢环烷基基础油与四羟甲基甲烷酯的质量比为60%-90%：40%-10%。
3.如权利要求1所述的抗燃且油溶性强的冷冻机油，其特征在于，所述酚类抗氧剂为2,6-二叔丁基对甲酚；所述消泡剂为聚醚改性有机硅。
4.如权利要求1所述的抗燃且油溶性强的冷冻机油，其特征在于，所述抗磨剂为磷酸三苯酯、氯化磷酸酯的混合物。
5.如权利要求1所述的抗燃且油溶性强的冷冻机油，其特征在于，所述酸捕捉剂为烷基缩水甘油醚型化合物。
6.如权利要求1所述的抗燃且油溶性强的冷冻机油，其特征在于，所述金属钝化剂为苯并三唑衍生物与噻唑类衍生物的混合物。
7.如权利要求1所述的抗燃且油溶性强的冷冻机油，其特征在于，所述金属钝化剂为苯并三唑衍生物与噻唑类衍生物的混合物。
8.一种如权利要求1-7所述的抗燃且油溶性强的冷冻机油的制备方法，其特征在于，按照比例称取各个组分，然后混合均，将混合均匀的材料加热至50℃-85℃，搅拌混合1小时至3小时，后精滤得到成品。
CN201911207947.9A 2019-11-30 2019-11-30 一种抗燃且油溶性强的冷冻机油及其制备方法 Pending CN111117737A (zh)

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