CN111826239A - 一种燃烧室清洁养护剂配方及制备方法 - Google Patents
一种燃烧室清洁养护剂配方及制备方法 Download PDFInfo
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Abstract
本发明公开了一种燃烧室清洁养护剂配方及制备方法，包括表面活性剂、芳烃溶剂、缓蚀剂、抗氧剂和溶剂，所述聚丙二醇含量为68.0‑68.5％，所述烷基酚聚氧乙烯醚含量9.0‑9.5％，所述C10芳香烃溶剂19.7‑20.2％，所述C9芳香烃溶剂含量0.7‑0.9％，所述苯并三氮唑含量1.5‑2.0％，所述受阻酚类抗氧剂含量0.05‑0.1％，所述N,N‑二甲基甲酰胺含量0.3‑4.0％。本发明对进气阀沉积物清洗下降率达100％；既具有适宜的高温稳定性和分解性，又能有效清除喷油嘴和进气阀沉积物，又可确保在燃烧室高温中完全分解，还能大幅清除燃烧室沉积物；具有优异的氧化安定性能，具有3年以上的安全贮存期；可以有效破除乳性与防锈性能不足带来的发动机损伤。
Description
技术领域
本发明涉及燃烧室清洁养护剂领域，具体是一种燃烧室清洁养护剂配方及制备方法。
背景技术
燃烧室是燃料或推进剂在其中燃烧生成高温燃气的装置，是一种用耐高温合金材料制作的燃烧设备。活塞到达上止点后其顶部与汽缸盖之间的空间，燃料即在此室燃烧。它是燃气涡轮发动机、冲压发动机、火箭发动机的重要部件。燃烧室内容易有积碳，需要用一些清洁剂进行清洁养护，现有的清洁养护剂清洁效果不佳，贮存时间较短，氧化安定性能较差，防锈性和破乳性不足。
发明内容
本发明要解决的技术问题就是克服以上的技术缺陷，提供一种燃烧室清洁养护剂配方及制备方法。
为了解决上述问题，本发明的技术方案为：一种燃烧室清洁养护剂配方，包括表面活性剂、芳烃溶剂、缓蚀剂、抗氧剂和溶剂，所述表面活性剂包括聚丙二醇和烷基酚聚氧乙烯醚，所述芳烃溶剂包括C10芳香烃溶剂和C9芳香烃溶剂，所述缓蚀剂为苯并三氮唑，所述抗氧剂为受阻酚类抗氧剂，所述溶剂为N,N-二甲基甲酰胺，所述聚丙二醇含量为68.0-68.5％，所述烷基酚聚氧乙烯醚含量9.0-9.5％，所述C10芳香烃溶剂19.7-20.2％，所述C9芳香烃溶剂含量0.7-0.9％，所述苯并三氮唑含量1.5-2.0％，所述受阻酚类抗氧剂含量0.05-0.1％，所述N,N-二甲基甲酰胺含量0.3-4.0％。
一种燃烧室清洁养护剂配方，其制备方法包括以下步骤：
(1)在常温下现将C10芳香烃溶剂和C9芳香烃溶剂加入搅拌设备，再将N,N-二甲基甲酰胺加入，进行搅拌融合；
(2)再将聚丙二醇和烷基酚聚氧乙烯醚加入、搅拌融合10分钟；
(3)再将苯并三氮唑与受阻酚类抗氧剂加入混合搅拌30分钟，搅拌后得到一种清洗汽车燃烧室顽固积碳的产品。
本发明与现有的技术相比的优点在于：对进气阀沉积物清洗下降率达100％；既具有适宜的高温稳定性和分解性，又能有效清除喷油嘴和进气阀沉积物，又可确保在燃烧室高温中完全分解，还能大幅清除燃烧室沉积物；具有优异的氧化安定性能，具有3年以上的安全贮存期；可以有效破除乳性与防锈性能不足带来的发动机损伤。
具体实施方式
以下通过具体实施例进一步描述本发明，但本发明不仅仅限于以下实施例。在本发明的范围内或者在不脱离本发明的内容、精神和范围内，对本发明进行的变更、组合或替换，对于本领域的技术人员来说是显而易见的，且包含在本发明的范围之内。
一种燃烧室清洁养护剂配方，包括表面活性剂、芳烃溶剂、缓蚀剂、抗氧剂和溶剂，所述表面活性剂包括聚丙二醇和烷基酚聚氧乙烯醚，所述芳烃溶剂包括C10芳香烃溶剂和C9芳香烃溶剂，所述缓蚀剂为苯并三氮唑，所述抗氧剂为受阻酚类抗氧剂，所述溶剂为N,N-二甲基甲酰胺，所述聚丙二醇含量为68.0-68.5％，所述烷基酚聚氧乙烯醚含量9.0-9.5％，所述C10芳香烃溶剂19.7-20.2％，所述C9芳香烃溶剂含量0.7-0.9％，所述苯并三氮唑含量1.5-2.0％，所述受阻酚类抗氧剂含量0.05-0.1％，所述N,N-二甲基甲酰胺含量0.3-4.0％。
一种燃烧室清洁养护剂配方，其制备方法包括以下步骤：
(1)在常温下现将C10芳香烃溶剂和C9芳香烃溶剂加入搅拌设备，再将N,N-二甲基甲酰胺加入，进行搅拌融合；
(2)再将聚丙二醇和烷基酚聚氧乙烯醚加入、搅拌融合10分钟；
(3)再将苯并三氮唑与受阻酚类抗氧剂加入混合搅拌30分钟，搅拌后得到一种清洗汽车燃烧室顽固积碳的产品。
本发明参照CAQI1311-2016《汽油发动机燃油系统免拆清洗液》附录A参照的试验方法，改变实验条件，设定沉降物收集器温度为175℃、沉积物质量18毫克，汽油加剂量0.5％(体积)、喷射时间10分钟，模拟进气阀沉积物清洗下降率高达100％。试验数据显示，具有优良的清洗功能性。
清洁养护剂降低燃烧室总沉积物的数据，经国家环境科学院M111台架试验所证实。对于缸内直喷发动机，更具有完美性能体现，可清除95％以上燃烧室沉积物。
清洁养护剂按在汽油中以0.5％(体积)的规定添加量调合后，其防锈性(锈蚀率)为0％。破乳性方面，界面为1b，相分离为≤2，均符合GB 19592《车用汽油清净剂》的质量要求，可有效消除破乳性与防锈性能不足带来的发动机损伤。
本发明的理化指标如表1所示：
表1
| 检测项目 | 技术要求 | 典型指标 | 检测方法 |
| 外观 | 清澈透明 | 清澈透明 | 目测 |
| 密度(20℃)，g/cm<sup>3</sup> | 1.0±0.01 | 0.9985 | GB/T 1884 |
| 倾点，℃ | -26±6 | -26 | GB/T 3535 |
| 闪点(开口)，℃ | 264±16 | 264 | GB/T 3536 |
| 运动粘度(100℃)，mm<sup>2</sup>/s | 12±1 | 12.14 | GB/T 265 |
与汽油的调合添加量为5000ppm(即按0.5％体积比)，建议单瓶分装量为250-350ml，可掺兑容量50-70L的一箱燃油使用，采用200Kg铁桶(或塑料桶)包装。
本发明与汽油混合后技术指标(按汽油0.5％体积比添加量时)，其数据如表2所示：
表2
实施例一
测试条件：福特新蒙迪欧2014款
发动机型号/类型：CAF488WQ3(2.0L/149.3KW、直列四缸、涡
轮增压/缸内直喷)
行驶里程：35094.6公里
样品添加量：0.5％(体积)
1.按0.5％(体积)的添加量，将310ml的F9322样品加注至燃油箱(油箱容积为62L)中，将车辆注满92#汽油至跳枪；
2.试验路况为无拥堵高速公路，行车路线为北京-天津武清-河北唐山-北京；
3.全程按80-110km/h匀速行驶，直至燃油报警(仪表显示余油仅可行驶20km)，测试总行程628km；
4.再次给车辆加油，起动发动机，使车辆保持4000-5000rpm空转5-6min。
其清洗效果对比如表3所示：
表3
不同添加比例及品牌的模拟清洗实验的条件如表4所示：
表4
当需要重复试验时，建议使用LYFJ-31汽油发动机进气系统模拟清洗试验仪，将具更优模拟特性和平行性。本次试验考虑到L-2仪器应用较为普及，为便于用户试验比较，因此仍采用该仪器进行模拟测试。
以上所述仅为本发明专利的较佳实施例而已，并不用以限制本发明专利，凡在本发明专利的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明专利的保护范围之内。
Claims (2)
1.一种燃烧室清洁养护剂配方，其特征在于：包括表面活性剂、芳烃溶剂、缓蚀剂、抗氧剂和溶剂，所述表面活性剂包括聚丙二醇和烷基酚聚氧乙烯醚，所述芳烃溶剂包括C10芳香烃溶剂和C9芳香烃溶剂，所述缓蚀剂为苯并三氮唑，所述抗氧剂为受阻酚类抗氧剂，所述溶剂为N,N-二甲基甲酰胺，所述聚丙二醇含量为68.0-68.5％，所述烷基酚聚氧乙烯醚含量9.0-9.5％，所述C10芳香烃溶剂19.7-20.2％，所述C9芳香烃溶剂含量0.7-0.9％，所述苯并三氮唑含量1.5-2.0％，所述受阻酚类抗氧剂含量0.05-0.1％，所述N,N-二甲基甲酰胺含量0.3-4.0％。
2.根据权利要求1所述的一种燃烧室清洁养护剂配方，其特征在于，其制备方法包括以下步骤：
(1)在常温下现将C10芳香烃溶剂和C9芳香烃溶剂加入搅拌设备，再将N,N-二甲基甲酰胺加入，进行搅拌融合；
(2)再将聚丙二醇和烷基酚聚氧乙烯醚加入、搅拌融合10分钟；
(3)再将苯并三氮唑与受阻酚类抗氧剂加入混合搅拌30分钟，搅拌后得到一种清洗汽车燃烧室顽固积碳的产品。
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