CN1256464C - 燃气轮机叶片的化学清洁溶液 - Google Patents

燃气轮机叶片的化学清洁溶液 Download PDF

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CN1256464C
CN1256464C CNB008178046A CN00817804A CN1256464C CN 1256464 C CN1256464 C CN 1256464C CN B008178046 A CNB008178046 A CN B008178046A CN 00817804 A CN00817804 A CN 00817804A CN 1256464 C CN1256464 C CN 1256464C
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weight
cleaning compositions
crown ether
cleaning
aromatic solvent
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CN1413270A (zh
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墨森·C·阿米兰
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Biogenesis Enterprises Inc
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Biogenesis Enterprises Inc
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    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
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    • C11D3/33—Amino carboxylic acids
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    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
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Abstract

本发明涉及含有羟基化润湿剂、螯合剂、乳化剂、任选含有的冠醚和任选含有的非芳族溶剂的化学清洁组合物。该清洁组合物是100%可生物降解的、水基的并且能够除去粒度小于35微米的附着微粒。本发明还涉及一种清洁物件如燃气轮机发动机的方法。

Description

燃气轮机叶片的化学清洁溶液
发明领域
本发明涉及一种用于燃气轮机叶片的化学清洁溶液。具体地说，本发明涉及含有羟基化润湿剂、螯合剂、乳化剂、任选含有的冠醚和任选含有的非芳族溶剂的清洁组合物。
背景技术
工业燃气轮机在世界范围内使用。燃气轮机的实例是SolarTurbine，Inc.制造的Mars燃气轮机(Mars Gas Turbine)或Taurus 70燃气轮机(Taurus 70 Gas Turbine)。Mars涡轮机具有一个15级压缩机，每级由一排固定的叶片(静叶片)和一排旋转的叶片组成。第一级的叶片最大而第15级的叶片最小。在操作过程中，空气被抽至压缩机的发散型通道内并经过各级压缩。
静叶片在各级中引导压缩空气通过其相伴的旋转叶片排。固定和旋转叶片的翼片被设计为最大效率。然而，由于连续操作的原因，在这些翼片的前缘上会堆积污染物。所以，损失了压缩机部分的总效率。从而降低了可用功率。Mars涡轮发动机在满额定马力下每秒可以压缩约90磅的空气。每一标准立方英尺的空气中只存在少量的空气污染物。然而，由于大量的空气穿过涡轮，这些污染物逐渐增多。此外，空气以室温进入到涡轮中并以约630°F离开压缩机。大部分的效率损失是在头三或四级产生，而且一旦有污染物附着叶片非常难以清洁。
所以，必须清洁燃气轮机，通常是每个月清洁，以保持操作效率和最大可用功率。清洁燃气轮机的方式主要有两种。一种是曲柄清洁法，另一种是在线清洁法。曲柄清洁法在这两种方式中更常见。在清洁过程中，每个涡轮使用约2加仑的清洁剂来洗净轮机，另外用1-2加仑来清洗外壳。在操作车间中也可以用相同的清洁剂来进行一般的清洁工作。所以，非常需要优良的燃气轮机清洁剂。
燃气轮机曲柄清洁法是一种通过把清洁溶液引入到叶轮机的涡轮压缩机入口同时缓慢摇动曲柄的方法。这种缓慢的摇动曲柄是在冷机时进行的，不点火也不引入燃料。市场上存在许多种类的涡轮压缩机清洁剂，包括：Penetone Corporation的Penetone19；Conntect，Inc.的Conntect5000；Turco Products，Inc.的Turco6783系列；ZOKIncorporated的ZOK27；和Rochem Corporation的Fyrewash。
然而，现有清洁产品存在一些缺点。这些缺点包括过度发泡、较长的浸透过程、低水溶性、残留清洁剂、无法除去小于35微米的附着微粒，以及不是100％的可生物降解。现有产品克服了上述的某些缺点，然而，无一产品能够克服上述所有这些缺点。从环境安全现代趋势的观点考虑最重要的是产品应100％可生物降解。此外，现有水基产品无法除去粒径小于35微米的附着颗粒。此类微粒只能通过使用某些种类的基于溶剂的化学品才能除去。因此，迄今为止还没有一种清洁溶液是基于水且可以除去小于35微米的颗粒的。
发明概述
本发明涉及能克服所有上述缺点的100％可生物降解的、水基的并能够除去粒度小于35微米的附着微粒的燃气轮机清洁剂。
在一种实施方式中，本发明涉及一种含有羟基化润湿剂、螯合剂、乳化剂和冠醚的组合物。在本发明的一种实施方式中，本发明组合物包含(1)约10％-约60％，优选约30％-约50％，更优选约38％-约42％(重量)的羟基化润湿剂，(2)约20％-约40％，优选约25％-约35％，更优选约29％-约31％(重量)的螯合剂，(3)约1％-约45％，优选约15％-约35％，更优选约20％-约30％(重量)的乳化剂，和(4)约0.01％-约2％，优选约0.05％-约1.25％，更优选约0.5％-约1％(重量)的冠醚。这些％(重量)值均基于该组合物的总重量。
在本发明的另一实施方式中，本发明组合物含有羟基化润湿剂、螯合剂和乳化剂。在本发明的该实施方式中不存在冠醚。
在另一实施方式，本发明组合物含有羟基化润湿剂、螯合剂、乳化剂、冠醚和非芳族溶剂。在这个实施方式中，本发明组合物含有(1)约10％-约60％，优选约30％-约50％，更优选约38％-约42％(重量)的羟基化润湿剂，(2)约1％-约30％，优选约15％-约25％，更优选约19％-约21％(重量)的螯合剂，(3)约1％-约45％，优选约15％-约35％，更优选约20％-约30％(重量)的乳化剂，(4)约0.01％-约2％，优选约0.05％-约1.25％，更优选约0.5％-约1％(重量)的冠醚，和(5)约1％-约20％，优选约5％-约15％，更优选约9％-约11％的非芳族溶剂。这些％(重量)值均基于该组合物的总重量。
在另一实施方式中，本发明组合物含有羟基化润湿剂、螯合剂、乳化剂和非芳族溶剂。在本发明的这个实施方式中不存在冠醚。
在一种实施方式中，本发明的羟基化润湿剂是含有2-6个碳原子和2-4个羟基的羟基化烃。具体地说，碳原子与羟基的比例是1.0到0.75。在一个优选的实施方式中，所述的羟基化润湿剂是一种或多种聚丙稀、聚乙烯、甘油、乙二醇或丙二醇。
在另一实施方式中，螯合剂是EDTA，乳化剂是非离子表面活性剂。
在本发明的一个实施方式中，所述冠醚是C8-C30冠醚，优选C10-C20冠醚，更优选C13-C19冠醚。
在另一实施方式中，所述非芳族溶剂是具有1-6个碳和1-5个乙氧基化基团的直链和非直链醇；一元-、二元-和三元-羧酸的一-、二-和三-酯；或一-、二-或三烷基酯。具体实例包括甲酯、乙酯、乙酸乙酯、月桂酸甲酯、柠檬酸二甲酯、丙酸乙酯、乙酸月桂基酯、谷氨酸甲酯、二乙氧基-2-乙基丙醇、二乙氧基戊醇、三乙氧基戊醇，和二乙氧基化异丁醇。在一个优选实施方式中，所述非芳族溶剂是乙氧基化非直链醇如二乙氧基化异丁醇、C8H19O2、或有机酯如月桂酸甲酯。
本发明组合物也可以任选地含有水溶性有机溶剂和非硅基消泡剂。水溶性有机溶剂可以是异丙醇，消泡剂可以是乙氧基化直链醇。本发明进一步提供一种清洁物件如燃气轮机的方法。该方法包括提供一种本发明的清洁组合物并且使该清洁溶液与待清洗物件接触。清洁组合物和物件接触时间的长短取决于预期的清洁程度。换言之，物件越污秽，接触时间越长。
附图简述
从下文的详细描述以及所附的附图将可以更加全面地了解本发明，这些附图仅仅用于说明而不限定本发明，其中：
图1是SolarTurbines制造的Mars燃气轮机；
图2是SolarTurbines制造的Taurus 70燃气轮机；及
图3A是用本发明清洁剂清洗之前的涡轮的图片，图3B是用本发明清洁剂清洗后的同一涡轮的图片。
图4A是用本发明清洁剂清洗之前的涡轮的图片，图4B是用本发明清洁剂清洗后的同一涡轮的图片
发明详述
本发明涉及燃气轮机清洁剂。具体地说，本发明的清洁剂是一种组合物。本发明组合物是100％可生物降解的、基于水的，并且能够除去小于35微米的微粒。本发明的组合物含有羟基化润湿剂、螯合剂、乳化剂，和任选含有的冠醚。本发明组合物也可以含有添加剂。
本发明也涉及一种清洁物件的方法，包括提供一种本发明的清洁溶液并使该清洁溶液与待清洗的物件接触足够长的时间以清洁该物件。
现在通过分别描述各组分来进一步说明本发明。
A. 清洁溶液
1. 羟基化润湿剂
本发明的羟基化润湿剂起渗透剂的作用使附着在涡轮机叶片表面上的微粒有机相变松。按照本发明，所述羟基化润湿剂是羟基化烃或羟基化烃的混合物。单个的羟基化烃优选含有2-6个碳原子和2-4个羟基。在单个羟基化烃中羟基与碳原子的比例优选在1.0-0.75之间。
羟基化烃的具体但非限定性实例包括聚丙稀、聚乙烯、甘油、乙二醇和丙二醇。
本发明的羟基化润湿剂的含量是基于组合物总重量计约10-约60％(重量)，优选约30-约50％(重量)，更优选约38-约42％(重量)。所述羟基化润湿剂最优选的含量是基于组合物的总重量计约40％(重量)。羟基化润湿剂的重量百分量(％)是基于羟基化润湿剂的100％储备溶液。
2. 螯合剂
本发明的螯合剂起溶解无机氧化物的作用。按照本发明，螯合剂是指螯合性化合物，例如乙二胺四乙酸(EDTA)或EDTA衍生物，包括EDTA的一-、二-、三-或四-钠盐，一-、二-、三-或四-铵盐等。其他螯合剂包括次氮基三乙酸(NTA)或NTA衍生物；或二亚乙基三胺五乙酸(DTPA)或DTPA衍生物。
本发明螯合剂的含量是基于组合物总重量计约20-约40％(重量)，优选约25-约35％(重量)，更优选约29-约31％(重量)。螯合剂的首选含量是基于组合物总重量计约30％(重量)。
当在本发明组合物中加入非芳族溶剂时，螯合剂的含量可以改变。譬如，螯合剂的用量变为基于组合物总重量计约1％-约30％，优选约15％-约25％，更优选约19％-约21％(重量)。
螯合剂的重量百分量(％)是基于该螯合剂的60％储备溶液。
3. 乳化剂
本发明的乳化剂起悬浮较大有机分子如油脂的作用。按照本发明，乳化剂可以是任何表面活性剂，但优选阴离子表面活性剂。首选的表面活性剂是非离子表面活性剂，而最不优选的表面活性剂是阳离子表面活性剂。任何HLP在约5至约10之间的直链醇是适合的；然而，特别适合的是乙氧基化直链醇。
表面活性剂的具体但非限定性实例是TWEEN20和BASF的Poly-TergentSL-62。
本发明的表面活性剂的含量是基于组合物总重量计约1-约45％(重量)，优选约15-约35％(重量)，更优选约20-约30％(重量)。所述的表面活性剂含量首选为基于组合物总重量计约25％(重量)。表面活性剂的重量百分量(％)是基于表面活性剂的100％储备溶液。
4. 冠醚
本发明的冠醚有力地结合粒度小于35微米的细颗粒。这是通过从多个角度结合带有强负电荷的细颗粒来实现的。然而，如果被清洗的物件没有许多这种粒度的微粒时，所述清洁溶液中可以任选地没有冠醚。按照本发明，所述冠醚含有约8-约30个碳原子，即C8-C30冠醚；优选约10-约20个碳原子，即C10-C20冠醚；更优选约13-约19个碳原子，即C13-C19冠醚。所述冠醚首选C16冠醚。
当存在时，本发明的冠醚的含量是基于组合物总重量计约0.01-约2％(重量)，优选约005-约1.25％(重量)，更优选约0.5-约1％(重量)。所述冠醚的含量首选是基于组合物总重量计约0.75％(重量)。冠醚的重量百分量(％)是基于冠醚的100％储备溶液。
5. 非芳族溶剂
本发明任选含有的非芳族溶剂的作用是使烤干在涡轮机叶片上的烃质物变软。所述非芳族溶剂可以具有疏水和非反应性特征。按照本发明，所述非芳族溶剂是具有1-6个碳原子和1-5个乙氧基化基团的直链或非直链醇；一元-、二元-或三元-羧酸的一-、二-或三-酯；或一-、二-或三烷基酯。具体实例包括，但不限于，甲酯、乙酯、乙酸乙酯、月桂酸甲酯、柠檬酸二甲酯、丙酸乙酯、乙酸月桂基酯、谷氨酸甲酯、二乙氧基-2-乙基丙醇、二乙氧基戊醇、三乙氧基戊醇和二乙氧基化异丁醇。在一个优选实施方式中，所述非芳族溶剂是乙氧基化非直链醇如二乙氧基化异丁醇、C8H19O2、或有机酯如月桂酸甲酯：Henkelt的CAS 111-82-0(Emery 2270 Methyl Laurate)。
当存在时，本发明的非芳族溶剂的含量是基于组合物总重量计约1-约20％(重量)，优选约5-约15％(重量)，更优选约9-约11％(重量)。非芳族溶剂的含量首选是基于组合物总重量计约10％(重量)。
6. 添加剂
对于添加剂的加入没有具体限制，然而，在某些情况中，可能希望在本发明的清洁组合物中加入某些添加剂。这些添加剂包括，但不限于，水溶性有机溶剂如异丙醇，和非硅基消泡剂，例如乙氧基化直链醇。
可以加入到本发明清洁组合物中的添加剂的量可以根据该清洁组合物的预定用途来变化。然而，添加剂的总量是该清洁组合物总重量的约5％(重量)。具体地说，水溶性有机溶剂的加入量优选是该组合物总重量的约3％(重量)，消泡剂的加入量优选是该组合物总重量的约2％(重量)。这些重量百分数(％)均基于100％储备溶液。
B. 清洁方法
如上文提到的，清洗燃气轮机发动机的方法有多种。这些方法中的两种是曲柄清洁法和在线清洁法。
1. 曲柄清洁法
曲柄清洁从涡轮发动机的准备开始。将涡轮机上的各个排放端口打开以便所述清洁溶液排出。移开两个空气入口门以注入清洁溶液。涡轮压缩机的可变导流叶片通过手动或电控移动至全开的位置。
当涡轮机完全准备好，随后用起动电动机以约20-24％的额定速率转动曲柄。技术员利用潜水泵把清洁溶液注入到混合溶液的5加仑桶内，或者用溶液的加压容器将所述清洁剂经过带有喷嘴的分配歧管压进涡轮压缩机。涡轮压缩机抽吸清洁溶液通过整个压缩机。一些溶液被抽吸通过整个发动机，而大部分通过燃烧室区的排放口被排放出。根据压缩机区域的脏污程度，可以采用两个循环的清洁洗涤。技术员在清洁溶液刚好没有之前关上起动电动机，在发动机转动到停止的期间注入溶液。让发动机停止10-15分钟以使清洁溶液渗透，然后进行下次曲柄清洗循环。
在静止10-15分钟后，再次由起动电动机转动发动机并清洗。将去离子水喷射到压缩机的入口内并把清洁溶液漂洗出涡轮发动机排放端口。当技术员相信清洁溶液被彻底漂洗出涡轮发动机时，停止供应去离子水，令涡轮机继续转动以吹干内部。随后停止涡轮机起动器，令发动机停止旋转。随后令轮机发动机系统恢复到其在准备起动时的正常条件。
2. 在线清洁
在线涡轮压缩机清洁法不同于曲柄清洁法。具体地说，当在线压缩机清洁时涡轮机运转，而在曲柄清洁过程中涡轮机只是转动曲柄。在在线清洁过程中，清洁溶液经过非常小的孔口注入，在涡轮压缩机的开口处产生细雾。液滴的尺寸小到不足以对叶片造成任何损坏。涡轮压缩机无法压缩液体，只能压缩空气。理论上说，有足够的液滴来完全包围叶片并且携带走轮机的污染物。随后污染物和清洁溶液穿过在至多3200°F操作的燃烧室部分。注入清洁液的时间取决于孔口大小、清洁溶液的性质和污染的程度。
提供下列实施例以对本发明有更深入的理解，但本发明不限于这些实施例。
实施例
实施例1
本实施例涉及本发明的一个具体清洁溶液制剂。该清洁溶液适合清洁低温涡轮机。组分和其含量如下所述：
组分                                                 含量(重量百分数)
丙二醇，CAS 57-55-6，
ARCO Chemical Co提供...........................        40％
SequestreneEDTA四铵盐，
BASF Corporation提供...........................        30％
Poly-TergentSL-62表面活性剂，CAS 68987-81-5
烷氧基化直链醇，
BASF Corporation提供...........................        15％
Tween20(polysorbate 20)，聚氧亚乙基(20)脱水
山梨糖醇单月桂酸酯，CAS 9005-64-5，ICI
Americas，Inc提供..............................        10％
异丙醇，CAS 67-63-0，
由Exxon，Shell，Union Carbide或BP Chemicals提
供.............................................        3％
消泡乳液7305，非硅基，
由Ashland Chemical Co提供......................        2％
总量                                                   100％
通过把各个组分在容器内混合来制备上述制剂。容器的大小取决于所需清洁溶液的量。
实施例2
本实施例涉及本发明的一种具体清洁溶液。该清洁溶液适合清洁喷气发动机或其他高温涡轮机。组分和其含量如下所述：
组分                                               含量(重量百分数)
丙二醇，CAS 57-55-6，
由ARCO Chemical Co提供...........................   39.25％
SequestreneEDTA四铵盐，
由BASF Corporation提供...........................   30％
Poly-TergentSL-62表面活性剂，CAS 68987-81-5
烷氧基化直链醇，
由BASF Corporation提供...........................   15％
Tween20(polysorbate 20)，聚氧亚乙基(20)脱
水山梨糖醇单月桂酸酯，CAS 9005-64-5，
由ICI Americas，Inc提供..........................   10％
异丙醇，CAS 67-63-0，
由Exxon，Shell，Union Carbide或BP Chemicals提
供...............................................   3％
消泡乳液7305，非硅基，
由Ashland Chemical Co提供........................   2％
15-冠-5，CAS 33100-27-5，冠醚
由Alfa Aesar提供.................................   0.75％
总量                                                100％
通过把各个组分在容器内混合来制备上述制剂。容器的大小取决于所需清洁溶液的量。
实施例3
本实施例涉及本发明的一种具体清洁溶液。该清洁溶液适合清洁低温涡轮机。组分及其含量如下所述：
组分                                                含量(重量百分数)
丙二醇，CAS 57-55-6，
由ARCO Chemical Co提供...........................    40％
SequestreneEDTA四铵盐，
由BASF Corporation提供...........................    20％
Poly-TergentSL-62表面活性剂，CAS 68987-81-5
烷氧基化直链醇，
由BASF Corporation提供...........................    15％
Tween20(polysorbate 20)，聚氧亚乙基(20)脱
水山梨糖醇单月桂酸酯，CAS 9005-64-5，
由ICI Americas，Inc提供..........................    10％
异丙醇，CAS 67-63-0，
由Exxon，Shell，Union Carbide或BP Chemicals提
供...............................................    3％
月桂酸甲酯，CAS 111-82-0，
由Henkel提供，Emery 2270月桂酸甲酯...............    10％
消泡乳液7305，非硅基，
由Ashland Chemical Co提供........................    2％
总量                                                 100％
通过把各个组分在容器内混合来制备上述制剂。容器的大小取决于所需清洁溶液的量。
实施例4
本实施例涉及本发明的一种具体清洁溶液。该清洁溶液适合清洁喷气发动机或其他高温涡轮机。组分及其含量如下所述：
组分                                               含量(重量百分数)
丙二醇，CAS 57-55-6，
由ARCO Chemical Co提供...........................   39.25％
SequestreneEDTA四铵盐，
由BASF Corporation提供...........................   20％
Poly-TergentSL-62表面活性剂，CAS 68987-81-5
烷氧基化直链醇，
由BASF Corporation提供...........................   15％
Tween20(polysorbate 20)，聚氧亚乙基(20)脱
水山梨糖醇单月桂酸酯，CAS 9005-64-5，
由ICI Americas Inc提供...........................   10％
异丙醇，CAS 67-63-0，
由Exxon，Shell，Union Carbide或BP Chemicals提
供...............................................   3％
月桂酸甲酯，CAS 111-82-0，
由Henkel提供，Emery 2270月桂酸甲酯...............   10％
消泡乳液7305，非硅基，
由Ashland Chemical Co提供........................   2％
15-冠-5，CAS 33100-27-5，冠醚
由Alfa Aesar提供.................................   0.75％
总量                                                100％
通过把各个组分在容器内混合来制备上述制剂。容器的大小取决于所需清洁溶液的量。
本申请所有引用的专利、文献、待决申请和临时申请引入本说明书作为参考。
虽然按上述方式描述了本发明，但显而易见的是本发明可以以多种方式改变。此类改变方案不脱离本发明的实质和范围，并且所有对于技术人员来说显而易见的改进方案都属于本发明的范围。

Claims (25)

1.一种清洁组合物，其含有：
10％-60％(重量)的润湿剂，该湿润剂包含一种或多种羟基化烃；
1％-40％(重量)的螯合剂，该螯合剂包含选自EDTA、EDTA衍生物、NTA、NTA衍生物、DTPA以及DTPA衍生物中的一种或多种化合物；
1％-45％(重量)的乳化剂，该乳化剂包含一种或多种直链醇以及烷氧化直链醇；和
0.01％-2％(重量)的冠醚，该冠醚含有8到30个碳原子，
其中所有的％(重量)值均基于该组合物的总重量。
2.按照权利要求1的清洁组合物，其进一步含有1％-20％(重量)的非芳族溶剂，该非芳族溶剂包含直链醇和非直链醇的至少一种。
3.按照权利要求1的清洁组合物，其含有：
30％-50％(重量)的所述润温剂；
25％-35％(重量)的所述螯合剂；
15％-35％(重量)的所述乳化剂；和
0.05％-1.25％(重量)的所述冠醚，
其中所有％(重量)值均基于该组合物的总重量。
4.按照权利要求3的清洁组合物，其含有：
38％-42％(重量)的所述润湿剂；
29％-31％(重量)的所述螯合剂；
约20％-约30％(重量)的所述乳化剂；和
约0.5％-约1％(重量)的所述冠醚，
其中所有％(重量)值均基于该组合物的总重量。
5.按照权利要求1的清洁组合物，其中所述润湿剂含有2-6个碳原子和2-4个羟基。
6.按照权利要求5的清洁组合物，其中所述碳原子与所述羟基的比例在1.0-0.75之间。
7.按照权利要求1的清洁组合物，其中所述润湿剂是选自聚丙烯、聚乙烯、甘油、乙二醇和丙二醇中的至少一种。
8.按照权利要求1的清洁组合物，其中所述螯合剂包含EDTA和EDTA衍生物的至少一种。
9.按照权利要求1的清洁组合物，其中所述乳化剂是非离子表面活性剂。
10.按照权利要求1的清洁组合物，其中所述乳化剂是HLP为5-10的直链醇。
11.按照权利要求10的清洁组合物，其中所述冠醚是C10-C20冠醚。
12.按照权利要求11的清洁组合物，其中所述冠醚是C13-C19冠醚。
13.按照权利要求1的清洁组合物，其进一步含有不高于3％(重量)的水溶性有机溶剂和不高于2％(重量)的非硅基消泡剂的至少一种。
14.按照权利要求13的清洁组合物，其中所述水溶性有机溶剂是异丙醇，所述消泡剂是乙氧基化直链醇。
15.按照权利要求1的清洁组合物，其进一步含有非芳族溶剂。
16.按照权利要求15的清洁组合物，其含有：
10％-60％(重量)的所述润湿剂；
1％-30％(重量)的所述螯合剂；
1％-45％(重量)的所述乳化剂；
0.01％-2％(重量)的所述冠醚；和
1％-20％(重量)的所述非芳族溶剂，
其中所有％(重量)值均基于该组合物的总重量。
17.按照权利要求16的清洁组合物，其含有：
30％-50％(重量)的所述润湿剂；
15％-25％(重量)的所述螯合剂；
15％-35％(重量)的所述乳化剂；
0.05％-1.25％(重量)的所述冠醚；和
5％-15％(重量)的所述非芳族溶剂，
其中所有％(重量)值均基于该组合物的总重量。
18.按照权利要求17的清洁组合物，其含有：
约38％-约42％(重量)的所述润湿剂；
约19％-约21％(重量)的所述螯合剂；
约20％-约30％(重量)的所述乳化剂；
约0.5％-约1％(重量)的所述冠醚；和
约9％-约11％(重量)的所述非芳族溶剂，
其中所有％(重量)值均基于该组合物的总重量。
19.按照权利要求12的清洁组合物，其中所述非芳族溶剂选自(1)具有1-6个碳原子和1-5个乙氧基化基团的直链或非直链醇，(2)一元-、二元-或三元-羧酸的单-、二-或三酯，和(3)一-、二-或三烷基酯。
20.按照权利要求19的清洁组合物，其中所述非芳族溶剂选自甲酯、乙酯、乙酸乙酯、月桂酸甲酯、柠檬酸二甲酯、丙酸乙酯、乙酸月桂基酯、谷氨酸甲酯、二乙氧基-2-乙基丙醇、二乙氧基戊醇、三乙氧基戊醇和二乙氧基化异丁醇。
21.按照权利要求19的清洁组合物，其中所述非芳族溶剂是乙氧基化非直链醇或有机酯。
22.按照权利要求21的清洁组合物，其中所述非芳族溶剂是二乙氧基化异丁醇，所述有机酯是月桂酸甲酯。
23.一种清洁物件表面的方法，其包括：
提供根据权利要求1的清洁组合物；和
将该清洁组合物与所述物件接触足够长的时间以清洁该物件。
24.按照权利要求23清洁表面的方法，其中所述物件是燃气轮机发动机。
25.根据权利要求24清洁表面的方法，其中通过曲柄清洁法或在线清洁法将所述清洁组合物涂布在所述表面上。
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DE60030004D1 (de) 2006-09-21
ATE335870T1 (de) 2006-09-15
AU2574901A (en) 2001-06-12
EP1252370A1 (en) 2002-10-30
EP1252370B1 (en) 2006-08-09
CN1413270A (zh) 2003-04-23
RU2002115818A (ru) 2004-02-27
WO2001040548A9 (en) 2002-08-15
US6310022B1 (en) 2001-10-30
DE60030004T2 (de) 2007-03-08
JP2003515666A (ja) 2003-05-07

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