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首页> 外文会议>International Scientific-Practical Conference "Quality Management and Reliability of Technical Systems" >Method of cleaning from the carbon deposits of the surfaces of the elements of internal-combustion engines without their unbuttoning
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Method of cleaning from the carbon deposits of the surfaces of the elements of internal-combustion engines without their unbuttoning

机译：从内燃机元件表面的碳沉积物清洁方法，无需它们的解禁止

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A review of existing technologies for cleaning carbon deposits from machine parts and mechanisms working in contact with hydrocarbon substances(fuel,lubricant,heating agency)at a wall temperature of 120 °C to 350 ° C shows the diversity of such deposits in chemical composition and physical properties.Carbon deposits are divided into easily removable and difficult to remove deposits.Soot(smoke black)belongs to easily removed carbon deposits;varnish and coke are difficult to remove deposits.Soot is a product of incomplete combustion of fuel and includes carbon,light hydrocarbons(up to 30% by weight)and in small quantities various compounds,including carcinogenic.Lake and resinous deposits are carbon deposits that form as a thin layer,firmly held on the surfaces of the channels.Lake is a product of liquid-phase oxidation and consists of 20...40% of carbon molecules and 60...70% of hydrogen molecules.Coke(or coke deposits)are black solid carbonaceous substances consisting mainly of a mixture of carbon molecules and high-molecular-weight hydrocarbons(80%)and hydrogen molecules(20%).The most common methods of cleaning machine parts from various kinds of pollution and sediments are physical,chemical and chemical-thermal methods.Experimental work has been performed to evaluate the effectiveness of these methods.The experiments were carried out on an open loop installation with a flow reactor.Replaceable stainless steel and high-temperature alloy tubes were used as a reactor.The regime parameters during the experiment were maintained unchanged,and the temperature state of the reactor was monitored at specified intervals.
机译：在120℃至350℃的壁温下从机器零件和与烃类物质（燃料，润滑剂，加热器）接触的机制和机构中的清洗碳沉积物的综述显示了化学成分中这种沉积物的多样性物理性质。碳储存分为易于可拆卸且难以移除沉积物。储存（烟黑）属于易于除去碳沉积物;清漆和焦炭难以去除沉积物。对燃料燃烧的产物是不完全燃烧的产物，包括碳，轻质烃（重量高达30重量％）和少量各种化合物，包括致癌和树脂沉积物是形成为薄层的碳沉积物，牢固地保持在通道的表面上。作为液体的产物是液体 - 相氧化和20％的碳分子和60％的碳分子和60％的氢分子。（或焦炭沉积物）是主要由混合物组成的黑色固体碳质物质碳分子和高分子量碳氢化合物（80％）和氢分子（20％）。从各种污染和沉积物中清洁机器部件的最常用方法是物理，化学和化学热方法。实验工作已经进行了评估这些方法的有效性。通过流动反应器的开口环路进行实验。可用的不锈钢和高温合金管作为反应器。实验期间的制度参数保持不变并且以指定的间隔监测反应器的温度状态。

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