Proper use of construction machinery and diesel

Proper use of construction machinery and diesel

Postautor: harden » 30 sie 2016, o 10:54

Diesel is refined from petroleum, according to the different processes of distillation range, light diesel oil and can be divided into two major categories of heavy diesel oil. Due to the high speed of construction machinery diesel engines, so use the light diesel oil. The pale yellow color of light diesel oil to dark yellow, some greenish, not readily evaporate, feel somewhat sticky. requirements a light diesel oil. 1 pyrophoric moderate to diesel combustion refers to diesel and ...
Diesel is refined from petroleum, according to the different processes of distillation range, light diesel oil and can be divided into two major categories of heavy diesel oil. Due to the high speed of construction machinery diesel engines, so use the light diesel oil. The pale yellow color of light diesel oil to dark yellow, some greenish, not readily evaporate, feel somewhat sticky.
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A light diesel oil is required.
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1 pyrophoric moderate to diesel combustion refers to diesel and air to form a combustible mixture self-ignition combustion capacity, usually "cetane number" indicates.
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As for the cetane number, it is not a unit, but a comparison value. It refers to the combustion performance of diesel equivalent cetane and a- methyl naphthalene mixture, the volume occupied by the percentage of cetane X. combustion properties and cetane start nature of much better than a- methylnaphthalene Assuming hexadecane combustion performance is 100 units, a- methylnaphthalene is 0 units. these two combustion properties of different substances , according to different volume ratio with a mixed solution can be obtained from a variety of standard diesel fuel cetane number 0-100 for example, a predetermined number 0 light diesel cetane number of not less than 50, it means that its combustion performance equivalent to 50% and 50% a- hexadecane mixture of methyl naphthalene. the larger the cetane number, the better the combustion performance of construction machinery diesel engine with light diesel oil, cetane number is generally 45-60 good. cetane number is too low, it will cause diesel crude winter starting difficulties. cetane number is too high, too late to diesel mixes well with air spray people had been on fire the combustion chamber, resulting in incomplete combustion, resulting in diesel exhaust black smoke, power loss and increased fuel consumption.
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2 good cold flow properties of diesel low temperature fluidity, with the pour point to represent. Pour point is the use of diesel diesel cooled to a temperature loss of flowability, and is an important indicator of diesel.
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3 to have a certain viscosity which aims to ensure that in a good spray, burning completely under the premise of plunger injection pump and other pieces to get a good lubrication.
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