Mobiltherm 600系列
傳熱油
產品描述
傳熱油Mobiltherm高性能產品用于閉式間接加熱裝置。建議在各種工業(yè)過程中使用的冷油密封，間接加熱和冷卻系統(tǒng)。
傳熱油Mobiltherm制定由高度精煉的基礎股票是抵抗熱裂化和化學氧化。他們是非常熱穩(wěn)定，是一個非常長的使用壽命沒有存款的形成或粘度增加的能力。
傳熱油Mobiltherm有良好的傳熱效率和粘度等，可以抽容易在啟動和運行溫度。他們表現(xiàn)出比熱和熱導率，提供更快速的散熱。這些油的閃光點不會減少顯著的服務，因為他們的抵抗熱裂紋的工作溫度，他們的建議。
特點和優(yōu)點
Mobiltherm油是專業(yè)的液體，獲得了性能和可靠性的聲譽，美孚品牌的重要成員，即使在嚴重的應用。現(xiàn)代煉油技術是提供優(yōu)良的產品功能的一個關鍵因素。
Mobiltherm 600系列具有以下優(yōu)點：
功能優(yōu)勢和潛在的好處
高耐熱裂解和分解，從污泥和焦炭的存款和最小的干擾與傳熱能力和最小化的維護需求
優(yōu)良的熱性能高的傳熱率和提高了工作效率和較低的運行成本
良好的熱穩(wěn)定性和氧化穩(wěn)定性，長期無故障使用壽命和減少停機時間
良好的低溫流動性易冷系統(tǒng)啟動
應用
應用考慮：Mobiltherm導熱油不應與其他混合油因為這可能會損害良好的熱穩(wěn)定性和氧化穩(wěn)定性造成其他性質的變化，和復雜的分析的目的是確定有用的機油壽命。如果油是用在他們的建議的最大溫度，可能會導致氣阻，除非系統(tǒng)是設計運行在較高溫度下加壓惰性氣體如氮氣。在更高的溫度下，流體的壽命將被縮短，因為熱降解率顯著增加，隨著溫度的上升超過建議的限制。在設計良好的系統(tǒng)中加熱元件周圍的油膜的溫度應該在15oC至30 C以上的散裝貨油的溫度o。如果高于此，油的使用壽命可能會縮短，污泥和焦炭可能會沉積，這將干擾傳熱率。
與其他礦物油，Mobiltherm導熱油應僅用于強制循環(huán)系統(tǒng)。依靠對流換熱介質的系統(tǒng)，不提供足夠的流動性，以防止局部過熱和快速惡化的油。此外，這些油不被推薦用于開放系統(tǒng)中，在那里，熱油直接暴露在空氣中。如果他們從泄漏點噴射或逃避，熱Mobiltherm油可能會自發(fā)地點燃。
Mobiltherm 600系列可用于打開和關閉安裝在散裝油溫度范圍如下表概述。
Mobiltherm 603：封閉系統(tǒng)（15oC 285oC）、開放系統(tǒng)（15oC7 C 150oC）
Mobiltherm 605：封閉系統(tǒng)（12oC 315oC）、開放系統(tǒng)（12oC 180oC）
Mobiltherm 610：開放系統(tǒng)（6°C 250°C）
Mobiltherm 611：開放系統(tǒng)（6°C 275°C）
Mobiltherm 600 Series
Heat transfer Oils
Product Description
Mobiltherm heat transfer oils are high performance products intended for use in closed indirect heating installations. They are recommended for use in cold-oil sealed, indirect heating and cooling systems in all kinds of industrial processes.
Mobiltherm heat transfer oils are formulated from highly refined base stocks that are resistant to thermal cracking and chemical oxidation. They are very thermally stable and are capable of an extremely long service life without deposit formation or viscosity increase.
Mobiltherm heat transfer oils have good heat transfer efficiency and their viscosities are such that they can be pumped readily at both start-up and operating temperatures. They demonstrate specific heat and thermal conductivities that provide more rapid heat dissipation. The flash points of these oils will not decrease significantly in service because of their resistance to thermal cracking at the operating temperatures for which they are recommended.
Features and Benefits
Mobiltherm oils are important members of the Mobil brand of specialty fluids that have gained a reputation for performance and reliability, even in severe applications. Modern refining techniques are a key factor in providing the excellent product features.
Mobiltherm 600 Series offer the following benefits:
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Features
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Advantages and Potential Benefits
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High resistance to thermal cracking and decomposition
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Free from sludge and coke deposits and minimum interference with heat transfer capability and minimized maintenance needs
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Excellent thermal properties
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High heat transfer rates and improved operating efficiency and lower operating costs
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Good thermal and oxidative stability
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Long trouble free service life and reduced downtime
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Good low temperature fluidity
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Easy starting of cold systems
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Applications
Application Considerations: Mobiltherm heat transfer oils should not be mixed with other oils since this may impair the excellent thermal and oxidation stability resulting in a change in other properties, and complicate analyses aimed at determining useful oil life. If the oils are used above their recommended maximum temperatures, vapor lock may result unless the system is designed to operate at the higher temperature by pressurizing with an inert gas such as nitrogen. At higher temperatures, fluid life will be shortened because the rate of thermal degradation which increases markedly as temperatures rise above the recommended limit. In well-designed systems the temperature of the oil film surrounding the heating element should be about 15oC to 30oC above the bulk oil temperature. If higher than this, the service life of the oil may be shortened and sludge and coke may be deposited which would interfere with the heat transfer rates.
As with other mineral oils, Mobiltherm heat transfer oils should be used only in systems with forced circulation. Systems that depend on convection for circulation of the heat transfer medium do not provide a rapid enough flow to prevent local overheating and rapid deterioration of the oil. Further, these oils are not recommended for use in open systems where hot oil is exposed directly to the air. If they spray or escape from leakage points, hot Mobiltherm oils may spontaneously ignite.
Mobiltherm 600 series can be used in open and closed installations where the bulk oil temperature ranges are as outlined in the table below.
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Mobiltherm 603: Closed Systems (-15o C to 285o C), Open Systems (-15o C7 C to 150o C)
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Mobiltherm 605: Closed Systems (-12o C to 315o C), Open Systems (-12o C to 180o C)
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Mobiltherm 610: Open systems (-6°C to 250°C)
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Mobiltherm 611: Open systems (-6°C to 275°C)
Typical Properties
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Mobiltherm 600 Series
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603
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605
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610
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611
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Viscosity, ASTM D 445
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cSt @ 40oC
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20.2
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30.4
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113
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490
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cSt @ 100oC
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4.2
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5.4
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11.5
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31.5
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Pour Point, oC, ASTM D 97
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-15
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-12
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-6
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-6
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Flash Point, oC, ASTM D 92
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194
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230
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250
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294
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Specific Gravity @15 oC kg/l, ASTM D 4052
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0.835
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0.857
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0.88
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0.906
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