Liquid petroleum density meter testing instrument

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The main importance of measuring the density of petroleum products in production, use, and storage and transportation is as follows: ① It is used for the metering of petroleum products. During measurement, the volume v and density ρ are first determined, and then the mass of the petroleum product is calculated using the product of volume and density. m = V20 (P20 – 0.0011) = KVt (P20 – 0.0011). Here, V20 represents the standard volume, that is, the volume at 20°C, in L or m3; ρ20 is the standard density, in g/cm³; K is the volume coefficient of petroleum, which is the ratio of the volume of petroleum at 20°C to its volume at temperature t°C; 0.0011 is the correction factor for air buoyancy, in g/cm³; Vt is the volume at temperature t°C, in m3. Shandong Shengtai Instrument Co., Ltd. ② Different petroleum products have different densities, and by measuring the density, it is possible to roughly determine the type of petroleum product. The standard density ranges for common petroleum products are as follows: Petroleum product density range/(g/Cm3) – Automotive gasoline: 0.700–0.760; Aviation gasoline: 0.730–0.745; Jet fuel: 0.775–0.840; Light diesel: 0.800–0.830; Type 10 aviation hydraulic oil: 0.825–0.830; Type 20 aviation lubricant: 0.884–0.889; Type 8 jet engine lubricant: 0.866–0.870; Turbine oil: 0.870–0.890; Special spindle oil: 0.888–0.896; Diesel engine lubricant: 0.880–0.900; Gas engine lubricant: 0.880–0.900; Type 6 fuel oil: 0.900–0.910; Special fuel oil: 0.950–0.9. ③ The density of petroleum products can be used to roughly assess their quality and chemical composition. If a significant increase or decrease in the density of petroleum products is detected during storage and transportation, it can be determined whether heavy oil or light oil may have mixed in. Or light fraction evaporation loss. In terms of chemical composition, aromatic hydrocarbons have the highest density, naphthenic hydrocarbons have a density in between, while alkanes have the lowest density. Petroleum products with high levels of resin and asphaltenes also have a high density. ④The influence of petroleum product density on the performance of fuel oils. Both engine power and fuel consumption rate are related to fuel density; with the same tank volume, the higher the fuel density, the more fuel can be stored, and thus the greater the range. However, when the density is too high, it affects the atomization and combustion of the fuel; therefore, fuel product standards specify requirements for density.