Convective heat exchange fractionation device
A fractionation device and convective heat exchange technology, which is applied in the direction of fractionation and lubricating compositions, can solve the problems of large investment and floor space, low efficiency, and increased oil and gas uplift height, and achieve stable fractionation performance and simple device structure Effect
Inactive Publication Date: 2010-09-15
唐山山岛石油化学有限公司
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Problems solved by technology
[0007] ①Segmented heating and segmented purification method: the efficiency is too low, and the oil and gas uplift height of the tail oil in the later period is reduced due to the decrease of the evaporation liquid level, which eventually leads to the cracking of some heavy components into light components at high temperature. cannot be effectively separated
[0009] ③Continuous multi-stage segmentation purification method: equipment investment and floor area are too large
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[0020] Describe the present invention in detail below in conjunction with accompanying drawing and embodiment:
[0021] A convective heat exchange fractionation device, see attached figure 1 , attached figure 2 ; In the figure: evaporation tank 1, oil and gas discharge pipeline 2, heat exchange medium output pipeline 3, second convection heat exchanger 4, heat exchange medium connection pipeline 5, heavy component gas-liquid separator 6, first convection heat exchanger 7 , metering conveying device 8, heat exchange medium input pipeline 9, raw material tank 10, medium component gas-liquid separator 11, gas-liquid condenser 12, light component gas-liquid separator 13, oily waste gas discharge pipeline 14, light component Delivery pipeline 15, light component collection tank 16, medium component collection tank 17, first liquid phase condenser 18, heavy component collection tank 19, second liquid phase condenser 20, heat exchange medium channel 21, heat exchanger jacket 22. P...
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The invention relates to the oil distillation technology, in particular to a convection heat exchange fractionation device, which comprises an evaporating pot, an oil-gas drainage pipeline, a gas-liquid separator and a component gathering tank. The gas-liquid separator is set on the oil-gas drainage pipeline; a convection heat exchanger is sleeved on the oil-gas drainage pipeline between the gas-liquid separator and the evaporating pot; a heat exchange medium inlet of the convection heat exchanger is communicated with a material tank through a metering conveyor, and a heat exchange medium outlet of the convection heat exchanger is communicated with the inside of the evaporating tank through a heat exchange medium output pipeline; and the lower port of the gas-liquid separator is communicated with the component gathering tank through a liquid-phase condenser. In the invention, as the input port of the convection heat exchanger is communicated with the material tank through the metering conveyor, and the output port of the convection heat exchanger is communicated with the inside of the evaporating pot through the heat exchange medium output pipeline, the flowing directions of the waste engine oil as heat exchange medium and the high-temperature oil-gas are in convection trend; moreover, the waste engine oil is pre-heated by fractionation temperature difference The invention has the advantages of high efficiency, energy saving, simple device structure and stable fractionation performance.
Description
Technical field: [0001] The invention relates to oil distillation technology, in particular to a convective heat exchange fractionation device. Background technique: [0002] Oil materials include: waste engine oil, which is composed of multiple components, the lighter the component, the lower the distillation range temperature. [0003] Taking the above-mentioned waste engine oil as an example, the distillation purification process is carried out below. [0004] Traditional waste engine oil evaporation purification generally adopts the following three methods: [0005] ①Segmented heating and segmented purification method: Using the principle of obtaining different fractions at different distillation range temperatures, they are subjected to heating distillation and purification treatment. The heating process is from low to high, through different distillation ranges Different fractions were obtained for fractional distillation at different temperatures. ②Vertical fractio...
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IPC IPC(8): B01D3/14B01D3/32C10M175/00
Inventor 吴国存
Owner 唐山山岛石油化学有限公司