High-accuracy filtering device and method for aviation kerosene

Abstract

The invention discloses a high-accuracy filtering device for aviation kerosene. The high-accuracy filtering device for the aviation kerosene comprises a shell, a first separation net, a second separation net, filter paper, a kerosene inlet, a kerosene outlet and a top end cover board; the shell and the top end cover board form a box body; the first separation net and the second separation net arearranged in the box body; the first separation net and the second separation net divide a space of the box body into a kerosene inlet cavity, a filtering cavity and a kerosene outlet cavity; a plurality of layers of filter paper are stacked in the filtering cavity; both ends of the filter paper are respectively fixed to both ends of the first separation net and the second separation net; and the filter paper is in parallel to each other. The method provided by the invention adopts an interlayer filtering method, the filter paper is stacked, filtrate passes in parallel to the filter paper, andfiltering of impurities is implemented by utilizing minute gaps between the filter paper; and moreover, the outer surfaces of the filter paper are rough, and thus, when the filtrate passes, a great amount of impurities can be adsorbed on filter paper fibers, so that filtering accuracy and pollutant-holding capacity are greatly improved and filtering purification processing of aviation kerosene filamentous colloid can be effectively implemented.

Description

technical field [0001] The invention relates to the technical field of filtering equipment, in particular to a high-precision filtering device and method for aviation kerosene. Background technique [0002] Aviation kerosene is one of petroleum products, mainly composed of hydrocarbon compounds of different fractions. Because of its high calorific value, good combustion performance, less carbon deposition, and good low-temperature fluidity, it is widely used as fuel for aviation turbine engines. Aviation kerosene is one of the country's important strategic materials and plays a pivotal role in national defense security and economic construction. However, the Academy of Military Sciences discovered during the test flight of the carrier-based aircraft that the finished aviation kerosene will produce many transparent filamentous colloids after being stored for a period of time, which is likely to block the aircraft fuel supply pipeline and cause serious accidents. [0003] Th...

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Problems solved by technology

At present, the more advanced filtering is gradually dense filtering, such as figure 1 As shown, the filter screens are arranged from sparse to dense, and the impurities are separated layer by layer according to the pore size of the filter screen. This method can make the filtration accuracy reach 2 μm, but it is found through experiments that it is difficult to achieve the filiform gum in aviation kerosene with this method. effective removal of

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