CN2470554Y - Air filter - Google Patents

Abstract

The utility model relates to an air cleaner a diesel engine in engineering machine. The utility model is used in environments of coal mines and construction fields in which the working condition is poor and dust flies heavily. A pot-type swirling flow rough filter device (1) comprises an air inlet (4), swirler vanes (5), a dust collecting bowl (6) and a shell (7). Bigger particles of dust and impurities can be filtered when air enters into the pot-type swirling flow rough filter device (1), the first level, the filtered air enters into a multi-pipe swirling flow type rough filter device (2), the second level, and then into the third level, a fine filter-like cleaning device (3). The three filters are arranged reasonably with high filtering efficiency and longer service life.

Description

Air filter

Must in advance bigger dust filtration be fallen, just can make the filter paper fine filtering partly have a target that adapts to filter then.Imagination is divided into carse, medium and small three grades with dust, foreign material, from air inlet, disposes the filtrating equipment of three grades of dissimilar and structures successively.At present existing papery or nonwovens carry out the fine filtering of extreme trace as the third level fine filtering device of filter material, and preposition partial multi-tube cyclone type rough filtering device filters as the middle level, the first order that for this reason enters the mouth configuration benzvalene form cyclone device.Though benzvalene form eddy flow rough filtering device filter precision is lower, it is big that it filters energy, suitable dust and the impurity of removing larger particles, and energy loss is relatively also less, therefore is configured in the first order and suits.

Because three-stage filtration has been arranged, and three grades filter type is all different, the object of work is also different, air is accepted carse, medium and small filtration after entering from suction port successively, can produce filtering effect preferably.Three-stage filtration structure difference can be given full play to the characteristics and the advantage of self filtering, and reasonable disposition is scientifically used the energy, cuts down the consumption of energy.Though increased the one-level filtrating equipment, owing to selecting, disposing more rationally, through test, contrast, energy consumption increases also little, and the filter efficiency of filter cleaner obviously improves, and also obtains working life prolonging.

Describe structure of the present utility model and working condition in detail below in conjunction with accompanying drawing.

Accompanying drawing is total allocation plan of the utility model institute generator.

Benzvalene form eddy flow rough filtering device (1) is made up of suction port (4), swirl vane (5), control of dust bowl (6) and housing (7).The air of filtered at first enters the suction port (4) of benzvalene form eddy flow rough filtering device (1), through swirl vane (5) thicker contaminant filter is fallen, and impurity and dust are collected in the hand control of dust bowl (6).The air that has intermediate dust enters multi-tube cyclone type rough filtering device (2) then, filter out all thick impurity, dust, when entering papery or nonwovens as the third level fine filtering formula filter (3) of filter material when filtering, only remained the dust of trickle particle diameter in the air, the filter efficiency height, and working load is little, makes filter cleaner keep long working life.

Claims (1)

1. an air-strainer is applicable to and filters with the air of diesel engine entering engineering machinery, form by filtering type filter (3) and multi-tube cyclone type rough filtering device (2), it is characterized in that the preposition again one-level benzvalene form of wind inlet section eddy flow rough filtering device (1) at multi-tube cyclone type rough filtering device (2).