The characteristics of air cleaner

2014-10-23

 　　Air filter and air filter cartridge, air filter, style, etc. Is mainly used in the engineering of locomotive, automobile, agricultural locomotive, laboratories, aseptic operation room and all kinds of precision air filter in the operation room.

　　According to the filtration principle, air filter can be divided into the filter type, centrifugal, oil bath type, compound several. At present, the commonly used air in the engine

　　Filter mainly include inertial oil bath type air filter, paper dry type air filter, pu filter air filter etc. Inertial oil bath type air filter successively through the inertia type filtration, oil bath type filtration, filtration type filtration tertiary filtration, mainly through two kinds of air filter cartridge filter type after filtration. Inertial oil bath type air filter has the intake resistance small, can adapt to dusty sandy working environment, the advantages of long service life, used in a variety of models of cars, tractors used on the engine. But this kind of air filter filtration efficiency is low, weight big, high cost and inconvenient, in the car engine has gradually become obsolete. Paper dry type air filter cartridge adopts resin processing microporous filter paper, filter paper, porous, loose, folding has certain mechanical strength and water resistance, high filtration efficiency, simple structure, light weight, low cost, convenient maintenance, is currently the most widely used automotive air filter. Pu filter of the air cleaner filter adopts polyurethane soft, porous, spongy, adsorption ability, this kind of air filter has the advantage that the paper dry type air filter, but the low mechanical strength, which has been widely used in car engines. Two kinds of air filter after the disadvantage is that the service life is shorter, work under harsh environmental conditions is not reliable.

　　All kinds of air filter each have advantages and disadvantages, but inevitably exist in the contradiction between the gas and the filtration efficiency. With the in-depth study of air filter, also more and more high to the requirement of air filter. In recent years, there have been some new type of air filter, such as fiber filter air filter, compound filter material thermostatic sound air filter, air filter, air filter, etc., in order to meet the need of the engine

　　Modern automobile engine air filter paper core is becoming more common, but still have some drivers for air filter paper core prejudice, think air filter paper core filtration effect is not good. Actually, air filter and oil bath type air filter paper core in comparison with more advantages: one is the filter efficiency is as high as 99.5%, with 98% oil bath type air filter), dust of transmittance is only 0.1% - 0.3%; Second, compact structure, can be installed on any location, not limited by vehicle parts layout; Three is to maintain without fuel consumption, but also save a lot of materials such as cotton, felt and metal materials; Small four is quality, low cost. Therefore, the driver can be at ease use.

　　Air cleaner with good paper core is the key to maintain its sealing performance, don't let the unfiltered air bypass into the engine cylinder

　　1. When installation, air filter and engine intake pipe between whether using flange, rubber hose connection or direct connection, must be rigorous and reliable, to prevent air leakage, filter two end must install rubber gasket; Fixed air cleaner cover wing nut cannot be screwed too tight, so as not to crush the filter paper.

　　2. In the maintenance, the paper filter must not in oil cleaning, otherwise the paper filter effect, also easy to cause accident. Maintenance, only using vibration method, soft brush to brush the division (brush) to follow its buckling or compressed air blow method to remove adhesion on the surface of the paper filter, dust and dirt. Part of strainer, should keep clear of dust, the dust in the leaves and the place such as cyclone tube. Even if every time can elaborate maintenance, paper filter does not completely restore the original performance, the intake resistance increases, therefore, generally when the paper filter needs 4 maintenance, a new filter should be replaced. If the paper filter appear rupture, degumming, perforation or filter paper and the end cover should be replaced immediately.

　　3. When use, carefully about core air cleaner drenched with rain, because once the paper core is a large amount of moisture adsorption, will greatly increase the intake resistance, shorten the mission. In addition, the air filter paper core cannot contact with oil and fire.

　　4. Some vehicle engine equipped with cyclone air filter, filter paper the end of the plastic cover is a dome, cover on the air rotating blades, 80% of the dust under the action of centrifugal force, separation and collection in the arms of dust reaches the paper filter dust is inhalation of dust amount of 20%, the total filtration efficiency is about 99.7%. Therefore, maintenance of cyclone air filter, be careful not to will filter the food dome on the packing.

　　1, in the machine tool industry, 85% machine drive system currently adopted the hydraulic transmission and control. Such as grinding machine, milling machine, planer, broaching machine, pressing machine, shearing machine, and combination machine tools and so on.

　　2, in the metallurgical industry, the electric furnace control system, control system of rolling mill, open hearth furnace charging, control of converter, blast furnace control, strip running deviation and constant tension device of hydraulic technology has been adopted.

　　3, in the engineering machinery, widely used for hydraulic transmission, such as excavators, tire loader, truck crane, crawler bulldozers, cranes, motor scraper, roller grader and vibration, etc.

　　4, in the agricultural machinery, the use of hydraulic technology is also very wide, such as combine harvesters, tractor and plow.

　　5, in the auto industry, hydraulic off-road vehicles, hydraulic dump car, fire engine and hydraulic overhead working truck adopts hydraulic technology.

　　6, in the textile industry, the hydraulic technology of plastic injection molding machine, rubber vulcanization machine, paper machine, printing machine and textile machine, etc.