Porous spiral tube automobile exhaust pm2.5 catcher and catch method

Abstract

The invention discloses a porous spiral-pipe catcher for PM 2.5 of automobile exhaust and a catching method of the catcher. The catcher comprises a casing, wherein a drawer type filter box body is arranged in the casing and contains a solution; the rear end of the box body is fixed with the casing by using a buckle; a gas inlet nozzle is arranged at the front end of the box body; a detachable cover plate, a pull handle and a solution injection hole are arranged on the outer side of the rear end of the box body; a gas inlet part on the gas inlet nozzle extends out of the casing and is connected with a gas exhaust guide pipe at the front end; a plurality of spiral pipes are arranged in the box body, and a plurality of gas escaping holes are formed in the spiral pipes; a plurality of vertical gratings are arranged in the box body; and nano-material coatings can be added to relevant working surfaces. The porous spiral-pipe catcher is simple in structure, good in automobile exhaust purification effect, stable in performance, convenient to clean and low in cost. By the aid of the method, the PM 2.5 in the automobile exhaust can be effectively filtered. The catcher has a better using effect on a gas exhaust system of a petrol engine or gas engine.

Description

technical field [0001] The invention belongs to the field of automobile engineering, and in particular relates to an automobile exhaust PM2.5 catcher based on a porous spiral tube and a catch method thereof. Background technique [0002] With the rapid development of the automobile industry, automobile exhaust has become one of the main sources of pollution in the atmosphere. A large amount of particulate matter such as PM2.5 emitted in the exhaust is the main cause of haze weather, which has negative effects on the natural environment and the ecology of animals and plants. estimated damage, especially serious hazards to human health. Authoritative medical research shows that fine particles carry a large number of viruses and bacteria in the air, which can penetrate into the human respiratory system, induce pulmonary sclerosis, asthma, bronchitis, cardiovascular diseases, and even cancer, and seriously damage the immune function of the human body. Therefore, research on ho...

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Problems solved by technology

At present, three-way catalysis, DPF treatment technology, and LYWSQ treatment agent technology are commonly used. These technologies have played a certain role in tail gas treatment, but each has insurmountable shortcomings.

The three-way catalytic technology is mainly for the treatment of harmful gases such as CO and NO, but it is ineffective for the treatment of PM2.5 solids. On the contrary, the three-way catalyst is easily covered by PM2.5, which weakens its original function and causes exhaust pollution. smooth

Some European and American countries use DPF technology to treat PM2.5, which uses a small-pore honeycomb filter membrane. This method is more likely to cause unsmooth exhaust emissions, resulting in increased engine back pressure and increased exhaust energy consumption. Moreover, fuel consumption is increased and more pollutants are discharged; in addition, DOC-assisted DPF regeneration and idling regeneration methods will cause energy loss and DOC and DPF performance aging. Moreover, my country has not really mastered this technology, and the price is very expensive, so it is not suitable my country's auto market

LYWSQ vehicle exhaust PM2.5 treatment agent technology is a method of adding a combustion aid to fuel to improve combustion efficiency and reduce exhaust pollutant emissions. Its effect is not good, durability is not good, and the cost is high. Uncertainty about negative effects

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