Device and method for cleaning exhaust air of engine

Abstract

The invention relates to an engine exhaust gas cleaning device and a method; the device is used for cleaning the exhaust gas discharged by vehicles and includes an exhaust gas cleaning drum, a heat dissipating water tank which is connected above the exhaust gas cleaning drum and a storage water tank which is connected under the exhaust gas cleaning drum by a filter; the storage water tank is connected with the heat dissipating water tank through an electric water pump; the exhaust gas cleaning drum is provided with an inlet which is connected with an exhaust gas discharge pipe of a vehicle and an outlet which is used for discharging; a buffer zone used for slowing the flow speed of exhaust gas and a buffer spaying zone used for cleaning exhaust gas are sequentially arranged between the inlet and the outlet. The device can be matched with the existing exhaust treatment device on vehicles for use and can assist to further solve the pollution problem of vehicle emissions, while vehicles do not need to be remodeled.

Description

technical field [0001] The invention relates to the field of exhaust gas treatment, and more specifically relates to an engine exhaust gas cleaning method and device. Background technique [0002] The invention of the automobile has brought great convenience to human life, but the exhaust gas emitted by vehicles and other exhaust gases produced by human activities seriously pollute the air, destroy the natural climate, and lead to the greenhouse effect. The United Nations Intergovernmental Panel on Climate Change issued an assessment report, pointing out that global warming will cause serious damage to the earth, and mankind will face a severe situation of water shortage and food production halving. Too many vehicles around the world emit high-temperature exhaust gas at the same time, which has threatened human health and life safety. To strive to improve air pollution, dealing with vehicle exhaust is an urgent issue. [0003] For vehicles, especially diesel vehicles, the ...

AI Technical Summary

Problems solved by technology

The disadvantage is that if water enters the engine combustion chamber, the engine will be damaged; and the engine exhaust gas is a high-temperature gas, spraying water in the exhaust gas pipe will cause thermal expansion and contraction, and the metal is prone to fatigue and oxidation, greatly shortening the service life

Additionally, if the water is lost, used up, or damaged, the vehicle exhaust is released into the air completely untreated

[0005] In the Chinese utility model patent with the authorized notification number CN 2324291Y, a motor vehicle harmless exhaust exhaust muffler is disclosed. Although it can achieve the purpose of environmental protection to a certain extent, it needs to make the exhaust gas pass through the water, so that the fuel consumption of the engine is reduced. volume increase

In addition, if the water consumption is too high and the water level is lower than the exhaust pipe opening, the device will lose its normal function and will not work

Drivers need to add and change water regularly in a short period of time. If the pollutants accumulate too much, the honeycomb filter will fail and cannot be replaced, leaving waste water inside the device that cannot be processed.

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