Gas particulate traps and vehicle exhaust particulate traps

Abstract

The invention provides a catcher for particulate matters in gas and a motor vehicle tail gas particulate matter catcher. The catcher for the particulate matters in the gas comprises a shell, a gas inlet pipe, a plurality of porous partition plates and a gas outlet pipe, the gas inlet pipe is arranged at the lower portion of one side of the shell and serves as an inlet for the gas containing the particulate matters, the plurality of porous partition plates are arranged in the shell and are horizontally arranged in a cavity in a layered mode from bottom to top, a plurality of purification unitsare arranged on each layer of porous partition plate, the gas outlet pipe is arranged at the upper portion of the other side of the shell and serves as an outlet for the filtered gas. In the motor vehicle tail gas particulate matter catcher, air flow is fully contacted with the purification units, so that the filtering efficiency is improved, meanwhile, the cross sectional area is large when the gas pass through the purification units, so that the back pressure is reduced, the purification units adopt a high-temperature-resistant material, so that high-temperature loss in the tail gas environment is avoided.

Description

technical field [0001] The present disclosure relates to the field of particle traps, in particular to a particle trap in gas and a motor vehicle exhaust particle trap. Background technique [0002] With the deepening of my country's industrialization and urbanization, energy consumption is increasing, and the form of air pollution is also becoming more serious. The regional atmospheric environment characterized by inhalable particulate matter (PM10) and fine particulate matter (PM2.5) is becoming increasingly serious. protrude. According to the statistics of the environmental protection department, the tail gas emitted by motor vehicles is the main source of urban PM2.5. [0003] Capturing particulate matter in motor vehicle exhaust is an effective way to reduce urban PM2.5. At present, the existing technologies mainly use physical filtration to remove particulate matter in exhaust gas, such as the particulate filter (Diesel particular filter, DPF) used in diesel vehicles....

AI Technical Summary

Problems solved by technology

In order to filter smaller particles, the pore size of the filter needs to be reduced, but this will increase the back pressure and fuel consumption of the engine

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