Diesel Exhaust After Treatment of Selective Catalytic Reduction Device (SSCR)

Product Specifications

Processing Methods:	Physics
Pullution Sources:	Air Pollution Control

Product Description

The product is motor vehicle exhaust catalytic device, catalytic diesel exhaust to reach the State IV emission law requires; This product can improve fuel conversion rate, play the effect of saving energy. Currently there is no similar product in the domestic market.

( 1 ) Product advantages. The device is based on the diesel vehicle exhaust aftertreatment devices selective catalytic reduction (SCR), consisting of a solid urea instead of liquid urea, solid urea tank with liquid urea tank, liquid urea solution at low temperature freezing problems, easier to store and carry. Solid urea urea in powder cans inside the state, compared to the liquid urea storage capacity, use a long time. Liquid urea during use, remaining in the residual connection pipe will condense at low temperature connection tube blockage, the solid urea powder used is a gas, not the connection pipe blockage. Liquid urea consumption during use, poor control, prone to waste, solid urea can solve this problem.

( 2 ) How it works: The device consists of a solid urea SCR tank and tank components, and car boot device is connected to power, it has a small internal reservoir of ammonia unit, electric heating quickly produce NH3, by the ferrule needle valve control ammonia emissions in the automotive cold start temporary provision NH3. During this period the temperature controller to adjust the car DELTD circulating fluid heating generates heat ammonia storage section when the subject reaches operating temperature required to work, start the device automatically stop the discharge of ammonia. Ammonia in the main part of the internal storage of the solid urea powder to absorb heat, under the regulation of the pressure controller to produce ammonia, and then through the trachea into the SCR box. Start unit and main storage device convergence ammonia and solid urea tank internal processing by the control box assembly to adjust. At the same time through the vehicle exhaust car exhaust pipe into the SCR box. Mixing two gases, through the metal foam support and metal wire carrier generating a series of chemical reactions, NOx in the exhaust gas and NH3, N2 generated nontoxic and H2O, thus purifying automobile exhaust pollution out of the gas, and finally purified the exhaust gas is discharged outside of the vehicle.

The system also includes setting the SCR box inside the intake silencer pipe, the muffler inlet pipe and motor vehicle exhaust pipe connected to pass, that motor vehicle exhaust through the exhaust pipe directly into the intake silencer pipe, and then from the inlet the hole in the gas flow muffler pipe metal carrier. The intake silencer settings can effectively reduce system noise.