Urea concentration analyzer, urea content detection special refractometer and other testing instruments to quickly detect the concentration of urea in the vehicle, built-in special curve can test the vehicle urea concentration, DEF, AUS32 and ADBLUE concentration, compared to the traditional Kjeldahl method, this The instrument does not consume chemical reagents, and the detection is quick and convenient. The sample can be loaded in 0.3 ml at a time, and the concentration value can be read in 3 seconds.
The Ministry of Environmental Protection's "Notice on Implementing the National Stage IV Compressed Combustion Engine and Automotive Pollutant Emission Standards" stipulates that all cars manufactured, imported, sold and registered will be compression-ignited from July 1, 2013. Engines and cars must meet the requirements of the National Standard. "The so-called compression ignition engines and automobiles for vehicles mainly refer to diesel engines and diesel vehicles.
According to the Voice of Economics, the pollution of large truck exhaust emissions is an important factor that seriously affects the parameters of PM2.5. According to the data of the Ministry of Environmental Protection, in 2011, China's diesel vehicles accounted for only 6.3% of the total vehicle ownership, while nitrogen oxide emissions accounted for 67.2% of the country's annual automobile NOx emissions, and particulate PM emissions. It accounts for 78.8% of the total displacement of the car. Harnessing heavy diesel vehicle exhaust pollution has become the top priority of vehicle emission reduction. These conditions will improve with the enforcement of the National 4 emission standards.
The implementation of this technology is mainly based on the SCR technology, the so-called "SCR technology". Simply put, the urea treatment solution is used to convert the nitrogen oxides in the exhaust gas into uncontaminated nitrogen and water. This method absorbs 80% of the nitrogen oxides in the exhaust gas. At present, domestic heavy-duty diesel vehicle production plants mainly use this technology to meet the national four emission standards.
The scientific name of automobile urea is diesel exhaust gas treatment liquid. Used in diesel engines. Its composition is 32.5% high purity urea and 67.5% deionized water.
The urea content directly affects the catalytic efficiency of NOx and the freezing point of the urea solution. In the SCR reduction system, the concentration of urea solution is one of the key factors. Too high or too low concentration can not only improve the conversion efficiency of NOx, but also cause the slip of ammonia (due to the excessive NH3/NOx ratio). Ammonia gas is lost), forming a secondary pollutant ammonia gas.
As early as 2006, ATAGO developed a variety of vehicle urea concentration meters for European and North American markets to test DEF, AUS32 and ADBLUE concentrations. Facilitate and quickly assist relevant units to manage and control the concentration of urea used in vehicles, such as urea production enterprises, vehicle urea liquid transportation channels, gas stations, diesel transmitter production units, etc.
ATAGO now has two types of urea concentration analyzers, PAL-UREA and RX-5000i. PAL-UREA is a urea concentration meter for digital mini-cars. It is hand-held digital display and easy to carry. The measurement is simple and the RX-5000i is a special refractometer for benchtop urea content detection. The measurement is more accurate than the handheld type.
Urea concentration analyzer, urea content detection special refractometer and other testing instruments to quickly detect the concentration of urea in the vehicle, built-in special curve can test the vehicle urea concentration, DEF, AUS32 and ADBLUE concentration, compared to the traditional Kjeldahl method, this The instrument does not consume chemical reagents, and the detection is quick and convenient. The sample can be loaded in 0.3 ml at a time, and the concentration value can be read in 3 seconds.
After the new standard is enforced, each gas station needs to keep the urea liquid for the vehicle. The diesel car is like the daily refueling. The gas station must be replenished with the vehicle urea solution, the vehicle urea DEF concentration meter, and the vehicle urea concentration meter. Will play an important role in this change.
If you want to learn more about products, technical parameters and application solutions, please pay attention to ATAGO.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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