AdBlue solution quality detection device capable of preventing bubble interference
A technology for vehicle urea and quality detection, which is applied to measuring devices, using sonic/ultrasonic/infrasonic waves to analyze fluids, and using sonic/ultrasonic/infrasonic waves for material analysis, etc.
Pending Publication Date: 2021-11-05
DONGFENG COMML VEHICLE CO LTD
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[0006] The embodiment of the present application provides a vehicle urea solution quality detection device that prevents bubble interference, so as to solve the problem in the related art that the bubbles in the urea solution often cause errors in the ultrasonic urea concentration sensor.
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[0037] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.
[0038] The embodiment of the present application provides a vehicle urea solution quality detection device that prevents bubble interference, which can solve the problem in the related art that bubbles in the urea solution cause frequent error reports in the ultrasonic urea concentration sensor.
[0039] see Figure 1 to Figure 5 As sh...
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The invention relates to a AdBlue solution quality detection device capable of preventing bubble interference, and belongs to the technical field of urea tank urea solution quality detection. The AdBlue solution quality detection device comprises a bubble eliminator and a quality detector; the bubble eliminator is arranged in a urea tank and immersed in a urea solution, and the bubble eliminator comprises a hollow outer shell; a liquid inlet and an exhaust hole which are arranged in a height difference mode are formed in the outer shell, and the position of the exhaust hole is higher than that of the liquid inlet; the quality detector is arranged in the outer shell, the quality detector comprises a hollow inner shell, a detection module for detecting the quality of the urea solution is arranged in the inner shell, and a liquid inlet hole with an upward opening is formed in the inner shell. The bubble eliminator of the detection device greatly reduces the signal interference of bubbles in the urea solution on the detection module, and the quality detection precision of the detection module on the urea solution is improved. The device is simple in structure, easy to produce and manufacture, low in cost and good in effect. The device is suitable for various urea boxes, and facilitates batch production and manufacturing of enterprises and cost reduction.
Description
technical field [0001] The present application relates to the technical field of urea solution quality detection in urea tanks, in particular to a vehicle urea solution quality detection device that prevents bubble interference. Background technique [0002] The emissions of nitrogen oxides NOx to the atmosphere are becoming more and more stringent in regulations on vehicle emissions. At present, there are two methods to solve this problem, one is through EGR internal purification, and the other is through external purification to treat NOx emissions; urea aqueous solution is hydrolyzed in the exhaust gas flow, and then nitrogen oxides NOx are converted into nitrogen N2 and water H2O. SCR system catalytic conversion devices have been widely used in National IV and National V vehicles, and the SCR system needs to be equipped with a urea water storage device, usually called a urea tank. [0003] The urea tank is equipped with an ultrasonic urea concentration sensor for monit...
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IPC IPC(8): G01N29/02G01N29/22
CPCG01N29/02G01N29/222G01N2291/022
Inventor 侯甲成王启琛许法亮冯坦陈镇
Owner DONGFENG COMML VEHICLE CO LTD