Engine tail gas aftertreatment mixing device
A tail gas post-treatment and mixing device technology, which is applied in exhaust gas treatment, exhaust devices, engine components, etc., can solve the problems of low crystallization risk of gas flow rate distribution uniformity, poor gas flow rate distribution uniformity, urea crystallization, and high mixing uniformity. , to achieve the effect of preventing urea crystallization, improving conversion efficiency, and less internal components
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Embodiment 1
[0045] Such as figure 1 , figure 2 , image 3 As shown, the inner cavity of the cylindrical shell 1 of the present invention is provided with an inner shell 4, and the inner shell 4 is located at the middle and lower part of the inner cavity; as Figure 4 As shown, the inner shell 4 divides the inner cavity of the outer shell 1 into an air inlet cavity 9 outside the inner shell 4 and an air outlet cavity 10 inside the inner shell 4; the upper surface of the inner shell 4 is provided with a through air inlet 11 , the air inlet 11 communicates with the air inlet chamber 9 and the air outlet chamber 10 . Such as figure 1 , image 3 As shown, the front end face of the inner shell 4 is provided with a front baffle 3, as figure 2 , image 3 As shown, the rear end of the inner shell 4 is fixed with a tailgate 5, and the tailgate 5 is welded and fixed on the shell 1; the shell 1 is provided with a nozzle seat 2 above the air inlet 11, and the nozzle seat 2 and the urea nozzle ...
Embodiment 2
[0054] Such as Figure 5 , Figure 6As shown, an inner shell 4 is arranged in the inner cavity of the outer shell 1, and the inner shell 4 is located at the middle and lower part of the inner cavity; the inner shell 4 separates the inner cavity of the outer shell 1 into an air intake cavity 9, and an air outlet chamber 10 located inside the inner shell 4; The front end of the inner shell 4 is covered with a front baffle 3, the rear end of the inner shell 4 is fixed with a back baffle 5, and the back baffle 5 is welded and fixed on the outer shell 1; the front and rear sides of the air inlet 11 of the inner shell 4 The first shielding plate 17 and the second shielding plate 19 are fixedly arranged respectively, the upper ends of the first shielding plate 17 and the second shielding plate 19 are fixed on the casing 1, and the bottoms of the first shielding plate 17 and the second shielding plate 19 extend into In the air outlet chamber 10; the first shielding plate 17 is locat...
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