Pulse back-blowing soot cleaning device and its gas ejector and filter device
A technology of pulse back blowing and soot cleaning device, which is applied in the field of pulse back blowing soot cleaning device and its gas ejector and filter device. It can solve the problem of great difference in cleaning effect, more severe filter tube vibration, and difficult removal of dust layer. To achieve the effect of avoiding the bridging of the dust layer, uniform and thorough dust removal, and reducing the risk of thermal shock and fatigue fracture
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[0028] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.
[0029] Figure 2a , 2b and 2c are gas ejectors of a pulse back-flushing soot cleaning device provided by the embodiment of the present invention. The gas ejector includes an ejector body, and the ejector body includes an inlet portion 21, a neck portion 22 and a bow portion 23 connected to each other in sequence, wherein the inlet portion 21, the neck portion 22 and the bow portion 23 are longitudinally sectioned. The heights h1, h2 and h3 of the ejector body change from large to small and then large in turn. The upper end of the bow is arc-shaped; more than three output ports of the ejector body are set at the bottom of the bow, and each output port corresponds to an external filter element inlet. .
[0030] In this...
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