Anti-impingement device for steam inlet of shell-and-tube heat exchanger

The utility model relates to an anti-impingement device for steam inlet of shell-and-tube heat exchanger, a tapered flared tube and tapered impingement baffles in the tapered flared tube are arranged at a steam inlet of the shell-and-tube heat exchanger, the flared tube is welded between a steam inlet short tube and the impingement baffles for forming a steam inlet anti-impingement connecting tube, the taper of the flared tube is 60 degrees-90 degrees, and a plurality of small holes are drilled on the impingement baffles. The two impingement baffles are symmetrically distributed at the axial line of the steam inlet, and the two impingement baffles constitute the slope of 10 degrees-60 degrees. The anti-impingement device has the benefits that the flared tube is arranged in the steam inlet, thereby relieving the impingement of steam on a heat exchange tube, increasing the number of arranged tubes and improving the heat exchange efficiency; and the impingement baffles with the holes in the flared tube can lead