Small-offset-distance S-shaped spray pipe with cooling support plate

The invention discloses a small-offset-distance S-shaped spray pipe with a cooling support plate. The small-offset-distance S-shaped spray pipe comprises a small-offset-distance S-shaped spray pipe body which forms a shielding radiation/scattering source so as to reduce radiation/scattering signals. The cooling support plate effectively shields a high-temperature component radiation/scattering source at the inlet section at the outlet section of the S-shaped spray pipe, so that the internal high-temperature component radiation/scattering source cannot be directly irradiated from the outlet section to meet invisibility, and the small-offset-distance S-shaped spray pipe is only bent once, so that the occupied space matched with an engine is reduced, and the service life of the engine is prolonged. The double-S-bend spray pipe solves the problem that the occupied space is large when the double-S-bend spray pipe is bent twice and matched with an engine, and the situation that the double-S-bend spray pipe is diffi