The application provides a
heat pipe and a heat dissipation
system thereof, and the
heat pipe comprises an inner
pipe and an outer
pipe, the inner
pipe is arranged inside the outer pipe, a gap is arranged between the inner pipe and the outer pipe, the outer pipe comprises a first end and a second end, the first end of the inner pipe is connected to the inner wall of the outer pipe through a connecting wall and extends from the first end of the outer pipe to the second end to form the second end of the inner pipe, a gap is arranged between the second end of the inner pipe and the second end of the outer pipe, the first end of the inner pipe is arranged at a distance from the first end of the outer pipe, the first end of the inner pipe and the first end of the outer pipe form an
evaporation part of the
heat pipe, a
steam injection hole is arranged on the inner pipe and used for injecting steam generated at the
evaporation end to the inner wall of the outer pipe, and the outer wall of the outer pipe is used for heat dissipation. The application can
impact the laminar bottom layer of heat exchange by arranging the inner pipe and the outer pipe and injecting steam through the
steam injection hole of the inner pipe, the steam
convection heat exchange is strengthened, and the heat dissipation effect of the heat pipe is improved.