The application discloses a disconnecting energy dissipation facility of a building
siphon rainwater
system for a
sponge city, which comprises an energy dissipation box body (1), water inlet pipes (2) and water outlet pipes (5) are alternately connected to the upper and lower sides of the left and right side walls of the energy dissipation box body (1), the water inlet pipes (2) extend into the lower bottom of the energy dissipation box body (1) and are divided into a slanting tee joint, a pipeline extending straight along the water inlet pipes (2) is a shunt
pipe (3), a pipeline extending upward and obliquely from the water inlet pipes (2) is an inner chamber main
pipe (4), the upper end of the inner chamber main
pipe (4) is connected to the water outlet pipes (6), and the side wall of the energy dissipation box body (1) is provided with a side wall water outlet (6). The technical effect of the application is that the energy of high-energy
siphon rainwater is reduced, the water outlet of the
siphon rainwater
system can be safely discharged to outdoor
sponge facilities, a large amount of inflow rainwater under high flow can be discharged, and the problems of geyser caused by
water stagnation in the facility and loss of energy dissipation function caused by rainwater filling the whole box are avoided.