Electrical-control adjustable graded vacuum preloading test device for water discharge capacity measurement

The utility model discloses an electrical-control adjustable graded vacuum preloading test device for water discharge capacity measurement. The electrical-control adjustable graded vacuum preloading test device comprises a water tank, a test soil body box and a computer, wherein a frequency-conversion pump is mounted in the water tank and connected with a first water outlet pipe; the first water outlet pipe is connected with a second water outlet pipe through an electric water valve; the second water outlet pipe is connected with a water return pipe through a venturi vacuumshooting gun;the water return pipe is connected with the water tank; the venturi vacuumshooting gun is connected with a second exhaust pipe; the second exhaust pipe is connected with a first exhaust pipe through an electric air valve; the first exhaust pipe is connected with a gas-liquidsplit-flow bottle; the gas-liquid split-flow bottle is connected with the test soil body box through a water pumping pipe; a water drain valve is arranged a