The utility model provides a main
water supply Venturi tube test
system, which belongs to the technical field of pipeline test and comprises a water tank, a
surge tank, a main pipeline, a test pipeline, an
orifice plate flowmeter and an
electromagnetic flowmeter, the water tank is respectively connected with the
surge tank through a first pump body and a second pump body, the main pipeline is connected with the
surge tank, and the test pipeline is connected with the
orifice plate flowmeter. The test pipeline comprises a first
simulation regulating valve, a three-way pipeline, a fluid
rectifier, a Venturi tube and a second
simulation regulating valve, the three-way pipeline is respectively connected with the first
simulation regulating valve, the fluid
rectifier and the second simulation regulating valve, the Venturi tube is connected to the fluid
rectifier, the Venturi tube is connected with a valve, and the valve is connected with the three-way pipeline. The first simulation regulating valve and the second simulation regulating valve are respectively connected to the main pipeline; according to the utility model, the fluid rectifier is arranged at the upstream of the Venturi tube and is used for eliminating or remarkably reducing vortexes and redistributing flow velocity distribution, and a test
system is used for simulating a flow test and optimizing pipeline design.