High-pressure-difference large-flow pressure reducing device

The utility model relates to a high-pressure-difference large-flow pressure reducing device which comprises a plurality of throttling and pressure reducing short sections which are connected in series, a continuous flow channel is formed in the throttling and pressure reducing short sections which are connected in series, the head end of the flow channel is connected with an inlet connector, and the tail end of the flow channel is connected with an outlet connector. A plurality of throttling parts for step-by-step pressure reduction are arranged in the flow channel from the head end to the tail end, and the throttling channel diameters d of the throttling parts are arranged in a gradient mode from small to large. The utility model discloses and provides a high-pressure-difference large-flow pressure reducing device, which realizes that high-pressure water reaching up to 0-35MPa is reduced to below 0.8 MPa under the rated flow rate of 0-30m < 3 >/h through multi-stage throttling pressure reduction, reduces the