3results about How to "Reduce pressure drop" patented technology

The utility model relates to the technical field of regulating valves, in particular to a multi-hole type valve cage structure and a regulating valve, and the multi-hole type valve cage structure comprises a plurality of stages of valve cages which are mutually nested; each stage of valve cage is provided with a plurality of throttling holes, the throttling holes are stepped holes, the front ends of the throttling holes in the fluid flowing direction are first hole diameters, the rear ends of the throttling holes in the fluid flowing direction are second hole diameters, and the first hole diameters are smaller than the second hole diameters. Through the multi-stage nested design, the overall pressure difference is dispersed to all stages of valve cages, the pressure drop amplitude of each stage is effectively reduced, and therefore the phenomena of flash evaporation and cavitation which are likely to happen under the high-pressure-difference working condition are remarkably restrained. The throttling holes in each stage of valve cage are of a stepped hole structure, the small hole diameter at the front end contracts fluid to improve the local flow speed, the large hole diameter at the rear end expands to reduce part of pressure and slow down the flow speed change, the energy release rate is reduced through the throttling holes of the multistage valve cage, and noise and vibration are effectively reduced.

This invention provides a pressurized mixing and dosing device for improving ozone utilization. The device includes: a mixing tank mounted on top of a support; a top cover mounted on the top of the mixing tank; a mixing assembly mounted on top of the top cover; a pressurizing device mounted on top of the top cover; and two first valves mounted on top of the top cover, one with a first inlet pipe and the other with a second inlet pipe. This pressurized mixing and dosing device for improving ozone utilization significantly reduces pressure drop and ozone release by stabilizing back pressure, thus minimizing ineffective loss. The gradient mixing of the two liquids through slowing, diffusion, and then mixing avoids localized over-concentration and decomposition of ozone, improving utilization. This increased utilization also significantly reduces ozone consumption and operating costs, offering better economic benefits compared to atmospheric pressure mixing methods.

The utility model discloses a streamline and flow balance type electric precipitator front flue which comprises a smoke inlet and two shunting interfaces, the two shunting interfaces are arranged at the output end of the smoke inlet, the two shunting interfaces and the smoke inlet are arranged in a Y shape, the two shunting interfaces are symmetrically arranged, the symmetry axis coincides with the center line of the smoke inlet, and the two shunting interfaces are arranged in a Y shape. A row of flow guide plates I arranged at intervals are arranged in the communicating positions of the flow dividing connectors and the smoke inlet, horizontal flow dividing pipes and inclined flow dividing pipes located on the outer sides of the horizontal flow dividing pipes are arranged at the rear ends of the flow dividing connectors, and compared with the prior art, local vortex and turbulent flow phenomena can be effectively eliminated, and the possibility of dust deposition is reduced.