5results about How to "Reduce pressure drop" patented technology

The invention provides a PTFE foam coating multifunctional dedusting and denitration filter material and a preparation method thereof, and the technology is realized through the following steps: firstly preparing an efficient denitration catalyst, then preparing a dedusting filter material taking double base cloth as a substrate, and enhancing the structural stability through a special process. Then, the catalyst powder is uniformly impregnated in the substrate layer and dried to ensure the maximization of the catalytic activity. Then, a PTFE foaming coating is prepared, the surface of the needled felt is accurately coated with the PTFE foaming coating, the uniformity of the coating and the strong adhesive force of the coating and the base material are ensured through a gradient drying technology, and preparation of the multifunctional dust removal and denitration filter material is completed. According to the filter material, the PTFE foam coating and the efficient catalyst are combined, the integrated removal efficiency of various pollutants in industrial flue gas is effectively improved, the filter material is suitable for large-scale production, the cost effectiveness is optimized, the filter material has obvious advantages in economical efficiency and market application, and an efficient and economical solution is provided for industrial flue gas purification.

The utility model relates to a polymeric kettle device which comprises a kettle body and an internal heating assembly, the internal heating assembly is arranged in the kettle body and comprises a feeding main pipe, a feeding pipe, a collecting pipe, a discharging pipe and a discharging main pipe, the feeding main pipe and the discharging main pipe are arranged close to the bottom of the kettle body, the collecting pipe is arranged above the feeding main pipe and the discharging main pipe, and the discharging pipe is arranged below the feeding main pipe and the discharging main pipe. One ends of the feeding pipes are communicated with the feeding header pipe, the other ends of the feeding pipes are communicated with the collecting pipe, one ends of the discharging pipes are communicated with the collecting pipe, and the other ends of the discharging pipes are communicated with the discharging header pipe. According to the polymerization kettle device, the multiple feeding pipes and the multiple discharging pipes are adopted in the inner heating assembly arranged in the kettle body, the multiple pipes are fed and discharged at the same time, the flow of a pipeline is increased, the flow path of a heating medium in the pipeline is shortened, and the pressure drop of the pipeline is effectively reduced, so that the temperature difference between an inlet and an outlet of the heating medium can be effectively reduced; the temperature distribution of the materials in the kettle body is more uniform, and the materials in the kettle body are prevented from coking.

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.