A pipeline internal turbulence device

Abstract

The present invention relates to an internal flow disturbance device in a pipeline, which comprises an outer ring assembly, an inner ring assembly and a flow disturbance assembly fixedly arranged between the outer ring assembly and the inner ring assembly; the outer ring assembly includes at least two outer ring assemblies. a ring body; the spoiler assembly includes a plurality of spoiler vanes distributed in the circumferential direction, and two ends of the spoiler vanes are respectively fixedly connected to the inner surface of the outer ring body and the outer surface of the inner ring assembly, and are respectively connected with the inner surface of the inner ring assembly. The direction of the fluid in the pipeline forms a certain angle. The in-pipe turbulence device is abutted and fixed with the inner wall of the duct, and a turbulent vane is set at the same time to form a certain angle with the fluid in the duct, so as to achieve the technical purpose of turbulent dispersion of the washing water discharged in the duct, The contact area between the washing water and the seawater is increased, the dilution rate is accelerated, and the problem that the local acid value of the seawater is too large due to the concentrated discharge of the washing water, which affects the marine environment, is also effectively reduced.

Description

technical field [0001] The invention relates to the technical field of ship engineering, in particular to a flow turbulence device in a pipeline. Background technique [0002] The International Maritime Organization (IMO) formally decided at the 70th session of the Marine Environment Protection Committee (MEPC70) that starting from January 1, 2020, ships sailing around the world can only use fuel oil with a sulfur content of no more than 0.5%. Meet this requirement to reduce sulfur dioxide (SOx) emissions in the exhaust. [0003] Existing countermeasures mainly include installing an exhaust gas purification system (desulfurization system), using low-sulfur oil fuel, and switching to LNG fuel, etc. The desulfurization tower is installed through seawater or NaOH / Mg(OH) 2 It is a more economical choice at this stage to reduce the emission of sulfides on board by cleaning the SOx in the exhaust gas with liquid. After installing the desulfurization system, there is a large amo...

AI Technical Summary

Problems solved by technology

Please refer to figure 1 and 2 , figure 1 It is a top view schematic diagram of washing water discharge of ship pipelines in the prior art, figure 2 It is a schematic side view of the discharge of washing water in the ship pipeline in the prior art; The diffusion of washing water leads to a higher pH value of seawater in the discharge area; at the same time, the more concentrated washing water has a certain discharge speed. When multiple pipelines are discharged at the same time, the discharged washing water will affect the ship's The propellers cause certain interference and have certain influence on the navigation of the ship

Images