Air inlet diversion type blade blind window for ship

Abstract

The invention relates to an air inlet diversion type blade blind window for a ship. The blind window comprises bent blades, each bent blade is divided into a flow feeding part and a flow discharging part, and the two parts are connected into a whole; the flow feeding parts are inclined upwards by a certain angle from front to back, the flow discharging parts are inclined by a certain angle from front to back, and the two parts are in smooth transition; the bent blades are sequentially arranged from top to bottom; the air inlet diversion type blade blind window for the ship is arranged at a total air inlet of the ship to block steam, so that the steam is gathered into water drops which flow downwards along the part near the flow. According to the blind window, the guide blade form is adopted, and the air flowing direction is corrected gently; the regional flow field of the blind window can be better optimized, and flowing resistance of the regional flow field is lowered; for the same fan pressure head, a higher flow velocity can be achieved, the blast capacity is effectively raised, and more economical efficiency is achieved; for a wind channel structure with a wind channel bent downwards after entering the blind window, the resistance reduction effect is more obvious, the degree of lowering the requirements of a draught fan is lager, the energy saving property is better, and thus the blind window is particularly practical.

Description

technical field [0001] The invention relates to a marine air inlet guide type blade shutter, which belongs to the technical field of marine air inlet shutters. Background technique [0002] The ventilation system is an important system in the normal operation of the ship, and the use of shutters is relatively common, mainly used to prevent rainwater and wind and waves from entering the ventilation cabin. The louver is essential in the ventilation system and is at the same time a resistance element that consumes the work of the fan. [0003] At present, the conventional louver blades generally adopt the inclined blade type, such as figure 1 As shown, before the sea breeze containing water vapor enters the ship, it must first pass through the shutters. When it flows through the blade area, the water vapor in the air adheres to the blades to condense into water droplets, and the air with reduced water vapor content enters the ventilation system to achieve barrier The purpose ...

AI Technical Summary

Problems solved by technology

In the ventilation system, the pressure loss will also be caused by other resistance elements (such as elbows, different diameters, etc.) and pipeline friction loss, which is undoubtedly a huge challenge for the commonly used fans with a positive pressure of 600-700Pa

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