Attached jet flow tail end air supply device suitable for column/wall and ventilation system

Abstract

The invention provides an attached jet flow tail end air supply device suitable for a column/wall. The attached jet flow tail end air supply device comprises a shell, wherein a flow guide hole plate and a partition plate are arranged in the shell; the flow guide hole plate is horizontally arranged; the partition plate is located below the flow guide hole plate and vertically arranged; the inner space of the shell is divided into a flow stabilizing area, an air inlet area and an air outlet area through the flow guide hole plate and the partition plate; an air inlet is formed in the position, inthe air inlet area, of the shell; and the bottom of the air outlet area vertically extends downwards to form a flow guide section. An air supply opening is formed in the flow guide section. Accordingto the attached jet flow tail end air supply device, the flowing distance of air in the shell is increased, the proportion of converting dynamic pressure into static pressure is increased, and the air outlet uniformity is improved; and meanwhile, due to the fact that the flow speed of air supply jet flow close to the column or the wall face is large, the static pressure is small, the static pressure away from the column or the wall face is large, the attaching effect is formed on the side wall through air supply under the action of the pressure difference, the air outlet range is prolonged, and therefore the mixing degree of air outlet airflow and indoor hot air is weakened, the air supply jet flow distance is increased, and the blowing feeling of the air supply airflow to personnel is reduced.

Description

technical field [0001] The invention belongs to the technical field of ventilation and air conditioning, and in particular relates to an attached jet end air supply device and a ventilation system suitable for columns / walls. Background technique [0002] Building airflow organization is one of the main means to create an indoor environment, and it is also the ultimate embodiment and the most direct terminal technology of the ventilation and air conditioning system, which is directly related to the final effect of environmental protection and the energy utilization efficiency of the system. [0003] Among the forms of airflow organization in buildings, traditional hybrid ventilation and displacement ventilation are the most widely used airflow organization methods in engineering. [0004] For hybrid ventilation, it is characterized by high speed, large momentum and turbulent air supply. The layout of its supply and return air outlets is flexible, and it has the advantage of n...

AI Technical Summary

Problems solved by technology

However, if the high-speed cold wind blows directly on the human body, it will cause local thermal discomfort, and it is easy to change the flow form from plug flow to mixed flow, which will weaken the ventilation effect. Therefore, displacement ventilation is generally used in environments with low room loads.

At the same time, the layout of displacement ventilation generally needs to occupy the effective space in the lower part of the room or the floor height needs to be raised, which has higher requirements on the building space.

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