Air supply device and porous plate thereof

Abstract

The invention discloses a porous plate. The porous plate comprises a plate body, the plate body is provided with a plurality of air holes penetrating in the thickness direction of the plate body, each air hole comprises an air inlet section and an air outlet section which are sequentially arranged in the air flow direction, and the diameter of the air outlet section in the airflow direction is gradually increased. In the device operation process, airflow enters into the air inlet sections from the air inlet ends of the air holes and then enters into the air supply sections, and as the air supply section is in the variable-diameter tapered structure, the dynamic pressure of the air flow on the air outlet ends of the air holes is effectively reduced, thus the difference between the front pressure and the back pressure of the porous plate is correspondingly reduced, and meanwhile the air supply resistance is effectively reduced, the air supply efficiency is improved, and the comfort of the air supply process is correspondingly improved. The invention further discloses an air supply device applying the porous plate.

Description

technical field [0001] The invention relates to the technical field of supporting components of heating ventilation and air supply equipment, in particular to a porous plate. The invention also relates to an air supply device using the perforated plate. Background technique [0002] At present, porous plates are widely used in many fields such as medical treatment, transportation, industry and HVAC. The porous structure can reduce the aerodynamic noise generated by the equipment, and can filter out impurities as a filter device. In passenger cars, medical operating rooms, offices and air conditioners, the high-speed airflow can be rectified into a low-speed and low-turbulence converging jet, so that people do not feel the obvious blowing feeling and improve the comfort of the air supply. [0003] In the existing perforated plate, the opening form of the microhole is generally a through hole with a constant diameter. This opening method makes the air flow through the through...

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Problems solved by technology

[0003] In the existing perforated plate, the opening form of the microhole is generally a through hole with a constant diameter. This opening method makes the air flow through the through hole encounter greater resistance and higher pressure loss, which not only restricts the delivery of the perforated plate. The wind efficiency also adversely affects the comfort of the air supply during the use of the equipment

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