An air outlet for a ventilation duct
A technology for ventilation ducts and air outlets, applied in the direction of noise suppression, airflow control elements, etc., can solve the problems of air leakage at the air outlet and high regeneration noise at the air outlet, and achieve the effect of reducing noise, reducing noise, and solving high regeneration noise.
Active Publication Date: 2018-11-13
INST OF ACOUSTICS CHINESE ACAD OF SCI
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[0003] The object of the present invention is to provide an air outlet for a ventilation duct, which can meet the requirements of low-noise and ensure the complete closure of the tuyere, and its simple structure, convenient processing, simple and flexible adjustment, modular arrangement and wide application occasions
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[0032] An air outlet for a ventilation duct of the present invention will be described in detail below in conjunction with the drawings and embodiments.
[0033] Such as figure 1 As shown, a kind of air outlet for ventilation duct of the present invention comprises: blade 2, inner casing 5, outer casing 6 and installation frame 7; figure 2 As shown, the mounting frame 7 is a ring-shaped structure through the center, and protrusions 14 are provided at both ends; the inner shell 5 and the outer shell 6 are both cylindrical structures, and the inner shell 5 is nested in the In the inner cavity of the shell 6, the shell 6 is erected in the groove formed by the two protrusions 14 of the installation frame 7, and the outer shell 6 and the inner shell are connected by the rotating shafts 11 respectively provided on the two protrusions 14. The two ends of 5 are coaxially connected; the inner shell 5 and the outer shell 6 are symmetrically provided with two openings for air supply al...
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The invention provides a ventilation duct air outlet comprising blades (2), an inner housing (5), an outer housing (6), and a mount frame (7); the inner housing and the outer housing are respectively in a cylindrical structure; the inner housing (5) is nested in the cavity of the outer housing (6), and said two are coaxially connected; the inner housing (5) and the outer housing (6) are respectively symmetrically provided with two air outlet openings; the plurality of blades (2) are arranged in the cavity of the inner housing (5), and vertically arranged between the two openings at equal intervals along the central axis of the inner housing (5); the ventilation duct air outlets can ensure low noises, and the air outlets can be fully closed; the ventilation duct air outlet is simple in structure, convenient in processing, simple and flexible in adjusting, suitable for wide occasions, and can be assembled in modularization.
Description
technical field [0001] The invention relates to the technical field of ventilation ducts, in particular to an air outlet for ventilation ducts. Background technique [0002] In recent years, conventional air outlets for ventilation ducts use double-layer louver air outlets. The double-layer louver air outlets have two layers of movable blades that are perpendicular to each other and can adjust the angle. The short blades are used to adjust the diffusion of the air supply airflow. Angle, and adjusting the long blades can make the air supply air flow adhere to the ceiling or fall at a certain angle. However, the manufacturing precision of the double-layer louver air outlet is low. When the high-speed airflow blows on the surface of the blade, it will cause the blade to vibrate violently, which will generate high noise; The problem of air leakage occurs due to lax closure. Therefore, as people's requirements for working and living environments are increasing day by day, the a...
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IPC IPC(8): F24F13/14F24F13/24
Inventor 田静程晓斌王文彬张纯巩杨军
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI