Low-flow-resistance mute air distributor

Abstract

The invention discloses a low-flow-resistance mute air distributor which comprises a static pressure box, a spherical air volume adjusting mechanism and a conical flow guide plate. An air inlet is formed in the side surface of the static pressure box, an air outlet is formed in the bottom of the static pressure box, and thespherical air volume adjusting mechanism and the conical flow guide plate are arranged in thestatic pressure box; the spherical air volume adjusting mechanism comprises a spherical baffle, a transverse rack adjusting rod and a vertical gear adjusting rod, the spherical baffle is connected with the front end of the transverse rack adjusting rod, and a gear on the vertical gear adjusting rod is meshed with a rack on the transverse rack adjusting rod; the outer wall of the windward side of the conical guide plate is a microporous plate, the outer wall of the leeward side of the conical guide plate is a solid plate, and the space between the microporous plate and the solid plate is filled with noise reduction and heat preservation materials; and the space between the outer wall and the inner wall of the plenum chamber is filled with noise reduction and heat preservation materials, and the inner wall of the plenum chamber is a microwell plate. The low-flow-resistance mute air distributor meets the requirements of low flow resistance, small flow loss and low comprehensive noise (pneumatic regeneration noise, sound transmission loss and the like), is simple in internal structure, small in flow resistance and good in noise reduction effect, and can be widely applied to the tail end of an air conditioner ventilation system.

Description

technical field [0001] The technology relates to a cabin air distributor, that is, a terminal air supply device of a cabin air-conditioning and ventilation system, specifically a low-flow-resistance silent air distributor. Background technique [0002] Ship air-conditioning and ventilation systems generally adopt the design mode of high flow rate and large air volume, while the air supply device at the end of traditional cabin air-conditioning ventilation is a simple straight-type air distributor. Under the action of the plate, the wind forms a high vortex flow in the box. Since the eddy current is an unsteady nonlinear flow, the inner wall of the box is continuously impacted vertically, resulting in large wind noise; in addition, due to the eddy current, the unstable and uneven The wind impacts the diffuser, causing direct noise to enter the cabin, which seriously affects the daily work and life of the cabin personnel. Contents of the invention [0003] The technical pro...

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Problems solved by technology

[0002] Ship air-conditioning and ventilation systems generally adopt the design mode of high flow rate and large air volume, while the air supply device at the end of traditional cabin air-conditioning ventilation is a simple straight-type air distributor. Under the action of the plate, the wind forms a high vortex flow in the box. Since the eddy current is an unsteady nonlinear flow, the inner wall of the box is continuously impacted vertically, resulting in large wind noise; in addition, due to the eddy current, the unstable and uneven The wind impacts the diffuser, causing direct noise to enter the cabin, which seriously affects the daily work and life of the cabin personnel

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