Indoor adaptive ventilation system and method based on multi-vent ventilation modules

Patent metadata

Field	Value
Publication number	US-12510259-B2
Application number	US-202217672716-A
Country	US
Kind code	B2
Filing date	Feb 16, 2022
Priority date	Nov 13, 2021
Publication date	Dec 30, 2025
Grant date	Dec 30, 2025

Abstract

The invention discloses an indoor adaptive ventilation system and method based on multi-vent ventilation modules, comprising at least one multi-vent ventilation module, the multi-vent ventilation modules comprise air reversing valves and ventilation ducts, the multi-vent ventilation ducts are connected with the air reversing valves, the air reversing valve comprises a box body, a box cover, a reversing mechanism, a supply air main duct, a return air main duct, a fixed supply air branch duct and multiple variable air direction branch ducts; a plurality of variable air direction branch ducts are evenly arranged in the circumferential direction of the box body. The invention can divide the indoor space into different sub-spaces, control pollutants in a smaller area, reduce the possibility of large-scale pollutant diffusion, and realize that the supply air outlets and the return air outlets can be switched mutually to adapt to different usage scenarios and needs.

First claim

The invention claimed is:

1 . An indoor adaptive ventilation system based on multi-vent ventilation modules, comprising at least one multi-vent ventilation module, multi-vent ventilation modules comprise air reversing valves and ventilation ducts, the multi-vent ventilation ducts are connected with the air reversing valves, the air reversing valve comprises a box body, a box cover, a reversing mechanism, a supply air main duct, a return air main duct, a fixed supply air branch duct and multiple variable air direction branch ducts, a cavity is arranged inside the box body, the box cover is buckled at the top of the box body, the reversing mechanism is installed in the cavity, the center of the top of the box cover is connected with the supply air main duct, and the center of the bottom of the box body is connected with the return air main duct; the fixed supply air branch duct is connected to one side of the supply air main duct; a plurality of variable air direction branch ducts are evenly arranged in circumferential direction of the box body;
wherein the box body and the box cover are both provided with air outlets, which are respectively connected with the supply air main duct, the return air main duct, the fixed supply air branch duct and a plurality of variable air direction branch ducts; wherein there are three variable air direction branch ducts, the center lines of the three variable air direction branch ducts are on the same plane, and the angle between the center lines of adjacent variable air direction branch ducts is 120 degrees; wherein the reversing mechanism comprises a center rod, a gear, a motor, longitudinal partitions, a transverse bottom plate and transverse top plates, the center rod is arranged in the cavity and is rotatably connected with the center of the bottom of the box body, the gear is connected to the top of the center rod, the motor is installed at the bottom end of the box cover, and the output end of the motor engages with the gear, there are three partitions, which are evenly distributed in the circumferential direction of the central rod; the three partitions divide the cavity into three regions, and the bottom end of one region is connected with the transverse bottom plate, and the top ends of the other two regions are both connected with the transverse top plates.

2 . The indoor adaptive ventilation system based on multi-vent ventilation modules according to claim 1 , wherein there are a plurality of multi-vent ventilation modules arranged side by side in parallel; adjusting the reversing mechanism can respectively form three modes of supply air outlets and return air outlets: cross mode, parallel mode and vertical mode.

Assignees

• Univ Beijing Technology

Inventors

• Zhang Weirong
• Zhang Haotian
• Zhang Weijia
• Qing Zhixi

Classifications

• F24F13/06

  Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser · CPC title

• F24F11/65

  for selecting an operating mode · CPC title

• F24F2221/38

  Personalised air distribution · CPC title

• F24F13/02

  Ducting arrangements · CPC title

• F24F2013/0616

  Outlets that have intake openings · CPC title