Whole-house fresh air system and whole-house five-constant system for introducing fresh air into active vertical air duct

By installing an active vertical air duct between the room and the public space, and utilizing relay power points and guide vane structure, the problem of fresh air passing through the interior wall in the fresh air system is solved, achieving three-dimensional flow and sound wave blocking, thus maintaining the room's airtightness and privacy.

CN121557550APending Publication Date: 2026-02-24GUANGZHOU WAN ER ER MAI ENGINEERING TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202511939861.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-22
Publication Date
2026-02-24

AI Technical Summary

Technical Problem

In existing ductless whole-house fresh air systems, the question of how fresh air enters the rooms from the living room and hallway through the interior walls affects the room's airtightness and privacy.

Method used

An active vertical duct fresh air introduction system is adopted. By setting up a vertical duct between the room and the public space, and setting up a relay power point and a guide vane structure inside the duct, a duct flow channel is formed to realize the three-dimensional flow of fresh air. The staggered setting of the first air outlet and the second air outlet blocks the transmission of sound waves.

Benefits of technology

It effectively blocks the transmission of sound waves between the inside and outside of the room, improves the efficiency of fresh air replacement, constructs a three-dimensional flow field, maintains the room's airtightness and privacy, and at the same time achieves micro-positive pressure operation to prevent untreated ambient air from leaking into the room.

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Abstract

The invention discloses a whole-house fresh air system and a whole-house five-constant system for introducing fresh air through an active vertical air duct, after fresh air is fed into a public space from a single-tube-pass two-way flow whole-house fresh air system, the fresh air is introduced into the public space under the pushing of a pressure difference jointly formed by the positive pressure of the public space, the suction negative pressure in a room and the pumping and discharging of a relay power point position; and the fresh air is fed into a room through a bent conveying channel formed by the first air opening, the second air opening and the air duct flow channel of the active vertical air duct, and fresh air replacement is achieved. Moreover, the first air opening and the second air opening of the active vertical air duct are oppositely arranged in an up-down staggered manner, so that sound waves in a living room aisle and a room can enter and exit from the room through the whole course and twice large-angle turning of the vertical air duct, and fresh air in a public space can be guided into the room while the inside and the outside of the room are communicated; three-dimensional flowing of fresh air flow is effectively driven, sound wave transmission inside and outside a room is blocked, and the sound insulation effect is good.
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