Fresh air distribution box applied to fresh air system and provided with air duct switching device

Abstract

The invention provides a fresh air distribution box applied to a fresh air system and provided with an air duct switching device. The fresh air distribution box comprises a shell provided with an airinlet and an air outlet, an air valve assembly is arranged in the shell, and the air valve assembly is in electric control connection with a control module; the air inlet and the air outlet comprise an air inlet, a built-in air inlet, an indoor air inlet and outlet, an air return port, a built-in air return port, an exhaust port and an internal circulation air port; and the air valve assembly comprises an air inlet valve, an air return valve, an exhaust valve and a fresh air valve. By controlling the opening and closing states of all the air valves in a combined mode, three functions of freshair, air exhaust and internal circulation can be achieved only by using one air distribution box in cooperation with one one-way flow fresh air machine, and compared with an air distribution box mechanism with single fresh air or single air exhaust on the market, the fresh air distribution box has the advantages of being ingenious in structure, complete in function and high in universality; and through switching of internal air ducts, an air supply air duct is shared, so that the air supply air duct can be converted into an indoor air return air duct, and indoor pipeline arrangement is reduced.

Description

technical field [0001] The invention relates to the technical field of ventilation, in particular to a fresh air distribution air box with an air duct switching device applied to a fresh air system. Background technique [0002] With the continuous development of my country's economic level, people yearn for good air quality more and more. However, due to the irrational industrial structure and excessive pollution emissions in some areas, the smog problem has become an important reason affecting local air quality and economic development. [0003] At present, in indoor spaces such as hotel rooms, office buildings, office buildings, and private residences, the fresh air system is mostly supplemented by air distribution boxes to deliver fresh air to each area. However, the applicant found that the existing air distribution boxes can only deliver fresh air in one direction. ; The existing fresh air pipeline cannot be used for reverse exhaust or return air, and the one-way flow ...

AI Technical Summary

Problems solved by technology

[0003] At present, in indoor spaces such as hotel rooms, office buildings, office buildings, and private residences, the fresh air system is mostly supplemented by air distribution boxes to deliver fresh air to each area. However, the applicant found that the existing air distribution boxes can only deliver fresh air in one direction. ; The existing fresh air pipeline cannot be used for reverse exhaust or return air, and the one-way flow fresh air fan can only enter or exhaust air in one direction, which greatly limits the use of the air distribution box and the one-way flow fresh air fan scope of use

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