Central ventilation system for cold regions and method thereof

Abstract

The invention discloses a central ventilation system for cold regions. The central ventilation system comprises an air intake pipe, an indoor space caliduct, a fresh air heating pipe, a fresh air supply pipe, an air conditioning system and an air exhaust pipe; the fresh air heating pipe sleeves an outer ring of the caliduct; the two ends of the fresh air heating pipe are closed; the intake pipe isarranged on the fresh air heating pipe in a communicating manner; the intake pipe is arranged at the external of indoor space in an extension manner; a primary air purifying device is arranged in thecaliduct; the fresh air supply pipe is arranged on the fresh air heating pipe in a communicating manner; the air conditioning system for supplying air into the indoor space is arranged on the fresh air supply pipe; and the exhaust pipe is arranged by ventilating to the outdoor space. The central ventilation system for the cold regions and a method thereof perform the fresh air exchange for the indoor space, and enable the heat utilization to be more reasonable.

Description

technical field [0001] The invention belongs to the field of fresh air systems, and in particular relates to a fresh air system and method used in cold regions. Background technique [0002] In recent years, with the intensification of industrialization, the increase in the number of motor vehicles and the acceleration of urban construction, the problem of urban air pollution has quickly become the focus of people. In order to avoid being affected by outdoor environmental pollution, people spend more and more time indoors, but the indoor air condition is also not optimistic. At present, a large number of technologies and products related to fresh air systems have emerged, such as Panasonic’s full heat exchange fresh air system, which uses two-way ventilation to send outdoor fresh air into the room while exhausting indoor dirty air to the outside; another example is the BROAD Clean Fresh Air System , The fresh air bypass valve is installed in the clean fresh air machine, whic...

AI Technical Summary

Problems solved by technology

In order to avoid being affected by outdoor environmental pollution, people spend more and more time indoors, but the indoor air condition is also not optimistic

At present, a large number of technologies and products related to fresh air systems have emerged, such as Panasonic’s full heat exchange fresh air system, which uses two-way ventilation to send outdoor fresh air into the room while exhausting indoor dirty air to the outside; another example is the BROAD Clean Fresh Air System , The fresh air bypass valve is installed in the clean fresh air machine, which is automatically opened in the transitional season, and the fresh air is directly filtered into the room without passing through the heat exchanger. BROAD advocates the principle of fresh air: the fresh air system must be 100% fresh air, and no mixed return air, so that Although it prevents cross-contamination inside the building, when the indoor and outdoor temperature difference is large, such as in winter in Northeast my country, the indoor high-temperature air is discharged outside, and the cold fresh air outside is sent into the room, increasing the heat load of the indoor air conditioner. Increase heating energy consumption in winter

To sum up, only focus on air quality requirements, ignoring energy consumption requirements, there is no energy saving defect

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