Indoor environment control unit and building environment control system

Abstract

The invention discloses an indoor environment control unit and a building environment control system. The indoor environment control unit comprises an air inflow channel, an exhaust channel, a heat exchange device and a first air return control valve. The air inflow channel comprises a first air inlet communicated with the outside and a first air outlet communicated with the inside. The exhaust channel comprises a second air inlet communicated with the inside and a second air outlet communicated with the outside. The heat exchange device comprises a heat exchange air inflow channel located in the air inflow channel and a heat exchange exhaust channel located in the exhaust channel, the heat exchange air inflow channel is provided with a heat exchange inflow air outlet and a heat exchange inflow air inlet control valve, and the heat exchange exhaust channel is provided with a heat exchange exhaust air outlet and an exhaust air inlet control valve. The first air return control valve is used for making the exhaust channel and the air inflow channel communicated, and making air flow into the heat exchange air inflow channel from the exhaust channel through the heat exchange inflow air inlet control valve when the heat exchange inflow air inlet control valve is switched on. The indoor environment control unit and the building environment control system can adapt to low-temperature environments, and the frosting risk of the unit can be effectively reduced.

Description

Technical field [0001] The embodiment of the present invention relates to the field of heating and ventilation technology, in particular to an indoor environment control unit and a building environment control system. Background technique [0002] Passive building refers to the use of various energy-saving technologies to construct the best building envelope and indoor environment, which greatly improves the building's thermal insulation performance and airtightness, and minimizes the building's heating and cooling requirements. Passive buildings with high airtightness should be equipped with a ventilation system to introduce outdoor air into the room and exhaust the indoor air to the outdoors, thereby replacing the indoor air with outdoor fresh air to meet the indoor demand for fresh air the amount. [0003] The ventilation system in the prior art also uses the heat exchange core to adjust the indoor temperature. By heating the cold air, the heat exchange core (heat exchange devi...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an indoor environment control unit and a building environment control system, which are used to solve the above-mentioned defects in the prior art, effectively reduce the risk of unit frost, improve the working stability of the unit, and the cost is low. At the same time, it can also solve At present, due to the energy waste caused by the large-volume fresh air circulation of household small-volume fresh air units, the indoor air circulation is increased and the indoor comfort is improved.

Images