ENERGY-SAVING VENTILATION AND AIR-CONDITIONING SYSTEM Russian patent published in 2005 - IPC

FIELD: air-conditioning and ventilation systems for living and public buildings.

SUBSTANCE: proposed system includes plenum-exhaust unit with air valves, filter, plate-type recuperative heat exchanger, air cooler, supply fan connected with supply pipe line; mounted in way of exhaust air flow are filter, plate-type heat utilizer, exhaust fan and pipe line of evacuation of exhaust air into atmosphere. Mounted in way of exhaust air before plate-type recuperative heat utilizer is electric air heater which is switched on by pulse of sensors monitoring forming of ice crusts on surfaces of plate-type passages in zone where moisture is condensed at cooling and dehumidifying of exhaust air. Mounted in way of flow of supply air after plate-type recuperative heat utilizer is supply air temperature control sensor which is connected by pulse communication with multi-flap air valve of air bypass passages; supply air ducts are connected to ejection-type terminals mounted under windows of building being serviced; their heat exchangers are connected with centralized and/or local heat and cold sources; connecting pipe lines are provided with automatic valves connected with room temperature sensors. Proposed system ensures control of ice crusts on plate-type heat exchanger with no reduction in recuperation factor; this system also provides for use of natural cold of outside air for removal for excessive heat in spaces served.

EFFECT: enhanced efficiency.

1 dwg