FIELD: gas industry.
SUBSTANCE: invention relates to the field of gas industry and can be used in a system for heating the air entering the supply ventilation of an individual shelter or other facilities with installed gas pumping aggregates (GPA) or other technological apparatuses with gas turbine drives (GTD) with cycle air discharge. The technical result is achieved in direct heating of the supply air by the heat discharged with the blowoff air of the air-to-air heat exchanger (AAHE), by mounting an air gas modular duct from the AAHE to the aggregate, containing a two-position air valve, a frequency controlled fan, a pressure measurement sensor and by integrating a linear algorithm for maintaining the temperature of the measured air into the automatic control system by changing the amount of warm air supplied from the AAHE by means of changing the fan rate. The air discharged from the AAHE is pre-purified from mechanical impurities, traces of natural gas and combustion products are not present therein.
EFFECT: provided is direct heating of the supply air entering the individual shelter of the GPA by returning the air discharged from the GTD into the atmosphere via the air-to-air heat exchanger (AAHE) unit into the operating cycle.
1 cl, 2 dwg
