INDIRECT EVAPORATIVE COOLING METHOD AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2019 - IPC F24F3/14 

FIELD: ventilation.

SUBSTANCE: group of inventions relates to ventilation and air conditioning by indirect evaporative cooling and can be used to create comfortable conditions and microclimate in rooms. Technical problem of the group of inventions is solved by the fact that in the indirect evaporative cooling method, which consists in formation of a common air flow prior to entering the heat exchanger, formation of the main and process flows, controlling cooling capacity of the cooled air from the indirect evaporative cooling device, according to the decision, at the heat exchanger inlet the total air flow is divided into two main and additional ones with possibility of their throughput capacity adjustment, wherein main flow is supplied to heat exchanger, and additional flow is supplied to bypass channel, then main flow in heat exchanger is divided into forward and reverse, values of hydraulic resistances of the main and additional flows are selected equal, additional and direct flows are mixed at the outlet of the heat exchanger, forming a cooled flow at the output of the indirect evaporative cooling device, wherein absolute values of process flow and cooled flow at outlet of device are maintained unchanged. Device for indirect evaporative cooling, comprising series-arranged air intake section, indirect evaporative cooling heat exchanger and process section, bypass channel, one of ends of which is connected to process section, according to decision, additionally comprises a section of discharge of process flow, rigidly connected to heat exchanger and located above it, formed as part of reverse cooled main flow, at least one shutter located in front of heat exchanger, bypass channel is equipped with shutter located on the side of air receiving section, to which the other end of bypass channel is connected.

EFFECT: simple and effective method of controlling cooling efficiency of indirect evaporative air cooling while maintaining constant air flow rate.

4 cl, 4 dwg