| 摘要 |
FIELD: heat exchanger apparatus. SUBSTANCE: device may be used as evaporative condenser, fluid medium cooler or moisture-and-air cooler. Device is provided with direct evaporative heat exchange section located above indirect evaporative heat exchange section. Air supply zone common for both heat exchange sections receives air flow blown to this zone by at least one fan creating increased pressure in chamber; under action of this pressure flow is divided entering each section inside device, thus excluding the necessity of receiving the air in separate zones. Passage of air flow in counterflow through direct heat exchange section makes it possible to obtain evenly cooled evaporating liquid which is used for indirect heat exchange. Flow of evaporating liquid is parallel to air flow in indirect heat exchange section. Technological fluid medium inside loops of indirect heat exchange may absorb or give off heat to evaporating liquid flowing from direct heat exchange section. Part of heat is transferred to air flow in indirect heat exchange section in form of sensible or latent heat, thus increasing or decreasing the enthalpy of air flow. Remaining heat may be accumulated or released by evaporating liquid at rise or drop of temperature. Evaporating liquid is accumulated in reservoir and then it is pumped upward for redistribution in direct evaporative heat exchange sections. EFFECT: reduced overall dimensions; low cost; increased heat exchange capacity. 25 cl, 13 dwg |
