초록 ▼

The heat transfer medium for rotary air-to-air heat transferrers includes alternate planar and corrugated layers of a fiber-reinforced, heat-curable, organic resinous material. After corrugating and interleaving of the layers, the resultant structure is heated to cure the resin to a hardened state a

The heat transfer medium for rotary air-to-air heat transferrers includes alternate planar and corrugated layers of a fiber-reinforced, heat-curable, organic resinous material. After corrugating and interleaving of the layers, the resultant structure is heated to cure the resin to a hardened state and the layers are bonded together at their points of contact to form a self-supporting, water-proof structure including a plurality of uniformly-spaced, tubular flow passages extending axially through the structure in parallel relationship parallel to the rotational axis of the transferrer. The surfaces of the flow passages exposed to air flow are coated with an aqueous coating solution containing a water-soluble hygroscropic material, such as lithium chloride, and a sufficient amount of a water-soluble wetting agent to provide a continuous film of the coating solution on these surfaces.

대표청구항 ▼

A rotatable heat exchanger wheel comprising a cylindrical, open-ended casing supported for rotation, a plurality of wedge-shaped segments of heat exchange medium disposed in and carried by said casing, said heat exchange medium comprising alternate planar and corrugated layers of a thin, fiber-reinf

A rotatable heat exchanger wheel comprising a cylindrical, open-ended casing supported for rotation, a plurality of wedge-shaped segments of heat exchange medium disposed in and carried by said casing, said heat exchange medium comprising alternate planar and corrugated layers of a thin, fiber-reinforced, heat-curable, organic resinous material containing at least 50 weight % of the organic resin and bonded together at their points of contact to form a self-supporting, water-proof structure including uniformly-spaced, tubular flow passages extending axially from one side of the structure to the other in parallel relationship to each other and parallel to the rotational axis of said casing, the portions of said structure defining said flow passages being substantially non-absorbent relative to water, said fiber-reinforced, resinous material comprising sheets of a fibrous material substantially saturated with a phenolic or a melamine resin; and a film coating the surface of said flow passages exposed to air flow, said film being applied as an aqueous coating solution containing about 15-20 weight % of lithium chloride and a sufficient amount of a water-soluble, wetting agent to provide a continuous film of said solution on said surfaces.