Heat exchange – Regenerator – Movable heat storage mass with enclosure
Patent
1984-07-03
1986-03-11
Davis, Jr., Albert W.
Heat exchange
Regenerator
Movable heat storage mass with enclosure
165 10, 165 54, 165 86, 55390, F28D 1900
Patent
active
045748721
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a heat exchanger apparatus which may suitably be applied to an air-conditioning ventilation system, for example, for heat exchanging ventilation such as supply of outdoor air and expelling of indoor air. More particularly, the invention pertains to a heat exchanger apparatus which includes a cylindrical-shaped heat exchanger formed by alternately laminating first and second elements in the circumferential direction of the cylindrical-shaped heat exchanger. A partition interposed between the first and second elements is constituted by a material having heat transfer properties. One of the elements is employed as a primary air flow passage, while the other element is employed as a secondary air flow passage. The primary and secondary air flow passages are periodically switched over from one to the other by rotating the cylindrical-shaped heat exchanger.
BACKGROUND ART
Examples of the plate-type heat exchanger element conventionally employed for an air-conditioning ventilation fan include a total heat exchanger element which employs as its partition a material having heat transfer properties and permeability to water vapor, such as paper, and a sensible heat exchanger element which employs as its partition a heat-conducting substance that is non-permeable to water vapor, such as a metal or plastic. These conventional heat exchanger elements are generally low in efficiency, since these heat exchanger elements effect a total heat exchange operation or sensible heat exchange operation through the partitions between a supply air flow and an exhaust air flow which continuously pass simultaneously and alternately through their respective layers defined by the partitions of the heat exchanger elements in their respective fixed directions.
On the other hand, in the case of a regenerative rotary type heat exchange operation making use of the accumulation of heat and moisture in a cylindrical-shaped heat exchanger, the cylindrical-shaped heat exchanger is generally required to rotate at a number of revolutions of about 15 r.p.m. since such heat exchanger has a small heat accumulation capacity. For this reason, noise is easily generated by the rotation of the cylindrical-shaped heat exchanger. Further, in the total heat exchange operation, the effective quantity of water vapor adsorbed by the elements constituting the cylindrical-shaped heat exchanger is disadvantageously reduced due to the influence on the cylindrical-shaped heat exchanger of the accumulated sensible heat, the heat of adsorption and the heat of desorption.
SUMMARY OF THE INVENTION
The present invention aims at obtaining a heat exchange efficiency higher than that of the prior art in such a manner that primary and secondary air flows which adjacently pass through their respective layers defined by heat-transfer partitions as constituent members of heat exchanger elements are periodically switched over from one to the other by rotating the cylindrical-shaped heat exchanger.
Further, in the case where a partition interposed between the adjacent elements constituting the cylindrical-shaped heat exchanger is non-permeable to water vapor and yet hygroscopic, it is possible to provide a completely novel and highly efficient heat exchanger apparatus.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a schematic illustration of a part of a cylindrical-shaped heat exchanger and the associated air flow inlet/outlet paths in accordance with one embodiment of the heat exchanger apparatus of the invention;
FIG. 2 is a detail view of a part of the heat exchanger shown in FIG. 1;
FIG. 3 is an illustration of elements constituting the heat exchanger shown in FIG. 1;
FIG. 4 is an illustration of another example of each of the elements shown in FIG. 3;
FIG. 5 is a schematic sectional view of the cylindrical-shaped heat exchanger in accordance with one embodiment of the invention;
FIG. 6 is a schematic illustration of an essential part of the heat exchanger shown in FIG. 5;
FIG. 7 is a schematic illustration of the appe
Aoki Akira
Kotera Takuro
Utagawa Toshio
Wakai Masao
Watanabe Kazufumi
Davis Jr. Albert W.
Matsushita Electric - Industrial Co., Ltd.
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