CONDENSATE DRAINAGE DEVICE FOR HEAT EXCHANGER

摘要

A condensate drainage enhancing device is provided for an evaporator. An integrally molded plastic part snap fits around the conventional lower manifold, with rails maintained in tight engagement with the front and rear edges of the refrigerant flow tubes. These interrupt the meniscus films of columns of retained water that would otherwise form and, which instead drains down ribs that depend from the rails.

主权项

1. For use with a cross flow heat exchanger of the type having a plurality of horizontally spaced, substantially parallel and substantially vertically oriented fluid flow tubes that contain an inner fluid flowing at a temperature sufficiently low to condense entrained water out of air flowing across and between said tubes, and in which the coplanar front and rear edges of said tubes enter a lower, substantially horizontal manifold with a tube to tube spacing effectively close enough to cause condensed water to become entrapped in condensate columns of characteristic height between said tube ends with a meniscus film presented to said front and rear tube edges, a condensate drainage enhancing device, comprising,
a generally horizontal rail engaged with one of the front and rear edges of said tubes at a location below the characteristic height of said condensate columns and contacting said meniscus films sufficiently closely to interrupt them, and, a plurality of generally vertical drainage ribs depending from said rail to provide a drainage path for condensed water out of said columns.