Apparatus for the purification and recovery of the heat of the air leaving the heat treatment installations and other

摘要

1520400 Heat exchanger device ARTOS DR ING MEIER WINDHORST KG 23 Oct 1975 [24 Oct 1974] 43516/75 Heading F4S A heat exchanger device (for recovering heat from, cleaning, and condensing vaporous impurities from, spent air from drying and heat treatment plants such as those used in the textile industry comprises double-walled upstanding plates 13 having cavities 13A therein through which coolant water passes upwardly being supplied and removed via supply and removal ducts 16, 16A, flexible hoses 15 and nozzles 14. The air passes through an inlet 11, downwardly through spaces 13B between the double-walled plates 13 and through an outlet 12. The plates 13 have corrugations 18. The plates at their top parts are suspended and spaced by holders 17. Differently shaped holders 17 are provided at the lower parts of the plates. When it is required to clean the plates, a cleaning agent can be sprayed into the air stream through a pipe 20. Alternatively the plates may be brushed. Access for a brush is provided by removing a cover plate 22A of the heat exchanger casing 10, shifting seals 19 and then pushing the plates to the right one after the other so that an interspace results.