JPS57187070A - Method for supplying gas - Google Patents

Abstract

PURPOSE: To reduce fuel cost in a continuous paint drying ad baking device having two ovens by circulating incombustible gas evaporated in an oven to an other oven that generating combustible solvent vapor.

CONSTITUTION: In the case where water soluble paint is used for a material 1 to be treated and combustible paint is used for a material 2, a suction pipe 38a and a circulation passage 43 are communicated through a three-way valve 42 and direct communication of the suction pipe 38 and a blower 37 is cut off. An automatic regulating valve 34b is then closed and atmosphere gas in the first oven A is sucked by a blower 33b through the suction pipe 38 and circulation passage 43. The gas is supplied to zones B₁WB₆ of the second oven B through an automatic air supply regulating valve 35b.... Evaporated gas of combustible solvent in the oven B is diluted and lowered in concentration by this way. At the same time, total quantity of atmosphere gas that needs incineratuon in an incinerator 15 can be reduced. In the case where combustible solvent paint is to be used for both of materials, both are led to the incinerator 15 and dilution is made by introduction of the air.

COPYRIGHT: (C)1982,JPO&Japio