JPS5694143A - Boiler device using waste heat from combustion equipment - Google Patents

Abstract

PURPOSE:To enable supply of hot water under an effective utilization of surplus heat of a combustion equipment by a method wherein a water circulation pipe is spirally wound around outside on a concentric part of the burner, between the burner port of a combustion equipment such as a gas range etc. and the upper surface of the burner inside the combustion equipment. CONSTITUTION:Combustion equipment A such as a portable cooking stove range, or range etc. has a burner port 2 opened at the upper part 1 of the combustion equipment, a support 3 for pan etc., and a burner 4. In a clearance space between the upper end surface of the burner 4 and the burner opening 2 in the combustion equipment A is arranged a boiler device B having the inner and outer circulation pipes 5, 6 on a concentric part with the burner 4. The inner circulation pipe 5 is positioned with a specified clearance at its upper and lower parts, and fins 7 are arranged at the outer circumference of two pipes 5a communicated with each other by a communication pipe 8. The outer circulation pipe 11 is helically wound, and supply of water is performed at the water supply port for the pipe 11, the water is heated while it is flowed through the pipes 11, 5a, 5, and then discharged through the hot water pipe 9.