GAS BOILER WITH ONE PIPE AND TREE WATERWAYS

摘要

PURPOSE: A one-pipe and three-waterway gas boiler is provided to supply hot water for heat generation for a heat emitting device as well as hot water supply and heating functions. CONSTITUTION: A one-pipe and three-waterway gas boiler comprises branch pipes(8), a mixing temperature control valve(9), a second three-way valve(12), and ripples(11a,11b). The branch pipes are installed between the inlet of a circulating pump(4) and the outlet of a main heat exchanger(1). The opening degree of the mixing temperature control valve is controlled according to a control signal of a control unit(7). The second three-way valve transfers the mixed water through heating coils(2a,10a) of the third heat exchanger to the main heat exchanger. The second three-way valve is installed between one ripple, and the outlet of the circulating pump and the inlet of the main heat exchanger. One ripple is detachably connected to one side of a heating coil of a heat emitting device(10) and the other ripple is installed on the inlet of the main heat exchanger and the outlet of the circulating pump.