BOILER HAVING INCREASED INDOOR HEATING EFFICIENCY AND ENABLING SIMULTANEOUS USE OF INDOOR HEATING AND HOT WATER

摘要

The boiler of the present invention which enables the simultaneous use of heating and hot water includes: an internal heating-water discharge line for heating water, which has a circulation path for heating water forcibly fed by an internal circulation pump between a tank and a main heat exchanger; a supply water discharge line for heating water, which has a circulation path for heating water forcibly fed by an external circulation pump and supplied and returned from/to the tank and an indoor heating mechanism; and a three-way valve provided on a second indoor heating water connecting pipe of the internal heating-water discharge line for heating water, which adjusts the degree to which it is opened according to the indoor heating load and the hot water load in order to supply hot water passing through the main heat exchanger to the tank and a hot-water heat exchanger. The internal heating-water discharge line of the boiler and the supply water discharge line for heating water are connected to the internal space of the tank disposed therebetween.

主权项

1. A boiler having enhanced heating efficiency and enabling simultaneous use of heating and hot water, the boiler including a tank (110) having a space provided therein for storing heating-water, a main heat exchanger (130) for heating heating-water using combustion heat of a burner (140) and a hot-water heat exchanger (180) for heating cold water into hot water through a heat exchange between heating-water heated in the main heat exchanger (130) and the cold water, comprising;
an internal heating-water piping line (160) composed of a first heating-water connecting pipe (160a) through which heating-water in the tank (110) is supplied to the main heat exchanger (130) and a second heating-water connecting pipe (160b) through which heating-water passed through the main heat exchanger (130) is supplied to the tank (110), thereby forming a heating-water circulation flow path for heating-water forcibly fed by an internal circulation pump (120) between the tank (110) and the main heat exchanger (130); a heating-water supply piping line (210) composed of a heating-water supply pipe (210a) for supplying heating-water in the tank (110) to heating equipment (230) and a heating-water return pipe (210b) for returning heating-water passed through the heating equipment (230) to the tank (110), thereby forming a heating-water circulation flow path for supplying and returning heating-water forcibly fed by an external circulation pump (220) between the tank (110) and the heating equipment (230); and a three way valve (170) provided on the second heating-water connecting pipe (160b), an opening rate thereof being adjusted depending on a heating load and hot water load to supply heating-water passed through the main heat exchanger (130) toward the tank (110) and the hot water exchanger (180), wherein the boiler internal water piping line (160) and the heating-water supply piping line (210) are connected to each other via the space in the tank (110).