Method for preventing coagulation in exhaust pipe of boiler
AssigneeKyungdong Navien Co., Ltd.
InventorTae Sik Min
Life of this patent
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Abstract
A method and an apparatus are provided for preventing coagulation in an exhaust pipe of a boiler is provided. The method includes operating the boiler and executing a combustion stroke, determining if an ambient air temperature measured by an ambient air temperature detecting sensor is equal to or lower than a first temperature, shifting a 3-way valve to a hot-water location if the measured ambient air temperature is equal to or lower than the first temperature, executing an extinction stroke of a burner if the temperature of space heating water reaches a second temperature, and operating a circulation pump and a blower to exchange heat in a heat exchanger and to discharge warm air through an exhaust pipe, thereby preventing coagulation in the exhaust pipe of the boiler.
Claims7
A method for preventing coagulation in an exhaust pipe of a boiler, the method comprising:
- operating the boiler to execute a combustion stroke;
- determining if an ambient air temperature measured by an ambient air temperature detecting sensor is equal to or lower than a first temperature;
- shifting a 3-way valve to a hot-water location if the measured ambient air temperature is equal to or lower than the first temperature;
- executing an extinction stroke of a burner if the temperature of space heating water reaches a second temperature;
- and
- operating a circulation pump and a blower to exchange heat in a heat exchanger to discharge warm air through an exhaust pipe.
A method for preventing coagulation in an exhaust pipe of a boiler, the method comprising:
- operating the boiler to execute a combustion stroke;
- determining if an ambient air temperature measured by an ambient air temperature detecting sensor is equal to or lower than a first temperature;
- shifting a 3-way valve to a hot-water location if the measured ambient air temperature is equal to or lower than the first temperature;
- executing an extinction stroke of a burner if the temperature of space heating water reaches a second temperature;
- and
- operating a circulation pump and a blower to exchange heat in a heat exchanger to discharge warm air through an exhaust pipe, wherein
- the space heating water is circulated through a closed circuit by operation of the circulation pump when the 3-way valve is shifted to the hot-water location, the closed circuit including the circulation pump, the heat exchanger, the 3-way valve, a hot water heat exchanger, and an expansion tank, and wherein
- the second temperature of the space heating water for executing the extinction stroke of the burner is a maximum temperature attainable in the closed circuit in a state where the 3-way valve is shifted to the hot-water location.
An apparatus for preventing coagulation in an exhaust pipe of a boiler, the apparatus comprising:
- a heat exchanger configured to transmit heat from a heating device to inflow water to supply heated water;
- a 3-way valve configured to shift to a hot-water location if a measured ambient air temperature is equal to or lower than a predetermined temperature;
- a circulation pump configured to circulate space heating water through a closed circuit when the 3-way valve is shifted to the hot-water location, the closed circuit including the circulation pump, the heat exchanger, the 3-way valve, a hot water heat exchanger, and an expansion tank;
- and
- the expansion tank configured to store the space heating water.
Dependencies are inferred from the claim text.