Gas stove

Abstract

The invention provides a gas stove. The gas stove comprises a burner assembly, a first-stage heat exchanger, a smoke absorbing assembly and a second-stage heat exchanger, wherein the first-stage heatexchanger is arranged in the burner assembly; the smoke absorbing assembly is connected to the burner assembly; the second-stage heat exchanger is arranged in the smoke absorbing assembly. The gas stove further comprises a water returning pipeline, a three-way valve, a heat supplying pipeline and a temperature detector; the water returning pipeline is correspondingly connected to a water inlet ofthe second-stage heat exchanger and a water inlet of the first-stage heat exchanger through the three-way valve; the temperature detector is used for detecting the water temperature of the water returning pipeline; and the controller is electrically connected to the temperature detector and the three-way valve. According to the technical scheme, the gas stove is capable of preventing smoke temperature from decreasing to be less than dew point temperature to generate a large number of condensate water through low-temperature in the water returning pipeline, and thus a smoke pipe is prevented from serious corrosion by excessive condensate water; and moreover, the potential risk caused by icing of the condensate water at an outlet of the smoke pipe can be solved.

Description

technical field [0001] The invention relates to the technical field of gas equipment, in particular to a gas furnace. Background technique [0002] In order to improve the thermal efficiency of the condensing gas wall-hung boiler, the high-temperature flue gas generated will be reused. By exchanging heat with the high-temperature flue gas through the return line, the heat of the high-temperature flue gas can be utilized. [0003] However, the above waste heat utilization method will reduce the temperature of the flue gas, and when the temperature of the flue gas is lower than the dew point temperature, the water vapor therein will condense into condensed water. The condensed water formed in the smoke tube will cause serious corrosion to the smoke tube. When the ambient temperature is low, the condensed water is also easy to freeze at the outlet of the smoke pipe, forming ice blades, and there is a safety hazard that the ice blades will fall when installed in high-rise buil...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a gas furnace to solve the technical problem in the prior art that the gas furnace tends to generate more condensed water when utilizing the waste heat of high-temperature flue gas

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