Full premixed gas wall-hanging stove

Abstract

The invention discloses a full premixed gas wall-hanging stove which comprises a tap water inlet pipeline, a water inlet temperature sensor, a domestic water cold water inlet joint assembly, a boosterpump, a controller, a water outlet temperature sensor, a water flow sensor, a plate heat exchanger, a domestic water hot water outlet joint assembly, a domestic water valve, a one-way valve, a full premixed combustion condensation type heat exchanger, a hot medium water drainage pipe, an electric control three-way valve, a heating cooling fin assembly, a hot medium water circulating pump and a hot medium water backflow pipe, wherein a domestic water circulating loop is formed by the tap water inlet pipeline, the domestic water cold water inlet joint assembly, the booster pump, the water flowsensor, the plate heat exchanger, the domestic water hot water outlet joint assembly and the one-way valve. Due to the fact that domestic water in the domestic water circulating loop is hot water allthe time, when domestic hot water is used, the domestic water valve is opened, hot water can be output instantly, and the daily water quantity can be guaranteed under the action of the booster pump.

Description

Technical field [0001] The invention relates to a wall-hung boiler, in particular to a fully premixed gas wall-hung boiler. Background technique [0002] The fully premixed gas wall-hung boiler means that the combustion condensing heat exchanger in it is a fully premixed combustion condensing heat exchanger. For example, our company applied for and published a patent document with the publication number 107044786A in 2017. The premixed combustion condensing heat exchanger has the following advantages: due to the addition of an insulating plate in the sealed cylinder, it can prevent the fire in the burner from damaging the lower part of the heat exchanger (condensing rear cover); due to the addition of the fixed plate The spiral fixing piece is convenient for fixing in the spiral coil; because the heat insulation plate and the fixed plate are connected in a detachable manner, the heat insulation plate can be easily replaced; due to the addition of a flexible plate between the heat...

AI Technical Summary

Problems solved by technology

[0004] General gas wall-hung boilers still have such shortcomings. There is a distance from the wall-hung boiler to the valve for using domestic hot water. The water in the water pipe between the hot water valve and the valve is low-temperature cold water. Only when the cold water in the water pipe between the wall-hung boiler and the valve is drained can the hot water flow out for use. It takes a certain amount of time to drain a certain amount of cold water, so it takes a certain amount of time to waste water

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