Gas wall-hung boiler, hot water supply system and control method

Abstract

The invention relates to a gas wall-hung boiler, comprising: a heat exchanger, the heat exchanger includes a first passage and a second passage for exchanging heat with flue gas generated by combustion of gas, both the first passage and the second passage can make The fluid passes through and is not connected to each other; the first water inlet pipe and the first water outlet pipe, and the first water inlet pipe and the first water outlet pipe respectively communicate with the two ends of the first passage to form the first heating unit; the second water inlet pipe and the first water outlet pipe respectively communicate with each other. The second water outlet pipe, the second water inlet pipe and the second water outlet pipe respectively communicate with the two ends of the second path to form a second heating unit; the first heating unit and the second heating unit can be independently or simultaneously output heat source. The gas wall-hung boiler can provide hot water for heating and daily use at the same time, avoiding the problems of insufficient heat exchange and temperature drop in the heating space due to excessive hot water consumption for daily use.

Description

technical field [0001] The invention relates to the technical field of wall-hung boilers, in particular to a gas-fired wall-hung boiler, a hot water supply system and a control method. Background technique [0002] Conventional gas wall-hung boilers use gas as the main energy source, and usually have the dual function of providing heating hot water and domestic hot water. Usually, the gas wall-hung boiler can switch the working mode according to the season. For example, in summer mode, the heating function of the gas wall-hung boiler is turned off, and it is only used to provide users with domestic hot water; in winter mode, the heating function of the gas wall-hung boiler and the function of providing domestic hot water are both turned on to provide heating and domestic hot water. domestic water needs. [0003] However, in winter mode, the commonly used gas wall-hung boilers are all set to give priority to domestic hot water, that is, when the user needs domestic water, t...

AI Technical Summary

Problems solved by technology

When the user turns on the domestic water function for too long or too frequently, the gas wall-hung boiler cannot take care of both heating and domestic water needs, which will easily lead to insufficient indoor heating heat and a drop in room temperature, bringing users an uncomfortable experience

Images