Fuel gas heating hot water furnace

Abstract

The invention discloses a fuel gas heating hot water furnace which comprises a shell. A heat exchanger, a first combustor and a coupler are arranged in the shell. The coupler is provided with a wateroutput pipe which is connected with the water input end of the heat exchanger. The water output pipe is provided with a small water pump. The water output end of the heat exchanger is connected with athree-way valve. A water outlet of the platy heat exchanger is connected with the water output pipe. A water heat exchange pipeline is arranged in the platy heat exchanger. A second water outlet of the three-way valve is connected with the coupler. The coupler is provided with a heating water outlet and a heating water return opening. According to the fuel gas heating furnace, due to arrangementof a combustor locating groove and a water groove in an expansion water tank, heat carried by smoke in the heating process of the hot water furnace can be absorbed fully, the heating furnace can be cooled in time, the heat can be utilized fully, and the energy source utilization rate is increased.

Description

technical field [0001] The invention relates to the technical field of heating equipment, and more specifically relates to a gas heating water heater. Background technique [0002] Gas heating water heaters, also known as "gas wall-mounted boilers", rely on natural gas to provide hot water and heating heat. They are dual-function machines for heating and domestic water. The gas heating water heater has all the functions of automatic power off, water off, and gas off, and its safety performance is also excellent. [0003] At present, the gas-fired heating water heater can transfer heat to the heat exchanger by burning gas, and make the cold water in the heat exchanger be heated into hot water for bathroom or heating. A large amount of smoke will be emitted during the heating process. The temperature of the flue gas can generally reach above 150°C, and the existing hot water heater directly discharges this part of the flue gas, resulting in a waste of heat from the flue gas...

AI Technical Summary

Problems solved by technology

[0003] At present, the gas-fired heating water heater can transfer heat to the heat exchanger by burning gas, and make the cold water in the heat exchanger be heated to become hot water for bathroom or heating. A large amount of smoke will be emitted during the heating process. The temperature of the flue gas can generally reach above 150°C, and the existing hot water heater directly discharges this part of the flue gas, resulting in a waste of heat from the flue gas. If it is used for a long time, it will inevitably affect the service life of the water heater, and it will also affect the indoor temperature

Images