Novel gas heating water heater

Abstract

The invention provides a novel gas heating water heater. The novel gas heating water heater comprises a fan, a main heat exchanger, a hot water outlet pipe assembly, a domestic hot water temperature probe, a combustor subassembly, a water inlet pipe assembly, an electric three-way valve, a pressure gauge, a gas proportional valve, a water inlet valve assembly, a circulating water pump, a water pump connecting pipe assembly, a gas connecting pipe assembly, a bottom plate, a heating water outlet pipe assembly, a combustion chamber front cover plate, an expansion water tank, a smoke hood subassembly, a wind pressure switch, a heating water outlet, a domestic hot water outlet, a gas inlet, a tap water inlet and a heating water return port. Power-on self-test, automatic monitoring and automaticdiagnosis are achieved, the electric three-way valve is adopted, the structure is compact, space is saved, the weight is light, action is sensitive, the flow characteristic is accurate, automatic adjustment is achieved, the problem of smoke port blockage is not likely to happen, and heat efficiency is high.

Description

technical field [0001] The invention belongs to the field of heating water heaters, in particular to a novel gas heating water heater. Background technique [0002] As gas-fired heating water heaters enter thousands of households, the problem of using AC single-phase asynchronous fans to exhaust air has gradually emerged. Most of the exhaust pipes of gas heating water heaters have a simple structure, and the AC single-phase asynchronous fan used is a fixed speed, which always maintains a constant wind speed for exhaust. In actual use, for a gas-fired heating water heater installed in a high-pressure and changeable external environment, it is difficult to adapt to the harsh operating environment with the original AC single-phase asynchronous fan whose speed cannot be adjusted. The backflow of exhaust gas may even cause flames to overflow, and the adaptability of the product is not good. In addition, when in use, there is also the problem of insufficient or high secondary pr...

AI Technical Summary

Problems solved by technology

In actual use, for a gas-fired heating water heater installed in a high-pressure and changeable external environment, it is difficult to adapt to the harsh operating environment with the original AC single-phase asynchronous fan whose speed cannot be adjusted. The backflow of the exhaust gas, even causing the flame to spill out, the adaptability of the product is not good

In addition, when in use, there is also the problem of insufficient or high secondary pressure of the gas, which leads to the phenomenon of flame separation or yellow fire of the gas heating water heater, which affects the thermal efficiency of the gas heating water heater

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