Fuel gas distributor and fuel gas water heater

Abstract

The invention relates to a fuel gas distributor. The fuel gas distributor comprises at least three fuel gas cavities, fuel gas channels and a gas supply fuel gas pipeline. The fuel gas cavities are independently arranged, and the fuel gas channels are arranged in the mode of corresponding to the fuel gas cavities. A control valve is arranged between each fuel gas cavity and the corresponding fuelgas channel so as to control the connection and disconnection between the fuel gas cavity and the corresponding fuel gas channel. The gas supply fuel gas pipeline communicates with the fuel gas cavities so that when the fuel gas exists in the gas supply fuel gas pipeline, the fuel gas can exist in each fuel gas cavity. Ejectors are arranged on the fuel gas channels and the gas supply fuel gas pipeline. When the fuel gas distributor is applied to a fuel gas water heater, the broader heat load adjustment range can be provided, the lower heat load can be provided, the problem that the outlet water of a water heater is too hot in summer is solved, and the fuel gas and the water are saved. In addition, the temperature transition can be smooth within the heat load adjustment range of the fuel gas water heater, the user experience is greatly improved, and the problems that in the prior art, the constant temperature cannot be achieved, and the water temperature is suddenly high and suddenly low are solved.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to a gas distributor and a gas water heater. Background technique [0002] The gas distributor of existing gas water heater adopts two rows of fire design, and the scope of small load is very narrow, generally is two rows of fires or three rows of fires (that is, two or three nozzles are used simultaneously) for small fires, and six rows of fires for high fires. In summer, the temperature of the incoming water is already high. At this time, even if it is operated with a small fire and two rows or three rows (two or three nozzles are used at the same time), the outlet water temperature of the gas water heater will exceed the temperature set by the user. Seriously affect the user experience. In addition, in the prior art, the second and sixth fires are segmented. When the second and sixth fires are divided, when there is a large deviation in the composition or pressure of the g...

AI Technical Summary

Problems solved by technology

In summer, the temperature of the incoming water is already high. At this time, even if it is operated with a small fire and two rows or three rows (two or three nozzles are used at the same time), the outlet water temperature of the gas water heater will exceed the temperature set by the user. Seriously affect the user experience

In addition, in the prior art, the second and sixth fires are segmented. When the second and sixth fires are divided, when there is a large deviation in the composition or pressure of the gas source, it will cause the second and sixth fires to fail. In the overlapping area, the phenomenon reflected in the gas water heater is that when the user adjusts to a certain temperature, the temperature cannot be kept constant. The sectional valve of the gas distributor switches back and forth, and the water temperature fluctuates.

Images