Air intake noise reduction structure for gas water heater

Abstract

The invention relates to an air intake noise reduction structure for a gas water heater. The air intake noise reduction structure is characterized by comprising an outer pipe and an inner pipe which are connected in a sleeving manner. A gap between the outer pipe and the inner pipe forms an air intake channel. An inner end opening of the inner pipe is connected with an exhaust opening of an air collection cover of the water heater. An outer end opening of the inner pipe is connected with an exhaust pipeline. A first end opening of the outer pipe is connected with an air inlet of the water heater. A second end opening of the outer pipe communicates with the ambient atmosphere, a filtering screen is arranged on the second end opening, and a noise absorbing layer is arranged on the inner wall of the outer pipe. According to the air intake noise reduction structure for the gas water heater, a box body of the water heater is of a closed structure, most of noise is controlled to be conveyed out through the air intake channel, the noise passes a denoising structure such as noise reduction cotton, the filtering screen and the like in the propagation process, the noise of a fan is lowered substantially, and the noise reduction effect is remarkable; and in addition, cold air is preheated through the temperature of wasted smoke, the combustion efficiency and thermal efficiency of gas are improved, and the energy saving effect and consumption reduction effect are good.

Description

technical field [0001] The invention relates to a gas water heater, in particular to an air inlet and noise reduction structure for a gas water heater. Background technique [0002] At present, consumers have higher and higher requirements for quietness of gas water heaters. The Chinese utility model patent with the authorized notification number CN205245564 discloses "A Gas Water Heater with Noise Reduction Function". There is an air intake hood installed on the air inlet, an air inlet is provided on the air intake hood, and a sound-absorbing baffle is installed in the air-intake hood. The outside air enters the air-intake hood from the air inlet and then flows along the sound-absorbing baffle to reach air intake. The utility model allows the air to enter the water heater box in a detour through the installation of the air intake cover and the baffle, which will cause the fan to have a large air intake resistance and insufficient air supply, which may cause poor air intak...

AI Technical Summary

Problems solved by technology

The utility model allows the air to enter the water heater box in a detour through the installation of the air intake cover and the baffle, which will cause the fan to have a large air intake resistance and insufficient air supply, which may cause poor air intake and reduce the wind resistance of the water heater; and when the air volume is insufficient In order to ensure stable combustion, it is necessary to increase the speed of the fan, so that the noise of the fan will increase instead.

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