Gas pipeline with reducing speed increase and anti-backflow blocking for gas water heater

Abstract

The invention discloses a gas pipeline with reducing speed increase and anti-backflow blocking for a gas water heater. The gas pipeline structurally comprises a combustion chamber, diffusion pipes, flow stopping structures, straight pipes, shrinkage pipes and nozzles. The two horizontal ends of each straight pipe are separately connected with the corresponding diffusion pipe and shrinkage pipe, and the diffusion pipes and the shrinkage pipes are of hollow structures. The height of the shrinkage pipes is smaller than that of the diffusion pipes, the tail ends of the diffusion pipes are locatedin the combustion chamber, and the nozzles are installed in the middle of the tail ends of the shrinkage pipes. The flow stopping structures are installed at the positions, close to the straight pipes, of the diffusion pipes. The diffusion pipes, the flow stopping structures and other structures cooperate together, the change of the diameter is used for increasing the speed of gas entering the combustion chamber, and the pipeline pressure being insufficient to transport the gas is avoided; and on the other hand, opening and closing of the flow stopping structures are automatically controlled according to the pressure difference, and the situation that the gas is unable to be transported due to backflow blocking the straight pipes is avoided.

Description

technical field [0001] The invention relates to the field of gas water heaters, in particular to a gas pipeline for a gas water heater with variable diameter, speed increase and anti-backflow blockage. Background technique [0002] In the process of using a gas water heater, it is more common to encounter that the water in the water heater is not hot after turning on the switch. When the equipment has no apparent damage or obvious failure, it is usually where the gas pipeline is located. The pressure of the gas pipeline is low or the gas pipeline is blocked. One end of the gas pipeline is connected to the The combustion chambers are connected, because there are a small amount of impurities in the gas, and these substances will flow back into the combustion pipe after combustion, causing the gas pipe to be blocked and unable to transport the gas, and the current gas pipes are all straight-through pipes, once the pressure of the gas is not enough, the speed of entry It becomes...

AI Technical Summary

Problems solved by technology

[0002] In the process of using a gas water heater, it is more common to encounter that the water in the water heater is not hot after turning on the switch. When the equipment has no apparent damage or obvious failure, it is usually where the gas pipeline is located. The pressure of the gas pipeline is low or the gas pipeline is blocked. One end of the gas pipeline is connected to the The combustion chambers are connected, because there are a small amount of impurities in the gas, and these substances will flow back into the combustion pipe after combustion, causing the gas pipe to be blocked and the gas cannot be transported. Moreover, the current gas pipes are straight-through pipes. Once the pressure of the gas is not enough, the speed of entry become extremely slow and cannot be heated immediately

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