Combustion chamber and wall-mounted gas boiler

Abstract

The invention discloses a combustion chamber and a wall-mounted gas boiler. The combustion chamber comprises a combustion chamber body which is internally provided with a combustion cavity; the combustion chamber body is provided with an air hole communicating with the combustion cavity; and the air hole further communicates with the exterior of the combustion chamber body. The combustion chamberbody is provided with the air hole communicating with the combustion cavity, and the air hole further communicates with the exterior of the combustion chamber body, so that the combustion chamber bodyis not sealed any more, air can enter the combustion chamber body through the air hole, the combustion chamber body is affected by draft of a fan under a small-load state, air entering only through an injection nozzle of a combustor originally is divided into a part of air which can enter the combustion cavity through the air hole and the other part of air which can enter through the injection nozzle of the combustor, and accordingly the amount of air passing through the combustor is reduced, the combustor is not easily away from the flame and does not flame out on the condition of ensuring the fuel amount under the small-load state, and combustion is more stable.

Description

technical field [0001] The invention relates to the technical field of gas wall-hung boilers, in particular to a combustion chamber and a gas wall-hung boiler. Background technique [0002] In the prior art, the combustion chamber of the gas wall-hung boiler is sealed except that burners and heat exchangers are installed on the top and bottom, and there is a small fire viewing hole around the combustion chamber. The purpose is to let the air basically enter from the side of the burner, fully participate in the combustion, and at the same time block the radiation of the flame; because the combustion chamber is in a sealed state, the air can only enter through the ejection port of the water-cooled burner, because the ejection port of the burner The opening is large, and the air ejected by the gas is more, especially under the condition of small load, because the combustion chamber is affected by the draft of the fan, and because the area of ​​the fire hole is large, the interv...

AI Technical Summary

Problems solved by technology

[0003] The invention discloses a combustion chamber and a gas-fired wall-hung boiler, which solves the problem in the prior art that the burner in the combustion chamber is relatively easy to leave the flame and extinguish under a small load state, resulting in unstable combustion

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