Single drum transverse type fuel gas and fuel oil corner tube boiler capable of achieving intake from below

Abstract

The invention provides a single drum transverse type fuel gas and fuel oil corner tube boiler capable of achieving intake from below. The boiler comprises a boiler body part and a combustion system part. A supporting structure is arranged in a boiler body and comprises a front descending pipe and a rear descending pipe which are arranged vertically. The two ends of the front descending pipe and the two ends of the rear descending pipe are connected with a side wall upper header and a side wall lower header which are arranged horizontally. A drum is arranged above one side of the boiler body. Awater inlet pipe is connected to the drum. The bottom of the drum is connected with a descending pipe communicating with the rear descending pipe. The bottom of the front descending pipe is connectedwith a front-and-back arch lower header. A front-and-back arch upper header communicating with the front-and-back arch lower header is arranged on the upper portion in the boiler body. The front-and-back arch upper header communicates with the drum through an upper water return pipe. According to the single drum transverse type fuel gas and fuel oil corner tube boiler capable of achieving intakefrom below, the fuel dwell time is long, flames can freely stretch, fuel can be fully combusted, the supporting structure is stable, and water circulation is safe.

Description

technical field [0001] The invention relates to the technical field of boilers, in particular, it can meet the emission requirements of the national boiler air pollutant emission standards, and solve the problems of insufficient fuel combustion, high nitrogen oxide emission concentration, and environmental pollution. Corner tube boiler. Background technique [0002] As we all know, the current gas-fired boilers generally have side air intake, the distance between the front and rear of the combustion chamber is short, the height of the combustion chamber is low, the volume of the combustion chamber is small, and the support structure and water circulation are not safe. This structure leads to short residence time of the flue gas and needs to turn to enter the upper part of the furnace, the flame cannot stretch freely, the gas combustion is uneven, the fuel combustion is insufficient, the flue gas filling degree of the combustion chamber is not high, the emission concentration...

AI Technical Summary

Problems solved by technology

This structure leads to short residence time of the flue gas and needs to turn to enter the upper part of the furnace, the flame cannot stretch freely, the gas combustion is uneven, the fuel combustion is insufficient, the flue gas filling degree of the combustion chamber is not high, the emission concentration of nitrogen oxides is high, and the flue gas is directly washed The rear wall of the furnace is severely worn, the maintenance rate is high, and the use cost is increased

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