Boiler heating chamber

Abstract

The invention provides a boiler heating chamber. A smoke inlet and a smoke outlet are formed in the heating chamber. A water storage chamber is arranged in the heating chamber. A heat exchange device is arranged in the water storage chamber. The heat exchange device comprises N levels of heat exchange pipelines, wherein N is larger than or equal to 1. One end of the first-level heat exchange pipeline is communicated with the smoke inlet. The other end of the first-level heat exchange pipeline is communicated with one end of the second-level heat exchange pipeline through a first-level collection cavity. The other end of the second-level heat exchange pipeline is communicated with one end of the third-level heat exchange pipeline through a second-level collection cavity. In this way, the other end of the (N-1)th-level heat exchange pipeline is communicated with one end of the Nth-level heat exchange pipeline through an (N-1)th-level collection cavity. The other end of the Nth-level heat exchange pipeline is communicated with the smoke outlet. The first-level collection cavity and / or all the other collection cavities or part of the collection cavities are respectively provided with an ash removing opening which is communicated with a shell of the heating chamber. The heat exchange device comprises the N levels of heat exchange pipelines, and therefore the heat exchange area can be enlarged, and heat exchange time can be prolonged; the ash removing openings are formed in the collection cavities, and fuel ash can be conveniently removed.

Description

technical field [0001] The invention relates to the technical field of boilers, in particular to a boiler heating chamber. Background technique [0002] As a kind of energy conversion equipment, the boiler generally converts heat energy through the heating chamber of the boiler, and outputs steam and high-temperature water with certain heat energy to the outside. It is an important equipment for hot water or high-temperature steam, and the heating chamber of the boiler The heat exchange efficiency determines key performances such as the heating rate and energy consumption of the boiler. The high-temperature flue gas generated by fuel combustion enters the heating chamber through the flue gas channel, and the high-temperature gas in the flue gas channel exchanges heat with the water in the heat exchange chamber to heat the water, and finally the flue gas in the flue gas channel is discharged through the smoke outlet. [0003] In the boilers currently used, the heat generated...

AI Technical Summary

Problems solved by technology

Although the heat of the flue gas has a certain heating effect on the water around the flue gas channel when the flue gas runs along the flue gas channel, most of the heat is still It is too late to exchange heat with water and be discharged through the smoke outlet, so the high-temperature flue gas in the flue gas channel in the heating chamber of the existing boiler cannot fully contact with the water in the heating chamber, resulting in low heat transfer efficiency and slow heating rate of the boiler , the defect of high fuel consumption, using biomass pellets as boiler fuel, the high-temperature flue gas generated by the combustion of biomass pellets contains a large amount of ash, if the ash in the heat exchange pipe is not cleaned in time, it will cause heat insulation and blockage The side effects of the heat exchange pipes, so the convenience of cleaning the ash in the flue gas heat exchange pipes has become a key factor to improve the heat exchange efficiency of the boiler heating chamber

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