Novel biomass anti-burning type water heating boiler

Abstract

The invention discloses a novel biomass anti-burning type water heating boiler. The novel biomass anti-burning type water heating boiler comprises a boiler body (1), wherein a boiler water interlayer (2) is arranged in the inner cavity of the boiler body (1); and the boiler water interlayer (2) is divided into an upper furnace cavity (4) and a lower furnace cavity (10) by using an upper fire grate (5). The novel biomass anti-burning type water heating boiler is characterized in that: a discharge flue (11) is formed in the side wall of the lower furnace cavity (10) and is communicated with the inner cavity of a boiling water tank (21); the inner cavity of the boiling water tank (21) is connected with the inner cavity, serving as a flue, of a hot water tank (17) through a communicating pipeline (14) and a boiling water tank discharge flue (23); and an exhaust port (28) formed at the upper end of the hot water tank (17) is connected to a chimney (30) through a pipeline and a draught fan (29). The novel biomass anti-burning type water heating boiler has the advantages of full combustion, high heating efficiency, energy conservation and environment friendliness. The boiler is designed to be an upper feeding mode, an air inlet and a material inlet are combined integrally, automatic feeding is realized under the action of the gravity of fuel and the draught fan, and manpower is saved. A flue gas purifier is arranged at the exhaust port of the boiler, so that tar and ash in flue gas can be removed effectively; therefore, the pollutant discharge is far below national standards.

Description

technical field [0001] The invention relates to a biomass hot water boiler, in particular to a novel biomass back-fired hot water boiler. Background technique [0002] At present, boilers that use biomass briquettes as fuel have not been popularized in the market, and the combustion technology of existing boilers is relatively backward, that is, the combustion air only enters from the furnace bridge on the bottom of the furnace, and the fuel and ash on the furnace bridge cover the furnace. On the bridge deck, the furnace bridge has poor ventilation and insufficient oxygen supply for fuel combustion. This kind of boiler has low thermal efficiency, serious ash hanging, and more flue gas emissions. Therefore, it is imperative to design the structure of a new type of biomass boiler and develop a new combustion technology. [0003] The reverse-fired hot water boiler is a commonly used hot water boiler at present, and the combination of the reverse-fired boiler and biomass fuel ...

AI Technical Summary

Problems solved by technology

[0004] Due to the unreasonable structure of the existing reverse burning furnace, the service life is short, and the operation is cumbersome and complicated, which affects the normal use of the hot water boiler

On the other hand, the flue gas discharged from the boiler chimney carries a large amount of heat energy, which is directly discharged into the atmosphere, which not only wastes energy, but also damages the earth's atmospheric environment.

The patent application of Chinese patent specification 200910015495.4 discloses a vertical reverse combustion coal-fired hot water boiler. The design of the boiler has a unique heat exchange water wall, which has a complex structure and high manufacturing cost. The water wall is seriously covered with ash and difficult to clean. , short service life, difficult boiler maintenance

The patent application of Chinese patent specification 200820174280.8 discloses a new type of reverse-fired hot water boiler. The reverse-fired furnace wall of this boiler design is composed of two arc-shaped plates. Frequent feeding is required during operation, and the operation is cumbersome

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