High-efficiency energy-saving biomass boiler system

Abstract

The invention provides a high-efficiency energy-saving biomass boiler system which comprises a boiler body, a feeding system, a fire grate, a discharging device, a smoke discharging opening, a primary air inlet chamber, a secondary air inlet pipe and an air inlet chamber. A combustion chamber and a water vapor system placed above the combustion chamber are arranged in the boiler body. The feeding system is connected with the boiler body, so that biomass forming fuel is sent into the combustion chamber. The fire grate and the discharging device are placed at the bottom of the combustion chamber. The smoke discharging opening is communicated with the combustion chamber and penetrates through the water vapor system. The primary air inlet chamber is arranged below the fire grate. The secondary air inlet pipe and the air inlet chamber are arranged above the fire grate. Hot smoke discharged from the smoke discharging opening is recycled through a smoke discharging pipe and then passes through a water preheater and a secondary air preheater, wherein an outlet of the secondary air preheater is connected with a secondary air inlet chamber of the combustion chamber, inlet air is heated, and the water preheater is connected with a water inlet of a boiler, so that inlet water has certain temperature. According to the high-efficiency energy-saving biomass boiler system, burning is complete, boiler operation cost is low, feeding is convenient, heat using rate after biomass forming material burning releasing is improved, and steam production amount can be guaranteed by achieving automatic control over parameters.

Description

technical field [0001] The invention relates to a high-efficiency and energy-saving biomass boiler system, which belongs to the technical field of boilers. Background technique [0002] Biomass briquette fuel is a renewable energy source. Biomass combustion technology is undoubtedly suitable for my country's energy development needs. Biomass boilers have received more and more attention and research and development. [0003] In the existing technology, in order to utilize biomass energy more effectively, the combustion technology that makes full use of biomass briquette fuel has been widely adopted. Biomass briquette fuel has gradually replaced coal, diesel, natural gas, etc. as the preferred fuel for boiler combustion now. The combustion method of biomass briquette fuel is qualitatively different from other energy sources such as coal, diesel, natural gas, etc. Therefore, there are great differences in boiler feed, boiler structure design and combustion design. In addition...

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Problems solved by technology

[0003] In the existing technology, in order to use biomass energy more effectively, the combustion technology that fully utilizes biomass briquettes has been widely used. Biomass briquettes have gradually replaced coal, diesel, natural gas, etc. as the preferred fuel for boiler combustion. The combustion method of biomass briquette fuel is qualitatively different from other energy sources such as coal, diesel, natural gas, etc. Therefore, there are great differences in boiler feed, boiler structure design, and combustion design.

In addition, some boilers use the means of air intake to increase the amount of oxygen intake during the combustion process of biomass briquettes and improve the efficiency of biomass combustion. rate is not high

In addition, the hot flue gas discharged through the exhaust port is often directly discharged into the air after collecting dust, and the remaining heat cannot be effectively utilized, resulting in a waste of energy

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