Energy-saving combustion heat supplying network optimizing system

Abstract

The invention discloses an energy-saving combustion heat supplying network optimizing system comprising a steam boiler, a biomass gasifier and a heat exchanging pipe network. A cold water pipeline is connected with a first heat exchanger through an outer clamping sleeve of the biomass gasifier. The first heat exchanger is connected with a flue gas exhausting pipe of the biomass gasifier. A heat exchanger is connected with the heat exchanging pipe network. The heat exchanging pipe network is connected with the steam boiler. The steam boiler is connected with a combustion device. The combustion device is connected with the biomass gasifier. The energy-saving combustion heat supplying network optimizing system has the following beneficial effects that combustion is conducted in a hearth, and biomass gas and coal powder are mixed and led into the hearth to conduct secondary combustion, so that fuel can fully combust to release heat with the highest value; air is heated through hearth radiation waste heat, and the fuel is fully preheated, so that improving of the gasification efficiency of biomass is facilitated; by adopting a novel funnel cap structure, the phenomenon that the fuel blocks an air hole is effectively prevented; and a steam pipe network is of a parallel structure replacing a series structure, so that the heat exchanging volume is reduced, cost is saved, and heat exchanging efficiency is improved.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of boiler combustion and pipe network optimization, in particular to an energy-saving combustion heating network optimization system that improves combustion efficiency and optimizes pipe networks. [0003] 【Background technique】 [0004] The existing boiler comprises a furnace, a fire grate arranged in the fire hearth and an air induction plate installed above the fire grate, and a conveyor belt and a hopper for inputting raw coal are arranged outside the furnace. After the raw coal is burned on the grate, the heat is first transported upwards under the guidance of the furnace arch. In such a structure, the raw coal is burned on the grate, the combustion temperature is relatively low, the combustion time is short, the raw coal is difficult to burn completely, the combustion efficiency is low and the nitrogen oxide content in the flue gas is high, causing serious pollution to the environment. [000...

AI Technical Summary

Problems solved by technology

However, the treatment process is complicated and the operating cost is too high

[0009] In addition, the existing steam pipe network performs heat exchange through series-connected heat exchangers, and the water is heated to nearly 300°C before entering the boiler. The volume ratio of the heat exchangers required in this system is large, and the heat exchange efficiency is not high

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