Device for supplying heat by utilizing waste heat of low-temperature flue gas of boiler

Abstract

The invention discloses a device for supplying heat by utilizing waste heat of low-temperature flue gas of a boiler. The device comprises a smoke inlet pipe, a filter box, a boiler flue gas waste heat heating box, a water storage box, a water pump and a filter chimney, wherein the filter box is fixedly installed on the left side of the flue gas inlet pipe, and a flue gas exhaust pipe is fixedly connected to the left side of the filter box. According to the invention, the filter box and the flue gas pipeline are arranged, dust impurities in flue gas can be removed, the dust impurities are prevented from entering the curved flue gas pipeline to block the pipeline, the service life of the curved flue gas pipeline is prolonged, the maintenance amount is reduced, the maintenance cost is reduced, acid gas and dust in the flue gas can be efficiently absorbed through cooperation of the filter chimney, a first filter plate, a flue outlet hole and a second filter plate, the flue gas can be completely purified, harmful substances in the flue gas can be effectively removed, the flue gas is purified, the environment is protected, the energy-saving and environment-friendly benefits are remarkable, and good economic and social benefits are achieved.

Description

technical field [0001] The invention belongs to the technical field of boiler low-temperature flue gas waste heat heat supply, and in particular relates to a heat supply device utilizing boiler low-temperature flue gas waste heat. Background technique [0002] With the rapid development of my country's economy, the energy consumption is increasing day by day, and the air quality is also deteriorating day by day. Today, with the continuous improvement of energy saving, emission reduction and environmental protection requirements, natural gas, as a clean energy source with high calorific value, plays an important role in my country's urban energy consumption structure. The proportion continues to rise. To sum up, there is a large amount of sensible heat of flue gas and latent heat of water vapor in existing systems. In the process of smoking, it is impossible to filter the flue gas, which will cause environmental pollution. Contents of the invention [0003] Aiming at the pro...

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Problems solved by technology

[0003] Aiming at the problems existing in the prior art, the object of the present invention is to provide a heat supply device utilizing waste heat of boiler low-temperature flue gas, which has the advantages of easy operation and convenient use, and solves the problem that the existing flue gas directly brings a large amount of heat into the The ambient atmosphere not only wastes a lot of energy, reduces the thermal efficiency of the boiler, but also cannot filter the flue gas in the process of exhausting the flue gas, which will cause environmental pollution.

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