Horizontal fire tube boiler with tail provided with gas-water heat tube heat exchange tube

Abstract

The invention relates to a horizontal fire tube boiler with the tail provided with a gas-water heat tube heat exchange tube and belongs to the technical field of heating equipment. The horizontal fire tube boiler comprises a burner (1), a boiler body (2), a turning smoke chamber (3) and a coal economizer (4). The burner (1) is arranged at the front end of the boiler body (2), and the coal economizer (4) is arranged at the top of the boiler body (2). The horizontal fire tube boiler is characterized in that a gas-water heat tube heat exchanger (5) is arranged at the back of the coal economizer (4) and is also arranged at the top of the boiler body (2). According to the horizontal fire tube boiler, the flue gas temperature can be further reduced, even flue gas condensation is achieved, latent heat of vaporization is released, boiler efficiency is improved, the water inflow temperature of the boiler rises, and fuel consumption is reduced. Besides, the problem that blowing down overhauling occurs due to gas-water flow communication when a heat tube is damaged is solved. The horizontal fire tube boiler can be independently arranged based on existing boiler energy saving technology transformation.

Description

technical field [0001] The invention relates to a horizontal fire tube boiler. It belongs to the technical field of heating equipment. Background technique [0002] With the continuous development of the economy, the demand for international and domestic energy is rising rapidly, and the pressure to control pollution emissions is also increasing. How to use high-quality fuel more efficiently to achieve energy conservation and emission reduction has been highly valued by governments and all walks of life. In order to meet the requirements of sustainable development of the national economy and environmental protection, coal-based fuels have been gradually changed to oil and gas-based fuels. Oil and gas fuels are easy to transport and use. Under good combustion conditions, there is basically no environmental pollution and high calorific value, which makes oil and gas boilers realize automatic operation and high efficiency. After oil or gas is burned, the water vapor content i...

AI Technical Summary

Problems solved by technology

However, due to the influence of cold water temperature, flue gas often cannot reach below the dew point temperature, and as long as one of the heating surfaces of ordinary serpentine tubes is damaged, the furnace must be shut down for inspection and replacement.

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