Energy-saving and environment-friendly heating furnace capable of generating steam in spiral pipe

Abstract

The invention discloses an energy-saving and environment-friendly heating furnace capable of generating steam in a spiral pipe. The energy-saving and environment-friendly heating furnace comprises a containing cavity and a water storing cavity, and the water storing cavity is arranged at the lower end of the interior of a furnace body; the spiral pipe is arranged in a water filling pipe, a rotation shaft is arranged in the spiral pipe, and stirring rods are distributed on the rotation shaft in an array mode; a first fixing pipe is connected to the lower end of the spiral pipe, the right side of the first fixing pipe communicates with a control pipe, a control valve is arranged on the control pipe, the upper end of the control pipe is connected to a waste heat recycling pipe through a connecting pipe, and a condensate water inlet pipe is inserted into the waste heat recycling pipe; and a partition plate is arranged between the containing cavity and the water storing cavity, and a steamguiding cover is arranged on the left side of the lower end of the partition plate. According to the energy-saving and environment-friendly heating furnace capable of generating the steam in the spiral pipe, by adopting the spiral structure, the flame burning time is effectively prolonged, the fire source and fuel gas contact area is effectively increased, burning is more sufficient, the heat dissipation area is increased, and the heat transfer efficiency is high; and through stirring, the water heating rate is increased, the evaporation efficiency is high, and waste heat of exhaust gas generated after burning can be reutilized.

Description

technical field [0001] The invention relates to an energy-saving and environment-friendly heating furnace, in particular to an energy-saving and environment-friendly heating furnace in which steam is generated by a spiral tube. Background technique [0002] Coal-fired heating furnaces are heating boilers that use coal as the main fuel. They have the following defects: 1) Not environmentally friendly, insufficient combustion, black smoke from the furnace, and a large amount of tar generated, resulting in large emissions of exhaust gas during combustion, which affects the environment. Serious pollution; 2) It is unsafe, the added fuel and coal ash will block the oxygen supply channel, so that the fuel is not fully burned and easily produces carbon monoxide, causing gas poisoning; 3) The heating furnace is mainly operated manually, and it needs to be added in time when using Coal fuel is used to prevent the fire from going out; 4) The heating furnace takes a long time to ignite...

AI Technical Summary

Problems solved by technology

[0002] Coal-fired heating furnaces are heating boilers that use coal as the main fuel. They have the following defects: 1) Not environmentally friendly, insufficient combustion, black smoke from the furnace, and a large amount of tar generated, resulting in large emissions of exhaust gas during combustion, which affects the environment. Serious pollution; 2) It is unsafe, the added fuel and coal ash will block the oxygen supply channel, so that the fuel is not fully burned and easily produces carbon monoxide, causing gas poisoning; 3) The heating furnace is mainly operated manually, and it needs to be added in time when using Coal fuel is used to prevent the fire from going out; 4) The heating furnace takes a long time to ignite, and the heating water temperature rises slowly; 5) The inner tank of the boiler is mostly connected by several steel pipes as the heat absorbing element, the heat absorbing area is small, and the thermal efficiency is only 35-50 %

In addition, there are some small steam generating equipment, the heat-absorbing elements of the liner are thin, easy to break under the high temperature of the flame and the erosion of water, and the service life is short. With the continuation of time, the scale becomes thicker and thicker, and cannot be cleaned, resulting in a gradual decrease in heat absorption efficiency until it is scrapped.

[0003] At present, the steam heating furnaces on the market have small contact area between fire source and gas, insufficient combustion, high heat transfer efficiency, and waste gas with waste heat after combustion is not used

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