Alcohol-based fuel steam boiler

Abstract

The invention provides an alcohol-based fuel steam boiler. The alcohol-based fuel steam boiler comprises a barrel, a hearth, at least one set of middle heating tank and a tail flue. The hearth, the middle heating tanks and the tail flue are arranged in the barrel. The hearth is arranged at the lower portion of the barrel. One or more sets of burners are arranged in the hearth. The middle heating tanks are located above the hearth. The tail flue is arranged on the side edge of the barrel. The hearth is communicated with the middle heating tanks through smoke tubes. The middle heating tanks are communicated with the tail flue in the mode that a pipeline penetrates through the wall of the barrel. By means of the alcohol-based fuel steam boiler, water of a boiler body can be reduced to the maximum extent, the heating area is enlarged at the same time, high burning efficiency can be obtained and converted to the efficient heat utilization rate, the efficient and energy-saving operation of the pure-alcohol-based fuel steam boiler is achieved, the cost is lowered for users, environment is protected, and the purposes of saving energy and reducing consumption are achieved.

Description

technical field [0001] The invention relates to a boiler, in particular to a boiler heated by alcohol-based fuel. Background technique [0002] Traditional steam boilers use wood, coal, diesel, and natural gas as fuel for heating. my country is the country that produces and uses the most coal-fired industrial boilers in the world. However, an important problem of coal-fired industrial boilers is the serious pollution to the environment. The main reasons for the pollution problems of industrial boilers are as follows: first, the technology is generally backward, and the grate and auxiliary equipment are generally poor; second, the operation efficiency of industrial boilers is low; third, the quality of coal combustion generally does not match the boiler design. Based on the current domestic industrial boilers' annual standard coal consumption of about 380 million tons, my country's coal-fired industrial boilers emit about 6.4 million tons of SO 2 , 2.67 billion tons of CO ...

AI Technical Summary

Problems solved by technology

[0004] Although alcohol-based fuel is a good alternative clean energy, the current domestic steam boiler field has not promoted the use of alcohol-based fuel to replace diesel and liquefied petroleum gas for boiler heating. The main reasons are: 1. Alcohol-based fuel is used The burner is heated by injection combustion, the mixing ratio of oxygen supply and fuel is unreasonable, and the environment for the best decomposition and combustion of alcohols is not obtained, the combustion of alcohol-based fuels is incomplete, resulting in a short flame length and a small effective heating area of ​​the boiler, which cannot be achieved Heating requirements and energy-saving effects required by the boiler; 2. The amount of water installed in the boiler body is large (taking a steam boiler with a general rated evaporation capacity of 1t / h, a working pressure of 0.7Mpa, and a rated temperature of 170°C as an example, the amount of water in the body about 2.3 tons), it takes a long time to start and stop the furnace, and the heat consumed to maintain a steady state increases accordingly

Images