Efficient and energy-saving boiler barrel type fire tube steam boiler and using method thereof

Abstract

The invention relates to an efficient and energy-saving boiler barrel type fire tube steam boiler and a using method thereof. The efficient and energy-saving boiler barrel type fire tube steam boileris provided with a support or a base and a boiler body, wherein the boiler body is provided with a gasification combustion chamber and a boiler barrel type heat exchange assembly; the boiler barrel type heat exchange assembly is provided with an upper boiler barrel and a lower boiler barrel; the upper boiler barrel is provided with a steam outlet; the lower boiler barrel communicates with the upper boiler barrel through a steam delivering tube; multiple rows of vertical tubular upper and lower fire paths with openings in the tops and the bottoms and vertical tubular upper and lower flues withopenings in the tops and the bottoms are arranged in the lower boiler barrel; the fire paths and the flues sequentially communicate with one another in the front-back direction through fire distributing boxes and smoke distributing boxes; the outlet of the upper flue at the tail end is provided with a tail gas discharge opening, an induced draft fan and a dust collector; the lower opening of the upper fire path at the foremost end communicates with the gasification combustion chamber; fire circulates in tubes of the fire paths and the flues; an internal water system is arranged on the outsidesof the tubes; a water layer is arranged in the outer wall of the gasification combustion chamber; and the water layer and water layers on the outsides of the fire distributing boxes and the smoke distributing boxes form an external water system. The steam boiler has the advantages of simple structure, small occupation area, high degree of automation, safe and reliable running, convenience in operation and use, low production and maintenance cost, energy conservation and environmental protection, capability of being popularized and used extensively and the like.

Description

technical field [0001] The invention relates to the technical field of boiler heating, in particular to a high-efficiency and energy-saving drum type fire-tube steam boiler and a use method thereof. Background technique [0002] As we all know, many industries need to use steam in the production process, especially in recent years, with the large demand for steam, the application of steam boilers has become more and more extensive. Common steam boilers include four types, namely: [0003] (1) Coal-fired boilers; coal-fired boilers are the most traditional. Although coal-fired boilers are now facing a situation of being phased out, we cannot deny the important role played by coal-fired boilers in the past. At present, coal-fired boilers are still the most widely used, especially in some economically underdeveloped areas. For coal-fired boilers, the cost of use is low, and it is suitable for areas with relatively backward economic development, but its biggest disadvantage is...

AI Technical Summary

Problems solved by technology

Although it has many advantages, it is not difficult to find when designing and using: the initial investment cost is relatively high, and it also requires a lot of space during use

[0005] (3) Oil-fired boilers; oil-fired boilers have been widely used in recent years. During use, fuel oil burns rapidly, and there is no coking problem in the furnace. The heat load of the furnace volume is relatively high, which can be nearly double that of coal-fired boilers; but Due to the relatively high price of fuel, the economic burden for general enterprises is also relatively increased. In addition, the transportation and storage of fuel oil are highly dangerous and prone to accidents

[0006] (4) Gas-fired boilers Since the fuel of gas-fired boilers is natural gas, high efficiency and environmental protection have become the biggest advantages of gas-fired boilers. However, the use of gas-fired boilers is conditionally restricted. Where there is no gas, it is impossible to use natural gas

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