Novel three-barrel structure quick-fixing water tube boiler

Abstract

The invention relates to a novel water tube packaged boiler with three-drum structure, which entirely adopts a three-drum vertical 'D'-shaped arrangement structure and comprises a coal saver (3.1), a downcomer (3.2), a top-mounted drum (3.3), a riser tube (3.4) and a boiler main body (3.5). The boiler main body (3.5) includes an intermediate drum (3.6), a lower drum (3.8), a convection tube bundle (3.10), a furnace (3.11), an upper header (3.7) and a lower header (3.9), wherein the furnace (3.11) is surrounded by a left membrane wall (3.13), a right membrane wall (3.14), a front membrane wall (3.12) and a rear membrane wall (3.15), wherein the left membrane wall (3.13) and the right membrane wall (3.14) are directly communicated with the intermediate drum (3.6) and the lower drum (3.8); the front membrane wall and the rear membrane wall are communicated with each other through the intersection of the upper header and the lower header; the upper header is communicated with the intermediate drum; the lower header is communicated with the lower drum; and the top-mounted drum is communicated with the lower drum through the downcomer and is communicated with the intermediate drum through the riser tube. The boiler of the invention is produced in five parts and has positive pressure combustion to achieve packaged production of medium-pressure oil and gas burning boiler.

Description

technical field [0001] The invention relates to a boiler, in particular to a novel three-drum structure quick-install water tube boiler. It belongs to the technical field of power equipment. Background technique [0002] A boiler is a device that converts chemical energy into thermal energy. It is a device that uses various fuels such as coal, oil or gas to generate heat through combustion to generate steam or hot water. Oil and gas fuels are easy to transport and use, have high calorific value and are environmentally friendly, and have been vigorously promoted in the application of boiler fuel. Existing oil-fired gas boilers with boiler design pressure above medium pressure (boiler design pressure 3.82MPa) adopt bulk structure regardless of tonnage, and the main forms are attached figure 1 , attached figure 2 , they mainly have the following deficiencies: [0003] 1. The overall size is large, exceeding the road transportation limit, and all parts and components are s...

AI Technical Summary

Problems solved by technology

[0003] 1. The overall size is large, exceeding the road transportation limit, and all parts and components are shipped in loose parts, which cannot be assembled in the boiler factory;

[0004] 2. The boiler adopts a hanging structure, and the weight of the heating surface needs to be borne and transmitted by the steel frame, which consumes a lot of steel;

[0005] 3. The heating surface at the tail of the boiler is sealed by the furnace wall, and it needs to be equipped with an induced draft fan, which can only be burned with negative pressure or balanced ventilation. The air leakage coefficient is large, which reduces the efficiency of the boiler and consumes a lot of power.

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