Vertical smokeless steam boiler of Venturi tube effect

A Venturi tube and steam boiler technology, applied in steam boilers, steam generation, solid fuel combustion, etc., can solve problems such as coal-fired black smoke emissions, and achieve environmental protection, long service life, and good combustion effects

Inactive Publication Date: 2007-11-21
王树洲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a Venturi tube effect type pure smokeless vertical steam boiler, which has a reasonable structure, can solve the

Method used

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  • Vertical smokeless steam boiler of Venturi tube effect
  • Vertical smokeless steam boiler of Venturi tube effect
  • Vertical smokeless steam boiler of Venturi tube effect

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Example Embodiment

[0030] The present invention will be further explained in conjunction with the above-mentioned drawings.

[0031] Figure 3 shows the structure and aerodynamic principle of the venturi tube.

[0032] Inject airflow with a certain pressure and a certain flow rate from the entrance of the venturi tube. The airflow is gradually compressed from the inlet section a, through the contraction sections b and c. When it reaches the cylindrical throat d, the density is the maximum, and the flow velocity also reaches the maximum. The airflow g is not jetted upwards through the throat in a cylindrical shape, but clings to the inner cavity wall of the scattering cone e in the form of a cone, and diffuses and jets upwards in a hollow trumpet shape. This is the aerodynamic "leeward surface adsorption effect of the venturi" ". How did this phenomenon come about? This is because the airflow is compressed and accelerated when it passes through the cylindrical throat d. At the first moment it is jette...

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Abstract

This invention relates to a venturi smoke-free vertical steam boiler, a thermal equipment, including shell, curved pipes and combustion devices, the outside bending pipes is placed in the box, between the introvert pipes form a hot gas cavity, beneath the cavity is the combustion chamber, beneath the combustion chamber is the grate, beneath the grate is the ash chamber, on the combustion chamber has stove door to coal, and on the ash chamber has a gray ash doors, ash chamber is equipped with a tuyere, on the top of combustion chamber has narrow high temperature gas export, above the export has a secondary combustion chamber, the cross section of the secondary combustion chamber is circular, the secondary combustion chamber has a secondary tuyere, on the top of the secondary combustion chamber has high temperature gas export, the high temperature gas export connect hot gas chamber. A rational structure, solve the problem of coal-smoke emission, carry out smokeless emission, high thermal efficiency, conservation of coal resources and the environment.

Description

technical field [0001] The invention relates to a Venturi tube effect type pure smokeless vertical steam boiler, which belongs to industrial thermal equipment. Background technique [0002] At present, vertical hand-fired steam boilers occupy a relatively large share in the market. The typical one is the LSG type vertical curved water tube boiler. The structure includes the shell, curved water pipes and combustion devices. The hot gas cavity is formed between the bent water pipes, the combustion furnace of the combustion device is located below the thermal gas cavity, the grate is located below the combustion furnace, and the ash chamber is located below the grate, and a coal charging furnace door is provided corresponding to the combustion furnace, which corresponds to the ash chamber There is an ash outlet, and the ash chamber is equipped with a combustion-supporting tuyere. The high-temperature flue gas rushing up from the combustion furnace enters the hot gas chamber to ...

Claims

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Application Information

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IPC IPC(8): F22B31/02F23B10/00F23B10/02
Inventor 王树洲
Owner 王树洲
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