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Vertical type inner container-free double grate boiler

A double grate, vertical technology, used in steam boilers, water tube steam boilers, steam generation and other directions

Inactive Publication Date: 2012-01-11
潘志明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, objectively speaking, it is difficult for the current vertical gallbladder boilers to work in the "reverse burning" mode.

Method used

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  • Vertical type inner container-free double grate boiler
  • Vertical type inner container-free double grate boiler
  • Vertical type inner container-free double grate boiler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The embodiments of the present invention are further described below in conjunction with the drawings:

[0020] A vertical gallbladderless double-grate boiler, which is mainly composed of a furnace foot ring 15, a furnace shell 20, an annular header tube 17, an overhead steam drum 27, a smoke exhaust pipe 28, and a chimney connected to the smoke exhaust pipe 28 1. A set of outer convection pipes 24 and inwardly folded convection pipes 18 are formed. A slag cleaning furnace door 10 is provided on the side wall of the furnace leg ring 15, and a heat insulation layer 23 and a mixture are built on the inner wall of the furnace shell 20. The clay refractory layer 22 is equipped with hot water wire tube 25, main steam wire tube 29, pressure gauge wire seat 2, water level gauge wire seat 3, and water seal tube 4 on the top steam drum 27. A water inlet pipe 9 and a sewage pipe 16 are installed on the 17; the bottom ends of a group of outer convection pipes 24 and inwardly folded c...

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Abstract

The invention provides a vertical type inner container-free double grate boiler, which mainly comprises a boiler shell body, a circular header pipe, an overhead drum, a group of external layer convection pipes and a group of infolding convection pipes, wherein a backfire furnace arch is constructed at bevels of the group of infolding convection pipes so that a backfire hearth is formed and a smoke upgoing circular cavity structure is formed by the backfire hearth and the external layer convection pipes; and a secondary combustion hearth is formed by an upper grate and a lower grate, which arearranged on the bottom of backfire hearth so that coal can be burnt sufficiently, the high temperature smoke can enter the smoke circular cavity, move upwards and exchange heat with a water body fully after passing the secondary combustion hearth smoothly and the invention aim of the backfire operation of the vertical type inner container-free boiler is realized. The vertical type inner container-free double grate boiler has the advantages of simple structure, low manufacture cost, scientific and reasonable combustion manner and high safety performance; the heat efficiency of the vertical type inner container-free boiler can be further improved and the pollution load of smoke extraction is reduced obviously; and the vertical type inner container-free double grate boiler is an ideal product of upgrading and optimizing the traditional vertical boiler.

Description

Technical field: [0001] The invention relates to coal-fired boiler equipment, in particular to a vertical gallbladderless double grate boiler, belonging to the technical field of boiler manufacturing. Background technique: [0002] As far as the basic structure of energy in our country is concerned, coal occupies an extremely important position, which is determined by our country's abundant coal resources. At present, my country has become one of the countries with the largest coal production and consumption in the world today, and it is also the country with the largest production and use of coal-fired boilers. In particular, the existing vertical coal-fired steam-water dual-purpose boiler has the outstanding advantages of simple structure, low production and manufacturing cost, small installation area, convenient operation and use, and low operating cost. It can output hot water, boiling water and steam conveniently and quickly. For use, it is favored by users. There is great...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B21/02F22B31/00
Inventor 潘志明
Owner 潘志明
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