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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, etc.

Inactive Publication Date: 2013-04-17
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] Embodiments of the present invention are further described below in conjunction with the accompanying 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 pipe 17, an overhead steam drum 27, a smoke exhaust pipe 28, and a chimney connected to the smoke exhaust pipe 28 1. A group of outer layer convection tubes 24 and inner folded convection tubes 18 are formed. A slag cleaning furnace door 10 is provided on the side wall of the furnace foot ring 15, and a heat insulation layer 23 and a mixing layer are built on the inner wall of the furnace shell 20. The soil refractory layer 22 is equipped with a hot water wire pipe 25, a main steam wire pipe 29, a pressure gauge wire seat 2, a water level gauge wire seat 3 and a water seal pipe 4 on the top steam drum 27. Water inlet pipe 9 and blowdown pipe 16 are installed on 17, and the bottom end of one group of outer layer conve...

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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, which belongs to the technical field of boiler manufacturing. Background technique: [0002] As far as the basic energy structure of our country is concerned, coal occupies an extremely important position, which is determined by our country's rich coal resources. At present, my country has become one of the countries with the largest coal production and consumption in the world, and it is also the country with the largest production and use of coal-fired boilers. In particular, the current vertical coal-fired steam-water dual-purpose boiler has the outstanding advantages of simple structure, low manufacturing cost, small installation area, convenient operation and low operating cost. It can output hot water, boiling water and steam conveniently and quickly. For use, favored by users. There is a huge market demand in the vast cities ...

Claims

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Application Information

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