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Large-sized natural circulation boiler with water pipe

A technology of natural circulation and water tube boilers, applied in water tube steam boilers, steam boilers, steam generation, etc., to achieve the effects of reducing water resistance and smoke resistance, saving steel and stabilizing thermal efficiency

Inactive Publication Date: 2009-11-18
王森
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this invention not only fundamentally solves the problem of natural circulation of large water tube boilers at present, but also has a significant effect on improving energy efficiency, reducing energy consumption and smoke emission

Method used

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  • Large-sized natural circulation boiler with water pipe
  • Large-sized natural circulation boiler with water pipe
  • Large-sized natural circulation boiler with water pipe

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Embodiment Construction

[0012] Below in conjunction with accompanying drawing, the present invention is described in detail

[0013] A large-scale natural circulation water tube boiler consists of a drum (16), a downcomer (21), side upper and lower headers (13), (4), a support hanger (38), an ejector pipe (60), ( 61) Composition, which is characterized in that the upper end of the roof pipe (47) is radially connected with the longitudinal center of both sides of the drum (16), and its lower end is connected with the top center of the upper side header (13) in a longitudinal and uniform manner; The upper end of the water-cooled wall tube (10) is in radial communication with the inner center of the upper side header (13), and its lower end is in radial communication with the inner center of the lower side header (4); the convection tube bundle (46) The upper end communicates with the outer center of the side upper header (13) in vertical and horizontal rows or fork rows, and its lower end communicates ...

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Abstract

A large natural circulation water tube boiler is widely used in the field of central heating. The invention is composed of a drum, vertical and horizontal headers, downcomers, ejector tubes, water-cooled walls, convection tube bundles, etc.; the furnace body has a self-contained structure that greatly reduces the steel frame support on the non-heating surface, greatly reduces the steel frame, and greatly reduces the natural circulation. The water circulation resistance in the furnace significantly reduces the power consumption of the circulating pump. The furnace body is self-dedusting, which facilitates the settlement and removal of dirt, greatly reduces the smoke and dirt on the heating surface, reduces the flow resistance and thermal resistance, and significantly reduces the power consumption of the induced draft fan. Operating efficiency and extended service life. The invention is a central heating boiler with simple manufacture, safe and reliable operation, convenient maintenance or overhaul, and remarkable energy saving, consumption reduction and emission reduction.

Description

technical field [0001] The invention relates to an industrial boiler, in particular to a large-scale layer-fired natural circulation hot water boiler for central heating. Background technique [0002] Most of the large water tube boilers currently on the market use forced circulation as the water circulation method in the furnace. Recently, although there is a boiler called the compound circulation method, it only has its advantages in power failure protection, but it is also in the category of forced circulation in essence. Disadvantages of forced circulation: First, it increases the resistance in the furnace and increases the power consumption of the circulating pump. Second, it greatly increases the number of sewage and exhaust points, which makes the operation and management complicated. Third, it is not good for power failure protection. Water causes boiler failure. Fourth, it is difficult to find and repair once a tube burst fault point occurs. Fifth, it is difficult t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F22B21/12F22B21/14
Inventor 王森
Owner 王森
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