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Gas forced circulation waste heat boiler

A forced circulation, waste heat boiler technology, applied in lighting and heating equipment, steam generation methods, steam generation and other directions, can solve the problems of small contact area of ​​the riser, unsatisfactory furnace insulation effect, unsatisfactory heat absorption, etc. Heat recovery rate, shorten the contact distance, and realize the effect of recovery

Active Publication Date: 2016-11-30
JIANGSU GREENLEAVES BOILER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a gas-fired forced circulation waste heat boiler to solve the problems in the prior art that the heat absorption is relatively unsatisfactory due to the small surface contact area of ​​the riser tube, and the heat preservation effect of the furnace body is not ideal.

Method used

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  • Gas forced circulation waste heat boiler
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Effect test

Embodiment 1

[0016] A gas forced circulation waste heat boiler, such as figure 1 , including furnace body 1, steam drum 2, circulation pump 11, gas channel 3, heating surface assembly, downcomer 7, steam drum 2 and gas channel 3 are located in furnace body 1, and steam drum 2 is located in the gas channel 3 On the side, the heating surface assembly is respectively provided with a water inlet pipe and a steam outlet, and the steam drum 2 is provided with a steam-water separator. In the gas channel 3, the heating surface assembly is connected to the inlet of the steam-water separator through a pipeline, such as figure 2 , the heating surface assembly includes a tube group, a left header 5, and a right header 6. The tube group includes a number of water pipes 4, and the two ends of the water pipe 4 are respectively connected to the left header 5 and the right header 6. The outer surface of the water pipe 4 is provided with a honeycomb structure formed by several grooves, and the furnace bod...

Embodiment 2

[0020] The structure of the second embodiment is basically the same as that of the first embodiment. The difference between the second embodiment and the first embodiment is that the water pipe 4 and the water pipe 4 are also provided with a spiral thin steel strip.

Embodiment 3

[0022] The structure of the third embodiment is basically the same as that of the first embodiment, and the difference between the third embodiment and the first embodiment is that: the water pipe 4 is also provided with a sawtooth piece, and the sawtooth piece is formed in a spiral shape.

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Abstract

The invention provides a fuel gas forced circulation waste heat boiler. The fuel gas forced circulation waste heat boiler comprises a boiler body, a steam drum, a circulating pump, a fuel gas channel, a heating surface assembly and a downcorner, wherein the heating surface assembly comprises a pipe group, a left header and a right header, the pipe group comprises a plurality of water pipes, the two ends of the water pipes are respectively communicated with the left header and the right header, the water pipes adopt horizontally coiled pipes, honeycomb structures formed by a plurality of grooves are arranged on the outer surfaces of the water pipes, a thermal insulating layer is arranged outside the boiler body, and the thermal insulating layer is sequentially provided with a rock wool layer, a glass fiber cloth layer, an aluminum silicate needled felt layer from the inside to the outside. Through arranging the honeycomb structures formed by the plurality of grooves on the outer surfaces of the water pipes, the contact area of the water pipes with fuel gas in the fuel gas channel can be increased, the exchange and utilization of waste heat are better facilitated, and the heat recovery rate can be effectively improved.

Description

technical field [0001] The invention relates to a gas forced circulation waste heat boiler. Background technique [0002] Waste heat boiler, as the name implies, refers to a boiler that uses waste heat in waste gas, waste or waste liquid in various industrial processes and the heat generated by the combustion of combustible substances to heat water to a certain temperature. Oil-fired boilers, gas-fired boilers, and coal-fired boilers with smoke boxes and flue waste heat recovery are also called waste heat boilers. Waste heat boilers can produce hot water or steam for use in other sections through waste heat recovery. [0003] However, in the existing waste heat boilers, due to the small surface contact area of ​​the water pipe, the heat absorption is relatively unsatisfactory, and the heat preservation effect of the furnace body is not ideal. The above problems should be considered and solved in the design and production process of waste heat boilers. Contents of the inve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F22B1/00
Inventor 周新良周昊
Owner JIANGSU GREENLEAVES BOILER
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