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a gas boiler

A gas-fired boiler and furnace technology, applied in steam boilers, combustion air/fuel supply, non-flammable liquid/gas transportation, etc., can solve the problem that the boiler cannot meet the requirements

Active Publication Date: 2018-10-16
WUXI HUAGUANG BOILER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Many small CFB boilers need to be modified due to the influence of the environmental protection policy of the pot frame. Among them, converting CFB boilers to gas boilers is one of the transformation solutions, but CFB boilers have their own particularities, and the boilers to be transformed must be guaranteed The original performance parameters can be achieved, and some existing reformed boilers cannot meet the requirements

Method used

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Embodiment Construction

[0010] See figure 1 As shown, a gas-fired boiler includes an elongated furnace 1, a gas burner 2 is installed at the bottom of the furnace 1, a SOFA port 3 is opened on the side wall of the furnace 1, the upper end of the furnace 1 communicates with a connecting flue 4, and the connecting flue 4 includes a horizontal The flue 4-1, the vertical ascending flue 4-2 and the vertical descending flue 4-3, the vertical descending flue 4-3 is connected to the tail flue 9, and the tail flue 9 is equipped with high-temperature superheaters 5 arranged in sequence , two sets of low-temperature superheaters 6, two sets of economizers 7 and two sets of air preheaters 8, the economizers 7 are composed of spiral finned tubes, the lower set of air preheaters 8 are equipped with cold air inlets, and the upper set The group air preheater 8 is provided with a hot air outlet. The bottom of the horizontal flue 4-1 is a sealed horizontal bottom, and 10 in the figure is a desuperheater.

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Abstract

The invention relates to the technical field of boiler structures, in particular to a gas-fired boiler. After the gas-fired boiler is remolded, the performance parameters of an original CFB boiler are retained, and natural combustion of fuel gas is guaranteed. A gas burner is mounted at the bottom of a hearth. An SOFA opening is formed in the side wall of the hearth. The upper end of the hearth communicates with a connecting flue. The connecting flue comprises a horizontal flue body, a vertical ascending flue body and a vertical descending flue body. The vertical descending flue body communicates with a tail flue body. A high-temperature superheater, lower-temperature superheaters, economizers and two sets of air preheaters are sequentially mounted in the tail flue body. Each economizer is formed by spiral fin pipes. A cold air inlet is formed in the lower air preheater. A hot air outlet is formed in the upper air preheater.

Description

technical field [0001] The invention relates to the technical field of boiler structures, in particular to a gas boiler. Background technique [0002] Many small CFB boilers need to be modified due to the influence of the environmental protection policy of the pot frame. Among them, the transformation of CFB boilers into gas boilers is one of the transformation solutions, but CFB boilers have their own particularities, and it is necessary to ensure that the transformed boilers The original performance parameters can be achieved, and some existing reformed boilers cannot meet the requirements. Contents of the invention [0003] In order to solve the above problems, the present invention provides a gas-fired boiler, which retains the performance parameters of the original CFB boiler after transformation, and ensures normal combustion of gas. [0004] Its technical solution is as follows: a gas-fired boiler, which includes an elongated furnace, characterized in that a gas bu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F22B31/08F22G1/02F22G5/12F23L15/00
CPCF22B31/08F22G1/02F22G5/12F23L15/00F23L2900/15043Y02E20/34
Inventor 何雁飞韦志平薛志芳陈益增顾之震
Owner WUXI HUAGUANG BOILER
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