Assembled circulating fluidized bed heat carrier boiler

A circulating fluidized bed and carrier technology, applied in the field of boilers, can solve the problem of not adopting a fluidized combustion circulating fluidized combustion structure, etc., and achieve the effects of good environmental protection efficiency, shortened installation period and high separation efficiency

Inactive Publication Date: 2011-10-19
湘潭互创洁净能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So at present, coal-fired heat carrier boilers generally adopt layer combustion forms such as hand-fired furnaces and reciprocating furnaces, and do not use circulating fluidized combustion structures that use fluidized combustion.

Method used

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  • Assembled circulating fluidized bed heat carrier boiler
  • Assembled circulating fluidized bed heat carrier boiler

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Embodiment Construction

[0030] see figure 1 , the assembled circulating fluidized bed heat carrier boiler of the present invention includes three groups of equipment, namely, a circulating fluidized bed combustion furnace 1 without a heating surface, a separator 2, a heat exchanger 4 with a heating surface, and a circulating fluidized bed without a heating surface. The high-temperature flue gas output of the fluidized bed combustion furnace 1 is connected to the separator 2, and the separated clean high-temperature flue gas output by the separator 2 is connected to the heat exchanger 4 with a heating surface. The circulating fluidized bed combustion furnace 1 without heating surface is placed in the furnace body 10, the coal feeding device 7 is installed on one side of the furnace 1, the wind cap 5 and the air chamber 6 are installed at the bottom of the furnace 1, and the separator 2 is connected to the lower part of the furnace 1 Install the material return device 3 and the material return air cham...

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Abstract

An assembled circulating fluidized bed heat carrier boiler comprises three sets of devices including a circulating fluidized bed combustion hearth without a heating surface, a separator and a heat exchanger provided with heating surfaces, wherein high-temperature smoke output of the circulating fluidized bed combustion hearth without the heating surface is connected and communicated with the separator, and separated clean high-temperature smoke output by the separator is connected and communicated with the heat exchanger with the heating surface. For the assembled circulating fluidized bed heat carrier boiler, the combustion efficiency is high, the applicability of coal types is wide, the loss of latent heat is avoided, the temperature of a heat carrier is high, the control is precise, and the abrasion of a booster caused by the heating surface can be avoided, thereby being safe and reliable.

Description

technical field [0001] The invention relates to the technical field of boilers, in particular to an assembled circulating fluidized bed heat carrier boiler. Background technique [0002] The circulating fluidized bed boiler has high combustion efficiency, which can reach more than 98%, which is more than 20% higher than the existing layer combustion boiler thermal efficiency, and the coal type has wide adaptability. Whether it is bituminous coal, anthracite or coal gangue, it can use. The existing layer-firing boilers can only use high-quality bituminous coal. But the biggest problem of circulating fluidized bed is the wear of heating surface. In the combustion chamber and hearth of the furnace, the heating surface of ordinary steam boilers is as short as one year, and as long as three to five years. It is a way to stop the furnace for repair, but it will not cause a safety accident. If the heat carrier boiler also adopts a common circulating fluidized bed structure, the...

Claims

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Application Information

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IPC IPC(8): F24H7/00F23C10/10
Inventor 何相助
Owner 湘潭互创洁净能源有限公司
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