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Inlet flue of coal-fired boiler desulfurization system

A technology of desulfurization system and inlet flue, which is applied in combustion method, combustion product treatment, lighting and heating equipment, etc. The effect of uniform distribution

Active Publication Date: 2021-11-16
SHANGHAI INST OF SPECIAL EQUIP INSPECTION & TECHN RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in this application is that the length of the flue gas flue from the outlet of the induced draft fan to the inlet of the desulfurization tower is too long, resulting in large local losses and losses along the way.

Method used

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  • Inlet flue of coal-fired boiler desulfurization system

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Embodiment Construction

[0016] In order to make the application more obvious and understandable, the application will be described in detail below in conjunction with the accompanying drawings. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0017] In each of the following embodiments or examples, if there is no specific functional component or structure, it means that it is a conventional component or conventional structure adopted in the art to realize the corresponding function.

[0018] In order to achieve a relatively uniform flue gas velocity at the outlet of the induced draft fan and a relatively small resistance loss, this application provides an inlet flue for the desulfurization system of a coal-fired boiler. For its structure, see figure 1 As shown, it includes the left flue a...

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Abstract

The invention discloses an inlet flue of a coal-fired boiler desulfurization system. The inlet flue is characterized in that an induced draft fan outlet pipe, a reducer, at least one elbow for adjusting the direction of the flue, at least one straight pipe section for increasing the length of the flue and a square-round joint connected to a square flue of an inlet section of the desulfurization system are arranged on the flue from an induced draft fan outlet. The inlet flue has the advantages that the whole flue is designed to be a better streamlined round flue, and through the concentric reducer and the smooth transition elbows, the flow velocity and distribution of flue gas in the whole boiler flue are uniform, so that the problems that in an inlet flue of an existing desulfurization system, the resistance loss is large and the speed uniformity is poor due to multiple vortexes of airflow at the flue confluence and the elbows are solved.

Description

technical field [0001] The application relates to an inlet flue of a coal-fired boiler desulfurization system, which belongs to the technical field of energy saving in thermal power plants. Background technique [0002] According to my country's goal of carbon neutrality and carbon peaking, under this background, as the main force in the energy structure, energy conservation and consumption reduction in the field of thermal power generation is imminent. In order to reduce the power consumption rate of thermal power plants and the demand for energy-saving and environmental protection transformation, a large number of power plants have carried out combined transformation of induced draft fans and booster fans. After the transformation, the original flue gas flue from the outlet of the induced draft fan to the inlet of the desulfurization tower has a large number of elbows and a long distance along the path, resulting in large local losses and losses along the path. Contents ...

Claims

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Application Information

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IPC IPC(8): F23J15/00F23J15/02F23J13/00
CPCF23J15/006F23J15/02F23J13/00
Inventor 王克陈艺汤陈怀董樑殷小明李响刘重阳
Owner SHANGHAI INST OF SPECIAL EQUIP INSPECTION & TECHN RES
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