A method and device for deicing the first chimney after desulfurization by a single chimney

A chimney and single-tube technology, which is applied in combustion methods, exhaust gas devices, combustion products treatment, etc., can solve the problems of icing at the head of the chimney, and achieve lower investment costs, no use costs, high economic value and energy saving. Effect

Active Publication Date: 2016-09-28
JILIN ELECTRIC POWER SURVEY & DESIGN INST
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  • Abstract
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Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a method of using the waste heat of the flue gas itself to solve the problem of icing at the head of the chimney without additional energy.

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  • A method and device for deicing the first chimney after desulfurization by a single chimney
  • A method and device for deicing the first chimney after desulfurization by a single chimney
  • A method and device for deicing the first chimney after desulfurization by a single chimney

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Embodiment Construction

[0040] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0041] like figure 1 combine figure 2 , image 3As shown, a single-tube chimney anti-icing device at the head of the chimney after desulfurization, adds a steel cylinder 1 equal to the inner diameter of the chimney at the head of the original concrete chimney, and sets a recovery plate 6 at the connection between the steel cylinder 1 and the original concrete chimney, so that The flue gas is discharged through the steel cylinder 1, and the steel cylinder 1 plays the role of melting ice; it can be welded and assembled in pieces, and the recovery plate 6 under the steel cylinder 1 can recover the ...

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Abstract

The invention belongs to the field of old chimney transformation, and particularly relates to a method and device for preventing and melting ice on the tube head of an existing old single-tube chimney in a cold area after desulfurization. A steel tube with the diameter equal to the inner diameter of the chimney is additionally arranged on the tube head portion of the original concrete chimney, a recovery tray is arranged at the joint of the steel tube and the original concrete chimney, smoke is exhausted through the steel tube, the recovery tray below the steel tube can recover condensed liquid which is rapidly generated by the damp smoke after the damp smoke encounters cold air, the condensed liquid flows back into the chimney through recovery holes reserved in the recovery tray, and the problem of icing of the tube head of the chimney is solved through waste heat of the smoke without additional energy. Compared with a tube head heat tracing device which is generally used at present, the initial cost is lowered, and the use cost and the maintenance cost are avoided.

Description

technical field [0001] The invention belongs to the field of reconstruction of old chimneys, and in particular relates to a deicing prevention method and device for the head of an old single-tube chimney after desulfurization in cold regions. Background technique [0002] With the continuous increase of the number of large and medium-sized thermal power plants in my country, the dust pollution caused by coal-fired boilers in thermal power plants and the acid rain effect caused by sulfur dioxide emissions have increasingly aggravated environmental pollution. Therefore, the total control of sulfur dioxide emissions is the main control index for national energy conservation and emission reduction, and all new thermal power plants must be designed for desulfurization. And require the old power plants also to rectify the desulfurization equipment within a time limit. [0003] At present, the desulfurization method generally adopted by thermal power plants in my country is limest...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23J13/00
Inventor 刘学新田秀俊李晓梅杨秀萍兰公春王险峰
Owner JILIN ELECTRIC POWER SURVEY & DESIGN INST
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