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Cascading type rectifier used for SCR denitration device

A rectifier and stacked technology, which is applied in the field of flue gas purification, can solve the problems of insufficient cost savings and achieve the effects of material saving, overall weight reduction and easy replacement

Active Publication Date: 2010-02-10
CPI YUANDA ENVIRONMENTAL PROTECTION ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because this traditional rectifier uses a section of steel plate rectifier, it is not economical enough in terms of cost. At the same time, once it is damaged, the whole steel plate can only be replaced before it can continue to be used.

Method used

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  • Cascading type rectifier used for SCR denitration device
  • Cascading type rectifier used for SCR denitration device
  • Cascading type rectifier used for SCR denitration device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The stacked rectifier used for SCR denitrification equipment of the present invention includes an upper rectifying plate 1 and a lower rectifying plate 2 stacked together, and the upper rectifying plate 1 is provided with several regularly arranged rectifying holes 1 passing through the body of the upper rectifying plate 3. The lower rectification plate 2 is provided with a rectification hole II 4 corresponding to the rectification hole I 3 and passing through the body of the lower rectification plate. The rectification hole I 3 and the rectification hole II 4 partially overlap in the vertical direction, and the overlapping parts form multiple The rectification passage vertically runs through the rectifier body. In this embodiment, the upper rectification plate 1 and the lower rectification plate 2 have the same area and the same size, and they are all rectangular plates;

[0032] Such as figure 2 As shown, the rectification hole I 3 includes a plurality of square hole...

Embodiment 2

[0037] In this embodiment, the upper rectifying plate 1 and the lower rectifying plate 2 are still rectangles with the same area and overlapping four sides when stacked, and are formed by vertical and horizontal arrangement of steel bars with a thickness of less than 1 cm and welded as a whole. Figure 5 As shown, the upper rectifying plate 1 adopts a sieve-like structure, and the whole of the upper rectifying plate 1 is evenly divided into a plurality of rectifying holes I3 by steel bars. It can be seen from the figure that the rectifying holes I3 are rectangular holes, and the specifications of the rectifying holes I3 have two types. Kind, wherein the width of the rectifying hole I3 arranged at the two ends of the lower rectifying plate 2 is smaller than the rectifying hole I3 arranged in the middle of the lower rectifying plate 2, in this embodiment, the width of the rectifying hole I3 at both ends is approximately equal to the rectifying hole I3 in the middle half of the wi...

Embodiment 3

[0039] Such as Figure 8As shown (the solid line small box in the figure represents the rectification hole I, the dotted line small box represents the rectification hole II, and the shaded part represents the rectification channel), the difference between embodiment two and the implementation one is that the rectification hole I3 and the rectification hole The hole II 4 is arranged obliquely, wherein, along the same direction of the horizontal plane, the rectification hole I 3 is set at a left inclination of 45°, the rectification hole II 4 is set at a right inclination of 45°, and any two rectification holes I 3 on the upper rectification plate The two rectification holes II 4 corresponding to the lower rectification plate are overlapped at both ends in the vertical direction, correspondingly forming four rhombus rectification channels.

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Abstract

The invention discloses a cascading type rectifier used for SCR denitration device, comprising an upper rectifying plate and a lower rectifying plate that are laminated together; wherein the upper rectifying plate is provided with a plurality of regular spread rectifying holes I penetrating the upper rectifying plate body, the lower rectifying plate is provided with rectifying holes II which correspond to the rectifying holes I and penetrates the lower rectifying plate body, the rectifying holes I and the rectifying holes II are partially laminated in vertical direction, and the laminated partforms a plurality of rectifying channels vertically penetrating the rectifier body. The rectifier is formed by adopting the upper and lower rectifying plates, and a plurality of rectifying channels are formed through overlap of the rectifying holes opened on the upper and lower rectifying plates in different directions, thus not only the effect of uniform smoke movement is achieved but also manufacturing cost can be saved.

Description

technical field [0001] The invention relates to the technical field of flue gas purification, in particular to a laminated rectifier used for SCR denitrification equipment. Background technique [0002] my country is a country that uses coal as the main energy source, and coal-fired power generation is one of the most important ways of coal utilization in my country. According to my country's national conditions, coal-fired power generation will dominate in the 21st century. Among the many air pollutants emitted by coal-fired thermal power units, SO 2 And the dust is more harmful to the environment and is the main pollutant to be controlled. With the progress of society and the development of economy, the pollution of thermal power plants to the atmospheric environment has been widely concerned by people. Therefore, it is a severe challenge for the sustainable development of my country's energy field to effectively reduce pollutant emissions and improve the impact on the e...

Claims

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Application Information

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IPC IPC(8): B01D53/86B01D53/56
Inventor 杜云贵邓佳佳肖涛蒙剑隋建才洪燕吴其荣何凡李紫龙秦福初丁晓红刘艳荣
Owner CPI YUANDA ENVIRONMENTAL PROTECTION ENG
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