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Soot blower improving uniformity of SCR inlet flow field

A soot blower and uniformity technology, which is applied in the field of soot blowers to improve the uniformity of the SCR inlet flow field, can solve the problems of SCR inlet flue accumulation and other problems, and achieve the effect of large ammonia escape and saving manpower and time.

Pending Publication Date: 2017-09-29
HUADIAN ELECTRIC POWER SCI INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to effectively solve the problem of serious ash accumulation in the SCR inlet flue of a coal-fired power plant, save manpower and time for cleaning ash while improving the uniformity of the SCR flow field, and further provide a soot blowing device for improving the uniformity of the SCR inlet flow field

Method used

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  • Soot blower improving uniformity of SCR inlet flow field
  • Soot blower improving uniformity of SCR inlet flow field
  • Soot blower improving uniformity of SCR inlet flow field

Examples

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and through the examples. The following examples are to explain the present invention and the present invention is not limited to the following examples.

[0017] Example.

[0018] see Figure 1-4 .

[0019] This embodiment is a soot blowing device for improving the uniformity of the SCR inlet flow field, including multi-channel compressed air branch pipe 4, compressed air main pipe 5, branch pipe pressure monitoring system, soot blowing device, compressed air main pipe manual switch valve 6, Communication cable 10, branch pipe purge switch and purge time control system.

[0020] As a preference, in this embodiment, the pressure gauge 8 is selected for the branch pipe pressure monitoring system, the soot blowing cap 9 is selected for the soot blowing device, the compressed air branch pipe electromagnetic switch valve 7 is selected for the branch pipe purge swi...

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Abstract

The invention relates to a soot blower improving the uniformity of an SCR inlet flow field. The soot blower is characterized in that the soot blower comprises a compressed air main pipe, a plurality of compressed air branched pipes, pressure gauges and soot blowing hoods; the compressed air main pipe communicates with a station compressed air pipeline; the multiple compressed air branched pipes communicate with the compressed air main pipe; the soot blowing hoods communicate with the multiple compressed air branched pipes; the pressure gauges are mounted on the multiple compressed air branched pipes; the pressure gauges and the soot blowing hoods are sequentially arranged in the compressed air flowing direction; the soot blowing hoods are mounted in a flue; the flue is connected with guide plates; the guide plates are connected with a downstream flue; and the flue, the guide plates and the downstream flue are sequentially arranged in the smoke movement direction. Lots of manpower and time for cleaning soot deposits during each time of stopping due to too much soot deposits are saved.

Description

technical field [0001] The invention relates to a soot blowing device for improving the uniformity of an SCR inlet flow field, and belongs to the technical field of soot accumulation prevention and control in flue ducts of coal-fired power plants. Background technique [0002] Dust accumulation in the boiler flue of coal-fired power plants is a common problem in coal-fired power plants. In recent years, as the country has become more and more stringent on the discharge of pollutants from coal-fired power plants, coal-fired boilers are basically equipped with SCR denitrification systems to meet the boiler NO x Emission compliance requirements. The commissioning of SCR equipment was not completed at the initial stage of boiler design, but was added later due to environmental protection requirements, which made the corresponding flue size of most units in the later stage of SCR design and installation very different from that of the original boiler economizer outlet flue size ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23J3/02
CPCF23J3/026F23J2700/001
Inventor 马龙信高佳佳路昆何建乐傅旭峰王甲安郑健
Owner HUADIAN ELECTRIC POWER SCI INST CO LTD
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