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Boiler flue ash blowing system and ash blowing method

A technology of soot blowing system and boiler flue, which is applied in the combustion method, combustion product treatment, removal of solid residue, etc., can solve the problem of soot accumulation in boiler flue, avoid dead corners of blowing, simple structure, and soot blowing. Efficient effect

Pending Publication Date: 2018-05-15
SHANGHAI HUADIAN ELECTRIC POWER DEV CO LTD
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  • Abstract
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Problems solved by technology

[0005] One of the purposes of the present invention is to provide a boiler flue soot blowing system, which can solve the problem of soot accumulation in the boiler flue

Method used

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  • Boiler flue ash blowing system and ash blowing method
  • Boiler flue ash blowing system and ash blowing method

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Embodiment Construction

[0041] The above solution will be further described below in conjunction with specific embodiments. It should be understood that these examples are used to illustrate the present invention and not to limit the scope of the present invention. The implementation conditions used in the examples can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not indicated are usually the conditions in routine experiments.

[0042] see figure 1 , which is a structural schematic diagram of an embodiment of the present invention, provides a boiler flue soot blowing system, including two groups of soot blowing devices arranged on the inner wall of the bottom of the horizontal flue and symmetrically arranged along the center line of the flue length direction, the soot blowing devices include along the The first sootblowing assembly and the second sootblowing assembly are arranged in the direction of flue gas flow. The first sootblowing ...

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Abstract

The invention discloses a boiler flue ash blowing system and an ash blowing method. The ash blowing device comprises two sets of ash blowing devices symmetrically arranged on the bottom inner wall ofa horizontal flue along a center line of the width direction of the flue; the ash blowing devices comprise multiple sets of ash blowing modules arranged in a smoke flowing direction; the ash blowing modules comprise two rows of ash blowing wind caps (5) arranged in a staggered manner; each row of ash blowing wind caps (5) is arranged in the width direction of the horizontal flue; the two rows of ash blowing wind caps (5) respectively communicate to branch pipes (8) by intake pipes (5); all the branch pipes (8) communicate to a main pipe (9); the main pipe (9) is connected to a compressed gas supply device; electromagnetic valves (10) are arranged on the branch pipes (8); and a control device is connected with the electromagnetic valves (10), and controls opening and closing of the branch pipes (8) through the electromagnetic valves (10). The boiler flue ash blowing system and ash blowing method can solve the problem of ash accumulation in the horizontal flue.

Description

technical field [0001] The invention relates to the technical field of flue soot blowing, in particular to a boiler flue soot blowing system and a soot blowing method. Background technique [0002] Severe ash deposits at the corners of the horizontal flue of coal-fired boilers. Severe ash deposits not only reduce the heat exchange surface between the flue gas and the heat exchanger, but also reduce the heat exchange effect of the heat exchanger. Smoke flow field. [0003] Aiming at the serious situation of soot accumulation in the flue of a coal-fired boiler, many solutions have appeared at home and abroad. For example, in the Chinese patent whose publication number is CN104180379A, a soot blowing method and device for the horizontal flue of a Π-type boiler are disclosed. It consists of a temperature measurement system, a control module and a soot blowing system. The temperature measurement system includes a first temperature detector and a second temperature detector insta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23J3/02
CPCF23J3/02
Inventor 赵华许挺
Owner SHANGHAI HUADIAN ELECTRIC POWER DEV CO LTD
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