CN205279075U

CN205279075U - Cyclone burner with abrasionproof wind

Info

Publication number: CN205279075U
Application number: CN201521104543.4U
Authority: CN
Inventors: 方顺利; 姚伟; 杨忠灿; 蒙毅; 王桂芳
Original assignee: Xian Thermal Power Research Institute Co Ltd
Current assignee: Xian Thermal Power Research Institute Co Ltd
Priority date: 2015-12-28
Filing date: 2015-12-28
Publication date: 2016-06-01
Anticipated expiration: 2025-12-28

Abstract

The utility model discloses a cyclone burner with abrasionproof wind, including wind passageway of circular shape, from interior to exterior sets gradually a wind passageway week in ascending overgrate air passageway overgrate air passageway outside and to and set up the abrasionproof wind passageway on the wall between wind passageway and interior overgrate air passageway, and inside overgrate air flow direction is met to the air intake of abrasionproof wind passageway. Cyclone burner follows wind passageway of the interior inflow of interior overgrate air passageway at during operation, partial interior overgrate air through this abrasionproof wind passageway to wash away wind passageway internal face one time, thereby keep apart most buggy and a wind passageway internal face that wind carried, prevent that the pulverized coal particle from leading to the fact wearing and tearing to a wind passageway internal face.

Description

A kind of turbulent burner with abrasionproof wind

Technical field:

This utility model belongs to boiler and uses the abrasiveness field compared with the burner of strong coal kind, is specifically related to a kind of turbulent burner with abrasionproof wind.

Background technology:

When using the stronger coal of some abrasiveness, it is fast that boiler is faced with the burner rate of wear, and the phenomenon that the degree of wear is serious, this makes boiler usually burner will be keeped in repair and change in a short time, and power plant causes bigger loss.

Solve preventing-abrasion method conventional when burner uses abrasiveness compared with strong coal kind and have following: burner adopts the good steel of wearability to manufacture; Burner position easy to wear build-up wear-resistant damages steel, and relevant position is carried out thickening process; Burner position easy to wear carries out patch potsherd and processes. The above Precautionary Measure can alleviate the abrasion condition of burner nozzle, but relatively costly, and can not fundamentally solve the wear problem of burner.

Utility model content:

The purpose of this utility model is to provide a kind of turbulent burner with abrasionproof wind, it is possible to strengthen the turbulent burner anti-wear ability when using abrasiveness compared with strong coal kind, improves the service life of burner.

For reaching above-mentioned purpose, this utility model adopts the following technical scheme that and is achieved:

A kind of turbulent burner with abrasionproof wind, including circular First air passage, it is successively set on the inner second air passage in First air passage circumference and outer second air passage from the inside to the outside, and be arranged on the abrasionproof wind passage on the wall between First air passage and inner second air passage, and the air inlet of abrasionproof wind passage is met to inner second air flow direction.

This utility model is further improved by, and the wall between First air passage and inner second air passage offers the through hole for installing abrasionproof wind passage, and the angle between the axis of the axis of this through hole and First air passage is acute angle.

This utility model is further improved by, and the angle between axis and the tangent line of its installed position of abrasionproof wind passage is acute angle.

This utility model is further improved by, and on the wall between First air passage and inner second air passage, circumference is evenly arranged with several abrasionproof wind passages.

This utility model is further improved by, and the wall between First air passage and inner second air passage has some row abrasionproof wind passages along the axially arranged of First air passage.

This utility model is further improved by, and the internal diameter of abrasionproof wind passage is 5mm-30mm.

Compared with prior art, key problem in technology of the present utility model be in that following some:

1) this utility model is used for using protection turbulent burner nozzle arrangements during abrasiveness relatively strong coal kind, and slow down its rate of wear, extends turbulent burner nozzle life. Shown in what Fig. 2 of its structure such as Fig. 1;

2), in the turbulent burner nozzle that this utility model provides, in the inner second air passage outside First air nozzle wall surface, it is uniformly distributed some abrasionproof wind passages. Burner is operationally, part inner second air flows into First air passage by this abrasionproof wind passage in inner second air passage, and wash away First air vias inner walls face, thus most of coal dust that First air is carried and the isolation of First air nozzle inner walls face, it is prevented that abrasion is caused in First air nozzle inner walls face by pulverized coal particle;

3), in the turbulent burner with abrasionproof wind that this utility model provides, by being evenly arranged a number of through hole at First air wall, and corresponding lead to the hole site arranges abrasionproof wind passage in inner second air passage.

4), in the turbulent burner with abrasionproof wind that this utility model provides, the existence of abrasionproof wind passage makes the abrasionproof wind from inner second air passage entrance First air passage wash away First air nozzle inner walls face with the form of axial rotational flow along First air airflow direction after entering First air passage with arranging;

5) the abrasionproof air quantity in the turbulent burner with abrasionproof wind that this utility model provides is less, has undesirable effect thus without to coal dust fired state in the burner;

6) utility model that this utility model provides is applicable to use the coal that abrasiveness is stronger, is also applied for using the coal that abrasiveness is general.

Accompanying drawing illustrates:

Fig. 1 is the front view of this utility model turbulent burner;

Fig. 2 is the side view of this utility model turbulent burner.

In figure: 1 is First air passage; 2 is inner second air passage; 3 is outer second air passage; 4 is abrasionproof wind passage.

Detailed description of the invention:

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As depicted in figs. 1 and 2, a kind of turbulent burner with abrasionproof wind of this utility model, including circular First air passage 1, it is successively set on the inner second air passage 2 in First air passage 1 circumference and outer second air passage 3 from the inside to the outside, and be arranged on the abrasionproof wind passage 4 on the wall between First air passage 1 and inner second air passage 2, and the air inlet of abrasionproof wind passage 4 is met to inner second air flow direction.

Preferably, wall between First air passage 1 and inner second air passage 2 offers the through hole for installing abrasionproof wind passage 4, and the angle between the axis of the axis of this through hole and First air passage 1 is acute angle, additionally, the angle between axis and the tangent line of its installed position of abrasionproof wind passage 4 is acute angle.

Preferably, on wall between First air passage 1 and inner second air passage 2, circumference is evenly arranged with several abrasionproof wind passages 4, and has some row abrasionproof wind passages 4 along the axially arranged of First air passage 1 on the wall between First air passage 1 and inner second air passage 2.

During this utility model practical application, the internal diameter of abrasionproof wind passage 4 is 5mm-30mm.

Turbulent burner is operationally, part inner second air flows into First air passage 1 by this abrasionproof wind passage 4 in inner second air passage 2, and wash away First air passage 1 internal face, thus most of coal dust that First air is carried and the isolation of First air passage 1 internal face, it is prevented that First air passage 1 internal face is caused abrasion by pulverized coal particle.

Claims

1. the turbulent burner with abrasionproof wind, it is characterized in that, including circular First air passage (1), it is successively set on the inner second air passage (2) in First air passage (1) circumference and outer second air passage (3) from the inside to the outside, and be arranged on abrasionproof wind passage (4) on the wall between First air passage (1) and inner second air passage (2), and the air inlet of abrasionproof wind passage (4) is met to inner second air flow direction.

2. a kind of turbulent burner with abrasionproof wind according to claim 1, it is characterized in that, wall between First air passage (1) and inner second air passage (2) offers the through hole for installing abrasionproof wind passage (4), and the angle between the axis of the axis of this through hole and First air passage (1) is acute angle.

3. a kind of turbulent burner with abrasionproof wind according to claim 2, it is characterised in that the angle between axis and the tangent line of its installed position of abrasionproof wind passage (4) is acute angle.

4. a kind of turbulent burner with abrasionproof wind according to claim 1, it is characterized in that, on the wall between First air passage (1) and inner second air passage (2), circumference is evenly arranged with several abrasionproofs wind passage (4).

5. a kind of turbulent burner with abrasionproof wind according to claim 1, it is characterized in that the wall between First air passage (1) and inner second air passage (2) has some row abrasionproof wind passage (4) along the axially arranged of First air passage (1).

6. a kind of turbulent burner with abrasionproof wind according to claim 1, it is characterised in that the internal diameter of abrasionproof wind passage (4) is 5mm-30mm.