CN203068503U - Nozzle of pulverized coal burner - Google Patents
Nozzle of pulverized coal burner Download PDFInfo
- Publication number
- CN203068503U CN203068503U CN 201320023014 CN201320023014U CN203068503U CN 203068503 U CN203068503 U CN 203068503U CN 201320023014 CN201320023014 CN 201320023014 CN 201320023014 U CN201320023014 U CN 201320023014U CN 203068503 U CN203068503 U CN 203068503U
- Authority
- CN
- China
- Prior art keywords
- nozzle
- pulverized coal
- coal burner
- partition plate
- dividing plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a nozzle of a pulverized coal burner. The nozzle of the pulverized coal burner comprises a nozzle body and a pulverized coal channel, wherein the nozzle body and the pulverized coal channel are sequentially arranged from outside to inside. The nozzle body and the pulverized coal channel are respectively provided with a set of partition plate grooves mutually matched. A first partition plate, a second partition plate and a third partition plate are fixed inside the set of partition plate grooves through a welding part. The length of the welding part is 2mm to 5mm. According to the pulverized coal burner, due to the fact that the partition plates are fixed inside the partition plate grooves through the welding part with a small size, the partition plates can be conveniently replaced. Therefore, the nozzle of the pulverized coal burner can be conveniently repaired and operating cost of the pulverized coal burner is greatly reduced.
Description
Technical field
The utility model belongs to field of electrical equipment, particularly a kind of coal burner nozzle easy to maintenance.
Background technology
For obtaining good coal dust firing effect, the nozzle of the coal burner in thermal power plant often adopts the reamer form, and namely the spout profile is horn-like, and its inner flow area enlarges gradually.At the coal burner middle part one group of dividing plate is arranged fixedly usually, coal dust is spread apart it is fully burnt, yet, because air-flow conveying solid substance coal dust is adopted in the thermal power plant usually, the high velocity air of entrained solids coal dust is when flowing through nozzle, and solid particle bump nozzle intermediate membrane makes its heavy wear, thereby causes the nozzle of coal burner short service life, usually need to change the nozzle of burner, cause maintenance of equipment cost height, have a strong impact on the normal operation in thermal power plant.
The utility model content
The utility model purpose: the purpose of this utility model provides a kind of coal burner nozzle easy to maintenance.
Technical scheme: a kind of coal burner nozzle that the utility model provides, comprise the shower nozzle and the coal dust passage that from outer to inner set gradually, be respectively equipped with one group of septalium of working in coordination on described shower nozzle and the coal dust passage, by weld part first dividing plate, second partition and the 3rd dividing plate are arranged fixedly in described one group of septalium, the length of described weld part is 2 to 5cm.
As improvement, font or waveform are bent in being shaped as of described the 3rd dividing plate.
The coal burner nozzle in use for some time, because solid particle bump nozzle intermediate membrane makes its heavy wear, particularly the 3rd dividing plate wearing and tearing are the most serious, and directly to change dividing plate namely reusable by severing short weld part, greatly reduce maintenance, the operation cost of equipment.
Beneficial effect: the coal burner that the utility model provides utilizes the short weld part of size that dividing plate is fixed in the septalium, thereby is convenient for changing dividing plate, thereby makes coal burner nozzle convenient for maintaining, greatly reduces the operation cost of coal burner.
Description of drawings
Fig. 1 is the utility model coal burner structure of nozzle schematic diagram.
Fig. 2 is the side view of the utility model coal burner nozzle.
The specific embodiment
Below in conjunction with accompanying drawing the utility model coal burner nozzle is made and to further specify.
The coal burner nozzle, see Fig. 1 and Fig. 2, comprise the shower nozzle 1 and the coal dust passage 2 that from outer to inner set gradually, be respectively equipped with one group of septalium of working in coordination on shower nozzle 1 and the coal dust passage 2, by weld part 6 first dividing plate 3, second partition 4 and the 3rd dividing plate 5 are arranged fixedly in one group of septalium, the length of weld part 6 can be selected arbitrarily according to the specification of coal burner, is preferably 2 to 5cm.In the utility model, the 3rd dividing plate 5 be shaped as the bow font, alternatively, the 3rd dividing plate also can be waveform.
Claims (2)
1. coal burner nozzle, it is characterized in that: comprise the shower nozzle (1) and the coal dust passage (2) that from outer to inner set gradually, be respectively equipped with one group of septalium of working in coordination on described shower nozzle (1) and the coal dust passage (2), by weld part (6) first dividing plate (3), second partition (4) and the 3rd dividing plate (5) are arranged fixedly in described one group of septalium, the length of described weld part (6) is 2 to 5cm.
2. a kind of burner nozzle according to claim 1 is characterized in that: described the 3rd dividing plate (5) be shaped as bow font or waveform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320023014 CN203068503U (en) | 2013-01-16 | 2013-01-16 | Nozzle of pulverized coal burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320023014 CN203068503U (en) | 2013-01-16 | 2013-01-16 | Nozzle of pulverized coal burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203068503U true CN203068503U (en) | 2013-07-17 |
Family
ID=48767282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320023014 Expired - Fee Related CN203068503U (en) | 2013-01-16 | 2013-01-16 | Nozzle of pulverized coal burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203068503U (en) |
-
2013
- 2013-01-16 CN CN 201320023014 patent/CN203068503U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20160116 |
|
| EXPY | Termination of patent right or utility model |