CN202576364U - High-pressure coal water slurry gasification process nozzle capable of prolonging usage period - Google Patents
High-pressure coal water slurry gasification process nozzle capable of prolonging usage period Download PDFInfo
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- CN202576364U CN202576364U CN 201220265206 CN201220265206U CN202576364U CN 202576364 U CN202576364 U CN 202576364U CN 201220265206 CN201220265206 CN 201220265206 CN 201220265206 U CN201220265206 U CN 201220265206U CN 202576364 U CN202576364 U CN 202576364U
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Abstract
The utility model discloses a high-pressure coal water slurry gasification process nozzle capable of prolonging a usage period. The nozzle comprises an inner pipe, a middle pipe and an outer pipe, wherein the inner pipe, the middle pipe and the outer pipe are arranged from inside to outside, one end of the outer pipe is connected with an end cover c, the center of the end cover c is provided with a through hole a, the middle pipe penetrates through the through hole a, the outer wall of one end of the outer pipe is connected with a flange c fixedly through a pipe line, the outer wall of the other end of the outer pipe is provided with a cooling water disk pipe, one end of the middle pipe is connected with an end cover b, the center of the end cover b is provided with a through hole b, one end of the inner pipe penetrates through the through hole b, the outer wall of the middle pipe is connected with a flange b fixedly through a pipe line, one end of the inner pip is connected with an end cover a, the outer all of the inner pipe is connected with a flange a fixedly a through a pipe line, and the other ends of the inner pipe, the middle pipe and the outer pipe are respectively connected with an inner head, a middle head and an outer head fixedly. On the premise that the performance of the high-pressure coal water slurry gasification process nozzle is guaranteed, the area of a coal slurry flowing channel is improved, so that flow rates of central oxygen and water coal slurry mixed liquid are reduced, abrasion of the middle head of the nozzle is reduced, and the usage period of the nozzle is prolonged.
Description
Technical field
The utility model belongs to Coal Chemical Industry high pressure water coal slurry gasification technology field, relates to a kind of high pressure water coal slurry gasifying process nozzle that improves life cycle.
Background technology:
At present, high pressure water coal slurry gasifying process nozzle is in application process, because its abrasion resistance is relatively poor, nozzle is when operation is more than 30 days, and the coal water slurry runner washes away comparatively serious, continues to use and will wash away the externally cooled chuck, causes chuck to leak.And coal water slurry runner outer rim is not through be regular circular after washing away, and many places breach occurs and peel off, and coal slurry is changed at the local location jet angle, influence atomizing effect, causes the gas ingredients fluctuation.Influenced by it, the gasifier operation time rested on about 30-35 days always, will carry out " burner is to the cycle " the planned furnace operating up to 30-40 time every year.The stove that falls brings enormous economic loss to factory, has brought very large maintenance safety risk for the technology maintainer.
Summary of the invention
The purpose of the utility model provides a kind of high pressure water coal slurry gasifying process nozzle that improves life cycle, has solved that nozzle is not anti-in the prior art washes away, the problem that work-ing life is short.
The technical scheme that the utility model adopted is that a kind of high pressure water coal slurry gasifying process nozzle that improves life cycle comprises by interior interior pipe, middle pipe and outer tube to outer setting; Outer tube one end is connected with end cap c; End cap c center has the through hole a that adapts with middle O.D.T., and the one end of the central tube passes from through hole a, and outer tube is connected with flange c near the outer wall of end cap c through pipeline; Outer tube the other end outer wall is provided with the cooling water coil of duplex coiling
The one end of the central tube is connected with end cap b, and end cap b center has the through hole b that adapts with interior O.D.T., and interior Guan Yiduan passes from through hole b, and middle pipe is connected with flange b near the outer wall of end cap b through pipeline,
Interior Guan Yiduan is connected with end cap a, and interior pipe is connected with flange a near the outer wall of end cap c through pipeline,
In the other end of pipe, middle pipe and outer tube be connected with interior head, middle head and the outside respectively, interior head, middle head and outer cephalic par are taper, middle head is concordant with outer cephalic par, interior cephalic par and middle cephalic par formation cavity.
The characteristics of the utility model also are,
Inner wall surface spraying nickel-chromium-tungsten coating during pipe reaches wherein.
Head is 1:1.21 with the internal diameter ratio of the outside wherein.
The beneficial effect of the utility model is; Under the prerequisite of guaranteeing high pressure water coal slurry gasifying process nozzle atomization performance; The coal slurry flow area is improved, thus the flow velocity of reduction central oxygen G&W coal slurry mixed stream, and the head wearing and tearing have improved the nozzle life cycle in the minimizing nozzle.
Description of drawings
Fig. 1 is that high pressure water coal slurry gasifying process nozzle is always schemed;
Fig. 2 is a technology nozzle head sectional view.
Wherein, 1. in pipe, 2. in pipe, 3. outer tube, 4. end cap a, 5. end cap b, 6. end cap c, 7. through hole a, 8. flange c, 9. through hole b, 10. flange b, 11. flange a, 12. cooling water coils, heads in 13., head in 14., 15. the outsides.
Embodiment
The utility model provides a kind of high pressure water coal slurry gasifying process nozzle that improves life cycle; Comprise that outer tube 3 one ends are connected with end cap c6 by interior interior pipe 1, middle pipe 2 and outer tube 3 to outer setting, end cap c6 center has the through hole a7 that adapts with middle pipe 2 external diameters; Middle pipe 2 one ends pass from through hole a7; Outer tube 3 is connected with flange c8 near the outer wall of end cap c6 through pipeline, and outer tube 3 the other end outer walls are provided with the cooling water coil 12 of duplex coiling
In the other end of pipe 1, middle pipe 2 and outer tube 3 be connected with respectively in 13, in 14 and the outside 15; In 13, in 14 and 15 ends, the outside be taper; In 14 concordant with 15 ends, the outside; In 13 end with in 14 ends form cavity, middle pipe 2 and in 14 an inner wall surface spraying nickel-chromium-tungsten coating improve abrasion resistance.
Wherein, in 14 with the internal diameter of the outside 15 than being 1:1.21.
Guaranteeing that through calculating coal water slurry pipeline and vapourizing furnace burner hearth pressure reduction are not less than under the prerequisite of 0.6Mpa; In 14 be set to 1:1.21 with the internal diameter ratio of the outside 15; 14 internal diameter expands the 38.2mm to Φ by Φ 32.51mm in being about to; The outside 15 internal diameters expand the 46.4mm to Φ by Φ 39.37mm, and to the coal slurry runner, 14 inner wall surface spraying nickel-chromium-tungsten improved abrasion resistance during promptly middle pipe 2 reached; The nozzle exit flow velocity is reduced to 8.80m/s by original 12.4m/s under same coal water slurry flow like this, reduces by 28%.In 14 and the outside 15 between outer annular space reduce to 4mm by 5.8mm.Outer shroud oxygen flow speed is increased to 150m/s by 132m/s, reduces the deficiency of the atomizing effect that causes with in remedying 14 spouting velocity.
In high pressure water coal slurry gasifying process, high pressure oxygen and pressurized water coal slurry fully atomize in the vapourizing furnace combustion chamber through the coal water slurry process nozzle and partial oxidation reaction take place in 1300 ℃ the atmosphere, generate process gas, discharge thick slag and thin ash.What weigh its economy is effectively pneumatolytic part and slightly slag and thin grey carbon content in gas production rate, the process gas.
The nozzle of the utility model; Through the test under technology nozzle halfload and full load situation; The vapourizing furnace gas production rate is quite preceding with transformation; Validity period content is more than 78% in the process gas, and carbon content satisfies original design requirement in thick slag and the thin ash, and the technology nozzle was brought up to more than 60 days by original 35 days duration of service.
Claims (3)
1. high pressure water coal slurry gasifying process nozzle that can improve life cycle; It is characterized in that; Comprise that outer tube (3) one ends are connected with end cap c (6) by interior interior pipe (1), middle pipe (2) and outer tube (3) to outer setting, end cap c (6) center has the through hole a (7) that adapts with middle pipe (2) external diameter; Middle pipe (2) one ends pass from through hole a (7); Outer tube (3) is connected with flange c (8) near the outer wall of end cap c (6) through pipeline, and outer tube (3) the other end outer wall is provided with the cooling water coil (12) of duplex coiling
Middle pipe (2) one ends are connected with end cap b (5); End cap b (5) center has the through hole b (9) that adapts with interior pipe (1) external diameter; Interior pipe (1) one end passes from through hole b (9), and middle pipe (2) is connected with flange b (10) near the outer wall of end cap b (5) through pipeline
Interior pipe (1) one end is connected with end cap a (4), and interior pipe (1) is connected with flange a (11) near the outer wall of end cap c (4) through pipeline,
The other end of interior pipe (1), middle pipe (2) and outer tube (3) is connected with interior head (13), middle head (14) and the outside (15) respectively; Interior head (13), middle head (14) and end, the outside (15) are taper; Middle head (14) is concordant with end, the outside (15), and interior head (13) end and middle head (14) end form cavity.
2. nozzle according to claim 1 is characterized in that, middle pipe (2) and middle head (14) inner wall surface spraying nickel-chromium-tungsten coating.
3. nozzle according to claim 1 is characterized in that, middle head (14) is 1:1.21 with the internal diameter ratio of the outside (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220265206 CN202576364U (en) | 2012-06-06 | 2012-06-06 | High-pressure coal water slurry gasification process nozzle capable of prolonging usage period |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220265206 CN202576364U (en) | 2012-06-06 | 2012-06-06 | High-pressure coal water slurry gasification process nozzle capable of prolonging usage period |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202576364U true CN202576364U (en) | 2012-12-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220265206 Expired - Fee Related CN202576364U (en) | 2012-06-06 | 2012-06-06 | High-pressure coal water slurry gasification process nozzle capable of prolonging usage period |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202576364U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562508A (en) * | 2018-01-19 | 2018-09-21 | 南京工业大学 | Simple dam-overflowing scouring test device and test method |
| CN112725036A (en) * | 2019-10-28 | 2021-04-30 | 中国石油化工股份有限公司 | Mixed material feeding method, powdery material gasification method and gasification furnace |
-
2012
- 2012-06-06 CN CN 201220265206 patent/CN202576364U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562508A (en) * | 2018-01-19 | 2018-09-21 | 南京工业大学 | Simple dam-overflowing scouring test device and test method |
| CN112725036A (en) * | 2019-10-28 | 2021-04-30 | 中国石油化工股份有限公司 | Mixed material feeding method, powdery material gasification method and gasification furnace |
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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: 20121205 Termination date: 20180606 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |