CN105368501A - Protecting mechanism of technological burner applicable to entrained-flow bed coal gasifier - Google Patents
Protecting mechanism of technological burner applicable to entrained-flow bed coal gasifier Download PDFInfo
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- CN105368501A CN105368501A CN201410440639.1A CN201410440639A CN105368501A CN 105368501 A CN105368501 A CN 105368501A CN 201410440639 A CN201410440639 A CN 201410440639A CN 105368501 A CN105368501 A CN 105368501A
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Abstract
The invention provides a protecting mechanism of a technological burner applicable to an entrained-flow bed coal gasifier. The protecting mechanism comprises a cooling water coil 201, a cooling water disc 207, a cooling water inlet pipe 205 and a cooling water outlet pipe 206. The cooling water coil 201 is attached to the outer side of a shell of the technological burner in a surrounding mode. The cooling water disc 207 is arranged on the rear side of the head end of the shell of the technological burner in a surrounding mode. The outer diameter of the cooling water disc 207 is larger than the largest outer diameter of the ring formed when the cooling water coil 201 surrounds the shell of the technological burner. The cooling water inlet pipe 205 and the cooling water outlet pipe 206 are connected to a cooling water inlet and a cooling water outlet of the cooling water disc 207 respectively, and the cooling water inlet and the cooling water outlet are formed in a face unexposed to fire of the cooling water disc 207. According to the protecting mechanism of the technological burner, good heat insulation protection is provided for the head end of the burner, the cooling water coil and a welding seam when the technological burner runs, and the service life of the burner is greatly prolonged.
Description
Technical field
The present invention relates to air-flow bed coal-gasification furnace apparatus field, specifically, the present invention relates to a kind of protection mechanism of process burner of coal gasifier.
Background technology
The process burner head of the air-flow bed coal-gasification stove applied at present is that one reduces structure: cooling water coil is around the outer endless tube outer wall of burner and reduce with burner nozzle and form the end face structure being less than burner cooling water coil diameter, and at burner, cooling water cavity is set to fire end portion, its water coolant is by being welded to gangway turnover cooling water cavity (as shown in Figure 1) being arranged on cooling water cavity sidewall, under actual working state, because burner head and coil pipe end face are in the hot environment of more than 1300 DEG C for a long time, the life-span of process burner is generally at about 2-3 month, therefore whole gasification system needs to stop stove, the extreme influence economic benefit of production system.In addition, because its cooling water intakeoutfall is at the sidewall of the cooling water cavity of burner, under the weld seam of cooling water coil and burner head is directly exposed to high temperature, is so extremely unfavorable for keeping the firm of weld seam, easily causes weld cracking, cooling water pipeline thinning.Have lime-ash during process burner long operational time and stick in coil pipe and burner head, when process burner is extracted in parking, cooling water coil is often pulled off by related, and therefore also often cause needs to change cooling water coil simultaneously.
Publication number is that the application for a patent for invention of CN102250644A discloses a kind of process burner of water-coal-slurry gasification furnace, this patent by arrange on middle shower nozzle communicate with outer shower nozzle chamber for the oxygen introduction part in shower nozzle chamber during the oxygen in outer shower nozzle chamber is imported, described introduction part is made up of entrance hole and buffering ring, entrance hole is communicated with outer shower nozzle chamber and buffering ring, buffering ring communicates with middle shower nozzle chamber, by this kind of structure design to reach the wearing and tearing reducing coal water slurry centering shower nozzle chamber inner wall.But this application for a patent for invention does not still solve the problem that the undesirable and cooling water coil of process burner cooling performance and burner header weld easily ftracture.
Publication number is that the application for a patent for invention of CN103333717A discloses a kind of vapourizing furnace process burner structure being provided with refractory insulating layer, it is provided with the refractory insulating layer suitable with the front end face of burner on the front end face of burner, and described thermofin connects the front end face of burner by multiple spaced slag nail.Although; its end being burner by thermofin provides thermal insulation protection; be conducive to the life-span extending burner; but; cooling water cavity still only has cooling performance among a small circle to the head of process burner; and under cooling water coil and weld seam be still also directly exposed to the high temperature of vapourizing furnace, do not solve weld seam that cooling water cavity connects water coolant inlet/outlet pipe at high temperature easily cracking and cooling water coil by problems such as temperatures involved.
Summary of the invention
For shortcoming of the prior art, in order to overcome the deficiency of the structure of process burner in prior art, the present invention proposes a kind of novel protected mechanism of process burner head, by arranging water coolant disk by cooling water coil, the weld seam of burner head and the high temperature of vapourizing furnace separate, and can further the protection mechanism of process burner and this process burner be placed under the protection of silicon carbide (SiC) refractory masses, not only greatly extend the life-span of burner, the weld seam of cooling water coil and cooling water intakeoutfall pipe and process burner can also be protected, prevent weld seam thinning or cracking under the barbecue of long term high temperature, burner cooling water coil and weld seam when gasifying process system shutdown Replacement procedure burner is avoided to be pulled off, thus significantly reduce maintenance cost.
For achieving the above object, the invention provides following technical scheme:
A kind of protection mechanism being applicable to the process burner of air-flow bed coal-gasification stove; comprise cooling water coil 201 and water coolant disk 207, entrance of cooling water pipe 205 and cooling water outlet pipe 206; described cooling water coil 201 is fitted in the outside of process burner shell around ground; described water coolant disk 207 is welded on the head end outer side of described process burner around ground, and described water coolant disk 207 external diameter is greater than the external diameter of the maximum loop that described cooling water coil 201 is formed around process burner shell.
According in one embodiment of the invention, in order to better protect the weld seam 209 of entrance of cooling water pipe 205 and cooling water outlet pipe 206 and water coolant disk 207, respectively the entrance of cooling water be connected with entrance of cooling water pipe 205 and cooling water outlet pipe 206 and cooling water outlet are arranged on the back of the body fire face of water coolant disk 207, with by cooling water coil 201, burner header weld 209 separates with the high temperature of vapourizing furnace, the weld seam 209 of protection cooling water coil 201 and coil pipe, prevent weld seam 209 thinning or cracking under the barbecue of long term high temperature, when avoiding gasifying process system shutdown Replacement procedure burner, burner cooling water coil 201 and weld seam 209 are pulled off.
In another embodiment, on fire end outer wall, carborundum refractory layer 301 is provided with also at process burner and water coolant disk 207 according to process burner protection mechanism of the present invention.
In still another embodiment, also at described water coolant disk, the outer wall of fire end face and sidewall is provided with bitch 208 according to process burner protection mechanism of the present invention.Described water coolant disk 207 and bitch 208 are made up of nickel-chromium-iron-based solid solution strengthened alloy material, is preferably INCONEL600.And carborundum refractory layer 301 can be formed by the carborundum refractory of building tamping around bitch.
Burner head, cooling water coil and weld seam when the protection mechanism of process burner provided by the invention makes process burner run all obtain good thermal insulation protection and better cooling performance; therefore; substantially prolongs the life-span of burner; decrease the materials consumption changing burner nozzle and cooling water coil; also avoid cooling water coil and bead contact high temperature simultaneously; avoid the cooling water coil when burner is pulled out in process system parking to be pulled off by related, effectively reduce production and maintenance cost.
Accompanying drawing explanation
Fig. 1 is the section of structure of existing process burner.
Fig. 2 is the section of structure of an embodiment of protection mechanism according to process burner of the present invention.
Fig. 3 is the section of structure of another embodiment of protection mechanism according to process burner of the present invention, is provided with carborundum refractory layer in this embodiment, to strengthen the effect of thermal insulation protection further.
description of reference numerals
101,201-cooling water coil, 102, nozzle in 202-burner, 103,203-burner inner nozzle, 104,204-burner outer nozzle, 105,205-entrance of cooling water pipe, 106,206-cooling water outlet pipe, 107-cooling water cavity, 207-water coolant disk, 208-bitch, 209-weld seam, 301-carborundum refractory layer.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment and accompanying drawing, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 1 shows the sectional view of an embodiment of the process burner of prior art, its structure formation is concentric three sleeve pipes, outer nozzle 104, middle nozzle 102 and inner nozzle 103 from outside to inside successively, the exit design of process burner nozzle becomes reducing form, is conducive to accelerating the gas of ejection.Cooling water coil 101 around and be fitted in the outer side of process burner outer nozzle 104, and to reduce along with process burner nozzle.Flammable atomization mixed gas is injected to vapourizing furnace from burner and reacts, and the temperature when reacting, usually up to more than 1300 DEG C, in order to avoid process burner is burned, just needs to arrange refrigerating unit.The refrigerating unit of the process burner of prior art generally includes cooling water coil 101 and cooling water cavity 107, cooling water coil 101 around and be welded on process burner outer side, cooling water cavity 107 is then normally welded to the less cavity being looped around process burner head end of process burner shell, only for the head end of process for cooling burner.Water coolant just flows into cooling water cavity 107 by entrance of cooling water pipe 105, flowed out by cooling water outlet pipe 106 again, and entrance of cooling water pipe 105 as shown in Figure 1 and cooling water outlet pipe 106 are welded on cooling water inlet and the cooling water outlet place of cooling water cavity 107 usually respectively, obviously, the cooling water inlet of such setting and cooling water outlet are very near vapourizing furnace, cause the weld seam of entrance of cooling water pipe and cooling water outlet pipe easily to ftracture owing to being subject to the impact of high temperature for a long time, and cooling water coil is also thinning under the effect of high temperature.If process burner long-time running, also have lime-ash and stick in coil pipe and process burner head, usually when extracting process burner, causing cooling water coil also to be pulled off by related, causing maintenance cost to rise.
In order to the technological deficiency that the process burner solving above-mentioned prior art exists, the invention provides a kind of protection mechanism of process burner, further illustrate the present invention referring now to Fig. 2.
Fig. 2 shows the sectional view according to one embodiment of the invention, wherein, jet pipe 202 in burner outer nozzle 204, burner, burner inner nozzle 203 can be set to according to prior art the streamlined pattern that is coaxially nested with from the inside to the outside, also can adopt the structural style that other is suitable for.As shown in Figure 2; cooling water coil 201 is around the outer side of process burner outer nozzle 204; and at process burner to fire end; around exporting to fire end of process burner, water coolant disk 207 is set; for realizing thermal insulation protection and better cooling performance; the external diameter arranging this water coolant disk 207 is greater than the external diameter of the maximum loop that cooling water coil 201 is formed around process burner shell, and the internal ring wall of water coolant disk 207 is fitted by welding with the shell to fire end of process burner.The back of the body fire face of this water coolant disk 207 is provided with the water coolant gangway be connected with entrance of cooling water pipe 205 and cooling water outlet pipe 206 respectively, to protect weld seam 209 and cooling water coil 201 better, as shown in Figure 2.
For strengthening thermal insulation protection and the cooling performance of the protection mechanism of process burner provided by the invention further, can applying to fire end, water coolant disk 207 side towards the fire and side-walls or building the carborundum refractory layer of tamping at process burner.
As illustrated in fig. 2; the side towards the fire and sidewall of water coolant disk 207 can be provided with bitch 208; to form the space of tridimensional network on the side towards the fire that this bitch 208 can be arranged on water coolant disk 207 by welding; ramming carborundum refractory is built in this space; the refractory masses that refractory materials is formed more firmly is combined on water coolant disk, thus strengthens the protected effect of refractory masses.The material of bitch 208 and the material of water coolant disk are all INCONEL600 alloy material.
As shown in Figure 3, around bitch, build tamping carborundum refractory form carborundum refractory layer 301.
The above embodiment only have expressed embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (7)
1. one kind is applicable to the protection mechanism of the process burner of air-flow bed coal-gasification stove; comprise cooling water coil (201), water coolant disk (207), entrance of cooling water pipe (205) and cooling water outlet pipe (206); described cooling water coil (201) is fitted in the outside of process burner shell around ground; described water coolant disk (201) is welded on the head end outer side of described process burner around ground, described water coolant disk (207) external diameter is greater than the maximum outside diameter of the ring that described cooling water coil (201) is formed around process burner shell.
2. the protection mechanism of process burner as claimed in claim 1; it is characterized in that; described entrance of cooling water pipe (205) and cooling water outlet pipe (206) are communicated with entrance of cooling water and the cooling water outlet of described water coolant disk (207) respectively, and described entrance of cooling water and cooling water outlet are arranged on the back of the body fire face of described water coolant disk (207).
3. the protection mechanism of process burner as claimed in claim 1 or 2, is characterized in that, the outer wall of described water coolant disk side towards the fire and sidewall is provided with bitch (208).
4. the protection mechanism of process burner as claimed in claim 3, is characterized in that, the carborundum refractory of building tamping around described bitch (208) forms carborundum refractory layer (301).
5. the operator guards of process burner as claimed in claim 4, it is characterized in that, described water coolant disk (207) and bitch (208) are made up of nickel-chromium-iron-based solid solution strengthened alloy material.
6. the operator guards of process burner as claimed in claim 5, it is characterized in that, described nickel-chromium-iron-based solid solution strengthened alloy material is INCONEL600.
7. the protection mechanism of the process burner according to any one of claim 1-3, is characterized in that, fire end, water coolant disk side towards the fire and side-walls being provided with coating or building the carborundum refractory layer (301) of tamping at process burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410440639.1A CN105368501B (en) | 2014-09-01 | 2014-09-01 | A kind of protection mechanism of process burner suitable for air-flow bed coal-gasification stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410440639.1A CN105368501B (en) | 2014-09-01 | 2014-09-01 | A kind of protection mechanism of process burner suitable for air-flow bed coal-gasification stove |
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| Publication Number | Publication Date |
|---|---|
| CN105368501A true CN105368501A (en) | 2016-03-02 |
| CN105368501B CN105368501B (en) | 2018-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410440639.1A Expired - Fee Related CN105368501B (en) | 2014-09-01 | 2014-09-01 | A kind of protection mechanism of process burner suitable for air-flow bed coal-gasification stove |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106315597A (en) * | 2016-08-23 | 2017-01-11 | 黄冈师范学院 | Fly ash comprehensive treatment and utilization method and device |
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| CN1246141A (en) * | 1997-01-31 | 2000-03-01 | 德士古发展公司 | Fuel injector nozzle with preheat sheath for reducing thermal shock damage |
| CN1311712A (en) * | 1998-08-04 | 2001-09-05 | 德士古发展公司 | Portective refractory shield for a gasifier |
| US20030197071A1 (en) * | 2002-04-18 | 2003-10-23 | Whittaker Gary Scott | Coal gasification feed injector shield with integral corrosion barrier |
| CN201280543Y (en) * | 2008-10-08 | 2009-07-29 | 兖矿国泰化工有限公司 | Technical burner for water-coal-slurry gasification furnace |
| CN202265552U (en) * | 2011-10-13 | 2012-06-06 | 东方电气集团东方锅炉股份有限公司 | Burner for gasification furnace |
| CN102492479A (en) * | 2011-12-28 | 2012-06-13 | 上海锅炉厂有限公司 | Three-channel slurry fuel gasification burner |
| CN103333717A (en) * | 2013-06-13 | 2013-10-02 | 中石化宁波工程有限公司 | Process burner structure of gasification furnace |
| CN203319949U (en) * | 2013-06-08 | 2013-12-04 | 北京神雾环境能源科技集团股份有限公司 | Low-pressure powdered coal gasification burner |
| CN204185437U (en) * | 2014-09-01 | 2015-03-04 | 大唐国际化工技术研究院有限公司 | A kind of protection mechanism being applicable to the process burner of air-flow bed coal-gasification stove |
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2014
- 2014-09-01 CN CN201410440639.1A patent/CN105368501B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1246141A (en) * | 1997-01-31 | 2000-03-01 | 德士古发展公司 | Fuel injector nozzle with preheat sheath for reducing thermal shock damage |
| CN1311712A (en) * | 1998-08-04 | 2001-09-05 | 德士古发展公司 | Portective refractory shield for a gasifier |
| US20030197071A1 (en) * | 2002-04-18 | 2003-10-23 | Whittaker Gary Scott | Coal gasification feed injector shield with integral corrosion barrier |
| CN201280543Y (en) * | 2008-10-08 | 2009-07-29 | 兖矿国泰化工有限公司 | Technical burner for water-coal-slurry gasification furnace |
| CN202265552U (en) * | 2011-10-13 | 2012-06-06 | 东方电气集团东方锅炉股份有限公司 | Burner for gasification furnace |
| CN102492479A (en) * | 2011-12-28 | 2012-06-13 | 上海锅炉厂有限公司 | Three-channel slurry fuel gasification burner |
| CN203319949U (en) * | 2013-06-08 | 2013-12-04 | 北京神雾环境能源科技集团股份有限公司 | Low-pressure powdered coal gasification burner |
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| CN204185437U (en) * | 2014-09-01 | 2015-03-04 | 大唐国际化工技术研究院有限公司 | A kind of protection mechanism being applicable to the process burner of air-flow bed coal-gasification stove |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106315597A (en) * | 2016-08-23 | 2017-01-11 | 黄冈师范学院 | Fly ash comprehensive treatment and utilization method and device |
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| CN105368501B (en) | 2018-11-09 |
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Granted publication date: 20181109 Termination date: 20200901 |