CN102913904B - Load-adjustable multistage atomizing water-coal-slurry spraying gun is entered to starch in center, double flow road - Google Patents
Load-adjustable multistage atomizing water-coal-slurry spraying gun is entered to starch in center, double flow road Download PDFInfo
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- CN102913904B CN102913904B CN201210433339.1A CN201210433339A CN102913904B CN 102913904 B CN102913904 B CN 102913904B CN 201210433339 A CN201210433339 A CN 201210433339A CN 102913904 B CN102913904 B CN 102913904B
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Abstract
Load-adjustable multistage atomizing water-coal-slurry spraying gun is entered to starch in center, a kind of double flow road, comprise a water-coal-slurry pulp-inlet pipe, two steam steam inlet pipes and two lance heads, rifle head part comprises the compositions such as flow mixing device, inner core, urceolus, interior shower nozzle, impacting tube, impact block, nozzle, outer shower nozzle. Thereby double flow road can regulate respectively throttle flow to reach the function that regulates load and atomization quality, and water-coal-slurry reaches the object of abundant atomization by 3 steam fogs and 2 mechanical impact atomizations, simultaneously by regulating throttle flow can regulate the load of spray gun. Adopt multistage atomizing, atomization quality is guaranteed, is difficult for plug nozzle, and gas consumption rate is low, and atomized particle size is tiny, by regulating the proportionate relationship of throttle flow, reaches the object that regulates load and atomization quality. It is simple in structure, easy to use, and the thermal efficiency is high, and energy-saving and emission-reduction reduce fee of material.
Description
Technical field
The present invention relates to a kind of multistage atomizing water-coal-slurry spraying gun, load-adjustable multistage atomizing water-coal-slurry spraying gun is entered to starch in especially a kind of center, double flow road that is applicable to Industrial Stoves igniting
Background technology
Water-coal-slurry is a kind of novel coal-based fuel slurry, can replacing oil combustion, there is low pollution, the outstanding advantages that efficient, energy-conservation, operating cost is low. Be listed in " industry, product and the technology catalogue of current national emphasis encourage growth ". State Economic and Trade Commission explicitly calls for " adopting water-coal-slurry alternative fuel oil " in " Tenth Five-year plan of saving and alternatives fuel oil ", propose " Devoting Major Efforts To Developing COAL-WATER SLURRY TECHNOLOGY " in State Environmental Protection Administration's " national environmental protection 10th Five-Year Plan ". Adopt this new clean coal technology, both improved the thermal efficiency of boiler, can reduce again environmental pollution, can significantly reduce fuel cost for fuel oil user, reduce the burden on enterprises, economic benefit and obvious environment benefit, be applicable to business enterprise expand and use.
Water-coal-slurry is the coal by 70% left and right, and the fuel slurry that the water of 30% left and right and approximately 1% chemical addition agent are made can pumping, atomization and ignition. Calorific value is equivalent to the half of fuel oil.
The environmental protection characteristic of water-coal-slurry:
(1) select clean fine coal to do feed coal, have the feature of " two high two low ", fugitive constituent is high, calorific value is high; Ash content is low, sulfur is low, calorific value >=6800kcal/kg, fugitive constituent >=30%, ash content≤6%, sulfur≤0.5%. Reduce pollutant load from the source of fuel.
(2) water-coal-slurry burnout rate is high, and in combustion process, ash content forms porous frit, and average grain diameter is greater than 0.20 ㎜; greatly reduce the formation of flying dust; because exhaust gas temperature is compared with the low 1500C～2000C of fuel oil, reduce the quantity of the NOX discharging with flue gas simultaneously, be conducive to environmental protection.
(3) water-coal-slurry is deposited with storage tank, without coal yard, slag field, for condition has been created in cleaner production.
Water-coal-slurry spraying gun is the key equipment of coal-water fluid burner, and it makes it to become boiler oil by water-coal-slurry atomization.
Summary of the invention
The object of this invention is to provide center, a kind of double flow road and enter to starch load-adjustable multistage atomizing water-coal-slurry spraying gun, with improve boiler the thermal efficiency, reduce environmental pollution, significantly reduce fuel cost, reduce the burden on enterprises.
For achieving the above object, load-adjustable multistage atomizing water-coal-slurry spraying gun is entered to starch in center, double flow of the present invention road, comprise flow mixing device, the left end of flow mixing device is respectively equipped with water-coal-slurry pulp-inlet pipe, inside admission pipe and external admission pipe, water-coal-slurry pulp-inlet pipe is connected with the endoporus of flow mixing device, the front portion of water-coal-slurry pulp-inlet pipe is sleeved in inside admission pipe, and the front portion of inside admission pipe is sleeved in external admission pipe, on the sidewall of the termination of water-coal-slurry pulp-inlet pipe, inside admission pipe and the sidewall of external admission pipe, is respectively equipped with joint; The right-hand member of flow mixing device is respectively equipped with interior shower nozzle, front portion and is enclosed within inner core on interior shower nozzle and the urceolus of suit inner core, the front portion of inner core is bell mouth shape, horn mouth outer rim is fixed on the inwall of urceolus, on the horn mouth of inner core front portion, have multiple holes that are connected with interval of internal and external tube, described interior shower nozzle is X shape, two ends are horn mouth, in inner core, be provided with the impacting tube abutting against on interior shower nozzle horn mouth one end face, interior shower nozzle is by having the through hole in the interior shower nozzle outer wall of multiple connections and inner core inwall gap on the horn mouth of impacting tube side; The outer end of urceolus is provided with outer shower nozzle, and outer shower nozzle is provided with multiple nozzles, and the middle part of outer shower nozzle has centre bore, and centre bore inner side is provided with impact block; On described flow mixing device, have multiple excircle holes that are connected with external admission pipe and interval of internal and external tube respectively, and have multiple inner periphery holes that are connected with inside admission pipe and inner core respectively.
Described outer shower nozzle is provided with multiple nozzles and circularizes layout; Described urceolus is threaded with flow mixing device; Described outer shower nozzle is threaded with urceolus.
Beneficial effect: the present invention adopts two-way admission, central tube water inlet coal slurry, can regulate load easily, adopts the water-coal-slurry spraying gun of multistage atomizing mode. Lance head center slurry intake channel is daraf(reciprocal of farad) that spray orifice, adopt water-coal-slurry is carried out to multistage atomizing, atomizing type is: water-coal-slurry sprays through your spray orifice of daraf(reciprocal of farad), steam impringement water-coal-slurry stream, the mixed flow of steam and water-coal-slurry impacts impacting tube, then impacted by secondary steam, next mixed flow strikes again impact block, and last mixed flow is gone out nozzle and formed the very thin water-coal-slurry mist of atomization. Owing to there being 2 steam inlet pipes, so that regulate the amount of firsts and seconds atomization vapour, thereby double flow road can regulate respectively throttle flow to reach the function that regulates load and atomization quality, just can ensure atomization quality like this, is convenient to regulate load. Adopt multistage atomizing, atomization quality is guaranteed, is difficult for plug nozzle, and gas consumption rate is low, and atomized particle size is tiny, by regulating the proportionate relationship of throttle flow, reaches the object that regulates load and atomization quality. It is simple in structure, easy to use, and the thermal efficiency is high, and energy-saving and emission-reduction reduce fee of material, have practicality widely.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
In figure: 1-joint, 2-water-coal-slurry pulp-inlet pipe, 3-inside admission pipe, 4-external admission pipe, 5-flow mixing device, 6-inner core, 7-urceolus, shower nozzle in 8-, 9-impacting tube, 10-impact block, 11-nozzle, the outer shower nozzle of 12-.
Detailed description of the invention
Below in conjunction with accompanying drawing, one embodiment of the present of invention are further described:
Load-adjustable multistage atomizing water-coal-slurry spraying gun is entered to starch in center, double flow of the present invention road, comprise a water-coal-slurry pulp-inlet pipe 2, two steam steam inlet pipes and two shower nozzles, lance head is mainly made up of flow mixing device 5, inner core 6, urceolus 7, interior shower nozzle 8, impacting tube 9, impact block 10, nozzle 11, outer shower nozzle 12. The left end of flow mixing device 5 arranges respectively water-coal-slurry pulp-inlet pipe 2, inside admission pipe 3 and external admission pipe 4, water-coal-slurry pulp-inlet pipe 2 is connected with the endoporus of flow mixing device 5, the front portion of water-coal-slurry pulp-inlet pipe 2 is sleeved in inside admission pipe 3, the front portion of inside admission pipe 3 is sleeved in external admission pipe 4, on the sidewall of the termination of water-coal-slurry pulp-inlet pipe 2, inside admission pipe 3 and the sidewall of external admission pipe 4, is respectively equipped with joint 1; The right-hand member of flow mixing device 5 is respectively equipped with interior shower nozzle 8, front portion and is enclosed within inner core 6 on interior shower nozzle 8 and the urceolus 7 of suit inner core 6, and urceolus 7 is threaded with flow mixing device 5. The front portion of inner core 6 is bell mouth shape, horn mouth outer rim is fixed on the inwall of urceolus 7, on the horn mouth of inner core 6 front portions, have multiple holes that are connected with interval of internal and external tube, described interior shower nozzle 8 is X shape, two ends are horn mouth, in inner core 6, be provided with the impacting tube 9 abutting against on interior shower nozzle 8 horn mouth one end faces, interior shower nozzle 8 is by having the through hole in interior shower nozzle 8 outer walls of multiple connections and inner core 6 inwall gaps on the horn mouth of impacting tube 9 sides; The outer end of urceolus 7 is provided with outer shower nozzle 12, and outer shower nozzle 12 is threaded with urceolus 7. Outer shower nozzle 12 is provided with multiple nozzles 11 that circularize layout, and the middle part of outer shower nozzle 12 has centre bore, and centre bore inner side is provided with impact block 10; On described flow mixing device 5, have multiple excircle holes that are connected with external admission pipe 4 and interval of internal and external tube respectively, and have multiple inner periphery holes that are connected with inside admission pipe 3 and inner core 8 respectively.
Operation principle: center, double flow of the present invention road is entered to starch the employing of load-adjustable multistage atomizing water-coal-slurry spraying gun water-coal-slurry is carried out to multistage atomizing, atomizing type is: water-coal-slurry sprays through your spray orifice of daraf(reciprocal of farad), steam impringement water-coal-slurry stream, the mixed flow of steam and water-coal-slurry impacts impacting tube, then impacted by secondary steam, next mixed flow strikes again impact block, and last mixed flow is gone out nozzle and formed the very thin water-coal-slurry mist of atomization. This spray gun, by regulating the proportionate relationship of throttle flow, reaches the object that regulates load and atomization quality.
Claims (1)
1. load-adjustable multistage atomizing water-coal-slurry spraying gun is entered to starch in center, a double flow road, comprise flow mixing device (5), urceolus (7), the left end of described flow mixing device (5) is provided with water-coal-slurry pulp-inlet pipe (2), external admission pipe (4), and water-coal-slurry pulp-inlet pipe (2) is connected with the endoporus of flow mixing device (5), the outer end of described urceolus (7) is provided with outer shower nozzle (12), and the middle part of outer shower nozzle (12) has centre bore, and centre bore inner side is provided with impact block (10), outer shower nozzle (12) is provided with multiple nozzles (11), on described flow mixing device (5), have multiple excircle holes that are connected with external admission pipe (4) and interval of internal and external tube respectively, described urceolus (7) is threaded with flow mixing device (5), described outer shower nozzle (12) is threaded with urceolus (7), on the sidewall of the termination of water-coal-slurry pulp-inlet pipe (2), the sidewall of inside admission pipe (3) and external admission pipe (4), be respectively equipped with joint (1), described outer shower nozzle (12) is provided with multiple nozzles (11) and circularizes layout, it is characterized in that: between described water-coal-slurry pulp-inlet pipe (2) and external admission pipe (4), be provided with inside admission pipe (3), the front portion of water-coal-slurry pulp-inlet pipe (2) is sleeved in inside admission pipe (3), the front portion of inside admission pipe (3) is sleeved in external admission pipe (4), the right-hand member of flow mixing device (5) is provided with inner core (6), the front portion of inner core (6) is bell mouth shape, horn mouth outer rim is fixed on the inwall of urceolus (7), on the horn mouth of inner core (6) front portion, have multiple holes that are connected with interval of internal and external tube, in inner core (6), be provided with the interior shower nozzle (8) communicating with water-coal-slurry pulp-inlet pipe (2), described interior shower nozzle (8) is X shape, two ends are horn mouth, in inner core (6), be provided with the impacting tube (9) abutting against on interior shower nozzle (8) horn mouth one end face, interior shower nozzle (8) is by having the through hole in interior shower nozzle (8) outer wall of multiple connections and inner core (6) inwall gap on the horn mouth of impacting tube (9) side, on described flow mixing device (5), have multiple inner periphery holes that are connected with inside admission pipe (3) and inner core (6) respectively, water-coal-slurry is through the spray orifice ejection of shower nozzle (8), steam impringement water-coal-slurry stream, the mixed flow shock cylinder (9) of steam and water-coal-slurry, is impacted by secondary steam, next mixed flow clashes into again impact block (10), and last mixed flow is gone out nozzle (11) and formed the very thin water-coal-slurry mist of atomization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210433339.1A CN102913904B (en) | 2012-11-05 | 2012-11-05 | Load-adjustable multistage atomizing water-coal-slurry spraying gun is entered to starch in center, double flow road |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210433339.1A CN102913904B (en) | 2012-11-05 | 2012-11-05 | Load-adjustable multistage atomizing water-coal-slurry spraying gun is entered to starch in center, double flow road |
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| Publication Number | Publication Date |
|---|---|
| CN102913904A CN102913904A (en) | 2013-02-06 |
| CN102913904B true CN102913904B (en) | 2016-05-11 |
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| CN201210433339.1A Active CN102913904B (en) | 2012-11-05 | 2012-11-05 | Load-adjustable multistage atomizing water-coal-slurry spraying gun is entered to starch in center, double flow road |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2079257U (en) * | 1990-04-10 | 1991-06-19 | 华煤水煤浆技术联合中心 | Ramming type multistep water-coal mud atomizing nozzle |
| CN2306406Y (en) * | 1997-09-08 | 1999-02-03 | 华东理工大学 | Five-way load controllable water-coal fluid gasifying jet nozzle |
| CN2475475Y (en) * | 2000-11-29 | 2002-02-06 | 中国石化集团北京燕山石油化工有限公司 | Multi-steam channel rotary mixing type spraying nozzle for water coal slurry |
| CN2554476Y (en) * | 2002-07-25 | 2003-06-04 | 丁泽良 | Combined water coal slurry spray nozzle |
| JP3492002B2 (en) * | 1995-01-19 | 2004-02-03 | 三菱重工業株式会社 | Burner gun for liquid fuel |
| CN102466226A (en) * | 2010-11-11 | 2012-05-23 | 北京航天动力研究所 | Multi-angle impact atomization coal water slurry nozzle |
| CN202938293U (en) * | 2012-11-05 | 2013-05-15 | 徐州燃控科技股份有限公司 | Double-steam-passage central slurry intake load-adjustable multi-stage-atomization coal water slurry spray gun |
-
2012
- 2012-11-05 CN CN201210433339.1A patent/CN102913904B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2079257U (en) * | 1990-04-10 | 1991-06-19 | 华煤水煤浆技术联合中心 | Ramming type multistep water-coal mud atomizing nozzle |
| JP3492002B2 (en) * | 1995-01-19 | 2004-02-03 | 三菱重工業株式会社 | Burner gun for liquid fuel |
| CN2306406Y (en) * | 1997-09-08 | 1999-02-03 | 华东理工大学 | Five-way load controllable water-coal fluid gasifying jet nozzle |
| CN2475475Y (en) * | 2000-11-29 | 2002-02-06 | 中国石化集团北京燕山石油化工有限公司 | Multi-steam channel rotary mixing type spraying nozzle for water coal slurry |
| CN2554476Y (en) * | 2002-07-25 | 2003-06-04 | 丁泽良 | Combined water coal slurry spray nozzle |
| CN102466226A (en) * | 2010-11-11 | 2012-05-23 | 北京航天动力研究所 | Multi-angle impact atomization coal water slurry nozzle |
| CN202938293U (en) * | 2012-11-05 | 2013-05-15 | 徐州燃控科技股份有限公司 | Double-steam-passage central slurry intake load-adjustable multi-stage-atomization coal water slurry spray gun |
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| CN102913904A (en) | 2013-02-06 |
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Address after: 221004 No. 12 Yang Shan Road, Xuzhou Economic Development Zone, Jiangsu, China Applicant after: XUZHOU KERONG ENVIRONMENTAL RESOURCES CO., LTD. Address before: 221004 No. 12 Yang Shan Road, Xuzhou Economic Development Zone, Jiangsu, China Applicant before: Xuzhou Combustion Control Research Institute Co., Ltd. |
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Effective date of registration: 20200415 Address after: 221004 No. 12 Yang Shan Road, Xuzhou Economic Development Zone, Jiangsu, China Patentee after: XUZHOU COMBUSTION CONTROL RESEARCH INSTITUTE Co.,Ltd. Address before: 221004 No. 12 Yang Shan Road, Xuzhou Economic Development Zone, Jiangsu, China Patentee before: XUZHOU KERONG ENVIRONMENTAL RESOURCES Co.,Ltd. |