CN102913905B - Double flow road outer tube enters to starch load-adjustable multistage atomizing water-coal-slurry spraying gun - Google Patents
Double flow road outer tube enters to starch load-adjustable multistage atomizing water-coal-slurry spraying gun Download PDFInfo
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- CN102913905B CN102913905B CN201210433424.8A CN201210433424A CN102913905B CN 102913905 B CN102913905 B CN 102913905B CN 201210433424 A CN201210433424 A CN 201210433424A CN 102913905 B CN102913905 B CN 102913905B
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Abstract
A kind of double flow road outer tube enters to starch load-adjustable multistage atomizing water-coal-slurry spraying gun, comprise a water-coal-slurry pulp-inlet pipe, two steam steam inlet pipes and lance head, rifle head part comprises the compositions such as flow mixing device, Y shape shower nozzle, impacting tube, inner core, urceolus, nozzle, outer shower nozzle. Water-coal-slurry reaches the object of abundant atomization by mixed atomization in the atomization of Y shape shower nozzle, mechanical impact atomization and steam, simultaneously by regulating throttle flow can regulate the load of spray gun. Thereby double flow road can regulate respectively throttle flow to reach the function that regulates load and atomization quality. Be convenient to regulate the amount of firsts and seconds atomization vapour, just can ensure atomization quality, be 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. 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, especially a kind of double flow road outer tube that is applicable to Industrial Stoves igniting enters to starch load-adjustable multistage atomizing water-coal-slurry spraying gun.
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, and 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 a kind of double flow road outer tube 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, double flow of the present invention road outer tube enters to starch load-adjustable multistage atomizing water-coal-slurry spraying gun, comprise flow mixing device, the left end of flow mixing device is respectively equipped with inside admission pipe, water-coal-slurry pulp-inlet pipe and external admission pipe, the inside suit of water-coal-slurry pulp-inlet pipe stretches out the inside admission pipe of its outer end, the outside suit external admission pipe of water-coal-slurry pulp-inlet pipe, is respectively equipped with joint on the sidewall of the termination of inside admission pipe, the sidewall of water-coal-slurry pulp-inlet pipe and external admission pipe; The middle part of flow mixing device is provided with Y shape shower nozzle, the right-hand member of flow mixing device is provided with the urceolus that front portion is enclosed within the inner core on Y shape shower nozzle and is set with 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, the inwall of inner core is provided with impacting tube, and the outer end of urceolus is provided with outer shower nozzle, and outer shower nozzle is provided with multiple nozzles; 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 water-coal-slurry pulp-inlet 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, the outer water inlet tube coal slurry on vapour road, center, can regulate load, the water-coal-slurry spraying gun that chopped-off head atomization adopts the multistage atomizing mode of Y type atomizing type, carries out multistage atomizing to water-coal-slurry, the admission of lance head center, outer tube enter slurry, one-level atomization adopts Y shape spray orifice, and water-coal-slurry sprays through Y shape spray orifice, the first multiple impact impacting tube of mixed flow, and then with steam in mixed, last mixed flow is gone out nozzle and is formed the very thin water-coal-slurry mist of atomization. Owing to there being two steam inlet pipes, so that regulate the amount of firsts and seconds atomization vapour, just can ensure atomization quality, be 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. Thereby double flow road can regulate respectively throttle flow to reach the function that regulates load and atomization quality. Spray gun can, by regulating the proportionate relationship of throttle flow, reach 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.
Figure of description
Fig. 1 is structural representation of the present invention.
In figure: 1-joint, 2-inside admission pipe, 3-water-coal-slurry pulp-inlet pipe, 4-external admission pipe, 5-flow mixing device, 6-Y shape shower nozzle, 7-impacting tube, 8-inner core, 9-urceolus, 10-nozzle, the outer shower nozzle of 11-.
Detailed description of the invention
Below in conjunction with accompanying drawing, one embodiment of the present of invention are further described:
Double flow of the present invention road outer tube enters to starch load-adjustable multistage atomizing water-coal-slurry spraying gun, comprise a water-coal-slurry pulp-inlet pipe 3, two steam steam inlet pipes and two shower nozzles, lance head is made up of flow mixing device 5, Y shape shower nozzle 6, impacting tube 7, inner core 8, urceolus 9, nozzle 10, outer shower nozzle 11. The left end of described flow mixing device 5 is respectively equipped with inside admission pipe 2, water-coal-slurry pulp-inlet pipe 3 and external admission pipe 4, the inside suit of water-coal-slurry pulp-inlet pipe 3 stretches out the inside admission pipe 2 of its outer end, the outside suit external admission pipe 4 of water-coal-slurry pulp-inlet pipe 3, is respectively equipped with joint 1 on the sidewall of the termination of inside admission pipe 2, the sidewall of water-coal-slurry pulp-inlet pipe 3 and external admission pipe 4; The middle part of flow mixing device 5 is provided with Y shape shower nozzle 6, and the right-hand member of flow mixing device 5 is provided with the urceolus 9 that front portion is enclosed within the inner core 8 on Y shape shower nozzle 6 and is set with inner core 8, and described urceolus 9 is threaded with flow mixing device 5. The front portion of inner core 8 is bell mouth shape, horn mouth outer rim is fixed on the inwall of urceolus 9, has multiple holes that are connected with interval of internal and external tube on the horn mouth of inner core 8 front portions, and the inwall of inner core 8 is provided with impacting tube 7, the outer end of urceolus 9 is provided with outer shower nozzle 11, and outer shower nozzle 11 is threaded with urceolus 9. Outer shower nozzle 11 is provided with multiple nozzles 10, and multiple nozzles 10 circularize layout. 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 water-coal-slurry pulp-inlet pipe 3 and inner core 8 respectively. Water-coal-slurry sprays through Y shape spray orifice 6, the first multiple impact impacting tube 7 of mixed flow, and then with steam in mixed, last mixed flow is gone out nozzle 10 and is formed the water-coal-slurry mist that atomization is very thin.
Claims (1)
1. a double flow road outer tube enters to starch load-adjustable multistage atomizing water-coal-slurry spraying gun, comprise flow mixing device (5), water-coal-slurry pulp-inlet pipe (3), external admission pipe (4), urceolus (9), the outer end of urceolus (9) is provided with outer shower nozzle (11), and outer shower nozzle (11) is provided with multiple nozzles (10), described urceolus (9) is threaded with flow mixing device (5), described outer shower nozzle (11) is threaded with urceolus (9), the left end of described flow mixing device (5) is respectively equipped with inside admission pipe (2), water-coal-slurry pulp-inlet pipe (3) and external admission pipe (4), the inside suit of water-coal-slurry pulp-inlet pipe (3) stretches out the inside admission pipe (2) of its outer end, the outside suit external admission pipe (4) of water-coal-slurry pulp-inlet pipe (3), is respectively equipped with joint (1) on the sidewall of the termination of inside admission pipe (2), the sidewall of water-coal-slurry pulp-inlet pipe (3) and external admission pipe (4), it is characterized in that: described flow mixing device (5) is provided with the Y shape shower nozzle (6) being connected with inside admission pipe (2), in described urceolus (9), be provided with cover and be buckled in the inner core (8) on Y shape shower nozzle (6), the inwall of inner core (8) is provided with impacting tube (7), the front portion of inner core (8) is bell mouth shape, and urceolus forms gap between (9), inner core (8) horn mouth outer rim is fixed on the inwall shoulder of urceolus (9), on the horn mouth of inner core (8) front portion, have the logical steam vent of multiple normal direction, on described flow mixing device (5), have the excircle hole being connected with external admission pipe (4) and interval of internal and external tube respectively, on the sidewall of described Y shape shower nozzle (6), have multiple normal direction through holes that communicate with Y shape spray orifice, on described flow mixing device (5), have the inner periphery hole that multiple spaces that form with Y shape shower nozzle (6) with water-coal-slurry pulp-inlet pipe (3) and inner core (8) respectively communicate, water-coal-slurry enters from water-coal-slurry pulp-inlet pipe (3), inner periphery hole on flow mixing device (5) enters, enter through the normal direction through hole communicating with Y shape spray orifice again, after mixing, the steam flow entering with steam inlet pipe (2) sprays from Y shape shower nozzle (6), through the first multiple impact impacting tube of mixed flow (7), and then leading to the multiple normal direction from the horn mouth of inner core (8) front portion interior the mixing of steam that steam vent enters, last mixed flow is gone out the very thin water-coal-slurry mist of nozzle (10) formation atomization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210433424.8A CN102913905B (en) | 2012-11-05 | 2012-11-05 | Double flow road outer tube enters to starch load-adjustable multistage atomizing water-coal-slurry spraying gun |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210433424.8A CN102913905B (en) | 2012-11-05 | 2012-11-05 | Double flow road outer tube enters to starch load-adjustable multistage atomizing water-coal-slurry spraying gun |
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| Publication Number | Publication Date |
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| CN102913905A CN102913905A (en) | 2013-02-06 |
| CN102913905B true CN102913905B (en) | 2016-05-11 |
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| CN201210433424.8A Active CN102913905B (en) | 2012-11-05 | 2012-11-05 | Double flow road outer tube enters to starch load-adjustable multistage atomizing water-coal-slurry spraying gun |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191928B (en) * | 2017-06-23 | 2023-09-22 | 山西大学 | Multistage atomization oil gun |
| CN107726312B (en) * | 2017-10-19 | 2024-03-22 | 山东辰跃节能科技有限公司 | Two-stage steam atomization oil gun |
Citations (6)
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|---|---|---|---|---|
| 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 |
| JP3492002B2 (en) * | 1995-01-19 | 2004-02-03 | 三菱重工業株式会社 | Burner gun for liquid fuel |
| CN101650030A (en) * | 2009-09-15 | 2010-02-17 | 浙江百能科技有限公司 | Combined low-consumption multistage supersonic speed water-coal-slurry atomizing nozzle |
| CN202938294U (en) * | 2012-11-05 | 2013-05-15 | 徐州燃控科技股份有限公司 | Load-adjustable multi-stage-atomization coal water slurry spray gun with double steam passages and outer slurry inlet pipe |
-
2012
- 2012-11-05 CN CN201210433424.8A patent/CN102913905B/en active Active
Patent Citations (6)
| 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 |
| CN101650030A (en) * | 2009-09-15 | 2010-02-17 | 浙江百能科技有限公司 | Combined low-consumption multistage supersonic speed water-coal-slurry atomizing nozzle |
| CN202938294U (en) * | 2012-11-05 | 2013-05-15 | 徐州燃控科技股份有限公司 | Load-adjustable multi-stage-atomization coal water slurry spray gun with double steam passages and outer slurry inlet pipe |
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| CN102913905A (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: 20200414 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. |
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