CN102913905A - Dual-steam-passage outer-pipe-admission load-adjustable multi-stage atomizing water-coal-slurry spray gun - Google Patents
Dual-steam-passage outer-pipe-admission load-adjustable multi-stage atomizing water-coal-slurry spray gun Download PDFInfo
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- CN102913905A CN102913905A CN2012104334248A CN201210433424A CN102913905A CN 102913905 A CN102913905 A CN 102913905A CN 2012104334248 A CN2012104334248 A CN 2012104334248A CN 201210433424 A CN201210433424 A CN 201210433424A CN 102913905 A CN102913905 A CN 102913905A
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Abstract
A dual-steam-passage outer-pipe-admission load-adjustable multi-stage atomizing water-coal-slurry spray gun comprises a water-coal-slurry admission tube, two steam admission tubes and a spray gun head, wherein the gun head part comprises a mixer, a Y-shaped jet head, an impact barrel, an inner barrel, an outer barrel, a nozzle, an outer jet head and the like. The water-coal-slurry is atomized by the Y-shaped jet head and is subjected to mechanical impact atomization and steam inner mixing atomization, so that the purpose of sound atomization is achieved, and meanwhile, the steam admission quantity can be adjusted to regulate the load of the spray gun. Dual steam passages can respectively adjust the steam admission quantity to perform the load and atomization quality adjustment functions. The primary and secondary atomization quantity can be conveniently adjusted to ensure the atomization quality and facilitate load adjustment. As the multi-stage atomization is adopted, the atomization quality can be guaranteed, the nozzle has low probability of blockage, the steam consumption is low and the atomization granularity is small. The dual-steam-passage outer-pipe-admission load-adjustable multi-stage atomizing water-coal-slurry spray gun has the advantages of simple structure, convenience in use, high heat efficiency, energy conservation and emission reduction, and material expense reduction.
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 the Industrial Stoves igniting advances 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, but replacing oil combustion, have low pollute, the outstanding advantages that efficient, energy-conservation, operating cost is low.Be listed in " industry of current national emphasis encourage growth, product and technology catalogue ".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 in State Environmental Protection Administration's " national environmental protection 10th Five-Year Plan " " Devoting Major Efforts To Developing COAL-WATER SLURRY TECHNOLOGY ".Adopt this new clean coal technology, both improved the thermal efficiency of boiler, again can environmental contamination reduction, can the decrease fuel cost for the fuel oil user, to reduce the burden on enterprises, economic benefit and obvious environment benefit are fit to business enterprise expand and use.
Water-coal-slurry is by about 70% coal, and about 30% water and the about fuel slurry made of 1% chemical addition agent can pumpings, atomizing and ignition, and calorific value is equivalent to half of fuel oil.
The environmental protection characteristic of water-coal-slurry:
(1) select clean fine coal to do feed coal, have the characteristics of " two high two is low ", namely 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%.Reduced pollutant load from the source of fuel.
(2) the water-coal-slurry burnout rate is high, and ash content forms porous frit in combustion process, and average grain diameter is greater than 0.20 ㎜; greatly reduced the formation of flying dust; because exhaust gas temperature than the low 1500C～2000C of fuel oil, reduces the quantity of the NOX that discharges with flue gas, be conducive to environmental protection simultaneously.
(3) water-coal-slurry is deposited with storage tank, need not 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 with the water-coal-slurry atomizing.
Summary of the invention
The purpose of this invention is to provide a kind of double flow road outer tube and advance to starch load-adjustable multistage atomizing water-coal-slurry spraying gun, to improve the thermal efficiency, environmental contamination reduction, the decrease fuel cost of boiler, reduce the burden on enterprises.
For achieving the above object, double flow of the present invention road outer tube advances 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, water-coal-slurry pulp-inlet pipe and the sidewall of external admission pipe; The middle part of flow mixing device is provided with the Y shape shower nozzle, the right-hand member of flow mixing device is provided with the urceolus that the front portion is enclosed within the inner core on the Y shape shower nozzle and is set with inner core, the front portion of inner core is bell mouth shape, the horn mouth outer rim is fixed on the inwall of urceolus, have a plurality of holes that are connected with interval of internal and external tube on the horn mouth of inner core front portion, 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 a plurality of nozzles; Have a plurality of excircle holes that are connected with external admission pipe and interval of internal and external tube respectively on the described flow mixing device, and have a plurality of inner periphery holes that are connected with water-coal-slurry pulp-inlet pipe and inner core respectively.
Described outer shower nozzle is provided with a plurality of 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 the two-way admission, the outer water inlet tube coal slurry on vapour road, center, can regulate load, the water-coal-slurry spraying gun that the multistage atomizing mode of Y type atomizing type is adopted in the chopped-off head atomizing carries out multistage atomizing to water-coal-slurry, the admission of lance head center, outer tube advance slurry, the Y shape spray orifice is adopted in the one-level atomizing, and water-coal-slurry sprays through the Y shape spray orifice, mixed flow elder generation multiple impact impacting tube, and then with steam in mixed, last mixed flow is gone out nozzle and is formed the very thin water-coal-slurry mist of atomizing.Because two steam inlet pipes being arranged, institute just can guarantee atomization quality so that regulate the amount of firsts and seconds atomizing vapour, is convenient to regulate and loads.Adopt multistage atomizing, atomization quality is guaranteed, is difficult for plug nozzle, and the gas consumption rate is low, and atomized particle size is tiny.Thereby the double flow road can be regulated respectively throttle flow and reach the function of regulating load and atomization quality.Spray gun can by regulating the proportionate relationship of throttle flow, reach the purpose of regulating load and atomization quality.It is simple in structure, and is easy to use, and the thermal efficiency is high, and energy-saving and emission-reduction reduce fee of material, have widely practicality.
Figure of description
Fig. 1 is structural representation of the present invention.
Among the 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-.
The specific embodiment
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 advances 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 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, water-coal-slurry pulp-inlet pipe 3 and the sidewall of 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 the front portion is enclosed within the inner core 8 on the 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, the horn mouth outer rim is fixed on the inwall of urceolus 9, has a plurality of 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 a plurality of nozzles 10, and a plurality of nozzles 10 circularize layout.Have a plurality of excircle holes that are connected with external admission pipe 4 and interval of internal and external tube respectively on the described flow mixing device 5, and have a plurality of inner periphery holes that are connected with water-coal-slurry pulp-inlet pipe 3 and inner core 8 respectively.Water-coal-slurry is through Y shape spray orifice 6 ejection, mixed flow elder generation multiple impact impacting tube 7, and then with steam in mixed, last mixed flow is gone out nozzle 10 and is formed the very thin water-coal-slurry mist of atomizing.
Claims (4)
1. a double flow road outer tube advances to starch load-adjustable multistage atomizing water-coal-slurry spraying gun, it is characterized in that: it comprises flow mixing device (5), the left end of 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), water-coal-slurry pulp-inlet pipe (3) and the sidewall of external admission pipe (4); The middle part of flow mixing device (5) is provided with Y shape shower nozzle (6), the right-hand member of flow mixing device (5) is provided with the urceolus (9) that the front portion is enclosed within the inner core (8) on the Y shape shower nozzle (6) and is set with inner core (8), the front portion of inner core (8) is bell mouth shape, the horn mouth outer rim is fixed on the inwall of urceolus (9), have a plurality of holes that are connected with interval of internal and external tube on the horn mouth of inner core (8) front portion, 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 provided with a plurality of nozzles (10); Have a plurality of excircle holes that are connected with external admission pipe (4) and interval of internal and external tube respectively on the described flow mixing device (5), and have a plurality of inner periphery holes that are connected with water-coal-slurry pulp-inlet pipe (3) and inner core (8) respectively.
2. double flow according to claim 1 road outer tube advances to starch load-adjustable multistage atomizing water-coal-slurry spraying gun, and it is characterized in that: described outer shower nozzle (11) is provided with a plurality of nozzles (10) and circularizes layout.
3. double flow according to claim 1 road outer tube advances to starch load-adjustable multistage atomizing water-coal-slurry spraying gun, and it is characterized in that: described urceolus (9) is threaded with flow mixing device (5).
4. double flow according to claim 1 road outer tube advances to starch load-adjustable multistage atomizing water-coal-slurry spraying gun, and it is characterized in that: described outer shower nozzle (11) is threaded with urceolus (9).
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 true CN102913905A (en) | 2013-02-06 |
| CN102913905B 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191928A (en) * | 2017-06-23 | 2017-09-22 | 山西大学 | A kind of multistage atomizing oil gun |
| CN107726312A (en) * | 2017-10-19 | 2018-02-23 | 山东辰跃节能科技有限公司 | A kind of two-stage steam atomization oil gun |
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 |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191928A (en) * | 2017-06-23 | 2017-09-22 | 山西大学 | A kind of multistage atomizing oil gun |
| CN107191928B (en) * | 2017-06-23 | 2023-09-22 | 山西大学 | Multistage atomization oil gun |
| CN107726312A (en) * | 2017-10-19 | 2018-02-23 | 山东辰跃节能科技有限公司 | A kind of two-stage steam 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 |
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| CN102913905B (en) | 2016-05-11 |
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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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