CN102974582A - Pulsed nozzle for cleaning high temperature coke oven raw gas pipeline - Google Patents
Pulsed nozzle for cleaning high temperature coke oven raw gas pipeline Download PDFInfo
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- CN102974582A CN102974582A CN2012104964863A CN201210496486A CN102974582A CN 102974582 A CN102974582 A CN 102974582A CN 2012104964863 A CN2012104964863 A CN 2012104964863A CN 201210496486 A CN201210496486 A CN 201210496486A CN 102974582 A CN102974582 A CN 102974582A
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- coke oven
- high temperature
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- pipeline
- raw gas
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Abstract
The invention relates to a pulsed nozzle for cleaning a high temperature coke oven raw gas pipeline. The pulsed nozzle for cleaning the high temperature coke oven raw gas pipeline comprises a connecting flange, a connecting pipe, an insulation sleeve and an arc tube shower nozzle. One end of the connecting pipe is connected with an external nitrogen injection tube through the connecting flange, wherein an injection medium is pressurized nitrogen of 0.2-0.4MPa; the other end of the connecting pipe is connected with the arc tube shower nozzle; and the arc tube shower nozzle is tightly pasted with the inner diameter of the coke oven raw gas pipeline, and a wedge-shaped structure is formed along one end of raw gas flow direction in the pipeline. Compared with the prior art, the pulsed nozzle for cleaning the high temperature coke oven raw gas pipeline has the beneficial effects that by injecting the nitrogen medium, strong nitrogen flow is ejected instantly through a pulse valve and a pipeline nozzle, and meanwhile jet stream which is full of a whole pipeline section is injected and formed to take deposited dusts in the pipeline away; and meanwhile, the nozzle is provided with the insulation sleeve, so that outward heat transfer of the high temperature raw gas through the nozzle can be reduced greatly, and the efficiency of heat utilization of the high temperature raw gas is increased.
Description
Technical field
The present invention relates to the clean technologies field, particularly a kind of impulse jet nozzle that utilizes compressed nitrogen that the high temperature coke oven raw coke oven gas pipeline is cleaned.
Background technology
The research and development of the new technology of processing along with coke making process and chemical industry, domesticly begin to occur or be about to use the high temperature raw coke oven gas is exported to waste heat boiler to carry out after the heat displacement the newer treatment process in entering product workshop, the energy has been saved in the appearance of this technique, but some technical barriers have also been brought simultaneously, wherein easy obstruction of high temperature coke oven raw coke oven gas pipeline is exactly one of them FAQs, find in practice, the high temperature coke oven raw coke oven gas pipeline often stops up, particularly tar easily condenses on the tube wall in the not good situation of pipe insulation, solid particles sediment in the flue gas forms a hardening layer on its surface, finally cause the flow section of pipeline to reduce, thereby changed the hydraulic characteristic of whole pipe-line system, know from hydromechanical knowledge, when pipeline section reduces, the resistance of pipeline strengthens, hydraulic characteristic curve meeting steepening, and the characteristic curve of fan of air-introduced machine is certain, the operating point can move to left like this, final result is that the pressure head of blower fan becomes large, but its operating point flow reduces, if the impact that pipeline section reduces less than flow reduce affect the time, to further cause flow velocity decline in the pipeline, thereby cause the sedimentation of large solid particle, thereby stop up further aggravation.
The high temperature raw coke oven gas pipeline has following characteristics simultaneously: what flow in (1) pipe is the high temperature raw coke oven gas, contains tar content up to 80～120 grams during every mark is vertical.Because tar just begins to separate out when 450 ℃ of left and right sides, on tube wall, although the high temperature raw gas temperature more than 700 ℃, the situation that temperature is lower than 450 ℃ can appear in tube wall temperature when pipe insulation is bad; (2) the cross section flow velocity is inhomogeneous in the high temperature raw coke oven gas pipeline, when coke oven coal-charging, produce a large amount of flue gases, dustiness is also high, even has the solid particle of greater particle size to enter pipeline, and flue-gas temperature also has fluctuation, but when coking exhaust gas volumn in latter stage reduces, dustiness also reduces, and the pipeline section flow velocity descends, and therefore this inhomogeneities causes the grit sedimentation easily, tar is separated out, and finally easily causes the obstruction of pipeline.
Summary of the invention
The purpose of this invention is to provide a kind of impulse jet nozzle that cleans the high temperature coke oven raw coke oven gas pipeline, compressed nitrogen by the 0.2 ~ 0.4MPa that jets, spray one very strong nitrogen stream by pulse valve and plumbing nozzle moment, injection forms the high velocity air that one is full of whole pipeline section simultaneously, and the dust stratification in the pipeline is carried away.This nozzle can greatly reduce the high temperature raw coke oven gas by the external heat transmission of nozzle with thermal insulation casing simultaneously, improves the efficiency of utilization of high temperature raw coke oven gas.
For achieving the above object, the present invention realizes by the following technical solutions:
A kind of impulse jet nozzle that cleans the high temperature coke oven raw coke oven gas pipeline comprises adpting flange, tube connector, thermal insulation casing and curved pipe shower nozzle, and tube connector one end is connected with outside nitrogen injection pipeline by adpting flange, and blowing media is the compressed nitrogen of 0.2 ~ 0.4MPa; The tube connector other end is connected with the curved pipe shower nozzle, and described curved pipe shower nozzle is close to the coal oven dithio-gas internal diameter of the pipeline, and its end in face of the interior raw coke oven gas flow direction of pipe is made wedge structure.
Described curved pipe shower nozzle radian is 90 °-120 °.
The described tube connector outside is provided with thermal insulation casing, the thermal insulation casing two ends respectively with tube connector and the continuous welding of curved pipe shower nozzle, thermal insulation casing outer wall and the high temperature raw coke oven gas pipeline continuous welding that is blowed cleaning.
Compared with prior art, the invention has the beneficial effects as follows:
A kind of impulse jet nozzle that cleans the high temperature coke oven raw coke oven gas pipeline, have cost low, simple in structure, reasonable in design, be easy to processing, safe and reliable, long service life, the characteristics of good heat insulating, because the tube connector outside is provided with thermal insulation casing, the air layer that has so just formed one deck sealing plays the effect of insulation, reduce the high temperature raw coke oven gas pipeline inside that causes because this nozzle is installed to the heat transmission of outside, reduced heat loss; Because the curved pipe shower nozzle is close to high temperature coke oven raw coke oven gas tube wall, can be full of the whole interior cross section that is blowed pipe behind the compressed nitrogen diffusion injection that has guaranteed to jet, an end of curved pipe shower nozzle is processed into wedge shape simultaneously, has reduced flow resistance and the laying dust risk of flue gas.
Description of drawings
Fig. 1 is structure chart of the present invention;
Fig. 2 is the profile of Fig. 1 of the present invention.
1-adpting flange, 2-tube connector, 3-thermal insulation casing, 4-curved pipe shower nozzle 5-with high temperature coke oven raw coke oven gas flow direction in the high temperature raw coke oven gas pipeline 6-wedge structure 7-pulse jet direction 8-pipe of heat-insulation layer
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is further specified:
As depicted in figs. 1 and 2, a kind of impulse jet nozzle that cleans the high temperature coke oven raw coke oven gas pipeline of the present invention, comprise adpting flange 1, tube connector 2, thermal insulation casing 3 and curved pipe shower nozzle 4, tube connector 2 one ends are connected with outside nitrogen injection pipeline by adpting flange 1, and blowing media is the compressed nitrogen of 0.2 ~ 0.4MPa; Tube connector 2 other ends are connected with curved pipe shower nozzle 4, and described curved pipe shower nozzle 4 is close to the coal oven dithio-gas internal diameter of the pipeline, and its end in face of the interior high temperature coke oven raw coke oven gas flow direction 8 of pipe is made wedge structure 6.The radius of curvature of described curved pipe shower nozzle 4 arcs equals to be blowed the internal diameter of high temperature coke oven raw coke oven gas pipeline, guarantees that it is close to high temperature coke oven raw coke oven gas tube wall; Its radian is generally 90 °, specifically can be adjusted according to being blowed the bore size, so that can be full of the whole interior cross section that is blowed pipe behind the compressed nitrogen of the winding-up diffusion injection; One end of this curved pipe shower nozzle is processed into wedge shape, to reduce flow resistance and laying dust risk.Be provided with thermal insulation casing in tube connector 2 outsides, can greatly reduce the high temperature raw coke oven gas by the external heat transmission of nozzle, improve the efficiency of utilization of high temperature raw coke oven gas.Thermal insulation casing 3 two ends respectively with tube connector 2 and 4 continuous weldings of curved pipe shower nozzle, require tightly not leak; Thermal insulation casing 3 outer walls and the high temperature raw coke oven gas pipeline continuous welding that is blowed cleaning are not tightly leaked.
When using this device, at first adpting flange 1 is connected with cleaning device, then curved pipe shower nozzle 4 is arranged in the high temperature raw coke oven gas pipeline 5 with heat-insulation layer, start cleaning device, blowing media is the compressed nitrogen of 0.2 ~ 0.4MPa; Compressed nitrogen sprays in the high temperature raw coke oven gas pipeline 5 with heat-insulation layer by tube connector 2 and curved pipe shower nozzle 4, compressed nitrogen forms the winding-up air-flow that one is full of whole pipeline section at the high temperature raw coke oven gas pipeline 5 interior diffusion injections with heat-insulation layer, with the flue dust of sedimentation or the flue dust that the is about to sedimentation free settling pipeline section that blows off.
Above described only be basic principle of the present invention, be not that the present invention is imposed any restrictions, everyly according to the present invention it is carried out equivalent variations and modification, all within the category of the art of this patent protection scheme.
Claims (3)
1. impulse jet nozzle that cleans the high temperature coke oven raw coke oven gas pipeline, it is characterized in that, comprise adpting flange, tube connector, thermal insulation casing and curved pipe shower nozzle, tube connector one end is connected with outside nitrogen injection pipeline by adpting flange, and blowing media is the compressed nitrogen of 0.2 ~ 0.4MPa; The tube connector other end is connected with the curved pipe shower nozzle, and described curved pipe shower nozzle is close to the coal oven dithio-gas internal diameter of the pipeline, and its end in face of the interior raw coke oven gas flow direction of pipe is made wedge structure.
2. a kind of impulse jet nozzle that cleans the high temperature coke oven raw coke oven gas pipeline according to claim 1 is characterized in that, described curved pipe shower nozzle radian is 90 °-120 °.
3. a kind of impulse jet nozzle that cleans the high temperature coke oven raw coke oven gas pipeline according to claim 1, it is characterized in that, the described tube connector outside is provided with thermal insulation casing, the thermal insulation casing two ends respectively with tube connector and the continuous welding of curved pipe shower nozzle, the thermal insulation casing outer wall be blowed the high temperature raw coke oven gas pipeline continuous welding of cleaning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210496486.3A CN102974582B (en) | 2012-11-28 | 2012-11-28 | Pulsed nozzle for cleaning high temperature coke oven raw gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210496486.3A CN102974582B (en) | 2012-11-28 | 2012-11-28 | Pulsed nozzle for cleaning high temperature coke oven raw gas pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102974582A true CN102974582A (en) | 2013-03-20 |
| CN102974582B CN102974582B (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210496486.3A Active CN102974582B (en) | 2012-11-28 | 2012-11-28 | Pulsed nozzle for cleaning high temperature coke oven raw gas pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020190356A (en) * | 2019-05-21 | 2020-11-26 | Ｊｆｅスチール株式会社 | Sediment-removing apparatus and sediment-removing method |
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| JPH02119984A (en) * | 1988-10-29 | 1990-05-08 | Nippon Shisetsu Hozen Kk | Method for cleaning off fat and oil deposited in pipeline |
| JP2002039019A (en) * | 2000-07-24 | 2002-02-06 | Hino Motors Ltd | Egr cooler and method for washing it |
| CN2739486Y (en) * | 2004-10-15 | 2005-11-09 | 南京大陆中电科技股份有限公司 | Conductive pipe with gas source |
| CN101672479A (en) * | 2009-07-29 | 2010-03-17 | 东方锅炉（集团）股份有限公司 | Sweeping device for dust deposit in flue |
| CN201930947U (en) * | 2010-11-23 | 2011-08-17 | 合肥水泥研究设计院 | Device for sweeping dust accumulated in pipeline |
| CN202411051U (en) * | 2011-12-01 | 2012-09-05 | 浙江博凡动力装备有限公司 | Pipeline cleaner |
| CN102773234A (en) * | 2012-07-31 | 2012-11-14 | 苏州南风优联环保工程有限公司 | Convenient washing device for pipeline |
| CN202951685U (en) * | 2012-11-28 | 2013-05-29 | 中冶焦耐工程技术有限公司 | Pulse nozzle for cleaning high-temperature coke-oven raw gas pipeline |
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2012
- 2012-11-28 CN CN201210496486.3A patent/CN102974582B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02119984A (en) * | 1988-10-29 | 1990-05-08 | Nippon Shisetsu Hozen Kk | Method for cleaning off fat and oil deposited in pipeline |
| JP2002039019A (en) * | 2000-07-24 | 2002-02-06 | Hino Motors Ltd | Egr cooler and method for washing it |
| CN2739486Y (en) * | 2004-10-15 | 2005-11-09 | 南京大陆中电科技股份有限公司 | Conductive pipe with gas source |
| CN101672479A (en) * | 2009-07-29 | 2010-03-17 | 东方锅炉（集团）股份有限公司 | Sweeping device for dust deposit in flue |
| CN201930947U (en) * | 2010-11-23 | 2011-08-17 | 合肥水泥研究设计院 | Device for sweeping dust accumulated in pipeline |
| CN202411051U (en) * | 2011-12-01 | 2012-09-05 | 浙江博凡动力装备有限公司 | Pipeline cleaner |
| CN102773234A (en) * | 2012-07-31 | 2012-11-14 | 苏州南风优联环保工程有限公司 | Convenient washing device for pipeline |
| CN202951685U (en) * | 2012-11-28 | 2013-05-29 | 中冶焦耐工程技术有限公司 | Pulse nozzle for cleaning high-temperature coke-oven raw gas pipeline |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020190356A (en) * | 2019-05-21 | 2020-11-26 | Ｊｆｅスチール株式会社 | Sediment-removing apparatus and sediment-removing method |
| JP7078014B2 (en) | 2019-05-21 | 2022-05-31 | Ｊｆｅスチール株式会社 | Sediment removal device and sediment removal method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102974582B (en) | 2015-06-24 |
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Effective date of registration: 20180801 Address after: 116085 128 high energy street, Qixian Ling high tech Industrial Park, Dalian, Liaoning Patentee after: ACRE Coking And Refractory (Dalian) Engineering Consulting Corp., MCC Address before: 116085 128 high energy street, Qixian Ling high tech Industrial Park, Dalian, Liaoning Patentee before: ACRE Coking and Refractory Engineering Consulting Corporation, MCC |