CN202951684U - Pipeline cleaning device of high temperature coke oven waste gas injected by compressed nitrogen gas - Google Patents
Pipeline cleaning device of high temperature coke oven waste gas injected by compressed nitrogen gas Download PDFInfo
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- CN202951684U CN202951684U CN2012206366836U CN201220636683U CN202951684U CN 202951684 U CN202951684 U CN 202951684U CN 2012206366836 U CN2012206366836 U CN 2012206366836U CN 201220636683 U CN201220636683 U CN 201220636683U CN 202951684 U CN202951684 U CN 202951684U
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- coke oven
- high temperature
- pipeline
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- compressed nitrogen
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Abstract
The utility model relates to a pipeline cleaning device of high temperature coke oven waste gas injected by compressed nitrogen gas. The pipeline cleaning device of the high temperature coke oven waste gas injected by the compressed nitrogen gas comprises a pulse valve, a gas bag, a pulse injection connecting pipeline, a pipeline nozzle, and a pulse injection programmable logic controller (PLC) control system. One end of the pulse valve is connected with the pulse injection PLC control system, the other end of the pulse valve is connected with the gas bag, and the gas bag is connected with the pipeline nozzle through the pulse injection connecting pipeline. The pipeline cleaning device of the high temperature coke oven waste gas injected by the compressed nitrogen gas has the advantages that injection medium is the compressed nitrogen gas, the compressed nitrogen gas in the gas bag is instantly injected into the high temperature coke oven waste gas pipeline to be cleaned, a stream of injection gas flow filled with the whole pipeline section is formed in the high temperature coke oven waste gas pipeline, injection sequence and injection time are set by the pulse injection PLC control system according to production practice, cleanness of the pipeline is effectively kept, and pipeline blocking is prevented.
Description
Technical field
The utility model relates to the clean technologies field, particularly a kind of pulse jet pipeline cleaning device that utilizes compressed nitrogen cleaning high temperature coke oven raw coke oven gas pipeline.
Background technology
At present, the high temperature raw coke oven gas that domestic coke-oven plant produces when coking is entering product workshop after spraying the ammoniacal liquor cooling when entering discharge through coke oven coke oven uprising tube all, this processing method is so that be gas in the raw coke oven gas pipeline, liquid, Gu Three-phase Flow state, be difficult for existing the line clogging problem, but the method for this kind PROCESS FOR TREATMENT high temperature raw coke oven gas is that the high temperature raw coke oven gas more than 700 ℃ is cooled, a large amount of heat energy have been lost in vain, be contrary to the national energy-saving policy, 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, facts have proved that this situation is to occur.
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, contain tar content during every mark is vertical up to 80～120 grams, because tar just begins to separate out when 450 ℃ of left and right sides, on tube wall, although the high temperature raw gas temperature is 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 utility model provides a kind of high temperature coke oven raw coke oven gas pipeline cleaning device that utilizes the compressed nitrogen winding-up, 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.At the high temperature coke oven raw coke oven gas pipeline a plurality of such pulse jet pipeline cleaning devices are set by segmentation, can well keep duct cleaning, not blocked.
For achieving the above object, the utility model is realized by the following technical solutions:
A kind of high temperature coke oven raw coke oven gas pipeline cleaning device that utilizes the compressed nitrogen winding-up, comprise pulse valve, gas bag, the pulse jet connecting pipe, plumbing nozzle and pulse jet PLC control system, described pulse valve one end is connected with pulse jet PLC control system, the pulse valve other end is connected with gas bag, gas bag is connected with plumbing nozzle by the pulse jet connecting pipe, by pulse jet PLC control system control impuls valve according to setting program with the compressed nitrogen of the 0.2-0.4MPa in the gas bag by the pulse jet connecting pipe, at last spray into cleaned high temperature coke oven raw coke oven gas pipeline by plumbing nozzle, wherein the interior high temperature coke oven raw coke oven gas flow direction of pulse jet direction and pipe in the same way.
Described gas bag can be adjusted length according to reality winding-up point number and deployment conditions, makes it wear 1 or a plurality of pulse valve 1 and corresponding pulse jet connecting pipe.
Compared with prior art, the beneficial effects of the utility model are:
The utility model sprays one very strong nitrogen stream by the compressed nitrogen of winding-up 0.2 ~ 0.4MPa by pulse valve and plumbing nozzle moment, and 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.At the high temperature coke oven raw coke oven gas pipeline a plurality of such pulse jet pipeline cleaning devices are set by segmentation, can well keep duct cleaning, not blocked.Owing to be pulse jet, once the nitrogen amount of winding-up seldom, only have about 0.2m3 at every turn, and pulse jet PLC control system can be set winding-up order and winding-up time according to production practices, need to have accomplished just winding-up, the thermal loss that minimizing causes because of nitrogen-blow, the efficiency of utilization of raising high temperature raw coke oven gas.
Description of drawings
Fig. 1 is structure chart of the present utility model;
Fig. 2 is the top view of the utility model Fig. 1.
1-pulse valve, 2-gas bag, 3-pulse jet connecting pipe, 4-plumbing nozzle, 5-pulse jet PLC control system 6-with high temperature coke oven raw coke oven gas flow direction 8-pulse jet direction in the high temperature raw coke oven gas pipeline 7-pipe of heat-insulation layer
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is further specified:
As depicted in figs. 1 and 2, the utility model utilizes the high temperature coke oven raw coke oven gas pipeline cleaning device of compressed nitrogen winding-up, by pulse valve 1, gas bag 2, pulse jet connecting pipe 3, plumbing nozzle 4 and pulse jet PLC control system 5 form, described pulse valve 1 one ends are connected with pulse jet PLC control system 5, pulse valve 1 other end is connected with gas bag 2, gas bag 2 is connected with plumbing nozzle 4 by pulse jet connecting pipe 3, pulse valve 1, pulse jet connecting pipe 3 and plumbing nozzle 4 are one or more, are provided with the compressed nitrogen that pressure is 0.2～0.4MPa in the gas bag 2.By pulse jet PLC control system 5 control impuls valves 1 according to setting program with the compressed nitrogen of the 0.2-0.4MPa in the gas bag by pulse jet connecting pipe 3, at last spray into cleaned high temperature coke oven raw coke oven gas pipeline by plumbing nozzle 4, wherein the interior high temperature coke oven raw coke oven gas flow direction 7 of pulse jet direction 8 and pipe in the same way.
When using the utility model, at first plumbing nozzle 4 other ends are arranged in the high temperature raw coke oven gas pipeline 6 with heat-insulation layer, then by pulse jet PLC control system 5 control impuls valves 1 according to setting program with the compressed nitrogen of 0.2～0.4MPa in the gas bag 2 by pulse jet connecting pipe 3, at last spray into high temperature raw coke oven gas pipeline 6 with heat-insulation layer by plumbing nozzle 4, because pulse valve moment sprays into the compressed nitrogen of 0.2～0.4MPa and forms the winding-up air-flow that one is full of whole pipeline section through plumbing nozzle 4 at the high temperature raw coke oven gas pipeline 6 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 utility model, be not that the utility model is imposed any restrictions, everyly according to the utility model it is carried out equivalent variations and modification, all within the category of the art of this patent protection scheme.
Claims (2)
1. high temperature coke oven raw coke oven gas pipeline cleaning device that utilizes compressed nitrogen winding-up, it is characterized in that, comprise pulse valve, gas bag, the pulse jet connecting pipe, plumbing nozzle and pulse jet PLC control system, described pulse valve one end is connected with pulse jet PLC control system, the pulse valve other end is connected with gas bag, gas bag is connected with plumbing nozzle by the pulse jet connecting pipe, by pulse jet PLC control system control impuls valve according to setting program with the compressed nitrogen of the 0.2-0.4MPa in the gas bag by the pulse jet connecting pipe, at last spray into cleaned high temperature coke oven raw coke oven gas pipeline by plumbing nozzle, wherein the interior high temperature coke oven raw coke oven gas flow direction of pulse jet direction and pipe in the same way.
2. the high temperature coke oven raw coke oven gas pipeline cleaning device that utilizes compressed nitrogen winding-up according to claim 1, it is characterized in that, described gas bag can be adjusted length according to reality winding-up point number and deployment conditions, makes it wear 1 or a plurality of pulse valve and corresponding pulse jet connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206366836U CN202951684U (en) | 2012-11-28 | 2012-11-28 | Pipeline cleaning device of high temperature coke oven waste gas injected by compressed nitrogen gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206366836U CN202951684U (en) | 2012-11-28 | 2012-11-28 | Pipeline cleaning device of high temperature coke oven waste gas injected by compressed nitrogen gas |
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| Publication Number | Publication Date |
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| CN202951684U true CN202951684U (en) | 2013-05-29 |
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| CN2012206366836U Expired - Lifetime CN202951684U (en) | 2012-11-28 | 2012-11-28 | Pipeline cleaning device of high temperature coke oven waste gas injected by compressed nitrogen gas |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962233A (en) * | 2012-11-28 | 2013-03-13 | 中冶焦耐工程技术有限公司 | High-temperature coke oven raw coke oven gas pipeline cleaning device adopting compressed nitrogen injection |
| CN103934242A (en) * | 2013-08-25 | 2014-07-23 | 贵州兴化化工股份有限公司 | Method for purifying and cleaning semi-water gas manufacturing system |
| CN103962351A (en) * | 2014-04-21 | 2014-08-06 | 鞍钢股份有限公司 | Method for sweeping chemical raw material conveying pipelines |
| CN105107798A (en) * | 2014-10-23 | 2015-12-02 | 铜陵翔宇商贸有限公司 | Soot blower in extrusion shaft |
-
2012
- 2012-11-28 CN CN2012206366836U patent/CN202951684U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962233A (en) * | 2012-11-28 | 2013-03-13 | 中冶焦耐工程技术有限公司 | High-temperature coke oven raw coke oven gas pipeline cleaning device adopting compressed nitrogen injection |
| CN103934242A (en) * | 2013-08-25 | 2014-07-23 | 贵州兴化化工股份有限公司 | Method for purifying and cleaning semi-water gas manufacturing system |
| CN103962351A (en) * | 2014-04-21 | 2014-08-06 | 鞍钢股份有限公司 | Method for sweeping chemical raw material conveying pipelines |
| CN103962351B (en) * | 2014-04-21 | 2017-04-26 | 鞍钢股份有限公司 | Method for sweeping chemical raw material conveying pipelines |
| CN105107798A (en) * | 2014-10-23 | 2015-12-02 | 铜陵翔宇商贸有限公司 | Soot blower in extrusion shaft |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130529 |
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| CX01 | Expiry of patent term |