CN203419936U - Blast-furnace gas and nitrogen purging device of combustion gas turbine - Google Patents
Blast-furnace gas and nitrogen purging device of combustion gas turbine Download PDFInfo
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- CN203419936U CN203419936U CN201320742025.XU CN201320742025U CN203419936U CN 203419936 U CN203419936 U CN 203419936U CN 201320742025 U CN201320742025 U CN 201320742025U CN 203419936 U CN203419936 U CN 203419936U
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Abstract
The utility model discloses a blast-furnace gas and nitrogen purging device of a combustion gas turbine. The blast-furnace gas and nitrogen purging device comprises a nitrogen source, a nitrogen filter, a first speed adjusting valve, a second speed adjusting valve, a first stop valve, a second stop valve, a third stop valve, a two-position three-way magnetic valve and a back-purging filter, wherein the nitrogen source is connected to the nitrogen filter, the outlet of the nitrogen filter is respectively connected to the first speed adjusting valve and the second speed adjusting valve, the first stop valve is connected behind the first speed adjusting valve, the second stop valve is connected behind the second speed adjusting valve, the first stop valve is connected at the air inlet end of the back-purging filter, the third stop valve is arranged at the air outlet end of the back-purging filter, the second stop valve is connected to the inlet of the two-position three-way magnetic valve, and two outlets of the two-position three-way magnetic valve are connected at the two sides of the third stop valve; an exhaust valve and a fourth stop valve are sequentially arranged between the third stop valve and a combustion chamber. By adopting the technical scheme, the blast-furnace gas and nitrogen purging device can be used for well solving the problems occurring when the blast-furnace gas inflow is increased.
Description
Technical field
The utility model relates to gas turbine fuel supply system, is specifically related to internal combustion turbine blast furnace gas blow device.
Background technology
The fuel that is applied at present the internal combustion turbine of domestic iron and steel enterprises is generally blast furnace gas, coke-oven gas and coal gas of converter; Because the inferior quality of coke-oven gas and coal gas of converter, foreign matter content is higher, easily causes the frequent jams of gas turbine nozzle and strainer, the frequent chaser of internal combustion turbine; For fear of this kind of situation, adopt now null value class new technology, only in the time of start, enable coke-oven gas, after the normal startup of internal combustion turbine, just directly cut off coke-oven gas, only pass into blast furnace gas; Because blast furnace gas contains hydrogen, carbon monoxide is more, if supply line contains air, when lighting a fire, internal combustion turbine easily there is deflagration phenomenon, cause serious accident.Also because blast furnace gas is low heat value industrial gas, in order to reach the temperature of combustion value of regulation, need to increase the air input of blast furnace gas, the increase of air input has also increased the weight of the burden of blast furnace gas supply line strainer, be badly in need of a kind of can purging separately strainer, the blow device that can purge whole blast furnace gas supply line again.
Summary of the invention
The purpose of this utility model is to provide a kind of device to strainer combustion gas and blast furnace gas supply line purging simultaneously.
To achieve these goals, the technical scheme that the utility model provides: internal combustion turbine blast furnace gas nitrogen purging device, comprise source nitrogen, nitrogen filtering device, the first speed-regulating valve, the second speed-regulating valve, the first trip valve, the second trip valve, the 3rd trip valve, two-position three way magnetic valve and blowback are inswept filter, described source nitrogen is connected with nitrogen filtering device, nitrogen filtering device outlet respectively with the first speed-regulating valve is connected with the second speed-regulating valve, after the first speed-regulating valve, connect the first trip valve, after the second speed-regulating valve, connect the second trip valve, described the first trip valve is connected to the inswept filter inlet end of blowback, described the 3rd trip valve is arranged on the outlet side of the inswept filter of blowback, described the second trip valve is connected with two-position three way magnetic valve entrance, two outlets of two-position three way magnetic valve are connected to the 3rd trip valve both sides, between the 3rd trip valve and combustion chamber, be disposed with vent valve and the 4th trip valve.
Blowback as herein described is inswept, and filter contains an inlet end, an outlet side and be connected with the sewage draining exit of switch valve.
The feature of technique scheme is, before opening internal combustion turbine:
First, the inswept filter of blowback is purged, Purge methods is: open the inswept filter of blowback sewage draining exit, open source nitrogen, the first trip valve and the second trip valve, close the 3rd trip valve, and making two-position three way magnetic valve keep passing into blowback, to sweep filter outlet effective; Source nitrogen passes through through nitrogen filtering device Hou Congliangtiao road, and article one is to pass through successively the blast furnace gas pipeline of the first speed-regulating valve, the first trip valve and the inswept filter leading portion of blowback, enters the inswept filter of blowback afterwards from the inswept filter inlet end of blowback; Second is to pass through successively the second speed-regulating valve, the second trip valve and two-position three way magnetic valve, enters the inswept filter of blowback afterwards from the inswept filter gassing end of blowback.In carrying out the purge of strainer, the second speed governing threshold values is transferred to than the high 10～40pa of the first speed-regulating valve, make article one nitrogen as the source of the gas that stops of the inswept filter inlet end of blowback, thereby finally make two nitrogen all from sewage draining exit ejection, reach the purging to the inswept filter of blowback.
Then, blast furnace gas supply line is purged, and Purge methods is: close the sewage draining exit of the inswept filter of blowback, open the first trip valve, the 3rd trip valve and vent valve, close the second trip valve and the 4th trip valve, now two-position three way magnetic valve is in maintaining condition; Now only have a nitrogen to purge pipeline, source nitrogen will pass through nitrogen filtering device successively.The first speed-regulating valve, the first trip valve, blowback is inswept filter, the 3rd trip valve and vent valve; Nitrogen is all blown out the air in the pipeline being passed through and assorted dirt from the pipeline of vent valve.Whole process has completed the purging task of blast furnace gas pipeline, closes afterwards the first trip valve and the second trip valve; Open the 3rd trip valve and the 4th trip valve; After purging, guarantee that passing into blast furnace gas pipeline can not contain air.
As preferred version, in order to prevent the first and second trip valves reality that is not closed completely, make blast furnace gas enter nitrogen pipeline, described the first trip valve and the outlet of the second trip valve are connected to respectively the first check valve and the second check valve; By stopping of check valve, blast furnace gas will can not be penetrated in nitrogen pipeline.
Accompanying drawing explanation
Fig. 1 is the structural representation of the internal combustion turbine blast furnace gas nitrogen purging device of the utility model embodiment.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail,
As shown in Figure 1: the internal combustion turbine blast furnace gas nitrogen purging device that the utility model embodiment provides, comprise source nitrogen 1, nitrogen filtering device 2, the first speed-regulating valve 3, the second speed-regulating valve 11, the first check valve 5, the second check valve 13, the first trip valve 4, the second trip valve 12, the 3rd trip valve 8, the 4th trip valve 10, two-position three way magnetic valve 14 and blowback are inswept filter 7, source nitrogen 1 is connected with nitrogen filtering device 2, nitrogen filtering device 2 outlet respectively with the first speed-regulating valves 3 are connected with the second speed-regulating valve 11, the first speed-regulating valve 3 is connected with the first trip valve 4 and the first check valve 5 in turn, the second speed-regulating valve 11 is connected with the second trip valve 12 and the second check valve 13 in turn, the first check valve 5 is connected to inswept filter 7 inlet ends of blowback, blowback is inswept, and filter 7 outlet sides are provided with the 3rd trip valve 8, the second check valve 13 is connected with two-position three way magnetic valve 14 entrances, two outlets of two-position three way magnetic valve 14 are connected to the 3rd trip valve 8 both sides, between the 3rd trip valve 8 and combustion chamber, be disposed with vent valve 9 and the 4th trip valve 10.
The inswept filter of blowback herein contains an inlet end, an outlet side and is connected with the sewage draining exit of switch valve 6.
The feature of technique scheme is: before opening internal combustion turbine,
First: the inswept filter of blowback is purged, Purge methods is: open the inswept filter of blowback sewage draining exit, open source nitrogen 1, the first trip valve 4 and the second trip valve 11, close the 3rd trip valve 8, and make two-position three way magnetic valve 14 keep passing into inswept filter 7 outlets of blowback effectively; Source nitrogen 1 passes through through nitrogen filtering device 2 Hou Congliangtiao roads, article one, be to pass through successively the blast furnace gas pipeline of the first speed-regulating valve 3, the first trip valve 4, the first check valve 5 and inswept filter 6 leading portions of blowback, from inswept filter 7 inlet ends of blowback, enter the inswept filter 7 of blowback afterwards; Second is to pass through successively the second speed-regulating valve 11, the second trip valve 12, the second check valve 13 and two-position three way magnetic valve 14, enters the inswept filter 6 of blowback afterwards from the inswept filter of blowback 6 outlet sides.In carrying out the purge of strainer, the second speed-regulating valve 11 values are transferred to than the high 10～40pa of the first speed-regulating valve 3, make article one nitrogen as the source of the gas that stops of inswept filter 7 inlet ends of blowback, thereby finally make two nitrogen all from sewage draining exit ejection, complete the purging that reaches the inswept filter of blowback.
Then: blast furnace gas supply line is purged, Purge methods is: the sewage draining exit of closing the inswept filter of blowback, open the first trip valve 4, the 3rd trip valve 8 and vent valve 9, close the second trip valve 12 and the 4th trip valve 10, now two-position three way magnetic valve 14 is in maintaining condition; Now only have a nitrogen to purge pipeline, source nitrogen 1 will pass through nitrogen filtering device 2, the first speed-regulating valve 3, the first trip valve 4, the first check valve 5 successively, blowback is inswept filter 7, the 3rd trip valve 8 and vent valve 9; Finally make nitrogen that the air in the pipeline being passed through and assorted dirt are all blown out from the pipeline of vent valve 9.Whole process has completed the purging task of blast furnace gas pipeline, closes afterwards the first trip valve 4, the second trip valve 12 and vent valve 9; Open the 3rd trip valve 8 and the 4th trip valve 10; After purging, guarantee that passing into blast furnace gas pipeline can not contain air.By stopping of check valve, blast furnace gas will can not be penetrated in nitrogen pipeline.
Above-described is only preferred implementation of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic is not done too much description at this.Should be understood that; for a person skilled in the art, not departing under the prerequisite of the utility model structure, can also make some distortion and improvement; these also should be considered as protection domain of the present utility model, and these can not affect effect and practical applicability that the utility model is implemented.
Claims (2)
1. internal combustion turbine blast furnace gas nitrogen purging device, it is characterized in that: comprise source nitrogen, nitrogen filtering device, the first speed-regulating valve, the second speed-regulating valve, the first trip valve, the second trip valve, the 3rd trip valve, two-position three way magnetic valve and blowback are inswept filter, described source nitrogen is connected with nitrogen filtering device, nitrogen filtering device outlet respectively with the first speed-regulating valve is connected with the second speed-regulating valve, after the first speed-regulating valve, connect the first trip valve, after the second speed-regulating valve, connect the second trip valve, described the first trip valve is connected to the inswept filter inlet end of blowback, described the 3rd trip valve is arranged on the outlet side of the inswept filter of blowback, described the second trip valve is connected with two-position three way magnetic valve entrance, two outlets of two-position three way magnetic valve are connected to the 3rd trip valve both sides, between the 3rd trip valve and combustion chamber, be disposed with vent valve and the 4th trip valve.
2. internal combustion turbine blast furnace gas nitrogen purging device according to claim 1, is characterized in that: described the first trip valve and the outlet of the second trip valve are connected to respectively the first check valve and the second check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320742025.XU CN203419936U (en) | 2013-11-22 | 2013-11-22 | Blast-furnace gas and nitrogen purging device of combustion gas turbine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320742025.XU CN203419936U (en) | 2013-11-22 | 2013-11-22 | Blast-furnace gas and nitrogen purging device of combustion gas turbine |
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| CN203419936U true CN203419936U (en) | 2014-02-05 |
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| CN201320742025.XU Expired - Fee Related CN203419936U (en) | 2013-11-22 | 2013-11-22 | Blast-furnace gas and nitrogen purging device of combustion gas turbine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578145A (en) * | 2018-11-15 | 2019-04-05 | 重庆千信能源环保有限公司 | A kind of GE combustion engine starting method |
| CN111437658A (en) * | 2020-04-17 | 2020-07-24 | 马鞍山钢铁股份有限公司 | Rotary hearth furnace green ball drying coal gas filtering system and switching control method thereof |
-
2013
- 2013-11-22 CN CN201320742025.XU patent/CN203419936U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578145A (en) * | 2018-11-15 | 2019-04-05 | 重庆千信能源环保有限公司 | A kind of GE combustion engine starting method |
| CN111437658A (en) * | 2020-04-17 | 2020-07-24 | 马鞍山钢铁股份有限公司 | Rotary hearth furnace green ball drying coal gas filtering system and switching control method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20151122 |