CN105156892A - Oxygen partial pressure supply system - Google Patents
Oxygen partial pressure supply system Download PDFInfo
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- CN105156892A CN105156892A CN201510512548.9A CN201510512548A CN105156892A CN 105156892 A CN105156892 A CN 105156892A CN 201510512548 A CN201510512548 A CN 201510512548A CN 105156892 A CN105156892 A CN 105156892A
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Abstract
The invention discloses an oxygen partial pressure supply system. The oxygen partial pressure supply system comprises an oxygen compressor set and a depressurization station; and the oxygen partial pressure supply system is characterized in that the oxygen compressor set comprises a first oxygen compressor, a second oxygen compressor, a third oxygen compressor and a fourth oxygen compressor. The four oxygen compressors are connected with a medium pressure oxygen pipe through pipes; an oxygen turbocompressor is further connected to the medium pressure oxygen pipe to press out supplied 2.0 MPa oxygen, the medium pressure oxygen pipe is then connected to the depressurization station for oxygen depressurization, and the depressurized oxygen is conveyed to be used for steelmaking; and meanwhile, the oxygen compressor set is further provided with a pipe to be connected to a low-pressure oxygen pipe to press out the oxygen which is 0.8-1.0 MPa and 10000 m<3>/h, and the oxygen is directly supplied to iron making and steel rolling. According to the oxygen partial pressure supply system, a special low-pressure oxygen pipe is arranged, depressurization supply after oxygen pressurization is not needed, the oxygen supply procedure is simplified, energy consumption is effectively reduced accordingly, the production cost is reduced, energy conservation and environment protection are achieved, the safety of the low-pressure oxygen pipe is higher, and the running period is longer.
Description
Technical field
The present invention relates to steel-making oxygen supply technical field, particularly relate to a kind of oxygen partial pressure supply system.
Background technique
Oxygen generating plant utilizes air separation technology to manufacture oxygen, nitrogen, argon gas, and for each user of company, iron works uses the point of oxygen many, and different to the pressure demand of oxygen, is all by step-down, thus arrives the object of energy-conservation electric energy.
Oxygen making station oxygen pipe network air feed adopts 1 DN400 pipeline to be used by units such as 20000 unit let-down stations supply iron-making and steel-makings, and pressure maintains more than 1.6Mpa (in standing after step-down).Investigated and analysed by air feed in this year, ironmaking and steel rolling actual average flow of oxygen are at about 1.3 ten thousand m3/h, steel-making waits its counit actual average flow of oxygen about 1.65 ten thousand m3/h, oxygen pressure actual demand of wherein smelting iron is 0.8 ~ 1.0Mpa, oxygen oxygen compressor sends into oxygen pipe network after being all compressed to more than 2.0Mpa, after step-down, 1.6Mpa sends outer net, just can satisfy the demands after being depressurized to 0.8Mpa by ironmaking secondary again, therefore, traditional oxygen supply system is to ironmaking, larger energy loss is there is in steel rolling when carrying out oxygen supply, cost of production is high, not energy-conserving and environment-protective.
Summary of the invention
The technical assignment of technical problem to be solved by this invention and proposition improves prior art, a kind of oxygen partial pressure supply system is provided, solve oxygen supply system traditional in current technology to need first to pressurize and carry out repeatedly step-down again, energy loss is large, the problem that cost of production is high.
For solving above technical problem, technological scheme of the present invention is:
A kind of oxygen partial pressure supply system, comprise oxygen compressor unit and let-down stations, it is characterized in that, described oxygen compressor unit includes an oxygen compressor, No. two oxygen compressors, No. three oxygen compressors and No. four oxygen compressors, four oxygen compressors are connected to middle pressure oxygen channel by pipeline, and middle pressure oxygen channel is also connected with the oxygen that Oxygen turbocompressor suppresses out supply 2.0MPa, flow to steel-making after middle pressure oxygen channel is connected to let-down stations step-down again to use, oxygen compressor unit is also provided with pipeline connection low oxygen pipeline and suppresses out 0.8 ~ 1.0MPa, 10000m simultaneously
3oxygen direct-furnish ironmaking, the steel rolling of/h use.Oxygen partial pressure supply system of the present invention arranges special low oxygen pipeline, thus without the need to by after oxygen pressing again step-down supply, simplify the flow process of oxygen supply, without the need to flogging a dead horse, thus effectively reduce energy consumption, reduce cost of production, energy-conserving and environment-protective, the Security of low oxygen pipeline is higher simultaneously, and the operation period is longer.And the present invention has also continued to use original oxygen pipe network, be supplied to separately steel-making after suppressing out the step-down of middle pressure oxygen and used, in case of emergency can ensure enough oxygen pressure supplies.
Further, described oxygen compressor unit is also connected with nitrogen compressor the supply of nitrogen and meets various different process demands in actual production.
Further, described middle pressure oxygen channel and low oxygen pipeline are also provided with branch road and are connected to oxygen tank group, unnecessary oxygen can be cached in oxygen tank group, ensure the continous-stable of oxygen supply in producing, the stagnation causing steel-making, ironmaking etc. to be produced when avoiding oxygen compressor group to go wrong, avoids causing huge production loss.
Further, described low oxygen pipeline is also provided with arm and is connected to let-down stations, makes middle pressure oxygen channel and low oxygen pipeline mutually can assist switching when being supplied to user.
Further, described low oxygen pipeline is provided with safety valve in direct-furnish ironmaking, steel rolling place, improves safety in utilization.
Further, connecting pipeline is provided with between described middle pressure oxygen channel and low oxygen pipeline, and on connecting pipeline, be provided with valve, pressure oxygen channel and low oxygen pipeline is made to switch use under fault or emergency condition, ensure the stability of oxygen supply, thus guarantee manufacturing efficiency, avoid causing production loss.
Compared with prior art, the invention has the advantages that:
Oxygen partial pressure supply system of the present invention arranges special low oxygen pipeline, without the need to by after oxygen pressing again step-down supply, simplify the flow process of oxygen supply, thus effectively reduce energy consumption, reduce cost of production, energy-conserving and environment-protective, the Security of low oxygen pipeline is higher, and the operation period is longer.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Disclosed in the embodiment of the present invention, a kind of oxygen partial pressure supply system, directly can supply low oxygen, without the need to repeatedly step-down again after pressurization, reduces energy loss, reduces cost of production, energy-conserving and environment-protective.
As shown in Figure 1, a kind of oxygen partial pressure supply system, comprise oxygen compressor unit and let-down stations 5, oxygen compressor unit includes an oxygen compressor 1, No. two oxygen compressors 2, No. three oxygen compressors 3 and No. four oxygen compressors 4, four oxygen compressors are connected to middle pressure oxygen channel 6 by pipeline, and middle pressure oxygen channel 6 is also connected with the oxygen that Oxygen turbocompressor 7 suppresses out supply 2.0MPa, middle pressure oxygen channel 6 flows to steel-making and uses after being connected to let-down stations 5 step-down again, oxygen compressor unit is also connected with nitrogen compressor 9 the supply of nitrogen, oxygen compressor unit is also provided with pipeline connection low oxygen pipeline 8 and suppresses out 0.8 ~ 1.0MPa simultaneously, 10000m
3oxygen direct-furnish ironmaking, the steel rolling of/h use, and low oxygen pipeline 8 is provided with safety valve 12 in direct-furnish ironmaking, steel rolling place, guarantees safety in utilization.
Middle pressure oxygen channel 6 and low oxygen pipeline 8 are also provided with branch road and are connected to oxygen tank group 10, low oxygen pipeline 8 is also provided with arm 11 and is connected to let-down stations 5, connecting pipeline is provided with between middle pressure oxygen channel 6 and low oxygen pipeline 8, and on connecting pipeline, be provided with valve 13, when oxygen partial pressure supply system breaks down, middle pressure oxygen channel 6 and low oxygen pipeline 8 can realize the auxiliary function switching use by regulating valve 13 and related valve, ensure the oxygen regular supply needed for producing, avoid causing huge production loss.
Adopt oxygen partial pressure supply system of the present invention can energy saving greatly, reduce cost of production, concrete energy-saving benefit be:
Annual conveying low oxygen: 7.08 × 107m
3/year
Reducing electric quantity consumption is: 14250KWh × 365 day=5.2 × 106KWh
The whole year can saving power: 5.2 × 106KWh × 0.5=2.6 × 106 yuan (calculating according to 0.5 yuan/KWh)
Below be only the preferred embodiment of the present invention, it should be pointed out that above-mentioned preferred implementation should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with claim limited range.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. an oxygen partial pressure supply system, comprise oxygen compressor unit and let-down stations (5), it is characterized in that, described oxygen compressor unit includes an oxygen compressor (1), No. two oxygen compressors (2), No. three oxygen compressors (3) and No. four oxygen compressors (4), four oxygen compressors are connected to middle pressure oxygen channel (6) by pipeline, and middle pressure oxygen channel (6) is also connected with the oxygen that Oxygen turbocompressor (7) suppresses out supply 2.0MPa, flow to steel-making after middle pressure oxygen channel (6) is connected to let-down stations (5) step-down again to use, oxygen compressor unit is also provided with pipeline connection low oxygen pipeline (8) and suppresses out 0.8 ~ 1.0MPa simultaneously, 10000m
3oxygen direct-furnish ironmaking, the steel rolling of/h use.
2. oxygen partial pressure supply system according to claim 1, is characterized in that, described oxygen compressor unit is also connected with nitrogen compressor (9) the supply of nitrogen.
3. oxygen partial pressure supply system according to claim 2, is characterized in that, described middle pressure oxygen channel (6) and low oxygen pipeline (8) are also provided with branch road and are connected to oxygen tank group (10).
4. oxygen partial pressure supply system according to claim 3, is characterized in that, described low oxygen pipeline (8) is also provided with arm (11) and is connected to let-down stations (5).
5. oxygen partial pressure supply system according to claim 4, is characterized in that, described low oxygen pipeline (8) is provided with safety valve (12) in direct-furnish ironmaking, steel rolling place.
6. oxygen partial pressure supply system according to claim 5, it is characterized in that, be provided with connecting pipeline between described middle pressure oxygen channel (6) and low oxygen pipeline (8), and on connecting pipeline, be provided with valve (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510512548.9A CN105156892B (en) | 2015-08-20 | 2015-08-20 | A kind of oxygen partial pressure feed system |
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| CN201510512548.9A CN105156892B (en) | 2015-08-20 | 2015-08-20 | A kind of oxygen partial pressure feed system |
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| CN105156892A true CN105156892A (en) | 2015-12-16 |
| CN105156892B CN105156892B (en) | 2018-06-29 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106145066A (en) * | 2016-08-29 | 2016-11-23 | 芜湖新兴铸管有限责任公司 | A kind of iron and steel enterprise nitrogen production system |
| CN106641718A (en) * | 2017-01-17 | 2017-05-10 | 孔祥旭 | Partial-pressure nitrogen transporting system |
| CN106744697A (en) * | 2017-01-17 | 2017-05-31 | 孔祥旭 | A kind of super energy-conservation making oxygen by air separation device |
| CN106764434A (en) * | 2016-12-14 | 2017-05-31 | 四川德胜集团钒钛有限公司 | A kind of novel nitrogen feed system |
| CN109027684A (en) * | 2018-09-30 | 2018-12-18 | 四川德胜集团钒钛有限公司 | A kind of nitrogen supply (NS) system |
| CN111621615A (en) * | 2020-06-10 | 2020-09-04 | 中冶沈勘秦皇岛工程设计研究总院有限公司 | Device and method for shortening electric furnace steelmaking smelting period |
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| CN2440150Y (en) * | 2000-09-07 | 2001-07-25 | 攀枝花新钢钒股份有限公司氧气厂 | Oxygen supply device capable of realizing multistage partial pressure operation |
| JP2011157916A (en) * | 2010-02-03 | 2011-08-18 | Kazumi Hasegawa | Low pressure air supply system |
| CN103245167A (en) * | 2013-05-24 | 2013-08-14 | 济钢集团有限公司 | Running device and running method for loads of multiple machine sets of oxygenator to jointly vary |
| CN103451360A (en) * | 2013-09-11 | 2013-12-18 | 天津伟力盛世节能科技股份有限公司 | Oxygen delivery device |
| CN204387689U (en) * | 2014-12-24 | 2015-06-10 | 安阳钢铁股份有限公司 | Middle pressure oxygen safe storage transporting system |
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| CN2440150Y (en) * | 2000-09-07 | 2001-07-25 | 攀枝花新钢钒股份有限公司氧气厂 | Oxygen supply device capable of realizing multistage partial pressure operation |
| JP2011157916A (en) * | 2010-02-03 | 2011-08-18 | Kazumi Hasegawa | Low pressure air supply system |
| CN103245167A (en) * | 2013-05-24 | 2013-08-14 | 济钢集团有限公司 | Running device and running method for loads of multiple machine sets of oxygenator to jointly vary |
| CN103451360A (en) * | 2013-09-11 | 2013-12-18 | 天津伟力盛世节能科技股份有限公司 | Oxygen delivery device |
| CN204387689U (en) * | 2014-12-24 | 2015-06-10 | 安阳钢铁股份有限公司 | Middle pressure oxygen safe storage transporting system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106145066A (en) * | 2016-08-29 | 2016-11-23 | 芜湖新兴铸管有限责任公司 | A kind of iron and steel enterprise nitrogen production system |
| CN106764434A (en) * | 2016-12-14 | 2017-05-31 | 四川德胜集团钒钛有限公司 | A kind of novel nitrogen feed system |
| CN106764434B (en) * | 2016-12-14 | 2019-07-05 | 四川德胜集团钒钛有限公司 | A kind of novel nitrogen feed system |
| CN106641718A (en) * | 2017-01-17 | 2017-05-10 | 孔祥旭 | Partial-pressure nitrogen transporting system |
| CN106744697A (en) * | 2017-01-17 | 2017-05-31 | 孔祥旭 | A kind of super energy-conservation making oxygen by air separation device |
| CN109027684A (en) * | 2018-09-30 | 2018-12-18 | 四川德胜集团钒钛有限公司 | A kind of nitrogen supply (NS) system |
| CN111621615A (en) * | 2020-06-10 | 2020-09-04 | 中冶沈勘秦皇岛工程设计研究总院有限公司 | Device and method for shortening electric furnace steelmaking smelting period |
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| CN105156892B (en) | 2018-06-29 |
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