CN108224392A - Converter residual neat recovering system storage heater steam energy saving method - Google Patents
Converter residual neat recovering system storage heater steam energy saving method Download PDFInfo
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- CN108224392A CN108224392A CN201711307548.0A CN201711307548A CN108224392A CN 108224392 A CN108224392 A CN 108224392A CN 201711307548 A CN201711307548 A CN 201711307548A CN 108224392 A CN108224392 A CN 108224392A
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- steam
- storage heater
- pressure regulation
- valve group
- regulation valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
- F22B1/183—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines in combination with metallurgical converter installations
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4606—Lances or injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D1/00—Steam central heating systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Pipeline Systems (AREA)
Abstract
The present invention relates to a kind of converter residual neat recovering system storage heater steam energy saving methods, pressure in the Opening pressure of pressure regulation valve group and storage heater is compared, in storage heater during pressure≤2MPa, pressure regulation valve group opens 25%, the open degree of pressure regulation valve group is scaling up in storage heater during pressure ＞ 2MPa, until pressure regulation valve group is all turned on；During winter production, steam supply is carried out with steam pipe road to life；When needing to seal offer steam to oxygen rifle mouth, oxygen rifle mouth sealed steam pipeline is introduced steam into；At this time such as storage heater failure, then 1MPa pressure regulation valve group, pressure regulation valve group and valve one, valve three are closed, the needs of life vapour and oxygen rifle mouth sealed steam are met by introducing outsourcing steam.The present invention realizes a certain amount of steam of storage in storage heater, effectively reduces production cost by increasing pressure regulation valve group；It is controlled by the combination of each valve, normal conveying when realizing storage heater failure to life steam and oxygen rifle mouth sealing steam.
Description
Technical field
The present invention relates to technical field of energy utilization more particularly to a kind of converter residual neat recovering system storage heater steam are energy saving
Utilize method.
Background technology
In steelwork converter converting process, due to violent oxidation reaction, have a large amount of high-temperature furnace gas and escaped from fire door,
Contain 86% or so CO and a small amount of CO in furnace gas2, temperature is up to 1500 DEG C or more.After furnace gas plug for outlet, with a small amount of air
It burns, the theoretical temperature combustion of flue gas is up to 2000 DEG C or so.Still it is containing 60~70% CO in flue gas after burning
Recycling this coal gas of converter, converter is usually provided with waste heat boiler, so that high-temperature flue gas is cooled down, and recovered flue gas heat
Amount generates steam.The operation principle of storage heater is the heat accumulation function using water, and thermal energy is stored in the form of saturated water,
And then turbine generating system is coordinated to be used for steam-electric power.
Since the steam flow that converter waste heat recovery generates is unstable, supply power generation is sometimes rich sometimes insufficient therefore logical
Normal vapour system also needs to steam-out (SO) and sends pipeline and steam outsourcing pipeline outside, and when steam affluence is sent outside, outsourcing when insufficient, with this
Meet production needs.But current steam regulating system is adjusted according to the needs of steam turbine, as long as disclosure satisfy that
It (is actually that can store a part of steam in storage heater that the residual steam needed in storage heater of steam turbine, which will be sent outside,
), due to sending price of the price well below outsourcing steam of steam outside, so as to cause the rising of production cost.
In addition, in winter in production process, if storage heater burst accident, it is impossible to normally send vapour, then life warming installation,
The heat tracing vapour and oxygen rifle mouth of equipment, which block steam, can all lose steam source, and consequence is extremely serious.
Invention content
The present invention provides a kind of converter residual neat recovering system storage heater steam energy saving method, by increasing pressure regulator valve
Group realizes a certain amount of steam of storage in storage heater, effectively reduces production cost；It is controlled by the combination of each valve, realizes and store
To the normal conveying of life steam and oxygen rifle mouth sealing steam during hot device failure.
In order to achieve the above object, the present invention is realized using following technical scheme：
Converter residual neat recovering system storage heater steam energy saving method, includes the following steps：
1) converter residual neat recovering system includes waste heat boiler and storage heater, and the steam of waste heat boiler affluence is sent into storage heater；
Storage heater connects life steam pipe road by steam conveying pipe, and sets 1MPa on the steam conveying pipe of storage heater one end
Pressure regulation valve group, close to life with setting 0.3MPa pressure regulation valve groups on the steam conveying pipe of steam pipe road one end；
2) be additionally provided on steam conveying pipe and send steam (vapor) outlet and outsourcing steam inlet outside, wherein send outside steam (vapor) outlet with it is outer
Jet chimney is sent to be connected, outsourcing steam inlet is connected with outsourcing jet chimney；Steam is sent outside close to send steam (vapor) outlet outside
Valve one is set on pipeline, valve two is set on the outsourcing jet chimney of outsourcing steam inlet；Storage heater is with sending jet chimney outside
Close steam outlet of sending outside sets pressure regulation valve group, storage heater and outsourcing jet chimney linkage section on the steam conveying pipe of linkage section
Steam conveying pipe on set valve three at the outsourcing steam inlet；
3) steam that outsourcing jet chimney is connected by reject steam pipeline between 1MPa pressure regulation valve group and pressure regulation valve group is defeated
Pipeline is sent, gate valve and the outlet of oxygen rifle mouth sealed steam, oxygen rifle mouth sealed steam outlet connection oxygen rifle mouth are set on reject steam pipeline
Sealed steam pipeline sets valve four on the oxygen rifle mouth sealed steam pipeline of oxygen rifle mouth sealed steam outlet；
4) during normal production, 1MPa pressure regulation valve group, pressure regulation valve group and valve one, two, three are opened；By the unlatching of pressure regulation valve group
Pressure is compared with pressure in storage heater, and in storage heater during pressure≤2MPa, pressure regulation valve group opens 25%, pressure in storage heater
The open degree of pressure regulation valve group is scaling up during ＞ 2MPa, when pressure ＞ 2.7MPa in storage heater, pressure regulation valve group is all opened
It opens；
5) during winter production, 0.3MPa pressure regulation valve groups is opened, steam supply is carried out with steam pipe road to life；When needing to oxygen rifle mouth
When sealing provides steam, valve four is opened, introduces steam into oxygen rifle mouth sealed steam pipeline；At this time as event occurs in storage heater
Barrier, then close 1MPa pressure regulation valve group, pressure regulation valve group and valve one, valve three, meet life steam by introducing outsourcing steam
And the needs of oxygen rifle mouth sealing steam.
The valve one, valve two and valve three are shut-off valve.
Compared with prior art, the beneficial effects of the invention are as follows：
1) a part of steam is stored using accumulator, reduces to give a long price for steam, sends steam outside at a low price and cause to be produced into
The phenomenon that this rising；
2) solve when producing in winter, in the case of maintenance that storage heater breaks down or storage heater is met an urgent need, influence equipment and
The problem of personnel's heating life steam；
It 3), can be by the switching of valve group, with outer such as storage heater failure or maintenance when the sealing of oxygen rifle mouth is using steam seal
Purchase steam achievees the purpose that protect production.
Description of the drawings
Fig. 1 is the schematic diagram of converter residual neat recovering system storage heater steam energy saving method of the present invention.
In figure：1. 2. steam conveying pipe 3.1MPa pressure regulation valve group 4. of storage heater life steam pipe road 5.0.3MPa tune
Pressure valve group 6. sends 2 10. pressure regulation valve group of jet chimney 7. valve, one 8. outsourcing jet chimney, 9. valve, 11. valve three outside
12. 13. gate valve of reject steam pipeline, 14. oxygen rifle mouth sealed steam pipeline, 15. valve four
Specific embodiment
The specific embodiment of the present invention is described further below in conjunction with the accompanying drawings：
As shown in Figure 1, converter residual neat recovering system storage heater steam energy saving method of the present invention, including walking as follows
Suddenly：
1) converter residual neat recovering system includes waste heat boiler and storage heater 1, and the steam of waste heat boiler affluence is sent into storage heater
1；Storage heater 1 connects life steam pipe road 4 by steam conveying pipe 2, and close to the steam conveying pipe 2 of 1 one end of storage heater
On set 1MPa pressure regulation valve group 3, close to life with setting 0.3MPa pressure regulation valve group 5 on the steam conveying pipe 2 of 4 one end of steam pipe road；
2) be additionally provided on steam conveying pipe 2 and send steam (vapor) outlet and outsourcing steam inlet outside, wherein send outside steam (vapor) outlet with
It sends jet chimney 6 outside to be connected, outsourcing steam inlet is connected with outsourcing jet chimney 8；It is close to send sending outside for steam (vapor) outlet outside
Valve 1 is set on jet chimney 6, valve 29 is set on the outsourcing jet chimney 8 of outsourcing steam inlet；Storage heater 1 is with sending outside
Pressure regulation valve group 10, storage heater 1 and outsourcing are set close to sending steam outlet outside on the steam conveying pipe 2 of 6 linkage section of jet chimney
On the steam conveying pipe 2 of 8 linkage section of jet chimney valve 3 11 is set at outsourcing steam inlet；
3) outsourcing jet chimney 8 is connected by reject steam pipeline 12 between 1MPa pressure regulation valve group 3 and pressure regulation valve group 10
Steam conveying pipe 2 sets gate valve 13 and the outlet of oxygen rifle mouth sealed steam, the outlet of oxygen rifle mouth sealed steam on reject steam pipeline 12
Oxygen rifle mouth sealed steam pipeline 14 is connected, valve is set on the oxygen rifle mouth sealed steam pipeline 14 of oxygen rifle mouth sealed steam outlet
4 15；
4) during normal production, 1MPa pressure regulation valve group 3, pressure regulation valve group 10 and valve one, two, 37,8,11 are opened；By pressure regulation
The Opening pressure of valve group 10 is compared with pressure in storage heater 1, and in storage heater 1 during pressure≤2MPa, pressure regulation valve group 10 is opened
25%, the open degree of pressure regulation valve group 10 is scaling up in storage heater 1 during pressure ＞ 2MPa, until pressure ＞ in storage heater 1
During 2.7MPa, pressure regulation valve group 10 is all turned on；
5) during winter production, 0.3MPa pressure regulation valve group 5 is opened, steam supply is carried out with steam pipe road 4 to life；When needing to oxygen rifle
When mouth sealing provides steam, valve 4 15 is opened, introduces steam into oxygen rifle mouth sealed steam pipeline 14；At this time such as storage heater 1
It breaks down, then closes 1MPa pressure regulation valve group 3, pressure regulation valve group 10 and valve 1, valve 3 11, expired by introducing outsourcing steam
The needs of foot life steam and oxygen rifle mouth sealing steam.
The valve 1, valve 29 and valve 3 11 are shut-off valve.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (2)
1. converter residual neat recovering system storage heater steam energy saving method, which is characterized in that include the following steps：
1) converter residual neat recovering system includes waste heat boiler and storage heater, and the steam of waste heat boiler affluence is sent into storage heater；Accumulation of heat
Device connects life steam pipe road by steam conveying pipe, and sets 1MPa pressure regulation on the steam conveying pipe of storage heater one end
Valve group, close to life with setting 0.3MPa pressure regulation valve groups on the steam conveying pipe of steam pipe road one end；
2) it is additionally provided on steam conveying pipe and sends steam (vapor) outlet and outsourcing steam inlet outside, wherein sending steam (vapor) outlet outside and sending steaming outside
Steam pipe road is connected, and outsourcing steam inlet is connected with outsourcing jet chimney；Jet chimney is sent outside close to send steam (vapor) outlet outside
On set valve one, close to outsourcing steam inlet outsourcing jet chimney on set valve two；Storage heater is connect with sending jet chimney outside
Close steam outlet of sending outside sets pressure regulation valve group, the steaming of storage heater and outsourcing jet chimney linkage section on the steam conveying pipe of section
On vapour conveyance conduit valve three is set at outsourcing steam inlet；
3) outsourcing jet chimney connects the steam pipeline between 1MPa pressure regulation valve group and pressure regulation valve group by reject steam pipeline
Road sets gate valve and the outlet of oxygen rifle mouth sealed steam, oxygen rifle mouth sealed steam outlet connection oxygen rifle mouth sealing on reject steam pipeline
Jet chimney sets valve four on the oxygen rifle mouth sealed steam pipeline of oxygen rifle mouth sealed steam outlet；
4) during normal production, 1MPa pressure regulation valve group, pressure regulation valve group and valve one, two, three are opened；By the Opening pressure of pressure regulation valve group
It is compared with pressure in storage heater, in storage heater during pressure≤2MPa, pressure regulation valve group opens 25%, pressure ＞ in storage heater
The open degree of pressure regulation valve group is scaling up during 2MPa, when pressure ＞ 2.7MPa in storage heater, pressure regulation valve group is all turned on；
5) during winter production, 0.3MPa pressure regulation valve groups is opened, steam supply is carried out with steam pipe road to life；When need to oxygen rifle mouth seal
When steam is provided, valve four is opened, introduces steam into oxygen rifle mouth sealed steam pipeline；Such as storage heater breaks down at this time, then
1MPa pressure regulation valve group, pressure regulation valve group and valve one, valve three are closed, meets life steam and oxygen rifle by introducing outsourcing steam
The needs of mouth sealed steam.
2. converter residual neat recovering system storage heater steam energy saving method according to claim 1, which is characterized in that institute
It is shut-off valve to state valve one, valve two and valve three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711307548.0A CN108224392B (en) | 2017-12-11 | 2017-12-11 | Converter residual neat recovering system storage heater steam energy saving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711307548.0A CN108224392B (en) | 2017-12-11 | 2017-12-11 | Converter residual neat recovering system storage heater steam energy saving method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108224392A true CN108224392A (en) | 2018-06-29 |
| CN108224392B CN108224392B (en) | 2019-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711307548.0A Active CN108224392B (en) | 2017-12-11 | 2017-12-11 | Converter residual neat recovering system storage heater steam energy saving method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748912A (en) * | 2018-07-24 | 2020-02-04 | 青岛科技大学 | Power station boiler waste heat utilization system based on smoke temperature communication control valve |
| CN110748913A (en) * | 2018-07-24 | 2020-02-04 | 青岛科技大学 | Power station boiler waste heat utilization system based on heat storage air temperature communication control |
| CN114540572A (en) * | 2022-02-25 | 2022-05-27 | 重庆钢铁股份有限公司 | Converter waste heat boiler steam self-using system and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0933005A (en) * | 1995-07-20 | 1997-02-07 | Toshiba Corp | Water feeding device for waste heat recovery boiler |
| CN1361293A (en) * | 2000-12-26 | 2002-07-31 | 首钢总公司 | Plant for using converter produced vapor in vacuum refining furnace |
| CN203295546U (en) * | 2013-05-13 | 2013-11-20 | 中冶南方工程技术有限公司 | Steam superheating system of converter |
| CN104232846A (en) * | 2014-09-19 | 2014-12-24 | 马钢(集团)控股有限公司 | System and method for supplying steam to RH refining furnace |
| CN204325413U (en) * | 2014-09-19 | 2015-05-13 | 马钢(集团)控股有限公司 | A kind of system to RH refining furnace steam supply |
| CN205329105U (en) * | 2015-12-10 | 2016-06-22 | 武汉钢铁(集团)公司 | Steam superheating device and RH vacuum treatment installation do steam system with overheated saturation |
| CN205784642U (en) * | 2016-05-31 | 2016-12-07 | 湖南省冶金规划设计院 | Steelmaking converter flue gas waste heat recovery system |
-
2017
- 2017-12-11 CN CN201711307548.0A patent/CN108224392B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0933005A (en) * | 1995-07-20 | 1997-02-07 | Toshiba Corp | Water feeding device for waste heat recovery boiler |
| CN1361293A (en) * | 2000-12-26 | 2002-07-31 | 首钢总公司 | Plant for using converter produced vapor in vacuum refining furnace |
| CN203295546U (en) * | 2013-05-13 | 2013-11-20 | 中冶南方工程技术有限公司 | Steam superheating system of converter |
| CN104232846A (en) * | 2014-09-19 | 2014-12-24 | 马钢(集团)控股有限公司 | System and method for supplying steam to RH refining furnace |
| CN204325413U (en) * | 2014-09-19 | 2015-05-13 | 马钢(集团)控股有限公司 | A kind of system to RH refining furnace steam supply |
| CN205329105U (en) * | 2015-12-10 | 2016-06-22 | 武汉钢铁(集团)公司 | Steam superheating device and RH vacuum treatment installation do steam system with overheated saturation |
| CN205784642U (en) * | 2016-05-31 | 2016-12-07 | 湖南省冶金规划设计院 | Steelmaking converter flue gas waste heat recovery system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748912A (en) * | 2018-07-24 | 2020-02-04 | 青岛科技大学 | Power station boiler waste heat utilization system based on smoke temperature communication control valve |
| CN110748913A (en) * | 2018-07-24 | 2020-02-04 | 青岛科技大学 | Power station boiler waste heat utilization system based on heat storage air temperature communication control |
| CN114540572A (en) * | 2022-02-25 | 2022-05-27 | 重庆钢铁股份有限公司 | Converter waste heat boiler steam self-using system and method |
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| Publication number | Publication date |
|---|---|
| CN108224392B (en) | 2019-09-20 |
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