CN107503811A - A kind of afterheat generating system of end Sa boiler and converter boiler - Google Patents
A kind of afterheat generating system of end Sa boiler and converter boiler Download PDFInfo
- Publication number
- CN107503811A CN107503811A CN201710708681.0A CN201710708681A CN107503811A CN 107503811 A CN107503811 A CN 107503811A CN 201710708681 A CN201710708681 A CN 201710708681A CN 107503811 A CN107503811 A CN 107503811A
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- China
- Prior art keywords
- boiler
- converter
- heat boiler
- pressure steam
- conveyance conduit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
- F27D2017/006—Systems for reclaiming waste heat using a boiler
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The invention discloses a kind of afterheat generating system of end Sa boiler and converter boiler, it is related to afterheat generating system, including Chinese mugwort Sa waste heat boiler, Converter Residual Heat Boiler, middle pressure steam balance pipe and cogeneration station；The Chinese mugwort Sa waste heat boiler and Converter Residual Heat Boiler are arranged in parallel on middle pressure steam balance pipe, and the output end of middle pressure steam balance pipe is additionally provided with the first isolating valve；The cogeneration station is arranged on the output end of middle pressure steam balance pipe, and cogeneration station is provided with conveying water pipe, and the output end for conveying water pipe is provided with sweet-water tank.The present invention can not only make load in Converter Residual Heat Boiler keep stable, while Converter Residual Heat Boiler can be made to produce unnecessary steam in converting process and be delivered in cogeneration station and generated electricity, and be reasonably utilized the energy, prevent the waste of the energy.
Description
Technical field
The present invention relates to afterheat generating system, in particular to a kind of cogeneration of end Sa boiler and converter boiler
System.
Background technology
During being made steel using converter, the coal gas of converter of a large amount of high temperature can be produced, utilizes afterheat of converter gas
Boiler apparatus for vapour-cooling can produce steam.Due to the discontinuity of converter steelmaking process, the operation of converter is in periodically change
Change, be also discontinuous using steam caused by the sensible heat of coal gas of converter, while the parameter of the steam is relatively low, pressure, temperature tool
There is certain fluctuation, belong to the low-quality steam of low parameter.With attention of the iron and steel enterprise to energy-saving and emission-reduction, various waste heat recoveries
Technology is promoted in iron and steel enterprise, and the low-quality steam of low parameter obtained using various heat recovery technologies is more and more, this
Although a little steam disclosure satisfy that smelting process vapour, but steam caused by waste heat boiler is not utilized effectively, causes big portion
Steam discharging is divided to diffuse.Steam releasing result in the loss and waste of amount of heat and working medium (demineralized water), cause our factory energy consumption
Cost is too high, and steam directly discharge also produces larger noise pollution.
The content of the invention
It is an object of the invention to provide a kind of afterheat generating system of end Sa boiler and converter boiler, to solve above-mentioned ask
Topic.
To realize the object of the invention, the technical scheme that uses for：A kind of cogeneration system of end Sa boiler and converter boiler
System, including Chinese mugwort Sa waste heat boiler, Converter Residual Heat Boiler, middle pressure steam balance pipe and cogeneration station；The Chinese mugwort Sa waste heat boiler
It is arranged in parallel with Converter Residual Heat Boiler on middle pressure steam balance pipe, and the output end of middle pressure steam balance pipe is additionally provided with first
Isolating valve；The cogeneration station is arranged on the output end of middle pressure steam balance pipe, and cogeneration station is provided with conveying water pipe,
The output end of conveying water pipe is provided with sweet-water tank.
Further, in addition to low-pressure steam pipeline, it is provided with the Chinese mugwort Sa waste heat boiler and Converter Residual Heat Boiler
Decompressor, and Chinese mugwort Sa waste heat boiler and Converter Residual Heat Boiler are connected in parallel on low-pressure steam pipeline by decompressor；It is described low
The output end of pressure jet chimney is connected with gas utilization unit.
Further, the output end of the low-pressure steam pipeline has also been arranged in parallel exhaust steam conveyance conduit, and exhaust steam conveys
The output end of pipeline is connected with cogeneration station.
Further, drum is included in the Chinese mugwort Sa waste heat boiler and Converter Residual Heat Boiler, and drum is defeated by first
Pipeline is sent to be connected in parallel on middle pressure steam balance pipe.
Further, it is provided with main steam valve group on first conveyance conduit；The air inlet of first conveyance conduit
End has also been arranged in parallel discharge duct, steam evacuation valve group is provided with discharge duct, and the output end of discharge duct is set
There is muffler.
Further, the shunt conduit being connected with low-pressure steam pipeline is also arranged in parallel on first conveyance conduit,
Decompressor is arranged in shunt conduit, and main steam valve group is between discharge duct and shunt conduit.
Further, the second conveyance conduit has also been arranged in parallel on the first conveyance conduit in the Converter Residual Heat Boiler,
And second conveyance conduit one end and Converter Residual Heat Boiler in drum connection, the other end of the second delivery pipe is located at main steam valve
Between Men Zuyu shunt conduits.
Further, the output end of first conveyance conduit is additionally provided with the second isolating valve.
The beneficial effects of the invention are as follows,
1. when Converter Residual Heat Boiler load is too low, the first isolating valve is closed, the second isolating valve is opened, makes hot pot more than Chinese mugwort Sa
A part of steam in stove enters Converter Residual Heat Boiler by middle pressure steam balance pipe, to stablize the operating mode of Converter Residual Heat Boiler,
Make Converter Residual Heat Boiler operation more safety and steady；When bessemerizing, after Converter Residual Heat Boiler flue is heated, open first every
From valve and the second isolating valve, Converter Residual Heat Boiler directly produces middle pressure steam using flue gas heat, now by Converter Residual Heat Boiler
Middle pressure steam in caused middle pressure steam and Ai Sa waste heat boiler enters cogeneration station after middle pressure steam balance pipe converges
Generated electricity, and caused condensate is delivered in sweet-water tank and fully reused in power generation process.The present invention is not only
The load in Converter Residual Heat Boiler can be made to keep stable, while Converter Residual Heat Boiler can be made to produce unnecessary steaming in converting process
Vapour is delivered in cogeneration station and generated electricity, and is reasonably utilized the energy, prevents the waste of the energy.
2. by setting decompressor on the first conveyance conduit, in making in Converter Residual Heat Boiler and Ai Sa waste heat boilers
Caused low-pressure steam can be directly used for gas equipment after pressure steam can be depressurized, while unnecessary low-pressure steam can directly lead to
Cross exhaust steam conveyance conduit and be delivered in cogeneration station and generated electricity.
3. caused steam can also pass through the exhaust on the first conveyance conduit in Converter Residual Heat Boiler and Ai Sa waste heat boilers
Pipeline is directly vented, and avoids superpressure in drum, and muffler can make steam reduce the generation of noise during emptying, improve
Working environment.
Brief description of the drawings
Fig. 1 is the structure chart of the afterheat generating system of Chinese mugwort Sa boiler and converter boiler provided by the invention；
Mark and corresponding parts title in accompanying drawing：
1st, Converter Residual Heat Boiler, 2, Chinese mugwort Sa waste heat boiler, 3, middle pressure steam balance pipe, 4, low-pressure steam pipeline, 5, waste heat
Power station, 6, drum, the 7, first conveyance conduit, the 8, second conveyance conduit, 9, discharge duct, 10, steam evacuation valve group, 11, disappear
Sound device, 12, main steam valve group, 13, shunt conduit, 14, decompressor, the 15, first isolating valve, the 16, second isolating valve, 17,
Gas equipment, 18, conveying water pipe, 19, sweet-water tank, 20, exhaust steam conveyance conduit.
Embodiment
The present invention is described in further detail below by specific examples of the implementation and with reference to accompanying drawing.
A kind of shown afterheat generating systems of end Sa boiler and converter boiler provided by the invention of Fig. 1, including converter
Waste heat boiler 1, Chinese mugwort Sa waste heat boiler 2, middle pressure steam balance pipe 3, cogeneration station 5；The Converter Residual Heat Boiler 1 and Ai Sayu
Heat boiler 2 is arranged in parallel on middle pressure steam balance pipe 3, and the output end of middle pressure steam balance pipe 3 is additionally provided with the first isolation
Valve 15；The cogeneration station 5 is arranged on the output end of middle pressure steam balance pipe 3, and cogeneration station 5 is provided with conveying water pipe
18, the output end of conveying water pipe 18 is provided with sweet-water tank 19.
When the load of Converter Residual Heat Boiler 1 is too low, the first isolating valve 15 is closed, makes the part in Chinese mugwort Sa waste heat boiler 2
Steam enters Converter Residual Heat Boiler 1 by middle pressure steam balance pipe 3, to stablize the operating mode of Converter Residual Heat Boiler 1, makes converter waste heat
Boiler 1 runs more safety and steady；When Converter Residual Heat Boiler 1 blows, the first isolating valve 15, the profit of Converter Residual Heat Boiler 1 are opened
Middle pressure steam is directly produced with flue gas heat, now by caused by Converter Residual Heat Boiler 1 in middle pressure steam and Ai Sa waste heat boilers 2
Middle pressure steam generated electricity after middle pressure steam balance pipe 3 converges into cogeneration station 5, it is and caused solidifying in power generation process
Bear water to be delivered in sweet-water tank 19 and fully reacted.
This practical invention also includes low-pressure steam pipeline 4, is all provided with the Converter Residual Heat Boiler 1 and Ai Sa waste heat boilers 2
Decompressor 14 is equipped with, and Converter Residual Heat Boiler 1 and Ai Sa waste heat boilers 2 are connected in parallel on low-pressure steam pipeline by decompressor 14
On 4；The output end of the low-pressure steam pipeline 4 is connected with gas utilization unit.
When gas equipment 17 needs to use gas, Converter Residual Heat Boiler 1 or the decompression dress to end on Sa waste heat boiler 2 are now opened
14 are put, the middle pressure steam in Converter Residual Heat Boiler 1 or Chinese mugwort Sa waste heat boiler 2 is carried out by decompression generation low pressure by decompressor 14
Steam, this caused low-pressure steam can be fed directly to gas equipment 17 by low-pressure steam pipeline 4 and be used, and use gas
Equipment 17 uses more safe ready.
The output end of the low-pressure steam pipeline 4 has also been arranged in parallel exhaust steam conveyance conduit 20, and exhaust steam conveyance conduit 20
Output end be connected with cogeneration station 5, stop valve method and gate valve are provided with exhaust steam pipeline, when in low-pressure steam pipeline 4
When low-pressure steam is excessive, can open stop valve and gate valve makes unnecessary low-pressure steam be delivered to waste heat by exhaust steam conveyance conduit 20
Generated electricity in power station 5, unnecessary low-pressure steam is reasonably utilized.
Include drum 6 in the Converter Residual Heat Boiler 1 and Ai Sa waste heat boilers 2, and drum 6 passes through the first conveyance conduit
7 are connected in parallel on middle pressure steam balance pipe 3, make middle pressure steam caused by drum 6 in Converter Residual Heat Boiler 1 and Ai Sa waste heat boilers 2
It is directly transferred to by the first conveyance conduit 7 in middle pressure steam balance pipe 3.Main steam is provided with first conveyance conduit 7
Valve group 12, main steam valve group 12 include valve group I and the valve group II being connected in parallel in valve group I, and valve group I includes setting
Two stop valves and a hydraulic valve on the first conveyance conduit 7, hydraulic valve is between two stop valves；Valve group
II is also stop valve.The inlet end of first conveyance conduit 7 has also been arranged in parallel discharge duct 9, is provided with discharge duct 9
Steam evacuation valve group, and the output end of discharge duct 9 is provided with muffler 11, discharge duct 9 is used to enter the steam of drum 6
Row emptying, muffler 11 can reduce steam in noise caused by emptying, improvement working environment.
The shunt conduit 13 being connected with low-pressure steam pipeline 4, decompression dress are also arranged in parallel on first conveyance conduit 7
Put 14 to be arranged in shunt conduit 13, and main steam valve group 12 is between discharge duct 9 and shunt conduit 13, make first defeated
The middle pressure steam in pipeline 7 is sent by decompressor 14 to carry out decompression and form low-pressure steam being delivered in low-pressure steam pipeline 4.Institute
State and the second conveyance conduit 8 has also been arranged in parallel on the first conveyance conduit 7 in Converter Residual Heat Boiler 1, and the second conveyance conduit 8
One end is connected with the drum 6 in Converter Residual Heat Boiler 1, and the other end of the second delivery pipe is located at main steam valve group 12 and isocon
Between road 13.The output end of first conveyance conduit 7 is additionally provided with the second isolating valve 16, makes middle pressure steam in course of conveying
It is safer, convenient control.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (8)
1. a kind of afterheat generating system of end Sa boiler and converter boiler, it is characterised in that more than Chinese mugwort Sa waste heat boiler, converter
Heat boiler, middle pressure steam balance pipe and cogeneration station；Converter Residual Heat Boiler and the Ai Sa waste heat boiler is arranged in parallel
On middle pressure steam balance pipe, and the output end of middle pressure steam balance pipe is additionally provided with the first isolating valve；The cogeneration station peace
Mounted in the output end of middle pressure steam balance pipe, and cogeneration station is provided with conveying water pipe, and the output end for conveying water pipe is provided with
Sweet-water tank.
2. the afterheat generating system of Chinese mugwort Sa boiler according to claim 1 and converter boiler, it is characterised in that also including low
Press jet chimney, decompressor be provided with the Chinese mugwort Sa waste heat boiler and Converter Residual Heat Boiler, and end Sa waste heat boiler and
Converter Residual Heat Boiler is connected in parallel on low-pressure steam pipeline by decompressor；The output end of the low-pressure steam pipeline with vapour with being set
Standby connection.
3. the afterheat generating system of Chinese mugwort Sa boiler according to claim 2 and converter boiler, it is characterised in that the low pressure
The output end of jet chimney has also been arranged in parallel exhaust steam conveyance conduit, and the output end of exhaust steam conveyance conduit connects with cogeneration station
Connect.
4. the afterheat generating system of Chinese mugwort Sa boiler according to claim 2 and converter boiler, it is characterised in that the Chinese mugwort Sa
Include drum in waste heat boiler and Converter Residual Heat Boiler, and drum is connected in parallel on middle pressure steam balance pipe by the first conveyance conduit
On.
5. the afterheat generating system of Chinese mugwort Sa boiler according to claim 4 and converter boiler, it is characterised in that described first
Main steam valve group is provided with conveyance conduit；The inlet end of first conveyance conduit has also been arranged in parallel discharge duct, row
Steam evacuation valve group is provided with feed channel, and the output end of discharge duct is provided with muffler.
6. the afterheat generating system of the Chinese mugwort Sa boiler and converter boiler according to claim 4 or 5, it is characterised in that described
The shunt conduit being connected with low-pressure steam pipeline is also arranged in parallel on first conveyance conduit, decompressor is arranged on shunt conduit
On, and main steam valve group is between discharge duct and shunt conduit.
7. the afterheat generating system of Chinese mugwort Sa boiler according to claim 4 and converter boiler, it is characterised in that the converter
The second conveyance conduit, and one end of the second conveyance conduit and converter have also been arranged in parallel on the first conveyance conduit in waste heat boiler
Drum connection in waste heat boiler, the other end of the second delivery pipe is between main steam valve group and shunt conduit.
8. the afterheat generating system of Chinese mugwort Sa boiler according to claim 7 and converter boiler, it is characterised in that described first
The output end of conveyance conduit is additionally provided with the second isolating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710708681.0A CN107503811A (en) | 2017-08-17 | 2017-08-17 | A kind of afterheat generating system of end Sa boiler and converter boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710708681.0A CN107503811A (en) | 2017-08-17 | 2017-08-17 | A kind of afterheat generating system of end Sa boiler and converter boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107503811A true CN107503811A (en) | 2017-12-22 |
Family
ID=60691305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710708681.0A Pending CN107503811A (en) | 2017-08-17 | 2017-08-17 | A kind of afterheat generating system of end Sa boiler and converter boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107503811A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101096917A (en) * | 2007-06-11 | 2008-01-02 | 上海外高桥第三发电有限责任公司 | Electric generating set side road control method |
| CN102385356A (en) * | 2011-07-08 | 2012-03-21 | 中钢集团鞍山热能研究院有限公司 | Optimizing control method for sintering waste heat power generation system |
| CN202431313U (en) * | 2011-12-29 | 2012-09-12 | 鞍钢集团工程技术有限公司 | Power generation system using steam surplus steam |
-
2017
- 2017-08-17 CN CN201710708681.0A patent/CN107503811A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101096917A (en) * | 2007-06-11 | 2008-01-02 | 上海外高桥第三发电有限责任公司 | Electric generating set side road control method |
| CN102385356A (en) * | 2011-07-08 | 2012-03-21 | 中钢集团鞍山热能研究院有限公司 | Optimizing control method for sintering waste heat power generation system |
| CN202431313U (en) * | 2011-12-29 | 2012-09-12 | 鞍钢集团工程技术有限公司 | Power generation system using steam surplus steam |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171222 |
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| RJ01 | Rejection of invention patent application after publication |