CN107152316A - A kind of gradient utilization system of steam energy - Google Patents
A kind of gradient utilization system of steam energy Download PDFInfo
- Publication number
- CN107152316A CN107152316A CN201710568862.8A CN201710568862A CN107152316A CN 107152316 A CN107152316 A CN 107152316A CN 201710568862 A CN201710568862 A CN 201710568862A CN 107152316 A CN107152316 A CN 107152316A
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- China
- Prior art keywords
- branch road
- steam turbine
- steam
- energy
- exhaust line
- 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
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
-
- 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
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
- F01K17/025—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic in combination with at least one gas turbine, e.g. a combustion gas turbine
-
- 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)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
A kind of gradient utilization system of steam energy, including small steam turbine, admission passage, exhaust line and generator, admission passage are connected with the admission end of small steam turbine, and exhaust line is connected with the exhaust end of small steam turbine, and generator is connected with small steam turbine；Admission passage is connected with large-size steam turbine；Exhaust line includes heating branch road and desuperheat branch road in parallel, and heating branch road is provided with heat primary air heater, and desuperheat branch road is provided with attemperator.The present invention is in the form of small steam turbine drawing generator to existing Large-scale machine set（Large-size steam turbine）Extract steam out and carry out heat supply after first generating electricity, reach energy-saving purpose, steam utilization is high；System operation flexibly, realizes the efficient cascade utilization of steam energy, while improving the net electricity volume of power plant, improves economic benefit, social benefit and the environmental benefit of enterprise.
Description
Technical field
The present invention relates to thermal power plant design field, a kind of gradient utilization system of steam energy is specifically related to.
Background technology
As each enterprise and society are with can be increasingly vigorous with heat demand, using central heating, high efficiency of energy step profit is realized
Turn into national and thermal power plant active demand with effective administration of energy conservation.
The heat supply mode in conventional thermal power plant, to be required according to heating parameter, by existing Large-scale machine set（Large-scale steamer
Machine）The relatively high parameter steam extracted out first directly carries out pressure and temperature reducing, then external heat supply, and energy can be caused by heat supply after pressure and temperature reducing
The heavy losses in source, the situation of generally existing steam " high product are low to be used ", steam utilization is low, and energy waste is serious.
The content of the invention
The technical problems to be solved by the invention are to overcome the shortcomings of above-mentioned background technology there is provided a kind of steam utilization
The gradient utilization system of high steam energy.
The present invention solve its technical problem use technical scheme be, a kind of gradient utilization system of steam energy, including
Small steam turbine, admission passage, exhaust line and generator, the admission passage are connected with the admission end of small steam turbine, institute
State exhaust line with the exhaust end of small steam turbine to be connected, the generator is connected with small steam turbine；The admission passage with
Large-size steam turbine is connected；The exhaust line includes heating branch road and desuperheat branch road in parallel, and the heating branch road is provided with warm
Air heating device, the desuperheat branch road is provided with attemperator.
Further, the small steam turbine selects back pressure turbine.
Further, the admission passage include two it is in parallel enter vapour branch road, every enter be sequentially provided with vapour branch road it is pneumatic
Non-return valve, the first electric gate valve, the first pneumatic control valve, the second electric gate valve, first manual gate valve.
Further, the large-size steam turbine enters vapour branch road with one therein or two are entered vapour branch road and are connected.
Further, be also sequentially provided with the heating branch road of the exhaust line the 3rd electric gate valve, the second pneumatic control valve,
4th electric gate valve；The 5th electric gate valve is additionally provided with the desuperheat branch road.
Compared with prior art, advantages of the present invention is as follows：To big in the form of small steam turbine drawing generator
Type unit（Large-size steam turbine）Extract steam out and carry out heat supply after first generating electricity, reach energy-saving purpose, steam utilization is high.This
Invention system flexible operation, realizes the efficient cascade utilization of steam energy, while improving the net electricity volume of power plant, improves enterprise
Economic benefit, social benefit and environmental benefit.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
In figure：1-admission passage, 2-small steam turbine, 3-exhaust line, 4-heat primary air heater, 5-subtract
Warm device, 6-generator.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail to the present invention.
Reference picture 1, the present embodiment includes small steam turbine 2, admission passage 1, exhaust line 3 and generator 6, admission passage
1 is connected with the admission end of small steam turbine 2, and exhaust line 3 is connected with the exhaust end of small steam turbine 2, generator 6 and small size gasoline
Turbine 2 is connected；Admission passage 1 and large-size steam turbine（Not shown in figure）It is connected；Small steam turbine 2 selects back pressure turbine；
Admission passage 1 include two it is in parallel enter vapour branch road, every is entered to be sequentially provided with Pneumatic check valve, the first electric brake on vapour branch road
Valve, the first pneumatic control valve, the second electric gate valve, first manual gate valve, large-size steam turbine with one therein enter vapour branch road or
Two are entered vapour branch road and are connected, and large-size steam turbine, which draws gas, to switch over steam supply to small steam turbine 2, can also be simultaneously to small-sized
The steam supply of steam turbine 2；Exhaust line 3 includes heating branch road and desuperheat branch road in parallel, and heating branch road is heated provided with heat primary air
Device 4, desuperheat branch road be provided with attemperator 5, heating branch road on be also sequentially provided with the 3rd electric gate valve, the second pneumatic control valve,
4th electric gate valve；The 5th electric gate valve is additionally provided with desuperheat branch road.
Operation principle of the present invention is as follows：
The extraction steam of large-size steam turbine enters small steam turbine 2 through admission passage 1, and small steam turbine 2 converts steam thermal energy
Generated electricity for mechanical energy for generator 6, the electric energy produced through generator 6 is for Station Service Electrical-Energy where large-size steam turbine；Miniature steamer
Vapor (steam) temperature after machine 2 does work is reduced, and is discharged through exhaust line 3, steam may be heated branch road or desuperheat branch road or while pass through
This two branch roads are crossed, by heating during branch road, steam provides heat to heat primary air heater 4, and heat primary air is added
Heat, after vapor (steam) temperature is further reduced, then external heat supply；During by desuperheat branch road, after steam cools through attemperator 5, then it is right
In vapor (steam) temperature and heating branch road on outer heat supply, desuperheat branch road after the desuperheat of attemperator 5 after heat primary air heater 4
Vapor (steam) temperature（Temperature is identical）.
Two of admission passage 1 enter vapour branch road can simultaneously to the steam supply of small steam turbine 2, can also one to enter vapour branch road independent
What the mode of steam supply met back pressure turbine enters vapour requirement, and this sets flexible operation.After back pressure turbine acting generates electricity, the back of the body
The steam discharge heating heat primary air of pressure type steam turbine, is then used further to external heat supply.When heat primary air need not be heated, the back of the body
The steam discharge of pressure type steam turbine can pass through externally heat supply after desuperheat branch road, appropriate pressure and temperature reducing.
The present invention is in the form of back pressure turbine drawing generator to existing Large-scale machine set（Large-size steam turbine）Extract out and steam
Vapour carries out heat supply after first generating electricity, and reaches energy-saving purpose, and steam utilization is high.Present system flexible operation, realizes and steams
The efficient cascade utilization of vapour energy, while improving the net electricity volume of power plant, improves economic benefit, social benefit and the ring of enterprise
Protect benefit.
Those skilled in the art can carry out various modifications and variations to the present invention, if these modifications and variations are at this
Within the scope of invention claim and its equivalent technologies, then these modifications and variations are also within protection scope of the present invention.
The prior art that the content not being described in detail in specification is known to the skilled person.
Claims (5)
1. a kind of gradient utilization system of steam energy, it is characterised in that：Including small steam turbine, admission passage, exhaust line
And generator, the admission passage is connected with the admission end of small steam turbine；The exhaust of the exhaust line and small steam turbine
End is connected；The generator is connected with small steam turbine；The admission passage is connected with large-size steam turbine；The exhaust line bag
The heating branch road and desuperheat branch road of parallel connection are included, the heating branch road is provided with heat primary air heater, the desuperheat branch road
Provided with attemperator.
2. the gradient utilization system of steam energy as claimed in claim 1, it is characterised in that：The small steam turbine is from the back of the body
Pressure type steam turbine.
3. the gradient utilization system of steam energy as claimed in claim 1 or 2, it is characterised in that：The admission passage includes
Two in parallel to enter vapour branch road, and every is entered to be sequentially provided with Pneumatic check valve, the first electric gate valve, the first pneumatic regulation on vapour branch road
Valve, the second electric gate valve, first manual gate valve.
4. the gradient utilization system of steam energy as claimed in claim 3, it is characterised in that：The large-size steam turbine with wherein
One enter vapour branch road or two are entered vapour branch road and are connected.
5. the gradient utilization system of steam energy as claimed in claim 1 or 2, it is characterised in that：The exhaust line plus
The 3rd electric gate valve, the second pneumatic control valve, the 4th electric gate valve are also sequentially provided with hot branch road；Also set on the desuperheat branch road
There is the 5th electric gate valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710568862.8A CN107152316B (en) | 2017-07-13 | 2017-07-13 | Cascade utilization system of steam energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710568862.8A CN107152316B (en) | 2017-07-13 | 2017-07-13 | Cascade utilization system of steam energy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107152316A true CN107152316A (en) | 2017-09-12 |
| CN107152316B CN107152316B (en) | 2023-08-22 |
Family
ID=59797338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710568862.8A Active CN107152316B (en) | 2017-07-13 | 2017-07-13 | Cascade utilization system of steam energy |
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| Country | Link |
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| CN (1) | CN107152316B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223028A (en) * | 2018-02-11 | 2018-06-29 | 华电郑州机械设计研究院有限公司 | A kind of filling formula back pressure turbine heating system |
| CN108960569A (en) * | 2018-06-01 | 2018-12-07 | 华北电力科学研究院有限责任公司 | Thermal power plant extraction for heat supply method, apparatus, equipment and storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010054288A1 (en) * | 2000-05-24 | 2001-12-27 | Ormat Industries Ltd. | Method of and apparatus for producing power description |
| CN101619662A (en) * | 2009-08-14 | 2010-01-06 | 清华大学 | Method for recovering waste heat of thermal power plant and heating and supplying heat to hot water in a stepping way |
| CN202675925U (en) * | 2012-07-19 | 2013-01-16 | 中国电力工程顾问集团华东电力设计院 | Drive turbine steam exhaust cooling system and thermal power generating unit of thermal power plant |
| CN203796339U (en) * | 2013-11-18 | 2014-08-27 | 舒少辛 | Waste heat recovery device of direct air cooling unit |
| CN204113364U (en) * | 2014-05-29 | 2015-01-21 | 西安交通大学 | The waste heat recovering device of lack of water cold area Direct Air-cooled Unit |
| CN204476486U (en) * | 2015-02-28 | 2015-07-15 | 国电龙源节能技术有限公司 | Steam classified utilization device |
| CN104948240A (en) * | 2015-06-01 | 2015-09-30 | 宋子琛 | Exhaust steam waste heat recycling system for small steam turbine of induced draft fan through circulating water based on steam turbine driving |
| CN207004580U (en) * | 2017-07-13 | 2018-02-13 | 中国能源建设集团湖南省电力设计院有限公司 | The gradient utilization system of steam energy |
-
2017
- 2017-07-13 CN CN201710568862.8A patent/CN107152316B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010054288A1 (en) * | 2000-05-24 | 2001-12-27 | Ormat Industries Ltd. | Method of and apparatus for producing power description |
| CN101619662A (en) * | 2009-08-14 | 2010-01-06 | 清华大学 | Method for recovering waste heat of thermal power plant and heating and supplying heat to hot water in a stepping way |
| CN202675925U (en) * | 2012-07-19 | 2013-01-16 | 中国电力工程顾问集团华东电力设计院 | Drive turbine steam exhaust cooling system and thermal power generating unit of thermal power plant |
| CN203796339U (en) * | 2013-11-18 | 2014-08-27 | 舒少辛 | Waste heat recovery device of direct air cooling unit |
| CN204113364U (en) * | 2014-05-29 | 2015-01-21 | 西安交通大学 | The waste heat recovering device of lack of water cold area Direct Air-cooled Unit |
| CN204476486U (en) * | 2015-02-28 | 2015-07-15 | 国电龙源节能技术有限公司 | Steam classified utilization device |
| CN104948240A (en) * | 2015-06-01 | 2015-09-30 | 宋子琛 | Exhaust steam waste heat recycling system for small steam turbine of induced draft fan through circulating water based on steam turbine driving |
| CN207004580U (en) * | 2017-07-13 | 2018-02-13 | 中国能源建设集团湖南省电力设计院有限公司 | The gradient utilization system of steam energy |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223028A (en) * | 2018-02-11 | 2018-06-29 | 华电郑州机械设计研究院有限公司 | A kind of filling formula back pressure turbine heating system |
| CN108960569A (en) * | 2018-06-01 | 2018-12-07 | 华北电力科学研究院有限责任公司 | Thermal power plant extraction for heat supply method, apparatus, equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107152316B (en) | 2023-08-22 |
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