CN107060920A - Method and apparatus for adjusting generating set sliding pressure curve - Google Patents
Method and apparatus for adjusting generating set sliding pressure curve Download PDFInfo
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- CN107060920A CN107060920A CN201710406096.5A CN201710406096A CN107060920A CN 107060920 A CN107060920 A CN 107060920A CN 201710406096 A CN201710406096 A CN 201710406096A CN 107060920 A CN107060920 A CN 107060920A
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- generating set
- main steam
- sliding pressure
- load
- economy parameter
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- 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
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/02—Controlling, e.g. stopping or starting
Abstract
The embodiment of the present invention provides a kind of method and apparatus for adjusting generating set sliding pressure curve, belongs to technical field of power generation.Methods described includes：Determine the economy parameter under different main steam pressures of the generating set under different load；The sliding pressure curvilinear trend of each load is determined according to the economy parameter；And the corresponding most economical main steam pressure force value of each load is determined according to the sliding pressure curvilinear trend, and optimal sliding pressure curve is drawn according to the main steam pressure force value.By above-mentioned technical proposal, it can realize and generating set sliding pressure curve is optimized and revised according to each economy parameter under different main steam pressures of the generating set of measure under different load, and then to the energy-saving generation beneficial effect of generating set.
Description
Technical field
The present invention relates to technical field of power generation, more particularly to a kind of method for being used to adjust generating set sliding pressure curve and
Device.
Background technology
Increasing generating set domestic at present has put into production, but developing rapidly with economic technology, each to generate electricity
Unit is still former design form, and completely without improving and innovating, its sliding pressure curve is obtained by theoretical calculation, by running shape
State influences, and resulting most economical sliding pressure parameter and design have certain deviation, influence the economy of generating set.
The content of the invention
To solve the above-mentioned problems in the prior art, the purpose of the embodiment of the present invention, which is to provide one kind, to be used to adjust hair
The method and apparatus of group of motors sliding pressure curve.
To achieve these goals, the embodiment of the present invention provides a kind of method for adjusting generating set sliding pressure curve,
Methods described includes：Determine the economy parameter under different main steam pressures of the generating set under different load；According to described
Economy parameter determines the sliding pressure curvilinear trend of each load；And each load correspondence is determined according to the sliding pressure curvilinear trend
Most economical main steam pressure force value, and optimal sliding pressure curve is drawn according to the main steam pressure force value.
Alternatively, the economy parameter include it is following at least one：Four pitch apertures of steam turbine, main steam flow,
High pressure cylinder efficiency, IP efficiency, heat consumption rate, station service power consumption rate, gross coal consumption rate and net coal consumption rate.
Alternatively, methods described also includes：Determine the warp under different main steam pressures of the generating set under different load
During Ji property parameter, the main steam and reheat steam temperature for keeping the generating set are rated temperature.
Alternatively, methods described also includes：Determine the warp under different main steam pressures of the generating set under different load
During Ji property parameter, the generating set is kept to be in pure condensate operating mode, and by design therrmodynamic system operation.
Alternatively, methods described also includes：Each main steam pressure under each load is maintained after the first duration, is started
Determine the economy parameter of the generating set.
Alternatively, the economy parameter bag under the different main steam pressures for determining generating set under different load
Include：The value of the economy parameter is determined in the second duration after first duration.
Alternatively, methods described also includes：Determine the warp under different main steam pressures of the generating set under different load
Before Ji property parameter, by the oxygen-eliminating device and condenser water replenishing of the generating set to high water level, and moisturizing door is closed.
Alternatively, the generating set is 1000MW generating sets.
Alternatively, the load for it is following at least one：500MW, 600MW, 700MW, 800MW, 900MW and 950MW.
The embodiment of the present invention also provides a kind of device for being used to adjust generating set sliding pressure curve, and the device is used to perform
The method for adjusting generating set sliding pressure curve stated.
, can be according under different main steam pressures of the generating set of measure under different load by above-mentioned technical proposal
Each economy parameter, realization is optimized and revised to generating set sliding pressure curve, and then to the energy-saving generation of generating set
Beneficial effect.
The further feature and advantage of the embodiment of the present invention will be described in detail in subsequent embodiment part.
Brief description of the drawings
Accompanying drawing is that the embodiment of the present invention is further understood for providing, and constitutes a part for specification, with
The embodiment in face is used to explain the embodiment of the present invention together, but does not constitute the limitation to the embodiment of the present invention.Attached
In figure：
Fig. 1 is a kind of flow for being used to adjust the method for generating set sliding pressure curve that an embodiment of the present invention is provided
Figure；
Fig. 2 is the design sliding pressure curve map of certain 1000MW generating set in the prior art；
Fig. 3 is heat under different main steam pressures of certain generating set of an embodiment of the present invention offer under different load
Consumption rate variation characteristic curve map；And
Fig. 4 is the optimal sliding pressure curve map of certain generating set drawn according to an embodiment of the present invention.
Embodiment
The embodiment of the embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this
The embodiment of place description is merely to illustrate and explain the present invention embodiment, is not intended to limit the invention embodiment.
Fig. 1 is a kind of flow for being used to adjust the method for generating set sliding pressure curve that an embodiment of the present invention is provided
Figure, as shown in figure 1, in an embodiment of the present invention, a kind of method for adjusting generating set sliding pressure curve is disclosed, should
Method includes：
Step S101：Determine the economy parameter under different main steam pressures of the generating set under different load；
Step S102：The sliding pressure curvilinear trend of each load is determined according to economy parameter；And
Step S103：The corresponding most economical main steam pressure force value of each load, and root are determined according to sliding pressure curvilinear trend
Optimal sliding pressure curve is drawn according to main steam pressure force value.
As a preferred embodiment of the invention, generating set corresponding different main steams under different load can be determined
Four pitch apertures of steam turbine, main steam flow, high pressure cylinder efficiency, IP efficiency, heat consumption rate, station service power consumption rate under pressure,
The economy parameter such as gross coal consumption rate and net coal consumption rate.The data collected further according to experiment draw out optimal sliding pressure curve.
Fig. 2 is the design sliding pressure curve map of certain 1000MW generating set in the prior art.In an embodiment of the present invention,
For being combined distribution way of steam using throttling and nozzle and being generated electricity in 950MW~500MW using the 1000MW of sliding pressure operation mode
Unit, may be referred to the main steam pressure force value under different load in the design sliding pressure curve map shown in Fig. 2, by DCS first
The mode of setting sliding pressure biasing, reasonably changes hair in (Distributed Control System, dcs)
Main steam pressure under each load of group of motors is to determine optimal sliding pressure curvilinear trend.It can for example determine as follows optimal
Sliding pressure curvilinear trend：
1) determine when load is 500MW, when main steam pressure is respectively 13.4MPa, 14.4MPa and 15.4MPa, steamer
Four pitch apertures of machine, main steam flow, high pressure cylinder efficiency, IP efficiency, heat consumption rate, station service power consumption rate, gross coal consumption rate and confession
Electric coal consumption.
2) determine when load is 600MW, when main steam pressure is respectively 15.8MPa, 16.8MPa and 17.8MPa, steamer
Four pitch apertures of machine, main steam flow, high pressure cylinder efficiency, IP efficiency, heat consumption rate, station service power consumption rate, gross coal consumption rate and confession
Electric coal consumption.
3) determine when load is 700MW, when main steam pressure is respectively 18.1MPa, 19.1MPa and 20.1MPa, steamer
Four pitch apertures of machine, main steam flow, high pressure cylinder efficiency, IP efficiency, heat consumption rate, station service power consumption rate, gross coal consumption rate and confession
Electric coal consumption.
4) determine when load is 800MW, when main steam pressure is respectively 20.4MPa, 21.4MPa and 22.4MPa, steamer
Four pitch apertures of machine, main steam flow, high pressure cylinder efficiency, IP efficiency, heat consumption rate, station service power consumption rate, gross coal consumption rate and confession
Electric coal consumption.
5) determine when load is 900MW, when main steam pressure is respectively 22.8MPa, 23.8MPa and 24.8MPa, steamer
Four pitch apertures of machine, main steam flow, high pressure cylinder efficiency, IP efficiency, heat consumption rate, station service power consumption rate, gross coal consumption rate and confession
Electric coal consumption.
6) determine when load is 950MW, when main steam pressure is respectively 24.0MPa and 25.0MPa, four tune of steam turbine
Door aperture, main steam flow, high pressure cylinder efficiency, IP efficiency, heat consumption rate, station service power consumption rate, gross coal consumption rate and net coal consumption rate.
By the above method, according to the value of the corresponding economy parameter of different main steam pressures under each load, find out
The optimal sliding pressure curvilinear trend of each load point.Again according to the optimal sliding pressure curvilinear trend, by further determining, find out respectively
The corresponding most economical main steam pressure force value of each load, is finally depicted as optimal sliding pressure curve.
Fig. 3 is heat under different main steam pressures of certain generating set of an embodiment of the present invention offer under different load
Consumption rate variation characteristic curve map.As shown in figure 3, determining the heat consumption of generating set under the different main steam pressures of different load
Rate.Point corresponding to each main steam pressure under different load in Fig. 3 is connected to obtain optimal sliding pressure curvilinear trend, then according to
According to the optimal sliding pressure curvilinear trend, by further determining, each load correspondence determined according to heat consumption rate just can be found out
Most economical main steam pressure force value.By the above method, the corresponding most economical main steam of other economy parameters can also be obtained
Pressure value.It is alternatively possible to most economical main steam pressure force value is determined according to an economy parameter, can also be according to multiple economy
Property parameter in each economy parameter significance level, reasonable distribution weight coefficient, and then obtain according to multiple economy parameters
Most economical main steam pressure force value.
Preferably, main steam and reheat steam temperature could be arranged to rated temperature during economy parameter is determined.
For 1000MW generating sets, the rated temperature may, for example, be 600 DEG C.And generating set may be at pure condensate operating mode, by
The design therrmodynamic system operation of the generating set.Wherein, circulation therrmodynamic system presses isolation inventory check valve closed mode one by one.
By oxygen-eliminating device and condenser water replenishing to higher level before measure starts, moisturizing door is closed, to determine economy parameter mistake
Moisturizing can be no longer carried out in journey, and unit to be determined is kept into separate unit operation.
As the optional embodiment of an embodiment of the present invention, when determining main steam flow, with installed in entering deoxygenation
ASME (American Society of Mechanical Engineers, ASME association on device condensing water conduit
Meeting) flow that measures of normal flow device is main steam flow, and pass through the feedwater flow and superheater desuperheat of monitoring and record
The numerical value of water-carrying capacity, to be checked and be corrected to main steam flow.
As the preferred embodiment of an embodiment of the present invention, each main steam pressure that can be under each load is tieed up
Hold after the first duration, start to determine the economy parameter of the generating set.And second after first duration
The value of the economy parameter is determined in duration.Wherein, first duration may, for example, be 30 minutes, and second duration can example
60 minutes in this way.
Fig. 4 is the optimal sliding pressure curve map of certain generating set drawn according to an embodiment of the present invention.As shown in figure 4, figure
Middle fine rule is the sliding pressure curve obtained by theoretical calculation, and thick line is the optimal sliding pressure drawn by embodiment of the present invention methods described
Curve.The optimal sliding pressure curve can be used for being modified the sliding pressure curve obtained by theoretical calculation, to improve generating set
Economic index.Alternatively, can be according to optimal sliding pressure curve to all or part of economy after optimal sliding pressure curve is obtained
Parameter is measured again, is verified with the economic benefit brought to the optimal sliding pressure curve.
It should be noted that in the present invention, described most economical main steam pressure force value and optimal sliding pressure curve are
Refer to according to technical solutions according to the invention it is concluded that in most economical main steam pressure force value and optimal sliding pressure curve.
One embodiment of the invention also provides a kind of device for being used to adjust generating set sliding pressure curve, and the device can be used for
Perform the above-mentioned method for adjusting generating set sliding pressure curve.
, can be according under different main steam pressures of the generating set of measure under different load by above-mentioned technical proposal
Each economy parameter, realization is optimized and revised to generating set sliding pressure curve, and then to the energy-saving generation of generating set
Beneficial effect.
The optional embodiment of example of the present invention is described in detail above in association with accompanying drawing, still, the embodiment of the present invention is not limited
Detail in above-mentioned embodiment, can be to the embodiment of the present invention in the range of the technology design of the embodiment of the present invention
Technical scheme carry out a variety of simple variants, these simple variants belong to the protection domain of the embodiment of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the embodiment of the present invention pair
Various possible combinations no longer separately illustrate.
It will be appreciated by those skilled in the art that realizing that all or part of step in above-described embodiment method can be by
Program instructs the hardware of correlation to complete, and the program storage is in a storage medium, including some instructions are to cause one
Individual (can be single-chip microcomputer, chip etc.) or processor (processor) perform the whole of each embodiment methods described of the application
Or part steps.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
In addition, can also be combined between a variety of embodiments of the embodiment of the present invention, as long as it is not
The thought of the embodiment of the present invention is run counter to, it should equally be considered as disclosure of that of the embodiment of the present invention.
Claims (10)
1. a kind of method for adjusting generating set sliding pressure curve, it is characterised in that methods described includes：
Determine the economy parameter under different main steam pressures of the generating set under different load；
The sliding pressure curvilinear trend of each load is determined according to the economy parameter；And
The corresponding most economical main steam pressure force value of each load is determined according to the sliding pressure curvilinear trend, and according to the main steaming
Vapour pressure force value draws optimal sliding pressure curve.
2. according to the method described in claim 1, it is characterised in that the economy parameter include it is following at least one：Steamer
Four pitch apertures of machine, main steam flow, high pressure cylinder efficiency, IP efficiency, heat consumption rate, station service power consumption rate, gross coal consumption rate and confession
Electric coal consumption.
3. method according to claim 2, it is characterised in that methods described also includes：Determine generating set negative in difference
During economy parameter under the different main steam pressures under lotus, the main steam and reheat steam temperature for keeping the generating set are
Rated temperature.
4. method according to claim 2, it is characterised in that methods described also includes：Determine generating set negative in difference
During economy parameter under the different main steam pressures under lotus, the generating set is kept to be in pure condensate operating mode, and by design heat
Force system is run.
5. according to the method described in claim 1, it is characterised in that methods described also includes：Each master under each load
Steam pressure is maintained after the first duration, starts to determine the economy parameter of the generating set.
6. method according to claim 5, it is characterised in that difference of the measure generating set under different load is main
Economy parameter under steam pressure includes：The economy parameter is determined in the second duration after first duration
Value.
7. according to the method described in claim 1, it is characterised in that methods described also includes：Determine generating set negative in difference
Before the economy parameter under different main steam pressures under lotus, by the oxygen-eliminating device and condenser water replenishing of the generating set to high water
Position, and close moisturizing door.
8. according to the method described in claim 1, it is characterised in that the generating set is 1000MW generating sets.
9. method according to claim 8, it is characterised in that the load for it is following at least one：500MW、600MW、
700MW, 800MW, 900MW and 950MW.
10. a kind of device for being used to adjust generating set sliding pressure curve, the device is used for perform claim and requires any one in 1-9
The method for adjusting generating set sliding pressure curve described in claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710406096.5A CN107060920A (en) | 2017-06-01 | 2017-06-01 | Method and apparatus for adjusting generating set sliding pressure curve |
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| CN201710406096.5A CN107060920A (en) | 2017-06-01 | 2017-06-01 | Method and apparatus for adjusting generating set sliding pressure curve |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654264A (en) * | 2017-09-20 | 2018-02-02 | 徐州华润电力有限公司 | Sliding pressure curve acquisition method, system and pressure regulating method and system |
| CN112302736A (en) * | 2020-10-31 | 2021-02-02 | 河南九域恩湃电力技术有限公司 | Turbine main steam pressure control method based on monitoring section parameters |
| CN112576326A (en) * | 2020-12-07 | 2021-03-30 | 润电能源科学技术有限公司 | Sliding pressure optimal operation control method, device and equipment for thermal power generating unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2423457A2 (en) * | 2009-03-23 | 2012-02-29 | MAN Diesel & Turbo SE | Power plant for IGSC process |
| RU137999U1 (en) * | 2013-08-16 | 2014-02-27 | Открытое акционерное общество "Всероссийский дважды ордена Трудового Красного Знамени теплотехнический научно-исследовательский институт" | MANEUVERED HEATING TURBO INSTALLATION |
| CN105201564A (en) * | 2015-08-26 | 2015-12-30 | 国网河南省电力公司电力科学研究院 | Main-steam-flow-based steam turbine sliding pressure optimization control method |
-
2017
- 2017-06-01 CN CN201710406096.5A patent/CN107060920A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2423457A2 (en) * | 2009-03-23 | 2012-02-29 | MAN Diesel & Turbo SE | Power plant for IGSC process |
| RU137999U1 (en) * | 2013-08-16 | 2014-02-27 | Открытое акционерное общество "Всероссийский дважды ордена Трудового Красного Знамени теплотехнический научно-исследовательский институт" | MANEUVERED HEATING TURBO INSTALLATION |
| CN105201564A (en) * | 2015-08-26 | 2015-12-30 | 国网河南省电力公司电力科学研究院 | Main-steam-flow-based steam turbine sliding pressure optimization control method |
Non-Patent Citations (1)
| Title |
|---|
| 赵伟光等: "东汽超超临界1000MW汽轮机优化滑压运行方式的试验研究", 《汽轮机技术》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654264A (en) * | 2017-09-20 | 2018-02-02 | 徐州华润电力有限公司 | Sliding pressure curve acquisition method, system and pressure regulating method and system |
| CN107654264B (en) * | 2017-09-20 | 2020-04-17 | 徐州华润电力有限公司 | Sliding pressure curve obtaining method and system and pressure adjusting method and system |
| CN112302736A (en) * | 2020-10-31 | 2021-02-02 | 河南九域恩湃电力技术有限公司 | Turbine main steam pressure control method based on monitoring section parameters |
| CN112576326A (en) * | 2020-12-07 | 2021-03-30 | 润电能源科学技术有限公司 | Sliding pressure optimal operation control method, device and equipment for thermal power generating unit |
| CN112576326B (en) * | 2020-12-07 | 2023-10-13 | 润电能源科学技术有限公司 | Sliding pressure optimal operation control method, device and equipment for thermal power generating unit |
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Application publication date: 20170818 |