AU2018280740A1 - Fuel reduction rate output system, fuel reduction rate output method, and fuel reduction rate output program - Google Patents
Fuel reduction rate output system, fuel reduction rate output method, and fuel reduction rate output program Download PDFInfo
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- AU2018280740A1 AU2018280740A1 AU2018280740A AU2018280740A AU2018280740A1 AU 2018280740 A1 AU2018280740 A1 AU 2018280740A1 AU 2018280740 A AU2018280740 A AU 2018280740A AU 2018280740 A AU2018280740 A AU 2018280740A AU 2018280740 A1 AU2018280740 A1 AU 2018280740A1
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- fuel reduction
- reduction rate
- main steam
- steam pressure
- history
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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
- F22B35/00—Control systems for steam boilers
- F22B35/18—Applications of computers to steam boiler control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
Abstract
A fuel reduction rate output system that calculates a fuel reduction rate affecting a fuel reduction measure, which is applied to a boiler combustion control system, wherein the fuel reduction rate output system has: a deviation determination unit that records the history of measured main steam pressures as a main steam pressure history, that calculates the deviation between the main steam pressure history and the measured main steam pressures, and that outputs the history of the main steam pressure for which the deviation is within a prescribed range as a history of control main steam pressure; a standard deviation calculation unit that calculates a standard deviation on the basis of the history of control main steam pressure output by the deviation determination unit; and a fuel reduction rate output unit that calculates a standard deviation improvement rate on the basis of the standard deviation calculated by the standard deviation calculation unit and that calculates and outputs the fuel reduction rate on the basis of a reference equation indicating the relationship between the standard deviation improvement rate and the fuel reduction rate.
Description
TITLE OF THE INVENTION
FUEL REDUCTION RATE OUTPUT SYSTEM, FUEL REDUCTION RATE OUTPUT METHOD AND FUEL REDUCTION RATE OUTPUT PROGRAM
TECHNICAL FIELD [0001]
The present invention relates to a technique to control combustion of a boiler, and more specif ically, the present invention relates to a technique that is effective for applying a fuel reduction rate output system, a fuel reduction rate output method, and a fuel reduction rate output program for calculating a fuel reduction rate obtained by improvement of efficiency of a boiler.
BACKGROUND ART [0002]
For example, in a case where a boiler facility is used to acquire energy, fuel (solid fuel such as coal, liquid fuel, or gas fuel) is supplied to a boiler (or a furnace) to burn, and its heat is absorbed by a heat exchanger to cause steam to be generated, thereby obtaining thermal energy. The generated steam is supplied to a steam turbine to be converted from the thermal energy into rotary motion, thereby being used for power generation by an electric generator, for example. A fuel charging amount to the boiler is determined by a fuel function FX. The fuel function FX is a relational expression between a load demand (for example, power generation demand MWD (Mega Watt Demand); hereinafter, referred to also as a load demand MWD) and the fuel charging amount to the boiler (hereinafter, referred to also as a boiler input command value BID (Boiler Input Demand)).
[0003]
-2Here, variation in an operation state of the boiler, in particular, variation in a main steam pressure may occur due to an influence by factors related to a boiler facility, for example, a fuel property by fuel switching or the like or a change in heat quantity, furnace grime, soot blower, air and water temperature, or the like. Therefore, a control in which fuel related to a fuel charging amount found by the fuel function FX is supplied to the boiler, the generated main steam pressure is measured, a feedback correction amount is found by a PID (Proportional-Integral-Differential) control on the basis of a difference between this and a main steam pressure set in advance, and the fuel charging amount to the boiler is corrected by adding this to a load demand has been executed generally.
[0004]
As a technique related to this, for example, Japanese Patent No. 4,522,326 (Patent document 1) describes that a plurality of ratios or differences between values before and after feedback correction is executed are recorded while updating them in turn, a fuel correction factor is found from the plurality of recorded values, and a value after the feedback correction is corrected by this fuel correction factor. This makes it possible to correct a fuel charging amount into proper one in view of a change in thermal efficiency of a boiler due to an influence of factors.
[0005]
Moreover, for example, Japanese Patent No. 4791269 (Patent Document 2) describes that, in a mixed combustion boiler for plural kinds of fuels, by subdividing a fuel correction factor for correcting a value after feedback correction into three elements, a fuel charging amount to the boiler is corrected so as to address a difference of unit heat quantity of fuel and a difference of boiler thermal efficiency with a change in a mixed fuel combustion ratio. RELATED ART DOCUMENTS
-3PATENT DOCUMENTS [0006]
Patent Document 1: Japanese Patent No. 4522326
Patent Document 2: Japanese Patent No. 4791269
SUMMARY OF THE INVENTION
PROBLEMS TO BE SOLVED BY THE INVENTION [0007]
For example, according to the conventional technology of Patent document 1 or 2, by always comparing and measuring values of a load demand MWD before and after feedback correction (or other control values) with respect to a change in thermal efficiency of the boiler due to an influence of the factors, this can be determined, and a value of a correction factor for further correcting and optimizing the value after the feedback correction on the basis of a determination result can be acquired by self-learning.
[0008]
It is possible to improve efficiency of the boiler by optimizing a control using these correction factors. However, in order to grasp a degree of improvement of the efficiency of the boiler conventionally, it has been required to carry out a performance test to measure it actually. Specifically, for example, activation and non-activation of a control function related to energy saving is switched, each of a fuel consumption amount and a generation amount of steam is compared between an activation period and a non-activation period, and a fuel reduction rate is calculated. However, an approach requiring such a performance test is roundabout and the fuel reduction rate cannot be estimated in real time during an operation.
[0009]
It is thus an object of the present invention to provide a fuel reduction rate output system, a fuel reduction rate output
-4method, and a fuel reduction rate output program capable of outputting a fuel reduction rate obtained by improvement in control performance of a boiler, that is, an energy-saving ratio in real time .
[0010]
The foregoing and other objects, and new features of the present invention will become more apparent from description of the present specification and the appending drawings.
MEANS FOR SOLVING THE PROBLEM [0011]
An outline of representative invention of the present invention disclosed in the present application and the like will briefly be explained as follows.
[0012]
A fuel reduction rate output system according to a representative embodiment of the present invention is a fuel reduction rate output system configured to calculate a fuel reduction rate related to fuel reduction contributing measures, the fuel reduction contributing measures being applied to a boiler combustion control system, the boiler combustion control system supplying fuel related to a fuel charging amount for a boiler calculated with respect to a load demand to the boiler. The fuel reduction rate output system includes: a deviation determining unit configured to record a history of a measured main steam pressure as a main steam pressure history, calculate a deviation between the main steam pressure history and the measured main steam pressure, and output a history of a main steam pressure when the deviation is within a predetermined range as a history of a controlled main steam pressure, the measured main steam pressure being the main steam pressure thus measured of the boiler; a standard deviation calculating unit configured to calculate a standard deviation on a basis of the history of the controlled main steam pressure
-5outputted by the deviation determining unit; and a fuel reduction rate output unit configured to calculate an improvement rate of the standard deviation on a basis of the standard deviation calculated by the standard deviation calculating unit, calculate and output a fuel reduction rate on a basis of a criteria expression, the criteria expression indicating a relationship between the improvement rate of the standard deviation and the fuel reduction rate .
[0013]
Further, in addition to the fuel reduction rate output system as described above, the present invention can also be applied to a fuel reduction rate output method and a fuel reduction rate output program for causing a computer to operate as the fuel reduction rate output system as described above.
EFFECTS OF THE INVENTION [0014]
Effects obtained by representative invention of the present invention disclosed in the present application will briefly be explained as follows.
[0015]
Namely, according to the representative embodiment of the present invention, it becomes possible to output a fuel reduction rate obtained by improvement of controllability of a boiler, that is, an energy-saving ratio in real time.
BRIEF DESCRIPTIONS OF THE DRAWINGS [0016]
FIG. 1 is a view illustrating an outline of a configuration example of a fuel reduction rate output system according to one embodiment of the present invention.
FIG. 2 is a view illustrating an example of a relationship between an improvement rate of a standard deviation of a main steam
-6pressure and a fuel reduction rate according to one embodiment of the present invention.
DETAILED DESCRIPTION OF EMBODIMENT [0017]
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Note that in all of the drawings for explaining the embodiment, the same reference numeral is generally assigned to the same unit, and its repeated explanation will be omitted. On the other hand, a component has been explained in a certain drawing while applying a reference numeral thereto is not illustrated again when another drawing is to be explained, but the element may be referred to by applying the same reference numeral thereto.
[0018] <System Configuration>
FIG. 1 is a view illustrating an outline of a configuration example of a fuel reduction rate output system according to one embodiment of the present invention. In FIG. 1, a control for a boiler 2 is executed by an existing boiler combustion control system 4. The boiler combustion control system 4 uses a load demand MWD as an input, and determines a boiler input command value BID, which is a fuel charging amount for the boiler, by a fuel function (not illustrated in the drawings). In a case where such measures that fuel reduction is expected (hereinafter, correctively referred to also as fuel reduct ion contributing measures) is made, for example in a case where this boiler combustion control system 4 is newly updated or additionally installed or in a case where measures to improve controllability as indicated in Patent Documents 1 and 2 is made, as will be described later, a fuel reduction rate output system 1 calculates and outputs a fuel reduction rate 15 in real time on the basis of a standard deviation of a main steam pressure
Ιοί. the boiler 2.
[0019]
Note that in the example of FIG. 1, the fuel reduction rate output system 1 is configured to be added to the boiler combustion control system 4 as a separate system. However, it may be configured to be integrated as a part of the boiler combustion control system 4. Further, in the example of FIG. 1, the fuel reduction rate output system 1 is configured to output the calculated fuel reduction rate 15 as data. However, it may be configured so as to include a display unit configured to output the fuel reduction rate 15 by being displayed on a display (not illustrated in the drawings) or being printed by a printer in a predetermined format or layout. By including such a display unit, it is possible to grasp the fuel reduction rate 15 (or a fuel reduction amount) instantaneously. [0020]
The fuel reduction rate output system 1 may be configured, for example, as an apparatus implemented by hardware that consists of a semiconductor circuit, a microcomputer, or the like (not illustrated in the drawings), which executes processes related to respective functions (will be described later) . Alternatively, the fuel reduction rate output system 1 may be configured by general-purpose server equipment or a virtual server built on cloud computing service, and may execute processes related to the respective functions (will be described later) by executing middleware such as an OS (Operating System), which is developed onto a memory from a recording device such as a HDD (Hard Disk Drive) by a CPU (Central Processing Unit) (not illustrated in the drawings) , or software that operates thereon.
[0021]
Further, the fuel reduction rate output system 1 may be configured by appropriately combining implementation by the hardware and implementation by the software. Further, it is not
-8limited to a configuration in which the whole is implemented in one housing. It may be configured so that a part of the functions is implemented in another housing and these housings are mutually connected to each other by a communication cable or the like . Namely the embodiment of the fuel reduction rate output system 1 is not limited particularly, and can be appropriately configured flexibly in accordance with an environment or the like of the plant.
[0022]
As illustrated in FIG. 1, the fuel reduction rate output system 1 includes, for example, respective units such as a deviation determining unit 11, a standard deviation calculating unit 12, and a fuel reduction rate output unit 13, each of which is implemented by hardware or software. Further, the fuel reduction rate output system 1 has data such as a main steam pressure history 14 and the like, each of which is implemented as a file, a table, or a database recorded in the memory or the HDD.
[0023]
Calculation of Fuel Reduction Rate>
As described above, in the fuel reduction rate output system 1 according to the present embodiment, it is assumed that any fuel reduction contributing measures are made to the boiler combustion control system 4 (or by another system that is to be added to the boiler combustion control system 4, or the like) . In a case where energy saving is carried out by such fuel reduction contributing measures, in particular, in a case where improvement of controllability by the conventional technologies as described in Patent Documents 1 and 2 is carried out, a variation in the main steam pressure generated by the boiler 2 is made smaller. Thus, a variation in a combustion state in a furnace of the boiler 2 or a state of the whole unit including a steam turbine 3 for power generation is made smaller, and as a result, a fuel consumption amount is reduced.
-9[0024]
In such a boiler combustion control system 4, it can be thought that a magnitude of the variation in the state of the whole unit, that is, a magnitude of the variation in the main steam pressure is associated with the fuel reduction rate. Therefore, in the fuel reduction rate output system 1 according to the present embodiment, an estimated value of the fuel reduction rate is calculated by the following method.
[0025]
As illustrated in FIG. 1, a current measured main steam pressure PV is inputted to the deviation determining unit 11 of the fuel reduction rate output system 1 from a main steam pressure transmitter PX. The deviation determining unit 11 compares, for example, in a fixed interval such as once per minute, the measured main steam pressure PV with a history of the main steam pressure within a past fixed time (for example, within the past 60 minutes) , which is recorded in the main steam pressure history 14. Note that at least measurement values of the main steam pressure over the past of the fixed time described above (for example, for 60 minutes) or longer is recorded in the main steam pressure history 14 at a frequency of the fixed interval described above (for example, one-minute interval) or higher.
[0026]
The deviation determining unit 11 extracts a history of the main steam pressure, which is in a range of about ±5% of a current the measured main steam pressure PV, for example, from the main steam pressure history 14, and counts the number of data. In a case where this number is equal to or more than a predetermined number (for example, a half or more of all of the history data that are extracted as a population (in other words, a half period of the fixed period described above or longer)), it is determined that the main steam pressure is controlled in a stabilized state at almost the same value
- 10as the current measured main steam pressure PV, and outputs information on the history of the extracted main steam pressure (hereinafter, referred to also as a controlled main steam pressure) to the standard deviation calculating unit 12.
[0027]
The standard deviation calculating unit 12 calculates the standard deviation on the basis of the inputted history of the controlled main steam pressure, and outputs it to the fuel reduction rate output unit 13. This standard deviation is calculated by the following expression as an improvement rate of the standard deviation (%), for example:
(improvement rate of standard deviation) = 100 - ( (controlled standard deviation) / (standard deviation before measures) x 100) ) . Here, the controlled standard deviation is a standard deviation of the inputted history of the controlled main steam pressure, and the standard deviation before measures is a standard deviation of a history of the main steam pressure in a state before the fuel reduction contributing measures are made. Note that the standard deviation before measures that become the basis of calculation of the improvement rate (that is, the controlled main steam pressure in the state before target fuel reduction contributing measures are made) is obtained and recorded in advance before the target fuel reduction contributing measures are made, for example. Alternatively, it may be set as a predetermined variable function, and its coefficient may be allowed to be changed appropriately. [0028]
The fuel reduction rate output unit 13 calculates and outputs the estimated value of the fuel reduction rate on the basis of a predetermined mathematical expression from the inputted improvement rate of the standard deviation described above. [0029]
FIG. 2 is a view illustrating an example of a relationship
- 11 between the improvement rate of the standard deviation of the main steam pressure and the fuel reduction rate according to the present embodiment. A graph of FIG. 2 uses the improvement rate of the standard deviation (%) of the main steam pressure as a horizontal axis (x-axis) and the fuel reduction rate (%) as a vertical axis (y-axis), and indicates a plot of actual results when various kinds of fuel reduction contributing measures were respectively made for the boilers 2 installed to various kinds of plants are plotted. As illustrated in FIG. 2, it can be seen that there is a correlation that the greater the improvement rate of the standard deviation of the main steam pressure is, the greater the fuel reduction rate becomes. Then, this correlation can be formulated for each of the boilers 2 by linear approximation as illustrated in FIG. 2 (in the example of FIG. 2, y = 0.0378x + 0.1604 indicated in FIG. 2) . In the present embodiment, by applying the inputted improvement rate of the standard deviation to this criteria expression subjected to the linear approximation, the fuel reduction rate output unit 13 calculates the estimated value of the fuel reduction rate.
[0030]
Note that, in the present embodiment, as illustrated in FIG.
1, it is configured so as to have one fuel reduction rate output unit 13. However, it may be configured so that a plurality of fuel reduction rate output units 13 is respectively provided and used in accordance with degrees (load bands) of the measured main steam pressure PV and. Alternatively, it may be configured so that a plurality of criteria expressions each indicating a relationship between the improvement rate of the standard deviation described above and the fuel reduction rate is respectively provided and used in accordance with the load bands by one fuel reduction rate output unit 13. Further, the criteria expression described above may be set as a predetermined variable function, and its coefficient may be allowed to be changed appropriately. Further, in the present
- 12embodiment, the estimated value of the fuel reduction rate (%) is calculated and outputted. However, by multiplying this by the boiler input command value BID (the fuel charging amount to the boiler 2) , the multiplied one may be outputted as the fuel reduction amount.
[0031]
As described above, the invention made by inventors of the present application has been described specifically on the basis of the embodiment. However, the present invention is not limited to the embodiment described above, and it goes without saying that the present invention may be modified into various forms without departing from the substance thereof. For example, the embodiment described above has been explained in detail for explaining the present invention clearly. The present invention is not necessarily limited to one that includes all configurations that have been explained. Further, a part of the configuration of the embodiment can be added with the other configuration, deleted or replaced thereby.
[0032]
Further, a part or all of the respective configuration described above, the functions, processing units, and processing means may be realized by hardware that is designed by an integrated circuit, for example. Further, the respective configuration described above and the functions may be realized by software so that a processor interprets programs realizing the respective functions and execute the interpreted programs. Information on programs, tables, and files, which realize the respective functions can be placed in a recording device such as a memory, a hard disk, or an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, or a DVD.
[0033]
Further, in each of the drawings described above, control
- 13lines and information lines are illustrated so long as they are thought to be necessary for explanation. All of the control lines and the information lines are not necessarily illustrated on the implementation. In fact, it may be considered that almost all of the components are connected to each other.
INDUSTRIAL APPLICABILITY [0034]
The present invention is usable for a fuel reduction rate output system, a fuel reduction rate output method, and a fuel reduction rate output program each of which calculates a fuel reduction rate obtained by improvement of efficiency of a boiler. REFERENCE SINGS LIST [0035]
... fuel reduction rate output system, 2 ... boiler, 3 ... steam turbine,
... boiler combustion control system, 11 ... deviation determining unit, 12 ... standard deviation calculating unit, 13 ... the fuel reduction rate output unit, 14 ... main steam pressure history, 15 ... fuel reduction rate, PV ... measured main steam pressure, PX ... main steam pressure transmitter, MWD ... load demand, BID ... boiler input command value
Claims (6)
1. A fuel reduction rate output system configured to calculate a fuel reduction rate related to fuel reduction contributing measures, the fuel reduction contributing measures being applied to a boiler combustion control system, the boiler combustion control system supplying fuel related to a fuel charging amount for a boiler calculated with respect to a load demand to the boiler, the fuel reduction rate output system comprising:
a deviation determining unit configured to record a history of a measured main steam pressure as a main steam pressure history, calculate a deviation between the main steam pressure history and the measured main steam pressure, and output a history of a main steam pressure when the deviation is within a predetermined range as a history of a controlled main steam pressure, the measured main steam pressure being the main steam pressure thus measured of the boiler;
a standard deviation calculating unit configured to calculate a standard deviation on a basis of the history of the controlled main steam pressure outputted by the deviation determining unit; and a fuel reduction rate output unit configured to calculate an improvement rate of the standard deviation on a basis of the standard deviation calculated by the standard deviation calculating unit, calculate and output a fuel reduction rate on a basis of a criteria expression, the criteria expression indicating a relationship between the improvement rate of the standard deviation and the fuel reduction rate.
2. The fuel reduction rate output system according to claim 1, wherein the criteria expression is set for each load bands on the boiler.
3. The fuel reduction rate output system according to claim 1 or 2, wherein the criteria expression is set as a predetermined variable function.
4. The fuel reduction rate output system according to any one of claims 1 to 3, further comprising:
a display unit configured to display the fuel reduction rate outputted by the fuel reduction rate output unit.
5. A fuel reduction rate output method in a fuel reduction rate output system configured to calculate a fuel reduction rate related to fuel reduction contributing measures, the fuel reduction contributing measures being applied to a boiler combustion control system, the boiler combustion control system supplying fuel related to a fuel charging amount for a boiler calculated with respect to a load demand to the boiler, the fuel reduction rate output method comprising:
a history recording step of recording a history of a measured main steam pressure as a main steam pressure history, the measured main steam pressure being the main steam pressure thus measured of the boiler;
a deviation determining step of calculating a deviation between the main steam pressure history and the measured main steam pressure, and outputting a history of a main steam pressure when the deviation is within a predetermined range as a history of a controlled main steam pressure;
a standard deviation calculating step of calculating a standard deviation on a basis of the history of the controlled main steam pressure outputted by the deviation determining step; and a fuel reduction rate outputting step of calculating an
- 16improvement rate of the standard deviation on a basis of the standard deviation calculated by the standard deviation calculating step, calculating and outputting a fuel reduction rate on a basis of a criteria expression, the criteria expression indicating a relationship between the improvement rate of the standard deviation and the fuel reduction rate.
6. A fuel reduction rate output program for causing a computer to serve as a fuel reduction rate output system configured to calculate a fuel reduction rate related to fuel reduction contributing measures, the fuel reduction contributing measures being applied to a boiler combustion control system, the boiler combustion control system supplying fuel related to a fuel charging amount for a boiler calculated with respect to a load demand to the boiler, the fuel reduction rate output program causing the computer to execute:
a history recording process to record a history of a measured main steam pressure as a main steam pressure history, the measured main steam pressure being the main steam pressure thus measured of the boiler;
a deviation determining process to calculate a deviation between the main steam pressure history and the measured main steam pressure, and output a history of a main steam pressure when the deviation is within a predetermined range as a history of a controlled main steam pressure;
a standard deviation calculating process to calculate a standard deviation on a basis of the history of the controlled main steam pressure outputted by the deviation determining process; and a fuel reduction rate outputting process to calculate an improvement rate of the standard deviation on a basis of the standard deviation calculated by the standard deviation calculating process, calculate and output a fuel reduction rate on a basis of a criteria
-17expression, the criteria expression indicating a relationship between the improvement rate of the standard deviation and the fuel reduction rate.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017114679A JP6715800B2 (en) | 2017-06-09 | 2017-06-09 | Fuel reduction rate output system, fuel reduction rate output method, and fuel reduction rate output program |
| JP2017-114679 | 2017-06-09 | ||
| PCT/JP2018/019302 WO2018225481A1 (en) | 2017-06-09 | 2018-05-18 | Fuel reduction rate output system, fuel reduction rate output method, and fuel reduction rate output program |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2018280740A1 true AU2018280740A1 (en) | 2020-01-16 |
| AU2018280740B2 AU2018280740B2 (en) | 2023-05-25 |
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| AU2018280740A Active AU2018280740B2 (en) | 2017-06-09 | 2018-05-18 | Fuel reduction rate output system, fuel reduction rate output method, and fuel reduction rate output program |
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| Country | Link |
|---|---|
| JP (1) | JP6715800B2 (en) |
| KR (1) | KR102469420B1 (en) |
| CN (1) | CN110832251B (en) |
| AU (1) | AU2018280740B2 (en) |
| TW (1) | TWI682126B (en) |
| WO (1) | WO2018225481A1 (en) |
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| CN110925741B (en) * | 2019-12-13 | 2021-03-26 | 吉林大学 | Method for acquiring inlet and outlet temperatures of main steam superheaters based on desuperheating water quantity |
| WO2022054193A1 (en) * | 2020-09-10 | 2022-03-17 | 郵船商事株式会社 | Boiler combustion control system and boiler combustion control method |
| CN113915601A (en) * | 2021-09-09 | 2022-01-11 | 中国五环工程有限公司 | Automatic control system and control method for air-fuel ratio of oil-gas boiler |
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|---|---|---|---|---|
| TW257829B (en) * | 1993-12-22 | 1995-09-21 | Combustion Eng | Steam generation apparatus having a furnace including a boiler |
| JPH08327036A (en) * | 1995-05-29 | 1996-12-10 | Meidensha Corp | Steam pressure controller for boiler |
| JP3062582B2 (en) * | 1995-11-07 | 2000-07-10 | 株式会社日立製作所 | Method and apparatus for predicting furnace state of pulverized coal combustion equipment |
| JP2000161603A (en) | 1998-11-20 | 2000-06-16 | Kawasaki Steel Corp | Optimum distributing method of fuel for plurality of boilers |
| JP4522326B2 (en) | 2004-12-22 | 2010-08-11 | 新日本製鐵株式会社 | Determination of boiler fuel input |
| JP4974330B2 (en) * | 2006-02-28 | 2012-07-11 | 株式会社日立製作所 | Control device |
| JP4791269B2 (en) | 2006-06-27 | 2011-10-12 | 新日本製鐵株式会社 | Determination method of boiler fuel input amount, boiler fuel control device and program |
| JP5197299B2 (en) * | 2008-10-20 | 2013-05-15 | 中国電力株式会社 | Coal calorie control system in boiler equipment. |
| JP5804888B2 (en) * | 2011-10-19 | 2015-11-04 | 三菱日立パワーシステムズ株式会社 | Control method for gas turbine power plant, gas turbine power plant, control method for carbon-containing fuel gasifier, and carbon-containing fuel gasifier |
| JP5772629B2 (en) | 2012-01-27 | 2015-09-02 | 新日鐵住金株式会社 | Steam pressure control method |
| JP5772644B2 (en) * | 2012-02-10 | 2015-09-02 | 新日鐵住金株式会社 | Steam pressure control method |
| JP6110706B2 (en) * | 2013-03-29 | 2017-04-05 | 千代田化工建設株式会社 | Steam treatment equipment |
| CN103486607B (en) * | 2013-09-30 | 2015-07-15 | 攀钢集团攀枝花钢钒有限公司 | Automatic fuel adjustment system and method of multi-fuel fired boiler |
| JP6204204B2 (en) * | 2014-01-20 | 2017-09-27 | 中国電力株式会社 | Boiler fuel input amount determination device |
| CN104132367A (en) * | 2014-07-30 | 2014-11-05 | 国家电网公司 | Method for controlling amount of coal conveyed into furnace of thermal generator set on basis of virtual fuel quantity |
| CN104807003B (en) * | 2015-04-22 | 2017-06-20 | 大唐武安发电有限公司 | The system and method for the Circulating Fluidized Bed Temperature control based on fuel self-balancing |
| CN104932566B (en) * | 2015-06-05 | 2017-09-29 | 国网山东省电力公司电力科学研究院 | A kind of control system and method for improving the quick adjustment capability of elementary generator group boiler |
-
2017
- 2017-06-09 JP JP2017114679A patent/JP6715800B2/en active Active
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2018
- 2018-05-18 CN CN201880037976.2A patent/CN110832251B/en active Active
- 2018-05-18 KR KR1020197036400A patent/KR102469420B1/en active IP Right Grant
- 2018-05-18 AU AU2018280740A patent/AU2018280740B2/en active Active
- 2018-05-18 WO PCT/JP2018/019302 patent/WO2018225481A1/en active Application Filing
- 2018-06-07 TW TW107119678A patent/TWI682126B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| TWI682126B (en) | 2020-01-11 |
| AU2018280740B2 (en) | 2023-05-25 |
| JP6715800B2 (en) | 2020-07-01 |
| CN110832251B (en) | 2021-08-31 |
| WO2018225481A1 (en) | 2018-12-13 |
| JP2019002574A (en) | 2019-01-10 |
| KR102469420B1 (en) | 2022-11-22 |
| KR20200030504A (en) | 2020-03-20 |
| TW201903548A (en) | 2019-01-16 |
| CN110832251A (en) | 2020-02-21 |
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