CN110094724A - A kind of burning in circulating fluid bed boiler control method and device - Google Patents
A kind of burning in circulating fluid bed boiler control method and device Download PDFInfo
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- CN110094724A CN110094724A CN201910447221.6A CN201910447221A CN110094724A CN 110094724 A CN110094724 A CN 110094724A CN 201910447221 A CN201910447221 A CN 201910447221A CN 110094724 A CN110094724 A CN 110094724A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/28—Control devices specially adapted for fluidised bed, combustion apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2206/00—Fluidised bed combustion
- F23C2206/10—Circulating fluidised bed
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention discloses a kind of burning in circulating fluid bed boiler control method and device, the described method includes: putting into/cut off button by AGC when AGC is put into selects AGC instruction or CCS load instruction, the setting value of the sum of load instruction and primary frequency modulation load instruction as power governor；Target main vapour pressure or pressure set points pass through setting value of the rate limit as steam turbine pressure regulator and boiler master；If boiler master investment is automatic, turbine main control investment is automatic, enter CCS mode；If boiler master investment is automatic, turbine main control is not put into automatically, enter BF mode, turbine main control investment is automatic, then enters TF mode, and turbine main control is not put into automatically, then enters machine furnace manual mode；Boiler master exports fuel command, the setting value of the sum of fuel command and the biasing of coal amount as fuel master control.The present invention has the advantages that automatic adjustment main vapour pressure, avoids artificial frequently intervention, reduces labor intensity.
Description
Technical field
The present invention relates to the AGC control fields of recirculating fluidized bed, are more particularly to a kind of burning in circulating fluid bed boiler control
Method and device processed.
Background technique
Currently, national development faces energy shortage and coal-fired bring pollution, make traditional chain furnace and combustion powder furnace technology
Greatly challenged.New Cycle fluidized bed combustion can be good at solving that sulfur-bearing is high, ash content is big, impurity is more, low-heat
The coal of value and the problem of in terms of exhaust pollution, Technology of Circulating Fluidized Bed Boiler is used widely, technology also increasingly at
It is ripe.But for the optimization of burning in circulating fluid bed boiler control strategy, absolutely the scheme of maturation, control strategy need not yet
It is continued to optimize according to practical debugging situation, is perfect, therefore being easy to influence the safe operation of unit.
Under existing circulating fluidized-bed boiler Combustion technology control strategy auto state, plus-minus coal amount fluctuation is big and too late
When, main vapour pressure can not be stablized after lifting load or even divergent trend is presented in main vapour pressure.When operations staff interferes manually,
Though main steam pressure fluctuation range is smaller, relies primarily on operations staff and manually adjust, large labor intensity, so designing one kind
Can adjust automatically working method, control device and the control strategy for automatically adjusting main vapour pressure be very necessary.
Summary of the invention
Technical problem to be solved by the present invention lies in prior art burning in circulating fluid bed boiler to rely on operations staff's hand
The problem of dynamic adjusting main vapour pressure, large labor intensity.
The present invention is to solve above-mentioned technical problem by the following technical programs: a kind of burning in circulating fluid bed boiler control
Method, which comprises
Step 1: button is put into/cut off by AGC when AGC is put into and select AGC instruction or CCS load instruction；
Step 2: AGC instruction or CCS load instruction limit restriction through overload up/down and limit range in load up/down
It is interior；
Step 3: rate is limited in preset speed range by AGC instruction or CCS load instruction by rate limit；
Step 4: AGC instruction or CCS load instruction carry out about load through the limitation of overload up/down and rate limit
Load instruction is formed after beam；
Step 5: the setting value by the sum of load instruction and primary frequency modulation load instruction as power governor；
Step 6: load instruction is converted to sliding pressure definite value, the conduct of the sum of sliding pressure definite value and pressure-biased by sliding pressure curve
Target main vapour pressure；
Step 7: by cunning/level pressure select button selection target main vapour pressure when sliding pressure is put into, level pressure passes through when putting into
Cunning/level pressure select button selects pressure set points；
Step 8: target main vapour pressure or pressure set points pass through rate limit as steam turbine pressure regulator and boiler
The setting value of master control；
Step 9: if boiler master investment is automatic, turbine main control investment is automatic, enter CCS mode, steam turbine passes through at this time
Power governor regulation power, boiler adjust main vapour pressure by boiler master；If boiler master puts into automatic, turbine main control not
Investment is automatic, then enters BF mode, adjust main vapour pressure by boiler master at this time；If boiler master is not put into automatically, steam turbine
Master control investment is automatic, then enters TF mode, adjusts main vapour pressure by steam turbine pressure regulator at this time；If boiler master is not put into
Automatically, turbine main control is not put into automatically, then enters machine furnace manual mode；
Step 10: boiler master exports fuel command, the setting of the sum of fuel command and the biasing of coal amount as fuel master control
Value；
Step 11: the sum of the setting value of fuel master control and Coal feeder bias are used as feeder frequency conversion instruction, pass through adjusting
Feeder frequency conversion instruction adjusts coal-supplying amount.
Preferably, the step 1 further include: AGC put into when by AGC put into/cut off button select AGC instruct or
CCS load instruction, AGC instruction or CCS load instruction be superimposed with primary frequency modulation load instruction after through overload up/down limit limit pair
Load is constrained, and target load is formed, and decides whether that putting into AGC refers to by monitoring objective load and actual power deviation
It enables.
Preferably, it when monitoring objective load and actual power deviation are more than the first preset value, is pressed by AGC investment/excision
Button cuts off AGC instruction.It is full-automatic that control method through the invention can be realized burning in circulating fluid bed boiler control process, only
Need the deviation of artificial monitoring objective load and actual load, ability manual intervention when failure reduces the amount of labour.
Preferably, the step 3 further include: the pitch aperture of DEH adjusting turbine main control is adjusted by digital electricity.
Preferably, the step 4 further include: the feeder has several, and it is inclined that each feeder is equipped with feeder
It sets, giving for feeder is adjusted by the coal-supplying amount for adjusting Coal feeder bias adjusting feeder or the setting value for adjusting fuel master control
Coal amount.
The present invention also provides a kind of burning in circulating fluid bed boiler control devices, including AGC selecting module, the first load
Up/down limits module, first rate limitation module, load instruction generation module, the first laminating module, the second laminating module, cunning/fixed
Press selecting module, the second rate limit blocks, mode selection module, third laminating module and the 4th laminating module；
The AGC selecting module puts into/cuts off button by AGC when for AGC investment and selects AGC instruction or CCS negative
Lotus instruction；
The first load up/down limits module, for AGC instruction or CCS load instruction to be constrained in load up/down limit
In range；
The first rate limits module, and for limiting the rate of AGC instruction or CCS load instruction, rate is limited
In preset speed range；
The load instruction generation module limits module by the first load up/down for AGC instruction or CCS load instruction
And first rate limitation module constrains load, forms load instruction；
First laminating module, for by the sum of load instruction and primary frequency modulation load instruction as power governor
Setting value；
Second laminating module, for load instruction to be converted to sliding pressure definite value by sliding pressure curve, sliding pressure definite value with
The sum of pressure-biased is used as target main vapour pressure；
The cunning/level pressure selecting module, for passing through the main vapour pressure of cunning/level pressure select button selection target when sliding pressure investment
Power selects pressure set points by cunning/level pressure select button when level pressure is put into；
Second rate limit blocks, for target main vapour pressure or pressure set points to be passed through rate limit as vapour
The setting value of machine pressure regulator and boiler master；
The mode selection module, for selecting CCS mould when boiler master investment is automatic, turbine main control investment is automatic
Formula, steam turbine adjusts main vapour pressure by boiler master by power governor regulation power, boiler at this time；It is put into boiler master
Automatically, when turbine main control does not put into automatic, BF mode is selected, main vapour pressure is adjusted by boiler master at this time；In boiler master
It does not put into automatically, when turbine main control investment is automatic, selects TF mode, main vapour pressure is adjusted by steam turbine pressure regulator at this time；
It is not put into automatically in boiler master, when turbine main control does not put into automatic, selects machine furnace manual mode；
The third laminating module, the fuel command for exporting boiler master are superimposed with the biasing of coal amount as fuel master
The setting value of control；
4th laminating module is used as feeder frequency conversion for the setting value of fuel master control to be superimposed with Coal feeder bias
Instruction adjusts coal-supplying amount by adjusting feeder frequency conversion instruction.
Preferably, burning in circulating fluid bed boiler control device further includes target load generation module, the second load up/down
Module and the 5th laminating module are limited, the AGC selecting module puts into/cuts off button by AGC when AGC is put into and selects AGC
Instruction or CCS load instruction, AGC instruction or CCS load instruction are superimposed with primary frequency modulation load instruction through the 5th laminating module
Load is constrained by the second load up/down limit module afterwards, target load is formed, passes through monitoring objective load and practical function
Rate deviation instructs to decide whether to put into AGC.
Preferably, it when monitoring objective load and actual power deviation are more than the first preset value, is pressed by AGC investment/excision
Button cuts off AGC instruction.
Preferably, burning in circulating fluid bed boiler control device further includes digital electric mode transfer block, the electric mode transfer block of number
It is connect with turbine main control, the pitch aperture of turbine main control is adjusted by digital electric mode transfer block.
Preferably, the feeder has several, and each feeder is equipped with Coal feeder bias, inclined by adjusting feeder
Set the coal-supplying amount of the setting value adjusting feeder of the coal-supplying amount for adjusting feeder or adjusting fuel master control.
The present invention has the advantage that compared with prior art
(1) the circulating fluidized bed boiler control method provided through the invention, only needs artificial selection boiler master and vapour
The investing method of owner's control, so that it may automatically adjust main vapour pressure, avoid artificial frequently intervention, reduce labor intensity.
(2) it is full-automatic to can be realized burning in circulating fluid bed boiler control process by the present invention, it is only necessary to artificial monitoring objective
The deviation of load and actual load, ability manual intervention when failure reduce the amount of labour.
(3) coal-supplying amount of feeder of the present invention is by adjusting the setting value of its corresponding biasing or adjusting fuel master control
Can, it is simple and convenient.
Detailed description of the invention
Fig. 1 is a kind of flow chart for burning in circulating fluid bed boiler control method that the embodiment of the present invention 1 provides；
Fig. 2 is a kind of schematic illustration for burning in circulating fluid bed boiler control method that the embodiment of the present invention 1 provides；
Fig. 3 is a kind of structural schematic diagram for burning in circulating fluid bed boiler control device that the embodiment of the present invention 2 provides.
Specific embodiment
It elaborates below to the embodiment of the present invention, the present embodiment carries out under the premise of the technical scheme of the present invention
Implement, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following implementation
Example.
Embodiment 1
As depicted in figs. 1 and 2, a kind of burning in circulating fluid bed boiler control method, which comprises
Button is put into/cut off by AGC when step S1:AGC is put into select AGC instruction or CCS load instruction；
Step S2:AGC instruction or CCS load instruction limit restriction through overload up/down and limit range in load up/down
It is interior；
Rate is limited in preset speed range by step S3:AGC instruction or CCS load instruction by rate limit；
Step S4:AGC instruction or CCS load instruction carry out about load through the limitation of overload up/down and rate limit
Load instruction is formed after beam；
It should be noted that the limit limitation of load up/down, which refers to, is limited to load up/down for AGC instruction or CCS load instruction
In the range of limit, rate limit, which refers to, is limited to AGC instruction or CCS load instruction within the speed range of setting.
Step S5: the setting value by the sum of load instruction and primary frequency modulation load instruction as power governor；
Step S6: load instruction is converted to sliding pressure definite value, the conduct of the sum of sliding pressure definite value and pressure-biased by sliding pressure curve
Target main vapour pressure；
Step S7: by cunning/level pressure select button selection target main vapour pressure when sliding pressure is put into, level pressure passes through when putting into
Cunning/level pressure select button selects pressure set points；
Step S8: target main vapour pressure or pressure set points pass through rate limit as steam turbine pressure regulator and boiler
The setting value of master control；
It should be noted that sliding pressure curve is the prior art, its functional relation and curve definitions are not retouched herein
It states.Pressure-biased is for adjusting target main vapour pressure adjustable parameter.Pressure set points are pre-set pressure values.
Step S9: if boiler master investment is automatic, turbine main control investment is automatic, enter CCS mode, steam turbine passes through at this time
Power governor regulation power, boiler adjust main vapour pressure by boiler master；If boiler master puts into automatic, turbine main control not
Investment is automatic, then enters BF mode, adjust main vapour pressure by boiler master at this time；If boiler master is not put into automatically, steam turbine
Master control investment is automatic, then enters TF mode, adjusts main vapour pressure by steam turbine pressure regulator at this time；If boiler master is not put into
Automatically, turbine main control is not put into automatically, then enters machine furnace manual mode；Specifically, turbine main control adjusts DEH to adjust by number electricity
The pitch aperture of turbine main control.The control method provided through the invention only needs artificial selection boiler master and turbine main control
Investing method, so that it may automatically adjust main vapour pressure, avoid it is artificial frequently intervene, reduce labor intensity.For CCS mould
Formula, BF mode and TF mode belong to the prior art, and the application designing points are the automatic switchover strategy to various ways, until
In the meaning of each mode, this will not be repeated here.
Step S10: boiler master exports fuel command, the setting of the sum of fuel command and the biasing of coal amount as fuel master control
Value；
Step S11: the sum of the setting value of fuel master control and Coal feeder bias are used as feeder frequency conversion instruction, are given by adjusting
Coal machine frequency conversion instruction adjusts coal-supplying amount.
Specifically, the feeder has several, each feeder is equipped with Coal feeder bias, inclined by adjusting feeder
The coal-supplying amount of the setting value adjusting feeder of the coal-supplying amount for adjusting feeder or adjusting fuel master control is set, is only arranged in the present embodiment
Four feeders are lifted, number is A, B, C, D respectively, and each feeder has its corresponding biasing, when between each feeder
There are when the deviation of coal-supplying amount, coal-supplying amount is finely adjusted by adjusting feeder corresponding biasing.It should be noted that coal amount
Biasing and the biasing of coal machine are the adjustable parameters to adjust coal conservation setting.
As a preferred solution of the present invention, the step 1 further include: put into/cut off button choosing by AGC when AGC is put into
Select AGC instruction or CCS load instruction, AGC instruction or CCS load instruction be superimposed with primary frequency modulation load instruction after through overload
Up/down limit limitation load is constrained, formed target load, determined by monitoring objective load and actual power deviation be
No investment AGC instruction.When monitoring objective load and actual power deviation are more than the first preset value, put by AGC/cut off button
Cut off AGC instruction.It is full-automatic that control method through the invention can be realized burning in circulating fluid bed boiler control process, only needs
Want the deviation of artificial monitoring objective load and actual load, ability manual intervention adjustment AGC instruction when failure does not have faulty
In the case of automatic running, reduce the amount of labour.
Embodiment 2
As shown in figure 3, the present invention also provides a kind of burning in circulating fluid bed boiler control device, including AGC selecting module,
First load up/down limits module, first rate limits module, load instruction generation module, the first laminating module, the second superposition mould
Block, cunning/level pressure selecting module, the second rate limit blocks, mode selection module, third laminating module and the 4th superposition mould
Block；
The AGC selecting module puts into/cuts off button by AGC when for AGC investment and selects AGC instruction or CCS negative
Lotus instruction；
The first load up/down limits module, for AGC instruction or CCS load instruction to be constrained in load up/down limit
In range；
The first rate limits module, and for limiting the rate of AGC instruction or CCS load instruction, rate is limited
In preset speed range；
The load instruction generation module limits module by the first load up/down for AGC instruction or CCS load instruction
And first rate limitation module constrains load, forms load instruction；
First laminating module, for by the sum of load instruction and primary frequency modulation load instruction as power governor
Setting value；
Second laminating module, for load instruction to be converted to sliding pressure definite value by sliding pressure curve, sliding pressure definite value with
The sum of pressure-biased is used as target main vapour pressure；
The cunning/level pressure selecting module, for passing through the main vapour pressure of cunning/level pressure select button selection target when sliding pressure investment
Power selects pressure set points by cunning/level pressure select button when level pressure is put into；
Second rate limit blocks, for target main vapour pressure or pressure set points to be passed through rate limit as vapour
The setting value of machine pressure regulator and boiler master；
The mode selection module, for selecting CCS mould when boiler master investment is automatic, turbine main control investment is automatic
Formula, steam turbine adjusts main vapour pressure by boiler master by power governor regulation power, boiler at this time；It is put into boiler master
Automatically, when turbine main control does not put into automatic, BF mode is selected, main vapour pressure is adjusted by boiler master at this time；In boiler master
It does not put into automatically, when turbine main control investment is automatic, selects TF mode, main vapour pressure is adjusted by steam turbine pressure regulator at this time；
It is not put into automatically in boiler master, when turbine main control does not put into automatic, selects machine furnace manual mode；
The third laminating module, the fuel command for exporting boiler master are superimposed with the biasing of coal amount as fuel master
The setting value of control；
4th laminating module is used as feeder frequency conversion for the setting value of fuel master control to be superimposed with Coal feeder bias
Instruction adjusts coal-supplying amount by adjusting feeder frequency conversion instruction.The feeder has several, and each feeder is equipped with to coal
Machine biasing adjusts the coal-supplying amount of feeder or the setting value adjusting feeder of adjusting fuel master control by adjusting Coal feeder bias
Coal-supplying amount.
As the preferred embodiment of the embodiment of the present invention 2, the burning in circulating fluid bed boiler control device further includes target
Load generation module, the second load up/down limit module and the 5th laminating module, the AGC selecting module are logical when AGC is put into
It crosses AGC and puts into/cut off button selection AGC instruction or CCS load instruction, AGC instruction or CCS load instruction and primary frequency modulation are born
Lotus instruction constrains load by the second load up/down limit module after the superposition of the 5th laminating module, forms target load,
Decide whether to put into AGC instruction by monitoring objective load and actual power deviation.Monitoring objective load and actual power are inclined
When difference is more than the first preset value, button is put into/cut off by AGC and cut off AGC instruction.
As the preferred embodiment of the embodiment of the present invention 2, the burning in circulating fluid bed boiler control device further includes number
Electric mode transfer block, the electric mode transfer block of number connect with turbine main control, are opened by the pitch that digital electric mode transfer block adjusts turbine main control
Degree.
By above technical scheme, a kind of burning in circulating fluid bed boiler control method and device tool provided by the present invention
The advantages of having automatic control main vapour pressure, reducing manual labor amount, while control method of the invention makes recirculating fluidized bed pot
Furnace burning, which is realized, to be automatically controlled, and is automatically switched operating mode, is reduced manual intervention, reduces workload.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of burning in circulating fluid bed boiler control method, which is characterized in that the described method includes:
Step 1: button is put into/cut off by AGC when AGC is put into and select AGC instruction or CCS load instruction；
Step 2: AGC instruction or CCS load instruction limit in range through overload up/down limit restriction in load up/down；
Step 3: rate is limited in preset speed range by AGC instruction or CCS load instruction by rate limit；
Step 4: AGC instruction or CCS load instruction are after the limitation of overload up/down and rate limit constrain load
Form load instruction；
Step 5: the setting value by the sum of load instruction and primary frequency modulation load instruction as power governor；
Step 6: load instruction is converted to sliding pressure definite value by sliding pressure curve, and the sum of sliding pressure definite value and pressure-biased are used as target
Main vapour pressure；
Step 7: by cunning/level pressure select button selection target main vapour pressure when sliding pressure is put into, by sliding/fixed when level pressure is put into
Select button is pressed to select pressure set points；
Step 8: target main vapour pressure or pressure set points pass through rate limit as steam turbine pressure regulator and boiler master
Setting value；
Step 9: if boiler master investment is automatic, turbine main control investment is automatic, enter CCS mode, steam turbine passes through power at this time
Adjuster regulation power, boiler adjust main vapour pressure by boiler master；If boiler master investment is automatic, turbine main control is not put into
Automatically, then enter BF mode, main vapour pressure is adjusted by boiler master at this time；If boiler master is not put into automatically, turbine main control
Investment is automatic, then enters TF mode, adjusts main vapour pressure by steam turbine pressure regulator at this time；If boiler master is not put into certainly
Dynamic, turbine main control is not put into automatically, then enters machine furnace manual mode；
Step 10: boiler master exports fuel command, the setting value of the sum of fuel command and the biasing of coal amount as fuel master control；
Step 11: the sum of the setting value of fuel master control and Coal feeder bias are used as feeder frequency conversion instruction, by adjusting to coal
Machine frequency conversion instruction adjusts coal-supplying amount.
2. burning in circulating fluid bed boiler control method according to claim 1, which is characterized in that the step 1 is also wrapped
It includes: putting into/cut off button by AGC when AGC is put into and select AGC instruction or CCS load instruction, AGC instruction or CCS load refer to
Order constrains load through the limit limitation of overload up/down after being superimposed with primary frequency modulation load instruction, forms target load, passes through
Monitoring objective load and actual power deviation instruct to decide whether to put into AGC.
3. burning in circulating fluid bed boiler control method according to claim 2, which is characterized in that monitoring objective load with
When actual power deviation is more than the first preset value, button is put into/cut off by AGC and cut off AGC instruction.
4. burning in circulating fluid bed boiler control method according to claim 1, which is characterized in that the step 3 is also wrapped
It includes: the pitch aperture for adjusting DEH to adjust turbine main control by digital electricity.
5. burning in circulating fluid bed boiler control method according to claim 1, which is characterized in that the step 4 is also wrapped
Include: the feeder has several, and each feeder is equipped with Coal feeder bias, adjusts feeder by adjusting Coal feeder bias
Coal-supplying amount or adjust fuel master control setting value adjust feeder coal-supplying amount.
6. a kind of burning in circulating fluid bed boiler control device, which is characterized in that including AGC selecting module, the first load up/down
Limit module, first rate limitation module, load instruction generation module, the first laminating module, the second laminating module, cunning/level pressure choosing
Select module, the second rate limit blocks, mode selection module, third laminating module and the 4th laminating module；
The AGC selecting module puts into/cuts off button by AGC when for AGC investment and AGC instruction or CCS load is selected to refer to
It enables；
The first load up/down limits module, for AGC instruction or CCS load instruction to be constrained in load up/down limit range
It is interior；
The first rate limits module, for limiting the rate of AGC instruction or CCS load instruction, rate is limited to pre-
If speed range in；
The load instruction generation module, for AGC instruction or CCS load instruction by the first load up/down limit module and the
One rate limit blocks constrain load, form load instruction；
First laminating module, for the setting by the sum of load instruction and primary frequency modulation load instruction as power governor
Value；
Second laminating module, for load instruction to be converted to sliding pressure definite value, sliding pressure definite value and pressure by sliding pressure curve
The sum of biasing is used as target main vapour pressure；
The cunning/level pressure selecting module, it is fixed by cunning/level pressure select button selection target main vapour pressure when for sliding pressure investment
Pressure set points are selected by cunning/level pressure select button when pressure investment；
Second rate limit blocks, for target main vapour pressure or pressure set points to be passed through rate limit as steam turbine pressure
The setting value of draught control mechanism and boiler master；
The mode selection module, for selecting CCS mode when boiler master investment is automatic, turbine main control investment is automatic, this
When steam turbine by power governor regulation power, boiler adjusts main vapour pressure by boiler master；Boiler master investment it is automatic,
When turbine main control does not put into automatic, BF mode is selected, main vapour pressure is adjusted by boiler master at this time；It is not put into boiler master
Automatically, when turbine main control investment is automatic, TF mode is selected, main vapour pressure is adjusted by steam turbine pressure regulator at this time；In boiler
Master control is not put into automatically, when turbine main control does not put into automatic, selects machine furnace manual mode；
The third laminating module, the fuel command for exporting boiler master are superimposed with the biasing of coal amount as fuel master control
Setting value；
4th laminating module is used as feeder frequency conversion to refer to for the setting value of fuel master control to be superimposed with Coal feeder bias
It enables, adjusts coal-supplying amount by adjusting feeder frequency conversion instruction.
7. burning in circulating fluid bed boiler control method according to claim 6, which is characterized in that further include target load
Generation module, the second load up/down limit module and the 5th laminating module, the AGC selecting module pass through when AGC is put into
AGC puts into/cuts off button selection AGC instruction or CCS load instruction, AGC instruction or CCS load instruction and primary frequency modulation load
Instruction constrains load by the second load up/down limit module after the superposition of the 5th laminating module, forms target load, leads to
Monitoring objective load and actual power deviation are crossed to decide whether to put into AGC instruction.
8. burning in circulating fluid bed boiler control method according to claim 7, which is characterized in that monitoring objective load with
When actual power deviation is more than the first preset value, button is put into/cut off by AGC and cut off AGC instruction.
9. burning in circulating fluid bed boiler control method according to claim 6, which is characterized in that further include that digital electricity is adjusted
Module, the electric mode transfer block of number are connect with turbine main control, and the pitch aperture of turbine main control is adjusted by digital electric mode transfer block.
10. burning in circulating fluid bed boiler control method according to claim 6, which is characterized in that the feeder has
Several, each feeder is equipped with Coal feeder bias, and the coal-supplying amount or tune of feeder are adjusted by adjusting Coal feeder bias
The setting value for saving fuel master control adjusts the coal-supplying amount of feeder.
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| CN201910447221.6A CN110094724A (en) | 2019-05-27 | 2019-05-27 | A kind of burning in circulating fluid bed boiler control method and device |
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| CN201910447221.6A CN110094724A (en) | 2019-05-27 | 2019-05-27 | A kind of burning in circulating fluid bed boiler control method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114153146A (en) * | 2021-11-19 | 2022-03-08 | 国网新疆电力有限公司电力科学研究院 | Machine-furnace coordination autonomous switching control method responding to power grid frequency modulation |
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