CN110006025A - A kind of boiler pressure regulation method, equipment and storage medium based on PID - Google Patents
A kind of boiler pressure regulation method, equipment and storage medium based on PID Download PDFInfo
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- CN110006025A CN110006025A CN201910228256.0A CN201910228256A CN110006025A CN 110006025 A CN110006025 A CN 110006025A CN 201910228256 A CN201910228256 A CN 201910228256A CN 110006025 A CN110006025 A CN 110006025A
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- Prior art keywords
- pid
- pressure
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- computer
- input power
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000007704 transition Effects 0.000 claims abstract description 19
- 238000012423 maintenance Methods 0.000 claims abstract description 6
- 238000004590 computer program Methods 0.000 claims description 12
- 230000000630 rising effect Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000000116 mitigating effect Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 101100353161 Drosophila melanogaster prel gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B11/00—Automatic controllers
- G05B11/01—Automatic controllers electric
- G05B11/36—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
- G05B11/42—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential for obtaining a characteristic which is both proportional and time-dependent, e.g. P. I., P. I. D.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The invention discloses a kind of, and the boiler pressure based on PID regulates and controls method, equipment and storage medium, and method includes in low pressure section, and PID maintains input power P0 constant, until steam pressure reaches the maximum value of the low pressure section；In first transition, PID control input power is gradually increased by P0, until steam pressure reaches the maximum value of the first transition；Section is being maintained, input power realizes dynamic stability by PID control；The low pressure section, first transition and maintenance three, section pressure range are numerically continuous.Using different pressures interval division at different gears, each gear is controlled based on PID, realize that steam pressure is stably and controllable, reduce unnecessary steam loss, save amount of consumed gas, and reduces since steam pressure fluctuates, reduce the impact to the mechanical part of steam generator and mitigate metal fatigue.
Description
Technical field
The present invention relates to steam generator technical field, in particular to a kind of boiler pressure regulation based on PID
Method, equipment and storage medium.
Background technique
As the use of coal-burning boiler is constantly limited by national policy, clean energy resource is promoted in China
With it is universal, wherein natural gas is widely used in a variety of applications by the advantage of itself, therefore the steam generator of combustion gas is also increasingly
It is universal, but steam generator generallys use the modes such as pressure gauge come steam pressure when regulating and controlling steam pressure, therefore working at present
Be not it is constant, fluctuating range is big, is unable to reach as the steady state effect traditional heating equipment.
Summary of the invention
It is an object of the invention at least solve one of the technical problems existing in the prior art, provide a kind of based on PID
Boiler pressure regulation method, equipment and storage medium, can be avoided the big problem of steam pressure fluctuating range, reduce
Unnecessary steam loss.
According to the first aspect of the invention, a kind of boiler pressure regulation method based on PID is provided, comprising:
In low pressure section, PID maintains input power P0 constant, until steam pressure reaches the maximum of the low pressure section
Value；
In first transition, PID control input power is gradually increased by P0, until steam pressure reaches the rising
The maximum value in section；
Section is being maintained, input power realizes dynamic stability by PID control；
The low pressure section, first transition and maintenance three, section pressure range are numerically continuous.
The boiler pressure based on PID regulates and controls method, the low pressure section according to a first aspect of the present invention
Minimum value be 0bar.
The boiler pressure based on PID regulates and controls method, the first transition according to a first aspect of the present invention
Interior, input power linearly increases.
The boiler pressure based on PID described according to the first aspect of the invention regulates and controls method, input power
Regulation is realized by PID control air intake valve.
The boiler pressure based on PID described according to the first aspect of the invention regulates and controls method, and steam pressure exists
Linearly increase in the low pressure section, first transition and maintenance section, the fluctuation threshold that steam pressure is preset in PID is
0.2bar。
According to the second aspect of the invention, a kind of boiler pressure adjusting device based on PID is provided, including at least
One control processor and memory for being communicated to connect at least one described control processor；The memory is stored with
The instruction that can be executed by least one described control processor, described instruction are executed by least one described control processor, with
At least one described control processor is set to be able to carry out the boiler pressure regulation method based on PID as described above.
According to the third aspect of the invention we, a kind of computer readable storage medium is provided, computer readable storage medium is deposited
Computer executable instructions are contained, computer executable instructions are for executing computer as described above based on the steam of PID
Generator pressure controlling method.
According to the fourth aspect of the invention, a kind of computer program product is provided, the computer program product includes depositing
The computer program on computer readable storage medium is stored up, the computer program includes program instruction, when described program refers to
When order is computer-executed, computer is made to execute the boiler pressure regulation method based on PID as described above.
The one or more technical solutions provided in the embodiment of the present invention at least have the following beneficial effects: using different
Pressure range is divided into different gears, is controlled based on PID each gear, realizes that steam pressure is stably and controllable, reduces
Unnecessary steam loss is saved amount of consumed gas, and is reduced since steam pressure fluctuates, and reduces to steam generator
The impact of mechanical part and mitigation metal fatigue.
Detailed description of the invention
The present invention is further explained with reference to the accompanying drawings and examples；
Fig. 1 is the flow diagram of the embodiment of the present invention；
Fig. 2 is steam pressure-input power relational graph of the embodiment of the present invention.
Specific embodiment
This part will be described in specific embodiments of the present invention, and the preferred embodiments of the invention is shown in the accompanying drawings, attached
The effect of figure be with figure remark additionally book word segment description, enable a person to intuitively, visually understand of the invention
Each technical characteristic and overall technical architecture, but it should not be understood as limiting the scope of the invention.
It should be noted that each feature in the embodiment of the present invention can be combined with each other, in this hair if do not conflicted
Within bright protection scope.In addition, though having carried out functional module division in schematic device, shows patrol in flow charts
Sequence is collected, but in some cases, it can be shown in the sequence execution in the module division being different from device or flow chart
The step of out or describing.
In description of the invention, unless otherwise restricted clearly, the words such as setting, installation, connection be shall be understood in a broad sense, institute
Above-mentioned word in the present invention specific can rationally be determined with the particular content of combination technology scheme by belonging to technical field technical staff
Meaning.
Referring to Figures 1 and 2, in a first aspect, one embodiment of the invention is related to a kind of boiler pressure based on PID
Regulation method, comprising:
In low pressure section, PID maintains input power P0 constant, until steam pressure reaches the maximum of the low pressure section
Value；
In first transition, PID control input power is gradually increased by P0, until steam pressure reaches the rising
The maximum value in section；
Section is being maintained, input power realizes dynamic stability by PID control；
The low pressure section, first transition and maintenance three, section pressure range are numerically continuous.
In the present embodiment, three pressure ranges are set, is equivalent to and three phases is divided into vapour pressure force value, PID can
Different control modes is carried out with the section according to locating for steam pressure, using low-power burning pressurization in low pressure section, is allowed
Steam pressure slowly jumps out low pressure section, guarantees that steam pressure gently increases；Unidirectionally increase input power in first transition, allows steaming
The maximum value of steam pressure rapid increase arrival first transition；The input power dynamic equilibrium in maintaining section, PID in this section
Regulate and control input power according to current steam pressure and set temperature parameter, maintains steam pressure that big fluctuation does not occur, reduce
Impact and mitigation metal fatigue to the mechanical part of steam generator.
Another embodiment of the invention additionally provides a kind of boiler pressure regulation method based on PID, described
The minimum value of low pressure section is 0bar.The present embodiment has actually corresponded to the original state of steam generator booting work, steam
Pressure is 0, therefore the low pressure section actually represents cold start-up to the process between low-pressure state, is steam generator
Cold start-up provides control basis.
Another embodiment of the invention additionally provides a kind of boiler pressure regulation method based on PID, described
In first transition, input power linearly increases.This gives the control method in the first transition, due to from low
Being pressed onto high pressure phase pressure difference may be larger, and slowly pressurization, which may cause steam pressure, to accurately control, therefore in this stage
Steam pressure, time needed for shortening is raised to high pressure are quickly drawn high by the way of unidirectionally increasing input power.
Another embodiment of the invention additionally provides a kind of boiler pressure regulation method based on PID, input
The regulation of power is realized by PID control air intake valve.This gives the input powers of steam generator to pass through intake valve
This component of door realizes control.
Another embodiment of the invention additionally provides a kind of boiler pressure regulation method based on PID, steam
Pressure is in the low pressure section, first transition and maintains linearly to increase in section, and the fluctuation threshold that steam pressure is preset in PID is
0.2bar.Although steam pressure linearly increases in three pressure ranges, due to input power difference, each section
The increase rate of middle steam pressure is not identical, and the big minor adjustment of rate realizes the control of input power by adjusting PID, therefore
It can be directed to different types of steam generator, set different working methods.During specific Steam pressure control, no
It is evitable to will appear a small amount of pressure oscillation, therefore PID forms closed-loop control according to the value of current steam pressure, if steam
Pressure is more than that then PID control input power reduces threshold value, and vice versa, and in the present embodiment, the threshold value of pressure oscillation is set as
0.2bar。
Referring to Fig. 2, steam pressure-input power relational graph of the embodiment of the present invention, wherein the low pressure section indicates model
Enclose for 0-PreL, the first transition indicates that range is PreL-PreH, the maintenances interval table demonstrate enclose for since PreH to
PreSet arrives the limiting value of steam generator again, and wherein the value of PreL, PreH and PreSet are set according to the performance of steam generator
It sets, PreSet is normal working pressure, and allows more than the work of service pressure value, more than the subsequent vapour pressure of PreSet
Power control is determined by the performance of steam generator.
Second aspect, one embodiment of the present of invention additionally provide it is a kind of based on PID boiler pressure regulation set
Standby, including at least one control processor and for being communicated to connect at least one described control processor memory；It is described
Memory is stored with the instruction that can be executed by least one described control processor, and described instruction is by least one described control
It manages device to execute, so that at least one described control processor is able to carry out boiler pressure as described above based on PID
Regulation method.
The third aspect, one embodiment of the present of invention provide a kind of computer readable storage medium, computer-readable storage
Media storage has computer executable instructions, and computer executable instructions are for executing computer as described above based on PID
Boiler pressure regulate and control method.
Fourth aspect, An embodiment provides a kind of computer program product, the computer program is produced
Product include the computer program being stored on computer readable storage medium, and the computer program includes program instruction, work as institute
When stating program instruction and being computer-executed, computer is made to execute the boiler pressure regulation side based on PID as described above
Method.
The embodiment of the present invention is explained in detail above in conjunction with attached drawing, but the present invention is not limited to the above embodiments,
The technical field those of ordinary skill within the scope of knowledge, can also make without departing from the purpose of the present invention
Various change out.
Claims (8)
1. a kind of boiler pressure based on PID regulates and controls method, it is characterised in that: including
In low pressure section, PID maintains input power P0 constant, until steam pressure reaches the maximum value of the low pressure section；
In first transition, PID control input power is gradually increased by P0, until steam pressure reaches the first transition
Maximum value；
Section is being maintained, input power realizes dynamic stability by PID control；
The low pressure section, first transition and maintenance three, section pressure range are numerically continuous.
2. the boiler pressure according to claim 1 based on PID regulates and controls method, it is characterised in that: the low pressure
The minimum value in section is 0bar.
3. the boiler pressure according to claim 1 based on PID regulates and controls method, it is characterised in that: the rising
In section, input power linearly increases.
4. the boiler pressure according to claim 1 based on PID regulates and controls method, it is characterised in that: input power
Regulation realized by PID control air intake valve.
5. the boiler pressure according to claim 1 based on PID regulates and controls method, it is characterised in that: steam pressure
It in the low pressure section, first transition and maintains linearly to increase in section, the fluctuation threshold that steam pressure is preset in PID is
0.2bar。
6. a kind of boiler pressure adjusting device based on PID, it is characterised in that: including at least one control processor and
Memory for being communicated to connect at least one described control processor；The memory be stored with can by it is described at least one
The instruction that control processor executes, described instruction are executed by least one described control processor, so that at least one described control
Processor processed is able to carry out the boiler pressure regulation method as described in any one in claim 1-5 based on PID.
7. a kind of computer readable storage medium, it is characterised in that: the computer-readable recording medium storage has computer can
It executes instruction, the computer executable instructions are as described in any one in claim 1-5 based on PID for executing computer
Boiler pressure regulate and control method.
8. a kind of computer program product, it is characterised in that: can including being stored in computer including the computer program product
The computer program on storage medium is read, the computer program includes program instruction, is held when described program is instructed by computer
When row, computer is made to execute the boiler pressure regulation method as described in any one in claim 1-5 based on PID.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910209473 | 2019-03-19 | ||
| CN2019102094735 | 2019-03-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110006025A true CN110006025A (en) | 2019-07-12 |
Family
ID=67167959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910228256.0A Pending CN110006025A (en) | 2019-03-19 | 2019-03-25 | A kind of boiler pressure regulation method, equipment and storage medium based on PID |
Country Status (1)
| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1168172A (en) * | 1995-02-09 | 1997-12-17 | 西门子公司 | Method and device for starting continuous steam generator |
| CN106402825A (en) * | 2016-09-19 | 2017-02-15 | 青岛科技大学 | Steam generator capable of achieving intelligent temperature control through mobile phone APP |
| CN108691579A (en) * | 2017-04-10 | 2018-10-23 | 新疆知信科技有限公司 | Without the startup method for starting steam after a kind of tripping of thermal power plant's generating set |
| CN108709177A (en) * | 2018-04-03 | 2018-10-26 | 青岛金玉大商贸有限公司 | A kind of steam generator according to gas temperature intelligent control heating power |
-
2019
- 2019-03-25 CN CN201910228256.0A patent/CN110006025A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1168172A (en) * | 1995-02-09 | 1997-12-17 | 西门子公司 | Method and device for starting continuous steam generator |
| CN106402825A (en) * | 2016-09-19 | 2017-02-15 | 青岛科技大学 | Steam generator capable of achieving intelligent temperature control through mobile phone APP |
| CN108691579A (en) * | 2017-04-10 | 2018-10-23 | 新疆知信科技有限公司 | Without the startup method for starting steam after a kind of tripping of thermal power plant's generating set |
| CN108709177A (en) * | 2018-04-03 | 2018-10-26 | 青岛金玉大商贸有限公司 | A kind of steam generator according to gas temperature intelligent control heating power |
Non-Patent Citations (2)
| Title |
|---|
| 《火电厂生产岗位技术问答》编委会: "《集控运行》", 30 June 2010, 中国电力出版社 * |
| 火力发电/山西省电力公司编: "《发供电企业总工必读》", 30 March 2002, 中国电力出版社 * |
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Application publication date: 20190712 |
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