CN105066458A - Energy-saving control system for centralized heating boiler - Google Patents
Energy-saving control system for centralized heating boiler Download PDFInfo
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- CN105066458A CN105066458A CN201510528850.3A CN201510528850A CN105066458A CN 105066458 A CN105066458 A CN 105066458A CN 201510528850 A CN201510528850 A CN 201510528850A CN 105066458 A CN105066458 A CN 105066458A
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Abstract
The invention belongs to the field of boiler automatic control and particularly relates to an energy-saving control system for a centralized heating boiler. The energy-saving control system comprises an upper computer control system which is based on a PLC and located at a control center and a lower computer control system which is based on a PLC and located at the boiler site. The upper computer control system based on the PLC and the lower computer control system based on the PLC are in communication through interchangers. A boiler burning system self-optimizing control algorithm and an organization operation strategy are included in the lower computer control system which is based on the PLC and located at the boiler site. Automatic energy-saving and efficient control over the centralized heating boiler is achieved. According to the energy-saving control system for the centralized heating boiler, the modular design is adopted, each module can be optimized independently, and upgrading, control management and future maintenance of the entire system are facilitated; the boiler burning process can be controlled automatically through the designed control system, the production technological requirement is met, energy consumption is effectively lowered, and the production management level is improved.
Description
Invention field
The present invention relates to intelligent control system for boiler, specifically relate to a kind of central heating boiler energy-saving control system.
Background technology
The combustion system of boiler is a multi-parameter object, many disturbances, the system of each parameter cross influence.There is larger uncertainty, complexity, unstability in chain type boiler, and larger capacity lag and longer lag time.Therefore, adopt conventional PID to regulate and be difficult to reach control overflow, even cannot drop into automatic operation.Analyze the ruuning situation of existing many boiler automatic control systems and Chain Grate Stoker Heat-Water Boiler, really there is following controlling difficulties:
(1) Chain Grate Stoker Heat-Water Boiler produces heat from its burning that changes to of coal input quantity, and boiler outlet water temperature degree is changed need longer time, namely boiler outlet water temperature degree pure delay time is long, capacity lag is large, is difficult to obtain desirable effect with simple pid control algorithm.
(2) change of ature of coal, causes the change of wind-coal ratio, adopts general fixed set point control system that system cannot be made to operate in the fired state of the best or suboptimum all the time.
(3) combustion process complicated mechanism, affects the many factors of combustion conditions, and object variation is comparatively large, is difficult to set up single Controlling model exactly;
How to overcome above difficult point, while realizing the intelligentized control method of central heating boiler, realize the raising of boiler combustion efficiency, reach the object of energy-saving and emission-reduction economize energy, and effectively ensure boiler safety, stable, economical operation is worth research.
Summary of the invention
For solving the problems of the technologies described above, the object of this invention is to provide a kind of central heating boiler energy-saving control system.
For achieving the above object, the technical solution used in the present invention is:
A kind of central heating boiler energy-saving control system, comprise the upper computer control system based on PLC being positioned at control centre, be positioned at the lower computer control system based on PLC at boiler scene, also comprise the switch system that the upper computer control system based on PLC communicates with the lower computer control system based on PLC, described switch system comprises the multiple switches one being positioned at boiler scene and the switch two being positioned at control centre, described multiple switches one correspond respectively to the PLC at each boiler scene, it is characterized in that: described in be positioned at boiler scene the lower computer control system based on PLC comprise the PLC one controlling separately the every platform boiler condition parameter of monitoring and the PLC two controlling each the public partial parameters of boiler, the described control centre that is positioned at comprises PC engineer station based on the upper computer control system of PLC, multiple printer and multiple pc client, described PLC one communicates with switch one corresponding with it respectively by common Ethernet with PLC two, by while interconnective fiber optic cables communication between each switch one, also communicated with the switch two being positioned at control centre by fiber optic cables, described PC engineer station, multiple printer and multiple pc client are communicated with switch two by common Ethernet, the described lower computer control system based on PLC being arranged in boiler scene is also provided with boiler combustion system from seeking control algolithm and operation strategy, the boiler combustion system realizing central heating boiler controls, boiler furnace pressure regulable control, the automatic energy saving playing central heating boiler efficiently controls.
Described PLC one controls the every platform boiler condition parameter of monitoring and comprises controling parameters and monitoring parameter, and controling parameters comprises boiler Inlet and outlet water temperature, furnace pressure, Inlet and outlet water pressure, the blow rate required, absorbing quantity, fire grate rotating speed and layering coal supply amount parameter; Monitoring parameter comprises halved tie tube inlet cigarette pressure, halved tie tube inlet cigarette temperature, furnace outlet cigarette pressure, furnace outlet gas temperature degree, air blast running status, air-introduced machine running status, fire grate running status and layering coal supply running state parameter; Described PLC two controls the operation that each the public partial parameters of boiler comprises circulating pump and small pump, the signal parameter of outdoor temperature, the total supply water temperature of a secondary net, the total return water temperature of a secondary net, outlet main-piping pressure, the total pressure of supply water of a secondary net and the total pressure of return water of a secondary net.
Described PC engineer station is the PC based on PLC, be provided with people interface, be built-in with industrial control software and data repository, store for data, show and management, the technique change of full factory can be monitored in real time, equipment runs, fault oestruses condition, and carry out multiple operation realization regulation and control by man-machine interface, be responsible for the printing of daily production report, accident printing simultaneously.
Described man-machine interface comprise monitoring interface, regulating loop display interface, alarm indication interface, historical data retrieval and result for retrieval analyze display interface, can editing parameter display interface, report display and printing interface, system security management interface.
Described multiple pc client is respectively used to client's monitor data.
What described switch system adopted is SLM224G2 switch.
The workflow of the described control algolithm of seeking certainly is as follows:
(1) stable situation of boiler is judged: when the measured value Tt of boiler hearth temperature and the difference of Theory of Combustion value Ts are in steady-state deviation ε T is with, and without large load disturbance amount, namely | Tt-Ts| < ε T, Δ D < ε D, then boiler stable state, wherein: Δ D is the disturbance quantity of load, ε T is relevant with the type of furnace and the method for operation with the value of ε D, can adjust according to actual conditions;
(2) timer t
1start timing, all meet limit at the appointed time, then optimizing starts, otherwise t
1reset, retime;
(3) best wind-coal ratio is judged: if optimizing index T maximizing, then represent that there is best wind-coal ratio, when optimizing index T2, T1 meet | T2-T1| < ε, ε are infinitely small quantity, then represent and search best operating point K.
Beneficial effect of the present invention:
The present invention adopts modularized design; each module can be independent optimization; be convenient to the upgrading of whole system, control and management and maintenance in the future; and possess explorative completely; the system of ensure that has good expandability; protect customer investment, whole system is convenient for installation and maintenance, stable, reliable, man-machine interface is friendly.Show through operative practice, the control system designed herein achieves the automatic control of boiler combustion process, meets manufacturing technique requirent, significantly reduces energy consumption, improve production management level.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is of the present invention from seeking control algolithm flow chart;
Fig. 3 is boiler combustion system control chart of the present invention;
Fig. 4 is boiler furnace pressure regulable control figure of the present invention;
Wherein: the upper computer control system based on PLC 1, being positioned at control centre; 2, the lower computer control system based on PLC at boiler scene is positioned at; 3, switch one; 4, switch two; 5, PLC one; 6, PLC two; 7, PC engineer station; 8, pc client; 9, printer.
Detailed description of the invention
Below in conjunction with specific embodiment, technical scheme of the present invention is further described.
A kind of central heating boiler energy-saving control system, comprise the upper computer control system 1 based on PLC being positioned at control centre, be positioned at the lower computer control system 2 based on PLC at boiler scene, also comprise the switch system that the upper computer control system based on PLC communicates with the lower computer control system based on PLC, described switch system comprises the switch 24 being positioned at the on-the-spot multiple switch 1 of boiler and being positioned at control centre, described multiple switches 1 correspond respectively to the PLC at each boiler scene, it is characterized in that: described in be positioned at boiler scene the lower computer control system 2 based on PLC comprise the PLC 1 controlling separately the every platform boiler condition parameter of monitoring and the PLC 26 controlling each the public partial parameters of boiler, the described control centre that is positioned at comprises PC engineer station 7 based on the upper computer control system 1 of PLC, multiple printer 9 and multiple pc client 8, described PLC 1 communicates with switch 1 corresponding with it respectively by common Ethernet with PLC 26, by while interconnective fiber optic cables communication between each switch 1, also communicated with the switch 24 being positioned at control centre by fiber optic cables, described PC engineer station 7, multiple printer 9 and multiple pc client 8 are communicated with switch 24 by common Ethernet, the described lower computer control system based on PLC being arranged in boiler scene is also provided with boiler combustion system from seeking control algolithm and operation strategy, the boiler combustion system realizing central heating boiler controls, boiler furnace pressure regulable control, the automatic energy saving playing central heating boiler efficiently controls.
Described PLC 1 controls the every platform boiler condition parameter of monitoring and comprises controling parameters and monitoring parameter, and controling parameters comprises boiler Inlet and outlet water temperature, furnace pressure, Inlet and outlet water pressure, the blow rate required, absorbing quantity, fire grate rotating speed and layering coal supply amount parameter; Monitoring parameter comprises halved tie tube inlet cigarette pressure, halved tie tube inlet cigarette temperature, furnace outlet cigarette pressure, furnace outlet gas temperature degree, air blast running status, air-introduced machine running status, fire grate running status and layering coal supply running state parameter; Described PLC 26 controls the operation that each the public partial parameters of boiler comprises circulating pump and small pump, the signal parameter of outdoor temperature, the total supply water temperature of a secondary net, the total return water temperature of a secondary net, outlet main-piping pressure, the total pressure of supply water of a secondary net and the total pressure of return water of a secondary net.
Described PC engineer station 7 is the PC based on PLC, be provided with people interface, be built-in with industrial control software and data repository, store for data, show and management, the technique change of full factory can be monitored in real time, equipment runs, fault oestruses condition, and carry out multiple operation realization regulation and control by man-machine interface, be responsible for the printing of daily production report, accident printing simultaneously.
Described man-machine interface comprise monitoring interface, regulating loop display interface, alarm indication interface, historical data retrieval and result for retrieval analyze display interface, can editing parameter display interface, report display and printing interface, system security management interface.
Described multiple pc client 8 is respectively used to client's monitor data.
What described switch system adopted is SLM224G2 switch.
The workflow of the described control algolithm of seeking certainly is as follows:
(1) stable situation of boiler is judged: when the measured value Tt of boiler hearth temperature and the difference of Theory of Combustion value Ts are in steady-state deviation ε T is with, and without large load disturbance amount, namely | Tt-Ts| < ε T, Δ D < ε D, then boiler stable state, wherein: Δ D is the disturbance quantity of load, ε T is relevant with the type of furnace and the method for operation with the value of ε D, can adjust according to actual conditions;
(2) timer t
1start timing, all meet limit at the appointed time, then optimizing starts, otherwise t
1reset, retime;
(3) best wind-coal ratio is judged: if optimizing index T maximizing, then represent that there is best wind-coal ratio, when optimizing index T2, T1 meet | T2-T1| < ε, ε are infinitely small quantity, then represent and search best operating point K.
Claims (7)
1. a central heating boiler energy-saving control system, comprise the upper computer control system based on PLC being positioned at control centre, be positioned at the lower computer control system based on PLC at boiler scene, also comprise the switch system that the upper computer control system based on PLC communicates with the lower computer control system based on PLC, described switch system comprises the multiple switches one being positioned at boiler scene and the switch two being positioned at control centre, described multiple switches one correspond respectively to the PLC at each boiler scene, it is characterized in that: described in be positioned at boiler scene the lower computer control system based on PLC comprise the PLC one controlling separately the every platform boiler condition parameter of monitoring and the PLC two controlling each the public partial parameters of boiler, the described control centre that is positioned at comprises PC engineer station based on the upper computer control system of PLC, multiple printer and multiple pc client, described PLC one communicates with switch one corresponding with it respectively by common Ethernet with PLC two, by while interconnective fiber optic cables communication between each switch one, also communicated with the switch two being positioned at control centre by fiber optic cables, described PC engineer station, multiple printer and multiple pc client are communicated with switch two by common Ethernet, the described lower computer control system based on PLC being arranged in boiler scene is also provided with boiler combustion system from seeking control algolithm and operation strategy, the boiler combustion system realizing central heating boiler controls, boiler furnace pressure regulable control, the automatic energy saving playing central heating boiler efficiently controls.
2. a kind of central heating boiler energy-saving control system according to claim 1, it is characterized in that: described PLC one controls the every platform boiler condition parameter of monitoring and comprises controling parameters and monitoring parameter, and controling parameters comprises boiler Inlet and outlet water temperature, furnace pressure, Inlet and outlet water pressure, the blow rate required, absorbing quantity, fire grate rotating speed and layering coal supply amount parameter; Monitoring parameter comprises halved tie tube inlet cigarette pressure, halved tie tube inlet cigarette temperature, furnace outlet cigarette pressure, furnace outlet gas temperature degree, air blast running status, air-introduced machine running status, fire grate running status and layering coal supply running state parameter; Described PLC two controls the operation that each the public partial parameters of boiler comprises circulating pump and small pump, the signal parameter of outdoor temperature, the total supply water temperature of a secondary net, the total return water temperature of a secondary net, outlet main-piping pressure, the total pressure of supply water of a secondary net and the total pressure of return water of a secondary net.
3. a kind of central heating boiler energy-saving control system according to claim 1, it is characterized in that: described PC engineer station is the PC based on PLC, be provided with people interface, be built-in with industrial control software and data repository, store for data, show and management, can monitor the technique change of full factory in real time, equipment runs, fault oestruses condition, and carry out multiple operation realization regulation and control by man-machine interface, responsible daily production report printing, accident print simultaneously.
4. a kind of central heating boiler energy-saving control system according to claim 3, is characterized in that: described man-machine interface comprise monitoring interface, regulating loop display interface, alarm indication interface, historical data retrieval and result for retrieval analyze display interface, can editing parameter display interface, report display and printing interface, system security management interface.
5. a kind of central heating boiler energy-saving control system according to claim 1, is characterized in that: described multiple pc client is respectively used to client's monitor data.
6. a kind of central heating boiler energy-saving control system according to claim 1, is characterized in that: what described switch system adopted is SLM224G2 switch.
7. a kind of central heating boiler energy-saving control system according to claim 1, is characterized in that: the workflow of the described control algolithm of seeking certainly is as follows:
(1) stable situation of boiler is judged: when the measured value Tt of boiler hearth temperature and the difference of Theory of Combustion value Ts are in steady-state deviation ε T is with, and without large load disturbance amount, namely | Tt-Ts| < ε T, Δ D < ε D, then boiler stable state, wherein: Δ D is the disturbance quantity of load, ε T is relevant with the type of furnace and the method for operation with the value of ε D, can adjust according to actual conditions;
(2) timer t
1start timing, all meet limit at the appointed time, then optimizing starts, otherwise t
1reset, retime;
(3) best wind-coal ratio is judged: if optimizing index T maximizing, then represent that there is best wind-coal ratio, when optimizing index T2, T1 meet | T2-T1| < ε, ε are infinitely small quantity, then represent and search best operating point K.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510528850.3A CN105066458A (en) | 2015-08-26 | 2015-08-26 | Energy-saving control system for centralized heating boiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510528850.3A CN105066458A (en) | 2015-08-26 | 2015-08-26 | Energy-saving control system for centralized heating boiler |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953437A (en) * | 2016-06-29 | 2016-09-21 | 无锡锡能锅炉有限公司 | Automatic control method for boiler combustion process |
| CN106091394A (en) * | 2016-06-29 | 2016-11-09 | 无锡锡能锅炉有限公司 | A kind of control technique of boiler combustion process |
| CN107764075A (en) * | 2016-08-23 | 2018-03-06 | 沈阳铝镁设计研究院有限公司 | Pot type burner automatic temperature control system |
| CN111237803A (en) * | 2020-02-27 | 2020-06-05 | 西安理工大学 | Boiler combustion control system and method based on LabVIEW |
| CN111752172A (en) * | 2020-07-06 | 2020-10-09 | 孙志刚 | Energy-saving management device for energy consumption of IT equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201992741U (en) * | 2011-04-20 | 2011-09-28 | 天津市光彩自控工程有限公司 | Novel automatic control system for heat exchanging station |
| CN202018027U (en) * | 2011-04-20 | 2011-10-26 | 天津市光彩自控工程有限公司 | Automatic control system for full-automatic coal burning boiler |
| CN204740494U (en) * | 2015-07-14 | 2015-11-04 | 天津光彩伟业科技有限公司 | Energy -efficient central heating automated control system |
-
2015
- 2015-08-26 CN CN201510528850.3A patent/CN105066458A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201992741U (en) * | 2011-04-20 | 2011-09-28 | 天津市光彩自控工程有限公司 | Novel automatic control system for heat exchanging station |
| CN202018027U (en) * | 2011-04-20 | 2011-10-26 | 天津市光彩自控工程有限公司 | Automatic control system for full-automatic coal burning boiler |
| CN204740494U (en) * | 2015-07-14 | 2015-11-04 | 天津光彩伟业科技有限公司 | Energy -efficient central heating automated control system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953437A (en) * | 2016-06-29 | 2016-09-21 | 无锡锡能锅炉有限公司 | Automatic control method for boiler combustion process |
| CN106091394A (en) * | 2016-06-29 | 2016-11-09 | 无锡锡能锅炉有限公司 | A kind of control technique of boiler combustion process |
| CN107764075A (en) * | 2016-08-23 | 2018-03-06 | 沈阳铝镁设计研究院有限公司 | Pot type burner automatic temperature control system |
| CN111237803A (en) * | 2020-02-27 | 2020-06-05 | 西安理工大学 | Boiler combustion control system and method based on LabVIEW |
| CN111752172A (en) * | 2020-07-06 | 2020-10-09 | 孙志刚 | Energy-saving management device for energy consumption of IT equipment |
| CN111752172B (en) * | 2020-07-06 | 2021-07-23 | 孙志刚 | Energy-saving management device for energy consumption of IT equipment |
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Application publication date: 20151118 |