CN201909989U - Automatically-controlled energy-saving system of boiler - Google Patents
Automatically-controlled energy-saving system of boiler Download PDFInfo
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- CN201909989U CN201909989U CN2010206633630U CN201020663363U CN201909989U CN 201909989 U CN201909989 U CN 201909989U CN 2010206633630 U CN2010206633630 U CN 2010206633630U CN 201020663363 U CN201020663363 U CN 201020663363U CN 201909989 U CN201909989 U CN 201909989U
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- programmable logic
- logic controller
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/40—Minimising material used in manufacturing processes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The utility model relates to a control system, in particular to an automatically-controlled energy-saving system of a boiler. In the technical scheme, the automatically-controlled energy-saving system of the boiler is characterized by comprising a programmable controller, an instrument module, a water level control module, an onsite sampling module, a relay isolation control module, an onsite analog control module and a frequency converter, wherein the instrument module, the water level control module, the onsite sampling module, the relay isolation control module and the onsite analog control module are respectively connected with the programmable controller, and the frequency converter is connected with a motor in the boiler device and is also connected with the programmable controller. By adopting the technical scheme of the automatically-controlled energy-saving system of the boiler, hidden safety risks can be eliminated, the production efficiency can be increased, the product quality can be improved, and the consumption of raw materials and energy can also be reduced.
Description
Technical field
The utility model relates to a kind of control system, particularly a kind of boiler robotization control energy conserving system.
Background technology
The development of boiler is T﹠B, and the design of its body and manufacturing process are very ripe, are accompanied by the develop rapidly and the widespread use of Computer Control Technology, and the control system of boiler and mode more and more cause people's attention.
At present, the existing Industrial Boiler of China reaches 300,000, wherein most of automatic control level is very low, there are problems such as burning is not thorough, the smoke evacuation oxygen content is higher, heat loss due to exhaust gas is big, directly caused the waste of the low and a large amount of energy of boiler thermal output, also brought very big pollution simultaneously to environment.
Summary of the invention
At the deficiency that prior art exists, the utility model provides a kind of boiler robotization control energy conserving system that eliminates safe hidden trouble, enhances productivity, improves the quality of products, reduces starting material and energy loss.
For achieving the above object, the utility model provides following technical scheme: a kind of boiler robotization control energy conserving system, it is characterized in that: the instrument module that include Programmable Logic Controller, is connected respectively with Programmable Logic Controller, water level control module, spot sampling module, relay isolated controlling module, in-site modeling control module and the frequency converter that is connected with motor in the boiler plant, described frequency converter is connected with Programmable Logic Controller.
Adopt technique scheme, by setting to Programming of programmable controller and control operation unit, instrument control module and water level control module, realization is to the automatic control of boiler plant, can to coal-supplying amount, feedwater flow, steam flow and the pressure and temp etc. of boiler plant by the side parameter detect, show, warning, integrating and record.Energy savings, thermal efficiency reasonable management, assurance safety in production.
The utility model further is set to: output module, analog output module that described Programmable Logic Controller includes CPU, the digital input module that is connected with the CPU input end respectively, analog input module and is connected with the CPU output terminal respectively; Described water level control module is connected with Programmable Logic Controller by digital input module, relay isolated controlling module is connected with Programmable Logic Controller by output module, the spot sampling module is connected with Programmable Logic Controller by analog input module, and the in-site modeling control module is connected with Programmable Logic Controller by analog output module.
The utility model further is set to: be connected by the photoionization compound module respectively between the input interface of digital input module and output module and CPU and the output interface, be connected by signal condition module and A/D converter between the input interface of analog input module and CPU, be connected by D/A converter between the output interface of analog output module and CPU.
The utility model further is set to: be respectively equipped with alarm module on Programmable Logic Controller, water level control module and the frequency converter.
The utility model further is set to: Programmable Logic Controller also is connected with a man machine operation interface.
The beneficial effects of the utility model are as follows: by to Programming of programmable controller, can be to the setting of instrument control module and water level control module, realization is to the automatic control of boiler plant, can to coal-supplying amount, feedwater flow, steam flow and the pressure and temp etc. of boiler plant by the side parameter detect, show, warning, integrating and record.Energy savings, thermal efficiency reasonable management, assurance safety in production.The setting of frequency converter can receive the information of operation control unit and instrument control module and implement frequency conversion, motor in the boiler plant (blower motor, blower motor, fire grate) is regulated and control, thereby reach the saving electric energy, reduce energy resource consumption, save production cost, improve power factor of electric network, save local compensation, alleviate the degree of wear of moving components such as motor bearings, the purpose that prolongs its serviceable life; The setting of man machine operation interface has powerful self-learning function, adapts to the variation of load behavior automatically, need not artificial the adjustment and perfect operation indication and fault inquiry function, makes things convenient for the line service of equipment management personnel.By above-mentioned control can make boiler plant burning thoroughly, smoke evacuation oxygen content height on the low side, reduce heat loss due to exhaust gas.
In conjunction with the accompanying drawings the utility model is further described.
Description of drawings
Fig. 1 is the theory diagram of the utility model embodiment.
Embodiment
A kind of boiler robotization control energy conserving system as shown in Figure 1, include Programmable Logic Controller (being called for short PLC), the instrument module, water level control module, spot sampling module, relay isolated controlling module, the in-site modeling control module that are connected with Programmable Logic Controller respectively and the frequency converter that is connected with motor in the boiler plant, frequency converter is connected with Programmable Logic Controller.Programmable Logic Controller also is connected with a man machine operation interface, need to prove, man machine operation interface is the MCGS touch-screen.Wherein, the Programmable Logic Controller output module, the analog output module that include CPU, the digital input module that is connected with the CPU input end respectively, analog input module and be connected with the CPU output terminal respectively; Described water level control module is connected with Programmable Logic Controller by digital input module, relay isolated controlling module is connected with Programmable Logic Controller by output module, the spot sampling module is connected with Programmable Logic Controller by analog input module, and the in-site modeling control module is connected with Programmable Logic Controller by analog output module.Be connected by the photoionization compound module respectively between the input interface of digital input module and output module and CPU and the output interface, be connected by signal condition module and A/D converter between the input interface of analog input module and CPU, be connected by D/A converter between the output interface of analog output module and CPU.In the such scheme, by setting to Programming of programmable controller and control operation unit, instrument control module and water level control module, realization is to the automatic control of boiler plant, can to coal-supplying amount, feedwater flow, steam flow and the pressure and temp etc. of boiler plant by the side parameter detect, show, warning, integrating and record.Energy savings, thermal efficiency reasonable management, assurance safety in production.The setting of frequency converter can receive the information of operation control unit and instrument control module and implement frequency conversion, motor in the boiler plant (blower motor, blower motor, fire grate) is regulated and control, thereby reach the saving electric energy, reduce energy resource consumption, save production cost, improve power factor of electric network, save local compensation, alleviate the degree of wear of moving components such as motor bearings, the purpose that prolongs its serviceable life; The setting of man machine operation interface has powerful self-learning function, adapts to the variation of load behavior automatically, need not artificial the adjustment and perfect operation indication and fault inquiry function, makes things convenient for the line service of equipment management personnel.By above-mentioned control can make boiler plant burning thoroughly, smoke evacuation oxygen content height on the low side, reduce heat loss due to exhaust gas.
In the utility model embodiment, be respectively equipped with alarm module on Programmable Logic Controller, water level control module and the frequency converter.This controller that is arranged so that of alarm module has low, extremely low, the high status alert of water level danger, glimmer respectively under the alarm condition and show corresponding water-level alarm pilot lamp, and have the output of warning to be connected with Programmable Logic Controller, the warning output point is corresponding one by one with the signal input point; When water level is in the accident condition of endangering low and high, the chain water pump control of closing boiler plant of controller.Level electrode fault defencive function, output is sent in closeall change when electrode detection makes a mistake, all water level indicator light flicker indications.
Adjusting for the boiler plant confluent is specific as follows: the boiler plant feed pump is by the electric pole type controller action, and controller is gathered the water position status of I1 ~ I5 respectively.During the control water supply pump, when water level is lower than the I3 water level, opens water pump and carry out moisturizing; When water level was higher than the I4 water level, switching off the pump stopped moisturizing.Water level is controlled in certain limit and realizes self water feeding, and so repeatedly, the boiler plant water level is controlled at that small pump opens, fluctuate between the standing water level.
Control for vapor pressure in the boiler plant mainly shows following several aspect, and the vapor pressure control of coal-fired steam boiler equipment mainly is the proportioning according to the vapor pressure control coal-supplying amount and the blow rate required.Coal-supplying amount is to control by the rotating speed of fire grate, and the blow rate required is regulated by blower power.The adjusting of vapor pressure will adopt sectional type to regulate, automatically operation drops into the back and realizes that according to the frequency of the value of feedback of pressure and the frequency converter of adjusting blower motor, blower motor and fire grate more automatically of actual value the multistage parameter burns, and guarantees safe operation of the boiler.And the parameter that sectional type is regulated will the debug phase determine according to fire box temperature, exhaust gas temperature, the combustion chamber draft of boiler plant and the parameter that is kept at man machine operation interface be provided with in preservation forever.
In order to guarantee the safety of burner hearth in the boiler plant, the air quantity of regulating the on-the-spot blower motor of control by frequency converter keeps combustion chamber draft stable, and this is the necessary condition that guarantees the boiler plant safe operation.Because the combustion chamber draft fluctuation is more frequent, therefore generally combustion chamber draft after carrying out smoothing processing, first order inertial loop to be delivered in the single loop PID regulator; The blow rate required signal that simultaneously blower motor is provided directly is added to conditioner outlet end as the feed-forward signal of draft regulator, so that blower motor can in time respond the variation of air output, the variation of negative pressure is tended towards stability.When the size of blow rate required feedforward gain K selected to make blow rate required regulating command to change, the air inducing amount was with blow rate required action simultaneously pro rata, thereby the maintenance combustion chamber draft is constant substantially.Because the existence of air blast feedforward amount only plays a part dynamically to proofread and correct so furnace pressure is regulated.The dynamic response of wind system is very fast, and stable good for making furnace pressure, the proportional band of desirable furnace pressure regulator is 100%.The variable frequency control mode is generally adopted in the control of the blow rate required and air inducing amount.
Claims (6)
1. energy conserving system is controlled in a boiler robotization, it is characterized in that: the instrument module that include Programmable Logic Controller, is connected respectively with Programmable Logic Controller, water level control module, spot sampling module, relay isolated controlling module, in-site modeling control module and the frequency converter that is connected with motor in the boiler plant, described frequency converter is connected with Programmable Logic Controller.
2. boiler robotization control energy conserving system according to claim 1 is characterized in that: output module, analog output module that described Programmable Logic Controller includes CPU, the digital input module that is connected with the CPU input end respectively, analog input module and is connected with the CPU output terminal respectively; Described water level control module is connected with Programmable Logic Controller by digital input module, relay isolated controlling module is connected with Programmable Logic Controller by output module, the spot sampling module is connected with Programmable Logic Controller by analog input module, and the in-site modeling control module is connected with Programmable Logic Controller by analog output module.
3. boiler robotization control energy conserving system according to claim 2, it is characterized in that: be connected by the photoionization compound module respectively between the input interface of described digital input module and output module and CPU and the output interface, be connected by signal condition module and A/D converter between the input interface of analog input module and CPU, be connected by D/A converter between the output interface of analog output module and CPU.
4. according to claim 1 or 2 or 3 described boiler robotization control energy conserving systems, it is characterized in that: be respectively equipped with alarm module on described Programmable Logic Controller, water level control module and the frequency converter.
5. according to claim 1 or 2 or 3 described boiler robotization control energy conserving systems, it is characterized in that: described Programmable Logic Controller also is connected with a man machine operation interface.
6. boiler robotization control energy conserving system according to claim 4, it is characterized in that: described Programmable Logic Controller also is connected with a man machine operation interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206633630U CN201909989U (en) | 2010-12-16 | 2010-12-16 | Automatically-controlled energy-saving system of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206633630U CN201909989U (en) | 2010-12-16 | 2010-12-16 | Automatically-controlled energy-saving system of boiler |
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| Publication Number | Publication Date |
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| CN201909989U true CN201909989U (en) | 2011-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206633630U Expired - Fee Related CN201909989U (en) | 2010-12-16 | 2010-12-16 | Automatically-controlled energy-saving system of boiler |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102023595A (en) * | 2010-12-16 | 2011-04-20 | 温州安信科技有限公司 | Automatic control and energy-saving system of boiler |
| CN106594700A (en) * | 2016-12-27 | 2017-04-26 | 重庆智神科技有限公司 | Boiler control system |
| CN107315427A (en) * | 2016-04-27 | 2017-11-03 | 宁波格林美孚新材料科技有限公司 | A kind of steam generator control system |
-
2010
- 2010-12-16 CN CN2010206633630U patent/CN201909989U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102023595A (en) * | 2010-12-16 | 2011-04-20 | 温州安信科技有限公司 | Automatic control and energy-saving system of boiler |
| CN107315427A (en) * | 2016-04-27 | 2017-11-03 | 宁波格林美孚新材料科技有限公司 | A kind of steam generator control system |
| CN106594700A (en) * | 2016-12-27 | 2017-04-26 | 重庆智神科技有限公司 | Boiler control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20131216 |