CN105650675A - Combustor control system and combustion equipment - Google Patents
Combustor control system and combustion equipment Download PDFInfo
- Publication number
- CN105650675A CN105650675A CN201610090301.7A CN201610090301A CN105650675A CN 105650675 A CN105650675 A CN 105650675A CN 201610090301 A CN201610090301 A CN 201610090301A CN 105650675 A CN105650675 A CN 105650675A
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- China
- Prior art keywords
- burner
- control
- control system
- central controller
- combustor
- Prior art date
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Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 19
- 238000004891 communication Methods 0.000 claims abstract description 16
- 238000004886 process control Methods 0.000 claims abstract description 10
- 230000001172 regenerating effect Effects 0.000 claims description 18
- 230000003993 interaction Effects 0.000 claims description 10
- 230000005856 abnormality Effects 0.000 claims description 5
- 238000005338 heat storage Methods 0.000 description 36
- 238000000034 method Methods 0.000 description 11
- 239000002912 waste gas Substances 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 239000003517 fume Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000005276 aerator Methods 0.000 description 3
- 229910052593 corundum Inorganic materials 0.000 description 3
- 239000010431 corundum Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000003487 anti-permeability effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2237/00—Controlling
- F23N2237/02—Controlling two or more burners
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention discloses a combustor control system and combustion equipment, belongs to the technical field of hot working, and solves the technical problem of easy generation of faults due to excessive operand in a traditional controller. The combustor control system comprises a central control unit and multiple combustor controllers; each combustor controller is used for performing the process control for one combustor; the central control unit is used for performing the state control for every combustor controller and receiving a working state of every combustor controller; the combustor controllers have independent working capacity; and the central control unit can change working states of the combustors by only needing to distribute corresponding instructions to the combustor controllers through communication interfaces. The combustor control system can be applied to industrial furnaces and boilers needing heat sources.
Description
Technical field
The present invention relates to heat power engineering field, specifically, relate to control system and the combustion apparatus of a kind of burner.
Background technology
Existing regenerative burner device is broadly divided into symmetrical expression regenerative burner device and asymmetric regenerative burner device.
Symmetrical expression regenerative burner device includes the paired heat-storage type burner possessing regenerator, and each heat-storage type burner is arranged on burner hearth sidewall etc. When the burner combustion of a side, produced burning waste gas is discharged from the burner of the opposing party through heat storage, thus heat storage is heated. Simultaneously with the duty of two corresponding burners of interval frequent exchange of tens of seconds to several minutes, to realize burning and to discharge hocketing of burning waste gas. In the process, the combustion air of the burner of burner from the heat storage being heated by time be preheated, be achieved in higher heat recovery efficiency.
But, in symmetrical expression regenerative burner device, the burner owing to discharging burning waste gas cannot be completely exhausted out the waste gas that the burner of burning produces, it is necessary to the side at burner offers bypass smoke pipe. Owing to burning waste gas does not all flow through regenerator, separately having the waste gas that part is suitable with fire box temperature directly to discharge by bypassing smoke pipe, therefore the waste heat recovery rate of symmetrical expression regenerative burner device is relatively low.
By contrast, the waste heat recovery rate of asymmetric regenerative burner device is higher. In asymmetric regenerative burner device, being provided with at least three heat-storage type burner, wherein the number of the heat-storage type burner for burning is always few than the number of the heat-storage type burner for aerofluxus. Therefore, originally requiring over the portion of bypass smoke pipe discharge in symmetrical expression regenerative burner device, the heat-storage type burner for aerofluxus that can pass through to have more is discharged, thus being conducive to improving the regenerative burner device waste heat recovery rate to waste gas.
In existing symmetrical expression regenerative burner device and asymmetric regenerative burner device, it is all adopt one or several programmable logic controller (PLC) (ProgrammableLogicController, be called for short PLC) or an industrial computer as controller, by the various input/output signal cables arranged between switch board and burner, all of burner is carried out process control, cause that the number of cables that switch board is connected with field apparatus is many, PLC operand big, and be susceptible to the technical problem of fault.
Summary of the invention
It is an object of the invention to provide the control system of a kind of burner and combustion apparatus, to solve, the number of cables that existing switch board is connected with field apparatus is many, PLC operand big, and is susceptible to the technical problem of fault.
The present invention provides the control system of a kind of burner, including a central controller and multiple burner control;
Each described burner control is for carrying out process control to a burner;
Described central controller for carrying out state control to each described burner control, and receives the duty of each described burner control;
All of burner control all has independent ability to work, and central controller only need to issue corresponding instruction to burner control by communication interface, can change the duty of burner.
Preferably, described burner control includes microprocessor unit, signal input part and signal output part;
Described microprocessor unit, for being received the status signal of burner by described signal input part, sends control signal by described signal output part to burner.
Further, described burner control also includes communication interface, is used for and carries out communication between described central controller.
Preferably, between described central controller and any one burner control, connected by a feed cable and a communication cable.
Preferably, it is connected by photoisolator between described microprocessor unit with described signal input part.
Further, described burner control also includes alarm unit, sends alarm signal during for abnormality or fault occur at burner.
Further, this control system also includes the human-computer interaction interface that is connected with described central controller;
Described human-computer interaction interface, for showing the duty of each described burner control, is additionally operable to receive control instruction.
The present invention also provides for a kind of combustion apparatus, including the multiple burners being connected with burner hearth, and above-mentioned control system.
Preferably, described combustion apparatus is asymmetric regenerative burner device.
Present invention offers following beneficial effect: in the control system of burner provided by the invention, utilizing a burner control that one burner is individually carried out process control, an all of process control of burner completes voluntarily by a burner control. Further, central controller each burner control carried out state control, and receive the duty of each burner control. All of burner control all has independent ability to work, and central controller only need to issue corresponding instruction to burner control by communication interface, can change the duty of burner. Therefore, in technical scheme provided by the invention, the method adopting zonal control, centralized management, operand is made to disperse, reduce the operand of each burner control, and greatly reducing number of cables, thus reducing the probability broken down, also simplify the internal processes of burner control and central controller.
Other features and advantages of the present invention will be set forth in the following description, and, becoming apparent from description of part, or understand by implementing the present invention. The purpose of the present invention and other advantages can be realized by structure specifically noted in description, claims and accompanying drawing and be obtained.
Accompanying drawing explanation
For the technical scheme in the clearer explanation embodiment of the present invention, below required accompanying drawing during embodiment is described is done simple introduction:
Fig. 1 is the schematic diagram of the control system of the burner that the embodiment of the present invention provides;
Fig. 2 is the schematic diagram of the burner control in the embodiment of the present invention;
Fig. 3 is the schematic diagram of the combustion apparatus that the embodiment of the present invention provides.
Detailed description of the invention
Describing embodiments of the present invention in detail below with reference to drawings and Examples, to the present invention, how application technology means solve technical problem whereby, and the process that realizes reaching technique effect can fully understand and implement according to this. As long as it should be noted that do not constitute conflict, each embodiment in the present invention and each feature in each embodiment can be combined with each other, and the technical scheme formed is all within protection scope of the present invention.
The embodiment of the present invention provides the control system of a kind of burner, can be used for, in combustion apparatus, being particularly suited for regenerative burner device. As it is shown in figure 1, this control system includes a central controller and multiple burner control.
Each burner control is for carrying out process control to a burner. Burner can be burnt according to the instruction of central controller by burner control when not needing external intervention, accumulation of heat, purging, test and stopping control. If occurring abnormality or fault in work process, burner control can be automatically stopped work, and transmits DTC to central controller.
Central controller may be disposed in long-range control chamber, for each burner control carries out state control, and receives the duty of each burner control. All of burner control all has independent ability to work, and central controller only need to issue corresponding instruction to burner control by communication interface, can change the duty of burner.
Further, this control system also includes the human-computer interaction interface being connected with central controller, and human-computer interaction interface can show the duty of each burner control. Specifically, central controller according to the data that each burner control is uploaded be analyzed process after, human-computer interaction interface shows duty and the defect content of each burner. Additionally, human-computer interaction interface can also receive the control instruction that staff sends, all burners are sent burning, accumulation of heat, purging in real time, test and cease and desist order by central controller according to control instruction.
In the present embodiment, between central controller and any one burner control, connected by a feed cable and communication cable, namely the central controller in the embodiment of the present invention with have only between each burner control be connected two cables.
In prior art, each input point and output point between controller and burner are required for a cable. Wherein, input signal includes air-valve switching signal, cigarette threshold switch signal, ignition flame signal, main flare up fire, combustion gas high-low pressure signal, air feed wind pressure signal, furnace pressure signal, multiple temperature signal, the signal that fascinates, stove door switch signal and thermocouple lifting signal etc., output signal includes air-valve, cigarette valve, slow valve opening, large and small fire electromagnetic valve, igniter solenoid valve, ignition transformer, flue butterfly valve, petticoat pipe butterfly valve, thermocouple lifting electromagnetic valve and aerator, air-introduced machine, cooling blower start and stop and rate signal etc., and on-site cable is up to tens of.
By contrast, having only to be connected two cables between the present embodiment medium-long range control chamber and scene, lower in cost, the set-up time also is able to significantly shorten, and installation process is also simpler such that it is able to reduce the risk broken down.
As in figure 2 it is shown, the burner control in the embodiment of the present invention includes microprocessor unit (MicroControlUnit is called for short MCU), signal input part and signal output part.
Microprocessor unit for receiving the status signal of burner by signal input part, to monitor the duty of burner. Microprocessor unit is additionally operable to send control signal by signal output part to burner, it is achieved the control to burner.
As a preferred version, connected by photoisolator (OptoelectronicIsolator, english abbreviation is OC) between microprocessor unit and the signal input part in the present embodiment.
Photoisolator is generally made up of three parts: the transmitting of light, the reception of light and signal amplify. The signal of telecommunication driven for emitting lights diode (Light-EmittingDiode is called for short LED) of input, so as to send the light of certain wavelength, is received by photo-detector and produces photoelectric current, then through output after amplifying further. This completes the conversion of electric light electricity, thus playing the effect of input, output, isolation. Owing to being mutually isolated between photoisolator input and output, signal of telecommunication transmission has the features such as unipolarity, thus has good electrical isolation capabilities and capacity of resisting disturbance. Again owing to the input of photoisolator belongs to the low resistance element of current mode work, thus there is very strong common mode inhibition capacity. So, photoisolator isolates element as terminal in Long line transmission information can be greatly improved signal to noise ratio. As the interface device of signal isolation in the controller that the embodiment of the present invention provides, it is possible to be greatly increased the reliability of controller work.
Further, burner control also includes communication interface, is used for and carries out communication between central controller. Burner control is in whole work process, and keeps continual communication between central controller, receives the instruction of central controller, and uploads the state of the duty of oneself, DTC and each input and output.
Further, burner control also includes alarm unit, sends alarm signal during for occurring abnormality or fault in the course of the work at burner. When microprocessor unit monitors burner operating exception, alarm unit will send corresponding warning message to central controller. Central controller can show warning message by human-computer interaction interface, including: gaseous-pressure is too high, gaseous-pressure is too low, flame-out warnings of combustion air hypotony, burner, the too high alarm of temperature of charge, the too high alarm of fire box temperature, air-introduced machine fault warning, aerator overloading alarming, the flame-out warning of burning torch, air reversing valve open or close do not put in place, fume reversing valve open or close do not put in place, burning torch blower fan overload etc.
In the control system of the burner that the embodiment of the present invention provides, utilizing a burner control that one burner is individually carried out process control, an all of process control of burner completes voluntarily by a burner control. Further, central controller each burner control carried out state control, and receive the duty of each burner control. All of burner control all has independent ability to work, and central controller only need to issue corresponding instruction to burner control by communication interface, can change the duty of burner. Therefore, in the embodiment of the present invention, the method adopting zonal control, centralized management, operand is made to disperse, reduce the operand of each burner control, and greatly reducing number of cables, thus reducing the probability broken down, also simplify the internal processes of burner control and central controller. Further, owing to the autonomy of burner control is high, central controller only needs to issue order and can realize controlling, and therefore the programming of central controller and each burner control is also simpler.
It addition, in the embodiment of the present invention, when abnormality or fault occurs in a burner, burner control can individually stop the work of this burner, and other burners can normal operation.In prior art, when a burner breaks down, it is necessary to stop, so the work of burner, just to restart work after repairing fault, production task causing bigger delay. By contrast, the embodiment of the present invention is capable of the burner individually stopping breaking down, and does not affect the normal operation of other burners such that it is able to ensure that production task comparatively performs normally.
The embodiment of the present invention also provides for a kind of combustion apparatus, it is possible to be regenerative burner device, it is also possible to be non-regenerative burner device, including the multiple burners being connected with burner hearth, and the control system that above-described embodiment provides.
As it is shown on figure 3, the present embodiment illustrates for asymmetric regenerative burner device, wherein have three heat-storage type burners 2 being connected with burner hearth 1. Each heat-storage type burner 2 is individually carried out process control by a burner control, and each burner control is connected with the central controller in remote equipment case by cable.
Each burner control is carried out state control by central controller, with switch each heat-storage type burner 2 be alternatively used for burning or for discharging fume, and at any time, the quantity of the heat-storage type burner for discharging fume is more than the quantity of the heat-storage type burner for burning. Meanwhile, central controller also receives the duty of each burner control, and the data uploaded according to each burner control show duty and the defect content of each burner after being analyzed processing on human-computer interaction interface.
In the present embodiment, each heat-storage type burner 2 all includes regenerator 3, and one end of regenerator 3 is connected with burner hearth 1 by burner 4, and the other end of regenerator 3 is provided with air inlet and exhaust opening. Burner 4 is connected to fuel gas pipeline 5, and air inlet connects with combustion-supporting gas pipeline 6, and exhaust opening connects with flue gas pipeline 7. Being respectively arranged with independent reversal valve 8 on fuel gas pipeline 5, combustion-supporting gas pipeline 6 and flue gas pipeline 7, each reversal valve 8 is connected with controller. Combustion-supporting gas pipeline 6 and flue gas pipeline 7 are connected on aerator 9 and air-introduced machine 10, fuel gas pipeline 5 and combustion-supporting gas pipeline 6 mouthfuls and flue gas pipeline 7 can also be connected to the equipment such as effusion meter, Pressure gauge, differential pressure transmitter and temperature sensor.
Further, being provided with heat storage 11 in regenerator 3, heat storage 11 is positioned at the top of burner 4. When heat-storage type burner 2 is used for discharging fume, flue gas is from bottom to top by heat storage 11, and dust is difficult to accumulate on heat storage 3; When heat-storage type burner 2 is used for burning, combustion-supporting gas passes through heat storage 11. Owing to the quantity of the heat-storage type burner for discharging fume is more than the quantity of the heat-storage type burner for burning, so combustion-supporting gas is higher by the speed of heat storage 11 than flue gas by the speed of heat storage 11, therefore the embodiment of the present invention boasting, sweeping deashing ability is obviously enhanced, heat storage 11 not easily laying dust with harden, significantly extend heat storage 11 cleaning cycle and service life thereof.
The shape of heat storage 11 can be lamellar, strip, cellular or spherical, preferably spherical in the present embodiment. When being shaped as spherical of heat storage 11, smoke evacuation resistance is less, and improves heat storage 11 bulk density, increases heat storage capacity, discharges fume the requirement of time length meeting single regenerator 3.
The material of heat storage 11 can be clay, mullite, high alumina, corundum or carborundum, is preferably corundum in the present embodiment. When the material of heat storage 11 is corundum, can using for a long time because of its erosion-resisting characteristics, because its density is high, amount of stored heat is big, and because its heat conductivity is high, accumulation of heat is fast with heat release, and because of its anti-permeability performance, dry slag dust stratification is few, capable of washing because its intensity is high reuses.
The control system that the combustion apparatus that the embodiment of the present invention provides provides with above-described embodiment has identical technical characteristic, so also can solve identical technical problem, reaches identical technique effect.
It should be noted that, the embodiment of the present invention utilizes this control system control three heat-storage type burners in a combustion apparatus. In other embodiments, this control system can also control each heat-storage type burner in multiple combustion apparatus simultaneously.
While it is disclosed that embodiment as above, but described content is only to facilitate the embodiment understanding the present invention and adopt, is not limited to the present invention. Technical staff in any the technical field of the invention; under the premise without departing from spirit and scope disclosed in this invention; any amendment and change can be done in the formal and details implemented; but the scope of patent protection of the present invention, still must be as the criterion with the scope that appending claims defines.
Claims (9)
1. the control system of a burner, it is characterised in that include a central controller and multiple burner control;
Each described burner control is for carrying out process control to a burner;
Described central controller for carrying out state control to each described burner control, and receives the duty of each described burner control;
All of burner control all has independent ability to work, and central controller only need to issue corresponding instruction to burner control by communication interface, can change the duty of burner.
2. control system according to claim 1, it is characterised in that described burner control includes microprocessor unit, signal input part and signal output part;
Described microprocessor unit receives the status signal of burner by described signal input part, sends control signal by described signal output part to burner.
3. control system according to claim 2, it is characterised in that described burner control also includes communication interface, is used for and carries out communication between described central controller.
4. control system according to claim 1, it is characterised in that between described central controller and any one burner control, is connected by a feed cable and a communication cable.
5. control system according to claim 2, it is characterised in that be connected by photoisolator between described microprocessor unit with described signal input part.
6. control system according to claim 2, it is characterised in that described burner control also includes alarm unit, sends alarm signal during for abnormality or fault occur at burner.
7. control system according to claim 1, it is characterised in that also include the human-computer interaction interface being connected with described central controller;
Described human-computer interaction interface, for showing the duty of each described burner control, is additionally operable to receive control instruction.
8. a combustion apparatus, it is characterised in that include the multiple burners being connected with burner hearth and the control system as described in any one of claim 1 to 7.
9. combustion apparatus according to claim 8, it is characterised in that described combustion apparatus is asymmetric regenerative burner device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610090301.7A CN105650675B (en) | 2016-02-18 | 2016-02-18 | The control system and combustion apparatus of burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610090301.7A CN105650675B (en) | 2016-02-18 | 2016-02-18 | The control system and combustion apparatus of burner |
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| Publication Number | Publication Date |
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| CN105650675A true CN105650675A (en) | 2016-06-08 |
| CN105650675B CN105650675B (en) | 2019-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610090301.7A Active CN105650675B (en) | 2016-02-18 | 2016-02-18 | The control system and combustion apparatus of burner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106152171A (en) * | 2016-08-16 | 2016-11-23 | 南京英达公路养护车制造有限公司 | Burner operation control system |
| CN110686273A (en) * | 2019-10-18 | 2020-01-14 | 浙江力聚热水机有限公司 | Multi-gun boiler control system |
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| CN101025270A (en) * | 2005-11-30 | 2007-08-29 | 通用电气公司 | System, method, and article of manufacture for adjusting temperature levels at predetermined locations in a boiler system |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105650675B (en) | 2019-01-22 |
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