CN105737192B - The controller and combustion apparatus of burner - Google Patents
The controller and combustion apparatus of burner Download PDFInfo
- Publication number
- CN105737192B CN105737192B CN201610091501.4A CN201610091501A CN105737192B CN 105737192 B CN105737192 B CN 105737192B CN 201610091501 A CN201610091501 A CN 201610091501A CN 105737192 B CN105737192 B CN 105737192B
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- Prior art keywords
- burner
- controller
- signal
- microprocessor unit
- combustion
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/20—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/66—Preheating the combustion air or gas
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- 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 kind of controller of burner and combustion apparatus, belong to heat power engineering field, solve the problems, such as the electric-control system higher cost of existing combustion apparatus.The controller of the burner, including microprocessor unit, signal input part and signal output end；The microprocessor unit is single-chip microcontroller, for receiving the status signal of burner by the signal input part, control signal is issued to burner by the signal output end, making the controller of the burner has independent ability to work, working condition can be changed according to the instruction of host computer, and inquiry data needed for returning to host computer.Present invention can apply to heat source in need industrial furnace and boiler.
Description
Technical field
The present invention relates to heat power engineering fields, specifically, are related to the controller and combustion apparatus of a kind of burner.
Background technique
Existing regenerative burner device is broadly divided into symmetrical regenerative burner device and asymmetric heat storage type combustion
Equipment.
Symmetrical regenerative burner device includes the pairs of heat-storage type burner for having regenerative chamber, each heat-storage type burner
It is arranged in burner hearth sidewall etc..When the burner combustion of a side, generated burning waste gas is passed through from the burner of another party
It is discharged after heat storage, to be heated to heat storage.Simultaneously with time interval frequent exchange two of tens of seconds to several minutes
The working condition of corresponding burner, to realize burning with discharge burning waste gas alternately.In the process, burner
The combustion air of burner from the heat storage being heated by when be preheated, be achieved in higher heat recovery efficiency.
But in symmetrical regenerative burner device, since the burner of discharge burning waste gas can not be completely exhausted out combustion
The exhaust gas that the burner of burning generates, needs to open up bypass smoke pipe in the side of burner.Since burning waste gas does not flow through all
Regenerative chamber separately has part with the comparable exhaust gas of fire box temperature by bypassing smoke pipe direct emission, therefore symmetrical heat storage type combustion
The waste heat recovery rate of equipment is lower.
In contrast, the waste heat recovery rate of asymmetric regenerative burner device is higher.In asymmetric heat storage type combustion
In equipment, at least three heat-storage type burners are provided with, wherein the number of heat-storage type burner used for combustion is always than being used for
The number of the heat-storage type burner of exhaust is few.Therefore, it is needed originally in symmetrical regenerative burner device by bypassing smoke pipe
The portion of discharge can be discharged by the heat-storage type burner for exhaust having more, to be conducive to improve heat accumulating type combustion
Equipment is burnt to the waste heat recovery rate of exhaust gas.
It in existing symmetrical expression regenerative burner device and asymmetric regenerative burner device, is patrolled using programmable
Volume controller (Programmable Logic Controller, abbreviation PLC) or industrial computer carried out burner program-controlled
System.But the price of the electronic component of PLC and industrial computer is higher, therefore results in the automatically controlled of existing combustion apparatus
The higher problem of system cost.
Summary of the invention
The purpose of the present invention is to provide a kind of controller of burner and combustion apparatus, to solve existing combustion apparatus
Electric-control system higher cost the problem of.
The present invention provides a kind of controller of burner, including microprocessor unit, signal input part and signal output end；
The microprocessor unit is single-chip microcontroller, for receiving the status signal of burner by the signal input part,
Control signal is issued to burner by the signal output end, enables the controller of the burner that there is independent work
Power can change working condition according to the instruction of host computer, and inquiry data needed for returning to host computer.
Preferably, it is connected between the microprocessor unit and the signal input part by photoisolator.
Further, the controller further includes alarm unit, for the hair when abnormality or failure occurs in burner
Alarm signal out.
Preferably, the microprocessor unit is AVR single chip.
Preferably, the program in the microprocessor unit is encrypted with highest encryption level.
The present invention also provides a kind of combustion apparatus, including the multiple burners and above-mentioned controller being connected with burner hearth.
Further, each burner includes regenerative chamber, one end of the regenerative chamber by burner with it is described
The other end of burner hearth connection, the regenerative chamber is equipped with air inlet and smoke outlet；
The air inlet and combustion-supporting gas pipeline connection, the smoke outlet are connected to flue gas pipeline.
Further, being equipped with heat storage in the regenerative chamber；
The shape of the heat storage is sheet, strip, honeycomb or spherical, and the material of the heat storage is clay, Mo Lai
Stone, high alumina, corundum or silicon carbide.
Preferably, the heat storage is located at the top of the burner.
Present invention offers it is following the utility model has the advantages that burner provided by the invention controller in, using single-chip microcontroller conduct
Microprocessor unit issues control signal for receiving the status signal of burner, and to burner.So that the control of burner
Device has independent ability to work, can change working condition according to the instruction of host computer, and inquiry needed for returning to host computer
Data.PLC and industrial computer in compared with the prior art, the price of the electronic component of single-chip microcontroller is lower, about PLC's
1/10th.Therefore, the electric-control system cost of the controller of burner provided by the invention is lower, solves existing burning and sets
The problem of standby electric-control system higher cost.
Other features and advantages of the present invention will be illustrated in the following description, also, partial becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
It, below will be to required in embodiment description for the clearer technical solution illustrated in the embodiment of the present invention
Attached drawing does simple introduction:
Fig. 1 is the schematic diagram of the controller of burner provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of combustion apparatus provided in an embodiment of the present invention.
Specific embodiment
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and examples, how to apply to the present invention whereby
Technological means solves technical problem, and the realization process for reaching technical effect can fully understand and implement.It needs to illustrate
As long as not constituting conflict, each feature in each embodiment and each embodiment in the present invention can be combined with each other,
It is within the scope of the present invention to be formed by technical solution.
As shown in Figure 1, the embodiment of the present invention provides a kind of controller of burner, including microprocessor unit
(Micro Control Unit, abbreviation MCU), signal input part and signal output end.Microprocessor unit is also connected with communication
Interface can be used between the operation interface of staff and other controllers communicating.
In the present embodiment, microprocessor unit is single-chip microcontroller, preferably AVR single chip.The hardware configuration of AVR single chip is adopted
Take the trade-off strategies of 8 machines and 16 machines, i.e., inputted using local register stock pile (32 register files) and monomer high speed/
The scheme (input capture register, output comparison match register and corresponding control logic) of output.AVR single chip improves finger
It enables and executes speed (1Mips/MHz), overcome bottleneck, enhance function；Reduce the expense to peripheral equipment management again simultaneously,
Relative simplicity hardware configuration, reduces costs.Therefore, AVR single chip is in software and hardware expense, speed, performance and cost
All various aspects achieve optimization balance, are a kind of single-chip microcontrollers of high performance-price ratio.
Microprocessor unit is used to receive the status signal of burner by signal input part, to monitor the work of burner
State.Status signal generally includes air-valve switching signal, cigarette threshold switch signal, ignition flame signal, main flare up fire, combustion gas height
Low-voltage signal, air feed wind pressure signal, furnace pressure signal, multiple temperature signals, the signal that fascinates, stove door switch signal and thermocouple lifting
Signal etc..
Microprocessor unit is also used to issue control signal to burner by signal output end, realizes the control to burner
System.Control signal generally includes air-valve, cigarette valve, slow valve opening, large and small fire solenoid valve, igniter solenoid valve, ignition transformer, flue butterfly
Valve, petticoat pipe butterfly valve, thermocouple go up and down solenoid valve and air blower, air-introduced machine, cooling blower start and stop and speed signal etc..
In the controller of burner provided in an embodiment of the present invention, using AVR single chip as microprocessor unit, it is used for
The status signal of burner is received, and issues control signal to burner.So that the controller of burner has independent work
Ability can change working condition according to the instruction of host computer, and inquiry data needed for returning to host computer.Compared to existing skill
PLC and industrial computer in art, the price of the electronic component of AVR single chip is lower, and about 1/10th of PLC.Therefore,
The electric-control system cost of the controller of burner provided in an embodiment of the present invention is lower, solves the automatically controlled of existing combustion apparatus
The higher problem of system cost.
As a preferred embodiment, pass through Phototube Coupling between the microprocessor unit and signal input part in the present embodiment
Device (Optoelectronic Isolator, english abbreviation OC) connection.
Photoisolator generally consists of three parts: the transmitting of light, the reception of light and signal amplification.The electric signal of input drives
Dynamic light emitting diode (Light-Emitting Diode, abbreviation LED), is allowed to issue the light of certain wavelength, be connect by optical detector
It receives and generates photoelectric current, using being exported after being further amplified.This completes electricity-light-electricity conversions, to play defeated
The effect enter, export, being isolated.Due to being mutually isolated between photoisolator input and output, electric signal transmission has the spies such as one-way
Point, thus there is good electrical isolation capabilities and anti-interference ability.Again since the input terminal of photoisolator belongs to current mode work
The low-resistance element of work, thus there is very strong common mode inhibition capacity.So photoisolator is in long-line transmission information as eventually
End isolation element can greatly improve signal-to-noise ratio.As the interface unit of signal isolation in controller provided in an embodiment of the present invention
Part can greatly increase the reliability of controller work.
Further, the controller of burner provided in an embodiment of the present invention further includes alarm unit, for burning
Device occurs issuing alarm signal when abnormality or failure.When microprocessor unit monitors that burner operating is abnormal, alarm
Unit will show corresponding warning message to staff.The warning message that alarm unit can be shown includes: gaseous-pressure
It is excessively high, gaseous-pressure is too low, combustion air hypotony, burner stop working alarm, the excessively high alarm of temperature of charge, the excessively high police of fire box temperature
Report, air-introduced machine fault warning, blower fault alarm, the flame-out alarm of burning torch, air reversing valve do not open or close in place, flue gas changes
Do not opened or closed to valve in place, burning torch fan trouble etc..
Staff sees warning message, and after eliminating corresponding failure, " alarm can be clicked on human-computer interaction interface
Reset " button, empty the record of warning message.
As a preferred embodiment, the program in microprocessor unit is encrypted with highest encryption level.AVR single chip
After being encrypted with highest encryption level, internal processes can not be read.And for PLC, it can use various softwares and method,
The source program in PLC is read, so there are some potential safety problemss.In contrast, in the embodiment of the present invention in AVR single chip
Program can not be read, and also can not be downloaded or be compiled, therefore have higher confidentiality and safety.
The embodiment of the present invention also provides a kind of combustion apparatus, can be regenerative burner device, is also possible to non-heat accumulating type
Combustion apparatus, including the controller in the multiple burners and above-described embodiment being connected with burner hearth.
As shown in Fig. 2, the present embodiment is illustrated by taking asymmetric regenerative burner device as an example, wherein altogether there are three with
The connected heat-storage type burner 2 of burner hearth 1.Controller switches each heat-storage type burner 2 to be alternatively used for burning or for discharging fume,
And it is at any time, more than the quantity of heat-storage type burner used for combustion for the quantity of the heat-storage type burner of smoke evacuation.
In the present embodiment, each heat-storage type burner 2 includes regenerative chamber 3, and one end of regenerative chamber 3 passes through burner 4 and furnace
Thorax 1 is connected to, and the other end of regenerative chamber 3 is equipped with air inlet and smoke outlet.Burner 4 is connected to fuel gas pipeline 5, air inlet and combustion-supporting gas
Body pipeline 6 is connected to, and smoke outlet is connected to flue gas pipeline 7.It is set respectively on fuel gas pipeline 5, combustion-supporting gas pipeline 6 and flue gas pipeline 7
It is equipped with individual reversal valve 8, each reversal valve 8 is connect with controller.Combustion-supporting gas pipeline 6 and flue gas pipeline 7 are connected separately with
Flow can also be connected on air blower 9 and air-introduced machine 10, fuel gas pipeline 5 and 6 mouthfuls of combustion-supporting gas pipeline and flue gas pipeline 7
The equipment such as meter, pressure gauge, differential pressure transmitter and temperature sensor.
Further, being equipped with heat storage 11 in regenerative chamber 3, heat storage 11 is located at the top of burner 4.Work as heat storage type combustion
Device 2 is for when discharging fume, flue gas to pass through heat storage 11 from bottom to top, and dust is difficult to accumulate on heat storage 3；Work as heat-storage type burner
2 for when burning, combustion-supporting gas to pass through heat storage 11.Since the quantity ratio of the heat-storage type burner for smoke evacuation is used
It is more in the quantity of the heat-storage type burner of burning, so combustion-supporting gas passes through heat storage 11 than flue gas by the speed of heat storage 11
Speed it is high, therefore boast that sweeping deashing ability significantly increases in the embodiment of the present invention, heat storage 11 be not easy dust accumulation with it is hardened, significantly
Extend 11 cleaning cycle of heat storage and its service life.
The shape of heat storage 11 can be sheet, strip, honeycomb or spherical, it is preferably spherical in the present embodiment.Accumulation of heat
When the shape of body 11 is spherical, smoke evacuation resistance is smaller, and improves 11 bulk density of heat storage, increases heat storage capacity, with full
The requirement of the single smoke evacuation of the regenerative chamber 3 time length of foot.
The material of heat storage 11 can be clay, mullite, high alumina, corundum or silicon carbide, be preferably rigid in the present embodiment
It is beautiful.It when the material of heat storage 11 is corundum, can be used for a long time because of its erosion-resisting characteristics, amount of stored heat due to its density height
Greatly, accumulation of heat and heat release are fast due to its thermal coefficient height, and dry slag dust stratification is few due to its anti-permeability performance, capable of washing because of its intensity height
It reuses.
Include multiple heat-storage type burners and controller in regenerative burner device provided in an embodiment of the present invention, and adopts
It uses AVR single chip as the microprocessor unit of controller, for receiving the status signal of burner, and issues and control to burner
Signal processed.So that the controller of burner has independent ability to work, working condition can be changed according to the instruction of host computer,
And inquiry data needed for returning to host computer.PLC and industrial computer in compared with the prior art, the electronics of AVR single chip
The price of component is lower.Therefore, the electric-control system cost of the controller of the burner in the embodiment of the present invention is lower, solves
The problem of electric-control system higher cost of existing regenerative burner device.
While it is disclosed that embodiment content as above but described only to facilitate understanding the present invention and adopting
Embodiment is not intended to limit the invention.Any those skilled in the art to which this invention pertains are not departing from this
Under the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But scope of patent protection of the invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (7)
1. a kind of controller of burner, which is characterized in that including microprocessor unit, signal input part and signal output end；
The microprocessor unit is that single-chip microcontroller passes through for receiving the status signal of burner by the signal input part
The signal output end issues control signal to burner, and the controller of the burner is made to have independent ability to work, energy
It is enough that working condition is changed according to the instruction of host computer, and inquiry data needed for returning to host computer；
The microprocessor unit is AVR single chip；
Controller switches each burner to be alternatively used for burning or for discharging fume, and at any time, the combustion for smoke evacuation
The quantity of burner is more than the quantity of burner used for combustion；
Each burner includes regenerative chamber, and one end of regenerative chamber is connected to by burner with burner hearth, and the other end of regenerative chamber is equipped with
Air inlet and smoke outlet, burner are connected to fuel gas pipeline, air inlet and combustion-supporting gas pipeline connection, smoke outlet and flue gas pipeline
Even；
Opening on the outside of burner hearth and regenerative chamber connecting place is less than the opening of inside.
2. controller according to claim 1, which is characterized in that the microprocessor unit and the signal input part it
Between pass through photoisolator connect.
3. controller according to claim 1, which is characterized in that it further include alarm unit, it is different for occurring in burner
Alarm signal is issued when normal state or failure.
4. controller according to claim 1, which is characterized in that the program in the microprocessor unit is encrypted with highest
Rank is encrypted.
5. a kind of combustion apparatus, which is characterized in that including the multiple burners being connected with burner hearth, and as Claims 1-4 is appointed
Controller described in one.
6. combustion apparatus according to claim 5, which is characterized in that be equipped with heat storage in the regenerative chamber；
The shape of the heat storage is sheet, strip, honeycomb or spherical, and the material of the heat storage is clay, mullite, height
Aluminium, corundum or silicon carbide.
7. combustion apparatus according to claim 6, which is characterized in that the heat storage is located at the top of the burner.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610091501.4A CN105737192B (en) | 2016-02-18 | 2016-02-18 | The controller and combustion apparatus of burner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610091501.4A CN105737192B (en) | 2016-02-18 | 2016-02-18 | The controller and combustion apparatus of burner |
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| CN105737192A CN105737192A (en) | 2016-07-06 |
| CN105737192B true CN105737192B (en) | 2019-01-22 |
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Citations (4)
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| CN201251516Y (en) * | 2008-06-23 | 2009-06-03 | 宝山钢铁股份有限公司 | Performance testing platform for high-temperature regenerator |
| CN201992686U (en) * | 2011-01-14 | 2011-09-28 | 辽宁华远能源工程技术有限公司 | Integrated combustion controller for impulse burner of heat treatment furnace |
| CN202835366U (en) * | 2012-12-13 | 2013-03-27 | 彭东旭 | Novel pulse heat accumulating type combustion controller |
| CN104197732A (en) * | 2014-09-19 | 2014-12-10 | 济南大学 | Regenerative gas heating furnace control system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442409A (en) * | 2013-09-24 | 2019-03-08 | 湖南巴陵炉窑节能股份有限公司 | A kind of heat accumulating burner and its control method |
| JP2015072095A (en) * | 2013-10-03 | 2015-04-16 | アズビル株式会社 | Combustion control device |
| CN103629692B (en) * | 2013-11-26 | 2016-03-16 | 浙江工商大学 | The decentralized control method of boiler-burner |
-
2016
- 2016-02-18 CN CN201610091501.4A patent/CN105737192B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201251516Y (en) * | 2008-06-23 | 2009-06-03 | 宝山钢铁股份有限公司 | Performance testing platform for high-temperature regenerator |
| CN201992686U (en) * | 2011-01-14 | 2011-09-28 | 辽宁华远能源工程技术有限公司 | Integrated combustion controller for impulse burner of heat treatment furnace |
| CN202835366U (en) * | 2012-12-13 | 2013-03-27 | 彭东旭 | Novel pulse heat accumulating type combustion controller |
| CN104197732A (en) * | 2014-09-19 | 2014-12-10 | 济南大学 | Regenerative gas heating furnace control system |
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