CN206974215U - A kind of online linear scale control combustion system - Google Patents
A kind of online linear scale control combustion system Download PDFInfo
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- CN206974215U CN206974215U CN201720558522.2U CN201720558522U CN206974215U CN 206974215 U CN206974215 U CN 206974215U CN 201720558522 U CN201720558522 U CN 201720558522U CN 206974215 U CN206974215 U CN 206974215U
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Abstract
The utility model discloses a kind of online linear scale control combustion system, control device includes ratio burner and respectively connected Gas Pipe and combustion-supporting airduct, combustion air linear actuator and air flow sensor are connected with combustion-supporting airduct, combustion gas linear actuator and gas quantitative transducer are connected with Gas Pipe, combustion gas linear actuator is electrically connected with thermocouple by temperature controller, the thermocouple determines kiln in-furnace temperature, temperature value that the temperature controller is determined by thermocouple and the difference of setting value control valve position (gas quantity) size of combustion gas linear actuator, also include a combustion air controller and be electrically connected with combustion air linear actuator and air flow sensor, gas quantitative transducer passing ratio controller is electrically connected with combustion air controller.The utility model temperature control is accurate, and air-fuel ratio control is accurate, stable, solve furnace atmosphere fluctuation problem, Simultaneous Stabilization product quality, it is thus also avoided that burner nozzle coking, carbon deposit, it is flame-out the problems such as.
Description
Technical field
The utility model belongs to Industrial Stoves combustion control equipment technical field, more particularly to a kind of online linear scale
Control combustion system.
Background technology
At present, online linear scale control combustion system is mainly used in needing the industrial furnace to the control of combustion atmosphere content
Kiln.Conventional combustion systems are used as subject matter existing for control climate：1st, the kiln of traditional control climate does not have special linear
Combustion System is equipped, and atmosphere adjustment is affected by human factors very big；2nd, conventional combustion systems equipment is used in the kiln of control climate
On easily occur burner coking, carbon deposit, it is flame-out the problems such as, make kiln atmosphere, temperature and pressure be difficult to keep dynamic equilibrium；3rd, pass
Combustion system of uniting equipment is used as the stove production unstable product quality of control climate, and qualification rate is low, can not accomplish to produce Gao Pin
The product requirement of matter.
The content of the invention
In order to solve prior art problem, the utility model provides a kind of online linear scale control combustion system, temperature
Degree, control climate are accurate, and heat engineering state is stable inside kiln, and operation is easy, and easy to use, the proportioning of combustion gas and air can be realized
Into stable linear change, solve product quality defect that atmosphere shakiness brings and the easy coking of burner, carbon deposit, flame-out etc. are asked
Topic.
Technical scheme is used by the utility model solves its technical problem：A kind of online linear scale control burning
System, including ratio burner 12 and the connected Gas Pipe 100 of difference and combustion-supporting airduct 200, in addition to：In measurable kiln
Thermocouple 5, the temperature controller 11 of temperature and output temperature signal, the temperature controller 11 electrically connect with the thermocouple 5
Connect, the temperature controller 11 is electrically connected with combustion gas linear actuator 3, and the combustion gas linear actuator 3 is installed on institute
State in Gas Pipe 100, the Gas Pipe 100 is also equipped with can detect the flow of Gas Pipe 100 and exports gas flow signal
Gas quantitative transducer 4, the gas quantitative transducer 4 is electrically connected with ratio controller 7, the ratio controller 7 and combustion-supporting air control
Instrument 6 processed is electrically connected with, and wherein ratio controller 7 is also electrically connected with combustion air linear actuator 1, and the combustion air is linearly held
Row mechanism 1 is installed on the combustion-supporting airduct 200.
Wherein：Also include can detect the combustion-supporting flow of airduct 200 and export the air flow sensor of combustion air flow signal
2, the air flow sensor 2 is installed on the combustion-supporting airduct 200, the air flow sensor 2 and the electricity of combustion air controller 6
Property connection.
Wherein：The burner 12 is additionally provided with an electrode 8, and the Gas Pipe 100 at the neighbouring burner 12 is also associated with
One gas electromagnetic valve 9, the gas electromagnetic valve 9 are electrically connected with an igniter 10, and the igniter 10 connects the electrode 8.
Wherein：The air-fuel ratio coefficient of the ratio controller 7 can set steady state value or curve values, meet difference with this
The air-fuel ratio requirement of fuel combustion process.
The beneficial effects of the utility model are：
First, the temperature control of stove is accurate, and the temperature difference is small, and heat engineering state stabilization, product quality are stable in kiln, yield rate
It is high；
Second, the present apparatus realizes the linear scale supply burner relation of combustion gas and air, and make it that combustion atmosphere is stable
It is adjustable, solve kiln atmosphere instability problem caused by combustion prosecutor formula at present, the easy coking of shower nozzle of burner, carbon deposit, flame-out etc.
Practical problem, on-line intelligence control is realized, without manually keeping an eye on, be automatically performed atmosphere conversion and control process；
3rd, the utility model Operation and Maintenance is simple, easy to use, stable；
4th, the stability of the heat engineering state of control climate kiln is increased substantially, product qualification rate greatly improves, in stove
Atmosphere can arbitrarily be set；
5th, it is widely used, is usually used in silicate product domestic ceramics, art ceramics, architectural pottery, engineering ceramics, resistance to
On the atmosphere protection kiln such as fiery material；On the industrial furnace of metal heat treatmet and Metal Melting insulation, such as all kinds of car type furnaces, strip
Stove, bell furnace, smelting furnace etc.；In the industrial production line of heating, drying, such as dry kiln, hot-blast stove, gas burning roastor etc.；It is more
On the fireproof level estimate stove of kind material, such as rectilinear fire resisting test specimen test furnace, horizontal fire resisting test specimen test furnace etc.
Deng not only meeting requirement of the production technology to atmosphere, and be greatly reduced or prevent oxidization burning loss.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of the online linear scale control combustion system of the utility model.
In figure：100- Gas Pipes；The combustion-supporting airducts of 200-；1- combustion air linear actuators；2- air flow sensors；3- combustion gas
Linear actuator；4- gas quantitative transducers；5- thermocouples；6- combustion air controllers；7- ratio controllers；8- electrodes；9- combustion gas
Magnetic valve；10- igniters；11- temperature controllers；12- burners.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe.Obviously, described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Referring to Fig. 1, the utility model provides a kind of technical scheme：
A kind of online linear scale control combustion system, including ratio burner 12 and the connected Gas Pipe of difference
100 and combustion-supporting airduct 200, in addition to thermocouple 5, temperature controller 11, combustion gas linear actuator 3, gas quantitative transducer 4, ratio
Example controller 7, combustion air controller 6 and combustion air linear actuator 1.
Wherein, the measurable kiln in-furnace temperature of thermocouple 5 and Thermocouple Temperature Signal is exported.
Temperature controller 11 is electrically connected with thermocouple 5, and temperature controller 11 can receive Thermocouple Temperature Signal and basis
The deviation of measured temperature and setting value exports combustion gas linear actuator control of valve position signal.
Combustion gas linear actuator 3 is installed on Gas Pipe 100, and combustion gas linear actuator 3 and temperature controller 11 are electrical
Connection, combustion gas linear actuator 3 can receive the combustion gas linear actuator control of valve position signal that temperature controller 11 is sent, and lead to
The valve position of combustion gas linear actuator 3 is overregulated to control the size of gas flow.
Gas quantitative transducer 4 is installed on Gas Pipe 100, and gas quantitative transducer 4 can detect the flow of Gas Pipe 100 and export combustion gas
Flow signal.
Ratio controller 7 is electrically connected with gas quantitative transducer 4, and ratio controller 7 can receive gas flow signal and will combustion
Throughput exports after being multiplied by the air-fuel ratio coefficient of its setting and sets flow signal to combustion air controller 6 as combustion air.
And ratio controller 7 is provided with the linear valve that specification is 1 cun to 4 cun.
Combustion air controller 6 is electrically connected with combustion air linear actuator 1 and ratio controller 7, combustion air control
Instrument 6 communicatively receives the combustion air setting flow signal that the ratio controller 7 is sent, and exports combustion air and linearly perform
Mechanism control of valve position signal.
Combustion air linear actuator 1 is installed on combustion-supporting airduct 200, and combustion air linear actuator 1 can receive combustion-supporting
Control of valve position signal that wind controller is sent simultaneously needs to adjust the combustion-supporting wind flow of combustion airduct 200 according to combusted proportion.
Inventor has found that the i.e. control to combustion-supporting airduct and Gas Pipe controls the completion of its flow and natural gas from automatic valve
Proportioning, and the aperture and discharge characteristic of part automatic valve (such as automatic butterfly valve) are non-linear, cause control process unstable,
Control accuracy is poor, and then influences the efficiency of combustion of natural gas.
Further, in order to monitor in real time the flow of combustion-supporting airduct 200 whether reached after overregulating it is default
Flow value, in the present embodiment, in addition to air flow sensor 2, air flow sensor 2 are installed on combustion-supporting airduct 200, air flow sensor
2 can detect the flow of combustion-supporting airduct 200 and export combustion air flow signal；Air flow sensor 2 electrically connects with combustion air controller 6
Connect, compared with combustion air controller 6 can receive combustion air flow signal and set flow signal with combustion air, and according to comparing
As a result the valve position of combustion air linear actuator 1 is adjusted.
If the combustion-supporting wind flow of the reality detected is further defeated higher than the combustion-supporting wind flow of setting, combustion air controller 6
Go out to reduce the control signal of combustion wind flow, control combustion air controller 6 reduces the flow of combustion-supporting airduct 200；If detect
For actual combustion-supporting wind flow less than the combustion-supporting wind flow of setting, then combustion air controller 6 is further exports the control for improving combustion wind flow
Signal processed, control combustion air controller 6 increase the flow of combustion-supporting airduct 200；Repeated with this, until the combustion air of reality
Combustion-supporting wind flow of the flow close or equal to setting.
In preferred embodiment of the present utility model, burner 12 is additionally provided with an electrode 8, the Gas Pipe 100 at neighbouring burner 12
A gas electromagnetic valve 9 is also associated with, the gas electromagnetic valve 9 is electrically connected with an igniter 10, the connection electrode 8 of igniter 10, point
During 10 energization work of firearm, electrode 8 is discharged, allow gas electromagnetic valve 9 to open, starting ignition operation program.
In preferred embodiment of the present utility model, the air-fuel ratio coefficient of ratio controller 7 can set steady state value or curve
Value, with this come meet the air-fuel ratio of different fuel combustion process requirement.
Specifically, the air-fuel ratio coefficient of ratio controller 7 can enter edlin and online modification, the ratio controller 7 is led
If controlling air and gas proportion, so different fuel, its combusted proportion is different, it is possible to passing ratio controller
7 set air-fuel ratio coefficient, to meet combustion needs.The air-fuel ratio coefficient of ratio controller 7 can set steady state value or
Curve values, to meet that the ratio of the combustion process of different fuel controls.Ratio controller 7 is that the gas quantitative transducer 4 received is sent
Tolerance signal, be sent into the microprocessor of the ratio controller 7, computing carried out in microprocessor, obtained tolerance signal
Air-fuel ratio coefficient is multiplied by, then is communicatively exported to combustion air controller 6, and as the setting value of combustion air volume, adjustment
The open amount of combustion air linear actuator 1, to meet air-fuel ratio.
The present embodiment controls combustion system based on above-mentioned online linear scale, additionally provides a kind of online linear ratio
Example method for controlling combustion, it is applied to the online linear scale for including ratio burner 12, Gas Pipe 100 and combustion-supporting airduct 200
Combustion system is controlled, the control method includes：Thermocouple 5 measures kiln in-furnace temperature and exports Thermocouple Temperature Signal；Temperature control
Instrument 11 processed receives Thermocouple Temperature Signal and exports combustion gas linear actuator control of valve position signal according to desired temperature；Combustion gas
Linear actuator 3 receives the combustion gas linear actuator control of valve position signal that temperature controller 11 exports and adjusts the combustion gas
The valve position of linear actuator 3, and then control gas flow；Gas quantitative transducer 4 detects the flow of Gas Pipe 100 and exports combustion gas
Flow signal；Ratio controller 7 receive gas flow signal and by gas flow be multiplied by its setting air-fuel ratio coefficient after it is defeated
Combustion air setting flow signal corresponding to going out；Combustion air controller 6 receives combustion air setting flow signal and output control is combustion-supporting
The control of valve position signal of wind linear actuator 1, and then realize linear flowrate proportioning；Combustion air linear actuator 1 is received and helped
The combustion air linear actuator control of valve position signal of the output of wind controller 6 is fired, and by adjusting combustion air linear actuator 1
Valve opening come control combustion airduct 200 combustion-supporting wind flow.
In preferred embodiment of the present utility model, in addition to using the reception combustion air of combustion air controller 6 flow signal simultaneously
Compared with flow signal being set with combustion air, and according to output combustion air of the comparative result to combustion air linear actuator 1
Flow control signal.
Further additionally provide a kind of more simplified online linear scale method for controlling combustion, its be applied to include than
The online linear scale control combustion system of example burner 12, Gas Pipe 100 and combustion-supporting airduct 200, it includes：Obtain in kiln
Temperature value；Then according to temperature value come the gas flow of regulating gas pipe 100；Obtain the gas flow of Gas Pipe 100；It will obtain
The gas flow of the Gas Pipe 100 taken obtains combustion air setting flow after being multiplied by air-fuel ratio coefficient；Set and flowed according to combustion air
Measure the combustion-supporting wind flow of the combustion-supporting airduct 200 of Signal Regulation.
In order that the flow of combustion air can reach setting value, in the present embodiment, in addition to：Obtain combustion-supporting airduct 200
Combustion-supporting wind flow；According to the combustion-supporting airduct 200 of the combustion air Flow-rate adjustment of the combustion-supporting airduct 200 of acquisition up to combustion-supporting airduct 200
Actual combustion-supporting wind flow is close or equal to combustion air setting flow.
Operation principle and process for using of the present utility model：
One temperature value of default first, and the kiln temperature signal of measurement is sent to temperature control by thermocouple 5
Instrument 11, and compared with the temperature value of setting, if the actual temperature of kiln is higher, the control of the output signal of temperature controller 11
Combustion gas linear actuator 3 turns down gas quantity, and the tolerance signal in Gas Pipe is conveyed to ratio controller 7 by gas quantitative transducer 4,
The gas quantity that ratio controller 7 receives reduces, and after being multiplied by air-fuel ratio coefficient, the combustion air volume that ratio controller 7 exports is set
Definite value necessarily reduces, and due to the reduction of combustion air volume setting value, combustion air controller 6 controls combustion air linear actuator 1 to subtract
Few combustion air valve opening, so as to reach while proportionally reduce gas quantity and combustion air volume, not only makes combustion atmosphere, temperature steady
It is fixed, and avoid burner 12 the easy coking of shower nozzle, carbon deposit and it is flame-out the problems such as.The utility model realize air and combustion gas by
The stable synchronous linear change burnt, realize air and combustion gas of proportional linearityization, so as to ensure that air-fuel ratio is burnt, fuel obtains
Utilized to sufficient, while temperature fluctuation range is small, the product quality produced is stable, and quality is high.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of online linear scale control combustion system, including ratio burner (12) and the connected Gas Pipe of difference
(100) and combustion-supporting airduct (200), it is characterised in that also include：The thermocouple of measurable kiln in-furnace temperature and output temperature signal
(5), temperature controller (11), the temperature controller (11) are electrically connected with the thermocouple (5), the temperature controller
(11) it is electrically connected with combustion gas linear actuator (3), the combustion gas linear actuator (3) is installed on the Gas Pipe
(100) on, the Gas Pipe (100) is also equipped with can detect Gas Pipe (100) flow and exports gas flow signal
Gas quantitative transducer (4), the gas quantitative transducer (4) are electrically connected with ratio controller (7), and the ratio controller (7) is with helping
Fire wind controller (6) to be electrically connected with, wherein ratio controller (7) is also electrically connected with combustion air linear actuator (1), described
Combustion air linear actuator (1) is installed on the combustion-supporting airduct (200).
2. online linear scale control combustion system according to claim 1, it is characterised in that：Also include detectable institute
State combustion-supporting airduct (200) flow and export the air flow sensor (2) of combustion air flow signal, air flow sensor (2) installation
In on the combustion-supporting airduct (200), the air flow sensor (2) is electrically connected with the combustion air controller (6).
3. online linear scale control combustion system according to claim 1, it is characterised in that：The burner (12) is also
Provided with an electrode (8), the Gas Pipe (100) at the neighbouring burner (12) place is also associated with a gas electromagnetic valve (9), the combustion
Pneumoelectric magnet valve (9) is electrically connected with an igniter (10), and the igniter (10) connects the electrode (8).
4. online linear scale control combustion system according to claim 1, it is characterised in that：The ratio controller
(7) air-fuel ratio coefficient can set steady state value or curve values, with this come meet the air-fuel ratio of different fuel combustion process will
Ask.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720558522.2U CN206974215U (en) | 2017-05-18 | 2017-05-18 | A kind of online linear scale control combustion system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720558522.2U CN206974215U (en) | 2017-05-18 | 2017-05-18 | A kind of online linear scale control combustion system |
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| CN206974215U true CN206974215U (en) | 2018-02-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091577A (en) * | 2017-05-18 | 2017-08-25 | 佛山市安然热工机电设备有限公司 | A kind of online linear scale control combustion system and its control method |
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- 2017-05-18 CN CN201720558522.2U patent/CN206974215U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091577A (en) * | 2017-05-18 | 2017-08-25 | 佛山市安然热工机电设备有限公司 | A kind of online linear scale control combustion system and its control method |
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