CN106681392A - Method and device for controlling temperatures of pyrolysis furnaces - Google Patents
Method and device for controlling temperatures of pyrolysis furnaces Download PDFInfo
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- CN106681392A CN106681392A CN201611094105.3A CN201611094105A CN106681392A CN 106681392 A CN106681392 A CN 106681392A CN 201611094105 A CN201611094105 A CN 201611094105A CN 106681392 A CN106681392 A CN 106681392A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
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- Oil, Petroleum & Natural Gas (AREA)
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- Automation & Control Theory (AREA)
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- Organic Chemistry (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention discloses a method and a device for controlling the temperatures of pyrolysis furnaces. The method includes steps of acquiring the current temperatures of temperature fields; carrying out proportion, differentiation and integration control according to the current temperatures of the temperature fields and target temperatures so as to determine replacement values of radiant tubes; determining target turn-off radiant tubes from radiant tube databases according to the replacement values of the radiant tubes, and starting new radiant tubes for replacing the target turn-off radiant tubes. The method and the device have the advantages that the quantity of the turn-off radiant tubes can be dynamically controlled by the aid of the method, accordingly, influence of excessively high temperatures on the service lives of the radiant tubes can be prevented, the control flexibility can be improved, and the service lives can be prolonged; the reliability of the pyrolysis furnaces can be effectively guaranteed, and accordingly service requirements can be effectively met.
Description
Technical field
The present invention relates to chemical technology field, the temprature control method and device of more particularly to a kind of pyrolysis oven.
Background technology
At present, fast pyrogenation can make carbon containing macromolecule that scission of link reaction occurs rapidly, so as to suppress the secondary of thermal decomposition product
Pyrolytic reaction and cross-linking reaction, not only reduce combustion gas and the semicoke product in pyrolytic process, and improve tar yield.Heat accumulating type
Fast pyrogenation stove takes heat accumulation type radiant tube that the fast pyrogenation to carbonaceous organic material is realized as heating source.Wherein, heat accumulating type is fast
The pyrolysis zone of fast pyrolysis oven is made up of multilayer heat accumulation type radiant tube, and is in be spaced apart in furnace body short transverse, every layer
Radiant tube has multiple, and horizontally spaced distribution is equal such that it is able to form one or more according to the requirement of different technique
Even temperature field.
In correlation technique, for homogeneous temperature field be generally formed by adjust subregion gas control valve aperture size manually
To adjust in-furnace temperature, while limiting the lower bound high of single radiant tube temperature, prevent radiant tube temperature too low or too high, burn out spoke
Penetrate pipe and cause the uneven method of temperature field in furnace to realize one or more uniform temperature fields.
However, in actual moving process, one or more homogeneous temperature fields to reaching accurately preferred temperature in stove
Requirement be relatively difficult to realize, relative homogeneous temperature field, and single radiation are only realized in sizable temperature range
The serious too high phenomenon of pipe temperature is also to happen occasionally.Therefore actual Control for Kiln Temperature is not well positioned to meet technological requirement, and
Long-term serious too high its service life of influence of radiant tube temperature, has much room for improvement.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.
Therefore, it is an object of the present invention to propose a kind of temprature control method of pyrolysis oven, the method can be improved
The flexibility of control, increases the service life.
It is another object of the present invention to propose a kind of temperature control equipment of pyrolysis oven.
To reach above-mentioned purpose, one aspect of the present invention embodiment proposes a kind of temprature control method of pyrolysis oven, including
Following steps：The Current Temperatures of collecting temperature；Current Temperatures and target temperature according to the temperature field carry out ratio, micro-
Point, integration control, to determine radiant tube replacement values；Determine that target is closed from radiant tube database according to the radiant tube replacement values
Disconnected radiant tube, and open the new radiant tube replacement target shut-off radiant tube.
The temprature control method of the pyrolysis oven of the embodiment of the present invention, can be according to the Current Temperatures in temperature field and target temperature
Determine radiant tube replacement values, so that opening new radiant tube replaces target shut-off radiant tube, realize the radiation of dynamic control shut-off
The purpose of pipe number, and then it is always ensured that the several radiant tubes of temperature highest are closed, it is to avoid temperature is too high to influence making for radiant tube
With the life-span, while being easily achieved uniform temperature field, the requirement of technique is better adapted to, improve the flexibility of control, extension makes
With the life-span, effectively ensure the reliability of pyrolysis oven, preferably meet use demand, it is simple easily to realize.
Further, in one embodiment of the invention, the radiant tube database is obtained in the following manner：According to
The present position of each radiant tube of multiple radiant tubes and Current Temperatures obtain prompt radiation pipe database in the temperature field；It is right
The Current Temperatures of each radiant tube are ranked up in the prompt radiation pipe database, to obtain the radiant tube database.
Further, in one embodiment of the invention, the Current Temperatures in the temperature field are gathered according to collection period.
Alternatively, in one embodiment of the invention, the collection period can be the radiation in each temperature field
Preset Time after pipe commutation.
Alternatively, in one embodiment of the invention, the temperature field can be multiple.
To reach above-mentioned purpose, another aspect of the present invention embodiment proposes a kind of temperature control equipment of pyrolysis oven, adopts
With the aforedescribed process, wherein, device includes：Acquisition module, for the Current Temperatures of collecting temperature；Determining module, for root
Ratio, differential, integration control are carried out according to the Current Temperatures and target temperature in the temperature field, to determine radiant tube replacement values；Control
Molding block, for determining that target turns off radiant tube from radiant tube database according to the radiant tube replacement values, and opens new
Radiant tube replaces the target shut-off radiant tube.
The temperature control equipment of the pyrolysis oven of the embodiment of the present invention, can be according to the Current Temperatures in temperature field and target temperature
Determine radiant tube replacement values, so that opening new radiant tube replaces target shut-off radiant tube, realize the radiation of dynamic control shut-off
The purpose of pipe number, and then it is always ensured that the several radiant tubes of temperature highest are closed, it is to avoid temperature is too high to influence making for radiant tube
With the life-span, while being easily achieved uniform temperature field, the requirement of technique is better adapted to, improve the flexibility of control, extension makes
With the life-span, effectively ensure the reliability of pyrolysis oven, preferably meet use demand, it is simple easily to realize.
Further, in one embodiment of the invention, also include：Acquisition module, for obtaining the radiant tube number
According to storehouse, wherein, the radiant tube database is obtained in the following manner：According to each spoke of multiple radiant tubes in the temperature field
The present position and Current Temperatures for penetrating pipe obtain prompt radiation pipe database；To each radiation in the prompt radiation pipe database
The Current Temperatures of pipe are ranked up, to obtain the radiant tube database.
Further, in one embodiment of the invention, the acquisition module is additionally operable to gather institute according to collection period
State the Current Temperatures in temperature field.
Alternatively, in one embodiment of the invention, the collection period is that the radiant tube in each temperature field is changed
Preset Time backward.
Alternatively, in one embodiment of the invention, the temperature field can be multiple.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by practice of the invention.
Brief description of the drawings
The above-mentioned and/or additional aspect of the present invention and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and be readily appreciated that, wherein：
Fig. 1 is the flow chart of the temprature control method of the pyrolysis oven according to the embodiment of the present invention；
Fig. 2 is the flow chart of the temprature control method of the pyrolysis oven according to one embodiment of the invention；
Fig. 3 is the structural representation of the temperature control equipment of the pyrolysis oven according to the embodiment of the present invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, it is intended to for explaining the present invention, and be not considered as limiting the invention.
The temprature control method and device of the pyrolysis oven of proposition according to embodiments of the present invention are described with reference to the accompanying drawings, first
The temprature control method of the pyrolysis oven of proposition according to embodiments of the present invention is described with reference to the accompanying drawings.
Fig. 1 is the flow chart of the temprature control method of the pyrolysis oven of the embodiment of the present invention.
As shown in figure 1, the temprature control method of the pyrolysis oven is comprised the following steps：
In step S101, the Current Temperatures of collecting temperature.
The mode of the Current Temperatures of collecting temperature has many kinds, for example, detect Current Temperatures by temperature sensor,
This is not specifically limited.
Further, in one embodiment of the invention, according to the Current Temperatures of collection period collecting temperature.It is optional
Ground, in one embodiment of the invention, collection period can be the Preset Time after the radiant tube commutation in each temperature field.Need
It is noted that Preset Time can be configured according to actual conditions, for example, the time can be adjusted according to technological requirement.
It is understood that the value moment of collection period should avoid the moment that radiant tube will commutate and just commutate,
Such as the value moment can be scheduled on 20 second moment after the radiant tube completes the last commutation action, to avoid control from radiating
The normal switching action of the process upset radiant tube commutation of pipe shut-off number.
In step s 102, the Current Temperatures and target temperature according to temperature field carry out ratio, differential, integration control, with
Determine radiant tube replacement values.
It is understood that radiant tube replacement values are the radiant tube number of control shut-off, can be by preceding temperature and mesh
Mark temperature carries out PID (proportion, integral, derivative, ratio, integration, derivative) computing and obtains (to enter below
Row is described in detail), so as to be always ensured that the several radiant tubes of temperature highest are closed, it is to avoid the use of the too high influence radiant tube of temperature
Life-span.
In step s 103, determine that target turns off radiant tube from radiant tube database according to radiant tube replacement values, and open
The radiant tube of Qi Xin replaces target shut-off radiant tube.
It should be noted that the form of radiant tube data there can be many kinds, citing description is will be made below.Alternatively,
In one embodiment of the invention, temperature field can be multiple, and one is similar with multiple implementations, to reduce redundancy,
This is not described in detail.
Wherein, in one embodiment of the invention, radiant tube database is obtained in the following manner：According in temperature field
The present position of each radiant tube of multiple radiant tubes and Current Temperatures obtain prompt radiation pipe database；To prompt radiation pipe number
It is ranked up according to the Current Temperatures of each radiant tube in storehouse, to obtain radiant tube database.
For example, it is entitled that heat accumulation type radiant tube is defined firstTo should the actual temperature of radiant tube beIts
Middle x=1,2,3 ..., m；yx=1,2,3 ..., n.X is fast pyrogenation stove radiant tube from top to bottom in furnace body short transverse
The number of plies, yxIt is the x layers of number of radiant tube.For the body of heater for determining, the known x of correspondence then has the y values of determination, i.e., all spokes
Penetrate the Guan Youyi title of determination.For example,It is the 2nd layer of the 3rd radiant tube from top to bottom,It is the 2nd layer the 3rd from top to bottom
The temperature of individual radiant tube.
By taking 3 homogeneous temperature fields as an example, for the fast pyrogenation stove for determining, radiant tube the distribution number of plies and every layer of number one
It is fixed, but the number of plies of following setting and every layer of radiant tube number are not limited to, it is only illustrative.Specifically, x=12 is provided with, from
Upper and lower every layer of radiant tube number y1=8, y2=6, y3=8, y4=6, y5=8, y6=6, y7=8, y8=6, y9=8, y10=6,
y11=8, y12=6.If the radiant tube of x=1,2,3,4 forms 1 area temperature field, the radiant tube of x=5,6,7,8 forms 2 area's temperature
, the radiant tube of x=9,10,11,12 forms 3 area temperature fields, and the corresponding Current Temperatures in three regions are T1、T2、T3, and three
The target temperature in area is respectively Tq1、Tq2、Tq3。
And then by taking 1 area temperature field temperature control as an example, the radiant tube in 1st area Temperature valueDeposited into one-dimension array P [28] by fixed order
In, and then by the size order of array interior element numerical value, it is ascending to be arranged, finally in storage such as new array Q [28], obtain
To radiant tube database.
Further, as shown in Fig. 2 target temperature such as Tq1With Current Temperatures T1PID controller is introduced, sets suitable
Ratio, integration and micro- gradation parameter.If PID output valves are Tout, the output area for limiting PID controller is NL1~NH1, wherein
NL1To need the radiant tube number (extremely small is 1) opened, N when 1st area is according to technological requirement minimum loadH1For 1st area will according to technique
Seeking busy hour needs the radiant tube number opened (to be 1 area radiant tube total number N to the maximumtotal1)。
Further, it is ensured that PID controller is calculated and exports T in real timeout1Value.Per t seconds, a T is takenout1Value, and to the value
Rounded up, be as a result stored in T 'out1In, that is, obtain radiant tube replacement values.Wherein, t is radiant tube commutation cycle, T 'out1For
NL1~NH1Between a natural number.If the number of dynamic shut-off radiant tube is N1, make N1=Ntotal1- T 'out1.According to N1Value
Size, in array Q [28], Q [28-N are taken out successively1]~Q [27] this N1Individual element, so as to according to this N1Individual element can be with
Determine their corresponding positions in array P [28], and then the descending N of all temperature values in 1st area can be found out1Individual radiation
PipeFinally turn off corresponding N1Individual radiant tube.Wait next t seconds, according to the N for calculating again1Value is corresponding to turn off
Radiant tube.In brief, calculated by PID, temperature N from high to low in 1st area of shut-off1Individual radiant tube.
It should be noted that as shown in Fig. 2 round (Tout1) implication be to Tout1Rounded up.
Have a specific embodiment of the invention, fast pyrogenation stove by the PLC of Siemens CPU414-2DP and
WinCC is controlled, it is considered to the complexity of PLC or WinCC programmings and real-time operation, and reduces the method as far as possible to original control
System processed is independent, the normal, influence of stable operation, can be serviced by OPC by LabView softwares and PLC
(Programmable Logic Controller, programmable logic controller (PLC)) carries out data exchange realization.
In an embodiment of the present invention, fast pyrogenation stove one has 24 layers from top to bottom, is divided into 4 areas, i.e., every 6 layers is 1
Individual area.Ground floor is 3 radiant tubes, and every layer of radiant tube number is alternately arranged for 3 or 2.Therefore, an area has 15
Radiant tube.Illustrated with 2 area temperature field temperature controls, the control method in other areas is the same.
First, the variable of the Boolean type of definition shut-off correspondence radiant tube isWherein x=1,2,
3、…、m；yx=1,2,3 ..., n.X is fast pyrogenation stove number of plies of radiant tube from top to bottom in furnace body short transverse,
yxIt is the x layers of number of radiant tube.A newly-built data block DB100, sets up 15 BOOL within the data block in PLC program
The variable of type
Connected respectively at 15 radiant tube shut-offs of 2 area radiant tubes shut-off control subprograms in PLC ladder diagram control programs one it is normally opened
Contact, 15 variables of BOOL types in corresponding data block DB100.
The equipment actual PLC of correspondence is set up in the NI OPC Servers of LabView, 15,2nd area spoke is set up under equipment
Penetrate pipe correspondence shut-off variableSet up 15,2nd area radiant tube floating type temperature variable2 in correspondence PLC program DB blocks
The radiant tube temperature value in area；Set up 15,2nd area radiant tube floating type furnace temperature temperature variable t2And t '2, wherein, T2=(t2+t’2)/
2；Set up 15,2nd area radiant tube commutation sign BOOL type variablesThe radiant tube A in the areas of correspondence PLC program DB Kuai Zhong 2
Side gas cut off valve controlled output sign and B sides gas cut off valve controlled output sign.X be fast pyrogenation stove along furnace body highly
The number of plies of radiant tube, y from top to bottom on directionxIt is the x layers of number of radiant tube.Wherein x=7,8,9,10,11,12, when x=7,
9th, 11 when, yx=3, when x=8,10,12, yx=2.
Then Tq2And T2PID controller 2 is introduced, PID calculates output Tout2, and then obtain T 'out2.Wherein according to reality
2≤T ' of technological requirementout2≤13.It follows that area's radiant tube thermic load has affluence for technological requirement temperature, at least need
Dynamically to ensure that 2 radiant tubes are closed modes.
Make N2=Ntotal2- T 'out2, wherein Ntotal2It is 15.According to N2Size, by array Q [15], find out Q [15-N2]
~Q [14] this N2Individual element, it is possible to determine their corresponding positions in array P [15], and then can find out in 2nd area and own
The descending N of temperature value2Individual radiant tube
Further according to correspondence radiant tubeCurrency determines radiant tube commutation states.Only whenWithIts
In variable be True, and maintain 20 seconds moment of (adjustable according to technique) of the state, perform the action for turning off the radiant tube.
Give correspondence radiant tubeVariableIt is entered as Fasle, you can the corresponding radiant tube of shut-off.
The temprature control method of pyrolysis oven according to embodiments of the present invention, can be according to the Current Temperatures in temperature field and target
Temperature determines radiant tube replacement values, so that opening new radiant tube replaces target shut-off radiant tube, realizes dynamic control shut-off
The purpose of radiant tube number, and then it is always ensured that the several radiant tubes of temperature highest are closed, it is to avoid the too high influence radiant tube of temperature
Service life, while be easily achieved uniform temperature field, better adapt to the requirement of technique, improve the flexibility of control, prolong
Long life, effectively ensure the reliability of pyrolysis oven, preferably meet use demand, it is simple easily to realize.
The temperature control equipment of the pyrolysis oven proposed according to embodiments of the present invention referring next to Description of Drawings.
Fig. 3 is the structural representation of the temperature control equipment of the pyrolysis oven of the embodiment of the present invention.
As shown in figure 3, the temperature control 100 of the pyrolysis oven includes：Acquisition module 101, determining module 102 and control module
103。
Wherein, acquisition module 101 is used for the Current Temperatures of collecting temperature.Determining module 102 is used for according to temperature field
Current Temperatures and target temperature carry out ratio, differential, integration control, to determine radiant tube replacement values.Control module 103 is used for root
Determine that target turns off radiant tube from radiant tube database according to radiant tube replacement values, and open new radiant tube replacement target shut-off
Radiant tube.The radiant tube number that the device 100 of the embodiment of the present invention can be turned off with dynamic control, it is to avoid the too high influence radiation of temperature
The service life of pipe, not only increases the flexibility of control, and extends service life, effectively ensures the reliability of pyrolysis oven
Property, preferably meet use demand.
Further, in one embodiment of the invention, the device 100 of the embodiment of the present invention also includes：Acquisition module.
Specifically, acquisition module is used to obtain radiant tube database, wherein, radiant tube database is obtained in the following manner：According to temperature
The present position of each radiant tube of multiple radiant tubes and Current Temperatures obtain prompt radiation pipe database in degree field；To initial spoke
The Current Temperatures for penetrating each radiant tube in pipe database are ranked up, to obtain radiant tube database.
Further, in one embodiment of the invention, acquisition module 101 is additionally operable to according to collection period collecting temperature
The Current Temperatures of field.
Alternatively, in one embodiment of the invention, collection period be each temperature field radiant tube commutation after it is pre-
If the time.
Alternatively, in one embodiment of the invention, temperature field can be multiple.
It should be noted that the explanation of the foregoing temprature control method embodiment to pyrolysis oven is also applied for the implementation
The temperature control equipment of the pyrolysis oven of example, here is omitted.
The temperature control equipment of pyrolysis oven according to embodiments of the present invention, can be according to the Current Temperatures in temperature field and target
Temperature determines radiant tube replacement values, so that opening new radiant tube replaces target shut-off radiant tube, realizes dynamic control shut-off
The purpose of radiant tube number, and then it is always ensured that the several radiant tubes of temperature highest are closed, it is to avoid the too high influence radiant tube of temperature
Service life, while be easily achieved uniform temperature field, better adapt to the requirement of technique, improve the flexibility of control, prolong
Long life, effectively ensure the reliability of pyrolysis oven, preferably meet use demand, it is simple easily to realize.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, must rather than the device or element for indicating or imply meaning
With specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In the description of the invention, " multiple " is meant that at least two, such as two, three
It is individual etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally；Can be that machinery connects
Connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or two interaction relationships of element, unless otherwise clearly restriction.For one of ordinary skill in the art
For, can as the case may be understand above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be with
It is the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office
Combined in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
Art personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or example
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of temprature control method of pyrolysis oven, it is characterised in that comprise the following steps：
The Current Temperatures of collecting temperature；
Current Temperatures and target temperature according to the temperature field carry out ratio, differential, integration control, to determine that radiant tube is replaced
Value；And
Determine from radiant tube database that target turns off radiant tube according to the radiant tube replacement values, and open new radiant tube to replace
Change the target shut-off radiant tube.
2. the temprature control method of pyrolysis oven according to claim 1, it is characterised in that the radiant tube database passes through
In the following manner is obtained：
Prompt radiation pipe is obtained according to the present position of each radiant tube of multiple radiant tubes and Current Temperatures in the temperature field
Database；
Current Temperatures to each radiant tube in the prompt radiation pipe database are ranked up, to obtain the radiant tube data
Storehouse.
3. the temprature control method of pyrolysis oven according to claim 1, it is characterised in that according to collection period collection
The Current Temperatures in temperature field.
4. the temprature control method of pyrolysis oven according to claim 3, it is characterised in that the collection period is each institute
State the Preset Time after the radiant tube commutation in temperature field.
5. the temprature control method of the pyrolysis oven according to claim any one of 1-4, it is characterised in that the temperature field is
It is multiple.
6. a kind of temperature control equipment of pyrolysis oven, it is characterised in that using the side according to claim any one of 1-5
Method, wherein, device includes：
Acquisition module, for the Current Temperatures of collecting temperature；
Determining module, ratio, differential, integration control are carried out for the Current Temperatures and target temperature according to the temperature field, with
Determine radiant tube replacement values；And
Control module, for determining that target turns off radiant tube from radiant tube database according to the radiant tube replacement values, and opens
The radiant tube of Qi Xin replaces the target shut-off radiant tube.
7. the temperature control equipment of pyrolysis oven according to claim 6, it is characterised in that also include：Acquisition module, is used for
The radiant tube database is obtained, wherein, the radiant tube database is obtained in the following manner：
Prompt radiation pipe is obtained according to the present position of each radiant tube of multiple radiant tubes and Current Temperatures in the temperature field
Database；
Current Temperatures to each radiant tube in the prompt radiation pipe database are ranked up, to obtain the radiant tube data
Storehouse.
8. the temperature control equipment of pyrolysis oven according to claim 6, it is characterised in that the acquisition module is additionally operable to root
The Current Temperatures in the temperature field are gathered according to collection period.
9. the temperature control equipment of pyrolysis oven according to claim 8, it is characterised in that the collection period is each institute
State the Preset Time after the radiant tube commutation in temperature field.
10. the temperature control equipment of the pyrolysis oven according to claim any one of 6-9, it is characterised in that the temperature field
It is multiple.
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| CN201611094105.3A CN106681392A (en) | 2016-12-01 | 2016-12-01 | Method and device for controlling temperatures of pyrolysis furnaces |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779268A (en) * | 2019-10-25 | 2020-02-11 | 长虹美菱股份有限公司 | Refrigerator internal temperature control system algorithm |
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