CN113551491B - Intelligent detection and regulation method and system for temperature of oven - Google Patents
Intelligent detection and regulation method and system for temperature of oven Download PDFInfo
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- CN113551491B CN113551491B CN202110857878.7A CN202110857878A CN113551491B CN 113551491 B CN113551491 B CN 113551491B CN 202110857878 A CN202110857878 A CN 202110857878A CN 113551491 B CN113551491 B CN 113551491B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
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Abstract
The invention discloses an intelligent detection and regulation method and system for the temperature of an oven, and relates to the technical field of intelligent control of the temperature of the oven. The method comprises the following steps: acquiring a deviation value of oven temperature uniformity of an oven; when the acquired oven temperature uniformity deviation value is larger than a preset deviation value, acquiring performance working conditions of an oven heating system, a control system, a circulating system and a heat preservation system; and sending a furnace temperature uniformity improvement operation instruction according to the acquired performance working conditions of the oven heating system, the control system, the circulating system and the heat preservation system. According to the intelligent detection and regulation method for the temperature of the oven, provided by the invention, the oven temperature uniformity improvement operation instruction is sent by acquiring the performance working conditions of the oven heating system, the control system, the circulating system and the heat preservation system, so that the reliability of the oven temperature uniformity regulation is improved.
Description
Technical Field
The invention relates to the technical field of intelligent control of oven temperature, in particular to an intelligent detection and regulation method and system for oven temperature.
Background
The existing automatic curing equipment respectively enables side frame glue and silica gel to be automatically heated, cured and cooled in a closed oven under the condition of setting a formula parameter process, and the problem currently encountered is that the temperature of heating environments manufactured by heating coils and circulating air in the oven is not uniform at all corners and middle positions of the oven, and three ovens are selected for testing, and the ovens are heated for 30min under the condition of nominal 150 ℃, so that the temperature of the module trays arranged on each layer of the ovens is tested. The data from the tests show that the maximum deviation of the temperature at various locations of the oven is 3.6 deg.c, with a relatively large range of fluctuations.
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provides an intelligent detection and regulation method and system for the temperature of an oven.
In a first aspect, the invention provides an intelligent detection and regulation method for the temperature of an oven, which comprises the following steps:
acquiring a deviation value of oven temperature uniformity of an oven;
when the acquired oven temperature uniformity deviation value is larger than a preset deviation value, acquiring performance working conditions of an oven heating system, a control system, a circulating system and a heat preservation system;
and sending a furnace temperature uniformity improvement operation instruction according to the acquired performance working conditions of the oven heating system, the control system, the circulating system and the heat preservation system.
According to the first aspect, in a first possible implementation manner of the first aspect, the step of "obtaining performance conditions of the oven heating system, the control system, the circulation system, and the heat preservation system when the obtained oven temperature uniformity deviation value is greater than the preset deviation value" specifically includes the following steps:
and when the deviation value of the uniformity of the oven temperature is larger than the preset deviation value, acquiring the nondestructive working condition of an alternating current contactor, the three-phase current balance working condition, the equal working condition of the cold resistance of the furnace wire, the phase-lacking working condition of the cold resistance of the furnace wire and the phase-lacking working condition of the cold resistance of the furnace wire of the heating system.
According to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, after the step of sending the furnace temperature uniformity improvement operation instruction according to the acquired nondestructive working condition of the ac contactor of the heating system, the three-phase current balance working condition, the working condition of equal furnace wire cold resistance and the working condition of phase loss of furnace wire cold resistance, the method further includes the following steps:
and when the phase difference of the three-phase currents is smaller than the preset phase difference value, acquiring the working conditions of high-temperature deformation of the resistance wire, equal-length pitch, sparse-dense pitch and adhesion of the molten rubber residues in the oven.
According to the first aspect, in a third possible implementation manner of the first aspect, the step of "obtaining performance conditions of the oven heating system, the control system, the circulation system, and the heat preservation system when the obtained oven temperature uniformity deviation value is greater than the preset deviation value" includes the following steps:
and when the obtained oven temperature uniformity deviation value is larger than the preset deviation value, obtaining the accuracy value of a temperature control sensor of the control system, the accuracy value of a compensation wire and the PID parameter value of the temperature controller.
According to the first aspect, in a fourth possible implementation manner of the first aspect, the step of "obtaining performance conditions of the oven heating system, the control system, the circulation system, and the heat preservation system when the obtained oven temperature uniformity deviation value is greater than the preset deviation value" includes the following steps:
and when the deviation value of the obtained oven temperature uniformity is larger than the preset deviation value, acquiring the air flow working condition of the electrothermal blowing drying box of the circulating system.
According to the first aspect, in a fifth possible implementation manner of the first aspect, the step of "obtaining performance conditions of the oven heating system, the control system, the circulation system, and the heat preservation system when the obtained oven temperature uniformity deviation value is greater than the preset deviation value" specifically includes the following steps:
and when the deviation value of the obtained oven temperature uniformity is larger than the preset deviation value, obtaining the material information, the thickness and the uniformity of the heat-insulating material of the heat-insulating system.
According to the first aspect, in a sixth possible implementation manner of the first aspect, after the step of sending the furnace temperature uniformity improvement operation instruction according to the obtained performance conditions of the oven heating system, the control system, the circulation system, and the heat preservation system, the method further includes the following steps:
acquiring the internal pressure of the oven, the air circulation working condition of the oven, the aging working condition of an insulating layer of the oven, the thickness working condition of the insulating layer of the oven and the temperature measuring mode of the oven;
and sending a furnace temperature uniformity further to improve an operation instruction according to the acquired oven internal pressure, the oven air circulation working condition, the oven insulating layer aging working condition, the oven insulating layer thickness working condition and the oven temperature measurement mode.
According to a sixth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, the step of sending the furnace temperature uniformity further to improve the operation instruction according to the obtained oven internal pressure, the oven air circulation condition, the oven insulation layer aging condition, the oven insulation layer thickness condition, and the oven temperature measurement manner specifically includes the following steps:
when the internal pressure of the oven is not higher than the external pressure of the oven, acquiring an operation instruction for improving the sealing performance of the oven;
when the power of the fan is smaller than the preset power value, acquiring an operation instruction for adjusting the power of the fan to be increased to the preset power value;
when the rotating speed of the fan is smaller than the preset rotating speed, acquiring an operating instruction for adjusting the rotating speed of the fan to be increased to a preset rotating speed value;
when the thickness of the insulating layer is smaller than the preset thickness value or the insulating layer is aged, acquiring an operating instruction for replacing the insulating layer;
when the voltage type thermocouple sensor is used for measuring the temperature of the oven, the voltage type thermocouple sensor is replaced by a current type transmitter.
In a second aspect, the present invention provides an intelligent detection and control system for oven temperature, comprising:
the oven temperature uniformity deviation value acquisition module is used for acquiring oven temperature uniformity deviation values of the oven;
the oven performance working condition acquisition module is used for acquiring the performance working conditions of the oven heating system, the control system, the circulating system and the heat preservation system when the acquired oven temperature uniformity deviation value is larger than a preset deviation value;
and the improved operation instruction sending module is in communication connection with the furnace temperature uniformity deviation value acquiring module and is used for sending a furnace temperature uniformity improvement operation instruction according to the acquired performance working conditions of the oven heating system, the control system, the circulating system and the heat preservation system.
According to the second aspect, in a first possible implementation manner of the second aspect, the furnace temperature uniformity deviation value obtaining module further includes:
the alternating current contactor lossless working condition acquisition unit is used for acquiring the alternating current contactor lossless working condition;
the three-phase current balance working condition acquisition unit is used for acquiring a three-phase current balance working condition;
the furnace wire cold resistance equal working condition acquisition unit is used for acquiring the furnace wire cold resistance equal working condition;
and the furnace wire cold resistance open-phase working condition acquisition unit is used for acquiring the furnace wire cold resistance open-phase working condition.
Compared with the prior art, the invention has the following advantages:
according to the intelligent detection and regulation method for the temperature of the oven, provided by the invention, the oven temperature uniformity improvement operation instruction is sent by acquiring the performance working conditions of the oven heating system, the control system, the circulating system and the heat preservation system, so that the reliability of the oven temperature uniformity regulation is improved.
Drawings
FIG. 1 is a flowchart of a method for intelligently detecting and regulating the temperature of an oven according to an embodiment of the present invention;
FIG. 2 is another flowchart of the method for intelligently detecting and controlling the temperature of the oven according to the embodiment of the invention;
FIG. 3 is a functional block diagram of an intelligent detection and control system for oven temperature according to an embodiment of the present invention;
fig. 4 is a functional block diagram of another method of the intelligent detection and control system for the temperature of the oven according to the embodiment of the invention.
In the figure, 100, a furnace temperature uniformity deviation value acquisition module; 200. an oven performance working condition acquisition module; 211. an alternating current contactor lossless working condition acquisition unit; 212. a three-phase current balance working condition acquisition unit; 213. a furnace wire cold resistance equal working condition obtaining unit; 214. a furnace wire cold resistance phase-loss working condition acquisition unit; 300. and improving an operation instruction sending module.
Detailed Description
Reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings. While the invention will be described in conjunction with the specific embodiments, it will be understood that they are not intended to limit the invention to the described embodiments. On the contrary, it is intended to cover alternatives, modifications, and equivalents as may be included within the spirit and scope of the invention as defined by the appended claims. It should be noted that the method steps described herein may be implemented by any functional block or functional arrangement, and that any functional block or functional arrangement may be implemented as a physical entity or a logical entity, or a combination of both.
In order that those skilled in the art will better understand the present invention, the following detailed description of the invention is provided in conjunction with the accompanying drawings and the detailed description of the invention.
Note that: the example to be described next is only a specific example, and does not limit the embodiments of the present invention necessarily to the following specific steps, values, conditions, data, orders, and the like. Those skilled in the art can, upon reading this specification, utilize the concepts of the present invention to construct more embodiments than those specifically described herein.
Referring to fig. 1, an embodiment of the present invention provides an intelligent detection and control method for oven temperature, including the following steps:
s100, obtaining a deviation value of oven temperature uniformity;
s200, when the obtained oven temperature uniformity deviation value is larger than a preset deviation value, obtaining performance working conditions of an oven heating system, a control system, a circulation system and a heat preservation system;
and S300, sending a furnace temperature uniformity improvement operation instruction according to the acquired performance working conditions of the oven heating system, the control system, the circulation system and the heat preservation system.
According to the intelligent detection and regulation method for the temperature of the oven, provided by the invention, the oven temperature uniformity improvement operation instruction is sent by acquiring the performance working conditions of the oven heating system, the control system, the circulating system and the heat preservation system, so that the reliability of the oven temperature uniformity regulation is improved.
In an embodiment, referring to fig. 2, the step of obtaining the performance conditions of the oven heating system, the control system, the circulation system, and the heat preservation system when the obtained oven temperature uniformity deviation value is greater than the preset deviation value includes the following steps:
s210, when the obtained deviation value of the uniformity of the oven temperature is larger than a preset deviation value, obtaining the nondestructive working condition of an alternating current contactor, the three-phase current balance working condition, the working condition of equal cold resistance of the oven wire and the phase-lacking working condition of the cold resistance of the oven wire of the heating system;
s311, when the alternating current contactor of the heating system is damaged, sending a damage-eliminating operation instruction to the alternating current contactor of the heating system;
s312, when the three-phase current difference exceeds a preset difference value, sending an operation instruction for adjusting the three-phase current difference until the three-phase current difference does not exceed the preset difference value;
s313, when the oven wire resistances are not equal, sending an operation instruction for adjusting the oven wire circuit to be equal;
and S314, when the oven wire resistor is out of phase, sending an oven wire resistor phase supplementing operation instruction.
In an embodiment, the step of "obtaining an operation instruction for eliminating damage to the ac contactor of the heating system" is specifically obtaining an operation instruction for replacing the heating contactor or repairing the ac contactor of the heating system.
In one embodiment, after the step of obtaining the lossless operating condition of the ac contactor of the heating system, the balanced operating condition of the three-phase current, the equal operating condition of the cold resistance of the furnace wire and the phase-loss operating condition of the cold resistance of the furnace wire, the method further comprises the following steps:
when the phase difference of the three-phase currents is smaller than a preset phase difference value, acquiring the working conditions of high-temperature deformation of the resistance wire, equal-pitch-length working conditions, sparse-dense-pitch working conditions and adhesive residue adhesion working conditions in the oven;
when the resistance wire is influenced by high temperature and is deformed in the long-time use process, an operation instruction for maintaining or replacing the resistance wire is sent;
when the pitch in the oven is not equal in length, sending an operation instruction for adjusting the pitch in the oven;
when the thread pitch density degrees in the oven are inconsistent, sending an operation instruction for adjusting the thread pitch density degrees in the oven;
and when the molten glue residues are adhered to the inside of the oven, sending an operation instruction for removing the slag of the molten glue residues adhered to the inside of the oven.
In one embodiment, the step of obtaining the performance conditions of the oven heating system, the control system, the circulation system and the heat preservation system when the obtained oven temperature uniformity deviation value is greater than the preset deviation value includes the following steps:
when the obtained oven temperature uniformity deviation value is larger than a preset deviation value, obtaining the accuracy value of a temperature control sensor of a control system, the accuracy value of a compensation lead and the PID parameter value of a temperature controller;
when the temperature control sensor or the compensation guide accuracy value is lower than a preset accuracy value, acquiring an operation instruction for replacing the temperature sensor or the compensation guide wire;
and when the PID parameter value of the temperature controller is not matched with the PID value of the temperature controller required to be used by the oven, sending an operation instruction for replacing the temperature controller which accords with the PID parameter value of the oven.
In one embodiment, the step of obtaining the performance conditions of the oven heating system, the control system, the circulation system and the heat preservation system when the obtained oven temperature uniformity deviation value is greater than the preset deviation value includes the following steps:
when the obtained deviation value of the uniformity of the oven temperature is larger than the preset deviation value, acquiring the airflow working condition of an electrothermal blowing drying oven of the circulating system;
and when the air flow of the electrothermal blowing drying box of the circulating system is not uniform, acquiring an operation instruction for adjusting the electrothermal blowing drying shape of the circulating system to uniform air flow.
In an embodiment, the step of obtaining an operation instruction for adjusting the electric hot air drying shape of the circulation system to uniform air flow when the air flow of the electric hot air drying box of the circulation system is not uniform specifically includes the following steps:
when the airflow of the electrothermal blowing drying box of the circulating system is not uniform, acquiring an air channel structure of the electrothermal blowing drying box;
when the air channel structure of the electric heating air blast drying box is a single air channel structure, acquiring the position working conditions of a centrifugal fan and an air deflector of the single air channel structure;
and when the positions of the centrifugal fan and the air deflector of the single air duct structure deviate from the preset installation standard position, acquiring an operation instruction for adjusting the positions of the centrifugal fan and the air deflector of the single air duct structure to the load preset installation standard position.
In one embodiment, the step of obtaining the performance conditions of the oven heating system, the control system, the circulation system and the heat preservation system when the obtained oven temperature uniformity deviation value is greater than the preset deviation value includes the following steps:
when the deviation value of the obtained oven temperature uniformity is larger than a preset deviation value, obtaining the material information, the thickness and the uniformity of the heat-insulating material of the heat-insulating system;
when the material quality of the heat insulation material does not meet the performance requirement of the preset heat insulation material, sending an operation instruction for replacing the heat insulation material meeting the performance requirement of the preset heat insulation material;
when the thickness of the heat insulation material is lower than a preset thickness value, an operation instruction for adjusting the thickness of the heat insulation material is sent;
and when the uniformity of the heat-insulating material is lower than the preset uniformity, sending an operation instruction for adjusting the uniformity of the heat-insulating material.
In an embodiment, after the step of sending the furnace temperature uniformity improvement operation instruction according to the obtained performance conditions of the oven heating system, the control system, the circulation system and the heat preservation system, the method further includes the following steps:
acquiring the internal pressure of the oven, the air circulation working condition of the oven, the aging working condition of an insulating layer of the oven, the thickness working condition of the insulating layer of the oven and the temperature measuring mode of the oven;
and sending a furnace temperature uniformity further to improve an operation instruction according to the acquired oven internal pressure, the oven air circulation working condition, the oven insulating layer aging working condition, the oven insulating layer thickness working condition and the oven temperature measurement mode.
In an embodiment, the step of sending the furnace temperature uniformity further to improve the operation instruction according to the obtained oven internal pressure, the oven air circulation condition, the oven insulation layer aging condition, the oven insulation layer thickness condition, and the oven temperature measurement mode specifically includes the following steps:
when the drying oven is heated and collided in the using process, the pressure in the drying oven with good heat balance is higher than the external pressure of the drying oven, so that when the internal pressure of the drying oven is not higher than the external pressure of the drying oven, an operation instruction for improving the sealing performance of the drying oven is sent;
when the return air pipe is not positioned at the top center position of the inner cavity of the oven, sending an operation instruction for adjusting the return air pipe to the top center position of the inner cavity of the oven;
when the power of the fan is smaller than the preset power value, sending an operation instruction for adjusting the power of the fan to be increased to the preset power value;
when the rotating speed of the fan is smaller than the preset rotating speed, sending an operating instruction for adjusting the rotating speed of the fan to rise to the preset rotating speed value;
the uniform circular flow of air in the oven is ensured by adjusting the position of the return air pipe, the power of the fan and the rotating speed of the fan.
When the thickness of the insulating layer is smaller than the preset thickness value or the insulating layer is aged, an operating instruction for replacing the insulating layer is sent; when the voltage type thermocouple sensor is used for measuring the temperature of the oven, namely the voltage type thermocouple sensor is used for outputting a voltage signal, but the voltage signal is less accurate than a current signal, therefore, the voltage type thermocouple sensor is replaced by the current type transmitter, and the temperature signal is converted into the current signal in real time to obtain a more accurate numerical value after the current signal is converted by replacing the transmitter with the current type transmitter.
In a more specific embodiment, the predetermined thickness of the insulating layer is 40mm when the maximum temperature of the oven is 150 ℃.
Based on the same inventive concept, please refer to fig. 3, the invention provides an intelligent detection and control system for oven temperature, comprising:
the oven temperature uniformity deviation value obtaining module 100 is used for obtaining oven temperature uniformity deviation values of the oven;
the oven performance working condition acquisition module 200 is in communication connection with the oven temperature uniformity deviation value acquisition module 100 and is used for acquiring performance working conditions of an oven heating system, a control system, a circulation system and a heat preservation system when the acquired oven temperature uniformity deviation value is larger than a preset deviation value;
and the improvement operation instruction sending module 300 is in communication connection with the furnace temperature uniformity deviation value obtaining module 200 and is used for sending a furnace temperature uniformity improvement operation instruction according to the obtained performance working conditions of the oven heating system, the control system, the circulation system and the heat preservation system.
In an embodiment, referring to fig. 4, the oven performance condition obtaining module further includes:
the alternating current contactor lossless working condition obtaining unit 211 is used for obtaining the alternating current contactor lossless working condition;
a three-phase current balance condition acquisition unit 212 for acquiring a three-phase current balance condition;
a furnace wire cold resistance equalization working condition obtaining unit 213, configured to obtain a furnace wire cold resistance equalization working condition;
and a furnace wire cold resistance open-phase working condition obtaining unit 214, configured to obtain a furnace wire cold resistance open-phase working condition.
Based on the same inventive concept, the embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements all or part of the method steps of the above method.
The present invention can implement all or part of the processes of the above methods, and can also be implemented by using a computer program to instruct related hardware, where the computer program can be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the above method embodiments can be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, recording medium, U.S. disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution media, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, in accordance with legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunications signals.
Based on the same inventive concept, an embodiment of the present application further provides an electronic device, which includes a memory and a processor, where the memory stores a computer program running on the processor, and the processor executes the computer program to implement all or part of the method steps in the method.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, the processor being the control center of the computer device and the various interfaces and lines connecting the various parts of the overall computer device.
The memory may be used to store computer programs and/or modules, and the processor may implement various functions of the computer device by executing or executing the computer programs and/or modules stored in the memory, as well as by invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (e.g., a sound playing function, an image playing function, etc.); the storage data area may store data (e.g., audio data, video data, etc.) created according to the use of the cellular phone. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, server, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), servers and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (4)
1. An intelligent detection and regulation method for the temperature of an oven is characterized in that:
acquiring a deviation value of oven temperature uniformity of an oven;
when the acquired oven temperature uniformity deviation value is larger than a preset deviation value, acquiring performance working conditions of an oven heating system, a control system, a circulating system and a heat preservation system;
sending a furnace temperature uniformity improvement operation instruction according to the acquired performance working conditions of the oven heating system, the control system, the circulating system and the heat preservation system;
when the obtained oven temperature uniformity deviation value is larger than the preset deviation value, acquiring performance working conditions of an oven heating system, a control system, a circulating system and a heat preservation system;
sending a furnace temperature uniformity improvement operation instruction according to the acquired performance working conditions of the oven heating system, the control system, the circulating system and the heat preservation system, and specifically comprising the following steps:
when the obtained deviation value of the uniformity of the oven temperature is larger than the preset deviation value, obtaining the nondestructive working condition of an alternating current contactor, the three-phase current balance working condition, the working condition of equal cold resistance of the oven wire and the phase-lacking working condition of the cold resistance of the oven wire of the heating system;
when the alternating current contactor of the heating system is damaged, sending a damage-eliminating operation instruction to the alternating current contactor of the heating system;
when the three-phase current difference exceeds a preset difference value, sending an operation instruction for adjusting the three-phase current difference until the three-phase current difference does not exceed the preset difference value;
when the oven wire resistances are not equal, sending an operation instruction for adjusting the oven wire circuit to be equal;
when the oven wire resistor is out of phase, sending an oven wire resistor phase supplementing operation instruction;
when the obtained oven temperature uniformity deviation value is larger than the preset deviation value, acquiring performance working conditions of an oven heating system, a control system, a circulating system and a heat preservation system;
sending a furnace temperature uniformity improvement operation instruction according to the acquired performance working conditions of the oven heating system, the control system, the circulating system and the heat preservation system, and specifically comprising the following steps:
when the obtained oven temperature uniformity deviation value is larger than a preset deviation value, obtaining the accuracy value of a temperature control sensor of a control system, the accuracy value of a compensation lead and the PID parameter value of a temperature controller;
when the temperature control sensor or the compensation guide accuracy value is lower than a preset accuracy value, acquiring an operation instruction for replacing the temperature sensor or the compensation guide wire;
when the PID parameter value of the temperature controller is not matched with the PID value of the temperature controller required to be used by the oven, sending an operation instruction for replacing the temperature controller which meets the PID parameter value of the oven;
when the obtained oven temperature uniformity deviation value is larger than the preset deviation value, acquiring performance working conditions of an oven heating system, a control system, a circulating system and a heat preservation system;
sending a furnace temperature uniformity improvement operation instruction according to the acquired performance working conditions of the oven heating system, the control system, the circulating system and the heat preservation system, and specifically comprising the following steps:
when the obtained deviation value of the uniformity of the oven temperature is larger than the preset deviation value, acquiring the airflow working condition of an electrothermal blowing drying oven of the circulating system;
when the air flow of the electrothermal blowing drying box of the circulating system is not uniform, acquiring an operation instruction for adjusting the electrothermal blowing drying shape of the circulating system to uniform air flow;
when the obtained oven temperature uniformity deviation value is larger than the preset deviation value, acquiring performance working conditions of an oven heating system, a control system, a circulating system and a heat preservation system;
sending a furnace temperature uniformity improvement operation instruction according to the acquired performance working conditions of the oven heating system, the control system, the circulating system and the heat preservation system, and specifically comprising the following steps:
when the deviation value of the obtained oven temperature uniformity is larger than a preset deviation value, obtaining the material information, the thickness and the uniformity of the heat-insulating material of the heat-insulating system;
when the material quality of the heat insulation material does not meet the performance requirement of the preset heat insulation material, sending an operation instruction for replacing the heat insulation material meeting the performance requirement of the preset heat insulation material;
when the thickness of the heat insulation material is lower than a preset thickness value, an operation instruction for adjusting the thickness of the heat insulation material is sent;
and when the uniformity of the heat-insulating material is lower than the preset uniformity, sending an operation instruction for adjusting the uniformity of the heat-insulating material.
2. The intelligent detection and control method for the temperature of the oven according to claim 1, wherein after the step of obtaining the nondestructive working condition of the alternating current contactor of the heating system, the balanced working condition of the three-phase current, the equal working condition of the cold resistance of the furnace wire and the phase-lacking working condition of the cold resistance of the furnace wire, the method further comprises the following steps:
when the three-phase current phase difference is smaller than the preset phase difference value, the working conditions of high-temperature deformation of the resistance wire, the working conditions of equal length of the screw pitch, the working conditions of sparse density of the screw pitch and the working conditions of adhesion of the molten rubber residues in the oven are obtained.
3. The intelligent detection and control method for the temperature of the oven according to claim 1, wherein after the step of sending the operation instruction for improving the uniformity of the temperature of the oven according to the acquired performance conditions of the heating system, the control system, the circulating system and the heat preservation system of the oven, the method further comprises the following steps:
acquiring the internal pressure of the oven, the air circulation working condition of the oven, the aging working condition of an insulating layer of the oven, the thickness working condition of the insulating layer of the oven and the temperature measuring mode of the oven;
and sending a furnace temperature uniformity further to improve an operation instruction according to the acquired oven internal pressure, the oven air circulation working condition, the oven insulating layer aging working condition, the oven insulating layer thickness working condition and the oven temperature measurement mode.
4. The intelligent detection and control method for the temperature of the oven according to claim 3, wherein the step of sending the uniformity of the temperature of the oven to further improve the operation instruction according to the obtained internal pressure of the oven, the air circulation condition of the oven, the aging condition of the insulating layer of the oven, the thickness condition of the insulating layer of the oven and the temperature measurement mode of the oven specifically comprises the following steps:
when the internal pressure of the oven is not higher than the external pressure of the oven, sending an operation instruction for improving the sealing performance of the oven;
when the power of the fan is smaller than the preset power value, sending an operation instruction for adjusting the power of the fan to be increased to the preset power value;
when the rotating speed of the fan is smaller than the preset rotating speed, sending an operating instruction for adjusting the rotating speed of the fan to rise to the preset rotating speed value;
when the thickness of the insulating layer is smaller than the preset thickness value or the insulating layer is aged, an operating instruction for replacing the insulating layer is sent;
when the voltage type thermocouple sensor is used for measuring the temperature of the oven, the voltage type thermocouple sensor is replaced by a current type transmitter.
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| CN100591778C (en) * | 2007-09-07 | 2010-02-24 | 上海中加电炉有限公司 | Heated air circulation bake oven |
| CN103375975A (en) * | 2012-04-13 | 2013-10-30 | 北京市劳动保护科学研究所 | Heating and drying furnace with forward and reverse hot air circulation |
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