CN117055660A - Heating control device, heating control system and heating control method for heating device - Google Patents
Heating control device, heating control system and heating control method for heating device Download PDFInfo
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- 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
- G05D23/22—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element being a thermocouple
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Abstract
The present application relates to a temperature increase control device, a system, and a temperature increase control method for a heating device. Wherein the method comprises the following steps: setting a temperature control range of the heating device, generating a plurality of temperature intervals according to the temperature control range, comparing the temperature with different temperature intervals after acquiring the current temperature of the heating device, determining a temperature interval corresponding to the current temperature, and controlling the heating device to raise the temperature according to the temperature raising rate of the corresponding temperature interval until the temperature of the heating device is raised to the temperature upper limit value of the temperature interval. Therefore, the heating process of the heating device can be divided into a plurality of sub-processes corresponding to the temperature intervals by arranging the temperature intervals, the heating of the heating device is controlled according to the temperature upper limit value and the heating rate of each temperature interval, the operability of the control of the heating process is greatly improved, the influence of overshoot is reduced, the accuracy of the temperature control is enhanced, the adjusting time is shortened, and the heating efficiency is improved.
Description
Technical Field
The disclosure relates to the field of automation control, and in particular relates to a heating control method, device and system of a heating device.
Background
The heating device is a key device in the process flows of production, manufacture and the like, for example, the heating device such as a heating wire, a heating plate and the like is needed to be used in the processes of vacuum coating and the like to regulate and control the temperature of specific parts, materials and even working scenes.
At present, when a heating device is used for heating, a conventional PID control method is generally adopted. The general flow of the control method is as follows: the target temperature is set in the upper computer, then a PID algorithm is realized in the PLC, and finally the PWM output is regulated through the solid-state relay to control the heating system. However, conventional PID control has many problems due to the difference in temperature control requirements. For example: the temperature control process is inaccurate, and the temperature rising rate cannot be controlled; the temperature rising process has overshoot, which is easy to cause the deformation of the heating plate, etc.
Disclosure of Invention
In view of the above, the present application provides a temperature increase control device, system, and temperature increase control method for a heating device. The technical scheme of the present disclosure is as follows:
according to an aspect of the embodiments of the present disclosure, there is provided a temperature increase control method of a heating apparatus, including:
s200: setting a temperature control range of a heating device, generating M temperature intervals according to the temperature control range, wherein each temperature interval is provided with a corresponding heating rate;
s220: acquiring the current temperature of the heating device, comparing the current temperature with each temperature interval and obtaining an initial temperature control parameter N; wherein N is an nth temperature interval of the M temperature intervals, the current temperature is lower than a temperature upper limit value of the nth temperature interval, and M, N is an integer;
s240: controlling the heating device to heat according to the heating rate of the Nth temperature interval, stopping heating until the current temperature reaches the temperature upper limit value, and automatically increasing N according to a preset step length;
in case N is less than or equal to M, S240 is repeatedly performed.
In one embodiment, after controlling the heating device to raise the temperature according to the temperature raising rate of the nth temperature interval until the current temperature reaches the temperature upper limit value, the method further includes:
s260: and controlling the heating device to keep the temperature for a preset time.
In one embodiment, the controlling the heating device to raise the temperature at the temperature raising rate of the nth temperature interval includes:
setting the temperature upper limit value of the Nth temperature interval as a real-time given temperature;
generating a real-time control value corresponding to the real-time given temperature through a preset algorithm;
and controlling the heating device to heat according to the real-time control value.
In one embodiment, after obtaining the current temperature of the heating device and comparing the current temperature with each temperature interval to obtain the initial temperature control parameter N, the method further includes:
s230: when N is greater than M, the temperature increase is ended.
According to another aspect of the embodiments of the present disclosure, there is provided a temperature increase control device of a heating device, including:
the data processing module is used for setting a temperature control range of the heating device, generating M temperature intervals according to the temperature control range, and setting a corresponding heating rate in each temperature interval;
the first execution module is used for obtaining the current temperature of the heating device, comparing the current temperature with each temperature interval and obtaining an initial temperature control parameter N; wherein N represents an nth temperature interval of the M temperature intervals in which the heating device is located, M, N is an integer, and when the current temperature reaches the temperature upper limit value, N is increased by itself according to a preset step size;
and the second execution module is used for controlling the heating device to heat according to the heating rate of the Nth temperature interval under the condition that N is less than or equal to M.
In one embodiment, the temperature-raising control device further includes a third execution module, where the third execution module is configured to control the heating device to keep warm for a preset time.
In one embodiment, the second execution module further includes:
a temperature setting unit, configured to set a temperature upper limit value of the nth temperature interval to a real-time given temperature;
the real-time control unit is used for generating a real-time control value corresponding to the real-time given temperature through a preset algorithm;
and the real-time heating unit is used for controlling the heating device to heat according to the real-time control value.
In one embodiment, the temperature increase control device further includes a fourth execution module for ending the temperature increase if N is greater than M.
According to another aspect of the embodiments of the present disclosure, there is also provided a temperature increase control system of a heating device, including a controller, an actuator, a temperature detector, and a heating device;
the controller is respectively connected with the actuator and the temperature detector and is used for receiving signals sent by the actuator and the detector and sending signals to the actuator;
the actuator is connected with the heating device and is used for adjusting the heating process of the heating device according to the signal sent by the controller;
the temperature detector is connected with the heating device and is used for acquiring the real-time temperature of the heating device.
In one embodiment, the actuator is a thyristor or a power regulator.
In the technical scheme provided by the embodiment of the disclosure, the temperature control range of the heating device can be set, a plurality of temperature intervals are generated according to the temperature control range, after the current temperature of the heating device is obtained, the temperature can be compared with different temperature intervals to determine the temperature interval corresponding to the current temperature, and the heating device is controlled to heat according to the heating rate of the corresponding temperature interval until the temperature of the heating device rises to the upper limit value of the temperature interval. Therefore, the heating process of the heating device can be divided into a plurality of sub-processes corresponding to the temperature intervals by arranging the temperature intervals, the heating of the heating device is controlled according to the temperature upper limit value and the heating rate of each temperature interval, the operability of the control of the heating process is greatly improved, the influence of overshoot is reduced, the accuracy of the temperature control is enhanced, the adjusting time is shortened, and the heating efficiency is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
In order to more clearly illustrate the embodiments of the present description or the technical solutions in the prior art, the following description will briefly explain the embodiments or the drawings used in the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments described in the present description, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method of controlling temperature rise of a heating device according to one embodiment;
FIG. 2 is a flow chart of a method of controlling temperature rise of a heating apparatus according to another embodiment;
FIG. 3 is a schematic flow chart of controlling a heating device to raise temperature in one embodiment;
FIG. 4 is a flow chart of a method of controlling temperature rise of a heating apparatus according to another embodiment;
FIG. 5 is a flow diagram of a warm-up operation performed by a PLC in one embodiment;
FIG. 6 is a schematic flow chart of a PLC controlling the heating device to raise the temperature according to the target temperature and a preset algorithm in another embodiment;
FIG. 7 is a graph comparing the effect of specifically controlling a warm-up process with a conventional warm-up process in one embodiment;
FIG. 8 is a schematic view showing a structure of a temperature-increasing control device of a heating device in one embodiment;
fig. 9 is a schematic structural view of a temperature increase control device of a heating device in another embodiment;
fig. 10 is a schematic diagram showing a structure of a temperature increase control system of a heating apparatus in one embodiment.
Detailed Description
In order to enable those skilled in the art to better understand the technical solutions of the present disclosure, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings.
It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the foregoing figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the disclosure described herein may be capable of operation in sequences other than those illustrated or described herein. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, it is not excluded that additional identical or equivalent elements may be present in a process, method, article, or apparatus that comprises a described element. For example, if first, second, etc. words are used to indicate a name, but not any particular order.
The terms "vertical," "horizontal," "left," "right," "upper," "lower," "front," "rear," "circumferential," "direction of travel," and the like as used herein are based on the orientation or positional relationship shown in the drawings and are merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or", "at least one of …" as used herein includes any and all combinations of one or more of the associated listed items. The connection, etc. described in the present disclosure may be a direct connection through an interface or a pin between devices, or may be a connection through a wire, or may be a wireless connection (communication connection).
At present, a large number of production equipment based on automatic control is used in many industrial production environments, in particular, vacuum coating equipment and the like, related parameters and algorithms can be set in an upper computer in advance, and the specific control of the process flow is finished by a PLC (Programmable Logic Controller ). In the vacuum coating process, the temperature of the heating plate has an important influence on the quality of the coating. The traditional heating control method adopts a PID (Proportion Integral Differential) temperature control method, the method converts detected temperature information into an electric signal through a temperature sensor, performs analog-to-digital conversion to output current temperature information, and then compares the current temperature with a set temperature to judge whether the set target temperature is reached. If the set target temperature is not reached, the temperature is adjusted according to the temperature difference value until the temperature difference value is zero.
The traditional PID temperature control can realize closed-loop control from the current temperature to the target temperature, and can primarily meet the temperature control requirement of equipment. However, for the technical fields of vacuum coating and the like, the conventional PID temperature control has some problems: the overshoot exists, and the heating plate is easy to deform particularly when the heating is performed at low temperature; the temperature control process is inaccurate, and the temperature rising rate cannot be controlled; operability is not high and only one target temperature can be set.
To solve the above-mentioned technical problem, according to an aspect of an embodiment of the present disclosure, as shown in fig. 1, there is provided a temperature increase control method of a heating device, including:
step S200: setting a temperature control range of the heating device, generating M temperature intervals according to the temperature control range, and setting a corresponding temperature rising rate in each temperature interval.
The heating device may be a heating device, a heating component, etc. used in a process flow including a heating link, for example, the heating device may be a heating plate of some vacuum coating equipment.
Specifically, the temperature control range of the temperature rise can be set in advance through the upper computer, M temperature intervals can be generated in the upper computer, and the PLC can obtain the M temperature intervals from the upper computer. In some specific implementations, M may be set by an operator according to a heating requirement of the heating device, for example, M may be set to 10 in some vacuum coating process flows.
It should be noted that, for the preset M temperature intervals, each temperature interval includes at least one upper temperature limit T M And T is 1 ≤T 2 ≤…≤T M . For example, in a specific embodiment, 3 temperature intervals are preset as follows: (20, 100), (100, 200), (200, 300); wherein the upper temperature limit T of the first temperature interval 1 100 DEG, the firstUpper limit T of two temperature ranges 2 200 degrees, the upper limit T of the third temperature range 3 300 degrees. In some other embodiments, adjacent temperature intervals may also be discontinuous, i.e. the upper temperature limit of the preceding temperature interval may be different from the lowest temperature of the following temperature interval.
Step S220: acquiring the current temperature of the heating device, comparing the current temperature with each temperature interval and obtaining an initial temperature control parameter N; wherein N is the nth temperature interval of the M temperature intervals, the current temperature is lower than the upper temperature limit value of the nth temperature interval, and M, N is an integer.
Specifically, the current temperature of the heating device may be acquired by a temperature sensor. For example, when the heating device is a heating plate, the current real-time temperature of the heating plate can be obtained through a temperature measuring element such as a thermocouple. After the current temperature of the heating device is obtained, the temperature may be compared with M different temperature intervals, and it is determined that the temperature is in an nth one of the temperature intervals. It should be understood that if the current temperature of the heating device is in the nth temperature interval, the current temperature is lower than the upper temperature limit value of the temperature interval.
Step S240: and controlling the heating device to heat according to the heating rate of the Nth temperature interval, stopping heating until the current temperature reaches the temperature upper limit value, and automatically increasing N according to a preset step length.
The preset step length may be a fixed value.
Specifically, in the case where the current temperature of the heating device is in the nth temperature zone, the temperature zone may be taken as the current temperature zone of the heating device, if the current temperature is lower than the temperature upper limit T of the current temperature zone N The heating device can be controlled to heat according to the preset heating rate of the temperature interval until the current temperature of the heating device reaches the upper temperature limit value T N After that, the heating device can be controlled to stop heating, and N is automatically increased according to the step length. For example, if the preset step size is 1, n=n+1 may be performed.
Step S280: in case N is less than or equal to M, S240 is repeatedly performed.
Specifically, after the value of N is changed, the temperature interval corresponding to the heating device may be redetermined according to the magnitudes of N and M, and step S240 may be performed.
It should be noted that the above steps may be performed by the PLC according to a preset algorithm, which may be modified on the basis of a PID algorithm.
In the technical scheme provided by the embodiment of the disclosure, the temperature control range of the heating device can be set, a plurality of temperature intervals are generated according to the temperature control range, after the current temperature of the heating device is obtained, the temperature can be compared with different temperature intervals to determine the temperature interval corresponding to the current temperature, and the heating device is controlled to heat according to the heating rate of the corresponding temperature interval until the temperature of the heating device rises to the upper limit value of the temperature interval. Therefore, the heating process of the heating device can be divided into a plurality of sub-processes corresponding to the temperature intervals by arranging the temperature intervals, the heating of the heating device is controlled according to the temperature upper limit value and the heating rate of each temperature interval, the operability of the control of the heating process is greatly improved, the influence of overshoot is reduced, the loss of the heating device is reduced, the accuracy of the temperature control is enhanced, the adjusting time is shortened, and the heating efficiency is improved.
In one embodiment, as shown in fig. 2, after controlling the heating device to raise the temperature at the temperature raising rate of the nth temperature interval until the current temperature reaches the temperature upper limit value, the method further includes:
step S260: and controlling the heating device to keep the temperature for a preset time.
Specifically, the heat preservation time can be set in the algorithm in advance, after the temperature of the heating device controlled by the PLC according to the algorithm reaches the upper limit value of the temperature of the section, the PLC can also control the heating device to preserve heat for a preset time, and N is automatically increased according to a preset step length after the heat preservation time is reached. In some other embodiments, the incubation time may be set by self-defining the temperature intervals, and the incubation time of each temperature interval may be the same or different.
In the above embodiment, after the temperature of the heating device is controlled to reach the temperature upper limit value of the temperature interval, the heating device may be controlled to perform heat preservation according to the preset heat preservation time, and the next step is performed after the heat preservation is completed. Therefore, the heat preservation time can be set in advance according to the characteristics of the heating device and the characteristics of the temperature stage, and the temperature fluctuation generated by the PID control hysteresis characteristic is effectively restrained, so that the influence of the temperature fluctuation on the process flow is reduced. In addition, when heating device is heating material such as hot plate, because the heated board size is different, when carrying out temperature acquisition in order to acquire the current temperature of hot plate to the hot plate, the temperature acquisition process is local collection, can not guarantee that the whole temperature of jumbo size hot plate is unanimous, can let the hot plate temperature more even through setting up the holding time, avoids hot deformation scheduling problem to appear to the hot plate.
In one embodiment, after step S220, further comprising:
and under the condition that the current temperature is equal to or higher than the temperature upper limit value of the Nth temperature interval, automatically increasing N according to a preset step length until the current temperature is lower than the temperature upper limit value of the Nth temperature interval, and executing step S240.
Specifically, after the current temperature of the heating device is acquired, based on the nth temperature interval in which the heating device is currently located, the relationship between the current temperature and the temperature upper limit value of the temperature interval may be determined. If the current temperature is equal to the upper temperature limit value T of the current temperature interval N The step S240 may be executed by directly increasing N by a preset step until the current temperature is lower than the upper temperature limit value of the temperature interval after N is increased.
In the above embodiment, after the current temperature of the heating device is obtained, when the current temperature is equal to the upper limit value of the nth temperature interval, N can be directly increased according to the preset step length, and the temperature rise is not required to be controlled according to the temperature interval, so that the temperature rise flow is simplified, and the temperature rise efficiency is improved.
In one embodiment, as shown in fig. 3, the controlling the heating device to raise the temperature at the temperature raising rate of the nth temperature interval includes:
step S2402, setting the temperature upper limit value of the nth temperature zone to a real-time given temperature.
Specifically, in the case where the current temperature is lower than the temperature upper limit value of the nth temperature interval, the temperature upper limit value may be transferred to the slope generator to generate the real-time given temperature.
Step S2404, generating a real-time control value corresponding to the real-time given temperature through a preset algorithm.
Specifically, the real-time given temperature may be passed to a PID algorithm to generate a real-time control value.
Step S2406, controlling the heating device to raise the temperature according to the real-time control value.
Specifically, the PLC may transmit the generated real-time control value to the actuator, and the actuator may implement the temperature increase of the heating device. Wherein, the actuator can be a device such as a silicon controlled rectifier, a power regulator and the like.
In the embodiment, the real-time given temperature and the real-time control value can be generated according to the temperature upper limit value of the temperature interval, and the temperature rising process is regulated and controlled by utilizing the PID algorithm, so that the defect of the traditional PID temperature control is overcome, the accuracy of the PID temperature control is enhanced, and the temperature rising efficiency is improved.
In one embodiment, as shown in fig. 4, after obtaining the current temperature of the heating device, comparing the current temperature with each temperature interval to obtain an initial temperature control parameter N, the method further includes:
in step S230, when N is greater than M, the temperature increase is ended.
Specifically, after the preset M temperature intervals and the temperature control parameter N, if N is greater than M, the temperature of the heating device may be considered to have exceeded the application range of the temperature interval, and the temperature raising process may be directly ended.
In order to further embody the beneficial effects of the scheme of the application, the following description is made with reference to an embodiment specifically applied to a heating scene. This embodiment may be implemented in a PLC that may be connected to an upper computer and obtain relevant parameters. In this embodiment, the upper computer presets a target temperature, which may indicate the temperature to which the heating device needs to reach, and the value of M is 10, i.e., 10 temperature intervals are provided.
Fig. 5 is a schematic flow chart of a temperature increasing operation performed by the PLC in this embodiment. As shown in fig. 5, after the PLC controls the heating device to start heating, n=1 is initialized, where N is the initial temperature control parameter in each of the above embodiments. The tenth temperature is the upper limit value of the 10 th temperature interval, when the preset target temperature is lower than the upper limit value, whether N is smaller than or equal to 10 is confirmed, if so, whether the current temperature is smaller than the nth segment temperature (the upper limit value of the nth temperature interval) or not can be compared, if the current temperature is larger than the nth segment temperature, N=n+1 is directly executed, if the current temperature is smaller than the nth segment temperature, the segment temperature can be used as the current target temperature to start slope mode to heat, after the heating device is heated to the segment temperature, the heating device is controlled to keep the preset time of the nth segment, and after the heat preservation is finished, N=n+1 is executed. According to the heating flow in the drawing, the sectional heating may be ended until the temperature of the heating device is increased to the tenth temperature (the upper limit value of the 10 th temperature zone). In some other embodiments, after the sectional temperature rising is finished, if the temperature of the heating device does not meet the temperature control requirement, the target temperature may be reset according to the temperature control requirement, and the heating device may be controlled to continue to rise according to the target temperature.
Fig. 6 is a schematic flow chart of the PLC controlling the heating device to raise the temperature according to the target temperature and the preset algorithm in this embodiment. As shown in fig. 6, the controller may be an upper computer, after the upper computer transmits the preset ten-section heating interval and the final target temperature to the PLC, the PLC may determine the target temperature corresponding to each section according to the heating method in fig. 5, transmit the current-section target temperature to the slope generator to obtain a real-time given temperature, generate a given control value through the PID algorithm, transmit the given control value to the power regulator, and control the heating device such as the heating plate to heat by the power regulator.
Fig. 7 is a graph showing the effect of the temperature increase process of this embodiment compared with that of the conventional temperature increase process. As shown in FIG. 7, the sectional heating effect diagram is obtained by carrying out sectional heating according to the methods shown in FIG. 5 and FIG. 6, compared with the traditional heating effect diagram, in the sectional heating process, as a plurality of temperature intervals are divided, the power regulator accurately heats the heating device to each sectional temperature according to a given control value, and keeps the temperature for a preset time to continue heating after reaching the target sectional temperature each time, the temperature fluctuation generated by PID control hysteresis characteristics is effectively restrained, the accuracy of PID temperature control is enhanced, and the heating efficiency is improved.
It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.
According to another aspect of the embodiments of the present disclosure, as shown in fig. 8, there is also provided a temperature increase control device of a heating device, including:
the data processing module 310 is configured to set a temperature control range of the heating device, generate M temperature intervals according to the temperature control range, and set a corresponding temperature rising rate in each temperature interval;
the first execution module 320 is configured to obtain a current temperature of the heating device, compare the current temperature with each temperature interval, and obtain an initial temperature control parameter N; wherein N represents an nth temperature interval of the M temperature intervals in which the heating device is located, M, N is an integer, and when the current temperature reaches the temperature upper limit value, N is increased by itself according to a preset step size;
and the second execution module 330 is configured to control the heating device to increase the temperature according to the temperature increase rate of the nth temperature interval when N is less than or equal to M.
In one embodiment, as shown in fig. 9, the temperature raising control device further includes a third execution module 340, where the third execution module is configured to control the heating device to keep warm for a preset time.
In one embodiment, the second execution module 330 further includes:
a temperature setting unit, configured to set a temperature upper limit value of the nth temperature interval to a real-time given temperature;
the real-time control unit is used for generating a real-time control value corresponding to the real-time given temperature through a preset algorithm;
and the real-time heating unit is used for controlling the heating device to heat according to the real-time control value.
In one embodiment, the temperature increase control device further includes a fourth execution module for ending the temperature increase if N is greater than M.
The specific limitation of the control device may be referred to above as limitation of the control method, and will not be described herein. According to the control method, the control device can add the first module, the second module and the like to realize the steps in the corresponding method embodiment. The respective modules in the above-described control device may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
According to another aspect of the embodiments of the present disclosure, there is also provided a temperature increase control system of a heating device, which is characterized by including a controller, an actuator, a temperature detector, and a heating device;
the controller is respectively connected with the actuator and the temperature detector and is used for receiving signals sent by the actuator and the detector and sending signals to the actuator;
the actuator is connected with the heating device and is used for adjusting the heating process of the heating device according to the signal sent by the controller;
the temperature detector is connected with the heating device and is used for acquiring the real-time temperature of the heating device.
In one embodiment, the temperature rise control system may be used in a vacuum coating apparatus, and the heating device may be a heating plate of the vacuum coating apparatus. Fig. 10 is a schematic structural diagram of a heating control system of the heating plate, as shown in fig. 10, a controller of the system includes an upper computer 410 and a PLC, wherein the upper computer 410 can be used for inputting a segmented temperature interval and a target temperature, and the PLC can operate the steps in the above method embodiments; the actuator of the system may be a power regulator 420, the detector may be a type K thermocouple 430, and the heating device may be a heater wire 440. In some other embodiments, the actuator may also be a thyristor. The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof.
Claims (10)
1. A temperature increase control method of a heating apparatus, comprising:
s200: setting a temperature control range of a heating device, generating M temperature intervals according to the temperature control range, wherein each temperature interval is provided with a corresponding heating rate;
s220: acquiring the current temperature of the heating device, comparing the current temperature with each temperature interval and obtaining an initial temperature control parameter N; wherein N is an nth temperature interval of the M temperature intervals, the current temperature is lower than a temperature upper limit value of the nth temperature interval, and M, N is an integer;
s240: controlling the heating device to heat according to the heating rate of the Nth temperature interval, stopping heating until the current temperature reaches the temperature upper limit value, and automatically increasing N according to a preset step length;
in case N is less than or equal to M, S240 is repeatedly performed.
2. The method according to claim 1, characterized by, after controlling the heating device to raise the temperature at the temperature raising rate of the nth temperature zone until the current temperature reaches the temperature upper limit value, further comprising:
s260: and controlling the heating device to keep the temperature for a preset time.
3. The method of claim 1, wherein controlling the heating device to increase in temperature at a rate of increase in the nth temperature interval comprises:
setting the temperature upper limit value of the Nth temperature interval as a real-time given temperature;
generating a real-time control value corresponding to the real-time given temperature through a preset algorithm;
and controlling the heating device to heat according to the real-time control value.
4. The method according to claim 1, further comprising, after obtaining a current temperature of the heating device, comparing the current temperature with each temperature interval and obtaining an initial temperature control parameter N:
s230: when N is greater than M, the temperature increase is ended.
5. A temperature increase control device for a heating apparatus, comprising:
the data processing module is used for setting a temperature control range of the heating device, generating M temperature intervals according to the temperature control range, and setting a corresponding heating rate in each temperature interval;
the first execution module is used for obtaining the current temperature of the heating device, comparing the current temperature with each temperature interval and obtaining an initial temperature control parameter N; wherein N represents an nth temperature interval of the M temperature intervals in which the heating device is located, M, N is an integer, and when the current temperature reaches the temperature upper limit value, N is increased by itself according to a preset step size;
and the second execution module is used for controlling the heating device to heat according to the heating rate of the Nth temperature interval under the condition that N is less than or equal to M.
6. The apparatus of claim 5, wherein the device comprises a plurality of sensors,
the heating control device also comprises a third execution module, and the third execution module is used for controlling the heating device to keep warm for a preset time.
7. The apparatus of claim 5, wherein the second execution module further comprises:
a temperature setting unit, configured to set a temperature upper limit value of the nth temperature interval to a real-time given temperature;
the real-time control unit is used for generating a real-time control value corresponding to the real-time given temperature through a preset algorithm;
and the real-time heating unit is used for controlling the heating device to heat according to the real-time control value.
8. The apparatus of claim 5, wherein the warming control apparatus further comprises a fourth execution module for ending warming if N is greater than M.
9. The heating control system of the heating device is characterized by comprising a controller, an actuator, a temperature detector and the heating device;
the controller is respectively connected with the actuator and the temperature detector and is used for receiving signals sent by the actuator and the detector and sending signals to the actuator;
the actuator is connected with the heating device and is used for adjusting the heating process of the heating device according to the signal sent by the controller;
the temperature detector is connected with the heating device and is used for acquiring the real-time temperature of the heating device.
10. The system of claim 9, wherein the actuator is a thyristor or a power regulator.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117666658A (en) * | 2024-01-29 | 2024-03-08 | 太原科技大学 | Industrial equipment temperature control system, method and storage medium based on cloud manufacturing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117666658A (en) * | 2024-01-29 | 2024-03-08 | 太原科技大学 | Industrial equipment temperature control system, method and storage medium based on cloud manufacturing |
| CN117666658B (en) * | 2024-01-29 | 2024-04-12 | 太原科技大学 | Industrial equipment temperature control system, method and storage medium based on cloud manufacturing |
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