CN113929281B - Temperature control method and system for platinum channel in float process - Google Patents
Temperature control method and system for platinum channel in float process Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B18/00—Shaping glass in contact with the surface of a liquid
- C03B18/02—Forming sheets
- C03B18/18—Controlling or regulating the temperature of the float bath; Composition or purification of the float bath
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
- C03B7/005—Controlling, regulating or measuring
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
- C03B7/02—Forehearths, i.e. feeder channels
- C03B7/06—Means for thermal conditioning or controlling the temperature of the glass
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Abstract
A temperature control method of a platinum channel in a float process comprises the following steps: establishing a ring redundant network; the main controller and the standby controller perform data sharing, including: starting a system; initializing; reading data before the system is closed; simultaneously entering a hardware detection and sensor fault judgment step; if the hardware detection is normal, the step S16 is entered, otherwise, the step is circularly executed; s16: executing the automatic climbing temperature rise program to enter S17, otherwise entering S18; s17: inputting curve data; sensor failure proceeds to S16' and S18', otherwise, to S17'; s16': removing a weighting algorithm; s17': data weighted feedback, then enter S18; after all the sensors fail, locking output and closing a weighting algorithm, and then entering step S20; s18: temperature control; a PID algorithm; s20: output adjustment; backing up data; data is shared to the standby controller. The invention has the advantages that: and establishing an annular redundant network, and adopting a weighting algorithm of a sensor fault recognition function, thereby realizing the accurate control of the temperature of the platinum channel in the float process.
Description
Technical Field
The invention relates to temperature control in the field of glass manufacturing, in particular to a temperature control method and a temperature control system for a platinum channel in a float process.
Technical Field
There are three main process technologies for producing glass substrates for flat panel displays, namely "Float Technology" (Float Technology), "flow Down Draw" (Slot Down Draw) and "overflow fusion" (Overflow Fusion Technology). The floating method has the advantages of wider glass products and larger productivity due to the horizontal extension relation, and the overflow melting method has the advantages of controllable surface characteristics, no need of grinding, simpler manufacturing process and the like, but the wide range of the glass production is limited to below 1.5 m, and the productivity is smaller. The floating method can produce glass substrates suitable for various flat panel displays, while the overflow fusion method is currently only applied to the production of TFT-LCD glass substrates,
no matter what process, a platinum channel process is required, and in order to meet the requirements of the market on the large demand and the high generation of the TFT-LCD glass substrate, it is urgent to develop a platinum channel control method suitable for the float process.
Disclosure of Invention
The invention aims to solve the technical problem of providing a temperature control method of a platinum channel in a float process so as to solve the problem of accurate temperature control of the platinum channel in the float process.
The invention solves the technical problems through the following technical scheme:
the embodiment of the invention provides a temperature control method of a platinum channel in a float process, which comprises the following steps:
s1: aiming at the special process requirements of the platinum channel, an annular redundant network is established;
s2: the main controller and the standby controller execute data sharing, and specifically include:
s11: starting a system;
s12: initializing;
s13: reading data before the system is closed;
s14: step S15 and step S15' are simultaneously entered after the start-up procedure;
s15: the main controller and the standby controller perform hardware detection after the system is started, initialized, data before closing are read and a starting program are read, the hardware detection is normal, the step S16 is performed, and otherwise, the step of hardware detection is circularly performed;
step S16: detect whether an automatic ramp up procedure is performed? If so, go to step S17, otherwise go to step S18;
step S17: inputting curve data, and then entering step S18;
s15': detecting whether the sensors of the main controller and the standby controller are faulty, and when the sensors are faulty, proceeding to step S16' and step S18', otherwise proceeding to step S17';
s16': step S17' is carried out after the weighting algorithm is eliminated;
s17': data weighted feedback, then go to step S18;
s18': judging all faults of the sensors, and entering step S19';
s19': locking output and closing the weighting algorithm, and then entering step S20;
step S18: temperature control;
step S19: a PID algorithm;
step S20: output adjustment;
step S21: backing up data;
step S22: the data is shared to the standby controller and then returns to step S14.
As an optimized technical scheme, the steps for establishing the annular redundant network are as follows:
the method comprises the steps of connecting a main controller, a first management switch, a first interface module, a second interface module, a sixth interface module, a second management switch and a standby controller end to end through a standard industrial Ethernet, then connecting the main controller and the standby controller to form a ring redundant network, connecting a first PC to the first management switch, connecting a second PC to the second management switch, connecting a power controller to the main controller and a fourth interface module respectively, wherein the first management switch is the management switch of the main controller of the control system, the second management switch is the management switch of the standby controller of the control system, the first interface module, the second interface module, the third interface module, the sensor module of the main controller of the control system, the sensor module of the standby controller, the power unit of the control system, the heating and the cooling of a platinum channel of the float process, and the upper computer of the control system, and the control system.
As an optimized technical scheme, each sensor of the main controller is adjacent to each sensor of the standby controller in installation space.
As an optimized technical scheme, after any one of the first to third interface modules is interrupted, the main controller can read the sensor data collected and converted by the first to third interface modules from another industrial ethernet loop;
after any one of the fourth to sixth interface modules is interrupted, the standby controller can read the sensor data acquired and converted by the fourth to sixth interface modules from another industrial Ethernet loop;
after the industrial Ethernet is interrupted between the main controller and the standby controller, the main controller and the standby controller can execute data sharing from another industrial Ethernet loop.
As an optimized technical scheme, the data sharing program is respectively embedded into the main controller and the standby controller, wherein the data priority of the main controller is higher than that of the standby controller, namely, when the main controller works normally, the control data of the standby controller come from the main controller, and meanwhile, the standby controller is in a hot standby state, and when the main controller cannot work normally, the standby controller is automatically switched from the hot standby state to a working state, and the standby controller takes over the whole control system.
As an optimized solution, when the program is executed to step S21: when the backup controller detects that the main controller cannot work normally, namely, no backup data from the main controller exists, the backup controller automatically switches to a working state and takes over the whole control system.
As an optimized technical solution, in step S15', detecting whether the sensors of the main controller and the standby controller are faulty, specifically includes: setting sensor range low-limit data and high-limit data in the main controller and the standby controller, and considering that the sensor fails when the sensor data acquired and converted by the sensor module are not in the range of the sensor range low-limit data and the high-limit data, or equal to the sensor range low-limit data, or equal to the high-limit data; meanwhile, a sensor data fixed sampling and storage beat is set in the main controller and the standby controller, and when two data deviation values of the same sensor continuously sampled and stored exceed a set allowable deviation value, the sensor is considered to be faulty.
As an optimized technical solution, in the step S16', a weighting algorithm with a sensor fault recognition function includes:
according to the process control requirement, at least all sensors containing the process requirement are freely set according to the process requirement, after each set of the weight coefficients is completed, the weight proportion of each sensor is calculated according to the weight coefficients and stored in a weighting algorithm program block, when one or more sensors are judged to be faulty, the faulty sensor is automatically kicked out of the weighting algorithm, and meanwhile the weight coefficients of the faulty sensor are reassigned to the weight coefficients of other sensors according to the calculated weight proportion of each sensor.
As an optimized technical solution, the step S19' specifically includes: when step S15' determines that all the temperature sensors are faulty, a control lock signal is output, and the weighting algorithm is turned off, and the control lock signal directs the temperature control program to lock the control output.
As an optimized technical solution, in step S18, temperature control ensures stable temperature rise and fall within an adjustment range, and no large-scale abrupt temperature adjustment occurs, including:
temperature control of a fixed step length or a fixed step number, wherein the fixed step length refers to heating or cooling according to a fixed amplitude when temperature adjustment is carried out every time, the fixed step number refers to heating or cooling according to a fixed step number in a specified time, and each step amplitude of the fixed step number is calculated by dividing the total heating or cooling amplitude by the total step number;
in step S16, an automatic climbing procedure is implemented to realize full-automatic heating and cooling of the system, including:
the full-automatic climbing program is started to automatically perform heating or cooling according to the recorded heating or cooling curve.
The invention has the advantages that:
1. establishing a ring redundant network: after any one of the interface modules 1 to 3 is interrupted in the Profinet industrial ethernet, the PLC (master controller) can read the sensor data collected and converted by the interface modules 1 to 3 from another Profinet industrial ethernet loop; after any one of the interface modules 4 to 6 is interrupted in the Profinet industrial ethernet, the PLC (standby controller) can read the sensor data collected and converted by the interface modules 4 to 6 from another Profinet industrial ethernet loop; after the Profinet industrial ethernet between the PLC (master controller) and the PLC (standby controller) is interrupted, the PLC (master controller) and the PLC (standby controller) can perform data sharing from another Profinet industrial ethernet loop;
2. the weighting algorithm of the sensor fault recognition function comprises at least all sensors of the process requirement according to the process control requirement, wherein each sensor weight coefficient can be freely set according to the process requirement, after each set of the weight coefficient is completed, the weight proportion of each sensor is calculated according to the weight coefficient and stored in a weighting algorithm program block, when one or more sensors are judged to be faulty, the faulty sensor is automatically kicked out of the weighting algorithm, and meanwhile, the weight coefficient of the faulty sensor is redistributed to the weight coefficients of other sensors according to the calculated weight proportion of each sensor, so that the reliability and stability of an output result are ensured;
3. a temperature control program for determining step length or step number ensures that the temperature is stably lifted in an adjusting range and does not have large-amplitude abrupt temperature adjustment;
4. full-automatic climbing procedure realizes full-automatic heating and cooling of the system without manual intervention.
Thereby realizing the accurate control of the temperature of the platinum channel in the float process.
Drawings
FIG. 1 is a diagram of a system ring redundancy network established in an embodiment of the present invention;
FIG. 2 is a flow chart of data sharing in an embodiment of the present invention;
fig. 3 is a display interface diagram of a fully automatic hill climbing procedure.
Detailed Description
The following describes in detail the examples of the present invention, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of protection of the present invention is not limited to the following examples.
Example 1
The invention provides a temperature control method of a platinum channel in a float process, which comprises the following steps:
s1: aiming at the special process requirement of a platinum channel, an annular redundant network is established, which comprises the following steps:
fig. 1 is a diagram of a system ring redundancy network, as shown in fig. 1, a PLC (master controller), a first management switch, an interface module 1, an interface module 2, an interface module 3, an interface module 4, an interface module 5, an interface module 6, a second management switch, and a PLC (standby controller) are connected end to end through a standard industrial ethernet, and then the PLC (master controller) and the PLC (standby controller) are connected to form a ring redundancy network. The first PC is connected to the first management switch and the second PC is connected to the second management switch. The power controllers are connected to a PLC (master controller) and an interface module 4, respectively.
The PLC (master controller) is a control system master controller, the PLC (backup controller) is a control system backup controller, the first management switch is a management switch of the control system master controller, the second management switch is a management switch of the control system backup controller, the interface modules 1 to 3 are sensor modules of the control system master controller and are responsible for collecting and converting sensor data of the master controller, the interface modules 4 to 6 are sensor modules of the control system backup controller and are responsible for collecting and converting sensor data of the backup controller, wherein the sensors of the master controller are adjacent to the sensors of the backup controller in installation space, the power controller is a control system power unit and is responsible for heating and cooling a float process platinum channel, and the first PC and the second PC are upper computers of the control system and realize control parameter setting and system state monitoring of a temperature control system of the float process platinum channel.
The PLC (master controller) reads and controls the parameters of the power controller via the Profinet industrial ethernet and the PLC (slave controller) reads and controls the parameters of the power controller via the second management switch and interface module 4.
The establishment of the annular redundant network has the following advantages and effects: 1. after any one of the interface modules 1 to 3 is interrupted in the Profinet industrial ethernet, the PLC (master controller) can read the sensor data collected and converted by the interface modules 1 to 3 from another Profinet industrial ethernet loop;
2. after interruption of the Profinet industrial ethernet by any one of the interface modules 4 to 6, the PLC (standby controller) can read the sensor data acquired and converted by the interface modules 4 to 6 from the other Profinet industrial ethernet loop.
3. After the Profinet industrial ethernet is interrupted between the PLC (master controller) and the PLC (standby controller), the PLC (master controller) and the PLC (standby controller) can perform data sharing from another Profinet industrial ethernet loop.
S2: the PLC (master controller) and the PLC (standby controller) perform data sharing, including:
on the basis of the annular redundant network, a complete network system is established for the temperature control system of the float process platinum channel, process data and control data are respectively in a PLC (master controller) and a PLC (standby controller), and a data sharing program is respectively embedded into the PLC (master controller) and the PLC (standby controller), wherein the data priority of the PLC (master controller) is higher than that of the PLC (standby controller), namely when the PLC (master controller) works normally, the control data of the PLC (standby controller) come from the PLC (master controller), and meanwhile the PLC (standby controller) is in a hot standby state. When the PLC (master controller) cannot work normally, the PLC (standby controller) is automatically switched from a hot standby state to a working state, and the PLC (standby controller) takes over the whole control system.
Fig. 2 is a flow chart of data sharing, and the data sharing process specifically includes the following steps:
s11: starting a system;
s12: initializing;
s13: reading data before the system is closed;
s14: step S15 and step S15' are simultaneously entered after the start-up procedure;
s15: the PLC (master controller) and the PLC (standby controller) perform hardware detection after the system is started, initialized, data before closing are read and a starting program are read, the hardware detection is normal, the step S16 is performed, and otherwise, the step of hardware detection is circularly performed;
step S16: detect whether an automatic ramp up procedure is performed? If so, go to step S17, otherwise go to step S18;
step S17: inputting curve data, and then entering step S18;
s15': detecting whether sensors of the PLC (master controller) and the PLC (standby controller) are faulty, and when the sensors are faulty, proceeding to step S16' and step S18', otherwise proceeding to step S17';
s16': step S17' is carried out after the weighting algorithm is eliminated;
s17': data weighted feedback, then go to step S18;
s18': judging all faults of the sensors, and entering step S19';
s19': locking output and closing the weighting algorithm, and then entering step S20;
step S18: temperature control;
step S19: a PID algorithm;
step S20: output adjustment;
step S21: backing up data;
step S22: the data is shared to the PLC (standby controller), and then returns to step S14.
The above data sharing process is simultaneously executed on both the PLC (main controller) and the PLC (standby controller), and when the program is executed to step S21: when the PLC (standby controller) detects that the PLC (main controller) cannot work normally, namely, the PLC (standby controller) does not have the backup data from the PLC (main controller), the PLC (standby controller) automatically switches to a working state to take over the whole control system.
In the above step S15', detecting whether the sensors of the PLC (main controller) and the PLC (standby controller) are malfunctioning, specifically includes: setting sensor range low limit data and high limit data in a PLC (master controller) and a PLC (standby controller), and considering that the sensor fails when the sensor data acquired and converted by the sensor module is not in the range of the sensor range low limit data and the high limit data, or is equal to the sensor range low limit data, or is equal to the high limit data; meanwhile, a sensor data fixed sampling and storage beat is set in a PLC (master controller) and a PLC (standby controller), and when two data deviation values continuously sampled and stored by the same sensor exceed a set allowable deviation value, the sensor is considered to be faulty.
In the step S16', the weighting algorithm with the sensor fault recognition function includes:
according to the process control requirement, at least all sensors containing the process requirement are arranged freely, after each set of the weight coefficients is completed, the weight proportion of each sensor is calculated according to the weight coefficients and stored in a weighting algorithm program block, when one or more sensors are judged to be faulty, the faulty sensor is automatically kicked out of the weighting algorithm, and meanwhile the weight coefficients of the faulty sensor are redistributed to the weight coefficients of other sensors according to the calculated weight proportion of each sensor, so that the reliability and stability of an output result are ensured.
The step S19' specifically includes: when step S15' determines that all the temperature sensors are faulty, a control lock signal is output, and the weighting algorithm is turned off, and the control lock signal directs the temperature control program to lock the control output.
Specifically, take the following basic formula containing 6 sensors as an example:
#Weight_Temperature:＝((#TE_input1*#TE1_Weight_Ratio)+(#TE_input2*#TE2_Weight_Ratio)+(#TE_input3*#TE3_Weight_Ratio)+(#TE_input4*#TE4_Weight_Ratio)+(#TE_input5*#TE5_Weight_Ratio)+(#TE_input6*#TE6_Weight_Ratio))/(#TE1_Weight_Ratio+#TE2_Weight_Ratio+#TE3_Weight_Ratio+#TE4_Weight_Ratio+#TE5_Weight_Ratio+#TE6_Weight_Ratio)；
description of the formula:
# weight_temperature: weighting algorithm and outputting data
# TE_Input1: sensor data 1
…
# TE_Input6: sensor data 6
Sensor 1 Weight coefficient, # TE1 Weight Ratio
…
Sensor 6 Weight coefficient, # TE6 Weight Ratio
When the sensors 1 to 6 are normal and the weight coefficients of the sensors 1 to 6 are set, the weighting algorithm outputs output data after the weighting algorithm according to a basic formula, and when one or more faults exist in the sensors 1 to 6, the weighting algorithm automatically resets the corresponding sensor weight coefficients to zero, and simultaneously, the weight coefficients before the zero are reassigned to other sensor weight coefficients according to the weight proportion of each sensor.
In step S18, temperature control ensures stable temperature rise and fall within an adjustment range, and no large-scale abrupt temperature adjustment occurs, including:
the temperature control of the fixed step length or the fixed step number is carried out, the fixed step length refers to that the temperature is increased or decreased according to a fixed amplitude when the temperature is adjusted every time, the fixed step number refers to that the temperature is increased or decreased according to a fixed step number in a specified time, and each step amplitude of the fixed step number is calculated by dividing the total temperature increasing or decreasing amplitude by the total step number.
In step S16, an automatic climbing procedure is implemented to realize full-automatic heating and cooling of the system, including:
the full-automatic climbing program has the function of recording temperature rise or temperature reduction curve data, the recorded temperature rise or temperature reduction curve data are stored in a Programmable Logic Controller (PLC), when the temperature rise or temperature reduction curve data are recorded and stored, the full-automatic climbing program automatically calculates the temperature rise/temperature reduction speed, the time and the residual time according to the curve data, and as shown in fig. 3, the full-automatic climbing program is started, and the program automatically heats or reduces the temperature according to the recorded temperature rise or temperature reduction curve without manual intervention.
The temperature rise or fall curve data includes: the starting temperature and the target temperature of the curve, and the length of time between the starting temperature and the target temperature.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A temperature control method of a platinum channel in a float process is characterized by comprising the following steps: comprising the following steps:
s1: aiming at the special process requirements of the platinum channel, an annular redundant network is established;
s2: the main controller and the standby controller execute data sharing, and specifically include:
s11: starting a system;
s12: initializing;
s13: reading data before the system is closed;
s14: step S15 and step S15' are simultaneously entered after the start-up procedure;
s15: the main controller and the standby controller perform hardware detection after the system is started, initialized, data before closing are read and a starting program are read, the hardware detection is normal, the step S16 is performed, and otherwise, the step of hardware detection is circularly performed;
step S16: detect whether an automatic hill climbing procedure is performed? If yes, entering a step S17, otherwise entering a step S18, wherein the automatic climbing program realizes full-automatic heating and cooling of the system;
step S17: inputting curve data, and then entering step S18;
s15': detecting whether the sensors of the main controller and the standby controller are faulty, and when the sensors are faulty, proceeding to step S16' and step S18', otherwise proceeding to step S17';
s16': step S17' is carried out after a weighting algorithm with a sensor fault recognition function;
s17': data weighted feedback, then go to step S18;
s18': judging all faults of the sensors, and entering step S19';
s19': locking output and closing the weighting algorithm, and then entering step S20;
step S18: temperature control;
step S19: a PID algorithm;
step S20: output adjustment;
step S21: backing up data;
step S22: the data sharing is carried out to the standby controller, and then the step S14 is returned;
the steps for establishing the annular redundant network are as follows:
the method comprises the steps that a main controller, a first management switch, a first interface module, a second interface module, a sixth interface module, a standby controller are connected end to end through a standard industrial Ethernet, then the main controller and the standby controller are connected to form a ring redundant network, a first PC is connected to the first management switch, a second PC is connected to the second management switch, a power controller is respectively connected to the main controller and a fourth interface module, the first management switch is the management switch of the main controller of the control system, the second management switch is the management switch of the standby controller of the control system, the first interface module, the second interface module, the third interface module, the sensor module of the main controller of the control system, the sensor module of the standby controller, the power unit of the control system, the heating and the cooling of a float process platinum channel, the first PC and the second PC are upper computers of the control system, and control parameters of the temperature control system of the float process platinum channel and system state monitoring are realized;
wherein each sensor of the main controller is adjacent to each sensor of the standby controller in installation space;
after any one of the first to third interface modules is interrupted, the main controller can read the sensor data collected and converted by the first to third interface modules from another industrial Ethernet loop;
after any one of the fourth to sixth interface modules is interrupted, the standby controller can read the sensor data acquired and converted by the fourth to sixth interface modules from another industrial Ethernet loop;
after the industrial Ethernet between the main controller and the standby controller is interrupted, the main controller and the standby controller can execute data sharing from another industrial Ethernet loop;
the data sharing program is respectively embedded into the main controller and the standby controller, wherein the data priority of the main controller is higher than that of the standby controller, namely, when the main controller works normally, the control data of the standby controller comes from the main controller, and meanwhile, the standby controller is in a hot standby state, and when the main controller cannot work normally, the standby controller is automatically switched to a working state from the hot standby state, and the standby controller takes over the whole control system.
2. The method for controlling the temperature of a platinum channel in a float process according to claim 1, wherein: when the program is executed to step S21: when the backup controller detects that the main controller cannot work normally, namely, no backup data from the main controller exists, the backup controller automatically switches to a working state and takes over the whole control system.
3. The method for controlling the temperature of a platinum channel in a float process according to claim 1, wherein: in the step S15', detecting whether the sensors of the main controller and the standby controller are faulty, specifically includes: setting sensor range low-limit data and high-limit data in the main controller and the standby controller, and considering that the sensor fails when the sensor data acquired and converted by the sensor module are not in the range of the sensor range low-limit data and the high-limit data, or equal to the sensor range low-limit data, or equal to the high-limit data; meanwhile, a sensor data fixed sampling and storage beat is set in the main controller and the standby controller, and when two data deviation values of the same sensor continuously sampled and stored exceed a set allowable deviation value, the sensor is considered to be faulty.
4. The method for controlling the temperature of a platinum channel in a float process according to claim 1, wherein: in the step S16', the weighting algorithm with the sensor fault recognition function includes:
according to the process control requirement, at least all sensors containing the process requirement are freely set according to the process requirement, after each set of the weight coefficients is completed, the weight proportion of each sensor is calculated according to the weight coefficients and stored in a weighting algorithm program block, when one or more sensors are judged to be faulty, the faulty sensor is automatically kicked out of the weighting algorithm, and meanwhile the weight coefficients of the faulty sensor are reassigned to the weight coefficients of other sensors according to the calculated weight proportion of each sensor.
5. The method for controlling the temperature of a platinum channel in a float process according to claim 1, wherein: the step S19' specifically includes: when step S15' determines that all the temperature sensors are faulty, a control lock signal is output, and the weighting algorithm is turned off, and the control lock signal directs the temperature control program to lock the control output.
6. The method for controlling the temperature of a platinum channel in a float process according to claim 1, wherein: in step S18, temperature control ensures stable temperature rise and fall within an adjustment range, and no large-scale abrupt temperature adjustment occurs, including:
the temperature control of the fixed step length or the fixed step number is carried out, the fixed step length refers to that the temperature is increased or decreased according to a fixed amplitude when the temperature is adjusted every time, the fixed step number refers to that the temperature is increased or decreased according to a fixed step number in a specified time, and each step amplitude of the fixed step number is calculated by dividing the total temperature increasing or decreasing amplitude by the total step number.
7. The method for controlling the temperature of a platinum channel in a float process according to claim 6, wherein:
in step S16, an automatic climbing procedure is implemented to realize full-automatic heating and cooling of the system, including:
the automatic climbing program is started to automatically perform heating or cooling according to the recorded heating or cooling curve.
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