CN107957185B - Heating control system and method of drying equipment and drying equipment - Google Patents
Heating control system and method of drying equipment and drying equipment Download PDFInfo
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- CN107957185B CN107957185B CN201610909175.3A CN201610909175A CN107957185B CN 107957185 B CN107957185 B CN 107957185B CN 201610909175 A CN201610909175 A CN 201610909175A CN 107957185 B CN107957185 B CN 107957185B
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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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Abstract
The invention provides a heating control system and method of drying equipment and the drying equipment. The acquisition unit is arranged in the drying equipment and can detect the real-time heating rate and the real-time temperature value of the heated piece in the drying equipment and the real-time heating temperature of the heating system of the drying equipment. The fuzzy control unit is connected with the acquisition unit and can determine a heating temperature set value of a heating system of the drying equipment according to the data measured by the acquisition unit. The PID control unit is connected with the fuzzy control unit and the heating system at the same time, and the PID control unit can control the heating system according to the heating temperature set value output by the fuzzy control unit. The temperature rise control system can expand the application range, improve the product quality and reduce the cost.
Description
Technical Field
The invention relates to the technical field of drying equipment, in particular to a heating control system and method of drying equipment and the drying equipment.
Background
The insulating part of the transformer is an important part in the transformer, and special drying equipment is required to be used for drying the insulating part in order to improve the insulating performance of the insulating part, wherein the hot air circulation drying equipment is common drying equipment. The existing hot air circulation drying equipment generally comprises a heating system, a hot air circulation system and a control system, circulating air flow is generated through the hot air circulation system, the air flow is heated through the heating system, the heated air flow, namely hot air, is used for heating the insulating part, the insulating part is dried, and the heating temperature is controlled by the control system. In the prior art, when heating, if the heating rate of the heated insulating piece is too high, the insulating piece is easy to crack, and the product quality of the transformer is affected. However, if the heating is too slow, a lot of time and energy are consumed, and the cost is increased. It is necessary to heat the insulating member at a specific temperature rising rate until a predetermined temperature rising value is reached and then to shift to a heat-retaining stage.
Currently, a method of constantly controlling the temperature of a space or the temperature of a heating medium is generally used in a hot air circulation drying apparatus, thereby indirectly heating an insulating member. However, this method has difficulty in ensuring that the insulating member is heated at a constant temperature rising rate. In the prior art, a method for controlling the temperature rising rate by taking the space temperature as a control object is also available, so that the space temperature is raised according to a preset rate, but the method can lead to more temperature hysteresis of an insulating part, so that the temperature rising rate of the insulating part is seriously deviated, and the heating time is prolonged. In addition, there is a method in which the temperature rise rate of the insulating material is controlled by intermittent heating, but the overshoot is often serious in the later heating period, and the heating time is long, and when heating other insulating materials or other heated materials other than the insulating material, the control system cannot adaptively adjust, and the temperature deviation is serious, and the temperature cannot rise at the fastest rate at a specific temperature rise rate. Therefore, how to expand the application range, improve the product quality and reduce the cost is a technical problem to be solved.
The above information disclosed in the background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a heating control system and method of drying equipment and the drying equipment, wherein the heating control system and method can expand the application range, improve the product quality and reduce the cost.
According to one aspect of the present invention, a temperature increase control system of a drying apparatus includes:
the collecting unit is arranged on the drying equipment and can detect the real-time heating rate and the real-time temperature value of a heated piece in the drying equipment and the real-time heating temperature of a heating system of the drying equipment;
the fuzzy control unit is connected with the acquisition unit and can determine a heating temperature set value of a heating system of the drying equipment according to the data measured by the acquisition unit;
and the PID control unit is connected with the fuzzy control unit and the heating system at the same time, and can control the heating system according to the heating temperature set value output by the fuzzy control unit.
According to an embodiment of the present invention, the collecting unit includes a first comparing module, the real-time heating rate collected by the collecting unit is input to the first comparing module, a predetermined heating rate is also input to the first comparing module, the first comparing module compares and outputs a first difference value to the fuzzy control unit, and the fuzzy control unit determines a heating temperature set value of the heating system according to the first difference value.
According to an embodiment of the present invention, the collecting unit includes a second comparing module, the real-time temperature value collected by the collecting unit is input to the second comparing module, the real-time heating temperature is also input to the second comparing module, the second comparing module compares and outputs a second difference value to the fuzzy control unit, and the fuzzy control unit determines the heating temperature set value of the heating system according to the second difference value.
According to an embodiment of the present invention, the collecting unit includes a detection module, which is mounted to the drying apparatus, and is capable of detecting the real-time heating rate, the real-time temperature value, and the real-time heating temperature.
According to an embodiment of the present invention, the fuzzy control unit includes:
the fuzzy control module is connected with the acquisition unit and can determine a temperature adjustment value according to the data measured by the acquisition unit;
and the amplitude limiting control module is connected with the fuzzy control module and the PID control unit at the same time, and can limit the temperature adjustment value within a preset range to obtain a heating temperature set value and send the heating temperature set value to the PID control unit.
According to an embodiment of the present invention, the PID control unit includes:
the third comparison module is connected with the fuzzy control unit and can calculate the temperature control quantity according to the heating temperature set value and the real-time heating temperature;
and the PID controller is simultaneously connected with the third comparison module and the heating system, and can calculate a temperature control value according to the temperature control quantity and adjust the heating temperature of the heating system according to the temperature control value.
According to an embodiment of the present invention, the fuzzy control unit and the PID controller are integrated within the same PLC.
According to another aspect of the present invention, a temperature increase control method of a drying apparatus includes the steps of:
detecting the real-time heating rate and the real-time temperature value of a heated piece in the drying equipment and the real-time heating temperature of a heating system of the drying equipment;
determining a heating temperature set point of a heating system of the drying apparatus based on the measured data;
and controlling a heating system of the drying equipment according to the heating temperature set value.
According to an embodiment of the invention, the determining the heating temperature set point of the heating system of the drying apparatus based on the measured data comprises: the heating temperature set point is defined within a predetermined range.
According to still another aspect of the present invention, a drying apparatus includes a heating system and a hot air circulation system, and further includes the above heating control system, the heating system includes a heating calandria and a heating device for heating the heating calandria, the heating device is connected with the PID control unit, the hot air circulation system includes a housing and a fan, an air duct is formed on an inner wall of the housing, the heating calandria is disposed in the air duct, the fan is used for supplying air into the air duct, and the air duct is provided with an air outlet.
According to the technical scheme, the invention has at least one of the following advantages and positive effects: the real-time heating temperature of the drying equipment can be acquired in real time through the acquisition unit, and the real-time heating rate and the real-time temperature value of the heated piece are acquired; and determining a heating temperature set value of a heating system of the drying equipment according to the measured data through a fuzzy control unit, and controlling the real-time heating temperature of the heating system of the drying equipment in real time by the PID control unit according to the heating temperature set value. In the process, the real-time heating temperature set value of the heating system can be finally determined through the real-time heating temperature, the real-time heating rate and the real-time temperature value which are acquired in real time, so that the heating system can be dynamically controlled in real time, and the heated piece can be heated at a specific heating rate conveniently; and when the heated part changes, the real-time heating temperature, the real-time heating rate and the real-time temperature value of the new heated part can be acquired in real time, so that the heated part can be regulated at a specific heating rate, the application range is enlarged, and meanwhile, the heating rate is ensured, the product quality is improved, and the cost is reduced.
Drawings
The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
FIG. 1 is a schematic block diagram of one embodiment of a temperature increase control system of the present invention;
FIG. 2 shows a heating temperature set point T of the heating control system of the present invention 5 Schematic representation of a predetermined range of (2);
FIG. 3 is a flow chart of the temperature increase control method of the present invention;
FIG. 4 is a schematic view of the heating system of the drying apparatus of the present invention;
fig. 5 is a schematic view of a hot air circulation system of the drying apparatus of the present invention.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.
The term "comprising" is used to mean that there are one or more elements/components/etc.; the term "comprising" is used to mean open-ended and means that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and "third," etc. are used merely as labels, and do not limit the number of their objects.
Referring to fig. 1, fig. 1 is a schematic block diagram of an embodiment of a temperature increase control system according to the present invention. The temperature increase control system according to the present embodiment includes: the device comprises an acquisition unit 1, a fuzzy control unit 2 and a PID control unit 3. The acquisition unit 1 is arranged on the drying equipment, the fuzzy control unit 2 is connected with the acquisition unit 1, and the PID control unit 3 is connected with the fuzzy control unit 2.
In the present embodiment, the acquisition unit 1 includes a detection module 101, a first comparison module 102, and a second comparison module 103.
The detection module 101 is mounted on the drying apparatus and can detect the real-time temperature rise rate V 2 Real-time temperature value T 2 And the real-time heating temperature T of the heating system of the drying device 3 ；
The detection module 101 may specifically employ a temperature sensor, a detector for detecting a temperature rise rate, or the like, but is not limited thereto.
Real-time temperature rise rate V 2 For the real-time detected rate of temperature rise of the heated member, a real-time temperature value T 2 For detecting the temperature value of the heated member in real time, heating the temperature T in real time 3 The real-time temperature of the heating medium of the drying apparatus for heating may be the real-time temperature of the heating medium of the drying apparatus for heating. The heating medium can be a heatable liquid such as heat conducting oil.
In the present embodiment, the first comparing module 102 receives the real-time temperature rise rate V transmitted from the detecting module 101 2 A predetermined temperature rise rate V of the heated member 1 And a predetermined temperature rise value T 1 The first comparison module 102 can calculate the real-time temperature rise rate V 2 And a predetermined temperature rise rate V 1 I.e. the first difference Δv, and sends the first difference Δv to the fuzzy control unit 2; the first comparison module 102 may employ a comparator or other computable meansMeans for a first difference Δv.
In the present embodiment, the second comparing module 103 receives the real-time heating temperature T sent by the detecting module 101 3 And a real-time temperature value T 2 And the second comparison module 103 can calculate the real-time heating temperature T 3 And a real-time temperature value T 2 Is the second difference DeltaT 1 And the second difference delta T 1 To the fuzzy control unit 2. The second comparison module 103 may employ a comparator or other device capable of calculating the first difference DeltaT 1 Is provided.
In this embodiment, the fuzzy control unit 2 includes a fuzzy control module 201 and a clipping control module 202, the first comparison module 102 and the second comparison module 103 of the acquisition unit 1 are both connected to the fuzzy control module 201, and the clipping control module 202 is connected to both the fuzzy control module 201 and the PID control unit 3.
In this embodiment, the fuzzy control module 201 may include a fuzzy calculation module (not shown) and an addition control module (not shown), and the fuzzy calculation module may calculate the first difference DeltaV and the second difference DeltaT according to the first difference DeltaV and the second difference DeltaT 1 Determining a temperature adjustment amount delta T according to the fuzzy control rule table 2 The addition control module can adjust the temperature delta T 2 Adding the temperature setting value with the heating temperature setting value of the previous temperature control period to obtain a temperature adjustment value T 4 And adjust the temperature to a value T 4 And sent to the clipping control module 202 for subsequent processing.
In the present embodiment, the fuzzy control rule table is as follows:
the following exemplifies a specific procedure of the fuzzy control unit 2:
in the above table, when the first difference DeltaV is a negative large gear, the second difference DeltaT 1 Temperature adjustment amount DeltaT in negative or zero shift 2 For the positive gear, a value corresponding to the positive gear can be preset, and the fuzzy control unit 2 can adjust the temperature by an amount delta T 2 Set to the predeterminedThe temperature adjustment amount DeltaT 2 And the heating temperature set value of the previous temperature control period are summed and calculated to obtain a temperature adjustment value T 4 ；
When the first difference DeltaV is zero gear, the second difference DeltaT 1 Temperature adjustment amount DeltaT during middle gear 2 For zero gear, the fuzzy control unit 2 can adjust the temperature by an amount of delta T 2 Setting to "0", and adjusting the temperature adjustment amount DeltaT without adjustment 2 And the heating temperature set value of the previous temperature control period are summed and calculated to obtain a temperature adjustment value T 4 ；
When the first difference DeltaV is a positive gear, the second difference DeltaT 1 When the gear is in the small gear, the temperature is adjusted by the value delta T 2 For the negative middle gear, a numerical value corresponding to the negative middle gear can be preset, and the fuzzy control unit 2 can adjust the temperature to a value T 4 Setting the temperature adjustment amount delta T to the predetermined value 2 And the heating temperature set value of the previous temperature control period are summed and calculated to obtain a temperature adjustment value T 4 。
When the first difference DeltaV and the second difference DeltaT 1 For other gear in the above table, the fuzzy control unit 2 determines the temperature adjustment amount Δt 2 And a temperature adjustment value T 4 The process of (2) may refer to the above process, and will not be described herein.
In the present embodiment, the clipping control module 202 receives the temperature adjustment value T 4 Can adjust the temperature to a value T 4 Is limited in a preset range to obtain a heating temperature set value T 5 And will heat the temperature set point T 5 To the PID control unit 3.
Referring to fig. 2, fig. 2 is a heating temperature set point T of the temperature increase control system of the present invention 5 Schematic of the predetermined range of (2). In FIG. 2, the horizontal axis represents time T and the vertical axis represents heating temperature set point T 5 . In the present embodiment, the heating temperature set point T 5 And the heating efficiency is improved by limiting the heating temperature within a preset range and dynamically controlling the amplitude limiting, so that the phenomenon of overshoot or serious hysteresis of heating is avoided. T in FIG. 2 52 And T 51 Respectively show the heating temperature set point T 5 Upper and lower limits of T 51 And T 52 The middle shadow area is the temperature adjustment value T 5 The limit amplitude is dynamically adjusted along with the change of time and temperature, the change trend is predicted in advance and adjusted, and the adjustment time is greatly shortened. T (T) 50 T is an ideal temperature rise curve for heating temperature 20 The two ideal curves are reference curves for dynamic amplitude limiting adjustment, which are ideal temperature rising curves of the heated piece 15. When the real-time temperature value T 2 Reaching a predetermined temperature rise value T 1 Then the constant temperature control is carried out, and the heating temperature is set at the set value T 5 Upper limit T of (2) 52 And lower limit T 51 Is fixed and is not dynamically adjusted.
In the present embodiment, the PID control unit 3 includes: the third comparison module 301 and the PID controller 302, the third comparison module 301 is connected with the amplitude limiting control module 202 of the fuzzy control unit 2, and the PID controller 302 is connected with the third comparison module 301 and the heating system at the same time.
In this embodiment, the third comparison module 301 can receive the real-time heating temperature T 3 Heating temperature set point T 5 And setting a value T for the heating temperature 5 And a real-time heating temperature value T 3 Calculating to obtain the difference between the two, i.e. the temperature control quantity delta T 3 And the temperature control amount DeltaT 3 To the PID controller 302;
in the present embodiment, the PID controller 302 can control the amount DeltaT according to the temperature 3 And obtaining a temperature control value U through PID operation, and controlling the heating system to adjust the temperature of a heating medium according to the temperature control value U.
Referring to fig. 3, fig. 3 is a flowchart of a temperature increase control method of the present invention, the temperature increase control method of the drying apparatus including the steps of:
s1, detecting real-time heating temperature T of heating system of drying equipment 3 Real-time temperature rise rate V of heated member 2 And a real-time temperature value T 2 ；
S2, determining a heating temperature set value T of a heating system of the drying equipment according to the measured data 5 ；
Referring to fig. 2, in the present embodiment, the first differenceValue DeltaV and second difference DeltaT 1 Determining a temperature adjustment amount DeltaT according to a predetermined fuzzy control rule table 2 Temperature adjustment value T 4 And a heating temperature set point T 5 ；
The step S2 comprises the following steps:
the first difference DeltaV and the second difference DeltaT can be calculated according to the measured data 1 Wherein the first difference DeltaV is the real-time temperature rise rate V 2 With a predetermined temperature rise rate V 1 Is the difference of the second difference delta T 1 For heating temperature T in real time 3 And a real-time temperature value T 2 Is a difference in (2); at the same time, a predetermined temperature rise value T can be obtained 1 So as to switch from the temperature-raising control at a predetermined rate to the heat-preserving control;
according to the first difference DeltaV and the second difference DeltaT 1 Determining a temperature adjustment amount DeltaT according to a predetermined fuzzy control rule table 2 ；
Adjusting the temperature by an amount DeltaT 2 And the temperature value of the heating medium in the last temperature control period is summed and calculated to obtain a temperature adjustment value T 4 。
Adjusting the temperature to a value T 4 Is limited in a predetermined range, thereby obtaining a heating temperature set point T within the predetermined range 5 . The phenomenon of overshoot or serious hysteresis of heating can be avoided, and the heating efficiency is improved.
S3, according to the heating temperature set value T 5 And controlling a heating system of the drying equipment. The step S3 comprises the following steps:
according to the heating temperature set value T 5 And a real-time heating temperature T 3 Calculating to obtain the difference between the two, i.e. the temperature control quantity delta T 3 And the temperature control amount DeltaT 3 To the PID controller 302;
according to the temperature control quantity DeltaT 3 And obtaining a temperature control value U through PID operation, and controlling the heating system to adjust the temperature of a heating medium according to the temperature control value U.
Referring to fig. 1, 4 and 5, fig. 4 is a schematic view of a heating system of the drying apparatus of the present invention, fig. 5 is a schematic view of a hot air circulation system of the drying apparatus of the present invention, and arrows in fig. 5 indicate air flow directions. The drying equipment of this embodiment includes heating system, hot air circulation system, still includes the heating control system of any of the above-mentioned embodiments, heating system includes heating calandria 4 and the heating device 5 that heats for heating calandria 4, and heating calandria 4 includes a plurality of pipelines that set up side by side and communicate, and heating device 5 is connected with PID control unit 3, hot air circulation system includes casing 6 and fan 7, is formed with wind channel 61 on the casing 6 inner wall, and in heating calandria 4 was located wind channel 61, fan 7 was used for supplying air in to wind channel 61, and the wind channel is equipped with air outlet 611.
In operation, the heating gauntlet 4 is filled with a heating medium, such as heating oil, and the heating medium is warmed by the heating device 5, thereby warming the heating gauntlet 4. At the same time, air is blown into the duct 61 by the blower 7. The air flow entering the air duct 61 is heated by the heating gauntlet 4, the heated air flow is sent out from the air outlet 611, the heated member 15 can be placed in the range surrounded by the air duct 61, and the heated member 15 is heated by the hot air blown out from the air outlet 611, so that the heated member is dried. In the process, the temperature T of the heating device 5 can be controlled in real time by the temperature rise control system 3 I.e. the heating medium temperature value of the heating device 5, is controlled in real time, thereby ensuring that the heated member 15 is warmed up at a specific warming rate.
In this embodiment, a plurality of heating gauntlets 4 are connected into a loop through a pipeline, the plurality of heating gauntlets 4 are all arranged in the air flue 61, and the heating system further comprises an oil expansion tank 8, a filter 9, an oil pump 10, a temperature sensor 11, an oil flow switch 12 and a plurality of valves 13 which are arranged on the pipeline, and the oil pump 10 can pump heating oil into the pipeline.
In the present embodiment, the blower 7 includes an outer circulation blower 71 and an inner circulation blower 72, the outer circulation blower 71 is provided outside the housing 6, and the inner circulation blower 72 is provided in the air duct 61. The hot air circulation system also comprises an air inlet valve 14 and an air exhaust valve 16. The inner circulation fan 72 pumps the cold air of the shell 6 into the air channel 61 with the heating calandria 4, the air flow is heated by the heating calandria 4 when the air channel 61 circulates, and is sent into the shell 6 again through the air outlet 611 to heat the heated member 15, then the inner circulation fan 72 sends the cold air into the air channel 61 again to heat, the outer circulation fan 71 is used for supplementing dry air, and the air exhaust valve 16 is used for exhausting part of moist air, so that the metal parts of the heated member 15 are prevented from rusting due to the saturation of water vapor in the shell 6.
According to the heating control system, the heating control method and the drying equipment, the real-time heating temperature of the drying equipment can be monitored in real time through the acquisition unit, and the real-time heating rate and the real-time temperature value of the heated piece are acquired; and determining a heating temperature set value of a heating system of the drying equipment according to the measured data through a fuzzy control unit, and controlling the real-time heating temperature of the heating system of the drying equipment in real time by the PID control unit according to the heating temperature set value. In the process, the real-time heating temperature set value of the heating system can be finally determined through the real-time heating temperature, the real-time heating rate and the real-time temperature value which are acquired in real time, so that the heating system can be dynamically controlled in real time, and the heated piece can be heated at a specific heating rate conveniently; and when the heated part changes, the real-time heating temperature, the real-time heating rate and the real-time temperature value of the new heated part can be acquired in real time, so that the heated part can be regulated at a specific heating rate, the application range is enlarged, and meanwhile, the heating rate is ensured, the product quality is improved, and the cost is reduced.
It should be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the specification. The invention is capable of other embodiments and of being practiced and carried out in various ways. The foregoing variations and modifications are intended to fall within the scope of the present invention. It should be understood that the invention disclosed and defined in this specification extends to all alternative combinations of two or more of the individual features mentioned or evident from the text and/or drawings. All of these different combinations constitute various alternative aspects of the present invention. The embodiments described in this specification illustrate the best mode known for carrying out the invention and will enable those skilled in the art to make and use the invention.
Claims (6)
1. A temperature increase control system of a drying apparatus, comprising:
the collecting unit is arranged on the drying equipment and can detect the real-time heating rate and the real-time temperature value of a heated piece in the drying equipment and the real-time heating temperature of a heating system of the drying equipment;
the fuzzy control unit is connected with the acquisition unit and can determine a heating temperature set value of a heating system of the drying equipment according to the data measured by the acquisition unit;
the PID control unit is connected with the fuzzy control unit and the heating system at the same time, and can control the heating system according to a heating temperature set value output by the fuzzy control unit;
the acquisition unit comprises a first comparison module, the real-time heating rate acquired by the acquisition unit is input to the first comparison module, the preset heating rate is also input to the first comparison module, the first comparison module compares and outputs a first difference value to the fuzzy control unit, and the fuzzy control unit determines a heating temperature set value of the heating system according to the first difference value;
the acquisition unit comprises a second comparison module, the real-time temperature value acquired by the acquisition unit is input to the second comparison module, the real-time heating temperature is also input to the second comparison module, the second comparison module compares and outputs a second difference value to the fuzzy control unit, and the fuzzy control unit determines a heating temperature set value of the heating system according to the second difference value;
the acquisition unit comprises a detection module, the detection module is arranged on the drying equipment, and the detection module can detect the real-time heating rate, the real-time temperature value and the real-time heating temperature;
the fuzzy control unit includes:
the fuzzy control module is connected with the acquisition unit and can determine a temperature adjustment value according to the data measured by the acquisition unit;
the amplitude limiting control module is connected with the fuzzy control module and the PID control unit at the same time, and can dynamically limit the temperature adjustment value within a preset range to obtain a heating temperature set value and send the heating temperature set value to the PID control unit; the heating temperature set point is defined within a predetermined range by dynamic clipping control.
2. The temperature-increasing control system according to claim 1, wherein the PID control unit includes:
the third comparison module is connected with the fuzzy control unit and can calculate and obtain temperature control quantity according to the heating temperature set value and the real-time heating temperature;
and the PID controller is simultaneously connected with the third comparison module and the heating system, and can calculate a temperature control value according to the temperature control quantity and adjust the heating temperature of the heating system according to the temperature control value.
3. The warming control system of claim 2 wherein the fuzzy control unit and the PID controller are integrated within the same PLC.
4. A temperature increase control method of a drying apparatus, comprising the steps of:
detecting the real-time heating rate and the real-time temperature value of a heated piece in the drying equipment and the real-time heating temperature of a heating system of the drying equipment;
determining a heating temperature set point of a heating system of the drying apparatus based on the measured data;
calculating a first difference value and a second difference value according to the measured data, wherein the first difference value is a difference value between a real-time heating rate and a preset heating rate, and the second difference value is a difference value between a real-time heating temperature and a real-time temperature value;
determining a temperature adjustment amount, a temperature adjustment value and a heating temperature set value according to a preset fuzzy control rule table according to the first difference value and the second difference value;
and controlling a heating system of the drying equipment according to the heating temperature set value.
5. The temperature increase control method according to claim 4, wherein the determining a heating temperature set point of a heating system of the drying apparatus based on the measured data comprises: dynamically defining the heating temperature set point within a predetermined range.
6. Drying equipment, including heating system and hot air circulation system, its characterized in that still includes claim 1 to 3 any heating system, heating system includes heating calandria and is used for heating device of heating calandria, heating device with PID control unit is connected, hot air circulation system includes casing and fan, be formed with the wind channel on the shells inner wall, the heating pipe is located in the wind channel, the fan is used for to supply air in the wind channel, the wind channel is equipped with the air outlet.
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| CN201610909175.3A CN107957185B (en) | 2016-10-18 | 2016-10-18 | Heating control system and method of drying equipment and drying equipment |
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| CN201610909175.3A CN107957185B (en) | 2016-10-18 | 2016-10-18 | Heating control system and method of drying equipment and drying equipment |
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| CN110926200B (en) * | 2019-12-16 | 2021-03-30 | 内蒙古君正化工有限责任公司 | Control method, system and application of steam drying device |
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| CN100432606C (en) * | 2006-07-28 | 2008-11-12 | 华南农业大学 | Adaptive control system of hot air drying |
| CN201876075U (en) * | 2010-10-19 | 2011-06-22 | 西安众智惠泽光电科技有限公司 | Steam pressure monitoring system for drying apparatus |
| CN103217010B (en) * | 2013-04-08 | 2015-05-20 | 上海烟草集团有限责任公司 | Control system of material dryer device |
| CN103677015B (en) * | 2013-11-29 | 2016-03-02 | 北京七星华创电子股份有限公司 | The temperature control system of semiconductor technology heat treating equipment and method |
| CN206514672U (en) * | 2016-10-18 | 2017-09-22 | 中山凯旋真空技术工程有限公司 | The heating control system and drying equipment of drying equipment |
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