CN105180632B - Dryer temprature control method and its dryer system - Google Patents
Dryer temprature control method and its dryer system Download PDFInfo
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- CN105180632B CN105180632B CN201510705432.7A CN201510705432A CN105180632B CN 105180632 B CN105180632 B CN 105180632B CN 201510705432 A CN201510705432 A CN 201510705432A CN 105180632 B CN105180632 B CN 105180632B
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Abstract
Present invention is disclosed a kind of dryer temprature control method and its dryer system, dryer is connected by pipeline with hot-blast stove, the dryer is provided with air draft mechanism, the first temperature sensor is provided with the pipeline, first temperature sensor exports induced signal to controller, the controller outputs control signals to air draft mechanism, and second temperature sensor is provided with the dryer, and the second temperature sensor exports induced signal to controller.The present invention is the reload temperature sensor near heat exchange sites by the way of, and the variable frequency regulating speed control to exhausting motor is realized by frequency converter, finally realize the closed-loop control to temperature in drying process, improve its control accuracy, and different grain species can be directed to, thermostatic control reaches best drying efficiency.
Description
Technical field
The present invention relates to the control system of drying temperature inside grain drying machine field, more particularly to dryer and its control
Method.
Background technology
Grain drying machine is a kind of assembly of dryer, is the general designation of the various equipment of foodstuff drying device, and can also turn into is
Foodstuff drying device, an important factor for temperature is in dryer control process, dryer directly determines to temperature controlled quality
The quality of grain-drying.
At present, on the market dryer thermal source is complicated, and existing high temperature furnace etc. also has using coal or natural gas as the thermal source of raw material
The thermal source using oil as raw material such as combustor, more has the more perfect thermal source of control system as shower furnace, for different heat
Source, what is mainly gathered in dryer control process is the temperature of hot-air mouth, it is impossible to the temperature directly reflected in drying course；One side
The system temperature that face collects is near heating sources hot-air mouth temperature, for the drying temperature in drying process, without intuitively anti-
Reflect；Still further aspect be mainly by control thermal source fuel number or intake number control heat source temperature, control
Effect is poor, and wave phenomenon is obvious back and forth for temperature.
The content of the invention
The technical problems to be solved by the invention realize it is a kind of can constant control drying temperature, improve drying efficiency
Accurate temperature controlled dryer system.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of dryer temprature control method：
For gather connection dryer and hot-blast stove pipeline in and dryer in real time temperature the step of；
For comparing the comparison step of gathered real time temperature and preset temperature；
For being controlled the control of air draft mechanism rotating speed to walk according to the comparative result of the real time temperature and the preset temperature
Suddenly.
In the rate-determining steps：The air draft mechanism is reduced if the real time temperature is less than the preset temperature to turn
Speed；If the real time temperature raises the air draft mechanism rotating speed higher than the preset temperature.
In the comparison step, the preset temperature is T1, T1=kaTa1+kbTb1, and wherein ka is in the pipeline
Temperature coefficient, kb be dryer in temperature coefficient, Ta1 be pipeline in target control temperature, Ta2 be dryer in mesh
Mark control temperature, it is T, T=kaTa+kbTb to gather real time temperature, and real time temperature is Ta wherein in pipeline, real-time in dryer
Temperature is Tb.
The collection position of the real time temperature of collection is position near the heat exchange point in dryer in the dryer.
The rate-determining steps also include：Output control signals to hot-blast stove if real time temperature is less than preset temperature and improve and add
Hot temperature, hot-blast stove reduction heating-up temperature is output control signals to if real time temperature is higher than preset temperature.
A kind of dryer temperature controller, the temperature controller include：
For gather connection dryer and hot-blast stove pipeline in and dryer in real time temperature input block；
For comparing the comparing unit of gathered real time temperature and preset temperature；
For controlling the control list of air draft mechanism rotating speed according to the comparative result of the real time temperature and the preset temperature
Member.
A kind of dryer temperature control system, dryer are connected by pipeline with hot-blast stove, and the dryer is provided with exhausting
Mechanism, the dryer temperature control system include described dryer temperature controller, and the controller, which receives, is arranged on pipe
The real time temperature signal of the first temperature sensor in road, and in drying mechanism second temperature sensor real-time temperature
Signal is spent, the controller is according to gathered real time temperature signal with outputing control signals to air exhauster after preset temperature
Structure.
The motor of the air draft mechanism connects power supply through frequency converter, and described controller outputs control signals to frequency converter.
Described controller output temperature Regulate signal is to hot-blast stove.
The first described temperature sensor is located in pipeline close to one end of hot-blast stove, described second temperature sensor position
The position near the heat exchange point in drying mechanism.
A kind of dryer, including drying machine body, described drying machine body include described dryer temperature control system
System.
The present invention is the reload temperature sensor near heat exchange sites by the way of, and is realized by frequency converter to taking out
The variable frequency regulating speed control of wind turbine, the closed-loop control to temperature in drying process is finally realized, improves its control accuracy, and can
For different grain species, thermostatic control reaches best drying efficiency.
Brief description of the drawings
The content of every width accompanying drawing expression in description of the invention and the mark in figure are briefly described below：
Fig. 1 is accurate temperature controlled dryer system structural representation；
Fig. 2 is dryer temprature control method flow chart；
Fig. 3 the first temperature sensor location ideal temperature change curve schematic diagrames；
Mark in above-mentioned figure is：1st, dryer；2nd, pipeline；3rd, hot-blast stove；4th, air draft mechanism；5th, the first TEMP
Device；6th, second temperature sensor.
Embodiment
Dryer generally comprises air draft mechanism 4, hot-blast stove 3 and dryer 1, and wherein dryer 1 passes through pipeline 2 and hot-blast stove
3 connections, hot-blast stove 3 are drying thermal source, hot blast are delivered in dryer 1 by pipeline 2, dryer 1 is to be dried for taking up
Cereal, air draft mechanism 4 connected by pipeline with dryer 1, and air draft mechanism 4 is the hot blast power source of drying thermal source, dryer 1
Interior cereal carries out heat exchange with hot blast by steel construction, and so as to reduce cereal moisture percentage, the hot blast after heat exchange is by taking out
Wind mechanism 4, discharge dryer 1 are returned in air.
As shown in figure 1, the present invention is provided with the first temperature sensor 5 in pipeline 2, and the second temperature is provided with dryer 1
Sensor 6 is spent, the first temperature sensor 5 predominantly detects the endogenous pyrogen temperature of pipeline 2, for the heat exchanging process of cereal, thermal source temperature
Degree has a certain impact, but not enough directly, the drying efficiency for improving cereal, the stability influence of heat source temperature is nor very
Substantially, what second temperature sensor 6 gathered is the temperature of cereal heat exchange sites, is temperature of the practical function on cereal, the
One temperature sensor 5 and second temperature sensor 6 export induced signal to controller, pass through the first temperature sensor 5 and
The cooperation detection of two temperature sensors 6, then be capable of detecting when the thermal source of whole drying system and the temperature parameter of drying area, just
Worked in controller coordinate dryer.
Temperature is adjusted for ease of controller, the motor of air draft mechanism 4 connects power supply, controller output through frequency converter
Control signal is to frequency converter, and adjustment air quantity that can be electrodeless by frequency converter is easy to more be accurately controlled drying temperature.Simultaneously
Controller output temperature Regulate signal is also controlled to thermal source to hot-blast stove 3, is finally reached preferable drying effect simultaneously.
The controller processing module of above-mentioned drying system, processing module is used for the processing of signal, by the signal of material
Dryer system is provided with a controller for being used to coordinate all parts work, and the controller is provided with processing module,
Processing module is used for the signal transacting output control signal according to reception, and processing module is provided with the letter of connection air draft mechanism frequency converter
Number output interface, the signal output interface for connecting hot-blast stove, it is used to connect for output control signal, and at least provided with two
The signal input interface of temperature sensor, for receiving temperature signal.
Based on above-mentioned hardware system, referring to Fig. 2, dryer temprature control method of the invention is as follows：
Step 1, dryer start, and dryer carries out preheating process after startup, and the pre-warmed time is according to thermal source and baking
The volume of dry machine 1 is self-defined, and gradually lifting is until stable for preheating process temperature, and the stage is without temperature adjustment and detection；
Real time temperature signal is delivered to controller by step 2, temperature sensor, by real-time temperature values and preset temperature ratio
Compared with；
Step 3, controller outputs control signals to frequency converter reduction motor speed if real time temperature is less than preset temperature,
Controller outputs control signals to frequency converter and improves motor speed if real time temperature is higher than preset temperature；
Above-mentioned preset temperature is T1, T1=kaTa1+kbTb1, and wherein ka is the temperature system of the position of the first temperature sensor 5
Number, kb are the temperature coefficient of the position of second temperature sensor 6, and Ta1 is that the Place object of the first temperature sensor 5 controls temperature, Ta2
Temperature is controlled for the Place object of second temperature sensor 6, the real time temperature of sensor output is T, T=kaTa+kbTb, wherein the
The real time temperature of one temperature sensor 5 is Ta, and 6 real-time temperature of second temperature sensor is Tb.Target control temperature and temperature in real time
Degree compares, and by Frequency Converter Control air exhauster rotating speed, realizes closed-loop control.Wherein temperature coefficient ka and kb is according to product department
The size and power of part are default, for adjusting the weight of two temperature sensors.
In addition, the step also has steps of：The controller output control signal if real time temperature is less than preset temperature
Heating-up temperature is improved to hot-blast stove 3, controller, which outputs control signals to hot-blast stove 3, if real time temperature is higher than preset temperature reduces
Heating-up temperature, by aiding in controlling heat source temperature, it is finally reached preferable drying effect；
Step 4, return to step 2.
The present invention also protects a kind of dryer, and dryer includes drying machine body, and the drying machine body includes air draft mechanism
4th, hot-blast stove 3 and dryer 1, the drying machine body are provided with above-mentioned precisely temperature controlled dryer system.
The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that present invention specific implementation is not by aforesaid way
Limitation, as long as the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress is employed, or without changing
Enter and the design of the present invention and technical scheme are directly applied into other occasions, within protection scope of the present invention.
Claims (8)
- A kind of 1. dryer temprature control method, it is characterised in that：The dryer is grain drying machine；For gather connection dryer and hot-blast stove pipeline in and dryer in real time temperature the step of；For comparing the comparison step of gathered real time temperature and preset temperature；For controlling the rate-determining steps of air draft mechanism rotating speed according to the comparative result of the real time temperature and the preset temperature；In the rate-determining steps：The air draft mechanism rotating speed is reduced if the real time temperature is less than the preset temperature；If The real time temperature then raises the air draft mechanism rotating speed higher than the preset temperature；In the comparison step, the preset temperature is T1, T1=kaTa1+kbTb1, and wherein ka is the temperature in the pipeline Coefficient, kb are the temperature coefficient in dryer, and Ta1 is the target control temperature in pipeline, and Ta2 is the target control in dryer Temperature, it is T, T=kaTa+kbTb to gather real time temperature, and real time temperature is Ta wherein in pipeline, and real time temperature is in dryer Tb。
- 2. dryer temprature control method according to claim 1, it is characterised in that：Collection is real-time in the dryer The collection position of temperature is position near the heat exchange point in dryer.
- 3. dryer temprature control method according to claim 1 or 2, it is characterised in that：The rate-determining steps also include： Hot-blast stove is output control signals to if real time temperature is less than preset temperature and improves heating-up temperature, if real time temperature is higher than default temperature Degree, which then outputs control signals to hot-blast stove, reduces heating-up temperature.
- 4. a kind of dryer temperature controller for performing the dryer temprature control method as any one of claim 1-3, It is characterized in that：The temperature controller includes：For gather connection dryer and hot-blast stove pipeline in and dryer in real time temperature input block；For comparing the comparing unit of gathered real time temperature and preset temperature；For controlling the control unit of air draft mechanism rotating speed according to the comparative result of the real time temperature and the preset temperature.
- 5. a kind of dryer temperature control system using dryer temperature controller as claimed in claim 4, dryer passes through Pipeline connects with hot-blast stove, and the dryer is provided with air draft mechanism, it is characterised in that：The dryer temperature control system includes Dryer temperature controller described in claim 4, the controller receive the first temperature sensor in pipeline Real time temperature signal, and in drying mechanism second temperature sensor real time temperature signal, the controller according to Gathered real time temperature signal after preset temperature with outputing control signals to air draft mechanism.
- 6. dryer temperature control system according to claim 5, it is characterised in that：The motor of the air draft mechanism is through becoming Frequency device connects power supply, and described controller outputs control signals to frequency converter.
- 7. the dryer temperature control system according to claim 5 or 6, it is characterised in that：Described controller output temperature Regulate signal is spent to hot-blast stove, the first described temperature sensor be located in pipeline one end of close hot-blast stove, and described second Temperature sensor is located at position near the heat exchange point in drying mechanism.
- 8. a kind of dryer, including drying machine body, it is characterised in that：Described drying machine body is included in claim 5-7 Dryer temperature control system described in any one.
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| CN201510705432.7A CN105180632B (en) | 2015-10-26 | 2015-10-26 | Dryer temprature control method and its dryer system |
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| CN105180632B true CN105180632B (en) | 2018-02-13 |
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| CN105890329B (en) * | 2016-05-06 | 2019-02-01 | 湖南省农友盛泰农业科技有限公司 | A kind of grain drying machine method for regulating temperature and control device based on PID control |
| CN107318976A (en) * | 2017-08-08 | 2017-11-07 | 常州天能博智能系统科技有限公司 | A kind of grain-drying system and household energy conserving system based on server waste heat |
| CN109974395A (en) * | 2017-12-27 | 2019-07-05 | 山东琦泉能源科技有限公司 | Biomass material drying means |
| CN110094944B (en) * | 2019-05-07 | 2024-02-09 | 中联重机股份有限公司 | Batch microwave grain dryer and drying method |
| CN116951747B (en) * | 2023-06-27 | 2024-01-23 | 广东广业云硫矿业有限公司 | Control device and method for phosphate fertilizer hot blast stove |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS556115A (en) * | 1978-06-26 | 1980-01-17 | Matsushita Electric Works Ltd | Method of controlling temperature of dryer |
| JPS5767781A (en) * | 1980-10-14 | 1982-04-24 | Shizuoka Seiki Co Ltd | Drying air temperature controller for grain dryer |
| JPH05106966A (en) * | 1991-10-17 | 1993-04-27 | Iseki & Co Ltd | Drying control system of grain dryer |
| JP2001255064A (en) * | 2000-03-09 | 2001-09-21 | Satake Corp | Crop drying device |
| CN101058938A (en) * | 2006-04-17 | 2007-10-24 | Lg电子株式会社 | Dryer and the control method of the same |
| JP4440044B2 (en) * | 2004-08-31 | 2010-03-24 | 津田駒工業株式会社 | Temperature control method for hot air dryer and hot air dryer |
| CN101782317A (en) * | 2009-01-20 | 2010-07-21 | 北新集团建材股份有限公司 | Method for controlling hot-air temperature of hot-air drier |
| CN103808118A (en) * | 2013-12-03 | 2014-05-21 | 宁波德锐电气有限公司 | Energy saving system of drying machine |
| CN204438737U (en) * | 2015-01-07 | 2015-07-01 | 福田雷沃国际重工股份有限公司 | A kind of dryer temperature control device |
| CN104807181A (en) * | 2015-04-15 | 2015-07-29 | 柳州凯通机械有限公司 | Control method for air heater |
-
2015
- 2015-10-26 CN CN201510705432.7A patent/CN105180632B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS556115A (en) * | 1978-06-26 | 1980-01-17 | Matsushita Electric Works Ltd | Method of controlling temperature of dryer |
| JPS5767781A (en) * | 1980-10-14 | 1982-04-24 | Shizuoka Seiki Co Ltd | Drying air temperature controller for grain dryer |
| JPH05106966A (en) * | 1991-10-17 | 1993-04-27 | Iseki & Co Ltd | Drying control system of grain dryer |
| JP2001255064A (en) * | 2000-03-09 | 2001-09-21 | Satake Corp | Crop drying device |
| JP4440044B2 (en) * | 2004-08-31 | 2010-03-24 | 津田駒工業株式会社 | Temperature control method for hot air dryer and hot air dryer |
| CN101058938A (en) * | 2006-04-17 | 2007-10-24 | Lg电子株式会社 | Dryer and the control method of the same |
| CN101782317A (en) * | 2009-01-20 | 2010-07-21 | 北新集团建材股份有限公司 | Method for controlling hot-air temperature of hot-air drier |
| CN103808118A (en) * | 2013-12-03 | 2014-05-21 | 宁波德锐电气有限公司 | Energy saving system of drying machine |
| CN204438737U (en) * | 2015-01-07 | 2015-07-01 | 福田雷沃国际重工股份有限公司 | A kind of dryer temperature control device |
| CN104807181A (en) * | 2015-04-15 | 2015-07-29 | 柳州凯通机械有限公司 | Control method for air heater |
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Address after: 241080 16 e - Xi Road, San Shan Economic Development Zone, Wuhu, Anhui Patentee after: Zhonglian Agricultural Machinery Co., Ltd Address before: 241080, No. 16, Wuhu Road, three mountain Economic Development Zone, three mountain area, Anhui, China Patentee before: ZOOMLION HEAVY MACHINERY Co.,Ltd. |