CN107193302A - A kind of foodstuff drying device drying layer automatic constant-temperature control system - Google Patents
A kind of foodstuff drying device drying layer automatic constant-temperature control system Download PDFInfo
- Publication number
- CN107193302A CN107193302A CN201610145558.8A CN201610145558A CN107193302A CN 107193302 A CN107193302 A CN 107193302A CN 201610145558 A CN201610145558 A CN 201610145558A CN 107193302 A CN107193302 A CN 107193302A
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- China
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- temperature
- drying device
- control system
- processor
- foodstuff
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
Abstract
The invention discloses a kind of foodstuff drying device drying layer automatic constant-temperature control system, the thermostatic control system is controlled using PLC, and the PLC includes processor and the memory and input/output interface circuit that are connected with the processor；Input/output interface circuit includes the input port for being used to gather the sensor detection signal of the foodstuff drying device drying layer and the output port that the executing agency to the foodstuff drying device drying layer is instructed for output control；Processor receives the sensor detection signal through the input port and generates the control instruction to the output port；The processor is connected with human-computer interaction module.The thermostatic control system of the present invention can control the air inlet valve on branch line to open when drying room temperature and being higher than the preset temperature upper limit by PLC output orders, so as to which the relatively low natural wind of ambient temperature is introduced into hothouse, temperature is quickly reduced to required temperature, dry room temperature is effectively ensured steady temperature is remained in drying course.
Description
Technical field
The present invention relates to foodstuff drying device technical field of temperature control, and in particular to a kind of foodstuff drying device drying layer automatic constant-temperature control system.
Background technology
Grain crack rate is to evaluate the important indicator of paddy technological quality.When the high paddy of percent cracked rice, particularly crackle are more deep, easily it is broken off during processing, otherwise unsuitable machining high-precision rice can make increase of cracking rice, reduce rice milling yield, be uneconomic.
The factor for producing quick-fried waist is a lot, drought, excessively disease, white harvest, machinery strike, hard hit, and Paddy With High Moisture Content Stored is by drying drastically and cooling drastically, or make moist moisture absorption when the grain of rice inside and surface shrinkage expansion is uneven etc. can all make Cracked Rice.Wherein, it is one of common cause for causing percent cracked rice high that temperature is too high in drying course.
Existing foodstuff drying device often gathers the flow for the hot blast temperature that drying room temperature --- feeding back to control module --- control module control hot air generator is produced for the temperature control in drying course, this feedback mechanism is slower, too high longer to reduction hot blast temperature flow from drying temperature is collected.Therefore, needing exploitation badly a kind of can quickly reduce the device of hot blast temperature.
The content of the invention
The purpose of the present invention can quickly reduce the automatic constant-temperature control system for foodstuff drying device drying layer of hot blast temperature in drying course aiming at above-mentioned deficiency there is provided a kind of.
Technical scheme is as follows：
A kind of foodstuff drying device drying layer automatic constant-temperature control system, the drying layer includes air inlet, hothouse and exhaust outlet, the hothouse is connected with the shunting layer of foodstuff drying device, the air inlet is connected with hot air duct, the other end of hot air duct is connected with hot air generator, and hot air duct is provided with the branch line being connected with air.The thermostatic control system is controlled using PLC, and the PLC includes processor and the memory and input/output interface circuit that are connected with the processor；
The input/output interface circuit includes：The output port of the executing agency to the foodstuff drying device drying layer is instructed for the input port of the sensor detection signal that gathers the foodstuff drying device drying layer and for output control；
The processor receives the sensor detection signal through the input port and generates the control instruction to the output port；
The processor is connected with human-computer interaction module；
The sensor detection signal is referred to：The hot blast temperature signal of hothouse；
The executing agency refers to：It is arranged at the air inlet valve on branch line.
Further, the human-computer interaction module is touch screen circuitry.
Further, the processor is provided with the telecommunication circuit for being used for being communicated with host computer.
Further, the telecommunication circuit uses RS485 interfaces.
The present invention has the following technical effect that：
The foodstuff drying device drying layer automatic constant-temperature control system of the present invention, the temperature detection signal of hothouse is received by PLC and contrasted with preset temperature, when drying room temperature higher than the preset temperature upper limit, air inlet valve on PLC output orders control branch line is opened, so as to which the relatively low natural wind of ambient temperature is introduced into hothouse, temperature is set to be quickly reduced to required temperature, dry room temperature is effectively ensured steady temperature is remained in drying course, the quality of cereal in the drying process is effectively ensured.
Brief description of the drawings
Fig. 1 is the structural representation of the foodstuff drying device drying layer of the embodiment of the present invention；
Fig. 2 is the module composition schematic diagram of the foodstuff drying device drying layer automatic constant-temperature control system of the embodiment of the present invention.
Embodiment
Technical scheme is clearly and completely described below in conjunction with the drawings and specific embodiments.
The following is the specific embodiment of the present invention.
As shown in Figure 1, in the foodstuff drying device drying layer of the present embodiment, the hothouse is connected with the shunting layer of foodstuff drying device, the drying layer includes air inlet, hothouse and exhaust outlet, the air inlet is connected with hot air duct, the other end of hot air duct is connected with hot air generator, and hot air duct is provided with the branch line being connected with air.Temperature sensor is provided with hothouse.
As shown in Figure 2, the automatic constant-temperature control system of the present embodiment is using PLC control, and the PLC includes processor and the memory and input/output interface circuit that are connected with the processor.Input/output interface circuit includes again：The output port of the executing agency to the foodstuff drying device drying layer is instructed for the input port of the sensor detection signal that gathers the foodstuff drying device drying layer and for output control.Processor receives the sensor detection signal through input port and generates the control instruction to the output port；Processor is also associated with human-computer interaction module.
Sensor detection signal refers to the hot blast temperature signal of hothouse in the present embodiment, and its collection is the temperature sensor by being arranged in hothouse；Executing agency refers to being arranged at the air inlet valve on branch line, and the air inlet valve can introduce air into hot air duct.
The course of work of the automatic constant-temperature control system of the present embodiment is as follows：Processor receives real-time hothouse temperature signal, when drying room temperature beyond default temperature range, processor exports the instruction for opening air inlet valve by output port to the air inlet valve being arranged on branch line, the relatively low natural wind of ambient temperature is introduced into hothouse, temperature is set to be quickly reduced to required temperature, dry room temperature is effectively ensured steady temperature is remained in drying course, the quality of cereal in the drying process is effectively ensured.
Human-computer interaction module in the present embodiment is touch screen circuitry, and human-computer interaction module is connected with processor.Traditional fault-signal and multiple control buttons is substituted using touch screen circuit so that control interface is succinct, is easy to fast control.
In addition, operator carries out remote control for convenience, processor is provided with the telecommunication circuit for being used for being communicated with host computer.Telecommunication circuit in the present embodiment is to use RS485 interfaces, in order to control room remote management, has the advantages that digital intelligent control, touch screen centralized displaying and control and simple interface.
In summary, the foodstuff drying device drying layer automatic constant-temperature control system of the present embodiment, the temperature detection signal of hothouse is received and through action by PLC, when drying room temperature higher than the preset temperature upper limit, air inlet valve on PLC output orders control branch line is opened, so as to which the relatively low natural wind of ambient temperature is introduced into hothouse, temperature is set to be quickly reduced to required temperature, dry room temperature is effectively ensured steady temperature is remained in drying course, the quality of cereal in the drying process is effectively ensured.
Above example is only the preferred embodiments of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.Simultaneously, the explanation of above example is only intended to the method and its core concept for helping to understand the present invention, for those of ordinary skill in the art, thought according to the present invention, it will change in specific embodiments and applications, in summary, this specification content should not be construed as limiting the invention.
Claims (4)
1. a kind of foodstuff drying device drying layer automatic constant-temperature control system, the drying layer includes air inlet, hothouse and exhaust outlet, the hothouse is connected with the shunting layer of foodstuff drying device, the air inlet is connected with hot air duct, the other end of hot air duct is connected with hot air generator, hot air duct is provided with the branch line being connected with air, it is characterised in that：The thermostatic control system is controlled using PLC, and the PLC includes processor and the memory and input/output interface circuit that are connected with the processor；
The input/output interface circuit includes：The output port of the executing agency to the foodstuff drying device drying layer is instructed for the input port of the sensor detection signal that gathers the foodstuff drying device drying layer and for output control；
The processor receives the sensor detection signal through the input port and generates the control instruction to the output port；
The processor is connected with human-computer interaction module；
The sensor detection signal is referred to：The hot blast temperature signal of hothouse；
The executing agency refers to：It is arranged at the air inlet valve on branch line.
2. a kind of foodstuff drying device drying layer automatic constant-temperature control system according to claim 1, it is characterised in that：The human-computer interaction module is touch screen circuitry.
3. a kind of foodstuff drying device drying layer automatic constant-temperature control system according to claim 1, it is characterised in that：The processor is provided with the telecommunication circuit for being used for being communicated with host computer.
4. a kind of foodstuff drying device drying layer automatic constant-temperature control system according to claim 3, it is characterised in that：The telecommunication circuit uses RS485 interfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610145558.8A CN107193302A (en) | 2016-03-15 | 2016-03-15 | A kind of foodstuff drying device drying layer automatic constant-temperature control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610145558.8A CN107193302A (en) | 2016-03-15 | 2016-03-15 | A kind of foodstuff drying device drying layer automatic constant-temperature control system |
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| Publication Number | Publication Date |
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| CN107193302A true CN107193302A (en) | 2017-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610145558.8A Pending CN107193302A (en) | 2016-03-15 | 2016-03-15 | A kind of foodstuff drying device drying layer automatic constant-temperature control system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110252663A1 (en) * | 2010-04-19 | 2011-10-20 | Global Seed Dryer Solutions, LLC | Agricultural material dryer |
| CN203771961U (en) * | 2014-04-02 | 2014-08-13 | 佛冈明阳机械有限公司 | Automatic thermostat of grain drying machine |
| CN204273097U (en) * | 2014-10-28 | 2015-04-22 | 湖北永祥粮食机械股份有限公司 | A kind of grain 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 |
| CN105341624A (en) * | 2015-11-26 | 2016-02-24 | 成都九十度工业产品设计有限公司 | Drying system for seafoods |
-
2016
- 2016-03-15 CN CN201610145558.8A patent/CN107193302A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110252663A1 (en) * | 2010-04-19 | 2011-10-20 | Global Seed Dryer Solutions, LLC | Agricultural material dryer |
| CN203771961U (en) * | 2014-04-02 | 2014-08-13 | 佛冈明阳机械有限公司 | Automatic thermostat of grain drying machine |
| CN204273097U (en) * | 2014-10-28 | 2015-04-22 | 湖北永祥粮食机械股份有限公司 | A kind of grain 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 |
| CN105341624A (en) * | 2015-11-26 | 2016-02-24 | 成都九十度工业产品设计有限公司 | Drying system for seafoods |
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Application publication date: 20170922 |