CN103383182A - Temperature controller and method for hot air circulating oven - Google Patents
Temperature controller and method for hot air circulating oven Download PDFInfo
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- CN103383182A CN103383182A CN2012104811711A CN201210481171A CN103383182A CN 103383182 A CN103383182 A CN 103383182A CN 2012104811711 A CN2012104811711 A CN 2012104811711A CN 201210481171 A CN201210481171 A CN 201210481171A CN 103383182 A CN103383182 A CN 103383182A
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- temperature
- plc controller
- electric control
- control valve
- heated
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Abstract
The invention discloses a temperature controller and method for a hot air circulating oven. The temperature controller comprises a heating box, wherein a radiator is mounted inside the heating box, and is connected with a steam pipeline. The temperature controller is characterized in that an electric control valve is mounted on the steam pipeline, and is connected with a PLC controller; the PLC controller is connected with a temperature sensor arranged inside the hot air circulating oven. According to the invention, the temperature sensor collects the temperature in the hot air circulating oven, and transmits temperature signals to the PLC controller, when the measured temperature is higher than a set value, the PLC controller controls the electric control valve to perform closed circuit movement, and when the measured temperature is less than the set value, the PLC controller controls the electric control valve to perform open circuit movement; through the matching of the electric control valve and the PLC controller, the temperature in the oven can be accurately controlled, and meanwhile, the constant and stable operation of the oven is ensured through the design of a safety valve and a bypass.
Description
Technical field
The present invention relates to temperature control equipment and the method for heated-air circulation oven, belong to the drying plant field.
Background technology
Heated-air circulation oven is mainly used in water-containing materials is carried out drying, removes moisture wherein.As a rule, need to control the temperature in baking oven.Existing temperature-controlled process is just used solenoid control, control accuracy is poor, and because the temperature range in baking oven fluctuation is larger, and the characteristic of magnetic valve normally-open normally-close can't be because of to temperature controlled requirement, open and close simultaneously motion and too frequently make magnetic valve fragile, be unfavorable for the stability of product.
Summary of the invention
The applicant studies and improves for the prior art above shortcomings, and a kind of temperature control equipment and method of heated-air circulation oven is provided, and control accuracy is high.
The present invention is directed to above-mentionedly in order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
The present invention includes heating cabinet, installation of heat radiator in heating cabinet, radiator connects jet chimney, it is characterized in that installing on jet chimney electric control valve, electric control valve connects the PLC controller, and the PLC controller temperature sensor interior with being arranged on heated-air circulation oven is connected.
Further, the jet chimney at electric control valve place is parallel with the bypass that safety valve is set, electric control valve both sides connection safety valve.
Temperature sensor gathers the temperature in described heated-air circulation oven, temperature signal is transferred to the PLC controller, when the temperature that records higher than when setting value, the PLC controller is controlled electric control valve and is done closed circuit motion, lower than when setting value, the PLC controller is controlled electric control valve and is done the open circuit motion when the temperature that records
Technique effect of the present invention is: by the coordinate temperature that can accurately control baking oven in of electric control valve with the PLC controller, the continual and steady of baking oven work guaranteed in design safety valve and bypass simultaneously.
Description of drawings
Fig. 1 is structural representation of the present invention.
The specific embodiment
See Fig. 1, the present invention includes heating cabinet 10, the interior installation of heat radiator 11 of heating cabinet 10, radiator 11 connects jet chimney 9, electric control valve 5 is set on jet chimney 8, the left and right sides of electric control valve 5 is communicated with safety valve 4 and safety valve 6, and jet chimney 8 is parallel with bypass 8 a section of electric control valve 5, and bypass 8 arranges safety valve 7.
The point for measuring temperature set temperature sensor 2 of the present invention in heated-air circulation oven 1, temperature sensor 2 gathers the temperature of described heated-air circulation oven interior 1, and temperature signal is transferred to PLC controller 3, when the temperature that records higher than when setting value, the PLC controller is controlled 3 electric control valves 5 and is done closed circuit motion, lower than when setting value, the PLC controller is controlled electric control valve 5 and is done the open circuit motion when the temperature that records.
Claims (3)
1. the temperature control equipment of heated-air circulation oven, comprise heating cabinet, installation of heat radiator in described heating cabinet, described radiator connects jet chimney, it is characterized in that on described jet chimney, electric control valve being installed, described electric control valve connects the PLC controller, and the described PLC controller temperature sensor interior with being arranged on heated-air circulation oven is connected.
2. the temperature control equipment of heated-air circulation oven according to claim 1 is characterized in that the jet chimney at described electric control valve place is parallel with the bypass that safety valve is set, described electric control valve both sides connection safety valve.
3. be used for the control method of the temperature control equipment of heated-air circulation oven claimed in claim 1, it is characterized in that by the temperature in the described heated-air circulation oven of temperature sensor collection, temperature signal is transferred to the PLC controller, when the temperature that records higher than when setting value, the PLC controller is controlled electric control valve and is done closed circuit motion, lower than when setting value, the PLC controller is controlled electric control valve and is done the open circuit motion when the temperature that records.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104811711A CN103383182A (en) | 2012-11-23 | 2012-11-23 | Temperature controller and method for hot air circulating oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104811711A CN103383182A (en) | 2012-11-23 | 2012-11-23 | Temperature controller and method for hot air circulating oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103383182A true CN103383182A (en) | 2013-11-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104811711A Pending CN103383182A (en) | 2012-11-23 | 2012-11-23 | Temperature controller and method for hot air circulating oven |
Country Status (1)
| Country | Link |
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| CN (1) | CN103383182A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865189A (en) * | 2016-05-27 | 2016-08-17 | 镇江高海生物药业有限公司 | Airflow drying system used for chloro-oxytetracycline |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3875683A (en) * | 1974-05-17 | 1975-04-08 | Whitlock Inc | Integral heater plenum drying hoppers |
| US4587743A (en) * | 1983-10-20 | 1986-05-13 | The Japan Tobacco & Salt Public Corporation | Method of controlling temperature of drying machine |
| JP2003222470A (en) * | 2002-01-28 | 2003-08-08 | Sumitomo Chem Co Ltd | Temperature control device for dryer, dryer having the same, and drying method of drying object |
| CN2809542Y (en) * | 2005-02-02 | 2006-08-23 | 朱希 | Steam heat exchange type dryer temperature control system |
| CN201365487Y (en) * | 2009-01-14 | 2009-12-23 | 圣昌达机械（天津）有限公司 | Multistage dryer with controllable humiture |
| CN201583119U (en) * | 2010-01-15 | 2010-09-15 | 山东祥鼎毛绒纺织有限公司 | Automatic regulation steam saver of loose fibre dryer |
| CN202024303U (en) * | 2011-04-22 | 2011-11-02 | 中国石化集团胜利石油管理局胜利发电厂 | Automatic temperature control device for gas-fired boiler |
| CN202061784U (en) * | 2011-04-28 | 2011-12-07 | 长春一汽富维高新汽车饰件有限公司 | Heating device for painting line drying chamber |
| CN202973809U (en) * | 2012-11-23 | 2013-06-05 | 无锡众望四维科技有限公司 | Temperature control device of hot air circulating oven |
-
2012
- 2012-11-23 CN CN2012104811711A patent/CN103383182A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3875683A (en) * | 1974-05-17 | 1975-04-08 | Whitlock Inc | Integral heater plenum drying hoppers |
| US4587743A (en) * | 1983-10-20 | 1986-05-13 | The Japan Tobacco & Salt Public Corporation | Method of controlling temperature of drying machine |
| JP2003222470A (en) * | 2002-01-28 | 2003-08-08 | Sumitomo Chem Co Ltd | Temperature control device for dryer, dryer having the same, and drying method of drying object |
| CN2809542Y (en) * | 2005-02-02 | 2006-08-23 | 朱希 | Steam heat exchange type dryer temperature control system |
| CN201365487Y (en) * | 2009-01-14 | 2009-12-23 | 圣昌达机械（天津）有限公司 | Multistage dryer with controllable humiture |
| CN201583119U (en) * | 2010-01-15 | 2010-09-15 | 山东祥鼎毛绒纺织有限公司 | Automatic regulation steam saver of loose fibre dryer |
| CN202024303U (en) * | 2011-04-22 | 2011-11-02 | 中国石化集团胜利石油管理局胜利发电厂 | Automatic temperature control device for gas-fired boiler |
| CN202061784U (en) * | 2011-04-28 | 2011-12-07 | 长春一汽富维高新汽车饰件有限公司 | Heating device for painting line drying chamber |
| CN202973809U (en) * | 2012-11-23 | 2013-06-05 | 无锡众望四维科技有限公司 | Temperature control device of hot air circulating oven |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865189A (en) * | 2016-05-27 | 2016-08-17 | 镇江高海生物药业有限公司 | Airflow drying system used for chloro-oxytetracycline |
| CN105865189B (en) * | 2016-05-27 | 2018-04-03 | 镇江高海生物药业有限公司 | A kind of Air Dried System for chloro terramycin |
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| PB01 | Publication | ||
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| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131106 |