CN202973809U - Temperature control device of hot air circulating oven - Google Patents
Temperature control device of hot air circulating oven Download PDFInfo
- Publication number
- CN202973809U CN202973809U CN2012206261548U CN201220626154U CN202973809U CN 202973809 U CN202973809 U CN 202973809U CN 2012206261548 U CN2012206261548 U CN 2012206261548U CN 201220626154 U CN201220626154 U CN 201220626154U CN 202973809 U CN202973809 U CN 202973809U
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- CN
- China
- Prior art keywords
- temperature control
- control device
- hot air
- electric control
- temperature
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Drying Of Solid Materials (AREA)
Abstract
The utility model discloses a temperature control device of a hot air circulating oven. The temperature control device comprises a heating box, wherein a radiator is arranged in the heating box and connected with a steam pipeline. The temperature control device is characterized in that an electric regulating valve is arranged on the steam pipeline and connected with a programmable logic controller (PLC); and the PLC is connected with a temperature sensor in the hot air circulating oven. The temperature control device of the hot air circulating oven has the advantages that by the cooperation of the electric regulating valve and the PLC, the internal temperature of the oven can be accurately controlled; and due to the design of a safety valve and a bypass, the oven can work continuously and stably.
Description
Technical field
The utility model relates to the temperature control equipment of heated-air circulation oven, belongs 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.
The utility model content
The applicant studies and improves for the prior art above shortcomings, and a kind of temperature control equipment of heated-air circulation oven is provided, and control accuracy is high.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme to the utility model for above-mentioned:
The utility model comprises 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.
Technique effect of the present utility model 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 utility model.
The specific embodiment
See Fig. 1, the utility model comprises 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 utility model 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.
Bypass 8 of the present utility model is in normally off, and namely safety valve 7 is closed circuit.When electric control valve 5 breaks down, can closed safe valve 4 and safety valve 6, open the safety-valve 7, steam is bypassed to radiator 11, has guaranteed the continuation of producing.
Claims (2)
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206261548U CN202973809U (en) | 2012-11-23 | 2012-11-23 | Temperature control device of hot air circulating oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206261548U CN202973809U (en) | 2012-11-23 | 2012-11-23 | Temperature control device of hot air circulating oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202973809U true CN202973809U (en) | 2013-06-05 |
Family
ID=48514872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206261548U Expired - Fee Related CN202973809U (en) | 2012-11-23 | 2012-11-23 | Temperature control device of hot air circulating oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202973809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383182A (en) * | 2012-11-23 | 2013-11-06 | 无锡众望四维科技有限公司 | Temperature controller and method for hot air circulating oven |
-
2012
- 2012-11-23 CN CN2012206261548U patent/CN202973809U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383182A (en) * | 2012-11-23 | 2013-11-06 | 无锡众望四维科技有限公司 | Temperature controller and method for hot air circulating oven |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131123 |