CN206459485U - A kind of safety control for heated-air circulation oven - Google Patents
A kind of safety control for heated-air circulation oven Download PDFInfo
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- CN206459485U CN206459485U CN201621353226.0U CN201621353226U CN206459485U CN 206459485 U CN206459485 U CN 206459485U CN 201621353226 U CN201621353226 U CN 201621353226U CN 206459485 U CN206459485 U CN 206459485U
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- heated
- air circulation
- relay
- circulation oven
- heater
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Abstract
A kind of safety control for heated-air circulation oven, it includes main box, and it is arranged on intake stack, inner bag, blower fan, heater in main box, it includes temperature controller, the output end of temperature controller is connected with breaker, relay respectively, the input of temperature controller instrument is connected with heater, and the output end of breaker and the input of relay are connected, and the output end of relay is connected with heater.The utility model can solve existing heated-air circulation oven and high temperature failure easily occur, it is serious when, the problem of easily triggering fire.
Description
Technical field
The utility model belongs to pharmacy, food processing manufacturing equipment field, specially a kind of for heated-air circulation oven
Safety control.
Background technology
The general principle of heated-air circulation oven is by the use of steam or electric energy as thermal source, by steam radiator or electrical heating member
Part produces heat, recycles blower fan to carry out circulative convection heat exchange, to carrying out heat transfer by baking material, keeps meeting work in casing
The steady temperature of skill requirement.Material relative humidity is reached production requirement by the drying and processing of certain time, be widely used in
In pharmacy, chemical industry, food, light industry and the raw material of heavy industry and the heating and dehumidification of product.
There is following technological deficiency in the prior art：1, temperature controller control A.C. contactor break-make gives heating element heater break-make
Electricity, each switch motion of contactor technical requirements can not be less than 30 seconds, and so easily causing design temperature and actual the temperature inside the box has
Positive and negative 10 degree of temperature difference fluctuation.To being adversely affected by baking quality of material, also reduce service efficiency and be unfavorable for energy-conservation, for
The higher material of temperature requirement can not be applicable at all.2, the contactor perseveration of control heating easily causes contact adhesion, contact
Temperature controller does not just have control action after sintering adhesion, and light then inventory disposal after breaking down is heavy then may trigger fire incident.
3, although baking oven electrical equipment control loop acousto-optic warning function, if operating personnel are not in front of equipment in actual use, waits hair
Processing is come in now alarm may serious overtemperature.
The content of the invention
The purpose of this utility model is to provide a kind of safety control for heated-air circulation oven, existing to solve
Heated-air circulation oven easily there is high temperature failure, it is serious when, easily trigger fire the problem of.
To achieve the above object, the utility model provides following technical scheme：
A kind of safety control for heated-air circulation oven, it includes main box, and is arranged in main box
Intake stack, inner bag, blower fan, heater, it includes temperature controller, the output end of temperature controller respectively with breaker,
Relay is connected, and the input of temperature controller is connected with heater, and the output end of breaker and the input of relay connect
Connect, the output end of relay is connected with heater.
Above-mentioned breaker is shunted exciter tripping breaker.
Above-mentioned relay is three-phase solid relay.
Above-mentioned heater includes adding thermal resistance.
Said temperature controller is the temperature controller that output contact is aided in overtemperature.
Compared with prior art, the beneficial effects of the utility model are：
The utility model can be accurately controlled to temperature, and temperature fluctuation is can be controlled in the range of very little, better than life
Requirement of the production. art to temperature fluctuation control range.Duplicate protection prevents the generation of overtemperature failure, the energy when overtemperature failure occurs
Automatically cut off main circuit power.Circulating fan and overtemperature failure can disconnect control circuit automatically, and equipment is out of service.
Brief description of the drawings
Fig. 1 is circuit structure block diagram of the present utility model；
Fig. 2 is the circuit diagram of the utility model embodiment.
Embodiment
A kind of safety control for heated-air circulation oven as shown in Figure 1, it includes main box, and is arranged on master
Intake stack, inner bag, blower fan 5, heater 4 in casing, it includes temperature controller 1, the output end point of temperature controller 1
Be not connected with breaker 2, relay 3, the input of temperature controller 1 is connected with heater 4, the output end of breaker 2 with
The input connection of relay 3, the output end of relay 3 is connected with heater 4.
The breaker 2 is shunted exciter tripping breaker.
The relay 3 is three-phase solid relay.
The heater 4 includes adding thermal resistance.
The temperature controller 1 is the temperature controller that output contact is aided in overtemperature.
Selected due to the annexation between the elements such as shunted exciter tripping breaker, three-phase solid relay and model and belong to this
Art personnel's known technology, therefore this specification repeats no more.
Using said structure, temperature fluctuation is can be controlled in the range of very little, better than production technology to temperature fluctuation control
The requirement of scope.Duplicate protection prevents the generation of overtemperature failure, and main circuit power can be automatically cut off when overtemperature failure occurs.Follow
Ring blower fan and overtemperature failure can disconnect control circuit automatically, and equipment is out of service.
Claims (5)
1. a kind of safety control for heated-air circulation oven, it includes main box, and is arranged on entering in main box
Wind pipeline, inner bag, blower fan（5）, heater（4）, it is characterised in that：It includes temperature controller（1）, temperature controller（1）
Output end respectively with breaker（2）, relay（3）Connection, temperature controller（1）Input and heater（4）Connection,
Breaker（2）Output end and relay（3）Input connection, relay（3）Output end and heater（4）Connection.
2. a kind of safety control for heated-air circulation oven according to claim 1, it is characterised in that：It is described disconnected
Road device（2）For shunted exciter tripping breaker.
3. a kind of safety control for heated-air circulation oven according to claim 1 or 2, it is characterised in that：Institute
State relay（3）For three-phase solid relay.
4. a kind of safety control for heated-air circulation oven according to claim 1 or 2, it is characterised in that：Institute
State heater（4）Including adding thermal resistance.
5. a kind of safety control for heated-air circulation oven according to claim 1, it is characterised in that：The temperature
Spend controller（1）To aid in the temperature controller of output contact with overtemperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621353226.0U CN206459485U (en) | 2016-12-12 | 2016-12-12 | A kind of safety control for heated-air circulation oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621353226.0U CN206459485U (en) | 2016-12-12 | 2016-12-12 | A kind of safety control for heated-air circulation oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206459485U true CN206459485U (en) | 2017-09-01 |
Family
ID=59693132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621353226.0U Active CN206459485U (en) | 2016-12-12 | 2016-12-12 | A kind of safety control for heated-air circulation oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206459485U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631509A (en) * | 2019-01-09 | 2019-04-16 | 深圳天祥质量技术服务有限公司 | Sample drying room |
-
2016
- 2016-12-12 CN CN201621353226.0U patent/CN206459485U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631509A (en) * | 2019-01-09 | 2019-04-16 | 深圳天祥质量技术服务有限公司 | Sample drying room |
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| GR01 | Patent grant |