TWI581931B - Energy saving and uniform heat flow control system and method for multi - layer oven - Google Patents

Description

Energy-saving uniform heat flow temperature control system and method for multi-layer oven

The invention relates to an oven, in particular to an energy-saving uniform heat flow temperature control system and method for a multi-layer oven.

In the production of existing slate, the surface of the slate must be coated with a rubber material for reinforcement, and then after two-stage baking operation, waiting for the next stage of processing, in the above baking operation, most of the electricity is dependent on electric energy. Heating, therefore, consumes a considerable amount of power, and since the environment during baking is not sealed, heat is easily lost in a large amount, so that the cost of electricity cannot be lowered.

Accordingly, it is an object of the present invention to provide an energy efficient uniform heat flow temperature control system and method for a multi-layer oven.

Therefore, the energy-saving uniform heat flow temperature control system of the multi-layer oven of the present invention is applied to a multi-layer oven having a plurality of air outlets, the temperature control system comprising a plurality of heating units, a plurality of fan units, a plurality of temperature sensors, and a An analog output unit, an analog input unit, and a control unit.

The heating units are located outside the multi-layer oven and correspond The fan unit is disposed adjacent to the heating units, the temperature sensors are disposed adjacent to the heating units, and the analog output unit is electrically connected and drives the heating units and the fan units to operate. The analog input unit is electrically connected to the temperature sensors and outputs a plurality of temperature information corresponding to the temperature sensors, and the control unit is electrically connected to the analog output unit and the analog input unit respectively, and is operated according to the temperature information. And generating a plurality of control signals for controlling the operation of the heating unit and the fan units.

Therefore, the energy-saving uniform heat flow temperature control method of the multi-layer oven of the present invention is applied to a multi-layer oven, the multi-layer oven has a plurality of air outlets, and the temperature control method first prepares a plurality of heating units disposed at the air outlets, and the plurality of adjacent air heaters a fan unit provided by the heating unit, and a plurality of temperature sensors disposed adjacent to the heating units, and then receiving the temperature signals measured by the temperature sensors by a type of input unit, and converting the signals into digital signals Inputting the converted complex temperature information into a control unit, the control unit performs operations according to the temperature information, and respectively outputs corresponding control signals to an analog output unit, and finally the analog output unit converts the control signals into analog signals It is then output to the heating units and the fan units to control the heating temperature and the air volume.

The utility model has the advantages that: the heating unit, the fan unit, the temperature sensors and the control unit are disposed in the multi-layer oven, so that the hot air inside the multi-layer oven is not dissipated and stable Temperature control, so it can save a lot of power.

2‧‧‧heating unit

21‧‧‧Controlled rectifier module

22‧‧‧Electric heating wire module

3‧‧‧Fan unit

31‧‧‧Inverter Module

32‧‧‧Fan module

4‧‧‧Temperature Sensor

5‧‧‧ analog output unit

6‧‧‧ analog input unit

7‧‧‧Control unit

8‧‧‧Circular duct

9‧‧‧Multilayer oven

91‧‧‧ vents

92‧‧‧Slate

101-104‧‧‧Steps for energy-saving uniform heat flow temperature control in multi-layer ovens

Z‧‧‧Vertical direction

Other features and effects of the present invention will be described with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of an embodiment of an energy-saving uniform heat flow temperature control system and method for a multi-layer oven of the present invention; FIG. 2 is a block diagram of the system of the embodiment; FIG. A flow chart of an example; and Figure 4 is a view similar to Figure 2 illustrating the flow direction of the air.

Referring to Figures 1, 2 and 3, an embodiment of the energy-saving uniform heat flow temperature control system and method of the multi-layer oven of the present invention is applied to a multi-layer oven 9, which has an eight-air port 91 and is internally provided with ten Six slabs 92 to be baked, the vents 91 are respectively located on opposite sides of the multi-layer oven 9, and the vents 91 on the same side are spaced apart in a vertical direction Z, and the multi-layer oven is energy-saving evenly The heat flow temperature control system comprises eight heating units 2, eight fan units 3, eight temperature sensors 4, an analog output unit 5, an analog input unit 6, a control unit 7, and a four-cycle air duct 8.

The heating units 2 are located outside the multi-layer oven 9 and are disposed corresponding to the tuyere 91.

Each heating unit 2 includes a controlled rectifier module 21 electrically connected to the analog output unit 5, and a heating wire module 22 electrically connected to the controlled rectifier module 21. In this embodiment, each heating wire module 22 is composed of five heating wire elements.

The fan units 3 are disposed adjacent to the heating units 2.

Each fan unit 3 includes a frequency conversion module 31 electrically connected to the analog output unit 5, and a fan module 32 electrically connected to the frequency conversion module 31. . In the embodiment, the fan modules 32 are located on opposite sides of the air outlets 91 of the heating wire modules 22 .

The temperature sensors 4 are disposed adjacent to the heating units 2. In this embodiment, the temperature sensors 4 are located on one side of the heating module 22 opposite to the fan modules 32.

The analogy is electrically coupled to the output unit 5 and drives the heating units 2 and the fan units 3 to operate.

The analog input unit 6 is electrically connected to the temperature sensors 4 and outputs a plurality of temperature information corresponding to the temperature sensor 4.

The control unit 7 is electrically connected to the analog output unit 5 and the analog input unit 6, and is operated according to the temperature information to generate sixteen control signals for controlling the operation of the heating unit 3 and the fan units 3.

Each of the circulation ducts 8 is disposed between the two fan modules 32 adjacent in the vertical direction Z.

In this embodiment, the four tuyeres 91 and the two circulating ducts 8 on the opposite sides of the upper side jointly construct a circulation passage, and the four tuyeres 91 and the two circulating ducts 8 on the opposite sides of the lower side are common. Another circulation channel is constructed. The four fan modules 32 located on each of the circulation channels are configured to blow, blow, blow, and blow the air to the air outlets 91 to wind the heating wire modules 22 The generated hot air passes through the temperature sensors 4 and the tuyeres 91, respectively.

The energy-saving uniform heat flow temperature control method of the multi-layer oven comprises the following steps 101-104.

In the step 101, the heating units 2 disposed in the air outlets 91, the fan units 3 disposed adjacent to the heating units 2, and the temperature sensing disposed adjacent to the heating units 2 are first prepared. Device 4.

In step 102, the temperature signal measured by the temperature sensors 4 is received by the analog input unit 6, and the converted temperature information is input to the control unit 7 after being converted into a digital signal.

In step 103, the control unit 7 performs a proportional-integral-derivative (PID) control law operation according to the temperature information, and outputs corresponding control signals to the analog output unit 5, respectively.

In step 104, the analog output unit 5 converts the control signals into analog signals and outputs them to the heating unit 2 and the fan units 3 to control the heating temperature and the air volume.

Referring to FIGS. 2 and 4, in use, after the temperature is measured by the temperature sensors 4, the control unit 7 performs proportional-integral-derivative according to the temperature information converted by the analog input unit 6 and a preset target temperature. Controlling the law to generate a plurality of control signals for controlling the operation of the heating unit 2 and the fan units 3 respectively, thereby achieving the effect of controlling the temperature in the multi-layer oven 9, and since the multi-layer oven 9 And the circulating ducts 8 are in a closed environment, so that the heated hot air can be avoided from being dissipated, so that the power cost can be greatly reduced, and due to the arrangement of the circulating ducts 8, each of the circulation passages is heated. The hot air can circulate and maintain a uniform heat flow. Therefore, the present invention can greatly save power and provide a stable heat flow for temperature control as compared with the existing stone baking operation.

In summary, the heating unit 2, the fan units 3, the temperature sensors 4, and the control unit 7 are disposed in the multi-layer oven 9, so that the hot air inside the multi-layer oven 9 is not It will be dissipated and stable temperature control, so that power can be saved greatly, so the object of the present invention can be achieved.

However, the above is only the embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and the patent specification of the present invention are still It is within the scope of the patent of the present invention.

2‧‧‧heating unit

22‧‧‧Electric heating wire module

3‧‧‧Fan unit

32‧‧‧Fan module

4‧‧‧Temperature Sensor

8‧‧‧Circular duct

9‧‧‧Multilayer oven

91‧‧‧ vents

92‧‧‧Slate

Z‧‧‧Vertical direction

Claims (10)

An energy-saving uniform heat flow temperature control system for a multi-layer oven is applied to a multi-layer oven, the multi-layer oven has a plurality of air outlets, and the temperature control system comprises: a plurality of heating units located outside the multi-layer oven, and corresponding to the air outlets Setting; a plurality of fan units disposed adjacent to the heating units; a plurality of circulating air ducts, each of the circulating ducts being disposed between the adjacent two fan units; a plurality of temperature sensors disposed adjacent to the heating units; a type of ratio output unit electrically connecting and driving the heating unit and the fan unit to operate; a type of input unit electrically connecting the temperature sensors and outputting a plurality of temperature information corresponding to the temperature sensor; and a control The unit is electrically connected to the analog output unit and the analog input unit, and is operated according to the temperature information and a preset target temperature to generate a plurality of control signals for controlling the operation of the heating unit and the fan unit. The energy-saving uniform heat flow temperature control system of the multi-layer oven according to claim 1, wherein each heating unit comprises a controlled rectifier module electrically connected to the analog output unit, and an electrically connected rectifier mold Group of heating wire modules. The energy-saving uniform heat flow temperature control system of the multi-layer oven according to claim 2, wherein each fan unit comprises an electrical connection unit of the analog output unit The frequency conversion module and a fan module electrically connected to the frequency conversion module. The energy-saving uniform heat flow temperature control system of the multi-layer oven according to claim 3, wherein the fan modules are located on one side of the air outlets opposite to the heating wire modules, and the temperature sensors are located at the same The electric heating wire module is opposite to one side of the fan modules, so that the fan modules can pass the hot air generated by the electric heating wire modules through the temperature sensors and the air outlets respectively. The energy-saving uniform heat flow temperature control system of the multi-layer oven according to claim 4, wherein each of the circulation ducts is disposed between two fan modules adjacent in a vertical direction. An energy-saving uniform heat flow temperature control method for a multi-layer oven is applied to a multi-layer oven having a plurality of air outlets, the temperature control method comprising the following steps: (A) preparing a plurality of heating units disposed at the tuyères, a plurality of fan units disposed adjacent to the heating units, a plurality of circulating air ducts, and a plurality of temperature sensors disposed adjacent to the heating units, each circulating duct is disposed between two adjacent fan units; B) receiving, by a type of input unit, a temperature signal measured by the temperature sensors, and converting the converted plurality of temperature information into a control unit after converting into a digital signal; (C) the control unit according to the temperature The information is calculated with a preset target temperature, and the corresponding control signals are respectively output to an analog output unit; and (D) the analog output unit converts the control signals into analogies The signal is output to the heating units and the fan units to control the heating temperature and the air volume. The energy-saving uniform heat flow temperature control method of the multi-layer oven according to claim 6, wherein each heating unit comprises a controlled rectifier module electrically connected to the analog output unit, and an electrically connected rectifier mold Group of heating wire modules. The energy-saving uniform heat flow temperature control method of the multi-layer oven according to claim 7, wherein each fan unit comprises a frequency conversion module electrically connected to the analog output unit, and a fan module electrically connected to the frequency conversion module. The energy-saving uniform heat flow temperature control method of the multi-layer oven according to claim 8, wherein the fan modules are located on one side of the air outlets opposite to the heating wire modules, and the temperature sensors are located at the same The electric heating wire module is opposite to one side of the fan modules, so that the fan modules can pass the hot air generated by the electric heating wire modules through the temperature sensors and the air outlets respectively. The energy-saving uniform heat flow temperature control method of the multi-layer oven according to claim 6, wherein in the step (C), the control unit performs a proportional-integral-derivative control rule operation according to the temperature information, and respectively outputs corresponding Control signals to the analog output unit.