CN201412888Y - Automatic CNC safety and energy-saving device for stove - Google Patents

Abstract

The utility model relates to a fully automatic numerical control safety and energy-saving device for stoves in the field of stoves, which includes a fan, a signal acquisition switch, a high-voltage igniter, an oil/gas system and a digital software controller. The solenoid valve on the oil/gas pipeline and the outlet set at the end of the oil/gas pipeline, the outlet is located in the furnace and corresponds to the ignition electrode of the high-voltage igniter, the signal acquisition switch collects whether the pot is placed on the stove, and transmits the signal to the digital After the digital software controller receives the signal that the pot has been placed on the stove, it sends a signal to the solenoid valve and the high-voltage igniter at the same time, so that when the solenoid valve is opened, the ignition electrode of the high-voltage igniter discharges to realize ignition. , after a period of ignition, the digital software controller sends a signal again to turn off the high-voltage igniter. The device is controlled by a digital circuit and is reliable in use. It can be made into a fuel oil/gas stove for use in restaurants, hotels and other places.

Description

Automatic CNC safety and energy-saving device for stove

technical field

The utility model relates to a stove, in particular to an energy-saving device for a fuel or gas stove.

Background technique

In the prior art, there is a full energy-saving device for stoves, which mainly includes a touch lever that can be moved by the pot, the inner bottom of the outlet is connected to the inlet pipeline, and the inlet pipeline is connected to the gas source through a solenoid valve and a manual valve that are electrically closed. , the other end of the touch lever is linked with the touch switch which is fixed under the cooker panel and is disconnected. The touch switch is connected to a control circuit, and the control circuit is composed of a main circuit and a high-voltage igniter; the main circuit includes a main Power supply, the main power supply supplies power to the parallel main relay and the time relay through the power switch and the touch switch, and the coil of the solenoid valve is connected in series with the normally open and delayed closed contact of the time relay at both ends of the time relay; the high-voltage ignition The two input ends of the device are connected to the main power supply, and the outlet is located in the furnace and corresponds to the ignition electrode of the high-voltage igniter. The switch is connected in series between the two output terminals of the rectifier circuit.

When working, turn on the power switch. When the pot is not placed on the outlet, the touch switch is connected, the main relay and the time relay are energized, the normally closed contact of the main relay is disconnected, and the high voltage igniter is disconnected; After the delay closing contact is energized, the delay closes, so that the solenoid valve coil is energized, and the solenoid valve is closed; when cooking, open the manual valve, place the pot on the outlet to press down the touch lever, and the touch lever drives the touch lever. The pressure switch is disconnected, the main relay and the time relay are de-energized, the normally open delay close contact of the time relay is disconnected, the solenoid valve coil is de-energized, the solenoid valve is opened, and the gas is supplied to the outlet. At the same time, the normally closed contact of the main relay Closed, the high-voltage igniter is connected, the ignition electrode works, and the gas in the outlet is ignited. The ignited gas heats up the probe of the temperature control switch. When the temperature reaches the set value, the temperature control switch is disconnected, and the high-voltage igniter is disconnected. Stop the ignition. At this time, the chef can cook. During the cooking process, the pot may leave the outlet for a short time, so that the time relay is energized. Due to the function of the normally open and delayed close contact of the time relay, the coil of the solenoid valve cannot be quickly activated. When it is energized, the solenoid valve can remain open, the outlet will not go out, and the temperature control switch will remain open. When the pot presses the touch lever again, the time relay will lose power quickly, and its normally open delay close contact will remain open. In the open state, the solenoid valve remains open, and the outlet flame continues to burn; when the dish needs to be out of the pot, the pot leaves the outlet, the touch switch is turned on, the time relay and the main relay are energized, and the normally open and closed contacts of the time relay are delayed Closed, the solenoid valve is closed with a delay, the outlet gas supply is cut off and the flame is turned off, and the temperature control switch is closed as the outlet temperature drops rapidly, but because the normally closed contact of the main relay is disconnected, the high-voltage igniter remains open, and the pot is placed again for the next time Make preparations at the exit; the utility model can automatically ignite and burn with the placement of the pot, and at the same time, it can automatically turn off the flame when the pot is picked up, avoiding the trouble of frequent manual ignition, reducing energy waste in the gap between dishes, and has the advantages of Good energy saving effect. Its shortcoming is: this cooking stove can't realize the digital control, and volume is bigger, needs bigger installation space, and the reliability of relay is poor.

Utility model content

The purpose of the utility model is to provide a fully automatic numerical control safety and energy-saving device for stoves, which is reliable in use, quick in action, convenient in installation and long in service life.

The purpose of this utility model is achieved in this way: a fully automatic numerical control safety and energy-saving device for a stove, including a blower fan, a signal acquisition switch, a high-voltage igniter and an oil/gas system arranged towards the air inlet of the stove hearth, and the oil/gas system includes an oil/gas system. The gas pipeline, the solenoid valve set on the oil/gas pipeline and the outlet set at the end of the oil/gas pipeline, the outlet is located in the furnace and corresponds to the ignition electrode of the high-voltage igniter, the device also includes a digital software controller, signal acquisition The switch collects whether the pot is placed on the stove, and transmits the collected signal to the digital software controller. After receiving the signal that the pot has been placed on the stove, the digital software controller sends signals to the solenoid valve and the high-voltage igniter at the same time , when the solenoid valve is opened, the ignition electrode of the high-voltage igniter discharges to realize ignition. After a period of ignition, the digital software controller sends a signal again to turn off the high-voltage igniter.

When it works, first the fan starts to send air into the furnace, when the pot is placed on the stove, the signal acquisition switch acts and sends a signal to the digital software controller, and the digital software controller works according to the program to open the solenoid valve, The oil/gas goes directly to the outlet. At the same time, the high-voltage igniter is energized, and the ignition electrode of the high-voltage igniter discharges, ignites the oil/gas, and the cooking can be carried out smoothly, and then the high-voltage igniter is powered off; when the pot is picked up from the stove, the digital The software controller sends out a signal after a delay, turns off the solenoid valve, and turns off the flame in the furnace. It can be seen from the above process that the utility model has a good energy-saving effect, avoids the empty burning of the pot after leaving the stove, and enables the stove to be automatically ignited and extinguished to reduce energy waste; compared with the prior art, due to the use of digital circuits To control, replace the use of relays, save costs, improve the reliability of use, its quick action, long service life. The device can be used on frequently used stoves such as restaurants and hotels, and can be made into oil or gas stoves.

In order to cut off the oil/gas conveniently, a manual valve is provided on the oil/gas pipeline in front of the solenoid valve.

In order to ensure that the oil/gas concentration in the furnace is within the safe use range, the power line of the digital software controller is connected to the power supply through the second switch and the first switch, and the power line of the fan is connected to the first switch and the second switch. between. The digital software controller can work only after the blower is powered on. The blower can blow away the high-concentration oil/gas in the stove to avoid deflagration and floating fire during ignition.

In order to protect the digital software controller, a fuse is connected in series on the power line of the digital software controller.

In order to improve the reliability of use, the solenoid valve is a power-off open solenoid valve. When a failure occurs, such as a fuse burns out, the solenoid valve is normally open, and the stove can automatically resume normal manual operation. Through program control, after the pot is placed on the stove, the electromagnetic valve is also kept powered off, which can save electric energy.

Description of drawings

Fig. 1 is a working principle diagram of the utility model.

Among them, 1 manual valve, 2 solenoid valve, 3 oil/gas pipeline, 4 outlet, 5 ignition electrode, 6 high voltage igniter, 7 digital software controller, 8 signal acquisition switch, 9 fuse, 10 fan, K1 first switch , K2 second switch.

Detailed ways

As shown in the figure, it is a fully automatic numerical control safety and energy-saving device for a stove, including a fan 10 set toward the air inlet of the stove hearth, a signal acquisition switch 8, a high-voltage igniter 6, an oil/gas system and a digital software controller 7, and the signal acquisition switch 8 can be It is a touch switch, an infrared switch, a photoelectric switch or an ultrasonic switch; the oil/gas system includes an oil/gas pipeline 3, a solenoid valve 2 installed on the oil/gas pipeline 3, and an oil/gas pipeline 3 in front of the solenoid valve 2. The manual valve 1 and the outlet 4 set at the end of the oil/gas pipeline 3, the solenoid valve 2 is a power-off open solenoid valve 2, the outlet 4 is located in the furnace and corresponds to the ignition electrode 5 of the high-voltage igniter 6, digital software The controller 7 is respectively connected with the signal acquisition switch 8, the high-voltage igniter 6 and the solenoid valve 2, and the control function is realized in the digital software controller, and the power line of the digital software controller 7 passes through the second switch K2 and the first switch K1 Connected to the power supply, the power line of the fan 10 is connected between the first switch K1 and the second switch K2, and the power line of the digital software controller 7 is also connected in series with a fuse 9; on, and transmit the collected signal to the digital software controller 7, after the digital software controller 7 receives the signal that the pot has been placed on the stove, it sends a signal to the solenoid valve 2 and the high-voltage igniter 6 at the same time, so that the solenoid valve When the valve 2 is opened, the ignition electrode 5 of the high-voltage igniter 6 discharges to realize ignition. After ignition for a period of time, the digital software controller 7 sends a signal again to turn off the high-voltage igniter 6 .

When working, first close the first switch K1 and the second switch K2, start the fan 10, supply air to the furnace, and the digital software controller 7 is ready, then open the manual valve 1 to prepare for the oil/gas in the furnace. Prepare, when the pot is placed on the stove, the signal acquisition switch 8 acts to send a signal to the digital software controller 7, and the digital software controller 7 works according to the program, so that the solenoid valve 2 is powered off and opened, and the oil/gas directly reaches the outlet 4 At the same time, the high-voltage igniter 6 is energized, the ignition electrode 5 of the high-voltage igniter 6 discharges, and the oil/gas is ignited, and the cooking can be carried out smoothly, and then the high-voltage igniter 6 is powered off; The software controller 7 sends a signal with a time delay, turns off the electromagnetic valve 2, and extinguishes the flame in the furnace.

Claims (6)

1, cooking stove full-automatic numerical control safe energy saving device, comprise the blower fan that is provided with towards the hearth of stove air inlet, the signals collecting switch, isolating high-pressure ignitor and oil/gas system, described oil/gas system comprises oil/feed channel, be arranged on magnetic valve and the outlet that is arranged on oil/feed channel end on oil/feed channel, outlet is positioned at burner hearth and corresponding with the ignitor of isolating high-pressure ignitor, it is characterized in that: this device also comprises digital software controller, the collection signal output part of signals collecting switch connects digital software controller, and the signal output part of digital software controller connects magnetic valve and isolating high-pressure ignitor simultaneously.

2, cooking stove full-automatic numerical control safe energy saving device according to claim 1 is characterized in that: the oil/feed channel before the described magnetic valve is provided with hand-operated valve.

3, cooking stove full-automatic numerical control safe energy saving device according to claim 1 and 2, it is characterized in that: the power line of described digital software controller links to each other with power supply with first switch through second switch, and the power line of blower fan is connected between first switch and the second switch.

4, cooking stove full-automatic numerical control safe energy saving device according to claim 1 and 2 is characterized in that: be serially connected with fuse on the power line of described digital software controller.

5, cooking stove full-automatic numerical control safe energy saving device according to claim 1 and 2 is characterized in that: described magnetic valve is outage open-type magnetic valve.

6, cooking stove full-automatic numerical control safe energy saving device according to claim 1 and 2, it is characterized in that: described signals collecting switch is touch-pressure switch, infrared switch, optoelectronic switch or supersonic switch.

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