TW202012848A - Gas stove system and control method thereof capable of preventing the leaked gas of one combustor from being ignited by another combustor - Google Patents

Abstract

The invention discloses a gas stove system and a control method thereof. The gas stove system includes a switch valve, a plurality of combustion assemblies and a control device, wherein the switch valve is in communication with a gas source and is controlled to be turned on or off for allowing gas to pass through or cutting off gas. Each combustion assembly includes a gas regulating valve, a combustor, an ignition and induction component and an ignition switch, wherein the gas regulating valve is used to regulate the flow of gas passing through. The combustor can be ignited by the ignition and induction component controlled by the ignition switch. The ignition and induction component is used to detect whether a flame of the combustor is ignited within a predetermined period of time and, if so, the switch valve is controlled to be turned off to cut off the gas conveyed to the gas regulating valve. As a result, it is able to avoid gas leakage which may cause a fire disaster and the like to harm users.

Description

Gas stove system and its control method

The invention relates to a gas furnace; in particular, it refers to a gas furnace system and control method which can judge the flameout and block the gas.

Among the stoves used to cook food today, gas stoves are the most commonly used stoves by people. The reason is that compared with electric stoves, gas stoves produce higher heat energy by burning gas, so the heating time and The reaction time of firepower switching is faster than that of electric stove. However, when the user uses the gas stove to cook food or water, it may happen that the gas is not ignited or the flame is extinguished. As a result, the gas will continue to leak out, resulting in accidents.

Especially for gas furnaces with more than two ports, take the two-port gas furnace as an example. Two burners are connected to two thermal power regulating valves. When the gas output from one of the burners is not ignited or the flame is extinguished, the gas leaks. At this time, if there is a fire in another burner, it is very likely that the leaked gas will be ignited by the fire of the other burner, and an instant flame will be produced, which will cause the user to be frightened. Otherwise, it may cause fire.

Therefore, how to increase the safety of gas stoves with more than two ports is the design focus of gas stoves.

In view of this, the object of the present invention is to provide a gas furnace system and a control method thereof, which can prevent the gas leaked from one burner from being ignited by another burner.

In order to achieve the above object, a gas furnace system provided by the present invention includes an on-off valve, a plurality of combustion assemblies and a control device, wherein the on-off valve communicates with a gas source, and the on-off valve is controlled to be opened or closed for Gas passes or blocks gas; each combustion assembly includes a gas regulating valve, a burner, an ignition and induction assembly, and an ignition switch, wherein the gas regulating valve communicates with the switching valve and is used for regulating Gas flow rate, the burner communicates with the gas regulating valve, and is used to burn gas to generate flames. The ignition and induction components are arranged beside the burner. The ignition and induction components are controlled to ignite the burner and detect the combustion The flame generated by the device, the ignition switch is triggered to generate an ignition signal corresponding to the ignition and induction components; and the control device is electrically connected to the ignition switches, the ignition and induction components and the switch valve, the control device is After receiving the ignition signal from one of the ignition switches, the corresponding one of the ignition and induction components is controlled to ignite and the switch valve is opened, and the controlled ignition and induction components are not detected after a predetermined time During the flame, the on-off valve is controlled to close to simultaneously interrupt the gas supplied to the gas regulating valves.

The invention provides a control method for a gas furnace system. The gas furnace system includes a switch valve, a plurality of gas regulating valves, a plurality of burners, and a plurality of ignition and induction components, wherein the switch valve is connected to a gas source The gas control valves are connected to the on-off valve for adjusting the gas flow through; the burners are connected to the gas control valves; the ignition and induction components are provided beside the burners; the control method includes The following steps: A. control one of the ignition and induction components to ignite the corresponding one of the burners, and control the opening and closing of the on-off valve; B. detect whether the burner in step A is through the ignition and induction components A flame is generated within a predetermined time: if it is, keep the on-off valve open; if not, control the on-off valve to be closed to simultaneously interrupt the gas supplied to the gas regulating valves.

The effect of the present invention is that when one of the burners is not ignited when the gas is ignited, the gas supplied to the gas regulating valves can be blocked at the same time, effectively preventing the gas leaking from one of the burners from being burned by the other Hazardous situations occur when the burner ignites.

In order to explain the present invention more clearly, the preferred embodiments are described in detail below with reference to the drawings. Please refer to FIG. 1, which is a gas furnace system 100 according to a preferred embodiment of the present invention, which includes a pressure regulating valve 10, a plurality of combustion assemblies 20 and a control device 30.

The pressure regulating valve 10 communicates with a gas source G. In this embodiment, the pressure regulating valve 10 has a valve body 11 with an inlet 11a and an outlet 11b. The valve body 11 is provided with a regulator ) 12 and a switching valve 14 are located between the inlet 11a and the outlet 11b, wherein the pressure regulator 11 communicates with the gas source G, the pressure regulator 11 is used to adjust the input gas pressure to provide a stable pressure gas output, this In the embodiment, the gas pressure output by the voltage regulator 11 is 280 mmH ₂ O. The on-off valve 14 is controlled to open or close. When the on-off valve 14 is opened, gas is allowed to pass through; when the on-off valve 14 is closed, the gas is blocked. In this embodiment, the on-off valve 14 is a normally closed (Normal Close) electromagnetic on-off valve. In other embodiments, the positions of the voltage regulator 12 and the switching valve 14 can also be interchanged.

Each of the combustion assemblies 20 includes a gas regulating valve 22, a burner 24, an ignition and induction assembly 26 and an ignition switch 28, wherein the gas regulating valve 22 communicates with the switching valve 14 and the burner 24, and the ignition The induction unit 26 is disposed beside the burner 24, and the ignition and induction unit 26 in this embodiment includes an ignition unit 26a and an induction unit 26b, wherein the ignition unit 26a and the induction unit 26b are electrically connected to the ignition switch 28至控制装置30。 To the control device 30. The sensing element 26b takes a thermocouple as an example. The ignition switch 28 is provided in the gas regulating valve 22.

Please refer to FIG. 2 again, the gas regulating valve 22 is used to regulate the flow rate through the gas. In this embodiment, the gas regulating valve 22 uses a manual gas regulating valve as an example, but it is not limited to this, and may also be motor controlled. Open the gas control valve in degrees. The gas regulating valve 22 has a knob 22a for the user to rotate. When the knob 22a rotates, it will change the opening degree of the valve inside the gas regulating valve 22, thereby regulating the gas flow through the gas regulating valve 22. When the knob 22a is turned to touch the ignition switch 28, the control device 30 generates an ignition signal and transmits it to the ignition assembly 26a, so that the ignition assembly 26a generates a spark to ignite the burner 24 to ignite the gas flowing to the burner 24 Then, the burner 24 generates a flame, and the flame generated by the burner 24 is detected by the induction component 26b.

In addition, each of the combustion assemblies 20 further includes a detection component 29, and the detection component 29 is disposed in the gas regulating valve 22 and electrically connected to the control device 30, wherein the detection component 29 is used to detect the corresponding The opening and closing state of the gas regulating valve 22. When the knob 22a rotates to the touch detection component 29, the detection component 29 can detect that the valve is in the open state; when the knob 22a rotates to the position of closing the valve, the detection component 29 can detect that the valve is closed. status. In other embodiments, the gas regulating valve 22 may be an electronic regulating valve, and the opening of the valve driven by the motor is controlled by the control device 30 to adjust the gas flow rate; the ignition switch 28 may also be independent of the gas regulating valve 22 For users to press and touch.

The control device 30 is used to control the ignition components 26a to ignite, control the opening and closing of the on-off valve 14, and receive the state of the flame sensed by the sensing component 26b.

The control method of this embodiment can be performed by the structure of the gas furnace system described above. The control method includes the following steps shown in FIG. 3:

First, in step S1, the user turns the knob 22a, and then the gas regulating valve 22 is opened.

In step S2, when the knob 22a touches the corresponding ignition switch 28, the control device 30 controls the corresponding ignition assembly 26a to ignite the corresponding burner 24, and the control device 30 simultaneously controls the switch valve 14 to open to allow gas to flow to the burner twenty four.

In step S3, whether the burner 24 in step S2 generates a flame within a predetermined time is detected through the sensing component 26b. In this embodiment, the predetermined time is 10 seconds.

In step S3, if the sensing component 26b detects flame, which means that the ignition is normal, then step S4a is executed to keep the on-off valve 14 open; if the sensing component 26b does not detect flame, which indicates that the ignition is abnormal, then step S4b is executed, at this time The control device 30 controls the on-off valve 14 to be closed to simultaneously interrupt the gas supplied to the gas regulating valve 22.

In this embodiment, after the flame is detected in step S4a, a step S5 is further included, in which any flame detected by any sensing element 26b turns into a flame not detected, and the detection element 29 corresponding to any sensing element 26b When the on-off state of the gas regulating valve 22 is detected as an open state, it means that the flame is abnormally extinguished. At this time, the control device 30 controls the on-off valve 14 to close, so as to interrupt the gas supply to the gas regulating valves 22 at the same time.

In other embodiments, after the flame is detected in step S4a, the flame is detected in any sensing element 26b, and the detecting element 29 corresponding to any sensing element 26b detects the opening and closing state of the gas regulating valve When it is in a closed state, it means that the valve inside the gas regulating valve 22 is not normally closed or the sensing component 26b is abnormal. At this time, the control device 30 controls the on-off valve 14 to close, so as to interrupt the gas supplied to the gas regulating valves 22 at the same time.

In summary, according to the gas furnace system and control method of the present invention, by detecting any of the burners when the ignition is abnormal or the flame is abnormally extinguished, at the same time, the gas supplied to the gas regulating valves is blocked. To avoid the gas leakage of one burner and the hazard caused by the ignition of the other burner. In this way, the safety of the user in using the burner is improved.

The above is only the preferred and feasible embodiments of the present invention, and any equivalent changes in applying the description of the present invention and the scope of patent application should be included in the patent scope of the present invention.

100: gas furnace system 10: pressure regulating valve 11: valve body 11a: inlet 11b: outlet 12: pressure regulator 14: switching valve 20: combustion assembly 22: gas regulating valve 22a: turntable 24: burner 26: ignition and Sensor component 26a: Ignition component 26b: Sensor component 28: Ignition switch 29: Detection component 30: Control device G: Gas source

1 is a schematic diagram of a gas furnace system according to a preferred embodiment of the present invention; FIG. 2 is a gas regulating valve of the above preferred embodiment; and FIG. 3 is a flow chart of the control method of the above preferred embodiment.

100: gas furnace system

10: pressure regulator

11: Valve body

11a: entrance

11b: Export

12: voltage regulator

14: On-off valve

20: combustion assembly

22: Gas control valve

22a: turntable

24: burner

26: Ignition and induction components

26a: Ignition assembly

26b: Inductive components

28: Ignition switch

29: Detect components

30: Control device

G: Gas source

Claims (9)

A gas furnace system includes: a switch valve connected to a gas source, the switch valve is controlled to open or close for gas to pass or block gas; a plurality of combustion assemblies, each of which includes a gas adjustment A valve, a burner, an ignition and induction assembly, and an ignition switch, wherein: the gas regulating valve communicates with the switching valve and is used to regulate the flow of gas passing through; the burner communicates with the gas regulating valve and is used to Combustion of gas produces flames; the ignition and induction components are arranged beside the burner, the ignition and induction components are controlled to ignite the burner and detect the flames produced by the burner; the ignition switch is triggered to generate corresponding ignition And an ignition signal of the induction component; a control device electrically connecting the ignition switches, the ignition and induction components and the on-off valve, the control device controls the corresponding after receiving the ignition signal of one of the ignition switches One of the ignition and induction components ignites and controls the on-off valve to open, and when the controlled ignition and induction component does not detect flame after a predetermined time, controls the on-off valve to close to interrupt the supply to the Some gas control valve gas. According to the gas furnace system of claim 1, each of the combustion assemblies further includes a detection component, the detection component is disposed at a corresponding one of the gas regulating valves and electrically connected to the control device; each detection component detects Measure the corresponding opening and closing status of each of the gas regulating valves; the control device converts the detected flame to the undetected flame in any of the ignition and induction components, and the corresponding When the detecting component detects that the corresponding opening and closing state of the gas regulating valve is an open state, the closing valve is controlled to close to simultaneously interrupt the gas supplied to the gas regulating valves. According to the gas furnace system of claim 1, each of the combustion assemblies further includes a detection component, the detection component is disposed at a corresponding one of the gas regulating valves and electrically connected to the control device; each detection component detects Measure the opening and closing status of the corresponding gas regulating valve; the control device detects flame in one of the ignition and induction components, and the other ignition and induction component changes from detected flame to undetected flame, and When the detection component corresponding to the other ignition and induction component detects that the corresponding opening and closing state of the gas regulating valve is an open state, the closing valve is controlled to close to simultaneously interrupt the supply of gas to the gas Control valve gas. According to the gas furnace system of claim 1, each of the combustion assemblies further includes a detection component, the detection component is disposed at a corresponding one of the gas regulating valves and electrically connected to the control device; each detection component detects Measure the corresponding opening and closing status of each of the gas regulating valves; the control device detects the flame from any of the ignition and induction components, and detects the correspondence in any of the detection components corresponding to the ignition and induction components When the opening and closing state of the gas regulating valve is a closed state, the closing valve is controlled to be closed to simultaneously interrupt the gas supplied to the gas regulating valves. The gas furnace system according to claim 1, comprising a pressure regulating valve, the pressure regulating valve has a valve body, the valve body is provided with a pressure regulator and the on-off valve, the pressure regulator is used to adjust the input gas pressure In order to provide gas output with stable pressure. A control method of a gas furnace system, the gas furnace system includes a switch valve, a plurality of gas regulating valves, a plurality of burners, and a plurality of ignition and induction components, wherein the switch valve is connected to a gas source; the gas The regulating valve communicates with the on-off valve for regulating the flow rate of gas passing through; the burners are respectively communicated with the gas regulating valves; the ignition and induction components are arranged beside the burners; the control method includes the following steps: A 1. Control one of the ignition and induction components to ignite the corresponding one of the burners, and control the on-off valve to open; B. Detect whether the burner in step A is generated within a predetermined time through the ignition and induction components Flame: If yes, keep the on-off valve open; if not, control the on-off valve to close to interrupt the gas supply to the gas control valves. The control method of a gas furnace system according to claim 6, wherein after detecting that the burner generates flame in step B, the method further includes: any one of the ignition and induction components is converted from detected flame to undetected flame, And when the gas regulating valve corresponding to any one of the ignition and induction components is in an open state, the closing valve is controlled to be closed to simultaneously interrupt the gas supplied to the gas regulating valves. The control method of a gas furnace system according to claim 6, wherein after detecting that the burner generates flame in step B, the method further includes: detecting flame in one of the ignition and induction components, and the other of the ignition and induction components From the detected flame to the undetected flame, and when the gas regulating valve corresponding to the other ignition and induction component is in an open state, the closed valve is controlled to close to interrupt the supply to the Some gas control valve gas. The control method of a gas furnace system according to claim 6, wherein after detecting that the burner generates flame in step B, the method further includes: detecting flame in any of the ignition and induction components, and in any of the ignition and induction components When the corresponding gas regulating valve is in a closed state, the closing valve is controlled to close to simultaneously interrupt the gas supplied to the gas regulating valves.

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