JP2000146191A - Catalyst combustion apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a catalyst combustion apparatus free from a problem of emitting an unburned gas. SOLUTION: A catalyst combustion apparatus is provided with a combustion section 10, an operation section 18 and a cooking pan 17, and the combustion section 10 comprises a combustion catalyst 11, a combustion chamber 12, a gas injection nozzle 13, an air suction ejector 14, an air suction inlet 16 and an ignition plug 15, and the operation section 18 comprises an on-off valve 19 and an ignition device 21, and the on-off valve 19 is kept open by an electromotive force of a thermocouple 31 provided in the combustion chamber 12. Safety of the catalyst combustion apparatus is enhanced by closing the on-off valve 19 at the time of an ignition failure and shutting off fuel so as to prevent an unburned gas from flowing outside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a catalytic combustor for use in an apparatus that heats a gas as a fuel by catalytic combustion.

[0002]

2. Description of the Related Art A conventional catalytic burner of a heating apparatus using catalytic combustion will be described with reference to FIG. A gas cylinder 2 is mounted on a fuel portion at the bottom of the case body 1, and the gas cylinder 2 is connected to a gas projecting nozzle 3 via a valve,
The gas projecting nozzle 3 is connected to a mixing pipe 4 into which external air is introduced, and the upper end of the mixing pipe 4 is guided to a combustion section provided above the fuel section, and is ventilated so as to surround the jet section at the upper end of the mixing pipe. An oxidizing catalyst 5 having an oxidizing property is provided, an ignition heater 6 is provided in a path for ejecting the mixed gas, and a heat exchange plate 9 is provided on the outer periphery of the oxidizing catalyst 5, and the heat exchange plate 7 and the oxidizing catalyst are provided. The upper surface of 5 is a heating unit that contacts the bottom of the container 8, and the combustion unit and the fuel unit are a catalytic combustor divided by a reflector 9. Next, the operation will be described. The fuel gas is jetted and supplied to the oxidizing catalyst 5 through the gas projecting nozzle 3 and the mixing pipe 4, and the catalytic combustion is started by the action of the oxidizing catalyst 5 based on the initial ignition. The heat was efficiently exchanged with the water in the container 8 through the plate 7 to heat and keep the temperature.

[0003]

The above-described catalytic combustor has no means for confirming ignition, and has a problem that unburned gas flows out if ignition fails. There is also a problem that there is no means for shutting off fuel when an unsafe state such as an abnormal temperature or a fall occurs during combustion.

It is a first object of the present invention to provide a catalytic combustor with improved safety by detecting a temperature rise due to ignition and shutting off fuel at the time of non-ignition. It is a second object of the present invention to provide a catalytic combustor in which fuel is shut off at abnormal temperatures to improve safety. A third object of the present invention is to provide a catalytic combustor with improved safety by shutting off fuel when there is no cooking pot. It is a fourth object of the present invention to provide a catalytic combustor that further improves safety by shutting off fuel when the combustor falls. A fifth object of the present invention is to provide a catalytic combustor in which operability and economy are improved by shutting off fuel depending on the temperature of the cooking pot.
It is a sixth object of the present invention to provide a catalytic combustor that maintains safety and improves operability and economy at the same time when there is no cooking pot or when the cooking pot is at an abnormal temperature.

[0005]

According to a first aspect of the present invention, there is provided a combustion unit, an operation unit, and a cooking pot, wherein the combustion unit includes a combustion catalyst, a combustion chamber, a gas ejection nozzle, and an air suction ejector. , An air suction port, a spark plug, and an operating unit having an on-off valve for opening and closing the flow of fuel and an ignition device, wherein the on-off valve is kept open by an electromotive force of a thermocouple provided in the combustion chamber. It is a catalyst combustor. According to the present invention, the temperature rise due to ignition is detected as the electromotive force of the thermocouple, and the on-off valve is held open. Therefore, at the time of non-ignition, the on-off valve is closed to shut off the fuel, and the catalytic combustor with improved safety is provided. Is obtained.

In order to achieve the second object, the present invention comprises a combustion section, an operation section, and a cooking pot, wherein the combustion section has a combustion catalyst, a combustion chamber, a gas ejection nozzle, an air suction ejector, an air suction port, and an ignition port. It has a plug, the operation unit has an on-off valve for opening and closing the flow of fuel, and an ignition device, and the on-off valve is kept open by the electromotive force of a thermocouple provided in the combustion chamber, and at the bottom of the combustion chamber Is a catalytic combustor in which a thermostat is attached, and the circuit of the on-off valve and the thermocouple is opened and closed by the thermostat. According to the present invention, when the temperature becomes abnormal, the thermostat opens the circuit of the on-off valve and the thermocouple and closes the on-off valve, so that the fuel is shut off, and a catalytic combustor with improved safety can be obtained.

In order to achieve the third object, the present invention comprises a combustion section, an operation section, and a cooking pot, and the combustion section has a combustion catalyst, a combustion chamber, a gas ejection nozzle, an air suction ejector, an air suction port, and an ignition port. It has a plug, the operation unit has an on-off valve for opening and closing the flow of fuel and an ignition device, the on-off valve is kept open by the electromotive force of a thermocouple provided in the combustion chamber, the combustion unit An open / close switch and a cooking pot detecting means are provided, and the circuit of the open / close valve and the thermocouple is configured to be opened and closed by the open / close switch, thereby providing a catalytic combustor in which the cooking pot detecting means and the open / close switch are linked. According to the present invention, the on-off valve does not hold open when there is no cooking pot, so that a catalytic combustor with improved safety without fuel flow can be obtained.

According to a fourth aspect of the present invention, there is provided a combustion unit, an operation unit, and a cooking pot, wherein the combustion unit includes a combustion catalyst, a combustion chamber, a gas ejection nozzle, an air suction ejector, an air suction port, and an ignition port. It has a plug, the operation unit has an on-off valve for opening and closing the flow of fuel and an ignition device, the on-off valve is kept open by the electromotive force of a thermocouple provided in the combustion chamber, the combustion unit An on-off switch and a fall detecting means are provided, and the circuit of the on-off valve and the thermocouple is opened and closed by the on-off switch, so that a catalytic combustor in which the fall detecting means and the on-off switch are linked. ADVANTAGE OF THE INVENTION According to this invention, when a catalytic combustor falls, the on-off valve cannot be kept open and the fuel is shut off, so that a catalytic combustor with improved safety can be obtained.

According to a fifth aspect of the present invention, there is provided a combustion section, an operation section, and a cooking pot, wherein the combustion section includes a combustion catalyst, a combustion chamber, a gas ejection nozzle, an air suction ejector, an air suction port, and an ignition port. It has a plug, the operation unit has an on-off valve for opening and closing the flow of fuel and an ignition device, the on-off valve is kept open by the electromotive force of a thermocouple provided in the combustion chamber, the combustion unit An open / close switch and a cooking pot temperature detecting means are provided, and the circuit of the open / close valve and the thermocouple is configured to be opened and closed by the open / close switch, thereby providing a catalytic combustor in which the cooking pot temperature detecting means and the open / close switch are linked. . According to the invention,
By detecting the temperature of the cooking pot and shutting off the fuel, there is no need to pay attention during cooking.Furthermore, since the end of cooking is automatically detected and the fuel is stopped, there is no unnecessary combustion and operability and economy. Thus, a catalytic combustor having an improved performance can be obtained.

According to a sixth aspect of the present invention, there is provided a combustion unit, an operation unit, and a cooking pot, wherein the combustion unit includes a combustion catalyst, a combustion chamber, a gas ejection nozzle, an air suction ejector, an air suction port, and an ignition port. It has a plug, the operation unit has an on-off valve for opening and closing the flow of fuel and an ignition device, the on-off valve is kept open by the electromotive force of a thermocouple provided in the combustion chamber, the combustion unit A cooking pan temperature detecting means, which also serves as an open / close switch and a cooking pan detecting means, is configured to open and close a circuit of an on-off valve and a thermocouple by the open / close switch, and a cooking pan temperature detecting means also serving as a cooking pot detecting means; This is a catalytic combustor in which an open / close switch is linked. According to the present invention, since the cooking pan temperature detecting means also serving as the cooking pan detecting means is provided, it is possible to obtain a catalytic combustor having improved operability, economy, and safety at a low cost.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION
It has a combustion part, an operation part and a cooking pot, and the combustion part has a combustion catalyst,
A thermocouple having a combustion chamber, a gas ejection nozzle, an air suction ejector, an air suction port, and an ignition plug; an operation unit having an on-off valve for opening and closing fuel flow and an ignition device; and a thermocouple provided with the on-off valve in the combustion chamber It is intended to be a catalytic combustor that keeps the open state with the electromotive force of, detects the temperature rise due to ignition as the electromotive force of the thermocouple, holds the on-off valve open, and at the time of non-ignition,
The on-off valve closes and shuts off fuel, which improves safety.

According to a second aspect of the present invention, there is provided a combustion unit, an operation unit and a cooking pot, wherein the combustion unit comprises a combustion catalyst, a combustion chamber,
It has a gas ejection nozzle, an air suction ejector, an air suction port, and a spark plug. The operating unit has an on-off valve for opening and closing fuel flow and an ignition device, and the electromotive force of a thermocouple provided with the on-off valve in a combustion chamber. The thermostat is attached to the lower part of the combustion chamber, and the circuit of the on-off valve and the thermocouple is opened and closed by the thermostat. When the temperature becomes abnormal, the thermostat turns on the on-off valve and the thermoelectric device. Since the paired circuits are opened and the on-off valve is closed, fuel is cut off, and safety is further improved.

According to a third aspect of the present invention, there is provided a combustion unit, an operation unit, and a cooking pot, wherein the combustion unit includes a combustion catalyst, a combustion chamber,
It has a gas ejection nozzle, an air suction ejector, an air suction port, and a spark plug. The operating unit has an on-off valve for opening and closing fuel flow and an ignition device, and the electromotive force of a thermocouple provided with the on-off valve in a combustion chamber. In the combustion section, an open / close switch and a cooking pan detecting means are provided, and the open / close switch is configured to open and close the circuit of the open / close valve and the thermocouple, and the cooking pan detecting means and the open / close switch are provided. This is an interlocking catalytic combustor, and the on-off valve does not hold open when there is no cooking pot, so that fuel does not flow and safety is improved.

According to a fourth aspect of the present invention, there is provided a combustion section, an operation section, and a cooking pot, wherein the combustion section includes a combustion catalyst, a combustion chamber,
It has a gas ejection nozzle, an air suction ejector, an air suction port, and a spark plug. The operating unit has an on-off valve for opening and closing fuel flow and an ignition device, and the electromotive force of a thermocouple provided with the on-off valve in a combustion chamber. The combustion unit is provided with an open / close switch and a fall detecting means, and the open / close switch is configured to open and close the circuit of the open / close valve and the thermocouple. When the catalytic combustor falls, the on-off valve cannot be kept open and the fuel is shut off, so that the safety is further improved.

According to a fifth aspect of the present invention, there is provided a combustion unit, an operation unit, and a cooking pot, wherein the combustion unit includes a combustion catalyst, a combustion chamber,
It has a gas ejection nozzle, an air suction ejector, an air suction port, and a spark plug. The operating unit has an on-off valve for opening and closing fuel flow and an ignition device, and the electromotive force of a thermocouple provided with the on-off valve in a combustion chamber. The combustion unit is provided with an open / close switch and a cooking pot temperature detecting means, and the open / close switch is configured to open and close the circuit of the open / close valve and the thermocouple. It is a catalytic combustor with an interlocking switch, so that the fuel can be shut off by detecting the temperature of the cooking pot, so there is no need to pay attention during cooking, and the fuel is automatically detected by detecting the end of cooking. As a result, operability and economy are improved without wasteful combustion.

According to a sixth aspect of the present invention, there is provided a combustion unit, an operation unit, and a cooking pot, wherein the combustion unit includes a combustion catalyst, a combustion chamber,
It has a gas ejection nozzle, an air suction ejector, an air suction port, and a spark plug. The operating unit has an on-off valve for opening and closing fuel flow and an ignition device, and the electromotive force of a thermocouple provided with the on-off valve in a combustion chamber. In order to maintain the open state, the combustion unit is provided with a cooking pan temperature detecting means that also serves as an open / close switch and a cooking pan detection means, and configured to open and close the circuit of the open / close valve and the thermocouple by the open / close switch, This is a catalytic combustor in which the cooking pot temperature detection means also serves as a cooking pan detection means and the open / close switch are linked, and the cooking pot temperature detection means also serves as the cooking pan detection means. Safety is also improved at low cost.

[0017]

Next, specific embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment 1) Hereinafter, Embodiment 1 of the present invention will be described.
This will be described with reference to FIG. In FIG. 1, reference numeral 10 denotes a combustion unit, which is a combustion catalyst 11, a combustion chamber 12, and a gas ejection nozzle 1.
3. It comprises an air suction ejector 14, a spark plug 15, and an air suction port 16. 17 is a cooking pot. Reference numeral 18 denotes an operation unit which includes an on-off valve 19, a fuel tank 20, and an ignition device 21 using a piezoelectric element. Throat 22
It is formed in a shape that makes it easy to suck in air using the kinetic energy of the gas ejected from the gas ejection nozzle 13. 2
Reference numeral 3 denotes a heat transfer plate that covers the upper portion of the combustion catalyst 11, and an aluminum plate having excellent heat conduction characteristics is used. The cooking pot 17 is placed on the heat transfer plate 23. 24 is a mixing chamber,
It functions to completely mix the gas ejected from the gas ejection nozzle 13 and the air sucked by the air suction ejector 14. Reference numeral 25 denotes an introduction pipe for guiding the mixed gas to the rectification chamber 26. The internal pressure of the rectification chamber 26 becomes uniform, and the mixed gas is uniformly supplied to the combustion catalyst 11. Reference numeral 27 denotes a flame extinguishing net for preventing the flame generated in the combustion chamber 12 from going out of the combustion chamber 12. 28 is a knob for operating the on-off valve 19;
It is connected to the operating piece 29 of the ignition device 21. Reference numeral 30 denotes an outer frame that covers the combustion unit 10. 31 is a thermocouple and the electromotive force is
It is transmitted to the on-off valve 19 by the lead wire 32. Knob 2
When the on / off valve 19 is opened by pushing 8, gas is ejected from the gas ejection nozzle 13. The ejected gas flows through the air suction ejector 14 through the throat 22, and the air is sucked into the mixing chamber 2.
4. Mix thoroughly. The mixed gas enters the rectification chamber 26 through the introduction pipe 25 and is uniformly supplied to the combustion catalyst 11.
At the same time as the knob 28 is pressed, the ignition device 21 is also pressed and a spark is generated from the ignition plug 15, and a flame is formed in the combustion chamber 12 below the combustion catalyst 11. At this time, the thermocouple 31 is heated to generate an electromotive force, the magnet in the on-off valve 19 is operated, the on-off valve 19 is kept open, and the combustion is continued. When the temperature of the combustion catalyst 11 rises to 200 ° C. or higher, which is the temperature at which catalytic combustion is possible, catalytic combustion starts from the upstream side, and the flame goes out. However, the thermocouple 31 is continuously heated by the combustion heat of the catalytic combustion, and the on-off valve 19 is kept open. Since the combustion is performed from the upstream side, the temperature of the upper part of the combustion catalyst 11 is high, and the cooking pot 17 placed via the adjacent heat transfer plate 23 is efficiently heated. If the temperature of the thermocouple 31 does not rise due to misfiring or fire extinguishing, the on / off valve 19 is closed without operating the magnet, and the fuel is shut off. Thus, the outflow of unburned gas is prevented and safety is improved.

(Embodiment 2) Next, Embodiment 2 of the present invention will be described. 2, 3, and 4, reference numeral 33 denotes a thermostat provided in a lower portion 34 of the combustion chamber. The thermostat 33 is connected to the circuit of the on-off valve 19 and the thermocouple 31. Other configurations are the same as those of the catalytic combustor in the first embodiment. When the temperature of the combustion part 10 becomes abnormal during combustion, the thermostat 33 operates, the circuit of the on-off valve 19 and the thermocouple 31 is opened, and the on-off valve 19 is closed.
Since the combustion is stopped, safety can be improved.

Third Embodiment Next, a third embodiment of the present invention will be described. 5 and 6, reference numeral 35 denotes a cooking pan detecting means, which is constituted by a detecting rod 36, a detecting rod support 37, and a detecting rod spring 38. Reference numeral 39 denotes an open / close switch connected to the circuit of the open / close valve 19 and the thermocouple 31. One end of the detection rod 36 is in contact with the operation piece 40 of the open / close switch 39.
Other configurations are the same as those of the catalytic combustor in the first embodiment. As shown in FIG. 6, when the cooking pot 17 disappears, the detection rod 36 is moved upward by the detection rod spring 38, the open / close switch 39 is opened from the closed state, the circuit of the open / close valve 19 and the thermocouple 31 is opened, and the open / close valve is opened. 19 is closed as shown in FIG. 6 to stop the combustion, so that safety can be improved.

(Embodiment 4) Next, Embodiment 4 of the present invention will be described. 7 and 8, reference numeral 41 denotes the combustion unit 10.
This is a fall detecting means provided in the device. Fall detection means 41
Is comprised of a fall detection rod 42 and a fall detection spring 43. Reference numeral 39 denotes an open / close switch connected to the circuit of the open / close valve 19 and the thermocouple 31, and one end of the fall detection rod 42 is in contact with the operation piece 40 of the open / close switch 39. Other configurations are
This is the same as the catalytic combustor in the first embodiment. When the catalytic combustor falls, the fall detection rod 42 is turned over by the fall detection rod spring 43.
, The open / close switch 39 is changed from closed to open, the circuit of the open / close valve 19 and the thermocouple 31 is opened, and the open / close valve 19 is opened.
Is closed and combustion is stopped, so that safety can be improved.

(Embodiment 5) Next, Embodiment 5 of the present invention will be described. 9 and 10, reference numeral 44 denotes the combustion unit 1
0 is a cooking pan temperature detection means. The cooking pot temperature detecting means 44 includes an inverted bimetal 45, a connecting rod 46, and a case 47. Reference numeral 39 denotes an open / close switch connected to the circuit of the open / close valve 19 and the thermocouple 31. One end of the connecting rod 46 is in contact with the operation piece 40 of the open / close switch 39.
Other configurations are the same as those of the catalytic combustor in the first embodiment. When the temperature of the cooking pot 17 reaches the cooking end temperature, the reversing bimetal 45 is reversed, the force of the connecting rod 46 pressing the operating piece 40 is lost, the open / close switch 39 is changed from closed to open, and the circuit of the open / close valve 19 and the thermocouple 31 is closed. Opens, the on-off valve 19 closes and combustion stops, so that it is possible to detect the temperature of the cooking pot and shut off the fuel, so that there is no need to be careful during cooking and the end of cooking is automatically detected. To stop the fuel
Operability and economy are improved without wasteful combustion.

(Embodiment 6) Next, Embodiment 6 of the present invention will be described. In FIGS. 11 and 12, reference numeral 48 denotes a cooking pot temperature detecting means provided in the combustion section 10 and serving also as a cooking pot detecting means. is there. The cooking pot temperature detecting means 48 includes an inverted bimetal 45, a connecting rod 46, a case 47, a case holding table 49,
It comprises a cooking pot detection spring 50. The case holder 49 is provided with a leg 51 and is inserted into a through hole 53 provided in an open / close switch case 52. Reference numeral 39 denotes an open / close switch connected to the circuit of the open / close valve 19 and the thermocouple 31. One end of the connecting rod 46 is an operation piece 40 of the open / close switch 39.
When the cooking pot 17 is present and is at or below the cooking end temperature, the opening / closing switch 39 is closed. Other configurations are the same as those of the catalytic combustor in the first embodiment. When there is no cooking pot 17, the cooking pot temperature detecting means 48 is moved by the cooking pot detecting spring 50,
6 loses the force of pressing the operation piece 40, and the open / close switch 39
Changes from closed to open, the circuit of the on-off valve 19 and the thermocouple 31 opens, the on-off valve 19 closes, and combustion stops. When the cooking pot 17 is present and the temperature of the cooking pot 17 reaches the cooking end temperature, the inverted bimetal 45 is inverted, and the connecting rod 46 is turned off.
Loses the force to push the operation piece 40, the open / close switch 39 is closed to open, the circuit of the open / close valve 19 and the thermocouple 31 opens,
The on-off valve 19 closes and combustion stops. As described above, the operability and the economy are improved at the same time as the safety is reduced.

[0024]

According to the first aspect of the present invention, the on-off valve for opening and closing the flow of fuel by detecting the temperature rise due to ignition as the electromotive force of the thermocouple is opened and closed when no ignition occurs. , And the advantageous effect that safety is improved can be obtained.

According to the second aspect of the invention, when the temperature becomes abnormal, the thermostat opens and closes the circuit of the on-off valve for opening and closing the flow of fuel and the thermocouple, and closes the on-off valve. The advantageous effect that the property is improved is obtained.

According to the third aspect of the present invention, when there is no cooking pot, the on-off valve for opening and closing the fuel flow is not held open, so that the fuel does not flow and the safety is improved. Is obtained.

According to the fourth aspect of the present invention, when the catalytic combustor falls, the on-off valve for opening and closing the flow of fuel cannot be kept open, and the fuel is shut off, thereby improving safety. Effects can be obtained.

According to the fifth aspect of the present invention, since the fuel can be shut off by detecting the temperature of the cooking pot, there is no need to pay attention during cooking, and the fuel is detected by automatically detecting the end of cooking. Since it is stopped, there is an advantageous effect that operability and economic efficiency are improved without wasteful combustion.

According to the sixth aspect of the present invention, since the cooking pot temperature detecting means also serving as the cooking pot detecting means is provided, the operability is improved.
The advantageous effect that the safety is improved at the same time as the economic efficiency is obtained.

[Brief description of the drawings]

FIG. 1 is a sectional view of a catalytic combustor according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a catalytic combustor according to a second embodiment of the present invention.

FIG. 3 is a sectional view of the catalytic combustor.

FIG. 4 is a sectional view of the catalytic combustor.

FIG. 5 is a sectional view of a catalytic combustor according to a third embodiment of the present invention.

FIG. 6 is a sectional view of the catalytic combustor.

FIG. 7 is a sectional view of a catalytic combustor according to a fourth embodiment of the present invention.

FIG. 8 is a sectional view of the catalytic combustor.

FIG. 9 is a sectional view of a catalytic combustor according to a fifth embodiment of the present invention.

FIG. 10 is a sectional view of the catalytic combustor.

FIG. 11 is a sectional view of a main part of a catalytic combustor according to a sixth embodiment of the present invention.

FIG. 12 is a sectional view of a main part of the catalytic combustor.

FIG. 13 is a cross-sectional view of a conventional catalytic combustor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Combustion part 11 Combustion catalyst 12 Combustion chamber 13 Gas ejection nozzle 14 Air suction ejector 15 Ignition plug 16 Air suction port 17 Cooking pot 18 Operation part 19 Opening / closing valve 20 Fuel tank 21 Ignition device 31 Thermocouple 33 Thermostat 34 Lower combustion chamber 35 Cooking pot detecting means 41 Fall detecting means 44 Cooking pot temperature detecting means 48 Cooking pot temperature detecting means also serving as cooking pot detecting means

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F24C 3/02 F24C 3/02 R (72) Inventor Miki Hono 1006 Kadoma, Kazuma, Kazuma, Osaka Matsushita Electric Industrial F term in the company (reference) 3K017 BA01 BB02 BC10 3K065 TA06 TA13 TA19 TB12 TB16 TC00 TE01 TK02 TN01

Claims (6)

[Claims] 1. A combustion section, an operation section, and a cooking pot, wherein the combustion section has a combustion catalyst, a combustion chamber, a gas ejection nozzle, an air suction ejector, an air suction port, and a spark plug. And a igniter, wherein the open / close valve is kept open by the electromotive force of a thermocouple provided in the combustion chamber. 2. A combustion section, an operation section, and a cooking pot, wherein the combustion section has a combustion catalyst, a combustion chamber, a gas ejection nozzle, an air suction ejector, an air suction port, and a spark plug. An open / close valve and an ignition device for opening and closing the fuel cell, the open / close valve is kept open by an electromotive force of a thermocouple provided in a combustion chamber, a thermostat is attached to a lower portion of the combustion chamber, and the thermostat is used to open and close the valve. A catalytic combustor configured to open and close the thermocouple circuit. 3. A combustion section, an operation section, and a cooking pot, wherein the combustion section has a combustion catalyst, a combustion chamber, a gas ejection nozzle, an air suction ejector, an air suction port, and a spark plug. Having an on-off valve for opening and closing and an ignition device, so that the on-off valve is kept open by an electromotive force of a thermocouple provided in a combustion chamber, and an on-off switch and a cooking pot detecting means are provided in the combustion unit, A catalytic combustor configured to open and close a circuit of an on-off valve and a thermocouple by the on-off switch, and interlocking a cooking pot detection unit and an on-off switch. 4. A combustion section, an operation section, and a cooking pot, wherein the combustion section has a combustion catalyst, a combustion chamber, a gas ejection nozzle, an air suction ejector, an air suction port, and a spark plug. An open / close valve and an ignition device for opening and closing the valve, the open / close valve is kept open by an electromotive force of a thermocouple provided in a combustion chamber, and the combustion unit is provided with an open / close switch and a fall detection means, A catalytic combustor with an open / close switch that opens and closes the circuit of the open / close valve and thermocouple, and in which the overturn detection means and the open / close switch are linked. 5. A combustion section, an operation section, and a cooking pot, wherein the combustion section has a combustion catalyst, a combustion chamber, a gas ejection nozzle, an air suction ejector, an air suction port, and a spark plug. An on-off valve for opening and closing the valve and an ignition device, wherein the on-off valve is kept open by an electromotive force of a thermocouple provided in a combustion chamber, and an on-off switch and a cooking pot temperature detecting means are provided in the combustion unit. A catalytic combustor configured to open and close the circuit of the on-off valve and the thermocouple by the on-off switch, and interlocking the cooking-pan temperature detecting means and the on-off switch. 6. A combustion section, an operation section, and a cooking pot, wherein the combustion section has a combustion catalyst, a combustion chamber, a gas ejection nozzle, an air suction ejector, an air suction port, and a spark plug. An on-off valve and an ignition device for opening and closing the valve, and the on-off valve is kept open by an electromotive force of a thermocouple provided in a combustion chamber, and the combustion unit also serves as an on-off switch and a cooking pan detecting means. A cooking pan temperature detecting means is provided, and the open / close switch is configured to open / close a circuit of an on-off valve and a thermocouple,
A catalytic combustor in which a cooking pan temperature detecting means that also serves as a cooking pan detecting means and an open / close switch are linked.