JPH0769046B2 - Catalytic combustion equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a catalytic combustion device using catalytic combustion heat as a heat source.

2. Description of the Related Art In a conventional catalytic combustion apparatus of this type, for example, a cordless hair curler has a structure shown in FIG.

In other words, the curler part that wraps the hair around and makes a habit
A combustion chamber 102 is provided inside 101, and a burner 103 that ejects combustion gas and a catalyst 104 that causes a catalytic exothermic reaction with this gas are provided in the combustion chamber 102, and the tip of the combustion chamber 102 is operated from the outside. An operation button for operating the iron 107 with a reversible temperature indicating label 106 indicating the temperature rising state of the curler portion 101, provided with an igniting device 105 for blowing a spark with a flint.
It had a structure attached to 108.

Problems to be Solved by the Invention In the conventional structure described above, the catalyst 104 is ignited by causing a spark to be emitted from the ignition device 105 and the combustion gas filled in the combustion chamber 102 being instantaneously ignited by the spark. . The ignited gas rapidly burns (explodes), and its energy raises the temperature of the catalyst 104. Therefore, the combustion gas ejected from the burner 103 starts catalytic combustion, and thereafter the catalytic reaction is maintained by the combustion heat. And curler part 10
As 1 is heated, the temperature of the temperature indicating label 106 also rises,
When the temperature reaches a predetermined temperature, the color is changed to inform the user that it can be used. In the above structure, the catalyst 104 is ignited by checking whether the curler portion 101 has been heated and touched by hand, or whether the temperature indicator label 107 has been reached.
There is a problem in that there is a time between the ignition operation and the confirmation of ignition. In addition, after waiting for a while, if the non-ignition is confirmed, the ignition operation has to be repeated again, which is very difficult for the user to use.

The present invention solves the above-mentioned conventional problems, and provides a catalytic combustion device with greatly improved usability.

Means for Solving the Problems And, in order to solve the above-mentioned conventional problems, the present invention provides a tank for storing a liquefied combustion gas, a vaporizer for vaporizing the liquefied combustion gas supplied from the tank, and a vaporizer for the vaporization. A combustion chamber in which the combustion gas vaporized by the device is brought into contact with a catalyst for catalytic combustion, an ignition device for igniting the fuel gas supplied facing the combustion chamber, and a tip portion of the combustion chamber connected to the combustion chamber. Is provided so as to be able to project and retract with an exhaust portion for discharging the combustion gas to the outside and a gap opened to the outside between the exhaust portion, and is urged inwardly of the combustion chamber by a spring. And a piston protruding outward from the exhaust portion against the biasing force of the spring at the time of ignition.

Action The catalytic combustion device of the present invention, by the above configuration, when the gas filled in the combustion chamber by the ignition device is ignited, the gas is rapidly expanded and discharged to the outside from the exhaust portion connected to the combustion chamber, At this time, the piston that is freely retractable in the exhaust unit can temporarily project outward from the exhaust unit against the biasing force of the spring due to the expansion of the gas, and the user can recognize the ignition. It is a thing.

Example Hereinafter, one example of the present invention will be described with reference to the accompanying drawings.

1 to 3, a tank portion 2 for storing a liquefied combustion gas 1 which is a fuel for a cordless hair curler is a tank body 3, a tank lid 4 for closing the rear portion thereof, and a liquefied combustion gas fixed to the tank lid 4. It is composed of a valve 5 capable of injecting 1 from the outside.

In front of the tank body 3, a vaporizer (not shown) that vaporizes the liquefied combustion gas 1 into a vaporized combustion gas 6 (indicated by an arrow) and a nozzle (not shown) that ejects the vaporized combustion gas 6 The nozzle body 7 is closed by a valve device (not shown) for turning on / off the ejection of the vaporized combustion gas 6 from the nozzle.

The opening and closing of the valve device is connected to the switch 8 and the temperature control unit 9. The sensitivity control section 9 is composed of an inner pipe 10 and an outer pipe 11 having different thermal expansion coefficients, one end of which is composed of an adjusting female screw 12 and an adjusting male screw 13, and the inner pipe 10 and the outer pipe 11 are opposed to each other. The position is adjustable, and at the other end, the outer pipe 11 is fixed to the nozzle body 7, and the inner pipe is
Reference numeral 10 is inserted into the tip of the nozzle body 7, and the difference in expansion and contraction due to the difference in thermal expansion coefficient is transmitted to the valve device of the nozzle body 7, and the vaporized combustion gas 6 can be controlled to adjust the temperature. An air inlet 14 is provided near the nozzle body 7 of the inner pipe 10 so that the jet flow of the vaporized combustion gas 6 takes in the air by an injection action to produce a mixed gas 15 having an arbitrary concentration. There is. Further, the temperature control section 9 also serves as a burner section 16 for ejecting the mixed gas 15, and the inner pipe 10 has a hole 17 through which the mixed gas 15 passes.
A small hole that forms a burner 18 in any area on the outer pipe 11.
19 are provided all around.

Hair winding part 20 for winding the hair fixed with screws around the tank part 2 to make it stubborn, is a substantially cylindrical shape, made of heat resistant resin, and the inner wall is tapered so as to spread from the tip toward the mounting side of the tank part 2. A cylindrical heat equalizing pipe 22 made of a metal having a high thermal conductivity, such as aluminum, which forms the combustion chamber 21 including the temperature control unit 9 is inserted inside.

An exhaust portion 23 connected to the combustion chamber 21 is provided at the tip of the hair winding portion 20, and a piston biased inwardly of the combustion chamber 21 by a spring 24 is provided in the exhaust portion 23. It houses 25. Then, between the piston 25 and the exhaust portion 23, an open gap that communicates the combustion chamber 21 and the outside is formed, the piston 25 is provided so as to be retractable with respect to the exhaust portion 23, and The tank portion 2 side is closed by an electrode mount 26.

In a portion corresponding to the burner 18, a combustion catalyst 27 in which platinum is supported on a non-woven support made of ceramic fiber 27
Is provided in a cylindrical shape so as to be inscribed in the heat equalizing pipe 22, and is held by a coil portion 29 having a small diameter of the coil spring 28 and a large-diameter end turn portion 30 which is in contact with the inner wall of the heat equalizing pipe 22. Together with this coil spring 28, the scissors portion of the heat equalizing pipe 22
It is held by 31 and its position is regulated. Reference numeral 32 denotes a trowel for pinching the hair, which is rotated around the shaft 34 by operating the operation button 33, and is constantly urged by the trowel spring 35 toward the hair winding portion 20 side. 36 is a comb that can be attached to and detached from the hair wrapping part 20, and 37 protects the comb 36 when carrying and storing it, and it is hot 36
It is a cap for blocking the heat from.

The ignition of the combustion catalyst 27 is linked by the operation of the switch 8, the high-voltage generating piezoelectric device 38 operates, the generated high voltage is guided to the electrode 39, and the spark is blown to the outer pipe 11,
First, the mixed gas 15 which is ejected from the burner 18 and fills the combustion chamber 21 is ignited. The ignited mixed gas 15 rapidly burns (explodes), and the expanded mixed gas 15 pushes up the piston 25 and is discharged to the outside, and at the same time, raises the temperature of the combustion catalyst 27 and replenishes the mixed gas 15 and for combustion. The catalytic combustion reaction of the catalyst 27 is started.

In the above structure, when the cap 37 is not removed and the switch 8 is first operated, the liquefied combustion gas 1 stored in the tank portion 2
Is vaporized by the vaporizer in the nozzle body 7 and vaporized combustion gas 6
Becomes, and passes through the valve device in the open state, and the inner pipe from the nozzle
Eject to 10. The vaporized combustion gas 6 ejected is the air intake
Air is entangled from 14 by an injection action to become a mixed gas 15 having an arbitrary gas concentration, passes through a hole 17 of the inner pipe 10, is jetted from a small hole 19 of the outer pipe 11 toward the combustion catalyst 27, and enters the combustion chamber 21. It is filled and discharged from the exhaust unit 23.

Then, by further operating the switch 8, the high-voltage generating piezoelectric device 38 is operated, the generated high voltage is guided to the electrode 39, and a spark is emitted toward the outer pipe 11. Due to this spark, the mixed gas 15 filled in the combustion chamber 21 is ignited, rapidly burned and expanded. The expanded mixed gas 15 is vigorously directed to the exhaust portion 23, and the piston 25 is projected from the exhaust portion 23 connected to the combustion chamber 21 to the outside against the impulsive force of the spring 24 to ignite the user. Let us know what you have done. Then, at the next moment, the piston 25 is biased inwardly of the combustion chamber 21 by the spring 24 and is housed in the exhaust portion 23. Next, the combustion heat of the ignited mixed gas 15 raises the temperature of the combustion catalyst 27 to start a catalytic combustion reaction with the replenished mixed gas 15 to transfer the combustion heat to the hair winding part.

Effects of the Invention As described above, according to the present invention, a tank for storing liquefied fuel gas, a vaporizer for vaporizing the liquefied combustion gas supplied from the tank, and a combustion gas vaporized by the vaporizer are brought into contact with a catalyst. A combustion chamber that performs catalytic combustion, an ignition device that ignites the combustion gas supplied to the combustion chamber, a cylindrical hair wrapping portion that houses the combustion chamber, and a tip portion that is connected to the combustion chamber and that is continuous with the combustion chamber. The exhaust portion of the combustion gas provided in the, and the exhaust portion is provided so as to be retractable with a gap open to the outside, and is biased inwardly of the combustion chamber by a spring, By providing a piston that protrudes outward from the exhaust portion against the biasing force of the spring during ignition, it is possible to cause the piston to protrude outward from a predetermined position when the gas starts combustion during ignition. , The user waits for the temperature of the heating section to rise Ignition can be easily confirmed without any trouble.

[Brief description of drawings]

FIG. 1 is a central sectional view of the catalytic combustion apparatus of the present invention, FIG. 2 is an enlarged sectional view of the main part thereof, FIG. 3 is an overall external view of the same, and FIG. 4 is a central sectional view of a conventional catalytic combustion apparatus. is there. 21 ... Combustion chamber, 25 ... Piston, 27 ... Combustion catalyst.

Claims (1)

[Claims] 1. A tank for storing liquefied fuel gas, a vaporizer for vaporizing the liquefied combustion gas supplied from the tank, and a combustion chamber for catalytically burning the fuel gas vaporized by the vaporizer with a catalyst. An ignition device for igniting the fuel gas supplied to the combustion chamber, an exhaust portion for the combustion gas provided at the tip of the combustion chamber, which is connected to the combustion chamber to the outside, and an exhaust portion. It is provided so as to be retractable through a gap open to the outside, and is urged inwardly of the combustion chamber by a spring, and at the time of ignition, it is outwardly of the exhaust portion against the urging force of the spring. Catalytic combustion equipment equipped with a piston protruding inward.