JPH01167528A - Catalytic burner - Google Patents

Abstract

PURPOSE:To enable ignition to be quickly ascertained, by a method wherein a mixed gas within a combustion chamber is sparked and exploded to heat catalysts with thermal energy produced by the explosion and, at the same time, exhaust gas is directed at a thermal display part provided on the portion opposite to an exhaust port so as to discolor the thermal display part. CONSTITUTION:In a curler main body is incorporated a liquefied gas tank 11 from which gas is injected into a supply pipe 12 with a combustion chamber 14 via a valve. In this instance, air is simultaneously fed into the supply pipe 12 through the valve to be mixed with the gas. Then, a mixed gas is fed through holes 13 perforated on the supply pipe 12 into the combustion chamber 14 and is ignited by a discharge electrode 16 to be exploded, so that catalysts 15 are heated by thermal energy produced by the explosion. This exploded gas is exhausted through an exhaust hole 17 in an A part. However, a thermal display at 18 provided in opposition to the exhaust hole 17 is rapidly discolored by the exhaust gas. Accordingly, whether or not ignition is carried out is ascertained instantaneously.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to catalytic combustion devices, particularly to ignition confirmation.

BACKGROUND OF THE INVENTION Conventionally, this type of catalytic combustion apparatus has had a configuration as shown in FIG. That is, FIG. 3 is a cross-sectional view of a hair curler using catalytic combustion, where 1 is a catalyst, 2 is a temperature regulator,
3 is a curler body forming a combustion chamber; 4 is a brush attached in contact with the outer periphery of the curler body 3; and 6 is an exhaust hole through which burned gas is discharged. Reference numeral 6 denotes a heat-sensitive display section, which changes color when a certain temperature is reached, such as a temperature-indicating tape. This heat-sensitive display part 6 is attached in contact with the outer surface of the brush 4, and when the inside of the combustion chamber is heated by catalytic combustion, it receives heat through the curler body 3, which is the wall of the combustion chamber, and maintains a constant temperature. It changes color when it reaches . In order to ignite the catalyst 1, the battery 7 is used to heat the heater 8, which heats the catalyst 1 and starts the catalytic reaction.The catalytic reaction progresses gradually until the entire body starts working. takes time.

Problems to be Solved by the Invention In such a conventional configuration, the heat-sensitive display section receives heat through the combustion chamber wall, and the combustion chamber wall has a heat capacity. , it took a long time for the heat-sensitive display section to change color. Therefore, after the ignition operation was performed using the switch, it was not immediately clear whether the ignition was actually ignited and combustion started, and the temperature of a portion of the curler was rising, making it inconvenient to use.

Usually, heat-resistant metals such as aluminum are used for combustion chamber wall materials, but metals have a large heat capacity and take time to heat up, and even if plastic materials are used, they have poor thermal conductivity, so heat-sensitive display The actual situation was that the temperature of the heat-sensitive display part was not very sensitive, and it took a long time to raise the temperature of the heat-sensitive display part.

The present invention is intended to solve these problems, and aims to bring the heat-sensitive display section to a constant temperature instantly after catalytic combustion starts.

Means for Solving the Problem In order to solve this problem, the present invention uses a spark to ignite and explode the air-fuel mixture accumulated in the combustion chamber as an ignition means.
The explosive gas is applied directly to a heat-sensitive display located opposite the exhaust hole, causing it to change color.

For production The effect of this configuration is as follows.

That is, in order to start the catalytic reaction, it is necessary to heat the catalyst to a predetermined temperature. To achieve this, a spark is thrown into the mixture (air and gas) that has accumulated in the combustion chamber, causing it to explode, and the thermal energy generated at that time heats the catalyst. Speech out. This explosive gas is concentratedly applied to the heat-sensitive display section, and the heat of the gas changes the color of the heat-sensitive display section to confirm ignition.

Example Examples thereof will be described below with reference to the accompanying drawings.

In FIGS. 1 and 2, 11 is a tank filled with liquefied gas, and the gas is led to a gas supply pipe 12 through a valve. When gas enters the supply pipe 12 from the valve, air is simultaneously sucked in from the outside to create a mixture.

The mixture is supplied to the combustion chamber 14 through a hole 13 made in the supply pipe 12.
is supplied to 16 is a catalyst, 16 is a discharge electrode, 17 is an exhaust hole, and 18 is a heat-sensitive display section provided opposite to this exhaust hole 17, such as a temperature-indicating tape, which changes color when the temperature exceeds a certain level, and returns to its original color when cooled. Use suitable materials.

Next, the operation of this embodiment will be explained. Liquefied gas (for example, butane gas) in the tank 11 flows through the pulp into the supply pipe 12 by operating a switch, and at this time, external air is sucked in to form a mixture, which is then supplied to the combustion chamber 14. The air-fuel mixture accumulated in the combustion chamber 14 is ignited by causing a spark to fly from the discharge electrode 16 by operating a switch. A mixture is a mixture of air and gas, so it explodes instantly. This heat heats the catalyst 16 to a temperature at which it can start a catalytic reaction, and at the same time this combustion gas is exhausted through the exhaust hole 17. A heat-sensitive display section 18 is provided at a portion facing the exhaust hole. This heat-sensitive display section 18 is attached to a support stand 19, and has a hole 2o in the center. The combustion gas has a part that directly heats the heat-sensitive display part 18 through the hole 2o, and a part that heats the support base 19 and indirectly heats the heat-sensitive display part 18. The energy of the exploding gas at the moment of ignition heats a part of the heat-sensitive display part 18 through the hole 20, but since this part is held alone in the air, its specific heat is small and the explosive gas is small. You can instantly change colors using just energy. This results in
After operating the switch, you can instantly tell whether the ignition has started. Subsequently, the combustion gas from the catalytic combustion comes out from the exhaust hole 17 and warms the entire support base 19, so the entire heat-sensitive display section 18 gradually changes color, and when the entire area changes color, it is displayed that the temperature has risen to the appropriate temperature. You can also use

Effects of the Invention As described above, the present invention employs an explosive ignition method and provides a heat-sensitive display section at a position opposite to the exhaust hole. Instant confirmation of ignition is now possible.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a catalytic combustion device showing an embodiment of the present invention;
FIG. 2 is an enlarged sectional view of section A in FIG. 1, and FIG. 3 is a sectional view of a conventional catalytic combustion type hair curler. 14... Combustion chamber, 16... Catalyst, 16
...Igniter, 17...Exhaust hole, 18.
...Thermal display section.

Claims (1)

[Claims] It uses liquefied petroleum gas as fuel and has a combustion chamber containing a combustion catalyst for oxidizing this, and an igniter for igniting and exploding the air-fuel mixture accumulated in the combustion chamber as a means for starting the catalytic reaction. A catalytic combustion device with a heat-sensitive display section located opposite the combustion gas exhaust hole.