JPH04186019A - Ignition method of pocket heater - Google Patents

Abstract

PURPOSE:To eliminate the need for a filament by applying heat generative paint which produces heat by the supply of electric power to a holding fitment which contains heat generative catalyst so that oxide heat generation reaction may start by the supply of power to said heat generative paint in a pocket heater which is ignited by heat generation catalyst. CONSTITUTION:Heat generative paint 9, which produces heat by the supply of electric power, is applied to a heat generation catalyst clamping claw 8a a holding fitment 8 and heat generative catalyst 7 is fixed. A power supply cord 11 is connected to this heat generative paint 9 by way of silver solder. When the heat generative paint applied to the clamping claw 8a is heated with the power supply cord 11, the heat generation catalyst 7 is heated so that oxide heat generation reaction may start and ignite vaporized gas which arrives.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of igniting a body warmer that does not require a spark such as a lighter or a matchstick, or a filament.

[Conventional technology]

Catalysts such as finely powdered platinum have the property of adsorbing more than 100 times their own volume of oxygen, and the adsorbed oxygen is in an activated form that is extremely reactive, making it an excellent oxidation catalyst. exerts its effect.

Further, vaporized exothermic fuel (for example, petroleum benzine) is not simply oxidized at around 130° C., but in the presence of a platinum catalyst, it combines with oxygen and starts an oxidative exothermic reaction.

Conventionally, the following two methods have been used when igniting a warmer as a condition for starting the oxidative exothermic reaction.

The first method is to ignite the crater of the warmer using a spark such as a lighter, and give the exothermic oxidation catalyst a temperature sufficient to start the oxidative exothermic reaction of the vaporized exothermic fuel, thereby causing an oxidative exothermic reaction. was started.

As a second method, the oxidative exothermic reaction is initiated by applying electricity to a filament attached to the exothermic oxidation catalyst to generate heat, thereby providing a temperature sufficient to initiate the oxidative exothermic reaction.

[Problem to be solved by the invention]

However, each of the above two methods had the following problems.

That is, in the first method, which requires a source of spark such as a lighter,
If you do not have such a spark, you will not be able to ignite the warmer, and flame is inherently dangerous (it may cause a fire, etc.).

Furthermore, in the case of using a filament, which is the second method, there is a risk that the filament itself deteriorates over time and may break when necessary.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a method for igniting a body warmer that does not require a spark such as a flame and does not require a filament that has the problems described above.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a heating method for starting an oxidative exothermic reaction of vaporized exothermic fuel in the presence of an exothermic catalyst, in which at least one of the holding fittings in which the exothermic catalyst is installed is provided. The oxidative exothermic reaction was started by energizing a partially applied exothermic paint that generates heat when energized and heating the exothermic catalyst to an appropriate temperature.

[Effect]

Since the present invention has the above-mentioned configuration, the paint that generates heat when energized is applied to at least a part of the holding fitting in which the catalyst is installed, and the paint is energized to generate heat, the catalyst is heated to an appropriate temperature, and the vaporized heat-generating material is heated. A temperature sufficient to initiate an oxidative exothermic reaction by the exothermic oxidation catalyst can be efficiently applied to the fuel.

〔Example〕

The method of igniting a body warmer according to the present invention will be described below with reference to the drawings showing an embodiment of the body warmer used for carrying out the present invention.

(1) is a warmer according to the present invention, and the tank body (2) is a body warmer according to the present invention.
) and a heat generating catalyst holding part (3).

The tank body (2) consists of a hollow container-shaped heat generating fuel tank (4) and absorbent cotton (5) accommodated in the heat generating fuel tank (4). Replenish the heat-generating fuel from step 6) and impregnate the absorbent cotton (5) with an appropriate amount.

Petroleum benzine or the like is used as the heat generating fuel.

The heat generating catalyst holding part (3) is provided above the tank body part (2) and can be detachably attached to the tank body part (2) via the open tank door (6). It consists of a heat generating catalyst (7) and a holding fitting (8) that holds the heat generating catalyst (7) from the outside.

The heat generating catalyst (7) has gripping claws (
8a). This gripping claw (8a)
A heat-generating paint (9) that generates heat when energized is applied to the surface.

In this embodiment, the heat-generating paint (9) is electrically connected to the energizing cord (11) via silver solder (1O), but the energization can be carried out in any other suitable manner.

The holding fitting (8) and the heat-generating fuel tank (4) are electrically insulated to prevent electricity from being transmitted to the tank body (2) when energized.

As the exothermic catalyst (7), a suitable material such as platinum, palladium, rhodium, etc. is pulverized according to the type and properties of the exothermic fuel, and the catalyst is supported on a carrier by a known method. As the material of the carrier, ceramics, aluminum, glass, stainless steel, etc. can be used.

In this example, as the exothermic catalyst (7), one in which finely powdered platinum was supported on a glass mat by a known method was used.

Next, the state of use of the invention of the ignition method for this hand warmer (1) will be explained.

Gas vaporized from the exothermic fuel impregnated in the absorbent cotton (5) of the tank body (2) reaches the exothermic catalyst holding section (3) from the tank chamber (6).

Next, the gripping claw (8a) is connected to the energizing cord (11).
Electricity is applied to the heat-generating paint (9) applied to the surface to generate heat.

Then, heat is transmitted to the heat generating catalyst (7) from the contact surface with the gripping claw (8a), and the heat is widely transmitted to the surface of the catalyst (7). In other words, unlike filament ignition, localized heating does not occur, and the stability of ignition is superior to filament ignition.

The heat-generating paint (9) is approximately 1,000 yen depending on the charging voltage etc.
Since it is possible to heat up to about .degree. C., the voltage value and the like are set so that the exothermic catalyst (7) is heated to the most suitable temperature for starting the oxidative exothermic reaction of the vaporized gas. Usually, when the exothermic catalyst (7) is heated to about 130° C., the oxidative exothermic reaction starts well.

In this way, the vaporized gas combines with oxygen in the presence of the exothermic catalyst (7) heated to an appropriate temperature and starts an oxidative exothermic reaction.

The method of this invention is applicable not only to the hand warmer (1) but also to other heat generating equipment. For example, in a gas stove that burns propane gas, city gas, etc. through a catalytic reaction, paint that generates heat when electricity is applied can be used as a method for starting (igniting) these heat generating equipment.

〔Effect of the invention〕

Since this invention is configured as described above, the paint that generates heat when energized is applied to at least a part of the holding fitting in which the catalyst is installed, and the paint is heated to generate heat, and the catalyst is heated to an appropriate temperature and vaporized. Since the exothermic fuel can be given a temperature sufficient to start an oxidative exothermic reaction by the exothermic oxidation catalyst, it is possible to provide a completely new method for igniting a body warmer that does not require a spark or a filament.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing one embodiment of the ignition section of a warmer used for carrying out the present invention, and FIG. 2 is a perspective view showing the whole body warmer.

Claims (1)

[Claims] 1. In a method for igniting a body warmer in which an oxidative exothermic reaction of vaporized exothermic fuel is started in the presence of an exothermic catalyst, electricity is applied to exothermic paint that generates heat when energized and applied to at least a part of a holding fitting in which the exothermic catalyst is installed. A method for igniting a hand warmer, characterized in that the exothermic oxidation reaction is started by heating the exothermic catalyst to an appropriate temperature.