JPS5934928B2 - catalytic combustion device - Google Patents
catalytic combustion deviceInfo
- Publication number
- JPS5934928B2 JPS5934928B2 JP56030396A JP3039681A JPS5934928B2 JP S5934928 B2 JPS5934928 B2 JP S5934928B2 JP 56030396 A JP56030396 A JP 56030396A JP 3039681 A JP3039681 A JP 3039681A JP S5934928 B2 JPS5934928 B2 JP S5934928B2
- Authority
- JP
- Japan
- Prior art keywords
- ignition
- catalyst
- catalyst layer
- catalytic combustion
- nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/12—Radiant burners
- F23D14/18—Radiant burners using catalysis for flameless combustion
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Description
【発明の詳細な説明】
本発明は、触媒の温度を感知して動作する熱応動素子に
より着火時、すなわち触媒が低温時に着火ヒータ部に集
中的に燃料ガスと空気との混合ガスを供給する事によっ
て、着火を確実にするようにした触媒燃焼装置に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention intensively supplies a mixed gas of fuel gas and air to an ignition heater section at the time of ignition, that is, when the catalyst is at low temperature, using a thermally responsive element that operates by sensing the temperature of the catalyst. The present invention relates to a catalytic combustion device that ensures ignition depending on the situation.
メタン、エタン、プロパン、ブタン等の常温で気体であ
るガス燃料、また、ナフサ、ベンジン、アルコール等の
常温で液体である燃料を気化させ、触媒の表面で燃焼さ
せ熱源とする事は従来から知られている。It has long been known that gaseous fuels such as methane, ethane, propane, and butane, which are gaseous at room temperature, and fuels that are liquid at room temperature, such as naphtha, benzine, and alcohol, can be vaporized and burned on the surface of a catalyst to be used as a heat source. It is being
この触媒燃焼では、触媒の温度として、燃料が触媒表面
上で酸化反応しうる温度以上に上昇している事が必要で
あり、着火方法として次のものが従来より用いられてい
た。In this catalytic combustion, it is necessary that the temperature of the catalyst rises above a temperature at which the fuel can undergo an oxidation reaction on the surface of the catalyst, and the following ignition methods have been conventionally used.
■、加熱ヒヒーにより触媒の一部もしくは全部を加熱す
る。(2) Part or all of the catalyst is heated by heating.
■、燃料ガスを予熱して触媒に供給する。(2) Preheat the fuel gas and supply it to the catalyst.
■、燃料ガスに着火し、炎燃焼を行なわせ、その熱で触
媒を加熱し、その後、触媒燃焼に移行させる。(2) The fuel gas is ignited to cause flame combustion, the heat of which heats the catalyst, and then the process shifts to catalytic combustion.
本発明は上記の着火方式のうち、■の方法の改良に関す
るものである。The present invention relates to an improvement of method (2) among the above-mentioned ignition methods.
従来この方法において、通常の触媒燃焼装置では燃料ガ
スと空気の混合ガスを拡散板等を用いて触媒全体に均一
に供給するようにしているため、着火用加熱ヒータと接
触した触媒部への熱料供給が少なく、従って、発熱量も
小さいところから、着火がしにくいという欠点を有して
いた。Conventionally, in this method, in normal catalytic combustion devices, a mixed gas of fuel gas and air is uniformly supplied to the entire catalyst using a diffuser plate, etc., so that the heat to the catalyst part that comes into contact with the ignition heater is Since the fuel supply is small and the calorific value is also small, it has the disadvantage of being difficult to ignite.
コードレス触媒燃焼機器を目的としたものでは、着火用
加熱ヒータの電源に電池を用いる事が多いため、加熱が
不充分であり、着火はさらにしにくくなる。In cordless catalytic combustion equipment, batteries are often used as the power source for the ignition heater, which results in insufficient heating and makes ignition even more difficult.
本発明は上記従来の欠点を解消したものである。The present invention eliminates the above-mentioned conventional drawbacks.
すなわち、本発明は着火時（すなわち、触媒が低温時）
に燃料ガスと空気の混合ガスを着火ヒータに接触した触
媒部に集中して供給して確実な着火を得、着火後は熱応
動素子により、触媒に均一に燃料ガスを供給するように
したものである。That is, the present invention is effective at the time of ignition (i.e., when the catalyst is at a low temperature).
A mixture of fuel gas and air is concentratedly supplied to the catalyst part in contact with the ignition heater to ensure reliable ignition, and after ignition, the fuel gas is uniformly supplied to the catalyst using a thermal response element. It is.
以下その実施例を図面をもとに説明する。Examples thereof will be described below based on the drawings.
図において、１はアルミニウムなど熱良導材からなる燃
焼筒であり、その内部に触媒層２が設けである。In the figure, 1 is a combustion tube made of a heat-conducting material such as aluminum, and a catalyst layer 2 is provided inside the combustion tube.
着火ヒータ３は触媒層２と密着して設置されており、そ
の一方の端子４は着火スイッチ５の端子板６に接続され
、着火スイッチ５の操作により、電池７の（＋）端子板
８と接続される。The ignition heater 3 is installed in close contact with the catalyst layer 2, and one of its terminals 4 is connected to the terminal plate 6 of the ignition switch 5, and when the ignition switch 5 is operated, it is connected to the (+) terminal plate 8 of the battery 7. Connected.
また、着火ヒータ３の片方の端子９は電池γの（ハ）端
子板１０に直続されている。Further, one terminal 9 of the ignition heater 3 is directly connected to the (c) terminal plate 10 of the battery γ.
このようにして、着火ヒータ３に電流が流れ加熱される
ように接続されている。In this way, the ignition heater 3 is connected so that current flows therethrough and heats it.
燃料ガスと空気の混合ガスは導管１１を経てノズル１２
より噴射される。The mixed gas of fuel gas and air passes through a conduit 11 to a nozzle 12.
More sprayed.
また燃焼筒１に中程を固定し、その片方を触媒層２に接
触させたバイメタル形状記憶合金等の熱応動素子１３は
その彎曲によりノズル１２を着火時（触媒が低温時）に
は触媒層２に近づけ、安定燃焼時（触媒が高温時）には
触媒層２から遠ざけると同時に、ノズル１２と連動する
着火スイッチ５が着火ヒータ３と電池７の接続を断つよ
うになっている。In addition, a thermally responsive element 13 made of a bimetal shape memory alloy or the like whose middle part is fixed to the combustion tube 1 and one side is in contact with the catalyst layer 2 is curved so that when the nozzle 12 is ignited (when the catalyst is at low temperature), the catalyst layer 2 and away from the catalyst layer 2 during stable combustion (when the catalyst is at high temperature), and at the same time, the ignition switch 5 interlocked with the nozzle 12 disconnects the ignition heater 3 from the battery 7.
１４は触媒層２が高温の場合以外はノズル１２を近づけ
て置くようにするバネ、１５は操作部のケースである。14 is a spring that keeps the nozzle 12 close to each other except when the catalyst layer 2 is at a high temperature; 15 is a case of the operating section.
上記の構成において、着火スイッチ５を着火位置まで操
作すると（第１図の状態）、着火ヒータ３に電流が流れ
、着火ヒータ３に密着している触媒部が加熱される。In the above configuration, when the ignition switch 5 is operated to the ignition position (the state shown in FIG. 1), a current flows through the ignition heater 3 and the catalyst portion in close contact with the ignition heater 3 is heated.
この時、触媒層２は低温のため、混合ガスを噴射するノ
ズル１２は触媒層２に近づいている状態にあり、混合ガ
スは着火ヒータ３と接触した触媒部に集中的に供給され
る。At this time, since the catalyst layer 2 is at a low temperature, the nozzle 12 that injects the mixed gas is close to the catalyst layer 2, and the mixed gas is intensively supplied to the catalyst portion that has come into contact with the ignition heater 3.
よって、触媒の単位体積当りの発熱量が大きくなり、着
火ヒータ３と接触した触媒部の温度上昇がすみやかとな
るため、着火が容易かつ確実となる。Therefore, the amount of heat generated per unit volume of the catalyst becomes large, and the temperature of the catalyst portion in contact with the ignition heater 3 increases quickly, making ignition easy and reliable.
着火が完了し触媒層２の温度が上昇すると、同触媒層２
と接触した熱応動素子１３はＡ方向に変形して第２図の
状態になり、ノズル１２を触媒層２から遠ざけると共に
、着火ヒータ３と電池７の接続を断つ。When ignition is completed and the temperature of the catalyst layer 2 rises, the catalyst layer 2
The thermally responsive element 13 that has come into contact with the ignition heater 3 is deformed in the direction A and becomes the state shown in FIG.
このようにして、混合ガスは触媒層２に均一に供給され
、触媒全体で燃焼する、したがって、触媒が部分的に異
常温度上昇し、触媒の寿命を損うようなことも、着火ヒ
ータを切り忘れることもない。In this way, the mixed gas is uniformly supplied to the catalyst layer 2 and is combusted over the entire catalyst.Therefore, the ignition heater can be turned off to prevent abnormal temperature rises in some parts of the catalyst, which may impair the life of the catalyst. I'll never forget it.
なお、熱応動素子１３は着火ヒータ３の熱を直接感知し
ない位置に設置する事が必要である。Note that it is necessary to install the thermally responsive element 13 in a position where it does not directly sense the heat of the ignition heater 3.
第３図に、ある条件におけるノズル１２と触媒層２の距
離と着火時間の関係を示す。FIG. 3 shows the relationship between the distance between the nozzle 12 and the catalyst layer 2 and the ignition time under certain conditions.
例えば、４以内に着火時間を設定したい時は、着火時（
第１図の状態）の状態で距離を７ｍｒｎ以内にする必要
がある。For example, if you want to set the ignition time within 4, set the ignition time (
It is necessary to keep the distance within 7 mrn in the state shown in Figure 1).
このように本発明によれば、着火が安定して確実であり
、また着火操作が簡単な触媒燃焼装置を提供することが
できる。As described above, according to the present invention, it is possible to provide a catalytic combustion device in which ignition is stable and reliable, and the ignition operation is simple.
第１図、第２図は本発明の実施例の触媒燃焼装置の部分
断面図であり、第１図は着火時を、第２図は安定燃焼時
を示す。
第３図はノズル−触媒間距離と着火時間の関係を示す説
明図である。
２・・・・・・触媒層、３・・・・・・着火ヒータ、１
２・・・・・・ノズル、１３・・・・・・熱応動素子。1 and 2 are partial sectional views of a catalytic combustion device according to an embodiment of the present invention, with FIG. 1 showing the state during ignition and FIG. 2 showing the state during stable combustion. FIG. 3 is an explanatory diagram showing the relationship between the nozzle-catalyst distance and the ignition time. 2... Catalyst layer, 3... Ignition heater, 1
2... Nozzle, 13... Thermal response element.
Claims (1)
とを連動させ、触媒層が低温の時には着火ヒータと接触
した触媒層の一部にノズルを近づけ、触媒が高温の時に
は触媒層から離反させたことを特徴とする触媒燃焼装置
。1 A nozzle is linked with a thermally responsive element that changes depending on the temperature of the catalyst layer, and when the catalyst layer is low temperature, the nozzle is brought close to the part of the catalyst layer that was in contact with the ignition heater, and when the catalyst is high temperature, it is moved away from the catalyst layer. A catalytic combustion device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56030396A JPS5934928B2 (en) | 1981-03-02 | 1981-03-02 | catalytic combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56030396A JPS5934928B2 (en) | 1981-03-02 | 1981-03-02 | catalytic combustion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57144822A JPS57144822A (en) | 1982-09-07 |
| JPS5934928B2 true JPS5934928B2 (en) | 1984-08-25 |
Family
ID=12302759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56030396A Expired JPS5934928B2 (en) | 1981-03-02 | 1981-03-02 | catalytic combustion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5934928B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60101419A (en) * | 1983-11-09 | 1985-06-05 | Matsushita Electric Ind Co Ltd | Cigarette lighter |
-
1981
- 1981-03-02 JP JP56030396A patent/JPS5934928B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57144822A (en) | 1982-09-07 |
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