JPH02233906A - Catalytic combustion device - Google Patents

Catalytic combustion device

Info

Publication number
JPH02233906A
JPH02233906A JP1054797A JP5479789A JPH02233906A JP H02233906 A JPH02233906 A JP H02233906A JP 1054797 A JP1054797 A JP 1054797A JP 5479789 A JP5479789 A JP 5479789A JP H02233906 A JPH02233906 A JP H02233906A
Authority
JP
Japan
Prior art keywords
gas
movable iron
iron piece
temp
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.)
Granted
Application number
JP1054797A
Other languages
Japanese (ja)
Other versions
JPH0794888B2 (en
Inventor
Haruo Ida
治夫 井田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP5479789A priority Critical patent/JPH0794888B2/en
Publication of JPH02233906A publication Critical patent/JPH02233906A/en
Publication of JPH0794888B2 publication Critical patent/JPH0794888B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Control Of Combustion (AREA)
  • Gas Burners (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

PURPOSE:To eliminate the gas leakage from the title device by a method wherein the combustion amount of a catalytic combustion device is electrically controlled by an electromagnetic valve mechanism and a valve body is installed between a gas ejecting nozzle at the downstream side of a movable iron piece and the piece and also to carry out exact temp. control of the device by using an electromagnetic valve which can be driven by a battery. CONSTITUTION:Liquefied gas 2 in a fuel tank 1 is gasified when it passes through a resisting material 4 for air flow and when a power source switch 22 is ON, an exciting coil 10 is magnetized by an electric current from a battery 21 and attracts a movable iron piece 11 and a valve body 12 is opened. Thereby, the gas flows into the inside of a fuel supply passage 8 from an outlet 6 and is ejected from a nozzle 9. This ejected gas sucks air when it flows into a mixer 16 and the gas and air are mixed and supplied to a catalyst 17. Here, ignition is carried out and when the temp. of heated body 20 heated by the combustion heat of the catalyst 17 reaches a set temp., the contact point of a switch mechanism 19 is turned OFF and an electric current to the coil 10 is cut OFF and the piece 11 is pushed upwards by a spring 14 and the body 12 closes the nozzle 9. Then, when the temp. of a cylindrical body 18 is lower than the set temp., the contact point of the mechanism 19 is closed and the body 12 is opened and combustion is started again.

Description

【発明の詳細な説明】 産業上の利用分野 本発明はコードレス機器などに用いられる触媒燃焼装置
に関するものである. 従来の技術 従来、この種の触媒燃焼装置にあって、その燃焼制御、
すなわち温度制御は触媒バーナーの加熱領域にバイメタ
ルなどの熱応動部材を設け、燃料供給路の制御弁を熱応
動部材に連係させていた.発明が解決しようとする課題 しかしながら、上記のようないわゆるfil的な温度制
御手段では、温度ばらつきがどうしても大きくなり、微
細な制御は不可能であった.また、寸法誤差などによっ
て設定寸法が狂いやすく、その調整に大変な手間を要し
ていた.この問題を解決するために、電磁弁を使ってガ
スの流れを制御することが考えられるが、コードレス機
器として使用するため、電源に電池を使用しなければな
らない.そして使用するガス(主としてイソブタンガス
)は気温により圧力が大きく変動する,特に高温場所に
放置(たとえば夏の自動車の中)では80℃〜100℃
の温度になり、ガスの圧力は20kg/一を越えるよう
な状態になる.このような条件下でもガス漏れがないよ
うに弁体のばね圧を設定すると、ばね力に抗して弁体を
作動させるためには強力な電源が必要となり、電池では
実用に賄いきれない. 本発明はこのような課題を解決するもので、高温時でも
ガス漏れがなく、電池で駆動可能な電磁弁を用いて温度
制御が的確にできる触媒燃焼装置を提供ずることを目的
とするものである.課題を解決するための手段 この課題を解決するために本発明は、触媒へ至る燃料供
給路に電磁弁機横を梢成ずる可動鉄片を収納し、この可
動鉄片のガスの流れの下流側にガス噴出ノズルを設ける
とともにこのガス噴出ノズルと可動鉄片との間に弁体を
設け、前記可動鉄片を介して弁体をガス噴出ノズル側に
付勢するスプリングを設け、前記触媒の加熱9y4域に
配股した感温スイッチと前記電磁弁漁楕の励磁コイルを
電気的に接続したものである. 作用 この構成により、触媒燃焼装置の燃焼量は電磁弁機構に
よって電気的に制御され、これにより的確な温度調整が
できる.また、可動鉄片の下流側においてガス噴出ノズ
ルと可動鉄片との間に弁体を設けることにより、弁体を
閉めるためのばね圧は最小限で良く、環境温度が上昇し
て、ガス圧が上がるとそれに比例して弁体の閉じる力も
大きくなり、ガス漏れの心配はない.このような構成に
することにより、ばね圧を最小に設定できるため、電池
で駆動するような小さな電磁石が使用できるようになる
. 実施例 以下、本発明の一実施例について、図面に基づいて説明
する. 第1図〜第3図において、燃料タンク1には液化ガス2
が収納され、この燃料タンク1の上端内部に灯芯3およ
び通気抵抗材4からなる気化部5が設けられ′ている.
また、前記燃料タンク1の上端面には前記気化部5の出
口6に連通するように電磁弁機構7を備えている.この
電磁弁機構7は下端が前記出口6を覆うよう1に立設さ
れた燃料供給路8の上端に設けたノズルつと、前記燃料
供給路8の外周に捲装された励磁コイル10と、前.+
il i陣料供給路8の内部に設けた磁性材からなる可
動鉄片11と、この可動鉄片11の上端に前記ノズル9
の下端に接するように設けられた弁体12と、この弁体
12をノズル9側に付勢してノズル9の出口13を密閉
すべく可動鉄片11の下端と前記出口6の上端との間に
介在されたスプリング14とにより楕成されている.こ
の電磁弁機構7は前記燃料タンク1の上端に設けられた
カバー15で覆われ、このカバー15の上端には前記ノ
ズル9と対向して混合器16が設けられている.この混
合器16はこの混合器16の出口上方において触媒17
を保持する筒体18の下端に取り付けられている.また
、この筒体18の下端には温度により作動するスイッチ
機楕19が取り付けられている.さらに前記カバー15
の上端には前記簡体18を覆い触媒17の燃焼熱により
加熱される被加熱体20が立設され、たとえばヘア一カ
ーラーとして使用される場合、この被加熱体20がカー
ラ一部となる.なお、前記カバー15には電源となる電
池21が収納されているとともに電源スイッチ22が取
り付けられている. 上記構成において、燃料タンク1内の液化ガス2は通気
抵抗材4を通過する際に気化され、ガス状となり、電源
スイッチ22を入れると電池21の電流により励磁コイ
ル10が磁化し、可動鉄片11を引き付け、弁体12が
開かれる.これにより前記気化されたガスは前記出口6
から燃料供給路8の内部に入って可動鉄片11の周りの
隙間を通ってノズル9より噴出される.この噴出ガスは
混合器16に流入するときのエゼクター作用で燃焼に必
要な空気を吸引し、しかる後ガスと空気は混合されて触
媒17に供給される. ここで、適当な手段で点火を行なえば前記触媒17の外
周面では無炎による燃焼が行なわれることになる.前記
触媒17の燃焼熱により加熱される筒体18、すなわち
被加熱体20の温度が筒体18に取り付けたスイッチt
IlIII19の設定温度になったところでスイッチ機
構19の接点が開放され、先に励磁されていた励磁コイ
ル10への通電が断たれ、可動鉄片11はスプリング1
4により上方に押されて弁体12はノズル9を閉じる.
次に筒体18の温度が設定温度より下がるとスイッチ機
構19の接点が閉じて励磁コイル10へ再び電流が流れ
、弁体12が開いてガスが触媒17に供給され、燃焼が
再開される.このように弁体12の開閉動作にとらなう
触媒17の燃焼制御によってftJ体18および被加熱
体20は所定の温度に保持されるものである. 次に弁体の配設位置とばね力との関係について考えてみ
る.今、前記励磁コイル10を境に上流側、すなわち前
記気化部5の出口5の上端に当接するように弁体を設け
た場合、弁体を付勢しなければならない力はガス圧+α
である.また圧力は周囲温度によって変化し、周囲温度
が100℃近くに上がるとガス圧も上昇する,その際の
ガス圧はイソブタンで20h2/一になる.弁体で閉じ
るガスの出口の孔径をIItlIとすると弁体を閉じる
方向に付勢するに必要な力は200 g十αとなる.こ
の力は常時加わっており、通常の温度で弁体を動作させ
る場合でもこの力を弁体に加えてやらなければならず、
電池を使って弁体の開閉を行なうのは非常に困難である
.また電池を使って弁体の開閉ができても、電池の消耗
が激しく、電池がすぐになってしまう. これに対し本実施例の場合は、前記励磁コイル10の下
流側で前記ノズル9の下端に当接するように弁体12を
設けており、弁体12を付勢する力は小さくて良く、周
囲温度が高くなるとガス圧も高くなって、弁体12に働
く力も自然に大きくなる.また、通常の温度ではガス圧
は2〜3lLt/一でありこの状態で弁体12を開くの
に必要な力は20〜30g+αで良く、電池で充分な力
を発揮することができる. 発明の効果 以上のように本発明によれば、高温時でもガス漏れがな
く、電池で駆動可能な電磁弁を用いて温度制御が的゜確
にできる触媒燃焼装置を提供することができる.
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a catalytic combustion device used in cordless equipment and the like. Conventional technology Conventionally, in this type of catalytic combustion device, combustion control,
In other words, temperature control was achieved by installing a thermally responsive member such as a bimetal in the heating area of the catalytic burner, and linking the control valve of the fuel supply path to the thermally responsive member. Problems to be Solved by the Invention However, with the so-called fil-type temperature control means as described above, temperature variations inevitably become large, making fine control impossible. In addition, the set dimensions were easily deviated due to dimensional errors, and adjustment required a great deal of effort. To solve this problem, it is possible to use a solenoid valve to control the gas flow, but since it is used as a cordless device, a battery must be used as the power source. The pressure of the gas used (mainly isobutane gas) fluctuates greatly depending on the temperature, especially if it is left in a high temperature place (e.g. inside a car in the summer).
The temperature reaches , and the gas pressure exceeds 20 kg/1. If the spring pressure of the valve body is set to prevent gas leakage even under these conditions, a powerful power source will be required to operate the valve body against the spring force, which cannot be practically provided by batteries. The present invention is intended to solve these problems, and aims to provide a catalytic combustion device that does not leak gas even at high temperatures and can accurately control temperature using a battery-operated solenoid valve. be. Means for Solving the Problem In order to solve this problem, the present invention stores a movable iron piece that extends next to the solenoid valve in the fuel supply path leading to the catalyst, and installs a movable iron piece on the downstream side of the gas flow of the movable iron piece. A gas ejection nozzle is provided, a valve body is provided between the gas ejection nozzle and a movable iron piece, and a spring is provided that biases the valve element toward the gas ejection nozzle side via the movable iron piece, and the heating area 9y4 of the catalyst is provided. This is an electrical connection between the temperature-sensitive switch arranged in the crotch and the excitation coil of the solenoid valve. Function: With this configuration, the combustion amount of the catalytic combustion device is electrically controlled by a solenoid valve mechanism, which allows for accurate temperature adjustment. In addition, by providing a valve body between the gas jet nozzle and the movable iron piece on the downstream side of the movable iron piece, the spring pressure required to close the valve body can be minimized, and the environmental temperature rises and the gas pressure increases. The closing force of the valve body increases in proportion to this, so there is no need to worry about gas leakage. This configuration allows the spring pressure to be set to a minimum, allowing the use of small electromagnets such as those powered by batteries. EXAMPLE Hereinafter, an example of the present invention will be described based on the drawings. In Figures 1 to 3, a fuel tank 1 has a liquefied gas 2
A vaporizing section 5 consisting of a lamp wick 3 and an airflow resistance material 4 is provided inside the upper end of the fuel tank 1.
Further, an electromagnetic valve mechanism 7 is provided on the upper end surface of the fuel tank 1 so as to communicate with the outlet 6 of the vaporizing section 5. This electromagnetic valve mechanism 7 includes a nozzle provided at the upper end of a fuel supply passage 8 erected so that its lower end covers the outlet 6, an excitation coil 10 wound around the outer periphery of the fuel supply passage 8, and a front .. +
A movable iron piece 11 made of a magnetic material is provided inside the material supply path 8, and the nozzle 9 is installed at the upper end of this movable iron piece 11.
between the lower end of the movable iron piece 11 and the upper end of the outlet 6 in order to urge the valve element 12 toward the nozzle 9 side and seal the outlet 13 of the nozzle 9. It has an oval shape with a spring 14 interposed between. The electromagnetic valve mechanism 7 is covered with a cover 15 provided at the upper end of the fuel tank 1, and a mixer 16 is provided at the upper end of the cover 15 facing the nozzle 9. This mixer 16 has a catalyst 17 above the outlet of this mixer 16.
It is attached to the lower end of the cylindrical body 18 that holds the. Further, a switch ellipse 19 which is activated by temperature is attached to the lower end of this cylinder 18. Furthermore, the cover 15
A heated body 20 is erected at the upper end of the simplified body 18 and is heated by the combustion heat of the catalyst 17. For example, when used as a hair curler, this heated body 20 becomes a part of the hair curler. Note that the cover 15 houses a battery 21 serving as a power source, and a power switch 22 is attached. In the above configuration, the liquefied gas 2 in the fuel tank 1 is vaporized when passing through the ventilation resistance material 4 and becomes gaseous. When the power switch 22 is turned on, the excitation coil 10 is magnetized by the current from the battery 21, and the movable iron piece 11 is turned on. , and the valve body 12 is opened. As a result, the vaporized gas is transferred to the outlet 6.
The fuel enters the inside of the fuel supply path 8, passes through the gap around the movable iron piece 11, and is ejected from the nozzle 9. When this ejected gas flows into the mixer 16, it sucks the air necessary for combustion by the ejector action, and then the gas and air are mixed and supplied to the catalyst 17. Here, if ignition is performed by an appropriate means, flameless combustion will occur on the outer peripheral surface of the catalyst 17. The temperature of the cylindrical body 18 heated by the combustion heat of the catalyst 17, that is, the heated body 20 is controlled by a switch t attached to the cylindrical body 18.
When the set temperature of the IlIII 19 is reached, the contacts of the switch mechanism 19 are opened, the power to the excitation coil 10 that was previously excited is cut off, and the movable iron piece 11 is moved to the spring 1.
4, the valve body 12 closes the nozzle 9.
Next, when the temperature of the cylinder body 18 falls below the set temperature, the contacts of the switch mechanism 19 close, current flows again to the exciting coil 10, the valve body 12 opens, gas is supplied to the catalyst 17, and combustion is restarted. In this manner, the ftJ body 18 and the heated body 20 are maintained at a predetermined temperature by controlling the combustion of the catalyst 17 in conjunction with the opening and closing operations of the valve body 12. Next, let's consider the relationship between the position of the valve body and the spring force. Now, if a valve body is provided so as to be in contact with the upstream side of the excitation coil 10, that is, the upper end of the outlet 5 of the vaporization section 5, the force required to bias the valve body is gas pressure + α
It is. The pressure also changes depending on the ambient temperature, and when the ambient temperature rises to nearly 100°C, the gas pressure also rises, and the gas pressure at that time is 20h2/1 for isobutane. If the hole diameter of the gas outlet that is closed by the valve body is IItlI, the force required to bias the valve body in the closing direction is 200 g+α. This force is constantly applied to the valve body, and even when operating the valve body at normal temperatures, this force must be applied to the valve body.
It is extremely difficult to open and close the valve body using batteries. Also, even if you can use a battery to open and close the valve body, the battery will run out rapidly and will run out quickly. On the other hand, in the case of this embodiment, the valve body 12 is provided so as to come into contact with the lower end of the nozzle 9 on the downstream side of the excitation coil 10, and the force for urging the valve body 12 may be small, and the surrounding As the temperature increases, the gas pressure also increases, and the force acting on the valve body 12 naturally increases. Further, at normal temperature, the gas pressure is 2 to 3 lLt/1, and the force required to open the valve body 12 in this state is only 20 to 30 g+α, and a battery can exert sufficient force. Effects of the Invention As described above, according to the present invention, it is possible to provide a catalytic combustion device that does not cause gas leakage even at high temperatures and can accurately control temperature using a battery-operated solenoid valve.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の一実施例を示すもので、第1図は触媒燃
焼装置の全体断面図、第2図は同要部拡大断面図、第3
図は電気回路図である。 1・・・燃料タンク、2・・・液化ガス、3・・・灯芯
、4・・・通気抵抗材、5・・・気化部、6・・・出口
、7・・・電磁弁機楕、8・・・燃料供給路、9・・・
ノズル、10・・・励磁コイル、11・・・可動鉄片、
12・・・弁体、13・・・出口、14・・スプリング
、16・・・混合器、17・・・触媒、18・・・筒体
、19・・・スイッチR楕、20・・・被加熱体、21
・・・電池、22・・・電源スイッチ. 代理人   森  本  義  弘 第 図 第 図 lタ /
The drawings show one embodiment of the present invention, and FIG. 1 is an overall sectional view of a catalytic combustion device, FIG. 2 is an enlarged sectional view of the same main part, and FIG.
The figure is an electrical circuit diagram. DESCRIPTION OF SYMBOLS 1... Fuel tank, 2... Liquefied gas, 3... Light wick, 4... Ventilation resistance material, 5... Vaporization part, 6... Outlet, 7... Solenoid valve oval, 8...Fuel supply path, 9...
Nozzle, 10... Excitation coil, 11... Movable iron piece,
12... Valve body, 13... Outlet, 14... Spring, 16... Mixer, 17... Catalyst, 18... Cylindrical body, 19... Switch R oval, 20... Heated object, 21
...Battery, 22...Power switch. Agent Yoshihiro Morimoto/

Claims (1)

【特許請求の範囲】[Claims] 1、触媒へ至る燃料供給路に電磁弁機構を構成する可動
鉄片を収納し、この可動鉄片のガスの流れの下流側にガ
ス噴出ノズルを設けるとともにこのガス噴出ノズルと可
動鉄片との間に弁体を設け、前記可動鉄片を介して弁体
をガス噴出ノズル側に付勢するスプリングを設け、前記
触媒の加熱領域に配設した感温スイッチと前記電磁弁機
構の励磁コイルを電気的に接続した触媒燃焼装置。
1. A movable iron piece that constitutes a solenoid valve mechanism is housed in the fuel supply path leading to the catalyst, and a gas jet nozzle is provided downstream of the gas flow of this movable iron piece, and a valve is installed between the gas jet nozzle and the movable iron piece. a spring that biases the valve body toward the gas ejection nozzle via the movable iron piece, and electrically connects the temperature-sensitive switch disposed in the heating area of the catalyst and the excitation coil of the electromagnetic valve mechanism. catalytic combustion device.
JP5479789A 1989-03-07 1989-03-07 Catalytic combustion device Expired - Lifetime JPH0794888B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5479789A JPH0794888B2 (en) 1989-03-07 1989-03-07 Catalytic combustion device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5479789A JPH0794888B2 (en) 1989-03-07 1989-03-07 Catalytic combustion device

Publications (2)

Publication Number Publication Date
JPH02233906A true JPH02233906A (en) 1990-09-17
JPH0794888B2 JPH0794888B2 (en) 1995-10-11

Family

ID=12980746

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5479789A Expired - Lifetime JPH0794888B2 (en) 1989-03-07 1989-03-07 Catalytic combustion device

Country Status (1)

Country Link
JP (1) JPH0794888B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11499713B2 (en) * 2020-07-22 2022-11-15 Rene Sura Handheld welding torch apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11499713B2 (en) * 2020-07-22 2022-11-15 Rene Sura Handheld welding torch apparatus

Also Published As

Publication number Publication date
JPH0794888B2 (en) 1995-10-11

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