JPS60129555A - Gas injection nozzle for metal burner - Google Patents
Gas injection nozzle for metal burnerInfo
- Publication number
- JPS60129555A JPS60129555A JP58236070A JP23607083A JPS60129555A JP S60129555 A JPS60129555 A JP S60129555A JP 58236070 A JP58236070 A JP 58236070A JP 23607083 A JP23607083 A JP 23607083A JP S60129555 A JPS60129555 A JP S60129555A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- cylinder
- metal
- alloy
- reaction
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D99/00—Subject matter not provided for in other groups of this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
Description
【発明の詳細な説明】
〔本発明の技術分野〕
本発明は、主として水中航走体の推進器などに用いられ
、Ｌｉ ／ ８Ｆ６ を燃料／酸化剤とする金属燃焼器
用ガス噴射ノズルに関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a gas injection nozzle for a metal combustor that is mainly used in a propulsion device for an underwater vehicle and uses Li/8F6 as a fuel/oxidant.
〔従来の金属燃焼器用ガス噴射ノズルの欠点〕一般の噴
射ノズルは、金属燃焼器用ガス噴射ノズルにおいて生ず
るようなノズル構成材を瞬時に溶損するような危険がな
い。これに対して、金属燃焼器用ガス噴射ノズルは、正
常動作時はノズル先端をモリブデン合金のような融点の
高い材料にしておけば問題ないが、異常時、例えば溶融
金属がノズルへ逆流する状況は、弁シート部が不良で、
かつガスライン途中からガスが逃気した時に生ずる。上
述の場合はノズルばかりでなく燃焼器も溶損する危険が
ある。[Disadvantages of conventional gas injection nozzles for metal combustors] General injection nozzles do not have the risk of instantaneous melting of the nozzle components, which occurs in gas injection nozzles for metal combustors. On the other hand, with gas injection nozzles for metal combustors, during normal operation there is no problem if the nozzle tip is made of a material with a high melting point such as a molybdenum alloy, but in abnormal situations, such as when molten metal flows back into the nozzle, there is no problem. , the valve seat is defective.
It also occurs when gas escapes from the middle of the gas line. In the above case, there is a risk that not only the nozzle but also the combustor will be damaged.
本発明は、上記危険を防止する金属燃焼器用ガス噴射ノ
ズルを提供することを目的とする。An object of the present invention is to provide a gas injection nozzle for a metal combustor that prevents the above-mentioned dangers.
すなわち、本発明の目的は、溶融金属が逆流してノズル
内で酸化剤ガスと反応する場合、ノズル後部を溶融させ
ることによって冷却させて該反応を止め、かつ、この溶
融した金属で逆流通路を詰まらせるようにした金属燃焼
器用ガス噴射ノズルを提供するにある。That is, an object of the present invention is to stop the reaction by melting the rear part of the nozzle when the molten metal flows backward and reacts with the oxidizing gas in the nozzle, and to use the molten metal to fill the backflow path. To provide a gas injection nozzle for a metal combustor which is made to be clogged.
そして、本発明は、上記目的を達成する手段として、ノ
ズルを構成する各部分の材質を限定した点にある。すな
わち、本発明は、酸化剤ガス送給用のガス管に連接する
第１の筒と、第１の筒に嵌着して第１の筒内に固定され
る第２の筒と、該第２の筒とのすりあい時忙ガス流路を
ふさぐ頭部が形成されその側部にガス流路を備えた弁棒
と、両側が弁棒と第２の筒とに連接しガス送給停止時に
第２の筒と弁棒とがすりあい状態となるように応力が生
じるばねと、溶融金居側に第１の筒と連接し内部に第２
の筒、弁棒及びばね材を内包するノズルチップとを備え
た金属燃焼器用ガス噴射ノズルにおいて、弁棒、第２０
筒及びノズルチップを耐火金属で形成し、ばね及び第１
の筒を高りμム銅で形成した事を特徴とする金属燃焼器
用ガス噴射ノズルに関するものである。The present invention, as a means for achieving the above object, resides in that the materials of each part constituting the nozzle are limited. That is, the present invention includes a first cylinder connected to a gas pipe for supplying an oxidant gas, a second cylinder fitted into the first cylinder and fixed within the first cylinder, and a second cylinder connected to a gas pipe for supplying oxidizing gas. The valve stem has a head that blocks the busy gas flow path when it rubs against the second cylinder, and has a gas flow path on its side, and both sides are connected to the valve rod and the second cylinder, stopping the gas supply. There is a spring that generates stress so that the second cylinder and the valve stem come into contact with each other, and a second cylinder that is connected to the first cylinder on the molten metal side and inside.
A gas injection nozzle for a metal combustor, comprising a cylinder, a valve stem, and a nozzle tip containing a spring material;
The cylinder and the nozzle tip are made of refractory metal, and the spring and the first
This invention relates to a gas injection nozzle for a metal combustor, characterized in that the cylinder is made of high μm copper.
金属燃焼器用ノズルは、通常の正常燃焼時は約９υ０Ｃ
であるが、前述した異常反応時、すなわち、溶融金属が
ノズル内に逆流し、ここで酸化剤ガスと反応する場合、
局所的に約２０００Ｃ近くＫなる。そこで、本発明では
、ノズルを構成スるノズルスロート部及び弁シート部、
すなわち、弁棒、第２０筒及びノズルチップを耐火金属
で形成するものであり、このノズル細分は溶損する事な
く正常作動するようＫするものである。一方、万一、弁
、シート部不良で溶融金属が逆流してノズル内で酸化剤
ガスと反応しても、ノズル後部、すなわち、ばね及び第
１の筒を高り日ム鋼で形成しておき、この高りμム鋼は
異常反応時に溶融するものである。そして、異常反応時
には、ノズル後部を構成する上記部分が溶融する事で冷
却して反応をとめ、かつ溶融した金属で逆流通路をつま
らせるようにするものである。また、本発明においては
、ノズル後部での反応が燃焼器へ影響しないよ５にノズ
ルスロート部のある部品で、ノズル組立と燃焼器を遮断
する構造とするものである蒜
本発明において、耐火金属としては、異常反応時の高温
に耐える金属材料であ□ればすべ′て使用できるが、好
ましいのは、例えばＭ’ｏ ０．５ Ｔｉ合金、ＴＺＭ
合金、’ｒｚａ合金、ＷＺＭ合金、Ｍ０５０Ｒｅ 合金
などのモリブデン合金である。□この内１例としてＴＺ
’Ｍ合金をあげる。この合金は次の組成を着するもので
ある。The nozzle for metal combustor is approximately 9υ0C during normal combustion.
However, during the abnormal reaction mentioned above, that is, when the molten metal flows back into the nozzle and reacts with the oxidizing gas,
The temperature locally becomes about 2000C. Therefore, in the present invention, a nozzle throat portion and a valve seat portion that constitute a nozzle,
That is, the valve stem, the 20th cylinder, and the nozzle tip are made of refractory metal, and the nozzle subdivision is designed to operate normally without melting or damage. On the other hand, even if the molten metal flows back due to a defect in the valve or seat and reacts with the oxidizing gas in the nozzle, the rear part of the nozzle, that is, the spring and the first tube, should be made of steel. However, this high μm steel melts during an abnormal reaction. When an abnormal reaction occurs, the above-mentioned portion constituting the rear part of the nozzle melts and is cooled to stop the reaction, and the backflow passage is clogged with the molten metal. In addition, in the present invention, in order to prevent the reaction at the rear of the nozzle from affecting the combustor, the part with the nozzle throat section is structured to isolate the nozzle assembly from the combustor. Any metal material can be used as long as it can withstand high temperatures during abnormal reactions, but preferable examples include M'o 0.5 Ti alloy and TZM.
molybdenum alloys such as 'rza alloy, WZM alloy, and M050Re alloy. □One example of this is TZ
'I'll give you the M alloy. This alloy has the following composition.
Ｍｏｍ’ｉｎ ” ’ ９’９２ ’０％０’ｍａｘ、
””’５”０”［ｉ ３ｍ１／ｌ／Ｈｍａｘ ５ ’
ｐ
Ｏｍａｘ ５０’０ ’ ｐ
Ｎ ｍａｘ ２ ０ ＃
Ｔｉ ０．４〜０．６％ □
Ｚｒ ５００〜９００ ｔｄｌ／９
ＡｌｒｎｅＬｘ ５ ｔ
Ｏａｍａｘ ２’０ ’ ＃
Ｆ’ｅｍａｘ １ ０ ０ ｓ
Ｎｉｍａｘ １Ｑ ＃
ｐ ｍａｘ ２ ０
Ｓｍａｘ ２０ ｐｉ／１１
８１ｍａｘ ３ ０ ＃
Ｗ ！ｌ１ａｘ ３ ０ ０ ＃
金属燃焼器に於ける燃料としては、一般にＬｌを使用す
るものであるので、本発明に於ける耐火金属としては、
上記モリブデン合金以外に、耐リチウム性□・耐熱性の
ある純Ｍｏ、Ｎｂ基合金、Ｔａ 基合金なども使用する
ことができるものである。Mom'in ” '9'92 '0%0'max,
""'5"0"[i 3m1/l/Hmax 5'
p Omax 50'0' p N max 2 0 # Ti 0.4-0.6% □ Zr 500-900 tdl/9 AlrneLx 5 t Oamax 2'0'#F'emax 100 s Nimax 1Q # p max 2 0 Smax 20 pi/11 81max 3 0 # W! l1ax 3 0 0 # Since Ll is generally used as a fuel in a metal combustor, the refractory metal in the present invention is
In addition to the above-mentioned molybdenum alloys, pure Mo, Nb-based alloys, Ta-based alloys, etc., which have lithium resistance and heat resistance, can also be used.
すなわち、本発明において使用する耐火金属としては、
一般”忙融点が高く高温強度が大きい金属、例えばＮｂ
、Ｔａ、’・Ｗ、Ｍｏ 等の純金属及びその合金が好ま
じい。中でもＭｏ 純金属及び合金（例えばＭｏ ０，
５ Ｔｉ 、’ ＴＺＭＩ、 Ｔ”ｌＯ、、ＷｚＭ、’
等）は、□溶□融金属及び空気に対する耐食性、高温強
度、加工性に優れ、また、各種耐火金属の巾でも比較的
軽量であるので、本発明で使用する耐火金属として最適
である。That is, the refractory metal used in the present invention is:
General metals with high melting point and high temperature strength, such as Nb
, Ta, '.W, Mo and alloys thereof are preferred. Among them, Mo pure metals and alloys (e.g. Mo 0,
5 Ti,' TZMI, T"lO,, WzM,'
etc.) have excellent corrosion resistance against molten metal and air, high-temperature strength, and workability, and are relatively lightweight even in the width of various refractory metals, so they are optimal as refractory metals used in the present invention.
一方、本発明において、ノズル後部、すなわち、ばね及
び第１の筒を高クロム鋼で１Ａ造するものであるが、こ
の高クロム鋼としては、９００Ｃでの耐熱性を備えた銅
で例えば１８−８ステンレス等があげられる。On the other hand, in the present invention, the rear part of the nozzle, that is, the spring and the first cylinder, are made of 1A high chromium steel, but the high chromium steel is made of copper with heat resistance at 900C, for example, 18-1A. 8 stainless steel etc.
以下第１〜３図に基づいて本発明の詳細な説明する。第
１図は本発明の実施例である金属燃焼器用ガス噴射ノズ
ルの縦断面図であり、第２図は弁棒の斜視図であり、第
３図は弁棒の断面図であって第１図ｘ−ｘ６１矢視図で
ある。第１〜３図に示す金属燃焼器用ガス噴射ノズルは
、内部に冷却溝ａを有する燃焼器壁１内に取付ネジ２に
よって取付けられており、ノズルチップ３、弁ｎ４、ス
リーブ５、接続金具６、バネ８を止めるバネ止めねじ７
及びシール材９ 、１０゜１１から構成されている。な
お、第１図において、ノズルス關−）ｅＡにノズルスロ
ート穴Ｂが開口しており、このノズルスＩ’ −卜穴Ｂ
から酸化剤ガス１２が酸化ガス通路４′（第２図及び第
３図参照）を介して噴射し、溶融金属側に火炎１３が生
ずるようになっている。また、本発明における第１の筒
は接続金具乙に相当し、第２の筒はスリーブ５に相当す
るものである。The present invention will be described in detail below based on FIGS. 1 to 3. FIG. 1 is a longitudinal sectional view of a gas injection nozzle for a metal combustor according to an embodiment of the present invention, FIG. 2 is a perspective view of the valve stem, and FIG. 3 is a sectional view of the valve stem. Fig. x-x61 is an arrow view. The gas injection nozzle for a metal combustor shown in FIGS. 1 to 3 is installed with mounting screws 2 in a combustor wall 1 having a cooling groove a inside, and includes a nozzle tip 3, a valve n4, a sleeve 5, and a connecting fitting 6. , spring set screw 7 that stops spring 8
and sealing materials 9, 10° and 11. In addition, in FIG. 1, a nozzle throat hole B is opened at the nozzle hole B, and this nozzle throat hole B is opened at the nozzle throat hole B.
The oxidizing gas 12 is injected from the oxidizing gas passage 4' (see FIGS. 2 and 3) to generate a flame 13 on the molten metal side. Further, in the present invention, the first cylinder corresponds to the connecting fitting B, and the second cylinder corresponds to the sleeve 5.
上記構成からなる金属燃焼器用ガス噴射ノズルにおいて
、弁棒４とスリーブ５の接触部がメタルタッチのシート
部となっており、ここで酸化剤ガス１２と溶融金属とを
遮断する役目を有する。異常時、特に酸化剤ガス１２の
ラインの破損による溶融金属の逆流などの場合に備え弁
棒４、スリーブ５はモリブデン合金とする。また、燃焼
器の保護のためノズルチップ３はノズル組立なつつみこ
むような構造とし、これもモリブデン合金とする事で燃
焼器を保護する。その他、％に接続金具６、バネ止めね
じ７及びバネ８はステンレス系とし、万一、ノズル組立
内で反応しても、これらが溶融する事で冷却効果を持た
せ、反応をとめると共Ｋ、逆流通路を詰まらせるように
する。In the gas injection nozzle for a metal combustor having the above configuration, the contact portion between the valve rod 4 and the sleeve 5 is a metal touch seat portion, which has the role of blocking the oxidizing gas 12 and the molten metal. The valve stem 4 and sleeve 5 are made of molybdenum alloy in case of abnormality, particularly in the case of backflow of molten metal due to breakage of the oxidizing gas 12 line. Further, to protect the combustor, the nozzle tip 3 has a structure that encloses the nozzle assembly, and is also made of a molybdenum alloy to protect the combustor. In addition, the connecting fitting 6, spring set screw 7, and spring 8 are made of stainless steel, so that even if a reaction occurs inside the nozzle assembly, they will melt and have a cooling effect to stop the reaction. , causing backflow passages to become clogged.
本発明は、以上詳記したよ５に、弁棒、第２の筒（スリ
ーブ）及びノズルチップを耐火金属で形成したので、異
常燃焼時においてもシート部を極力保護し、逆流を防止
する効果が生ずるものである。また、万一逆流しても、
はね及び第１０筒（接続金具）を高クロム鋼製としであ
るので、これらを溶融させることで逆に冷却効果を持た
せ、異常反応をノズル組立内でくいとめると共に、逆流
する通路を詰まらせることができるものである。さらに
、本発明では、内部に第２０筒（スリーブ）、弁棒及び
はね材を内包するノズルチップを備えたものであるから
、換言ずれは、ノズルチップをノズル組立をっつむよう
に配設したものであるから、燃焼器への影響を防止する
効果も生ずるものである。As described in detail above, in the present invention, the valve stem, the second cylinder (sleeve), and the nozzle tip are made of refractory metal, so that even in the event of abnormal combustion, the seat portion is protected as much as possible and the effect of preventing backflow is achieved. It is something that occurs. Also, even if there is a backflow,
Since the spring and the 10th cylinder (connecting fittings) are made of high chromium steel, melting them has a cooling effect, preventing abnormal reactions within the nozzle assembly and clogging the passage for backflow. It is something that can be done. Furthermore, since the present invention is equipped with a nozzle tip that includes a 20th cylinder (sleeve), a valve stem, and a spring material, the nozzle tip is arranged so as to hold the nozzle assembly. Therefore, it also has the effect of preventing the influence on the combustor.
第１図は本発明の実施例である金属燃焼器用ガス噴射ノ
ズルの縦断面図であり、第２図は弁棒の斜視図であり、
第３図は弁棒の断面図であって、第１図Ｘ−Ｘ巌矢視図
である。
１・・・燃焼器壁
２・・・取付ねじ
３・・・ノズルチップ
４・・・弁棒
４′・・・酸化ガス通路
５・・・スリーブ
６・・・接続金具
７・・・はね止めねじ
８・・・はね
９．１０．１１・・・シール材
１２・・・酸化剤ガス
１３・・・火炎
ａ・・・冷却溝
Ａ・・・ノズルスロート部
Ｂ・・・ノズルスロート穴
復代理人 内 １） 明
復代理人 萩 原 亮 −FIG. 1 is a longitudinal sectional view of a gas injection nozzle for a metal combustor according to an embodiment of the present invention, and FIG. 2 is a perspective view of a valve stem.
FIG. 3 is a sectional view of the valve stem, taken along the line XX in FIG. 1. 1... Combustor wall 2... Mounting screw 3... Nozzle tip 4... Valve stem 4'... Oxidizing gas passage 5... Sleeve 6... Connection fitting 7... Splash Set screw 8...Spring 9.10.11...Seal material 12...Oxidant gas 13...Flame a...Cooling groove A...Nozzle throat part B...Nozzle throat hole Sub-agents 1) Meifuku agent Ryo Hagiwara -
Claims (1)
１の筒に嵌着して第１の筒内に固定される第２の筒と、
該第２の筒とのずりあい時にガス流路をふさぐ頭部が形
成されその側、部に！ス流路を備えた弁棒と、両側が弁
、棒と第ンの筒とに連接しガス送給停止時に第２の筒と
弁棒と、かすりあい状態となるように応力が生じるばね
と、溶融金属側に第１の筒と連接し内部に第２の筒、弁
棒及びばね材を内包するノズルチップとを備えた金属燃
焼器用ガス噴射ノズルにおい、て、弁棒、第２の筒及び
ノズルチップを耐火金属で形成し、はね及び第１の筒を
高クロム鋼で形成した事を特徴とする金属燃焼器用ガス
噴射ノズル。a first cylinder connected to a gas pipe for supplying oxidant gas; a second cylinder fitted into the first cylinder and fixed within the first cylinder;
When it is misaligned with the second cylinder, a head that blocks the gas flow path is formed on that side, part! A valve stem with a gas flow path, a valve on both sides, and a spring that is connected to the stem and the second cylinder and generates stress so that the second cylinder and the valve stem come into contact with each other when gas supply is stopped. In a gas injection nozzle for a metal combustor, the gas injection nozzle for a metal combustor is equipped with a nozzle tip connected to a first cylinder on the molten metal side and containing a second cylinder, a valve stem, and a spring material therein, the valve stem, the second cylinder; and a gas injection nozzle for a metal combustor, characterized in that the nozzle tip is made of a refractory metal, and the blade and the first tube are made of high chromium steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58236070A JPS60129555A (en) | 1983-12-16 | 1983-12-16 | Gas injection nozzle for metal burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58236070A JPS60129555A (en) | 1983-12-16 | 1983-12-16 | Gas injection nozzle for metal burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60129555A true JPS60129555A (en) | 1985-07-10 |
Family
ID=16995269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58236070A Pending JPS60129555A (en) | 1983-12-16 | 1983-12-16 | Gas injection nozzle for metal burner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60129555A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0838633A1 (en) * | 1996-10-25 | 1998-04-29 | The Boc Group, Inc. | Oxidation- and sulphidation resistant burner |
-
1983
- 1983-12-16 JP JP58236070A patent/JPS60129555A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0838633A1 (en) * | 1996-10-25 | 1998-04-29 | The Boc Group, Inc. | Oxidation- and sulphidation resistant burner |
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