JPS5977213A - Gas nozzle - Google Patents
Gas nozzleInfo
- Publication number
- JPS5977213A JPS5977213A JP18859282A JP18859282A JPS5977213A JP S5977213 A JPS5977213 A JP S5977213A JP 18859282 A JP18859282 A JP 18859282A JP 18859282 A JP18859282 A JP 18859282A JP S5977213 A JPS5977213 A JP S5977213A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- air
- introducing ports
- nozzle body
- gas 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
Links
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000010926 purge Methods 0.000 abstract description 2
- 230000002000 scavenging effect Effects 0.000 abstract description 2
- 238000002347 injection Methods 0.000 abstract 4
- 239000007924 injection Substances 0.000 abstract 4
- 238000000034 method Methods 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 52
- 238000002485 combustion reaction Methods 0.000 description 9
- 239000000446 fuel Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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
- F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
- F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
- Pre-Mixing And Non-Premixing Gas Burner (AREA)
Abstract
Description
【発明の詳細な説明】 本発明はガスバーナのガスノズルに関するものである。[Detailed description of the invention] The present invention relates to a gas nozzle for a gas burner.
ＬＰＧ系等発熱量が高く、また比重が大きいガス燃料に
おいては、燃焼停止に際し燃料の供給を遮断しても即時
に完全消化せず、ガスノズル本体内と遮断弁からバーナ
までのガス供給管に残留する燃料ガスが徐々にガス噴出
口から流出してあと燃えすることが多い。これは比重が
大きい為空気との置換が早く比較的早いスピードで残留
ガスが流れ出すことと、そのガスの発熱量が高いため自
燃力が強く、火が消えにくいことによるものである。Gas fuels with high calorific value and high specific gravity, such as LPG, do not completely digest immediately even if the fuel supply is cut off when combustion is stopped, and remain in the gas nozzle body and the gas supply pipe from the shutoff valve to the burner. In most cases, the fuel gas gradually flows out from the gas outlet and burns afterward. This is because the residual gas flows out at a relatively fast speed due to its high specific gravity, and because the residual gas has a high calorific value, it has a strong self-combustion power and is difficult to extinguish.
しかし乍ら、強制的に燃焼させているものではない為に
（その他空気不足になる場合もある）このあと燃えは不
完全燃焼の状態になり、これ等のガス燃料は炭素分を多
く含むことからすすが発生する結果となる。同時にこの
不完全燃焼ガスは比重が軽いためそのま＼バーナ内に逆
流してバーナのガスノズル本体内やその供給配管内等ガ
ス通路にすすとして堆積する弊害を生ずることになる。However, since it is not forced to burn (there may be other cases where there is a lack of air), the combustion is incomplete, and these gas fuels contain a large amount of carbon. This results in the formation of soot. At the same time, since the incompletely combusted gas has a low specific gravity, it flows back into the burner and accumulates as soot in the gas passages, such as within the gas nozzle body of the burner and its supply piping.
この点に鑑み開発された本発明のガスノズルは燃料遮断
により速やかに消火していわゆるあと燃えをなくするよ
うに工夫したものである。即ちガス噴出口付近に空気導
入口を穿孔し、燃焼停止後ポストパージ（炉内掃気）の
ためしばらく送り続けられる空気により燃料ガス通路に
エアカーテン火
を作って残留ガスの流出を防害し、速やかに消化するも
のである。なおこの時若干のガス分が流出しても極端な
過剰空気となりガスと空気の混合比か可燃限界からはず
れるために火は消える。なお本発明により空気をガスノ
ズル本体内に導入する結果燃焼中は一部予混合の燃焼方
式となり燃焼促進の効果がある。The gas nozzle of the present invention, developed in view of this point, is designed to quickly extinguish the fire by cutting off the fuel and eliminate so-called afterburning. In other words, an air inlet is drilled near the gas outlet, and after the combustion has stopped, the air that continues to be sent for a while for post-purging (furnace scavenging) creates an air curtain fire in the fuel gas passage to prevent the residual gas from leaking out. It is something that can be digested. Even if a small amount of gas leaks out at this time, there will be an extreme excess of air, which will cause the mixture ratio of gas and air to fall outside the flammable limit, and the fire will go out. In addition, as a result of introducing air into the gas nozzle body according to the present invention, a partially premixed combustion method is used during combustion, which has the effect of promoting combustion.
以下本発明のガスノズルを例示の図面に就いて詳細に説
明する。Hereinafter, the gas nozzle of the present invention will be explained in detail with reference to illustrative drawings.
ガスノズル本体（１）において、燃焼室に向けて開口し
ているガス噴出口ｆ２１ 、 （２１・・・の上流側に
（ガス供給元側を上流と言い、従ってバーナは最下流に
位置することになる）ガスノズル本体の内筒（１Ａ）及
び外筒（１Ｂ）に空気導入口（３１、（３］・・・・、
（４１、（４１・・・を穿孔し、ガス流と直交するよう
に空気をガスノズル内に導入する。In the gas nozzle body (1), there is a gas outlet f21 that opens toward the combustion chamber, on the upstream side of (21...) (the gas supply source side is called upstream, and therefore the burner is located at the most downstream position). Air inlets (31, (3)...) are installed in the inner cylinder (1A) and outer cylinder (1B) of the gas nozzle body
(41, (41...) are bored and air is introduced into the gas nozzle so as to be perpendicular to the gas flow.
」−記空気導入口はそこからガスノズル内に流入する空
気がガス（６）流を遮蔽する膜を形成するようにガスノ
ズル本体の内筒及び外筒に夫々列状に配置する。即ち空
気導入口＋３＋ 、 ＋３＋・・・からは−次空気（７
）が分割流入し手、空気導入口（４） 、 （４１・・
からは二次空気（８）が分割流入してガスノズル本体内
においてガス噴出口をふさぐように空気膜を形成する。The air inlets are arranged in rows in the inner cylinder and the outer cylinder of the gas nozzle body, respectively, so that the air flowing into the gas nozzle from the air inlets forms a membrane that blocks the flow of gas (6). In other words, -th air (7
) is divided into air inlets, air inlet (4), (41...
Secondary air (8) flows in portions from the gas nozzle body to form an air film blocking the gas outlet in the gas nozzle body.
（９）は−次空気からの導入空気、（１０）は二次空気
からの導入空気である。(9) is the air introduced from the secondary air, and (10) is the air introduced from the secondary air.
これによりガスノズル本体（１）内及びガス供給管（５
）内の残留ガスのガス噴出口からの流出を止めあと燃え
を防止するものである。なお第１図中（１１）は羽根（
ベーンＬ（１２）は燃焼筒である。This allows the inside of the gas nozzle body (1) and the gas supply pipe (5
) to prevent residual gas from flowing out from the gas outlet to prevent afterburning. Note that (11) in Figure 1 is the blade (
The vane L (12) is a combustion tube.
を
第２図はガス供給管ユニットの例寺示しｔＡｌは燃料遮
断後ガス噴出口から流れ出す残留ガスの滞留範囲を示す
。なお第２図中（２１）はガストレーナ、（２２）は遮
断弁、（２６）はガス量調整弁、（２４）はバーナ止弁
、（２５）はフレームアレスタ、（２６）はパイロット
コック、（２７）はガス、（２Ｂ）はコック、（２９）
はガス圧下限スイッチ１． （３０）はガス圧上限スイ
ッチ、（３１）はガス圧力計、（３２）はガス圧力計、
（３３）はコントロールモータ、（３４）はバーナ本体
、（３５）はガスノズルである。FIG. 2 shows an example of a gas supply pipe unit, and tAl indicates the retention range of residual gas flowing out from the gas outlet after fuel cutoff. In Figure 2, (21) is the gas strainer, (22) is the cutoff valve, (26) is the gas amount adjustment valve, (24) is the burner stop valve, (25) is the flame arrester, (26) is the pilot cock, (27) is gas, (2B) is cock, (29)
is the gas pressure lower limit switch 1. (30) is a gas pressure upper limit switch, (31) is a gas pressure gauge, (32) is a gas pressure gauge,
(33) is a control motor, (34) is a burner body, and (35) is a gas nozzle.
第１図は本発明のガスノズルを説明する縦断面図、第２
図はガス供給管ユニットを説明する図を夫々例示してい
る。
（１）・・・ガスノズル本体、（ＩＡ）・・・内筒、（
１Ｂ）・・・外筒、（２）・・・ガス噴出口、（３）・
・・空気導入口、（４）・・・空気導入口、（５）・・
・ガス供給管、（６）・・・ガス、（７）・・・−次空
気、（８）・・・二次空気、（９）・・・−次空気から
の導入空気、（１０）・・・二次空気からの導入空気、
（１１）・・・羽根（ベーン）、（１２）・・・燃焼筒
代理人 弁理士 吉 竹 昌Fig. 1 is a longitudinal cross-sectional view illustrating the gas nozzle of the present invention, Fig.
The figures each illustrate a diagram for explaining the gas supply pipe unit. (1)... Gas nozzle body, (IA)... Inner cylinder, (
1B)...Outer cylinder, (2)...Gas outlet, (3)...
...Air inlet, (4)...Air inlet, (5)...
・Gas supply pipe, (6)...gas, (7)...-secondary air, (8)...secondary air, (9)...air introduced from -secondary air, (10) ...Air introduced from secondary air,
(11)... Vane, (12)... Combustion tube agent Patent attorney Masaru Yoshitake
Claims (1)
の空気導入口は空気がガス流と略々直角方向に噴出する
ような位置に且つ噴出空気流がガス流を遮ぎる膜を形成
するように多数を列状に配置されてなることを特徴とす
るガスバーナのガスノズル。(1) An air inlet is provided on the upstream side of the gas outlet, and the air inlet is positioned so that air is ejected in a direction approximately perpendicular to the gas flow, and the ejected air flow forms a film that blocks the gas flow. A gas nozzle for a gas burner, characterized in that a large number of gas nozzles are arranged in a row so as to
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18859282A JPS5977213A (en) | 1982-10-26 | 1982-10-26 | Gas nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18859282A JPS5977213A (en) | 1982-10-26 | 1982-10-26 | Gas nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5977213A true JPS5977213A (en) | 1984-05-02 |
| JPS635642B2 JPS635642B2 (en) | 1988-02-04 |
Family
ID=16226354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18859282A Granted JPS5977213A (en) | 1982-10-26 | 1982-10-26 | Gas nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5977213A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0596725U (en) * | 1992-04-21 | 1993-12-27 | 巌 長沢 | Nozzle structure of small and simple gas stove |
| WO2025038652A1 (en) * | 2023-08-14 | 2025-02-20 | Air Products And Chemicals, Inc. | Burner and method of operation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS471744U (en) * | 1971-01-21 | 1972-08-19 | ||
| JPS5151483U (en) * | 1974-10-16 | 1976-04-19 | ||
| JPS5236277U (en) * | 1975-09-06 | 1977-03-15 |
-
1982
- 1982-10-26 JP JP18859282A patent/JPS5977213A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS471744U (en) * | 1971-01-21 | 1972-08-19 | ||
| JPS5151483U (en) * | 1974-10-16 | 1976-04-19 | ||
| JPS5236277U (en) * | 1975-09-06 | 1977-03-15 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0596725U (en) * | 1992-04-21 | 1993-12-27 | 巌 長沢 | Nozzle structure of small and simple gas stove |
| WO2025038652A1 (en) * | 2023-08-14 | 2025-02-20 | Air Products And Chemicals, Inc. | Burner and method of operation |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS635642B2 (en) | 1988-02-04 |
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