JP2000146126A - Gas burner - Google Patents
Gas burnerInfo
- Publication number
- JP2000146126A JP2000146126A JP10320550A JP32055098A JP2000146126A JP 2000146126 A JP2000146126 A JP 2000146126A JP 10320550 A JP10320550 A JP 10320550A JP 32055098 A JP32055098 A JP 32055098A JP 2000146126 A JP2000146126 A JP 2000146126A
- Authority
- JP
- Japan
- Prior art keywords
- flame
- inner peripheral
- premixed gas
- peripheral surface
- gas chamber
- 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
Landscapes
- Gas Burners (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は燃焼調理器具である
コンロに関し、特に被加熱物を加熱するバーナに関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stove which is a cooking appliance, and more particularly to a burner for heating an object to be heated.
【０００２】[0002]
【従来の技術】従来この種のバーナは、特開平９−１５
９１１９号公報に記載されているようなものがあった。
このバーナは図４に示すように、バーナ本体１０１の内
周面に内側に向く多数の炎口１０２を内周面の周方向に
列設し、バーナ本体１０１の底面は遮蔽板１０３で閉止
されている。理論空気量の３０％以内の空気を混合した
予混合ガスをバーナ本体１０１に供給し、炎口１０２か
ら噴出させ遮蔽板１０３によって２次空気の供給を抑え
て燃焼させて、高い熱効率を確保しながら、低ＮＯｘを
実現するというものであった。2. Description of the Related Art Conventionally, a burner of this kind is disclosed in
There was one described in US Pat. No. 9119.
As shown in FIG. 4, the burner has a large number of flame ports 102 directed inward on the inner peripheral surface of the burner main body 101 in a row in the circumferential direction of the inner peripheral surface. The bottom surface of the burner main body 101 is closed by a shielding plate 103. ing. A premixed gas mixed with air within 30% of the theoretical air amount is supplied to the burner main body 101, and is blown out from the flame port 102 to suppress the supply of the secondary air by the shielding plate 103 and burn, thereby securing high thermal efficiency. However, low NOx was realized.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら上記従来
のバーナをコンロ等に応用した場合、火炎が中央部に集
中しているので熱効率を高くすることができるが、炒め
ものや煮物や焼き料理では火力が中央に集中しているの
で、中央部が焦げやすく逆に周辺部は火力不足となるの
で、火力分布が均一でなく調理勝手が悪いという課題が
あった。また火力分布を均一化するために炎口１０２が
設けられている内周面の径を大きくすると、火力の中央
集中は緩和されるが、中央部の温度が低下するので熱効
率が低下するとうい課題があった。However, when the above-mentioned conventional burner is applied to a stove or the like, the flame is concentrated at the central portion, so that the heat efficiency can be increased. However, since the heat is concentrated in the center, the central portion is easily burnt, and conversely, the peripheral portion is insufficient in heat power. In addition, if the diameter of the inner peripheral surface where the flame outlet 102 is provided is increased in order to make the thermal power distribution uniform, the central concentration of the thermal power is eased, but the temperature at the central part is reduced, so that the thermal efficiency is reduced. was there.
【０００４】そこで本発明は熱効率の向上と火力分布の
均一化の両立を図り、また煮こぼれ汁が生じた場合にも
炎口が目詰まりし難いバーナを実現しようとするもので
ある。[0004] Therefore, the present invention is intended to achieve both improvement of thermal efficiency and uniformity of thermal power distribution, and to realize a burner in which the flame opening is hardly clogged even when boiling water is generated.
【０００５】[0005]
【課題を解決するための手段】本発明は上記課題を解決
するために、上方に向かって内径が拡大する予混合気室
の内周面に複数段の内向き炎口部を設け、各段の炎口部
にひさし部を設けたものである。According to the present invention, in order to solve the above-mentioned problems, a plurality of inwardly directed flame ports are provided on the inner peripheral surface of a premixed gas chamber whose inner diameter increases upward. Is provided with an eave portion at the flame opening.
【０００６】上記発明によれば、予混合気室の内周面は
上方に向かって内径が拡大しており、その内周面には複
数段の内向き炎口部を設けているので、炎口部を環状の
予混合気室の内周部から外周部まで全面に列設できる。
予混合気室に燃料と１次空気の予混合ガスが供給される
と、炎口部から予混合ガスが噴出され内周面の各段毎に
１次炎が形成されるので、予混合気室の内周部から外周
部に至るまで各段毎に内向き火炎を形成することがで
き、各段の内向き火炎は高温の燃焼ガスの浮力によって
上昇するので火炎は柱状の噴流となって被加熱物の底面
に達し、被加熱物の底面の中心部から外周部までの全面
を高温の燃焼ガスで加熱することができるので、熱効率
を向上でき、さらに加熱量が中心部に集中せず均一化で
きるので調理勝手が向上できる。また各段の炎口部には
ひさし部を設けているので煮こぼれ汁が落下した場合に
も、ひさし部によって炎口部が隠れているので、煮こぼ
れ汁による炎口部の目詰まりを防止できる。According to the above invention, the inner peripheral surface of the premixed gas chamber has an inner diameter that increases upward, and the inner peripheral surface is provided with a plurality of stages of inwardly directed flame openings. The mouths can be arranged on the entire surface from the inner periphery to the outer periphery of the annular premixed gas chamber.
When the premixed gas of the fuel and the primary air is supplied to the premixed gas chamber, the premixed gas is ejected from the flame opening and the primary flame is formed at each stage of the inner peripheral surface. An inward flame can be formed for each stage from the inner peripheral part to the outer peripheral part of the chamber, and the inward flame of each stage rises due to the buoyancy of the high-temperature combustion gas, so that the flame becomes a columnar jet. Since the entire surface from the center to the outer periphery of the bottom surface of the object to be heated can be heated with the high-temperature combustion gas, the thermal efficiency can be improved, and the heating amount does not concentrate on the central portion. Since uniformity can be achieved, cooking convenience can be improved. In addition, the eaves are provided at the flame outlet of each stage, so even if the spilled juice falls, the eaves are hidden by the eaves, preventing clogging of the flame mouth by the spilled juice. it can.
【０００７】[0007]
【発明の実施の形態】本発明は、各請求項に記載の形態
で実施できるものであり、請求項１記載のように、燃料
と１次空気との予混合ガスが供給される環状でかつ底面
が閉じた予混合気室と、上方に向かって内径が拡大する
前記予混合気室の内周面と、前記内周面に列設した複数
段の内向き炎口部と、前記炎口部に設けたひさし部とを
備えたガスバーナとすることにより、予混合気室に燃料
と１次空気の予混合ガスが供給されると、炎口部から予
混合ガスが噴出され内周面の各段毎に１次炎が形成さ
れ、各段の内向き火炎は高温の燃焼ガスの浮力によって
上昇するので火炎は柱状の噴流となって被加熱物の底面
に達し、被加熱物の底面の全面を高温の燃焼ガスで加熱
することができるので、熱効率を向上でき、さらに加熱
量が中心部に集中せず調理勝手が向上できる。また各段
の炎口部にはひさし部を設けているので煮こぼれ汁が落
下した場合にも、ひさし部によって炎口部が隠れている
ので、煮こぼれ汁による炎口部の目詰まりを防止でき
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention can be embodied in the form described in each claim. As described in claim 1, an annular and premixed gas of fuel and primary air is supplied. A premixed gas chamber with a closed bottom surface, an inner peripheral surface of the premixed gas chamber whose inner diameter increases upward, a plurality of stages of inwardly directed flame ports arranged in the inner peripheral surface, and the flame port When a premixed gas of fuel and primary air is supplied to the premixed gas chamber by providing a gas burner provided with an eaves portion provided in the section, the premixed gas is ejected from the flame opening and the inner peripheral surface is formed. A primary flame is formed for each stage, and the inward flame of each stage rises due to the buoyancy of the high-temperature combustion gas, so that the flame becomes a columnar jet and reaches the bottom surface of the object to be heated. Since the entire surface can be heated with high-temperature combustion gas, thermal efficiency can be improved and the amount of heating can be concentrated in the center. Cooking without permission can be improved. In addition, the eaves are provided at the flame outlet of each stage, so even if the spilled juice falls, the eaves are hidden by the eaves, preventing clogging of the flame mouth by the spilled juice. it can.
【０００８】また、請求項２記載のように、ひさし部を
内側に向かって下方に傾斜させることにより、煮こぼれ
汁が落下した場合にも、ひさし部によって炎口部が隠れ
ているので、煮こぼれ汁による炎口部の目詰まりを防止
でき、ひさし部に煮こぼれ汁が溜まらないのでひさし部
の汚れの付着を低減できる。Further, as described in claim 2, the eaves portion is inclined downward toward the inside, so that even if the boiling water drops, the eaves portion hides the flame opening portion. It is possible to prevent clogging of the flame opening portion due to spilled juice, and it is possible to reduce adhesion of dirt on the eaves portion because boiled-up juice does not accumulate in the eaves portion.
【０００９】また、請求項３記載のように予混合気室の
最上面部を外側に向かって下方に傾斜させることによ
り、煮こぼれ汁が予混合気室の最上面部に落下した場合
にも、煮こぼれ汁は最上面部に沿って外側に流れるの
で、予混合気室の内周面の炎口部に煮こぼれ汁が流入し
ないので、炎口部の目詰まりを低減できる。In addition, by tilting the uppermost surface of the premixed gas chamber downward toward the outside as described in the third aspect, even when the spilled juice falls on the uppermost surface of the premixed gas chamber. Since the boiled juice flows outward along the uppermost surface, the boiled juice does not flow into the flame opening on the inner peripheral surface of the premixed gas chamber, so that clogging of the flame opening can be reduced.
【００１０】また、請求項４記載のように、燃料と１次
空気との予混合ガスが供給される環状でかつ底面が閉じ
た予混合気室と、上方に向かって内径が略階段状に拡大
する前記予混合気室の内周面と、前記内周面に列設した
複数段の内向き炎口部とを備えたガスバーナとすること
により、略階段状に拡大する予混合気室の各段の内周面
に炎口部が列設されているので、予混合気室に燃料と１
次空気の予混合ガスが供給されると、炎口部から予混合
ガスが噴出され内周面の各段毎に１次炎が形成され、各
段の内向き火炎は高温の燃焼ガスの浮力によって上昇す
るので火炎は柱状の噴流となって被加熱物の底面に達
し、被加熱物の底面の全面を高温の燃焼ガスで加熱する
ことができるので、熱効率を向上でき、さらに加熱量が
中心部に集中せず調理勝手が向上できる。また各段の内
周面は略階段状なので炎口部は鉛直面に形成され煮こぼ
れ汁が落下した場合にも、煮こぼれ汁は内周面を速やか
に下方に移動するので、煮こぼれ汁が炎口部に侵入し難
くなり炎口部の目詰まりを低減できる。According to a fourth aspect of the present invention, there is provided an annular premixed gas chamber having a closed bottom surface to which a premixed gas of fuel and primary air is supplied, and an inner diameter substantially stepwise upward. By forming a gas burner having an inner peripheral surface of the expanding premixed gas chamber and a plurality of stages of inwardly directed flame ports arranged in a row on the inner peripheral surface, the premixed gas chamber which expands in a substantially stepped shape is formed. Since the flame outlets are arranged on the inner peripheral surface of each stage, the fuel and
When the premixed gas of the secondary air is supplied, the premixed gas is ejected from the flame opening to form a primary flame for each stage on the inner peripheral surface, and the inward flame of each stage is a buoyancy of the high-temperature combustion gas. As the flame rises, the flame becomes a columnar jet and reaches the bottom surface of the object to be heated, and the entire bottom surface of the object to be heated can be heated with high-temperature combustion gas. Cooking convenience can be improved without concentrating on the part. In addition, since the inner peripheral surface of each step is almost step-shaped, the flame opening is formed in a vertical plane, and even if the spilled juice falls, the spilled juice quickly moves down the inner peripheral surface. Is less likely to enter the flame opening, and clogging of the flame opening can be reduced.
【００１１】また、請求項５記載のように、各段の炎口
部面積の総和を上方の段程大きくすることにより、上方
の段程内径が大きいので周長が大きくなり被加熱物への
加熱面積も大きくなるが、燃焼量は炎口部の面積に比例
しているので上方の段程燃焼量を大きくでき、単位面積
当たりの燃焼量を均一化できるので、被加熱物の底面へ
の加熱量を均一化できる。Further, by increasing the total sum of the area of the flame opening portion of each stage in the upper stage, the inner diameter becomes larger in the upper stage, so that the circumferential length becomes large, and the amount of heat applied to the object to be heated is increased. Although the heating area also increases, the amount of combustion is proportional to the area of the flame opening, so the upper stage can increase the amount of combustion and uniformize the amount of combustion per unit area. The amount of heating can be made uniform.
【００１２】[0012]
【実施例】以下、本発明の実施例について図面を用いて
説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１３】（実施例１）図１は本発明の実施例１にお
けるガスバーナの要部断面図である。(Embodiment 1) FIG. 1 is a sectional view of a main part of a gas burner according to Embodiment 1 of the present invention.
【００１４】図１において、１は底面が閉じられた環状
の予混合気室１であり、予混合気室１の上流側には混合
管２が接続され混合管２の開放端にはノズル３を配設し
ている。予混合気室１の内周面４は、上方に向かって内
径を拡大させたすり鉢形状であり、内周面４はひさし部
５で下段６、中段７、上段８の３段に区切られており、
各段の内周面４には複数のスリット状の炎口部９を周方
向に列設している。下段６、中段７、上段８の各段に設
ける炎口部９の総数は、下段６、中段７、上段８の面積
比に対応させた所定の炎口数としている。ひさし部５の
長さは炎口部９の投影長さと、ほぼ等しい長さである。
被加熱物である鍋１０は五徳（図示せず）によって内周
面４の上方に配置される。In FIG. 1, reference numeral 1 denotes an annular premixed gas chamber 1 having a closed bottom surface. A mixing pipe 2 is connected upstream of the premixed gas chamber 1 and a nozzle 3 is provided at an open end of the mixing pipe 2. Is arranged. The inner peripheral surface 4 of the premixed gas chamber 1 has a mortar shape whose inner diameter is increased upward, and the inner peripheral surface 4 is divided by an eave portion 5 into three stages of a lower stage 6, a middle stage 7, and an upper stage 8. Yes,
A plurality of slit-shaped flame opening portions 9 are arranged in the circumferential direction on the inner peripheral surface 4 of each step. The total number of flame ports 9 provided in each of the lower 6, middle 7, and upper 8 rows is a predetermined number of flame ports corresponding to the area ratio of the lower 6, middle 7, and upper rows 8. The length of the eave portion 5 is substantially equal to the projection length of the flame opening 9.
The pot 10 to be heated is placed above the inner peripheral surface 4 by means of a virtue (not shown).
【００１５】次に動作、作用について説明する。燃料ガ
スをノズル３から噴出させると、混合管２のエジェクタ
作用によって１次空気が吸引され、予混合ガスが予混合
気室１に供給され、内周面４の各段に設けられた炎口部
９から噴出し、下段６、中段７、上段８の各段に１次炎
１１が形成される。炎口部９は内周面４に設けられてい
るので、１次炎１１は中心部に向かって互いに対向する
ような内向き火炎状に形成されるが、予混合気室１の底
面を閉じていることと、高温の燃焼ガスの浮力によって
１次炎１１及び燃焼ガスは上方に向かう流れとなり予混
合気室１から噴出し、予混合気室１の周囲から供給され
る２次空気１２によって２次炎１３が形成され、火炎及
び燃焼ガスは円柱状の噴流となって鍋１０の底面に衝突
し鍋１０を加熱する。下段６で形成される火炎は下段６
の内径が小さいので鍋１０の中心部を加熱し、中段７、
上段８へ順次内径が大きくなるので鍋１０の底面全体を
加熱することができ、加熱量が中心部に集中せず焼き分
布に偏りがなく調理勝手が向上できる。Next, the operation and operation will be described. When the fuel gas is ejected from the nozzle 3, the primary air is sucked by the ejector action of the mixing pipe 2, the premixed gas is supplied to the premixed gas chamber 1, and the flame ports provided at each stage of the inner peripheral surface 4 are provided. The primary flame 11 is formed in each of the lower stage 6, the middle stage 7, and the upper stage 8 by jetting from the part 9. Since the flame opening 9 is provided on the inner peripheral surface 4, the primary flame 11 is formed in an inward flame shape facing each other toward the center, but the bottom surface of the premixed gas chamber 1 is closed. That is, the primary flame 11 and the combustion gas flow upward due to the buoyancy of the high-temperature combustion gas. The primary flame 11 and the combustion gas are ejected from the premixed gas chamber 1. The secondary flame 13 is formed, and the flame and the combustion gas collide with the bottom surface of the pot 10 as a cylindrical jet and heat the pot 10. The flame formed in the lower stage 6 is
Because the inside diameter of the pan is small, heat the center of the pot 10
Since the inner diameter gradually increases toward the upper stage 8, the entire bottom surface of the pot 10 can be heated, and the amount of heating is not concentrated at the central portion, the distribution of grilling is not biased, and cooking convenience can be improved.
【００１６】さらに、鍋１０の底面全体に火炎及び燃焼
ガスの噴流が衝突するので、高温ガスの衝突噴流によっ
て熱伝達率が大きくできかつ鍋１０の底面全体が高温ガ
ス流れで包まれるので伝熱面積も大きくできるので伝熱
量を大きくでき、熱効率を向上させることができる。ま
た各段の炎口部９には炎口部９の投影長さと等しいひさ
し部５を設けているので煮こぼれ汁が落下した場合に
も、ひさし部５によって炎口部９が隠れているので、煮
こぼれ汁による炎口部９の目詰まりを防止できる。Further, since the flame and the combustion gas jet collide with the entire bottom surface of the pan 10, the heat transfer coefficient can be increased by the high-temperature gas impinging jet, and the entire bottom surface of the pan 10 is covered with the high-temperature gas flow. Since the area can be increased, the amount of heat transfer can be increased, and the thermal efficiency can be improved. In addition, since the eaves portion 9 of each stage is provided with the eaves portion 5 equal to the projected length of the eaves portion 9, the eaves portion 5 hides the eaves portion 9 even when the spilled juice falls. In addition, clogging of the flame opening 9 due to boiling water can be prevented.
【００１７】また、下段６、中段７、上段８の各段に設
ける炎口部９の各段の総数は、下段６、中段７、上段８
の面積比に対応させた所定の炎口数としているので、各
段の単位面積当たりの炎口数をほぼ同じにすることがで
き、従って各段の単位面積当たりの燃焼量を均一化でき
るので、鍋１０への加熱量を均一化できる。The total number of stages of the flame opening 9 provided in each of the lower stage 6, the middle stage 7, and the upper stage 8 is as follows.
The number of flame ports per unit area of each stage can be made substantially the same, and the amount of combustion per unit area of each stage can be made uniform because the number of flame ports corresponding to the area ratio of The amount of heating to 10 can be made uniform.
【００１８】（実施例２）図２は本発明の実施例２にお
けるガスバーナの要部断面図である。(Embodiment 2) FIG. 2 is a sectional view of a main part of a gas burner according to Embodiment 2 of the present invention.
【００１９】実施例１と異なる点は、ひさし部５を内側
に向かって下方に傾斜させたひさし部１４としたことで
あり、さらに予混合気室１の最上面部１５を外側に向か
って下方に傾斜させたことである。The difference from the first embodiment is that the eave portion 5 is an eave portion 14 inclined downward inward, and the uppermost surface portion 15 of the premixed gas chamber 1 is downwardly directed outward. It is to be inclined.
【００２０】なお実施例１と同一符号のものは同一構成
を有し、説明は省略する。次に動作、作用について説明
する。煮こぼれ汁が鍋１０の側面部から底面へ移動し炎
口部９に落下した場合にも、ひさし部１４によって炎口
部９が隠れているので、煮こぼれ汁による炎口部９の目
詰まりを防止でき、ひさし部１４は下方に傾斜している
ので煮こぼれ汁が溜まらないのでひさし部１４の汚れの
付着を低減できる。The components having the same reference numerals as in the first embodiment have the same configuration, and the description thereof will be omitted. Next, the operation and operation will be described. Even when the spilled juice moves from the side portion to the bottom surface of the pot 10 and falls into the flame opening 9, since the flame opening 9 is hidden by the eaves portion 14, the flame opening 9 is clogged by the boiling juice. Can be prevented, and since the eaves portion 14 is inclined downward, no boiled-up juice is accumulated, so that adhesion of dirt on the eaves portion 14 can be reduced.
【００２１】また、予混合気室１の最上面部１５を外側
に向かって下方に傾斜させているので、煮こぼれ汁が予
混合気室１の最上面部１５に落下した場合にも、煮こぼ
れ汁は最上面部１５に沿って外側に流れるので、予混合
気室１の内周面４の炎口部９に煮こぼれ汁が流入しない
ので、炎口部９の目詰まりを低減できる。Further, since the uppermost surface portion 15 of the premixed gas chamber 1 is inclined downward toward the outside, even if the spilled juice falls on the uppermost surface portion 15 of the premixed gas chamber 1, the boiling can be performed. Since the spilled juice flows outward along the uppermost surface portion 15, the spilled juice does not flow into the flame opening 9 of the inner peripheral surface 4 of the premixed gas chamber 1, so that the clogging of the flame opening 9 can be reduced.
【００２２】（実施例３）図３は本発明の実施例３にお
けるガスバーナの要部断面図である。(Embodiment 3) FIG. 3 is a sectional view of a main part of a gas burner according to Embodiment 3 of the present invention.
【００２３】実施例１と異なる点は、予混合気室１の内
周面４を上方に向かって内径が略階段状に拡大する内周
面１６としたことである。The difference from the first embodiment is that the inner peripheral surface 4 of the premixed gas chamber 1 is formed as an inner peripheral surface 16 whose inner diameter increases in a substantially stepwise manner upward.
【００２４】なお実施例１と同一符号のものは同一構成
を有し、説明は省略する。次に動作、作用について説明
する。予混合ガスが内周面４の各段に設けられた炎口部
９から噴出され、実施例１と同様に下段６、中段７、上
段８の各段に１次炎１１が形成され中心部に向かって互
いに対向するような内向き火炎状となり、予混合気室１
の周囲から供給される２次空気１２によって２次炎１３
が形成され、火炎及び燃焼ガスは円柱状の噴流となって
鍋１０の底面に衝突し鍋１０の底面全体を加熱するの
で、焼き分布に偏りがなく、しかも熱効率を向上でき
る。また各段の内周面１６は略階段状なので炎口部９は
鉛直面に形成され煮こぼれ汁が落下した場合にも、煮こ
ぼれ汁は内周面１６を速やかに下方に移動するので、煮
こぼれ汁が炎口部９に侵入し難くなり炎口部９の目詰ま
りを低減できる。The components having the same reference numerals as in the first embodiment have the same configuration, and the description is omitted. Next, the operation and operation will be described. The premixed gas is ejected from the flame opening 9 provided at each stage of the inner peripheral surface 4, and the primary flame 11 is formed at each of the lower stage 6, the middle stage 7, and the upper stage 8, as in the first embodiment, and the central portion is formed. Into an inward flame that faces each other toward the premixed gas chamber 1
By the secondary air 12 supplied from the periphery of the secondary flame 13
Is formed, and the flame and the combustion gas form a columnar jet and collide with the bottom surface of the pot 10 to heat the entire bottom surface of the pot 10, so that the distribution of grilling is not biased and the thermal efficiency can be improved. In addition, since the inner peripheral surface 16 of each step is substantially stepped, the flame opening 9 is formed in a vertical plane and even when the spilled juice falls, the spilled juice quickly moves down the inner peripheral surface 16, Boiled spilled juice is less likely to enter the flame opening 9 and clogging of the flame opening 9 can be reduced.
【００２５】[0025]
【発明の効果】以上のように請求項１に係わる発明によ
れば、上方に向かって内径が拡大する予混合気室の内周
面に複数段の内向き炎口部を列設しているので、内周面
の各段ごとに１次炎が形成でき、被加熱物の底面の全面
を高温の燃焼ガスで加熱することができるので、熱効率
を向上でき、加熱量が中心部に集中せず調理勝手が向上
できる。各段の炎口部にはひさし部を設けているので煮
こぼれ汁が落下した場合にも、ひさし部によって炎口部
が隠れているので、煮こぼれ汁による炎口部の目詰まり
を防止できる。As described above, according to the first aspect of the present invention, a plurality of stages of inwardly directed flame ports are arranged on the inner peripheral surface of the premixed gas chamber whose inner diameter increases upward. Therefore, a primary flame can be formed at each step of the inner peripheral surface, and the entire bottom surface of the object to be heated can be heated with high-temperature combustion gas, so that the thermal efficiency can be improved and the amount of heating can be concentrated at the central portion. Cooking convenience can be improved. Since the eaves are provided at the flame opening of each stage, even if the spilled juice falls, the eaves are hidden by the eaves, so the clogging of the flame by the spilled juice can be prevented. .
【００２６】また、請求項２に係わる発明によれば、ひ
さし部を内側に向かって下方に傾斜させているので、煮
こぼれ汁による炎口部の目詰まりを防止でき、ひさし部
に煮こぼれ汁が溜まらないのでひさし部の汚れの付着を
低減できる。According to the second aspect of the present invention, since the eaves portion is inclined downward toward the inside, clogging of the flame opening portion by the spilled juice can be prevented, and the spilled juice can be added to the eaves portion. Since no water accumulates, the adhesion of dirt on the eaves can be reduced.
【００２７】また、請求項３に係わる発明によれば、予
混合気室の最上面部を外側に向かって下方に傾斜させて
いるので、煮こぼれ汁は最上面部に沿って外側に流れる
ので、炎口部の目詰まりを低減できる。According to the third aspect of the present invention, since the uppermost surface of the premixed gas chamber is inclined downward toward the outside, the boiling juice flows outward along the uppermost surface. Thus, clogging of the flame outlet can be reduced.
【００２８】また、請求項４に係わる発明によれば、略
階段状に拡大する予混合気室の各段の内周面に炎口部が
列設されているので、各段に内向き火炎が形成されるの
で、被加熱物の底面の全面を高温の燃焼ガスで加熱する
ことができ、熱効率を向上できる。また各段の内周面は
略階段状なので炎口部は鉛直面に形成され煮こぼれ汁が
落下した場合にも、煮こぼれ汁は内周面を速やかに下方
に移動するので、煮こぼれ汁が炎口部に侵入し難くなり
炎口部の目詰まりを低減できる。According to the fourth aspect of the present invention, since the flame openings are arranged on the inner peripheral surface of each stage of the premixed gas chamber which expands substantially in a stepwise manner, each stage has an inward flame. Is formed, the entire bottom surface of the object to be heated can be heated with the high-temperature combustion gas, and the thermal efficiency can be improved. In addition, since the inner peripheral surface of each step is almost step-shaped, the flame opening is formed in a vertical plane, and even if the spilled juice falls, the spilled juice quickly moves down the inner peripheral surface. Is less likely to enter the flame opening, and clogging of the flame opening can be reduced.
【００２９】また、請求項５に係わる発明によれば、各
段の炎口部面積の総和を上方の段程大きくするので、上
方の段程被加熱物への加熱面積も大きくなるが、上方の
段程燃焼量を大きくでき、各段の単位面積当たりの燃焼
量を均一化できるので、被加熱物の底面への加熱量を均
一化できる。According to the fifth aspect of the present invention, since the sum of the area of the flame opening in each stage is increased in the upper stage, the heating area for the object to be heated is increased in the upper stage. The combustion amount per unit area of each stage can be made uniform and the amount of heating to the bottom surface of the object to be heated can be made uniform.
【図１】本発明の実施例１におけるガスバーナの要部断
面図FIG. 1 is a sectional view of a main part of a gas burner according to a first embodiment of the present invention.
【図２】本発明の実施例２におけるガスバーナ」の要部
断面図FIG. 2 is a sectional view of a main part of a “gas burner according to a second embodiment of the present invention”;
【図３】本発明の実施例３におけるガスバーナの要部断
面図FIG. 3 is a sectional view of a main part of a gas burner according to a third embodiment of the present invention.
【図４】（ａ）従来のガスバーナの平面図 （ｂ）同バーナの要部断面図4A is a plan view of a conventional gas burner, and FIG. 4B is a sectional view of a main part of the burner.
１ 予混合気室 ４、１６ 内周面 ５、１４ ひさし部 ９ 炎口部 １５ 最上面部 Reference Signs List 1 Premixed gas chamber 4, 16 Inner peripheral surface 5, 14 Eave part 9 Flame opening part 15 Top surface part
Claims (5)
るように形成された環状でかつ底面が閉じるように形成
された予混合気室と、前記環状の予混合気室に設けられ
上方に向かって内径が拡大する内周面と、前記内周面に
列設した複数段の内向き炎口部と、前記炎口部に設けた
ひさし部とを備えたガスバーナ。1. An annular premixed gas chamber formed to supply a premixed gas of fuel and primary air and having a closed bottom surface, and provided in the annular premixed gas chamber. A gas burner comprising: an inner peripheral surface having an inner diameter that increases upwardly; a plurality of stages of inwardly directed flame ports arranged in a row on the inner peripheral surface; and an eave portion provided in the flame port.
に傾斜させた請求項１記載のガスバーナ。2. The gas burner according to claim 1, wherein the eaves are inclined downward toward the center of the ring.
向かって下方に傾斜させた請求項１記載のガスバーナ。3. The gas burner according to claim 1, wherein an upper surface of the premixed gas chamber is inclined downward from an annular center toward an outer side.
環状でかつ底面が閉じるように形成された予混合気室
と、前記環状の予混合気室に設けられ上方に向かって内
径が略階段状に拡大するように形成された内周面と、前
記内周面に列設した複数段の内向き炎口部とを備えたガ
スバーナ。4. An annular premixed gas chamber which is supplied with a premixed gas of fuel and primary air and is formed so as to have a closed bottom surface; A gas burner comprising: an inner peripheral surface formed so as to expand substantially in a stepwise manner; and a plurality of stages of inwardly directed flame openings arranged in the inner peripheral surface.
方の段程大きくなるようにした請求項１または請求項４
記載のガスバーナ。5. The method according to claim 1, wherein the sum of the areas of the respective flame outlets of the respective stages increases in the upper stage.
The described gas burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10320550A JP2000146126A (en) | 1998-11-11 | 1998-11-11 | Gas burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10320550A JP2000146126A (en) | 1998-11-11 | 1998-11-11 | Gas burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000146126A true JP2000146126A (en) | 2000-05-26 |
Family
ID=18122690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10320550A Pending JP2000146126A (en) | 1998-11-11 | 1998-11-11 | Gas burner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000146126A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100354566C (en) * | 2004-08-27 | 2007-12-12 | 湖南迅达集团有限公司 | Double-flame ring long-fire slot rotary combustor |
| CN110864290A (en) * | 2019-10-09 | 2020-03-06 | 宁波方太厨具有限公司 | Stove burner |
-
1998
- 1998-11-11 JP JP10320550A patent/JP2000146126A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100354566C (en) * | 2004-08-27 | 2007-12-12 | 湖南迅达集团有限公司 | Double-flame ring long-fire slot rotary combustor |
| CN110864290A (en) * | 2019-10-09 | 2020-03-06 | 宁波方太厨具有限公司 | Stove burner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7878800B2 (en) | Gas burner with separate feeding of the flame crowns | |
| EP0903538A1 (en) | Gas burner | |
| CN112664981B (en) | Heat shield for stove and gas stove with same | |
| EP1277013B1 (en) | Gas burner for a cooking hob | |
| CN109595556B (en) | Stove burner | |
| CN112161268A (en) | Furnace end, combustor and gas-cooker | |
| CN111256126B (en) | Burner for gas stove | |
| JP2000146126A (en) | Gas burner | |
| JP2000304212A (en) | Cooking stove | |
| JPH094853A (en) | Gas hot plate | |
| JP2003194310A (en) | Burner for gas stove | |
| JP2002333109A (en) | Burner and cooking appliance using the same | |
| CN109539262B (en) | Fire cover and burner using same | |
| JPS62155428A (en) | Burner for range | |
| CN215336313U (en) | Furnace end, combustor and gas-cooker | |
| JP2002333108A (en) | Burner and cooking appliance using the same | |
| CN217685002U (en) | Fire lid and combustor | |
| CN215863399U (en) | Burner fire cover for gas stove and burner with same | |
| CN217356885U (en) | Combustor and gas stove comprising same | |
| CN220038544U (en) | Burner for gas stove | |
| CN216769411U (en) | Gas distribution base, combustor and gas stove | |
| JP2004333018A (en) | Range burner | |
| JPH04353308A (en) | Stove burner | |
| JP2020180763A (en) | Burner for heating cooker | |
| JPS6383516A (en) | Burner port for primary premixing type gas burner |