201224368 六、發明說明： 【發明所屬之技術領域】 ^發明侧於爐灶贱燒器，具有於設在燃燒器體 益頭外周面形成開口之上下2段火口。 【先前技術】 自以往，作為此種爐灶甩燃燒器， 對下段火口供給氣體之狀態’與對上==供:= ，狀L ’開始對上段火口供給氣體時自下段火口引辦上段火 。於其中有可自僅以下段火口燃燒之弱火至匕 下奴與上奴兩火口燃燒之強火廣範圍地調節火力之優點。 之問利f獻1所記載者中，設^下段火σ與上段火口 俾盡量減弱僅 ^除相關不足，有人f考慮使τ段火口 二上端作為較其他下段火π上端更 f 迅速倾上段火σ。然而吾人發現， ，，迅速引燃上段火口，於上段火口即會易於 也Ϊ火。亦!17 ’開始對上段火口供給氣體時，即使令對上段火 二，、，·。之供給氣體量急增至在上段火口防止逆火所需之既定量， ί，之加至既定量止多少仍需花費畚間。 ϋίίΐί。，燃燒速度即會超過自上段火口喷出之氣體喷出 【先前技術文獻】 【專利文獻】 201224368 圖3) 【專利文獻1】日本專利第3586974號公報( 【發明内容】 (發明所欲解決之課題） 可防_灶用燃燒器’ 火I 引燃上段火σ時之逆火，且亦不產生較大的點 (解決課題之手段） 姆燒’本發明係—種爐_燃燒器，具有於設在 =僅氣體之狀態，與亦對上段=供給^ 給氣體時由下段火"㈣上段火口， e甘I段火口之一部分係上下方尚欠十大於其他下段火口，上端 較其他下段火口上端更位於上方之引燃火口，人上鈿 。實際喷出氣體量在達到;上 上前由引燃火口引燃上段火口。 U π而之既疋里以 在此，引燃火口上端與上段火口下端之間之上方201224368 VI. Description of the invention: [Technical field to which the invention pertains] The invention is directed to a cooker for a stove having a lower two-stage fire opening formed on an outer peripheral surface of a burner body. [Prior Art] As the above-mentioned stove burner, the state in which the gas is supplied to the lower section of the burner and the upper side == supply: =, the shape L ′ starts to supply the gas to the upper section, and the upper section is fired from the lower section. Among them, there is a strong fire that can be burned from only the following section of the fire to the strong fire of the burning of the slaves and the slaves. Among the people who asked for the profit of the 1st, the fire σ and the upper section of the fire were reduced as much as possible. In addition, some people f considered that the upper end of the τ section of the crater is more expensive than the upper part of the lower part of the fire π. σ. However, I found that, quickly igniting the upper section of the fire, it will be easy to bonfire in the upper section of the fire. Also! 17 ‘When the gas is supplied to the upper section of the fire, even if the upper part of the fire is fired, 2, . The amount of supplied gas is soaring to the amount required to prevent backfire in the upper section of the fire, and it is still necessary to add to the amount of both. Ϋίίΐί. In the case of the gas, the gas is ejected from the upper portion of the fire. [PRIOR ART DOCUMENT] [Patent Document 1] 201224368 FIG. 3) [Patent Document 1] Japanese Patent No. 3,586,974 (Summary of the Invention) Problem) It can prevent _ stove burner 'Fire I ignite the fire in the upper part of the fire σ, and does not produce a large point (the means to solve the problem) 姆烧' the invention is a kind of furnace _ burner, with In the state of = only gas, and also the upper section = supply ^ gas supply by the lower section of the fire ("four) upper section of the fire mouth, part of the e-I section of the fire mouth is more than ten is greater than the other lower section of the fire mouth, the upper end is lower than the other lower section The upper end of the crater is located at the upper igniting crater, and the person is on the raft. The actual amount of gas is being reached; the upper part is ignited by the igniting crater. The upper part of the igniting crater is here. Above the lower end of the upper section
供給氣體時，供給上段火口之供給氣S P吏⑵曰至於上&火口防止逆火所需之既定量，來自上 :際=體量:亦會在埤既定量以上前由引燃火口引燃上段火 二3 另一方面，本發明中，設定引燃火口上 ίί3ttΐ下方向距離可防止來自上段火口之實 ^出乱體里賴於上段火σ防止逆火所f之既定量以上前由引 、、口引燃上段火口，故▼防止引燃時逆火。 ，離=:火：上：方向尺寸之u倍以上,即可防 上前由引燃火Π引燃上段火σ 4若該上下方向距 201224368 i日雜。技^ 即火’有所產生之點火聲大之虞。 =於，，本發明中，奴該上下方向距 之2.5倍以下，故引燃上段火口不會過遲，所產生之點= 且上下方向尺寸較大的引燃火口僅係下段火 燃火口以外的下段火口的上端位置 ^ 夠低。因此，可充分減弱僅以下段火口姆口而^ 可確保火力之調節細顧 氣w被加熱物之火力， 且於本發明，在燃燒器頭外周面，亦可形成自火ϋ卜 ;=卜:伸tr下的懸伸面。又，若二== 上„外方之伸出量在引燃火口上下方向尺寸的^立 上’即可抑制料敎μ生之火 向距，引燃火口上下方向尺寸之L5倍 到於上段火口防止逆火所需之既定量以上 上段火上；方Ϊ上Ϊ火口。在此，縮短該上下方向距離會增大 ....上下方向尺寸，對增加強火時之火力有用、有利。又， 引燃火σ上端朝徑向外方之伸出量若超過引燃火口 定此伸:旦為二H #會產生對上段火口之引燃不良’故應設 疋此伸出里為引燃火口上下方向尺寸之1/3〜〗倍。 之想載置之矮座之複數矮座爪位於同一方位 準部二複數處部分係矮座爪對準部分，絲矮座爪對 ί完口，於上段火口產生之火焰即會接觸矮座爪而 來点因此，於各矮座爪對準部分宜不形成上段火口而僅 寸需柄二了 °且形成於矮座爪對準部分之下段火口上下方向尺 俾火焰不接觸矮座爪。因此，僅以下段火口燃燒 右;於其他部分降低了於矮座爪對準部分產生之熱量，熱分 引辦ίό ° ί此^若於鄰接各矮座爪對準部分之周方向部分形成 “’、 尸可藉由於引燃火口產生之較大的火媳補償於矮座爪 6 201224368 對準部分之熱量降低，可實現僅以下段火口燃燒時埶分布之均一 化。 ’、 ' 【實施方式】 參照圖1即知，A係爐灶本體，B係包覆爐灶本體A上表面 之頂板’面對開設於頂板B之燃燒器用開口 B1設置爐灶用燃燒p 1。且在頂板B上’載置有包圍燃燒器用開口 B1，載置由 燃燒器1加熱之鋼專被加熱物之矮座C。又，矮座c由環狀矯座 框C1，與k放射狀安裝於i矮座框C1之複數矮座爪C2構^。 爐灶用燃燒器1包含貫穿燃燒器用開口]^之燃燒器體2,與 燃燒器體2上的燃燒器頭3。於燃燒器頭3外周面，如圖2所示， 上下2段火口 4U、4L隔著周方向的間隔形成多數開口。又，以與 =C之複數矮座爪C2位於同—方位之燃燒器頭3周方向複數處 。(^作為矮座爪對準部分3a，於各矮座爪對準部分3 ，觸矮座爪C2而導致不完全織，不形成上段火口 成下段火口 4L。 外由外側筒體2卜中間筒體22與内側_之内 苦2lH 3。於外―體.21設有自其上端部外周下垂之裙擺 91 ，匕覆頂板B燃燒盗用開口 B1之包覆環D外插裙擺部 且包覆^防止來自燃燒器用開口 B1溢出湯汁的侵入。 並^ 内周周方向1處或複數處設置突起部c3，When the gas is supplied, the supply gas SP 吏 (2) supplied to the upper section of the crater is the same as the amount required to prevent the backfire from the upper and the crater. From the upper: the volume = the ignited by the pilot burner before the enthalpy The upper part of the fire 2, on the other hand, in the present invention, setting the distance of the ίί3tt ΐ 引 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可, the mouth ignited the upper section of the fire, so ▼ to prevent backfire when igniting. , from =: fire: upper: more than u times the size of the direction, you can prevent the upper part of the fire from igniting the upper part of the fire σ 4 if the up and down direction is 201224368 i day miscellaneous. The skill ^ is the fire that has produced a loud sound. =,,, in the present invention, the slave is less than 2.5 times the distance between the upper and lower directions, so the ignition of the upper section of the fire is not too late, and the point of occurrence = the upper and lower direction of the pilot fire is only outside the lower fire burner. The upper end position of the lower section of the fire is ^ low enough. Therefore, it is possible to sufficiently weaken only the following sections of the fire mouth and ensure the adjustment of the firepower to take care of the firepower of the heated object, and in the present invention, the outer peripheral surface of the burner head may also form a self-defense; : The overhanging surface under the tr. Moreover, if two == „the outer extension of the igniting fire is in the up-and-down direction of the ignition ignite, the fire direction distance of the material 敎μsheng can be suppressed, and the upper and lower direction of the ignition crater is L5 times to the upper section. The fire mouth is required to prevent the backfire from being quantified above the upper part of the fire; the square is on the bonfire. Here, shortening the distance in the up and down direction will increase.... The up and down direction size is useful and beneficial for increasing the firepower of a strong fire. The extension of the upper end of the ignition flame σ to the radially outer side is determined to exceed the ignition igniting. If the second is H #, the ignition of the upper section of the fire will be bad. Therefore, the extension should be set as the ignition crater. The upper and lower dimensions are 1/3 to 〖 times. The plurality of short claws of the lower seat that are intended to be placed are located at the alignment part of the lower part of the same azimuth portion, and the short claws of the wire are finished. The flame generated by the upper section of the fire will contact the short claws. Therefore, the upper section of the short claws should not form the upper section of the fire, but only the handle is required to be two degrees and formed in the lower part of the lower part of the lower jaw. The direction of the flame does not touch the short claws. Therefore, only the following section of the fire burns right; The other part is reduced in the heat generated by the alignment part of the short claw, and the heat is introduced in the circumferential direction of the aligned portion of the adjacent paws to form "', the corpse can be generated by the ignition crater The larger fire compensation compensates for the lowering of the heat in the alignment portion of the lower jaw 6 201224368, which makes it possible to homogenize the distribution of the enthalpy only when the following sections are burned. [Embodiment] Referring to Fig. 1, the top plate of the upper surface of the B-type coated pan body A and the burner opening B1 opened to the top plate B are provided with a combustion pit 1 for the cooktop. Further, on the top plate B, an opening C1 surrounding the burner is placed, and a small seat C for the steel-heated object heated by the burner 1 is placed. Further, the squat c is constituted by the annular pedestal frame C1 and the plurality of short claws C2 which are radially attached to the i-seat frame C1. The burner 1 includes a burner body 2 that extends through the opening of the burner, and a burner head 3 on the burner body 2. As shown in Fig. 2, the outer peripheral surface of the burner head 3 has a plurality of openings formed in the upper and lower two-stage fire ports 4U and 4L at intervals in the circumferential direction. Further, the plurality of short legs C2 of =C are located at the same direction in the three-way direction of the burner head of the same direction. (^ as the short claw alignment portion 3a, in the short claw alignment portion 3, the lower claw C2 is caused to cause incomplete weaving, and the upper portion of the fire is not formed into the lower portion of the fire port 4L. The body 22 and the inner side are bitter 2lH 3 . The outer body. 21 is provided with a skirt 91 which is suspended from the outer periphery of the upper end portion thereof, and the top cover B is burned and the opening ring B1 is covered by the outer ring D. The cover prevents the intrusion of the soup from the burner opening B1. And the protrusion c3 is provided at one or more of the inner circumferential direction.
2 I外周形絲合突起部C3之缺口 D1，可決定矮座C 部Ϊ有嵌合燃燒器體2中間筒體22之筒 上㈣辟^直置有頭構件32就座之上環狀壁33。於 紅段;端面朝下方凹陷， 錯此在下頭構件31與上頭構件32之^上封閉’ 201224368 且於下頭構件31T表面外 側筒體21上端部之下環狀壁料。I、茔，有就座於燃燒器體2外 隔形成多數自其下端面朝上方34 ’隔著周方向間 此等溝槽下端由外侧筒體21下奴火口 4L之溝槽。又， 頭構件31之間區劃下段火口礼而。。卩封閉，藉此在燃燒器體2與下 又，於下段火口 4L，如圖3所 複數種火σ。又，形成於各矮座下方向尺寸不同之 防止火焰接觸矮座爪C2，上下刀a ^下段火口 4L為 準部分3a之間之周方向部分，带$了較小，且發矮座爪對 段火口 4L。又，若連續形成如此對較大的下 故交互形成大的下段火口 4L與小的下iH。燃燒性會惡化， 且鄰接各矮座爪對準部分3a而 方 4L其上下方向尺寸最大 2於周方向部分之下段火口 上方之引燃火口 4La。具體而古揪、〖下段火口礼上端更位於 4L之上下方向尺寸#的下段火口 4La之上下方向尺寸與 ；’引燃火口 燒器頭3外周面上段火口 4U盘下段之火上口同。且於燃 上環狀壁33與下環狀壁34之間下頭 分，亦即， 朝經向外方稍微伸出之伸出部35。| 周面之部分，形成 爐灶用燃燒器1更包含： 上I又火口 4U用弟1混合管5U ’連诵揪择哭聊，占 與内側筒體23之間之空間；及魏收讀2中間筒體22 下4又火口 4L用第2混合管5L .，連诵揪摔哭酿ο 與中間筒體22之間之空間。 1、、1體2外侧筒體21 仍照圖2即知’經由自共通氣體供給路6分支之第1八士 合管，給燃料氣體，_氣體 2久iff6L對第2混合管5l供給燃料氣體。又，i; 一管5U、几内混合燃料氣體與由各混合管5U、、5Ll、第 ”内側雜23之間之空間及下頭構件31與上頭構件幻= 8 201224368 ϊί 3 火σ 4u嘴出，來自第2混合管5L之混合氣體經 η 則湾體21與中間筒體22之間之空間及外側筒體 21與下頭構件31之間之空間自下段火口礼噴出。 第16插設事著火時開啟，熄火時關閉之源閥7，於 =ΐΐίΓ=6υ、6L’插設有連動圖示經省略之火娜 成之操作構件而開艘化之第1與第2各流量 自弱火位置至㊣火位置操作操作構件。一旦自 f構件至強火位置，第2流量調節閥8L之開度即 中r/、幵砂又逐漸增加。又，供給下段火口 4L之供給氣體量如圖5 二以a，所示’自於下段火口 &防止逆火所需之既定最小量 至最大fQLl職。另一方面，第1流量調節閥犯至 ίΐίίΪ蚊中間位置+不開閥，於超過中間位置時急速開啟 t 度:其後於朝強火位置之操作開度逐漸增加。又，自弱 φ3Ϊ作操作構件至強大位置時，如® 5中以b線所示，至達 立止不對上段火口4U供給氣體，於超過中間位置時供給上 二之供給氣體量急增至於上段火口 4U防止逆火所需之既 疋取小1 QUmin，其後漸增至最大量QUmax。 具體說明即知，下段火口 4L合計面積為163.5腿2，上段火 :u合計面積為攻石咖2時，設定QLmin為遍祕(就火口 ，載而言為2.0kCal/h/mm2)，QLmax為繼。論(就火口負載 為，，V，QUmin 為 m=Z^QUma^ 3810k邊（就火口負载而言為 於上段火口 4U亦使其燃燒時，自引燃火口 4La引燃上段火口 4U而朝強火位置側操作操作構件超過中間位置。一旦超過中間位 置，供給上段火口 4U之供給氣體量雖即會急增至QUmin，但自 上段火口 4U喷出之實際氣體量增加至QUmin止多少仍需花費時 =。其結果，在操作構件達到自中間位置朝強火位置侧位移一定 f，=圖5以c所示之位置前，來自上段火口 4U之實際噴出氣體 里於瞬間會無法增加至QUmin。又，來自上段火口 4u之實際喷 201224368 出氣體量在QUmm以上前，若由引燃火口 4La引燃上段火口 4U， 燃燒速度即會超過來自上段火口 4U之氣體喷出速度而產生逆火。 在此’以引燃火口 4La上端與上段火口 4U下端之間之上下方 向距離為LH，以引燃火口 4La之上下方向尺寸為Lh，若 LH<1.5Lh，操作操作構件超過中間位置至強火位置止時，於達到 圖5之c之位置前，亦即，於來自上段火口 4U之實 在QUmin以上前，*引燃火口心引燃上段火口 逆火之虞。另一方面，經實驗確認，若LH^15Lh，即可防止於 來自上段火口 4U之實際噴出氣體量在:QUmin以上前由引燃火口 4La引燃上段火口 4U，不產生逆火。且若LH>2 5Lh，引燃上段火 口 4U即會過遲’對於此期間内自上段火口 4U放出之多量立 =1^：’?^1^產生之點火聲大之虞。另—方面，雜實驗確認， 右 =·、，引燃上段火口 4U即不會過遲，所產生之點火聲不 大。因此’為防止產生由引燃火口 4La引燃上段火口 4u時之 火聲’需使匕此邮2.501。於本實施形態，設定 且於本實施形態’上下方向尺寸較大的引燃火口 4 ^火口札之一部分，引燃火口 4La以外的下段火口 4l之上= 上段火口w而充分降低之。因此，可充分減弱僅 4L職日請被加齡之火力，可顧火力之調節範圍 且形成於矮座爪對準部分3a之下杈火口 41<之上下方 小’故僅以下段火口礼燃燒日夺，相較於其他部分會降低= 矮堂量。然而’於本實施形'態’在鄰接各 二^對#。卩刀3a之周方向兩侧部分形成？丨燃火口 —，故 献5 1產生之較大的火㉓補償於矮座爪對準部分3a^ ”、、里，低’實現僅以下段火口 4L燃、燒時熱分布之均一化。 棚6所示之第2實施職觸7所示之第3 f 第2與第3各實施形態之基本構成與上述第 = 也目同’對與第1實施形H糊之祕辭與上述相同之符號 201224368 開口第1實施形態之不同1^在於下段火σ 4L形成 始二頭3之下部f周面(下環狀壁34之外周面)較第1實 伸向方偏移:形成自引燃火口 4U上端1^徑向外方 點在“It ^ % °且第3實施形態與第1實施形態之不同 壁3_3與下環狀壁34之間之下職件31外周 h二"w。卩％之外彳讀第1實施形態大，形成自引燃火口 4La 上鳊朝,向外方伸出而向下之懸伸面36。 ，第2、第3實施形離，藉由懸伸面36，可抑制於引燃火口 a產生之火焰升起。因此，即使設定引燃火口 4La上端與上段 火口 4U下端之間之上下方向距離LH為不滿引燃火口礼^上下 f向尺寸Lh的I.5倍，例扣ULh，亦可防止來自上段火口犯 貫喷出氣體量在QUmin以上前引燃上段米口 w，引燃時 生逆火。又，縮短LH會增大上段火口 4U之上下方向尺 強火位置增加火力有用、有利。 河仕 又，若以懸伸面36相對於引燃火口 4La上端朝徑向外方之 出1為R’R<Lh/3,即無法抑制於引燃火口 4La產生之火焰 若設定LH<1.5Lh，引燃時即有產生逆火之虞。且若R>Lh奋 產生對上段火口 4U之引燃不良。因此，宜設定Lh/3$RgLh，二 第2、第3實施形態設定R約為〇 、 【圖式簡單說明】 圖1係具備本發明申請案第1實施形態爐灶用燃燒器爐 剖面圖。 ^ ^ 圖2係第1實施形態爐灶用燃燒器之立體圖。 圖3係第1實施形態填灶用燃燒器重要部位之侧視圖。 圖4係於圖3之IV-IV線斷裂之剖面圖。 圖5係顯示對下段火口與上段火口供給之氣體 曲線圖。 ^ 圖6係第2實施形態叙灶用燃燒器相當於圖4之剖面 圖7係第3實施形態爐灶用燃燒器相當於圖4之剖面^.。 11 201224368 【主要元件符號說明】 A...爐灶本體 B…頂板 B1...燃燒器用開口 C. ..矮座 C1...矮座框 C2...矮座爪 C3...突起部 D. ..包覆環 D1...缺口2 I The notch D1 of the outer peripheral wire-shaped projection C3 can be determined on the cylinder of the intermediate portion 22 of the lower portion C of the fitting burner body 2 (4), and the annular member is placed on the upper surface of the head member 32. 33. In the red section, the end face is recessed downward, and the upper wall member 31 and the upper head member 32 are closed to the upper end member 201224368 and the annular wall material is formed below the upper end portion of the outer side tubular body 21 of the lower head member 31T. I, 茔, there are grooves that are seated in the burner body 2, and a plurality of grooves are formed from the lower end face 34 ′ across the circumferential direction between the lower ends of the grooves. Moreover, the head member 31 is divided between the lower section and the fire. . The crucible is closed, thereby being in the burner body 2 and down, and in the lower section of the fire mouth 4L, as shown in Fig. 3, the plurality of kinds of fire σ. Further, the flame preventing contact claw C2 having a different size in the direction of each lower seat is formed, and the upper and lower blades a ^ the lower portion 4L is a circumferential portion between the quasi portions 3a, the belt is smaller, and the short claw pair Section crater 4L. Further, if such a large difference is formed continuously, a large lower section 4L and a small lower iH are formed. The flammability is deteriorated, and adjacent to each of the short claw alignment portions 3a, the square 4L has the largest dimension in the up and down direction 2 and the ignition crater 4La above the fire portion below the circumferential portion. Specifically, the ancient 揪, the lower section of the next section of the fire mouth is located in the lower section of the upper direction of the 4L dimension # # 4La upper and lower direction size and; ' igniting the fire mouth burner 3 outer peripheral surface of the fire mouth 4U disk lower section of the fire on the same mouth. Further, a lower portion between the annular wall 33 and the lower annular wall 34 is ignited, that is, a projecting portion 35 which projects slightly outward. The part of the circumferential surface, the burner for the formation of the stove 1 contains: On the I and the fire mouth 4U with the brother 1 mixing tube 5U 'connected to cry, talk about the space between the inner cylinder 23; and Wei received 2 The middle cylinder 22 and the fourth port 4L are connected to the space between the intermediate cylinder 22 by the second mixing tube 5L. 1. The first outer tubular body 21 of the first body 2 is still known as the first october joint pipe branched from the common gas supply path 6, and the fuel gas, the gas 2 long iff6L, supplies the fuel to the second mixing pipe 51. gas. Further, i; a tube of 5 U, a mixture of fuel gas and a space between each of the mixing tubes 5U, 5L1, and the inner side of the inner 23 and the lower member 31 and the upper member illusion = 8 201224368 ϊί 3 fire σ 4u In the mouth, the mixed gas from the second mixing tube 5L is ejected from the space between the bay body 21 and the intermediate cylinder 22 and the space between the outer cylinder 21 and the lower head member 31 from the lower section. When the fire is opened, the source valve 7 is closed when the flame is turned off, and the first and second flow rates of the ship are opened by inserting the operation member of the fired Nagano in the = ΐΐίΓ=6υ, 6L' The operating position is operated from the weak fire position to the normalizing position. Once the f-member is in the strong fire position, the opening degree of the second flow regulating valve 8L is gradually increased in the r/, 幵 sand. Further, the supply gas amount supplied to the lower section 4L is as shown in the figure. 5 2, a, as shown in the 'lower crater & prevent the backfire from the required minimum amount to the maximum fQLl position. On the other hand, the first flow regulating valve committed to ίΐίίΪ mosquito position + no valve, over The t-degree is rapidly turned on in the middle position: the operating opening is gradually increased in the position toward the strong fire. In addition, when the weak φ3 is used as the operating member to a strong position, as indicated by the b line in the ® 5, the gas supply to the upper section 4U is not supplied to the upper section, and the supply of the second supply is increased sharply when the intermediate position is exceeded. The upper section of the fire 4U prevents the backfire from taking a small 1 QUmin, and then gradually increases to the maximum amount QUmax. The specific description shows that the total area of the lower section 4L is 163.5 legs 2, the upper section of the fire: u total area is the stone 2, set QLmin to the secret (in the case of the fire mouth, the load is 2.0kCal / h / mm2), QLmax is the following. On the fire port load, V, QUmin is m = Z ^ QUma ^ 3810k side (just In the case of the crater load, when the upper section 4U is also burned, the self-ignition burner 4La ignites the upper section 4U and operates the operating member beyond the intermediate position toward the strong fire position side. Once the intermediate position is exceeded, the supply amount of the upper section 4U is supplied. Although it will increase sharply to QUmin, it will take time to increase the amount of actual gas ejected from the upper section 4U to QUmin. As a result, the operating member reaches a position f from the intermediate position toward the strong fire position, f = 5 before the position shown in c, The actual effluent gas from the upper section of the crater 4U cannot be increased to QUmin in an instant. In addition, the actual effluent from the upper section of the crater 4u 201224368 is more than QUmm. If the igniting crater 4La ignites the upper section 4U, the burning rate is It will exceed the gas discharge speed of 4U from the upper section of the fire and cause backfire. Here, the distance between the upper end of the pilot fire port 4La and the lower end of the upper section 4U is LH, and the size of the upper and lower sides of the pilot burner 4La is Lh. If LH < 1.5Lh, when the operation operating member exceeds the intermediate position to the strong fire position, before reaching the position of c in Fig. 5, that is, before the QUmin from the upper section of the fire port 4U, the ignition of the ignition heart is ignited. The fire in the upper section is against the fire. On the other hand, it has been experimentally confirmed that if LH^15Lh, the actual amount of gas to be ejected from the upper section of the crater 4U is prevented from being ignited by the pilot burner 4La before the quenching of the upper section 4U, and no backfire is generated. And if LH>2 5Lh, it will be too late to ignite the upper section of the fire 4'. For the period during which the 4U is released from the upper section of the fire, the number of ignitions is =1^:’?^1^. On the other hand, the miscellaneous experiment confirms that the right =·,, igniting the upper section of the fire 4U will not be too late, and the resulting ignition sound is not large. Therefore, in order to prevent the generation of fire from the ignition igniting 4La igniting the upper section of the fire 4u, it is necessary to make this post 2.501. In the present embodiment, the portion of the pilot burner 4^, which is a large size in the vertical direction, is set in the lower portion of the lower portion 4l other than the pilot burner 4La = the upper portion of the burner port w is sufficiently lowered. Therefore, it can fully attenuate the firepower of only 4L, please adjust the firepower, and it can be formed under the slanting part 3a under the squatting part 3a. The day will be reduced compared to other parts = the amount of short. However, in the present embodiment, the state is adjacent to each other. Is the side of the circumferential direction of the file 3a formed? The smoldering crater—therefore, the larger fire 23 produced by the spurs is compensated for the alignment of the short claws 3a^, 、, 、, ′, and the uniformity of the heat distribution during the burning and burning of only the following section 4L. The basic configuration of the 3rd, 2nd, and 3rd embodiments shown in the second embodiment of the second embodiment is the same as that of the first embodiment. Symbol 201224368 The difference in the first embodiment of the opening is that the lower portion of the fire σ 4L forms the lower surface of the lower portion 3, the peripheral surface of the lower portion (the outer circumferential surface of the lower annular wall 34) is offset from the first solid direction: self-ignition is formed. The upper end 1^ of the crater 4U is radially outward at "It ^ % ° and between the third embodiment and the different wall 3_3 of the first embodiment and the lower annular wall 34, the lower part of the workpiece 31 is twice." In addition to the 卩%, the first embodiment is large, and the overhanging surface 36 that protrudes outward from the igniting crater 4La and protrudes outward is formed. The second and third embodiments are separated from each other, and by the overhanging surface 36, the flame generated by the ignition burner a can be suppressed from rising. Therefore, even if the distance LH between the upper end of the pilot fire port 4La and the lower end of the upper section fire port 4U is set to be less than 1.5 times the size of the upper and lower f-direction Lh, the ULh can be deducted to prevent the fire from the upper section. The amount of gas that is sprayed out ignites the upper section of rice mouth w before QUmin or more, and produces a backfire when it is ignited. In addition, shortening the LH will increase the upper section of the fire. The upper direction of the 4U is more useful and advantageous. In addition, if the overhanging surface 36 is radially outward with respect to the upper end of the pilot burner 4La, R'R<Lh/3, that is, the flame generated by the pilot burner 4La cannot be suppressed if LH<1.5 is set. Lh, there is a backfire when igniting. And if R > Lh strives to produce a poor ignition of the upper section of the 4U. Therefore, it is preferable to set Lh/3$RgLh, and the second and third embodiments set R to be approximately 、. [Brief Description of the Drawings] Fig. 1 is a cross-sectional view showing a burner for a stove according to a first embodiment of the present invention. Fig. 2 is a perspective view of the burner for a cooker according to the first embodiment. Fig. 3 is a side view showing an important part of the burner for filling the first embodiment. Figure 4 is a cross-sectional view taken along the line IV-IV of Figure 3; Fig. 5 is a graph showing the gas supplied to the lower section and the upper section. Fig. 6 is a cross-sectional view corresponding to Fig. 4 in the second embodiment. Fig. 7 is a sectional view of the burner of the third embodiment corresponding to Fig. 4. 11 201224368 [Explanation of main component symbols] A...cook body B... top plate B1... burner opening C. .. low seat C1... short seat frame C2... short claw C3... protrusion D. .. cladding ring D1... gap
Lh...上下方向尺寸 LH...上下方向距離 QLmax、QUmax...最大量 QLmin、QUmin…最小量 R...隆起量 1.. .爐灶用燃燒器 2.. .燃燒器體 3.. .燃燒器頭 3a...矮座爪對準部分 4La...引燃火口 4L...下段火口 4U...上段火口 5L...第2混合管 5U...第1混合管 6.. .氣體供給路 6L...第2分支路 6U...第1分支路 7.. .源閥 8L...第2流量調節閥 8U...第1流量調節閥 12 201224368 21.. .外側筒體 2 la...裙擺部 22.. .中間筒體 23.. .内侧筒體 31.. .下頭構件 31a、32a...筒部 32a...筒部 32.. .上頭構件 33.. .上環狀壁 34.. .下環狀壁. 35.. .隆起部 36.. .懸伸面Lh...Upper and down direction dimension LH...Upper and down direction distance QLmax, QUmax...Maximum amount QLmin, QUmin...Minimum amount R...Uplift amount 1. Burner for stove 2. Burner body 3 .. . burner head 3a... short claw alignment part 4La... igniting fire mouth 4L... lower section fire mouth 4U... upper section fire mouth 5L... 2nd mixing tube 5U... first mix Tube 6.. Gas supply path 6L... Second branch path 6U... First branch path 7. Source valve 8L... Second flow regulating valve 8U... First flow regulating valve 12 201224368 21. The outer cylinder 2 la... the skirt portion 22.. the intermediate cylinder 23.. the inner cylinder 31.. the lower head member 31a, 32a... the cylinder portion 32a... the cylinder portion 32.. . Upper member 33.. Upper annular wall 34.. Lower annular wall. 35.. . bulge 36.. Overhanging surface