1257993 九、發明說明： 【發明所屬气技術領域】 技術領域 本t月係有關於用以形成朝上的火焰之爐具用燃燒 5 器。 L先^前老】 背景技術 過去已知故種爐具用燃燒器在爐頭上面以放射狀形 成有夕數縫隙狀焰孔(例如，參照專利文獻〇。於此，爐具 10用燃燒讀常是在爐頭外周設置焰孔，但，如此一來，火 I 4 g調理谷底面靠近外侧的部分，而使熱效率變 _——.. 士如 ’若在爐頭上面如上所述形成縫隙狀焰孔， 貝以成於縫隙狀焰孔之朝上的火焰會碰到調理容器底面的 中央^刀’而提高熱效率。又，由於藉由賴狀焰孔可形 15成在爐頭之直梭方向上連續的火焰，因此，直徑方向的熱 分布會變好。 仁形成為放射狀之縫隙狀焰孔之間的間隔在爐頭之 直I方向内侧會變窄，當縫隙狀焰孔的數量過多時，直徑 #向内側中之縫隙狀焰孔之間的間隔會過窄，而因火焰相 20互干擾或二次空氣不足造成燃燒性不 良，因此，會限制缝 隙狀焰孔的數量，而在縫隙狀焰孔之間產生愈往直徑方向 外侧愈寬的死空間。結果，圓周方向的熱分布會變差。 【專利文獻1】日本專利公開公報第2-146407號（第3 圖、第4圖） 1257993 t發明内容j 發明之揭示 發明欲解決之問題 、有蓉於上述問題點，本發明之目的在於提供藉由併用 5縫隙狀焰孔與圓孔狀焰孔來解決縫隙狀焰孔的缺點，即， 解决圓周方向熱分布不良的問題之爐具用燃燒器。 解決問題之手段 為了解決上述問題，本發明之爐具用燃燒器係用以形 成朝上的火焰，且於爐頭上面以放射狀形成有多數縫隙狀 10焰孔者，其特徵在於：於前述爐頭上面，在形成前述縫隙 狀孔之各放射狀領域之間的部分形成有沿著前述各放射 狀領域之側邊且到達前述爐頭之外周的凹溝，以殘留以前 述爐頭之直控方向外側為底邊並以直徑方向内側為頂點之 大致一角开/的口 ，並且，在該台部形成有多數圓孔狀焰 15 孔。 本毛月的基本想法是在形成縫隙狀焰孔之放射狀領域 之間本來成為死空間的部分設置圓孔狀焰孔，使圓周方向 的”、、刀布更好。於此，若在形成縫隙狀焰孔之各放射狀領 域之間的部分單純設置圓孔狀焰孔，則會因二次空氣不足 20仏成不良。相對於此，本發明在以凹溝與形成缝隙 狀孔之放射狀領域相隔離之台部形成有圓孔狀焰孔，因 此可伙爐頭外側透過凹溝將二次空氣供給至縫隙狀焰孔 與圓孔狀焰孔，而可提高燃燒性。 另也曰考慮在形成縫隙狀焰孔之各放射狀領域之間 1257993 的4刀开y成短的縫隙狀焰孔，但，如此一來，將無法有效 地活用形成縫隙狀焰孔之各放射狀領域之間的空間。另一 方面本發明將台部形成為配合形成縫隙狀焰孔之各放射 狀領域之間的部分的形狀之三角形，且在該台部形成圓孔 5狀焰孔，因此，可確保焰孔的總開口面積，所以是非常合 理的。 又，有時溢出湯汁會流落至爐頭上，此時，溢出湯汁 可沿著凹溝朝爐頭外側排出。於此，若先將凹溝形成為朝 爐頭之直徑方向外側向下傾斜，則溢出湯汁可順利地排 1〇出，而可有效地防止溢出湯汁殘留且牢牢地黏在凹溝上的 情況發生。 但，形成於縫隙狀焰孔的火焰會以與調理容器的底面 接觸且朝圓周方向擴散之狀態流動，因此，有可能與形成 於圓孔狀焰孔的火焰接近，而發生火焰相互干擾的情況。 15此時，若台部上面形成為朝爐頭之直徑方向外側向下傾斜 之^員斜面，且圓孔狀焰孔沿著該傾斜面之法線方向形成， 則可以具有從圓孔狀焰孔朝爐頭之直徑方向外側之運動成 分的狀態噴出混合氣體，且形成於圓孔狀焰孔的火焰會朝 直徑方向外侧傾斜，而不易發生與形成於縫隙狀焰孔的火 2〇焰相互干擾的情況。再者，若形成縫隙狀焰孔之各放射狀 領域的上面也形成為朝爐頭之直徑方向外側向下傾斜之傾 斜面，則調理容器的底面與縫隙狀焰孔之間的間隔會朝直 徑方向外側愈來愈大，因此，形成於縫隙狀焰孔的火焰容 易與調理容器的底面接觸且朝直徑方向外側流動。結果， 1257993 可抑制形成於縫隙狀焰孔的火焰在與調理容器的底面接觸 時朝圓周方向擴散的情況發生，且可更有效地防止形成於 縫隙狀焰孔的火焰與形成於圓孔狀焰孔的火焰相互干擾。 又’由於將台部上面設為傾斜面，故流落至台部的溢出湯 汁會很快地從台部流下，而可有效地防止溢出湯汁堵住圓 孔狀焰孔的狀況發生。 【實施方式】 實施發明之最佳形態1257993 IX. Description of the invention: [Technical field of gas to be invented] Technical field This month is related to the combustion of a stove for forming an upward flame. In the past, it has been known that a burner for a furnace is formed with a plurality of slit-shaped flame holes radially on the burner head (for example, refer to the patent document 〇. Here, the stove 10 is read by combustion. It is common to place a flame hole on the outer circumference of the burner, but, as a result, the fire I 4 g regulates the bottom portion of the valley near the outer portion, and the thermal efficiency is changed _-.., such as if the gap is formed on the burner head as described above. The flame hole, the flame that faces the slit-shaped flame hole will hit the central knife of the bottom surface of the conditioning container to improve the thermal efficiency. Moreover, since the flame hole can be shaped into 15 by the burner The continuous flame in the direction of the shuttle, therefore, the heat distribution in the diameter direction becomes better. The interval between the slit-shaped flame holes formed by the radial direction is narrowed in the direction of the straight I direction of the burner, when the slit-shaped flame hole When the number is too large, the interval between the slit-shaped flame holes in the inner diameter of the diameter # is too narrow, and the combustion phase is poor due to the mutual interference of the flame phase 20 or the secondary air is insufficient, so that the number of the slit-shaped flame holes is limited. And the diametrical direction is generated between the slit-shaped flame holes As a result, the heat distribution in the circumferential direction is deteriorated. [Patent Document 1] Japanese Patent Laid-Open Publication No. 2-146407 (Fig. 3, Fig. 4) 1257993 t Summary of Invention j Disclosure of Invention The problem to be solved is that the above problem is solved. The object of the present invention is to provide a disadvantage of solving the slit-shaped flame hole by using a slit-shaped flame hole and a circular-hole flame hole in combination, that is, solving the problem of poor heat distribution in the circumferential direction. In order to solve the above problems, the burner for a stove of the present invention is used to form an upward flame, and a plurality of slit-like 10 flame holes are radially formed on the burner head. The upper surface of the burner head is formed with a groove along a side of each of the radial regions and reaching an outer circumference of the burner head at a portion between the radial regions forming the slit-shaped hole. A hole that is opened at a substantially outer corner with the outer side of the burner in the direction of the direct control and the inner side of the diametrical direction as a vertex is left, and a hole of a plurality of circular holes 15 is formed in the land portion. The basic idea is to provide a circular hole-shaped flame hole in a portion which is a dead space between the radial fields forming the slit-shaped flame hole, so that the circumferential direction ", the knife cloth is better. Here, if a slit flame is formed When a circular hole-shaped flame hole is simply provided in a portion between the radial regions of the hole, the secondary air is less than 20%. In contrast, the present invention is in the radial field in which the groove and the slit-shaped hole are formed. Since the partition portion is formed with a circular hole-shaped flame hole, the outer side of the burner can be supplied with the secondary air through the groove to the slit-shaped flame hole and the circular hole-shaped flame hole, thereby improving the combustibility. In the radial field of the slit-shaped flame hole, there is a 4 slit opening of 1257993 to form a short slit-like flame hole, but in this way, the space between the radial fields forming the slit-shaped flame hole cannot be effectively utilized. On the other hand, in the present invention, the land portion is formed in a triangular shape that matches the shape of a portion between the respective radial regions forming the slit-shaped flame holes, and a circular hole-shaped flame hole is formed in the land portion, thereby ensuring the flame hole. The total opening area, so is Often reasonable. Also, sometimes the overflowing soup will flow to the burner, and at this time, the overflowing soup can be discharged along the groove toward the outside of the burner. Here, if the groove is formed to be inclined downward toward the outer side in the diameter direction of the burner, the overflowing soup can be smoothly discharged, and the overflow of the soup can be effectively prevented and firmly adhered to the groove. The situation happened. However, the flame formed in the slit-shaped flame hole flows in contact with the bottom surface of the conditioning container and diffuses in the circumferential direction. Therefore, there is a possibility that the flame formed in the circular hole-shaped flame hole is close to each other, and the flame interferes with each other. . At this time, if the upper surface of the table portion is formed as a slope of the member which is inclined downward toward the outer side in the diameter direction of the burner head, and the circular hole-shaped flame hole is formed along the normal direction of the inclined surface, it may have a circular flame shape The hole ejects the mixed gas in a state of the moving component on the outer side in the diameter direction of the burner, and the flame formed in the circular hole-shaped flame hole is inclined outward in the radial direction, and is less likely to interfere with the flame formed in the slit-shaped flame hole. Happening. Further, if the upper surface of each of the radial regions forming the slit-shaped flame holes is formed as an inclined surface which is inclined downward toward the outer side in the diameter direction of the burner, the interval between the bottom surface of the conditioning container and the slit-shaped flame hole will be toward the diameter Since the outer side of the direction becomes larger and larger, the flame formed in the slit-shaped flame hole easily comes into contact with the bottom surface of the conditioning container and flows outward in the radial direction. As a result, 1257993 can prevent the flame formed in the slit-shaped flame hole from diffusing in the circumferential direction when it comes into contact with the bottom surface of the conditioning container, and can more effectively prevent the flame formed in the slit-shaped flame hole from being formed in the circular-hole flame. The flames of the holes interfere with each other. Further, since the upper surface of the table portion is an inclined surface, the overflow soup flowing to the table portion quickly flows down from the table portion, and the overflowing of the soup body to block the circular hole-shaped flame hole can be effectively prevented. [Embodiment] The best form of implementing the invention
參知第1圖及第2圖，1表示爐具用燃燒器之燃燒器本 10體。燃燒器本體1由盤狀之外側構件滅筒狀之内側構件化 形成為向上開口之環狀。透過與燃燒器本體1連設之混合管 2將燃料乳體與-次空氣之混合氣體供給至燃燒器本體i。 另，雖然燃燒器本體靖混合管2為板金製，但亦可以禱造 品一體地形成燃燒器本體丨與混合管2。 15Referring to Figures 1 and 2, reference numeral 1 denotes a burner body 10 for a burner for a stove. The burner body 1 is formed into an annular shape that is open upward by a disk-shaped outer side member. The mixed gas of the fuel emulsion and the secondary air is supplied to the burner body i through the mixing pipe 2 connected to the burner body 1. Further, although the burner body mixing pipe 2 is made of sheet metal, the burner body 丨 and the mixing pipe 2 can be integrally formed by the praying product. 15
從上方覆域燒器本則之環狀的義3係可脫離 接地載置於職器本體1上。爐頭3為鑄造品，且包含固6 於燃燒器本體1之外側構件h上緣之外周的固定部4及内私 於燃燒器本體i之内側構件lb之内周的筒部5。另 入 雖未圖 的環狀湯汁承接盤係以放入愤 3下側之狀態配置於爐具之頂板。 凰碩 示，内徑較墟頭3之外彳曼小 " 乐*㈣王弟j圃所示以放射狀形成 數缝隙狀焰孔6。詳而士 。之，在爐頭3上面於圓周方向 等間隔設定8個放射狀領 Π 員或7,且在各放射狀領域7 方式形成2個縫隙狀焰^ 孔6。另，雖然亦可在各放射狀^ 20 1257993 形成較寬的1個縫隙狀焰孔，但若増加縫隙狀焰孔的寬度， 會容易逆火，因此，本實施形態中，將形狀各放射狀領 域7之_狀焰孔6的數量設成2個，且縮小各_狀焰孔6 的寬度。 5 又，於爐頭3上面，在各放射狀領域7、7之間的部分形From the top, the ring-shaped genre 3 of the field burner can be detached from the grounding device and placed on the body 1. The burner 3 is a cast product, and includes a fixing portion 4 that is fixed to the outer periphery of the outer edge of the outer member h of the burner body 1, and a cylindrical portion 5 that is private to the inner periphery of the inner member lb of the burner body i. In addition, the annular soup receiving tray, which is not shown, is placed on the top of the stove in the state of being placed under the anger 3 side. Huang Shuo showed that the inner diameter is smaller than the head of the head of the head of the 彳man small " Le * (four) Wang Di j圃 as shown in the radial formation of a number of slit-like flame holes 6. Details. Further, eight radial collar members or seven are disposed at equal intervals in the circumferential direction on the burner head 3, and two slit-shaped flame holes 6 are formed in each of the radial regions. In addition, although a wide slit-shaped flame hole may be formed in each radial shape, if the width of the slit-shaped flame hole is increased, the backfire may be easily reversed. Therefore, in the present embodiment, the shapes are radial. The number of the _-shaped flame holes 6 of the field 7 is set to two, and the width of each of the _-shaped flame holes 6 is reduced. 5 Further, on the top of the burner 3, the partial shape between the radial fields 7 and 7
成有沿著各放射狀領域7之側邊的凹溝9，以殘留以爐頭3之 直徑方向外側為底邊並以直徑方向内側為頂點之大致三角 形的台部8。凹溝9會到達爐頭3的外周，但不會到達爐頭3 的内周’且藉由形成於爐頭3的㈣附近之_方向的溝部 9a連通圓周方向其中一側之凹溝9與另—側之凹溝9。並 且，藉由溝部9a之直徑方向内側之溝壁％，可防止流落至 台部8的溢出湯汁滴到爐頭3的内周空間。又，在爐頭3之外 周側形成有跨越兩凹溝9、9之未滿部如，台部8之直徑方向 外側的邊(底邊)在該部分相對於爐頭3的外周朝内側:卜 15另’當然亦可省略未滿部9c，使台部8到達爐頭9之外周。 又，亦可將凹溝9形成為可到達爐頭9之内周。 在台部8形成有多數圓孔狀焰孔1()。藉此，可將形成縫 隙狀焰孔6之纽射狀領域7、7之間原來成為無用空間的部 分有效地活用成圓孔狀焰孔1〇的配置空間，以利用形成於 2〇圓孔狀焰孔10的火財加熱未被形成於縫隙狀焰孔6的火 焰加熱之調理容器的底面部分，使圓周方向之献分布更 好。又，由财以凹溝9與形成縫隙狀焰孔6之放射狀領域7 相隔離之台部8形成有圓孔狀培孔1〇，因此，可從爐頭 侧透過凹溝9將二次空氣充分地供給至缝隙狀焰孔績圓孔 1257993 狀焰孔ίο，而不會有燃燒性不良的問題。本實施形熊中， 雖然也從爐頭3之内周空間供給二次空氣，但若爐頭3之内 周有上述溝壁％，則來自爐頭3之内周空間的二次空氣將不 易供給至形成於台部8之圓孔狀焰孔1〇。因此，透過凹溝9 $ 之一久工氣的供給在確保圓孔狀焰孔1 〇之燃燒性上很重 要。 另，本實施形態中，沿著台部8的形狀之三角形的2個 斜邊形成2列圓孔狀焰孔10。藉此，可從爐碩3外側沿著台 部8上面將二次空氣供給至2列的圓孔狀焰孔1〇、ι〇，故可 1〇 更提高燃燒性。 又’有時會產生來自調理容器的溢出湯汁，且溢出湯 汁流落至爐頭3上，此時，溢出湯汁可沿著凹溝9朝爐頭3外 侧排出。於此，本實施形態中，由第2圖可知，凹溝形成為 朝爐頭3之直控方向外侧向下傾斜。因此，溢出湯汁可順利 15地排出，而可有效地防止溢出湯汁殘留且牢牢地黏在凹溝9 上的情況發生。 但，形成於縫隙狀焰孔6的火焰以與調理容器的底面接 觸且朝圓周方向擴散之狀態流動，因此，有可能與形成於 圓孔狀焰孔10的火焰接近，而發生火焰相互干擾的情況。 20以下，針對已考量該問題點的第2實施形態參照第4圖作說 明0 第2實施形態與上述第1實施形態的基本構造是相同 的，與第1實施形態相同的構件、部分則賦予與上述相同的 符號。第2實施形態與第！實施形態的不同點在於第1實施形 1257993 悲中，形成縫隙狀焰孔6之放射狀領域7的上面與台侧上 面同樣形成為水平面，相對於此，第2實施形態中，形成縫 隙狀焰孔6之放射狀領域7的上面與台部㈣上面形成為朝 爐収直徑方向外侧向下傾斜之傾斜面，且圓孔狀焰 沿著台部8之傾斜面的法線方向形成。 10 15 20 藉此，可以具有從圓孔狀焰孔10朝爐頭3之直徑方向外 側之運域分的狀態噴歧合氣體，且形狀圓孔狀焰孔 10的火焰會朝直徑方向外側傾斜。結果，形成於圓孔狀焰 孔_火焰之上部的位置會朝直徑方向外側偏移，因此， =形成於縫隙狀焰孔6的火焰之間的圓周方向間隔會變 兄另#面，即使將形成縫隙狀焰孔6之放射狀領域7形 成為傾斜面，也無法以具有從圓孔狀焰孔10朝爐頭3之直徑 方向外侧之運動成分的狀態噴出混合氣體，但由於放射狀 項域的倾斜會使調理谷器的底面與縫隙狀焰孔6之間的間 隔朝直梭方向外側愈來愈大，因此，形成於縫隙狀焰孔6的 火焰容易與調理容器的底面接觸且朝直徑方向外側流動。 結果，可抑制形成於縫隙狀焰孔6的火焰在與調理容器的底 面接觸時朝圓周方向擴散的情況發生，且形成於圓孔狀焰 孔的火心的位置可朝直控方向外側偏移，隨之可有效地 防止^/成於縫隙狀焰孔6的火焰與形成於圓孔狀焰孔1 〇的 火焰相互干擾。 又右台部8的上面如第1實施形態所述為水平面，則 當溢出湯汁流落至台部8時，溢出湯汁會因為表面張力而滯 留於台部8上面，且溢出湯汁會進入圓孔狀焰孔10而發生堵 ⑧ 11 1257993 住該圓孔狀焰孔10的狀況。相對於此，若如第2實施形態所 述先將台部8上面形成為傾斜面，則流落至台部8的溢出湯 汁會很快地從台部8流下，而可有效地防止溢出湯汁堵住圓 孔狀焰孔10的狀況發生。 5 以上雖已針對將本發明適用在將爐頭3形成為環狀且 亦可從爐頭3之内周空間供給二次空氣之燃燒器之實施形 態作說明’但就使用閉塞内周空間之圓盤狀的爐頭之燃燒 器而言同樣可適用本發明。 【圖式簡單說明】 10 第1圖係本發明之燃燒器之第1實施形態的平面圖。 第2圖係在第丨圖之Η — π線截斷之截面圖。 第3圖係第1實施形態之爐頭的透視圖。 第4圖係本發明之燃燒器的第2實施形態之與第2圖相 對應的截面圖。 15【圖式之主要元件代表符號表】 1...燃燒器本體 7...放射狀領域 la...外側構件 8…台部 lb…内侧構件 9···凹溝 2...混合管 9a···溝部 3...爐頭 9b…溝壁 4…固定部 9c···未滿部 5...筒部 10···圓孔狀焰孔 6...縫隙狀焰孔 12 ⑧The groove 9 along the side of each of the radial regions 7 is formed, and a substantially triangular-shaped land portion 8 having a bottom side in the diameter direction of the burner head 3 and an inner side in the radial direction is left. The groove 9 reaches the outer circumference of the burner 3, but does not reach the inner circumference ' of the burner head 3, and communicates with the groove 9a formed in the direction of the vicinity of the (4) of the burner 3 to the groove 9 on one side in the circumferential direction. The other side of the groove 9. Further, by the % of the groove wall on the inner side in the diameter direction of the groove portion 9a, it is possible to prevent the overflowing soup flowing down to the table portion 8 from dripping into the inner circumferential space of the burner head 3. Further, on the outer peripheral side of the burner head 3, a portion that spans the two recessed grooves 9, 9 is formed. For example, the side (the bottom side) in the radial direction of the table portion 8 is directed toward the inner side with respect to the outer periphery of the burner head 3: Further, of course, the uncompleted portion 9c may be omitted, and the table portion 8 may be reached to the outer periphery of the burner head 9. Further, the groove 9 may be formed to reach the inner circumference of the burner head 9. A plurality of circular hole-shaped flame holes 1 () are formed in the table portion 8. With this configuration, the portion of the blank-shaped regions 7 and 7 forming the slit-like flame hole 6 that is originally used as a dead space can be effectively utilized as an arrangement space of the circular-hole-shaped flame hole 1〇, and can be formed in a circular hole of 2 turns. The fire-fed heating of the flame hole 10 is not formed in the bottom surface portion of the flame-heated conditioning container of the slit-shaped flame hole 6, so that the distribution in the circumferential direction is better. Further, since the groove portion 9 is formed by the groove portion 9 which is separated from the radial region 7 in which the slit-shaped flame hole 6 is formed, the hole 9 can be passed through the groove 9 from the burner side. The air is sufficiently supplied to the slit-shaped flame hole diameter hole 1579993-like flame hole ίο without the problem of poor combustion. In the present embodiment, although the secondary air is supplied from the inner circumferential space of the burner 3, if the inner wall of the burner 3 has the above-mentioned groove wall %, the secondary air from the inner circumferential space of the burner 3 will be difficult. It is supplied to the circular hole-shaped flame hole 1〇 formed in the stage part 8. Therefore, the supply of a long working gas through one of the grooves 9 $ is important in securing the combustibility of the circular hole-shaped flame hole 1 . Further, in the present embodiment, two rows of circular hole-shaped flame holes 10 are formed along the two oblique sides of the triangle of the shape of the land portion 8. Thereby, the secondary air can be supplied to the two rows of the circular hole-shaped flame holes 1〇 and ι from the outer side of the furnace 3 along the upper surface of the table 8, so that the combustibility can be further improved. Further, the overflowing soup from the conditioning container is sometimes generated, and the overflowing soup is poured onto the burner 3. At this time, the overflowing soup can be discharged along the groove 9 toward the outside of the burner 3. Here, in the present embodiment, as is understood from Fig. 2, the groove is formed to be inclined downward toward the outside in the direction of the direct control of the burner head 3. Therefore, the overflowing of the broth can be smoothly discharged, and the overflowing of the broth can be effectively prevented and firmly adhered to the groove 9. However, the flame formed in the slit-shaped flame hole 6 flows in contact with the bottom surface of the conditioning container and diffuses in the circumferential direction. Therefore, it is possible to approach the flame formed in the circular-shaped flame hole 10, and the flames interfere with each other. Happening. In the second embodiment, the second embodiment has been described with reference to the fourth embodiment. The second embodiment is the same as the basic structure of the first embodiment, and the same members and portions as those of the first embodiment are assigned. The same symbols as above. The second embodiment and the first! The second embodiment is different in the first embodiment, and the upper surface of the radial region 7 in which the slit-shaped flame hole 6 is formed is formed into a horizontal plane in the same manner as the upper surface of the mesa. In contrast, in the second embodiment, the slit-shaped flame is formed. The upper surface of the radial region 7 of the hole 6 and the upper surface of the table portion (four) are formed as inclined surfaces that are inclined downward toward the outer side in the diameter direction of the furnace, and the circular hole-shaped flame is formed along the normal direction of the inclined surface of the table portion 8. 10 15 20 Thereby, it is possible to have a state in which the gas is dispersed from the circular hole-shaped flame hole 10 toward the outer side in the diameter direction of the burner head 3, and the flame of the circular hole-shaped flame hole 10 is inclined outward in the radial direction. . As a result, the position formed on the upper portion of the circular hole-shaped flame hole _ flame is shifted outward in the diameter direction, and therefore, the circumferential interval between the flames formed in the slit-shaped flame hole 6 becomes a different one, even if The radial region 7 in which the slit-shaped flame hole 6 is formed is formed as an inclined surface, and the mixed gas is not discharged in a state having a moving component from the circular-hole-shaped flame hole 10 toward the outer side in the diameter direction of the burner head 3, but due to the radial domain The inclination causes the interval between the bottom surface of the conditioning barn and the slit-shaped flame hole 6 to become larger toward the outside of the straight shuttle direction, and therefore, the flame formed in the slit-shaped flame hole 6 is easily in contact with the bottom surface of the conditioning container and facing the diameter Flowing outward on the direction. As a result, it is possible to prevent the flame formed in the slit-shaped flame hole 6 from diffusing in the circumferential direction when it comes into contact with the bottom surface of the conditioning container, and the position of the center of the fire formed in the circular hole-shaped flame hole can be shifted outward in the direct control direction. Then, it is possible to effectively prevent the flame formed in the slit-shaped flame hole 6 from interfering with the flame formed in the circular-shaped flame hole 1 。. Further, when the upper surface of the right side portion 8 is a horizontal surface as described in the first embodiment, when the overflowing soup falls to the table portion 8, the overflowing soup will stay on the table portion 8 due to the surface tension, and the overflowing soup will enter. The circular hole-shaped flame hole 10 is in a state in which the plug 8 11 1257993 is placed in the circular hole-shaped flame hole 10. On the other hand, when the upper surface of the table portion 8 is formed as an inclined surface as described in the second embodiment, the overflowing soup flowing down to the table portion 8 can quickly flow down from the table portion 8, and the soup can be effectively prevented from overflowing. The situation in which the juice blocks the circular hole-shaped flame hole 10 occurs. 5 Although the present invention has been applied to the embodiment in which the burner 3 is formed in a ring shape and the secondary air can be supplied from the inner space of the burner 3, the description will be made, but the closed inner space is used. The present invention is equally applicable to a burner of a disk-shaped burner. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a plan view showing a first embodiment of a burner according to the present invention. Figure 2 is a cross-sectional view of the π-line truncation at the top of the figure. Fig. 3 is a perspective view of the burner of the first embodiment. Fig. 4 is a cross-sectional view corresponding to Fig. 2 of the second embodiment of the burner of the present invention. 15 [Main component representative symbol table of the drawing] 1... burner body 7... radial field la... outer member 8... table portion lb... inner member 9···groove 2...mix Tube 9a···groove part 3...furnace head 9b...ditch wall 4...fixed part 9c···underfilled part 5...tubular part 10···circular hole-shaped flame hole 6... slit-shaped flame hole 12 8