JPH01310217A - Combustion plate - Google Patents
Combustion plateInfo
- Publication number
- JPH01310217A JPH01310217A JP63141999A JP14199988A JPH01310217A JP H01310217 A JPH01310217 A JP H01310217A JP 63141999 A JP63141999 A JP 63141999A JP 14199988 A JP14199988 A JP 14199988A JP H01310217 A JPH01310217 A JP H01310217A
- Authority
- JP
- Japan
- Prior art keywords
- combustion
- flame
- flame holes
- small
- hole
- 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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 90
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000002737 fuel gas Substances 0.000 abstract description 13
- 239000007789 gas Substances 0.000 abstract description 12
- 239000000203 mixture Substances 0.000 abstract description 8
- 239000000567 combustion gas Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000001294 propane Substances 0.000 description 5
- 239000001273 butane Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 4
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001687 destabilization Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 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
- F23D14/12—Radiant burners
- F23D14/14—Radiant burners using screens or perforated plates
- F23D14/145—Radiant burners using screens or perforated plates combustion being stabilised at a screen or a perforated plate
-
- 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
- F23D14/46—Details, e.g. noise reduction means
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/74—Preventing flame lift-off
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/10—Flame diffusing means
- F23D2203/102—Flame diffusing means using perforated plates
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、セラミックなど耐熱板に多数の炎孔を設け、
燃焼機器の火口として使用する高負荷燃焼用プレートに
関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a heat-resistant plate such as a ceramic plate with a large number of flame holes,
This invention relates to a high-load combustion plate used as a tinder for combustion equipment.
［従来の技術］
この種の燃焼プレートは、各炎孔の断面積を一定にする
と、発熱量を広範囲で増減させた場合、燃焼の不安定領
域が生じる。これを解決す゛るため炎孔を大炎孔とそれ
を収り巻く断面積１／２程度の中炎孔とで構成すると、
比較的広い範囲で燃焼の安定と燃焼騒音の低減とが得ら
れることが知られている。[Prior Art] In this type of combustion plate, when the cross-sectional area of each flame hole is made constant, an unstable region of combustion occurs when the calorific value is varied over a wide range. In order to solve this problem, the flame hole is composed of a large flame hole and a medium flame hole with a cross-sectional area of about 1/2 that encloses the large flame hole.
It is known that combustion stability and combustion noise reduction can be achieved over a relatively wide range.
また特公昭５７−４１６４８号公報には、開口面積の異
なる炎孔を不規則に設け、燃焼音の低減を図った燃焼プ
レートをガスバーナに適用した発明が記載されている。Further, Japanese Patent Publication No. 57-41648 describes an invention in which a combustion plate is applied to a gas burner in which flame holes with different opening areas are provided irregularly to reduce combustion noise.
さらに特公昭５０−７１２５号公報には、二種以上の異
径の炎孔を交互に均整に設け、広範囲における発熱量の
変更を可能にするとともに、燃焼の安定性の向上を図っ
たバーナープレートが提案されている。Furthermore, Japanese Patent Publication No. 50-7125 discloses a burner plate that has flame holes of two or more different diameters alternately arranged in a symmetrical manner to make it possible to change the calorific value over a wide range and to improve the stability of combustion. is proposed.
しかるに、この発明者は、燃焼プレートを火口とする全
１次空気燃焼式（全予混合式）の燃焼機器において、プ
ロパン、ブタン１３Ａなど燃焼速度の遅い燃料ガスを高
負荷燃焼させるとき、燃焼気の再循環を生じさせること
が安定した高負荷燃焼の上限を上げるうえで最も有効で
あることを見出だした。However, the inventor discovered that when burning a fuel gas with a slow combustion rate such as propane or butane 13A under high load in a combustion device of all primary air combustion type (all premix type) using a combustion plate as a tinder, the combustion gas It has been found that generating recirculation is the most effective way to raise the upper limit of stable high-load combustion.
この発明の目的は、上記知見に基づき、燃焼速度の遅い
燃料ガスを高負荷燃焼させたときにおいても、ブローオ
フによる吹き消えなど燃焼の不安定力１効に防止でき、
燃焼負荷の増大が可能な燃焼プレートの提供にある。The purpose of the present invention is based on the above-mentioned knowledge, to prevent instability of combustion such as blow-off due to blow-off even when fuel gas with a slow combustion rate is burned under high load.
The object of the present invention is to provide a combustion plate that can increase the combustion load.
［問題点を解決するための手段］
上記目的達成のため、本発明は、所定の形状を有する耐
熱板に、表裏に貫通する多数の炎孔を格子状またはちど
り格子状に設けてなる燃焼プレートにおいて、炎孔の２
つおき以上、４つおき以下に炎孔をめくらとした構成を
採用した。[Means for Solving the Problems] In order to achieve the above object, the present invention provides a combustion plate in which a heat-resistant plate having a predetermined shape is provided with a large number of flame holes penetrating the front and back sides in a lattice shape or a lattice shape. , 2 of the flame hole
We adopted a configuration in which the flame holes are blind at every fourth and every fourth.
し作用及び発明の効果］ 本発明の燃焼プレートは、炎孔を格子状または。Effects and Effects of the Invention] The combustion plate of the present invention has flame holes in a lattice shape or in a lattice shape.
ちどり格子状に設けるとともに、炎孔の２つおき以上、
４つおき以下に炎孔をめくらとしているので、この炎孔
のめくらとなっている部分において燃焼気の再循環が生
じ、燃焼速度の遅い燃料ガスを高負荷燃焼させた時にお
いても、高温の再循環燃焼気による燃料ガスと燃焼用空
気との混合気への着火が持続され、より高い高負荷燃焼
が可能となる。In addition to providing a grid pattern, every second or more of the flame holes,
Every fourth or less flame hole is blind, so recirculation of combustion air occurs in the blind part of the flame hole, and even when fuel gas with a slow combustion rate is burned under high load, high-temperature The ignition of the mixture of fuel gas and combustion air by the recirculated combustion air is sustained, making higher-load combustion possible.
［実施例］
次に本発明を第１図および第２図に示す第１実施例に基
づき説明する。[Example] Next, the present invention will be explained based on a first example shown in FIGS. 1 and 2.
この実施例では、燃焼プレート１は、矩形平面を呈する
セラミック製板１０に、表裏に貫通する多数の炎孔１１
を格子（マトリクス）状に設けている。炎孔１１は、直
径が１．５〜２．０ミリメートルの大炎孔が３．０〜４
．０ミリメートルの間隔で形成してあり、３つおきに炎
孔の存在しないめくら部分１２となっている。In this embodiment, the combustion plate 1 includes a ceramic plate 10 having a rectangular plane, and a large number of flame holes 11 penetrating the front and back sides.
are arranged in a grid (matrix). The flame hole 11 has a diameter of 3.0 to 4 large flame holes with a diameter of 1.5 to 2.0 mm.
．． They are formed at intervals of 0 mm, and every third blind part 12 has no flame holes.
この燃焼プレートは、第２図に示すごとく、全１次空気
燃焼式のガス燃焼機器２の火口として用いられ、火１］
上方に設けられた熱交１１！！器（図示せず）を加熱す
る。燃料ガスとしては、都市ガスである６Ｃ１１３Ａの
他にプロパン、ブタンなどの高発熱量の燃料ガスも使用
される。この場合、高負荷燃焼のため燃焼用空気と燃料
ガスとの混合気の供給量を増加させると、炎孔から噴出
される混合気の流速が火炎伝播速度より大きくなって、
火炎Ｆが吹き上がる、いわゆるブローオフが生じる。As shown in Fig. 2, this combustion plate is used as a vent for a gas combustion device 2 of all primary air combustion type, and the fire 1]
Heat exchanger 11 installed above! ! Heat a container (not shown). As the fuel gas, in addition to 6C113A, which is city gas, fuel gases with high calorific values such as propane and butane are also used. In this case, when the supply amount of the mixture of combustion air and fuel gas is increased due to high-load combustion, the flow velocity of the mixture ejected from the flame hole becomes higher than the flame propagation velocity.
A so-called blow-off occurs in which the flame F blows up.
しかるに、燃焼板のめくら部分１２においては、矢印の
如き燃焼気の再循環が生じるため、この高温の再循環気
によりめくら部分１２の周囲の炎孔から噴出される混合
気は、継続的に着火されて安定した燃焼がなされる。こ
れによりめくら部分１２がない燃焼プレートを用いた燃
焼機器に比較して、より高い高負荷燃焼が達成できる。However, in the blind part 12 of the combustion plate, recirculation of combustion air occurs as shown by the arrow, so the air-fuel mixture ejected from the flame holes around the blind part 12 is continuously ignited by this high-temperature recirculated air. This results in stable combustion. As a result, higher high-load combustion can be achieved compared to a combustion device using a combustion plate without the blind portion 12.
めくら部分１２は、面積の大きさが大きすぎたり、数が
あまり多すぎると、燃焼に寄与しない燃焼プレートの表
面積の割合が多くなり、かえって燃焼負荷は低減する。If the area of the blind portions 12 is too large or the number thereof is too large, the proportion of the surface area of the combustion plate that does not contribute to combustion will increase, and the combustion load will be reduced on the contrary.
また面積が狭すぎたり、数が少なすぎると、上記再循環
が弱かったり、再循。Also, if the area is too small or the number is too small, the above recirculation will be weak or the recirculation will be too small.
環の発生部分が少ないため、ブロー・オフを防１］・す
る効果が弱くなる。よ−って炎孔の２つおき以上、４つ
おき以下に炎孔をめくらとすることが７よしい。Since there are few areas where rings occur, the effect of preventing blow-off is weakened. Therefore, it is best to blind every two or more flame holes and every fourth or less flame holes.
なおめくら部分１２の周囲の炎孔は、直径１゜２〜１．
４ミリメートル程度の中長孔、または直径０．９〜１．
１ミリメートル程度の小炎孔であっても良い。The flame hole around the blind part 12 has a diameter of 1.2 to 1.2 degrees.
A medium long hole of about 4 mm or a diameter of 0.9 to 1.
It may be a small flame hole of about 1 mm.
第３図および第５図は、本発明の第２実施例を示す。3 and 5 show a second embodiment of the invention.
燃焼プレート３は、セラミック製であり、この実施例で
は矩形の平面形状を有する耐熱板３０に、表裏に貫通す
る多数の炎孔を設けて構成されている。耐熱板３０の平
面形状は円形・三角形など用途に応じて所望に選定でき
、また平面以外に球面、凸面、凹面であっても良い。The combustion plate 3 is made of ceramic, and in this embodiment is constructed by providing a heat-resistant plate 30 having a rectangular planar shape with a large number of flame holes penetrating the front and back sides. The planar shape of the heat-resistant plate 30 can be selected as desired depending on the application, such as circular or triangular, and may be spherical, convex, or concave in addition to being flat.
この炎孔は、直径１．９ミリメートルの大炎孔３１、直
径１．３ミリメートルの中長孔３２、および直径１．０
ミリメートルの小炎孔３３の３種類の炎孔からなる。こ
れら３種類の炎孔は、いずれも円形を呈するとともに小
炎孔３３が格子状に配列されている。大炎孔３１ａは、
その中心から距１２．４ミリメートルの円上に等間隔に
位置する４つの小炎孔３３ａ、３３ｂ、３３ｃ、３３ｄ
によってその４方を囲まれ、かつ中心間距離３゜４ミリ
メートルの同心円上に等間隔に位置する４つの中長孔３
２ａ、３２ｂ、３２ｃ、３２ｄによってその中間の４方
を囲まれている。すなわち４つの小炎孔３３ａ、３３ｂ
、３３ｃ、３３ｄはそれぞれ前記４つの中長孔３２ａ、
３２ｂ、３２ｃ、３２ｄの中間に位置するよう配されて
いる。This flame hole includes a large flame hole 31 with a diameter of 1.9 mm, a medium long hole 32 with a diameter of 1.3 mm, and a diameter of 1.0 mm.
It consists of three types of flame holes: small flame holes 33 of millimeter size. These three types of flame holes all have a circular shape, and the small flame holes 33 are arranged in a grid pattern. The large flame hole 31a is
Four small flame holes 33a, 33b, 33c, 33d located at equal intervals on a circle with a distance of 12.4 mm from the center.
Four medium elongated holes 3 located at equal intervals on concentric circles with a center-to-center distance of 3.4 mm
It is surrounded on four sides in the middle by 2a, 32b, 32c, and 32d. That is, four small flame holes 33a, 33b
, 33c, and 33d are the four medium elongated holes 32a, respectively.
It is arranged so as to be located between 32b, 32c, and 32d.
この炎孔の配列において、前記大炎孔３１および該大炎
孔３１を収り囲む４つの小炎孔３３を１つおきにめくら
とし、めくら部分３４を形成している。すなわち小炎孔
３３を格子状に設け、隣り合う４つの小炎孔３３で囲ま
れた正方形の中心に中長孔３２を設けた列と、前記正方
形の中心に大炎孔３１と中長孔３２とを交互に設けた列
とを、交互に配し、大炎孔３１のみ１つおきにめくらと
し、かつその周りの４つの小炎孔３３をめくらと。In this arrangement of flame holes, every other large flame hole 31 and four small flame holes 33 surrounding the large flame hole 31 are blind to form a blind portion 34. That is, there is a row in which small flame holes 33 are provided in a grid pattern, a medium elongated hole 32 is provided in the center of a square surrounded by four adjacent small flame holes 33, and a large flame hole 31 and a medium elongated hole in the center of the square. 32 are arranged alternately, and only every other large flame hole 31 is blind, and the four small flame holes 33 around it are blind.
してめくら部分３４としている。また燃焼プレート３の
周囲および点火装置の装着位置にはサーマルショックを
低減させるためのめくら穴３ａが列設されている。This is a blind portion 34. Further, blind holes 3a are arranged in a row around the combustion plate 3 and at the mounting position of the ignition device to reduce thermal shock.
尚、第４図Ａ、Ｂに示す変形例の如く、耐熱板３０の表
面に大炎孔３１を中心にその周りの４つの小炎孔３３の
全部または半分を含む円錐状、球状、円柱状などの凹部
３５を設けると、特に燃焼速度の遅いプロパン、１３Ａ
などの燃料ガスの保炎に有効であり（特に低負荷燃焼で
空気過剰率が高い時）、また、高負荷燃焼時の燃焼騒音
の低下も図れる。In addition, as in the modification shown in FIGS. 4A and 4B, the surface of the heat-resistant plate 30 has a conical, spherical, or cylindrical shape that includes all or half of the four small flame holes 33 around the large flame hole 31. If the recess 35 is provided, especially for propane with a slow burning speed, 13A
It is effective for flame stabilization of fuel gases such as (especially when the excess air ratio is high during low-load combustion), and can also reduce combustion noise during high-load combustion.
第５図は燃焼プレ・−ト３を用いたガス湯沸器４を示す
、燃焼プレート３は長手方向に２枚が並列して取り付け
られており、ブロワ４１により強制送風された空気と燃
料のガスとがプレート３の上流の混合室４２で混合され
、プレ・−ト３の１流側の燃焼室４３で着火、燃焼する
。燃焼による発熱は主に水管４４とフィン４５からなる
熱交換器により吸熱され、水管４４内の流水に伝熱され
る。FIG. 5 shows a gas water heater 4 using combustion plates 3. Two combustion plates 3 are installed in parallel in the longitudinal direction, and air and fuel forcedly blown by a blower 41 are mixed. The gases are mixed in a mixing chamber 42 upstream of the plate 3, and ignited and combusted in a combustion chamber 43 on the first flow side of the plate 3. The heat generated by combustion is mainly absorbed by a heat exchanger consisting of water pipes 44 and fins 45, and is transferred to the flowing water in water pipes 44.
この火口において、発熱量は５．０ＯＯｋｃａｌ／ｈｒ
から４５、０ＯＯｋｃａ ｌ／ｈｒまで変更できるよう
に設定されており、発熱量に応じて供給されるガスおよ
び空気の量が調整される。この場合において、低発熱量
領域（３０，０ＯＯｋｃａｌ／ｈｒ以上）においては小
炎孔３３により大炎孔３１の炎が安定し、さらに同様に
中長孔３２も安定化され火炎群全体の安定化が実現され
る。また高発熱量領域（５，０ＯＯｋｃａｌ／ｈｒ〜１
０，０００ｋＣａｌ／ｈｒ ）においては、主に中長孔
３２と大炎孔３１の火炎が支配的な火炎群となり安定化
する。At this crater, the calorific value is 5.0OOkcal/hr
It is set so that it can be changed from 45,000 kcal/hr to 45,000 kcal/hr, and the amount of gas and air supplied is adjusted according to the calorific value. In this case, in the low calorific value region (30,0OOkcal/hr or more), the flame in the large flame hole 31 is stabilized by the small flame hole 33, and the medium elongated hole 32 is also stabilized in the same way, thereby stabilizing the entire flame group. is realized. Also, high calorific value region (5,0OOkcal/hr ~ 1
0,000 kCal/hr), the flames mainly in the medium elongated hole 32 and the large flame hole 31 become a dominant flame group and are stabilized.
この場合、大・中・小の各炎孔の断面面積比は４：２：
１種度が最も望ましい。In this case, the cross-sectional area ratio of each large, medium, and small flame hole is 4:2:
Grade 1 is most desirable.
このガス湯沸器４では、高負荷燃焼時の大炎孔３１の保
炎性を増すために保炎用炎孔として小炎孔３３を小ピッ
チで設けるようにすれば低負荷燃焼時の火炎群の安定化
が計れる。このとき高負荷燃焼時には大炎孔３１と中長
孔３２が火炎群で支配的となり、高負荷燃焼時の火炎群
の安定化を損なうことはない、従ってこのように３種の
炎孔径を上記パターンで構成すれば極め°Ｃ広い燃焼負
荷。In this gas water heater 4, in order to increase the flame stability of the large flame holes 31 during high-load combustion, if the small flame holes 33 are provided at a small pitch as flame-holding flame holes, the flame during low-load combustion Group stabilization can be measured. At this time, during high-load combustion, the large flame hole 31 and the medium long hole 32 become dominant in the flame group, and the stability of the flame group during high-load combustion is not impaired. If configured in a pattern, the combustion load will be extremely wide in °C.
範囲での安定な燃焼が確保でき、燃焼異常の原因となる
炎孔群の不安定化も防止できる。Stable combustion can be ensured within the range, and destabilization of the flame hole group, which can cause abnormal combustion, can also be prevented.
すなわち大炎孔は、低負荷燃焼時に炎の安定性が良い小
炎孔により４方を囲まれ、中負荷燃焼時に炎の安定性が
良い中炎孔により４方を囲まれ、高負荷燃焼時は本質的
に炎の安定性が良いため広範囲の発熱量の変化領域にお
いて炎の安定性が良い。In other words, the large flame hole is surrounded on four sides by small flame holes that provide good flame stability during low load combustion, is surrounded on four sides by medium flame holes that provide good flame stability during medium load combustion, and is surrounded on four sides by medium flame holes that provide good flame stability during high load combustion. Since the flame stability is essentially good, the flame stability is good over a wide range of changes in calorific value.
さらにプロパン、ブタン１３Ａなどの燃焼速度の遅い燃
料ガスを用いた場合、高負荷燃焼時には炎孔からの空気
と燃料ガスとの混合気の噴出速度が火炎伝播速度より大
きくなり、ブローオフが生じやすいが、大炎孔およびそ
のまわりの小炎孔をめくらとした無炎ゾーンがあり、こ
の無炎ゾーンが炎の再循環領域を形成して火炎の保持を
行うため安定燃焼ができる。Furthermore, when using a fuel gas with a slow combustion speed such as propane or butane 13A, the jetting speed of the mixture of air and fuel gas from the flame hole becomes higher than the flame propagation speed during high-load combustion, which tends to cause blow-off. There is a flameless zone, which is made up of a large flame hole and the small flame holes around it, and this flameless zone forms a flame recirculation area and maintains the flame, allowing stable combustion.
第６図は、本発明の第３実施例を示す。FIG. 6 shows a third embodiment of the invention.
この実施例では燃焼プレート５は、耐熱板５０に、直径
１．０ミリメートルの小炎孔５３を３゜４ミリメ一川〜
ル間隔でマＦ・リクス状に設け、４つの小炎孔５３で囲
まれた正方形面の中心に、直径１．５ミリメートルの大
炎孔５１を設けた列と、大炎孔５１と直径１．３ミリメ
ートルの中炎孔５２とを交互に設けた列とを、縦横とも
交互に配列し、大炎孔５１のみ縦横の行、列の交差する
位置にある大炎孔５１のうち、１つおきにめくらとして
めくら部分５４を形成している５゜
この配列により、都市ガスである６Ｃ１１３Ａの他にプ
ロパン、ブタンなどの高発熱量の燃料ガスも極めて高い
高負荷燃焼が可能とな−）た。なおこの実施例において
、中炎孔５２の代わりに小炎孔５３を設け、大炎孔５１
の直径を１．６ミリメードルとしても同様の効果が得ら
れる。In this embodiment, the combustion plate 5 has a small flame hole 53 with a diameter of 1.0 mm in a heat-resistant plate 50, with a diameter of 3 to 4 mm.
A row of large flame holes 51 with a diameter of 1.5 mm is provided at the center of a square surface surrounded by four small flame holes 53, and a row of large flame holes 51 with a diameter of 1. . Rows of medium flame holes 52 of 3 mm are arranged alternately both vertically and horizontally, and only one large flame hole 51 is located at the intersection of the vertical and horizontal rows and columns. This arrangement, which forms a blind part 54 at every turn, enables extremely high-load combustion of fuel gases with high calorific values such as propane and butane in addition to city gas 6C113A. . In this embodiment, a small flame hole 53 is provided instead of the medium flame hole 52, and a large flame hole 51 is provided.
A similar effect can be obtained by setting the diameter to 1.6 millimeters.
第１図は本発明の第１実施例を示す燃焼プレートの平面
図、第２図は該燃焼プレートを火ｌコとして用いた全１
次空気燃焼式のガス燃焼機器の要部の断面図、第３図は
本発明の第２実施例を示す燃焼プレー・トの平面図、第
４図Ａは変形例を示す部拡大図、ＢはそのＣ−Ｃ断面図
、第５図は該燃。
焼プレートを火口として用いた全１次空気燃焼式のガス
湯沸器の機略の断面図、第６図は本発明の第３実施例を
示す燃焼プレートの平面図を示す。
図中１．３．５・・・燃焼プレート ２−全１次空気燃
焼式のガス燃焼機器 ４・・ガス湯沸器 １１・・・炎
孔 １２．３４．５４・・・めくら部分 ３１．５１・
大炎孔 ３２．５２・・・中炎孔 ３３．５３・・・小
炎孔
代理人 弁理士 石 黒 健 三
筒１図
４７． ・・′FIG. 1 is a plan view of a combustion plate showing a first embodiment of the present invention, and FIG.
Figure 3 is a plan view of a combustion plate showing a second embodiment of the present invention; Figure 4A is an enlarged view of a modified example; is a sectional view taken along the line C-C, and FIG. 5 shows the combustion. FIG. 6 is a schematic sectional view of a fully primary air combustion type gas water heater using a combustion plate as a nozzle, and FIG. 6 is a plan view of a combustion plate showing a third embodiment of the present invention. In the figure 1.3.5... Combustion plate 2- All primary air combustion type gas combustion equipment 4... Gas water heater 11... Flame hole 12.34.54... Blind part 31.51・
Large flame hole 32.52...Medium flame hole 33.53...Small flame hole Representative Patent attorney Ken Ishiguro Three tubes 1 Figure 47.・・′
Claims (1)
の炎孔を格子状またはちどり格子状に設けてなる燃焼プ
レートにおいて、 炎孔の２つおき以上、４つおき以下に炎孔をめくらとし
たことを特徴とする燃焼プレート。 ２）所定の形状を有する耐熱板に、表裏に貫通する多数
の大炎孔と小炎孔、または大炎孔と中炎孔と小炎孔を、
それぞれ所定のパターンで格子状またはちどり格子状に
設けた燃焼プレートにおいて、大炎孔のみを大炎孔の２
つおき以上、４つおき以下にめくらとしたことを特徴と
する燃焼プレート。 ３）所定の形状を有する耐熱板に、大中小の３種の断面
面積を有し、表裏に貫通する多数の炎孔を設けた燃焼プ
レートにおいて、 小炎孔を格子状に配し、大炎孔は該小炎孔の中心に位置
し、且つ前記小炎孔の各々は隣り合う２つの前記中炎孔
の中間に設定してなるパターンを帯状に列設した第１パ
ターン帯と、 該第１パターン帯を、大炎孔において半ピッチずらして
前記パターンを帯状に列設するとともに一つおきに大炎
孔およびそのまわりの小炎孔をめくらとした第２パター
ン帯と を交互に配列した燃焼プレート。 ４）所定の形状を有する耐熱板に、大中小の３種の断面
面積を有し、表裏に貫通する多数の炎孔を設けてなる燃
焼プレートにおいて、 小炎孔を格子状に設け、隣り合う４つの小炎孔で囲まれ
た正方形の中心に大炎孔を設けた列と、前記正方形の中
心に大炎孔と中炎孔とを交互に設けた列と を縦横共に交互に配し、 大炎孔のみ縦列と横列とが交差する位置にある大炎孔を
１つ置きにめくらとしたことを特徴とする燃焼プレート
。[Scope of Claims] 1) A combustion plate in which a heat-resistant plate having a predetermined shape is provided with a large number of flame holes penetrating the front and back in a lattice shape or a zigzag lattice shape, including every second or more flame holes, or every four flame holes. A combustion plate characterized by blind flame holes below the arbor. 2) A large number of large flame holes and small flame holes, or a large flame hole, a medium flame hole, and a small flame hole, penetrating the front and back sides of a heat-resistant plate having a predetermined shape,
In each combustion plate, which is provided in a lattice shape or a chidori lattice shape in a predetermined pattern, only the large flame holes are connected to two of the large flame holes.
A combustion plate characterized by having blinds at every third or more and every fourth or less. 3) In the combustion plate, which is a heat-resistant plate with a predetermined shape and has three types of cross-sectional areas, large, medium and small, and has many flame holes penetrating the front and back, the small flame holes are arranged in a lattice pattern to create a large flame. a first pattern band in which the hole is located at the center of the small flame hole, and each of the small flame holes is set in the middle of two adjacent medium flame holes arranged in a band shape; One pattern band was shifted by half a pitch in the large flame hole, and the patterns were arranged in a band shape, and a second pattern band in which the large flame hole and the small flame holes around it were blind were arranged alternately every other pattern. combustion plate. 4) In a combustion plate made of a heat-resistant plate with a predetermined shape and a large number of flame holes that penetrate through the front and back sides and have three types of cross-sectional areas: large, medium, and small, small flame holes are provided in a lattice pattern and adjacent to each other. A row in which a large flame hole is provided in the center of a square surrounded by four small flame holes, and a row in which a large flame hole and a medium flame hole are alternately provided in the center of the square are arranged alternately in both vertical and horizontal directions, A combustion plate characterized in that every other large flame hole is blind at a position where a vertical row and a horizontal row intersect.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63141999A JPH01310217A (en) | 1988-06-09 | 1988-06-09 | Combustion plate |
| KR1019890007903A KR920001755B1 (en) | 1988-06-09 | 1989-06-08 | Combustion plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63141999A JPH01310217A (en) | 1988-06-09 | 1988-06-09 | Combustion plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01310217A true JPH01310217A (en) | 1989-12-14 |
| JPH0445726B2 JPH0445726B2 (en) | 1992-07-27 |
Family
ID=15305034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63141999A Granted JPH01310217A (en) | 1988-06-09 | 1988-06-09 | Combustion plate |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH01310217A (en) |
| KR (1) | KR920001755B1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995023315A1 (en) * | 1994-02-23 | 1995-08-31 | Stichting Energieonderzoek Centrum Nederland | Method and apparatus for burning highly reactive gaseous fuel |
| US5447427A (en) * | 1991-09-24 | 1995-09-05 | Kabushiki Kaisha Kobe Seiko Sho | Burner and method for burning low calorific gas |
| US5471972A (en) * | 1993-11-10 | 1995-12-05 | Gas Research Institute | Self-cleaning gas-fueled oven for cooking |
| EP0794384A3 (en) * | 1996-02-08 | 1999-02-03 | DVGW Deutscher Verein des Gas- und Wasserfaches -Technisch-wissenschaftliche Vereinigung- | Small combustion device for domestic use |
| EP0949453A2 (en) * | 1998-04-08 | 1999-10-13 | Rinnai Kabushiki Kaisha | Burner plate |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11788722B2 (en) | 2020-02-24 | 2023-10-17 | The Regents Of The University Of California | Flame stabilizer for natural draft lean premixed burner apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52156426A (en) * | 1976-05-21 | 1977-12-26 | Scientific Energy Systems | Combustion device |
| JPS5525773A (en) * | 1978-08-14 | 1980-02-23 | Matsushita Electric Ind Co Ltd | Infrared radiant burner |
-
1988
- 1988-06-09 JP JP63141999A patent/JPH01310217A/en active Granted
-
1989
- 1989-06-08 KR KR1019890007903A patent/KR920001755B1/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52156426A (en) * | 1976-05-21 | 1977-12-26 | Scientific Energy Systems | Combustion device |
| JPS5525773A (en) * | 1978-08-14 | 1980-02-23 | Matsushita Electric Ind Co Ltd | Infrared radiant burner |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5447427A (en) * | 1991-09-24 | 1995-09-05 | Kabushiki Kaisha Kobe Seiko Sho | Burner and method for burning low calorific gas |
| US5471972A (en) * | 1993-11-10 | 1995-12-05 | Gas Research Institute | Self-cleaning gas-fueled oven for cooking |
| WO1995023315A1 (en) * | 1994-02-23 | 1995-08-31 | Stichting Energieonderzoek Centrum Nederland | Method and apparatus for burning highly reactive gaseous fuel |
| NL9400280A (en) * | 1994-02-23 | 1995-10-02 | Stichting Energie | Process for the combustion of highly reactive gaseous air / fuel mixtures and burner equipment for carrying out this process. |
| EP0794384A3 (en) * | 1996-02-08 | 1999-02-03 | DVGW Deutscher Verein des Gas- und Wasserfaches -Technisch-wissenschaftliche Vereinigung- | Small combustion device for domestic use |
| EP0949453A2 (en) * | 1998-04-08 | 1999-10-13 | Rinnai Kabushiki Kaisha | Burner plate |
| EP0949453A3 (en) * | 1998-04-08 | 2000-02-23 | Rinnai Kabushiki Kaisha | Burner plate |
Also Published As
| Publication number | Publication date |
|---|---|
| KR900000650A (en) | 1990-01-31 |
| KR920001755B1 (en) | 1992-02-24 |
| JPH0445726B2 (en) | 1992-07-27 |
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