593927593927
本發明係關於一種燃氣機。 本發明主要預計供工業用爐。 …瑞典專利說明書98()()473_2號說明_種方法及_種燃燒 為，用於清潔自一Μ氣機或自某種其他燃燒源 燃燒器發出之廢氣。 微/由 、'有益為藉助燃氣機使工業用爐加熱。正常所使用之燃 料，通常為天然瓦斯，不過可使用其他氣體，諸如丙烷’，’、、 丁捉及液化石油氣體或瓶裝氣體。 種有效率燃氣機之實例為一種燃燒器，類型為在其中 燃燒器頭置於一内導管之一端，並且在其中内導管被一在 裝 其底部封閉之外保護導管所包圍。來自燃燒室之燃燒氣體 在内導f内下傳至外導管之底部，其在此轉至在外導管與 =導f之間流回，並進入一通至周圍之廢氣通道。保護導 f藉對流（對應於3 0%)及藉輻射（對應於7〇%)將熱傳遞至焯 空間。 π 線 一種相似類型之燃燒器，也包含一内導管及一包圍内導 管之外保護導管，不過保護導管之底部在此情形不封閉了 保護導管予以彎曲，例如成一種&形構形，並且保護導管 I自由端予以連接至一廢氣通道。配備有燃燒器頭之内導 管為平直，並因此位於保護導管之平直區段内。 苴於使外導管保持在溫度最多，以便藉 以增強燃燒器之功率濃度。此可藉自一種高溫材料，諸如 碳化矽（SiC)或ΑΡΜ製成外導管而達成。ΑρΜ為Advanced Powder Metallurgy(先進粉末冶金術）之縮窝，並且所關 -4- 本紙張尺度適用中國國家標準(CNS) A4規格（2i〇x297&gf 593927The invention relates to a gas engine. The present invention is mainly intended for industrial furnaces. … Swedish Patent Specification No. 98 () () 473_2 describes _ methods and _ combustion methods for cleaning exhaust gas emitted from a gas turbine or some other combustion source burner. Micro / Yu, 'Benefit is the use of gas engines to heat industrial furnaces. Normally, the fuel used is natural gas, but other gases such as propane ', ', butane, and liquefied petroleum gas or bottled gas may be used. An example of such an efficient gas engine is a burner of the type in which the burner head is placed at one end of an inner duct, and in which the inner duct is surrounded by a protective duct which is closed outside its bottom. Combustion gas from the combustion chamber is transmitted down to the bottom of the outer duct within the inner guide f, where it turns to flow back between the outer duct and the guide f and enters an exhaust gas passage leading to the surroundings. The protection guide f transfers heat to the space by convection (corresponding to 30%) and radiation (corresponding to 70%). A similar type of burner of the π line also includes an inner duct and a protective duct surrounding the outer duct, but the bottom of the protective duct in this case does not close the protective duct and bend it, for example, into an & configuration, and The free end of the protective duct I is connected to an exhaust gas passage. The inner guide tube equipped with the burner head is straight and is therefore located in the straight section of the protective tube. It is necessary to keep the outer pipe at the maximum temperature in order to increase the power concentration of the burner. This can be achieved by making the outer catheter from a high temperature material such as silicon carbide (SiC) or APM. ΑρΜ is the shrinkage of Advanced Powder Metallurgy (Advanced Powder Metallurgy), and related -4- This paper size applies to China National Standard (CNS) A4 specifications (2i〇297 & gf 593927
粉末材料予以擠 切之材料約含73%Fe，22%Cr&5%A1 壓成為一種管狀形式。 -項問題為在火焰離開燃燒器頭並與内導管接觸時，便 形成-邵纟’在此部纟’㈣於内導管預計操作之溫度， 内導管之溫度會變為太高。 本發明解決此項問題。 本發明因此係關於一種爐加熱燃氣機，其性質為在其中 燃燒器頭1位於-被-外保護導管包圍之内導管之—端，並 且其中提供-包圍燃燒器頭之内導管之第_部份，以及其 中在内導管第一部份之延伸部份提供一單獨之内導管，該 單獨之内導管座設成與内導管之第_份轴向成—直線，並 在其開口端開始，並且其中燃燒器之特徵為内導管第一部 份之出口有一内徑，其係小於在面向單獨之内導管之該内 導管第一部份之末端處，導管之其餘部份。 現將部伤參照其在附圖中所例示之例證性實施例，更詳 細說明本發明，在附圖中： 圖1例示一根據本發明所構成之燃燒器。 圖1例示一供加熱爐之燃氣機。該類型燃氣機之為在其中 燃燒器頭1係位於一被一外保護導管3所包圍之内導管2之 响。外保濩導f 3之底部4係成封閉狀。因此，來自燃燒 杂頭1(廢氣將會在内導管2内下傳至外保護導管3之底部 4，然後如箭頭所示轉至在外保護導管3與内導管2之間流 回，並且其後流入至一通至周圍之廢氣通道5。 圖1示一包圍燃燒器頭之内導管2之第一部份21，並且也 ____ -5· 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐)The powdered material is about 73% Fe and 22% Cr & 5% A1 pressed into a tubular form. -The problem is that when the flame leaves the burner head and comes into contact with the inner tube, it will form-Shao 纟 'in this part 纟' at the temperature at which the inner tube is expected to operate, and the temperature of the inner tube will become too high. The present invention solves this problem. The invention therefore relates to a furnace-heated gas engine, which is characterized in that the burner head 1 is located at the end of an inner duct surrounded by an outer protection duct, and in which the inner duct provided with the inner duct surrounding the burner head is provided. Part, and the extension of the first part of the inner catheter, provides a separate inner catheter, the separate inner catheter seat is arranged in a straight line with the first axial portion of the inner catheter, and starts at its open end And the burner is characterized in that the outlet of the first part of the inner duct has an inner diameter which is smaller than the rest of the duct at the end of the first part of the inner duct facing the separate inner duct. Partial injuries will now be described in more detail with reference to the exemplified embodiments thereof illustrated in the drawings, in which: Fig. 1 illustrates a burner constructed in accordance with the present invention. Fig. 1 illustrates a gas engine for a heating furnace. This type of gas engine is in which the burner head 1 is located in an inner duct 2 surrounded by an outer protective duct 3. The bottom 4 of the outer guide f 3 is closed. Therefore, from the combustion head 1 (exhaust gas will be transmitted from the inner duct 2 to the bottom 4 of the outer protection duct 3, and then turned back as shown by the arrow to flow back between the outer protection duct 3 and the inner duct 2, and thereafter It flows into an exhaust passage 5 leading to the surrounding. Figure 1 shows the first part 21 of the inner duct 2 surrounding the burner head, and also ____ -5. This paper size applies to China National Standard (CNS) A4 specifications (210X297 (Mm)
顯示-位料導管2之延伸部份之單獨内導管8 導管2之第-部份21絲向成—直線，並在内導 i獨"T道"^份以開口端開始。内導管2之第—部份21及 =獨内W此彼此轴向成—直線。單獨内導管8在内導 & 2 <弟一部份2 1之開口端開始。 本發明不限於任何特定燃氣機，或限於任何其他類型之 燃燒器’而且也可同樣已參照上述類型之燃燒器予以說 明:其也有一被一外保護導管包圍之内導管，但其中保護 導管之底部不封閉，而且其中保護導管予以彎曲，並且該 導f自由端予以連接至一廢氣通道。 將氣態燃料進給至一進口6，並將燃燒之空氣進給至一進 口 7。 根據本發明，内導管之第一部份之出口有一内徑小於在 面向單獨導管之末端之管其餘部份。 在圖1實施例，内導管2之第一部份2 1在其下端變窄。逐 漸縮減部份9導致氣體之速度向口 10增加。這復表示自口 10發出之火焰11將會比其它在使用典型全圓柱形第一導管 者更長。較長之火焰復表示由火焰所加熱直接之單獨内導 管之内表面積，亦即火焰所接觸之表面積，將會遠大於在 習知燃燒器之情形。 吾人意外發現，儘管火焰與在習知燃燒器之情形產生一 樣多熱，、以及儘管單獨内導管8自兩侧加熱，火焰之此種加 大消除上述問題。 根據本發明之一種較佳實施例，口 1 〇之較小内徑為導管 -6 - 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 593927 A7 ' B7 五、發明説明（4 ) 其餘部份之内徑之1 0 %至5 0 % ° 根據另一較佳實施例，内導管2之第一部份21之口 10基本 上位於單獨内導管8之近端開口 12。 雖然以上業已說明某些實施例，但請予暸解，逐漸縮減 可具有一種錐形或某種其他形狀。 因此請予瞭解，本發明將不視為限於上述例證性實施 例，而是在後附申請專利範圍之範圍内，可作成種種變 化° 元件參考符號說明： 1 燃燒器頭 2 内導管 3 外保護導管 4 外保護導管之底部 5 廢氣通道 6 氣態燃料進口 7 燃燒空氣進口 8 單獨之内導管 9 逐漸縮減部份 10 内導管之口 11 火焰 12 單獨内導管之近端開口 内導管之第一部份 21A separate inner tube 8 showing the extended part of the material tube 2 and the-part 21 of the tube 2 are aligned in a straight line, and the inner tube starts with the open end. The first-part 21 of the inner tube 2 and the inner part are axially aligned with each other-straight. The separate inner catheter 8 starts at the open end of the inner guide & 2 < part 2 1. The invention is not limited to any particular gas engine or to any other type of burner 'and can also be explained with reference to the burner of the above type: it also has an inner duct surrounded by an outer protective duct, but the protective duct The bottom is not closed, and the protective duct is bent, and the free end of the guide is connected to an exhaust gas passage. Gaseous fuel is fed to an inlet 6 and combustion air is fed to an inlet 7. According to the invention, the outlet of the first part of the inner tube has an inner diameter smaller than the rest of the tube at the end facing the individual tube. In the embodiment of Fig. 1, the first portion 21 of the inner catheter 2 is narrowed at its lower end. Gradually reducing the portion 9 causes the velocity of the gas to increase toward the port 10. This means that the flame 11 emitted from the mouth 10 will be longer than others using a typical full cylindrical first conduit. The longer flame indicates that the internal surface area of the separate inner tube directly heated by the flame, that is, the surface area contacted by the flame, will be much larger than in the case of conventional burners. I have unexpectedly discovered that this increase in flame eliminates the above problems despite the fact that the flame generates as much heat as in the case of the conventional burner, and despite the separate inner duct 8 heating from both sides. According to a preferred embodiment of the present invention, the smaller inner diameter of the port 10 is a catheter-6-this paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 593927 A7 'B7 V. Description of the invention (4) 10% to 50% of the inner diameter of the remaining portion ° According to another preferred embodiment, the mouth 10 of the first portion 21 of the inner catheter 2 is located substantially at the proximal opening 12 of the separate inner catheter 8 . Although certain embodiments have been described above, it is understood that the tapering may have a tapered shape or some other shape. So please understand that the present invention will not be considered to be limited to the above-mentioned exemplified embodiments, but can be made various changes within the scope of the appended patent application ° Description of reference symbols for components: 1 Burner head 2 Inner duct 3 Outer protection Duct 4 Bottom of outer protective duct 5 Exhaust duct 6 Gaseous fuel inlet 7 Combustion air inlet 8 Separate inner duct 9 Taper part 10 Inner duct mouth 11 Flame 12 Proximity opening of separate inner duct First part of inner duct twenty one