WO2011153820A1 - 一种金属包烘烤烧嘴 - Google Patents

一种金属包烘烤烧嘴 Download PDF

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Publication number
WO2011153820A1
WO2011153820A1 PCT/CN2011/000951 CN2011000951W WO2011153820A1 WO 2011153820 A1 WO2011153820 A1 WO 2011153820A1 CN 2011000951 W CN2011000951 W CN 2011000951W WO 2011153820 A1 WO2011153820 A1 WO 2011153820A1
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WIPO (PCT)
Prior art keywords
gas
metal
radiator
nozzle
burner according
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PCT/CN2011/000951
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English (en)
French (fr)
Inventor
于树金
刘文丰
边仁杰
Original Assignee
河北文丰钢铁有限公司
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Priority claimed from CN2010202243931U external-priority patent/CN201702359U/zh
Priority claimed from CN2010101991605A external-priority patent/CN101862824B/zh
Application filed by 河北文丰钢铁有限公司 filed Critical 河北文丰钢铁有限公司
Publication of WO2011153820A1 publication Critical patent/WO2011153820A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/005—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like with heating or cooling means
    • B22D41/01—Heating means
    • B22D41/015—Heating means with external heating, i.e. the heat source not being a part of the ladle

Definitions

  • the present invention relates to a device for baking a metal bag (for example, a ladle, a ladle, a copper bag or an aluminum bag, etc.), and more particularly to a metal bag roasting burner.
  • a metal bag for example, a ladle, a ladle, a copper bag or an aluminum bag, etc.
  • the invention aims to solve the above problems, and provides a baking burner which can extend into the heat exchange inside the metal bag, so that most of the heat generated by the combustion of the gas can be fully utilized, thereby saving energy and reducing baking.
  • the metal bag may be a ladle, an iron bag, a copper bag or an aluminum bag or the like.
  • the size of the metal package (space X time X temperature) is related to the heat of combustion and the flow rate of the thermal energy carrier.
  • the heat utilization rate of the metal package is related to the area of the lining, the flame temperature, and the temperature difference between the inner and outer surfaces of the metal package;
  • the value obtained by the inner surface (m 2 ) X temperature difference ( ) of the metal liner is proportional to the heat absorbed by the metal liner. Therefore, the space temperature is constant, and increasing the heat absorption area is equivalent to increasing the heat absorption amount, that is, increasing the heat energy utilization rate.
  • the present invention is directed to a metal package baking burner comprising: at least one distribution member disposed on a metal bag; a radiator disposed inside the metal package and having an upward open end; At least one gas-assisting gas nozzle in fluid communication with the dispensing member, extending downwardly from an end of the dispensing member through a bottom portion of the radiator and bonded at a bottom thereof, the combustion gas thereby leading to the metal
  • the interior of the bag preferably leading to the junction of the bottom and the body (also referred to as the "wall"); and at least one gas nozzle disposed adjacent to the at least one gas-fired nozzle, passing through the The bottom of the radiator is combined with it at the bottom, and the combustion thus leads to the interior of the metal package, preferably to the junction of the bottom and the body, in combination with the combustion gas.
  • a protective layer is disposed outside of the radiator.
  • the protective layer may be, for example, a ceramic fiber layer containing alumina (A 1203 ), a ceramic fiber layer containing zirconia ( ⁇ 2 ), a ceramic fiber layer containing zirconia and alumina, or other suitable for thermal shock resistance or quenching heat
  • the protective layer formed by the material.
  • the metal-clad baking burner further includes a structural tube disposed in fluid communication with the at least one gas nozzle.
  • the metal-clad baking burner further includes a hollow support body on which at least one air vent communicating with the atmosphere is disposed.
  • the support is provided as a component consisting of two or more spaced apart petals, which may be a pusher, a cylinder or the like.
  • an electromagnetic valve and an exhaust pipe in communication with the electromagnetic valve are further provided at the support.
  • the metal-clad baking burner further comprises a metal cover spaced from the open end of the radiator, the spacing i being, for example, from 10 mm to 35 mm, preferably 10 mm. Up to 20 mm, and the at least one combustion gas nozzle and the at least one gas nozzle pass through the center of the metal cover.
  • the metal-clad baking burner is further provided with a shroud disposed adjacent to the at least one gas-assisting nozzle and having an open end extending downwardly toward the radiator internal.
  • the dispensing member is delivered through a combustion aid
  • the gas pipe is in communication with the pressure assisting gas source, and the at least one gas nozzle is in communication with the pressurized gas source through a gas pipe, wherein the injection amount of the at least one gas nozzle matches the injection amount of the at least one gas pipe
  • the direction of the spray is directed towards the inside of the metal package, preferably towards the intersection of the bottom of the package and the body.
  • the gas-assisted gas supply pipe is connected to a gas-fired water sealing pipe, and the gas pipe is connected to a gas water sealing pipe, wherein the gas water sealing pipe and the gas-fired water sealing pipe Insert one into the water tank.
  • a pressure assisting gas source tube extends into the water tank and is sealingly secured to the water tank, and is configured to extend into the combustion gas water sealing tube and to enter the combustion gas water sealing tube. Watertight connection. Further preferably, a pressurized gas source tube extends into the water tank and is sealingly secured to the water tank and is configured to extend into the gas water sealing tube and is sealingly coupled to the active water entering the gas water sealing tube.
  • FIG. 1 is a schematic view of a metal-clad baking burner according to a first preferred embodiment of the present invention
  • FIG. 2 is a schematic view of a metal-clad baking burner according to a second preferred embodiment of the present invention
  • FIG. 3 is an embodiment of the present invention. Schematic diagram of the connection of the baking burner to the gas gas pipeline and the gas pipeline;
  • Figure 4 is an exemplary schematic view of a petal in a vented support used in the metal packet baking burner of the present invention
  • FIG. 5 is a schematic illustration of a metal packet baking burner in accordance with one embodiment of the present invention. detailed description
  • the metal package baking burner comprises: a dispensing member 2 disposed on the metal package 1; a radiator 8 disposed inside the metal package 1 and having an upwardly open end, which is preferably ⁇ -shaped a radiator; at least one gas-assisting nozzle 4 in fluid communication with the distribution member 2, extending downwardly from the end of the distribution member 2 through the radiator 8 and joined at the bottom, assisting gas Thereby leading to the interior of the metal package 1, preferably to the bottom and the bag a junction of the body; and at least one gas nozzle 5 disposed adjacent to the at least one gas-assisting gas nozzle 4, passing through the radiator 8 and being joined at the bottom thereof, the combustion gas thereby leading to the metal
  • the interior of the bag 1, preferably extends to the intersection of the bottom of the bag and the body.
  • a protective layer 18 (see FIG. 5 ) is disposed on the periphery of the radiator 8 to avoid damage to the radiator 8 in a high-temperature conversion environment (20 to 1050 ⁇ ) in practical applications, and the protective layer 18 may be, for example,
  • the ceramic fiber layer of alumina (A1203), the ceramic fiber layer containing zirconium oxide (Zr0 2 ) or the ceramic fiber layer containing zirconia and alumina may also be made of other materials suitable for thermal shock resistance or quenching and rapid heat resistance.
  • Protective layer is disposed on the periphery of the radiator 8 to avoid damage to the radiator 8 in a high-temperature conversion environment (20 to 1050 ⁇ ) in practical applications, and the protective layer 18 may be, for example,
  • the radiator 8 is capable of absorbing the heat of the combustion of the gas, and leaving the heat in the form of heat radiation in the metal package, and because the volume can occupy the space of the metal package, the space in the baking process of the metal package is reduced. This achieves the goal of energy saving.
  • the metal-clad baking burner further includes a structural tube 6 (see Figs. 1 and 2) disposed in fluid communication with the at least one gas nozzle 5.
  • the structure tube 6 functions similarly to the radiator 8, since its volume can occupy the space of the radiator 8, so that the internal space of the radiator 8 is reduced, and at the same time, the heat exchange area is increased, thereby making it possible to carry out more heat. Applications.
  • the metal package baking burner further comprises a hollow support body 3, and at least one air hole 20 communicating with the atmosphere is disposed on the support body 3, as shown in Fig. 4.
  • the metal package baking burner further comprises: a metal cover 7 spaced apart from the open end of the radiator 8, the separation distance being adjustable from 10 to 35 mm, preferably from 10 to 20 mm; At least one of the combustion gas nozzles 4 and the at least one gas nozzle 5 are passed through the center of the metal cover 7.
  • the combustion gas enters the gas-steam nozzle 4 through the distribution member 2, and the gas enters the gas nozzle 5 via the structural tube 6, so that the gas and the combustion gas are mixed inside the metal package after being emitted from the gas-assisting nozzle 4 and the gas nozzle 5.
  • the flame is directed to the area that is the most difficult to roast around the bottom of the metal bag, and the other areas are baked by the temperature of the tail of the fire and the reflection temperature of the heat radiation of the radiator 8, which causes the flame heat of the metal package to be ordered in an orderly manner. It can be more effectively absorbed and utilized by the metal bag.
  • the radiator 8 occupies a certain space inside the metal bag, the space to be heated inside the metal bag is correspondingly reduced, according to the thermodynamic principle, it can be proportionally Achieve energy saving goals. then, The burned airflow passes through the gap between the radiator 8 and the metal cover 7 into the radiator 8, and rises from the bottom of the radiator 8 in the opposite direction to the flow in the combustion gas nozzle 4 and the gas nozzle 5 to support The air holes 20 provided in the body 3 are discharged.
  • the metal-clad baking burner is further provided with a guiding body 14 (see FIG. 2), the shroud 14 is disposed adjacent to the at least one gas-assisting nozzle 4 and the open end extends downwardly to face the radiation The inside of the body 8.
  • the ladle baking burner further includes a shroud 14 extending downward from the end of the metal cover 7, the open end of which is arranged to extend toward the The interior of the radiator 8 is spaced apart therefrom.
  • the pilot 14 allows the post-combustion airflow to first enter the gap between the radiator 8 and the shroud 14 prior to discharge, and the airflow is diverted through the shroud 14 to the bottom of the radiator 8 to avoid overheating.
  • the airflow damages the gas-assisting nozzle 4 and the gas nozzle 5, and then the airflow rises from the bottom of the radiator 8 to the air hole 20 on the support body 3, and the airflow during the ascending process can be combined with the gas-assisting nozzle 4 and the gas jet
  • the tube 5 exchanges heat, thereby increasing the temperature of the combustion gas and the gas, and enhancing the combustion effect.
  • the support 3 is preferably provided as an assembly of two or more spaced apart petals, which may be a pusher, a cylinder or the like.
  • a petal body of a support body (pushing body) 3 is shown, at least one of which is disposed on the petal body.
  • the dispensing member 2 is annular in the preferred embodiment of the invention (shown in Figures 1 and 2), but may be other suitable shapes.
  • the shroud 14 is a push tube in this embodiment, but may be other suitable shapes; the radiator 8 may also be cylindrical, tapered or other suitable shape.
  • a metal packet baking burner in accordance with another embodiment of the present invention is illustrated.
  • the metal-clad baking burner shown in Figure 5 has no structural tube 6, i.e., the radiator 8 passes through a plurality of combustion-assisting nozzles 4 and The combination of the plurality of gas nozzles 5 at their bottoms can also be firmly located inside the metal package 1, wherein both the combustion gas nozzles 4 and the gas nozzles 5 pass through the distribution member 2 (two are exemplarily shown in Fig. 5)
  • a distribution unit 2) to distribute the combustion gas and the gas separately.
  • an electromagnetic valve 17 and an exhaust pipe 21 communicating with the electromagnetic valve 17 are further provided at the support body 3.
  • the metal package baking burner performs a slow cooling process, which is intended to prevent the combustion gas nozzle 4 and the gas nozzle 5 from being damaged in a high temperature environment.
  • the electromagnetic valve 17 is automatically opened after losing power; then, the high-temperature hot air flow enters the interior of the radiator 8 from the gap between the metal cover 7 and the radiator 8, due to the high temperature
  • the hot gas flow is lighter than the low temperature gas stream in the radiator 8, so that the high temperature hot gas flow rises to the electromagnetic valve 17 and is further discharged by the exhaust pipe 21 to further increase the lift.
  • the inside of the shroud 14 is a low-speed, low-temperature descending airflow, and continuously sucks in new cold air to cool the combustion-supporting nozzle 4 and the gas nozzle 5, thereby protecting the gas-assisting nozzle 4 and the gas nozzle 5 from Damaged, it can maintain a certain physical strength and is stably suspended from the radiator 8.
  • Fig. 3 there is shown a schematic view of a connection of a baking burner to a gas supply pipe and a combustion gas pipe according to an embodiment of the present invention.
  • the dispensing member 2 is in communication with a source of pressurized combustion gas through a gas-assisted gas delivery pipe 9, and the structural tube 6 is in communication with a source of pressurized gas through a gas conduit 10, wherein the amount of injection of the gas nozzle 5 is The injection amount of the assist gas nozzle 4 is matched and the injection direction is directed to the inside of the metal bag, preferably at the intersection of the bottom and the body.
  • the combustion-supporting gas delivery pipe 9 is preferably connected to the combustion-supporting water-sealing pipe 11 via a metal hose, and similarly, the gas-fired pipe 10 is preferably passed through a metal hose and gas water.
  • the sealing tube 15 is connected, wherein the combustion gas water sealing tube 11 and the gas water sealing tube 15 are both inserted into the water tank 12.
  • a pressure assisting gas source pipe 13 also extends into the interior of the water tank, for example from the bottom of the water tank 12, and is sealingly secured to the water tank, which is arranged to extend into the gas-fired water-sealing pipe 11 and enter The active water seal connection of the gas-fired water seal tube 11.
  • a pressurized gas source tube 16 also extends into the interior of the tank, for example from the bottom of the tank 12, and is sealingly secured to the tank, which is configured to extend into the gas seal tube 15 and into the gas water.
  • orientations of the upper, lower, inner, and the like, as used herein, are for the general working position of the metallurgical package, and are merely illustrative of the invention and are not intended to limit the invention in any way.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion Of Fluid Fuel (AREA)

Description

一种金属包烘烤烧嘴 技术领域
本发明涉及一种用于烘烤金属包（例如， 钢包、 铁包、 铜包或铝包 等） 的装置， 具体而言， 涉及一种金属包烘烤烧嘴。 背景技术
目前， 已知的金属包（例如， 钢包、 铁包、 铜包或铝包等）烘烤方 法大体采用传统的烘烤模式。 以钢包为例， 在这种传统烘烤模式中， 每 个钢包需专用一个火源从常温被烘烤到高温（约 10501C )。 例如， 100t 钢包的烘烤需要约 50小时， 每小时燃烧 290m3热值为 5800KJ/m3燃气， 其中包衬材料约 15吨，衬材比热为 0. 87KJ /kg， 则热能利用率 = { (衬 材热容量） X (包内衬内表面温度 +包壳温度） ÷ 2 } ÷ (燃烧热值 X燃 气消耗量 /小时 X烘烤总时间） x l 00%， 也即： { ( 0. 87KJ /kg X 15000 ]¾ ) ( 1050Χ 150Χ ) ÷ 2 } ÷ ( 5800KJ/m3 χ 290m3 /小时 χ 48小时） χ 100%=9. 69%。 可以看出， 大约有 90%的热量（即， 大约 7266万 KJ的 热能）没有被充分地利用， 增加成本且浪费了大量的能源， 还有 6吨二 氧化碳（C02 )排放量。
因此， 极需设计一种新颖金属包烘烤烧嘴。 发明内容
本发明旨在解决上述问题，提供一种可伸入金属包内部换热的烘烤 烧嘴， 使得燃气能够充分地进行燃烧同时产生的大部分热量得以利用， 既节约了能源又降低了烘烤金属包成本。所述金属包可以是钢包、铁包、 铜包或铝包等。
申请人发现， 金属包（空间 X时间 X温度）的大小与燃烧热量及热 能栽体的流量有关， 金属包烘烤热能利用率与包衬的面积、 火焰温度、 金属包内外表面温差有关； 金属包空间温度一定时， 金属包衬内表面 ( m2 ) X温差（ )得到的数值与金属包衬吸收热量成正比例关系。 由 此， 空间温度不变， 加大吸热面积相当于增加吸热量， 也就是等于提高 了热能利用率。 具体地， 本发明旨在提供一种金属包烘烤烧嘴， 包括： 至少一个分 配部件， 其设置在金属包之上； 一个辐射体， 其设置在金属包的内部并 具有向上的开口端；至少一个助燃气喷管，其与所述分配部件流体连通， 从所述分配部件的端部向下延伸穿过所述辐射体的底部并与之在底部 处结合， 助燃气由此通向金属包的内部， 优选地通向包底和包身（也称 为 "包壁" ）的交汇处； 以及至少一个燃气喷管， 其与所述至少一个助 燃气喷管相邻布置， 穿过所述辐射体的底部并与之在底部处结合， 燃由 此通向金属包的内部，优选地通向包底和包身的交汇处与助燃气混合燃 烧。
在本发明的一个优选实施方案中，一个保护层设置在所述辐射体的 外部。 该保护层可以为例如含氧化铝（A 1203 ) 的陶瓷纤维层、 含氧化 锆（ΖΓθ2 )的陶瓷纤维层、 含氧化锆和氧化铝的陶瓷纤维层或其他适合 抗热震或抗急冷急热的材料形成的保护层。
在本发明的一个优选实施方案中，该金属包烘烤烧嘴还包括一个结 构管， 该结构管被设置为与所述至少一个燃气喷管流体连通。
在本发明的一个优选实施方案中，该金属包烘烤烧嘴还包括一个中 空的支撑体， 至少一个与大气连通的气孔设置在该支撑体上。进一步优 选地，该支撑体被设置为由两个或更多个相间隔布置的瓣状体构成的组 件， 该组件可以为推体、 柱体或类似形状。
在本发明的一个优选实施方案中，其中在所述支撑体处进一步设有 电磁阀门和与电磁阀门连通的排气管。
在本发明的一个优选实施方案中，该金属包烘烤烧嘴还包括一个金 属包盖， 其与所述辐射体的开口端相间隔， 间隔 i巨离例如可以为 10mm 至 35mm， 优选为 10mm至 20mm, 并且所述至少一个助燃气喷管和所述 至少一个燃气喷管从该金属包盖的中央穿过。
在本发明的一个优选实施方案中，该金属包烘烤烧嘴还设有一个导 流罩，该导流罩邻近所述至少一个助燃气喷管设置且开口端向下延伸面 向所述辐射体的内部。
优选地， 所述辐射体的高度与金属包的高度之比为 0. 2至 0. 8 , 更 优选为 0. 3至 0. 7, 进一步优选为 0. 38至 0. 62。
在本发明的一个优选实施方案中，所述分配部件通过一个助燃气输 气管与压力助燃气气源连通，所述至少一个燃气喷管通过一个燃气管道 与压力燃气源连通，其中所述至少一个燃气喷管的喷射量与所述至少一 个助燃气喷管的喷射量匹配且喷射方向均指向金属包内部，优选地指向 包底和包身的交汇处。
在本发明的一个优选实施方案中，所述助燃气输气管与一个助燃气 水封管连接， 所述燃气管道与一个燃气水封管连接， 其中所述燃气水封 管和助燃气水封管均插入一个在水箱内。
在本发明的一个优选实施方案中，一个压力助燃气气源管延伸进入 水箱内并与水箱密封固定，其被设置为延伸进入所述助燃气水封管内并 与进入助燃气水封管的活动水密封连接。进一步优选地， 一个压力燃气 气源管延伸进入水箱内并与水箱密封固定，其被设置为延伸进入所述燃 气水封管内并与进入燃气水封管的活动水密封连接。 附图说明
在下文中，本发明将通过非限制性的示例性实施方案参照附图来描 述， 在附图中， 相同的参考标号表示相同的部件或部分， 其中：
图 1是根据本发明第一优选实施方案的金属包烘烤烧嘴的示意图； 图 2是根据本发明第二优选实施方案的金属包烘烤烧嘴的示意图； 图 3 是根据本发明实施方案的烘烤烧嘴与燃气输气管以及助燃气 管道连接的示意图；
图 4 是本发明金属包烘烤烧嘴中所用的带有气孔的支撑体中一个 瓣状体的示例性示意图； 以及
图 5是根据本发明一个实施方案的金属包烘烤烧嘴的示意图。 具体实施方式
参考图 1， 示出了一种根据本发明第一优选实施方案的金属包烘烤 烧嘴。 该金属包烘烤烧嘴包括： 一个分配部件 2 , 其设置在金属包 1之 上； 一个辐射体 8 , 其设置在金属包 1的内部并具有向上的开口端， 其 优选为 ϋ型状的辐射体； 至少一个助燃气喷管 4， 其与所述分配部件 2 流体连通，从所述分配部件 2的端部向下延伸穿过所述辐射体 8并与之 在底部处结合， 助燃气由此通向金属包 1的内部， 优选地伸向包底和包 身的交汇处； 以及至少一个燃气喷管 5, 其与所述至少一个助燃气喷管 4相邻布置， 穿过所述辐射体 8并与之在底部处结合， 助燃气由此通向 金属包 1的内部， 优选地伸向包底和包身的交汇处。
优选地， 在所述辐射体 8的外围设置一保护层 18 (参见图 5 )， 以 避免实际应用中的高低温转换环境（20 ~ 1050Ό )损坏辐射体 8, 该保 护层 18例如可以为含氧化铝（A1203 )的陶瓷纤维层、 含氧化锆（Zr02 ) 的陶瓷纤维层或含氧化锆和氧化铝的陶瓷纤维层，也可以为其他适合抗 热震或抗急冷急热的材料制成的保护层。
所述辐射体 8能够吸收燃气燃烧后的热量，并将热量以热辐射的形 式留存在金属包内， 并且由于其体积可以占用金属包空间，使得在金属 包烘烤过程中的空间减小， 由此可实现节能的目的。
优选地， 该金属包烘烤烧嘴还包括一个结构管 6 (参见图 1和 2 )， 该结构管 6被设置为与所述至少一个燃气喷管 5流体连通。 该结构管 6 的作用和所述辐射体 8相似， 由于其体积可以占用辐射体 8空间， 使得 辐射体 8的内部空间减小， 同时又增加了换热面积， 由此可以对余热进 行更多的应用。
优选地， 该金属包烘烤烧嘴还包括一个中空的支撑体 3， 至少一个 与大气连通的气孔 20设置在该支撑体 3上， 如图 4所示。
优选地， 该金属包烘烤烧嘴还包括： 一个金属包盖 7， 其与所述辐 射体 8的开口端相间隔， 间隔距离可调为 10至 35mm， 优选为 10麵至 20mm;并且所述至少一个助燃气喷管 4和所述至少一个燃气喷管 5从该 金属包盖 7的中央穿过。
下面， 参考图 1， 示例性地描述根据本发明第一优选实施方案的金 属包换热烘烤烧嘴的工作原理。 首先， 助燃气通过分配部件 2进入助燃 气喷管 4, 燃气经由结构管 6进入燃气喷管 5， 使得燃气和助燃气在从 助燃气喷管 4、 燃气喷管 5射出后在金属包内部混合燃烧， 火焰射向金 属包底周边最不易烤好的区域，其它区域借助于焰火尾部温度以及辐射 体 8热辐射作用的反射温度进行烘烤，这使得金属包烘烤过程火焰热能 有序分级， 能够更为有效地被金属包分级吸收利用， 同时， 由于辐射体 8在金属包内部占据了一定的空间， 使得金属包内部待加热的空间相应 减少， 根据热力学原理可知， 由此可成比例地实现节能的目的。 接着， 燃烧后的气流穿过辐射体 8与金属包盖 7之间的缝隙进入辐射体 8 , 从 辐射体 8的底部沿着与助燃气喷管 4和燃气喷管 5内气流相反的方向上 升到支撑体 3上设置的气孔 20排出。
优选地， 该金属包烘烤烧嘴还设有一个导流軍 14 (参见图 2 )， 该 导流罩 14邻近所述至少一个助燃气喷管 4设置且开口端向下延伸面向 所述辐射体 8的内部。
参考图 2,示出了根据本发明第二优选实施方案的金属包烘烤烧嘴。 在该优选实施方案中， 所述金属包烘烤烧嘴还包括一个导流罩 14， 该 导流罩 14从金属包盖 7的端部向下延伸， 其开口端被布置为伸向所述 辐射体 8的内部并与之相间隔。 该导流軍 14使得燃烧后气流在排出之 前能够首先进入所述辐射体 8和所述导流罩 14之间的间隙， 气流通过 导流罩 14被导流到辐射体 8的底部， 避免过热的气流损坏助燃气喷管 4和燃气喷管 5 , 接着气流从所述辐射体 8的底部上升到支撑体 3上的 气孔 20排出， 上升过程中的气流可以与助燃气喷管 4和燃气喷管 5进 行热量交换， 进而提高助燃气和燃气的温度， 增强燃烧效果。
在本发明的实施方案中，所述辐射体 8的高度与金属包 1的高度之 比优选为 0. 2至 0. 8 ,更优选为 0. 3至 0. 7，进一步优选为 0. 38至 0. 62。
在本发明的实施方案中，该支撑体 3优选地被设置为由两个或更多 个相间隔布置的瓣状体构成的组件， 该组件可以为推体、柱体或类似形 状。 如图 4所示， 示出了支撑体（推体） 3的一个瓣状体， 其中至少一 个气孔 20设置在该瓣状体上。 类似地， 分配部件 2在本发明的优选实 施方案中 （如图 1和图 2所示）是环状， 但也可以是其他适当形状。 导 流罩 14在本实施方案中为推管， 但也可以是其他适当形状； 辐射体 8 也可以是柱形、 锥形或其他适合的形状。
参考图 5， 示出了根据本发明另一实施方案的金属包烘烤烧嘴。 不 同于图 1和 2中示出的金属包烘烤烧嘴，图 5中示出的金属包烘烤烧嘴 没有结构管 6， 也即， 辐射体 8通过与多个助燃气喷管 4和多个燃气喷 管 5在其底部的结合， 也可以稳固地处于金属包 1的内部， 其中助燃气 喷管 4和燃气喷管 5都通过分配部件 2 (图 5中示例性地示出了两个分 配部件 2 )来分别分配助燃气和燃气。 优选地， 在支撑体 3处还设有电 磁阀门 17和与电磁阀门 17连通的排气管 21。 当出现意外断电的情况 时， 该金属包烘烤烧嘴执行一緩慢降温过程， 意在防止助燃气喷管 4和 燃气喷管 5在高温环境中损坏。 在这一緩慢降温过程中， 首先， 电磁阀 门 17在失去电力后自动打开； 接着， 高温热气流从金属包盖 7与所述 辐射体 8的相间隔缝隙进入辐射体 8的内部后，由于高温热气流比重轻 于辐射体 8内的低温气流， 使得高温热气流上升至电磁阀门 17进而通 过排气管 21进一步提高升力而排出。 此时， 导流罩 14内为低速、 低温 下降的气流，并不断吸入新的冷空气以冷却助燃气喷管 4和燃气喷管 5， 从而使助燃气喷管 4和燃气喷管 5免于受到损坏，可以保持一定的物理 强度， 稳定悬挂于辐射体 8。
下面， 参考图 3， 示出了根据本发明实施方案的烘烤烧嘴与燃气输 气管以及助燃气管道连接的示意图。在本发明的优选实施方案中， 所述 分配部件 2通过助燃气输气管 9与压力助燃气气源连通，结构管 6通过 燃气管道 10与压力燃气源连通， 其中燃气喷管 5的喷射量与助燃气喷 管 4的喷射量匹配且喷射方向均指向金属包内部，优选为包底与包身的 交汇处。
在本发明的实施方案中，所述助燃气输气管 9优选地通过一金属软 管与助燃气水封管 11连接， 类似地， 所述燃气管道 10也优选地通过一 金属软管与燃气水封管 15连接，其中所述助燃气水封管 11和燃气水封 管 15均插入水箱 12内。
优选地， 一个压力助燃气气源管 13也延伸进入水箱内部， 例如从 水箱 12的底部延伸进入， 并与水箱密封固定， 其被设置为延伸进入所 述助燃气水封管 11内并与进入助燃气水封管 11的活动水密封连接。
优选地， 一个压力燃气气源管 16也延伸进入水箱内部， 例如从水 箱 12的底部延伸进入， 并与水箱密封固定， 其被设置为延伸进入所述 燃气水封管 15内并与进入燃气水封管 15的活动水密封连接。
应理解， 本文所说的上部、 下部、 内部等方位都是针对金属包一般 工作位置而言的，仅仅是为了示例性地说明本发明， 并非旨在对本发明 进行任何限制。
还应理解， 在不偏离本发明的实质精神的情况下， 任何对于本发明 的改进、 变型或修改， 都旨在被包括在本发明所附的权利要求书的保护 范围之内。

Claims

权 利 要 求 书
1.一种金属包烘烤烧嘴， 包括：
至少一个分配部件（2) , 其设置在金属包（1)之上；
一个辐射体（8)， 其设置在金属包（1)的内部并具有向上的开口 端；
至少一个助燃气喷管（4) , 其与所述分配部件（2)流体连通， 从 所述分配部件（ 2 )的端部向下延伸穿过所述辐射体（ 8 )的底部并与之 在底部处结合， 助燃气由此通向金属包（1) 的内部； 以及
至少一个燃气喷管（5)， 其与所述至少一个助燃气喷管（4)相邻 布置， 穿过所述辐射体（8) 的底部并与之在底部处结合， 燃气由此通 向金属包（1) 的内部。
2. 根据权利要求 1所述的金属包烘烤烧嘴， 其特征在于： 一个保 护层（ 18 )设置在所述辐射体（ 8 ) 的外部。
3. 根据权利要求 1所述的金属包烘烤烧嘴， 其特征在于： 还包括 一个结构管（ 6 )， 其被设置为与所述至少一个燃气喷管（ 5 )流体连通。
4. 根据权利要求 1所述的金属包烘烤烧嘴， 其特征在于： 还包括 一个中空的支撑体（3) ， 至少一个与大气连通的气孔（20)设置在该 支撑体（3)上。
5. 根据权利要求 1所述的金属包烘烤烧嘴， 其特征在于： 还包括 一个金属包盖（7) , 其与所述辐射体（8)的开口端相间隔， 并且所述 至少一个助燃气喷管（ 4 )和所述至少一个燃气喷管（ 5 )从该金属包盖
(7) 的中央穿过。
6.根据权利要求 1所述的金属包洪烤烧嘴， 其特征在于： 还设有一 个导流罩（14) ， 其邻近所述至少一个助燃气喷管 （4)设置且开口端 向下延伸， 面向所述辐射体（8) 的内部。
7.根据权利要求 1所述的金属包烘烤烧嘴， 其特征在于： 所述辐射 体（8) 的高度与金属包（1) 的高度之比为 0.2至 0.8。
8.根据权利要求 2所述的金属包烘烤烧嘴， 其特征在于： 所述保护 层（18)为含氧化铝的陶瓷纤维层、含氧化锆的陶瓷纤维层或含氧化锆 和氧化铝的陶瓷纤维层。
9.根据权利要求 4所述的金属包烘烤烧嘴， 其特征在于： 在所述支 撑体（ 3)处进一步设有电磁阀门 （17)和与电磁阀门 （17)连通的排 气管 （21) 。
10.根据权利要求 1所述的金属包烘烤烧嘴， 其特征在于： 所述分 配部件（ 2 )通过一个助燃气输气管（ 9 )与压力助燃气气源管（ 13 )水 密封连通， 所述至少一个燃气喷管 （5)通过一个燃气管道（10)与压 力燃气源管（16)水密封连通， 其中所述至少一个燃气喷管 （5) 的喷射 量与所述至少一个助燃气喷管 （4) 的喷射量匹配且喷射方向均指向金 属包内部。
PCT/CN2011/000951 2010-06-12 2011-06-07 一种金属包烘烤烧嘴 WO2011153820A1 (zh)

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