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    • 8. 发明授权
    • Method and apparatus for producing spheroidal glass particles
    • 用于生产球状玻璃颗粒的方法和装置
    • US5611833A
    • 1997-03-18
    • US229215
    • 1994-04-18
    • Sudhir R. BrahmbhattChristopher R. Young
    • Sudhir R. BrahmbhattChristopher R. Young
    • C03B19/10
    • C03B19/1025
    • One forms spherical or spheroidal glass particles by entraining a powder of glass particles in a carrier gas and injecting the entrained particles into the center of the flame of an oxygen-fuel burner. Separate conduits carry fuel, such as natural gas, and substantially pure oxygen into the burner to support combustion. The temperature in the burner flame does not exceed about 5000.degree. F. Heat from the flame causes the particles to become spheroidal, due to surface tension, but the particles do not remain in the flame long enough to melt. By adjusting a valve in the line which conveys the carrier gas and glass particles, one varies the time during which the particles reside in the flame. If the pressure becomes too high, the residence time decreases, and the particles may not become entirely spheroidal. If the pressure becomes too low, the residence time increases, and the particles may melt and/or form undesirable filaments. One can retrieve the product particles from the bottom of the burner chamber, and also by filtering the exhaust gases to recover particles entrained by the exhaust. The oxygen used to support combustion can also be used as a carrier gas. The invention also includes an apparatus for automatically regulating the flow of oxygen and fuel, so as to maintain both the desired flame temperature and the optimal ratio of oxygen to fuel.
    • 一种通过将载体气体中的玻璃颗粒的粉末夹带并将夹带的颗粒注入氧 - 燃料燃烧器的火焰的中心而形成球形或球状玻璃颗粒。 单独的管道将诸如天然气的燃料和基本上纯的氧气输送到燃烧器中以支持燃烧。 燃烧器火焰中的温度不超过约5000°F。由于表面张力,来自火焰的热量导致颗粒变为球形,但是颗粒不会残留在火焰中足够长的时间以熔化。 通过调节输送载气和玻璃颗粒的管线中的阀,可以改变粒子驻留在火焰中的时间。 如果压力变得太高,停留时间减少,并且颗粒可能不会变成完全球形。 如果压力变得太低,则停留时间增加,并且颗粒可能熔化和/或形成不期望的长丝。 可以从燃烧室的底部检索产品颗粒,也可以通过过滤废气以回收排气夹带的颗粒。 用于支持燃烧的氧气也可以用作载气。 本发明还包括一种用于自动调节氧气和燃料的流动的装置,以便保持期望的火焰温度和氧气与燃料的最佳比例。
    • 9. 发明授权
    • High-temperature burner
    • 高温燃烧器
    • US4931013A
    • 1990-06-05
    • US375953
    • 1989-07-06
    • Sudhir R. BrahmbhattChristopher R. Young
    • Sudhir R. BrahmbhattChristopher R. Young
    • C21C5/52C21C5/56F23D14/22F23D14/32F23L7/00
    • F23D14/32C21C5/5217C21C5/562F23D14/22F23L7/00F23C2900/07021Y02E20/344Y02P10/143Y02P10/216Y02P10/34
    • This invention concerns the burning of fuels, such as natural gas, at high temperatures. The invention includes a high-efficiency burner which achieves substantially complete combusiton at modest cost. The burner of the present invention includes a generally cylindrical housing having a central bore and two concentric annular regions. A lance is inserted through the central bore, and protrudes slightly from the front face of the burner housing. The fuel is directed through the inner annular region, and oxygen-enriched combustion air is directed through the outer annular region. Substantially pure oxygen is directed through the lance. The gases in the lance and the annular regions do not communicate with each other within the burner housing, and all burnign takes place outside the housing. The same supply of oxygen can be used to supply the lance and to enrich the combustion air. The present invention achieves overall results which are substantially comparable to the results obtained from pure oxygen burners, but at a greatly reduced equipment cost, and with reduced operating cost.
    • 本发明涉及在高温下燃烧诸如天然气的燃料。 本发明包括一种高效率的燃烧器,其以适中的成本实现了基本上完全的燃烧。 本发明的燃烧器包括具有中心孔和两个同心环形区域的大致圆柱形壳体。 喷枪穿过中心孔插入,并从燃烧器壳体的前表面略微突出。 燃料被引导通过内部环形区域,并且富氧燃烧空气被引导通过外部环形区域。 基本上纯的氧被引导通过喷枪。 喷枪和环形区域中的气体在燃烧器壳体内不彼此连通,并且所有燃烧都发生在壳体外部。 可以使用相同的氧气供应来提供喷枪并富集燃烧空气。 本发明实现了与从纯氧燃烧器获得的结果基本相当的整体结果,但是大大降低了设备成本,并降低了运行成本。