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    • 2. 发明授权
    • Apparatus for cooling hot gases
    • 用于冷却热气体的装置
    • US4050912A
    • 1977-09-27
    • US687816
    • 1976-05-19
    • Klaus H. HemsathArvind C. Thekdi
    • Klaus H. HemsathArvind C. Thekdi
    • F25D1/02B01D47/06B01D47/14
    • B01D47/06Y10S261/09
    • There is provided an efficient, economical apparatus for cooling hot gases which includes three generally cylindrical, tubular members arranged in an upstanding U-shaped configuration. The hot gases are introduced downwardly into the first leg or member of the configuration where a plurality of water nozzles provide a water boundary circumscribing the interior of the first leg to prevent thermal fatigue thereof. A water nozzle in the first member acting as a jet pump entrains the hot gases and directs them into the transverse leg or member of the configuration for rapid,turbulent cooling therein. Packed beds are provided in the second upstanding leg or member of the configuration to permit scrubbing of the cooled gases prior to exit. Coolng the gases in such a manner permits the entire configuration to be constructed of steel plate without any special insulation.
    • 提供了一种用于冷却热气体的高效,经济的装置,其包括以直立的U形构型布置的三个大致圆柱形的管状构件。 热气体被向下引入到第一腿或其中多个水嘴提供限定第一腿的内部的水边界以防止其热疲劳的构造的构件。 在作为喷射泵的第一构件中的水喷嘴夹带热气体并将其引导到横向腿部或构造构件中以在其中快速,湍流冷却。 填充床设置在第二直立腿或构造构件中,以允许在出口之前洗涤冷却的气体。 以这种方式冷却气体可以使整个结构由钢板构成而没有任何特殊的绝缘。
    • 3. 发明授权
    • Burner for high temperature combustion air
    • 燃烧器用于高温燃烧空气
    • US4214866A
    • 1980-07-29
    • US966873
    • 1978-12-06
    • Arvind C. ThekdiKlaus H. HemsathFrank J. Vereecke
    • Arvind C. ThekdiKlaus H. HemsathFrank J. Vereecke
    • F23D11/10C21D9/70F23C7/00F23C7/02F23L15/04F27D17/00F27B3/22
    • C21D9/70F23C7/002
    • A burner within which there is a jet pump means. High pressure primary combustion air is fed to an inlet in the burner housing and then through the jet pump means. The high pressure air flowing through the jet pump means draws a secondary low pressure, high temperature air into the burner. The jet pump means entrains the secondary air within the primary air to form a combustion air mixture. A fuel means feeds fuel to the burner housing and the combustion air and fuel combine to form a suitable mixture for ignition. A swirler can be located within the means to feed the primary air to the inlet or within the burner itself. By swirling the primary air the flame pattern of the burner can be controlled. The burner of the present invention is particularly adaptable for soaking pits having a tile recuperator and the metallic recuperator disposed within a flue gas passageway.
    • 其中有喷射泵装置的燃烧器。 高压初级燃烧空气被供给到燃烧器壳体中的入口,然后通过喷射泵装置。 流过喷射泵装置的高压空气将二次低压高温空气吸入燃烧器。 喷射泵意味着将一次空气中的二次空气夹带以形成燃烧空气混合物。 燃料装置将燃料供给燃烧器壳体,并且燃烧空气和燃料结合形成合适的点火混合物。 旋流器可以位于将一次空气供给入口或燃烧器本身内的装置中。 通过旋转一次空气可以控制燃烧器的火焰图案。 本发明的燃烧器特别适用于将具有瓦片换热器和设置在烟道气通道内的金属换热器的凹坑浸泡。
    • 4. 发明授权
    • Batch coil annealing furnace baseplate
    • 批线退火炉基板
    • US4310302A
    • 1982-01-12
    • US135214
    • 1980-03-28
    • Arvind C. ThekdiRobert W. BuchwaldRobert A. Schmall
    • Arvind C. ThekdiRobert W. BuchwaldRobert A. Schmall
    • C21D9/663C21D9/673F27B11/00F27B5/04C21D1/12
    • C21D9/673F27B11/00
    • The present invention is a method and apparatus for heat treating at least one work item, such as a coil, having an axial passage and being axially stacked on a base support means disposed within a cover means which is located on the base support means. The base support can be on the floor of a furnace and with the chamber of the furnace. A means to force the atmosphere such as an axial fan is located in the base. The atmosphere is forced axially from the base, up through an axial path including the axial passage of the at least one coil, through a top space between the top of the stack of coils and the top of the cover means, down through the annular space between the outside of the coils and the inside of the cover means, and back to the axial path through a base space beneath the at least one coil, communicating from the annular space to the axial path.
    • 本发明是一种用于热处理至少一个工件(例如线圈)的方法和装置,其具有轴向通道并被轴向堆叠在设置在位于基座支撑装置上的盖装置内的基座支撑装置上。 基座支架可以放在炉子的底部和炉子的室上。 迫使大气如轴流风扇的装置位于基座中。 气氛从基座轴向通过包括至少一个线圈的轴向通道的轴向路径,穿过线圈堆的顶部和盖装置的顶部之间的顶部空间,向下穿过环形空间 在线圈的外部和盖装置的内部之间,并且通过至少一个线圈下方的基座空间返回到轴向路径,从环形空间连通到轴向路径。
    • 6. 发明授权
    • Self-stabilizing burner
    • 自稳燃烧器
    • US3951584A
    • 1976-04-20
    • US472532
    • 1974-05-23
    • Arvind C. Thekdi
    • Arvind C. Thekdi
    • F23D14/22F23C6/04F23C99/00F23D14/20F23D14/24F23L1/00F23L9/02F23D15/02
    • F23D14/20
    • A gas burner is provided with a rich combustion chamber contiguous with a second combustion chamber through which combustion air enters in predetermined flow patterns to enable the burner to be self-stabilizing in a highly efficient manner. The rich combustion chamber receives air through a first port arrangement which, among other things, establishes underpressure zones at the center of the rich combustion chamber and air layer zones thereabout. Combustion air is supplied to the second chamber by a second port arrangement which, among other things, assures thorough combustion therein independent of the burner firing rate. When a longitudinal stream of gaseous fuel is exhausted into the rich combustion chamber, the underpressure zones force same outwardly to mix with combustion air in the first chamber while positive pressure in the second chamber is effective to recirculate a portion of the mixture whereby a sufficient combustion level is achieved in the rich combustion chamber to minimize carbon formation while the air layer zones resulting from the first port arrangement assure that carbon will neither be formed nor deposited therein.
    • 气体燃烧器设置有与第二燃烧室邻接的富燃烧室,燃烧空气通过该第二燃烧室以预定的流动模式进入,以使得燃烧器能够以高效的方式自稳定。 富燃烧室通过第一端口装置接收空气,其中除了别的以外,在富燃烧室的中心和其周围的空气层区域建立负压区。 燃烧空气通过第二端口装置供应到第二室,除了别的以外,确保其中的彻底燃烧,而不管燃烧器的燃烧速率。 当气体燃料的纵向气流排放到富燃烧室中时,负压区向外强制相同以与第一室中的燃烧空气混合,而第二室中的正压有效地使混合物的一部分再循环,由此充分燃烧 在富燃烧室中实现水平以最小化碳的形成,而由第一端口排列产生的空气层区域确保碳既不形成也不沉积在其中。
    • 7. 发明授权
    • Ultra low NO.sub.x industrial burner
    • 超低NOx工业燃烧器
    • US5240404A
    • 1993-08-31
    • US829713
    • 1992-02-03
    • Klaus H. HemsathArvind C. Thekdi
    • Klaus H. HemsathArvind C. Thekdi
    • F23D14/02F23M5/02
    • F23D14/02F23M5/025
    • An industrial gas burner is disclosed which operates at low air/fuel ratios to avoid NO.sub.x formation without carbon sooting. The burner includes a refractory block having a cylindrically stepped throat passage extending therethrough, a housing adjacent the inlet end of the refractory block and a swirl plate inbetween the block and housing. Vane passages in the swirl plate provide fluid communication between the throat passage and an annular entrainment passage in the housing. A plurality of circumferentially spaced gas jet nozzles in the entrainment passage cause jet entrainment and mixing of fuel and combustion air which is ported to the entrainment chamber. The jet streams of mixed air/fuel impinge the swirl plate whereat the mixture undergoes a further mixing because of the pressure drop and swirling therein. The swirling air/fuel mixture is thus intimately and thoroughly mixed when it exits the swirl plate as a swirling mass at the entry end of the throat passage where it is ignited. The mixing is so intimate that combustion of the air/fuel can occur at ratios as low as 5 to 1 without carbon sooting and NO.sub.x formation.
    • 公开了一种工业气体燃烧器,其在低空气/燃料比下运行,以避免碳排放的NOx形成。 燃烧器包括具有延伸穿过其中的圆柱形阶梯式喉部通道的耐火块,与耐火块的入口端相邻的壳体和位于块和壳体之间的涡流板。 旋流板中的叶片通道提供喉部通道和壳体中的环形夹带通道之间的流体连通。 夹带通道中的多个周向间隔开的气体喷嘴引起喷射夹带和混合燃料和被引导到夹带室的燃烧空气。 混合空气/燃料的喷射流冲击涡流板,由于其中的压降和涡流,混合物进一步混合。 因此,当旋转的空气/燃料混合物在其被点燃的喉部通道的入口端处作为旋转物质离开涡旋板时,其充分混合。 混合是如此的紧密,使得空气/燃料的燃烧可以以低至5比1的比例发生,而不产生碳烟和形成NOx。