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    Ethylene cracking furnace
    1.
    发明授权
    Ethylene cracking furnace 有权
    乙烯裂解炉

    公开(公告)号：US08916030B2

    公开(公告)日：2014-12-23

    申请号：US13124590

    申请日：2009-10-15

    申请人： Xiou He ,  Guoqing Wang ,  Changli Li ,  Lijun Zhang ,  Jinke Li ,  Chen Shao ,  Guang Li ,  Yuping Guo

    发明人： Xiou He ,  Guoqing Wang ,  Changli Li ,  Lijun Zhang ,  Jinke Li ,  Chen Shao ,  Guang Li ,  Yuping Guo

    IPC分类号： C10G9/14 ,  B01J8/00 ,  C07C4/02

    CPC分类号： C07C4/02 ,  C10G2400/20

    摘要： An ethylene cracking furnace comprising a high pressure steam drum (1), a convection section (2), a radiant section (3), multiple groups of radiant coils (4) arranged vertically in the firebox of radiant section, burners (5) and transfer line exchangers (6), each radiant coil comprising a first-pass tube (7), a second-pass tube (8) and a connection member (9); feedstocks being introduced into an inlet end of the first-pass tube and outflow from an outlet end of the second-pass tube, said first-pass tube (7) and said second-pass tube (8) are non-split coils, and the centerlines of the respective radiant tubes (7, 8) are within a common plane; said connection member (9) is a tridimensional structural member comprising an inlet bending tube (10), a return bending tube (11) and an outlet bending tube (12); said inlet bending tubes (10) and said outlet bending tubes (12) are arranged at two sides of the plane containing the centerlines of said first-pass tubes (7) and said second-pass tubes (8), respectively; the projections of the respective connection members (9) in a side view are the same curve line that is symmetrical, continuous and closed; the inner diameters of said radiant coils (7, 8) is varied at least once along the length of the tubes.

    摘要翻译： 一种乙烯裂解炉，包括高压蒸汽桶（1），对流部分（2），辐射部分（3），在辐射部分的火箱中垂直布置的多组辐射线圈（4），燃烧器（5）和 传输线交换器（6），每个辐射线圈包括第一通道管（7），第二通管（8）和连接构件（9）; 原料被引入第一管的入口端并从第二通管的出口端流出，所述第一通管（7）和所述第二通管（8）是非分裂线圈，并且 各辐射管（7,8）的中心线在公共平面内; 所述连接构件（9）是包括入口弯曲管（10），返回弯管（11）和出口弯管（12）的立体结构构件; 所述入口弯管（10）和出口弯管（12）分别布置在包含所述第一通管（7）和所述第二通管（8）的中心线的平面的两侧; 各连接构件（9）的侧视图的突起是对称的，连续的和闭合的相同的曲线; 所述辐射线圈（7,8）的内径沿着管的长度改变至少一次。

    Tubular cracking furnace
    3.
    发明授权
    Tubular cracking furnace 有权
    管式裂解炉

    公开(公告)号：US08585890B2

    公开(公告)日：2013-11-19

    申请号：US12593216

    申请日：2008-03-28

    申请人： Guoqing Wang ,  Lijun Zhang ,  Zhiguo Du ,  Shuo Chen ,  Zhaobin Zhang ,  Cong Zhou ,  Xianfeng Zhou

    发明人： Guoqing Wang ,  Lijun Zhang ,  Zhiguo Du ,  Shuo Chen ,  Zhaobin Zhang ,  Cong Zhou ,  Xianfeng Zhou

    IPC分类号： C10G9/14 ,  B01J8/00

    CPC分类号： F28F13/12 ,  C10G2400/20 ,  F28D2021/0059 ,  F28F1/40 ,  F28F19/00 ,  Y10T29/4935

    摘要： This invention relates to a tubular cracking furnace, especially an ethylene cracking furnace, which comprises a convection section and a or dual radiant section(s), at least one heat transfer intensifying member arranged in at least one pass each radiant tube in said radiant section, said at least one heat transfer intensifying member comprises a first heat transfer intensifying member, which is arranged at a location between 10D and 25D upstream of the extreme point of said at least one pass radiant tube metal temperature, wherein D is the inner diameter of the radiant tube having heat transfer intensifying members. The present invention could achieve the best enhanced heat transfer result with given number of heat transfer intensifying member, by optimizing the locations of heat transfer intensifying members in the radiant tube.

    摘要翻译： 本发明涉及一种管状裂解炉，特别是一种乙烯裂解炉，其包括一个对流段和一个或两个辐射区，至少一个传热增强构件，其布置在至少一个通路中，每个辐射管中的每个辐射管 所述至少一个传热增强构件包括第一传热增强构件，其布置在所述至少一个通过辐射管金属温度的极限点上游的10D和25D之间的位置，其中D是 辐射管具有传热增强构件。 通过优化辐射管中的传热增强构件的位置，本发明可以通过给定数量的传热增强构件实现最佳的增强的传热结果。

    ANTENNAS MOUNTED UNDER DIELECTRIC PLATES
    6.
    发明申请
    ANTENNAS MOUNTED UNDER DIELECTRIC PLATES 有权
    天线安装在电介质板下

    公开(公告)号：US20120050114A1

    公开(公告)日：2012-03-01

    申请号：US12870766

    申请日：2010-08-27

    申请人： Qingxiang Li ,  Robert W. Schlub ,  Fletcher R. Rothkopf ,  Adam D. Mittleman ,  Yi Jiang ,  Emily McMilin ,  Lijun Zhang

    发明人： Qingxiang Li ,  Robert W. Schlub ,  Fletcher R. Rothkopf ,  Adam D. Mittleman ,  Yi Jiang ,  Emily McMilin ,  Lijun Zhang

    IPC分类号： H01Q1/24

    CPC分类号： H01Q1/38 ,  H01Q1/2266 ,  H01Q1/24 ,  H01Q1/243 ,  H01Q1/44 ,  H01Q1/48 ,  H01Q9/0421 ,  H01Q9/42 ,  H01Q13/10

    摘要： Electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may include antennas such as inverted-F antennas that contain antenna resonating elements and antenna ground elements. Antenna resonating elements may be formed from patterned conductive traces on substrates such as flex circuit substrates. Antenna ground elements may be formed from conductive device structures such as metal housing walls. Support and biasing structures such as dielectric support members and layer of foam may be used to support and bias antenna resonating elements against planar device structures. The planar device structures against which the antenna resonating elements are biased may be planar dielectric members such as transparent layers of display cover glass or other planar structures. Adhesive may be interposed between the planar structures and the antenna resonating elements.

    摘要翻译： 提供包含无线通信电路的电子设备。 无线通信电路可以包括射频收发器电路和天线结构。 天线结构可以包括天线，例如包含天线谐振元件和天线接地元件的倒F天线。 天线谐振元件可以由诸如柔性电路基板的基板上的图案化导电迹线形成。 天线接地元件可以由诸如金属外壳壁的导电器件结构形成。 诸如电介质支撑构件和泡沫层的支撑和偏置结构可用于支撑和偏置天线谐振元件抵抗平面装置结构。 天线谐振元件被偏压的平面器件结构可以是诸如显示器盖玻璃或其它平面结构的透明层的平面电介质构件。 粘合剂可以介于平面结构和天线谐振元件之间。

    Channel Memory Length Selection Method and Apparatus for Wireless Communication Systems
    7.
    发明申请
    Channel Memory Length Selection Method and Apparatus for Wireless Communication Systems 有权
    无线通信系统的通道存储器长度选择方法和装置

    公开(公告)号：US20080123728A1

    公开(公告)日：2008-05-29

    申请号：US11563083

    申请日：2006-11-24

    申请人： Yuan Xia ,  Min Lei ,  Lijun Zhang

    发明人： Yuan Xia ,  Min Lei ,  Lijun Zhang

    IPC分类号： H04L27/01

    CPC分类号： H04L25/0216

    摘要： A channel memory length selection method for wireless communication systems is provided. The method comprises estimating an initial channel impulse response (CIR) for the wireless communication system; determining a first refined CIR with a first group of taps and a second refined CIR with a second group of taps based upon the initial CIR, number of the second group of taps being less than number of the first group of taps; and selecting either the number of the first group of taps or the number of the second group of taps as the channel memory length according to an energy concentration criterion in regard to the first refined CIR and the second refined CIR.

    摘要翻译： 提供了一种用于无线通信系统的通道存储器长度选择方法。 该方法包括：估计无线通信系统的初始信道脉冲响应（CIR）; 基于初始CIR确定具有第一组抽头的第一精简CIR和具有第二组抽头的第二精细CIR，第二组抽头的数量小于第一组抽头的数量; 并且根据关于第一精炼CIR和第二精细CIR的能量集中标准，选择抽头的第一组的数量或第二组抽头的数量作为通道存储器长度。

    Burst detection apparatus and method for radio frequency receivers
    9.
    发明申请
    Burst detection apparatus and method for radio frequency receivers 有权
    用于射频接收机的突发检测装置和方法

    公开(公告)号：US20060104388A1

    公开(公告)日：2006-05-18

    申请号：US10989327

    申请日：2004-11-17

    申请人： LiJun Zhang

    发明人： LiJun Zhang

    IPC分类号： H04L27/06

    CPC分类号： H04L25/067 ,  H04L7/007

    摘要： The present invention discloses a burst detection apparatus and method. The burst detection apparatus of the present invention comprises a power module, a soft-metric RMS module, and a quality determination module. The bust detection method comprises the following steps: At first, a reciprocal value of the received signal's power is calculated. Next, a RMS value of the soft-metrics according to the received signal is computed. At last, a product of the reciprocal value and the RMS value is compared with a given threshold value to generate a Boolean outcome as a quality determination decision. If the product of these values is lower than the given threshold value, it means the received signal is believed as noise; otherwise, it is believed as the real signal.

    摘要翻译： 本发明公开了一种突发检测装置和方法。 本发明的突发检测装置包括电源模块，软度RMS模块和质量确定模块。 胸围检测方法包括以下步骤：首先计算接收信号功率的倒数值。 接下来，计算根据接收信号的软度量的RMS值。 最后，将互逆值和RMS值的乘积与给定的阈值进行比较，以生成布尔结果作为质量判定决定。 如果这些值的乘积低于给定的阈值，则表示接收到的信号被认为是噪声; 否则，它被认为是真实的信号。

    On-chip differential inductor and applications thereof
    10.
    发明授权
    On-chip differential inductor and applications thereof 有权
    片上差分电感及其应用

    公开(公告)号：US07039381B2

    公开(公告)日：2006-05-02

    申请号：US10200802

    申请日：2002-07-23

    申请人： Hung Yu Yang ,  Jesus A. Castaneda ,  Lijun Zhang

    发明人： Hung Yu Yang ,  Jesus A. Castaneda ,  Lijun Zhang

    IPC分类号： H04B1/18

    CPC分类号： H01F17/0006 ,  H01F17/0013 ,  H01F2017/0046 ,  H01F2021/125 ,  H01L23/5227 ,  H01L2924/0002 ,  H01L2924/00

    摘要： An on-chip differential inductor includes a 1st interwound winding having a substantially octagonal shape, or rectangular octagonal shape, and a 2nd interwound winding having a substantially octagonal shape, or rectangular octagonal shape, that is interwound with the 1st interwound winding. Both the 1st and 2nd interwound windings are on the same layer of the integrated circuit. Each interwound winding includes two nodes; one of node of each winding is commonly coupled to a reference potential. The other node of each winding is operably coupled to receive a respective leg of a differential signal.

    摘要翻译： 片上差分电感器包括具有基本八角形形状或矩形八边形形状的第一绕组绕组和具有基本八角形形状的第二绕组绕组，或 矩形八边形，与第1绕组绕组相互缠绕。 1 和2 相互绕组绕组在集成电路的同一层上。 每个互绕绕组包括两个节点; 每个绕组的节点之一通常耦合到参考电位。 每个绕组的另一个节点可操作地耦合以接收差分信号的相应支路。