Patents by Inventor Qingquan Zeng

Qingquan Zeng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8924983
    Abstract: A method and device for processing inter-subframe service load balancing and processing inter-cell interference is disclosed. The method includes: when processing the inter-subframe service load balancing, determining a service load of a link in a time period; determining a resource utilization ratio threshold according to the service load; and transmitting service data in each subframe according to the utilization ratio threshold. When processing inter-cell interference, performing inter-subframe service load balancing and in combination with various inter-cell interference coordination technologies, performing an interference mitigation process in one or a combination of a frequency domain, power and a space domain by interference coordination technology.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: December 30, 2014
    Assignee: China Academy of Telecommunications Technology
    Inventors: Zhiqiu Zhu, Nan Li, Qingquan Zeng, Mingyu Xu
  • Publication number: 20120331478
    Abstract: The present application provides a method and device for processing inter-subframe service load balancing and processing inter-cell interference, which includes: when processing the inter-subframe service load balancing, determining a service load of a link in a time period; determining a resource utilization ratio threshold according to the service load; and transmitting service data in each subframe according to the utilization ratio threshold. The inter-subframe service load balancing is processed when the inter-cell interference is processed, and in combination with various inter-cell interference coordination technologies, interference mitigation in one of a frequency domain, power and a space domain or the combination thereof is processed by the interference coordination technology.
    Type: Application
    Filed: March 21, 2011
    Publication date: December 27, 2012
    Inventors: Zhiqiu Zhu, Nan Li, Qingquan Zeng, Mingyu Xu
  • Patent number: 7135105
    Abstract: The present invention provides a pyrolysis furnace with new type heat supply and a method of high temperature cracking using the same. The present invention employs top burners and bottom burners combined heat supply; the inlet of crossover section is connected from middle-upper portion of side wall of radiant section wall; and the present invention has the feature of uniform heat supply, high effectiveness, flexible and simple operation and control, and small investment, it is suitable for cracking reaction of hydrocarbons feedstock.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: November 14, 2006
    Assignees: China Petroleum & Chemical Corporation, Beijing Research Institutue of Chemical Industry
    Inventors: Qingquan Zeng, Guoqing Wang, Shixing Xu, Zhaobin Zhang
  • Publication number: 20030070962
    Abstract: The present invention provides a pyrolysis furnace with new type radiant tubes arrangement and method of its operation and usage. The first pass tubes and second pass tubes of radiant tubes of pyrolysis furnace according to the present invention are located at two parallel planes respectively, the projection of second pass tube of radiant tubes in each group is corresponding to the center location of projection connecting line of two first pass tubes adjacent therewith. The present invention can also employ top burners and bottom burners; the inlet of crossover section is located at middle-upper portion of radiant section wall. The present invention has the feature of uniform heat conduction, high effectiveness, flexible and simple operation and control, and small investment, it is suitable for cracking reaction of hydrocarbons feedstock.
    Type: Application
    Filed: September 19, 2002
    Publication date: April 17, 2003
    Inventors: Qingquan Zeng, Guoqing Wang, Shixing Xu, Zhaobin Zhang
  • Publication number: 20030066782
    Abstract: The present invention provides a pyrolysis furnace with new type heat supply and a method of high temperature cracking using the same. The present invention employs top burners and bottom burners combined heat supply; the inlet of crossover section is connected from middle-upper portion of side wall of radiant section wall; and the present invention has the feature of uniform heat supply, high effectiveness, flexible and simple operation and control, and small investment, it is suitable for cracking reaction of hydrocarbons feedstock.
    Type: Application
    Filed: September 19, 2002
    Publication date: April 10, 2003
    Inventors: Qingquan Zeng, Guoqing Wang, Shixing Xu, Zhaobin Zhang
  • Patent number: 6530422
    Abstract: A heat exchanger tube, having at least one twisted baffle therein, each of said twisted baffles extends in the inside of the heat exchanger tube along the axis thereof, said twisted baffles extends as long as at least a part of the entire length of said heat exchanger tube, and said twisted baffles are integrated with the inner surface of said heat exchanger tube. The twisted angle of said twisted baffles is between 100° to 360°. The ratio between the axial length of said heat exchanger tube with the twisted angle 180° of said twisted baffles and the internal diameter of said heat exchanger tube is 2 to 3. The thickness of said twisted baffles is approximated to that of said heat exchanger tube; in every cross section of said heat exchanger tube, the transition zone from the surface of said twisted baffles to the surface of said heat exchanger tube, and vice versa, is in the shape of a concave circular arc.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: March 11, 2003
    Assignees: China Petro-Chemical Corporation, Institute of Metal Research Science Academy of China, China Petro-Chemical Corporation Beijing Research Intitute of Chemical Industry
    Inventors: Yaoxiao Zhu, Zhi Zheng, Qingquan Zeng, Ning Xiuzhen, Lou Langhong, Shiqun Xu, Guoqing Wang, Qingju Bai
  • Patent number: 6481492
    Abstract: A heat exchanger tube, having at least one twisted baffle therein, each of said twisted baffles extends in the inside of the heat exchanger tube along the axis thereof, said twisted baffles extends as long as at least a part of the entire length of said heat exchanger tube, and said twisted baffles are integrated with the inner surface of said heat exchanger tube. The twisted angle of said twisted baffles is between 100° to 360°. The ratio between the axial length of said heat exchanger tube with the twisted angle 180° of said twisted baffles and the internal diameter of said heat exchanger tube is 2 to 3. The thickness of said twisted baffles is approximated to that of said heat exchanger tube; in every cross section of said heat exchanger tube, the transition zone from the surface of said twisted baffles to the surface of said heat exchanger tube, and vice versa, is in the shape of a concave circular arc.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: November 19, 2002
    Assignee: China Petro-Chemical Corp. and others
    Inventors: Yaoxiao Zhu, Zhi Zheng, Qingquan Zeng, Ning Xiuzhen, Lou Langhong, Shiqun Xu, Guoqing Wang, Qingju Bai
  • Publication number: 20020007941
    Abstract: A heat exchanger tube, having at least one twisted baffle therein, each of said twisted baffles extends in the inside of the heat exchanger tube along the axis thereof, said twisted baffles extends as long as at least a part of the entire length of said heat exchanger tube, and said twisted baffles are integrated with the inner surface of said heat exchanger tube. The twisted angle of said twisted baffles is between 100° to 360°. The ratio between the axial length of said heat exchanger tube with the twisted angle 180° of said twisted baffles and the internal diameter of said heat exchanger tube is 2 to 3. The thickness of said twisted baffles is approximated to that of said heat exchanger tube; in every cross section of said heat exchanger tube, the transition zone from the surface of said twisted baffles to the surface of said heat exchanger tube, and vice versa, is in the shape of a concave circular arc.
    Type: Application
    Filed: September 25, 2001
    Publication date: January 24, 2002
    Applicant: CHINA PETRO-CHEMICAL CORPORATION
    Inventors: Yaoxiao Zhu, Zhi Zheng, Qingquan Zeng, Ning Xiuzhen, Lou Langhong, Shiqun Xu, Guoqing Wang, Qingju Bai