Patents by Inventor Chengwu Zhang

Chengwu Zhang 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).

  • High gradient, oil-cooled iron removal device with inner circulation
    Patent number: 9511377
    Abstract: A high-gradient internal-circulating oil-cooled Magnetic Separator, includes magnetic system coils, an internal-circulating oil path system, an external-cooling system and an oil conservator. The magnetic system coils are used for generating excitation magnetic field to achieve the iron-absorption function, the magnetic paths of the magnetic system coils being an open magnetic path structure. The internal-circulating oil path system is used for allocation and collection circulation of transformer oil. The external-cooling system is used for heat dissipation of transformer oil to achieve internal heat dissipation balance. The oil conservator is used as a supplementary container for the transformer oil expansion during the apparatus's operation. An internal-circulating structure is employed, and external-circulating pipes are simplified, circulating resistance in oil paths being reduced, problems including complex interference in oil paths arrangement, low circulation efficiency, leakage at welding spots, etc.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: December 6, 2016
    Assignee: LONGI MAGNET Co., Ltd.
    Inventors: Chengchen Zhang, Chengwu Zhang, Nengping Zhao, Hongxu Li, Ylng Zhao, Shikuan Bi, Wenbo Yu
  • HIGH GRADIENT, OIL-COOLED IRON REMOVAL DEVICE WITH INNER CIRCULATION
    Publication number: 20150014224
    Abstract: A high-gradient internal-circulating oil-cooled Magnetic Separator, includes magnetic system coils, an internal-circulating oil path system, an external-cooling system and an oil conservator. The magnetic system coils are used for generating excitation magnetic field to achieve the iron-absorption function, the magnetic paths of the magnetic system coils being an open magnetic path structure. The internal-circulating oil path system is used for allocation and collection circulation of transformer oil. The external-cooling system is used for heat dissipation of transformer oil to achieve internal heat dissipation balance. The oil conservator is used as a supplementary container for the transformer oil expansion during the apparatus's operation. An internal-circulating structure is employed, and external-circulating pipes are simplified, circulating resistance in oil paths being reduced, problems including complex interference in oil paths arrangement, low circulation efficiency, leakage at welding spots, etc.
    Type: Application
    Filed: December 26, 2012
    Publication date: January 15, 2015
    Inventors: Chengchen Zhang, Chengwu Zhang, Nengping Zhao, Hongxu Li, YIng Zhao, Shikuan Bi, Wenbo Yu