Patents by Inventor Xiedong Lin

Xiedong Lin 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).

  • Phosphorus-free corrosion and scale inhibitor used in circulating cooling water of central air conditioning and its preparation method
    Patent number: 9714182
    Abstract: A phosphorus-free corrosion and scale inhibitor used in circulating cooling water of central air conditioning is provided, which contains tourmaline, green corrosion and scale inhibitor, zinc salt and the like, wherein the content of the tourmaline is 5-500 g/t (calculated based on solid form); the content of the green corrosion and scale inhibitor is 5-50 g/t (calculated based on liquid form); and the content of the zinc salt is 0.2-0.8 g/t (calculated based on solid form), wherein the tourmaline includes dravite, schorlite, elbaite, manganese tourmaline, uvite or the like. The green corrosion and scale inhibitor contains any one, or two or three of polyaspartic acid, polyepoxysuccinic acid and polymaleic acid. Copper corrosion can be effectively inhibited by adding 0.2-2 g/t of benzotriazole (calculated based on solid form) into copper-containing devices. Also disclosed is a method of preparing the phosphorous-free corrosion and scale inhibitor used in circulating cooling water of central air conditioning.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: July 25, 2017
    Assignee: GUANGZHOU SPECIAL PRESSURE EQUIPMENT INSPECTION AND RESEARCH INSTITUTE
    Inventors: Bo Yang, Maodong Li, Zhigang Chen, Wenxian Huang, Lin Yang, Jinmei Lin, Wen Yu, Shiping Li, Hui Zhang, Yuhui Du, Xiedong Lin, Zhenling Wu
  • PHOSPHORUS-FREE CORROSION AND SCALE INHIBITOR USED IN CIRCULATING COOLING WATER OF CENTRAL AIR CONDITIONING AND ITS PREPARATION METHOD
    Publication number: 20160318783
    Abstract: A phosphorus-free corrosion and scale inhibitor used in circulating cooling water of central air conditioning is provided, which contains tourmaline, green corrosion and scale inhibitor, zinc salt and the like, wherein the content of the tourmaline is 5-500 g/t (calculated based on solid form); the content of the green corrosion and scale inhibitor is 5-50 g/t (calculated based on liquid form); and the content of the zinc salt is 0.2-0.8 g/t (calculated based on solid form), wherein the tourmaline includes dravite, schorlite, elbaite, manganese tourmaline, uvite or the like. The green corrosion and scale inhibitor contains any one, or two or three of polyaspartic acid, polyepoxysuccinic acid and polymaleic acid. Copper corrosion can be effectively inhibited by adding 0.2-2 g/t of benzotriazole (calculated based on solid form) into copper-containing devices. Also disclosed is a method of preparing the phosphorous-free corrosion and scale inhibitor used in circulating cooling water of central air conditioning.
    Type: Application
    Filed: December 1, 2014
    Publication date: November 3, 2016
    Inventors: Bo Yang, Maodong Li, Zhigang Chen, Wenxian Huang, Lin Yang, Jinmei Lin, Wen Yu, Shiping Li, Hui Zhang, Yuhui Du, Xiedong Lin, Zhenling Wu