Patents by Inventor Xinkun Ren

Xinkun Ren 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: 9970909
    Abstract: A device for evaluating a scale inhibitor for a circulating cooling water system, the device including: an open vessel, the open vessel including a first fixing hole, a second fixing hole, and at least one test hole; a stirrer; a test piece; a condenser; and a constant temperature heater. The open vessel is disposed inside the constant temperature heater. The first fixing hole is used to fix the stirrer. The second fixing hole is used to fix the condenser. The test hole is used to fix the test piece.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: May 15, 2018
    Assignee: NANJING UNIVERSITY
    Inventors: Hongqiang Ren, Zhanhui Shen, Ke Xu, Jinju Geng, Xinkun Ren
  • Patent number: 9182332
    Abstract: A device for testing a corrosion inhibitor, the device including: a circulating cooling water tank; a circulating water pump; a flowmeter; a five-port glass tube; a working electrode; a reference electrode; an auxiliary electrode; a heating rod; and an electrochemical workstation. The circulating water pump is connected to the circulating cooling water tank. The heating rod is fixed inside the circulating cooling water tank. The water inlet of the flowmeter is connected to the circulating water pump. The water outlet of the flowmeter is connected to the water inlet of the five-port glass tube. The water outlet of the five-port glass tube is connected to the circulating cooling water tank. The working electrode the reference electrode, and the auxiliary electrode are connected to the electrochemical workstation; and the electrochemical workstation is connected to a host computer.
    Type: Grant
    Filed: April 28, 2013
    Date of Patent: November 10, 2015
    Assignee: Nanjing University
    Inventors: Hongqiang Ren, Zhanhui Shen, Jinju Geng, Ke Xu, Xinkun Ren
  • Patent number: 9010735
    Abstract: A contact reaction tower, including: a central cylinder; and an outer cylinder. Lift pipes and a water inlet pipe(s) are installed in the central cylinder, reflux windows are formed on the wall of the central cylinder, and the water flow circulation between the central cylinder and the outer cylinder is realized through the lift pipes, the water inlet pipe(s), and the reflux windows, such that the water flow internal circulation of the whole contact reaction tower is realized. The contact reaction tower is sealed in its entirety from the outside environment, and a gas guide pipe is installed at the top of the contact reaction tower.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: April 21, 2015
    Assignee: Nanjing University
    Inventors: Hongqiang Ren, Ke Xu, Lili Ding, Xinkun Ren, Yanru Wang
  • Patent number: 8702992
    Abstract: A continuous flow reactor, including a cylindrical coagulation crystallizer, a funnel type protective baffle for static settling, and a conical static settler. A lower end surface of the cylindrical coagulation crystallizer is connected with an upper end surface of the conical static settler, and the funnel type protective baffle for static settling is connected with an inner wall of the cylindrical coagulation crystallizer.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: April 22, 2014
    Assignee: Nanjing University
    Inventors: Hongqiang Ren, Qiucheng Li, Tao Zhang, Lili Ding, Ke Xu, Xinkun Ren
  • Publication number: 20130325361
    Abstract: A device for evaluating a scale inhibitor for a circulating cooling water system, the device including: an open vessel, the open vessel including a first fixing hole, a second fixing hole, and at least one test hole; a stirrer; a test piece; a condenser; and a constant temperature heater. The open vessel is disposed inside the constant temperature heater. The first fixing hole is used to fix the stirrer. The second fixing hole is used to fix the condenser. The test hole is used to fix the test piece.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 5, 2013
    Inventors: Hongqiang REN, Zhanhui SHEN, Ke XU, Jinju GENG, Xinkun REN
  • Publication number: 20130284597
    Abstract: A device for testing a corrosion inhibitor, the device including: a circulating cooling water tank; a circulating water pump; a flowmeter; a five-port glass tube; a working electrode; a reference electrode; an auxiliary electrode; a heating rod; and an electrochemical workstation. The circulating water pump is connected to the circulating cooling water tank. The heating rod is fixed inside the circulating cooling water tank. The water inlet of the flowmeter is connected to the circulating water pump. The water outlet of the flowmeter is connected to the water inlet of the five-port glass tube. The water outlet of the five-port glass tube is connected to the circulating cooling water tank. The working electrode the reference electrode, and the auxiliary electrode are connected to the electrochemical workstation; and the electrochemical workstation is connected to a host computer.
    Type: Application
    Filed: April 28, 2013
    Publication date: October 31, 2013
    Applicant: Nanjing University
    Inventors: Hongqiang REN, Zhanhui SHEN, Jinju GENG, Ke XU, Xinkun REN
  • Publication number: 20120223447
    Abstract: A contact reaction tower, including: a central cylinder; and an outer cylinder. Lift pipes and a water inlet pipe(s) are installed in the central cylinder, reflux windows are formed on the wall of the central cylinder, and the water flow circulation between the central cylinder and the outer cylinder is realized through the lift pipes, the water inlet pipe(s), and the reflux windows, such that the water flow internal circulation of the whole contact reaction tower is realized. The contact reaction tower is sealed in its entirety from the outside environment, and a gas guide pipe is installed at the top of the contact reaction tower.
    Type: Application
    Filed: May 18, 2012
    Publication date: September 6, 2012
    Applicant: NANJING UNIVERSITY
    Inventors: Hongqiang REN, Ke XU, Lili DING, Xinkun REN, Yanru WANG
  • Publication number: 20120211433
    Abstract: A continuous flow reactor, including a cylindrical coagulation crystallizer, a funnel type protective baffle for static settling, and a conical static settler. A lower end surface of the cylindrical coagulation crystallizer is connected with an upper end surface of the conical static settler, and the funnel type protective baffle for static settling is connected with an inner wall of the cylindrical coagulation crystallizer.
    Type: Application
    Filed: April 30, 2012
    Publication date: August 23, 2012
    Applicant: NANJING UNIVERSITY
    Inventors: Hongqiang REN, Qiucheng LI, Tao ZHANG, Lili DING, Ke XU, Xinkun REN
  • Patent number: 8216471
    Abstract: An integrated bioreactor and its applications as well as a method for treatment of highly-concentrated organic wastewater using the same. The integrated bioreactor with a concentric columnar structure includes an inner layer and an outer layer, in which the inner layer is an upflow anaerobic sludge blanket (UASB) and the outer layer is a moving bed biofilm reactor (MBBR). The effluent of the MBBR is recycled into UASB via a reflux pump mounted between a water tank and the integrated bioreactor. A water outlet of the UASB is arranged with an on-line pH monitor and a mechanical agitation device is arranged on the top of a bottom water distributor. The bioreactor is low in cost, features friendly maintenance, stable operation, and high degree of automation, and can be applied under low temperature.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: July 10, 2012
    Assignee: Nanjing University
    Inventors: Hongqiang Ren, Ke Xu, Lili Ding, Jicheng Xie, Xinkun Ren
  • Publication number: 20120138527
    Abstract: An integrated bioreactor and its applications as well as a method for treatment of highly-concentrated organic wastewater using the same. The integrated bioreactor with a concentric columnar structure includes an inner layer and an outer layer, in which the inner layer is an upflow anaerobic sludge blanket (UASB) and the outer layer is a moving bed biofilm reactor (MBBR). The effluent of the MBBR is recycled into UASB via a reflux pump mounted between a water tank and the integrated bioreactor. A water outlet of the UASB is arranged with an on-line pH monitor and a mechanical agitation device is arranged on the top of a bottom water distributor. The bioreactor is low in cost, features friendly maintenance, stable operation, and high degree of automation, and can be applied under low temperature.
    Type: Application
    Filed: September 28, 2011
    Publication date: June 7, 2012
    Applicant: NANJING UNIVERSITY
    Inventors: Hongqiang REN, Ke XU, Lili DING, Jicheng XIE, Xinkun REN