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    METHOD FOR INHIBITING HIGH TEMPERATURE CORROSION OF HEAT EXCHANGE SURFACE OF BIOMASS BOILER
    12.
    发明申请
    METHOD FOR INHIBITING HIGH TEMPERATURE CORROSION OF HEAT EXCHANGE SURFACE OF BIOMASS BOILER 有权

    公开(公告)号：US20220113022A1

    公开(公告)日：2022-04-14

    申请号：US17500360

    申请日：2021-10-13

    Applicant: Zhejiang University

    Inventor： Zhongyang Luo ,  Chunjiang Yu ,  Qinhui Wang ,  Mengxiang Fang ,  Hengli Zhang ,  Leming Cheng

    IPC: F23B90/02 ,  C23F15/00 ,  F28F19/02 ,  F23J7/00 ,  G01B21/08 ,  F26B3/04

    Abstract: The present invention provides a method of preventing high temperature corrosion on a heat exchanging surface of a biomass boiler, including: a first feeding step, supplying a first biomass fuel to the boiler; a deposition step, performing combustion on the first biomass fuel during initial operation of the boiler, and forming an inert deposition layer on a surface of a heat exchanger of the boiler; a second feeding step, supplying a second biomass fuel different from the first biomass fuel to the boiler; and a normal combustion step, performing combustion on the second biomass fuel. A direct contact of an alkali metal chloride with a metal pipe wall is prevented by forming an inert deposition layer on the surface of the heat exchanger of the boiler in the deposition step, thereby establishing a physical barrier between the heat exchanging surface of the boiler and the alkali metal chloride to effectively solve a problem of preventing corrosion on the metal pipe wall of the boiler.

    Sampling and preparation system and its implementation method
    15.
    发明授权
    Sampling and preparation system and its implementation method 有权

    公开(公告)号：US10215667B1

    公开(公告)日：2019-02-26

    申请号：US15858548

    申请日：2017-12-29

    Applicant: Zhejiang University

    Inventor： Zhongyang Luo ,  Yuxing Tang ,  Chunjiang Yu ,  Mengxiang Fang ,  Qinhui Wang ,  Tao Wang

    IPC: G01T1/20 ,  G01N1/22 ,  B01D53/50 ,  B01D53/34 ,  G01T1/204 ,  G01N33/00

    Abstract: A sampling and preparation system is positioned in a coal and biomass co-fired power station, which includes a sampling pipe connected with a boiler flue of the co-fired power station. The sampling pipe from the end close to the boiler flue to the other end away from the boiler flue includes a filtering device, a mass flow controller, a carbon dioxide trap and a pumping device. The sampling and preparation system also includes a carbon dioxide transfer device and a 14C testing device. The carbon dioxide transfer device is applied to transferring the carbon dioxide from the carbon dioxide trap to the 14C testing device which is applied to measuring the 14C in the carbon dioxide sample. The system may calculate the biomass blending ratio of the coal and biomass co-fired power station rapidly.

    Method and system for directly and rapidly detecting 14C of carbon dioxide
    16.
    发明授权
    Method and system for directly and rapidly detecting 14C of carbon dioxide 有权

    公开(公告)号：US12253638B2

    公开(公告)日：2025-03-18

    申请号：US18193940

    申请日：2023-03-31

    Applicant: Zhejiang University

    Inventor： Zhongyang Luo ,  Yinchen Wang ,  Chunjiang Yu ,  Qinhui Wang

    IPC: G01T1/178 ,  G01T1/204

    Abstract: In the technical field of power generation, a method and system for directly and rapidly detecting 14C of carbon dioxide, which can quickly complete a 14C activity measurement of carbon dioxide, while further improving uniformity and accuracy for directly and rapidly detecting 14C of carbon dioxide. The method includes: pressurizing and liquefying gaseous carbon dioxide to obtain liquid carbon dioxide; mixing the liquid carbon dioxide with a cosolvent and a scintillator in a pressure vessel to obtain a mixed solution; and placing the pressure vessel in a liquid scintillation counter for carrying out radiocarbon activity detection.

    System of ultra-low nitrogen oxide emissions, negative carbon emissions and control method thereof
    18.
    发明授权
    System of ultra-low nitrogen oxide emissions, negative carbon emissions and control method thereof 有权

    公开(公告)号：US11976242B2

    公开(公告)日：2024-05-07

    申请号：US17713781

    申请日：2022-04-05

    Applicant: Zhejiang University

    Inventor： Zhongyang Luo ,  Qinhui Wang ,  Chunjiang Yu ,  Jinsong Zhou ,  Mengxiang Fang ,  Yinchen Wang

    IPC: C10B53/02 ,  B01D45/16 ,  C10B41/00 ,  C10B57/10

    CPC classification number: C10B53/02 ,  B01D45/16 ,  C10B41/00 ,  C10B57/10

    Abstract: A system for use in carbon negative emission methods, a nitrogen oxide ultra-low emission system, an air supply device and a flow control module. The system for use in carbon negative emission methods enables biomass to produce inorganic carbon and pyrolysis gas/gasification gas to realize negative emission of carbon. The nitrogen oxide ultra-low emission system enables fuel to be in mixed combustion with the pyrolysis gas/gasification gas to remove nitrogen oxides, which realizes ultra-low emission of the nitrogen oxides. The air supply device is in communication with a biomass pyrolysis coupling partial gasification and is in communication with the system for use in carbon negative emission methods and the nitrogen oxide ultra-low emission system. The pyrolysis gas/gasification gas enters the nitrogen oxide ultra-low emission system. The flow control module controls a flow ratio of a pyrolysis agent/gasification agent entering the system for use in carbon negative emission methods and flow of the pyrolysis gas/gasification gas and air entering the nitrogen oxide ultra-low emission system.

    Turbine and brayton cycle including same
    19.
    发明授权
    Turbine and brayton cycle including same 有权

    公开(公告)号：US11015463B2

    公开(公告)日：2021-05-25

    申请号：US16444580

    申请日：2019-06-18

    Applicant: Zhejiang University

    Inventor： Gang Xiao ,  Kaixiang Xing ,  Tianfeng Yang ,  Mingjiang Ni ,  Zhongyang Luo ,  Kefa Cen

    IPC: F01D5/28 ,  F01D5/18 ,  F03G6/06 ,  F02C1/05 ,  F01K25/10

    Abstract: A turbine for solar thermal power generation and a Brayton cycle are disclosed. The turbine includes a blade which has a cooling working medium inlet and a cooling working medium jet orifice. The blade is provided as a cavity with hollow interior; the cooling working medium inlet is located inside the blade; the cooling working medium jet orifice is provided on the blade surface on which is provided a spectral conversion coating; the spectral conversion coating converts heat on the blade surface into conversion characteristic band radiation which is radiation energy adjacent to cooling working medium characteristic band radiation of a cooling working medium. The turbine adopts a characteristic spectral coating and a jet cooling to enhance the cooling effect for a turbine blade and to improve the system efficiency of the Brayton cycle.

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