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11.发明授权公开(公告)号：US11994286B2
公开(公告)日：2024-05-28
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 , F22B37/02 , F23G5/48 , F23G7/00 , F23J7/00 , F26B3/04 , F28F19/02 , G01B21/08 , C23C26/00
CPC classification number: F23B90/02 , C23F15/00 , F23J7/00 , F26B3/04 , F28F19/02 , G01B21/08 , F28F2245/00
Abstract: 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 and the alkali metal chloride to prevent corrosion on the metal pipe wall.
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12.发明申请公开(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
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.
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13.发明授权公开(公告)号：US10578341B2
公开(公告)日：2020-03-03
申请号：US14898694
申请日：2014-12-12
Applicant: Zhejiang University
Inventor： Gang Xiao , Tianfeng Yang , Mingjiang Ni , Zhongyang Luo , Xiang Gao , Kefa Cen , Mengxiang Fang , Jinsong Zhou , Zhenglun Shi , Leming Cheng , Qinhui Wang , Shurong Wang , Chunjiang Yu , Tao Wang , Chenghang Zheng
Abstract: A dual-cavity method and device for collecting and storing solar energy with metal oxide particles. Solar radiation irradiates into a light receiving cavity of a dual-cavity, heat-collecting reactor to heat a separating plate and preheat metal oxide particles. The preheated metal oxide particles then enter a reacting cavity. As temperature increases, the metal oxide particles reduce to release oxygen, which discharges through a gas outlet. Reduced metal oxide particles discharge through a particle outlet into a particle storage tank, and then into an oxidation heat exchanger to react with the discharged oxygen discharged to release and transfer stored chemical energy to a medium to be heated. The oxidized metal oxide particles are conveyed into a storage tank, and again enter into a particle inlet of the light receiving cavity. Ambient air controls the gas flow rate in the reactor and the reacting rate in exchanger.
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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
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.
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