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    Steam network assembly for a plant comprising an ammonia-producing unit and a urea-producing unit
    2.
    发明授权
    Steam network assembly for a plant comprising an ammonia-producing unit and a urea-producing unit 有权

    公开(公告)号：US11293310B1

    公开(公告)日：2022-04-05

    申请号：US17419815

    申请日：2020-05-08

    申请人： YARA INTERNATIONAL ASA

    发明人： Danny Franceus ,  Lino Giovanni Porro

    IPC分类号： F01K7/38 ,  C07C273/04 ,  F01K7/12 ,  C01C1/04 ,  F01K15/00 ,  F01K7/10 ,  F01K7/34

    摘要： A steam network assembly for a plant including an ammonia-producing unit and a urea-producing unit, including a high-pressure steam line, two medium-pressure steam lines and first and second turbines supplied with high-pressure steam by the high-pressure steam line; wherein the first turbine is a condensing-type turbine with extraction into one of the two medium-pressure steam lines, and is configured to deliver power to a syngas compressor in the ammonia-producing unit of the plant, and the second turbine is a counter-pressure type turbine with extraction connected to the two medium-pressure steam lines and is configured to deliver power to a CO2 compressor in the urea-producing unit of the plant. A method to distribute high-pressure steam in a steam network assembly for a plant including an ammonia-producing unit and a urea-producing unit and a method to revamp the steam network assembly for a plant including an ammonia-producing unit and a urea-producing unit.

    SINGLE-WORKING-MEDIUM VAPOR COMBINED CYCLE
    3.
    发明申请
    SINGLE-WORKING-MEDIUM VAPOR COMBINED CYCLE 有权

    公开(公告)号：US20220178277A1

    公开(公告)日：2022-06-09

    申请号：US17606447

    申请日：2020-04-20

    申请人： Huayu Li

    发明人： Huayu Li

    IPC分类号： F01K7/10 ,  F01K13/00

    摘要： The single-working-medium vapor combined cycle is provided in this invitation and belongs to the field of energy and power technology. A single-working-medium vapor combined cycle method consisting of eleven processes which are conducted with M1 kg of working medium and M2 kg of working medium separately or jointly: performing a pressurization process to set a state (1) to (2) of the M1 kg of working medium, performing a heat-absorption and vaporization process to set a state (2) to (3) of the M1 kg of working medium, performing a depressurization process to set a state (3) to (4) of the M1 kg of working medium, performing a pressurization process to set a state (1) to (e) of the H kg of working medium, performing a heat-absorption process to set a state (e) to (7) of the H kg of working medium, performing a pressurization process to set a state (7) to (4) of the M2 kg of working medium, performing a heat-absorption process to set a state (4) to (5) of the (M1+M2) kg of working medium, performing a depressurization process to set a state (5) to (6) of the (M1+M2) kg of working medium, performing a mixed heat-releasing process to set a state (6) to (7) of the (M1+M2) kg of working medium and H kg of working medium, performing a depressurization process to set a state (7) to (8) of the (M1+H) kg of working medium, performing a heat-releasing and condensation process to set a state (8) to (1) of the (M1+H) kg of working medium.

    Process and system for extracting useful work or electricity from thermal sources
    5.
    发明授权
    Process and system for extracting useful work or electricity from thermal sources 有权

    公开(公告)号：US10711653B2

    公开(公告)日：2020-07-14

    申请号：US16066662

    申请日：2016-12-28

    申请人： BOUNDARY TURBINES INC

    发明人： Darrell Ford

    IPC分类号： F01K27/00 ,  F01K25/08 ,  F03G6/00 ,  F01K7/10 ,  F01K7/32 ,  F01K13/02 ,  F03G6/06 ,  F03G7/04 ,  H02K7/18 ,  F02G1/04

    摘要： A process and system of extracting useful work or electricity from a thermal source, wherein heat energy from the thermal source is used in the form of a heated collection fluid; a first side of a heat exchanger is filled with a liquid or supercritical working fluid; fluid flow out of the first side of the heat exchanger is closed such that a fixed volume of the working fluid is maintained in the first side; the heated collection fluid flowed through a second side of the heat exchanger that is adjacent to the first side to affect a transfer of heat from the heated collection fluid to the fixed volume of the working fluid to raise its temperature and pressure; the pressurized working fluid is released from the first side of the heat exchanger upon the working fluid reaching a threshold state; a flow of the pressurized working fluid is directed to an expander capable of converting the kinetic energy of the pressurized working fluid into useful work or electricity; and the foregoing steps are repeated. A plurality of such operably coupled heat exchangers may be used in a manner such that the timing of the pressurized working fluid from each heat exchanger to the expander is offset.