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公开(公告)号：US11680757B2
公开(公告)日：2023-06-20
申请号：US16924407
申请日：2020-07-09
发明人： Frederic Vitse
CPC分类号： F28F27/00 , F28F19/00 , F28F27/02 , F22B37/025 , F28F2200/00
摘要： A system and method of controlling corrosion of a heat exchanger, having a hot gas inlet and outlet and a cold side inlet and outlet. The method includes determining a temperature of the heat exchanger at a first selected location, controlling a temperature of a corrosion sensing device to a first selected temperature based on the temperature of the surface of the heat exchanger and determining a corrosion rate associated with the heat exchanger surface at the first selected location for the first selected temperature. The method also includes comparing the corrosion rate to an expected corrosion rate, determining a cold side fluid inlet temperature target for the heat exchanger based at least in part on the comparing, the determined corrosion; and controlling a cold side fluid inlet temperature based at least in part on the determined inlet temperature target, determined corrosion rate, and expected corrosion rate.
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公开(公告)号：US20220243908A1
公开(公告)日：2022-08-04
申请号：US17723408
申请日：2022-04-18
申请人： ZHEJIANG UNIVERSITY
发明人： ZENGYI MA , JIANHUA YAN , YIKE ZHANG , WENHAN LI , RUOFENG GAO , ZHE CHEN , YAMING CAI , PUCHENG ZHONG
摘要： Disclosed is a heat exchange tube of waste heat boiler, which includes a tube body. The outer surface of the tube body is sprayed with a layer of anti-corrosion coating. The components of the anti-corrosion coating are Al2O3, CaAl2O4 and Ca3(PO4)2. On the surface of nano anti-corrosion coating, HF reacts with Al2O3, CaAl2O4 and Ca3(PO4)2 to form AlF3 and Ca5(PO4)3F, which are tightly wrapped on the surface of the coating, thereby effectively preventing HF from corroding the interior of the coating and the heat exchange tube. Meanwhile, due to the anti-corrosion coating with the specific composition of the present disclosure, the heat exchange tube of the present disclosure can be resistant to fluorine corrosion at a high temperature of 600° C. or more, and can be used at a rather high temperature of 1000° C. or more.
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公开(公告)号：US20210010672A1
公开(公告)日：2021-01-14
申请号：US16747585
申请日：2020-01-21
发明人： Timo Karjunen
摘要： A method and apparatus for protecting a furnace floor of a black liquor recovery boiler, where the furnace floor is covered by a protective layer, the protective layer being formed of a salt mixture including at least two different salts.
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公开(公告)号：US10753600B2
公开(公告)日：2020-08-25
申请号：US15578371
申请日：2016-06-03
发明人： Aleksandar Kovacevic
摘要： A power generating system includes a condensing steam turbine fed with steam from a boiler, wherein the air supply for the boiler combustion process is preheated by means of a heat pump system comprising at least one heat pump with at least one compressor, before entry to the boiler. A method for generating power using the power generating system is also described. A method and apparatus for extracting heat from the gases of a combustion process are also described.
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公开(公告)号：US10378757B2
公开(公告)日：2019-08-13
申请号：US13717472
申请日：2012-12-17
摘要： In a method for reducing the oxygen content in the flow volume of tubes of erected and installed tube wall regions or tube wall segments of a steam generator or steam boiler of a power station fired, in particular, with carbon-containing fuel, a solution is to be provided which eliminates or at least diminishes the problem of the incorporation of atmospheric oxygen into the boiler water which arises when tubes of the steam generator wall are being filled with boiler water and/or when boiler water is being discharged from these tubes. This is achieved in that an inert gas or an inert gas mixture is introduced into tubes of the tube wall regions or tube segments, through which boiler water or steam formed from this flows when the power station is in operation, before filling with boiler water or steam, in a way whereby gaseous oxygen present in the respective flow volume of the tubes, particularly in the form of atmospheric oxygen, is displaced, and/or an inert gas or an inert gas mixture is introduced during a discharge of boiler water or steam from the respective flow volume of the tubes, in a way whereby the free volume occurring is filled.
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6.发明授权公开(公告)号：US10295174B2
公开(公告)日：2019-05-21
申请号：US15058048
申请日：2016-03-01
申请人： Skavis Corporation
IPC分类号： G06F19/00 , F22B35/16 , F22D1/06 , F22B35/10 , F22B29/06 , F22B37/02 , F22B35/00 , F22B15/00 , F22D1/02 , F22D5/28
摘要： The current disclosure relates to a method of steam generation. Particularly, the current disclosure relates to steam generation supply apparati and associated control systems that are used for enhanced oil recovery. Certain embodiments are provided including methods and associated control systems related to the startup as well as main steam pressure header control or maintenance of a desired steam quality for such steam generation systems during normal operation.
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公开(公告)号：US20190049105A1
公开(公告)日：2019-02-14
申请号：US16078658
申请日：2017-02-21
申请人： In Dung MOON
发明人： In Dug MOON , Sun Jae MOON
IPC分类号： F22B37/24 , F22B37/02 , G21C15/253
摘要： An apparatus for cooling a substructure of a steam generator in a nuclear reactor is provided. The apparatus includes a plurality of stud bolts (110) fastening a skirt of the steam generator to a sliding base. Each stud bolt is provided at the center thereof with an axial through hole (112), a flange of the skirt is provided on one side thereof with a vent passage (122), and each stud bolt is provided with at least one vent hole (114) communicating with the axial through hole (112), thereby forming an air circulation/cooling path between the vent passage (122) and the axial through hole (112) via the vent hole (114).
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公开(公告)号：US20170008784A1
公开(公告)日：2017-01-12
申请号：US15115463
申请日：2015-02-23
发明人： Chikako SHIMPO , Yukimasa SHIMURA
CPC分类号： C02F1/686 , C02F1/008 , C02F2209/005 , C02F2209/006 , C02F2209/02 , C02F2209/05 , C02F2209/40 , F22B37/025
摘要： A device for controlling injection of chemical into a boiler and a chemical injection method can control an injection amount such that a chemical concentration is obtained as per a target even in a boiler feed-water facility where a flow rate of feed-water varies to a large extent in a short period. The device controls an amount discharged by a chemical injection pump in proportion to a flow rate measured by a flowmeter. An average chemical concentration in a feed-water is calculated from an amount of feed-water per predetermined period obtained by the flowmeter and a reduction in the amount of chemical in a tank per predetermined period obtained by a sensor. The chemical injection pump is controlled on the basis of the calculated average chemical concentration and a preset target chemical concentration of the feed-water so that the average chemical concentration is within the target chemical concentration range.
摘要翻译： 用于控制将化学品注入锅炉的装置和化学喷射方法可以控制喷射量，使得即使在供水流量变化到一个锅炉给水设备的锅炉给水设备中也可以根据目标获得化学浓度 很大程度上在短时间内。 该装置根据由流量计测量的流量来控制由化学注射泵排出的量。 通过由流量计获得的每预定周期的进料量的量计算进料水中的平均化学浓度，并且通过传感器获得的每个预定周期中的罐中的化学品量减少。 基于计算的平均化学浓度和给水的预设目标化学浓度控制化学注入泵，使得平均化学物质浓度在目标化学物质浓度范围内。
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公开(公告)号：US09404393B2
公开(公告)日：2016-08-02
申请号：US13071118
申请日：2011-03-24
申请人： Raymond Pang , Raub Warfield Smith
发明人： Raymond Pang , Raub Warfield Smith
CPC分类号： F01K13/02 , F01K23/10 , F01K23/108 , F22B37/025 , Y02E20/16
摘要： A combined cycle power plant in which a gas turbine engine generates power, a heat recovery steam generator (HRSG) produces steam from high energy fluids produced from the generation of power in the gas turbine engine and a steam turbine engine generates additional power from the steam produced in the HRSG. The combined cycle power plant includes a heating element fluidly interposed between the steam turbine engine and the HRSG to heat fluid output from the steam turbine engine, which is to be fed to the HRSG and a control system to control an amount the fluid output from the steam turbine engine is heated by the heating element based on differences between HRSG and ambient temperatures.
摘要翻译： 一种燃气涡轮发动机产生动力的联合循环发电厂，热回收蒸汽发生器（HRSG）从在燃气涡轮发动机中产生动力产生的高能量流体产生蒸汽，蒸汽涡轮发动机从蒸汽产生附加功率 在HRSG中生产。 联合循环发电厂包括流体地插入在蒸汽涡轮发动机和HRSG之间的加热元件，以加热从蒸汽涡轮发动机输出的流体，该蒸汽涡轮发动机将被输送到HRSG;以及控制系统，以控制从 基于HRSG和环境温度之间的差异，蒸汽轮机由加热元件加热。
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10.发明授权Steam generation apparatus and associated control system and methods for providing a desired injection pressure 有权蒸汽发生装置和相关的控制系统以及用于提供期望的喷射压力的方法公开(公告)号：US09303866B2
公开(公告)日：2016-04-05
申请号：US14030656
申请日：2013-09-18
申请人： Skavis Corporation
CPC分类号： F22D1/06 , F22B15/00 , F22B29/06 , F22B35/00 , F22B35/10 , F22B37/02 , F22D1/12 , F22D1/38 , F22D5/28 , F22D5/34 , Y10T137/0324 , Y10T137/85986
摘要： The current disclosure relates to steam generation and supply apparati and associated control systems. Particularly, the current disclosure relates to such steam generation supply apparati and associated control systems that are used for enhanced oil recovery. Certain embodiments are provided including methods and associated control systems related to the startup as well as main steam pressure header control or maintenance of a desired steam quality for such steam generation systems during normal operation.
摘要翻译： 本公开涉及蒸汽发生和供应设备及相关控制系统。 特别地，本公开涉及用于增强采油的这种蒸汽发生供应装置和相关的控制系统。 提供了一些实施例，包括与正常操作期间相关的启动以及主蒸汽压力总管控制或维持这种蒸汽发生系统的期望蒸汽质量的方法和相关控制系统。
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