| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | PLANT AND METHOD FOR INCREASING THE EFFICIENCY OF ELECTRIC ENERGY PRODUCTION | US14379096 | 2013-02-04 | US20150007567A1 | 2015-01-08 | Piero Manzoni; Di Persico Lorenzo; Michele Scapolo |
| A plant (10, 110) for the production of electric energy comprises a fuel boiler (11) in which a fluid is heated in order to produce steam, a turbine (15) which is connected to an electric generator (16) and to which said steam is conveyed, and a condenser unit (19) which re-condenses the fluid output from the turbine so that it may be conveyed back to the steam generator. The return fluid along the path from the condenser unit (19) to the boiler passes through a preheating unit (22) which receives heat from the turbine steam bleed-offs (23) and from a thermodynamic solar field (25). By making suitable use of the heat produced by the solar field (25) and contained in the heat-carrier fluid which passes through it, it is possible to increase the overall efficiency of the plant (10, 110). Furthermore, advantageously, the heat-carrier fluid which passes through the thermodynamic solar field receives heat from the fuel boiler via a suitable exchanger (32) which allows an increase in the productivity of the solar field itself and, moreover, uses the residual heat of the main plant which otherwise would be lost. | ||||||
| 142 | STEAM POWER PLANT WITH AN ADDITIONAL FLEXIBLE SOLAR SYSTEM FOR THE FLEXIBLE INTEGRATION OF SOLAR ENERGY | US14101698 | 2013-12-10 | US20140202156A1 | 2014-07-24 | Olivier CLEMENT; Silvia VELM; Volker SCHÜLE |
| A thermal power plant is described comprising a solar collector field and a heat storage to allow the use of the thermal energy collected by the solar field with a time delay for the production of electricity in the steam power plant. | ||||||
| 143 | HERMETICALLY SEALED SOLAR WATER HEATER SYSTEM AND OPERATION METHOD FOR GENERATION OF ELECTRICITY FROM THERMAL POWER PLANT | US14005234 | 2012-03-13 | US20140026571A1 | 2014-01-30 | Raghunathan Rajagopal Valagam |
| The present invention discloses a hermitically sealed solar water heater system and operation method for generation of electricity from thermal power plant. Water storage tank (1) is hermitically sealed by diaphragm (13) to prevent feed water contamination. Solar energy based water heater (2) preheats feed water and raises water temperature close to the boiling point. The feed water heater by trapping the waste heat from the exhaust gases further heats the feed water and is pumped to the boiler and where it is converted to steam. The steam impinging on the turbine blades drives it and generates power from the generator. The steam condenses in the condenser and the water coming out of condenser is pumped to the overhead water tank and the process of power generation is continues uninterruptedly. | ||||||
| 144 | ECONOMIZER IN SOLAR TOWER PLANT AND OPERATING METHOD OF SAID PLANT | US13635289 | 2011-03-15 | US20130199183A1 | 2013-08-08 | Raul Navio Navio Gilaberte; Jose Maria Mendez Marcos; Javier Dominguez Rodriguez; Lucia Serrano Gallar |
| An economizer in a solar tower plant and operating method of said plant the purpose whereof is to make use of the heat from the heat losses generated around the solar tower receivers (3) to preheat the fluid with which the saturated steam or superheated steam solar receivers are fed. When the heat from the losses absorbed by the economizer (2) is not sufficient to achieve the necessary minimum temperature, a secondary economizer (4) is used which takes live steam (prior to it entering the turbine) and increases the temperature of the feed water of the receiver (3). | ||||||
| 145 | Coal-Fired Power Plant, and Method for Operating Coal-Fired Power Plant | US13578642 | 2011-02-07 | US20120324893A1 | 2012-12-27 | Yoshiharu Hayashi |
| A coal-fired power plant having a control unit including a first flow rate control valve for regulating a water flow rate of a water feed bypass system, a second flow rate control valve installed in an extraction pipe for extracting steam from a steam turbine, a first temperature sensor on a downstream side of a heat recovery device, and a second temperature sensor on a downstream side of a heat exchanger and the control unit regulates opening of the first and second flow rate control valves on the basis of an exhaust gas temperature detected by the first temperature sensor and a feed water temperature detected by the second temperature sensor.Accordingly, even when a recovery heat quantity of the heat recovery device installed on a gas duct is changed due to deterioration with age of a boiler, a reduction in plant reliability and plant efficiency can be suppressed. | ||||||
| 146 | METHOD AND SYSTEM FOR CONTROLLING WATER CHEMISTRY IN POWER GENERATION PLANT | US13255765 | 2010-03-09 | US20110318223A1 | 2011-12-29 | Toyoaki Miyazaki; Masato Okamura; Osamu Shibasaki; Hajime Hirasawa |
| A method for controlling water chemistry in a power generation plant including a low-pressure feedwater heater (18), a deaerator (19), and a high-pressure feedwater heater (20) disposed sequentially along a feedwater pipe (16) from a condenser (15) to a steam generator or a boiler (11) to control the chemistry of feedwater guided to the steam generator or the boiler includes the steps of: injecting an oxidant through an oxidant injection line (31) into feedwater flowing through the feedwater pipe disposed downstream of the condenser in such a way that a dissolved oxygen concentration in the feedwater ranges from 3 to 100 ppb while the feedwater is maintained to be neutral to form an oxide film on surfaces of the feedwater pipe, the low-pressure feedwater heater, the deaerator, the high-pressure feedwater heater, and other structural members that come into contact with the feedwater; and injecting a deoxidant through a deoxidant injection line (35) into the feedwater flowing through the feedwater pipe disposed downstream of the deaerator in such a way that the dissolved oxygen concentration in the feedwater flowing into the steam generator or the boiler lowers to 5 ppb or lower. | ||||||
| 147 | ECONOMIZER WATER RECIRCULATION SYSTEM FOR BOILER EXIT GAS TEMPERATURE CONTROL IN SUPERCRITICAL PRESSURE BOILERS | US12731539 | 2010-03-25 | US20110155347A1 | 2011-06-30 | Michael J. Hargrove; Gary J. Navitsky; Jason J. Wailgum; Bernard H. Walsh |
| A fluid recirculation system includes an arrangement of a flow control valve located to receive a flow of fluid from an inlet. The system further comprises an economizer inlet mixing device located to receive the flow of hotter fluid from the arrangement of the flow control valve and from a cooler feedwater stream. An economizer inlet mixing device located upstream of an economizer in a supercritical pressure boiler includes a sparger assembly through which a flow of fluid from the waterwall outlet is received, an inlet through which a flow of fluid from a feed stream is received, and a wave breaker assembly through which an outlet stream from the economizer inlet mixing device is directed. A method of increasing and controlling the temperature of a flue gas exiting an economizer in a supercritical pressure boiler includes receiving at least a flow of fluid from a fluid stream from a furnace waterwall outlet, combining at least a portion of the received flow of fluid with a feedwater stream, and directing the combined received flow of fluid and feedwater stream to an economizer inlet to decrease the economizer heat absorption. | ||||||
| 148 | HEAT RECOVERY APPARATUS AND HEAT RECOVERY METHOD | US12754741 | 2010-04-06 | US20100258005A1 | 2010-10-14 | Tsuyoshi Oishi; Hiroshi Tanaka; Takahiko Endo; Masahiko Tatsumi; Yasuyuki Yagi |
| A heat recovery apparatus, for an absorption apparatus for removing CO2 in combustion exhaust gas emitted from a thermal power plant 112 and for regeneration apparatuses 104 to 107 for regenerating CO2 in an absorbing liquid from the absorption apparatus, includes a regeneration-apparatus-exit-CO2-gas cooling apparatus 100 for cooling CO2 gas from an exhaust port of the regeneration apparatus, and may further include a circulation line 102 for circulating reflux water among boiler feedwater heaters 114 and 116 in the thermal power plant 112 and the regeneration-apparatus-exit-CO2-gas cooling apparatus 100. | ||||||
| 149 | INTEGRATED SPLIT STREAM WATER COIL AIR HEATER AND ECONOMIZER (IWE) | US12581637 | 2009-10-19 | US20100229805A1 | 2010-09-16 | Brian J. Cerney; William R. Stirgwolt; Melvin J. Albrecht; Kevin R. Thomas; George B. Brechun; John E. Monacelli |
| An integrated water coil air heater and economizer arrangement for a boiler has a feedwater inlet for supplying feedwater to the boiler, and conduits and a valve for splitting the feedwater from the inlet into a first partial lower temperature, lower mass flow stream, and a second partial higher temperature, higher flow stream. A water coil air heater for passage of air to be heated for the boiler contains at least one heat transfer loop in heat transfer relationship with the air, the heat transfer loop of the water coil air heater being connected to receive the first partial stream. An economizer for passage of flue gas to be cooled for the boiler contains at least one heat transfer loop in heat transfer relationship with the flue gas, the heat transfer loop of the economizer being connected to the heat transfer loop of the water coil air heater for receiving the first partial stream from the water coil air heater. A mixing location downstream of the economizer receives and reunites the first and second partial streams and a conduit carries the second partial stream from the feedwater inlet to the to the mixing location. | ||||||
| 150 | Method for operating a system for steam generation, and steam generator system | US033152 | 1993-03-16 | US5293842A | 1994-03-15 | Georg Loesel |
| A method for operating a system for steam generation includes generating steam from water by indirect heat exchange with hot flue gas, by first preheating condensed water and then evaporating the preheated water at high pressure. The method further includes cooling the preheated water which is already at high pressure, by heat exchange with at least one partial flow of the condensed water, at least in a partial-load range. A system for steam generation, such as in a gas and steam turbine plant, includes a steam generator through which hot flue gas flows. The steam generator has heating surfaces. One of the heating surfaces is a condensate preheater having primary and secondary sides. A heat exchanger is connected downstream of the condensate preheater on the primary side and is connected upstream of the condensate preheater on the secondary side. | ||||||
| 151 | Flue gas heat recovery system | US846748 | 1986-04-01 | US4660511A | 1987-04-28 | J. Hilbert Anderson |
| A method and apparatus for recovery of heat from the flue gas of the combustion furnace of a steam boiler or power generation plant uses a heat pump heat extracted from a lower temperature point in the system to a higher temperature point in the system. The flue gas is passed through an economizer to preheat the boiler feed water. The flue gas then passes to a direct contact gas cooler where a second stream of cooling water extracts heat from the flue gas. The second stream of cooling water is passed through the evaporator of the heat pump to heat a refrigerant. The refrigerant is compressed and then condensed in thermal contact with the boiler feed water to heat it before it enters the economizer. In a second embodiment a power generation plant has a steam turbine and an auxiliary vapor turbine. The flue gas is passed through a gas cooler and gives up heat to a stream of cooling water. The heat is extracted from stream of cooling water and pumped by a heat pump to heat a stream of refrigerant which drives the vapor turbine thus generating additional power. A third embodiment is also disclosed. | ||||||
| 152 | Locomotive attachment | US1324158D | US1324158A | 1919-12-09 | ||
| 153 | And william a | US1313991D | US1313991A | 1919-08-26 | ||
| 154 | Boiler. | US16784017 | 1917-05-10 | US1263586A | 1918-04-23 | MEIER EDWARD C |
| 155 | Means for feeding water to boilers. | US1910595580 | 1910-12-05 | US996812A | 1911-07-04 | THOMPSON JOHN |
| 156 | Feed-water heater. | US1906323289 | 1906-06-25 | US861667A | 1907-07-30 | MORGAN SYLVESTER A |
| 157 | Feed-water heater and purifier. | US1901062945 | 1901-06-03 | US726243A | 1903-04-28 | BEHA JOSEPH |
| 158 | Island | US601485D | US601485A | 1898-03-29 | ||
| 159 | Furnace | US581179D | US581179A | 1897-04-20 | ||
| 160 | Feed-water-heating chamber | US549512D | US549512A | 1895-11-12 | ||
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