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| Number | Title | Issue Date |
| 8161749 | Cooled exhaust hood plates for reduced exhaust loss Cooled exhaust hood plates are provided in areas of high velocity steam flow within an exhaust steam flow of a steam turbine. Coolant is directed within double walled exhaust hood plates to cool plate surfaces adjacent to the high velocity exhaust steam flow. The co... | 04/24/2012 |
| 8112997 | Condensate polisher circuit A power generating system including a working fluid circuit. The power generating system includes a condenser system in the working fluid circuit and a condensate polisher circuit. The condenser system receives a working fluid that includes steam or a combination of... | 02/14/2012 |
| 8069667 | Deaerator apparatus in a superatmospheric condenser system A power generating system comprises a condenser and a deaerator apparatus. The condenser condenses a working fluid into a condensate and operates at an internal pressure above ambient pressure during a normal operating mode. The deaerator apparatus uses steam to rem... | 12/06/2011 |
| 7975484 | Apparatus and method for monitoring steam condenser air inleakage A method and apparatus reliable, accurate and continuous measurement of air inleakage into the condenser of a steam-electric power plant with convenient monitoring by power plant personnel. ... | 07/12/2011 |
| 7355828 | Turbo machinery speed monitor This invention relates to a speed monitor apparatus for monitoring speed and acceleration of rotating turbine equipment (turbomachinery) and for operating an overspeed trip to shut down the equipment in the event that the speed or acceleration exceed predetermined t... | 04/08/2008 |
| 7337613 | Method for monitoring and controlling steam turbine system pH using shaft current The present invention involves a system for controlling the electric charge within the exhaust hood and condenser of a steam turbine by using shaft current as an indirect measurement of exhaust charge, and then adjusting the pH accordingly. The present invention use... | 03/04/2008 |
| 7262967 | Systems for low cost coaxial liquid cooling According to some embodiments, systems for low cost coaxial liquid cooling may be provided. In some embodiments, a system may comprise an axis. The system may further comprise a heat exchanger coupled to a pump, wherein the heat exchanger and the pump are oriented w... | 08/28/2007 |
| 7162873 | Method of running a condenser for liquidation of steam or vapor The present invention relates to a system in which a process of condensing steam or vapor is used for cooling or heating an ambient environment. An increase in the effectiveness of the condensing process is achieved by adjusting the input of steam or vapor into the ... | 01/16/2007 |
| 6755023 | Method and device for evacuating a turbine condenser In order to evacuate a turbine condenser, air contained in the turbine condenser is suctioned using propellant steam from a starting jet pump. The propellant steam and the air are guided into an auxiliary condenser which is arranged downstream from turbine condenser... | 06/29/2004 |
| 6698205 | Device to increase turbine efficiency by removing electric charge from steam Small, rigid electrodes in the form of sharp-pointed rods ("pins") installed around the periphery of the diffuser at the exhaust of a steam turbine extend into the path of the wet steam flowing out of the turbine and remove electric charge from the steam,... | 03/02/2004 |
| 6588499 | Air ejector vacuum control valve The present invention comprises a method and device for deterring the freezing within a condenser by preventing critical pressure differentials from building up between the exhaust steam header and the air ejector systemy. The means for regulating pressur... | 07/08/2003 |
| 6484503 | Compression and condensation of turbine exhaust steam The invention consists a dual section vessel including a first section being a turbine exhaust steam enclosure and a second section being a condensate water vessel accumulation, both sections being connected by a system of water columns. The system of wat... | 11/26/2002 |
| 6336321 | Engine exhaust assembly for a motorcycle A partitioning member for dividing a connecting pipe into at least two exhaust passageways is provided in the connecting pipe, which is attached to an exhaust side of a silencer. A valve mechanism is operable to vary the passageway area of one of the exha... | 01/08/2002 |
| 6128905 | Back pressure optimizer The present invention is directed toward a method and device for increasing the energy efficiency of a power plant. The invention comprises monitoring the power consumption of a power plant subsystem. The subsystem being monitored should be a subsystem th... | 10/10/2000 |
| 6105368 | Blowdown recovery system in a Kalina cycle power generation system A method for capturing working fluid which includes a hazardous component and is discharged from a power generating system, includes directing the discharge to a container. There, the discharged working fluid is combined with a liquid in which the hazardo... | 08/22/2000 |
| 5992152 | Method for controlling electric charge within the exhaust hood and condenser of a steam turbine Sufficient negative charge density may be present in the wet steam flowing through the exhaust hood of a steam power generating unit to cause intense electrical discharges which cause severe corrosion of exposed carbon steel members and generate turbulenc... | 11/30/1999 |
| 5437157 | Method of and apparatus for cooling hot fluids The cooling of a hot fluid is effected using a heat exchanger adapted to receive the hot fluid and liquid coolant for cooling the hot fluid such that the liquid coolant is vaporized. A turbine, having an output shaft connected to a fan, is responsive to v... | 08/01/1995 |
| 5005351 | Power plant condenser control system A system and method for controlling the operation of a steam condenser in a power plant which includes a steam turbine, the condense having: a steam flow path including a steam inlet connected to receive turbine exhaust steam from the turbine steam outlet... | 04/09/1991 |
| 4958679 | Condenser for the water-steam loop of a power plant, in particular a nuclear power plant A condenser for the water-steam loop of a power plant includes a condensate-filled lower portion. A heating pipe system is disposed in the lower portion and nozzles are disposed on the heating pipe system through which heating condensate or heating steam ... | 09/25/1990 |
| 4811196 | Steam control system and method The system and method of the present invention calls for reducing steam from one pressure down to a second pressure. Further, the steam st the one pressure is mixed with the steam at the second pressure. The mixed steam is provided for use in a process. T... | 03/07/1989 |
| 4753077 | Multi-staged turbine system with bypassable bottom stage An improved multi-stage turbine system is provided which includes a high pressure turbine stage assembly and at least one lower pressure turbine stage assembly. Each of these turbine assemblies preferably has an inlet opening for introducing a thermodynam... | 06/28/1988 |
| 4736590 | Apparatus and method for continuously monitoring non-condensable gases in a flow of mixed gases Disclosed is an apparatus for continuous measurement of the proportion of relatively non-condensable gases in a flow of mixed gases such as geothermal steam. The apparatus is an open system which detects the proportion of relatively non-condensable gases ... | 04/12/1988 |
| 4642992 | Energy-saving method and apparatus for automatically controlling cooling pumps of steam power plants A system for energy-efficiently operating large capacity cooling pumps in a steam cycle electrical power generating plant which condenses steam using ambient water (e.g., from a lake, cooling tower, or stream) supplied by two or more large electrical moto... | 02/17/1987 |
| 4510757 | Heat engine An engine which can operate satisfactorily on sources of relatively low heat, such as waste heat given off by steam generating plants, includes a heating tank operably positioned with respect to a source of heat so that fluid within the tank is heated. Th... | 04/16/1985 |
| 4471622 | Rankine cycle apparatus A Rankine cycle apparatus comprises a circulating pump for circulating a working medium through the apparatus, a gas generator having a tube connected with the outlet side of the circulating pump wherein the working medium flowing in the tube is evaporate... | 09/18/1984 |
| 4466253 | Flow control at flash tank of open cycle vapor compression heat pumps An arrangement of controls for a vapor compression open cycle industrial process heat pump permits the level of liquid and fluid pressure in a flash tank to be simultaneously and independently monitored and regulated to assure efficient operation of the s... | 08/21/1984 |
| 4365476 | Condensation system for power plant Condensation system for use in a power plant. The condensate system includes side stream condenser defining therein first and second hot wells. Condensate is delivered from the first to second hot well through a condensate feed line. Condensate is introdu... | 12/28/1982 |
| 4291538 | Power producing dry cooling apparatus and method Spent steam from a steam driven electric generating power plant is condensed by heat rejection to a refrigerant in a closed loop. The closed refrigerant loop contains an expander and a compressor, and a heat exchanger in a cooling tower. The compressor an... | 09/29/1981 |
| 4272962 | Pressure controller for dual purpose steam turbine power plant At least one heat exchanger section including a conventional heat exchanger is disposed in a dual purpose steam turbine power plant to utilize steam extracted from the steam turbine to one section of the heat exchanger for the purposes of heating process ... | 06/16/1981 |
| 4229943 | Steam engine A steam engine wherein the inlet and relief valves are subjected to balanced stresses and the pressure of steam is maintained above the critical point. The engine can be braked electrically, mechanically and with steam; the braking with steam takes place ... | 10/28/1980 |
| 4189924 | Ocean thermal energy conversion system and method for operation A power generation system and method of operation for generating electricity by utilizing temperature differences inherently present in the ocean between water near the surface and water from the ocean's depths. A pump provides relatively warm, surface oc... | 02/26/1980 |
| 4165616 | Apparatus and method for restricting turbine exhaust velocity within a predetermined range An apparatus and method for controlling fluid velocity exhausting from an elastic fluid turbine within a predetermined range. Elastic fluid flow rate and velocity is measured through the turbine's exhaust stage and coolant flow rate to heat exchange tubes... | 08/28/1979 |
| 4080790 | Safety system for a steam turbine installation A steam turbine installation includes a safety system located in the steam flow path having a stop valve located in the steam flow path upstream of the turbine and a vacuum break valve located in the stream flow path downstream of the turbine, and a combi... | 03/28/1978 |
| 4045961 | Control of freezing in air-cooled steam condensers Damage to steam condensers resulting from freezing of condensate when operating at below freezing ambient air temperature and at low steam flow rates and/or low ambient temperatures is prevented by causing air or other non-condensible inert gas or gases t... | 09/06/1977 |
| 4023364 | Swing flow supplemental travel for an excavator Disclosed herein is a drive and swing control system for an excavator wherein the swing pump may selectively direct fluid to the drive motors of the vehicle when the swing motor of the vehicle is not in use.... | 05/17/1977 |
