| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | Systems, methods, and apparatus for determining online stress and life consumption of a heat recovery steam generator | US12907187 | 2010-10-19 | US09212569B2 | 2015-12-15 | William Barrett Julian; Ashok Dattatraya Acharya; Joel Donnell Holt; Robert John Gdaniec; Andrew John Groth |
| Certain embodiments of the invention may include systems, methods, and apparatus for determining online stress and life of a heat recovery steam generator. According to an example embodiment of the invention, a method for assessing components of a heat recovery steam generator (HRSG) is provided. The method includes receiving HRSG design parameters; monitoring thermal stress data from one or more temperature sensors in communication with one or more HRSG components; and determining cycle-related life consumption data associated with the one or more HRSG components based at least in part on the HRSG design parameters and the monitored thermal stress data. | ||||||
| 42 | HYDROSTATIC TEST DEVICE AND HYDROSTATIC TEST METHOD FOR HIGH PRESSURE TURBINE | US14572354 | 2014-12-16 | US20150198498A1 | 2015-07-16 | Ki Young NAM; Seung Hack Baek; Ho Joo Song |
| A hydrostatic test device for a turbine may include a plurality of feeding holes having a groove part formed with a greater diameter. Sealing members may be fitted into feeding holes in upper or lower casings of a turbine to seal the feeding holes. | ||||||
| 43 | HEAT EXCHANGER, HEAT ENGINE SYSTEM AND CONTROL METHOD USING THE SAME | US14092105 | 2013-11-27 | US20150052895A1 | 2015-02-26 | Sung-Wei Hsu; Chi-Ron Kuo |
| A heat exchanger is provided. The heat exchanger comprises an evaporator, a vapor-liquid separator, a liquid level sensor and a controller. The evaporator is used for heating a working fluid up to a vapor-liquid state, and has a working fluid inlet pipe and a working fluid outlet pipe. The vapor-liquid separator is connected to the working fluid outlet pipe for separating the working fluid into a vapor working fluid and a liquid working fluid. The liquid level sensor detects a level of the liquid working fluid inside the vapor-liquid separator and outputs a liquid level signal. The controller receives the liquid level signal and controls the vapor quality of the working fluid inside the evaporator. | ||||||
| 44 | Model-free adaptive control of supercritical circulating fluidized-bed boilers | US13739939 | 2013-01-11 | US08910478B2 | 2014-12-16 | George Shu-Xing Cheng; Steven L. Mulkey |
| A novel 3-Input-3-Output (3×3) Fuel-Air Ratio Model-Free Adaptive (MFA) controller is introduced, which can effectively control key process variables including Bed Temperature, Excess O2, and Furnace Negative Pressure of combustion processes of advanced boilers. A novel 7-input-7-output (7×7) MFA control system is also described for controlling a combined 3-Input-3-Output (3×3) process of Boiler-Turbine-Generator (BTG) units and a 5×5 CFB combustion process of advanced boilers. Those boilers include Circulating Fluidized-Bed (CFB) Boilers and Once-Through Supercritical Circulating Fluidized-Bed (OTSC CFB) Boilers. | ||||||
| 45 | Steam turbine performance testing | US13366481 | 2012-02-06 | US08903753B2 | 2014-12-02 | Scott Victor Hannula; Duncan George Watt |
| A steam turbine performance testing system, including at least one computer hardware device, including a neural network created using a dynamic steam turbine thermodynamic model and preliminary data collected from a steam turbine; a network tester for testing the neural network with testing data; a current performance calculator for calculating a current performance of the steam turbine from operation data of the steam turbine; and a projected performance calculator for calculating a projected performance of the steam turbine from the current performance. | ||||||
| 46 | METHOD AND APPARATUS FOR IMPROVING ELECTRO-HYDRAULIC AND ELECTRO-MECHANICAL INTEGRATED CONTROL SYSTEMS OF A STEAM TURBINE | US13798437 | 2013-03-13 | US20140260249A1 | 2014-09-18 | Vadim Shapiro; Pusin Boris |
| A means to effect a trip response regardless of the electro-mechanical actuator type used for improving electro-hydraulic and electro-mechanical integrated control systems for a steam turbine. To achieve this goal, electro-mechanical actuators can be equipped with multiple coils or multiple motors (usually a primary and a secondary). In a dual-coil configuration, the primary is energized according to an output of a PID controller, whereas the secondary coil is regulated by a separate control element. The entire system is powered by means of Uninterruptable Power Supply (UPS) with AC output which can provide sufficient time for trip response using primary coil or motor. At the same time, secondary coil or motor is powered by independent power from a UPS and/or separate battery backup. Whenever trip response is required, and there is a complete main power interruption secondary coil or motor is quickly energized to provide adequate trip response. | ||||||
| 47 | Systems, Methods, and Apparatus for Determining Online Stress and Life Consumption of a Heat Recovery Steam Generator | US13532481 | 2012-06-25 | US20120290225A1 | 2012-11-15 | William B. Julian; Ashok D. Acharya; Joel Donnell Holt; Robert John Gdaniec |
| Certain embodiments of the invention may include systems, methods, and apparatus for determining online stress and life consumption of a heat recovery steam generator (HRSG). According to an example embodiment of the invention, a method for assessing components of a HRSG is provided. The method includes receiving HRSG design parameters; determining thermal stress data associated with the one or more HRSG components based at least in part on one or more historical, real-time, or calculated temperature sensor data associated with the one or more HRSG components; and determining cycle-related life consumption data associated with the one or more HRSG components based at least in part on the HRSG design parameters and the determined thermal stress data. | ||||||
| 48 | METHOD AND SYSTEM FOR TESTING AN OVERSPEED PROTECTION SYSTEM OF A POWERPLANT | US12729624 | 2010-03-23 | US20110232258A1 | 2011-09-29 | Frederick William Block; Richard Lee Nichols; George Allen Ellis; Steven Michael Sanchez |
| Embodiments of the present invention have the technical effect of automatically testing an overspeed protection system associated with multiple powerplant machines of a powerplant. An embodiment of the present invention may automatically test the overspeed protection system while at least one of the powerplant machines is in the process of shutting down. Another embodiment of the present invention may automatically test the overspeed protection system by adjusting the speed of a shaft while at least one of the powerplant machines operates at full-speed-no-load. | ||||||
| 49 | POWER RECOVERY | US12990984 | 2009-05-06 | US20110100007A1 | 2011-05-05 | Harald B. Carrick; Graham Robert Aird; Graeme Humphries |
| The invention relates to a method and apparatus for recovering power from the gaseous stream produced by an oxidation reaction. Specifically, the invention is based on heating the gaseous stream from the oxidation reaction to a temperature of at least 800° C. and recovering energy through a gas turbine. The compressor stage of the gas turbine compresses the oxidant feed to the reactor thereby at least partially offsetting the cost of providing the high temperature and pressure reaction conditions in the reactor. The invention also provides improved control of the power recovery system by optimising the efficiency of the gas turbine by feeding gas to the gaseous stream to modulate the flow of gas to the turbine relative to the compressor discharge flow in order to compensate for the consumption of oxidant in the reactor. | ||||||
| 50 | Method and apparatus for assessing performance of combined cycle power-plants | US10028935 | 2001-12-28 | US20030125905A1 | 2003-07-03 | John Jacob Patanian; Jason Darrold Gayton |
| A method of determining performance impact of individual components of a power plant on overall thermal performance of the power plant, the method including (a) designing a first thermal model of the power plant using original specification data of the power plant; (b) developing a second thermal model of the power plant from measured performance data of each component of the power plant; and (c) determining the performance impact of a selected component of the power plant on the overall thermal performance of the power plant by substituting design performance data of the selected component in the first thermal model with its measured performance data. | ||||||
| 51 | Moisture detector for steam line | US753213 | 1976-12-22 | US4063228A | 1977-12-13 | Markus A. Eggenberger; Edward H. Miller |
| In a steam turbine, the presence of water slugs can have an adverse effect on certain turbine parts. One particular area of concern is the low-pressure end of the turbine wherein excess moisture is more likely to occur. Another source of moisture is an extraction line interconnecting a turbine stage with a feedwater heater. It is possible for wet steam and/or water slugs to travel from the feedwater heater to the turbine and vice-versa. The present invention provides a monitoring device for a steam conduit which detects the presence of water slugs or wet steam in a steam conduit and will further indicate a reverse direction of flow in the steam conduit. | ||||||
| 52 | Continuous Monitoring of Selenium in Water | US16227989 | 2018-12-20 | US20190219539A1 | 2019-07-18 | Chaoyang HUANG; Kristen JENKINS; Corey Alan TYREE |
| A method of continuously sampling and detecting a presence of selenium within water includes extracting an aqueous sample from a source of water, conditioning the aqueous sample within a conditioning unit to form a conditioned sample, where the conditioning includes providing the aqueous sample to the conditioning unit, combining a conditioning solution with the aqueous sample, where the conditioning solution comprises a combination of an oxidizing agent comprising nitric acid and a reducing agent comprising hydrochloric acid, and heating the sample combined with conditioning solution at a sufficient temperature and for a sufficient time period to convert selenium and/or selenate within the sample to selenite. The method further includes detecting a concentration of selenite in the conditioned sample within a detection unit. | ||||||
| 53 | ACTUATOR SPRING LIFETIME SUPERVISION MODULE FOR A VALVE AND ACTUATOR MONITORING SYSTEM | US15471897 | 2017-03-28 | US20180283221A1 | 2018-10-04 | Martin Reigl; Soeren Lange |
| The present application provides a method of evaluating fatigue damage in an actuator spring of a valve used in a turbine by a data acquisition system. The method may include the steps of receiving a number of operating parameters from a number of sensors including valve spindle position over time, determining cyclic loading on the actuator spring based upon the valve spindle position over time, generating an intended design lifetime for the actuator spring, determining a fatigue damage indicator based on the cyclic loading as compared to the intended design lifetime, and altering one or more of the operating parameters and/or initiating repair procedures based upon the fatigue damage indicator. | ||||||
| 54 | Systems and methods to improve shut-down purge flow in a gas turbine system | US15247161 | 2016-08-25 | US10082090B2 | 2018-09-25 | David August Snider; Lewis Berkley Davis, Jr.; Michael Joseph Alexander |
| A system includes a controller including a memory storing instructions and a processor that executes the instructions. The instructions cause the controller to control a steam turbine system coupled to a power generation system to release steam during deceleration of a gas turbine. The instructions cause the controller to receive a first temperature of the gas turbine and a rotational speed of the gas turbine. The instructions cause the controller to calculate an exhaust flow rate of the power generation system based on at least the first input signal and the second input signal. The instructions cause the controller to control the power generation system to isolate a fuel source from the gas turbine at a portion of normal operating speed of the gas turbine sufficient to achieve a predetermined purging volume during coast down of air flow through the power generation system based on the exhaust flow rate. | ||||||
| 55 | Systems and methods to improve shut-down purge flow in a gas turbine system | US15247146 | 2016-08-25 | US10082089B2 | 2018-09-25 | Michael Joseph Alexander; Lewis Berkley Davis, Jr.; David August Snider |
| A system includes a controller including a memory storing instructions to perform operations of a power generation system and a processor that executes the instructions. The instructions cause the controller to control purging fluid flow to an inlet of a gas turbine, an exhaust of the gas turbine, or a combustion section of the gas turbine. The instructions cause the controller to receive a first temperature at the inlet, a rotational speed of the gas turbine, and a purging fluid flow rate. The instructions cause the controller to calculate an exhaust flow rate of the system based on at least the first temperature, the rotational speed, and the purging fluid flow rate. The instructions cause the controller to control the system to isolate a fuel source from the gas turbine at a portion of normal operating speed sufficient to achieve a purging volume during coast down. | ||||||
| 56 | Systems and methods to improve shut-down purge flow in a gas turbine system | US15247129 | 2016-08-25 | US10082087B2 | 2018-09-25 | Michael Joseph Alexander; Lewis Berkley Davis, Jr.; David August Snider |
| A system includes a controller including a memory storing instructions and a processor that executes the instructions. The instructions cause the controller to receive a first input signal of a first temperature at an inlet of a gas turbine of a gas turbine and heat recovery steam generator (HRSG) system and a second input signal of a rotational speed of the gas turbine. The instructions also cause the controller to calculate the exhaust flow rate of the gas turbine and HRSG system based on the first input signal and the second input signal. Further, the instructions cause the controller to control the gas turbine and HRSG system to isolate a fuel source at a portion of normal operating speed of the gas turbine sufficient to achieve a predetermined purging volume during coast down of air flow through the gas turbine and HRSG system based on the exhaust flow rate. | ||||||
| 57 | SYSTEM AND METHOD FOR MONITORING A STEAM TURBINE AND PRODUCING ADAPTED INSPECTION INTERVALS | US15402708 | 2017-01-10 | US20180196894A1 | 2018-07-12 | Leonidas VENEDIKIS; Frank LEIDICH |
| A system and method for monitoring the operating conditions of a steam turbine and developing an adaptive inspection interval includes access to a digital data storage archive containing information relating to use and operation of comparable steam turbines and plant/service events, one or more turbine operational condition sensors for monitoring steam quality in real time during operation of the steam turbine. A processor calculates a steam quality value based upon cation conductivity of the steam used to operate the steam turbine as measured by the sensors. The processor uses the calculated steam quality information either alone or together with other acquired operational and parametric data to determine an adapted inspection interval for the steam turbine. The processor produces an output which includes the determined adapted inspection interval and may additionally include updated maintenance and repair schedules. A method for adapting an inspection interval for a particular steam turbine at a particular plant involves considering a calculated steam quality of the steam provided to the turbine, considering any available corrosion diagnostics data obtained during any turbine stand-still lay-off times, considering any relevant turbine fleet information and historical plant/service event information, and evaluating these parameters and informations to determine an adapted maintenance interval for the steam turbine. The method includes calculating a steam quality value in accordance with a predetermined formula based on a real-time measured conductivity of the steam provided to the turbine during operation and generating a output specifying an inspection interval adapted to the particular steam turbine and plant of operation. | ||||||
| 58 | SYSTEM AND METHOD FOR GENERATION OF ELECTRICITY FROM ANY HEAT SOURCES | US15257008 | 2016-09-06 | US20180066547A1 | 2018-03-08 | Mikhail M. Vaynberg |
| Transforming any heat sources to electric power, comprising a closed-cycle charged refrigerant loop. Low-pressure refrigerant fluid is pumped at 10 to 15 degrees F. higher of the ambient temperature through a heat exchanger heated by the heat of the gas outlet from the expander then to the boiler (heat exchanger) to boil the refrigerant liquid into a high-pressure and high temperature superheated by a few deg. F. gas (depending on the kind of refrigerant). Heated/pressurized refrigerant gas is inlet into an expander to power an output shaft during the expansion of the pressurized to a cooled gas. Cooled gaseous refrigerant with still high temperature is inlet to small heat exchanger to heat up the pumped liquid refrigerant before inlet to the boiler. The lowered temperature gas is condensed in condenser to liquid at low pressure and 10 to 15 degrees F. higher of ambient temperature media, and recycled by a pump to the heat exchangers. The refrigerant gas mass flow pressure drop spins the expander shaft for direct mechanical power take-off, or coupling to a synchronous or inductive generator to produce electricity. The electricity can be used locally, stored or fed to the grid. | ||||||
| 59 | SYSTEMS AND METHODS TO IMPROVE SHUT-DOWN PURGE FLOW IN A GAS TURBINE SYSTEM | US15247146 | 2016-08-25 | US20180058337A1 | 2018-03-01 | Michael Joseph Alexander; Lewis Berkley Davis, JR.; David August Snider |
| A system includes a controller including a memory storing instructions to perform operations of a power generation system and a processor that executes the instructions. The instructions cause the controller to control purging fluid flow to an inlet of a gas turbine, an exhaust of the gas turbine, or a combustion section of the gas turbine. The instructions cause the controller to receive a first temperature at the inlet, a rotational speed of the gas turbine, and a purging fluid flow rate. The instructions cause the controller to calculate an exhaust flow rate of the system based on at least the first temperature, the rotational speed, and the purging fluid flow rate. The instructions cause the controller to control the system to isolate a fuel source from the gas turbine at a portion of normal operating speed sufficient to achieve a purging volume during coast down. | ||||||
| 60 | DEVICE MAINTENANCE APPARATUS, DEVICE MAINTENANCE METHOD, DEVICE MAINTENANCE PROGRAM, AND RECORDING MEDIUM | US15600845 | 2017-05-22 | US20170344201A1 | 2017-11-30 | Ryouhei FURIHATA; Ayako KONO; Yuya IKETSUKI |
| A device maintenance apparatus includes: a comparison target selector configured to select comparison targets of a device information of a device as a maintenance target; and a display configured to display a comparative information generated based on changes in the device information. | ||||||
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