| KOREA POWER ENGINEERING COMPANY, INC. Patent applications |
| Patent application number | Title | Published |
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| 20120299205 | SYSTEM FOR DENITRIFYING EXHAUST GAS CAPABLE OF PREVENTING BLOCKAGES IN A UREA WATER INFLOW PATH AND AN INJECTION NOZZLE, AND DEVICE FOR SUPPLYING UREA WATER CAPABLE OF PREVENTING THE COAGULATION OF UREA WATER - A system for denitrifying exhaust gas, including a urea water injection unit for supplying urea water and air to a reaction chamber, wherein the urea water injection unit includes: an air supply unit for supplying external air to an injector through an air supply line; a urea water supply unit for supplying urea water to the injector through a urea water supply line; a water supply unit for supplying water to the injector through a water supply line connected to one side of the urea water supply line; a flow control valve for selectively supplying water or urea water to the injector through the urea water supply line; and the injector respectively connected to the air supply unit and the urea water supply unit to selectively discharge air, urea water or water to the reaction chamber through an injection nozzle. | 11-29-2012 |
| 20110024137 | UNIFIED FIRE EXTINGUISHING SYSTEM FOR TURBINE BEARING IN POWER PLANT - A unified fire extinguishing system for a turbine bearing in a power plant, the system puts out a fire that breaks out due to overheating of a lubricant oil due to friction between a turbine shaft disposed inside a turbine bearing housing in the power plant and a turbine bearing that rotatably supports the turbine shaft, and the system includes: a spray nozzle separate from the turbine bearing and disposed inside the turbine bearing housing; and a connection pipe having one end connected to the spray nozzle and the other end connected to a sprinkler pipe, wherein, when a fire breaks out in the turbine bearing housing due to overheating of the lubricant oil, a fire extinguishing fluid supplied from the sprinkler pipe for putting out a fire passes through the connection pipe and is discharged into the turbine bearing via the spray nozzle. | 02-03-2011 |
| 20100132291 | STEEL PLATE STRUCTURE AND STEEL PLATE CONCRETE WALL - A steel plate structure and a steel plate concrete wall are disclosed. A steel plate structure, which includes: a pair of steel plates, which are separated to provide a predetermined space; a structural member, which is positioned in the predetermined space, and which is structurally rigidly joined to one side of the steel plate in the direction of gravity; and a strut, which maintains a separation distance between the pair of steel plates, can be utilized to reduce the overall thickness of a steel plate concrete wall for efficient use of space, and to reduce the thickness of the steel plates for better welding properties and larger unit module sizes. Also, the axial forces or lateral forces applied on the steel plate concrete wall may be effectively resisted. | 06-03-2010 |
| 20100080334 | METHOD AND APPARATUS FOR VERIFYING PERFORMANCE OF CONTROL SYSTEM OF NUCLEAR POWER PLANT - Provided are a method and apparatus for validating dynamic performance of a control system of a nuclear power plant in operation, without performing a power ascension test. According to the present invention, when the performance of the control system requires to be validated in order to change a control logic or its setpoint of or to replace hardware of the control system, the dynamic performance of the control system may be validated without performing the power ascension test which can be performed only in a trial operation and requires large expenses. In the present invention, a design computer code capable of simulating a transient state of the nuclear power plant is connected to the hardware of the control system, and tests to be performed at the power ascension test or in the transient state of the nuclear power plant are simulated by directly using the hardware of the control system instead of a control system model of the design computer code, in an on-line state. | 04-01-2010 |
| 20090127194 | ELECTRODIALYSIS REVERSAL AND ELECTROCHEMICAL WASTEWATER TREATMENT METHOD OF COMPOUND CONTAINING NITROGEN - Provided is a wastewater treatment method using an electrodialysis reversal (EDR)-electrochemical wastewater treatment (EWT) combined process, the method including: separating inflow wastewater which contains nitrogen compounds into product water and concentrated water using an EDR facility; and decomposing the concentrated water into target materials to be eliminated from the wastewater in an EWT facility. Provided is a wastewater treatment method for decomposing inflow water containing a nitrogen-containing compound into target materials to be eliminated using an EWT facility alone. According to the wastewater treatment method, product water which is flowed out from an EDR facility can be reused as raw water, and the method guarantees reliability and stability by simultaneously processing recalcitrant COD and T-N in the concentrated water. The wastewater treatment method efficiently removes recalcitrant COD and T-N, which are derived from ethanolamine (ETA), in wastewater produced in a power plant and an industrial facility using ETA as a pH-adjusting agent. EDR-EWT process can be easily combined with a common wastewater treatment and can efficiently and stably treat wastewater containing recalcitrant COD and T-N. Therefore, the method can actively satisfy the strengthening environmental regulation criteria. | 05-21-2009 |
